4.It is difficult to solve the problem of color difference by traditional cotton blending method(1) according to the research and production experience of many foreign experts, some defects in yarn, s......

3.4 control of rungs caused by twist difference in spinning processIn the spinning process, if the equipment foundation management and operation are not good, the spindle speed will be different, resu......

3. The control of the factors that produce the rung in the spinning process3.1 establish the system of chemical fiber inspection and raw cotton gradingBefore using all kinds of chemical fiber material......

1 PrefaceKnitted fabric has the characteristics of soft texture, moisture absorption, air permeability, elasticity and drape. Knitted clothing is comfortable, close fitting, unrestrained, free and fas......

6 irregularityThe unevenness index includes the weight unevenness index and the sliver evenness index. The general spinning factory pays more attention to the unevenness index, and the monitoring leve......

5 average strength and strong weak ringSome quality problems in spinning, such as hairiness, nep, different fiber, strong weak ring and immature fiber content percentage, are all important problems th......

4 hairiness(1) the main process of generating hairiness is spinning. There are two places that have the most influence on generating hairiness on spinning frame. The first is the spinning triangle are......

3 immature fiberImmature fiber: refers to the cotton fiber with thin cell wall, large lumen, no twist, and partial ribbon fiber.(1) because the dyeing performance of immature fiber is different from t......

2 heterosexual fiberThe concept of heterosexual fiber refers to other fibers with different dyeing properties from cotton fiber, such as wool, hemp, silk and chemical fiber. Mixed with these different......

Some quality problems in spinning, such as hairiness, nep, different fiber, strong weak ring and immature fiber content percentage, are all important problems that directly affect yarn quality, fabric......

The peak season of the textile market will be two months ahead of time relative to clothing. We textile workers should be in the pre-order preparation work now. However, the recent international situa......

1. Different raw materials:Nylon yarn is made of nylon yarn twisted together; PE yarn is made of poly-stranded chemical fibers woven with dipping gum; carbon yarn is made of resin with fluorine and ca......

 If the air suction of carding is not good, the air flow of carding is disordered, the internal chaotic fibers and short fibers in sliver are more, and the drawing distance is not appropriate, the fi......

III. Yarn hairiness mainly occurs in spinning and grooved drum processes1.The influence of spinning process on hairiness Spinning is the key process of spinning.The quality of spinning equipment has a......

The yarn hairiness problem has the following phenomena:1. The overall value of hairiness is high and the fabric surface is not clear, which seriously affects the dyeing effect.2. The CV value of feath......

I. Basic SurveyYarn hairiness is formed by exposing fibers to the surface of the yarn body during yarn forming. Cotton yarn is formed by twisting and coagulating one short fibre after another. It is i......

2.1.2.4 RatingIf the control cloth has yellowed, it shows that phenolic compounds and NO2 exist simultaneously, and they are in contact, so the test is successful. The yellowing degree can be evaluate......

1.  Edidafa cuts the cloth into 50 mm *70 mm size, then clamps it in the middle of the filter paper, then places the sample filter paper in two pieces of glass, and adds a certain pressure to make th......

1.4 Oil AgentOil is used in sewing thread production to improve the spinnability and sewing performance of yarns. But these oils can yellowing the sewing thread. Unsaturated paraffin spinning oils ads......

The so-called yellowing of sewing thread refers to the yellowing of sewing thread itself and caused by oxidation and destruction in the process of production, storage, circulation or use. Once the sew......