水性热熔胶及其制备方法和应用
By using a water-based hot melt adhesive with a specific composition, a strong bond between multiple layers of paper and a mesh can be achieved at low temperatures and in a short time. This solves the problems of insufficient adhesive anti-adhesion and heat-pressing penetration in the production of medical hand towels, thereby improving production continuity and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- VALENCE BONDING TECH SHANGHAI CO LTD
- Filing Date
- 2026-02-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing water-based adhesive products struggle to achieve a balance between anti-adhesion and re-heat-activated properties in the production of medical hand towels, leading to problems such as interlayer adhesion of yarn webs or weak bonding during hot-pressing lamination.
Waterborne hot melt adhesives with specific compositions, including waterborne polyurethane dispersions, waterborne polyolefin dispersions, waterborne epoxy resin dispersions, vinyl acetate-ethylene copolymer emulsions, and vinyl acetate-ethylene-vinyl chloride copolymer emulsions, achieve strong bonding between multilayer paper and mesh at low temperatures and in a short time through synergistic effects, and have good pre-coating process adaptability and easy unwinding.
Under low bonding temperature (≥120℃) and short bonding time (≥0.4s), a strong bond between multi-layer paper and mesh is achieved, solving the problems of easy adhesion after drying and insufficient hot-press penetration of ordinary glue, thus improving production continuity and product qualification rate.
Smart Images
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