CN217409149U - Non-woven fabric structure and non-woven fabric comprising same - Google Patents

Abstract

The utility model relates to a non-woven fabric structure, which comprises a non-woven fabric body, wherein a plurality of through holes and 3D bulges are arranged on the non-woven fabric body, a plurality of rows of structural parts are arranged on the non-woven fabric body in the width direction of the non-woven fabric body, and each row of structural parts is formed by alternately distributing the through hole structural parts and the bulge structural parts at intervals and respectively extends along the longitudinal two ends of the non-woven fabric body; the through hole structure part is a through hole assembly formed by regularly arranging a plurality of through holes, the protrusion structure part comprises a 3D protrusion, and annular embossing which circumferentially surrounds the 3D protrusion is arranged at the position of the lower edge of the 3D protrusion; the through hole structural parts and the convex structural parts in the structural parts of two adjacent rows are respectively distributed in a staggered manner. The utility model discloses can reduce liquid and return the infiltration and effectively reduce rare just contact and adhere to skin, the diffusion of effective water conservancy diversion liquid on the non-woven fabrics surface improves liquid diffusion and osmotic speed, improves compliance, and the whole aesthetic property of product is excellent.

Description

Non-woven fabric structure and non-woven fabric comprising same

Technical Field

The utility model belongs to the field of sanitary materials, concretely relates to non-woven fabrics structure and non-woven fabrics that contain this structure.

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 low 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 affect the permeability, the use comfort of customers, 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 penetrating through the surface layer at the 3D convex part, the filling layer fills the cavity between the 3D convex part of the surface layer and the bottom layer, and the three layers of materials are mutually bonded at the bonding part and are kept in non-bonding contact at the part except the bonding part. 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 providing a non-woven fabrics structure and non-woven fabrics that contain this structure obtain one kind and both can reduce liquid and return the infiltration and effectively reduce rare just contact and adhere to skin, can effectively water conservancy diversion liquid again in the diffusion on non-woven fabrics surface, improve liquid diffusion, infiltration rate and compliance's non-woven fabrics structure and product.

In order to achieve the above object, the utility model discloses a following technical scheme realizes: the non-woven fabric structure comprises a non-woven fabric body, wherein a plurality of through holes and 3D bulges are arranged on the non-woven fabric body, a plurality of rows of structure parts are arranged on the non-woven fabric body in the width direction of the non-woven fabric body, and each row of structure parts is formed by alternately distributing the through hole structure parts and the bulge structure parts at intervals and respectively extends along the two longitudinal ends of the non-woven fabric body; the through hole structure part is a through hole assembly formed by regularly arranging a plurality of through holes, the protrusion structure part comprises a 3D protrusion, and annular embossing which circumferentially surrounds the 3D protrusion is arranged at the position of the lower edge of the 3D protrusion; the through hole structural parts and the convex structural parts in the structural parts of two adjacent rows are respectively distributed in a staggered manner.

Preferably, the outer contour of the assembly of through holes constitutes a symmetrical pattern.

Preferably, the outer contour of the through hole assembly comprises a fan-shaped contour formed by regularly arranging a plurality of through holes (punched holes) with the diameter of 0.5-1.5 mm.

Preferably, the through hole assembly is formed by connecting two fan-shaped profiles.

Preferably, the height of the through hole assembly is 20-25mm, and the width of the through hole assembly is 10-15 mm; the front-back distance of the through hole combination bodies in the same row is 38-45 mm.

Preferably, the 3D protrusion is a centrosymmetric protrusion or an axisymmetric protrusion.

Preferably, the 3D protrusion has an arc-shaped profile, and the arc-shaped profile includes a plurality of arc-shaped protruding profiles and an arc-shaped concave profile which naturally and arcuately joins the arc-shaped protruding profiles; and arc-shaped annular embossing surrounding the 3D bulges in the circumferential direction is arranged along the arc-shaped outline, and the 3D bulges are kept in a three-dimensional state through the arc-shaped annular embossing.

Preferably, the 3D protrusions are cotton-shaped protrusions, the cotton-shaped protrusions comprise cotton-shaped annular embossing patterns, cotton-shaped protrusions are arranged in the cotton-shaped annular embossing patterns, and the cotton-shaped protrusions are supported by the cotton-shaped annular embossing patterns to keep a three-dimensional state.

Preferably, the height of the cotton-shaped bulges is 8-12mm, the width of the cotton-shaped bulges is 8-13mm, and the distance between the cotton-shaped bulges in adjacent rows is 18-25 mm.

Preferably, all the through hole structure parts and the protrusion structure parts are distributed in the same direction.

In addition to the above technical means, there is further provided a nonwoven fabric comprising the nonwoven fabric structure.

The utility model discloses the beneficial effect who realizes does:

first, the utility model discloses it is protruding to be equipped with cotton configuration, cotton configuration is protruding including cotton cyclic annular impressed watermark, cotton form, on the one hand cotton form is protruding to keep three-dimensional state under the support of the cyclic annular impressed watermark of cotton form, and on the other hand can reduce liquid and return the infiltration and effectively reduce rare just contact and adhere to skin.

Secondly, the utility model discloses still be equipped with the through-hole assembly that the through-hole (punch) regular spread that is 0.5-1.5mm by a plurality of diameters formed, this through-hole assembly is connected the symmetry pattern that forms by two fan-shaped profiles, and the diffusion of liquid on the non-woven fabrics surface can effectively be guided to these through-holes, improves liquid diffusion and osmotic speed, improves the compliance. In addition, the cotton-shaped convex structure and the through hole combination body are symmetrically arranged, so that the overall attractiveness of the product is improved.

Drawings

FIG. 1 is a schematic view of a nonwoven fabric construction.

Fig. 2 is a partially enlarged schematic view of the nonwoven fabric structure of fig. 1.

Fig. 3 is a schematic structural view of fig. 2 taken along M-M.

FIG. 4 is a schematic view of a double fan profile of a through-hole assembly.

FIG. 5 is a schematic plan view of a cotton-shaped protrusion.

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 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 of the present application, the terms "including", "comprising" and variations thereof, if used, are intended to be inclusive and not limiting.

Please refer to fig. 1-5. This application the non-woven fabrics structure includes the non-woven fabrics body be equipped with a plurality of through-holes and 3D arch on the non-woven fabrics body. Specifically, the non-woven fabric body mainly comprises a first non-woven fabric layer 12 and a second non-woven fabric layer 11, wherein 3D protrusions are arranged on the first non-woven fabric layer 12 and are connected into a whole through pressing points in a compounding mode. Specifically, the through hole of the present application is formed by a punching process using existing punching equipment, and the protrusions are the same as the through hole, and can be known to those skilled in the art.

The structural characteristics of this application lie in:

the non-woven fabric body is provided with a plurality of rows of structural parts in the width direction of the non-woven fabric body, and each row of structural parts is formed by alternately distributing through hole structural parts and protruding structural parts at intervals and respectively extends along the two longitudinal ends of the non-woven fabric body.

And secondly, the through hole structure part is a through hole assembly formed by a plurality of through holes through regular arrangement, the protruding structure part comprises a 3D protrusion, and a circumferential ring is arranged at the lower protruding edge position of the 3D to surround the protruding ring-shaped embossing of the 3D.

And thirdly, the through hole structural parts and the convex structural parts in the two adjacent rows of the structural parts are respectively distributed in a staggered manner.

Specifically, for the overall appearance of the product to be more beautiful, the external contour of the through hole assembly forms a symmetrical pattern, and the method is implemented by the following steps:

(1) the outer contour of the through hole combination adopts a fan-shaped contour structure, and the fan-shaped contour structure can adopt a fan-shaped contour (fan-shaped contour) of a single fan. In a particular embodiment, the outer contour comprises a fan-shaped contour formed by a regular arrangement of a plurality of through holes 21 (perforations) having a diameter R of 0.5-1.5 mm.

In a specific embodiment, the two fan-shaped profiles 2 can be formed by connecting on the basis of a single fan-shaped profile, specifically, 74 through holes 21 with a diameter of 0.5-1.5mm are arranged, that is, a through hole assembly formed by connecting two fan-shaped profiles is formed.

(2) The height L3 of the double fan-shaped profile 2 (through hole assembly) is 20-25mm, and the width L4 is 10-15 mm. The front-back spacing L1 of the double fan-shaped profiles (through hole combination) in the same row is 38-45 mm.

Specifically, for the overall appearance of the product to be more attractive, the 3D protrusion is a central symmetric protrusion or an axisymmetric protrusion, and is implemented in the following manner:

(1) the 3D protrusion is provided with an arc-shaped outline, and the arc-shaped outline comprises a plurality of arc-shaped protruding outlines and an arc-shaped concave outline connected with the arc-shaped protruding outlines in a natural arc mode.

(2) And arc-shaped annular embossing surrounding the 3D bulges in the circumferential direction is arranged along the arc-shaped outline, and the 3D bulges are kept in a three-dimensional state through the arc-shaped annular embossing.

In a preferred embodiment, the 3D protrusion is a cotton-shaped protrusion 3, the cotton-shaped protrusion 3 includes a cotton-shaped annular embossing 32, a cotton-shaped protrusion 31 is disposed in the cotton-shaped annular embossing 32, and the cotton-shaped protrusion 31 maintains a three-dimensional state under the support of the cotton-shaped annular embossing. Wherein, the cotton-shaped bulge 3 adopts the following parameters:

(1) the height L5 of the cotton-shaped bulge is 8-12mm, and the width L6 is 8-13 mm.

(2) The spacing L2 of the cotton pattern in adjacent rows is 18-25 mm.

Further, all the through-hole structures and the protrusion structures are preferably distributed in the same direction. Of course, in some embodiments, a counter-directional distribution may also or simultaneously be used.

On the basis of the above embodiment, the present invention provides a nonwoven fabric 1 having the nonwoven fabric structure, wherein the nonwoven fabric 1 is provided with the cotton-shaped protrusions 3 and the double fan-shaped contours 2 (through-hole assembly). The non-woven fabric 1 can reduce liquid back-seepage and effectively reduce loose feces from contacting and adhering to the skin. Meanwhile, the through holes can effectively guide liquid to diffuse on the surface of the non-woven fabric, so that the liquid diffusion and permeation speed are increased, and the softness is improved. In addition, cotton-shaped protrusions 3 and double-fan-shaped outlines 2 are symmetrically arranged, so that the overall attractiveness of the product is improved.

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, which is to be limited only by the claims appended hereto.

Claims (10)

1. The utility model provides a non-woven fabrics structure, includes the non-woven fabrics body be equipped with a plurality of through-holes and 3D arch on the non-woven fabrics body, its characterized in that: the non-woven fabric body is provided with a plurality of rows of structural parts in the width direction of the non-woven fabric body, and each row of structural parts is formed by alternately distributing through hole structural parts and protruding structural parts at intervals and respectively extends along the two longitudinal ends of the non-woven fabric body; the through hole structure part is a through hole assembly formed by regularly arranging a plurality of through holes, the protrusion structure part comprises a 3D protrusion, and annular embossing which circumferentially surrounds the 3D protrusion is arranged at the position of the lower edge of the 3D protrusion; the through hole structural parts and the convex structural parts in the structural parts of two adjacent rows are respectively distributed in a staggered manner.

2. The nonwoven fabric construct of claim 1, wherein: the outer contour of the through hole assembly forms symmetrical patterns which are distributed in the same direction.

3. The nonwoven fabric construct of claim 2 wherein: the outer contour of the through hole assembly comprises a fan-shaped contour formed by regularly arranging a plurality of through holes with the diameters of 0.5-1.5 mm.

4. The nonwoven fabric construct of claim 3, wherein: the through hole assembly is formed by connecting two fan-shaped profiles.

5. The nonwoven fabric construct of claim 4, wherein: the height of the through hole assembly is 20-25mm, and the width of the through hole assembly is 10-15 mm; the front-back distance of the through hole combination bodies in the same row is 38-45 mm.

6. The nonwoven fabric construct of claim 1, wherein: the 3D bulges are centrosymmetric bulges or axisymmetric bulges and are distributed in the same direction.

7. The nonwoven fabric construct of claim 6, wherein: the 3D protrusion is provided with an arc-shaped outline, and the arc-shaped outline comprises a plurality of arc-shaped protruding outlines and an arc-shaped concave outline connected with the arc-shaped protruding outlines in a natural arc manner; the three-dimensional projection display device is characterized in that arc-shaped annular embossing surrounding the 3D projections in the circumferential direction is arranged along the arc-shaped outline, and the 3D projections are enabled to keep a three-dimensional state through the arc-shaped annular embossing.

8. The nonwoven fabric construct of claim 7, wherein: the three-dimensional embossing die comprises a three-dimensional embossing die body, wherein the three-dimensional embossing die body is provided with a three-dimensional protruding part, the three-dimensional protruding part is arranged on the three-dimensional embossing die body, and the three-dimensional protruding part is arranged on the three-dimensional protruding part and supported by the three-dimensional protruding part.

9. The nonwoven fabric construct of claim 8, wherein: the height of the cotton-shaped bulges is 8-12mm, the width of the cotton-shaped bulges is 8-13mm, and the distance between the cotton-shaped bulges in adjacent rows is 18-25 mm.

10. A nonwoven fabric, characterized in that: the nonwoven fabric is provided with a nonwoven fabric construction according to any of claims 1 to 9.

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