1. wash stuffy Reasons: The color-removing and multi-washing process is not reasonable. The sewage concentration in the washing tank is high, and the fixing and desizing temperature is too high and the time is too long. Prevention methods: formulate scientific and reasonable washing process according to dye performance and equipment conditions, wash water flow exchange speed quickly, add appropriate amount of anti-staining agent as appropriate. Fixing and desizing temperature and time should be reasonably controlled. 2. Take color Reason: The dye has poor fastness. When the rope is washed, the laitance is not removed, that is, the temperature rises. The flat washer enters the fabric and wrinkles. The reducing agent is not completely decomposed in the steaming process and continues to decompose during washing. Prevention methods: dyes with poor fastness should be washed in flat washers, dried immediately, not stacked. The cold water time grows to remove the floating color on the surface of the fabric, and the flat washer enters the open width on both sides of the fabric. Wash tank with appropriate amount of oxidant. 3. Gray injury Cause: The rope speed is too fast and takes too long. Prevention methods: silk printing silk washing should use flat washer. If a rope washing machine is used, the speed changes. 4. Stain stains Reason: Desizing is not clean. Prevention measures: The temperature of the auxiliary agent is properly increased 5 solid color stains Reason: Solid color desizing with the bath, enzyme powder directly added to the water is not evenly dispersed, fixing agent to form a suspension adhere to the fabric surface. The tannic acid - vomiting stone is fixed, when the four walls of aquatic plants are not washed, or when the same bath is used to fix the color, the tannins are rusted. Unclear water after fixation Prevention methods: Enzyme powder is first added with salt water and then added to the washing tank. Do a good job of cleaning and use plastic products. After immersing in tannic acid, a clean water was poured and then the stone was soaked. After fixing, cold water is needed. 6. Soap stains Cause: The hardness of the water when using industrial soap soaps forms calcium soap or magnesium soap sticks on the surface of the silk. Control measures: This hard water resistant surfactant is used. A small amount of soda ash is added to industrial soap. Add appropriate amount of sodium hexametaphosphate. 7. Stains: Cause: The stains on the walls of the washing tank adhere to the surface of the silk or silk. Prevention measures: wash the tank to do a good job on the four walls, roller wash clean. 8. Rotary screen printing Reason: Due to stopping halfway, the silk is covered in the outer layer of the plum cage for a long time to form a pressure stamp. Prevention measures: carefully check the flat washer before production and troubleshoot. A silk-printed silk fabric was immersed in a dilute acetic acid solution for a few minutes and then subjected to hot air tentering. 9. The color fastness does not meet the standard Causes: Improper selection of fixing agent and fixing conditions, poor fastness of dyes, and soap washing or reducing washing do not meet the requirements. Prevention methods: Reasonable choice of fixing agent and fixing conditions, strengthening fixing or soaping or reducing conditions, etc. Strictly implement technical procedures. 10. Color change Cause: Improper choice of fixing agent, high fixing temperature, high oxidant or other additives or improper selection. Prevention methods: According to the dye performance to select the appropriate fixing agent. Fixing agent temperature should not be too high, according to process conditions. Reasonable choice of additives, control and use of the process conditions. Do not change the color as the premise. Â Xiao Bian hard data word by word so hard to break out of the ~ ~ ~ we quickly covered up it ~ Stay tuned for more Chinese fabric net. Women'S Sweatshirt,Women'S Casual Sweatershirt,Casual Round Neck Sweatshirt,Oversized Sweatshirts Hoodie Shaoxing Weihui International Trade Co.,Ltd. , https://www.weihui-fabric.com
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