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Method of dyeing with reactive dye

A technology of reactive dyes and dyeing methods, applied in the field of dyeing methods, can solve problems such as difficulty in fully applying and lack of uniformity on the surface of composite materials

Inactive Publication Date: 2005-08-31
DAIICHI KASEI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, since there was a strong demand for composite materials containing synthetic polyamides that are difficult to dye, or synthetic polyamides that are sweat-absorbent, which are easier to dye than cotton, it was learned that only such classified Reactive dyes are difficult to fully apply
[0009] It is also known that in the case of a material with a ratio of synthetic polyamide as low as 15% or less, or a very light color with a dyeing concentration of 0.5 o.w.f (weight % equivalent to the weight of the dyed object) or less, synthetic polyamide is dyed densely, even if obtained The hue of the same color system also lacks the uniformity of the surface of the composite material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0251] From the reactive dyes belonging to Class A, select a mixed dye 0.5% o.w.f. composed of 50 parts of Sumifix Yellow 2GL (manufactured by Sumitomo Chemical Industry Co., Ltd.) 150% gran, 50 parts of Sumifix Yellow GN (manufactured by Sumitomo Chemical Industry Co., Ltd.)) Special, and 6-Nylon wool fabric (Toray company), dyeing at 100° C. for 50 minutes in a dyeing bath with a liquor ratio of 1:20 and containing 30 g / L of anhydrous sodium sulfate. Then cool to 70°C, add 10g / L of sodium carbonate and treat for 30 minutes, then wash with water, wash with hot water, and perform normal saponification, wash with water, and wash with hot water. Bright green dyed matter can be obtained, and even if the dyeing concentration is 1 / 2 or 2 times, bright dyed matter of the same color system can be obtained. In the washing resistance test of these dyed products according to JIS A-2, all the white cloths are clean and very good.

Embodiment 2

[0253] Add 0.5% o.w.f. of lanyl Brill yellow 3G (manufactured by Sumitomo Chemical Industry Co., Ltd.) and 0.5% lanyl BrillBlue G (manufactured by Sumitomo Chemical Industry Co., Ltd.) of the yellow and blue mixed dyes described in Example 1 respectively in 0.5% o.w.f. % o.w.f. into the dyeing bath, with 6,6-nylon wool clothing, dyed in the same way as in Example 1, can obtain a thick green dyed product, even if the dyeing concentration is changed as in Example 1, the color will not deteriorate, and it can be Good dyeing of the same shade is obtained. In the washing resistance test of these dyed products according to JIS A-2, all the white cloths are free from stains and are very good.

Embodiment 3

[0255] Belonging to Class A reactive dyes, a yellow dye made from a mixed dye of Sumifix Yellow 2GL (manufactured by Sumifix Chemical Industry Co., Ltd.) 150% gran 50% and Sumifix Gold Yellow GG (manufactured by Sumifix Chemical Industry Co., Ltd.) 150% gran 50%, produced by Sumifix Brill Red G (manufactured by Sumitomo Chemical Industries) Special 30%, Sumifix Supra Brill Red GF (manufactured by Sumitomo Chemical Industries) 150% gran 35% and Sumifix Supra Brill Red BSF (manufactured by Sumitomo Chemical Industries) 150% gran 35% mixed dyes The resultant red dye and Sumifix Brill.Blue R (manufactured by Sumitomo Chemical Co., Ltd.) 150% gran 35%, and Levafix Royal Blue E-FR (manufactured by Dystar Corporation) 65% mixed dyes are composed of three primary color dyes of blue dye. With any of these dyes, 70 parts of 6,6-nylon woolen fabric and 30 parts of cotton knitted fabric (without mercerizing treatment) are dyed in the same dye bath as in Example 1, even if the dyeing is cha...

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PUM

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Abstract

A method of dyeing with one or more reactive dyes either a single material selected between polyamide fibers and cellulose fibers or a composite material comprising a material selected among synthetic polyamide and natural polyamide fibers and a material selected among cellulose, polyacrylic, and polyester fibers, characterized in that the reactive dyes are selected based on a classification of reactive dyes by the ratio of the color density of dyed synthetic polyamide fibers to that of cellulose fibers dyed in the same bath as the synthetic polyamide fibers and on color differences for correction, and that the work is dyed with the reactive dyes or with a combination of the reactive dyes and one or more dyes selected among metal-containing acid dyes, disperse dyes, etc., all the dyes to be used being dissolved in a single bath.

Description

technical field [0001] The present invention relates to a dyeing system excellent in economical efficiency while dyeing a composite material composed of almost all fibers with high fastness and high quality in a one-bath method, and dyeing based on the system Law. [0002] More specifically, the present invention relates to classifying reactive dyes that can be covalently bonded to fibers, according to the degree of difficulty and dyeing conditions of reactive dyes on polyamide fibers, and classifying reactive dyes through these classified reactive dyes. , or through the combination of the reactive dye and a dye suitably selected from acid metal-containing dyes, cationic dyes and disperse dyes, a single fiber material or a composite material composed of almost all fibers that can be covalently bonded to the reactive dye, to A new dyeing system with high economical efficiency and a dyeing method using this system for one-bath color dyeing with high fastness and high quality. ...

Claims

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Application Information

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IPC IPC(8): D06P3/00D06P3/24D06P3/66D06P3/82D06P3/87D06P3/872
CPCD06P3/8204D06P3/8214D06P3/8271D06P3/8219D06P3/008D06P3/66D06P3/248
Inventor 情野纯三郎
Owner DAIICHI KASEI CO LTD
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