CN110279525A - It is a kind of for sanitary napkin or the guide layer of paper diaper - Google Patents
It is a kind of for sanitary napkin or the guide layer of paper diaper Download PDFInfo
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- CN110279525A CN110279525A CN201910540369.4A CN201910540369A CN110279525A CN 110279525 A CN110279525 A CN 110279525A CN 201910540369 A CN201910540369 A CN 201910540369A CN 110279525 A CN110279525 A CN 110279525A
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- Prior art keywords
- layer
- diffusivity
- guide
- sanitary napkin
- spongy
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
- A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers or nappies
- A61F13/494—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers or nappies characterised by edge leakage prevention means
- A61F13/49406—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers or nappies characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F13/53713—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction the layer having a promotional function on liquid propagation in the vertical direction
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The present invention relates to health technology fields more particularly to a kind of for sanitary napkin or the guide layer of paper diaper, including diffusion layer, diffusivity spongy layer, unidirectional liquid guide membrane, hydrophobic edge sealing；The diffusion layer circumferential direction inside is provided with several inclination ducts, and the inclination duct tilt angle is 125-165 degree, and the diffusion layer is located above diffusivity spongy layer；The diffusivity spongy layer has overlapped multilayer, and the diffusivity spongy layer is polyurethane sponge, there is longitudinal holes and lateral duct inside the polyurethane sponge；The unidirectional liquid guide membrane is set to diffusivity spongy layer bottom；The hydrophobic edge sealing is bonded in diffusivity spongy layer edge side described in multilayer by hot melt glue；The technical problems to be solved by the present invention are: providing a kind of for the structure of sanitary napkin or paper diaper is simple cheap and diffusion is excellent guide layer.
Description
Technical field
The present invention relates to health technology fields more particularly to a kind of for sanitary napkin or the guide layer of paper diaper.
Background technique
Guide layer is one layer of special non-woven material between paper diaper or sanitary napkin surface layer and absorptive core,
Effect be make paper diaper quickly, effectively, equably absorb liquid, avoid over and form obstruction because SAP local absorption amount is excessive
Phenomenon reduces the paper diaper amount of bleeding back.
Guide layer generallys use hot wind, the non-woven materials such as spunbond, hot rolling, although wherein hot wind non-woven material valence at present
Lattice are slightly higher, but because of the liquid that it can keep in certain thickness and fluffy degree 10 times of sole mass or more, and have fabulous
Anti- back permeability and be widely used.
The companies such as external Kimberly, P&G, You Nijia are more early to the research of guide layer, in US5665082 patent, guide layer
It is process by cellulose air lay and through chemical adhesion the cellulose formed；In Patent No. US6479415B1 patent
In, mention composite flowing layer, above one layer be made of chemical adhesion synthetic fibers, lower layer is fine by chemical adhesion or heat bonding
Tie up fiber composition；The non-woven material that Patent No. US7204907B2 patent is related to a kind of three-dimensional open pores can improve absorption material
Permeance property, reverse osmosis performance and the guide performance of material.Japanese You Nijia company is by typical thermal non-woven fabric and along length
The thermoplastic monofilament in direction (arrangement is close, only slightly stays gap) linearly arranged in parallel combines, and makes to be compounded on cloth
Long filament formed in the longitudinal direction with vertical direction on the comparable waveform peak valley of spacing.
However often diversion effect is bad for the cheap guide layer in existing part, liquid can not be well in guide layer
Diffusion causes liquid diffusion to occur mainly in sandwich layer, and sandwich layer part liquid absorption amount is excessive and forms gel blockage, further increases second
Difficulty that is secondary, seeping under third time liquid, causes the biggish amount of bleeding back；And superior in quality guide layer is high simultaneously due to cost of material
And manufacturing process is complicated, price is generally high.
Summary of the invention
The technical problems to be solved by the present invention are: it is low to provide a kind of simple price of the structure for sanitary napkin or paper diaper
Honest and clean and excellent diffusion guide layer.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: a kind of for sanitary napkin or paper diaper
Guide layer, including diffusion layer, diffusivity spongy layer, unidirectional liquid guide membrane and hydrophobic edge sealing；
The diffusion layer is located at the top of guide layer；The diffusion layer circumferential direction inside is provided with several inclination ducts, institute
Stating inclination duct tilt angle is 125-165 degree；
The diffusivity spongy layer is located at diffusion layer lower surface；The diffusivity spongy layer overlaps multilayer, the expansion
The material for dissipating property spongy layer is polyurethane sponge, there is longitudinal holes and lateral duct, the expansion inside the diffusivity spongy layer
Dissipating at the top of property spongy layer has wavy fold；
Unidirectional liquid guide membrane is arranged in the lower section of every layer of diffusivity spongy layer；
The hydrophobic edge sealing is bonded in the side of the diffusion layer, diffusivity spongy layer and unidirectional liquid guide membrane by hot melt glue
Edge side.
The above-mentioned production method for sanitary napkin or the guide layer of paper diaper, includes the following steps:
Step 1 weaves diffusion layer using polyurethane fiber；
Step 2 processes inclination duct using syringe needle on diffusion layer；
Step 3, cutting polyurethane sponge obtain diffusivity spongy layer；
Step 4 successively completes diffusion layer, diffusivity spongy layer, unidirectional liquid guide membrane from top to bottom, and passes through roll squeezer pressure
Tightly；
Hydrophobic edge sealing is bonded in the guide layer side laid by step 5 by hot melt glue, and guide layer completes.
The beneficial effects of the present invention are: liquid can be dispersed in advance diffusivity sponge layer surface by diffusion layer, be allowed to
The advantage of diffusivity spongy layer can be given full play to afterwards；Wavy fold can be such that liquid further shunts and in diffusivity sponge
Layer surface is uniformly lower to seep；Diffusivity sponge is internally provided with vertical and horizontal duct, realizes and expands while capable of making to seep under liquid
It dissipates, and simple in structure and low in cost；Polyurethane sponge is not hydrophilic to have good permeability；Unidirectional liquid guide membrane can be avoided down
The liquid of infiltration is bled back；
It is knitted to form diffusion layer using polyurethane fiber, makes diffusion layer itself that there is hydrophobicity, diffusion layer made of braiding
Itself has braided mesh, can make to seep under partially liq without depositing；Diffusion layer, diffusivity spongy layer, unidirectional liquid guide membrane
It is compacted rear very thin thickness；
Hydrophobic edge sealing can prevent liquid from flowing to outside from guide layer side, lead to side leakage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the specific embodiment of the invention；
Fig. 2 is the diffusion schematic diagram of a layer structure of the specific embodiment of the invention；
Fig. 3 is the hydrophobic surface schematic diagram of a layer structure of the specific embodiment of the invention；
Label declaration: 1, diffusion layer；101, duct is tilted；2, diffusivity spongy layer；3, unidirectional liquid guide membrane；4, hydrophobic envelope
Side；5, hydrophobic surface layer；501, groove.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached
Figure is explained.
The most critical design of the present invention is: 1, liquid is able to carry out secondary diffusion；2, the lateral duct energy in spongy layer
Spread liquid all directions in sponge uniformly；3, with excellent reverse osmosis.
Please refer to Fig. 1 to 3, it is a kind of for sanitary napkin or the guide layer of paper diaper, including diffusion layer 1, diffusivity spongy layer
2, unidirectional liquid guide membrane 3 and hydrophobic edge sealing 4；
The diffusion layer 1 is located at the top of guide layer；1 circumferential direction inside of diffusion layer is provided with several inclination ducts
101；
The diffusivity spongy layer 2 is located at 1 lower surface of diffusion layer；The diffusivity spongy layer 2 overlaps multilayer, described
The material of diffusivity spongy layer 2 is polyurethane sponge, there is longitudinal holes and lateral duct, institute inside the diffusivity spongy layer 2
Stating has wavy fold at the top of diffusivity spongy layer 2；
Unidirectional liquid guide membrane 3 is arranged in the lower section of every layer of diffusivity spongy layer 2；
The hydrophobic edge sealing 4 is bonded in the diffusion layer 1, diffusivity spongy layer 2 and unidirectional liquid guide membrane 3 by hot melt glue
Edge side.
As can be seen from the above description, the course of work of the invention are as follows: liquid is fallen on diffusion layer 1, can inclining in diffusion layer
The dispersion of inclined channel 101 is wandered to diffusivity spongy layer 2, and avoiding liquid from seeping diffusion under 2 same place of diffusivity spongy layer causes
2 internal gutter of diffusivity spongy layer is impregnated by liquid to be damaged, and the wavy fold at 2 top of diffusivity spongy layer can be by the liquid of lower infiltration
Body is further shunted along wave direction, allows the liquid to uniformly seep down on the surface of diffusivity spongy layer 2, diffusivity spongy layer 2
Internal longitudinal holes play the role of water conservancy diversion, and liquid can duct be to flowing down along longitudinal direction, and lateral duct then plays diffusion
Effect can flow to other directions along lateral duct, avoid when the liquid liquid that duct is wandered along longitudinal direction flow to transverse holes road
Liquid accumulation is in the same position, after liquid flow goes out spongy layer, can pass through unidirectional liquid guide membrane stream 3 to lower section Water-absorption core body, and
And unidirectional liquid guide membrane 3 can prevent lower section liquid from bleeding back, hydrophobic edge sealing 4 can be avoided liquid and flow along 2 side of diffusivity spongy layer
To outside.
As can be seen from the above description, the beneficial effects of the present invention are: liquid can be dispersed in advance diffusivity by diffusion layer
Sponge layer surface, the advantage for being allowed to rear diffusivity spongy layer can be given full play to；Wavy fold can be such that liquid further divides
It flows and is uniformly seeped down in diffusivity sponge layer surface；Diffusivity sponge is internally provided with vertical and horizontal duct, can make liquid
Diffusion, and simple in structure and low in cost are realized while lower infiltration；Polyurethane sponge is not hydrophilic to have good permeability；Unidirectionally
The liquid that drain film can be avoided lower infiltration is bled back.
It further, further include hydrophobic surface layer 5, hydrophobic 5 surface of surface layer is provided with several hyperbola grooves 501,
The hydrophobic surface layer 5 is located at 1 upper surface of diffusion layer.
As can be seen from the above description, the hyperbola groove in hydrophobic surface layer further can be such that liquid disperses.
Further, 5 surface of hydrophobic surface layer is additionally provided with cone-shaped bulge.
As can be seen from the above description, cone-shaped bulge can make hydrophobic surface layer and other structures form certain interval, it is convenient for liquid
Body flowing.
Further, 5 bottom surface of hydrophobic surface layer is equipped with antibacterial layer.
As can be seen from the above description, bacteriostatic agent can guarantee that guide layer will not be bred carefully in the environment use of opposing seal
Bacterium.
Further, 5 lower surface of hydrophobic surface layer is provided with unidirectional liquid guide membrane 3.
As can be seen from the above description, the unidirectional liquid guide membrane of hydrophobic surface layer bottom, which can be avoided liquid, excessively bleeds back to hydrophobic surface
Layer.
Further, the diffusivity spongy layer 2 is with a thickness of 2-5mm.
Further, 2 thickness of diffusivity spongy layer is specially 3mm.
Further, 2 density of diffusivity spongy layer is 15-25kg/m3。
Further, 101 tilt angle of inclination duct is 125-165 degree.
Further, the tilt angle in the inclination duct 101 is specially 135 degree.
Embodiment one
It is a kind of for sanitary napkin or the guide layer of paper diaper, including diffusion layer 1, diffusivity spongy layer 2, unidirectional liquid guide membrane 3
With hydrophobic edge sealing 4；The diffusion layer 1 is located at the top of guide layer；1 circumferential direction inside of diffusion layer is provided with several angling holes
Road 101；The diffusivity spongy layer 2 is located at 1 lower surface of diffusion layer；The diffusivity spongy layer 2 overlaps multilayer, the expansion
The material for dissipating property spongy layer 2 is polyurethane sponge, there is longitudinal holes and lateral duct inside the diffusivity spongy layer 2, described
There is wavy fold at the top of diffusivity spongy layer 2；Unidirectional liquid guide membrane 3 is arranged in the lower section of every layer of diffusivity spongy layer 2；It is described
Hydrophobic edge sealing 4 is bonded in the edge side of the diffusion layer 1, diffusivity spongy layer 2 and unidirectional liquid guide membrane 3 by hot melt glue.Institute
Stating 2 density of diffusivity spongy layer is 15-25kg/m3.2 thickness of diffusivity spongy layer is specially 3mm.The inclination duct
101 tilt angle is specially 135 degree.
The above-mentioned production method for sanitary napkin or the guide layer of paper diaper, includes the following steps:
A, diffusion layer is woven using polyurethane fiber；
B, using the syringe needle after heating, oblique bundle hole melts polyurethane fiber on diffusion layer, processes inclination duct,
And drying makes the solidification of inclination duct be formed；
C, cutting polyurethane sponge obtains diffusivity spongy layer, and is cut at the top of diffusivity spongy layer with same intervals
Groove forms wavy fold；
D, diffusion layer, diffusivity spongy layer, unidirectional liquid guide membrane are successively completed from top to bottom, are bonded using hot melt glue,
And it is compressed by roll squeezer；
E, hydrophobic edge sealing is bonded in the guide layer side laid by hot melt glue, guide layer completes.
Embodiment two
It is a kind of for sanitary napkin or the guide layer of paper diaper, including diffusion layer 1, diffusivity spongy layer 2, unidirectional liquid guide membrane 3
With hydrophobic edge sealing 4；The diffusion layer 1 is located at the top of guide layer；1 circumferential direction inside of diffusion layer is provided with several angling holes
Road 101；The diffusivity spongy layer 2 is located at 1 lower surface of diffusion layer；The diffusivity spongy layer 2 overlaps multilayer, the expansion
The material for dissipating property spongy layer 2 is polyurethane sponge, there is longitudinal holes and lateral duct inside the diffusivity spongy layer 2, described
There is wavy fold at the top of diffusivity spongy layer 2；Unidirectional liquid guide membrane 3 is arranged in the lower section of every layer of diffusivity spongy layer 2；It is described
Hydrophobic edge sealing 4 is bonded in the edge side of the diffusion layer 1, diffusivity spongy layer 2 and unidirectional liquid guide membrane 3 by hot melt glue.Institute
Stating 2 density of diffusivity spongy layer is 15-25kg/m3.2 thickness of diffusivity spongy layer is specially 3mm.The inclination duct
101 tilt angle is specially 135 degree.It further include hydrophobic surface layer 5, hydrophobic 5 surface of surface layer is provided with several hyperbolas
Groove 501, the hydrophobic surface layer 5 are located at 1 upper surface of diffusion layer.5 surface of hydrophobic surface layer is additionally provided with cone-shaped bulge.Institute
Hydrophobic 5 lower surface of surface layer is stated equipped with antibacterial layer.5 lower surface of hydrophobic surface layer is provided with unidirectional liquid guide membrane 3.
The above-mentioned production method for sanitary napkin or the guide layer of paper diaper, includes the following steps:
A, diffusion layer is woven using polyurethane fiber；
B, using the syringe needle after heating, oblique bundle hole melts polyurethane fiber on diffusion layer, processes inclination duct,
And drying makes the solidification of inclination duct be formed；
C, cutting polyurethane sponge obtains diffusivity spongy layer, and is cut at the top of diffusivity spongy layer with same intervals
Groove forms wavy fold；
D, hydrophobic surface layer, unidirectional liquid guide membrane, diffusion layer, diffusivity spongy layer, unidirectional liquid guide membrane are successively spread from top to bottom
It is good, it is bonded using hot melt glue, and compressed by roll squeezer；
E, hydrophobic edge sealing is bonded in the guide layer side laid by hot melt glue, guide layer completes.
Table 1
| Lower infiltration time/s | Diffusion area/dm3 | |
| Embodiment one | 5 | 6.7 |
| Embodiment two | 6 | 8.3 |
As shown in table 1, for embodiment one and embodiment two guide layer the lower infiltration time and diffusion area comparison, comparison
10dm is used in test respectively3The embodiment one of size and the guide layer of embodiment two are tested, and lower infiltration time and expansion are tested
Dissipate area when, be all made of 500ml colored solutions and tested, by observe and record liquid flow completely out the time of guide layer with
And the maximum area dyed in diffusivity spongy layer by colored liquid in guide layer, 1 institute of table is obtained after multiple repetition test
It is showing as a result, as can be seen that lower infiltration time change is little, and diffusion area increases after increasing hydrophobic surface layer from table 1
20%, hydrophobic surface layer can preferably avoid inhaling below guide layer to liquid can be made preferably to spread apart in guide layer
Receipts core local absorption amount is excessive and forms choking phenomenon.
In conclusion the beneficial effects of the present invention are: liquid can be dispersed in advance diffusivity spongy layer by diffusion layer
Surface, the advantage for being allowed to rear diffusivity spongy layer can be given full play to；Wavy fold can make liquid further shunt and
Diffusivity sponge layer surface is uniformly lower to seep；Diffusivity sponge is internally provided with vertical and horizontal duct, can make to seep under liquid
Diffusion, and simple in structure and low in cost are realized simultaneously；Polyurethane sponge is not hydrophilic to have good permeability；Unidirectional liquid guide membrane
The liquid that can be avoided lower infiltration is bled back.Hyperbolic line groove in hydrophobic surface layer further can be such that liquid disperses.Bacteriostatic agent can be with
Guarantee that guide layer will not breed bacterium in the environment use of opposing seal.The unidirectional liquid guide membrane of hydrophobic surface layer bottom can be avoided
Liquid is excessive and bleeds back to hydrophobic surface layer.It is knitted to form diffusion layer using polyurethane fiber, makes diffusion layer itself that there is hydrophobicity,
Diffusion layer itself made of braiding has braided mesh, can make to seep under partially liq without depositing, and is processed by syringe needle
Oblique duct out can play the role of guiding liquid flow direction；After diffusion layer, diffusivity spongy layer, unidirectional liquid guide membrane are compacted
Very thin thickness；Hydrophobic edge sealing can prevent liquid from flowing to outside from guide layer side, lead to side leakage.After being bonded using glue, respectively
Layer dispersion not easy to fall off.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include
In scope of patent protection of the invention.
Claims (10)
1. a kind of for sanitary napkin or the guide layer of paper diaper, which is characterized in that including diffusion layer, diffusivity spongy layer, unidirectional
Drain film and hydrophobic edge sealing；
The diffusion layer is located at the top of guide layer；The diffusion layer circumferential direction inside is provided with several inclination ducts；
The diffusivity spongy layer is located at diffusion layer lower surface；The diffusivity spongy layer overlaps multilayer, the diffusivity
The material of spongy layer is polyurethane sponge, there is longitudinal holes and lateral duct, the diffusivity inside the diffusivity spongy layer
There is wavy fold at the top of spongy layer；
Unidirectional liquid guide membrane is arranged in the lower section of every layer of diffusivity spongy layer；
The hydrophobic edge sealing is bonded in the edge of the diffusion layer, diffusivity spongy layer and unidirectional liquid guide membrane by hot melt glue
Side.
2. according to claim 1 for sanitary napkin or the guide layer of paper diaper, which is characterized in that it further include hydrophobic surface layer,
The hydrophobic facing surface is provided with several hyperbola grooves, and the hydrophobic surface layer is located at diffusion layer upper surface.
3. according to claim 2 for sanitary napkin or the guide layer of paper diaper, which is characterized in that the hydrophobic facing surface
It is additionally provided with cone-shaped bulge.
4. according to claim 2 for sanitary napkin or the guide layer of paper diaper, which is characterized in that the hydrophobic surface layer following table
Face is equipped with antibacterial oxidant layer.
5. according to claim 2 for sanitary napkin or the guide layer of paper diaper, which is characterized in that the hydrophobic surface layer following table
Face is provided with unidirectional liquid guide membrane.
6. according to claim 1 for sanitary napkin or the guide layer of paper diaper, which is characterized in that the diffusivity spongy layer
With a thickness of 2-5mm.
7. according to claim 6 for sanitary napkin or the guide layer of paper diaper, which is characterized in that the diffusivity spongy layer
With a thickness of 3mm.
8. according to claim 1 for sanitary napkin or the guide layer of paper diaper, which is characterized in that the diffusivity spongy layer
Density is 15-25kg/m3。
9. according to claim 1 for sanitary napkin or the guide layer of paper diaper, which is characterized in that the inclination duct inclination
Angle is 125-165 degree.
10. according to claim 9 for sanitary napkin or the guide layer of paper diaper, which is characterized in that the inclination duct
Tilt angle is 135 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910540369.4A CN110279525A (en) | 2019-06-21 | 2019-06-21 | It is a kind of for sanitary napkin or the guide layer of paper diaper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910540369.4A CN110279525A (en) | 2019-06-21 | 2019-06-21 | It is a kind of for sanitary napkin or the guide layer of paper diaper |
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| Publication Number | Publication Date |
|---|---|
| CN110279525A true CN110279525A (en) | 2019-09-27 |
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ID=68005130
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910540369.4A Pending CN110279525A (en) | 2019-06-21 | 2019-06-21 | It is a kind of for sanitary napkin or the guide layer of paper diaper |
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