Silk fabric jig dyeing and light color elimination technology

Abstract

The invention discloses a silk fabric jig dyeing and light color elimination technology, and belongs to the technical field of jig dyeing. The technology comprises the following steps: 1, adding dye liquor into a dye vat, and warming the dye liquor to 55-65 DEG C; 2, rolling silk fabric onto a jig dyeing machine; 3, setting the overall length of the silk fabric to be S, a machine speed to be a, and an overall number of jig dyeing times to be b, wherein during each time of jig winding, when jig winding is performed to the length of 0-20%S, the machine speed is 75-85%a, when jig winding is performed to the length of 20-80%S, the machine speed is a, and when jig winding is performed to the length of 80%S-S, the machine speed is 75-85%a; and 4, ending dyeing, draining the waste dye liquor, washing the fabric with water, and drying. According to the silk fabric jig dyeing and light color elimination technology, the acquired silk fabric is uniform in dyed color and accordant in hand feeling,the problem that the head and the tail of the silk fabric has chromatic aberration is solved, the silk fabric with uniform dyed color can be acquired by jog winding once, without complementing colorsubsequently.

Description

technical field [0001] The invention discloses a jigger dyeing and lightening process of silk fabrics, which belongs to the technical field of jigger dyeing. Background technique [0002] Fabric open-width jigger dyeing is a dyeing process with a long history, which is very suitable for satin-like fabrics that are easy to crepe. There are many kinds of fabrics suitable for jigger dyeing, such as cotton, polyester, silk and blended or interwoven fabrics. It is especially suitable for jigger dyeing on cotton / brocade, silk and satin fabrics that are easy to crepe. Jiggers can be used for desizing, scouring, bleaching, dyeing and washing processes. [0003] The applicant found the following problems in the research: In the existing process, in order to improve production efficiency and reduce waste water discharge, multiple pieces of fabric (1 piece is about 80-100 meters) are continuously sewn together to form a continuous, The fabric with longer length is then jigger dyed o...

AI Technical Summary

Problems solved by technology

[0004] At present, after the problem of head-to-tail color difference occurs, it is often used to cut the color difference fabric, put it on the jigger again, and jigger and dye the complementary color again; this remedy method of re-jigging the complementary color, because the color difference fabric itself has a certain color, it is jiggered again The dye liquor ratio and process parameters all need to be redesigned during color replenishment, which will not only increase waste water discharge, waste dye, time-consuming and labor-intensive, but also make color complementation difficult and difficult to succeed in color complementation

[0005] In the prior art, there is heating and temperature control of the roller shaft to reduce the temperature difference between the roller shaft and the dyeing liquor to alleviate the problem of color difference between the head and the tail, but when the length of the fabric is long (over 1000 meters) and the roll diameter is too large When the fabric is wound on the roller shaft, the thickness reaches 10~20cm, and there will be a temperature difference between the fabric near the roller shaft and the fabric far away from the roller shaft. This temperature difference cannot be completely resolved even by heating the roller shaft.

In the prior art, there is still the problem of alleviating head and tail color difference by means of frequency conversion jiggers, but the actual effect is not ideal. The applicant found that the existing roller shafts start at "0 speed - reach constant speed", "constant speed - 0-speed stop” is a variable-speed movement in the two processes, and the variable speed will bring about the problem of uneven dyeing, which is difficult to completely solve even with frequency conversion dyeing jiggers

Moreover, both of the above two existing solutions require large-scale changes to the dyeing jigger, or even purchase new dyeing jigger equipment, which is extremely expensive and cannot be applied to actual production