CN210932247U - Paper diaper with flow guiding and moisture insulating functions - Google Patents
Paper diaper with flow guiding and moisture insulating functions Download PDFInfo
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- CN210932247U CN210932247U CN201920940658.9U CN201920940658U CN210932247U CN 210932247 U CN210932247 U CN 210932247U CN 201920940658 U CN201920940658 U CN 201920940658U CN 210932247 U CN210932247 U CN 210932247U
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Abstract
The utility model relates to a panty-shape diapers technical field especially relates to a wet panty-shape diapers of water conservancy diversion. The device comprises a diffusion layer, a moisture barrier layer and an absorption layer from top to bottom; the diffusion layer comprises an upper layer of polyurethane sponge and a lower layer of polyurethane sponge, a plurality of inclined pore channels are arranged in the upper layer of polyurethane sponge along the circumference, the lower layer of polyurethane sponge is overlapped in multiple layers, and longitudinal pore channels and transverse pore channels are arranged in the lower layer of polyurethane sponge; the beneficial effects of the utility model reside in that: the unidirectional liquid guide film in the moisture-proof layer can prevent liquid from back-permeating; the non-woven fabric can play a role in temporarily storing liquid; the hyperbolic grooves on the surface of the non-woven fabric can further diffuse liquid; the conical protrusions on the surface of the non-woven fabric can further prevent liquid from seeping back; the upper polyurethane sponge can disperse liquid to the surface of the lower polyurethane sponge in advance, so that the liquid can be fully diffused in the lower polyurethane sponge.
Description
Technical Field
The utility model relates to a panty-shape diapers technical field especially relates to a wet panty-shape diapers of water conservancy diversion.
Background
The diversion layer in the paper diaper is a layer of special non-woven material positioned between the surface layer and the absorption core body, and has the functions of enabling the paper diaper to quickly, effectively and uniformly absorb liquid, avoiding the phenomenon of blockage caused by overlarge local absorption of SAP in the past and reducing the rewet volume of the paper diaper.
At present, the diversion layer is generally made of non-woven materials such as hot air, spun bond, hot rolling and the like, wherein the hot air non-woven material is widely applied because the hot air non-woven material has certain thickness and filling power, can temporarily store more than 10 times of liquid of the self-mass and has excellent anti-rewet performance although the price is slightly high.
The research on the flow guiding layer by the companies of foreign Kimberly, Baojie, Uinijia and the like is early, and in the patent of US5665082, the flow guiding layer is cellulose formed by cellulose through air-laying and chemical bonding processing; in US6479415B1, there is a composite flow guide layer, the upper layer consisting of chemically bonded synthetic fibers and the lower layer consisting of chemically bonded or thermally bonded fibers; US7204907B2 relates to a three-dimensional apertured nonwoven material which improves the permeability, the rewet and the flow conductivity of the absorbent material. The japanese yuenkia company combines a typical thermal bonding nonwoven fabric with thermoplastic monofilaments arranged in a straight parallel line (closely spaced, with only a slight gap) along the length thereof, and makes the filaments combined on the fabric form wavy peaks and valleys at a distance corresponding to the vertical direction in the length direction.
However, the flow guide layer with low price used in the existing paper diaper is often poor in flow guide effect, liquid cannot be well diffused in the flow guide layer, so that liquid diffusion mainly occurs in the core layer, the local liquid absorption amount of the core layer is too large to form gel blockage, the difficulty of liquid infiltration for the second time and the third time is increased, and large back infiltration amount is caused; the flow guide layer with excellent quality has high price generally because of high raw material price and complex manufacturing process.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provides a paper diaper with low price and good diversion and moisture insulation effects.
In order to solve the technical problem, the utility model discloses a technical scheme be: a flow-guiding moisture-proof paper diaper comprises a diffusion layer, a moisture-proof layer and an absorption layer from top to bottom;
the diffusion layer comprises an upper layer of polyurethane sponge and a lower layer of polyurethane sponge, a plurality of inclined pore channels are arranged in the upper layer of polyurethane sponge along the circumference, the lower layer of polyurethane sponge is overlapped in multiple layers, and longitudinal pore channels and transverse pore channels are arranged in the lower layer of polyurethane sponge;
the moisture-proof layer comprises a non-woven fabric and two unidirectional liquid guide films, a plurality of hyperbolic grooves are formed in the upper surface of the non-woven fabric, a plurality of conical protrusions are further formed in the upper surface of the non-woven fabric, and the two unidirectional liquid guide films are respectively arranged on the upper surface and the lower surface of the non-woven fabric;
the absorbing layer includes top layer non-woven fabrics, polymer water absorbent resin and bottom non-woven fabrics from top to bottom, bottom non-woven fabrics surface interval is equipped with not glue coating district and glue coating district, polymer water absorbent resin sets up in the glue coating district.
The beneficial effects of the utility model reside in that: the unidirectional liquid guide film in the moisture-proof layer can prevent liquid from back-permeating; the non-woven fabric can play a role in temporarily storing liquid; the hyperbolic grooves on the surface of the non-woven fabric can further diffuse liquid; the conical protrusions on the surface of the non-woven fabric can further prevent liquid from seeping back; the upper layer polyurethane sponge can pre-disperse liquid to the surface of the lower layer polyurethane sponge, so that the liquid can be fully dispersed in the lower layer polyurethane sponge; the lower polyurethane sea interior is provided with longitudinal and transverse pore channels, so that liquid can permeate downwards and diffuse at the same time, and the structure is simple and the cost is low; the lower layer polyurethane sea is not hydrophilic and has good permeability; the macromolecule water-absorbing resin in the absorption layer is arranged at intervals and in the gluing area, so that the area of the macromolecule water-absorbing resin and the liquid is increased.
Drawings
FIG. 1 is a schematic structural view of a diaper according to an embodiment of the present invention;
FIG. 2 is a schematic view of the surface structure of an upper layer polyurethane sponge according to an embodiment of the present invention;
FIG. 3 is a schematic view of a surface structure of a nonwoven fabric according to an embodiment of the present invention;
description of reference numerals: 1. an upper layer of polyurethane sponge; 101. inclining the duct; 2. a lower layer of polyurethane sponge; 3. non-woven fabrics; 301. a groove; 302. a protrusion; 4. a mono-directional liquid guide film; 5. a top layer of non-woven fabric; 6. a high molecular water-absorbent resin; 7. a bottom layer of non-woven fabric.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The utility model discloses the most crucial design lies in: the diffusion layer can quickly diffuse and disperse liquid, and avoid gel blockage caused by overlarge local liquid absorption amount; the moisture barrier layer prevents liquid seeping down into the absorption layer from seeping back to the diffusion layer.
Referring to fig. 1 to 3, a flow-guiding moisture-proof paper diaper comprises, from top to bottom, a diffusion layer, a moisture-proof layer and an absorption layer;
the diffusion layer comprises an upper layer of polyurethane sponge 1 and a lower layer of polyurethane sponge 2, a plurality of inclined pore channels 101 are arranged in the upper layer of polyurethane sponge 1 along the circumference, the lower layer of polyurethane sponge 2 is overlapped to form a plurality of layers, and longitudinal pore channels and transverse pore channels are arranged in the lower layer of polyurethane sponge 2;
the moisture-proof layer comprises a non-woven fabric 3 and a one-way liquid guide film 4, a plurality of hyperbolic grooves 301 are formed in the upper surface of the non-woven fabric, a plurality of conical protrusions 302 are further formed in the upper surface of the non-woven fabric 3, the number of the one-way liquid guide films 4 is two, and the two one-way liquid guide films 4 are respectively arranged on the upper surface and the lower surface of the non-woven fabric 3;
the absorbed layer includes top layer non-woven fabrics 5, polymer water absorbent resin 6 and bottom non-woven fabrics 7 from top to bottom, bottom non-woven fabrics 7 surface interval is equipped with not glue coating district and glue coating district, polymer water absorbent resin 6 sets up in the glue coating district.
From the above description, the working process of the present invention is: liquid falls on the diffusion layer and dispersedly flows into the lower polyurethane sponge 2 along the inclined pore channels 101 in the upper polyurethane sponge 1, so that the phenomenon that the liquid infiltrates and diffuses at the same position of the lower polyurethane sponge 2 to cause that the pore channels in the lower polyurethane sponge 2 are soaked and damaged by the liquid is avoided, the longitudinal pore channels in the lower polyurethane sponge 2 play a role in guiding the flow, the liquid flows downwards along the longitudinal pore channels, the transverse pore channels play a role in diffusion, when the liquid flowing down along the longitudinal pore channels flows to the transverse pore channels, the liquid flows to other directions along the transverse pore channels to avoid the liquid from gathering at the same position, after the liquid flows out of the diffusion layer, the liquid flows to the non-woven fabric 3 through the one-way liquid guiding film 4 on the upper layer of the moisture-separating layer, the hyperbolic grooves on the surface of the non-woven fabric 3 can play a role in further diffusing the liquid, and the liquid flows to the lower absorption layer through the one-way liquid guiding film 4, owing to there is one-way liquid guide membrane 4, consequently, liquid infiltration speed can be slightly slow a little, when the volume of same time liquid infiltration is great, non-woven fabrics 3 can play the effect of temporary storage liquid, and the circular cone shape arch 302 on non-woven fabrics 3 surface makes and exists the space between non-woven fabrics 3 upper surface and the one-way liquid guide membrane 4, can prevent that the liquid of storing in the non-woven fabrics 3 from rewetting, 6 intervals of polymer water-absorbing resin set up in the rubber coating district in the absorption layer, can be absorbed by polymer water-absorbing resin 6 all around after the liquid infiltration does not the rubber coating district.
From the above description, the beneficial effects of the present invention are: the unidirectional liquid guide film in the moisture-proof layer can prevent liquid from back-permeating; the non-woven fabric can play a role in temporarily storing liquid; the hyperbolic grooves on the surface of the non-woven fabric can further diffuse liquid; the conical protrusions on the surface of the non-woven fabric can further prevent liquid from seeping back; the upper layer polyurethane sponge can pre-disperse liquid to the surface of the lower layer polyurethane sponge, so that the liquid can be fully dispersed in the lower layer polyurethane sponge; the lower polyurethane sea interior is provided with longitudinal and transverse pore channels, so that liquid can permeate downwards and diffuse at the same time, and the structure is simple and the cost is low; the lower layer polyurethane sea is not hydrophilic and has good permeability; the macromolecule water-absorbing resin in the absorption layer is arranged at intervals and in the gluing area, so that the area of the macromolecule water-absorbing resin and the liquid is increased.
Further, 7 surfaces of bottom non-woven fabrics include vertically not glue coating district and horizontal not glue coating district, vertically not glue coating district distributes along absorbing layer length direction, it is crossing with vertical not glue coating district mutually perpendicular in horizontal not glue coating district, vertically not glue coating district and horizontal not glue coating district enclose into square glue coating district.
Furthermore, a bacteriostatic agent layer is arranged between the moisture-proof layer and the diffusion layer.
As can be seen from the above description, the bacteriostatic agent of the bacteriostatic layer can ensure that no bacteria can grow when the diaper is used.
Further, the thickness of the upper layer polyurethane sponge 1 is 2-4 mm.
Furthermore, the inclined angle of the inclined pore in the upper layer of polyurethane sponge 1 is 130-160 degrees.
Further, the thickness of the lower layer polyurethane sponge 2 is 2-3 mm.
From the above description, it can be seen that the thickness of the lower sponge layer is 2-3mm, which is sufficient to allow sufficient diffusion of the liquid and to save raw materials.
Further, the density of the lower layer polyurethane sponge 2 is 15-25kg/m3。
Example one
A flow-guiding moisture-proof paper diaper comprises a diffusion layer, a moisture-proof layer and an absorption layer from top to bottom;
the diffusion layer comprises an upper layer of polyurethane sponge 1 and a lower layer of polyurethane sponge 2, a plurality of inclined pore channels 101 are arranged in the upper layer of polyurethane sponge 1 along the circumference, the thickness of the upper layer of polyurethane sponge 1 is 2-4mm, the inclined angle of the inclined pore channels in the upper layer of polyurethane sponge 1 is 130-160 degrees, the lower layer of polyurethane sponge 2 is overlapped to form a plurality of layers, a longitudinal pore channel and a transverse pore channel are arranged in the lower layer of polyurethane sponge 2, the thickness of the lower layer of polyurethane sponge 2 is 2-3mm, and the density of the lower layer of polyurethane sponge 2 is 15-25kg/m3；
The moisture-proof layer comprises a non-woven fabric 3 and a one-way liquid guide film 4, a plurality of hyperbolic grooves 301 are formed in the upper surface of the non-woven fabric, a plurality of conical protrusions 302 are further formed in the upper surface of the non-woven fabric 3, the number of the one-way liquid guide films 4 is two, and the two one-way liquid guide films 4 are respectively arranged on the upper surface and the lower surface of the non-woven fabric 3;
the absorbed layer includes top layer non-woven fabrics 5, polymer water absorbent resin 6 and bottom non-woven fabrics 7 from top to bottom, bottom non-woven fabrics 7 surface is including vertically not glue coating district and horizontal not glue coating district, vertically not glue coating district distributes along absorbed layer length direction, transversely not glue coating district and vertical not glue coating district mutually perpendicular intersect, vertically not glue coating district encloses into square glue coating district with horizontal not glue coating district, polymer water absorbent resin 6 sets up in the glue coating district.
And a bacteriostatic agent layer is arranged between the moisture-proof layer and the diffusion layer.
To sum up, the beneficial effects of the utility model reside in that: the unidirectional liquid guide film in the moisture-proof layer can prevent liquid from back-permeating; the non-woven fabric can play a role in temporarily storing liquid; the hyperbolic grooves on the surface of the non-woven fabric can further diffuse liquid; the conical protrusions on the surface of the non-woven fabric can further prevent liquid from seeping back; the upper layer polyurethane sponge can pre-disperse liquid to the surface of the lower layer polyurethane sponge, so that the liquid can be fully dispersed in the lower layer polyurethane sponge; the lower polyurethane sea interior is provided with longitudinal and transverse pore channels, so that liquid can permeate downwards and diffuse at the same time, and the structure is simple and the cost is low; the lower layer polyurethane sea is not hydrophilic and has good permeability; the macromolecule water-absorbing resin in the absorption layer is arranged at intervals and in the gluing area, so that the area of the macromolecule water-absorbing resin and the liquid is increased. The bacteriostatic agent of the bacteriostatic layer can ensure that bacteria cannot grow when the paper diaper is used. When the thickness of the lower sponge layer is 2-3mm, the liquid can be sufficiently diffused, and the raw materials can be saved.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (7)
1. A flow-guiding moisture-proof paper diaper is characterized by comprising a diffusion layer, a moisture-proof layer and an absorption layer from top to bottom;
the diffusion layer comprises an upper layer of polyurethane sponge and a lower layer of polyurethane sponge, a plurality of inclined pore channels are arranged in the upper layer of polyurethane sponge along the circumference, the lower layer of polyurethane sponge is overlapped in multiple layers, and longitudinal pore channels and transverse pore channels are arranged in the lower layer of polyurethane sponge;
the moisture-proof layer comprises a non-woven fabric and two unidirectional liquid guide films, a plurality of hyperbolic grooves are formed in the upper surface of the non-woven fabric, a plurality of conical protrusions are further formed in the upper surface of the non-woven fabric, and the two unidirectional liquid guide films are respectively arranged on the upper surface and the lower surface of the non-woven fabric;
the absorbing layer includes top layer non-woven fabrics, polymer water absorbent resin and bottom non-woven fabrics from top to bottom, bottom non-woven fabrics surface interval is equipped with not glue coating district and glue coating district, polymer water absorbent resin sets up in the glue coating district.
2. The diversion moisture-proof paper diaper according to claim 1, wherein the surface of the bottom non-woven fabric comprises a longitudinal non-glue-coated area and a transverse non-glue-coated area, the longitudinal non-glue-coated area is distributed along the length direction of the absorption layer, the transverse non-glue-coated area and the longitudinal non-glue-coated area are mutually perpendicular and intersected, and the longitudinal non-glue-coated area and the transverse non-glue-coated area enclose a square glue-coated area.
3. The flow-guiding and moisture-insulating paper diaper as claimed in claim 2, wherein a bacteriostatic agent layer is arranged between the moisture-insulating layer and the diffusion layer.
4. The flow-guiding and moisture-insulating paper diaper as claimed in claim 1, wherein the thickness of the upper layer polyurethane sponge is 2-4 mm.
5. The flow-guiding and moisture-insulating paper diaper as claimed in claim 1, wherein the inclined angle of the inclined pore in the upper layer of polyurethane sponge is 130-160 degrees.
6. The flow-guiding and moisture-insulating paper diaper as claimed in claim 1, wherein the thickness of the lower layer polyurethane sponge is 2-3 mm.
7. The flow-guiding and moisture-insulating paper diaper as claimed in claim 1, wherein the density of the lower layer polyurethane sponge is 15-25kg/m3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920940658.9U CN210932247U (en) | 2019-06-21 | 2019-06-21 | Paper diaper with flow guiding and moisture insulating functions |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920940658.9U CN210932247U (en) | 2019-06-21 | 2019-06-21 | Paper diaper with flow guiding and moisture insulating functions |
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| Publication Number | Publication Date |
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| CN210932247U true CN210932247U (en) | 2020-07-07 |
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| CN201920940658.9U Active CN210932247U (en) | 2019-06-21 | 2019-06-21 | Paper diaper with flow guiding and moisture insulating functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114504436A (en) * | 2021-12-22 | 2022-05-17 | 吴芷若 | Night skin softening sanitary towel |
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- 2019-06-21 CN CN201920940658.9U patent/CN210932247U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114504436A (en) * | 2021-12-22 | 2022-05-17 | 吴芷若 | Night skin softening sanitary towel |
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