Production method of high strength heat bonding non-woven fabric

A production method and technology of non-woven fabrics, applied in the direction of non-woven fabrics, textiles and papermaking, etc., can solve the problems of non-woven fabrics such as heavy weight, high cost, and low air permeability, and achieve simple and environmentally friendly production methods, good air permeability, The effect of improving uniformity

Inactive Publication Date: 2013-06-26
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in fact, the strength of the non-woven fabric is mainly improved by using the fiber web formed by basically continuous thermoplastic bicomponent filaments, and the non-woven fabric has a large grammage, low air permeability, and high cost. Suitable for use in the field of air filtration

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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  • Production method of high strength heat bonding non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 30% by weight of flame-retardant fibers, 50% by weight of skin-core composite fibers, and 20% by weight of ordinary polyester fibers are fed and opened side by side in a Sichuan-style pattern, left, middle, and right, and cross-laid to form fibers after two passes of carding. Then lay 4 layers of the above-mentioned fiber webs, and thermally bond the obtained 4 layers of fiber webs through a hot air box with a temperature of 200 ° C, and then heat the thermally bonded fiber webs at a temperature of 130 ° C , the pressure is 80kg / cm 2 Reinforced under a hot metal roller, and finally a high-viscosity thermally bonded non-woven fabric is obtained. The physical properties of the non-woven fabric are shown in Table 1.

Embodiment 2

[0024] 30% by weight of flame-retardant fibers, 50% by weight of skin-core composite fibers, and 20% by weight of ordinary polyester fibers are fed and opened side by side in a Sichuan-style pattern, left, middle, and right, and cross-laid to form fibers after two passes of carding. Then lay 4 layers of the above-mentioned fiber webs, and thermally bond the obtained 4 layers of fiber webs through a hot air box with a temperature of 160°C. , the pressure is 80kg / cm 2 Reinforced under a hot metal roller, and finally a high-viscosity thermally bonded non-woven fabric is obtained. The physical properties of the non-woven fabric are shown in Table 1.

Embodiment 3

[0026] 30% by weight of flame-retardant fibers, 50% by weight of skin-core composite fibers, and 20% by weight of ordinary polyester fibers are fed and opened side by side in a Sichuan-style pattern, left, middle, and right, and cross-laid to form fibers after two passes of carding. Then lay 4 layers of the above-mentioned fiber webs, and thermally bond the obtained 4 layers of fiber webs through a hot air box with a temperature of 200°C, and then place the thermally bonded fiber web layers at a temperature of 160°C , the pressure is 80kg / cm 2 Reinforced under a hot metal roller, and finally a high-viscosity thermally bonded non-woven fabric is obtained. The physical properties of the non-woven fabric are shown in Table 1.

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 production method of high strength heat bonding non-woven fabric. The high strength heat bonding non-woven fabric comprises, by weight, 30-50% of skin-core complex fiber, 10-30% of fire resistant fiber and 20-60% of ordinary polyester fiber. Cotton dropping, opening, carding and net cross laying are conducted in a mode shaped like a Chinese character 'chuan'. Heat bonding and hot rolling strengthening are conducted on a formed fiber net through a hot air box and then the non-woven fabric is obtained. The manufactured non-woven fabric is high in strength and air permeability, long in service life and capable of being widely used in the field of air filtration.

Description

technical field [0001] The invention relates to a production method of high-strength heat-bonded nonwoven fabric. Background technique [0002] At present, the web forming methods of non-woven fabrics on the market mainly include dry method, wet method, air-laid method, spunbond method, melt-blown method, etc. Among them, dry method is the main method, accounting for the total production of non-woven fabrics. More than 50% of the net is fixed by the dry method, such as needle punching, spunlace, chemical bonding, thermal bonding, etc. The production of low-weight non-woven fabrics generally adopts chemical bonding and thermal bonding. If chemical bonding is used, the problems of three wastes and high energy consumption during reinforcement have not been completely solved, and the remaining chemicals in the product have serious consequences. Adverse side effects, such as irritation to the skin; although the non-woven fabric formed by the dry thermal bonding method has the ch...

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 Applications(China)
IPC IPC(8): D04H1/541D04H1/559D04H1/558
Inventor 赵庆成蔡文杰纪舜卿
Owner TORAY FIBER RES INST(CHINA) CO LTD
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