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Shrink-proof finishing of fabric

Views: 0     Author: Site Editor     Publish Time: 2021-06-14      Origin: Site Inquire

[Mechanical pre-shrinking]: It is an effective method to solve warp shrinkage


Principle: Increase the weft density and warp shrinkage of the fabric to a certain extent, so that the fabric has a loose structure. In fact, it is to make the latent shrinkage that originally existed in the fabric, before it becomes the finished product, to retract it in advance. The following equipment (pre-shrinking machine) is mainly used to achieve the purpose of pre-shrinking.

 

1. Over-feed pin tenter: Use the over-feed device to stretch the fabric in a relaxed state, and give the fabric the condition that the warp direction can be retracted during the fixed-width drying, so as to achieve the purpose of improving the warp shrinkage.

 

2. Rubber blanket compression shrink-proof machine: When the rubber blanket passes between the guide roller and the pressure roller, it is thinned and stretched, and after leaving it, it shrinks and returns to its original shape, forcing the fabric to shrink simultaneously. It consists of a cloth feeding device, a wetting device, a short cloth clip stenter, a three-roll rubber blanket compression device and a blanket dryer. Features: The shrinkage rate can be reduced to less than 1%, and the equipment is simple in structure. Due to the pressure between the guide roller and the pressure roller, the fabric shrinks and sets more fully.

 

3. Blanket compression shrink-proof machine: When the thick blanket goes around the smaller-diameter cloth guide roller, the outer layer expands and returns to its original shape when it leaves, so that the fabric close to the extended surface of the blanket shrinks synchronously to eliminate potential shrinkage. the goal of. It is composed of five parts: cloth feeding, wetting, whole width, shrinking cloth and drying setting (no tension). Features: The shrinkage rate can be reduced to less than 2%, the hand feels plump and soft, and it has good wearing performance.


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