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Fabric shrinkage and recognition

Update:08 Oct 2018
Summary:

Shrinkage of the fabric The shrinkage of the fabric ref […]

Shrinkage of the fabric

The shrinkage of the fabric refers to the percentage of fabric shrinkage after washing or soaking. In general, the fabric with the largest shrinkage rate is synthetic fiber and its mixed textiles, followed by wool, hemp fabric, cotton fabric centered, shrinking water, and the largest is viscose fiber, rayon, artificial wool fabric. 2. The factors that cause the fabric to shrink: 1 The fabric has different raw materials and different shrinkage rates. In general, a fiber having a large hygroscopicity expands after immersion in water, has an increased diameter, a shortened length, and a large shrinkage rate. If the viscose fiber has a water absorption rate as high as 13%, and the synthetic fiber fabric has poor hygroscopicity, the shrinkage rate is small. 2 The density of the fabric is different, and the shrinkage rate is also different. If the latitude and longitude density are similar, the warp and weft shrinkage rate is also close. The fabric with high density has a large shrinkage in the warp direction. On the contrary, the weft density is larger than that of the dense fabric, and the weft shrinkage is also large. 3 The fabric yarns are different in thickness and the shrinkage rate is also different. The shrinkage rate of the coarse yarn is large, and the shrinkage of the fine fabric is small. 4 The fabric production process is different, and the shrinkage rate is also different. Generally, in the weaving and dyeing process of the fabric, the fiber is stretched a plurality of times, the processing time is long, and the shrinkage rate of the fabric with a large applied tension is large, and vice versa.

Identification

The feel of the hand-feel fabric is an important part of the quality of the fabric used to identify the fabric. Specifically, the hand feel is a psychological reaction to the feeling of touching the fabric by hand. Due to the different varieties of fabrics and the differences in quality, the hand-feeling effect of fabrics is also quite different.

The feel has the following aspects:

1. The fabric body is stiff or slack.

2. The surface of the fabric is smooth and rough.

3. The fabric is soft and hard.

4. The thickness and thickness of the fabric.

5. The cold and warm fabric.

6. The feeling of fabric irritating to the skin.

For example: the hand feels the silky product has a cool feeling; the pure wool fabric has a warm feeling; the hand feels fine and smooth, and the good fabric is mostly made of high-count yarn; the rough texture is mostly low-yarn fabric.

In short, people can also use the role of force, stretching by hand, scratching and other actions, and then through the observation of the eyes, the feeling of the hand, can judge the elasticity, strength, crease resistance and fiber type of the fabric. It seems that the feel is an indispensable means of purchasing fabrics and clothing.

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