CN1175789C - Absorbing article for body fluid - Google Patents
Absorbing article for body fluid Download PDFInfo
- Publication number
- CN1175789C CN1175789C CNB981152554A CN98115255A CN1175789C CN 1175789 C CN1175789 C CN 1175789C CN B981152554 A CNB981152554 A CN B981152554A CN 98115255 A CN98115255 A CN 98115255A CN 1175789 C CN1175789 C CN 1175789C
- Authority
- CN
- China
- Prior art keywords
- fiber
- mentioned
- woven fabrics
- flap
- fibrous layer
- 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.)
- Expired - Lifetime
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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
- A61F13/45—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
- A61F13/4752—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier
- A61F13/4753—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier the barrier being not integral with the topsheet or backsheet
-
- 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
- A61F13/4757—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being located outside the perimeter of the absorbent core
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (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
To improve body fluid absorptivity and skin adhesiveness of an absorptive article, by constituting a second flap by two air permeable fiber layers made of thermoplastic synthetic fiber of specific denier and an air permeable fiber layer made of thermoplastic synthetic fiber extremely thinner than the fiber in the two layers and having high water pressure resistance and integrally put in between the two fiber layers. A second flap 10 placed on each upper face of both side flaps is constituted of nonwoven fabric 11. The nonwoven fabric 11 is constituted by integrally putting a third fiber layer in between air permeable first and second fiber layers made of thermoplastic synthetic fiber not thinner than 1 denier. The third fiber layer is constituted of extremely thin thermoplastic synthetic fiber not thicker than the denier of the fiber used in the first and second fiber layers 11a, 11b. The water pressure resistance of the third fiber layer is made higher than that of the first and second fiber layers and the third fiber layer is made air permeable. This constitution makes liquid resistance be improved, side leaks and penetration be prevented, and strength and feeling be improved.This invention related to an absorbent with enhanced protection capsule design. This absorbent were used for human body fluid like feminine hygiene tampon. The enhanced capsule improved fluid resistance, air permeability, and surface traction. The capsule included three fiber layers, which were spin bonding nowoven, meltblow nonwoven, and air jet texturing nonwoven, respectively.
Description
Technical field
The present invention relates to absorbing article for body fluid, relate in particular to the sanitary towel that absorbs the menses retain the women or pad, female patients with absorbent devices such as incontinence pads.
Background technology
In the existing sanitary towel that for example absorbs the menses retain the women, dispose the anti-liquid stream flap of (or stopping) on the relative sidepiece of sanitary towel, this class sanitary towel is widely known by the people.
But this class flap or constitute by the plastics that easily make body fluid at the not saturating dampness of Surface runoff, though or by the tool moisture vapor permeability but the impenetrable liquid poor performance and/or because of wearing the fluffing easily that rubbed in the crotch district erects and then damaged non-woven fabrics constitutes, or constitute by the higher plastic sheeting of the rigidity that is not easy closely to contact and the composite sheet of non-woven fabrics with wearer's crotch district.
As flap, wish that it has following performance, for example: body fluid is easily in its Surface runoff but side leakage does not take place, and body fluid is not easy infiltration, is not easy to erect or damaged because of fluff with wearer's crotch portion friction, with tight performance such as contact between easy and wearer's crotch.
Summary of the invention
The purpose of this invention is to provide the absorbing article for body fluid that has above-mentioned expected performance, can overcome above-mentioned shortcoming of the prior art.
The present invention relates to the improvement of absorbing article for body fluid, this absorbent device have comprise with the face of contact skin and not with the lamination sheets of the face of contact skin, but above-mentioned lamination sheets by the top flat of the transflective liquid on the face of above-mentioned and contact skin, not with the face of contact skin on liquid-tight egative film, be clipped in wick between above-mentioned two, from the opposed lateral margin of wick laterally outwardly side extended form by above-mentioned egative film at least and have first flap that stops the body fluid function constitute with linking to each other with first flap and having second flap that stops the body fluid function.
The invention is characterized in said structure, above-mentioned second flap is made of first, second fibrous layer and the 3rd fibrous layer, first, second fibrous layer is made by the thermoplastic synthetic fiber more than 1 danier and is had a breathability, above-mentioned the 3rd fibrous layer is made by the superfine thermoplastic fibre littler than above-mentioned Denier values, it is integratedly between first and second fibrous layers, its water pressure resistance value is than first and second fiber floor height, and has breathability.
In one embodiment of the invention, above-mentioned first and second fibrous layers are spunbond bonded non-woven fabrics.
In another embodiment of the present invention, above-mentioned first and second fibrous layers are spunbond non-woven fabrics into the net.
In an embodiment of the present invention, above-mentioned the 3rd fibrous layer is a melt spraying non-woven fabrics.
In an embodiment of the present invention, the basic weight of above-mentioned second flap is 10-30g/m
2
In an embodiment of the present invention, the above-mentioned the 3rd fibrolaminar water pressure resistance value is at least 30mm.
In one embodiment of the invention, above-mentioned first and second fibrous layer respectively accounts for the 20-45 percentage by weight of non-woven fabrics, and above-mentioned the 3rd fibrous layer accounts for the 10-60 percentage by weight of non-woven fabrics.
In one embodiment of the invention, the fiber number of above-mentioned first and second fibrolaminar fiber is the 1-3 danier, and the 3rd fibrolaminar fibre number is less than 1 danier.
In one embodiment of the invention, the longitudinal stress that above-mentioned second flap extended 5% o'clock is 400-1000g/25mm, and lateral stress is 50-300g/25mm.
In one embodiment of the invention, above-mentioned first and second fibrous layer and the 3rd fibrolaminar lamination are interrupted the weld portion maintenance of the point-like embossing processing generation of distribution.
In one embodiment of the invention, the area ratio of above-mentioned weld portion is 5-30%.
In one embodiment of the invention, above-mentioned first and second fibrous layers and the 3rd fibrolaminar lamination keep by fiber is staggered.
According to absorbent device of the present invention, body fluid can flow arbitrarily on the surface of second flap, or through articles for use, and do not leak from the lateral margin of absorbent device, and because of having breathability, vexed wetting do not appear between articles for use and wearers skin, but also has required compliance, so that closely contact fully,, can not erect breakage because of rubbing to fluff with wearer's crotch portion even under the situation of closely contact with wearer's crotch district yet.
Can be summarized as follows if further specify its reason, that is: because constitute second flap be positioned at two lip-deep first and second fibrous layers by having fibrous more than hydrophobic 1 danier, so fluid its surface be unlikely resemble on plastic sheeting disorderly flowing, just do not have so-called smooth or slick flatness.Because the 3rd fibrous layer that is positioned at the centre position that constitutes second flap is made of the so-called superfine fibre of the following fiber number of 1 danier, interfibrous space is littler than first, second fibrous layer, so have the water pressure resistance value of the degree that body fluid do not see through.Because not only first, second fibrous layer but also the 3rd fibrous layer all have breathability, so ventilative in good condition between these articles for use and wearers skin.Because second flap is made up of first, second and the 3rd fibrous layer, that is to say all by fibrous, so not only submissive but also can be adjacent to wearer's skin.Because first, second fibrous layer fibrous, promptly different by more than 1 danier with the 3rd fibrolaminar superfine fibre, thus certain mantle friction intensity had, and be unlikely because of making fibrous fracture or fluffing erect breakage with wearer's crotch portion friction.
Description of drawings
Fig. 1 is the plane graph of the sanitary napkin of absorbing article for body fluid one example of the present invention;
The section amplification oblique drawing of Fig. 2 for dissecing along 2-2 line among Fig. 1;
Fig. 3 is the non-woven fabrics amplification profile diagram that constitutes second flap;
Fig. 4 is the amplification oblique drawing identical with Fig. 2 of another embodiment;
Fig. 5 is the amplification oblique drawing identical with Fig. 2 of another embodiment.
Symbol description among the figure
The face 4 of 1 lamination sheets 3 and contact skin not with the face of contact skin
5 top flats, 6 egative films, 7 wick
9 the 1st flaps 10 the 2nd flap, 11 non-woven fabrics
11a the 1st fibrous layer 11b the 2nd fibrous layer 11c the 3rd fibrous layer
The specific embodiment
Being example with the sanitary towel that absorbs women's menses or pad with reference to the accompanying drawings describes the embodiment of absorbing article for body fluid involved in the present invention.
In Fig. 1 and Fig. 2, sanitary towel comprises lamination sheets 1, lamination sheets 1 have with the face 3 of contact skin and not with the face 4 of contact skin.Lamination sheets 1 comprises and forms with the saturating liquid top flat 5 of the face 3 of contact skin, forms not the liquid-tight egative film 6 with the face 4 of contact skin, is clipped in the wick 7 between above-mentioned two.Can be covered wick 7 and stretch out from the wick outer peripheral edges of the size of top flat 5 and egative film 6 forms the flap 8 and two side flaps 9 at both ends by these extended parts.The width of top flat 5 is narrower than egative film 6.Therefore, stretch out in flap 9 both side edges that 6 both side edges exceeds top flat 5 of winding the film.Forming the top flat 5 of flap 8,9 and the extension of egative film 6 respectively engages one another by known engagement means such as welding or bonding agents.
Top flat 5, egative film 6 and wick 7 all adopt the constituent material of well known materials as absorbing article for body fluid such as sanitary towels.Specifically, top flat 5 adopts the non-woven fabrics that for example has or do not have many perforates or liquid capillaceous, has many perforates or plastic sheeting capillaceous.Egative film 6 for example adopts the plastic sheeting of dampness or the laminate of this class thin film and non-woven fabrics thoroughly.Wick 7 for example adopts the mixture of wood pulp material and superabsorbent hydrogel particle.Above-mentioned non-woven fabrics for example can be TPO, polyesters, polyamide-based, and they can be with the non-woven fabrics that melts and sprays, spunbond one-tenth net, pin perforation, thermal bonding, spunbond joint, mechanical engagement process.For example can be that basic weight is 10-45g/m
2, fiber number is the non-woven fabrics that the fiber of 0.1-10 danier is made.Above-mentioned plastic sheeting for example can be to contain inorganic particle by prolonged treatment low-density polyethylene film with many micropores.Above-mentioned hydrogel for example can be the graft polymers of self-cross linking type alkali metal salts of acrylic acids polymer, starch, cellulose modified thing, water soluble polymer cross-linking agent etc.
First, second and the 3rd fibrous layer 11a, 11b, the material of 11c for example can be TPO, polyesters, polyamide-based non-woven fabrics.Particularly preferably be the first and second fibrous layer 11a, 11b is spunbond joint or spunbond one-tenth net non-woven fabrics, and the 3rd fibrous layer 11c is a melt spraying non-woven fabrics.The basic weight of non-woven fabrics 11 is 10-30g/m
2, the first and second fibrous layer 11a wherein, 11b respectively accounts for the 20-45 percentage by weight, and the 3rd fibrous layer 11c accounts for the 10-60 percentage by weight, preferably can satisfy the requirement of intensity and feel.Though because the fibre density of the 3rd fibrous layer 11c is than first, second fibrous layer 11a, the density height of 11b, promptly interfibrous space is little, and breathability is poor, but still can make sanitary towel have desired breathability.If do not reach above-mentioned basic weight and weight percent values then can not obtain required intensity, then can not obtain needed feel if surpass above-mentioned value.In addition, if the 3rd fibrous layer 11c does not reach 10 percentage by weights, then can not obtain needed water pressure resistance value.Preferably the water pressure resistance value that records according to the JIS regulation is more than 30mm.If the water pressure resistance value does not reach above-mentioned numerical value, then can not stop liquid fully, body fluid sees through easily, and this is worthless.The first and second fibrous layer 11a, the fiber of 11b are the 1-3 danier, and the fiber of the 3rd fibrous layer 11c is the so-called superfine fibre less than 1 danier.The 3rd fibrolaminar fibre density is than the first and second fibrous layer 11a, and the 11b height can obtain non-woven fabrics 11 required water pressure resistance value, intensity and feel etc. whereby.
Feel to non-woven fabrics 11 also can be described further, if wish not produce feel really up to the mark when forming fold, extending 5% o'clock best longitudinal stress is 400-1000g/25mm, and lateral stress is 50-300g/25mm, and this non-woven fabrics 11 can be made by above-mentioned fiber.
Can carry out the weld that the hot pressing stricture of vagina handles or utilize high-velocity flow to handle staggered maintenance first, second and the 3rd fibrous layer 11a of fiber by the compartment of terrain, 11b, 11c's is stacked.Can also make non-woven fabrics 11 have required intensity and feel when preferably keeping each layer as described above.Utilizing the hot pressing stricture of vagina to handle under the situation that produces weld portion, the area ratio that preferably makes weld portion is 5-30%, if less than this numerical value, can not obtain needed intensity, if greater than this numerical value, can not obtain required feel breathability is reduced.
Each flap 10 shown in Fig. 4 has cardinal extremity district 12 and free end region 13, swing at free end region 13 under the state of foreign side, utilize known manner such as welding, bonding agent vertical both ends 14 of cardinal extremity district 12 and free end region 13 be bonded on with being integral each flap 9 above.Free end region 13 pass through its part is folded in the inboard cylinder 15 that forms place along the elastomeric element 16 of cylinder contraction, with known hot-melt adhesive secures resilient member 16, contraction by elastomeric element can make free end region 13 have the tendency that upwards erects, and this point and embodiment 2 are basic identical.
Though each flap 10 shown in Figure 5 have on cardinal extremity district 12 and free end region 13 these aspects identical with Fig. 2 and embodiment shown in Figure 4, but being flexed into section at the cross direction middle body roughly is the U font and makes all formation cylinders, under the state of two cardinal extremity districts, 12 clamping flaps 9, utilize known approaches such as welding, bonding agent to be bonded into one.Placement with known hot-melt adhesive secures resilient member 16, makes free end region 13 have the tendency that upwards erect by elastic components contract along the elastomeric element 16 that the warpage edge inner face of free end region 13 shrinks, and the embodiment of these and Fig. 2 is basic identical.Yet elastomeric element 16 shown in Figure 5 section on than the width of broad roughly is the U oxbow, and free end region 13 also has good resilient flexible (resiliency).If elastomeric element 16 has good resiliency, then not necessarily shrink fixing.
Can adopt natural or synthetic rubber, elastomer etc. as elastomeric element 16, preferably adopt Polyurethane as elastomeric element shown in Figure 5 16 with open bore, this class Polyurethane not only has good flexibility but also has breathability and hygroscopicity.
Claims (10)
1. absorbing article for body fluid, it have comprise with the face of contact skin and not with the lamination sheets of the face of contact skin, but this lamination sheets is by the top flat of the transflective liquid on the face that is positioned at above-mentioned and contact skin, be positioned at not the liquid-tight egative film on the face with contact skin, be clipped in the wick between above-mentioned two, laterally outwardly side is extended has first flap that stops the body fluid function by what above-mentioned egative film formed at least from the opposed lateral margin of wick, with be positioned at second flap that this having above first flap stops the body fluid function and constitute, it is characterized in that: above-mentioned second flap is made by non-woven fabrics, this non-woven fabrics is by first fibrous layer, second fibrous layer and the 3rd fibrous layer constitute, and the basic weight of non-woven fabrics is 10-30g/m
2Wherein first and second fibrous layers respectively account for the 20-45 percentage by weight of aforementioned non-woven fabrics, the 3rd fibrous layer accounts for the 10-60 percentage by weight of aforementioned non-woven fabrics, first and second fibrous layers are made by the thermoplastic synthetic fiber more than 1 danier and are had a breathability, the 3rd fibrous layer is made by the superfine thermoplastic fibre littler than above-mentioned Denier values, it is integratedly between first and second fibrous layers, and its fibre density, water pressure resistance value be than the first and second fiber floor heights, and has breathability.
2. absorbent device as claimed in claim 1 is characterized in that above-mentioned first and second fibrous layers are spunbond joint non-woven fabrics.
3. absorbent device as claimed in claim 1 is characterized in that above-mentioned first and second fibrous layers are spunbond one-tenth net non-woven fabrics.
4. absorbent device as claimed in claim 1 is characterized in that above-mentioned the 3rd fibrous layer is a melt spraying non-woven fabrics.
5. absorbent device as claimed in claim 1 is characterized in that above-mentioned the 3rd fibrous layer water pressure resistance value is at least 30mm.
6. absorbent device as claimed in claim 1, the fiber number that it is characterized in that the above-mentioned first and second fibrolaminar fibers is the 1-3 danier, the 3rd fibrolaminar fibre number is less than 1 danier.
7. absorbent device as claimed in claim 1 is characterized in that above-mentioned second flap extended at 5% o'clock, and its longitudinal stress is 400-1000g/25mm, and lateral stress is 50-300g/25mm.
8. absorbent device as claimed in claim 1 is characterized in that above-mentioned first and second fibrous layers and the 3rd fibrolaminar stacked weld portion that is processed to form by the point-like embossing that distributes by interruption keep.
9. absorbent device as claimed in claim 8 is characterized in that above-mentioned weld portion area ratio is 5-30%.
10. absorbent device as claimed in claim 1 is characterized in that first and second fibrous layers and the 3rd fibrolaminar stacked being interlocked by fiber keep.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP109213/97 | 1997-04-25 | ||
| JP9109213A JPH10295724A (en) | 1997-04-25 | 1997-04-25 | Absorptive article for body fluid treatment |
| JP109213/1997 | 1997-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1201651A CN1201651A (en) | 1998-12-16 |
| CN1175789C true CN1175789C (en) | 2004-11-17 |
Family
ID=14504472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981152554A Expired - Lifetime CN1175789C (en) | 1997-04-25 | 1998-04-24 | Absorbing article for body fluid |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPH10295724A (en) |
| KR (1) | KR19980081545A (en) |
| CN (1) | CN1175789C (en) |
| ID (1) | ID20850A (en) |
| MY (1) | MY128196A (en) |
| TW (1) | TW391873B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001315268A (en) * | 2000-05-09 | 2001-11-13 | Uni Charm Corp | Gas permeable and liquid impermeable composite sheet |
| US7341963B2 (en) * | 2005-05-17 | 2008-03-11 | Milliken & Company | Non-woven material with barrier skin |
| CN101542032B (en) * | 2006-06-23 | 2011-08-24 | 尤妮佳股份有限公司 | Non-woven fabric |
| JP4789793B2 (en) * | 2006-12-20 | 2011-10-12 | 花王株式会社 | Absorbent articles |
| JP5060819B2 (en) * | 2007-03-30 | 2012-10-31 | ユニ・チャーム株式会社 | Absorbent articles |
| CN105696198B (en) * | 2014-11-26 | 2017-12-12 | 聚隆纤维股份有限公司 | The method with moisture absorption metastatic adhesive-bonded fabric is prepared using spunbond mode |
| CN105696192B (en) * | 2014-11-26 | 2017-12-12 | 聚隆纤维股份有限公司 | The method with moisture absorption metastatic adhesive-bonded fabric is prepared using melt-blown mode |
| JP6973998B2 (en) * | 2015-09-29 | 2021-12-01 | 日東電工株式会社 | Manufacturing method of layered goods |
-
1997
- 1997-04-25 JP JP9109213A patent/JPH10295724A/en active Pending
-
1998
- 1998-04-20 KR KR1019980013994A patent/KR19980081545A/en not_active Application Discontinuation
- 1998-04-22 ID IDP980603A patent/ID20850A/en unknown
- 1998-04-23 TW TW087106269A patent/TW391873B/en not_active IP Right Cessation
- 1998-04-24 CN CNB981152554A patent/CN1175789C/en not_active Expired - Lifetime
- 1998-04-24 MY MYPI98001865A patent/MY128196A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10295724A (en) | 1998-11-10 |
| ID20850A (en) | 1999-03-11 |
| CN1201651A (en) | 1998-12-16 |
| TW391873B (en) | 2000-06-01 |
| KR19980081545A (en) | 1998-11-25 |
| MY128196A (en) | 2007-01-31 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20041117 |