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What Are the Common Coating Methods for Hot Melt Adhesives , Pressure Sensitive Adhesives, and Solvent-Based Adhesives
- 2026-04-10 14:36:19
- admin
1. Hot Melt Adhesives – Coating Methods Hot melt adhesives are 100% solids, require heating to melt, and solidify upon cooling. They are solvent‑free and cure quickly, making them ideal for high‑speed production. Roll Coating How it works: Molten adhesive is transferred to the substrate via a heated gravure or applicator roll. Coating thickness is controlled by the roll’s surface pattern. Applicat...
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How to Master Molecular Weight Control in Acrylic Resin Synthesis
- 2026-04-11 16:19:47
- admin
Acrylic resin synthesis is fundamentally a free-radical polymerization process, consisting of chain initiation, chain propagation, and chain termination, often accompanied by chain transfer throughout the reaction. For thermoplastic acrylic resins, controlling molecular weight and molecular weight distribution is critical. While increasing molecular weight improves the mechanical properties o...
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What is the difference between water-based and oil-based acrylics
- 2026-04-16 14:47:59
- admin
Water-based acrylics and oil-based acrylics are two distinct types of acrylics. But do you know what distinguishes them? Base Water-based Acrylic: The base for water-based acrylics is water. It is an acrylic coating that utilizes water as its solvent. Oil-based Acrylic: The base for oil-based acrylics consists of acrylic resins suspended in organic solvents. Drying Time Water-based ...
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What is the difference between polyurethane and acrylic
- 2026-04-23 15:31:36
- admin
Many people find themselves torn when selecting materials: since both are used for coatings, which one offers greater durability? Which is the more suitable choice for waterproofing during renovation? In reality, neither possesses an absolute advantage over the other; the key lies in the specific requirements of the application scenario. Today, we will clarify the core distinctions between the two...
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Classification and Analysis of Common Latex Paints
- 2026-04-23 15:32:48
- admin
Classified by Raw Materials Vinyl Acetate Latex Paint Vinyl acetate latex paint refers to a category of latex coatings produced from polyvinyl acetate emulsion, combined with pigments, fillers, and various additives. This type of coating features strong adhesion, good flow properties, and low production costs. However, it is characterized by high brittleness, necessitating the addition of external...
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Adhesive Solutions for the Printing and Packaging Industry
- 2026-04-24 17:53:09
- admin
Choose the Right Adhesive: Making Packaging Both Beautiful and Durable The aesthetic appeal and durability of printed packaging hinge on a crucial—yet often overlooked—element: the adhesive used. From the everyday shipping boxes and food packaging we receive, to high-end gift sets for tobacco and spirits, every bonded joint relies on the support of specialized adhesives. Selecting the right adhesi...
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Common Printing Finishing Processes
- 2026-04-25 16:16:03
- admin
Varnishing (Gloss Varnish / Matte Varnish) The primary difference between gloss varnish and matte varnish lies in their level of brightness. Varnishing involves applying a layer of clear lacquer over the printed surface to provide waterproofing, scratch resistance, and a high-gloss effect. It offers superior abrasion resistance and stain resistance, effectively preventing the surface ink from bein...
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Water-Based Varnish Primer for Metallized Paper – Enhance Ink Adhesion on Gold & Silver Board
- 2026-04-29 20:25:21
- admin
Water-based Clear Primer for Printing: Addressing Insufficient Ink Adhesion on Gold and Silver Cardboard The use of a water-based clear primer on gold and silver cardboard to resolve issues of insufficient ink adhesion is achieved primarily through the following mechanisms: Improving Surface Tension The surface of gold and silver cardboard is typically smooth and possesses low ...