Paper diaper

Abstract

The utility model relates to the field of disposable hygienic products, in particular to a paper diaper, which mainly solves the problem of poor flow guide effect of paper diapers in the prior art, and comprises a paper diaper body and ear stickers, the paper diaper body is provided with a front waist area, a rear waist area and a crotch area connected with the front waist area and the rear waist area, the ear sticker comprises an ear sticker body and an ear sticker auxiliary piece, the paper diaper body comprises a liquid-permeable surface layer, an absorption core layer and a liquid-tight bottom layer which are sequentially stacked from top to bottom, a plurality of first flow guide grooves are concavely formed in the upper surface of the absorption core layer side by side, and a plurality of second flow guide grooves are concavely formed in the upper surface of the absorption core layer side by side; the first flow guide grooves and the second flow guide grooves are distributed in a crossed mode, so that the crossed areas of the first flow guide grooves and the second flow guide grooves form confluence areas, a plurality of absorption units of prismatic structures are defined by the first flow guide grooves and the second flow guide grooves, and fillet structures are arranged on the absorption units and located at the confluence areas.

Description

Technical Field

[0001] The utility model relates to the field of disposable sanitary products, in particular to a diaper. Background Art

[0002] The structure of diapers is generally as follows: from top to bottom, it includes a liquid-permeable surface layer, an absorbent core layer, and a liquid-impermeable bottom layer stacked in sequence. The absorbent core layer is composed of a fluffy non-woven fabric combined with a high-molecular water-absorbent resin or a mixture of wood pulp fibers and a high-molecular water-absorbent resin and wrapped by a non-woven fabric to form a block structure for absorbing and retaining human excreta. The liquid-permeable surface layer is composed of a hydrophilic non-woven fabric and a hydrophobic non-woven fabric fixed on both lateral sides of the hydrophilic non-woven fabric, the hydrophilic non-woven fabric is adhered to the upper surface of the absorbent core layer and bent downward to cover the two lateral sides of the absorbent core layer, and is adhered to the liquid-impermeable bottom layer with the absorbent core layer, for providing a comfortable and dry feeling when in contact with the body, while allowing liquid to pass freely into the absorbent core layer below. The liquid-impermeable bottom layer is composited with a breathable and water-impermeable film and a hydrophobic non-woven fabric, for retaining the absorbed liquid in the absorbent core layer, thereby preventing the absorbed liquid from soiling the wearer's pants.

[0003] Normally, the absorbent core layer is composed of a fluffy non-woven fabric combined with a high-molecular absorbent resin or a mixture of wood pulp fibers and a high-molecular absorbent resin and wrapped by a non-woven fabric to form a block structure. The high-molecular absorbent resin is evenly distributed on the absorbent core layer. During use, since urine is concentrated in one area for absorption and diverted outward, due to the water absorption properties of the high-molecular absorbent resin and the diversion effect of the absorbent core layer, the edges of the absorbent core layer with a block structure are already saturated in the middle area when no urine is absorbed. Continuing to use it will not only reduce comfort, but also greatly cause side leakage. If it is replaced in time, it will cause a waste of resources. Utility Model Content

[0004] Therefore, in view of the above problems, the utility model provides a diaper, which mainly solves the problem of poor drainage effect of diapers in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A disposable diaper, comprising a diaper body and ear tabs. The longitudinal direction is defined as the direction extending along the length of the diaper body, and the transverse direction is defined as the direction extending along its width. The diaper body has a front waist region, a rear waist region, and a crotch region connecting the front waist region and the rear waist region. The ear tabs include ear tab bodies provided on the transverse sides of the rear waist region and ear tab auxiliary pieces provided on the transverse sides of the front waist region. The diaper body includes a liquid-permeable surface layer, an absorbent core layer, and a liquid-impermeable bottom layer stacked in sequence from top to bottom. A plurality of first diversion grooves are concavely provided side by side on the upper surface of the absorbent core layer, and a plurality of second diversion grooves are concavely provided side by side on the upper surface of the absorbent core layer. Each of the first diversion grooves and the second diversion grooves are cross-distributed, so that a confluence area is formed at the cross-region of the first diversion groove and the second diversion groove, and a plurality of absorbent units in a rhombus structure are surrounded by the first diversion groove and the second diversion groove. Each absorbent unit is provided with a rounded corner structure at the confluence area.

[0007] Further, the depth dimension at the confluence area on the absorbent core layer is greater than the depth dimension of the first diversion groove and / or the second diversion groove.

[0008] Further, a relief groove is concavely provided at the longitudinal middle of the transverse sides of the absorbent core layer.

[0009] Further, the ear tab body includes a connecting portion compounded with the diaper body, a fitting portion integrally connected to the connecting portion, and a pasting portion compounded on the fitting portion. A pasting area is provided on the pasting portion. The longitudinal width dimension of the connecting portion is greater than the longitudinal width dimension of the fitting portion, and the longitudinal width dimension of the fitting portion is greater than the longitudinal width dimension of the pasting area.

[0010] Further, the fitting portion has a first inclined edge and a second inclined edge, and the slope of the first inclined edge is greater than the slope of the second inclined edge.

[0011] Further, rounded corners are provided between the first inclined edge, the second inclined edge and the longitudinal sides of the connecting portion.

[0012] Further, the included angle between the first inclined edge and the second inclined edge is 20° to 45°.

[0013] By adopting the foregoing technical solution, the beneficial effects of the present utility model are as follows: For this disposable diaper, the ear tab body provided on the transverse sides of the rear waist area cooperates with the ear tab auxiliary piece provided on the transverse sides of the front waist area, so that the circumferential dimension of the waist area is increased, that is, it can be applicable to large-sized waists, and at the same time, it can prevent friction with the user's skin, improve the use comfort, and through the first diversion groove and the second diversion groove arranged crosswise on the absorbent core layer, the discharged urine can flow along the first diversion groove and the second diversion groove, improving the diffusion speed of the liquid, and further improving the absorption uniformity. At the same time, part of the urine in the first diversion groove and the second diversion groove oozes out through the side wall of the diversion groove and enters the absorption unit and is absorbed, so that the absorption efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a top view structural schematic diagram of an embodiment of the present utility model;

[0015] Figure 2 is a top view structural schematic diagram of the absorbent core layer in an embodiment of the present utility model;

[0016] Figure 3 is Figure 2 a partial enlarged view of part A in

[0017] Figure 4 is a cross-sectional structural schematic diagram of the disposable diaper body in an embodiment of the present utility model;

[0018] Figure 5 is a structural schematic diagram of the ear tab body in the unfolded state in an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] An embodiment of the present utility model is as follows:

[0021] Refer to Figures 1 to 5As shown in the figure, a disposable diaper includes a diaper body 1 and ear tabs 2. The longitudinal direction is defined as the direction extending along the length of the diaper body 1, and the transverse direction is defined as the direction extending along its width. The diaper body 1 has a front waist region 101, a rear waist region 102, and a crotch region 103 connecting the front waist region 101 and the rear waist region 102. The ear tabs 2 include ear tab bodies 21 provided on the transverse two sides of the rear waist region 102 and ear tab auxiliary pieces 22 provided on the transverse two sides of the front waist region 101. The diaper body 1 includes a liquid-permeable surface layer 11, a diversion layer 12, an absorbent core layer 13, an impermeable bottom layer 14, and an elastic sheet 15 that are stacked in sequence from top to bottom. The elastic sheet 15 is provided at the rear waist region 102. A plurality of first diversion grooves 3 are concavely provided side by side on the upper surface of the absorbent core layer 13. A plurality of second diversion grooves 4 are concavely provided side by side on the upper surface of the absorbent core layer 13. Each of the first diversion grooves 3 and the second diversion grooves 4 is cross-distributed, so that a confluence area 5 is formed at the cross area of the first diversion groove 3 and the second diversion groove 4, and the first diversion groove 3 and the second diversion groove 4 enclose a plurality of absorbent units 6 having a rhombus structure. A fillet structure 7 is provided on each of the absorbent units 6 at the confluence area 5. A relief groove 8 is concavely provided at the longitudinal middle of the transverse two sides of the absorbent core layer 13.

[0022] The liquid-permeable surface layer 11 includes a hydrophilic non-woven fabric 111, hydrophobic non-woven fabrics 112 provided on the transverse two sides of the hydrophilic non-woven fabric 111 and covering the transverse two side surfaces of the absorbent core layer 13, and elastic rubbers 113 provided on the facing side edges of the hydrophobic non-woven fabrics 112. The impermeable bottom layer 14 includes a bottom non-woven fabric 141 and a PE film 142 provided on the bottom non-woven fabric 141. Leg elastics 9 are provided on the transverse two sides of the absorbent core layer 13 between the liquid-permeable surface layer 11 and the impermeable bottom layer 14.

[0023] In this disposable diaper, through the cooperation of the ear tab bodies 21 provided on the transverse two sides of the rear waist region 102 and the ear tab auxiliary pieces 22 provided on the transverse two sides of the front waist region 101, the surrounding size of the waist region is increased, that is, it can be applicable to a large-size waist circumference, and at the same time, it can prevent friction with the user's skin, improve the use comfort, and through the first diversion grooves 3 and the second diversion grooves 4 cross-provided on the absorbent core layer 13, the discharged urine can flow along the first diversion grooves 3 and the second diversion grooves 4, improve the diffusion speed of the liquid, and then improve the absorption uniformity. At the same time, part of the urine in the first diversion grooves 3 and the second diversion grooves 4 oozes out through the side walls of the diversion grooves and enters the absorbent units 6 and is absorbed, so that the absorption efficiency is improved.

[0024] Moreover, the depth dimension of the absorbent core layer 13 at the confluence area 5 is greater than the depth dimensions of the first diversion groove 3 and the second diversion groove 4, so that the confluence area 5 can provide the function of rapid infiltration while guiding the flow, forming a confluence area 5 in a dispersed state, further improving the absorption uniformity on the absorbent core layer 13, and enhancing the absorption capacity and absorption efficiency.

[0025] In this embodiment, the ear tab body 21 includes a connecting portion 211 compounded with the diaper body 1, a fitting portion 212 integrally connected to the connecting portion 211, and a pasting portion 213 compounded on the fitting portion 212. A pasting area 214 is provided on the pasting portion 213. The longitudinal width dimension of the connecting portion 211 is greater than the longitudinal width dimension of the fitting portion 212, and the longitudinal width dimension of the fitting portion 212 is greater than the longitudinal width dimension of the pasting area 213. The fitting portion 212 has a first inclined edge 201 and a second inclined edge 202. The slope of the first inclined edge 201 is greater than the slope of the second inclined edge 202. Rounded corners 10 are provided between the first inclined edge 201, the second inclined edge 202 and the longitudinal two side edges of the connecting portion 211. The included angle between the first inclined edge 201 and the second inclined edge 202 is 20° to 45°, preferably 25°. Moreover, both the connecting portion 211 and the fitting portion 212 of the ear tab body 21 include an outer layer body 301 and an inner layer body 302, and the transverse length dimension of the outer layer body 301 is greater than the transverse length dimension of the inner layer body 302.

[0026] The connecting portion 211 provided on the ear tab body 21 is compounded on the diaper body 1, and by providing the fitting portion 212 and the pasting portion 213, the size of the ear tab body 21 is increased, so that the distance between the pasting portion 213 and the transverse side edge of the diaper body 1 is increased. When in use, the pasting area 214 of the pasting portion 213 is adhered to the front waist area 101 of the diaper body 1, and the fitting portion 212 is attached to both sides of the waist circumference, so that the ear tab 2 can be better attached to the human waist circumference. At the same time, the first inclined edge 201 and the second inclined edge 202 provided on the fitting portion 212, and the rounded corners 10 are provided between the first inclined edge 201, the second inclined edge 202 and the longitudinal two side edges of the connecting portion 211, which can better improve the fitting property of the ear tab 2 and enhance the lateral support property, thereby improving the fitting property of the ear tab body 21, avoiding the problem of the ear tab 2 falling off from the diaper body 1, and improving the use convenience.

[0027] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "linked", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0029] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in terms of form and details without departing from the spirit and scope of the present invention as defined by the appended claims, and all such changes are within the protection scope of the present invention.

Claims

1. A disposable diaper, characterized in that: It includes a diaper body and ear tabs. The longitudinal direction is defined as the direction extending along the length of the diaper body, and the transverse direction is defined as the direction extending along its width. The diaper body has a front waist area, a rear waist area, and a crotch area connecting the front waist area and the rear waist area. The ear tabs include ear tab bodies provided on the transverse two sides of the rear waist area and ear tab auxiliary pieces provided on the transverse two sides of the front waist area. The diaper body includes a liquid-permeable surface layer, an absorbent core layer, and an impermeable bottom layer that are stacked in sequence from top to bottom. A plurality of first diversion grooves are concavely provided side by side on the upper surface of the absorbent core layer, and a plurality of second diversion grooves are concavely provided side by side on the upper surface of the absorbent core layer. Each of the first diversion grooves and the second diversion grooves are cross-distributed, so that the cross area of the first diversion groove and the second diversion groove forms a confluence area, and the first diversion groove and the second diversion groove enclose a plurality of absorbent units in a rhombus structure. Each of the absorbent units is provided with a rounded corner structure at the confluence area.

2. The disposable diaper according to claim 1, wherein: The depth dimension of the absorbent core layer at the confluence area is greater than the depth dimension of the first diversion groove and / or the second diversion groove.

3. The disposable diaper according to claim 1, wherein: Relieving grooves are concavely provided in the longitudinal middle parts of the transverse two sides of the absorbent core layer.

4. The disposable diaper according to any one of claims 1 to 3, characterized in that: The ear tab body includes a connecting part compounded with the diaper body, a fitting part integrally connected to the connecting part, and a sticking part compounded on the fitting part. A sticking area is provided on the sticking part. The longitudinal width dimension of the connecting part is greater than the longitudinal width dimension of the fitting part, and the longitudinal width dimension of the fitting part is greater than the longitudinal width dimension of the sticking area.

5. The disposable diaper according to claim 4, wherein: The fitting part has a first inclined side and a second inclined side, and the slope of the first inclined side is greater than the slope of the second inclined side.

6. The disposable diaper according to claim 5, wherein: Rounded corners are provided between the first inclined side, the second inclined side and the longitudinal two sides of the connecting part.

7. The disposable diaper according to claim 6, wherein: The included angle between the first inclined side and the second inclined side is 20° to 45°.

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