(I) Shape: Irregular chicken-claw-shaped wrinkles on the surface of the finished product after dyeing
(b) Causes:
1, relaxation scouring is not enough;
2. Poor quality of processed silk raw materials;
3, the fabric density is too large;
4, too much dyeing cloth capacity;
5, the operation is not normal when dyeing;
6, the use of nozzles is not reasonable;
7. The dyeing operation is poor, the internal fabric is not evenly arranged, and the backlog is at the tail;
8, improper process design, heating too fast, rapid cooling cooling, poor dye migration caused by other reasons;
(c) Preventive measures:
1. The scouring needs to be performed under relaxed conditions, and the scouring and reducing costs are required to reach 8% or more;
2. The desizing and degreasing should be clean and the water should be cleaned;
3. Determine the dyeing quantity according to different types of face;
4, increase the dyeing ratio;
5. Prolong the cooling time, reduce the temperature from 1 to 1.5 per minute to 70 °C, and use the edge and water to drain the liquid;
6, in accordance with the thickness of the fabric to adjust the nozzle in time, the cloth through the nozzle diameter is 3/4 of the nozzle is appropriate, thin fabric can be used to double;
7, the dyeing liquid can be added to the anti-crease leveling agent 0.5-1g/2, to promote the lubrication of the fabric to reduce the chicken feet to reduce wrinkles, while improving the fabric feel;
8, non-toxic swelling agent can be used when dyeing, so that the fiber is fully relaxed, wrinkles first;
9, after dyeing the fabric using hot water drying can reduce chicken paw marks;
10. Conduct semi-finished product inspections, and find that wrinkles are severely shaped and repaired;
11. Try to increase the running speed of each lap as much as possible;
(d) Identification method:
1. Wrinkles are widely distributed, and evenly distributed is the poor effect of raw material processing. At the same time, problems can be seen from the color bars. Generally, the color bars of the processed wire are higher.
2. In dyeing a cylinder cloth, there is a wrinkle on one cloth, and the other wrinkle-free is caused by mechanical abnormality or poor operation, one goes quickly, the other goes slowly, or one cloth length and the other cloth is short.
3, there are creases of knots, is improper operation or mechanical failure, a sudden drop in temperature caused by the entire cylinder fabric wrinkles.
4, irregular wrinkles and wrinkles are not bad operation, the machine is unevenly arranged, caused by crushed dead in the tail.
5. The horizontal wrinkles of irregularly distributed arms are caused by the high temperature, the discharge of residual liquids, the lack of water, and the lack of timely cleaning.
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