Normal-temperature size mixing and normal-temperature warp sizing method

A normal temperature, pulping technology, applied in textiles, papermaking, fiber processing, etc., can solve the problems of unstable viscosity, large viscosity fluctuation, high temperature slurry skinning, etc., and achieve the effect of simple preparation method, good fluidity and uniform slurry

Inactive Publication Date: 2010-11-24
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods have achieved the sizing effect, there are problems such as skinning of the high-temperature slurry, difficulty in observing the liquid level of the slurry, inaccurate liquid level determination, molecular degradation of the slurry, unstable viscosity, and inability to withstand high-temperature fiber deformation.
[0003] Another problem related to this known high-temperature cooking and sizing method is the current energy problem. The slurry water dispersion system is raised from room temperature to high temperature, and it takes several hours to cook, keep warm, and sizing, which consumes more energy. Does not meet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

[0025] Prepare materials according to the following sizing ratios:

[0026] Starch 7%

[0027] Polyacrylate liquid slurry 3%

[0028] Emulsifying wax 0.2%

[0029] Penetrant 0.2%

[0030] water remainder

[0031] Add 800 kg of room temperature water into the mixing bucket, turn on the mixer, add 70 kg of pregelatinized starch with a viscosity of 6-8 mPa.s, stir until uniform, observe that there are no visible particles, and add 25% polyacrylic acid by mass. 120 kg of ester liquid slurry, continue to stir, add 8 kg of emulsifying wax with a solid content of 25% by mass, 2 kg of fatty alcohol polyoxyethylene ether penetrant, continue to stir for 30 minutes, and input the pulp into the sizing machine through the sizing pipeline In the tank, the warp yarns are sizing at a sizing rate of 60 m / min. The obtained slurry had a solids content of 10.4%.

Example Embodiment

[0032] Example 2

[0033] Repeat Example 1 by the same steps as described, but the sizing material and amount have the following differences:

[0034] Starch 9%

[0035] Water-soluble polyester liquid 3%

[0036] Emulsifying wax 0.4%

[0037] Penetrant 0.1%

[0038] water remainder.

[0039] The obtained slurry had a solid content of 12.5%.

Example Embodiment

[0040] Example 3

[0041] Prepare materials according to the following sizing ratios:

[0042] Starch 8%

[0043] Sodium hydroxide 0.6%

[0044] Acrylic copolymer liquid slurry 3%

[0045] Emulsifying wax 0.2%

[0046] Penetrant 0.2%

[0047] water remainder

[0048] Add 400 kg of room temperature water into the mixing bucket, turn on the mixer, add 6 kg of sodium hydroxide, after dissolving, add 80 kg of insoluble modified starch at room temperature with a viscosity of 6 to 8 mPa.s, stir until it is uniform, and it is observed that it is relatively transparent. Slurry, then add 382 kg of water, stir evenly, add 120 kg of acrylic copolymer liquid slurry with a solid content of 25% by mass and an acid group equivalent of 0.6 mol / 100g, continue to stir, and add a solid content of 25% by mass. 8 kg of 25% emulsified wax, 2 kg of fatty alcohol polyoxyethylene ether penetrating agent, continue stirring for 30 minutes, and then enter the sizing machine into the sizing tank of ...

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Abstract

The invention relates to a normal-temperature size mixing and normal-temperature warp sizing method, which comprises the following steps of: mixing starch size at the normal temperature of between 20 and 40 DEG C under a neutral or alkali condition to form size, then adding neutral or low-pH polymer size, emulsified liquid wax and penetrating agent component into the size, stirring and mixing themixture uniformly in a size mixing barrel at the normal temperature, and then sizing warps on a sizing machine at the normal temperature. The method is simple, low in cost, environment-friendly and suitable for industrialized production; and when the method is suitable for mixing the size and sizing the warps at the normal temperature (20 to 40 DEG C), the size is uniform, has good liquidity, does not gel or deposit, and has the same sizing effect as high-temperature boiling and high-temperature sizing.

Description

technical field [0001] The invention belongs to the field of sizing and sizing for warp yarn sizing, and in particular relates to a method for normal temperature sizing and normal temperature sizing of warp yarns. Background technique [0002] Textile warp yarns need sizing to bond fibers before weaving, so that warp yarns can withstand the repeated friction of warp wires, healds, reeds, adjacent yarns, etc. during weaving. The sizing material is usually starch, polyvinyl alcohol, polyacrylic acid and other polymer substances such as carboxymethyl cellulose, gelatin, polyoxyethylene, etc. These materials are assembled during sizing, fired at high temperature with water to form a slurry, and then Warp yarns are sized at high temperature. So far, the warp yarn sizing process of the domestic cotton textile system basically continues to use this high-temperature atmospheric pressure cooking, or high-temperature and high-pressure cooking pulp, and high temperature (85 ° C ~ 95 °...

Claims

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Application Information

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IPC IPC(8): D06M15/11D06M13/02D06M15/263D06M15/285D06M15/507D06M15/53
Inventor 郭腊梅戴传彪李超胡娟
Owner DONGHUA UNIV
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