Measures to reduce fabric shrinkage

1. Minimize the tension during the bleaching process.

2. In the dyeing and finishing process, all wet cloth drying is to apply tension as much as possible, reduce the elongation to avoid excessive narrowing of the width of the door, if the machine is open-width continuous baking machine, a small capacity cloth box should be installed after the opening. Then insert into the cloth frame to avoid excessive tension between the opening and the rolling water.

3. In the mercerizing process, it is necessary to grasp the tension of the widening of the fabric to maintain the width of the fabric and pay attention to controlling the weft tension.

4. Each process of flat washer guide cloth stick. Rolling sticks, drying cylinders should be strengthened to ensure the smooth and smooth maintenance. Avoid wrinkles when the tension is relieved. Wrinkle the guide rollers in the water tank to run freely. The difference between the line speeds of the roller drying cylinders before and after the same machine should not be too large. The tension should be controlled during the segmentation process of the long platform. There is a tight adjustment of the landing gear or segmented transmission adjustments to control the tension.

5. Mercerized products should strictly control the tension in the subsequent processing process because mercerizing and then stretching the shrinkage rate in the actual production operations in various processes can be developed in the semi-finished products in the breadth of the target table cloth In order to measure and assess, after the order to the pre-process acceptance to ensure the width of the semi-finished products should be.

6. Manual tension control is required for some mechanical motion tensions. Strict process operations, enhanced process operations, enhanced mechanical cleaning and reduced running tension effectively reduce fabric shrinkage.

7. To strengthen the inspection of mercerized processing conditions, conditional dyeing plants can be combined with straight rolls and fabrics with mercerizing.

8. After the shrinking rate of the larger species: such as khaki, gabardine poplin fabric to pre-shrinkage treatment, reduce shrinkage. These varieties are in tight processing. Only by relaxing the tension on the machine, the best shrinkage rate is as high as about 4%, the shrinkage should be used to reduce the further reduction of pre-shrinkage, shrinkage after the product has not only decreased shrinkage. At the same time can also get a good feel, the lines are clear and soft.

9. For varieties with large weft shrinkage rates, some fabrics have an unreasonable width of the fabric. Even if the processing conditions are reasonable, there are still large weft shrinkage rates. The shrinkage rate of poor processing conditions is greater, and further improvement measures must be taken. Silk mercerty varieties to ensure that the width of the fabric to meet the requirements. In addition, it is also necessary to improve the specification of the grey fabric and widen the width of the grey fabric without increasing the cost or increasing the cost, so as to ensure that the weft shrinkage rate falls within the required range.

10. For the polyester-cotton synthetic fiber blended fabrics, we must grasp the qualitative mercerization process and operation to better control the shrinkage rate.

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