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Textile slurry composition mixed with starches of different denaturation degrees and preparation thereof

A technology of textile size and modified starch, which is applied in the field of textile size, can solve problems such as the inability to solve the contradiction between the viscosity of starch size and the strength of the size film, reduce the mechanical strength of starch, reduce the cost of size, increase the breaking strength and breaking work , the effect of reducing the apparent viscosity

Inactive Publication Date: 2009-07-08
SICHUAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the direct side effect of the reduced molecular weight of starch after denaturation processing is to reduce the mechanical strength of starch.
Almost all modified starches cannot solve the contradiction between starch slurry viscosity and size film strength

Method used

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  • Textile slurry composition mixed with starches of different denaturation degrees and preparation thereof
  • Textile slurry composition mixed with starches of different denaturation degrees and preparation thereof
  • Textile slurry composition mixed with starches of different denaturation degrees and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Take 8 parts of cassava acid-thinned starch 1# with a viscosity of 6.1mPa·s in Table 1, and take another 2 parts of cassava acid-thinned starch 5# with a viscosity of 33.2mPa·s, add them to the mixer, and perform physical Mix to obtain a slurry composition, and its viscosity and mechanical properties of the slurry film are measured according to the same test method as the raw materials, as shown in Table 2 for details.

Embodiment 2

[0043] Take 7 parts of cassava acid-thinned starch 1# with a viscosity of 6.1mPa·s in Table 1, and another 3 parts of local potato acid-thinned starch 5# with a viscosity of 33.2mPa·s, add them to the mixer, and carry out in a dry powder state. The slurry composition was obtained by physical mixing, and its viscosity and mechanical properties of the slurry film were measured according to the same test method as the raw materials, as shown in Table 2 for details.

Embodiment 3

[0045] Take 6 parts of cassava acid-thinned starch 1# with a viscosity of 6.1mPa·s in Table 1, and another 4 parts of cassava acid-thinned starch 5# with a viscosity of 33.2mPa·s, add them to the mixer, and perform physical Mix to obtain a slurry composition, and its viscosity and mechanical properties of the slurry film are measured according to the same test method as the raw materials, as shown in Table 2 for details.

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Abstract

The invention discloses a weaving sizing agent composition mixed by the starches with different modification degrees and preparation method thereof, which is characterized in: adding 2-8 parts of native starch or modified starch with viscosity of 13.1mPas-480mPas, 2-8 parts of modified starch with viscosity of 3mPas-11.4mPas into a mixing machine, mixing them physically in dry powder state; adding 0-0.5 part of sizing grease, 0-0.5 part of hygroscopic agent, 0-0.1 part of antistatic agent and 0-2 parts of other sizing agents into the mixing machine, mixing uniformly, and obtaining the weaving sizing agent composition. The two starch components in the composition have the teamwork effect for increasing and reducing viscosity, obviously reduces apparent viscosity of the sizing agent, increasing the agent film fracture intensity and fracture work, and reduces sizing agent cost.

Description

technical field [0001] The invention relates to a textile size composition mixed with starches of different denatured degrees and a preparation method thereof, belonging to the field of textile size. Background technique [0002] Starch is one of the most common and widely used textile size. It is an inexpensive, renewable, biodegradable natural polymer. Starch granules contain two components, amylose and amylopectin, which are polymers of α-D-glucose. The average molecular weight of amylose is 10 6 Above, the average molecular weight of amylopectin can reach 10 7 —10 9 . Since each glucose residue has three hydroxyl groups at the 2-, 3- and 6-positions, starch has certain reactivity and can also form hydrogen bonds within or between molecules. Starch size has good film-forming properties, certain size film strength and wear resistance, good adhesion to cellulose fibers, and even chemical adhesion to weakly polar synthetic fibers such as nylon and polyester. This prop...

Claims

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Application Information

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IPC IPC(8): D06M15/11D06M101/04D06M101/32
Inventor 朱谱新吕许超刘雁翦育林钮安建武春香钟创林钟育波
Owner SICHUAN UNIV
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