CN210826608U

CN210826608U - Elastic non-woven fabric

Info

Publication number: CN210826608U
Application number: CN201921217569.8U
Authority: CN
Inventors: 邓宏昌; 王文祥; 卢梓健; 闵文朝; 陈土标; 刘路长
Original assignee: Guangdong Xiehong Non Woven Technology Co ltd
Current assignee: Guangdong Xiehong Non Woven Technology Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-06-23
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses an elastic non-woven fabric, which comprises a high elastic layer and a staggered net which are fixed with each other, the staggered net is arranged in the high elastic layer, on one side surface or on both sides surfaces, the staggered net is composed of two groups of fiber bundle groups, each group of fiber bundle group comprises a plurality of fiber bundles with certain elasticity and parallel with each other, one group of fiber bundle group is overlapped on the other group of fiber bundle group with an included angle of 5-20 degrees, the two groups of fiber bundle groups are fixed with each other at the intersection point between the fiber bundles, the staggered net is fixed on the high elastic layer to be compounded into the non-woven fabric, the included angle of the two groups of fiber bundle groups forms a smaller acute angle, when the non-woven fabric is stretched according to the angular bisector direction of the supplementary angle of the fiber bundles, the staggered net has smaller influence on the high elastic layer and can be flexibly stretched, when the non-woven fabric is stretched according to the angular, has the function of toughening the high-elasticity layer, enhances the deformation restoring force of the high-elasticity layer and accelerates the deformation restoring.

Description

Elastic non-woven fabric

Technical Field

The utility model relates to a non-woven fabrics, in particular to elasticity non-woven fabrics.

Background

Non-woven fabrics among the prior art adopts elastic material such as spandex as the raw materials, can make rich elastic non-woven fabrics, because the non-woven fabrics is not through weaving, and is whole even, and these elasticity non-woven fabrics all have elasticity in all directions, and at the in-process of practical application non-woven fabrics, the designer often only expects that the non-woven fabrics only has elasticity in a few directions. For example, when the non-woven fabric is used as the bag, the bag should have strong elasticity in the transverse direction and large elongation at break so as to be stretched in the transverse direction; and the longitudinal direction should have certain elasticity and be tough enough, so that the accommodation capacity can be ensured and larger weight can be borne.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a non-woven fabric which transversely has stronger elasticity and longitudinally has stronger toughness.

The utility model provides a technical scheme that its technical problem adopted is:

an elastic non-woven fabric comprises a high-elasticity layer and an interlaced net which are fixed with each other, wherein the interlaced net is arranged inside the high-elasticity layer, on one side surface or on two side surfaces, the interlaced net is composed of two groups of fiber bundle groups, each group of fiber bundle group comprises a plurality of fiber bundles which have certain elasticity and are parallel to each other, one group of fiber bundle group is overlapped on the other group of fiber bundle group at an included angle of 5-20 degrees, and the two groups of fiber bundle groups are fixed with each other at the intersection point between the fiber bundles.

Preferably, the interlaced mesh is arranged on the surface of the high-elasticity layer, the toughening fibers are arranged in the high-elasticity layer at equal intervals, and the bisector of the included angle between the fiber bundles is parallel to the toughening fibers.

Preferably, the outer diameter of the fiber bundle ranges from 0.5 to 1.5 mm.

Preferably, the two groups of fiber bundles are fixedly connected with the high elasticity layer through hot-pressing points at the intersection points between the fiber bundles.

The utility model has the advantages that: the utility model discloses utilize two sets of tow groups of group constitutions of stacking to become crisscross net, fix crisscross net and compound into the non-woven fabrics on the high elastic layer, contained angle between the tow becomes less acute angle, when the non-woven fabrics is according to the fill angle bisector direction of tow tensile, crisscross net is less to the influence of high elastic layer, can stretch in a flexible way, when the non-woven fabrics is according to the contained angle bisector direction tensile of tow, crisscross net atress deformation, stress action is in the high elastic layer, play toughening effect to the high elastic layer, and strengthened the deformation restoring force of high elastic layer, accelerate the deformation to reply.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic view of the layer structure of the present invention;

fig. 2 is a schematic diagram of a structure of a cross-net.

Detailed Description

Referring to fig. 1 and 2, an elastic nonwoven fabric includes a high elastic layer 1 and an interlaced web 2 fixed to each other, the interlaced web 2 is disposed inside, on one side surface or on both side surfaces of the high elastic layer 1, the interlaced web 2 is formed of two sets of fiber bundles, each set of fiber bundles includes a plurality of fiber bundles 21 having a certain elasticity and being parallel to each other, one set of fiber bundles is stacked on the other set of fiber bundles at an included angle of 5 ° to 20 °, and the two sets of fiber bundles are fixed to each other at a crossing point between the fiber bundles 21.

The utility model discloses utilize two sets of tow groups of pile to constitute the crisscross net, fix the crisscross net on high elasticity layer and compound into elasticity non-woven fabrics, the contained angle between tow 21 becomes less acute angle, when this elasticity non-woven fabrics stretches according to the angular bisector direction (hereinafter "horizontal") of the supplementary angle (being the obtuse angle) of two tow, the crisscross net is less to high elasticity layer's influence, can stretch in a flexible way; when the high-elasticity layer 1 is stretched to a larger elongation in the transverse direction, the angle of the angle compensation is reduced, the direction of the fiber bundle 21 tends to be consistent with the stretching direction, the toughening effect is realized on the high-elasticity layer 1, and the yield limit is improved. When the non-woven fabric is stretched according to the angular bisector direction (hereinafter referred to as longitudinal direction) of the included angle (namely the acute angle) of the fiber bundle, the staggered net 2 is stressed and deformed, the stress acts on the high elastic layer to toughen the high elastic layer, the deformation restoring force of the high elastic layer is enhanced, the deformation restoring is accelerated, the large-amplitude longitudinal stretching can be generated by needing larger force, and the non-woven fabric is applied to manufacturing bags and is reflected in that the non-woven fabric is not easy to fall down after being loaded with heavy objects, and the influence on the walking of people is reduced.

Preferably, the outer diameter of the fiber bundle 21 is in the range of 0.5 to 1.5 mm, and too thin is insufficient in strength and too thick is not good in appearance and masks the excellent elastic property of the high elastic layer. The two groups of fiber bundles are fixedly connected with the high elasticity layer 1 at the intersection point between the fiber bundles 21 through a hot pressing point.

Crisscross net 2 sets up the surface on high elasticity layer 1, the inside on high elasticity layer 1 is provided with toughening fiber 3 that the equidistance was arranged, the angular bisector of the contained angle between tow 21 with toughening fiber 3 is parallel. The toughening fibers serve to further enhance the machine direction tensile strength of the nonwoven, but make the nonwoven more difficult to stretch in the machine direction.

The utility model discloses in, polyurethane or polyether ester elastic fiber can be chooseed for use on the high elasticity layer, and polypropylene elastic fiber can be chooseed for use to the used fibre of tow, and polyamide can be chooseed for use to the fibre of toughening.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and decorations can be made without departing from the principle of the invention, and these modifications and decorations are also regarded as the protection scope of the present invention.

Claims

1. An elastic nonwoven fabric, characterized by comprising a high elastic layer (1) and an interlaced web (2) fixed to each other, wherein the interlaced web (2) is provided inside, on one side surface or on both side surfaces of the high elastic layer (1), the interlaced web (2) is composed of two sets of fiber bundle groups, each set of fiber bundle group comprises a plurality of fiber bundles (21) having a certain elasticity and being parallel to each other, one set of fiber bundle group is stacked on the other set of fiber bundle group at an included angle of 5 ° to 20 °, and the two sets of fiber bundle groups are fixed to each other at a crossing point between the fiber bundles (21).

2. Elastic nonwoven according to claim 1, characterised in that the interlaced web (2) is arranged on the surface of the highly elastic layer (1), that the highly elastic layer (1) is internally provided with equally spaced apart toughening fibres (3), and that the bisectors of the angles between the fibre bundles (21) are parallel to the toughening fibres (3).

3. Elastic nonwoven as claimed in claim 1, characterised in that the outer diameter of the fibre bundle (21) is in the range of 0.5-1.5 mm.

4. Elastic nonwoven according to claim 1, characterised in that the two groups of fibre tows are fixedly connected to the highly elastic layer (1) at the points of intersection between the fibre tows (21) by means of heat pressing points.