Causes And Measures Of Positive And Negative Chromatic Aberration Of Knitted Fabrics

When knitting circular knitted fabric, the knitted fabric is usually placed inside the fabric and then dyed into the dyeing machine.

At this time, the positive and negative chromatic aberration can be thought to be caused by scouring and bleaching process and dyeing process itself.

Incomplete scouring and bleaching will cause positive and negative chromatic aberrations, which is the direct cause of dyeing results.

Recently, due to the use of small bath ratio equipment, the process of scouring and bleaching has also been gradually rationalized.

But from the point of view of effectiveness, it is ideal to use a lot of water treatment.

Therefore, we must first confirm the quality of scouring and bleaching.

When dyeing is dyed with poor dye permeability, there will be a difference in permeability between the surface that is directly contacted with the dye solution and those with less contact with the dye solution, resulting in positive and negative chromatic aberrations.

This is related to the affinity between the dyes used. The dyes which are easily dyed on the surface and the dyes which are easily dyed on the surface are shown in chromatic aberration.

The problem of affinity difference can be solved by the correct selection of dyes. However, in addition to the choice of dyes, the solubility of dyes will also be reduced when the water quality is harder, resulting in a decrease in solubility on the surface or after the addition of the oral solution.

The problem of sudden color difference is generally related to the water quality of the water used.

The choice of dyes is the key to solve these problems.

However, considering the dyeing conditions, the use of metal chelating agents or softeners in good bath effect is also an effective solution.