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Why do small bubbles appear in the composite film?
- 2024-04-19 17:51:28
- admin
"If there are small bubbles in the complex, opaque and foggy, it will not only affect the appearance quality, but also affect the peeling strength of the complex, reducing it, which is a very bad phenomenon." 1.The surface tension of the base film is too small, the infiltration is poor, the glue is not uniform, and the space without glue is empty and bubbles are generated. The solution is to use a...
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Water based polyurethanes: properties, synthesis and application areas
- 2024-07-19 17:39:35
- admin
Waterborne Polyurethane (WPU) is a polyurethane system using water as a solvent or dispersion medium. In recent years, with the increasingly strict environmental regulations and the improvement of people's environmental awareness, waterborne polyurethane, as an environmentally friendly material, has received extensive attention and research. First, the characteristics of waterborne polyuretha...
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The processing method of fabric coating finish - polyurethane coating
- 2024-10-11 17:51:07
- admin
Fabric coating finishing is to evenly coat a layer of molecular film on the surface of the fabric to give the fabric with various functions and expand the use of the fabric. Compared with other coating materials, polyurethane coating has high tensile strength, large elongation, good elasticity, good wear resistance, heat resistance, low temperature resistance and aging resistance, and is a hi...
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Water-based Acrylic Emulsions for Paper Varnishes
- 2026-03-25 18:23:32
- admin
Leveraging their exceptional surface modification capabilities, water-based acrylic emulsions enhance both the physical properties and printability of coatings applied to paper. When incorporated into a formulation and applied to the paper surface, they form a protective film that improves surface strength, water resistance, and smoothness, while simultaneously reducing ink penetration t...
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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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What Are the Benefits of Printing Varnish in Packaging and Label Printing
- 2026-05-09 10:00:48
- admin
Printing varnish plays a multifaceted and crucial role in the post-press processing of printed materials, primarily encompassing the following points: Enhancing Visual Appeal Increased Gloss: It renders the surface of printed materials smooth and lustrous, enhancing color saturation and contrast, making images and text sharper and more striking, and thereby boosting overall visual appeal. Creating...