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Water-soluble polyester sizing agent and preparation thereof

A water-soluble polyester and sizing technology, applied in textiles, papermaking, and fiber treatment, can solve problems such as high production and transportation costs, high yarn breakage rate, and insufficient sizing rate, and achieve convenient transportation, good performance, The effect of low head break rate

Inactive Publication Date: 2013-02-06
NANTONG HENGMIAO TEXTILE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the insufficient sizing rate of the existing textile size, high yarn breakage rate during weaving and high production and transportation costs, the invention provides a water-soluble polyester textile size

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Water-soluble polyester sizing agent and preparation thereof
  • Water-soluble polyester sizing agent and preparation thereof
  • Water-soluble polyester sizing agent and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 30 parts (number of parts of substance) sodium dimethyl sulfonate isophthalate monomer, 15 parts of ethylene glycol, 10 parts of propylene glycol, 5 parts of polyethylene glycol 200 are added in the four-necked flask of 2000ml, stir , heated to 80° C., decompressed and evacuated to remove the produced methanol and excess water, and the reaction was maintained for 8 hours. After the reaction is over, the product is poured out, put into a twin-screw extruder, extruded, and granulated to obtain a finished product.

[0030] Add 100g of the product into 500g of water, heat to dissolve, and then immerse the yarn in the diluted solution for 0.1 to 1 minute. Then it can be spun and weaved by drying at 60-120°C.

Embodiment 2

[0032]60 parts (number of parts of matter) sodium diethyl sulfonate isophthalate monomer, 30 parts of ethylene glycol, 10 parts of polyethylene glycol 400 are added in the four-necked flask of 5000ml, stirred, heated to 80 °C, depressurize and evacuate to remove the ethanol and excess water produced, and keep the reaction for 10 hours. After the reaction is over, the product is poured out, put into a twin-screw extruder, extruded, and granulated to obtain a finished product.

[0033] Add 100g of the product to 100g of water, heat to dissolve, and then dip the yarn in the diluted solution for 0.2 minutes. Then it can be spun and weaved by drying at 80°C.

Embodiment 3

[0035] Add 100 parts (number of parts of substances) sodium dipropylisophthalate sulfonate monomer, 80 parts of propanol, and 20 parts of polyethylene glycol 1000 into a 5000ml four-neck flask, stir, and heat to 90°C , decompressed and vacuumized to remove the produced propanol and excess moisture, and the reaction was maintained for 10 hours. After the reaction is over, the product is poured out, put into a twin-screw extruder, extruded, and granulated to obtain a finished product.

[0036] Add 200g of the product to 3000g of water, heat to dissolve, and then dip the yarn in the diluted solution for 0.1 minute. Then it can be spun and weaved by drying at 70°C.

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Abstract

The invention relates to a water-soluble polyester sizing agent and preparation of the water-soluble polyester sizing agent. The water-soluble polyester sizing agent belongs to the field of a textile finishing agent. The polyester sizing agent is prepared from isophthalic acid dialkyl ester sodium sulfonate, ethanediol, propanediol and polyethylene glycol by processes of reacting to certain molecular weight and viscosity under agitating, heating and vacuumizing conditions, and extruding by double screws after being discharged and then pelleting. The water-soluble polyester sizing agent has excellent hydrophilicity and water solubility, does not need an emulsifier to assist emulsification, and can be directly prepared into a solution to carry out sizing finishing on a yarn. The sized yarn is good in strength and good in film forming property and cohesive property, does not become sticky, does not generate hairness, does not contain components harmful to a human body and the environment, and has no a specific odor. The water-soluble polyester sizing agent is simple in operation, and lower in cost and better in performance in comparison with same types of products.

Description

technical field [0001] The invention belongs to the field of fabric size and relates to a hydrophilic textile size and a preparation method thereof. technical background [0002] During the weaving process, the warp yarns are subjected to repeated frictions of warp stoppers, heddles, and reeds; they are also subjected to repeated stretching, buckling, and abrasion due to the movement of various mechanisms. Unsized warp yarns have prominent hairiness on the surface and insufficient cohesion between fibers. Under the action of the mechanical force of the loom, the yarn body will fluff, making the warp yarns bond to each other, resulting in unclear openings, warp yarn breakage, and weaving defects. , and even make weaving impossible. In order to reduce the breakage rate of warp yarns and improve the weavability and product quality of warp yarns, it is necessary to sizing warp yarns to give warp yarns higher wear resistance, fit hairiness, and maintain the original elasticity o...

Claims

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Application Information

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IPC IPC(8): D06M13/256D06M13/148D06M15/53
Inventor 孙戒郑春玲王国伟常同胜周晓琛
Owner NANTONG HENGMIAO TEXTILE TECH