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The Adhesive Component of Self-Adhesive Label Materials
- 2026-02-13 10:02:57
- admin
One component of self-adhesive label materials is the adhesive, also known as glue. The adhesive determines the label's stickiness and applicable scenarios. The adhesive is also the bonding layer between the label and the object it's applied to; its stickiness, temperature resistance, and magnetic adhesion directly affect the label's adhesion effect. It can be divided into the following categories...
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Basic Knowledge of Waterborne Polyurethane Emulsion Synthesis
- 2026-03-12 17:02:25
- admin
01 Polyurethane The structure of polyurethane is formed by the reaction of polyisocyanates (e.g., diisocyanate OCN-R-NCO) and polyols (e.g., diol HO-R-OH), where urethane segments are repeating structural units. Polyurethane structures have structures similar to amide and ester groups; therefore, the chemical and physical properties of polyurethane are between those of polyamides and polyesters. S...
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Application of Waterborne Acrylic Emulsion in Adhesives
- 2026-04-03 15:54:45
- admin
As environmental regulations tighten globally and end users increasingly prioritize health and sustainability, the adhesive industry is undergoing a fundamental shift from solvent‑based to eco‑friendly alternatives. Among the various solutions, waterborne acrylic emulsion has emerged as a leading material due to its excellent balance of performance, versatility, and environmental compatibility. Wa...
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What is the Manufacturing Process for Hot-Melt Pressure-Sensitive Adhesives
- 2026-04-03 15:56:22
- admin
If you are a manufacturer of—or a user of—hot-melt adhesives, you are well aware that while most hot-melt pressure-sensitive adhesives (HMPSAs) appear virtually identical in appearance, the specific manufacturing processes employed during their blending result in distinct sets of advantages and disadvantages. Hot-melt pressure-sensitive adhesives are complex mixtures composed of SBC (Styrene-Butad...
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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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What is the difference between polyurethane and acrylic
- 2026-04-17 19:05:45
- 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...