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Tough needle-punched non-woven fabric

A needle-punched non-woven fabric, tough technology, applied in textiles and papermaking, conjugated synthetic polymer artificial filament, fiber chemical characteristics, etc., can solve PET-wrapped PA66 pellets, difficult blending of modified resin, PET modification Difficulty and other problems, to achieve the effect of large effective range, prevent clogging of the drawing nozzle, and good strength

Active Publication Date: 2020-12-11
恒兆(湖北)新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing modifications to non-woven fabrics are mainly achieved by surface coating, and there are few ways to modify the extrusion formula. This is because PET resin, which is commonly used in non-woven fabrics, has a strong polarity and is different from the usual modification. Blending of non-reactive resins is difficult, and PET resin is sensitive to water, which also makes the modification of PET difficult. At the beginning of this century, some scholars proposed some technical solutions for the blending of nylon and PET, but these technical solutions are mainly Applied to plastic alloys, in the non-woven fabric melt-blown process, when the material width is only in the μm range, PET cannot wrap PA66 pellets well, and the strength is low

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation process for tough needle-punched non-woven fabrics, comprising the following steps:

[0041] S1. Drying: drying all raw materials until the final moisture content is less than 35ppm;

[0042] S2. Melting: Put 110 parts of PET chips, 26 parts of polyhexamethylene adipamide and 7.2 parts of gum rosin into the melting equipment to melt, add 2.5 parts of protein additives, 8.5 parts of amino silicone oil, and 1.3 parts of tetratitanate Butyl ester and maleic anhydride equivalent to 4.5 parts of acetic acid are stirred quickly evenly, and then filtered through a melt filter, and the filtration accuracy of the melt filter is 40 μm;

[0043] S3. Wire drawing: the melt obtained in the melting of S2 is drawn through the spinning box, and the filament bundle is cooled by side blowing while drawing, and the air humidity of the side blowing is controlled to be less than 50%;

[0044] S4. Spinning wire: break up the tow obtained in S3. drawing, and lay it on the trans...

Embodiment 2

[0051] A preparation process for tough needle-punched non-woven fabrics, comprising the following steps:

[0052] S1. Drying: drying all raw materials until the final moisture content is less than 35ppm;

[0053]S2. Melting: Put 100 parts of PET slices, 28 parts of polyhexamethylene adipamide and 5 parts of gum rosin into the melting equipment to melt, add 3 parts of protein additives, 6 parts of amino silicone oil, and 2.5 parts of tetratitanate Butyl ester and maleic anhydride equivalent to 3 parts of acetic acid are then filtered through a melt filter with a filtration accuracy of 40 μm;

[0054] S3. Wire drawing: the melt obtained in the melting of S2 is drawn through the spinning box, and the filament bundle is cooled by side blowing while drawing, and the air humidity of the side blowing is controlled to be less than 50%;

[0055] S4. Spinning wire: break up the tow obtained in S3. drawing, and lay it on the transmission mesh curtain;

[0056] S5. Acupuncture: the mesh...

Embodiment 3

[0062] A preparation process for tough needle-punched non-woven fabrics, comprising the following steps:

[0063] S1. Drying: drying all raw materials until the final moisture content is less than 35ppm;

[0064] S2. Melting: Send 120 parts of PET slices, 20 parts of polyhexamethylene adipamide and 8 parts of gum rosin into the melting equipment to melt, add 1.5 parts of protein additives, 18 parts of amino silicone oil, and 2 parts of tetratitanate Butyl ester and maleic anhydride equivalent to 5 parts of acetic acid are then filtered through a melt filter, and the filtration accuracy of the melt filter is 40 μm;

[0065] S3. Wire drawing: the melt obtained in the melting of S2 is drawn through the spinning box, and the filament bundle is cooled by side blowing while drawing, and the air humidity of the side blowing is controlled to be less than 50%;

[0066] S4. Spinning wire: break up the tow obtained in S3. drawing, and lay it on the transmission mesh curtain;

[0067] S...

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 belongs to the technical field of non-woven fabrics, and particularly relates to a tough needle-punched non-woven fabric. The tough needle-punched non-woven fabric comprises PET slices,polyhexamethylene adipamide, gum rosin, protein additives, amino silicon oil, a polymerizing agent and a polycarboxyl carboxylic acid compound. Thetough needle-punched non-woven fabric is prepared through the steps of S1, drying, S2, melting, S3, yarn drawing, S4, yarn swaying and S5, needle punching. According to the invention, the protein additives are added into a PET / PA66 blended system, so that the compatibility is improved, and blended fibers are better in toughness and strength; and meanwhile, the gum rosin and the amino silicon oil are added, the gum rosin and the amino silicon oil canbe used as bridges for connecting short peptides, more double bonds exist in the gum rosin and can react with sulfydryl, the difficulty of mutual connection between the short peptides is greatly reduced, the amino silicon oil is relatively long in molecular chain and large in effect taking range, and the spraying speed can be increased under the condition of keeping a filament body state, so thatthe yield is increased.

Description

technical field [0001] The invention belongs to the technical field of non-woven fabrics, in particular to a tough needle-punched non-woven fabric. Background technique [0002] Non-woven fabrics, also known as non-woven fabrics, are composed of oriented or random fibers. It is called cloth because of its appearance and certain properties. Non-woven fabrics have the characteristics of moisture-proof, breathable, flexible, light weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low in price, and recyclable. For example, plastic granules are mostly used as raw materials, which are produced by continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing. [0003] One of the main directions of use of non-woven fabrics is as the base layer of waterproof membranes, and the service life of waterproof membranes is very long, and it is inevitable to encounter various accidents. Spinning requires better toughness...

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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IPC IPC(8): D01F8/14D01F8/12D01F1/10
CPCD01F8/14D01F8/12D01F1/10
Inventor 李勇
Owner 恒兆(湖北)新材料科技股份有限公司
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