Why can hot melt adhesive become the 1 popular adhesive for Velcro products?

2026-07-20 15:35:18

The development of industrial production has put forward higher and higher requirements for adhesives, which can not only be used more conveniently, but also put forward a higher requirement for the safety and pollution-free standards of adhesives. Hot melt adhesives can meet the capacity requirements of these two aspects, so they have been rapidly developed in China. In recent years, Velcro (Velcro) has been widely penetrated into human daily life, and the use in the market in recent years can be said to be fully blooming. The most common application markets are packaging, such as the automotive industry, doors and windows (screens), clothing, shoes, luggage, household goods, furniture, stationery, transportation, medical equipment, sports equipment, construction, etc. The hook and loop fastener can easily be sewn onto most fabrics. However, for metal, glass, concrete, wood, ceramics, hard plastic and other objects that cannot be sewn, an additional layer of pressure-sensitive adhesive is required for bonding. Solvent-based, water-based and hot-melt pressure-sensitive adhesive or double-sided adhesive tape can be applied to the fastening tape. However, hot melt pressure sensitive adhesives have become the most popular 1 adhesives due to the following advantages. 1. Green environmental protection, environmental protection adhesive: no poison and taste, no environmental pollution substances, in full compliance with national safety standards. 2. Good initial adhesion and reduced gluing amount: good initial adhesion and relatively common glue water in the market can reduce gluing amount and save costs. 3. Stable performance, high temperature and low temperature: good adhesion at high temperature and low temperature, good adhesion at low temperature, no loss of adhesion, no degumming, smooth application. 4. Suitable materials: Velcro should be used widely in normal life, and the adhesive used needs to be adapted to some materials. 5. Gluing method: There are many ways to glue hot melt pressure sensitive adhesive. No matter in which 1 kinds of glue, hot melt pressure sensitive adhesive must be pre-heated in the melt glue tank into a molten state, and then the hot melt pressure sensitive adhesive is directly sprayed or transferred to the substrate or adhesive with appropriate glue equipment. The viscosity of hot melt adhesive is divided into early viscosity and late viscosity. Only when the early viscosity and the late viscosity are consistent can the hot melt adhesive and the object be kept stable. In the production process of hot melt adhesive, it should be ensured that it has oxygen resistance, halogen resistance, acid and alkali resistance and plasticity. The material of the object is different, and the viscosity of the hot melt adhesive is also different. Therefore, different hot melt adhesives should be selected according to different materials. Hot melt adhesive is a chemical adhesive with outstanding advantages such as environmental protection, safety, rapid curing and suitable for automatic production. In particular, China's emphasis on environmental protection and low-carbon energy saving in recent years has been increasing, and more and more industries have begun to use hot melt adhesives.