Problems And Solutions Of Yin And Yang In Outdoor Fabrics

The problem of Yin-Yang color is a problem often encountered in the operation of fabrics in the first 10 years of the factory. In 2007, the Nike fabric orders in Taiwan funded factories were nearly 800 thousand meters, with more than 60 million dyed fabrics, and more than ten thousand meters of golf colored cloth.

These problems have been encountered several times, and the solution is to cut them out in a piecewise manner and separate them into volumes. This time, in the past ten years,

First, what causes the problems of yin and Yang in outdoor fabrics?

There are basically the following points:

1. Sometimes the yarn entered in the weaving mill is not the same batch of yarn. It can be woven together and dyed with Yin and Yang.

2, pretreatment: large cargo grey cloth pretreatment is not clean, or inadequate treatment, will lead to large fabric dyeing process, fabric uneven dye absorption, will produce Yin and Yang color problem; in addition, dyeing process added levelling agent too little or excessive, will also have an impact.

3, flat cylinder dyeing: also called cylinder or cylinder dyeing machine, Taiwan enterprises called BM cylinder dyeing: in the dyeing process, due to the operation of tension, dye solution, temperature and other operations, if the operation is not standardized, especially sensitive colors, there will be Yin and Yang sometimes, especially the nylon four ball series in the flat cylinder dyeing process is most likely to appear in the left, right, middle side, yin and Yang color, or even a section of chromatic aberration.

4, overflow cylinder dyeing: also known as inclined tube dyeing, it is often said that overflow cylinder dyeing will appear Yin Yang color, but in reality, there is a relatively small probability, it can not be said that no, but also because of the uneven dyeing of fabric in the process of uneven color, I will have a bad color, sensitive colors such as brown, army green, deep khaki, dark gray, grass green will also appear Yin and Yang color problem;

5. Abrasive fabric: in the process of grinding, the grind and grind of the grinder is on the cloth surface. The strength of the left and right sides is not consistent, and there is a weight difference between them. During the dyeing process, the color of the cloth surface is not consistent with the dye molecules, and the Yin and Yang color will also appear.

6, calender: coating, film fabric, as long as it is not elastic cloth and very light fabric, the general fabric will adopt calender technology, roller press left and right side of the pressure is not consistent, press out of the big cloth, will also appear edge color difference, this situation appears less.

Two. The solution to the color and color of outdoor fabrics

1. Starting from the source of the weaving mill, it is generally recommended that the same weaving of the same batch of yarns should not be mixed with another batch of yarns.

2, the beginning of control, the pretreatment process must be sufficient, the dyeing process specification, dye is divided into two kinds, one is powder, one is granular, and the dye is heated by hot water, and then it must be filtered through the filter screen to remove impurities from the dye, so as to prevent impurities from causing dyed coloured dots and coloured flowers. In the dyeing process, the flow of large cloth and water, levelling agent, dye solution, heating, time, fixing and reducing washing process are strictly controlled to reduce the occurrence of problems.

To prevent the emergence of yin and Yang color, convenient repair, if added waterproof, after stripping the cloth easy to spend, then dyed very difficult), each roll of cloth cut the head and tail of two bars, width 12-20CM, stacked into the left and right, in the bar, the number of the roll, length, head and tail and other information, each cylinder cloth placed under a row of bright lights or D65 lights, see whether the cylinder cloth has head and tail color difference, left middle right Yin Yang color, the US standard gray card (AATCC GREY CARD) 4.5 class A, must not use computer color measurement data to judge, computer color measurement often exists blind area, can not accurately judge the actual gap between yin and Yang; 3, the large size dyed fabric is best made of finer cloth.

This method is the most effective way to prevent Yin and Yang color problems. As a qualified quality inspector, we must put all the bulk goods and ends of each cylinder together to check whether there are Yin Yang color, edge difference and difference. This working detail requires very patient and meticulous people to do so. The quality inspectors who have similar and careless thought are not suitable for this meticulous work.

4, if we find the following problems, we should take the following measures:

(1) the difference between yin and Yang in the margin is to pick it out. If the color is deep, it can be stripped of color and dyed into medium dark color. Or the light color is directly dyed into medium dark color. The precondition must be changed to dye the small color sample, and the color can be changed before the big goods can be dyed.

(2) head and tail color difference: take open cut processing, put the cloth on the cloth inspecting machine, take a strip from the beginning, check the edge edge color, until the color can not reach the AATCC GREY CARD level 4.5, immediately cut out and separate it into a roll, the cloth is grade A, and the remaining color does not match for degradation.

(3) inter segmental chromatic aberration: it is also used to take a piece of cloth at the top of the cloth and check the edge edge color until the color reaches less than AATCC GREY CARD 4.5.

(4) deviation problem: there are 15 rolls of cloth in the same cylinder, of which 5 rolls are of different colors. If there is a 4 grade for the AATCC GREY CARD of the confirmation cylinder, the cylinder can be processed by dividing the cylinders into two cylinders, which is convenient for the cylinder cutting of garments and will not make the clothes have Yin Yang color problems.

5, finishing finishing process: after dyeing cloth is finished, there is no yin-yang color. After finishing coating and film, it should be calender (elastic fabric and very light fabric). The pressure of the large roller of the calender should be adjusted to uniform, so as to avoid and reduce the appearance of yin and Yang.

6, the tailoring of garment factories cut out the rows of yin and Yang marks. If the above details are not in place, the bulk goods can not be repaired. The clothes can be arranged with the clothing factories. The same part of a garment will be cut together. This will increase the workload of the garment factory and modify the pattern. If it is not a long-term cooperative garment factory, the general garment factory will not promise to do so.

7, clothing repair color: large cargo coating, the finished product after the emergence of yin and Yang color problems, or clothing factory bed mark rack row or Yin Yang color, or clothing factory mixed cylinder mixed batch cutting, the same Yin Yang color problem;

The most helpless way to do this is to make clothes and color, which is a technology that has been developed in Japan. The fabric is of large size and is not easy to repair. It is necessary to make a garment and then repair it. It is necessary to examine the color of each piece of clothing and make up the color difference. The color of the lighter part is made into the color of the dark part. The technology of the garment repair is imported from Japan, but the color fastness is very good, but it is not recommended to use this. This will lead to the high cost of repairing the clothing and the cost of the fabric, and the cost of the fabric will increase greatly. The most important problem is in the dye factory and other sources.

8, rigorous quality, such as thin ice, as long as every detail in place, in order to avoid and reduce the occurrence of problems.

The most important source of yin and Yang color for outdoor fabrics is in dyeing factories.

It can reduce and prevent the problems of subsequent large goods.

Too many factories in the Yangtze River Delta include some famous Japanese funded and Taiwanese funded enterprises. If you do not ask him to provide the head and tail of each roll, you may not take the initiative to cut the big goods, but it does matter to the middle and the right, the head, the tail and the difference of the whole batch.

Of course, the problem of yin and Yang does not always appear. However, careful quality and meticulous ice skating can really reduce and avoid the occurrence of many product problems. This is the meticulous work of fabric companies and fabric quality workers.