CN101768876A

CN101768876A - Dyeing process using reducing and bleeding

Info

Publication number: CN101768876A
Application number: CN200810187499A
Authority: CN
Inventors: 徐运昌
Original assignee: FUJIAN CO-PROSPERITY HOLDINGS Ltd
Current assignee: FUJIAN CO-PROSPERITY HOLDINGS Ltd
Priority date: 2008-12-31
Filing date: 2008-12-31
Publication date: 2010-07-07
Anticipated expiration: 2028-12-31
Also published as: CN101768876B

Abstract

The invention discloses a dyeing processing using reducing and bleeding, which is realized by the following scheme: obtaining semi-finished product of plain white cloth, and working procedures of padding dye solution, steaming, washing, oxidizing, soaping, washing, drying, padding and softening, tentering, shrinking and obtaining a finished product. Another drying working procedure and the working procedure of padding reducing solution are sequentially added between the working procedures of padding dye solution and the steaming; and dye used by the working procedure of padding dye solution is a mixture of reducing dye the weight ratio of which is 2:3-3:2 and sulfur dye. By the invention, the reducing dye with excellent color fastness and sulfur dye which is easy to bleed are mixed and compounded according to a certain proportion to obtain new bleeding and reducing dye; and two kinds of dye can be simultaneously dyed on the cloth cover by adding a reducing agent suitable for the sulfur dye in a reducing solution prescription and using a one-step dyeing method. Compared with the prior art, clothes made of fabrics dyed by the process can obtain satisfied bleeding, traditional and leisure style after being subject to simple washing with enzyme; and in addition, the light fastness in the medium-light colors can reach 3-4 levels.

Description

Dyeing process using reducing and bleeding

Technical field

The present invention relates to the textile dyeing and finishing field, specifically is to wash to take off dyeing.

Background technology

Present washing taken off the dyeing continuous knot dyeing technology and mainly contained pigment dyeing technique and sulfur dyeing technology.

The technological process of pigment dyeing technique is: semi-products calico → pad is coated with material process → dyeing process → baking operation → bake operation → pad softening step → tentering operation → shrinking processes → finished product.Characteristics such as pigment dyeing technique has cheap, and chromatogram is complete, but exist dried wet rubbing fastness poor, especially brushing fastness is poor especially, and ready-made clothes can cause local whiting through scrubbing or washing by rubbing with the hands, and light light fastness is relatively poor.Because coating is to cover on the cloth cover by binder film, feel also can be affected, and the fluctuation of setting temperature can cause and wash the back aberration in the production process.

The technological process of sulfur dyeing technology is: semi-products calico → pad dye liquor operation → decatize operation → washing step → oxidation operation → soap washing → washing step → baking operation → pad softening step → tentering operation → shrinking processes → finished product.It is to wash the lining that fades that sulfur dyeing technology is fit to dark in the processing, and chromatogram is comparatively complete.But with the middle light photooxidation resistant fastness extreme difference of its production, the cloth cover pH value influence of light of checking colors also is very big, especially khaki, coffee, military green colour system.More fatal shortcoming is that the seriously not anti-chlorine of the product of this explained hereafter floats, and specific activity dyeing is poorer.Dark dried wet rubbing fastness also is very poor.Because dye liquor is the leuco compound dyeing of SULPHUR DYES, each dyestuff is not of uniform size to cellulosic affinity, to LOT look before washing and the difficult control of Bian Zhongse, causes the LOT look amount of returning something for repairs very big in the production process, thereby influence the back LOT look of washing of finished product, production efficiency is also lower.

Summary of the invention

The good dyeing process using reducing and bleeding of COLOR FASTNESS that the purpose of this invention is to provide a kind of middle light color.

Technical scheme of the present invention is such: dyeing process using reducing and bleeding is achieved by the following scheme: semi-products calico → pad dye liquor operation → decatize operation → washing step → oxidation operation → soap washing → washing step → baking operation → pad softening step → tentering operation → shrinking processes → finished product; Above-mentioned padding also passed through another baking operation successively and padded the reducing solution operation between dye liquor operation and the above-mentioned decatize operation; The above-mentioned used dyestuff of dye liquor operation that pads is that weight ratio is 2: 3-3: 2 the reducing dye and the mixture of SULPHUR DYES.

Above-mentioned another baking operation: temperature 60-80 ℃, the time is as the criterion with the cloth cover oven dry.

The above-mentioned reducing solution operation of padding: the cloth after will handling through above-mentioned another baking operation carry out normal temperature and pad reducing solution, advance steam box then and finish second at 100-102 ℃ of decatize 45-60 and dye process; Whenever go up and state reducing solution and be prepared from by the sodium hydrosulfite of 10-50 gram, the reductants of 20 grams, the caustic soda and the water of 10-50 gram.

After adopting such scheme, the present invention with the extraordinary reducing dye of every fastness with easily wash the SULPHUR DYES that takes off according to a certain percentage (2: 3-3: 2) piece together mix composite, obtain new using reducing and bleeding dyestuff, to add a kind of reductant that is fit to this SULPHUR DYES in the reducing solution prescription again, and these two kinds of dyestuffs be dyed on the cloth cover simultaneously with the method that once dyes.Compared with prior art, make clothes by the lining of technology dyeing of the present invention and take off imitative old leisure style, and its light at middle light color can reach the 3-4 level after simple leaven washing can obtain gratifying washing.

The specific embodiment

Embodiment one:

Dyeing process using reducing and bleeding of the present invention, its technological process is: semi-products calico → pad dye liquor operation → first baking operation → pad reducing solution operation → decatize operation → washing step → oxidation operation → soap washing → washing step → second baking operation → pad softening step → tentering operation → shrinking processes → finished product.

Wherein, decatize operation, washing step, oxidation operation, soap washing, washing step, second baking operation, to pad softening step, tentering operation and shrinking processes be the treatment process of industry routine.

Wherein:

Pad the dye liquor operation: the color that will dye according to cloth adds the dyestuff of phase application quantity in water-bath, normal temperature pads, 30 meters/minute of the speed of a motor vehicle.Used dyestuff is that weight ratio is 2: 3 the reducing dye and the mixture of SULPHUR DYES.The reducing dye here is reduced olive T, Vat Brown BR, Vat Grey BG, these four standard form and aspect of reducing yellow G; The SULPHUR DYES here serve as reasons sulfuration Borland CV, sulfur red brown b3r, these three kinds pulverous SULPHUR DYES of sulphur yellow brown 5G piece together blend together with reduced olive T, Vat Brown BR, Vat Grey BG, reducing yellow G corresponding monochrome respectively.

First baking operation: the drying cylinder oven dry again of first hot blast, 60 ℃ of temperature, the time is as the criterion with the cloth cover oven dry.

Pad the reducing solution operation: will carry out normal temperature through the cloth after first baking operation is handled and pad reducing solution, and advance steam box then and finished in 45 seconds 100 ℃ of decatizes and dye process.Every liter of reducing solution is prepared from by the sodium hydrosulfite of 10 grams, the glucose of 20 grams, the caustic soda and the water of 10 grams.

Embodiment two:

Wherein:

Pad the dye liquor operation: the color that will dye according to cloth adds the dyestuff of phase application quantity in water-bath, normal temperature pads, 45 meters/minute of the speed of a motor vehicle.Used dyestuff is that weight ratio is 1: 1 the reducing dye and the mixture of SULPHUR DYES.The reducing dye here is reduced olive T, Vat Brown BR, Vat Grey BG, these four standard form and aspect of reducing yellow G; The SULPHUR DYES here serve as reasons sulfuration Borland CV, sulfur red brown b3r, these three kinds pulverous SULPHUR DYES of sulphur yellow brown 5G piece together blend together with reduced olive T, Vat Brown BR, Vat Grey BG, reducing yellow G corresponding monochrome respectively.

First baking operation: the drying cylinder oven dry again of first hot blast, 70 ℃ of temperature, the time is as the criterion with the cloth cover oven dry.

Pad the reducing solution operation: will carry out normal temperature through the cloth after first baking operation is handled and pad reducing solution, and advance steam box then and finished in 52 seconds 101 ℃ of decatizes and dye process.Every liter of reducing solution is prepared from by the sodium hydrosulfite of 30 grams, the glucose of 20 grams, the caustic soda and the water of 30 grams.

Embodiment three:

Wherein:

Pad the dye liquor operation: the color that will dye according to cloth adds the dyestuff of phase application quantity in water-bath, normal temperature pads, 60 meters/minute of the speed of a motor vehicle.Used dyestuff is that weight ratio is 3: 2 the reducing dye and the mixture of SULPHUR DYES.The reducing dye here is reduced olive T, Vat Brown BR, Vat Grey BG, these four standard form and aspect of reducing yellow G; The SULPHUR DYES here serve as reasons sulfuration Borland CV, sulfur red brown b3r, these three kinds pulverous SULPHUR DYES of sulphur yellow brown 5G piece together blend together with reduced olive T, Vat Brown BR, Vat Grey BG, reducing yellow G corresponding monochrome respectively.

First baking operation: the drying cylinder oven dry again of first hot blast, 80 ℃ of temperature, the time is as the criterion with the cloth cover oven dry.

Pad the reducing solution operation: will carry out normal temperature through the cloth after first baking operation is handled and pad reducing solution, and advance steam box then and finished in 60 seconds 102 ℃ of decatizes and dye process.Every liter of reducing solution is prepared from by the sodium hydrosulfite of 50 grams, the glucose of 20 grams, the caustic soda and the water of 50 grams.

Claims

1. dyeing process using reducing and bleeding is achieved by the following scheme: semi-products calico → pad dye liquor operation → decatize operation → washing step → oxidation operation → soap washing → washing step → baking operation → pad softening step → tentering operation → shrinking processes → finished product; It is characterized in that: above-mentioned padding also passed through another baking operation successively and padded the reducing solution operation between dye liquor operation and the above-mentioned decatize operation; The above-mentioned used dyestuff of dye liquor operation that pads is that weight ratio is 2: 3-3: 2 the reducing dye and the mixture of SULPHUR DYES.

2. according to claim 1 washing taken off dyeing, it is characterized in that: above-mentioned another baking operation: temperature 60-80 ℃, the time is as the criterion with the cloth cover oven dry.

3. according to claim 1 washing taken off dyeing, it is characterized in that: the above-mentioned reducing solution operation of padding: the cloth after will handling through above-mentioned another baking operation carry out normal temperature and pad reducing solution, advance steam box then and finish second at 100-102 ℃ of decatize 45-60 and dye process; Whenever go up and state reducing solution and be prepared from by the sodium hydrosulfite of 10-50 weight portion, the reductant of 20 weight portions, the caustic soda and the water of 10-50 weight portion.