Bi-component monoazo disperse blue dye composition

A dye composition and disperse blue technology are applied in the field of dye chemistry to achieve the effects of low production cost, excellent comprehensive performance and high upgradeability

Inactive Publication Date: 2012-06-20
DONGYING ANNUOQI TEXTILE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are currently few blue dyes with excellent performance, so expensive dyes such as anthraquinone disperse blue 2BLN have not been able to be replaced, which has become a big problem in the dye industry

Method used

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  • Bi-component monoazo disperse blue dye composition
  • Bi-component monoazo disperse blue dye composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Diazotization: Add 57 ml of 93% (wt) concentrated sulfuric acid to a 100 ml three-necked flask, start stirring, and add 99% (wt) of 3-amino-5-nitro-[2,1]-benzisothiazole 19.6 g, at this time the temperature was raised to 35~45°C, and kept stirring for 4 hours to completely dissolve the diazo component. Cool to 0°C in an ice-water bath, slowly add 34 g of 40% (wt) nitrosyl sulfuric acid dropwise, then control the reaction temperature at 10°C, stir and react for 4 hours to obtain a brown diazonium salt solution for later use.

[0029] Preparation and coupling of coupling components (a accounts for 1% molar percentage of the whole):

[0030] Add 300 ml of water to a 3000 ml beaker, add 10 ml of 93% (wt) concentrated sulfuric acid (the pH is about 1 at this time), 0.19 g (0.00105 moles) of component a coupling component, and 24.15 g of component b coupling component while stirring. gram (0.10395 mol), 0.3 gram of Pingpingjia O, 0.7 gram of sulfamic acid, fully stirred unti...

Embodiment 2

[0032] On the basis of Example 1, only change the proportioning ratio of the couple and components, that is, a accounts for 5% of the overall molar percentage, and the other process steps remain unchanged, finally obtaining 40.6 grams of former dyestuffs, an average molecular weight of 436, and a yield of 92 %; HPLC analysis dye molar ratio is a: b = 4.1: 95.9.

Embodiment 3

[0034] Diazotization: Add 57 ml of 98% (wt) concentrated sulfuric acid to a 100 ml three-neck flask, start stirring, add 99% (wt) 3-amino-5-nitro-[2,1]-benzisothiazole 19.6 g, at this time the temperature was raised to 35~45°C, and kept stirring for 4 hours to completely dissolve the diazo component. Cool to 0°C in an ice-water bath, slowly add 34 g of 40% (wt) nitrosyl sulfuric acid dropwise, then control the reaction temperature at 10°C, stir and react for 4 hours to obtain a brown diazonium salt solution for later use.

[0035] Preparation and coupling of coupling components (a accounts for 10% mole percent of the total):

[0036] Add 300 ml of water to a 3000 ml beaker, add 10 ml of 98% (wt) concentrated sulfuric acid under stirring (the pH is about 1 at this time), 1.88 g (0.0105 moles) of component a coupling component, and 21.96 g of component b coupling component gram (0.0945 mol), 0.3 gram of Pingpingjia O, 0.7 gram of sulfamic acid, fully stirred until each raw mate...

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Abstract

The invention relates to the field of dyestuff chemistry, in particular to a bi-component monoazo disperse blue dye composition, and adopts the technology method that the composition comprises azo disperse blue dyes (a and b), the combination molar ratio of the dye (a) to the dye (b) is 1:99 to 99:1, and the dyes (a and b) are shown in figures. The composition provided by the invention is proved to be applicable to dyeing of hydrophobic fibers such as terylene, nylon, spandex and the like as well as mixed fabric of the hydrophobic fibers, and has a stronger synergistic darkening effect; and the effects of adjusting chromatic light of the dyes and synergia can be achieved by changing the proportion of coupled components in reaction raw materials, so as to meet the requirements for different application conditions. Meanwhile, the composition has a high dye elevating property, is excellent in color fastness to water washing, solarization, sublimation and the like, is superior to disperse blue 2BLN in comprehensive performance, and has a low manufacturing cost and a wide application prospect.

Description

technical field [0001] The invention relates to the field of dye chemistry, in particular to a two-component monoazo disperse blue dye composition. Background technique [0002] With the increase in the output and variety of synthetic fibers worldwide, the amount of disperse dyes is increasing year by year. Among them, azo disperse dyes are characterized by their complete chromatograms, variable structures, and excellent performance. The advantages of simple reaction and low cost have increasingly become an important class of disperse dyes widely used in the printing and dyeing industry. There are few blue dyes with excellent performance, so expensive dyes such as anthraquinone disperse blue 2BLN cannot be replaced, which has become a big problem in the dye industry. Contents of the invention [0003] Aiming at the above problems, the present invention provides a two-component monoazo disperse blue dye composition. The dye has bright color and excellent performance, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/38D06P1/19D06P3/54
Inventor 王敬敏李诗杰刘春德
Owner DONGYING ANNUOQI TEXTILE MATERIALS
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