CN103073916A - Active blue dye and preparation method - Google Patents
Active blue dye and preparation method Download PDFInfo
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- CN103073916A CN103073916A CN 201010265157 CN201010265157A CN103073916A CN 103073916 A CN103073916 A CN 103073916A CN 201010265157 CN201010265157 CN 201010265157 CN 201010265157 A CN201010265157 A CN 201010265157A CN 103073916 A CN103073916 A CN 103073916A
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Abstract
The invention relates to an active blue dye and a preparation method. The active blue dye has a structural formula as represented by (I). The dye is a reactive dye with a deepest color and a pioneering reactive dye product currently. When the active blue dye is used for dyeing a deep color, since color bodies of the dye have different color development degrees and fit with an active group, a high color development degree and a high degree of reaction between the dye and fibers are realized.
Description
Technical field
The invention belongs to the reactive dyestuffs field, particularly relate to a kind of active orchid of reactive dyestuffs that is applicable to pure cotton dyeing and preparation method thereof.
Background technology
Cotton fibre is the textile fibres of output maximum in the world, and reactive dyestuffs are cotton fibre with the best dyestuff of dyeing behavior.Compare with other Dyestuffs Used for Cellulose Fibres, it is complete that reactive dyestuffs have chromatogram, lovely luster, and the advantage such as wet colour fastness is good, and application art is easy, and suitability is strong, and price is relatively cheap adds not contain carcinogenic aromatic amine in the structure relative environmental protection.The reactive dyestuffs base type of China's development and production has nearly 20 kinds of X-type, K type, KM type, KE type, KP type, KD type, KN type, M type, EF type, ME type, Type B etc.Reactive dyestuffs can replace part glacial dye, thioxine dyes and vat dyes, also are applicable to the printing and dyeing needs of novel cellulose fiber product.Although reactive dyestuffs history is of short duration, be expected most development prospect at present, become production and competitively develop, use expanding day, well received dye, it is taken the course of its own in Dyestuffs Used for Cellulose Fibres, is the emphasis of development and use.But reactive dyestuffs traditional dyeing technique mainly is to exhaust to dye dyeing and can cause serious environmental pollution, and its problem of environmental pollution all is common concern and problem inferior to be solved all the time.Exhaust and dye in the dyeing course, fiber immerses in the dye bath, relies on dyestuff that the avidity of fiber is adsorbed onto on the fiber, then to the fibrous inside diffusion, to the most of dye transfer of dye bath to fiber on till.
At present will be to all improving gradually, so need to constantly research and develop the high dissimilar reactive dyestuffs of performance to performance requriements and the environmental protection of dyestuff.
Summary of the invention
For solving the problems of the technologies described above, the invention provides the blue dye well its preparation method of a kind of activity, active blue for having the dyestuff of following structural formula (I):
M is-H or basic metal.Basic metal is preferably Na.
The preparation of the compound of said structure formula (I) comprises the steps:
(a) diazotization reaction:
Sulfonation para-ester is dissolved in the water, stirs, 30% quantitative hydrochloric acid soln is added, add rubble ice, make that mass/volume concentration is 10-15% in its solution, add again 30% sodium nitrite solution, make PH in the reaction soln＜2.0, after soaking, starch potassium iodide paper is little blueness, T=0-5 ℃, reacted 2 hours, eliminate excessive nitrous acid with thionamic acid, get diazo liquid
(b) acid coupling reaction
The sour sodium hydroxide solution with 20%-40% of H is neutralized to PH=6.0-7.0, makes its whole dissolvings, join in the diazo liquid of step (a) acquisition, control T=0-5 ℃, reacted 6-10 hour, get acid coupling liquid.
(c) diazotization reaction:
With 2-amino naphthalenes-3, the 6-disulfonic acid dissolves in water, then adds 30% hydrochloric acid soln, adds rubble ice, make that mass/volume concentration is 10-15% in its solution, add again 30% sodium nitrite solution, make PH in the reaction soln＜2, be little blueness after potassium iodide starch paper soaks, T=0-5 ℃, reacted 2 hours, and eliminated excessive nitrous acid with thionamic acid, get diazo liquid;
(d) alkaline coupling reaction
The acid coupling liquid that step (b) is obtained is adjusted into 20-25 ℃, and the diazo liquid that step (c) is obtained joins in this acid coupling liquid, and the PH=6.5-7.0 with soda ash accent solution is incubated 2.0-3.0 hour, gets alkaline coupling liquid;
(e) rubble ice is joined in the alkaline coupling liquid, adjusting temperature is 10-15 ℃, adds 30% sodium hydroxide solution, adjusts pH=9-9.5, keeps reaction 1-3 hour, then adjusts pH=6-7 with 30% hydrochloric acid soln;
(f) remove insolubles: the solution that will (e) step obtains joins and separates in the solid-liquid separator, removes waste residue, and collection filtrate is carried out spraying drying, namely obtains the dye composition of structural formula (I).
Above-claimed cpd all is compounds well known in the prior art, can buy from the market to obtain.
It is a kind of for the textile composition of dyeing that the present invention also provides, and said composition comprises dye composition and the dyestuff carrier of formula (I).
The present invention also provides the dye composition of above-mentioned formula (I) to be used for the textile purposes of dyeing.
The above-mentioned dyestuff that the present invention develops is the dark type reactive dyestuffs of a kind of spy, is the frontier nature product of current reactive dyestuffs.When above-mentioned dyes is dark, because the color development degree of its color bodies is different, adapt between color bodies and the active group, the color development degree is high, and is high with the fiber-reactive degree.
Embodiment
In order to understand the present invention, the below further specifies the present invention with embodiment, but does not limit the present invention.
The preparation of embodiment 1 formula (II) dye composition
A. sulfonation para-ester diazotization reaction:
In reactor, add end water, add 225 kilograms of sulfonation para-ester, stirring and dissolving, quantitative 30% hydrochloric acid soln is added, add rubble ice, make that mass/volume concentration is 15% in its solution, add again 30% sodium nitrite solution, make PH in the reaction soln＞2.0, be little blueness after starch potassium iodide paper soaks, T=0-5 ℃, reacted 2 hours, eliminate excessive nitrous acid with thionamic acid, treat acid coupling, get diazo liquid;
B. acid coupling reaction
With 258.8 kilograms of H acid, with in 30% the sodium hydroxide solution and PH=6.0-7.0, make its whole dissolvings.Join in the sulfonation para-ester diazo liquid, control T=0-5 ℃, reacted 7 hours, get acid coupling liquid;
C.2-amino naphthalenes-3, the diazotization reaction of 6-disulfonic acid:
In reactor, add end water, add 2-amino naphthalenes-3,300 kilograms of dissolvings of 6-disulfonic acid, 30% quantitative hydrochloric acid soln adds, add rubble ice, make that mass/volume concentration is 15% in its solution, add again 30% sodium nitrite solution, make PH in the reaction soln＜2, be little blueness after potassium iodide starch paper soaks, T=0-5 ℃, reacted 2 hours, eliminate excessive nitrous acid with thionamic acid, get diazo liquid;
D. alkaline coupling reaction
Acid coupling liquid is adjusted 25 ℃ of temperature, and with 2-amino naphthalenes-3, the diazo liquid of 6-disulfonic acid adds in the acid coupling liquid, and the PH=6.5-7.0 with soda ash accent solution is incubated 2 hours.Terminal point with its reaction of TCL plate analysis.
E. rubble ice is joined in the alkaline coupling thing, adjusts 10-15 ℃ of temperature, add 30% sodium hydroxide solution, adjust pH=9-9.5, kept 2 hours, then adjust pH=6-7 with 30% hydrochloric acid soln,
F. remove insolubles: the solution of e step is joined in the solid-liquid separator separate, remove waste residue, collect filtrate, carry out the dyestuff that spraying drying gets top formula (II), obtain 1300 kilograms of dyestuff finished products.
The application performance table of the textile cotton of the dyeing of embodiments of the invention 1:
Method of the present invention is described by specific embodiment.Those skilled in the art can use for reference the 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 deemed to be included within the scope of the present invention.
Claims (5)
1. active blue dyestuff with following structural formula (I):
M is-H or basic metal.
2. dyestuff according to claim 1, wherein basic metal is Na.
3. the preparation method of the described dyestuff of claim 2, the method comprises the steps:
(a) diazotization reaction:
Sulfonation para-ester is dissolved in the water, stirs, 30% quantitative hydrochloric acid soln is added, add rubble ice, make that mass/volume concentration is 10-15% in its solution, add again 30% sodium nitrite solution, make PH in the reaction soln＜2.0, after soaking, starch potassium iodide paper is little blueness, T=0-5 ℃, reacted 2 hours, eliminate excessive nitrous acid with thionamic acid, get diazo liquid
(b) acid coupling reaction
The sour sodium hydroxide solution with 20%-40% of H is neutralized to PH=6.0-7.0, makes its whole dissolvings, join in the diazo liquid of step (a) acquisition, control T=0-5 ℃, reacted 6-10 hour, get acid coupling liquid.
(c) diazotization reaction:
With 2-amino naphthalenes-3, the 6-disulfonic acid dissolves in water, then adds 30% hydrochloric acid soln, adds rubble ice, make that mass/volume concentration is 10-15% in its solution, add again 30% sodium nitrite solution, make PH in the reaction soln＜2, be little blueness after potassium iodide starch paper soaks, T=0-5 ℃, reacted 2 hours, and eliminated excessive nitrous acid with thionamic acid, get diazo liquid;
(d) alkaline coupling reaction
The acid coupling liquid that step (b) is obtained is adjusted into 20-25 ℃, and the diazo liquid that step (c) is obtained joins in this acid coupling liquid, and the PH=6.5-7.0 with soda ash accent solution is incubated 2.0-3.0 hour, gets alkaline coupling liquid;
(e) rubble ice is joined in the alkaline coupling liquid, adjusting temperature is 10-15 ℃, adds 30% sodium hydroxide solution, adjusts pH=9-9.5, keeps reaction 1-3 hour, then adjusts pH=6-7 with 30% hydrochloric acid soln;
(f) remove insolubles: the solution that will (e) step obtains joins and separates in the solid-liquid separator, removes waste residue, and collection filtrate is carried out spraying drying.
4. one kind is used for the textile composition of dyeing, and said composition comprises claim 1 or 2 described dyestuffs and dyestuff carrier.
5. claim 1 or 2 described dyestuffs are used for the textile purposes of dyeing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010265157 CN103073916A (en) | 2010-08-27 | 2010-08-27 | Active blue dye and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010265157 CN103073916A (en) | 2010-08-27 | 2010-08-27 | Active blue dye and preparation method |
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| Publication Number | Publication Date |
|---|---|
| CN103073916A true CN103073916A (en) | 2013-05-01 |
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| CN 201010265157 Pending CN103073916A (en) | 2010-08-27 | 2010-08-27 | Active blue dye and preparation method |
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| CN (1) | CN103073916A (en) |
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2010
- 2010-08-27 CN CN 201010265157 patent/CN103073916A/en active Pending
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Application publication date: 20130501 |