Dry Strength Agents (DSAs) are a class of water-soluble polymers added during the papermaking process to enhance the mechanical properties of paper and paperboard in their dry state. Unlike wet strength agents that create chemical cross-links, dry strength agents primarily work through physical mechanisms\u2014improving fiber-to-fiber bonding and fines retention\u2014to increase strength without significantly affecting other key paper properties. They are a cost-effective means of boosting strength, allowing for the use of more recycled or weaker fibers, or reducing basis weight while maintaining performance.<\/p>\n
Addition Point:<\/strong>\u00a0Typically added to the\u00a0thick stock\u00a0(at the fan pump or before) or the\u00a0thin stock\u00a0system. Optimal location depends on the chemical and system charge. Used across a vast range of paper and board grades where enhanced dry strength is economically or functionally critical: Dry Strength Agents (DSAs) are a class of water-soluble polymers added during the papermaking process to enhance the mechanical properties of paper and paperboard in their dry state.<\/p>","protected":false},"featured_media":3160,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"%%post_title%%","_seopress_titles_desc":"%%post_excerpt%%","_seopress_robots_index":"","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":"default","adv-header-id-meta":"","stick-header-meta":"default","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-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":"","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-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":"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":""},"mobile":{"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":""}}},"product_brand":[],"product_cat":[116],"product_tag":[],"class_list":{"0":"post-2430","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-dry-strength-agent","7":"desktop-align-center","8":"tablet-align-left","9":"mobile-align-left","10":"ast-product-gallery-layout-horizontal-slider","11":"ast-product-gallery-with-no-image","12":"ast-product-tabs-layout-horizontal","14":"first","15":"instock","16":"shipping-taxable","17":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.jmchemi.com\/zh\/wp-json\/wp\/v2\/product\/2430","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jmchemi.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.jmchemi.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jmchemi.com\/zh\/wp-json\/wp\/v2\/comments?post=2430"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jmchemi.com\/zh\/wp-json\/wp\/v2\/media\/3160"}],"wp:attachment":[{"href":"https:\/\/www.jmchemi.com\/zh\/wp-json\/wp\/v2\/media?parent=2430"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.jmchemi.com\/zh\/wp-json\/wp\/v2\/product_brand?post=2430"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.jmchemi.com\/zh\/wp-json\/wp\/v2\/product_cat?post=2430"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.jmchemi.com\/zh\/wp-json\/wp\/v2\/product_tag?post=2430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nDosage:<\/strong>\u00a0Common dosage ranges from\u00a00.1% to 1.0%\u00a0(on dry fiber weight), with starch often at the higher end and synthetic polymers at the lower end of this range.
\nRetention & System Charge:<\/strong>\u00a0Performance is highly dependent on proper adsorption and retention. Effectiveness can be diminished by high levels of anionic “trash” (interfering substances) in recycled furnishes. Charge balance management is critical.
\nCompatibility:\u00a0<\/strong>Generally compatible with other wet-end additives like retention aids and sizing agents, but addition order and location must be optimized.<\/p>\n3. Typical Applications<\/h3>\n
\nPackaging Grades:\u00a0<\/strong>Linerboard, corrugating medium, folding cartonboard (to improve crush resistance, stiffness, and puncture).
\nTissue & Towel:\u00a0<\/strong>To allow lower basis weight or improve converting performance.
\nFine Papers:\u00a0<\/strong>Printing\/writing papers to improve surface strength (reducing picking) and internal bonding.
\nNewsprint & Publication Grades:<\/strong>\u00a0To compensate for the weak mechanical properties of high-yield pulps.
\nPaperboard & Specialty Papers.<\/p>","protected":false},"excerpt":{"rendered":"