{"id":10516,"date":"2026-07-09T00:00:39","date_gmt":"2026-07-09T00:00:39","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=10516"},"modified":"2026-07-09T21:02:03","modified_gmt":"2026-07-09T21:02:03","slug":"release-coating-additive-selection","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/zh\/release-coating-additive-selection\/","title":{"rendered":"How to Choose Release Coating Additives for UV Inks and Overprint Varnishes"},"content":{"rendered":"<p><strong>\u5feb\u901f\u56de\u7b54\uff1a<\/strong> \u4e3a\u4e86 <strong>UV inks and overprint varnishes that need release-coating or anti-sticking control<\/strong>\u6700\u7b80\u6d01\u7684\u7b2c\u4e00\u4efd\u5019\u9009\u540d\u5355\u901a\u5e38\u4ee5\u2026\u2026\u5f00\u5934 <a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiag-2750-2760-2780-2505\/\">CHLUMIAG\u00ae 2750<\/a> when the job is a <strong>reactive UV reverse-varnish route<\/strong> and buyers want surface smoothness plus more permanent fixation in the cured film, <a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiag-3501\/\">CHLUMIAG\u00ae 3501<\/a> \u4ec0\u4e48\u65f6\u5019 <strong>printing-ink, overprint-varnish, and release-coating compatibility<\/strong> is the first decision driver, and <a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiag-3565\/\">CHLUMIAG\u00ae 3565<\/a> when the program needs an <strong>anti-sticking and peeling-aid route<\/strong> with broader UV, solvent, and water-based reach, but the lab can control its stated <strong>pinhole-risk watchpoint<\/strong>.<\/p>\n<p>That is the useful buyer split. The real decision is not just which additive makes the surface slip more easily. It is whether the project needs <strong>a reactive UV route for reverse varnish and more permanent surface fixation<\/strong>, <strong>a route clearly positioned for inks, OPV, and release coatings<\/strong>\uff0c \u6216\u8005 <strong>a broader anti-sticking route that needs tighter process discipline<\/strong>.<\/p>\n<h2>\u4e3a\u4ec0\u4e48\u6b64\u9875\u9762\u503c\u5f97\u5728 CHLUMICRYL\u00ae \u5206\u652f\u4e2d\u62e5\u6709\u81ea\u5df1\u7684\u4f4d\u7f6e<\/h2>\n<p>\u9f99\u660c\u5df2\u7ecf\u6709\u4e86\u66f4\u5bbd\u6cdb\u7684\u9875\u9762 <a href=\"https:\/\/longchangchemical.com\/zh\/chlumicryl-coating-ink-additives\/\">CHLUMICRYL\u00ae\u6d82\u6599\u548c\u6cb9\u58a8\u6dfb\u52a0\u5242<\/a>, <a href=\"https:\/\/longchangchemical.com\/zh\/uv-varnish-surface-control\/\">surface-control additives for UV varnishes<\/a>, <a href=\"https:\/\/longchangchemical.com\/zh\/anti-blocking-additives-coatings-inks\/\">\u9632\u5835\u585e\u6dfb\u52a0\u5242<\/a>\uff0c \u548c <a href=\"https:\/\/longchangchemical.com\/zh\/coating-defect-additive-selection\/\">\u7f3a\u9677\u9a71\u52a8\u7684\u6dfb\u52a0\u5242\u9009\u62e9<\/a>.<\/p>\n<p>This page answers a narrower B2B question that those pages do not fully isolate: <strong>if the formulation is a UV ink or overprint varnish and the buyer needs release behavior, cleaner anti-sticking, or easier film separation, which additive route should be screened first?<\/strong><\/p>\n<p>That narrower application page is worth publishing because release-oriented print and varnish work often sits between several nearby additive jobs. Buyers are not only asking for leveling or anti-blocking in the abstract. They are usually balancing <strong>release behavior<\/strong>, <strong>print-side compatibility<\/strong>, <strong>\u8868\u9762\u5149\u6ed1\u5ea6<\/strong>, <strong>stacking or contact separation<\/strong>\uff0c \u548c <strong>risk of new film defects<\/strong>.<\/p>\n<h2>What buyers are usually trying to fix in release-coating and anti-sticking work<\/h2>\n<p>In practical UV ink and overprint-varnish programs, release or anti-sticking complaints often show up as one of these downstream problems:<\/p>\n<ul>\n<li>finished sheets or coated parts separate poorly after contact or stacking<\/li>\n<li>a reverse-varnish layer needs smoother release behavior without losing cured-film discipline<\/li>\n<li>an overprint varnish needs more controlled surface slip and easier handling<\/li>\n<li>the team wants an anti-sticking route, but does not want to choose a broader additive family blindly<\/li>\n<\/ul>\n<p>General industry practice usually treats release and anti-sticking issues as <strong>finished-film handling and surface-energy control problems<\/strong>, not just liquid-stage flow questions. That is why a release-coating application page can sit cleanly inside the CHLUMICRYL\u00ae branch without collapsing into the already-live broad leveling or anti-blocking pages.<\/p>\n<h2>Quick comparison table: CHLUMIAG\u00ae 2750 vs 3501 vs 3565<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u8d2d\u4e70\u56e0\u7d20<\/th>\n<th>CHLUMIAG\u00ae 2750<\/th>\n<th>CHLUMIAG\u00ae 3501<\/th>\n<th>CHLUMIAG\u00ae 3565<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5728\u5f53\u524d\u9f99\u660c\u9875\u9762\u4e0a\u7684\u4e3b\u8981\u89d2\u8272<\/td>\n<td>Reactive-acrylic UV surface-control route from the 2750\/2760\/2780\/2505 family<\/td>\n<td>Acrylic-modified silicone oil positioned for printing inks, inkjet inks, screen inks, wood coatings, overprint varnishes, release coatings, and anti-sticking agents<\/td>\n<td>Organosilicon surfactant and leveling route also positioned as an anti-sticking and peeling aid<\/td>\n<\/tr>\n<tr>\n<td>Best-fit first screen<\/td>\n<td>Reverse-varnish and reactive UV surface-control work<\/td>\n<td>Application compatibility across inks, OPV, and release-coating programs<\/td>\n<td>Anti-sticking route where broader system flexibility matters<\/td>\n<\/tr>\n<tr>\n<td>Supported system language<\/td>\n<td>Suitable for solvent-free UV radiation-curing systems, solvent-based UV coatings, and other acrylic-resin systems<\/td>\n<td>Current product-page positioning centers on print and coating applications rather than one narrow system lane<\/td>\n<td>Supported in UV, solvent, and water-based systems<\/td>\n<\/tr>\n<tr>\n<td>\u91cd\u8981\u89c2\u5bdf\u70b9<\/td>\n<td>The family page covers several nearby variants, so buyers should not assume every subgrade serves the same job<\/td>\n<td>Application breadth is the first reason to shortlist it, so lab teams should still confirm the exact release job they need<\/td>\n<td>Add before the curing agent, stir thoroughly, and screen the stated pinhole risk before production<\/td>\n<\/tr>\n<tr>\n<td>\u4e3a\u4ec0\u4e48\u4e70\u5bb6\u9996\u5148\u9009\u62e9\u5b83<\/td>\n<td>They want a reactive route that crosslinks into the cured network and is described as more suitable for reverse varnish<\/td>\n<td>They want a route already positioned around inks, OPV, release coatings, and anti-sticking<\/td>\n<td>They want anti-sticking plus broader handling flexibility, and can manage a stricter process screen<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>When CHLUMIAG\u00ae 2750 is the better first screen<\/h2>\n<p><a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiag-2750-2760-2780-2505\/\">CHLUMIAG\u00ae 2750<\/a> should move first when the buyer wants a <strong>reactive UV route<\/strong> rather than a purely application-labeled shortcut. The current Longchang family page states that the line <strong>contains reactive acrylic functional groups<\/strong>\uff0c \u662f <strong>suitable for radiation-curing systems<\/strong>\uff0c \u548c <strong>crosslinks within the polymer network structure<\/strong>, which means the additive is described as becoming more permanently fixed at the coating surface after cure.<\/p>\n<p>The same page also highlights <strong>excellent leveling<\/strong>, <strong>\u8868\u9762\u5149\u6ed1\u5ea6<\/strong>\uff0c \u548c <strong>tape resistance<\/strong>, and says the family is suitable for <strong>solvent-free UV radiation-curing systems<\/strong>, <strong>solvent-based UV coatings<\/strong>\uff0c \u548c <strong>other acrylic-resin systems<\/strong>. Most importantly for this page angle, the company text says <strong>2750 is more suitable for reverse varnish<\/strong>.<\/p>\n<ul>\n<li><strong>\u6700\u4f73\u5339\u914d\uff1a<\/strong> reverse-varnish or release-oriented UV work where a more reactive cured-film route is the main attraction<\/li>\n<li><strong>\u4e3b\u8981\u4f18\u52bf\uff1a<\/strong> the company-supported story is about reactive fixation, smoothness, and reverse-varnish suitability, not just generic slip<\/li>\n<li><strong>\u4e3b\u8981\u89c2\u5bdf\u70b9\uff1a<\/strong> the page is a family page that also includes 2760, 2780, and 2505, so buyers should keep the exact subgrade distinction visible<\/li>\n<\/ul>\n<p>If the buyer is screening a release route for a reverse-varnish program and wants a technically tighter UV-cured path, 2750 is often the strongest first conversation.<\/p>\n<h2>When CHLUMIAG\u00ae 3501 is the better fit<\/h2>\n<p><a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiag-3501\/\">CHLUMIAG\u00ae 3501<\/a> deserves earlier review when the project brief is driven first by <strong>application compatibility<\/strong>. On the current Longchang product page, 3501 is positioned as an <strong>acrylic-modified silicone oil<\/strong> used in <strong>printing inks<\/strong>, <strong>inkjet inks<\/strong>, <strong>screen printing inks<\/strong>, <strong>wood coatings<\/strong>, <strong>overprint varnishes<\/strong>, <strong>release coatings<\/strong>\uff0c \u548c <strong>anti-sticking agents<\/strong>.<\/p>\n<p>That makes 3501 a commercially useful first route when the buyer is not trying to solve only one narrow reverse-varnish problem. Instead, they want a shortlist candidate already framed around the same application cluster their project lives in.<\/p>\n<ul>\n<li><strong>\u6700\u4f73\u5339\u914d\uff1a<\/strong> UV inks and OPV teams that need a route clearly connected to print-side, varnish-side, and release-coating use windows<\/li>\n<li><strong>\u4e3b\u8981\u4f18\u52bf\uff1a<\/strong> the product-page application list is unusually aligned with this article\u2019s topic, so the shortlist logic is easy to explain internally<\/li>\n<li><strong>\u4e3b\u8981\u89c2\u5bdf\u70b9\uff1a<\/strong> because the product is attractive precisely for its broad application positioning, buyers should still define whether the first problem is release, anti-sticking, leveling, or overall surface control<\/li>\n<\/ul>\n<p>If the commercial question is \u201cwhich candidate already sits inside inks, OPV, and release-coating language,\u201d 3501 is usually the cleanest answer.<\/p>\n<h2>\u5f53 CHLUMIAG\u00ae 3565 \u66f4\u5408\u9002\u65f6<\/h2>\n<p><a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiag-3565\/\">CHLUMIAG\u00ae 3565<\/a> belongs earlier when the buyer wants a route that is not limited to one narrow print-side lane. Longchang supports it in <strong>\u7d2b\u5916\u3001\u6eb6\u5242\u548c\u6c34\u57fa\u4f53\u7cfb<\/strong>, describes it as an <strong>organosilicon surfactant and leveling agent<\/strong>, and also positions it as an <strong>anti-sticking and peeling aid<\/strong>.<\/p>\n<p>On the current Longchang product information, 3565 is described as <strong>water-dispersible<\/strong> \u548c <strong>\u6cb9\u6eb6\u6027<\/strong>, with a recommended usage of <strong>0.05% \u81f3 1%<\/strong>. Longchang also says it should be <strong>\u5728\u56fa\u5316\u5242\u4e4b\u524d\u52a0\u5165<\/strong> and stirred thoroughly. The critical watchpoint is explicit: the page warns that it <strong>\u53ef\u80fd\u5bfc\u81f4\u9488\u5b54<\/strong> and should be tested before industrial production.<\/p>\n<ul>\n<li><strong>\u6700\u4f73\u5339\u914d\uff1a<\/strong> anti-sticking or peeling-aid programs that want broader system flexibility and can manage the process discipline<\/li>\n<li><strong>\u4e3b\u8981\u4f18\u52bf\uff1a<\/strong> broader route flexibility than a narrower application-labeled release-coating option<\/li>\n<li><strong>\u4e3b\u8981\u89c2\u5bdf\u70b9\uff1a<\/strong> do not ignore the stated pinhole-risk warning, especially if the film is already defect-sensitive<\/li>\n<\/ul>\n<p>3565 is not the safest lazy default, but it is a strong shortlist candidate when the lab can control the addition sequence and wants more flexibility than a single application lane.<\/p>\n<h2>Why 2780 is not the first route on this page<\/h2>\n<p>The current 2750 family page also notes that <strong>2780 is more commonly used in anti-blocking and anti-graffiti applications<\/strong>. That matters because it helps keep this page from overlapping the already-live broader anti-blocking and anti-graffiti branch.<\/p>\n<p>For this article, the goal is not to re-run the same anti-blocking cluster. The goal is to help buyers in <strong>release-coating, reverse-varnish, and print-surface separation work<\/strong> choose the right first screen. That is why 2750, 3501, and 3565 create a cleaner shortlist for this application page.<\/p>\n<h2>\u4e70\u5bb6\u5728\u7d22\u53d6\u6837\u54c1\u524d\u5e94\u8be5\u5982\u4f55\u9009\u62e9<\/h2>\n<h3>1. Decide whether reverse varnish is the real first decision<\/h3>\n<p>If yes, move 2750 earlier. The current company wording around reactive acrylic functionality and reverse-varnish suitability makes it the clearest first route.<\/p>\n<h3>2. Ask whether application compatibility matters more than reactive chemistry language<\/h3>\n<p>If the coating program spans UV inks, OPV, and release-coating work, 3501 becomes easier to defend internally because the company-supported application list already matches the buying context.<\/p>\n<h3>3. Check whether anti-sticking is the main pain point or just one part of broader surface control<\/h3>\n<p>If anti-sticking and peeling behavior are central, 3565 deserves earlier review, but only if the team can manage its addition sequence and defect screen.<\/p>\n<h3>4. Treat pinhole sensitivity as a first-round filter, not a late-stage surprise<\/h3>\n<p>3565 can be useful, but Longchang\u2019s own warning means buyers should not postpone that screening step until production.<\/p>\n<h3>5. Keep nearby page overlap under control<\/h3>\n<p>If the problem is really general anti-blocking across multiple chemistries, start with the broader <a href=\"https:\/\/longchangchemical.com\/zh\/anti-blocking-additives-coatings-inks\/\">anti-blocking additive guide<\/a>. If the problem is specific to release-coating or reverse-varnish work in UV inks and OPV, this page is the better entry point.<\/p>\n<h2>\u672c\u9875\u63a8\u8350\u7684\u9f99\u660c\u8def\u7ebf<\/h2>\n<ul>\n<li><strong>Reactive reverse-varnish route:<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiag-2750-2760-2780-2505\/\">CHLUMIAG\u00ae 2750 family<\/a><\/li>\n<li><strong>Ink, OPV, and release-coating route:<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiag-3501\/\">CHLUMIAG\u00ae 3501<\/a><\/li>\n<li><strong>Anti-sticking and peeling-aid route:<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/product\/chlumiag-3565\/\">CHLUMIAG\u00ae 3565<\/a><\/li>\n<li><strong>Related application page:<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/uv-varnish-surface-control\/\">How to Choose Surface-Control Additives for UV Varnishes<\/a><\/li>\n<li><strong>\u76f8\u5173\u529f\u80fd\u9875\u9762\uff1a<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/anti-blocking-additives-coatings-inks\/\">\u5982\u4f55\u9009\u62e9\u6d82\u6599\u548c\u6cb9\u58a8\u7684\u9632\u7c98\u8fde\u6dfb\u52a0\u5242<\/a><\/li>\n<li><strong>\u96c6\u7fa4\u6982\u89c8\uff1a<\/strong> <a href=\"https:\/\/longchangchemical.com\/zh\/chlumicryl-coating-ink-additives\/\">CHLUMICRYL\u00ae \u6d82\u5c42\u548c\u6cb9\u58a8\u6dfb\u52a0\u5242<\/a><\/li>\n<\/ul>\n<h2>\u5e38\u89c1\u95ee\u9898<\/h2>\n<h3>Which product is the strongest first screen for reverse-varnish release work?<\/h3>\n<p>Usually CHLUMIAG\u00ae 2750, because the current Longchang family page explicitly says 2750 is more suitable for reverse varnish and frames the route around reactive acrylic UV curing.<\/p>\n<h3>When should buyers choose CHLUMIAG\u00ae 3501 before 2750?<\/h3>\n<p>Choose 3501 earlier when the project brief is anchored in printing inks, overprint varnishes, release coatings, and anti-sticking-agent applications, and application compatibility matters more than reactive reverse-varnish language.<\/p>\n<h3>What makes CHLUMIAG\u00ae 3565 different in release-coating selection?<\/h3>\n<p>Longchang makes its anti-sticking and peeling-aid role, cross-system fit, add-before-curing-agent requirement, and pinhole-risk watchpoint more explicit than the other two routes. That gives it a different role in the shortlist.<\/p>\n<h3>Are 2750, 3501, and 3565 interchangeable?<\/h3>\n<p>No. Their company-supported positioning is different enough that buyers should not treat them as drop-in substitutes. One is framed around reactive reverse-varnish UV work, one around application compatibility, and one around broader anti-sticking handling with a stronger defect watchpoint.<\/p>\n<h2>Need a tighter shortlist for your release-coating project?<\/h2>\n<p>If your UV ink or overprint-varnish system is sticking after contact, releasing poorly, or needs a more controlled surface-separation route, define the real first-screen job before requesting samples. In many projects, that quickly narrows the first round to <strong>2750 for a reactive reverse-varnish route<\/strong>, <strong>3501 for application-matched release-coating and ink compatibility<\/strong>\uff0c \u6216\u8005 <strong>3565 for anti-sticking flexibility with tighter process discipline<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"<p>A B2B buyer guide for choosing release-coating and anti-sticking additives in UV inks and overprint varnishes, with a practical shortlist around CHLUMIAG\u00ae 2750, CHLUMIAG\u00ae 3501, and CHLUMIAG\u00ae 3565.<\/p>","protected":false},"author":6,"featured_media":10517,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10516","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - 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