CN217753078U

CN217753078U - Environment-friendly flash-spun non-woven fabric

Info

Publication number: CN217753078U
Application number: CN202221550514.0U
Authority: CN
Inventors: 叶孔萌; 徐力博; 朱杰; 孙江
Original assignee: Jiangsu Qingyun New Material Technology Co ltd
Current assignee: Jiangsu Qingyun New Materials Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-11-08
Anticipated expiration: 2032-06-20

Abstract

The utility model provides an environmental protection dodges spins non-woven fabrics, it has solved the not enough scheduling problem of non-woven fabrics structural strength, and it includes the non-woven fabrics main part, and the non-woven fabrics main part has a pair of structural layer that the stack was arranged, and the structure groove of adjacent structural layer sets up relatively, and the structural layer is fixed through the laminating of butt fusion structure. The utility model has the advantages of high structural strength, good environmental protection effect and the like.

Description

Environment-friendly flash-spun non-woven fabric

Technical Field

The utility model belongs to the technical field of the non-woven fabrics, concretely relates to non-woven fabrics is spun in environmental protection sudden strain of a muscle.

Background

The non-woven fabric is also called non-woven fabric, needle-punched cotton, needle-punched non-woven fabric, etc. and is produced with polyester fiber and dacron fiber material and through needle-punching process, and may be made into different kinds of fabric with different thickness, hand feeling, hardness, etc. The non-woven fabric has the characteristics of moisture resistance, ventilation, flexibility, lightness, thinness, flame retardance, no toxicity, no odor, low price, recyclability and the like. Can be used in different industries, such as sound insulation, heat insulation, electric heating sheets, masks and the like. Where flash spinning extrudes a high polymer solution at a high pressure above its solvent boiling point, the solvent flash causes the polymer to cool and solidify to form fibers, typically for nonwoven processing. In actual processing and use, most of the existing flash-spun non-woven fabrics are made of disposable materials, and are not easy to degrade and recycle after use. In addition, the conventional flash spun non-woven fabric has a single structure, weak tear resistance and insufficient overall structural strength.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, chinese patent literature discloses an environment-friendly degradable non-woven fabric [202121023040.X ], which comprises a first non-woven fabric layer and a second non-woven fabric layer, wherein the first non-woven fabric layer is made of wood pulp fiber, the second non-woven fabric layer is made of bamboo fiber, a plurality of anti-slip protrusions are uniformly fixed on the lower surface of the first non-woven fabric layer, a plurality of positioning grooves are uniformly formed on the upper surface of the first non-woven fabric layer, positioning blocks corresponding to the positioning grooves are fixed on the lower surface of the second non-woven fabric layer, a plurality of transverse pull wires are uniformly fixed on the upper surface of the second non-woven fabric layer, and the pull wires are fixed to the second non-woven fabric layer through penetration of degradable yarns.

The problem of non-woven fabrics environmental protection recovery has been solved to a certain extent to above-mentioned scheme, but this scheme still has a lot of not enough, for example structural strength is not enough, and tear resistance weak scheduling problem.

Disclosure of Invention

The utility model aims at the above-mentioned problem, provide a reasonable in design, environmental protection that structural strength is high dodges spins the non-woven fabrics.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the utility model provides an environmental protection dodges spins non-woven fabrics, includes the non-woven fabrics main part, and non-woven fabrics main part one side has the moisture absorption layer through the laminating of adhesion layer, and non-woven fabrics main part another side has the enhancement layer through the laminating of adhesion layer, and the enhancement layer surface has the wearing layer through the laminating of adhesion layer, and the non-woven fabrics main part has a pair of structural layer that the stack was arranged, and the structure groove has been opened respectively to the one side that the structural layer is relative, and the structure groove of adjacent structural layer sets up relatively, and the structural layer is fixed through the laminating of butt fusion structure. Non-woven fabrics overall structure is maintained with the enhancement layer to the non-woven fabrics main part, sets up the butt fusion structure between the inside structure groove of non-woven fabrics main part, improves its unit structure intensity through increase structural layer surface area, and the butt fusion structure avoids the non-woven fabrics main part to pull the back and tears along the structure groove.

In the environment-friendly flash-spun non-woven fabric, the structure grooves on the structure layers are parallel to each other, and the structure grooves of the adjacent structure layers are arranged in parallel relative to the horizontal plane; the structure grooves on the structure layers are mutually parallel, and the structure grooves of the adjacent structure layers are arranged in a crossed way relative to the horizontal plane; or the structural grooves on the structural layers are in a grid shape, and the structural grooves of the adjacent structural layers are arranged in a crossed manner relative to the horizontal plane. The non-woven fabric with the tensile strength being isotropic or anisotropic is selected according to the requirement.

In the environment-friendly flash-spun non-woven fabric, the welding structure comprises a welding layer arranged between the structural layers, and two surfaces of the welding layer are respectively provided with welding strips filled in the structural grooves; alternatively, the welded structure comprises weld points disposed between the structural layers, the weld points being disposed at the structural channel intersections. The welding structure is a surface type or point type structure and connects the structural layers into a whole.

In the environment-friendly flash-spun non-woven fabric, the welding structure is made of PES, PA, TPU or EVA. The welding structure plays a secondary reinforcing role in the non-woven fabric main body.

In the above-mentioned environmental protection dodges spins the non-woven fabrics, the structural layer chooses for use the PLA material. PLA is an environment-friendly material and is easily melted when heated.

In foretell environmental protection dodges spins non-woven fabrics, the hydrophilic layer that the moisture absorption layer includes that double-deck stack arranges, and the hydrophilic layer chooses for use the PP material and opens respectively and have the hole that absorbs water. The double-layer hydrophilic layer further improves the water absorption effect of the moisture absorption layer, and the water absorption holes facilitate the ventilation of the inner layer and the outer layer.

In the above-mentioned environmental protection dodges spins the non-woven fabrics, accompany PE polymer ventilated membrane between the hydrophilic layer, PE polymer ventilated membrane is the wave structure. The PE high-molecular breathable film improves the water locking effect of the inner hydrophilic layer.

In foretell environmental protection dodges spins non-woven fabrics, the wearing layer chooses the PVC material for use, and wearing layer surface distributes has anti-skidding line, and anti-skidding line includes first stripe and the second stripe of interval setting, and first stripe height is less than the second stripe height, first stripe width is greater than the second stripe width. The wear-resistant layer is provided with anti-skid grains to improve the surface friction force.

In the environment-friendly flash-spun non-woven fabric, the anti-skid grains are distributed in a W-shaped wave manner.

In foretell environmental protection dodges spins the non-woven fabrics, the adhesion layer is viscose fiber, and the enhancement layer chooses for use the PET material, and the enhancement layer both sides distribute to be provided with the enhancement bump of the adhesion layer of impressing. Viscose has great viscidity, realizes the adhesion of each layer of non-woven fabrics, and the enhancement layer is the dacron material, has stronger shock resistance.

Compared with the prior art, the utility model has the advantages of: the structural layers which are arranged in a superposed manner are respectively provided with structural grooves, so that the surface area of the non-woven fabric main body is increased, and the tensile capacity of the non-woven fabric is improved by matching with the reinforcing layer, so that the non-woven fabric is not easy to tear, and the high structural strength is ensured; the structural layer is made of easily degradable PLA material, is melted after being heated, is convenient for non-woven fabric to be layered and recycled, and has better environmental protection effect; the moisture absorption layer is internally clamped with the PE macromolecule breathable film, so that the moisture absorption effect is better while the air permeability is ensured.

Drawings

Fig. 1 is a structural sectional view of a first embodiment of the present invention;

fig. 2 is a partial cross-sectional view of a first embodiment of the present invention;

fig. 3 is another partial cross-sectional view of a first embodiment of the invention;

fig. 4 is a schematic structural diagram of the wear-resistant layer according to the first embodiment of the present invention;

fig. 5 is a development view of a nonwoven fabric main body according to a first embodiment of the present invention;

fig. 6 is a development view of a nonwoven fabric main body according to a second embodiment of the present invention;

fig. 7 is a development view of a nonwoven fabric main body according to a third embodiment of the present invention;

in the figure, a non-woven fabric main body 1, a structural layer 11, a structural groove 12, an adhesive layer 2, a moisture absorption layer 3, a hydrophilic layer 31, a water absorption hole 32, a PE high-molecular breathable film 33, a reinforcing layer 4, reinforcing bumps 41, an abrasion-resistant layer 5, anti-skid lines 51, first lines 52, second lines 53, a welding structure 6, a welding layer 61, a welding strip 62 and a welding point 63.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1-5, an environmental protection dodges spins non-woven fabrics, including non-woven fabrics main part (1), non-woven fabrics main part (1) one side has moisture absorption layer (3) through adhesion layer (2) laminating, non-woven fabrics main part (1) another side has enhancement layer (4) through adhesion layer (2) laminating, enhancement layer (4) surface has wearing layer (5) through adhesion layer (2) laminating, non-woven fabrics main part (1) has a pair of structural layer (11) of stack arrangement, structural groove (12) have been opened respectively to the one side that structural layer (11) is relative, structural groove (12) of adjacent structural layer (11) set up relatively, structural layer (11) are fixed through the laminating of butt fusion structure (6). Non-woven fabrics main part (1) sets up between hygroscopic layer (3) and wearing layer (5), play the supporting role for the non-woven fabrics, be provided with parallel or relatively poor structure groove (12) of arranging between superimposed structural layer (11), the nodical of structure groove (12) is fixed by welded structure (6) simultaneously, compare in level and smooth structural layer (11) in surface, structural layer (11) that have structure groove (12) have stronger tensile strength along structure groove (12) extending direction, the cooperation laminating is in enhancement layer (4) of non-woven fabrics main part (1) one side, make non-woven fabrics main part (1) shock resistance promote, thereby guarantee the holistic structural strength of non-woven fabrics.

Specifically, the structural grooves (12) on the structural layers (11) are mutually parallel, and the structural grooves (12) of the adjacent structural layers (11) are arranged in parallel relative to the horizontal plane. The structural grooves (12) in the non-woven fabric main body (1) extend along the same direction, so that the tensile property of the non-woven fabric main body (1) in the extending direction of the structural grooves (12) is specialized, and the non-woven fabric main body can bear larger pulling moment.

In depth, the welding structure (6) comprises a welding layer (61) arranged between the structural layers (11), and the welding layer (61) is provided with welding strips (62) filled in the structural grooves (12) on two sides respectively. The welding layer (61) is connected with the structural layer (11) in a hot pressing mode, and the welding strips (62) are in one-to-one correspondence with the structural grooves (12) to avoid dislocation and separation of the structural layer (11).

Furthermore, the welding structure (6) is made of PES, PA, TPU or EVA. The polyether sulfone resin (PES), the nylon (PA), the thermoplastic polyurethane elastomer (TPU) and the ethylene-vinyl acetate copolymer (EVA) have good thermoplasticity, the structural layer (11) is welded in a hot pressing mode, and the welded layer (61) has high tear resistance after being cooled.

Furthermore, the structural layer (11) is made of PLA material. Polylactic acid macromolecular material degradable melts after heating, further joins with butt fusion structure (6) after the condensation, realizes the separation of structural layer (11) when being heated again and melting, conveniently carries out recovery processing respectively to moisture absorption layer (3) and wearing layer (5).

In addition, the moisture absorption layer (3) comprises a double-layer superposed hydrophilic layer (31), and the hydrophilic layer (31) is made of PP materials and is respectively provided with water absorption holes (32). Polyacrylate or polyacrylate is usually added into the hydrophilic layer (31) made of polypropylene material to improve the water absorption performance, and water is normally supplied to the water absorption holes (32).

Meanwhile, a PE high polymer breathable film (33) is clamped between the hydrophilic layers (31), and the PE high polymer breathable film (33) is of a wave structure. The PE polymer breathable film (33) has both breathable and waterproof effects, and residual moisture is absorbed by the moisture absorption layer (3) of the inner layer.

Visibly, the wear-resistant layer (5) is made of PVC materials, anti-skid grains (51) are distributed on the surface of the wear-resistant layer (5), the anti-skid grains (51) comprise first stripes (52) and second stripes (53) which are arranged at intervals, the height of the first stripes (52) is lower than that of the second stripes (53), and the width of the first stripes (52) is larger than that of the second stripes (53). The friction force is improved by the anti-slip lines (51) on the surface of the wear-resistant layer (5), the first stripes (52) and the second stripes (53) are arranged at intervals, and meanwhile, the second stripes (53) are protruded relative to the first stripes (52).

Obviously, the antiskid lines (51) are distributed in a W-shaped wave mode. The anti-skid lines (51) are provided with folded angles, so that the wear-resistant layer (5) is prevented from being partially torn due to bending.

Preferably, the adhesion layer (2) is viscose, the reinforcing layer (4) is made of PET (polyethylene terephthalate), and reinforcing salient points (41) pressed into the adhesion layer (2) are distributed on two sides of the reinforcing layer (4). The adhesion layer (2) adheres the non-woven fabric main body (1), the moisture absorption layer (3), the reinforcing layer (4) and the wear-resistant layer (5) to each other. The reinforcing layer (4) made of the PET material has better fatigue resistance and mechanical property, and protects the inner non-woven fabric main body (1).

Example two

As shown in fig. 6, the structure, principle and implementation steps of the present embodiment are similar to those of the present embodiment, except that the structural grooves (12) on the structural layers (11) in the present embodiment are parallel to each other, and the structural grooves (12) of adjacent structural layers (11) are arranged crosswise relative to the horizontal plane. The structural grooves (12) are mutually crossed, so that the tensile properties of the non-woven fabric main body (1) in all directions of a horizontal plane tend to be consistent, and the structural grooves (12) form a grid structure integrally.

EXAMPLE III

As shown in fig. 7, the structure, principle and implementation steps of this embodiment are similar to those of the second embodiment, except that the structural grooves (12) on the structural layer (11) in this embodiment are in a grid shape, and the structural grooves (12) of adjacent structural layers (11) are arranged crosswise relative to the horizontal plane. The structural grooves (12) of the double-grid structure are arranged in a superposed mode, so that the tensile property of the non-woven fabric main body (1) is further improved, and the welding points (63) are selected to maintain the fluffy structure of the non-woven fabric main body (1) and ensure the welding stability.

Obviously, the welded structure (6) comprises welding points (63) arranged between the structural layers (11), the welding points (63) being arranged at the intersections of the structural grooves (12). The welding points (63) are distributed in a matrix shape and are directly hot-pressed and formed by the structural layer (11).

In summary, the principle of the present embodiment is: structural grooves (12) are formed between the structural layers (11) of the non-woven fabric main body (1), the increased groove body structure improves the tensile property of the structural layers (11) in unit area, and the reinforced layer (4) attached to the non-woven fabric main body (1) further improves the impact resistance of the non-woven fabric main body, so that the integral structural strength of the non-woven fabric is ensured.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms such as the nonwoven fabric main body 1, the structural layer 11, the structural grooves 12, the adhesive layer 2, the moisture absorption layer 3, the hydrophilic layer 31, the water absorption holes 32, the PE polymer breathable film 33, the reinforcing layer 4, the reinforcing protrusions 41, the wear-resistant layer 5, the anti-slip texture 51, the first stripes 52, the second stripes 53, the welded structure 6, the welded layer 61, the welded strips 62, and the welded points 63 are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides an environmental protection dodges spins non-woven fabrics, includes non-woven fabrics main part (1), its characterized in that, non-woven fabrics main part (1) one side have moisture absorption layer (3) through adhesion layer (2) laminating, the non-woven fabrics another side have enhancement layer (4) through adhesion layer (2) laminating, enhancement layer (4) surface laminate through adhesion layer (2) and have wearing layer (5), non-woven fabrics main part (1) structural layer (11) that a pair of stack was arranged have, structural layer (11) relative one side open respectively and have structural groove (12), structural groove (12) of adjacent structural layer (11) set up relatively, structural layer (11) laminate fixedly through butt fusion structure (6).

2. An environment-friendly flash-spun non-woven fabric according to claim 1, characterized in that the structure grooves (12) on the structure layers (11) are parallel to each other, and the structure grooves (12) of adjacent structure layers (11) are arranged in parallel relative to the horizontal plane; the structural grooves (12) on the structural layers (11) are parallel to each other, and the structural grooves (12) of adjacent structural layers (11) are arranged in a cross way relative to the horizontal plane; or the structural grooves (12) on the structural layers (11) are in a grid shape, and the structural grooves (12) of the adjacent structural layers (11) are arranged in a cross way relative to the horizontal plane.

3. An eco-friendly flash spun nonwoven fabric according to claim 2, wherein said welding structure (6) comprises a welding layer (61) disposed between the structural layers (11), said welding layer (61) having welding strips (62) filled in the structural grooves (12) on both sides thereof; or the welding structure (6) comprises welding points (63) arranged between the structural layers (11), and the welding points (63) are arranged at the intersection of the structural grooves (12).

4. An environmentally friendly flash spun nonwoven fabric according to claim 3, wherein the welding structure (6) is made of PES, PA, TPU or EVA.

5. The environment-friendly flash-spun non-woven fabric according to claim 2, wherein the structural layer (11) is made of PLA.

6. An environmentally friendly flash spun nonwoven fabric according to claim 1, wherein the moisture absorption layer (3) comprises two stacked hydrophilic layers (31), and the hydrophilic layers (31) are made of PP material and are respectively provided with water absorption holes (32).

7. The environment-friendly flash-spun non-woven fabric according to claim 6, wherein a PE high polymer breathable film (33) is sandwiched between the hydrophilic layers (31), and the PE high polymer breathable film (33) is of a wave structure.

8. The environment-friendly flash-spun non-woven fabric according to claim 1, wherein the wear-resistant layer (5) is made of PVC, the surface of the wear-resistant layer (5) is distributed with anti-slip stripes (51), the anti-slip stripes (51) comprise first stripes (52) and second stripes (53) which are arranged at intervals, the height of the first stripes (52) is lower than that of the second stripes (53), and the width of the first stripes (52) is greater than that of the second stripes (53).

9. The eco-friendly flash-spun nonwoven fabric according to claim 8, wherein the non-slip patterns (51) are distributed in a W-shaped wavy manner.

10. An environment-friendly flash-spun non-woven fabric according to claim 1, wherein the adhesive layer (2) is viscose, the reinforcing layer (4) is made of PET, and reinforcing protrusions (41) pressed into the adhesive layer (2) are distributed on two sides of the reinforcing layer (4).