Notes on the Causes of Nonuniform Color of Nylon Yarn Dyeing

Dyeing with the same specification (210D/12 strands) nylon, one by steam shaping, one by natural setting, using steam as the line is thicker (fixing temperature is 80 degrees for 15 minutes, evacuating 3 times), the result is using steam shaping The dyed out color is not uniform. Natural stereotypes do not produce such phenomena.

solve:

Steam setting: Due to the large humidity, the dye at 80 degrees of water vapor, acid dyes, water-soluble dyes, migration is serious, there will be color phenomenon, it is recommended to change the hot air stereotypes, or to prevent the migration agent, the first pre-baking.

Another: drum dyeing uneven phenomenon:

1, first of all have to look at whether it is a problem of drying, the method is simple: after dyeing the cylinder carefully, the yarn can be cut to see if the dyeing itself is not uniform, if it is uneven dyeing, can strengthen the pre-processing and dyeing plus Penetrants promote staining!

2. If it is a problem that occurs during drying, it is recommended to use anti-migration agent.