CN1227407C - Method for preparing printing paste of compound modified starch with adjustable viscosity - Google Patents
Method for preparing printing paste of compound modified starch with adjustable viscosity Download PDFInfo
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- CN1227407C CN1227407C CN 200410014343 CN200410014343A CN1227407C CN 1227407 C CN1227407 C CN 1227407C CN 200410014343 CN200410014343 CN 200410014343 CN 200410014343 A CN200410014343 A CN 200410014343A CN 1227407 C CN1227407 C CN 1227407C
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Abstract
The present invention relates to a preparation method and the application of printing paste of compound modified starch with adjustable viscosity, which belongs to the technical field of modified starch. The present invention provides a preparation method of printing paste of compound modified starch with adjustable viscosity, wherein the printing paste of compound modified starch is formed by compounding carboxymethyl starch and crosslinking-carboxymethyl starch, and the compound modified starch is used for the printing paste of a reactive dye on textiles. The compound modified starch has the advantages of large adjustable range of viscosity, favorable pasting and printing, obvious reduction of the printing cost of the reactive dye and good solubility in water, thermal stability, compatibility with other chemical auxiliary materials and paste abrasion resistance, and can partially replace sodium alginate paste.
Description
Technical field
The preparation method and the application of the composite converted starch printing gum that a kind of viscosity is adjustable, this printing gum are the composite modified starchs that a kind of carboxymethyl starch and crosslinked-carboxymethyl starch complex obtain, and belong to technical field of modified starch.
Background technology
Printing gum is a kind of macromolecular compound that plays thickening power in print paste, general equal energy water-soluble or in water fully swelling, dispersion and form the colloidal solution of stiff.It determines the fineness of stamp behavior in service, dyestuff surface tinctorial yield, pattern profile etc. as the main component of print paste.Printing gum commonly used has sodium alginate, imperial glue, gum Arabic etc., but price is more expensive.Therefore seeking close, the moderate product of a kind of performance, is very necessary.
Carboxymethyl starch is a kind of water soluble anion type starch product, substitution value is big, on the starch polymer the negative charge of being with many, because static repels intermolecular generation, stretching, extension can both contact each carboxyl fully with hydrone in water, and produces attraction, thereby the thickener water-retaining property is strengthened, water-soluble increase, and soluble in water, can be used for the cotton fabric printing dyestuff by the instead of part sodium alginate.Sodium alginate and carboxymethyl starch are dissimilar fluids, and sodium alginate is a Newton type fluid, and anti-dilution property is good, carboxymethyl starch is a pseudoplastic fluid, viscosity changes greatly during dilution, wayward when using needed viscosity, give and bring certain trouble when using.
Summary of the invention
The object of the present invention is to provide a kind of etherificate converted starch and crosslinked-etherificate converted starch to carry out preparation method and application thereof composite and the composite modified starch that obtains.Obtain single carboxymethyl starch with the chloroacetic acid reaction by starch in alcoholic solution and under the alkali condition earlier, undertaken under alkali condition, obtaining crosslinked-etherificate converted starch after the cross-linking reaction by crosslinking agent and starch again with chloroacetic acid, two kinds of converted starches are according to the requirement of the different clothes of textile printing and dyeing, carry out the composite of different proportion, the printing paste with active dye that can regulate as a kind of viscosity.
Technical scheme of the present invention: a kind of preparation method of composite converted starch printing gum be with a kind of carboxymethyl starch and a kind of crosslinked-carboxymethyl modified starch is composite and make, and makes it have etherificate simultaneously, the characteristic of crosslinked-etherification starch.
The synthetic method of described carboxymethyl starch, be to be raw material with starch, with ethanol is reaction medium, be deployed into mass percentage concentration and be 30～50% starch emulsion, add chloroacetic acid, use adjusting PH with base, react under alkali condition, reactant makes carboxymethyl starch through washing, dehydration, drying.
Described crosslinked-preparation method of carboxymethyl starch, be to be raw material with starch, with ethanol is reaction medium, be mixed with mass percentage concentration and be 30～50% starch emulsion, disposable adding crosslinking agent and chloroacetic acid, use adjusting PH with base, react under alkali condition, reactant makes crosslinked-carboxymethyl starch through washing, dehydration, drying.
The composite of described two kinds of converted starches is meant according to the different requirements of printing gum to sticking with paste, and changes the relative scale of two kinds of starch.Carboxymethyl starch: crosslinked-carboxymethyl starch complex mass percent is 20～80%: 80～20%.
The used etherifying agent of etherificate sex change can be chloroacetic acid etc.
The used crosslinking agent of crosslinked sex change can be epoxychloropropane, formaldehyde, phosphorus oxychloride, sodium trimetaphosphate etc.
The process conditions of key reaction etherification reaction and crosslinked-etherification reaction are: the reaction time was controlled between 1～4 hour, reaction temperature is controlled between 25～50 ℃, the pH value is controlled between 8.5～13.0, add chemical reagent and all under agitation carry out with reaction, reactant gets product through ethanol washing, Water Extraction Machinery dehydration, pneumatic conveying drying.
The application of described composite converted starch is mainly used in the printing gum that REACTIVE DYES is gone up in weaving.
Beneficial effect of the present invention: the printing gum that the present invention makes is compared with sodium alginate with existing carboxymethyl starch printing gum, has following advantage:
1, because this printing gum is the compound of composite modified starch and single converted starch, can partly replace the sodium alginate thickener, so can obviously reduce the printing with reactive dye cost.
2, this printing gum is compared with the carboxymethyl starch of single sex change, has the silk of paste weak point, and the viscosity adjustable range is big, is beneficial to starching and stamp.
3, this built-up starch is to be that the basis makes with the carboxymethyl starch, and carboxymethyl starch has the characteristic of dissolving in warm water, belongs to normal-temperature dissolution type starch.When it used as thickener, modulation was convenient.
4, the carboxymethyl starch thickener is anionic property in the aqueous solution, and it sticks with paste the Heat stability is good of liquid, and is good with the compatibility of other chemical adjuvant.
5, single carboxymethyl starch thickener anti-wear performance is poor, and the crosslinked starch that contains in the built-up starch makes its performance optimization.
The specific embodiment:
Embodiment 1:
Synthesizing of carboxymethyl starch, with starch is raw material, with ethanol is reaction medium, is mixed with mass percentage concentration and is 30～50% starch emulsion, adds the chloroacetic acid etherifying agent that accounts for starch quality 4～10%, use adjusting PH with base, carry out etherification reaction in the scope of pH8.5～13, etherification temperature is 40 ℃, 2 hours etherificate time, reinforced and reaction is all under agitation carried out, and product is a carboxymethyl starch.
Synthesizing of crosslinked-carboxymethyl starch, with starch is raw material, with ethanol is reaction medium, be mixed with mass percentage concentration and be 30～50% starch emulsion, add the sodium trimetaphosphate that accounts for starch quality 0.3～3%, add the chloroacetic acid etherifying agent that accounts for starch quality 4～10%, use adjusting PH with base, in the scope of pH8.5～13, carry out crosslinked-etherification reaction, crosslinked-etherification temperature is 45 ℃, crosslinked-3 hours etherificate time, reinforced and reaction is all under agitation carried out, and product is crosslinked-carboxymethyl starch.
Carboxymethyl starch: crosslinked-carboxymethyl starch complex mass percent is 30%: 70%.
Embodiment 2:
Crosslinking agent is used phosphorus oxychloride instead, and all the other conditions are with embodiment 1.
Embodiment 3:
Carboxymethyl starch: crosslinked-carboxymethyl starch complex mass percent is 70%: 30%, and all the other conditions together
Embodiment 1.
Claims (5)
1, a kind of preparation method of composite converted starch printing gum is characterized in that being formed by carboxymethyl starch and crosslinked-carboxymethyl starch complex;
(a) carboxymethyl starch is synthetic: with starch is raw material, is reaction medium with ethanol, is etherifying agent with the chloroacetic acid, under alkali condition, carries out etherification reaction, and reactant is through washing, dehydration, dry and make;
(b) crosslinked-carboxymethyl starch is synthetic: with starch is raw material, is reaction medium with ethanol, and disposable adding crosslinking agent and chloroacetic acid etherifying agent under alkali condition, carry out crosslinked-etherification reaction, and reactant is through washing, dehydration, dry and make;
(c) carboxymethyl starch and crosslinked-carboxymethyl starch are carried out the composite composite converted starch printing gum that obtains in proportion.
2, preparation method according to claim 1, it is characterized in that the synthetic of carboxymethyl starch, is raw material with starch, is reaction medium with ethanol, be mixed with mass percentage concentration and be 30%～50% starch emulsion, add starch quality than 4%～10% chloroacetic acid etherifying agent, use adjusting PH with base, in the scope of pH8.5～13, carry out etherification reaction, etherification temperature is 25～50 ℃, 1～4 hour etherificate time, reinforced and reaction is all under agitation carried out, and product is a carboxymethyl starch.
3, preparation method according to claim 1, it is characterized in that the synthetic of crosslinked-carboxymethyl starch, with starch is raw material, with ethanol is reaction medium, be mixed with mass percentage concentration and be 30%～50% starch emulsion, add starch quality than 0.3%～3% crosslinking agent, add starch quality than 4%～10% chloroacetic acid etherifying agent, use adjusting PH with base, carry out crosslinked-etherification reaction in the scope of pH8.5～13, crosslinked-etherification temperature is 25～50 ℃, and is crosslinked-1～4 hour etherificate time, reinforced and reaction is all under agitation carried out, and product is crosslinked-carboxymethyl starch.
4, preparation method according to claim 3 is characterized in that used crosslinking agent is epoxychloropropane, formaldehyde, phosphorus oxychloride or sodium trimetaphosphate.
5, preparation method according to claim 1 is characterized in that carboxymethyl starch: crosslinked-carboxymethyl starch complex mass percent is 20%～80%: 80%～20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014343 CN1227407C (en) | 2004-03-15 | 2004-03-15 | Method for preparing printing paste of compound modified starch with adjustable viscosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410014343 CN1227407C (en) | 2004-03-15 | 2004-03-15 | Method for preparing printing paste of compound modified starch with adjustable viscosity |
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| Publication Number | Publication Date |
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| CN1563558A CN1563558A (en) | 2005-01-12 |
| CN1227407C true CN1227407C (en) | 2005-11-16 |
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| CN 200410014343 Expired - Fee Related CN1227407C (en) | 2004-03-15 | 2004-03-15 | Method for preparing printing paste of compound modified starch with adjustable viscosity |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436705C (en) * | 2006-01-16 | 2008-11-26 | 上海迪纺纺织科技有限公司 | Carrier for cold transfer printing paper and production process thereof |
| CN101768878A (en) * | 2009-01-05 | 2010-07-07 | 金军 | Composite printing paste and application thereof |
| CN101962518B (en) * | 2010-02-03 | 2012-09-05 | 内蒙古奈伦农业科技股份有限公司 | Starch bonding agent, and preparation method and use thereof |
| 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 |
| CN101974168B (en) * | 2010-11-04 | 2013-07-31 | 广州市高士实业有限公司 | Multipurpose cooked rubber powder for architectural ornaments and preparation method thereof |
| CN102433777B (en) * | 2011-11-17 | 2014-07-23 | 长胜纺织科技发展(上海)有限公司 | Preparation method of cold migration printing gum and color paste thereof |
| CN102561061A (en) * | 2011-12-31 | 2012-07-11 | 浙江红山芋家纺有限公司 | Printing thickner and preparation method thereof |
| JP6689675B2 (en) * | 2016-05-31 | 2020-04-28 | 日本食品化工株式会社 | Improved carboxymethylated starch and its use |
| CN108914626A (en) * | 2018-06-08 | 2018-11-30 | 山东拓普精化有限公司 | A kind of novel dispersion printing gum |
| CN109267383A (en) * | 2018-08-10 | 2019-01-25 | 湖北达雅生物科技股份有限公司 | Disperse stamp composite paste material and preparation method thereof |
| CN110093792A (en) * | 2019-05-23 | 2019-08-06 | 成都市山马生物科技有限公司 | A kind of high substituted carboxymethyl starch composite reactive printing gum and preparation method |
| CN111793222B (en) * | 2020-08-12 | 2023-05-26 | 东莞建泰生物科技有限公司 | Reverse control method for starch-sodium trimetaphosphate crosslinking and application thereof |
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