Because cotton fiber is mixed,the shape structure of wool fibre and chemical function differ, they are right acid-base reaction function is contrary, to catch full treatment to bring very great difficulty. Mix yarn fabric to plumule accordingly catch full treatment must function of chemistry of two kinds of fibrous maintains give attention to two or morethings the character of plumule blending fabric will decide craft, especially the sex is the same as color of cotton and wool is one of coloring main index.
Because akin dye is right different fibrous alternative or coloring sex is different, respect existence difference waits in rate of the dye-uptake of dye, coloring, color, because this wants to achieve the good sex that be the same as color, the requirement that must choose appropriate dye to make be accorded with in the dye-uptake on plumule certain. Concerned data makes clear, when akin dye acquires plumule blending product, make concolorous theory is caught on plumule, the ratio proportionate that the ratio of the dye-uptake that goes up in plumule respectively namely and plumule accumulate than the surface is academic. The area ratio comparing a list of cotton abb is big, if cotton and abb dye-uptake are equal, what the dye chroma on cotton unit area compares abb fiber to go up is small, the apparent that caused cotton compares woolen to lubricious quantity low, cause off color thereby. Want to make plumule fiber has identical apparent colour and lustre, must make the dye chroma on cotton fiber and area of abb fiber unit equal. Choose friendly to the environment biology enzymatic undertake to plumule blending product pre-treatment and choose level dyeing sex good, dye-uptake tall, stability is good and prison the much active that has spent base active dye is right plumule blending fabric undertakes coloring.
The ΔK ／ S of light color fabric is worth (the function of deepness of surface of K ／ S expresses, color of numeric bigger specification is deeper) the ΔK ／ S of the yarn dyed fabric in comparing, deep yarn dyed fabric wants small, that is to say fabric coloring jumps over plumule blending more greatly to achieve the sex that be the same as color, coloring not easily more shallow achieve the sex that be the same as color more easily.
Craft of coloring of one bath law gives priority to the coloring technique of yarn of blending of cotton ／ wool, its reason is existence of coloring of one bath law the following characteristic: (1) reduce coloring cycle time, improve manufacturing efficiency, cost of crop tall labor and general overhead expenses can be compressed as far as possible; (2) managing specific power consumption; Of the chemical such as managing auxiliary use up; (3) coloring uniformity facilitating control and adjust, and of the yarn after catching work rub, wet rub prison degree all better.
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