CN103565588B - Absorbent item - Google Patents
Absorbent item Download PDFInfo
- Publication number
- CN103565588B CN103565588B CN201210257260.8A CN201210257260A CN103565588B CN 103565588 B CN103565588 B CN 103565588B CN 201210257260 A CN201210257260 A CN 201210257260A CN 103565588 B CN103565588 B CN 103565588B
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- CN
- China
- Prior art keywords
- main part
- region
- absorbent item
- guiding region
- diversion trench
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
- A61F13/51108—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections the top sheet having corrugations or embossments having one axis relatively longer than the other axis, e.g. forming channels or grooves in a longitudinal 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
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
- A61F2013/51338—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability having improved touch or feeling, e.g. smooth film
-
- 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
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
- A61F2013/51355—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability for improving fluid flow
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The present invention relates to a kind of absorbent items, it has a main part, the main part has central region, diversion trench is formed with towards recessed inside main part in the appearance of the main part, the diversion trench includes the extending direction positioned at the first guiding region of central region of the main part and along first guiding region, formed two the second guiding regions are each extended over by the both ends of first guiding region, wherein in second guiding region, at least one the second guiding region is greater than first guiding region depth recessed to main part inside along the main part surface to the recessed depth in main part inside along the main part surface.Compared with prior art, the absorbent item provided by the present invention can be such that liquid quickly spreads to the both ends of absorbent item, to guarantee that the central region of absorbent item has the drying regime of long period.
Description
Technical field
The present invention relates to a kind of absorbent items.
Background technique
For disposable absorbent articles such as nappies, need liquid cracking can be absorbed, to prevent skin and liquid
It contacts for a long time and causes the skin diseases such as dermatitis.
General nappy is usually formed by permeable top layer, absorbed layer and liquid-impermeable bottom layers, and liquid is from transparent liquid
Property top layer infiltration after attract deposits in absorbed layer, it is further that the liquid-impermeable bottom is used for the liquid that prevents from attracting deposits in absorbed layer
Leakage.In order to improve the liquid absorption of disposable absorbent article, common practice includes: that the strong material of differential permeability comes
Permeable top layer is made, to shorten liquid as far as possible in the residence time of permeable top layer；Using with high-efficiency water-absorbing performance
Super absorbent polymer (Super Absorbent Polymer, SAP) and the longer Time of Fluff Slurry of fibre length come prepare absorb
Layer, to shorten the time that liquid enters the absorbed layer.
All there are following defects for the above-mentioned mode for being usually used in accelerating absorbent item: on the one hand, excellent using absorbent properties
Good material, the cost that will lead to absorbent item significantly rise, and are unfavorable for the market competition of product；On the other hand, no matter use
Which kind of material, under usual condition, the disposable absorbent articles such as nappy in use, due to the intrinsic wearing of absorbent item
Mode is usually located at lower position, therefore in the effect of gravity relative to the both ends of absorbent item in the middle part of absorbent item
Under, liquid can all concentrate on the middle part of absorbent item after penetrating into absorbent item, and it is less spread to absorbent item both ends,
In this way, will result in the absorbability at absorbent item both ends cannot make full use of, waste is formed, meanwhile, liquid is in absorbent item
Central region can not effectively spread, so that the central region of absorbent item is remained moister state, so not only
Wearer can be made to generate uncomfortable, but also be likely to result in wearer and the skin diseases such as dermatitis occur.
Summary of the invention
The absorbent item of the above problem can be overcome actually necessary in view of this, providing one kind.
A kind of absorbent item has a main part, and the main part has central region, in the appearance of the main part
Recessed inside agent-oriention portion to be formed with diversion trench, the diversion trench includes the first water conservancy diversion of central region positioned at the main part
Area and extending direction along first guiding region, each extend over formed two second by the both ends of first guiding region
Guiding region, wherein in second guiding region, at least one the second guiding region along the main part surface to main part
Internal recessed depth is greater than first guiding region depth recessed to main part inside along the main part surface.
Compared with prior art, the absorbent item provided by the present invention, defines one on the absorbent item
A central region.First guiding region, while the extending direction along first guiding region are set in the central region, by institute
The both ends for stating the first guiding region are each extended over to form two the second guiding regions, thus on the absorbent item formed one by
First second guiding region, the first guiding region are sequentially communicated again to second the second guiding region and the diversion trench that is formed, so
Setting makes the depth of at least one guiding region in second guiding region greater than the depth of first guiding region afterwards.By upper
Structure design is stated, so that liquid, behind the surface for falling on the absorbent item, liquid can be fast under the guidance of the diversion trench
Speed is spread to two ends of the absorbent item or two sides, on the one hand, the absorption can be made to use as far as possible
Each region in the absorbed layer of product is adequately applied, and on the other hand, liquid can also be avoided to concentrate on absorbent item
Central region and cause the central region of absorbent item to remain moister state and wearer is caused to generate uncomfortable lack
It falls into.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of absorbent item provided by embodiment of the present invention.
Fig. 2 is the sectional view along II-II line shown in FIG. 1.
Main element symbol description
| Absorbent item | 100 |
| Main part | 10 |
| Central region | 101 |
| Diversion trench | 11 |
| First guiding region | 111 |
| Second guiding region | 112 |
| Permeable top layer | 20 |
| Outer surface | 21 |
| Absorbed layer | 30 |
| Opaque liquid bottom | 40 |
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Referring to Figure 1 and shown in Fig. 2, absorbent item 100 provided by embodiment of the present invention comprising main part 10,
The appearance of the main part 10 is equipped with diversion trench 11 towards the main part inner-concave.
In the present embodiment, the main part 10 includes permeable top layer 20, absorbed layer 30 and opaque liquid bottom
40, the permeable top layer 20, absorbed layer 30 and opaque liquid bottom 40 stack gradually to form the main part 10.
The permeable top layer 20 has outer surface 21 exposed to the outside, and the outer surface 21 constitutes the main part 10
An outer surface, the diversion trench 11 is formed on the outer surface 21.
It should be understood that due in the absorbent item 100 in use, the permeable top layer 20 need with user's skin
Skin directly contacts, therefore the material of the permeable top layer 20 preferably uses transparent liquid functional and has soft smooth
The natural flexible fiber such as the material of sense of touch, such as cotton fiber.
The diversion trench 11 is formed in the outer surface 21 of the permeable top layer 20, is used for falling in the liquid permeability top
The liquid of layer 20 guides, to help liquid to spread to the periphery of the absorbent item 100.The absorbent item 100 has
One central region 101 and along the absorbent item 100 length direction two opposed ends and along the absorbent item 100
Width direction two relative sides.
In the present embodiment, the diversion trench 11 includes the first guiding region 111, and first guiding region 111 is located substantially at institute
State the central region 101 of absorbent item 100 and its extending direction with the absorbent item 100 length direction.
Extending direction along first guiding region 111, the both ends of first guiding region 111 are used to the absorption respectively
Two opposed ends of product 100 extend, to form two the second guiding regions 112 on the outer surface 21, that is to say, that institute
The middle part that the first guiding region 111 is located substantially at the absorbent item 100 is stated, second guiding region 112 is by the first guiding region 111
The ends of both ends towards the absorbent item 100 extend to form.First guiding region 111 and two second lead
Stream area 112 constitutes the diversion trench 11 on the outer surface 21 jointly, in described two second guiding regions 112, at least
The depth of one the second guiding region, 112 guiding region is greater than the depth of first guiding region 111.I.e. described two second guiding regions
Second guiding region of at least one in 112 112 is from the outer surface 21 of the main part 10 to the depth of 10 inner recess of main part
Greater than first guiding region 111 from the outer surface 21 of the main part 10 to the depth of 10 inner recess of main part.Preferably,
In the present embodiment, the depth of described two second guiding regions 112 is all larger than the depth of first guiding region 111.
It is appreciated that can also be along the absorption positioned at the first guiding region 111 of the central region of the absorbent item 100
The width direction of articles 100 extends.When first guiding region 111 extends along the width direction of the absorbent item 100
When, then the both ends of first guiding region 111 are along the both ends of 100 width direction of absorbent item below.Second guiding region
112 are extended by the both ends of the first guiding region 111 towards two relative sides of the absorbent item 100 in the direction of the width, from
And the diversion trench 11 extended along the width direction of the absorbent item 100 is formed on the outer surface 21 of the absorbent item 100.
In the present invention, since the diversion trench 11 is to be inwardly compressed recessed and formed by fiber, in the master
In body portion 10, the fiber layer thickness in the region where the diversion trench 11 is less than the fiber in other regions of the main part 10
Thickness degree, that is to say, that the fibre density of 11 region of diversion trench is greater than the fibre in other regions of the main part 10
Density is tieed up, meanwhile, in the diversion trench 11, the bigger region of water conservancy diversion groove depth, fibre density is bigger.In this embodiment party
In formula, since the depth of described two second guiding regions 112 is all larger than the depth of first guiding region 111, described
In region where diversion trench 11, the fibre density in region corresponding to second guiding region 112 is greater than first water conservancy diversion
The fibre density in region corresponding to area 111.
It is well known that the porous object such as paper, textile is capillary phenomenon the main reason for capable of absorbing water.It is so-called
Capillary phenomenon refers to liquid in thin tube-like object, overcomes centrifugal force due to the surface tension of liquid and the difference of adhesive force
The phenomenon that rising along tubule.Capillary phenomenon follows following formula:
,
In above formula, h indicates the height that liquid rises, and γ indicates surface tension, and θ indicates that contact angle, ρ indicate fluid density, g
Indicate that acceleration of gravity, r indicate tubule radius, in the same environment, surface tension γ, contact angle θ, the liquid in above formula are close
Degree ρ and gravity acceleration g can be regarded as constant, that is to say, that the height that liquid rises depends on the radius of tubule, tubule
Radius is smaller, and liquid rises higher.
When the principle of above-mentioned capillary phenomenon to be applied in absorbent item, tubule radius r is the absorbent item
Pore size, the bigger region of fibre density, hole will be smaller, is also more easy to happen capillary phenomenon, that is to say, that fine
The bigger region of density is tieed up, the speed of liquid diffusion is faster, and then its water absorbing properties is stronger.
In the main part 10 of the absorbent item 100 provided by present embodiment, as corresponding to the diversion trench 11
The fibre density in region is greater than the fibre density in other regions of the main part 10, meanwhile, corresponding to the diversion trench 11
Region in, the density in region corresponding to second guiding region 112 is greater than region corresponding to first guiding region 111
Fibre density, therefore, in the absorbent item 100, the liquid diffusion velocity in region corresponding with the diversion trench 11 compared with
Fastly, water absorbing properties are stronger, meanwhile, in region corresponding with the diversion trench 11, area corresponding with second guiding region 112
The liquid diffusion velocity in domain is very fast, water absorbing capacity is stronger.After liquid falls in the middle part of the absorbent item 100, the water conservancy diversion
The diffusion of region liquid locating for slot 11 is very fast, therefore a large amount of liquid can flow to region locating for the diversion trench 11, meanwhile, by
In the region locating for the diversion trench 11, the fibre density in region corresponding with second guiding region 112 is greater than and institute
State the fibre density in the corresponding region in the first guiding region 111, the principle followed according to capillary phenomenon, first guiding region 111
Interior liquid can be readily to regional diffusion corresponding with second guiding region 112.In this way, in the absorbent item
In 100 use process, most of liquid at 100 middle part of absorbent item is fallen under the guidance of the diversion trench 11, is prolonged
The both ends or two sides for being diffused into the absorbent item 100 are stretched, to not only make 100 both ends of absorbent item or two
The absorbed layer of side is fully utilized, but also the central region for being able to extend the absorbent item 100 keeps drying
Time, the middle part for overcoming absorbent item in the prior art is easy the moist and sense of discomfort caused by user.
It should be understood that the change in depth of the diversion trench 11 can be continuous variation in the diversion trench 11
Stepped it can change, that is, at the extending direction along first guiding region 111, the both ends of first guiding region 111
It each extends over during forming second guiding region 112, by the depth of 111 to the second guiding region of the first guiding region 112
Degree variation can be continuous variation, stepped can also change.
Preferably, along the extending direction of the diversion trench 11, i.e., from the 112 to the first guiding region of second guiding region
111 again to second the second guiding region 112, and the change in depth of the diversion trench 11 is to arrive deep consecutive variations again from deep to shallow.
It should be understood that be formed in the diversion trench 11 on 10 surface of main part, according to different design requirements,
Distributed quantity on the surface of the main part 10 can be one, two or a plurality of, meanwhile, the diversion trench 11 can edge
The absorbent item 100 length direction extend, can also extend along the width direction of the absorbent item 100, certainly,
When being formed with a plurality of diversion trench 11, institute can be formed in the length direction and width direction of the absorbent item 100
State diversion trench 11.
Preferably, in the present embodiment, the surface of the main part 10 is formed with two diversion trenches being oppositely arranged 11,
Two diversion trenches 11 extend along the length direction of the absorbent item 100.
It should be understood that the diversion trench 11 can be linear type diversion trench, it is also possible to shaped form diversion trench.
The absorbed layer 30 is for absorbing the liquid permeated from the permeable top layer 20.The absorbed layer 30 is preferably
Mainly to be formed by Time of Fluff Slurry.
In the present invention, the material for forming the absorbed layer 30 does not have special restriction, as long as can be used in absorbent item
In and be capable of forming the material of the material layer with absorption function or mixing material is applicable to the present invention, such as have
There are the high molecular material and high molecular material and the mixing material of plant fiber etc. of moisture pick-up properties.
The opaque liquid bottom 40 is used to stop the liquid in the absorbed layer 30 to continue leakage downwards.Described in being formed not
The material of liquid permeability bottom 40 can be the high molecular material with hydrophobic performance or the impermeable material with compact structure
Layer etc..
It should be understood that in the absorbent item 100 provided by the present invention, along the thickness of the absorbent item 100
The recessed depth in direction, the diversion trench 11 can be designed according to different product demands, that is to say, that in the main body
The thickness direction in portion 10, the depth that the diversion trench 11 is inwardly recessed can be less than or equal to the thickness of the permeable top layer 20
The thickness that the depth that degree or the diversion trench 11 are inwardly recessed can also be greater than the permeable top layer 20 is less than or equal to
The overall thickness of the permeable top layer 20 and absorbed layer 30, certainly, the depth that the diversion trench 11 is inwardly recessed can also be greater than
The permeable top layer 20 is less than or equal to the overall thickness of the main part 10 with the overall thickness of absorbed layer 30.
Compared with prior art, the absorbent item 100 provided by the present invention, it is fixed on the absorbent item 100
Justice goes out a central region 101.First guiding region 111 is set in the central region 101, while along first guiding region
111 extending direction is each extended over by the both ends of first guiding region 111 to form two the second guiding regions 112, thus
One is formed on the absorbent item 100 by first second guiding region 112, the first guiding region 111 again to second the
Two guiding regions 112 are sequentially communicated and the diversion trench 11 that is formed, and then setting leads at least one of described second guiding region 112
The depth for flowing area is greater than the depth of first guiding region 111.By said structure design, so that liquid is falling on the absorption
Behind the surface of articles 100, liquid can be under the guidance of the diversion trench 11 quickly to two ends of the absorbent item 100
Portion or two side diffusions, on the one hand, each region in the absorbed layer of the absorbent item 100 can be made to obtain as far as possible
On the other hand liquid can also be avoided to concentrate on the central region of absorbent item 100 and lead to absorbent item to sufficient application
100 central region remains moister state and wearer is caused to generate uncomfortable defect.
In addition, those skilled in the art can also do other variations in spirit of that invention.Therefore these are spiritual according to the present invention
The variation done, all should be comprising within scope of the present invention.
Claims (5)
1. a kind of absorbent item, has a main part, the main part has central region, it is characterised in that: the main body
Portion has the diversion trench by main part appearance towards formation recessed inside main part, and the diversion trench includes being located at the main part
First guiding region of central region, and the extending direction along first guiding region, by the both ends point of first guiding region
Two the second guiding regions not extended to form；Wherein in second guiding region, at least one the second guiding region along institute
It states main part surface and is greater than first guiding region along the main part surface to main part to recessed depth inside main part
Internal recessed depth；The main part includes the successively folded permeable top layer set, absorbed layer and opaque liquid bottom, described
The depth of the thickness direction of main part, the diversion trench is greater than the thickness of the permeable top layer, less than or equal to described
The overall thickness of fluidity top layer and absorbed layer；Along the extending direction of the diversion trench, the depth of the diversion trench changes in continuity
It or is in steps variation, wherein the diversion trench is to be inwardly compressed recessed and formed, the diversion trench region by fiber
Fibre density be greater than the main part other regions fibre density, and the region that water conservancy diversion groove depth is bigger, fiber are close
It spends bigger.
2. absorbent item as described in claim 1, it is characterised in that: length of first guiding region along the absorbent item
Direction extends.
3. absorbent item as described in claim 1, it is characterised in that: width of first guiding region along the absorbent item
Direction extends.
4. absorbent item as described in any one of claims 1 to 3, it is characterised in that: the diversion trench is formed in the transparent liquid
The outer surface of property top layer.
5. absorbent item as described in claim 1, it is characterised in that: the depth of described two second guiding regions is all larger than described
The depth of first guiding region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210257260.8A CN103565588B (en) | 2012-07-24 | 2012-07-24 | Absorbent item |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210257260.8A CN103565588B (en) | 2012-07-24 | 2012-07-24 | Absorbent item |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103565588A CN103565588A (en) | 2014-02-12 |
| CN103565588B true CN103565588B (en) | 2019-04-16 |
Family
ID=50038885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210257260.8A Active CN103565588B (en) | 2012-07-24 | 2012-07-24 | Absorbent item |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103565588B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2204591Y (en) * | 1994-11-16 | 1995-08-09 | 朱国铭 | Sanitary towel with extending grooves |
| JP3604520B2 (en) * | 1996-11-29 | 2004-12-22 | 花王株式会社 | Absorbent articles |
| JP3524026B2 (en) * | 1999-11-17 | 2004-04-26 | ユニ・チャーム株式会社 | Body fluid absorbent article |
| CN1449729A (en) * | 2002-04-11 | 2003-10-22 | 康那香企业股份有限公司 | Fully stopping absorbent pad |
| CN101234057A (en) * | 2007-01-29 | 2008-08-06 | 简元正 | Sanitary napkin with excellent drainage effect |
| CN203263622U (en) * | 2013-05-20 | 2013-11-06 | 陈孟春 | Far infrared intelligent foot warmer |
-
2012
- 2012-07-24 CN CN201210257260.8A patent/CN103565588B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103565588A (en) | 2014-02-12 |
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