CN217409150U

CN217409150U - Non-woven fabric

Info

Publication number: CN217409150U
Application number: CN202220946793.6U
Authority: CN
Inventors: 钟俊钊
Original assignee: Foshan Jiahai Jincheng Technology Co ltd
Current assignee: Foshan Jiahai Jincheng Technology Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-09-13
Anticipated expiration: 2032-04-22

Abstract

The utility model relates to a non-woven fabric, which comprises a non-woven fabric body, wherein a plurality of through holes and rhombic bulges are arranged on the non-woven fabric body, a plurality of rows of bulges are arranged on the non-woven fabric body in the width direction of the non-woven fabric body, and each row of bulges is formed by arranging and distributing the rhombic bulges at intervals and respectively extends along the longitudinal two ends of the non-woven fabric body; all the rhombic bulges of each row of bulges are respectively aligned with the rhombic bulges of the adjacent row of bulges along the horizontal direction of the width of the non-woven fabric body, so that a rhombic block is constructed between each two adjacent rhombic bulges in each row and the two rhombic bulges in the adjacent row, which are horizontally aligned, and a plurality of through holes are uniformly distributed in the rhombic block at intervals. The utility model discloses reduce liquid and return the infiltration and effectively reduce rare just contact and adhere to skin, effective water conservancy diversion liquid improves liquid diffusion and osmotic speed at the diffusion on non-woven fabrics surface again, improves the compliance.

Description

Non-woven fabric

Technical Field

The utility model belongs to the sanitary material field, concretely relates to non-woven fabrics.

Background

In the field of disposable sanitary products, the structure and the performance of the non-woven fabric have great influence on the use performance of products such as baby diapers, baby toddler diapers, adult diapers, female sanitary towels and the like, and the problems of red buttocks of infants are caused if the phenomena of low liquid absorption speed, large rewet amount and poor dryness and comfort are frequently generated when consumers use the non-woven fabric. To improve the consumer's use experience, those skilled in the art have developed a nonwoven fabric with 3D protrusions comprising:

firstly, a single-layer concave-convex structure non-woven fabric: namely, the single-layer embossing perforated fiber product has a concave-convex cavity shape and a certain three-dimensional effect, but the single-layer embossing perforated fiber product has the following defects and unsolved problems: (1) the single-layer embossed fiber product has poor three-dimensional retentivity, and the thickness and the three-dimensional effect are greatly reduced when the single-layer embossed fiber product is made into a roll material; (2) when the diaper or sanitary towel is made of the material, the three-dimensional effect is greatly reduced due to the process stretching of the manufacturing process and the use of glue for adhering the diaper or sanitary towel on other materials; (3) the air permeability and the dryness are also affected; (4) the aesthetics may also be compromised. Therefore, when the traditional single-layer 3D non-woven fabric is used on a machine table device, the material deformation is serious, the width and the shrinkage degree of a material web are large, and the product yield is low; in addition, according to the problem analysis of a long-term production field, the fiber is longitudinally stretched under the tension of a production machine, so that the original hemispherical 3D bulge is changed into an elliptical central bulge, the height of the bulge is reduced, the bulge longitudinally extends and transversely narrows, and the uniform flow guide distribution of the short elliptical central bulge to urine is not as good as that of the high circular central bulge, so that the material deformation is caused.

Secondly, double-layer concave-convex structure non-woven fabric: namely, the surface layer is made into a 3D hollow solid, and the bottom layer is used as a support by thermal bonding. However, the above-mentioned heat-sealed hollow three-dimensional double layer still has the following defects and unsolved problems: (1) in a winding link in the manufacturing process, the 3D hollow solid body can become flat, and the shape of the hollow solid body can become askew, twisted and irregular; (2) when the material is used for manufacturing products such as diaper sanitary towels and the like, the 3D stereoscopic effect and the softness can be further reduced by technical stretching; (3) the reduction of the three-dimensional effect can influence the permeability, the comfort level of the user, the three-dimensional effect and the beauty.

Therefore, prior art CN208756334U provides an embossed paper diaper and diaper, which belongs to the field of personal hygiene products, the paper diaper is combined with hot rolling and piercing processes, and is distributed at intervals around the 3D protruding points of the hot air non-woven fabric, and part of the non-woven fabric fibers are solidified at different positions, so as to improve the overall structural strength of the 3D surface layer material, and finally, the 3D surface layer material cannot be easily deformed when being used in an upper machine, and the 3D protruding points are supported, so as to maintain stiffness and pattern, permanently isolate the baby excrement from the skin, and prevent the red buttocks.

In addition, the prior art CN112455014A provides a three-layer composite fiber material, and a preparation method, a device and an application thereof. The composite fiber material comprises a bottom layer, a filling layer and a surface layer, wherein the bottom layer, the filling layer and the surface layer are compounded in three layers through an adhesion part; wherein the surface layer comprises a 3D convex part and a concave part; wherein the surface layer has an opening in the 3D protruding portion through the surface layer, the filling layer fills the cavity between the 3D protruding portion of the surface layer and the bottom layer, and the three layers of materials are bonded to each other at the bonding portion and are kept in non-bonded contact at the portion other than the bonding portion. The solid 3D arch of no bonding that this three-layer composite fiber material formed can effectual reduction area of contact in the use, increases the level third dimension and keeps fine elasticity when using, promotes layer and intensity between the layer in order to solve the layering problem, and the dry and cool nature of enhancement, gas permeability, aesthetic property, travelling comfort and experience sense effectively reduce liquid and return the infiltration and effectively reduce rare just contact and adhere to skin.

However, the existing non-woven fabric with 3D protrusions has the problems that liquid is difficult to effectively and quickly diffuse on the surface of the non-woven fabric, the diffusion absorption utilization rate of the product due to insufficient diffusion needs to be improved, and meanwhile, the softness and the attractiveness of the product need to be improved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough among the prior art, the utility model aims at obtaining one kind and both can reducing liquid and return the infiltration and effectively reduce rare just contact and adhere to skin, can effectively again water conservancy diversion liquid at the non-woven fabrics of the diffusion on non-woven fabrics surface, this non-woven fabrics improves liquid diffusion, infiltration rate and compliance.

In order to achieve the above object, the utility model discloses a following technical scheme realizes: the non-woven fabric comprises a non-woven fabric body, wherein a plurality of through holes and rhombic bulges are arranged on the non-woven fabric body, a plurality of rows of bulges are arranged on the non-woven fabric body in the width direction of the non-woven fabric body, and each row of bulges is formed by arranging the rhombic bulges at intervals and extends along the two longitudinal ends of the non-woven fabric body respectively; all the rhombic bulges of each row of bulges are respectively aligned with the rhombic bulges of the adjacent row of bulges along the horizontal direction of the width of the non-woven fabric body, so that a rhombic block is constructed between each two adjacent rhombic bulges in each row and the two rhombic bulges in the adjacent row, which are horizontally aligned, and a plurality of through holes are uniformly distributed in the rhombic block at intervals.

Preferably, arc lines are respectively arranged at four diamond corners of the diamond-shaped bulge.

Preferably, the through holes are respectively arranged at least at four inner corner positions corresponding to the diamond-shaped block, and the through holes are respectively in tangential connection with the two diamond-shaped bulges positioned at two sides of the inner corner positions of the diamond-shaped block.

Preferably, more than one through hole is further arranged between the two inner corners, and the through holes are tangent to the diamond-shaped raised diamond edge line.

Preferably, nine through holes with the diameter of 0.6-1.2mm are arranged in the rhombic blocks in a matrix distribution mode.

Preferably, the height of the diamond-shaped bulge is 4-6mm, and the width of the diamond-shaped bulge is 4.5-6.5 mm.

Preferably, the height of the diamond-shaped bulge is 5mm, and the width of the diamond-shaped bulge is 5.5 mm.

Preferably, the distance between two adjacent rhombic bulges in each row is 4.5-6.5mm, and the distance between two adjacent rhombic bulges in the same row is 4.5-6.5 mm.

Preferably, the distance between two adjacent rhombic bulges in each row is 5.7mm, and the distance between two adjacent rhombic bulges in the same row is 5.8 mm; and the distance between the two through holes respectively positioned at the inner angle positions of the rhombic blocks in the vertical direction is 3.8 mm.

Preferably, all the rhombic bulges are distributed in the same direction.

The utility model discloses the beneficial effect who realizes does: the diamond-shaped protrusion of the utility model can reduce the liquid back-seepage and effectively reduce the contact of loose stool and the adhesion to skin. And simultaneously, the utility model discloses a through-hole can effectively water conservancy diversion liquid in the diffusion on non-woven fabrics surface, improves liquid diffusion and infiltration rate, improves the compliance.

Drawings

Fig. 1 is a schematic view of the nonwoven fabric of the present invention.

Fig. 2 is a partially enlarged view of the diamond-shaped protrusion and the through hole.

Fig. 3 is a schematic diagram of the distribution spacing between diamond-shaped protrusions and through holes.

Fig. 4 is a schematic structural view of fig. 2 taken along M-M.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are preferred embodiments of the invention and should not be considered as excluding other embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.

In the claims, the specification and the drawings, unless otherwise expressly limited, the terms "first," "second," or "third," etc. are used for distinguishing between different elements and not for describing a particular sequence.

In the claims, the specification and the drawings, unless otherwise expressly limited, to the extent that directional terms such as "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise" and the like are used, the positional or orientational relationships illustrated in the drawings are based on the positional and orientational relationships illustrated in the drawings and are merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention in any way.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the term "fixedly connected" or "fixedly connected" is used, which is to be understood broadly, that is, any connection mode without displacement relation or relative rotation relation between the two, that is, including non-detachably fixed connection, integrated connection and fixed connection through other devices or elements.

In the claims, the specification and the drawings, the terms "including", "comprising" and variations thereof, if used, are intended to be inclusive and not limiting.

Please refer to fig. 1-4. This application non-woven fabrics 1 includes the non-woven fabrics body be equipped with a plurality of through-holes 4 and rhombus arch 2 on the non-woven fabrics body. Specifically, the non-woven fabric body mainly comprises a first non-woven fabric layer 11 and a second non-woven fabric layer 12, wherein the first non-woven fabric layer 11 is provided with diamond-shaped protrusions 2, and the diamond-shaped protrusions are integrally connected through pressing points in a compounding mode, and can also be integrally connected through a cementing layer in a compounding mode. Specifically, the through hole 4 of the present application is formed by a punching process using existing punching equipment, and the diamond-shaped protrusion 2 is the same as the through hole 4, and can be known to those skilled in the art.

This application the non-woven fabrics body is equipped with the bellying of multiple row on the width direction of non-woven fabrics body, each is listed as the bellying forms by 2 interval arrangements of rhombus arch to extend along the vertical both ends of non-woven fabrics body respectively. Then, all the rhombic protrusions 2 of each row of protrusions are respectively aligned with the rhombic protrusions of adjacent rows of protrusions along the width horizontal direction of the non-woven fabric body, specifically, the adjacent

rhombic protrusions

2A and 2B in the same row are respectively aligned with the

rhombic protrusions

2C and 2C in the adjacent rows, so that a rhombic block 3 is constructed between the

rhombic protrusions

2A and 2B and between the

rhombic protrusions

2C and 2C, and by analogy, for other two adjacent rows, a rhombic block 3 is constructed between the two adjacent rhombic protrusions in each row and the two rhombic protrusions in the adjacent row which are horizontally aligned. Finally, a plurality of through holes 4 are uniformly distributed in the diamond-shaped block 3 at intervals.

In a specific embodiment, all the diamond-shaped protrusions 2 are distributed in the same direction. Arc lines (not shown in the figure) are respectively arranged at the four diamond corners of the diamond-shaped bulge 2.

In the embodiment, at least four inner corner positions corresponding to the diamond-shaped block 3 are respectively provided with a through hole 41, a through hole 42, a through hole 43 and a through hole 44, and each through hole is respectively tangent to two diamond-shaped protrusions at two sides of the inner corner position of the diamond-shaped block. On the basis of this embodiment, more than one through hole, such as through hole 45, may be further provided at a position between two of the inner corners, such as between through hole 41 and through hole 42, and so on, and more than one through hole may be further provided at a position between two of the inner corners, and these through holes are tangent to the diamond edge line of diamond-shaped protrusion 2.

In the specific embodiment, nine through holes 4 with a diameter R of 0.6-1.2mm are preferably arranged in a matrix distribution in the diamond-shaped block 3. Specifically, (1) the height L1 of the diamond-shaped protrusion 2 is 4-6mm, and the width L2 is 4.5-6.5 mm. Preferably, the height L1 of the diamond-shaped protrusion 2 is 5mm, and the width L2 is 5.5 mm. (2) The distance L4 between two adjacent diamond-shaped protrusions in each row is 4.5-6.5mm, and the distance L5 between two adjacent diamond-shaped protrusions in the same row is 4.5-6.5 mm. Preferably, the spacing L4 is 5.7mm and the spacing L5 is 5.8 mm. (3) The distance L3 between two through holes respectively located at the inner corners of the diamond-shaped block 2 in the vertical direction is 3.8 mm.

Through above embodiment acquisition non-woven fabrics, its rhombus is protruding can reduce liquid and return the infiltration and effectively reduce thin just contact and adhere to skin, and simultaneously, the through-hole on the non-woven fabrics can effectively water conservancy diversion liquid at the surperficial diffusion of non-woven fabrics, improves liquid diffusion and infiltration speed, improves the compliance.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a non-woven fabrics, includes the non-woven fabrics body be equipped with a plurality of through-holes and rhombus arch on the non-woven fabrics body, its characterized in that: the non-woven fabric body is provided with a plurality of rows of protrusions in the width direction of the non-woven fabric body, and each row of protrusions is formed by arranging rhombic protrusions at intervals and extends along the two longitudinal ends of the non-woven fabric body respectively; all the rhombic bulges of each row of bulges are respectively aligned with the rhombic bulges of the adjacent rows of bulges along the width horizontal direction of the non-woven fabric body, so that a rhombic block is constructed between each two adjacent rhombic bulges in each row and the two rhombic bulges in the adjacent rows which are horizontally aligned, and a plurality of through holes are uniformly distributed in the rhombic block at intervals.

2. The nonwoven fabric according to claim 1, characterized in that: arc lines are respectively arranged at four diamond corners of the diamond-shaped bulge.

3. The nonwoven fabric according to claim 2, characterized in that: the through holes are respectively arranged at four inner angle positions corresponding to the diamond-shaped blocks at least, and the through holes are respectively in tangent connection with the two diamond-shaped bulges positioned at two sides of the inner angle positions of the diamond-shaped blocks.

4. The nonwoven fabric according to claim 3, characterized in that: more than one through hole is further arranged between the two inner corners, and the through holes are tangent to the diamond-shaped convex diamond side line.

5. The nonwoven fabric according to claim 4, characterized in that: nine through holes with the diameter of 0.6-1.2mm are arranged in the rhombic blocks in a matrix distribution mode.

6. The nonwoven fabric according to any one of claims 1 to 5, characterized in that: the height of the diamond-shaped bulge is 4-6mm, and the width of the diamond-shaped bulge is 4.5-6.5 mm.

7. The nonwoven fabric according to claim 6, characterized in that: the height of the diamond-shaped bulge is 5mm, and the width of the diamond-shaped bulge is 5.5 mm.

8. The nonwoven fabric according to any one of claims 1 to 5, characterized in that: the distance between two adjacent rhombic bulges in each row is 4.5-6.5mm, and the distance between two adjacent rhombic bulges in the same row is 4.5-6.5 mm.

9. The nonwoven fabric according to claim 8, characterized in that: the distance between two adjacent rhombic bulges in each row is 5.7mm, and the distance between two adjacent rhombic bulges in the same row is 5.8 mm; and the distance between the two through holes respectively positioned at the inner angle positions of the rhombic blocks in the vertical direction is 3.8 mm.

10. The nonwoven fabric according to any of claims 1 to 5, 7, and 9, wherein: all the rhombic bulges are distributed in the same direction.