{"id":1087,"date":"2026-07-10T07:26:04","date_gmt":"2026-07-10T07:26:04","guid":{"rendered":"https:\/\/lypaperchem.com\/?p=1087"},"modified":"2026-07-15T02:21:41","modified_gmt":"2026-07-15T02:21:41","slug":"ly-wa403-food-grade-pae-wet-strength-agent","status":"publish","type":"post","link":"https:\/\/lypaperchem.com\/vi\/ly-wa403-food-grade-pae-wet-strength-agent\/","title":{"rendered":"LY-WA403 Ch\u1ea5t t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n khi \u01b0\u1edbt PAE \u0111\u1ea1t ti\u00eau chu\u1ea9n th\u1ef1c ph\u1ea9m"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Food-Grade Polyamide-Polyamine Epichlorohydrine (PAE) Wet Strength Resin LY-WA403<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">LY-WA403 is a premium food-grade, water-soluble, cationic thermosetting resin formulated from high-purity Polyamide-Polyamine Epichlorohydrine (PAE\/PPE resin)<sup><\/sup>. As an advanced wet strength additive engineered specifically for strict regulatory environments, it features a highly controlled polymer structure with ultra-low organic chlorine residues<sup><\/sup>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/lypaperchem.com\/wp-content\/uploads\/2026\/07\/Wet-strength-Agent-403.jpg\" alt=\"\" class=\"wp-image-1155\" srcset=\"https:\/\/lypaperchem.com\/wp-content\/uploads\/2026\/07\/Wet-strength-Agent-403.jpg 1000w, https:\/\/lypaperchem.com\/wp-content\/uploads\/2026\/07\/Wet-strength-Agent-403-300x300.jpg 300w, https:\/\/lypaperchem.com\/wp-content\/uploads\/2026\/07\/Wet-strength-Agent-403-150x150.jpg 150w, https:\/\/lypaperchem.com\/wp-content\/uploads\/2026\/07\/Wet-strength-Agent-403-768x768.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Designed for systems that demand absolute non-toxicity and health safety, LY-WA403 offers exceptional self-fixation across acidic, neutral, and medium-alkaline papermaking conditions<sup><\/sup>. It delivers robust wet structural reinforcement even in wet-end environments with high salt concentrations or rich anionic impurities, providing food-contact paper manufacturers with an internationally compliant, high-barrier process solution<sup><\/sup>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Technical Specifications &amp; Parameters <\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Property \/ Indicator<\/strong><\/td><td><strong>Technical Standard<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Appearance<\/strong><\/td><td>Light yellow to light amber translucent liquid<\/td><\/tr><tr><td><strong>Solid Content<\/strong><\/td><td>12.5% \u00b1 0.5% \/ 15.0% \u00b1 0.5% \/ 18.0% \u00b1 0.5%<\/td><\/tr><tr><td><strong>Viscosity (25\u00b0C)<\/strong><\/td><td>\u2264 70 mPa\u00b7s<\/td><\/tr><tr><td><strong>pH Value<\/strong><\/td><td>2.0 \u2013 7.0<\/td><\/tr><tr><td><strong>Ionic Charge Type<\/strong><\/td><td>Cationic<\/td><\/tr><tr><td><strong>Solubility<\/strong><\/td><td>Dissolves easily in cold water<\/td><\/tr><tr><td><strong>1,3-Dichloropropan-2-ol (1,3-DCP)<\/strong><\/td><td>\u2264 75 mg\/kg<\/td><\/tr><tr><td><strong>3-Monochloropropane-1,2-diol (3-MCPD)<\/strong><\/td><td>\u2264 75 mg\/kg<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Core Technical Advantages &amp; Value Proposition<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. Ultra-Low Organic Chlorine Residues for Strict Food Safety<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Standard industrial-grade PAE resins usually contain elevated levels of by-products like 1,3-DCP and 3-MCPD, which restrict their use in direct food contact. LY-WA403 undergoes a specialized cross-linking and refining process that limits both 1,3-DCP and 3-MCPD levels to \u2264 75 mg\/kg<sup><\/sup>. This clean chemical profile matches international food-contact safety standards, making it excellent for export-oriented paper mills<sup><\/sup>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. High Wet Strength Ratio Retention up to 40%<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Untreated food packaging materials absorb moisture rapidly, losing almost all integrity and retaining only 2% to 10% of their dry strength<sup><\/sup>. Introducing LY-WA403 builds a thermosetting chemical matrix between fibers, raising the paper&#8217;s wet tensile strength to <strong>20% to 40% of its initial dry strength<\/strong><sup><\/sup>. This ensures that food containers preserve their structural form when holding liquids or hot steam<sup><\/sup>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Preserved Softness and Excellent Heat Resistance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LY-WA403 imparts exceptional wet strength without changing the original softness, fiber texture, or high absorption performance of the paper sheet<sup><\/sup>. The product uses low dosing quantities, provides great heat resistance during hot-filling or baking applications, and protects high-brightness papers from yellowing over time<sup><\/sup>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Eco-Friendly Repulping and Multi-Action Wet-End Benefits<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">While it offers reliable water resistance during final product use, broke or scrap food paper treated with LY-WA403 remains <strong>highly responsive to typical industrial repulping loops<\/strong><sup><\/sup>. This simplifies mill recovery, lowers fiber waste, and cuts down hydrating energy costs<sup><\/sup>. Its strong cationic charge also enhances fiber retention and drainage speeds near the wire<sup><\/sup>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Application &amp; Dosage Guidelines<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">To ensure stable chemical retention and uniform distribution without mechanical polymer breakdown, implement the following steps:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Dilution:<\/strong> The liquid concentrate should be pre-diluted with <strong>cold water down to a 5% concentration<\/strong> before entering the system.<\/li>\n\n\n\n<li><strong>Addition Point:<\/strong> For complete, uniform mixing with the pulp stock while avoiding excessive mechanical shear forces, the injection point should be positioned <strong>near the headbox<\/strong>.<\/li>\n\n\n\n<li><strong>Chemical Compatibility:<\/strong> As a highly reactive cationic polymer, it <strong>must not be directly pre-blended or mixed with anionic chemicals<\/strong> to avoid precipitate formation. It works perfectly when used sequentially alongside rosin sizing agents and alum.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Main Product Applications<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">LY-WA403 is engineered specifically for direct and indirect food-contact packaging applications, showing excellent performance in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Direct Food-Contact Paper:<\/strong> Paper cups, paper straws, food packaging wraps, fast-food catering bags, and fruit-bagging papers.<\/li>\n\n\n\n<li><strong>High-Barrier Packaging:<\/strong> Liquid packaging board (LPB), milk cartons, and premium sanitary paper requiring strict compliance combined with liquid resistance.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Packaging, Storage &amp; Handling<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Logistics Packaging:<\/strong> Shipped in secure <strong>200 kg plastic drums or 1,000 kg IBC tote containers<\/strong> designed for automated dosing setups.<\/li>\n\n\n\n<li><strong>Storage Environment:<\/strong> Store within a clean, dry, and well-ventilated warehouse at ambient temperatures <strong>between 5\u00b0C and 30\u00b0C<\/strong>. Protect fully from freezing temperatures and direct sunlight exposure.<\/li>\n\n\n\n<li><strong>Shelf Life:<\/strong> 3 months from the date of manufacture when maintained in its original, unopened, and sealed packaging.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Food-Grade Polyamide-Polyamine Epichlorohydrine (PAE) Wet Strength Resin LY-WA403 LY-WA403 is a premium food-grade, water-soluble, cationic &#8230; <a title=\"LY-WA403 Ch\u1ea5t t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n khi \u01b0\u1edbt PAE \u0111\u1ea1t ti\u00eau chu\u1ea9n th\u1ef1c ph\u1ea9m\" class=\"read-more\" href=\"https:\/\/lypaperchem.com\/vi\/ly-wa403-food-grade-pae-wet-strength-agent\/\" aria-label=\"\u0110\u1ecdc th\u00eam v\u1ec1 LY-WA403 Food Grade PAE Wet Strength Agent\">\u0110\u1ecdc th\u00eam<\/a><\/p>","protected":false},"author":1,"featured_media":1155,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-1087","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-strength-resins","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"_links":{"self":[{"href":"https:\/\/lypaperchem.com\/vi\/wp-json\/wp\/v2\/posts\/1087","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lypaperchem.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lypaperchem.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lypaperchem.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lypaperchem.com\/vi\/wp-json\/wp\/v2\/comments?post=1087"}],"version-history":[{"count":2,"href":"https:\/\/lypaperchem.com\/vi\/wp-json\/wp\/v2\/posts\/1087\/revisions"}],"predecessor-version":[{"id":1156,"href":"https:\/\/lypaperchem.com\/vi\/wp-json\/wp\/v2\/posts\/1087\/revisions\/1156"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lypaperchem.com\/vi\/wp-json\/wp\/v2\/media\/1155"}],"wp:attachment":[{"href":"https:\/\/lypaperchem.com\/vi\/wp-json\/wp\/v2\/media?parent=1087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lypaperchem.com\/vi\/wp-json\/wp\/v2\/categories?post=1087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lypaperchem.com\/vi\/wp-json\/wp\/v2\/tags?post=1087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}