Method for Improving Hydrophilicity of Polyester Forming Net and Polyester Forming Net

A hydrophilic polymer, forming wire technology, applied in the direction of heating/cooling fabrics, textiles and paper making, paper making machines, etc., can solve problems such as difficulty in cleaning, and achieve the effects of low cost, high efficiency and simple process

Active Publication Date: 2014-10-22
JIANGSU JINNI ENGINEERED FABRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface of polyester monofilament is hydrophobic, so hydrophobic substances such as resins are easy to combine with polyester mesh and precipitate, making it difficult to clean

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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  • Method for Improving Hydrophilicity of Polyester Forming Net and Polyester Forming Net
  • Method for Improving Hydrophilicity of Polyester Forming Net and Polyester Forming Net
  • Method for Improving Hydrophilicity of Polyester Forming Net and Polyester Forming Net

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 1 , figure 2 , image 3 and Figure 4, the existing polyester forming net used in this method of improving the surface hydrophilicity of the polyester forming net, such as the warp polyester raw yarn after warping, passes through the loom and weft polyester monofilament, and at the same time the bottom weft is matched with a certain proportion Nylon monofilament is woven into a three-layer net, that is, the existing polyester three-layer forming net 4, and its weaving structure is 16 sheds, 20 sheds or 24 sheds, and 16 sheds are used in the present embodiment; first, a section of heat setting: about to The above prepared polyester three-layer forming 4 net slowly passes through the hot air circulation heating machine 1 along the machine direction, and is heated to 190°C; at the same time, it is sprayed with a spray coating set in the hot air circulation heating machine 1 and located below the polyester forming net 4 Machine 2 atomizes a cationic polyacryl...

Embodiment 2

[0035] This embodiment is basically the same as Embodiment 1, and the similarities will not be described in detail. The difference is: in this example, in a heat setting process, the polyester three-layer forming net is heated to 180°C; at the same time, the concentration of the cationic polyacrylamide solution is 10%, the temperature is 160°C, and the molecular weight is 500,000; During the second heat setting process, the polyester three-layer forming wire was heated to 140°C. The microstructure of its surface charge before and after coating modification can be found in image 3 and Figure 4 .

Embodiment 3

[0037] This embodiment is basically the same as Embodiment 1, and the similarities will not be described in detail. The difference is: in this example, in a heat setting process, the polyester three-layer forming net is heated to 200°C; at the same time, the concentration of the cationic polyacrylamide solution is 15%, the temperature is 160°C, and the molecular weight is 1.5 million; During the second heat setting process, the polyester three-layer forming wire was heated to 140°C. The microstructure of its surface charge before and after coating modification can be found in image 3 and Figure 4 .

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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Abstract

The invention discloses a method for improving surface hydrophilic property of a polyester forming net, which includes: firstly, heating the polyester forming net to the temperature of 160 DEG C to 200 DEG C; simultaneously, atomizing hydrophilic property chemical solution with concentration of 10-20% (weight), the temperature of 120-180 DEG C and the molecular weight of 50 to 3 million to a gasified state, spraying and coating the atomized solution onto the surface of monofilaments of the polyester forming net, and sucking and discharging redundant steam; secondly, cutting the polyester forming net and connecting in an inserted manner; and finally, heating the polyester forming net to the temperature of 120 DEG C to 160 DEG C. The invention further discloses the polyester forming net utilizing the method. By the method, the surface hydrophilic property of the polyester forming net is improved, adsorption to hydrophobic materials in paper pulp, such as resin and the like is reduced, and cleanability and filtering performance of the polyester forming net are improved. In addition, pressure of water flushing the polyester forming net is decreased, damage to the polyester forming net by the high-pressure water is alleviated, and the service life of the polyester forming net is prolonged.

Description

technical field [0001] The invention relates to the field of surface modification methods for paper-making forming wires, in particular to a method for improving the surface hydrophilicity of paper-making polyester forming wires, and a polyester forming wire. Background technique [0002] During the papermaking process, about 95% of the dehydration in the pulp is released through the paper forming wire; during the operation of the paper forming wire, it is in contact with dehydration components such as breast rolls, forming plates, low vacuum suction boxes, high vacuum suction boxes, and couch rolls. damage. Therefore, the forming wire for papermaking is an indispensable and valuable dewatering equipment for papermaking enterprises. A good papermaking forming wire must meet the requirements of paper quality, long service life and good running stability. The fiber support index, air permeability, water drainage, vertical and horizontal stability, stiffness and service life ...

Claims

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F1/10D04C1/06D06C7/00D06C7/02
Inventor 陆平朱文远张辉周积学叶平
Owner JIANGSU JINNI ENGINEERED FABRIC CO LTD
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