{"id":5644,"date":"2026-09-28T10:01:58","date_gmt":"2026-09-28T10:01:58","guid":{"rendered":"https:\/\/wolorin.com\/?p=5644"},"modified":"2026-09-28T10:01:58","modified_gmt":"2026-09-28T10:01:58","slug":"glass-washing-roller-marks","status":"publish","type":"post","link":"https:\/\/wolorin.com\/th\/blog\/glass-washing-roller-marks\/","title":{"rendered":"\u0e23\u0e2d\u0e22\u0e1a\u0e19\u0e01\u0e23\u0e30\u0e08\u0e01\u0e2b\u0e25\u0e31\u0e07\u0e01\u0e32\u0e23\u0e25\u0e49\u0e32\u0e07: \u0e04\u0e27\u0e23\u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e25\u0e39\u0e01\u0e01\u0e25\u0e34\u0e49\u0e07\u0e2a\u0e32\u0e22\u0e1e\u0e32\u0e19\u0e25\u0e33\u0e40\u0e25\u0e35\u0e22\u0e07\u0e40\u0e21\u0e37\u0e48\u0e2d\u0e43\u0e14"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"5644\" class=\"elementor elementor-5644\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ac0894c e-flex e-con-boxed e-con e-parent\" data-id=\"ac0894c\" 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-cf35167 elementor-widget elementor-widget-html\" data-id=\"cf35167\" 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<div class=\"wlr-post wlr-post-part-1\">\r\n  <div class=\"wlr-glass-marks-hero\">\r\n\r\n    <h1 class=\"wlr-glass-marks-hero__title\">\r\n      \u0e23\u0e2d\u0e22\u0e1a\u0e19\u0e01\u0e23\u0e30\u0e08\u0e01\u0e2b\u0e25\u0e31\u0e07\u0e01\u0e32\u0e23\u0e25\u0e49\u0e32\u0e07: \u0e04\u0e27\u0e23\u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e25\u0e39\u0e01\u0e01\u0e25\u0e34\u0e49\u0e07\u0e2a\u0e32\u0e22\u0e1e\u0e32\u0e19\u0e25\u0e33\u0e40\u0e25\u0e35\u0e22\u0e07\u0e40\u0e21\u0e37\u0e48\u0e2d\u0e43\u0e14\r\n    <\/h1>\r\n\r\n    <div class=\"wlr-glass-marks-hero__body\">\r\n\r\n      <div class=\"wlr-glass-marks-hero__copy\">\r\n        <p>Marks on glass after washing may appear as pale water rings, straight scratches, oily smudges, or evenly spaced impressions. Start with the appearance of the mark, then find the first stage where it shows up.<\/p>\r\n\r\n        <p>Water rings suggest rinse residue or drying problems. Scratches call for a check of incoming glass and hard-particle contact. Smudges may come from handling residue or dirty contact surfaces. Evenly spaced marks make a rotating roll worth checking, especially when the distance is close to its circumference.<\/p>\r\n\r\n        <p>Note which face is affected and whether the marks run along or across the conveying direction. These details help narrow the inspection before deciding whether a conveyor roll needs replacing.<\/p>\r\n      <\/div>\r\n\r\n      <div class=\"wlr-glass-marks-hero__media\">\r\n        <img decoding=\"async\"\r\n          src=\"https:\/\/wolorin.com\/wp-content\/uploads\/2026\/09\/Glass-Processing-Conveyor-Roller-System.webp\"\r\n          alt=\"Industrial rollers in a transfer and coating process\" title=\"\u0e23\u0e2d\u0e22\u0e1a\u0e19\u0e01\u0e23\u0e30\u0e08\u0e01\u0e2b\u0e25\u0e31\u0e07\u0e01\u0e32\u0e23\u0e25\u0e49\u0e32\u0e07: \u0e04\u0e27\u0e23\u0e15\u0e23\u0e27\u0e08\u0e2a\u0e2d\u0e1a\u0e25\u0e39\u0e01\u0e01\u0e25\u0e34\u0e49\u0e07\u0e2a\u0e32\u0e22\u0e1e\u0e32\u0e19\u0e25\u0e33\u0e40\u0e25\u0e35\u0e22\u0e07\u0e40\u0e21\u0e37\u0e48\u0e2d\u0e43\u0e14\">\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n  <\/div>\r\n<\/div>\r\n\r\n<style>\r\n.wlr-post-part-1,\r\n.wlr-post-part-1 * {\r\n  box-sizing: border-box;\r\n}\r\n\r\n.wlr-post-part-1 {\r\n  width: 100%;\r\n  max-width: 1120px;\r\n\r\n  margin: 0 auto 24px !important;\r\n  padding: 0 !important;\r\n\r\n  color: #263b50;\r\n\r\n  font-family:\r\n    Inter,\r\n    -apple-system,\r\n    BlinkMacSystemFont,\r\n    \"Segoe UI\",\r\n    Arial,\r\n    sans-serif;\r\n}\r\n\r\n\/* =========================================================\r\n   HERO CARD\r\n========================================================= *\/\r\n\r\n.wlr-post-part-1 .wlr-glass-marks-hero {\r\n  display: block !important;\r\n\r\n  width: 100% !important;\r\n\r\n  margin: 0 !important;\r\n  padding: 42px 46px !important;\r\n\r\n  background: #f4f8fb !important;\r\n\r\n  border: 1px solid #e3eaf0 !important;\r\n  border-radius: 20px !important;\r\n\r\n  box-shadow: 0 12px 32px rgba(17, 52, 82, .055) !important;\r\n}\r\n\r\n\/* =========================================================\r\n   H1 \u2014 FULL WIDTH\r\n========================================================= *\/\r\n\r\n.wlr-post-part-1 .wlr-glass-marks-hero__title {\r\n  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COPY\r\n========================================================= *\/\r\n\r\n.wlr-post-part-1 .wlr-glass-marks-hero__copy {\r\n  display: block !important;\r\n\r\n  width: 100% !important;\r\n  min-width: 0 !important;\r\n\r\n  margin: 0 !important;\r\n  padding: 0 !important;\r\n}\r\n\r\n.wlr-post-part-1 .wlr-glass-marks-hero__copy p {\r\n  display: block !important;\r\n\r\n  margin: 0 0 26px !important;\r\n  padding: 0 !important;\r\n\r\n  color: #263b50 !important;\r\n\r\n  font-size: 16px !important;\r\n  font-weight: 400 !important;\r\n  line-height: 1.72 !important;\r\n}\r\n\r\n.wlr-post-part-1 .wlr-glass-marks-hero__copy p:first-child {\r\n  margin-top: 0 !important;\r\n}\r\n\r\n.wlr-post-part-1 .wlr-glass-marks-hero__copy p:last-child {\r\n  margin-bottom: 0 !important;\r\n}\r\n\r\n\/* =========================================================\r\n   RIGHT IMAGE\r\n   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!important;\r\n\r\n  border: 0 !important;\r\n  outline: 0 !important;\r\n  box-shadow: none !important;\r\n\r\n  border-radius: 15px !important;\r\n\r\n  vertical-align: top !important;\r\n}\r\n\r\n\/* =========================================================\r\n   MOBILE\r\n========================================================= *\/\r\n\r\n@media (max-width: 767px) {\r\n\r\n  .wlr-post-part-1 {\r\n    margin-bottom: 18px !important;\r\n  }\r\n\r\n  .wlr-post-part-1 .wlr-glass-marks-hero {\r\n    padding: 25px 20px !important;\r\n\r\n    border-radius: 15px !important;\r\n  }\r\n\r\n  .wlr-post-part-1 .wlr-glass-marks-hero__title {\r\n    margin-bottom: 26px !important;\r\n\r\n    font-size: 30px !important;\r\n  }\r\n\r\n  .wlr-post-part-1 .wlr-glass-marks-hero__body {\r\n    grid-template-columns: 1fr !important;\r\n\r\n    gap: 24px !important;\r\n  }\r\n\r\n  .wlr-post-part-1 .wlr-glass-marks-hero__copy p {\r\n    margin-bottom: 22px !important;\r\n\r\n    font-size: 15.5px !important;\r\n    line-height: 1.72 !important;\r\n  }\r\n\r\n  .wlr-post-part-1 .wlr-glass-marks-hero__media {\r\n    margin-top: 0 !important;\r\n  }\r\n\r\n  .wlr-post-part-1 .wlr-glass-marks-hero__media img {\r\n    width: 100% !important;\r\n    height: auto !important;\r\n    min-height: 0 !important;\r\n\r\n    aspect-ratio: 4 \/ 3 !important;\r\n\r\n    object-fit: cover !important;\r\n  }\r\n}\r\n<\/style>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f7c34a elementor-widget elementor-widget-html\" data-id=\"7f7c34a\" 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<div class=\"wlr-post wlr-post-part-2\"><div class=\"wl-wrap wl-section\"><h2>1. Start with the Mark on the Glass<\/h2><p>A mark seen at the washer exit may have several possible origins. Its appearance gives maintenance staff a practical starting point.<\/p><h3>What Should You Check First?<\/h3><div class=\"wl-table\"><table><thead><tr><th>Mark appearance<\/th><th>First area to check<\/th><th>Evidence pointing to a roll<\/th><\/tr><\/thead><tbody><tr><td>Water spots or cloudy streaks<\/td><td>Final rinse and drying<\/td><td>A streak follows a damaged drying roll\u2019s contact path.<\/td><\/tr><tr><td>Straight scratches<\/td><td>Incoming glass and earlier handling<\/td><td>A new scratch follows a contact path where hard particles are found.<\/td><\/tr><tr><td>Smudges or oily marks<\/td><td>Handling and drying sections<\/td><td>A matching deposit is found on the roll surface.<\/td><\/tr><tr><td>Evenly spaced marks<\/td><td>Drying and unloading rolls<\/td><td>Spacing is close to a roll\u2019s circumference, with corresponding dirt or damage.<\/td><\/tr><\/tbody><\/table><\/div><p>A straight scratch that remains after appropriate cleaning may be permanent surface damage. If the glass is coated, follow the coating supplier\u2019s cleaning instructions rather than scraping the mark to test it.<\/p><\/div><div class=\"wl-wrap wl-section\"><h2>2. Find Where the Mark First Appears<\/h2><p>The washer exit is often where a defect is discovered, although it may have started much earlier.<\/p><p>Compare the glass before washing, after the final rinse, after drying, and after unloading, wherever safe inspection is available.<\/p><p>If a scratch is already present before washing, examine the incoming glass and previous handling points. If cloudy streaks become visible after drying, check the rinse-water condition and drying section first. Minerals left by rinse water can become visible as the water evaporates.<\/p><p>The glass may also be cleaned successfully and then contaminated again.<\/p><p>Glass is a rigid sheet. Dirt, oil, or particles on a conveyor roll after the final rinse can transfer directly onto its cleaned surface. Drying and unloading rolls are worth inspecting when the marks first appear in those sections.<\/p><p>For example, if glass is clean after drying but develops an oily smudge after unloading, start with the unloading contact surfaces.<\/p><p>The affected face provides another useful clue. A mark confined to the underside directs attention to the lower contact path. A top-face mark calls for a check of upper contact points and possible contamination from above.<\/p><p>For a straight scratch, record its position across the glass width. A hard particle trapped at one fixed contact point may leave a continuous line as the glass moves past it.<\/p><\/div><\/div><style>\n.wlr-post,.wlr-post *{box-sizing:border-box}.wlr-post{max-width:1120px;margin:0 auto 24px;color:#263b50;font-family:inherit}.wlr-post .wl-wrap{background:#fff;border:1px solid #e3eaf0;border-radius:20px;padding:42px 46px;margin:0 0 24px;box-shadow:0 12px 32px rgba(17,52,82,.055)}.wlr-post .wl-wrap:nth-child(even){background:#f6f9fc}.wlr-post h1,.wlr-post h2,.wlr-post h3{color:#173a58;line-height:1.22;letter-spacing:-.02em}.wlr-post h1{font-size:clamp(30px,3.1vw,43px);margin:0 0 26px}.wlr-post h2{font-size:clamp(26px,2.5vw,33px);margin:0 0 25px;padding-left:16px;border-left:5px solid #e1a318}.wlr-post h3{font-size:21px;margin:31px 0 17px}.wlr-post p,.wlr-post li{font-size:16px;line-height:1.72}.wlr-post p{margin:0 0 26px}.wlr-post p:last-child{margin-bottom:0}.wlr-post ul,.wlr-post ol{margin:0 0 26px;padding-left:24px}.wlr-post a{color:#126a9b;text-decoration:none!important;border:0!important;box-shadow:none!important;transition:color .22s ease,background-color .22s ease,transform .22s ease}.wlr-post a:hover,.wlr-post a:focus-visible{color:#c18a11;text-decoration:none!important}.wlr-post a:focus-visible{outline:2px solid #e0aa2b;outline-offset:3px}.wlr-post .wl-hero{display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:40px;background:#f4f8fb}.wlr-post .wl-hero-media img{display:block;width:100%;height:auto;max-height:420px;object-fit:contain;border-radius:15px;background:#fff}.wlr-post .wl-table{overflow-x:auto;margin:14px 0 29px;border-radius:13px}.wlr-post table{border-collapse:collapse;width:100%;min-width:610px;border:0!important}.wlr-post th,.wlr-post td{padding:14px 16px;text-align:left;vertical-align:top;border:0!important;border-bottom:1px solid #e4eaf0!important;font-size:15px;line-height:1.6}.wlr-post th{background:#eaf1f7;color:#173a58;font-weight:700}.wlr-post tr:nth-child(even) td{background:#f7f9fb}.wlr-post .wl-related p:has(>a){margin:20px 0 12px}.wlr-post .wl-related p>a{display:inline-block;background:#eaf2f9;border-radius:10px;padding:11px 17px;font-weight:700;color:#146d9d;transform:translateY(0)}.wlr-post .wl-related p>a:hover,.wlr-post .wl-related p>a:focus-visible{background:#fff1d2;color:#9b6800;transform:translateY(-2px)}.wlr-post .wl-cta{background:#173b5b!important;color:#fff;border-color:#173b5b;padding:42px 46px}.wlr-post .wl-cta p{color:#f2f7fb}.wlr-post .wl-cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}.wlr-post .wl-cta-actions a{display:inline-flex;align-items:center;justify-content:center;min-height:47px;padding:12px 20px;border-radius:9px;font-size:15px;font-weight:700;transform:translateY(0)}.wlr-post .wl-cta-actions a:first-child{background:#efb52e;color:#173b5b}.wlr-post .wl-cta-actions a:last-child{background:#fff;color:#173b5b}.wlr-post .wl-cta-actions a:hover{background:#f8d779;color:#173b5b;transform:translateY(-2px)}@media(max-width:767px){.wlr-post{margin-bottom:18px}.wlr-post .wl-wrap{padding:25px 20px;border-radius:15px;margin-bottom:18px}.wlr-post .wl-hero{grid-template-columns:1fr;gap:21px}.wlr-post h1{font-size:30px}.wlr-post h2{font-size:25px}.wlr-post h3{font-size:20px}.wlr-post p{margin-bottom:22px}.wlr-post .wl-cta-actions{display:grid;grid-template-columns:1fr}.wlr-post .wl-cta-actions a{width:100%}.wlr-post table{min-width:560px}}\n<\/style>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-71f2a14 elementor-widget elementor-widget-html\" data-id=\"71f2a14\" 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<div class=\"wlr-post wlr-post-part-3\"><div class=\"wl-wrap wl-section\"><h2>3. Do the Repeat Marks Match a Roll\u2019s Circumference?<\/h2><p>A small patch of dirt on a rotating roll may touch the glass once per revolution. If the glass moves without significant slipping, the marks can appear at intervals close to the roll\u2019s circumference.<\/p><p>Measure the distance between consecutive marks along the conveying direction. Compare it with the circumference of the rolls that contact the affected glass face.<\/p><p><strong>Roll circumference \u2248 3.14 \u00d7 outside diameter<\/strong><\/p><p>For example, a roll with an actual outside diameter of 100 mm has a circumference of approximately 314 mm. Marks spaced around 314 mm apart make it worth checking.<\/p><p>Use the actual outside diameter if it is available. An old roll that has been worn or reground may differ from its original drawing.<\/p><p>Also check where the marks appear across the glass width. If they repeatedly follow the same path, look for a localized deposit or damaged patch at the corresponding position on the roll.<\/p><p>Two rolls may have similar diameters. In that case, the section where the marks first appear helps distinguish them.<\/p><p>A matching circumference is a useful clue, especially when the affected glass face and contact path also agree. Other rotating components can produce similar patterns, and slipping between the glass and roll can alter the spacing.<\/p><p>If several rolls remain possible, inspect their surfaces during a safely isolated maintenance inspection. Photograph any suspicious area clearly, including its position across the roll face.<\/p><\/div><div class=\"wl-wrap wl-section\"><h2>4. What Should You Look for on the Suspected Roll?<\/h2><p>Once the evidence points to a particular roll, examine its contact surface. Dirt, physical damage, and flat spots call for different corrective actions.<\/p><h3>Dirt and Embedded Particles<\/h3><p>Drying and unloading rolls can collect dust, oil, or other deposits from the surrounding environment. These contaminants may transfer onto glass that has already passed the final rinse.<\/p><p>Oil mist near the washer, for example, can settle inside the drying section and contaminate the roll surfaces.<\/p><p>If a deposit matches the position of the glass mark, clean the roll using the equipment-approved method and check the subsequent glass sheets.<\/p><p>When the mark disappears but returns shortly afterward, inspect the surrounding contamination source. Repeated cleaning will have limited value while fresh dirt continues reaching the roll.<\/p><p>Hard particles deserve particular attention. A glass chip trapped against the contact surface may scratch the passing sheet. Check the affected area for embedded particles and damage to the rubber covering.<\/p><h3>Cuts and Gouges<\/h3><p>Cuts or gouges on drying rolls can produce water streaks.<\/p><p>First, check whether the streak follows a consistent contact path. Then inspect the roll at the corresponding position.<\/p><p>If the rubber surface is damaged in the same area, cleaning may remove deposits, but the damaged contact surface remains.<\/p><p>A water streak that has no corresponding roll damage and varies with the rinse condition should keep the investigation directed toward water residue and drying.<\/p><h3>Flat Spots from Excessive Upper-Roll Loading<\/h3><p>Some glass washers use an upper pinch roll in contact with a lower rubber-covered conveyor roll.<\/p><p>If the upper roll applies excessive load to the lower roll, the rubber covering can develop flat spots. These flattened areas may leave marks, particularly on coated glass.<\/p><p>Inspect the lower roll for localized flattening and compare its position with the marks on the glass. Note whether the problem appeared after a change in the upper-roll contact arrangement.<\/p><p>A persistent flat spot requires attention beyond surface cleaning. Before replacing the damaged roll, the upper-roll loading should be checked against the machine manufacturer\u2019s requirements. Otherwise, the replacement may develop the same problem.<\/p><p>For confirmed pressure-contact positions, Wolorin\u2019s <a href=\"https:\/\/wolorin.com\/th\/function\/pressure-rollers\/\">\u0e25\u0e39\u0e01\u0e01\u0e25\u0e34\u0e49\u0e07\u0e01\u0e14<\/a> page provides further information about controlled contact and rubber-covered roll requirements.<\/p><\/div><\/div><style>\n.wlr-post,.wlr-post *{box-sizing:border-box}.wlr-post{max-width:1120px;margin:0 auto 24px;color:#263b50;font-family:inherit}.wlr-post .wl-wrap{background:#fff;border:1px solid #e3eaf0;border-radius:20px;padding:42px 46px;margin:0 0 24px;box-shadow:0 12px 32px rgba(17,52,82,.055)}.wlr-post .wl-wrap:nth-child(even){background:#f6f9fc}.wlr-post h1,.wlr-post h2,.wlr-post h3{color:#173a58;line-height:1.22;letter-spacing:-.02em}.wlr-post h1{font-size:clamp(30px,3.1vw,43px);margin:0 0 26px}.wlr-post h2{font-size:clamp(26px,2.5vw,33px);margin:0 0 25px;padding-left:16px;border-left:5px solid #e1a318}.wlr-post h3{font-size:21px;margin:31px 0 17px}.wlr-post p,.wlr-post li{font-size:16px;line-height:1.72}.wlr-post p{margin:0 0 26px}.wlr-post p:last-child{margin-bottom:0}.wlr-post ul,.wlr-post ol{margin:0 0 26px;padding-left:24px}.wlr-post a{color:#126a9b;text-decoration:none!important;border:0!important;box-shadow:none!important;transition:color .22s ease,background-color .22s ease,transform .22s ease}.wlr-post a:hover,.wlr-post a:focus-visible{color:#c18a11;text-decoration:none!important}.wlr-post a:focus-visible{outline:2px solid #e0aa2b;outline-offset:3px}.wlr-post .wl-hero{display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:40px;background:#f4f8fb}.wlr-post .wl-hero-media img{display:block;width:100%;height:auto;max-height:420px;object-fit:contain;border-radius:15px;background:#fff}.wlr-post .wl-table{overflow-x:auto;margin:14px 0 29px;border-radius:13px}.wlr-post table{border-collapse:collapse;width:100%;min-width:610px;border:0!important}.wlr-post th,.wlr-post td{padding:14px 16px;text-align:left;vertical-align:top;border:0!important;border-bottom:1px solid #e4eaf0!important;font-size:15px;line-height:1.6}.wlr-post th{background:#eaf1f7;color:#173a58;font-weight:700}.wlr-post tr:nth-child(even) td{background:#f7f9fb}.wlr-post .wl-related p:has(>a){margin:20px 0 12px}.wlr-post .wl-related p>a{display:inline-block;background:#eaf2f9;border-radius:10px;padding:11px 17px;font-weight:700;color:#146d9d;transform:translateY(0)}.wlr-post .wl-related p>a:hover,.wlr-post .wl-related p>a:focus-visible{background:#fff1d2;color:#9b6800;transform:translateY(-2px)}.wlr-post .wl-cta{background:#173b5b!important;color:#fff;border-color:#173b5b;padding:42px 46px}.wlr-post .wl-cta p{color:#f2f7fb}.wlr-post .wl-cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}.wlr-post .wl-cta-actions a{display:inline-flex;align-items:center;justify-content:center;min-height:47px;padding:12px 20px;border-radius:9px;font-size:15px;font-weight:700;transform:translateY(0)}.wlr-post .wl-cta-actions a:first-child{background:#efb52e;color:#173b5b}.wlr-post .wl-cta-actions a:last-child{background:#fff;color:#173b5b}.wlr-post .wl-cta-actions a:hover{background:#f8d779;color:#173b5b;transform:translateY(-2px)}@media(max-width:767px){.wlr-post{margin-bottom:18px}.wlr-post .wl-wrap{padding:25px 20px;border-radius:15px;margin-bottom:18px}.wlr-post .wl-hero{grid-template-columns:1fr;gap:21px}.wlr-post h1{font-size:30px}.wlr-post h2{font-size:25px}.wlr-post h3{font-size:20px}.wlr-post p{margin-bottom:22px}.wlr-post .wl-cta-actions{display:grid;grid-template-columns:1fr}.wlr-post .wl-cta-actions a{width:100%}.wlr-post table{min-width:560px}}\n<\/style>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bb92f5f elementor-widget elementor-widget-html\" data-id=\"bb92f5f\" 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<div class=\"wlr-post wlr-post-part-4\">\r\n\r\n  <div class=\"wl-wrap wl-section\">\r\n    <h2>5. When Is It Time to Replace the Roll?<\/h2>\r\n\r\n    <p>A roll with removable contamination may only need proper cleaning. Replacement becomes more relevant when the rubber covering has persistent flat spots, cuts, gouges, or other damage affecting its contact with the glass.<\/p>\r\n\r\n    <p>If the original roll worked well and operating conditions remain unchanged, its existing dimensions and specifications provide a practical basis for replacement manufacturing.<\/p>\r\n\r\n    <p>A closer roller review is worthwhile when marks return after cleaning or replacement, the cleaning medium has changed, or the roll now contacts a more sensitive glass surface.<\/p>\r\n\r\n    <p>Photographs of the old roll can help show whether the problem involves localized damage, contamination, or an altered contact surface. For coated glass, identify which face contacts the roll and any known surface requirements before confirming the replacement specification.<\/p>\r\n\r\n    <p>Wolorin can proceed directly with custom manufacturing and quotation when drawings, dimensions, samples, or clear specifications are available. For recurring roller-related problems, the old roll condition and actual contact requirements can help confirm the manufacturing direction.<\/p>\r\n  <\/div>\r\n\r\n  <div class=\"wl-wrap wl-section wl-related\">\r\n    <h2>\u0e2b\u0e19\u0e49\u0e32\u0e17\u0e35\u0e48\u0e40\u0e01\u0e35\u0e48\u0e22\u0e27\u0e02\u0e49\u0e2d\u0e07<\/h2>\r\n\r\n    <div class=\"wl-related-card\">\r\n      <p class=\"wl-related-title\">\r\n        <a href=\"https:\/\/wolorin.com\/th\/function\/pressure-rollers\/\">\u0e25\u0e39\u0e01\u0e01\u0e25\u0e34\u0e49\u0e07\u0e01\u0e14<\/a>\r\n      <\/p>\r\n\r\n      <p>For rubber-covered rollers used in controlled pressure-contact positions where contact stability, surface condition, and marking risk require attention.<\/p>\r\n    <\/div>\r\n  <\/div>\r\n\r\n<\/div>\r\n\r\n<style>\r\n\/* =========================================================\r\n   PART 4 ONLY\r\n========================================================= *\/\r\n\r\n.wlr-post-part-4,\r\n.wlr-post-part-4 * {\r\n  box-sizing: border-box;\r\n}\r\n\r\n.wlr-post-part-4 {\r\n  width: 100%;\r\n  max-width: 1120px;\r\n\r\n  margin: 0 auto 24px !important;\r\n  padding: 0 !important;\r\n\r\n  color: #263b50;\r\n\r\n  font-family:\r\n    Inter,\r\n    -apple-system,\r\n    BlinkMacSystemFont,\r\n    \"Segoe UI\",\r\n    Arial,\r\n    sans-serif;\r\n}\r\n\r\n\/* =========================================================\r\n   SECTION CARDS\r\n========================================================= *\/\r\n\r\n.wlr-post-part-4 .wl-wrap {\r\n  width: 100%;\r\n\r\n  margin: 0 0 24px !important;\r\n  padding: 42px 46px !important;\r\n\r\n  background: #ffffff;\r\n\r\n  border: 1px solid #e3eaf0;\r\n  border-radius: 20px;\r\n\r\n  box-shadow: 0 12px 32px rgba(17, 52, 82, .055);\r\n}\r\n\r\n.wlr-post-part-4 .wl-wrap:last-child {\r\n  margin-bottom: 0 !important;\r\n}\r\n\r\n.wlr-post-part-4 .wl-related {\r\n  background: #f6f9fc;\r\n}\r\n\r\n\/* 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1.72;\r\n}\r\n\r\n.wlr-post-part-4 p:last-child {\r\n  margin-bottom: 0 !important;\r\n}\r\n\r\n\/* =========================================================\r\n   LINKS\r\n========================================================= *\/\r\n\r\n.wlr-post-part-4 a,\r\n.wlr-post-part-4 a:link,\r\n.wlr-post-part-4 a:visited,\r\n.wlr-post-part-4 a:hover,\r\n.wlr-post-part-4 a:focus,\r\n.wlr-post-part-4 a:active {\r\n  text-decoration: none !important;\r\n  text-decoration-line: none !important;\r\n  text-decoration-thickness: 0 !important;\r\n\r\n  border: 0 !important;\r\n  border-bottom: 0 !important;\r\n\r\n  box-shadow: none !important;\r\n  background-image: none !important;\r\n}\r\n\r\n.wlr-post-part-4 a {\r\n  color: #126a9b !important;\r\n\r\n  transition:\r\n    color .22s ease,\r\n    transform .22s ease,\r\n    text-shadow .22s ease !important;\r\n}\r\n\r\n.wlr-post-part-4 a:hover,\r\n.wlr-post-part-4 a:focus-visible {\r\n  color: #c18a11 !important;\r\n  text-shadow: 0 0 .25px currentColor;\r\n}\r\n\r\n.wlr-post-part-4 a:focus-visible {\r\n  outline: 2px solid #e0aa2b;\r\n  outline-offset: 3px;\r\n}\r\n\r\n\/* =========================================================\r\n   RELATED PAGE\r\n========================================================= *\/\r\n\r\n.wlr-post-part-4 .wl-related-card {\r\n  width: 100%;\r\n\r\n  margin: 0 !important;\r\n  padding: 22px 24px !important;\r\n\r\n  background: #ffffff;\r\n\r\n  border: 1px solid #dce5ed;\r\n  border-radius: 13px;\r\n\r\n  box-shadow: 0 5px 14px rgba(17, 52, 82, .025);\r\n\r\n  transform: translateY(0);\r\n\r\n  transition:\r\n    transform .22s ease,\r\n    border-color .22s ease,\r\n    box-shadow .22s ease,\r\n    background-color .22s ease;\r\n}\r\n\r\n.wlr-post-part-4 .wl-related-card:hover,\r\n.wlr-post-part-4 .wl-related-card:focus-within {\r\n  transform: translateY(-3px);\r\n\r\n  border-color: #c8d5e1;\r\n  background: #ffffff;\r\n\r\n  box-shadow: 0 12px 24px rgba(17, 52, 82, .075);\r\n}\r\n\r\n.wlr-post-part-4 .wl-related-card p {\r\n  margin: 0 !important;\r\n\r\n  color: #526579;\r\n\r\n  font-size: 15.5px;\r\n  font-weight: 400;\r\n  line-height: 1.65;\r\n}\r\n\r\n.wlr-post-part-4 .wl-related-card .wl-related-title {\r\n  margin: 0 0 12px !important;\r\n}\r\n\r\n.wlr-post-part-4 .wl-related-card .wl-related-title a,\r\n.wlr-post-part-4 .wl-related-card .wl-related-title a:link,\r\n.wlr-post-part-4 .wl-related-card .wl-related-title a:visited {\r\n  display: inline-block;\r\n\r\n  padding: 0 !important;\r\n\r\n  background: none !important;\r\n\r\n  color: #146d9d !important;\r\n\r\n  font-size: 17px;\r\n  font-weight: 600;\r\n  line-height: 1.35;\r\n\r\n  transform: translateY(0);\r\n}\r\n\r\n.wlr-post-part-4 .wl-related-card .wl-related-title a:hover,\r\n.wlr-post-part-4 .wl-related-card .wl-related-title a:focus-visible {\r\n  color: #c18a11 !important;\r\n\r\n  transform: translateY(-2px);\r\n}\r\n\r\n.wlr-post-part-4 .wl-related-card a::before,\r\n.wlr-post-part-4 .wl-related-card a::after {\r\n  content: none !important;\r\n  display: none !important;\r\n}\r\n\r\n\/* =========================================================\r\n   MOBILE\r\n========================================================= *\/\r\n\r\n@media (max-width: 767px) {\r\n\r\n  .wlr-post-part-4 {\r\n    margin-bottom: 18px !important;\r\n  }\r\n\r\n  .wlr-post-part-4 .wl-wrap {\r\n    margin-bottom: 18px !important;\r\n\r\n    padding: 25px 20px !important;\r\n\r\n    border-radius: 15px;\r\n  }\r\n\r\n  .wlr-post-part-4 h2 {\r\n    margin-bottom: 24px !important;\r\n\r\n    font-size: 25px;\r\n  }\r\n\r\n  .wlr-post-part-4 h2::before {\r\n    top: 3px;\r\n    height: 28px;\r\n  }\r\n\r\n  .wlr-post-part-4 p {\r\n    margin-bottom: 22px !important;\r\n\r\n    font-size: 15.5px;\r\n    line-height: 1.72;\r\n  }\r\n\r\n  .wlr-post-part-4 .wl-related-card {\r\n    padding: 20px !important;\r\n  }\r\n\r\n  .wlr-post-part-4 .wl-related-card p {\r\n    margin: 0 !important;\r\n\r\n    font-size: 15px;\r\n  }\r\n\r\n  .wlr-post-part-4 .wl-related-card .wl-related-title {\r\n    margin-bottom: 10px !important;\r\n  }\r\n}\r\n<\/style>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-afd3d6d elementor-widget elementor-widget-html\" data-id=\"afd3d6d\" 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<div class=\"wlr-post wlr-post-part-5\"><div class=\"wl-wrap wl-cta\"><p>If you have drawings, dimensions, or an old roll sample, send them to Wolorin for custom manufacturing, quotation, or production confirmation. For recurring roller-related marks, start with the roller position, contact medium, mark photos, and old-roll condition.<\/p><div class=\"wl-cta-actions\" style=\"margin-top:28px\"><a href=\"https:\/\/wolorin.com\/th\/send-drawings\/\">\u0e2a\u0e48\u0e07\u0e41\u0e1a\u0e1a\u0e2b\u0e23\u0e37\u0e2d\u0e23\u0e32\u0e22\u0e25\u0e30\u0e40\u0e2d\u0e35\u0e22\u0e14\u0e25\u0e39\u0e01\u0e01\u0e25\u0e34\u0e49\u0e07<\/a><a href=\"https:\/\/wolorin.com\/th\/contact-us\/\">\u0e15\u0e34\u0e14\u0e15\u0e48\u0e2d\u0e40\u0e23\u0e32<\/a><\/div><\/div><\/div><style>\n.wlr-post,.wlr-post *{box-sizing:border-box}.wlr-post{max-width:1120px;margin:0 auto 24px;color:#263b50;font-family:inherit}.wlr-post .wl-wrap{background:#fff;border:1px solid #e3eaf0;border-radius:20px;padding:42px 46px;margin:0 0 24px;box-shadow:0 12px 32px rgba(17,52,82,.055)}.wlr-post .wl-wrap:nth-child(even){background:#f6f9fc}.wlr-post h1,.wlr-post h2,.wlr-post h3{color:#173a58;line-height:1.22;letter-spacing:-.02em}.wlr-post h1{font-size:clamp(30px,3.1vw,43px);margin:0 0 26px}.wlr-post h2{font-size:clamp(26px,2.5vw,33px);margin:0 0 25px;padding-left:16px;border-left:5px solid #e1a318}.wlr-post h3{font-size:21px;margin:31px 0 17px}.wlr-post p,.wlr-post li{font-size:16px;line-height:1.72}.wlr-post p{margin:0 0 26px}.wlr-post p:last-child{margin-bottom:0}.wlr-post ul,.wlr-post ol{margin:0 0 26px;padding-left:24px}.wlr-post a{color:#126a9b;text-decoration:none!important;border:0!important;box-shadow:none!important;transition:color .22s ease,background-color .22s ease,transform .22s ease}.wlr-post a:hover,.wlr-post a:focus-visible{color:#c18a11;text-decoration:none!important}.wlr-post a:focus-visible{outline:2px solid #e0aa2b;outline-offset:3px}.wlr-post .wl-hero{display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:40px;background:#f4f8fb}.wlr-post .wl-hero-media img{display:block;width:100%;height:auto;max-height:420px;object-fit:contain;border-radius:15px;background:#fff}.wlr-post .wl-table{overflow-x:auto;margin:14px 0 29px;border-radius:13px}.wlr-post table{border-collapse:collapse;width:100%;min-width:610px;border:0!important}.wlr-post th,.wlr-post td{padding:14px 16px;text-align:left;vertical-align:top;border:0!important;border-bottom:1px solid #e4eaf0!important;font-size:15px;line-height:1.6}.wlr-post th{background:#eaf1f7;color:#173a58;font-weight:700}.wlr-post tr:nth-child(even) td{background:#f7f9fb}.wlr-post .wl-related p:has(>a){margin:20px 0 12px}.wlr-post .wl-related p>a{display:inline-block;background:#eaf2f9;border-radius:10px;padding:11px 17px;font-weight:700;color:#146d9d;transform:translateY(0)}.wlr-post .wl-related p>a:hover,.wlr-post .wl-related p>a:focus-visible{background:#fff1d2;color:#9b6800;transform:translateY(-2px)}.wlr-post .wl-cta{background:#173b5b!important;color:#fff;border-color:#173b5b;padding:42px 46px}.wlr-post .wl-cta p{color:#f2f7fb}.wlr-post .wl-cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}.wlr-post .wl-cta-actions a{display:inline-flex;align-items:center;justify-content:center;min-height:47px;padding:12px 20px;border-radius:9px;font-size:15px;font-weight:700;transform:translateY(0)}.wlr-post .wl-cta-actions a:first-child{background:#efb52e;color:#173b5b}.wlr-post .wl-cta-actions a:last-child{background:#fff;color:#173b5b}.wlr-post .wl-cta-actions a:hover{background:#f8d779;color:#173b5b;transform:translateY(-2px)}@media(max-width:767px){.wlr-post{margin-bottom:18px}.wlr-post .wl-wrap{padding:25px 20px;border-radius:15px;margin-bottom:18px}.wlr-post .wl-hero{grid-template-columns:1fr;gap:21px}.wlr-post h1{font-size:30px}.wlr-post h2{font-size:25px}.wlr-post h3{font-size:20px}.wlr-post p{margin-bottom:22px}.wlr-post .wl-cta-actions{display:grid;grid-template-columns:1fr}.wlr-post .wl-cta-actions a{width:100%}.wlr-post table{min-width:560px}}\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\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Marks on Glass After Washing: When to Check Conveyor Rolls Marks on glass after washing may appear as pale water rings, straight scratches, oily smudges, or evenly spaced impressions. Start with the appearance of the mark, then find the first stage where it shows up. Water rings suggest rinse residue or drying problems. Scratches call [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","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-5644","post","type-post","status-publish","format-standard","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/wolorin.com\/th\/wp-json\/wp\/v2\/posts\/5644","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wolorin.com\/th\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wolorin.com\/th\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wolorin.com\/th\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/wolorin.com\/th\/wp-json\/wp\/v2\/comments?post=5644"}],"version-history":[{"count":17,"href":"https:\/\/wolorin.com\/th\/wp-json\/wp\/v2\/posts\/5644\/revisions"}],"predecessor-version":[{"id":6127,"href":"https:\/\/wolorin.com\/th\/wp-json\/wp\/v2\/posts\/5644\/revisions\/6127"}],"wp:attachment":[{"href":"https:\/\/wolorin.com\/th\/wp-json\/wp\/v2\/media?parent=5644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wolorin.com\/th\/wp-json\/wp\/v2\/categories?post=5644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wolorin.com\/th\/wp-json\/wp\/v2\/tags?post=5644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}