Pressing process: precise control is the key to ensure the bonding effect of non-woven interlining

In the production and application of non woven fusible interlining, the pressing process plays a vital role. The three parameters of pressing temperature, pressure and time must be strictly controlled to ensure the best bonding effect. At the same time, the requirements for pressing conditions between fabrics of different materials and non woven fusible interlinings are different, so it is particularly necessary to conduct small sample tests to determine the best process parameters.

Pressing temperature is one of the key factors affecting the bonding effect. Too high a temperature may cause the interlining to melt excessively, destroy its internal structure, and affect the bonding strength and durability; while too low a temperature may not fully melt the adhesive and achieve the ideal bonding effect. Therefore, in actual operation, the pressing temperature must be accurately set according to the material and fabric characteristics of the interlining. For example, for some special fabrics, the pressing temperature may need to be lowered to avoid damage to the fabric.

In addition to temperature, pressure is also an important factor affecting the bonding effect. Appropriate pressure can ensure close contact between the interlining and the fabric, allowing the adhesive to fully penetrate into the fabric fibers, thereby improving the bonding strength. However, too high pressure may deform or damage the fabric, affecting the appearance and quality of the final product. Therefore, when setting the pressing pressure, the bearing capacity of the fabric and the adhesive interlining must be comprehensively considered.

Pressing time should not be ignored either. If the pressing time is too short, the adhesive may not be completely melted and penetrate into the fabric fiber; if the pressing time is too long, the adhesive interlining may be over-melted, affecting the bonding effect and durability. Therefore, determining the appropriate pressing time is crucial to ensure the bonding quality.

Given that fabrics and non-woven adhesive interlinings of different materials have different requirements for pressing conditions, it is particularly important to conduct small sample tests. Through small sample tests, the changes in the bonding effect under different pressing conditions can be intuitively observed, so as to determine the best process parameters. This can not only improve production efficiency, but also ensure the quality and stability of the final product.

When conducting small sample tests, the following points should be noted: First, representative fabrics and adhesive interlinings should be selected for testing; second, a reasonable pressing temperature, pressure and time range should be set to ensure the accuracy and reliability of the test results; finally, the test results should be carefully analyzed and summarized to determine the best process parameters.

The pressing process plays a vital role in the production and application of non-woven fusible interlinings. In order to ensure the best bonding effect, the three parameters of pressing temperature, pressure and time must be strictly controlled. At the same time, for fabrics and fusible interlinings of different materials, small sample tests should be carried out to determine the best process parameters. Only in this way can high-quality products that meet market demand be produced.