{"id":3757,"date":"2026-05-27T00:05:24","date_gmt":"2026-05-27T00:05:24","guid":{"rendered":"https:\/\/wolorin.com\/?page_id=3757"},"modified":"2026-06-10T03:27:21","modified_gmt":"2026-06-10T03:27:21","slug":"film-converting-defects","status":"publish","type":"post","link":"https:\/\/wolorin.com\/ja\/blog\/film-converting-defects\/","title":{"rendered":"\u30d5\u30a3\u30eb\u30e0\u52a0\u5de5\u3067\u3088\u304f\u767a\u751f\u3059\u308b\u4e0d\u826f"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"3757\" class=\"elementor elementor-3757\">\n\t\t\t\t<div class=\"elementor-element elementor-element-a91723f e-flex e-con-boxed e-con e-parent\" data-id=\"a91723f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-bf85dd5 e-con-full e-flex e-con e-child\" data-id=\"bf85dd5\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-75f7f498 e-con-full e-flex e-con e-child\" data-id=\"75f7f498\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4486cb5c elementor-widget elementor-widget-heading\" data-id=\"4486cb5c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Common Film Converting Defects<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-57570238 e-grid e-con-full e-con e-child\" data-id=\"57570238\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-555e8236 e-con-full e-flex e-con e-child\" data-id=\"555e8236\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3f05412a elementor-widget elementor-widget-html\" data-id=\"3f05412a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<section class=\"wolorin-film-defect-intro-note\">\r\n  <div class=\"wolorin-film-defect-intro-note__inner\">\r\n    <div class=\"wolorin-film-defect-intro-note__card\">\r\n      <p>Wrinkles, fine lines, pressure marks, dust spots, tracking drift, and winding marks are common film converting defects. They may look like small surface problems, but they often point to changes in web tension, static, contact pressure, guiding, slitting, or rewinding.<\/p>\r\n\r\n      <p>Do not try to name the cause too early. First look at where the defect becomes visible. Does it appear before or after a certain section? Does it repeat at a fixed distance? Does it change when speed, tension, pressure, or roll diameter changes?<\/p>\r\n\r\n      <p>These details usually show whether the problem is closer to the film itself, the web path, the process setting, or a contact point on the line. For thin, glossy, coated, protective, or release films, even a small contact change can quickly become a visible defect. If several contact positions may be involved, the broader <a href=\"https:\/\/wolorin.com\/applications\/film-converting-rollers\/\">Film Converting Rollers<\/a> page can help connect the problem with common roller positions on the line.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\r\n\r\n<style>\r\n  .wolorin-film-defect-intro-note,\r\n  .wolorin-film-defect-intro-note * {\r\n    box-sizing: border-box;\r\n    font-family: Inter, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Arial, sans-serif;\r\n    -webkit-font-smoothing: antialiased;\r\n    -moz-osx-font-smoothing: grayscale;\r\n    text-rendering: optimizeLegibility;\r\n  }\r\n\r\n  .wolorin-film-defect-intro-note {\r\n    width: 100%;\r\n    margin: 0 !important;\r\n    padding: 0 !important;\r\n    background: transparent;\r\n  }\r\n\r\n  .wolorin-film-defect-intro-note__inner {\r\n    width: 100%;\r\n    max-width: 1180px;\r\n    margin: 0 auto !important;\r\n    padding: 0 !important;\r\n  }\r\n\r\n  .wolorin-film-defect-intro-note__card {\r\n    position: relative;\r\n    margin: 0 !important;\r\n    padding: 26px 30px 28px 34px;\r\n    background: #f4f5f7;\r\n    border: 1px solid #d8dee8;\r\n    border-radius: 16px;\r\n    cursor: default;\r\n    overflow: hidden;\r\n  }\r\n\r\n  .wolorin-film-defect-intro-note__card::before {\r\n    content: \"\";\r\n    position: absolute;\r\n    left: 0;\r\n    top: 28px;\r\n    width: 4px;\r\n    height: 42px;\r\n    background: #f4b938;\r\n    border-radius: 0 999px 999px 0;\r\n  }\r\n\r\n  .wolorin-film-defect-intro-note__card p {\r\n    max-width: 860px;\r\n    margin: 0 0 18px !important;\r\n    padding: 0 !important;\r\n    color: #405166;\r\n    font-size: 15.8px;\r\n    font-weight: 400;\r\n    line-height: 1.72;\r\n    letter-spacing: 0.002em;\r\n  }\r\n\r\n  .wolorin-film-defect-intro-note__card p:last-child {\r\n    margin-bottom: 0 !important;\r\n  }\r\n\r\n  .wolorin-film-defect-intro-note__card a,\r\n  .wolorin-film-defect-intro-note__card a:link,\r\n  .wolorin-film-defect-intro-note__card a:visited {\r\n    color: #0b5ed7 !important;\r\n    font-weight: 400;\r\n    text-decoration: none !important;\r\n    text-decoration-line: none !important;\r\n    border-bottom: none !important;\r\n    box-shadow: none !important;\r\n    background-image: none !important;\r\n    cursor: pointer;\r\n    transition: color 0.18s ease;\r\n  }\r\n\r\n  .wolorin-film-defect-intro-note__card a::before,\r\n  .wolorin-film-defect-intro-note__card a::after {\r\n    content: none !important;\r\n    display: none !important;\r\n  }\r\n\r\n  .wolorin-film-defect-intro-note__card a:hover,\r\n  .wolorin-film-defect-intro-note__card a:focus,\r\n  .wolorin-film-defect-intro-note__card a:active {\r\n    color: #f4b938 !important;\r\n    outline: none !important;\r\n  }\r\n\r\n  @media (max-width: 767px) {\r\n    .wolorin-film-defect-intro-note__card {\r\n      padding: 22px 20px 24px 22px;\r\n      border-radius: 14px;\r\n    }\r\n\r\n    .wolorin-film-defect-intro-note__card::before {\r\n      top: 22px;\r\n      height: 36px;\r\n    }\r\n\r\n    .wolorin-film-defect-intro-note__card p {\r\n      max-width: none;\r\n      margin-bottom: 16px !important;\r\n      font-size: 14.8px;\r\n      line-height: 1.66;\r\n    }\r\n  }\r\n<\/style>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-103d717 e-con-full e-flex e-con e-child\" data-id=\"103d717\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-61ae7e46 elementor-widget elementor-widget-image\" data-id=\"61ae7e46\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/wolorin.com\/wp-content\/uploads\/2026\/05\/Optical-Film-Roller-Processing-Line.webp\" class=\"attachment-large size-large wp-image-3855\" alt=\"Optical film running through precision rollers on a polarizing film line\" srcset=\"https:\/\/wolorin.com\/wp-content\/uploads\/2026\/05\/Optical-Film-Roller-Processing-Line.webp 800w, https:\/\/wolorin.com\/wp-content\/uploads\/2026\/05\/Optical-Film-Roller-Processing-Line-300x225.webp 300w, https:\/\/wolorin.com\/wp-content\/uploads\/2026\/05\/Optical-Film-Roller-Processing-Line-768x576.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" title=\"Common Film Converting Defects\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ec564cf e-flex e-con-boxed e-con e-parent\" data-id=\"ec564cf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-24baf520 elementor-widget elementor-widget-html\" data-id=\"24baf520\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<section class=\"wolorin-film-defect-cards-v1\">\r\n  <div class=\"wolorin-film-defect-cards-v1__inner\">\r\n    <h2>Quick check: what the defect pattern may tell you<\/h2>\r\n\r\n    <div class=\"wolorin-film-defect-cards-v1__grid\">\r\n      <article class=\"wolorin-film-defect-cards-v1__card\">\r\n        <span><\/span>\r\n        <h3>Wrinkles<\/h3>\r\n        <div class=\"wolorin-film-defect-cards-v1__group\">\r\n          <strong>Common causes on the line<\/strong>\r\n          <p>Uneven tension, poor spreading, unstable web path, edge tension difference, winding pressure change<\/p>\r\n        <\/div>\r\n        <div class=\"wolorin-film-defect-cards-v1__group\">\r\n          <strong>When roller contact should be checked<\/strong>\r\n          <p>Wrinkles appear near spreading, guiding, traction, or rewinding contact<\/p>\r\n        <\/div>\r\n      <\/article>\r\n\r\n      <article class=\"wolorin-film-defect-cards-v1__card\">\r\n        <span><\/span>\r\n        <h3>Surface marks, lines, or pressure impressions<\/h3>\r\n        <div class=\"wolorin-film-defect-cards-v1__group\">\r\n          <strong>Common causes on the line<\/strong>\r\n          <p>Dust, particles, coating streaks, hard contact, local pressure, sensitive film surface<\/p>\r\n        <\/div>\r\n        <div class=\"wolorin-film-defect-cards-v1__group\">\r\n          <strong>When roller contact should be checked<\/strong>\r\n          <p>Marks appear after a contact point, repeat at a fixed distance, or become stronger under pressure<\/p>\r\n        <\/div>\r\n      <\/article>\r\n\r\n      <article class=\"wolorin-film-defect-cards-v1__card\">\r\n        <span><\/span>\r\n        <h3>Slipping around traction points<\/h3>\r\n        <div class=\"wolorin-film-defect-cards-v1__group\">\r\n          <strong>Common causes on the line<\/strong>\r\n          <p>Low grip, speed mismatch, release film surface, contamination, unstable tension<\/p>\r\n        <\/div>\r\n        <div class=\"wolorin-film-defect-cards-v1__group\">\r\n          <strong>When roller contact should be checked<\/strong>\r\n          <p>Slipping stays around one traction or drive position<\/p>\r\n        <\/div>\r\n      <\/article>\r\n\r\n      <article class=\"wolorin-film-defect-cards-v1__card\">\r\n        <span><\/span>\r\n        <h3>Static and dust pickup<\/h3>\r\n        <div class=\"wolorin-film-defect-cards-v1__group\">\r\n          <strong>Common causes on the line<\/strong>\r\n          <p>Dry environment, high-speed separation, poor grounding, particle attraction<\/p>\r\n        <\/div>\r\n        <div class=\"wolorin-film-defect-cards-v1__group\">\r\n          <strong>When roller contact should be checked<\/strong>\r\n          <p>Dust becomes worse after a cleaning or contact position<\/p>\r\n        <\/div>\r\n      <\/article>\r\n\r\n      <article class=\"wolorin-film-defect-cards-v1__card\">\r\n        <span><\/span>\r\n        <h3>Tracking instability<\/h3>\r\n        <div class=\"wolorin-film-defect-cards-v1__group\">\r\n          <strong>Common causes on the line<\/strong>\r\n          <p>Edge guiding issue, uneven tension, roller misalignment, web path change<\/p>\r\n        <\/div>\r\n        <div class=\"wolorin-film-defect-cards-v1__group\">\r\n          <strong>When roller contact should be checked<\/strong>\r\n          <p>Film drifts around the same guide path or after a tension change<\/p>\r\n        <\/div>\r\n      <\/article>\r\n\r\n      <article class=\"wolorin-film-defect-cards-v1__card\">\r\n        <span><\/span>\r\n        <h3>Repeat marks or winding marks<\/h3>\r\n        <div class=\"wolorin-film-defect-cards-v1__group\">\r\n          <strong>Common causes on the line<\/strong>\r\n          <p>Fixed contact point, trapped particles, winding pressure, roll diameter change<\/p>\r\n        <\/div>\r\n        <div class=\"wolorin-film-defect-cards-v1__group\">\r\n          <strong>When roller contact should be checked<\/strong>\r\n          <p>The mark distance is close to the circumference of one roller<\/p>\r\n        <\/div>\r\n      <\/article>\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\r\n\r\n<style>\r\n  .wolorin-film-defect-cards-v1,\r\n  .wolorin-film-defect-cards-v1 * {\r\n    box-sizing: border-box;\r\n    font-family: Inter, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Arial, sans-serif;\r\n    -webkit-font-smoothing: antialiased;\r\n    -moz-osx-font-smoothing: grayscale;\r\n    text-rendering: optimizeLegibility;\r\n  }\r\n\r\n  .wolorin-film-defect-cards-v1 {\r\n    width: 100%;\r\n    margin: 0 !important;\r\n    padding: 0 !important;\r\n    background: #ffffff;\r\n  }\r\n\r\n  .wolorin-film-defect-cards-v1__inner {\r\n    width: 100%;\r\n    max-width: 1180px;\r\n    margin: 0 auto !important;\r\n    padding: 0 !important;\r\n  }\r\n\r\n  .wolorin-film-defect-cards-v1 h2 {\r\n    max-width: 1080px;\r\n    margin: 0 0 26px !important;\r\n    padding: 0 !important;\r\n    color: #142846;\r\n    font-size: 38px;\r\n    font-weight: 700;\r\n    line-height: 1.24;\r\n    letter-spacing: -0.02em;\r\n  }\r\n\r\n  .wolorin-film-defect-cards-v1__grid {\r\n    display: grid;\r\n    grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    gap: 16px;\r\n    margin: 0 !important;\r\n    padding: 0 !important;\r\n  }\r\n\r\n  .wolorin-film-defect-cards-v1__card {\r\n    position: relative;\r\n    margin: 0 !important;\r\n    padding: 22px 24px 24px 28px;\r\n    background: #f4f5f7;\r\n    border: 1px solid #d8dee8;\r\n    border-radius: 14px;\r\n    cursor: default;\r\n    overflow: hidden;\r\n  }\r\n\r\n  .wolorin-film-defect-cards-v1__card span {\r\n    position: absolute;\r\n    left: 0;\r\n    top: 22px;\r\n    width: 4px;\r\n    height: 34px;\r\n    background: #f4b938;\r\n    border-radius: 0 999px 999px 0;\r\n  }\r\n\r\n  .wolorin-film-defect-cards-v1__card h3 {\r\n    margin: 0 0 16px !important;\r\n    padding: 0 !important;\r\n    color: #102a46;\r\n    font-size: 18px;\r\n    font-weight: 600;\r\n    line-height: 1.36;\r\n    letter-spacing: -0.006em;\r\n  }\r\n\r\n  .wolorin-film-defect-cards-v1__group {\r\n    margin: 0 0 14px !important;\r\n    padding: 0 !important;\r\n  }\r\n\r\n  .wolorin-film-defect-cards-v1__group:last-child {\r\n    margin-bottom: 0 !important;\r\n  }\r\n\r\n  .wolorin-film-defect-cards-v1__group strong {\r\n    display: block;\r\n    margin: 0 0 5px !important;\r\n    padding: 0 !important;\r\n    color: #142846;\r\n    font-size: 14.2px;\r\n    font-weight: 600;\r\n    line-height: 1.45;\r\n  }\r\n\r\n  .wolorin-film-defect-cards-v1__group p {\r\n    margin: 0 !important;\r\n    padding: 0 !important;\r\n    color: #405166;\r\n    font-size: 15.2px;\r\n    font-weight: 400;\r\n    line-height: 1.62;\r\n    letter-spacing: 0.002em;\r\n  }\r\n\r\n  @media (max-width: 767px) {\r\n    .wolorin-film-defect-cards-v1 h2 {\r\n      margin-bottom: 22px !important;\r\n      font-size: 27px;\r\n      line-height: 1.3;\r\n    }\r\n\r\n    .wolorin-film-defect-cards-v1__grid {\r\n      grid-template-columns: 1fr;\r\n      gap: 12px;\r\n    }\r\n\r\n    .wolorin-film-defect-cards-v1__card {\r\n      padding: 18px 18px 20px 22px;\r\n      border-radius: 12px;\r\n    }\r\n\r\n    .wolorin-film-defect-cards-v1__card span {\r\n      top: 20px;\r\n      height: 30px;\r\n    }\r\n\r\n    .wolorin-film-defect-cards-v1__card h3 {\r\n      margin-bottom: 14px !important;\r\n      font-size: 16.8px;\r\n      line-height: 1.34;\r\n    }\r\n\r\n    .wolorin-film-defect-cards-v1__group strong {\r\n      font-size: 13.8px;\r\n    }\r\n\r\n    .wolorin-film-defect-cards-v1__group p {\r\n      font-size: 14.6px;\r\n      line-height: 1.6;\r\n    }\r\n  }\r\n<\/style>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5be9f810 e-flex e-con-boxed e-con e-parent\" data-id=\"5be9f810\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-7fd5f9f e-con-full e-flex e-con e-child\" data-id=\"7fd5f9f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-1b4f8cf4 e-con-full e-flex e-con e-child\" data-id=\"1b4f8cf4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-19bced3d e-con-full e-flex e-con e-child\" data-id=\"19bced3d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3a375a46 elementor-widget elementor-widget-icon-box\" data-id=\"3a375a46\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<p class=\"elementor-icon-box-description\">\n\t\t\t\t\t\tIn many film converting problems, the roller is not the first thing to blame. But it becomes important when the defect clearly follows contact.\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5aac2fd e-con-full e-flex e-con e-child\" data-id=\"5aac2fd\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5e1f2ea elementor-widget elementor-widget-icon-box\" data-id=\"5e1f2ea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<p class=\"elementor-icon-box-description\">\n\t\t\t\t\t\tIf a mark repeats at a fixed distance, becomes worse after a contact point, changes with pressure or tension, or stays around one roller position, the roller should be checked more carefully. The issue may be connected to the roller surface, contact pressure, rubber cover hardness, surface finish, contamination, roller runout, or the way the roller supports the film.\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-73e8c5d e-con-full e-flex e-con e-child\" data-id=\"73e8c5d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d42d783 elementor-widget elementor-widget-icon-box\" data-id=\"d42d783\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-box.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-icon-box-wrapper\">\n\n\t\t\t\n\t\t\t\t\t\t<div class=\"elementor-icon-box-content\">\n\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<p class=\"elementor-icon-box-description\">\n\t\t\t\t\t\tThis is especially important for thin, glossy, protective, release, and surface-sensitive films. A small contact issue can quickly become a visible mark, wrinkle, slip, or tracking problem.\t\t\t\t\t<\/p>\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-30559680 elementor-widget elementor-widget-heading\" data-id=\"30559680\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">When the roller becomes a key part of the problem<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-74d3838a e-flex e-con-boxed e-con e-parent\" data-id=\"74d3838a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7ad27db5 elementor-widget elementor-widget-html\" data-id=\"7ad27db5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<section class=\"wolorin-film-defect-faq-v1\">\r\n  <div class=\"wolorin-film-defect-faq-v1__inner\">\r\n    <div class=\"wolorin-film-defect-faq-v1__list\">\r\n\r\n      <details open>\r\n        <summary>Why does film wrinkle during converting or rewinding?<\/summary>\r\n        <div class=\"wolorin-film-defect-faq-v1__answer\">\r\n          <p>Film wrinkles usually come from uneven tension, poor spreading, unstable guiding, or pressure that is not balanced across the web. Thin, smooth, and bright films show these problems faster because they have less room to hide small tension changes.<\/p>\r\n          <p>If wrinkles appear near the spreading section, check the spreading effect first. <a href=\"https:\/\/wolorin.com\/function\/spreader-rollers\/\">Spreader Rollers<\/a> are usually worth checking when wrinkles, poor flattening, or side-to-side web movement appears around that position. If the wrinkle changes with roll diameter, speed, or web tension, <a href=\"https:\/\/wolorin.com\/function\/tension-control-rollers\/\">Tension Control Rollers<\/a> should also be checked.<\/p>\r\n        <\/div>\r\n      <\/details>\r\n\r\n      <details>\r\n        <summary>Why does film show surface marks, lines, or pressure impressions?<\/summary>\r\n        <div class=\"wolorin-film-defect-faq-v1__answer\">\r\n          <p>Film surface marks should be checked from the point where the mark first appears. Some marks come from coating streaks, dust, particles, cooling conditions, adhesive residue, or local pressure. So it is not useful to treat every surface mark as the same problem.<\/p>\r\n          <p>If pressure lines on film appear after a contact point, repeat at a fixed distance, or become stronger when pressure increases, start with the nip or contact area. A dirty surface, embedded particle, local hard spot, uneven grinding, excessive pressure, or slight roller runout can leave visible marks on glossy, protective, release, or surface-sensitive PET films. In low-mark contact positions, <a href=\"https:\/\/wolorin.com\/material\/solid-silicone-rollers\/\">Solid Silicone Rollers<\/a> are often reviewed when release behavior, surface protection, or gentler contact matters.<\/p>\r\n        <\/div>\r\n      <\/details>\r\n\r\n      <details>\r\n        <summary>Why does film slip around traction or drive sections?<\/summary>\r\n        <div class=\"wolorin-film-defect-faq-v1__answer\">\r\n          <p>Slipping near a traction section usually means the film is not moving at the stable speed the line expects. The cause may be surface release, tension change, low contact pressure, contamination, speed mismatch, or worn contact surfaces.<\/p>\r\n          <p>If slipping always happens around one traction or drive position, that contact position needs closer checking. For <a href=\"https:\/\/wolorin.com\/function\/traction-rollers\/\">Traction Rollers<\/a>, the answer is not always to make the surface rougher. Some films need stronger grip. Some films need controlled contact without surface marks. The right direction depends on the film surface, pressure, speed, and roller position.<\/p>\r\n        <\/div>\r\n      <\/details>\r\n\r\n      <details>\r\n        <summary>Why do static and dust build up on film surfaces?<\/summary>\r\n        <div class=\"wolorin-film-defect-faq-v1__answer\">\r\n          <p>Static is a common source of film converting problems, especially during unwinding, separation, slitting, rewinding, and high-speed web movement. Once static builds up, dust, fibers, powder, and small particles are easier to attract. On clear, glossy, protective, release, or electronic-use films, these small particles can quickly become visible surface defects.<\/p>\r\n          <p>The first checks are usually grounding, humidity, ionizing equipment, web path, and cleaning condition. If dust or particle pickup becomes worse after a certain contact or cleaning position, the contact surface and static discharge path should also be checked. In some positions, <a href=\"https:\/\/wolorin.com\/material\/anti-static-rubber-rollers\/\">Anti-Static \/ Conductive Rubber Rollers<\/a> can help reduce static-related handling problems.<\/p>\r\n        <\/div>\r\n      <\/details>\r\n\r\n      <details>\r\n        <summary>Why does film tracking change before slitting or rewinding?<\/summary>\r\n        <div class=\"wolorin-film-defect-faq-v1__answer\">\r\n          <p>Tracking problems often appear before slitting, before rewinding, or after a tension change. The cause may be edge guiding, uneven web tension, roller alignment, winding pull, film thickness variation, or a small path change that becomes larger at higher speed.<\/p>\r\n          <p>Do not check only the edge sensor. Look at the web path before the problem point. A roller that is not parallel, not clean, locally worn, or uneven in surface friction can make the film drift. When tracking instability stays near one section, <a href=\"https:\/\/wolorin.com\/function\/guide-rollers\/\">Guide Rollers<\/a> are usually reviewed together with the tension path.<\/p>\r\n        <\/div>\r\n      <\/details>\r\n\r\n      <details>\r\n        <summary>Why do repeat marks or winding contact marks appear after rewinding?<\/summary>\r\n        <div class=\"wolorin-film-defect-faq-v1__answer\">\r\n          <p>Repeat marks need one extra check: distance. If the mark repeats at a distance close to the circumference of one roller, that roller becomes an important clue. If the mark changes with winding pressure, roll diameter, or winding contact pressure, start with the rewinding contact area.<\/p>\r\n          <p>These marks can come from trapped particles, pressure that is too high for the film, a local hard point, surface damage, roller runout, or an uneven winding contact roller. Sometimes the mark is not obvious during running, but becomes visible after the film is wound and layer pressure builds up.<\/p>\r\n        <\/div>\r\n      <\/details>\r\n\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\r\n\r\n<style>\r\n  .wolorin-film-defect-faq-v1,\r\n  .wolorin-film-defect-faq-v1 * {\r\n    box-sizing: border-box;\r\n    font-family: Inter, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Arial, sans-serif;\r\n    -webkit-font-smoothing: antialiased;\r\n    -moz-osx-font-smoothing: grayscale;\r\n    text-rendering: optimizeLegibility;\r\n  }\r\n\r\n  .wolorin-film-defect-faq-v1 {\r\n    width: 100%;\r\n    margin: 0 !important;\r\n    padding: 0 !important;\r\n    background: #ffffff;\r\n  }\r\n\r\n  .wolorin-film-defect-faq-v1__inner {\r\n    width: 100%;\r\n    max-width: 1180px;\r\n    margin: 0 auto !important;\r\n    padding: 0 !important;\r\n  }\r\n\r\n  .wolorin-film-defect-faq-v1__list {\r\n    display: grid;\r\n    gap: 14px;\r\n    margin: 0 !important;\r\n   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!important;\r\n    font-weight: 400;\r\n    text-decoration: none !important;\r\n    text-decoration-line: none !important;\r\n    border-bottom: none !important;\r\n    box-shadow: none !important;\r\n    background-image: none !important;\r\n    cursor: pointer;\r\n    transition: color 0.18s ease;\r\n  }\r\n\r\n  .wolorin-film-defect-faq-v1 a::before,\r\n  .wolorin-film-defect-faq-v1 a::after {\r\n    content: none !important;\r\n    display: none !important;\r\n  }\r\n\r\n  .wolorin-film-defect-faq-v1 a:hover,\r\n  .wolorin-film-defect-faq-v1 a:focus,\r\n  .wolorin-film-defect-faq-v1 a:active {\r\n    color: #f4b938 !important;\r\n    outline: none !important;\r\n  }\r\n\r\n  @media (max-width: 767px) {\r\n    .wolorin-film-defect-faq-v1__list {\r\n      gap: 12px;\r\n    }\r\n\r\n    .wolorin-film-defect-faq-v1 details {\r\n      border-radius: 12px;\r\n    }\r\n\r\n    .wolorin-film-defect-faq-v1 details::before {\r\n      top: 18px;\r\n      height: 30px;\r\n    }\r\n\r\n    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class=\"elementor-element elementor-element-6a308fc elementor-widget elementor-widget-html\" data-id=\"6a308fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<section class=\"wolorin-film-defect-related-pages-v1\">\r\n  <div class=\"wolorin-film-defect-related-pages-v1__inner\">\r\n    <div class=\"wolorin-film-defect-related-pages-v1__head\">\r\n      <h2>Related Pages<\/h2>\r\n    <\/div>\r\n\r\n    <div class=\"wolorin-film-defect-related-pages-v1__grid\">\r\n      <a class=\"wolorin-film-defect-related-pages-v1__card\" href=\"https:\/\/wolorin.com\/applications\/film-converting-rollers\/\">\r\n        <span><\/span>\r\n        <strong>Film Converting Rollers<\/strong>\r\n        <p>For roller requirements across film converting, slitting, rewinding, guiding, traction, static control, and surface-sensitive contact.<\/p>\r\n      <\/a>\r\n\r\n      <a class=\"wolorin-film-defect-related-pages-v1__card\" href=\"https:\/\/wolorin.com\/function\/traction-rollers\/\">\r\n        <span><\/span>\r\n        <strong>Traction Rollers<\/strong>\r\n        <p>For slipping, unstable grip, speed synchronization, and film movement problems.<\/p>\r\n      <\/a>\r\n\r\n      <a class=\"wolorin-film-defect-related-pages-v1__card\" href=\"https:\/\/wolorin.com\/function\/guide-rollers\/\">\r\n        <span><\/span>\r\n        <strong>Guide Rollers<\/strong>\r\n        <p>For tracking instability, web path control, edge movement, and surface support.<\/p>\r\n      <\/a>\r\n\r\n      <a class=\"wolorin-film-defect-related-pages-v1__card\" href=\"https:\/\/wolorin.com\/function\/tension-control-rollers\/\">\r\n        <span><\/span>\r\n        <strong>Tension Control Rollers<\/strong>\r\n        <p>For tension fluctuation, roll diameter changes, web instability, and rewinding behavior.<\/p>\r\n      <\/a>\r\n\r\n      <a class=\"wolorin-film-defect-related-pages-v1__card\" href=\"https:\/\/wolorin.com\/function\/spreader-rollers\/\">\r\n        <span><\/span>\r\n        <strong>Spreader Rollers<\/strong>\r\n        <p>For wrinkles, spreading, web flattening, and lateral instability.<\/p>\r\n      <\/a>\r\n\r\n      <a class=\"wolorin-film-defect-related-pages-v1__card\" href=\"https:\/\/wolorin.com\/material\/anti-static-rubber-rollers\/\">\r\n        <span><\/span>\r\n        <strong>Anti-Static \/ Conductive Rubber Rollers<\/strong>\r\n        <p>For static control, dust pickup, particle contamination, and sensitive film handling.<\/p>\r\n      <\/a>\r\n\r\n      <a class=\"wolorin-film-defect-related-pages-v1__card wolorin-film-defect-related-pages-v1__card--wide\" href=\"https:\/\/wolorin.com\/material\/solid-silicone-rollers\/\">\r\n        <span><\/span>\r\n        <strong>Solid Silicone Rollers<\/strong>\r\n        <p>For release behavior, surface protection, heat contact, and low-mark roller contact.<\/p>\r\n      <\/a>\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\r\n\r\n<style>\r\n  .wolorin-film-defect-related-pages-v1,\r\n  .wolorin-film-defect-related-pages-v1 * {\r\n    box-sizing: border-box;\r\n    font-family: Inter, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Arial, sans-serif;\r\n    -webkit-font-smoothing: antialiased;\r\n    -moz-osx-font-smoothing: grayscale;\r\n    text-rendering: optimizeLegibility;\r\n  }\r\n\r\n  .wolorin-film-defect-related-pages-v1 {\r\n    width: 100%;\r\n    margin: 0 !important;\r\n    padding: 0 !important;\r\n    background: #ffffff;\r\n  }\r\n\r\n  .wolorin-film-defect-related-pages-v1__inner {\r\n    width: 100%;\r\n    max-width: 1180px;\r\n    margin: 0 auto !important;\r\n    padding: 0 !important;\r\n  }\r\n\r\n  .wolorin-film-defect-related-pages-v1__head {\r\n    margin: 0 0 26px !important;\r\n    padding: 0 !important;\r\n  }\r\n\r\n  .wolorin-film-defect-related-pages-v1__head h2 {\r\n    margin: 0 !important;\r\n    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box-shadow: none !important;\r\n    background-image: none !important;\r\n    cursor: pointer;\r\n    transform: translateY(0);\r\n    overflow: hidden;\r\n    transition:\r\n      background-color 0.18s ease,\r\n      border-color 0.18s ease,\r\n      transform 0.18s ease,\r\n      box-shadow 0.18s ease;\r\n  }\r\n\r\n  .wolorin-film-defect-related-pages-v1__card::before,\r\n  .wolorin-film-defect-related-pages-v1__card::after {\r\n    content: none !important;\r\n    display: none !important;\r\n  }\r\n\r\n  .wolorin-film-defect-related-pages-v1__card span {\r\n    position: absolute;\r\n    left: 0;\r\n    top: 22px;\r\n    width: 4px;\r\n    height: 34px;\r\n    background: #f4b938;\r\n    border-radius: 0 999px 999px 0;\r\n  }\r\n\r\n  .wolorin-film-defect-related-pages-v1__card strong {\r\n    display: block;\r\n    margin: 0 0 8px !important;\r\n    padding: 0 !important;\r\n    color: #142846;\r\n    font-size: 18px;\r\n    font-weight: 600;\r\n    line-height: 1.36;\r\n    letter-spacing: -0.006em;\r\n    transition: color 0.18s ease;\r\n  }\r\n\r\n  .wolorin-film-defect-related-pages-v1__card p {\r\n    margin: 0 !important;\r\n    padding: 0 !important;\r\n    color: #405166;\r\n    font-size: 15.2px;\r\n    font-weight: 400;\r\n    line-height: 1.62;\r\n    letter-spacing: 0.002em;\r\n  }\r\n\r\n  .wolorin-film-defect-related-pages-v1__card--wide {\r\n    grid-column: 1 \/ -1;\r\n    min-height: 110px;\r\n  }\r\n\r\n  .wolorin-film-defect-related-pages-v1__card:hover,\r\n  .wolorin-film-defect-related-pages-v1__card:focus,\r\n  .wolorin-film-defect-related-pages-v1__card:active {\r\n    background: #ffffff !important;\r\n    border-color: #f4b938 !important;\r\n    border-bottom-color: #f4b938 !important;\r\n    transform: translateY(-2px);\r\n    box-shadow: 0 8px 18px rgba(20, 40, 70, 0.08) !important;\r\n    outline: none !important;\r\n  }\r\n\r\n  .wolorin-film-defect-related-pages-v1__card:hover strong,\r\n  .wolorin-film-defect-related-pages-v1__card:focus strong,\r\n  .wolorin-film-defect-related-pages-v1__card:active strong {\r\n    color: #f4b938 !important;\r\n  }\r\n\r\n  @media (prefers-reduced-motion: reduce) {\r\n    .wolorin-film-defect-related-pages-v1__card,\r\n    .wolorin-film-defect-related-pages-v1__card:hover,\r\n    .wolorin-film-defect-related-pages-v1__card:focus,\r\n    .wolorin-film-defect-related-pages-v1__card:active {\r\n      transition: none !important;\r\n      transform: none !important;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 767px) {\r\n    .wolorin-film-defect-related-pages-v1__head {\r\n      margin-bottom: 22px !important;\r\n    }\r\n\r\n    .wolorin-film-defect-related-pages-v1__head h2 {\r\n      font-size: 27px;\r\n      line-height: 1.3;\r\n    }\r\n\r\n    .wolorin-film-defect-related-pages-v1__grid {\r\n      grid-template-columns: 1fr;\r\n      gap: 12px;\r\n    }\r\n\r\n    .wolorin-film-defect-related-pages-v1__card,\r\n    .wolorin-film-defect-related-pages-v1__card:link,\r\n    .wolorin-film-defect-related-pages-v1__card:visited,\r\n    .wolorin-film-defect-related-pages-v1__card--wide {\r\n      grid-column: auto;\r\n      min-height: auto;\r\n      padding: 18px 18px 20px 22px;\r\n      border-radius: 12px;\r\n    }\r\n\r\n    .wolorin-film-defect-related-pages-v1__card span {\r\n      top: 20px;\r\n      height: 30px;\r\n    }\r\n\r\n    .wolorin-film-defect-related-pages-v1__card strong {\r\n      font-size: 16.4px;\r\n      line-height: 1.34;\r\n    }\r\n\r\n    .wolorin-film-defect-related-pages-v1__card p {\r\n      font-size: 14.6px;\r\n      line-height: 1.6;\r\n    }\r\n  }\r\n<\/style>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-17348c8 e-flex e-con-boxed e-con e-parent\" data-id=\"17348c8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-9a59a2 e-con-full e-flex e-con e-child\" data-id=\"9a59a2\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t<div class=\"elementor-element elementor-element-1a57d551 e-con-full e-flex e-con e-child\" data-id=\"1a57d551\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-704bf385 elementor-widget elementor-widget-heading\" data-id=\"704bf385\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How Wolorin reviews roller-related film converting problems<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-335d42e8 elementor-widget elementor-widget-text-editor\" data-id=\"335d42e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Film converting problems are easier to judge when the defect, film type, roller position, and contact condition are looked at together. Wolorin reviews custom roller projects based on the actual working position, film surface, pressure, tension, speed, contact media, and the problem already seen on the line.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-52340e6 e-con-full e-flex e-con e-child\" data-id=\"52340e6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-460bdc8 e-grid e-con-full e-con e-child\" data-id=\"460bdc8\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-c5f92fe e-con-full e-flex e-con e-child\" data-id=\"c5f92fe\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d1d59b0 elementor-widget elementor-widget-html\" data-id=\"d1d59b0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<section class=\"wolorin-broader-project-support-v2\">\r\n  <div class=\"wolorin-broader-project-support-v2__inner\">\r\n    <p class=\"wolorin-broader-project-support-v2__intro\">For broader project support, you can also view:<\/p>\r\n\r\n    <div class=\"wolorin-broader-project-support-v2__list\">\r\n      <a class=\"wolorin-broader-project-support-v2__item\" href=\"https:\/\/wolorin.com\/services\/\">\r\n        <span><\/span>\r\n        <div>\r\n          <strong>Services<\/strong>\r\n          <p>Custom roller manufacturing, replacement, and project review.<\/p>\r\n        <\/div>\r\n      <\/a>\r\n\r\n      <a class=\"wolorin-broader-project-support-v2__item\" href=\"https:\/\/wolorin.com\/company\/quality-control\/\">\r\n        <span><\/span>\r\n        <div>\r\n          <strong>Quality Control<\/strong>\r\n          <p>Inspection, measurement, and shipment confirmation.<\/p>\r\n        <\/div>\r\n      <\/a>\r\n\r\n      <a class=\"wolorin-broader-project-support-v2__item\" href=\"https:\/\/wolorin.com\/company\/\">\r\n        <span><\/span>\r\n        <div>\r\n          <strong>About Wolorin<\/strong>\r\n          <p>Company background and roller manufacturing experience.<\/p>\r\n        <\/div>\r\n      <\/a>\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\r\n\r\n<style>\r\n  .wolorin-broader-project-support-v2,\r\n  .wolorin-broader-project-support-v2 * {\r\n    box-sizing: border-box;\r\n    font-family: Inter, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Arial, sans-serif;\r\n    -webkit-font-smoothing: antialiased;\r\n    -moz-osx-font-smoothing: grayscale;\r\n    text-rendering: optimizeLegibility;\r\n  }\r\n\r\n  .wolorin-broader-project-support-v2 {\r\n    width: 100%;\r\n    margin: 0 !important;\r\n    padding: 0 !important;\r\n    background: #ffffff;\r\n  }\r\n\r\n  .wolorin-broader-project-support-v2__inner {\r\n    width: 100%;\r\n    max-width: 1180px;\r\n    margin: 0 auto !important;\r\n    padding: 0 !important;\r\n  }\r\n\r\n  .wolorin-broader-project-support-v2__intro {\r\n    margin: 0 0 16px !important;\r\n    padding: 0 !important;\r\n    color: #405166;\r\n    font-size: 15.8px;\r\n    font-weight: 400;\r\n    line-height: 1.72;\r\n    letter-spacing: 0.002em;\r\n  }\r\n\r\n  .wolorin-broader-project-support-v2__list {\r\n    display: grid;\r\n    gap: 12px;\r\n    margin: 0 !important;\r\n    padding: 0 !important;\r\n  }\r\n\r\n  .wolorin-broader-project-support-v2__item,\r\n  .wolorin-broader-project-support-v2__item:link,\r\n  .wolorin-broader-project-support-v2__item:visited {\r\n    position: relative;\r\n    display: block !important;\r\n    width: 100%;\r\n    margin: 0 !important;\r\n    padding: 18px 24px 18px 28px;\r\n    background: #f4f5f7 !important;\r\n    border: 1px solid #d8dee8 !important;\r\n    border-bottom: 1px solid #d8dee8 !important;\r\n    border-radius: 12px;\r\n    color: #405166 !important;\r\n    text-decoration: none !important;\r\n    text-decoration-line: none !important;\r\n    box-shadow: none !important;\r\n    background-image: none !important;\r\n    cursor: pointer;\r\n    overflow: hidden;\r\n    transform: translateY(0);\r\n    transition:\r\n      background-color 0.18s ease,\r\n      border-color 0.18s ease,\r\n      transform 0.18s ease,\r\n      box-shadow 0.18s ease;\r\n  }\r\n\r\n  .wolorin-broader-project-support-v2__item::before,\r\n  .wolorin-broader-project-support-v2__item::after {\r\n    content: none !important;\r\n    display: none !important;\r\n  }\r\n\r\n  .wolorin-broader-project-support-v2__item span {\r\n    position: absolute;\r\n    left: 0;\r\n    top: 18px;\r\n    width: 4px;\r\n    height: 30px;\r\n    background: #f4b938;\r\n    border-radius: 0 999px 999px 0;\r\n  }\r\n\r\n  .wolorin-broader-project-support-v2__item strong {\r\n    display: block;\r\n    margin: 0 0 5px !important;\r\n    padding: 0 !important;\r\n    color: #142846;\r\n    font-size: 16.6px;\r\n    font-weight: 600;\r\n    line-height: 1.36;\r\n    letter-spacing: -0.006em;\r\n    transition: color 0.18s ease;\r\n  }\r\n\r\n  .wolorin-broader-project-support-v2__item p {\r\n    margin: 0 !important;\r\n    padding: 0 !important;\r\n    color: #405166;\r\n    font-size: 15.2px;\r\n    font-weight: 400;\r\n    line-height: 1.62;\r\n    letter-spacing: 0.002em;\r\n  }\r\n\r\n  .wolorin-broader-project-support-v2__item:hover,\r\n  .wolorin-broader-project-support-v2__item:focus,\r\n  .wolorin-broader-project-support-v2__item:active {\r\n    background: #ffffff !important;\r\n    border-color: #f4b938 !important;\r\n    border-bottom-color: #f4b938 !important;\r\n    transform: translateY(-2px);\r\n    box-shadow: 0 8px 18px rgba(20, 40, 70, 0.08) !important;\r\n    outline: none !important;\r\n  }\r\n\r\n  .wolorin-broader-project-support-v2__item:hover strong,\r\n  .wolorin-broader-project-support-v2__item:focus strong,\r\n  .wolorin-broader-project-support-v2__item:active strong {\r\n    color: #f4b938 !important;\r\n  }\r\n\r\n  @media (prefers-reduced-motion: reduce) {\r\n    .wolorin-broader-project-support-v2__item,\r\n    .wolorin-broader-project-support-v2__item:hover,\r\n    .wolorin-broader-project-support-v2__item:focus,\r\n    .wolorin-broader-project-support-v2__item:active {\r\n      transition: none !important;\r\n      transform: none !important;\r\n    }\r\n  }\r\n\r\n  @media (max-width: 767px) {\r\n    .wolorin-broader-project-support-v2__intro {\r\n      margin-bottom: 14px !important;\r\n      font-size: 14.8px;\r\n      line-height: 1.66;\r\n    }\r\n\r\n    .wolorin-broader-project-support-v2__list {\r\n      gap: 10px;\r\n    }\r\n\r\n    .wolorin-broader-project-support-v2__item,\r\n    .wolorin-broader-project-support-v2__item:link,\r\n    .wolorin-broader-project-support-v2__item:visited {\r\n      padding: 16px 18px 16px 22px;\r\n      border-radius: 10px;\r\n    }\r\n\r\n    .wolorin-broader-project-support-v2__item span {\r\n      top: 16px;\r\n      height: 28px;\r\n    }\r\n\r\n    .wolorin-broader-project-support-v2__item strong {\r\n      font-size: 15.8px;\r\n      line-height: 1.34;\r\n    }\r\n\r\n    .wolorin-broader-project-support-v2__item p {\r\n      font-size: 14.6px;\r\n      line-height: 1.6;\r\n    }\r\n  }\r\n<\/style>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8d553c4 elementor-widget elementor-widget-image\" data-id=\"8d553c4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/wolorin.com\/wp-content\/uploads\/2026\/05\/Plastic-Film-Rewinding-Roller-Line.webp\" class=\"attachment-large size-large wp-image-3874\" alt=\"Clear plastic film being rewound on an industrial roller line\" srcset=\"https:\/\/wolorin.com\/wp-content\/uploads\/2026\/05\/Plastic-Film-Rewinding-Roller-Line.webp 800w, https:\/\/wolorin.com\/wp-content\/uploads\/2026\/05\/Plastic-Film-Rewinding-Roller-Line-300x225.webp 300w, https:\/\/wolorin.com\/wp-content\/uploads\/2026\/05\/Plastic-Film-Rewinding-Roller-Line-768x576.webp 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" title=\"Common Film Converting Defects\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-78a5e30e e-flex e-con-boxed e-con e-parent\" data-id=\"78a5e30e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7563ea16 elementor-widget elementor-widget-html\" data-id=\"7563ea16\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<section class=\"wolorin-film-initial-review-v2\">\r\n  <div class=\"wolorin-film-initial-review-v2__inner\">\r\n    <div class=\"wolorin-film-initial-review-v2__head\">\r\n      <h2>What to send for an initial review<\/h2>\r\n\r\n      <p>If you already have drawings, dimensions, samples, or clear specifications, you can send them directly. Wolorin can use them for customization, quotation, or production confirmation.<\/p>\r\n\r\n      <p>If the information is not complete, you can still start with what you have. For film converting defects, the most useful information is usually simple:<\/p>\r\n    <\/div>\r\n\r\n    <div class=\"wolorin-film-initial-review-v2__list\">\r\n      <div class=\"wolorin-film-initial-review-v2__item\">photos or videos of the defect;<\/div>\r\n      <div class=\"wolorin-film-initial-review-v2__item\">old roller photos, especially the roller surface and shaft ends;<\/div>\r\n      <div class=\"wolorin-film-initial-review-v2__item\">roller position on the line;<\/div>\r\n      <div class=\"wolorin-film-initial-review-v2__item\">film type, such as BOPP, PET, PE, protective film, or release film;<\/div>\r\n      <div class=\"wolorin-film-initial-review-v2__item\">roller diameter, face length, shaft details, and cover thickness if available;<\/div>\r\n      <div class=\"wolorin-film-initial-review-v2__item\">current hardness or material, if known;<\/div>\r\n      <div class=\"wolorin-film-initial-review-v2__item\">whether the problem is wrinkles, surface marks, slipping, static, tracking, or winding marks;<\/div>\r\n      <div class=\"wolorin-film-initial-review-v2__item\">whether the defect changes with speed, tension, pressure, or roll diameter;<\/div>\r\n      <div class=\"wolorin-film-initial-review-v2__item wolorin-film-initial-review-v2__item--wide\">any cleaning liquid, adhesive, coating, powder, or other contact media near the roller.<\/div>\r\n    <\/div>\r\n\r\n    <div class=\"wolorin-film-initial-review-v2__note\">\r\n      <p>You do not need a complete technical file before contacting us. Clear photos, basic dimensions, the roller position, and the current problem are often enough to start the first review.<\/p>\r\n      <p>If you are not sure whether the problem comes from the film, the process, or the roller contact point, you can send the defect photos and the roller position first. We can help you narrow down what should be checked next.<\/p>\r\n    <\/div>\r\n\r\n    <div class=\"wolorin-film-initial-review-v2__actions\">\r\n      <a class=\"wolorin-film-initial-review-v2__btn wolorin-film-initial-review-v2__btn--primary\" href=\"https:\/\/wolorin.com\/contact-us\/\">Contact Us<\/a>\r\n      <a class=\"wolorin-film-initial-review-v2__btn wolorin-film-initial-review-v2__btn--secondary\" href=\"https:\/\/wolorin.com\/send-drawings\/\">Send Drawings or Roller Details<\/a>\r\n    <\/div>\r\n  <\/div>\r\n<\/section>\r\n\r\n<style>\r\n  .wolorin-film-initial-review-v2,\r\n  .wolorin-film-initial-review-v2 * {\r\n    box-sizing: border-box;\r\n    font-family: Inter, -apple-system, BlinkMacSystemFont, \"Segoe UI\", Arial, sans-serif;\r\n    -webkit-font-smoothing: antialiased;\r\n    -moz-osx-font-smoothing: grayscale;\r\n    text-rendering: optimizeLegibility;\r\n  }\r\n\r\n  .wolorin-film-initial-review-v2 {\r\n    width: 100%;\r\n    margin: 0 !important;\r\n    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They may look like small surface problems, but they often point to changes in web tension, static, contact pressure, guiding, slitting, or rewinding. Do not try to name the cause too early. First look at where the defect becomes visible. Does it appear before or after a certain section? Does it repeat at a fixed distance? Does it change when speed, tension, pressure, or roll diameter changes? These details usually show whether the problem is closer to the film itself, the web path, the process setting, or a contact [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3757","post","type-post","status-publish","format-standard","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/wolorin.com\/ja\/wp-json\/wp\/v2\/posts\/3757","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wolorin.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wolorin.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wolorin.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wolorin.com\/ja\/wp-json\/wp\/v2\/comments?post=3757"}],"version-history":[{"count":13,"href":"https:\/\/wolorin.com\/ja\/wp-json\/wp\/v2\/posts\/3757\/revisions"}],"predecessor-version":[{"id":3897,"href":"https:\/\/wolorin.com\/ja\/wp-json\/wp\/v2\/posts\/3757\/revisions\/3897"}],"wp:attachment":[{"href":"https:\/\/wolorin.com\/ja\/wp-json\/wp\/v2\/media?parent=3757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wolorin.com\/ja\/wp-json\/wp\/v2\/categories?post=3757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wolorin.com\/ja\/wp-json\/wp\/v2\/tags?post=3757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}