CN217366338U

CN217366338U - Breathable baby paper diaper

Info

Publication number: CN217366338U
Application number: CN202220794115.2U
Authority: CN
Inventors: 郑晓辉; 杨志彬
Original assignee: Fujian Novartis Sanitary Products Co ltd
Current assignee: Fujian Novartis Sanitary Products Co ltd
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-09-06
Anticipated expiration: 2032-04-07

Abstract

The utility model relates to the field of disposable sanitary products, in particular to a breathable baby diaper, which comprises a diaper body, wherein the diaper body comprises a liquid-permeable surface layer, an intermediate core layer and a liquid-impermeable bottom layer which are sequentially stacked, the intermediate core layer is formed by the liquid-permeable surface layer and the liquid-impermeable bottom layer in an up-and-down cladding manner, a fusiform auxiliary absorption groove is formed on the liquid-permeable surface layer in a hot-pressing manner, two ends of the auxiliary absorption groove extend along the length direction of the diaper body, supporting retaining walls are symmetrically arranged on two sides of the auxiliary absorption groove, and the supporting retaining walls are realized to stand on two sides of the auxiliary absorption groove in a natural state through rubber bands; a plurality of first air-permeable through holes are densely formed in the liquid-impermeable bottom layer, an ultrafiltration membrane covers the lower portion of the liquid-impermeable bottom layer, second air-permeable through holes are formed in the ultrafiltration membrane, and the aperture of each second air-permeable through hole is 50nm-100nm, so that the technical problems that the existing paper diaper is single in structure and poor in air permeability are solved.

Description

Breathable baby diaper

Technical Field

The utility model relates to a disposable hygienic articles field especially relates to a ventilative baby diaper.

Background

Three core carriers for constructing the paper diaper comprise: surface layer, core body, basement membrane; often the basement membrane then becomes the ventilative road stop tiger of panty-shape diapers, this is because this function that does not let the urine permeate out is compromise with the design with the chooseing of basement membrane, and the panty-shape diapers sold on the market at present mainly cover three kinds of basement membranes: a PE plastic bottom film, a PE + spun-bonded non-woven fabric surface layer and a hot air non-woven fabric bottom film;

PE plastic basement membrane: the air permeability is the worst, and the hand feeling is also poor;

PE + spunbond nonwoven facing: the hand feeling is good, but the air permeability is general;

hot air non-woven fabric basement membrane: soft hand feeling and good air permeability.

The utility model discloses a chinese patent application number is 202021723766. X's utility model discloses a ventilative panty-shape diapers, including top layer, bottom and cladding be in absorption sandwich layer between top layer and the bottom, top layer, absorption sandwich layer and bottom stack gradually the setting, the top layer comprises middle surface course and the three-dimensional enclosure in both sides, the bottom is from top to bottom in proper order to fold and establish leak protection layer, side leak protection layer, leak protection layer and outer parcel layer down, go up leak protection layer and refuse the non-woven fabrics for SMS through three proofings processing, leak protection layer is for melting the melt-blown non-woven fabrics down. The utility model discloses a bottom adopts and refuses water non-woven fabrics and melt-blown non-woven fabrics and PE membrane composite construction, not only makes panty-shape diapers have good gas permeability and leak protection effect, but also has higher stretch-proofing ability to outer parcel layer is soft hot-blast non-woven fabrics, has higher close skin nature, and the comfort level that can improve the soft and dress of panty-shape diapers as panty-shape diapers's skin. However, the above proposed solution only enhances the air permeability of the diaper through the selection of the fabric structure, and does not improve the product structure, so the practicability is limited.

SUMMERY OF THE UTILITY MODEL

Therefore, to the above-mentioned problem, the utility model provides a ventilative baby diaper solves current diaper single structure, the relatively poor technical problem of gas permeability.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a breathable baby diaper comprises a diaper body, wherein the diaper body comprises a liquid-permeable surface layer, a middle core layer and a liquid-impermeable bottom layer which are sequentially stacked, the middle core layer is vertically wrapped by the liquid-permeable surface layer and the liquid-impermeable bottom layer, a shuttle-shaped auxiliary absorption groove is formed in the liquid-permeable surface layer in a hot-pressing mode, and two ends of the auxiliary absorption groove extend along the length direction of the diaper body;

the supporting retaining walls are symmetrically arranged on two sides of the auxiliary absorption groove, and the supporting retaining walls stand on two sides of the auxiliary absorption groove in the natural state of the paper diaper body through rubber bands;

a plurality of first air-permeable through holes are densely formed in the liquid-impermeable bottom layer, the aperture of each first air-permeable through hole is 1-3 mm, an ultrafiltration membrane covers the lower portion of the liquid-impermeable bottom layer, a second air-permeable through hole is formed in the ultrafiltration membrane, and the aperture of each second air-permeable through hole is 50-100 nm.

Furthermore, comfortable portions are symmetrically arranged on two sides of the diaper body in the width direction, and each comfortable portion comprises a middle straight transition portion and arc portions located at two ends of the transition portion.

Further, the comfortable part is coated with flexible cotton.

Furthermore, a plurality of guide grooves are arranged in the area, located under the auxiliary absorption grooves, on the middle core layer, and the depth of each guide groove is 1mm-3 mm.

Furthermore, the diversion grooves are strip-shaped grooves, one end of each diversion groove is densely arranged at the central position of the middle core layer, and the other end of each diversion groove is extended in a diffusion mode towards the length direction of the paper diaper body.

By adopting the technical scheme, the beneficial effects of the utility model are that:

1. the universal structure of the liquid-permeable surface layer, the middle core layer and the liquid-impermeable bottom layer is adopted, so that the phenomenon that the air permeability is poor due to the increase of the thickness of the paper diaper body is avoided; a shuttle-shaped auxiliary absorption groove is formed on the liquid-permeable surface layer in a hot pressing manner, so that urine can be guided and collected during use, and the urine is prevented from diffusing to the periphery; the supporting retaining walls are arranged on the two sides of the auxiliary absorption groove, and are used for being matched with the auxiliary absorption groove on one hand to avoid peripheral diffusion of a urine-permeable surface layer and on the other hand playing a role in supporting, so that a gap can be formed between the paper diaper body and the skin of a user, circulation of air is ensured, the paper diaper body is kept dry, and meanwhile, the air permeability of the paper diaper body is enhanced; the ultrafiltration membrane is covered below the liquid-tight bottom layer, the second air-permeable through holes are formed in the ultrafiltration membrane, the aperture of each second air-permeable through hole is 50nm-100nm and is matched with the first air-permeable holes, the aperture can guarantee that the liquid-tight bottom layer has air-permeable and liquid-tight performances, and compared with the common liquid-tight bottom layer, the novel liquid-permeable bottom layer has better air permeability and the same liquid-tight performance.

2. Comfort portions are symmetrically arranged on two sides of the diaper body in the width direction and comprise a middle straight line transition portion and arc portions located at two ends of the transition portion, the comfort portions are more adaptive to legs of an infant, and discomfort cannot be caused when the diaper is used.

3. The transition part is coated with flexible cotton, so that the skin on the inner side of the thigh of the infant is protected from being rubbed and injured along with movement.

4. The middle core layer is provided with a plurality of guide grooves in the area under the auxiliary absorption groove, the depth of each guide groove is 1-3 mm, and the guide grooves can guide urine flowing through the middle core layer after permeating the liquid permeability surface layer to the periphery quickly, so that the phenomenon that the urine at the same position is accumulated due to excessive urine volume to cause excessive expansion of local sap is avoided, discomfort is caused to a baby, and the whole air permeability of the paper diaper body is influenced.

5. The flow guide grooves are elongated grooves, one end of each flow guide groove is densely arranged at the central position of the middle core layer, the other end of each flow guide groove is diffused and extended in the length direction of the diaper body, and the structure of the diffused and extended flow guide grooves can bring better flow guide performance, so that urine can rapidly and uniformly cover the absorption core layer and can be rapidly and uniformly absorbed by the sap.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a cross-sectional view of the layered structure of the present invention;

FIG. 3 is a schematic front view of the present invention;

fig. 4 is a schematic view of the structure of the intermediate core layer of the present invention.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 4, in the first embodiment, a breathable infant diaper is provided, which includes a diaper body 1, where the diaper body 1 includes a liquid-permeable surface layer 11, an intermediate core layer 12, and a liquid-impermeable bottom layer 13, which are sequentially stacked, the intermediate core layer 12 is vertically wrapped by the liquid-permeable surface layer 11 and the liquid-impermeable bottom layer 13, a shuttle-shaped auxiliary absorption groove 2 is formed on the liquid-permeable surface layer 11 by hot pressing, two ends of the auxiliary absorption groove 2 extend along a length direction of the diaper body 1, the length direction of the diaper body 1 is defined as a front-back direction in use, the width direction is a left-right direction in use, and the front-back and left-right directions are based on the front-back and left-right directions of a user;

the supporting retaining walls 5 are symmetrically arranged on two sides of the auxiliary absorption groove 2, the supporting retaining walls 5 are erected on two sides of the auxiliary absorption groove 2 in a natural state of the paper diaper body 1 through rubber strings, specifically, the supporting retaining walls 5 are erected in a natural state through contraction of the rubber strings, and the supporting retaining walls are stretched and attached to the liquid-permeable surface layer 11 of the paper diaper body 1 along with the rubber strings in a stretched and tiled state of the paper diaper body 1;

a plurality of first air-permeable through holes 131 are densely formed in the liquid-impermeable bottom layer 13, the aperture of each first air-permeable through hole 131 is 1mm, an ultrafiltration membrane 14 covers the lower portion of the liquid-impermeable bottom layer 13, a second air-permeable through hole is formed in the ultrafiltration membrane 14, the aperture of each second air-permeable through hole is 50nm, each second air-permeable through hole is a tiny hole which is difficult to be perceived by naked eyes, the second air-permeable through holes are naturally formed by fabric and can only be air-permeable and liquid-impermeable, and the structure of each through hole is a known structure, so that the structure is not shown in the drawing and is not described in detail;

the two sides of the diaper body 1 in the width direction are symmetrically provided with comfortable parts 3, each comfortable part 3 comprises a transition part 32 with a straight middle line and arc parts 31 positioned at two ends of the transition part 32, and the comfortable parts 3 are coated with flexible cotton 4;

a plurality of flow guide grooves 121 are formed in the middle core layer 12 in the area right below the auxiliary absorption groove 2, the depth of each flow guide groove 121 is 1mm, each flow guide groove 121 is a strip-shaped groove, one end of each flow guide groove 121 is densely arranged in the center of the middle core layer 12, and the other end of each flow guide groove 121 extends in a diffusion manner in the length direction of the diaper body 1.

The aperture of the first air-permeable through hole 131 can be any value between 1mm and 3mm, such as 2mm or 3mm, the aperture of the second air-permeable through hole can be 50nm to 100nm, such as 80nm or 100nm, the specific value is determined by selecting the specification of the ultrafiltration membrane 14, the range of the value between 50nm and 100nm can ensure that the air-permeable bottom layer is air-permeable and liquid-impermeable, and the defect that the traditional liquid-impermeable bottom layer 13 is liquid-impermeable and air-impermeable is avoided; the depth of the flow guide grooves 121 may also be any value between 1mm and 3mm, such as 2mm or 3mm, and the number of the flow guide grooves is 10 in the above embodiment, and the number may also be changed according to the actual width and density.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a ventilative baby diaper, includes the diaper body, the diaper body is including liquid-permeable top layer, middle core layer and the liquid-tight bottom layer that stacks gradually the setting, middle core layer by liquid-permeable top layer with liquid-tight bottom carries out upper and lower cladding, its characterized in that: a shuttle-shaped auxiliary absorption groove is formed on the liquid-permeable surface layer in a hot pressing manner, and two ends of the auxiliary absorption groove extend along the length direction of the paper diaper body;

2. The breathable baby diaper according to claim 1, characterized in that: comfortable portions are symmetrically arranged on two sides of the diaper body in the width direction and comprise a middle straight transition portion and arc portions located at two ends of the transition portion.

3. The breathable baby diaper according to claim 2, characterized in that: the comfort portion is covered with flexible cotton.

4. A breathable baby diaper according to any one of claims 1-3, characterized in that: and a plurality of flow guide grooves are arranged in the area, right below the auxiliary absorption grooves, on the middle core layer, and the depth of each flow guide groove is 1-3 mm.

5. The breathable baby diaper according to claim 4, characterized in that: the flow guide grooves are strip-shaped grooves, one end of each flow guide groove is densely arranged at the central position of the middle core layer, and the other end of each flow guide groove is extended in a diffusion mode towards the length direction of the paper diaper body.