Dyeing is a very tedious and complicated process. Differences in the printing and dyeing process can lead to large and small flaws in the finished fabrics. It is really time-consuming and labor-intensive to regain all the problems. If the problem is big, it may involve your own interests. The reason for dyeing OK rate is very necessary. In summary, the following eight factors affect the dyeing OK rate.

Effect of dye

1, different batches of dyes have a bad appraisal, every time you enter the dye to test the batch difference;

2. Storehouse dyes are improperly stored and managed, resulting in dye ups and cross-talk;

3. Improper management of mother liquor life in the laboratory, not replaced on time;

4. The concentration of the dilution ratio of the mother liquor in the laboratory is poor, and the manual pipette is not properly controlled;

5, select compatible dyes, in the fight color process, there is competition phenomenon, resulting in color before and after.

Effect of additives  

1, pay attention to the difference of different batches of additives, in addition, attention to stirring when taking the barrel of auxiliary agent;

2. Different dosages of additives can cause shade changes and final fixing amount. Attention should be paid to the control of the amount of additives between laboratory sample and workshop production.

Gradient caused by grey cloth  

1. It is necessary to match the grey cloths produced by the large goods with the batches produced by large goods.

2. Samples of gray fabrics are stored for a long time, and are affected by moisture or gas, resulting in large and small samples. Laboratory fabrics should be changed frequently and wrapped in a film, which is completely separated from the dyeing materials in the laboratory and protected from the influence of bad gases.

Color difference caused by process conditions

1. The workshop production must strictly implement the process issued by the laboratory.

2, bath ratio, dyeing (insulation) time, dyeing pressure has an important influence on the color. Dyeing bath ratio is different, the difference of shade is obvious. When the dyeing (incubation) time is prolonged at a certain temperature, the dye uptake will increase significantly.

The effect of finishing on color light

1, the laboratory and the workshop after finishing are not uniform, different finishing processes have different degrees of influence on shade. For example, the temperature control, the use of fixing agents, will seriously affect the color light results.

2. There are differences between the laboratory and the workshop finishing, and no corresponding adjustment has been made.

Effect of water quality on color difference

1. The quality of the water used to make a sample is the same as the quality of water used in a large production.

2. Water quality in different periods may contain differences in impurity components and contents, PH value and hardness. These differences will also cause color differences. For light and white color, soft water should be used as much as possible to reduce the impact of water quality.

Machine equipment influence  

1. Weighing accuracy is not enough. Weighing scales used by laboratories for a long time have poor accuracy, especially for small samples. The effect of errors on large samples is even more pronounced.

2, dye cylinder instrument is not accurate instructions. Including the malfunction of the instrument, the instrument did not correct as required, and the pressure leaked.

Human influence  

1. The employee's operation did not follow the regulations. Here mainly refers to the need to cultivate the staff's sense of responsibility and conscience, while maintaining the stability of the staff (proficiency level related to experience and technology accumulation, minimizing errors).
2. It involves all aspects of human resource management issues.

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