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Calendered Fabric

Calendering is a popular product processing method in recent years, which can give the fabric a special luster. Calendering by calendering is the main processing method for textile calendering. There are two commonly used calendering equipments, one is an electric heating calender and the other is a pressure calender. The electric heating calender is also called electro-optical machine. The pressure calender has three methods: mechanical pressurization, hydraulic pressurization and pneumatic pressurization. Calendering imparts luster to the surface of the fabric, which can highlight the rich and luxurious appearance of the fabric, embodying the aesthetic appeal and personal pursuit of the wearer.

The calendering temperature, the calendering pressure, the number of calendering, the calendering speed and the smoothness of the fabric surface during the calendering of the fabric are the main factors affecting the calendering effect of the fabric. The higher the temperature, the greater the pressure and the more the number of times, the more obvious the brightness of the surface after the fabric is calendered.

After the plain, twill and satin fabrics are calendered, the surface finish of the satin fabric is most pronounced. Compared with polyester filament fabrics, cotton staple fabrics generally have a smoother surface finish after calendering. The same is the full polyester calendered fabric, the nature of the raw material itself is also very direct on the smoothness of the fabric surface. Compared to FDY filaments of the same denier, same density, and the same texture, DDY products generally have a higher surface finish than DTY products. The warp density of the fabric is also one of the main factors affecting the smoothness of the surface. The higher the warp density of the fabric, the better the smoothness of the surface. The surface cleanliness of the fabric itself before calendering will also directly affect the quality of the calendered product. If there are too many impurities on the surface of the fabric, too much hairiness, too many yarn joints, uneven yarns, etc., the quality of the calendered product will be affected.

If the temperature of the electrocalendering is too high, the texture of the chemical fiber fabric will become hard, which requires special attention during processing. In order to improve the softness of the gloss of the surface of the fabric, it is possible to adopt a calendering method in which the surface of the fabric is in contact with the surface of the fabric during calendering. The level of flatness of the fabric during the calendering through the rolling point directly affects the quality level of the product processing. In order to reduce the chance of defects on the surface of the fabric during calendering, the fabric can be suitably expanded before it enters the calendering point. The expansion of the electric edge squeezing device, the expansion of the threaded straight roller and the expansion of the bending roller are the more common methods of expansion. When the straight roller thread is expanded, the rotation speed of the expanding roller and the pressure generated by the expanding roller itself on the surface of the fabric should not be too large, otherwise it is easy to produce scratch marks on the surface of the fabric.

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