8 major factors affecting the dyeing OK rate
The influence of dye
1. Different batches of dyes have batch differences, and each batch of dye must be tested for batch differences;
2. Improper storage and management of dyes in the material room, causing dyes to become damp or color-crossed;
3. The life span of the laboratory mother liquor is improperly managed and not replaced on time;
4. The dilution ratio and concentration of the dye mother liquor in the laboratory are not good, and the manual Improper handling of the straw;
5 , Choose dyes with close compatibility. During the color matching process, there will be dyeing competition, resulting in color differences between the front and back.
Influence of auxiliaries
1. Pay attention to the differences between different batches of additives. In addition , pay attention to stirring when taking out each barrel of additives;
2. Different dosages of additives will cause changes in color finish and final color fixation. Pay attention to the control of the dosage of additives between laboratory samples and workshop production.
Color difference caused by natural cotton cloth
1. The natural color cotton for the sample should be the same as the large one. The cloth produced by the goods is consistent with the batch.
2. Make a sample Natural cotton cloth has been stored for a long time and is greatly affected by moisture or gas, causing color differences between large and small samples. The natural cotton cloth in the laboratory should be changed frequently and wrapped in film to completely separate it from the dyeing materials in the laboratory to avoidAffected by bad gas.
Color differences caused by process conditions
1. Workshop production must strictly implement laboratory orders craftsmanship.
2. Bath ratio, Coloring (warming) time and coloring pressure have an important impact on coloring. The difference in color finish is obvious if the coloring bath ratio is different. Prolonging the coloring (heat preservation) time at a certain temperature will significantly increase the amount of dye.
The impact of finishing on color finish
1. Behind the laboratory and workshop Finishing is not uniform, and different post-finishing processes have varying degrees of impact on the color finish. For example, the control of temperature and the use of color fixing agent will seriously affect the color finish.
2. Laboratory and There were differences in post-workshop finishing and no corresponding adjustments were made.
The effect of water quality on color differences
1. Water quality used for making small samples and large-scale production The water used must be of consistent quality.
2. Different periods There may be differences in water quality, impurity composition and content, PH value, hardness, etc. These differences will also cause color differences. For light colors and white ones, use soft water as much as possible to reduce the impact of water quality.
Influence of machinery and equipment
1. The weighing accuracy is not enough, and the laboratory weighing balance is used If the accuracy is poor over time, especially when weighing small samples, the error will have a more obvious impact on large samples.
2. The dye vat instrument is not Precise instructions. Including instrument failure, instruments not calibrated as required, air pressure leakage, etc.
Man-made influence
1. The employees’ operations were not carried out in accordance with regulations. This mainly refers to cultivating employees’ sense of responsibility and conscience, while maintaining employee stability (proficiency, experience and technology accumulation are related to minimizing mistakes), etc.
2. Involves all aspects of human resources management issues.
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AAAace=”boldbody”>1. The weighing accuracy is not enough. The laboratory weighing balance has poor accuracy after being used for a long time. Especially when weighing small samples, the error will have a more obvious impact on large samples.
2. The dye vat instrument is not Precise instructions. Including instrument failure, instruments not calibrated as required, air pressure leakage, etc.
Man-made influence
1. The employees’ operations were not carried out in accordance with regulations. This mainly refers to cultivating employees’ sense of responsibility and conscience, while maintaining employee stability (proficiency, experience and technology accumulation are related to minimizing mistakes), etc.
2. Involves all aspects of human resources management issues.
AAAFGHTYHCGER
Disclaimer:
Disclaimer: Some of the texts, pictures, audios, and videos of some articles published on this site are from the Internet and do not represent the views of this site. The copyrights belong to the original authors. If you find that the information reproduced on this website infringes upon your rights, please contact us and we will change or delete it as soon as possible.
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