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Blue dye composition preparation and use

A technology of blue dyes and compositions, applied in organic dyes, dyeing methods, textiles and papermaking, etc., to achieve good color rendering power, dyeing reproducibility and improved level dyeing

Inactive Publication Date: 2005-02-16
上海染料化工八厂 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far in the category of blue varieties, there is still a lack of exhausted dyeing varieties that can take into account color giving, lifting, vividness and fastness (especially light fastness)

Method used

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  • Blue dye composition preparation and use
  • Blue dye composition preparation and use
  • Blue dye composition preparation and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071]Take 20 parts of the above-mentioned dyes of the formula III conforming to the general structural formula I, 20 parts of the dyes of the formula XII, 40 parts of the dyes of the formula XXX conforming to the general structural formula II, and 20 parts of the dyes of the formula XXXII, and fully mix them with each other to form a uniform dye composition. Then dye or print on the cotton fiber fabric with the following example method to obtain a blue color with uniform color, good lifting performance, bright color and excellent light fastness.

[0072] 1. Dip dyeing (exhaustion dyeing)

[0073] Dye bath formula: 2-6% of the above-mentioned combined dyes (to the weight of cotton fabric), 60 grams per liter of sodium sulfate, 20 grams per liter of soda ash, and a bath ratio of 1:20.

[0074] Dyeing process steps: dissolve 1-3 parts of the above-mentioned combined dyes with appropriate amount of water, then add 600 parts of 10% (weight %) Yuanming powder liquid, and finally ad...

Embodiment 2

[0080] Take 20 parts of the above-mentioned dyes of the formula V and 20 parts of the dyes of the formula XVI conforming to the general structural formula I, and 40 parts of the dyes of the XXIX and 20 parts of the dyes of the formula XXXII conforming to the general structural formula II, and fully mix them with each other to form a uniform dye composition, and then press The exhaust dyeing and printing method of Example 1 is used for dyeing and printing on cotton fabrics, and can obtain bright blue-dark blue with uniform coloring, excellent fastness, and green light.

Embodiment 3

[0082] Take 20 parts of the dyes of the formula XII and 20 parts of the dyes of the formula XXII conforming to the general structural formula I, and 40 parts of the dyes of the formula XXXI and 20 parts of the dyes of the formula XXXII conforming to the general structural formula II, and fully mix them with each other to form a uniform dye composition. Then carry out dyeing or printing on the cotton fabric according to the exhaust dyeing and printing method of embodiment 1, can obtain the vivid blue-dark blue of even color giving, good fastness, slightly red light.

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Abstract

The invention refers to a kind of blue reactive dyeing combination adaptable to the coloration and printing of the cotton, wool, silk, leather, polyamide synthetic fiber and other mixed fiber fabric. The combination is composed of reactive dyeing suitable to the following two fabric general formula I and II. The mixed proportion is (in the amounts of weight) I:II=80:20-20:80. The combination is a kind of general blue reactive dyeing combination with high reactivity and is especially adaptable to the dip-dyeing of cotton fibre fabric at moderate temperature. It little depends on the condition of dyeing technique (such as the kinds, dosage, temperature, bath ratio and time of the dyebath alkaline agent and dyeing accelerant), has good building up properties, dyeing reproducibility, level-dyeing property, tintage, fixation rate and fastness (such as solarization, blanching and washing).

Description

Technical field: [0001] The invention relates to a blue dye composition suitable for dyeing and printing cotton, wool, silk, leather, polyamide synthetic fiber and other blended fiber fabrics, in particular to a blue reactive dye composition and its preparation and application . Background technique: [0002] Reactive dyes are bright in color, easy to use, and widely applicable, and are generally welcomed by the textile printing and dyeing industry. Since the 1980s, due to the constraints of environmental, ecological and economic factors, domestic and foreign printing and dyeing industries have paid great attention to the improvement of dyeing absorption rate and the reduction of dyeing waste liquid in the dyeing process of reactive dyes. To this end, dyestuff manufacturers in various countries have also responded one after another, and have continuously launched new commercial brands suitable for exhaust dyeing. Reactive, suitable for medium temperature staining. But so ...

Claims

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Application Information

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IPC IPC(8): C09B67/24D06P1/38D06P3/87
Inventor 奚翔云庄德荣吴惊雷曹斌孙淑鹃
Owner 上海染料化工八厂