CN1264489C - Sanitary absorbing products - Google Patents
Sanitary absorbing products Download PDFInfo
- Publication number
- CN1264489C CN1264489C CN 01141239 CN01141239A CN1264489C CN 1264489 C CN1264489 C CN 1264489C CN 01141239 CN01141239 CN 01141239 CN 01141239 A CN01141239 A CN 01141239A CN 1264489 C CN1264489 C CN 1264489C
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- sanitary towel
- absorbent pad
- far
- central absorbent
- flap
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Abstract
The present invention relates to a sanitary towel (10) which comprises a central absorbent pad (12), protective wings (24, 24') transversely and outwards extending from lengthways side edges (90, 90'), and two ideal bending axes (30, 30'), wherein the bending axes are positioned at the inner sides of the corresponding lengthways side edges (90, 90') and are closely adjacent to the corresponding lengthways side edges. The bending axes relative to a lengthways centerline (80) slantways extend, and converge towards the lengthways centerline (80) of the first far end of the central absorbent pad (12).
Description
Technical field
The present invention relates to disposable absorbent article as having the sanitary towel of flank and two desirable bending axis, each bending axis be positioned at the inboard of vertical side and with corresponding vertical side next-door neighbour, and bending axis tilt to extend with respect to longitudinal centre line, and converges towards the longitudinal centre line of central absorbent pad first far-end.
Background technology
The existing sanitary towel that has flank in the prior art, and be prevalent on the market.Usually, this flap crosses out so that the leg cuff of crotch's position underwear covers in will the person of wearing from the side of central absorbing structure.Like this, flap just is placed between the leg cuff of the person's of wearing thigh and interior crotch position underwear.In general, flap all has the link that flap is attached to the person's of wearing underwear inboard.
Flap has two use at least.The first, flap can prevent make dirty the leg cuff of the person's of wearing underwear of secretions; The second, flap is bonded at rear flank in the underwear, helps sanitary towel to be fixed in the underwear and prevents its original position that slips away.
Following United States Patent (USP) all discloses the sanitary towel that has flap: denomination of invention is that " Shaped Sanitary Napkin With Flaps ", invention people are that Van Tilburg, time are the U.S. Pat 4,687,478 on August 18th, 1987; Denomination of invention is for " Sanitary Napkin Attachment Means, invention people are Mattingly, time to be the U.S. Pat 4,608,047 on August 26th, 1986; Denomination of invention is that " Sanitary Napkin ", invention people are Van Tilburg, time to be the U.S. Pat 4,589,876 on May 20th, 1986; Denomination of invention is that " Sanitary Napkin ", invention people are McNair, time to be the U.S. Pat 4,285,343 on August 25th, 1981; Denomination of invention is that " Disposable Sanitary Shield For Undergarments ", invention people are Rickard, time to be the U.S. Pat 3,397,697 in August 20 nineteen sixty-eight; Denomination of invention is that " Sanitary Napkin ", invention people are Clark, time to be purpose U.S. Pat 2,787,271 in April 2 nineteen fifty-seven; Denomination of invention is that " Sanitary Napkin With UndergarmentGathering Flaps ", invention people are McCoy, time to be the U.S. Pat 4,900,320 in February 13 nineteen ninety.These patent documentations are here all as the application's list of references.
Although the sanitary towel that has a flap can both prevent the underwear of making dirty usually better with respect to the sanitary towel with flap not, they also exist action effect is not optimum problem.
Summary of the invention
An object of the present invention is to provide a kind of sanitary towel that has flap, it is applicable in the various forms of Lingeries that this comprises panty girdle, bikini, band trousers etc.
The invention provides a kind of sanitary towel that is suitable for being through in user's underwear.This sanitary towel comprises a central absorbent pad, and this central absorbent pad has the cover layer of liquid permeable, the barrier layer of non-liquid permeable and the absorptive core between cover layer and the barrier layer; , a longitudinal centre line; , a cross central line; A pair of relative vertical side; First far-end and second far-end on the other side; And along joint line from vertical side horizontal outwardly directed flap, flap combines along joint line with absorptive core, keep to the side substantially cross central line and can being folded in use on the interior crotch position of underwear of each sheet flap; Central absorbent pad further comprises two desirable bending axis, each bar bending axis all be positioned at the inboard of corresponding vertically side and with corresponding vertical side next-door neighbour, and this bending axis tilt to extend with respect to longitudinal centre line, and converges towards the longitudinal centre line of central absorbent pad first far-end.
These aspects of the present invention and others are by will be more readily apparent from below in conjunction with the explanation that accompanying drawing carried out.Obviously, these accompanying drawings are the purpose of property presented for purpose of illustration only, and as the qualification of the scope of the invention, protection scope of the present invention is determined by claims.
Description of drawings
Fig. 1 is the top plan view of sanitary towel of the present invention;
Fig. 2 is the cutaway view of the 2-2 along the line of sanitary towel among Fig. 1;
Fig. 3 is the bottom planar view of sanitary towel of the present invention.
The specific embodiment
The present invention relates to a kind of sanitary towel that is through crotch position in the underwear in use.This sanitary towel comprises a central absorbent pad, this central absorbent pad have liquid permeable cover layer, non-liquid permeable the barrier layer and be in cover layer and the barrier layer between absorptive core.Usually, the absorbability of this central absorbent pad 12 should be enough to absorb desired menstruation total amount.This central absorbent pad 12 is preferably slim, promptly uses its thickness of kind of calliper should be less than 5mm.Have now found that the very narrow very thin sanitary towel of absorptive core uses as snug as a bug in a rug.
This central absorbent pad has a longitudinal centre line; , a cross central line; A pair of relative vertical side; First far-end, second far-end on the other side and be in first far-end and second far-end between middle section.This sanitary towel has side flap, and flap is folded in the edge of crotch position in the person's of wearing underwear in use.Each sheet flap is all laterally protruding from vertical side along joint line.This central absorbent pad further comprises two desirable bending axis, and at least from the middle section of central absorbent pad to first far-end in this section, each bar bending axis all is positioned at the inboard of corresponding vertical side and is close to this vertical side.Described desirable bending axis tilt to extend with respect to longitudinal centre line, while and first far-end of bending axis from the middle section to the central absorbent pad extend towards longitudinal centre line and converge.
Terminology used here " sanitary towel " is meant that the women is worn over the articles for use that are close to the pudendum use in the underwear, it is used for absorbing and preserves the various secretions of discharging in the body (as menses, and urine), and after once using, it is promptly thrown away (that is, it no longer cleans or adopts others to preserve or utilization again).
Fig. 1 is a specific embodiment of sanitary towel of the present invention.This sanitary towel is by Reference numeral 10 expressions, and it mainly comprises a main body by central absorbent pad 12 expressions.This central absorbent pad 12 has an imaginary longitudinal centre line 80; Article one, imaginary cross central line 85; A pair of relative vertical side 90,90 '; First far-end 93, second far-end 95 on the other side and be in two middle sections 94 between the far-end.Top layer sheet stock 14 is located to link to each other in seam 39 (also can be called as flange seal) along the periphery of whole sanitary towel with bottom sheet stock 18.The purpose of seam is that each parts with sanitary towel are linked to be an overall structure.Seam 39 can be formed by any way that is used for this purpose in the prior art usually, as gluing, crimping or heat-sealing.Seam 39 shown in the figure is extended along the whole periphery of sanitary towel 10, and this can make its structure more easy.Yet, also can adopt other method that each parts are coupled together.As shown in Figure 2, central absorbent pad 12 comprises absorptive core 16, top layer sheet stock 14 and bottom sheet stock 18, and wherein bottom sheet stock 18 is placed on the side of absorptive core 16 with respect to top layer sheet stock 14.
Top layer sheet stock 14 can permeation liquid, and in the use of sanitary towel 10, it nestles up user's skin.Top layer sheet stock 14 relaxes suitable, soft and skin is not stimulated very much, and it can be made by any material traditional, this type.The material that is applicable to top layer sheet stock 14 here non-exclusively comprises by polyester, polypropylene, nylon and/or staple fibre etc. through woven or the non-woven fabric that forms for example.The top layer sheet stock can also be a kind of porous thermoplastic film.The top layer sheet stock 14 preferred perforated membranes that adopt, it can see through liquid but can not absorb any liquid like this.Like this, the surface of this film and Body contact can keep dry, and feels more comfortable.
Bottom sheet stock 18 can not be by liquid infiltration, therefore can prevent through liquid user's the clothes of making dirty.Any material that is used for this purpose all can be used on here in the prior art.That suitable material comprises embossing or the not polyethylene film and the laminated fabric of embossing.
Absorptive core 16 is a kind of devices that are used for absorbing through liquid.Absorptive core 16 normally compressible, comfortable and user's skin do not stimulated.It can comprise any material that is used for this purpose in the prior art.It comprises the compositions of wood fragments slurry (it is commonly called the gas felt), cotton crepe fiberfill, suction foam, water-absorbing sponge, absorbability hydrogel, polymer fiber or any certain jljl or these materials for example.As shown in figures 1 and 3, absorptive core 16 is wide in the part of second far-end 95 in a preferred embodiment, and shrinks gradually towards first far-end 93.By absorptive core 16 in the central absorbent pad 12 is shunk gradually and other parts keep same width substantially, along the edge of absorbent cores, extend to first far-end (93) or can be formed with a pair of relative desirable bending axis 30,30 at least from the zone of middle section 94 to first far-ends 93 from second far-end (95).
In another embodiment (not shown), the side of longitudinal extension is basically parallel to vertical side of central absorbent pad and a little inwardly is close to vertical side of central absorbent pad on the absorptive core.In the present embodiment, described desirable bending axis can form with the ditch that forms longitudinal extension by embossing on absorptive core, and this ditch can be used as hinged joint.
Referring now to Fig. 2 and Fig. 3,, have central absorbent pad bonding agent 20 with the outer surface part of the absorptive core 16 basic vertical bottom sheet stocks 18 that link to each other.Central absorbent pad bonding agent 20 provides a kind of sticker that central absorbent pad 12 is fixed to crotch part in the underwear.Any sticky agent or glue that is used for this purpose all can be used on here in the prior art, preferably adopts pressure adhesive.The bonding agent that is fit to adopt is the Century A305IV that Century Adhesives Corporation produces, and the Instant LOK 34-2823 of National Starch Company production.This central absorbent pad bonding agent can be identical with the width of absorptive core, and perhaps as shown in Figure 3, it is made of a plurality of narrow relatively bars.Yet width is not a key issue, and those of ordinary skills are easy to just can select suitable width and length.Central absorbent pad bonding agent 20 need be covered with central absorbent pad substrate 22 when adopting pressure adhesive, thereby prevents the bonding agent mummification and avoid it just to be bonded at before use on other irrelevant surface.Being used for any not sticking lining of this purpose in the commerce all can be used on here.Suitable not sticking lining indefiniteness ground comprises for example: BL30MG-A SILOXE1/10 and BL 30MG SILOX 4/P/O that Akrosil Corporation makes.
From above stated specification as can be known, central absorbent pad 12 comprises an absorbent cores, and this absorbent cores has one by fluid permeable, opposite with the upper surface of the surface coverage of Body contact (among Fig. 2 by 14 expressions of top layer sheet stock) and one surface (being represented by bottom sheet stock 18 among Fig. 2) that can not osmotic fluid.Obviously, shown this embodiment only is feasible a kind of embodiment.Other embodiment comprises such an embodiment, and wherein absorbent cores was almost completely wrapped up by the top layer sheet stock before being put in the bottom sheet stock.Absorbent cores also can comprise the absorbed layer of one deck independent completion, and its fluid permeable and another side be liquid permeable not after treatment.
Here the central absorbent pad 12 that it should be noted that relative narrower can be more effective, because the configured in one piece of sanitary towel 10 and use can make the nearer of such central absorbent pad 12 and health subsides.Central absorbent pad 12 is just so pressed close to can be positioned over the position that it should be located exactly with it: the vaginal opening of being close to health.Like this, before flowing along central absorbent pad 12 through liquid, central absorbent pad 12 can absorb most through liquid (menses).As shown in Figure 1, absorptive core 16 another distal area from the distal area of relative broad to relative narrower usually dwindles gradually, thus with the person's of wearing thigh basically identical, and also can adapt with various underwears at an easy rate.The width of second far-end of broad is preferably less than 75mm, more preferably approximately from 60mm to 70mm.Usually the width at the interior crotch part of underwear middle part is approximately from 45mm to 75mm.The width of the middle section 94 of central absorbent pad 12 preferably is less than or equal to the width of this regional underwear.The width of absorbent cores is preferably from second far-end and shrinks gradually continuously to first far-end, and the width of first far-end should preferably be about 15 to 20mm less than 30mm.Although shown contraction is straight line substantially, and this form also is preferred embodiment, and other version such as curve or camber line are also among scope of the present invention.In the use, if the underwear form that the person of wearing selects is close-fitting type, two of sanitary towel remote areas are basic in underwear so keeps planes, thereby keeps in touch with the person's of wearing health.Yet, if the underwear form is banding pattern or triangular form underwear, sanitary towel so of the present invention should fold along desirable sweep 30, thereby the remote area that makes the absorptive core relative narrower remains on the side of the person's of wearing underwear towards health, and then cosily turn up around the edge of underwear the side dead zone 33,33 ' of central absorbent pad first distal area.The lateral dimension of side dead zone needs even as big as the side dead zone is folded on the edge of underwear, so in use, the first distal edge dead zone just is enough to make the side dead zone to be folded on the edge of triangular form underwear from desirable sweep 30 to the lateral dimension vertical side 90.As a rule, lateral dimension is just enough during 7mm at least, and it is preferably about 10 to 20mm.As shown in Figure 3, side dead zone 33,33 ' preferably has central absorbent pad binding agent 20 at the bottom chip charge level to the one side of underwear, and it can make the person of wearing in use the side dead zone be sticked on their underwear.
Central absorbent pad 12 has two flaps 24 and 24 ', and vertical side of 12 stretches out along side direction from central absorbent pad near the middle part of flap cross central line.Terminology used here " middle part ", " cross central line " typically refer to central absorbent pad 12 residing zones, and wherein central absorbent pad 12 is placed on the interior crotch part of the person's of wearing underwear.Like this, for the asymmetric embodiment of those sanitary towels among the present invention, such as those ight products, middle part and cross central line are not to be in utterly on the geometric center of central absorbent pad just.Although two flaps are not must the mirror image symmetry each other, they are preferably symmetric.Top layer sheet stock 14 forms flap 24, a surface of 24 ', and bottom sheet stock 18 forms another surfaces.Usually flap does not need the top layer sheet stock just can normally use, but preferably adopts the top layer sheet stock.As shown in the figure, the top layer sheet stock of flap can be made of one with the middle absorbent body, and it is parts independently also; But the former is a preferred version.The front is discussed, all physical characteristics that top layer sheet stock 14 is had all can be applicable to the top layer sheet stock of any flap.Yet, here and do not require that the top layer sheet stock of flap and the top layer sheet stock of central absorbent pad adopt a kind of material.In one embodiment, the top layer sheet stock of flap can be that the top layer sheet stock of non-woven material central absorbent pad then is a kind of porous polymeric membrane.In the embodiment shown in Figure 2, bottom sheet stock 18 is as the bottom sheet stock of flap 24 and 24 '.Flap only has bottom sheet stock (perhaps in general be not the material of liquid permeable) could normally be used.The bottom sheet stock of flap can be made of one with the surface of the liquid impermeable of central core, but their also parts independently.The front is discussed, all physical characteristics that bottom sheet stock 18 is had all are applicable to the bottom sheet stock of flap.
Flap 24 has at least a part to scribble flap bonding agent 36 on the outer surface of underwear near in the zone of remote edge 78.Flap bonding agent 36 is a kind of viscous connection devices, and when flap was looped around on the edge of crotch part in the underwear as previously mentioned, it was used for flap 24 is remained on the original position.Any bonding agent that is used for central absorbent pad bonding agent 20 all can be used as the bonding agent 36 of flap.Equally, be stamped the not sticking substrate 38 of flap that one deck can remove on the flap bonding agent 36.Any central absorbent pad that is applicable to is not glued the or not substrate 38 that the or not backing material of substrate 22 all can be used as flap.Each sheet flap 24,24 ' all links to each other with central absorbent pad 12 along joint line 26.Terminology used here " joint line " is meant various curves or straight line.Each sheet flap 24,24 ' all has a distal edge 78, and it is away from joint line 26 determined near side (ns)s.
Obviously, joint line 26,26 ' is flap 24, the 24 ' line that links to each other with absorbent cores (it is by central absorbent pad 12 expressions); They are also representing the boundary line between absorbent cores and the flap equally.In Fig. 1 and embodiment shown in Figure 3, joint line 26,26 ' and desirable sweep 30,30 ' the central region 94 in central absorbent pad 12 intersect.
Sanitary towel of the present invention in use need will not glue substrate 22 and 38 and 38 ' than sanitary towel as Figure 1-3 and remove, and sanitary towel is placed in the underwear to get final product then.The middle section of central absorbent pad 12 should be placed on the interior crotch part (not shown) of underwear, and an end of central absorbent pad 12 should stretch to the front portion of underwear and the other end stretches to the rear portion of underwear, and bottom sheet stock 18 should contact with the inner surface at hip middle part in the underwear.Central absorbent pad bonding agent 20 remains on original position with central absorbent pad 12.Flap 24,24 ' far-end are folded in the side of crotch part in the underwear respectively.Flap bonding agent 36,36 ' is fixed on such position with flap 24,24 ', and promptly each sheet flap 24 and 24 ' all is folded in above the part of underwear.
Claims (9)
1. a sanitary towel comprises a central absorbent pad (12), and this central absorbent pad (12) has the cover layer (14) of liquid permeable, the absorptive core (16) between the barrier layer of liquid permeable (18) and cover layer (14) and barrier layer (18) not; , a longitudinal centre line (80); , a cross central line (85); A pair of relative vertical side (90,90 '); First far-end (93) and second far-end on the other side (95); And along joint line (26,26 ') from the vertical side (90 of each bar, 90 ') horizontal outwardly directed flap (24,24 '), described flap (24,24 ') and described absorptive core are along described joint line (26,26 ') combination, described each sheet flap (24,24 ') is all basic also can be folded on the interior crotch position of underwear in use near cross central line (85); Central absorbent pad (12) further comprises two desirable bending axis (30,30 '), each bar bending axis all is positioned at corresponding vertically side (90,90 ') inboard and with corresponding vertical side next-door neighbour, and bending axis tilt to extend with respect to longitudinal centre line (80), and converges towards the longitudinal centre line of central absorbent pad (12) first far-ends (93).
2. sanitary towel as claimed in claim 1 is characterized in that, described desirable bending axis (30,30 ') extends to first far-end (93) from cross central line (85).
3. sanitary towel as claimed in claim 1 is characterized in that, described desirable bending axis (30,30 ') extends to first far-end (93) from second far-end (95).
4. sanitary towel as claimed in claim 1 is characterized in that, first far-end (93) width is less than 30mm.
5. sanitary towel as claimed in claim 1 is characterized in that, first far-end (93) width is about 15mm to 20mm.
6. sanitary towel as claimed in claim 1 is characterized in that, described central absorbent pad (12) has a pair of opposed side edges dead zone, and described each side dead zone is by corresponding desirable sweep, and described side dead zone in use may be folded on the person's of wearing underwear edge.
7. sanitary towel as claimed in claim 6 is characterized in that, each side dead zone all has a viscous connection device in the side towards underwear, and it can make the person of wearing in use the side dead zone be sticked on the underwear.
8. sanitary towel as claimed in claim 6 is characterized in that, the lateral dimension of described side dead zone from desirable sweep to vertical side (90,90 ') is at least 7mm.
9. sanitary towel as claimed in claim 8 is characterized in that, the lateral dimension of described side dead zone from desirable sweep to vertical side (90,90 ') is about 10 to 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01141239 CN1264489C (en) | 2001-09-12 | 2001-09-12 | Sanitary absorbing products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01141239 CN1264489C (en) | 2001-09-12 | 2001-09-12 | Sanitary absorbing products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1406565A CN1406565A (en) | 2003-04-02 |
| CN1264489C true CN1264489C (en) | 2006-07-19 |
Family
ID=4676071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01141239 Expired - Fee Related CN1264489C (en) | 2001-09-12 | 2001-09-12 | Sanitary absorbing products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1264489C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD473642S1 (en) | 2001-03-12 | 2003-04-22 | Johnson & Johnson Industria E Comercio Ltda | Hygienic napkin |
| US6964655B2 (en) * | 2001-11-01 | 2005-11-15 | Mcneil-Ppc, Inc. | Thong sanitary napkin with self folding flaps |
| US8419699B2 (en) * | 2008-10-24 | 2013-04-16 | TamiCare, Ltd. | Absorbent pad |
-
2001
- 2001-09-12 CN CN 01141239 patent/CN1264489C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1406565A (en) | 2003-04-02 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060719 Termination date: 20200912 |
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| CF01 | Termination of patent right due to non-payment of annual fee |