CN102040861A - Reactive red dye suitable for dyeing nylon and preparation method thereof - Google Patents
Reactive red dye suitable for dyeing nylon and preparation method thereof Download PDFInfo
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- CN102040861A CN102040861A CN201010266303XA CN201010266303A CN102040861A CN 102040861 A CN102040861 A CN 102040861A CN 201010266303X A CN201010266303X A CN 201010266303XA CN 201010266303 A CN201010266303 A CN 201010266303A CN 102040861 A CN102040861 A CN 102040861A
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Abstract
The invention relates to a reactive red dye suitable for dyeing nylon and a preparation method thereof. The dye is a compound shown in a formula (I). The preparation method comprises the following steps of: a, adding p-beta-hydroxyethylsulfonyl aniline solution into cyanuric chloride solution for reaction to obtain primary concentrated solution, and adding J acid into the concentrated solution to obtain secondary concentrated solution; b, adding hydrochloric acid solution and sodium nitrite solution into aminoazobenzene, reacting under the condition that the PH is less than 2, and removing excessive nitrite by using sulfamic acid to obtain diazotized solution; c, dripping the diazotized solution obtained in the step b into the secondary concentrated solution of the step a to obtain coupling reaction solution; d, heating the coupling reaction solution in the step c, keeping the PH equal to 8-11, and hydrolyzing; e, filtering hydrolysis solution in the step d to remove waste residue, and collecting filtrate; f, regulating color light and intensity of the filtrate in the step e; and g, performing spray drying on color solution in the step f to obtain the final product in the formula (I).
Description
Technical field
The present invention relates to a kind of preparation method of nylon active dyestuff.Especially nylon red reactive dyes and preparation method thereof.
Background technology
Now the general nylon used dyestuff that dyes is matching stain, weak acid dye and metallized dye.Because the every wet fastness of nylon that these dyestuffs dyed is not good enough, coloured light is not very gorgeous, and the low rate of clean absorption rate, dyeing liquid waste concentration height, particularly heavy metal cause severe contamination to environment.Enter 21 century, because the restriction of environmental ecology, for dye uptake, the requirement of degree of fixation and dyeing waste liquid is more and more higher.Matching stain, weak acid dye and metal complex can not satisfy the dyeing nylon demand.
It is low, beautiful in colour to be badly in need of minimizing environmental pollution and raw materials cost at present, the excellent nylon active red of every wet fastness properties.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of red nylon active dye well its preparation method, this dyestuff is as shown in the formula the compound shown in (I):
Wherein: M is-H or basic metal that preferred as alkali is Na or K.
The preparation method of the dye composition of above-mentioned formula (I) comprises the steps:
A, condensation reaction:
Right-beta-hydroxyethyl sulfonyl aniline solution joins reaction acquisition primary condensation liquid in the cyanuric chloride solution, adds J acid then in this condensated liquid, obtains the secondary condensated liquid;
B, diazotization reaction:
In P-aminoazobenzene, add hydrochloric acid soln and sodium nitrite solution, under the situation of PH＜2, react, eliminate excessive nitrite with thionamic acid then, get diazonium liquid;
C, coupled reaction:
B step gained diazonium drop is added in the secondary condensated liquid of a step, gets coupled reaction liquid;
D, removal insolubles:
C step coupled reaction liquid is filtered the removal waste residue, collect filtrate;
E, adjustment coloured light and intensity:
D step filtrate is carried out coloured light, intensity adjustment;
F, drying:
The look liquid of e step is carried out spraying drying, get formula (I) the finished product.
Preferably, the preparation method of the dye composition of above-mentioned formula (I) comprises the steps:
A, condensation reaction:
Right-beta-hydroxyethyl sulfonyl aniline solution of pH=2-5 is joined in the cyanuric chloride solution, keep T=0-15 ℃, pH=2-3.5, reacted 4-6 hour, and obtained primary condensation liquid, in this condensated liquid, add J acid then, adjust T=15-40 ℃, pH=4-6 reacted 2-4 hour, obtained the secondary condensated liquid;
B, diazotization reaction:
Add hydrochloric acid soln and sodium nitrite solution in the low temperature P-aminoazobenzene, at T=0-20 ℃, reacted 1-3 hour PH＜2, eliminates excessive nitrite with thionamic acid, gets diazonium liquid;
C, coupled reaction:
B step gained diazonium drop is added in the secondary condensated liquid of a step, keeps T=10-20 ℃, pH=5-7 reacted 1-2 hour, got coupled reaction liquid;
D, removal insolubles:
C step coupled reaction liquid is filtered the removal waste residue, collect filtrate;
E, adjustment coloured light and intensity:
D step filtrate is carried out coloured light, intensity adjustment;
F, drying:
The look liquid of e step is joined in the feed liquid preheater, adjust inlet temperature and temperature out and carry out spraying drying, get formula (I) the finished product.
Preferably, the preparation method of the dye composition of above-mentioned formula (I) comprises the steps:
A, condensation reaction:
In dissolving vessel, add water of a small amount of end and right-beta-hydroxyethyl sulfonyl aniline, use NaHCO
3Be neutralized to pH=2-5, must right-beta-hydroxyethyl sulfonyl aniline solution; In reactor, add less water and a small amount of trash ice, add cyanuric chloride again, in the stirring, drip right-beta-hydroxyethyl sulfonyl aniline solution, T=0-15 ℃, pH=2-3.5 dropwises, and reacts 4-6 hour, obtain primary condensation liquid, in this condensated liquid, add J acid then, adjust T=15-40 ℃, pH=4-6, reacted 2-4 hour, and obtained the secondary condensated liquid;
B, diazotization reaction:
Add end water and P-aminoazobenzene in reactor, stir, add the hydrochloric acid soln and the sodium nitrite solution of trash ice and 30%, at T=0-20 ℃, reacted 1-3 hour PH＜2, eliminates excessive nitrite with thionamic acid, gets diazonium liquid;
C, coupled reaction:
B step gained diazonium drop is added in the secondary condensated liquid of a step, in the dropping process T=10-20 ℃, transfer pH=5-7 with soda ash, drip and finish, react 1-2 hour, must coupled reaction liquid;
D, removal insolubles:
C step coupled reaction liquid is filtered the removal waste residue, collect filtrate;
E, adjustment coloured light and intensity:
D step filtrate is carried out coloured light, intensity adjustment;
F, drying:
The look liquid of e step is joined in the feed liquid preheater, adjust 210 ℃ of inlet temperatures, carry out spraying drying, get formula (I) the finished product with 95-100 ℃ temperature out.
In the aforesaid method, preferably, in the primary condensation liquid preparation T=5-10 ℃, the reaction times is 5 hours;
In the aforesaid method, preferably, in the secondary condensated liquid preparation T=20-30 ℃, the reaction times is 3 hours;
In the aforesaid method, preferably, in the diazotization reaction T=5-15 ℃, the reaction times is 2 hours;
The structure of wherein right-beta-hydroxyethyl sulfonyl aniline is as follows:
The structure of cyanuric chloride is as follows:
The structure of J acid is as follows:
The structure of P-aminoazobenzene is as follows:
Used intermediate all is a disclosed known compound in the prior art in the aforesaid method, all can buy from the market to obtain.
In the aforesaid method, what T represented is temperature, and for example T=10-20 ℃, the expression temperature is between 10-20 ℃.
The present invention also provides a kind of composition of the nylon that is used to dye, and said composition comprises the dye composition and the dyestuff carrier of formula (I).
The purposes that the present invention also provides the dye composition of above-mentioned formula (I) to be used to dye nylon.
The preparation of the dyestuff of above-mentioned formula (I) compound and use can reduce environmental pollution, particularly reduce the pollution of heavy metal.And the desired raw material cost is low, and is beautiful in colour, and every wet fastness is for example wetly rubbed, soaped, excellent performances such as alkali sweat, sour sweat, washing, and is easy to use, is the excellent nylon active red that is applicable to dyeing nylon.
Embodiment
The preparation of the nylon active red compound of embodiment 1 structural formula (II)
The preparation of a, condenses:
In dissolving vessel, add water of a small amount of end and right-beta-hydroxyethyl sulfonyl aniline 28Kg, use NaHCO
3In and pH=4-5, must right-beta-hydroxyethyl sulfonyl aniline solution; In reactor, add less water and a small amount of trash ice, add cyanuric chloride 19Kg again, in the stirring, drip right-beta-hydroxyethyl sulfonyl aniline, T=0-15 ℃, pH=2-3.5 dropwises, and reacts 5 hours, gets primary condensation liquid; Add J acid 26.5Kg in primary condensation liquid, adjust T=35-40 ℃, pH=5-6 reacted 3 hours, got the secondary condensated liquid.
B, P-aminoazobenzene diazotization:
In reactor, add end water, P-aminoazobenzene 21Kg, stir, add trash ice, 30% hydrochloric acid soln and sodium nitrite solution.At 15-20 ℃, reacted 2 hours PH＜2, and (starch potassium iodide paper is little blueness after soaking), eliminate excessive nitrite with thionamic acid, get diazonium liquid.
C, coupled reaction:
The diazonium drop that the b step is obtained is added in a step secondary condensated liquid, drips T=15-20 ℃ of process, transfers pH=5-7 with soda ash, drips and finishes, and reacts 2 hours, gets coupled reaction liquid.
D, removal insolubles:
C step coupled reaction liquid is filtered the removal waste residue, collect filtrate;
E, adjustment coloured light and intensity:
D step filtrate is carried out coloured light, intensity adjustment;
F, drying:
The look liquid of e step is joined in the feed liquid preheater, adjust 210 ℃ of inlet temperatures, carry out spraying drying, get the finished product 100.5Kg with 95-100 ℃ temperature out.
The application performance table of the nylon active red of the formula of embodiment 1 (II)
The preparation method of dyestuff of the present invention and dyestuff thereof is described by specific embodiment.Those skilled in the art can use for reference links such as content appropriate change raw material of the present invention, processing condition and realize corresponding other purpose, its relevant change does not all break away from content of the present invention, all similar replacements and change will become apparent to those skilled in the art that and all be regarded as comprising within the scope of the present invention.
Claims (7)
1. red nylon active dyestuff, this dyestuff is as shown in the formula the compound shown in (I):
Wherein: M is-H or basic metal that preferred as alkali is Na or K.
2. the preparation method of the described dyestuff of claim 1, this method comprises the steps:
A, condensation reaction:
Right-beta-hydroxyethyl sulfonyl aniline solution joins reaction acquisition primary condensation liquid in the cyanuric chloride solution, adds J acid then in this condensated liquid, obtains the secondary condensated liquid;
B, diazotization reaction:
In P-aminoazobenzene, add hydrochloric acid soln and sodium nitrite solution, under the situation of PH＜2, react, eliminate excessive nitrite with thionamic acid then, get diazonium liquid;
C, coupled reaction:
B step gained diazonium drop is added in the secondary condensated liquid of a step, gets coupled reaction liquid;
D, removal insolubles:
C step coupled reaction liquid is filtered the removal waste residue, collect filtrate;
E, adjustment coloured light and intensity:
D step filtrate is carried out coloured light, intensity adjustment;
F, drying:
The look liquid of e step is carried out spraying drying, get formula (I) the finished product.
3. method according to claim 2, this method comprises the steps:
A, condensation reaction:
Right-beta-hydroxyethyl sulfonyl aniline solution of pH=2-5 is joined in the cyanuric chloride solution, keep T=0-15 ℃, pH=2-3.5, reacted 4-6 hour, and obtained primary condensation liquid, in this condensated liquid, add J acid then, adjust T=15-40 ℃, pH=4-6 reacted 2-4 hour, obtained the secondary condensated liquid;
B, diazotization reaction:
Add hydrochloric acid soln and sodium nitrite solution in the low temperature P-aminoazobenzene, at T=0-20 ℃, reacted 1-3 hour PH＜2, eliminates excessive nitrite with thionamic acid, gets diazonium liquid;
C, coupled reaction:
B step gained diazonium drop is added in the secondary condensated liquid of a step, keeps T=10-20 ℃, pH=5-7 reacted 1-2 hour, got coupled reaction liquid;
D, removal insolubles:
C step coupled reaction liquid is filtered the removal waste residue, collect filtrate;
E, adjustment coloured light and intensity:
D step filtrate is carried out coloured light, intensity adjustment;
F, drying:
The look liquid of e step is joined in the feed liquid preheater, adjust inlet temperature and temperature out and carry out spraying drying, get formula (I) the finished product.
4. according to the described method of claim 2-3, this method comprises the steps:
A, condensation reaction:
In dissolving vessel, add water of a small amount of end and right-beta-hydroxyethyl sulfonyl aniline, use NaHCO
3Be neutralized to pH=2-5, must right-beta-hydroxyethyl sulfonyl aniline solution; In reactor, add less water and a small amount of trash ice, add cyanuric chloride again, in the stirring, drip right-beta-hydroxyethyl sulfonyl aniline solution, T=0-15 ℃, pH=2-3.5 dropwises, and reacts 4-6 hour, obtain primary condensation liquid, in this condensated liquid, add J acid then, adjust T=15-40 ℃, pH=4-6, reacted 2-4 hour, and obtained the secondary condensated liquid;
B, diazotization reaction:
Add end water and P-aminoazobenzene in reactor, stir, add the hydrochloric acid soln and the sodium nitrite solution of trash ice and 30%, at T=0-20 ℃, reacted 1-3 hour PH＜2, eliminates excessive nitrite with thionamic acid, gets diazonium liquid;
C, coupled reaction:
B step gained diazonium drop is added in the secondary condensated liquid of a step, in the dropping process T=10-20 ℃, transfer pH=5-7 with soda ash, drip and finish, react 1-2 hour, must coupled reaction liquid;
D, removal insolubles:
C step coupled reaction liquid is filtered the removal waste residue, collect filtrate;
E, adjustment coloured light and intensity:
D step filtrate is carried out coloured light, intensity adjustment;
F, drying:
The look liquid of e step is joined in the feed liquid preheater, adjust 210 ℃ of inlet temperatures, carry out spraying drying, get formula (I) the finished product with 95-100 ℃ temperature out.
5. method according to claim 4, wherein in the primary condensation liquid preparation T=5-10 ℃, the reaction times is 5 hours.
6. method according to claim 4, wherein in the secondary condensated liquid preparation T=20-30 ℃, the reaction times is 3 hours.
7. method according to claim 4, wherein in the diazotization reaction T=5-15 ℃, the reaction times is 2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010266303XA CN102040861A (en) | 2010-08-30 | 2010-08-30 | Reactive red dye suitable for dyeing nylon and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010266303XA CN102040861A (en) | 2010-08-30 | 2010-08-30 | Reactive red dye suitable for dyeing nylon and preparation method thereof |
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| CN102040861A true CN102040861A (en) | 2011-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329521A (en) * | 2011-09-29 | 2012-01-25 | 天津德凯化工股份有限公司 | Red reactive dye and preparation method thereof |
Citations (8)
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|---|---|---|---|---|
| JPS61272269A (en) * | 1985-05-28 | 1986-12-02 | Mitsubishi Chem Ind Ltd | Disazo compound |
| DE3833380A1 (en) * | 1988-10-01 | 1990-04-19 | Bayer Ag | Disazo class reactive dyes |
| US5354849A (en) * | 1991-03-30 | 1994-10-11 | Sandoz Ltd. | Sulfo group-containing disazo compounds containing substituted amino-1,3,5-triazinil or- chloropyrimidyl |
| US5359042A (en) * | 1992-05-06 | 1994-10-25 | Bayer Aktiengesellschaft | 2,4-diamino-6-fluorotriazine diazo reactive dyestuffs |
| US5428141A (en) * | 1991-12-05 | 1995-06-27 | Bayer Aktiengesellschaft | Azo dyestuffs containing fluorotriazinyl and vinylsulfonylmethyl-type reactive groups |
| JPH101618A (en) * | 1996-06-17 | 1998-01-06 | Sumitomo Chem Co Ltd | Bis-azo compound and dyeing or printing of textile material by using the same |
| JP2002105350A (en) * | 2000-10-04 | 2002-04-10 | Sumitomo Chem Co Ltd | Bisazo compound or salt thereof, and application of the same to textile material |
| CN1884388A (en) * | 2005-06-24 | 2006-12-27 | 明德国际仓储贸易(上海)有限公司 | Red disazo dyes |
-
2010
- 2010-08-30 CN CN201010266303XA patent/CN102040861A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61272269A (en) * | 1985-05-28 | 1986-12-02 | Mitsubishi Chem Ind Ltd | Disazo compound |
| DE3833380A1 (en) * | 1988-10-01 | 1990-04-19 | Bayer Ag | Disazo class reactive dyes |
| US5354849A (en) * | 1991-03-30 | 1994-10-11 | Sandoz Ltd. | Sulfo group-containing disazo compounds containing substituted amino-1,3,5-triazinil or- chloropyrimidyl |
| US5428141A (en) * | 1991-12-05 | 1995-06-27 | Bayer Aktiengesellschaft | Azo dyestuffs containing fluorotriazinyl and vinylsulfonylmethyl-type reactive groups |
| US5359042A (en) * | 1992-05-06 | 1994-10-25 | Bayer Aktiengesellschaft | 2,4-diamino-6-fluorotriazine diazo reactive dyestuffs |
| JPH101618A (en) * | 1996-06-17 | 1998-01-06 | Sumitomo Chem Co Ltd | Bis-azo compound and dyeing or printing of textile material by using the same |
| JP2002105350A (en) * | 2000-10-04 | 2002-04-10 | Sumitomo Chem Co Ltd | Bisazo compound or salt thereof, and application of the same to textile material |
| CN1884388A (en) * | 2005-06-24 | 2006-12-27 | 明德国际仓储贸易(上海)有限公司 | Red disazo dyes |
Non-Patent Citations (1)
| Title |
|---|
| 王建平: "《REACH法规与生态纺织品》", 31 August 2009, article "生态环保型和节能减排型染料的开发", pages: 421-422 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102329521A (en) * | 2011-09-29 | 2012-01-25 | 天津德凯化工股份有限公司 | Red reactive dye and preparation method thereof |
| CN102329521B (en) * | 2011-09-29 | 2016-06-08 | 天津德凯化工股份有限公司 | A kind of red reactive dyes and preparation method thereof |
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Application publication date: 20110504 |