Tension Control in the Fabric Dyeing and Finishing Process



The dyeing and finishing multi-unit combined machine is equipped with an “elastic frame” between the units, which is used to coordinate the speed difference between the units; buffer the dynamic process to prevent the accumulation or breakage of the cloth; set the initial tension of the unit feeding cloth; and “offside” of the fault to safely stop the machine to prevent the accident from expanding. The elastic frame line speed difference adjustment device is actually a simple tension control device. When the line speed difference between adjacent units occurs, tension is generated. When it is greater than the initial tension (set by the elastic frame), the swing arm roller of the elastic frame swings down (tension roller action); when it is less than the initial tension, the tension roller swings up to adjust the speed difference between the units and maintain the fabric feeding tension around the initial tension.

When the tension frame is set between the two units and the fabric exits the rolling car and enters the flat washing tank (steam washing box, multi-cloth guide roller device), the tension setting of the tension frame only needs to set the initial tension to ensure that the fabric does not wrinkle during the flat feeding process; when the tension frame is set at the fabric exit of the flat washing tank (steam washing box, multi-cloth guide roller device), the tension setting of the tension frame for the fabric should be based on the initial tension, and the additional tension increased by the friction resistance torque during the fabric feeding process should be added. The initial tension of the fabric feeding in the multi-unit tight working condition cannot be reduced to prevent the generation of cloth guide wrinkles, and the additional tension should be controlled as small as possible to reduce the burden of the post-finishing pre-shrinkage process.
The roll dyeing and roll-up and stacking of the fabric in the dyeing and finishing process all need to be coordinated with the change of the roll diameter to implement constant linear speed operation. From the perspective of the automatic adjustment principle, no matter how large the speed difference between the two units is, or how large the roll diameter changes, it will cause fluctuations in fabric tension, which are all disturbances to the tension. Therefore, the production process needs to monitor and control the tension variable difference of the fabric on the machine.
The details can be found in https://fyitester.com/tension-control-in-the-fabric-dyeing/.

Comments

Post a Comment

Popular posts from this blog

Fiber Fineness and Tenacity Test

Image
  Test methods explanation We have tested 5 fiber samples using two solutions to test fiber fineness and tenacity: Solution 1 and solution 2. Solution 1 We use YG002C measured the fiber diameter, and YG005S tested the break force and extension. The fiber density is converted to denier from diameter using the formula. Then use the break force divide the density to get the tenacity. Please move to TABLE 1 to view the test result. We have attached YG002C parameter sheet in Appendix 1 and YG005S parameter sheets in Appendix 2. Solution 2 We use ZK100F measured the fiber density, and YG005X tested the break force, extension, and tenacity. Please move to TABLE 2 to view the test result. We have attached ZK100F parameter sheet in Appendix 3 and YG005X parameter sheet in Appendix 4. A better solution for fiber density and tenacity testing  We also have a YG005XD AUTOMATIC FIBER TENSILE AND FINENESS TEST SYSTEM, which has integrated function of ZK100F and YG005X; it is equipped wi...
Read more

Selection of materials for jigger dyeing machine parts

Image
In the textile industry, the jigger dyeing machine is a key textile printing and dyeing equipment. The selection of its main manufacturing material has a vital impact on the performance, durability, and dyeing effect of the equipment. Stainless steel is one of the most commonly used materials in modern dye jigger manufacturing, especially 304 and 316L. Material selection for each component of the jigger dyeing machine The jigger dyeing machine is composed of a frame, an electric control cabinet, a vessel/top cover, a circulation system, a dye bath, a main roller, a guide roller, a tension frame, an additional tank, a debatching device, and other parts. More details about jigger dyeing machine in our company No contact with dye solution ​ For parts that are not in contact with the dye solution, the main consideration when choosing the manufacturing material is the use environment of the equipment. Generally speaking, the environment of the dyeing factory is harsh. We recommend using 304...
Read more

Definition and Classification of Yarn Spinning

Image
  What is yarn spinning Yarn spinning is the technique of making yarn from fibers. The fibers can be wool, cotton or other natural materials, or they can be synthetic. Spinning produces a yarn that can then be used to make fabric. Types of yarn spinning Spinning can take numerous forms, but they all have the same goal: to transform fibers into yarn. Some varieties of spinning are more popular than others, but each has its own set of benefits. Woolen and cotton are the two most common forms of spinning. The process of converting raw wool into yarn is known as spinning. The yarn is generally thick and heavy since it is spun on a spinning wheel. Cotton spinning is the transformation of raw cotton into yarn. The yarn is generally thin and light, and it is spun on a spinning wheel or spinning jenny. There are also additional styles of spinning that are less common but have their own advantages. The process of converting raw silk into yarn is known as silk spinning. The yarn is generally...
Read more