CN101250334A - Reactive dark blue RGB diazo dyes and preparation method thereof - Google Patents
Reactive dark blue RGB diazo dyes and preparation method thereof Download PDFInfo
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- CN101250334A CN101250334A CNA200810023303XA CN200810023303A CN101250334A CN 101250334 A CN101250334 A CN 101250334A CN A200810023303X A CNA200810023303X A CN A200810023303XA CN 200810023303 A CN200810023303 A CN 200810023303A CN 101250334 A CN101250334 A CN 101250334A
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Abstract
Reactive navy blue RGB azo dye and a preparation process thereof are disclosed, and the structural formula showed as right formula, wherein R1=H, SO3H, OCH3, CH3, C2H5, OC2H5, and M=Na, K. The compound is prepared through coupling H acid with diazonium salt of sulphate ethyl sulphone aniline compound which comprises sulfonic acid group or methyl group, methoxyl group, ethyl group and ethoxyl group. The dye is suitable to be used on the dying, direct printing and discharge of cotton fiber, and has the advantages of evenly coloring, bright color, excellent fastness, favorable lifting power, high color yield and extreme high fixation yield.
Description
Technical field
The present invention relates to a kind of reactive dark blue RGB diazo dyes and preparation method thereof.
Background technology
The structure of reactive black KN-B (C.I reactive black 5) is as follows:
The monochromatic pitch black degree of this dyestuff is not enough, degree of fixation low (generally between 60-65%), and lifting force is not high, can not dye aterrimus.
Other that occurs on the market dark blue (or black) its degree of fixation or pitch black degree are all not as good as reactive navy blue NDS in addition.
Summary of the invention
The purpose of this invention provide have stable performance, degree of fixation height, lovely luster, good lifting force, dye yield height, a kind of reactive dark blue RGB diazo dyes that depth is good and preparation method thereof:
A kind of reactive dark blue RGB diazo dyes of the present invention claims reactive navy blue NDS or Reactive blue C.I250 again, and its structural formula is as follows:
In the formula: (1) R
1=H, SO
3H, OCH
3, CH
3, C
2H
5, OC
2H
5Deng
(2)M＝Na、K。
Active group among the present invention contains the group that can be converted into vinyl, and its compound is to be made by the diazonium salt coupling of H acid with the ethyl sulfonyl sulfate aniline compound that contains sulfonic group or methyl, methoxyl group, ethyl, oxyethyl group.
The present invention prepares the mode of diazonium salt and grinds little acid than diazonium for ice, and the coupling temperature is 0-25 ℃, PH=1.3-6.5.
A kind of reactive dark blue RGB diazo dyes of the present invention is compared with prior art reactive black KN-B, reactive black G2RC etc., have colouring evenly, bright in colour, lifting force that fastness is good, good, dye yield height, advantages such as degree of fixation that depth is good, high, be applied to dip-dye, pad dyeing, the stamp of various fibers, its simultaneous test data are listed in the table one.
Table one
Performance index adopt following standard in table:
The general condition regulation that the GB/T2374-1994 dyeing is measured
The measuring method of insolubles content in the GB/T2381-1994 dyestuff
The measuring method of GB/T2383-1980 dyestuff screening fineness
The measuring method of GB/T2386-1980 dye well dyestuff intermediate moisture content
The measuring method of GB/T2388-1980 printing with reactive dye coloured light and intensity
The measuring method of the relative content of hydrolised dye and standard in the GB/T2389-1980 reactive dyestuffs
The measuring method of GB/T2390-1980 reactive dyestuffs pH value
The measuring method of GB/T2393-1980 printing with reactive dye degree of fixation
The measuring method of GB/T2392-1980 reactive dyestuffs thermostability
The mensuration of GB/T3671.1-1996 water-soluble dye solubleness and steady dissolution
The test method of GB/T3920-1997 textiles colour fastness to rubbing
The test method of GB/T3921.4-1997 textiles colour fastness to washing
The test method of GB/T3922-1995 textiles colour fastness to perspiration
GB/T4841.1-1984 1/1 dyeing standard depth colour atla
The test method of the heat-resisting pressure of GB/T6152-1997 textiles (flatiron) fastness
GB/T6678-1986 Chemicals sampling general provisions
GB/T8427-1998 textiles colour fastness to light test method (xenon arc)
The test method of the anti-chloride swimming-pool water colour fastness of GB/T8433-1998 textiles
Specific embodiments:
Embodiment one
(1) takes by weighing 59 parts of ethyl sulfonyl sulfate aniline compounds that contain sulfonic group or methyl, methoxyl group, ethyl, oxyethyl group, add an amount of frozen water 0 ℃ of making beating 2 hours.
(2) add quantitative hydrochloric acid then, add 6.9 parts of inferior sodium, temperature 5-8 ℃, the blue look of control congo-red test paper, the little orchid of KI test paper, inferior sodium added afterreaction 1 hour, eliminated little excessive nitrous acid.
(3) add 34 parts of H acid in diazonium salt, at 0-15 ℃, alkali is even again for acid idol earlier under the condition of PH=1.3-6.5, obtains a kind of reactive navy blue RGB dyestuff of ruddiness.
Embodiment two: adopt embodiment one prescription, at 10-15 ℃, coupling under the condition of PH=1.3-5.5 obtains a kind of reactive black S-G of inclined to one side blue streak.
Embodiment three
(1) takes by weighing the ethyl sulfonyl sulfate aniline compound that 59.5 parts of weight contain sulfonic group or methyl, methoxyl group, ethyl, oxyethyl group, add an amount of frozen water 0 ℃ of making beating 2 hours.
(2) add quantitative hydrochloric acid then, add 6.9 parts of inferior sodium, temperature 5-8 ℃, the blue look of control congo-red test paper, the little orchid of KI test paper, inferior sodium added afterreaction 1 hour, eliminated little excessive nitrous acid.
(3) add 34 parts of H acid in diazonium salt, at 10-25 ℃, alkali is even again for acid idol earlier under the condition of PH=2-6.5, obtains a kind of Reactive blue C.I250 of ruddiness.
Embodiment four: at 10-15 ℃, coupling under the condition of PH=1.3-5.5 obtains a kind of reactive navy blue RGB of blue light according to the proportioning of example three.
Claims (6)
1. reactive dark blue RGB diazo dyes, its structural formula is as follows:
In the formula: (1) R
1=H,, SO
3H, OCH
3, CH
3, C
2H
5, OC
2H
5
(2)M＝Na、K。
2. it is characterized in that containing the ethyl sulfonyl sulfate group according to right 1 described a kind of reactive navy blue RGB.
3. according to right 1 described reactive navy blue RGB, its dyeing characteristic is to contain ethyl sulfonyl sulfate can be converted into the group that contains vinyl.
4. according to the preparation method of the described dyestuff of claim 1, be to carry out coupling by the sour diazonium salt with the ethyl sulfonyl sulfate aniline compound that contains sulfonic group or methyl, methoxyl group, ethyl, oxyethyl group of H to make, this compound is the mixture of multiple compound.
5. according to the preparation method of the described dyestuff of claim 4, it is characterized in that its diazonium mode compares diazonium for the little acid of ice mill.
6. according to the preparation method of the described dyestuff of claim 4, it is characterized in that its coupling temperature is 0-25 ℃, PH=1.3-6.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810023303XA CN101250334A (en) | 2008-04-08 | 2008-04-08 | Reactive dark blue RGB diazo dyes and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810023303XA CN101250334A (en) | 2008-04-08 | 2008-04-08 | Reactive dark blue RGB diazo dyes and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101250334A true CN101250334A (en) | 2008-08-27 |
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ID=39953944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810023303XA Pending CN101250334A (en) | 2008-04-08 | 2008-04-08 | Reactive dark blue RGB diazo dyes and preparation method thereof |
Country Status (1)
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| CN (1) | CN101250334A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408743A (en) * | 2011-08-10 | 2012-04-11 | 吴江梅堰三友染料化工有限公司 | Production process of direct blending navy blue D-R dye |
| CN113667324A (en) * | 2021-09-07 | 2021-11-19 | 湖北华丽染料工业有限公司 | Dark blue reactive dye composition and preparation method thereof |
-
2008
- 2008-04-08 CN CNA200810023303XA patent/CN101250334A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102408743A (en) * | 2011-08-10 | 2012-04-11 | 吴江梅堰三友染料化工有限公司 | Production process of direct blending navy blue D-R dye |
| CN102408743B (en) * | 2011-08-10 | 2013-04-17 | 吴江梅堰三友染料化工有限公司 | Production process of direct blending navy blue D-R dye |
| CN113667324A (en) * | 2021-09-07 | 2021-11-19 | 湖北华丽染料工业有限公司 | Dark blue reactive dye composition and preparation method thereof |
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Open date: 20080827 |