Flame-retardant fabric shrink-proof finishing method

First, mechanical shrinkage
Mechanical shrinkage is an effective way to solve the shrinkage of textiles. Principle: To increase the weft and warp weaving of the fabric to a certain degree, so that the fabric has a slack structure. It is actually the potential shrinkage that caused the fabric to exist, letting it retract before it becomes a finished product. The following types of pre-shrinking machines are mainly used to achieve the purpose of pre-shrinking:
1. Super-feeding needle-stitching machine: Using the over-feeding device to stretch the fabric in a relaxed state to give the fabric a condition that can be retracted when the width is dry, so as to achieve the purpose of improving warp shrinkage.
2. Rubber blanket compression type shrink-proof machine: When the rubber blanket passes between the guide roller and the pressure roller, it is thinly stretched and will shrink and return to its original shape after leaving, forcing the fabric to shrink synchronously. It consists of a feeding device, a dampening device, a short cloth tenter, a three-roller blanket compression device, and a blanket dryer. Features: The shrinkage rate can be reduced to less than 1%, the equipment structure is simple, the pressure between the guide roller and the pressure roller can make the fabric shrink and shape more fully.
3, blanket compression type shrink-proof machine: thick blankets around the smaller diameter guide roller, the outer layer expansion, leave the original recovery, so that close to the fabric on the extension surface of the fabric shrink simultaneously, so as to achieve the elimination of fabric The purpose of the potential contraction. It is made up of five parts: feed, wet, full width, shrinkage and drying (no tension). Features: Shrinkage can be reduced to less than 2%, with full feel, soft, good taking performance.

Second, chemical methods
After the pre-shrinking process, the structure of the fabric becomes loose and the fabric shrinks greatly. Although there is no problem of shrinkage, it is easily stretched, especially for viscose fabrics, and chemical methods are required to achieve dimensional stability. The basic principle of chemical methods: Try to reduce the hydrophilicity of the fiber so that it can not be swollen in water, so that the fabric does not produce a serious shrinkage phenomenon. Mainly used resin initial shrinkage or cross-linking agent for processing, that is, the fabric after wrinkle-free finishing, at the same time there is a shrink-proof effect.

Xinxiang Yulong Textile Co., Ltd. specializes in producing all kinds of flame-retardant fabrics, flame-retardant fabrics, fluorescent fabrics, anti-arc fabrics, anti-static fabrics, anti-acid-alkali fabrics, oil-repellent waterproof fabrics, and other functional fabric manufacturers.

Flame-retardant fabrics in the prevention of fire has a good protective effect, fire-retardant overalls can effectively reduce the fire and sputter metal droplets on the human body injury - YuLong Safety