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Fatigue-resistant hydroxyethyl high-performance modified starch

A technology of modified starch and hydroxyethyl, used in the textile industry, can solve the problems of restricting the application range of non-polyvinyl alcohol size, anti-aging, anti-fatigue, high film-forming properties, etc., and achieve good elasticity and adhesion Strong, good film-forming effect

Active Publication Date: 2015-01-21
YIXING JUNDA SLURRY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some non-polyvinyl alcohol cationic slurries are also disclosed in the prior art, but in high-quality and special application fields, the existing slurries still have deficiencies in aging resistance, fatigue resistance, and high film-forming properties, which seriously restrict The scope of application of non-polyvinyl alcohol paste

Method used

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  • Fatigue-resistant hydroxyethyl high-performance modified starch
  • Fatigue-resistant hydroxyethyl high-performance modified starch
  • Fatigue-resistant hydroxyethyl high-performance modified starch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Put 85kg of corn starch, 3kg of ethylene oxide, 5kg of sodium trimetaphosphate, 5kg of carboxymethyl chitosan, and 2kg of calcium persulfate into the reaction tank, and carry out the compound mixing reaction at 63°C for 1.0h before terminating Reaction, unloading, packaging, and storage. When the customer is using it, add 897kg of clear water to gelatinize and raise the temperature to 95°C or add clear water in a high-pressure tank to raise the temperature to 125°C and keep it warm for 30-50 minutes to carry out etherification, cross-linking, and oxidation compound reactions to obtain an emulsion for sizing fabrics.

[0017] Its biodegradation test grade 9. After the slurry adhesion test, the pure cotton adhesion is 100N, and the polyester-cotton adhesion is 138N. Carry out the same adhesion test to the slurry prepared in Example 1 in CN102733190A, CN102733191A, and CN102605618A respectively, wherein CN102733190A pure cotton adhesion is 91N, polyester cotton adhesion i...

Embodiment 2

[0020] Put 88kg of corn starch, 2kg of ethylene oxide, 5kg of sodium trimetaphosphate, 3kg of carboxymethyl chitosan, and 2kg of potassium hydrogen persulfate into the reaction tank respectively, and carry out the compound mixing reaction at 63°C for 1.0h Finally, the reaction is terminated, and the material is unloaded, packaged, and put into storage. When the customer is using it, add 880kg of clear water to gelatinize and heat up to 95°C or add clear water in a high-pressure tank to heat up to 125°C and keep it warm for 30-50 minutes to carry out etherification, cross-linking, and oxidation compound reactions to obtain a fabric sizing emulsion. After the slurry adhesion test, the pure cotton adhesion is 101N, and the polyester-cotton adhesion is 139N. The slurry has been tested for its buckling resistance, and its buckling resistance has reached 1261 times.

Embodiment 3

[0022] Put 92kg of corn starch, 1kg of ethylene oxide, 4kg of sodium trimetaphosphate, 2kg of carboxymethyl chitosan, and 1kg of ammonium persulfate into the reaction tank, and carry out the compound mixing reaction at 63°C for 1.0h Terminate the reaction, unload, pack and store. When the customer is using it, add 877kg of clear water to gelatinize and heat up to 95°C or add clean water to a high-pressure tank and heat up to 125°C for 30-50 minutes to carry out etherification, cross-linking, and oxidation compound reactions to obtain a fabric sizing emulsion. After the slurry adhesion test, the pure cotton adhesion is 106N, and the polyester-cotton adhesion is 143N. The slurry has been tested for its buckling resistance, and its buckling resistance has reached 1278 times.

[0023] All or part of the emulsion size obtained in the above examples is used to replace the polyvinyl alcohol, high-performance starch and ordinary starch in the existing size formula, and the fabric is ...

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Abstract

The invention discloses fatigue-resistant hydroxyethyl high-performance modified starch. The starch is prepared through the mixing and reacting of the following raw materials in percentage by mass: 82-95% of corn starch, 1-12% of epoxyethane, 1-13% of sodium trimetaphosphate, 1-5% of carboxymethyl chitosan and 0.1-11% of persulfate. The fatigue-resistant hydroxyethyl high-performance modified starch is environment-friendly and has good fatigue resistance, the starch liquid is stable in viscosity, has strong adhesive power to both cotton and dacron, has good ageing resistance, good fluidity and good film forming property and is easy to destarch, the starch liquid wastewater is easily treated and easily biodegraded and hardly causes pollution to the environment, and thus, the zero-pollution emission is achieved during production.

Description

technical field [0001] The invention belongs to the field of textile industry, and in particular relates to a size in the yarn sizing process of the textile industry. Background technique [0002] In the yarn sizing process in the textile industry, because polyvinyl alcohol (PVA) size has excellent film-forming properties, adhesion and better compatibility with other sizes, it is considered to solve the problem of polyester-cotton blending. The most ideal size for spinning and pure cotton fine size, high density and high difficulty varieties. However, since the price of polyvinyl alcohol (PVA) sizing is much higher than that of starch sizing, coupled with polyvinyl alcohol (PVA) sizing and some refractory sizing, it is difficult to treat the sizing wastewater after desizing, causing environmental pollution. pollute. The damage to the environment and pollution problems have attracted widespread attention, especially the fabrics sized with polyvinyl alcohol (PVA) sizing have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/11D06M15/03D06M11/72C08B31/12C08B31/18C08J3/24
Inventor 刘定国丁奎刚吴燕
Owner YIXING JUNDA SLURRY TECH