Breathable elastic composite non-woven fabric and manufacturing method thereof

A manufacturing method and technology of non-woven fabrics, which are applied in medical science, clothing, underwear, etc., can solve the problems of poor air permeability of elastic films, difficult heat emission, easy breeding of bacteria, etc., achieve soft touch, improve wearing comfort, reduce The effect of the risk of tearing

Pending Publication Date: 2021-10-29
XIAMEN YANJAN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The elastic film in the middle has poor air permeability. When worn in diapers with an elastic waist, it is difficult to discharge the heat inside the waist to the outside of the waist, making the wearer feel stuffy and airtight, and it is easy to breed bacteria and cause skin allergies

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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  • Breathable elastic composite non-woven fabric and manufacturing method thereof
  • Breathable elastic composite non-woven fabric and manufacturing method thereof
  • Breathable elastic composite non-woven fabric and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] like Figure 4 Together with figure 1 , figure 2 with image 3 As shown, the permeable elastic composite nonwoven fabric of the first embodiment of the present invention adopts the following method:

[0106] (1) The elastic film openings, a thermoplastic polychloride elastomer (TPU) is melt extruded extruded into the screw extruder A1; the elastic cast film enters the vacuum opening device, the vacuum open The hole device is composed of a vacuum pump (not marked in the figure), composed of a molding drum B1 coupled to the vacuum pump and a molded web cage C1 located outside the molded drum. When the elastic film enters the vacuum suction D1 of the vacuum opening device, due to internal and external pressure The difference is a plurality of funnel-shaped openings E1, forming a plurality of funnel-shaped openings E1, forming the elastic thin film 31 having the funnel shaped opening E1, wherein: the shape of the funnel-shaped opening E1 and the forming web cage C1 located outsid...

Embodiment 2

[0111] like Figure 5 , Image 6 , Figure 7 ,Cooperate image 3 As shown, the present invention discloses a gas permeable elastic composite nonwoven fabric 42, which consists of a surface layer nonwoven fabric 12, an intermediate layer elastic film 32, and a bottom-layer nonwoven fabric 22, a surface layer. Both the nonwoven fabric 12 and the underlying nonwoven fabric have a plurality of strip-type projections A2, B2, and the recessed regions C2, D2, and the surface layer nonwoven fabric 12 also has an opening structure F2, intermediate The recess-shaped region C2, D2 having a funnel-shaped opening E2, a surface layer nonwoven fabric 12, and a bottom layer-free nonwoven fabric 22, respectively, composite the top of the funnel shaped opening E2 of the intermediate layer elastic film 32. On the surface of the bottom, and the composite position is correspondingly, the surface layer nonwoven fabric 12 and the underlying nonwoven fabric 22 form a strip ventilation passage between the pro...

Embodiment 3

[0118] like Figure 8 , Figure 9 , Figure 10 ,Cooperate image 3 As shown, the present invention discloses a gas permeable elastic composite nonwoven fabric 43, which is formed of a surface layer nonwoven fabric 13, an intermediate layer elastic film 33 and a bottom-layer nonwoven fabric 23, a surface layer Both the nonwoven fabric 13 and the underlying nonwoven fabric have a plurality of striped strip projections A3, B3, and the recessed regions C3, D3, and the surface layer nonwoven fabric 13 and the underlying nonwoven fabric 23 have also have The opening structure F3, G3, the intermediate layer elastic film 33 has a funnel-shaped opening E3, the surface layer nonwoven fabric 13, and the recessed region C3, D3 of the underlying nonwoven fabric 23 composite in the intermediate layer elastic film 33, respectively. The top and bottom of the funnel shaped openings E3 are on the surface, and the composite position is corresponding, the surface layer nonwoven fabric 13 and the underlyi...

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 breathable elastic composite non-woven fabric which is composed of a surface layer non-woven fabric body, a middle layer elastic film and a bottom layer non-woven fabric body, the surface layer non-woven fabric body and the bottom layer non-woven fabric body are each provided with a plurality of strip-type protruding areas and a plurality of strip-type concave areas which are transversely arranged, funnel-shaped open holes are formed in the middle-layer elastic film, and strip-type breathable channels are formed between the protruding areas of the surface layer non-woven fabric body and the bottom layer non-woven fabric body, so that internal wet and hot air can permeate into the breathable channel space formed by the bottom layer non-woven fabric body and the elastic film through the bottom layer non-woven fabric body during wearing, the wet and hot air rapidly diffuses in the length direction and the height direction of the breathable channel space in the breathable channels, enters the breathable channel space formed by the elastic film and the surface layer non-woven fabric body through the holes of the elastic film, and then is discharged out of the elastic composite non-woven fabric, so that the effect of rapid heat conduction and moisture removal is achieved.

Description

Technical field [0001] The present invention relates to the field of nonwoven fabric, and more particularly to a gas permeable elastic composite nonwoven fabric applied to absorbent articles, personal care products, and a method for producing thereof. Background technique [0002] Elastic composite nonwoven fabric or elastic non-woven fabric has soft texture, environmentally friendly non-toxic and breathable, natural antibacterial characteristics, is widely used in elastic bandages, baby diapers adult blind pants waist waist waist waist. In particular, it is used in the elastic waist circumference of diaper, with moderate elasticity, no relaxation, not tight skin, and is soft and comfortable with the skin contact with the skin. [0003] The existing elastic composite nonwoven fabric is mainly composed of a surface layer or underlying nonwoven fabric, an intermediate layer is a resilient film. In the middle of the elastic film in the middle, it is difficult to discharge the hot ai...

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): A61F13/15A61F13/00A61F13/64
CPCA61F13/15577A61F13/00A61F13/64
Inventor 肖德全李世煌蔡吉祥
Owner XIAMEN YANJAN NEW MATERIAL CO LTD
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