CN1177098C - Printing paste with active dye and its prepn - Google Patents
Printing paste with active dye and its prepnInfo
- Publication number
- CN1177098C CN1177098C CNB021100721A CN02110072A CN1177098C CN 1177098 C CN1177098 C CN 1177098C CN B021100721 A CNB021100721 A CN B021100721A CN 02110072 A CN02110072 A CN 02110072A CN 1177098 C CN1177098 C CN 1177098C
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- CN
- China
- Prior art keywords
- starch
- printing paste
- sodium alginate
- active dye
- reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The present invention relates to printing paste with a reactive dye, which is composed of high-replacement carboxymethyl cornstarch and 20 wt% to 70 wt% of sodium alginate and is prepared by the reaction of the principal raw materials of the cornstarch, the sodium alginate, chloroacetic acid and sodium hydrate in a heterogeneous phase one-step method. Compared with sodium alginate paste, the printing paste with a reactive dye has the characteristics of approximate water retention, high colour yield, good acid and alkali resistance and stability, excellent flow performance, easy acquirement of the raw materials, simple and easy preparation technology, mild reaction condition, low product price and obvious reduction of the printing cost of the reactive dye so as to have good popularization prospect.
Description
The present invention relates to a kind of textile auxiliary, particularly relate to a kind of printing paste with active dye.
Sodium alginate is the desirable thickener of printing with reactive dye, but along with the discovery of its physiological activity and the application in food industry, the rise in price of sodium alginate in recent years is a lot, has increased the printing with reactive dye production cost greatly.
The purpose of this invention is to provide a kind of raw material be easy to get, cheap, printing performance is better than the printing paste with active dye of sodium alginate, it can overcome the shortcoming that the sodium alginate printing gum is in short supply, price is high.
A kind of printing paste with active dye is characterized in that it is made up of high-substitution carboxymethyl cornstarch and sodium alginate, and the latter's percetage by weight is 20-70.
A kind of preparation method of printing paste with active dye, it is characterized in that starch is dispersed in the ethanol, add NaOH again and carry out the silk reaction, control reactant liquor pH value is 10-12, drip the monoxone ethanolic solution, adding NaOH again makes the pH value of reactant liquor greater than 10, the conditioned reaction temperature is to 50-55 ℃, carry out carboxymethylation reaction, reactant liquor is reduced to room temperature, be neutralized to neutrality with glacial acetic acid, obtain the carboxymethyl starch with high substitution degree alcohol dispersion liquid, add the solid sodium alginate powder again, fully stir, filter, washing, dry, crushing screening gets the new reactive dyes printing gum.
The invention has the advantages that with printing paste with active dye of the present invention and substitute the cost that the sodium alginate printing gum can reduce printing paste with active dye significantly, and has higher relatively tinctorial yield, can in cold water, dissolve, easy to operate, have the sticking characteristics of low dense height, compare, have good viscosity stabilization performance, rheological property with simple sodium alginate, and raw material is easy to get, and preparation technology is simple.
Further specify the present invention below in conjunction with example.
In the there-necked flask that thermometer and agitator are housed, add 40g cornstarch (industrial goods moisture≤14%) and 80ml industrial alcohol (〉=95%), stirring fully disperses starch, the NaOH that adds after 10 minutes, control PH＞9 are to carry out the silk reaction under 30-35 ℃ in temperature.Behind the reaction 30-60min, be added dropwise to the 35g chloroacetic acid solution that is dissolved in the 60ml industrial alcohol, then, the repeated hydrogenation sodium oxide molybdena makes PH＞10 of reactant liquor, and the conditioned reaction temperature is carried out carboxymethylation reaction to 50-55 ℃.Reacted 3 hours, reactant liquor is reduced to room temperature, reactant liquor is neutralized to neutrality with glacial acetic acid, gets the carboxymethyl starch with high substitution degree alcohol dispersion liquid.In the high-substitution carboxymethyl alcohol dispersion liquid, add the solid sodium alginate powder, stir after 30 minutes, filter, filter cake washs with 90% ethanol, behind the filtration cakes torrefaction, get printing paste with active dye of the present invention through crushing screening, wherein sodium alginate accounts for 20-70%.The mole proportioning of the preparation feedback material of carboxymethyl starch alcohol dispersion liquid is: starch: monoxone: NaOH=1: 1-2: 2-4; The consumption of solvent industry alcohol is 3-6 a times of starch consumption; Starch carboxymethylation reaction temperature range is 30-60 ℃, and reaction pressure is a normal pressure.
Printing paste with active dye outward appearance among the present invention is white or faint yellow solid powder; Sodium chloride content is less than 5%; Moisture content is less than 12%; The substitution value of carboxymethyl starch is greater than 0.88; 4% solution viscosity (20 ℃) is greater than 8500mpa.s; The water retention property of 5% the aqueous solution and, tinctorial yield close with the concentration sodium alginate soln are greater than sodium alginate.
Raw starch among the present invention is owing to contain three hydroxyls on its glucose unit, during as printing paste with active dye, REACTIVE DYES with cellulose fibre generation chemical reaction in, also with starch molecule on hydroxyl generation chemical reaction, thereby reduce its tinctorial yield.REACTIVE DYES and glucoside kinetics result of study show, hydroxyl reaction on REACTIVE DYES and the glucosides mainly occurs on the primary hydroxyl, therefore after the primary hydroxyl hydrogen on the starch molecule is replaced by carboxymethyl, prepared carboxymethyl starch with high substitution degree is used as printing paste with active dye, just can avoid the reduction of tinctorial yield.And along with the introducing of carboxyls in a large number on the starch molecule, the viscosity of carboxymethyl starch is greatly improved, and also just is fit to be used as printing paste with active dye more.Compare with the sodium alginate thickener, although the tinctorial yield height of carboxymethyl starch with high substitution degree thickener, antiacid alkaline stability, rheological property are better relatively, water retention property is relatively poor relatively, when stamp, compares easy imbibition with sodium alginate, causes decorative pattern unintelligible.Through experiment, we find to add an amount of sodium alginate in carboxymethyl starch with high substitution degree, just can obviously improve its water retention property.The present invention is exactly according to above-mentioned result of study, has prepared a kind of new reactive dyes printing gum.
Claims (3)
1. a printing paste with active dye is characterized in that it is made up of high-substitution carboxymethyl cornstarch and sodium alginate, and the latter's percetage by weight is 20-70%.
2. the preparation method of a printing paste with active dye, it is characterized in that starch is dispersed in the ethanol, add NaOH and carry out the silk reaction, control reactant liquor pH value is 9-12, drip chloroacetic ethanolic solution, adding NaOH again makes the pH value of reactant liquor greater than 10, the conditioned reaction temperature is carried out carboxymethylation reaction to 50-55 ℃, and reactant liquor is reduced to room temperature, be neutralized to neutrality with glacial acetic acid, obtain the carboxymethyl starch with high substitution degree alcohol dispersion liquid, add the solid sodium alginate powder again, fully stir, filter, washing, dry, pulverize, sieve, get printing paste with active dye.
3. method as claimed in claim 2 is characterized in that the mole proportioning of the preparation feedback material of described carboxymethyl starch alcohol dispersion liquid is: starch: monoxone: NaOH=1: 1-2: 2-4; The consumption of solvent alcohol is 3-8 a times of starch consumption; Starch carboxymethylation reaction temperature range is 30-60 ℃, and reaction pressure is a normal pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021100721A CN1177098C (en) | 2002-02-05 | 2002-02-05 | Printing paste with active dye and its prepn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021100721A CN1177098C (en) | 2002-02-05 | 2002-02-05 | Printing paste with active dye and its prepn |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1436891A CN1436891A (en) | 2003-08-20 |
| CN1177098C true CN1177098C (en) | 2004-11-24 |
Family
ID=27628159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021100721A Expired - Fee Related CN1177098C (en) | 2002-02-05 | 2002-02-05 | Printing paste with active dye and its prepn |
Country Status (1)
| Country | Link |
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| CN (1) | CN1177098C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892602B (en) | 2010-07-19 | 2012-01-11 | 上海长胜纺织制品有限公司 | Cold-transfer printing thickener, printing paste thereof and preparation method thereof |
| CN102605647A (en) * | 2012-02-07 | 2012-07-25 | 西安工程大学 | Preparation method of reactive dye printing paste for printing fine patterns |
| CN103161081A (en) * | 2013-03-18 | 2013-06-19 | 天津本禾生物科技有限公司 | Special dispersion rubber powder for natural textile dye printing and preparation method of same |
| CN103437222B (en) * | 2013-07-29 | 2015-06-03 | 湖州申祥丝织有限责任公司 | Cellulose fiber reactive dye printing color paste |
| CN103669034B (en) * | 2013-11-22 | 2015-09-02 | 北京中纺化工股份有限公司 | A kind of reactive printing thickener and preparation method thereof |
| CN103924457B (en) * | 2014-04-17 | 2016-04-06 | 苏州润弘贸易有限公司 | A kind of production technology of dyeing paste |
| CN103924456B (en) * | 2014-04-17 | 2016-04-06 | 苏州润弘贸易有限公司 | A kind of production technology of reactive printing thickener |
| CN107100019A (en) * | 2017-05-31 | 2017-08-29 | 浙江山川科技股份有限公司 | A kind of printing gum for spun rayon piece goods |
| CN108517703A (en) * | 2018-05-11 | 2018-09-11 | 临清三和纺织集团有限公司 | A kind of preparation for the resist printing White-resistant pulp of reactive dye physics |
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2002
- 2002-02-05 CN CNB021100721A patent/CN1177098C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1436891A (en) | 2003-08-20 |
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