GB2048684A - Sanitary towel - Google Patents

Sanitary towel Download PDF

Info

Publication number
GB2048684A
GB2048684A GB8013935A GB8013935A GB2048684A GB 2048684 A GB2048684 A GB 2048684A GB 8013935 A GB8013935 A GB 8013935A GB 8013935 A GB8013935 A GB 8013935A GB 2048684 A GB2048684 A GB 2048684A
Authority
GB
United Kingdom
Prior art keywords
leakage
sanitary towel
preventing layer
woven fabric
fabric sheet
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.)
Granted
Application number
GB8013935A
Other versions
GB2048684B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
Kao Soap Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kao Corp, Kao Soap Co Ltd filed Critical Kao Corp
Publication of GB2048684A publication Critical patent/GB2048684A/en
Application granted granted Critical
Publication of GB2048684B publication Critical patent/GB2048684B/en
Expired legal-status Critical Current

Links

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
    • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
    • 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
    • A61F13/515—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 characterised by the interconnection of the topsheet and the 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
    • A61F13/51—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
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
    • A61F2013/51409—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film

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

A sanitary towel having a substantially rectangular shape, which comprises a non-woven fabric sheet forming a liquid-permeable surface, a leakage-preventing layer comprising a liquid-impermeable back sheet, and an absorbent member between the non-woven fabric sheet and the leakage preventing layer, wherein a concave area is formed over a part of the central portion of the longer sides of the absorbing member, and the non-woven fabric sheet and the leakage-preventing layer are bonded together to form flaps on the outside of the longer sides of the absorbing member. <IMAGE>

Description

SPECIFICATION Sanitary towel The present invention relates to sanitary towel for menstrual discharges. More particularly, the present invention relates to a sanitary towel in which the adhesion of a portion to remain in contact with the human skin is improved so that the leakage of disch arged fluids in the lateral direction is reduced or prevented.
A conventional sanitary towel has a structure comprising an absorbent member composed of fluid fed pulp and absorbent tissue, leakage-preventing layers formed on the lower and side faces of the absorbent member and a non-woven fabric enclosing the entire assembly. The non-woven fabric of this santia ry towel is thin and has a flat structure, and it is rendered hydrophobic by incorporation of a binder or hydrophobic fibers. Since the sanitary towel is inserted in the crotch while it is used, it has a humped shape in which the central portion is higher than the edge portions. Accordingly, when the speed of discharge of the fluid is very high, the discharged fluid can flow in a lateral direction along the surface of the towel by virtue of the Smoothness and hydrophobic property of the non-woven fabric, and lateral leakage results.If the width of the sanitary towels reduced so that a humped shape is not formed, the volume of the absorbent member is decreased and the leakage-preventing layer becomes rolled up.
Accordingly, there is a danger of insufficient absorption and leakage of discharged fluid. As improved sanitary towels for preventing such leakages, Japanese Patent Publication No. 39960176 and Japanese Utility Model Publication No. 15116177 propose novel structures. However, even in these cases the adhesion of the skin to the contact portion is insufficient, and no satisfactory prevention of leakage has been attained.
We have carried out research with a view to eliminating or reducing the above-mentioned defect of conventional sanitary towels, without reducing the absorbing properties, and as a result, we have now completed the present invention.
Accordingly, we provide a sanitary towel having a substantially rectangular shape, which comprises a non-woven fabric sheet forming a liquidimpermeable back sheet, and an absorbent member between the non-woven fabric sheet and the leakage-preventing layer, wherein a concave area is formed over a part of the central portion of the longer sides of the absorbing me#mber, and the nonwoven fabric sheet and the leakage-preventing layer are bonded together to form flaps on the outside of the longer sides of the absorbing member.
According to the invention, the absorbent member is encased in the non-woven sheet and a leakagepreventing sheet in such a mannerthattheir periph eral portions form together a flap. The #-#-#oabsorbent member has concave portions on its longitudinal sides.
In the sanitary towel according to the present inv ention, as the leakage-preventing layer, there can be used, for example, a polyethylene film, a polyvinyl alcohol film, a polyethylene-laminated paper and a waterproof paper which has been subjected to a tre atment to render it water-repellent. There can, for example, be used an absorbent member of a conve ntional material such as a fluffed pulp, absorbent tissue or polymeric absorbent. A layer of rayon sta ple fibres or synthetic fibers may be inserted between the absorbent member and the non-woven fab ric as a surface sheet.
Sanitary towels embodying the invention are described below and by way of example only, with reference to the accompanying drawings, in which: Fig. 1 is a perspective view illustrating one embodiment of the sanitary towel according to the present invention. Fig 2 is a view showing a section taken along the lineX1-X1, in Fig. 1. Fig. 3 is a view showing a section taken along the line X2-X2, in Fig. 1. Figs 4A to 4E are plan views showing varieties of absorbent member. Figs 5A to 5C are plan views showing various alternative pleated portions of the sanitary towel of the present invention.
As may be seen from Figs. 1 to 3 the sanitary towel of the present invention is formed by wrapping an absorbing member 2 having notched concave areas 5 in its central portion in a non-woven fabric sheet 1 and overlapping a leakage-preventing layer 3 and the non-woven fabric sheet 1 to form flaps 4. The shape of the concave area 5 is not limited to those shown by way of example in Figs. 4A to 4E. It is preferred that the minimum value of the width a of the absorbent member, which is in the concave area 5, be 50 to 90% ofb which is the maximum width as shown in Figs. 2 to 4. Furthermore, it is preferred that the length of the concave area c be 20 to 90% of the whole length d of the longer side of the absorbing member 2. Figs. 5A to 5C are plan views showing various variations of the flap portion 4. The shape of the flap portion 4 is not particularly critical in the present device, and a concave area' may also be formed on the flap portion 4 as shown in Figs. 5B and 5C.
In the sanitary towel of the present device having the above-mentioned structure, the adhesion to the contact portion is highly improved, and lateral leakage of discharged fluid can be effectively prevented.

Claims (4)

1. A sanitary towel having a substantially rectangular shape, which comprises a non-woven fabric sheet forming a liquid-permeable surface, a leakage-preventing layer comprising a liquidimpermeable back sheet, and an absorbent member between the non-woven fabric sheet and the leakage-preventing layer, wherein a concave area is formed over a part of the central portion of the longet sides of the absorbing' member, and the nonwoven fabric sheet and the leakage-preventing layer are bonded together to form flaps on the outside of the longer sides of the absorbing member.
2. A sanitary towel as set forth in claim 1 wherein minimum width of the absorbing member at the concave area is 50 to 90% of the maximum width of the absorbing member, and the length of the concave area is 20 to 90~/O of the entire length of the member.
3. A sanitary towel as set forth in claim 2 wherein the flaps have concave areas corresponding with the concave area of the absorbent member.
4. A sanitary towel, substantially as herein described, with reference to the accompanying drawings.
GB8013935A 1979-05-07 1980-04-28 Sanitary towel Expired GB2048684B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6032079U JPS55161520U (en) 1979-05-07 1979-05-07

Publications (2)

Publication Number Publication Date
GB2048684A true GB2048684A (en) 1980-12-17
GB2048684B GB2048684B (en) 1983-07-20

Family

ID=13138758

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8013935A Expired GB2048684B (en) 1979-05-07 1980-04-28 Sanitary towel

Country Status (7)

Country Link
JP (1) JPS55161520U (en)
FR (1) FR2455885B1 (en)
GB (1) GB2048684B (en)
HK (1) HK19785A (en)
MY (1) MY8500430A (en)
PH (1) PH17685A (en)
SG (1) SG8084G (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0127103A2 (en) * 1983-05-28 1984-12-05 Vereinigte Papierwerke AG Sanitary towel
GB2161384A (en) * 1984-03-20 1986-01-15 Procter & Gamble Shaped sanitary napkin with flaps
US4639254A (en) * 1985-10-24 1987-01-27 Kimberly-Clark Corporation Three-dimensional sanitary napkin having absorbent material contoured on the baffle side
EP0140474B1 (en) * 1983-10-07 1987-03-11 Kawasaki Steel Corporation Counter flow device for electroplating apparatus
US4687478A (en) * 1984-03-20 1987-08-18 The Procter & Gamble Company Shaped sanitary napkin with flaps
US4690681A (en) * 1986-01-23 1987-09-01 Kimberly-Clark Corporation Disposable leakproof catamenial device
GB2227174A (en) * 1988-11-28 1990-07-25 Kao Corp Sanitary article
US5429630A (en) * 1992-05-29 1995-07-04 Kimberly-Clark Corporation Absorbent article and a method of removing said article from an undergarment
US5489283A (en) * 1983-07-05 1996-02-06 The Procter & Gamble Company Shaped sanitary napkin with flaps
US5634916A (en) * 1993-06-03 1997-06-03 The Procter & Gamble Company Absorbent articles providing sustained dynamic fit
US5988386A (en) * 1998-03-20 1999-11-23 Morrow; Jacqueline M. Feminine hygiene storage unit
US6004893A (en) * 1983-07-05 1999-12-21 The Procter & Gamble Company Shaped sanitary napkin with flaps
DE3718076C2 (en) * 1986-05-28 2000-10-26 Kimberly Clark Co Menstrual and incontinence bandages
WO2000071068A1 (en) * 1999-05-20 2000-11-30 Yuhan-Kimberly Ltd. Absorbent pad with optimum shaped core
US6264784B1 (en) * 1991-09-27 2001-07-24 Johnson & Johnson Inc. Absorbent article with attached tabs and method and apparatus for making same
US6746435B1 (en) 1983-07-05 2004-06-08 The Procter & Gamble Company Shaped sanitary napkin with flaps
CN103598952A (en) * 2013-11-06 2014-02-26 大连欧派科技有限公司 Sanitary towel with rear leakage prevention and mild heating functions

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6025239Y2 (en) * 1983-05-31 1985-07-29 ユニ・チヤ−ム株式会社 sanitary napkins
CA1242301A (en) * 1984-02-21 1988-09-27 Patti J. Mokry Shaped napkin with elasticized edges
US5478336A (en) * 1987-09-25 1995-12-26 Kaysersberg, S.A. Sanitary or similar towel with fluid-impermeable side flaps
CA2219047C (en) 1991-10-01 2001-12-04 The Procter & Gamble Company Absorbent article having flaps and zones of differential extensibility
MX9206146A (en) 1992-09-30 1994-03-31 Kimberly Clark Co SANITARY TOWEL WITH GARMENT HOLDING PANELS
CA2201169C (en) 1994-10-28 2006-08-15 Duane Kenneth Zacharias Self-adhering absorbent article

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5215919B2 (en) * 1972-09-14 1977-05-04

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0127103A3 (en) * 1983-05-28 1985-04-10 Henkel Kommanditgesellschaft Auf Aktien Sanitary towel
EP0127103A2 (en) * 1983-05-28 1984-12-05 Vereinigte Papierwerke AG Sanitary towel
US5489283A (en) * 1983-07-05 1996-02-06 The Procter & Gamble Company Shaped sanitary napkin with flaps
US6746435B1 (en) 1983-07-05 2004-06-08 The Procter & Gamble Company Shaped sanitary napkin with flaps
US6004893A (en) * 1983-07-05 1999-12-21 The Procter & Gamble Company Shaped sanitary napkin with flaps
EP0140474B1 (en) * 1983-10-07 1987-03-11 Kawasaki Steel Corporation Counter flow device for electroplating apparatus
US4687478A (en) * 1984-03-20 1987-08-18 The Procter & Gamble Company Shaped sanitary napkin with flaps
GB2161384A (en) * 1984-03-20 1986-01-15 Procter & Gamble Shaped sanitary napkin with flaps
US4639254A (en) * 1985-10-24 1987-01-27 Kimberly-Clark Corporation Three-dimensional sanitary napkin having absorbent material contoured on the baffle side
US4690681A (en) * 1986-01-23 1987-09-01 Kimberly-Clark Corporation Disposable leakproof catamenial device
DE3718076C2 (en) * 1986-05-28 2000-10-26 Kimberly Clark Co Menstrual and incontinence bandages
GB2227174B (en) * 1988-11-28 1993-07-14 Kao Corp Sanitary article
GB2227174A (en) * 1988-11-28 1990-07-25 Kao Corp Sanitary article
US6264784B1 (en) * 1991-09-27 2001-07-24 Johnson & Johnson Inc. Absorbent article with attached tabs and method and apparatus for making same
US5429630A (en) * 1992-05-29 1995-07-04 Kimberly-Clark Corporation Absorbent article and a method of removing said article from an undergarment
US5634916A (en) * 1993-06-03 1997-06-03 The Procter & Gamble Company Absorbent articles providing sustained dynamic fit
US5643242A (en) * 1993-06-03 1997-07-01 The Procter & Gamble Company Absorbent articles providing sustained dynamic fit
US5988386A (en) * 1998-03-20 1999-11-23 Morrow; Jacqueline M. Feminine hygiene storage unit
WO2000071068A1 (en) * 1999-05-20 2000-11-30 Yuhan-Kimberly Ltd. Absorbent pad with optimum shaped core
CN103598952A (en) * 2013-11-06 2014-02-26 大连欧派科技有限公司 Sanitary towel with rear leakage prevention and mild heating functions

Also Published As

Publication number Publication date
SG8084G (en) 1985-04-04
HK19785A (en) 1985-03-22
FR2455885B1 (en) 1986-01-17
JPS55161520U (en) 1980-11-20
GB2048684B (en) 1983-07-20
MY8500430A (en) 1985-12-31
PH17685A (en) 1984-11-02
FR2455885A1 (en) 1980-12-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930428