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Yarn foam sizing process and device

A foam sizing and yarn technology, applied in the field of textile sizing, can solve the problems of sizing consumption, desizing wastewater pollution, and high sizing permeability, and achieve the effects of improving wear resistance and low operating costs

Active Publication Date: 2014-05-14
LUTAI TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional sizing technology has disadvantages such as high permeability of slurry, consumption of slurry, large energy consumption, high cost, etc. The size is not easy to biodegrade, and the pollution of desizing wastewater is serious

Method used

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  • Yarn foam sizing process and device
  • Yarn foam sizing process and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: The sizing of A04044-1202651-1L (yarn count: pure cotton 80 pounds, total warp number: 8060) yarn, the specific operation steps are:

[0017] Preparation of slurry: mix polyvinyl alcohol, modified starch, acrylic acid and water at a mass ratio of 2:6:2:200 to make a mixture, and then add a foaming agent, the volume ratio of the foaming agent to the above mixture The ratio is 1:100, mix evenly to make a slurry;

[0018] Slurry treatment: heat the above slurry to 90°C first, then cool it down to 40°C, and then add it to the foamer.

[0019] Yarn sizing: the pressure between the two pressure rollers 4 in the size tank 3 is 12000N, and the foam generated by the foamer 1 sprays down from the nozzle 5 of the foam applicator 2 onto the two oppositely rotating pressure rollers 4 In the middle, the yarn is first soaked in the foam slurry in the size tank 3, and then passes through the middle of the two pressure rollers 4 from the bottom, so that when the yarn passes ...

Embodiment 2

[0020] Example 2: The sizing of Q04041-1200625-3L (yarn count: pure cotton 40 pounds, total warp number: 8032) yarn, the specific operation steps are:

[0021] Preparation of slurry: mix polyvinyl alcohol, modified starch, acrylic acid and water at a mass ratio of 5:16:4:300 to make a mixture, and then add a foaming agent, the volume ratio of the foaming agent to the above mixture 2:100, mix evenly to make a slurry;

[0022] Slurry treatment: heat the above slurry to 110°C first, then lower the temperature to 50°C, and then add it to the foamer.

[0023] Yarn sizing: the pressure between the two pressure rollers 4 in the size tank 3 is 14000N, and the foam generated by the foamer 1 sprays down from the nozzle 5 of the foam applicator 2 onto the two oppositely rotating pressure rollers 4 In the middle, the yarn passes through the middle of the two squeeze rollers 4 from the bottom, so that when the yarn passes through the squeeze rollers 4, it is moderately squeezed by the squ...

Embodiment 3

[0024] Example 3: The sizing of A04041-1214149-1L (yarn count: pure cotton 30 pounds, total warp number: 8020) yarn, the specific operation steps are:

[0025] Preparation of slurry: mix polyvinyl alcohol, modified starch, acrylic acid and water at a mass ratio of 5:10:5:200 to make a mixture, and then add a foaming agent, the volume ratio of the foaming agent to the above mixture 3:100, mix evenly to make a slurry;

[0026] Slurry treatment: heat the above slurry to 120°C first, then cool it down to 60°C, and then add it to the foamer.

[0027] Yarn sizing: the pressure between the two pressure rollers 4 in the size tank 3 is 18000N, and the foam generated by the foamer 1 sprays down from the nozzle 5 of the foam applicator 2 onto the two oppositely rotating pressure rollers 4 In the middle, the yarn passes through the middle of the two squeeze rollers 4 from the bottom, so that when the yarn passes through the squeeze rollers 4, it is moderately squeezed by the squeeze roll...

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Abstract

The invention provides a yarn foam sizing process which is characterized in that: a sizing agent comprises polyvinyl alcohol, modified starch, acrylic acid, water and a foaming agent, wherein the ratio of the total mass of the polyvinyl alcohol, the modified starch and the acrylic acid to the mass of the water is 1:(3-20), and the ratio of the volume of the foaming agent to the total volume of the other four components is (1-3):100. The sizing agent is heated to 90-120 DEG C and then cooled to 40-60 DEG C and filled into a foam maker, then the foam is sprayed from top to bottom in a position between two sizing-agent pressing rollers which rotate oppositely, and the yarn penetrates through the position between the two sizing-agent pressing rollers from bottom, wherein the pressure between the two sizing-agent pressing rollers is 12,000-20,000N. According to the process, the yarn penetrates through the position between the two sizing-agent pressing rollers from bottom, then the form is attached to the warp yarn before being properly squeezed by the sizing-agent pressing rollers, and after the foam bursts, a proper amount of sizing agent is attached to the surface of the warp yarn to form a sizing-agent film. The sizing agent is saved, the strength of the yarn is increased, the sizing agent can be well attached to the hairness on the surface of the yarn, and the wear resistance of the yarn is improved.

Description

technical field [0001] The invention provides a yarn foam sizing process and device, belonging to the technical field of textile sizing. Background technique [0002] Sizing is a very important process in the weaving industry. It belongs to the pre-weaving process. The quality of sizing affects the smooth progress of weaving and the quality of finished products. The sizing method and sizing process have a long history. At present, the traditional sizing method is mainly the "soaking method" sizing. The more commonly used sizing processes mainly include high-pressure sizing and pre-wet sizing. "Two high and one low" high-pressure sizing process, that is, the use of high pressure force, high concentration, and low viscosity, so that the permeability of the slurry is high, the filling density of the yarn is high, and the adhesion is strong, so that the cotton yarn Obtain a high reinforcement effect, a flexible and uniform serous film, and a large amount of hairiness attached....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/333D06M15/11D06M13/203D06B1/14
Inventor 张建祥任纪忠赵海涛张海东
Owner LUTAI TEXTILE
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