Mixed color spinning achievement method and device based on four primary color CMYK rough yarn coupling drafting

Abstract

The invention discloses a mixed color spinning achievement method and device based on four primary color CMYK rough yarn coupling drafting. The method and device specifically comprise that a drafting and twisting system includes a front roller, a middle roller and a post-combination roller arranged front and back; the post-combination roller has four rotary free degrees, and includes a first rear roller, a second rear roller, a third rear roller and a fourth rear roller arranged in parallel on the same rear roller shaft; the speed V[q] of the front roller is kept constant, the speeds of the first rear roller, the second rear roller, the third rear roller and the fourth rear roller are adjusted, and then the color matching of yarn is achieved; during color mixing, black yarn is used for adjusting the color depth of colored spun yarn. According to the mixed color spinning achievement method and device based on the four primary color CMYK rough yarn coupling drafting, the color defect of the colored spun yarn in an existing technology is overcome by introducing black and using the black yarn to adjust the color depth of the final yarn, so that the ideal color effect is further obtained.

Description

technical field [0001] The invention relates to the field of spinning in textile engineering, in particular to a method and device for realizing mixed-color spinning based on CMYK four-color roving coupled drafting. Background technique [0002] Color spinning is to selectively mix colored fibers (dyed fibers or liquid dyed fibers), and then spin them into colored yarns with a certain color. Use this colored yarn for yarn-dyed weaving, and form color distribution on the fabric by mixing colors, such as grid fabric, jacquard fabric and other cloth surface effects. [0003] There are two traditional color spinning processes, one is to make slivers of different colors by pre-spinning mixed colors, and then the spun yarn is drawn and twisted to form melange yarns; the other is to draw two different colored rovings by drafting The middle and rear rollers of the mechanism are fed separately, and one of the rovings is unevenly drafted, and then merged and twisted to form bamboo se...

AI Technical Summary

Problems solved by technology

However, because the dye used in dyeing is not an ideal dye, that is to say, the ideal yellow dye should completely reflect the visible light of 500-700 nanometers and completely absorb the visible light of 400-500 nanometers, but the actual yellow dye used is not like this. It has insufficient reflection at 500nm-700nm and insufficient absorption at 400-500nm. The reason is that a small amount of magenta and cyan components are present when the yellow dye develops color.

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