Is the fabric made of hot melt adhesive particles and sticky velvet fabric firm? Choose the right model, bond firmly without shedding fluff

What are the difficulties in bonding velvet fabrics?

The surface of velvet (corduroy, velvet, short hair velvet, etc.) is covered with fine fluff,hot melt adhesive pelletsAfter coating, it is easy to penetrate into the gaps of the fluff instead of sticking to the base fabric, resulting in low initial adhesion and easy detachment upon light pulling. In addition, velvet fabrics are mostly made of polyester or blended fabrics, with low surface energy. The general EVA rubber particles have insufficient wettability, and the bonding effect is often not ideal.

What kind of hot melt adhesive particles are more durable for sticky velvet fabric?

The key lies in two points: ① Good fluidity of the adhesive solution, which can penetrate through the fluff layer and infiltrate the base fabric; ② The adhesion to polyester/blended fabric should be high. It is recommended to use low viscosity modified EVA or PO based hot melt adhesive particles, with a coating temperature of 170-180 ° C and an opening time of 3-5 seconds, allowing time for the adhesive to penetrate the fluff layer and reach the base fabric. Sunlife hot melt adhesive has a special model for velvet, which has been tested by multiple gift packaging factories and has a peel strength of over 3.5N/cm. It can be repeatedly bent without shedding velvet.

• The recommended coating amount is 50-65g/m ², slightly higher than that of ordinary paper materials
• Apply pressure of 0.3-0.4MPa during compression for 3-5 seconds
• When the length of the fluff exceeds 2mm, it is recommended to gently press down the fluff before applying glue

Frequently Asked Questions

• Q: What should I do if there is glue seeping on the surface of the velvet after it is glued?
  A: Excessive glue application or high temperature. Reduce the amount of glue applied to below 45g/m ², or switch to a high viscosity model to reduce penetration.
• Q: Will the velvet adhesive peel off after washing with water?
  A: EVA adhesive particles are not resistant to water washing. If water washing durability is required, it is recommended to choose PUR reactive hot melt adhesive particles. Guangzhou Sunlife Trading can provide sample testing.