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Waterborne polyurethane resin for leather top coating
- 2025-04-10 16:58:49
- admin
Leather finishing is generally divided into bottom coating, middle coating and top coating three parts. The bottom coating requires strong adhesion, hiding power, good embossing formability and stereotyping, and the middle coating further covers and corrects the color, and finally achieves the visual and physical performance requirements through the top coating. With a specific top coat, the effec...
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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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Poor Ink Adhesion on BOPP and PP Films / A Top Coating Can Help
- 2026-06-05 18:37:46
- admin
BOPP, PP, OPP, and PE films are widely used in flexible packaging, labels, and decorative applications due to their transparency, chemical resistance, and stable processing properties. However, printing on these films isn’t always straightforward. A printed surface may look fine initially, but problems can appear during tape tests, rewinding, die-cutting, or transport. Ink may peel, scratch, or lo...