CN104387796B - A kind of reactive dye and preparation method thereof - Google Patents
A kind of reactive dye and preparation method thereof Download PDFInfo
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- CN104387796B CN104387796B CN201410505099.0A CN201410505099A CN104387796B CN 104387796 B CN104387796 B CN 104387796B CN 201410505099 A CN201410505099 A CN 201410505099A CN 104387796 B CN104387796 B CN 104387796B
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Abstract
The present invention relates to a kind of reactive dye and preparation method thereof, the structural formula of the reactive dye is as follows:
Description
Technical field
The invention belongs to dye chemical industry technical fields, are related to dyestuff chemistry structure and preparation method thereof more particularly to gorgeous indigo plant
Color reactive dye structure and preparation method thereof.
Background technique
Reactive dye bright in color light, wet fastness are good, have its performance advantage, but also have shortcoming, degree of fixation, alkali resistance and
Light fastness is generally lower, especially blue Series Reactive Dyes, and the deficiency is more obvious.Therefore it is external for degree of fixation, it is resistance to
The performances such as alkalinity and light fastness develop the blue active dye containing heterocycle chromogen in succession, but alkali resistance still can not expire
Sufficient cold pad--batch requirement, and solubility is affected, blue active dye prepared by the present invention not only increase degree of fixation, alkaline-resisting
Property and light fastness (light fastness reaches 6-7 grades), also improve solubility, with the obvious advantage is alkali resistance, be can satisfy cold
Roll the requirement of heap strong basicity.
US 4629788 discloses a kind of naphthalene nucleus β bit amino derivative dye, and present invention novelty develops a kind of naphthalene nucleus α
Bit amino derivative, performance advantage is more obvious, and alkali resistance and light fastness have new raising again, can be adapted for cold rolling completely
The high concentration strong basicity requirement of heap dyeing, light fastness is half grade high compared with β bit derivant, and color development degree and degree of fixation are higher by 8% or more,
In addition the present invention is the ideal blue dyestuff for substituting active blue 19.
Another innovative point of the invention is sulfonic introducing, is not introduced in advance on naphthalene derivative, is being contaminated
It is introduced in material chromogen synthesis process, i.e. esterification, closed loop, sulfonation substantially reduces the complexity of technique process with completion is bathed.
Summary of the invention
The object of the present invention is to provide a kind of blue active dyes and preparation method thereof.Blue active dye prepared by the present invention
Material not only increases degree of fixation, alkali resistance and light fastness, also improves solubility, that with the obvious advantage is alkali resistance, Neng Gouman
Sufficient cold pad--batch strong basicity requirement.
The technical solution adopted by the present invention are as follows:
A kind of blue active dye, the structural formula of the blue active dye as shown in formula (i) or formula (ii):
The present invention also provides the preparation methods of above-mentioned blue active dye, include the following steps:
(1) it is condensed
Bottom water is added in 1000ml beaker, adds
In one of which, be warming up to 60 DEG C, be gradually added into tetrachloroquinone, use NaHCO3PH=6-8 is adjusted, time general control is added
In 0.5-2 hours, temperature controls 55-65 DEG C, after reaction, is cooled to 30 DEG C hereinafter, 2-3 is washed with water in filtering, filter cake
It is secondary, in 60-80 DEG C of drying, obtain condensation product dry product；
(2) closed loop, esterification, sulfonation
In 500ml four-hole bottle, the oleum of 20% concentration is added, above-mentioned condensation product dry product is slowly added into, with cooling
Water cooling, charge temperature≤30 DEG C；It finishes holding and is slowly added into potassium peroxydisulfate (K again in 2 hours2S2O8) 30-60 DEG C of temperature of control,
It feed time 3-8 hours, finishes, is kept for 2 hours, add liquid SO3, and in 60-100 DEG C holding 2-4 hours, it is anti-to obtain sulfonation
Liquid is answered, by the sulfonating reaction liquid cooling water temperature to 30 DEG C hereinafter, to be diluted.
(3) it dilutes, neutralize
Above-mentioned sulfonating reaction liquid is diluted in mixture of ice and water, temperature≤0 DEG C, dilutes the complete KCl that is added and saltout, when saltouing
Between 2-3 hours, filtering, filter cake is beaten with water, uses NaHCO3Adjust pH=5-7, continue to be saltoutd with KCl, filter, filtration cakes torrefaction at
Product.
Possessed by of the invention the utility model has the advantages that
Blue active dye prepared by the present invention not only increases degree of fixation, alkali resistance and light fastness, also improves molten
Xie Du, with the obvious advantage is alkali resistance, can satisfy the requirement of cold pad--batch strong basicity.Blue active dye of the present invention be suitable for cotton,
The dyeing of fiber crops, wool fibre.
Specific embodiment
The present invention is further explained in the light of specific embodiments, but the scope of protection of the present invention is not limited.
Embodiment 1
A kind of blue active dye, the structural formula of the blue active dye are shown in formula (I):
The preparation method of formula (I) blue active dye, includes the following steps:
500ml bottom water 65g is added in 1000ml beaker60 DEG C are warming up to, tetrachloro is gradually added into
Benzoquinones 29.9g, uses NaHCO3PH=6-8 is adjusted, time general control is added at 1 hour, temperature controls 55-65 DEG C.Reaction knot
Shu Hou is cooled to 30 DEG C hereinafter, filtering, and filter cake is washed with water 3 times, in 60-80 DEG C of drying, obtains condensation product dry product.
In 500ml four-hole bottle, the oleum 300g of 20% concentration is added, is slowly added into above-mentioned condensation product dry product
70.7g, with cooling water temperature, charge temperature≤30 DEG C.Holding 2 hours is finished, starts to be slowly added into 54gK2S2O8Control temperature
It 30-60 DEG C, feed time 4 hours, finishes, is kept for 2 hours.16gSO is added dropwise into the four-hole bottle3Liquid, and in 60-100 DEG C
Keep 2 hours, with cooling water temperature to 30 DEG C hereinafter, sulfonating reaction liquid, it is to be diluted.
Above-mentioned sulfonating reaction liquid is diluted in mixture of ice and water, temperature≤0 DEG C.Dilution, which is finished, is added total volume 20%
KCl saltouts (dilution total volume V*10%=KCl additional amount), and stirring is saltoutd 3 hours.Filtering, filter cake are beaten with 400ml water,
Use NaHCO3PH=5-7 is adjusted, the KCl that liquor capacity 7% is added saltouts 3 hours, filters, and filter cake obtains formula in 60-80 DEG C of drying
(III) blue active dye.
The performance of the dyestuff of embodiment 1 is as follows:
Embodiment 2
It will be in embodiment 1It replaces with
Other steps obtain the blue active dye as shown in following formula (II) with embodiment 1:
The performance of the dyestuff of embodiment 2 is as follows:
Embodiment 3
A kind of dyestuff intermediate, the structural formula of the dyestuff intermediate are as follows:
The preparation method of the dyestuff intermediate, includes the following steps:
Raw material used is 4- sulfonic acid-naphthalidine -8- hydroxyl (CAS:83-64-7), is commonly called as S acid (structure b-1)
1) acetylation: 1 part of 4- sulfonic acid-naphthalidine -8- hydroxyl is added to the water mashing, is warming up to 30-40 DEG C, is added dropwise
15% (quality) sodium carbonate adjusts pH=6-6.5, is allowed to gradually dissolve；It is above by being added drop-wise in acetic anhydride 15 minutes of 1.2 parts
It in system, is kept for 30-40 DEG C of temperature, drips off holding 1 hour；After being reacted completely with chromatographic determination, room temperature is cooled to；Product is big
Amount is precipitated, and stirs 1 hour；Filter cake is obtained by filtration, filter cake is placed in 60 DEG C of ovens and dries to obtain dry product；
2) chlorosulfonation: 5 parts of chlorosulfonic acid are added into dry four-hole bottle, water-bath keeps the temperature 20 DEG C hereinafter, being slowly added to step
1) 1 part of product dry product；It is warming up to 25-30 DEG C, is kept for 4 hours；It is after being reacted completely with liquid chromatogram measuring, reaction solution is slow
It is added drop-wise to ice analysis, temperature in the beaker equipped with mixture of ice and water and remains at 0 DEG C or less；Filter cake is obtained by filtration；
3) is restored: 1.3 parts of sodium hydrogensulfites are added to the water dissolution, adjust pH=7.5-8 with NaOH (30% mass),
Ice-water bath keeps that 1 part of step 2) product being slowly added into system at 15-20 DEG C of temperature, is kept with NaOH (30% mass)
System pH=7-8；Add, persistently stir 1 hour, keep pH=7.5-8,20-25 DEG C of temperature；NaCl is added to saltout, product is big
Amount is precipitated；Filter cake is obtained by filtration；
4) hydroxyethylation: 1 part of step 3) product being beaten with water, is warming up to 55-60 DEG C, is allowed to be completely dissolved, and 60 DEG C
Under, ethylene oxide gas is passed through into system, while using H2SO4(30% mass) adjusts pH=6.8-7.2. and is continually fed into 18-20
Hour, system solution gradually has solid particle precipitation, as generation product；After liquid chromatogram measuring fully reacting, cool to
40 DEG C, filtering, it is ethoxy object that washing, which obtains product,；
5) it hydrolyzes: 1 part of step 4) product ethoxy object is added to the water mashing, with NaOH (30% mass) adjusting pH=
9-10；It is heated to 70-75 DEG C, keeps 1.5h；PH is adjusted to 6.5-7 with HCl (30% mass), ice salt bath is cooled to 0-5
DEG C, product is largely precipitated；Filter filter cake is dyestuff intermediate structure b-2.
Number described in embodiment 3 is molfraction.
Embodiment 4
4- sulfonic acid in embodiment 3-naphthalidine-8- hydroxyl is replaced with into 7- sulfonic acid-naphthalidine-5- hydroxyl, other are the same as real
Apply example 3, i.e., corresponding to be made:
Claims (2)
1. a kind of blue active dye, it is characterised in that: the structural formula of the blue active dye as shown in formula (i) or formula (ii):
2. the preparation method of blue active dye described in claim 1, characterized by the following steps:
(1) it is condensed
Bottom water is added in 1000ml beaker, addsIn
One of which is warming up to 60 DEG C, is gradually added into tetrachloroquinone, uses NaHCO3PH=6-8 is adjusted, time general control is added and exists
In 0.5-2 hours, temperature controls 55-65 DEG C, after reaction, is cooled to 30 DEG C hereinafter, filtering, and filter cake is washed with water 2-3 times,
In 60-80 DEG C of drying, condensation product dry product is obtained；
(2) closed loop, esterification, sulfonation
In 500ml four-hole bottle, the oleum of 20% concentration is added, is slowly added into above-mentioned condensation product dry product, is dropped with cooling water
Temperature, charge temperature≤30 DEG C；It finishes holding and is slowly added into potassium peroxydisulfate (K again in 2 hours2S2O8) 30-60 DEG C of temperature of control, charging
It time 3-8 hour, finishes, is kept for 2 hours, add liquid SO3, and in 60-100 DEG C holding 2-4 hours, obtain sulfonating reaction
Liquid, by the sulfonating reaction liquid cooling water temperature to 30 DEG C hereinafter, to be diluted；
(3) it dilutes, neutralize
Above-mentioned sulfonating reaction liquid is diluted in mixture of ice and water, temperature≤0 DEG C, dilutes the complete KCl that is added and saltout, saltout time 2-
3 hours, filtering, filter cake was beaten with water, used NaHCO3PH=5-7 is adjusted, continues to be saltoutd with KCl, filter, filtration cakes torrefaction obtains finished product.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB815840A (en) * | 1955-11-23 | 1959-07-01 | Cassella Farbwerke Mainkur Ag | New sulphur dyestuffs of the dioxazine series |
| EP0234778A2 (en) * | 1986-02-17 | 1987-09-02 | Sumitomo Chemical Company, Limited | Dioxazine compound having vinylsulfone type fiber reactive group |
| JPH0617047A (en) * | 1992-06-30 | 1994-01-25 | Sanyo Electric Co Ltd | Organic electroluminescent element |
| US5518825A (en) * | 1993-09-20 | 1996-05-21 | Pioneer Electronic Corporation | Organic electroluminescent device |
| CN102504585A (en) * | 2011-09-28 | 2012-06-20 | 天津德凯化工股份有限公司 | Blue active dye, preparation method and application thereof |
-
2014
- 2014-09-26 CN CN201410505099.0A patent/CN104387796B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB815840A (en) * | 1955-11-23 | 1959-07-01 | Cassella Farbwerke Mainkur Ag | New sulphur dyestuffs of the dioxazine series |
| EP0234778A2 (en) * | 1986-02-17 | 1987-09-02 | Sumitomo Chemical Company, Limited | Dioxazine compound having vinylsulfone type fiber reactive group |
| JPH0617047A (en) * | 1992-06-30 | 1994-01-25 | Sanyo Electric Co Ltd | Organic electroluminescent element |
| US5518825A (en) * | 1993-09-20 | 1996-05-21 | Pioneer Electronic Corporation | Organic electroluminescent device |
| CN102504585A (en) * | 2011-09-28 | 2012-06-20 | 天津德凯化工股份有限公司 | Blue active dye, preparation method and application thereof |
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| CN104387796A (en) | 2015-03-04 |
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