Interlining is an important part of clothing. After processing, the bonding between the interlining and the fabric will affect the adhesion due to different materials. Generally, the adhesion problem can be solved by meeting the following three conditions:
1. Bonding machine: There are generally two types of bonding machines: roller type and flat type.
2. Bonding conditions: Bonding conditions include bonding temperature, pressing time and pressure. There is a certain connection between the three elements when they interact within a certain range. As the temperature increases and the pressure increases, the pressing time can be relatively shortened, and vice versa. If the temperature is too high and the pressing time is too long, it will easily destroy the performance and color of the fabric, and it will also easily cause glue penetration. If the pressure is too high, it will easily destroy the appearance of the fabric (especially light and thin fabrics).
3. Selection of bonding conditions: Before being put into mass production, the bonding conditions must be repeatedly tested to determine the best process conditions (when testing small samples, the lining cloth supplier should provide bonding conditions for reference).
After the interlining is bonded to the fabric. Peel it off. If the hot melt adhesive is evenly distributed on the lining and fabric, it means the bonding conditions are appropriate. Otherwise, the test should be repeated. After bonding, the cloth surface should be smooth, without wrinkles, bubbles, or glue leakage. After bonding, peeling strength, dry cleaning, and water washing performance tests must be carried out. The test results must meet the production requirements. The bonding effect must meet the style and feature requirements of the clothing.