Pleat retention of textile fabrics
The extent to which the pleats (including embossing and creases) formed by ironing the fabric retain its shape after cleaningcalled pleat retention.
Pleat retention is essentially the thermoplastic nature of most synthetic fabrics a form of expression. Since most synthetic fibers are thermoplastic polymers, they can generally be heat-set to achieve various pleats and embossing required for such fibers or blended chemical fiber fabrics based on such fibers. or creases.
The degree to which the pleats (including embossing and creases) formed by ironing the fabric can retain its shape for a long time after cleaning is called pleat retention. Pleat retention is essentially a manifestation of the thermoplasticity of most synthetic fabrics. Since most synthetic fibers are thermoplastic polymers, they can generally be heat-set to achieve various pleats and embossing required for such fibers or blended chemical fiber fabrics based on such fibers. or creases.
Main factors affecting pleat retention
Basic influencing factors: the stability of the fiber structure after shaping and the inter-fiber structure stability.
1 Thermoplasticity and elasticity of fiber
Fiber with good thermoplasticity and elasticity, the fabric can form good pleats and other deformations during heat setting. Although new deformation occurs due to external force during use, once the external force is removed, it returns to its original state. The ability to pleat or crease, and emboss shapes is also better
Polyester and polyacrylonitrile fibers have good pleat durability, nylon fabric has good pleat durability, and vinylon and polypropylene have poor pleat durability.
2 The twist of the yarn and the thickness of the fabric
Fabrics with greater twist and thickness will have better pleat durability after ironing.
3 Temperature, pressure and moisture content of fabric during heat setting treatment
The relationship between fabric moisture content and pleat durability When the moisture content is very high, the crease effect will be great. If the moisture content increases, the surface temperature of the iron will drop, which will reduce the crease effect. As the iron temperature increases, the appropriate moisture content moves toward a higher level.
4 ironing time
At the appropriate temperature, when thick fabrics are ironed for 10 seconds, generally better creases can be obtained , the crease reaches equilibrium at 30s.
5 resin finishing
The pleat durability of non-thermofusible fabrics is improved after resin finishing.
AAAEHRYJUTUTHYER
Extendedreading:https://www.alltextile.cn/product/product-44-465.html
