Natural dye mordanting dyeing or mordanting printing product and preparation method thereof
A natural dye and mordant technology, applied in the field of textile printing and dyeing, can solve the problems of uneven color of natural dye mordant dyeing, hard hand feeling of printed products, poor color fastness, etc., to improve color fastness, good color fastness and cost low effect
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Embodiment 1
[0031] The present embodiment provides a kind of chlorophyll natural dye ferrous sulfate mordant and prints the pure cotton woven cloth preparation method of NIKE letter, and this method comprises the following steps:
[0032] The pure cotton woven fabric is subjected to the pretreatment of desizing, scouring and bleaching, and then cationic modification is carried out with the cationic modification working solution; the cationic modification working solution includes 20g / L cationic modifier CR-2000 (Dow Chemical) and the caustic soda of 8g / L; The specific steps of this cationic modification are: the pure cotton woven fabric through pretreatment is processed 1 hour with 70 ℃ in this cationic modification working fluid, and liquor ratio is 1:10, then washed with warm water at 40°C for three times, washed with 0.5g / L acetic acid solution, dried and coiled to obtain a pure cotton woven fabric pretreated by cationic modification;
[0033] The cation-modified pure cotton woven fabr...
Embodiment 2
[0037] The present embodiment provides a kind of preparation method of the printed silk sweater of carmine natural dye copper sulfate mordant printing Esquel, and this method comprises the following steps:
[0038] The degummed, bleached silk knitted fabric is modified using a cationic modification working fluid, which comprises 20g / L of cationic modifier CR-2000 (Dow Chemical) and 10g / L of sodium carbonate; The specific steps of the cationic modification are as follows: treat the pretreated pure cotton woven fabric in the cationic modification working solution at 70°C for 1 hour, the bath ratio is 1:10, and then pass through three passes of warm water at 40°C Washing with water, washing with 0.5g / L acetic acid solution, drying and coiling to obtain cationic-modified silk knitted fabric;
[0039] The above-mentioned cationic modified silk knitted fabric was dyed with 3% owf cochineal natural dye at 90 degrees for 60 minutes, and then washed twice at 60 degrees and once at 40 deg...
Embodiment 3
[0043] Present embodiment provides a kind of preparation method of the pure cotton woven cloth of sorghum red natural dye ferrous sulfate printing A&F letter, and this method comprises the following steps:
[0044] The pure cotton woven fabric through desizing, scouring and bleaching is modified with a cationic modified working fluid. The components of the cationic modified working fluid and its modification process can be referred to in Example 1; the cationic modified pure Cotton woven fabric is dyed with 15g / L sorghum red natural dye, and its dyeing process can refer to embodiment 1; And subsequent washing, dehydration, drying and rolling are carried out to obtain pure cotton woven fabric dyed with sorghum red natural dye;
[0045] Prepare the mordant printing working solution, wherein, based on the total weight of the mordant printing working solution, the working solution includes 4.5wt% ferrous sulfate, 20wt% OB-2 (Shanghai Jingwei Chemical Co., Ltd.), and the balance is ...
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