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Pure cotton PVA low-concentration and room-temperature sizing method

A low-concentration, normal-temperature technology, applied in the direction of liquid/gas/steam yarn/filament processing, plant fiber, etc., can solve the problems of high sizing rate, high process energy consumption, difficult desizing in finishing process, etc., and achieve energy saving Effect

Inactive Publication Date: 2015-02-18
LUTAI TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process consumes a lot of energy, and the sizing rate is relatively high (the sizing rate of the strand type is 8%, and the general rate of the single yarn type is about 12%). It is difficult to desizing in the finishing process, which affects the final finishing effect of the fabric.

Method used

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  • Pure cotton PVA low-concentration and room-temperature sizing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1: Select 1500 meters of 80-inch strands for sizing, and the PVA size concentration is 1.5%.

[0010] 1. Slurry mixing process: add 1000 liters of water into the slurry mixing tank, and raise the temperature to 50°C, turn on the agitator, then add 10 kg of PVA, stop heating after the temperature rises to 90°C, continue to stir for 15 minutes, then stop stirring to make PVA 1% slurry.

[0011] 2. Sizing process: Use the sizing machine to put the prepared slurry in the sizing barrel into the size tank, and at the same time turn on the circulation pump, turn off the heating device in the size tank, and start the sizing machine normally for sizing.

Embodiment 2

[0012] Embodiment 2: Select 5600 meters of 100-inch strands for sizing, and the PVA size concentration is 2%.

[0013] 1. Slurry mixing process: add 1000 liters of water into the slurry mixing tank, and raise the temperature to 50°C, turn on the agitator, then add 20 kg of PVA, stop heating after the temperature rises to 90°C, continue to stir for 15 minutes, then stop stirring to make PVA A slurry with a consistency of 2%.

[0014] 2. Sizing process: Pour the PVA slurry with a concentration of 2% in the sizing tank into the size tank, turn on the circulation pump at the same time, turn off the heating device in the size tank, and start the sizing machine normally.

Embodiment 3

[0015] Embodiment 3: Select 1000 meters of 40-inch single yarn for sizing, and the PVA size concentration is 4%.

[0016] 1. Slurry mixing process: add 1000 liters of water into the slurry mixing tank, and raise the temperature to 50°C, turn on the agitator, then add 40 kg of PVA, stop heating after the temperature rises to 90°C, continue to stir for 15 minutes, then stop stirring to make PVA 4% slurry.

[0017] 2. Sizing process: Put the PVA slurry with a concentration of 4% adjusted in the sizing tank into the size tank, turn on the circulation pump at the same time, turn off the heating device in the size tank, and start the sizing machine normally.

[0018] After testing, the yarn processed by the present invention has the following data compared with traditional sizing:

[0019]

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Abstract

The invention provides a pure cotton PVA low-concentration and room-temperature sizing method. The pure cotton PVA low-concentration and room-temperature sizing method is characterized by comprising the following steps: (1) carrying out size mixing: adding water into a size mixing bucket and heating to 50 DEG C; starting a stirrer and adding solid PVA in the mass ratio of solid PVA to water of (1-4) to 100; heating to 90 DEG C and stirring and dissolving into size; and (2) sizing: sizing by adopting a sizing machine, wherein the size in a size tank does not need to be heated. According to the pure cotton PVA low-concentration and room-temperature sizing method, the defects in a traditional sizing process that the sizing rate is great, size skins are easy to form by the size, the desizing is difficult in a post-finishing procedure and the like are overcome, a finishing auxiliary agent is easy to add in the post-finishing procedure, and the energy consumption can be reduced.

Description

technical field [0001] The invention provides a low-concentration normal-temperature sizing method for pure cotton PVA, in particular to a process for sizing yarns with low-concentration PVA at normal temperature. Background technique [0002] The purpose of sizing is to reduce the friction coefficient of the warp yarn, increase the breaking strength of the warp yarn, and try not to reduce the elasticity and elongation at break of the warp yarn too much, thereby reducing the warp yarn breakage during the weaving process and improving the weaving of the warp yarn performance. [0003] The traditional yarn sizing process generally uses PVA, starch, acrylic acid and other sizing materials to mix and sizing. The traditional sizing method is to use a mixing tank with an agitator. Amount of water, turn on the agitator and slowly add PVA, starch, acrylic acid and other sizing materials in the prescribed order, heat up to 112°C, cook the pulp for 20 minutes, turn on the agitator at...

Claims

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Application Information

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IPC IPC(8): D06M15/333D06B3/04D06M101/06
Inventor 王广武王万超孔祥燕王新花毛伟孙琳琳
Owner LUTAI TEXTILE
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