CA2151437C - Absorbent padding - Google Patents

Absorbent padding

Info

Publication number
CA2151437C
CA2151437C CA002151437A CA2151437A CA2151437C CA 2151437 C CA2151437 C CA 2151437C CA 002151437 A CA002151437 A CA 002151437A CA 2151437 A CA2151437 A CA 2151437A CA 2151437 C CA2151437 C CA 2151437C
Authority
CA
Canada
Prior art keywords
padding
adhesive zones
section
width
absorbent
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 - Fee Related
Application number
CA002151437A
Other languages
French (fr)
Other versions
CA2151437A1 (en
Inventor
Satoshi Mizutani
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.)
Unicharm Corp
Original Assignee
Unicharm Corp
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 Unicharm Corp filed Critical Unicharm Corp
Publication of CA2151437A1 publication Critical patent/CA2151437A1/en
Application granted granted Critical
Publication of CA2151437C publication Critical patent/CA2151437C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56Supporting or fastening means
    • A61F13/5605Supporting or fastening means specially adapted for sanitary napkins or the like
    • A61F13/5611Supporting or fastening means specially adapted for sanitary napkins or the like using fastening strips, e.g. adhesive, on the undergarment-facing side

Abstract

An absorbent padding such as a menstruation pad, a incontinent pad and the like provided with a pair of adhesive zones along transversely opposite sides of said padding with a dimension as measured between outer side edges of said adhesive zones being gradually decreased to the minimum in a longitudinally intermediate section of said padding, and a force required for peeling off of said padding is adjusted to be maximum in a rear section of said padding.

Description

2151~37 ABSORBENT PADDING

The present invention relates to an absorbent padding, more particularly, to an absorbent padding suitable as a menstruation pad, an incontinent pad and the like.
Conventional absorbent padding such as said menstruation pads generally have a fastening means which is on the back thereof so that the padding may be fastened to the shorts by the fastening means and thereby held against the target position even during active movement of the wearer's body.
For example, Japanese Laid-Open Utility Model Application No.
1984-177425 discloses a technique according to which a transversal ~;r?~ion of a fastening means is gradually decreased longitudinally from at least one end toward the intermediate section of a menstruation pad. Such fastening means function in the same manner as said fastening zones.
If a relative position of a menstruation pad and the wearer's shorts shifts due to the movement of the wearer, the pad may be distorted or wrinkled, not only causing the wearer to feel uncomfortable but also causing the pad to partially protrude out from the shorts which may smear the clothing with menstrual discharge. Such problem likely occurs in the crotch zone of the shorts. The pad as disclosed in the 2151~3~

above-mentioned Application certainly proposes said fastening means but teaches no effective solution of such problem.
According to this well known technique, a fastening force of said fastening means is adjusted so as to facilitate the used pad smeared with menstrual discharge to be separated or peeled off from the shorts. However, in view of the fact that the shorts are often not in close contact with the wearer's body particularly over a region extending from the crotch to the hip and, additionally, the hip frequently rubs against the other objects such as a chair on which the wearer sits. Consequently, it is often difficult for the pad to be held between the shorts and said region of the wearer's body.
Specifically, an active movement of the wearer's body may shift the pad relative to the wearer's shorts and the shifted pad gives the wearer uncomfortable feeling particularly in the hip zone and smear the wearer's body as well as the clothing with menstrual discharge. Regarding this problem also, the above-identified Application teaches no effective solution.
In view of these problem left behind by the prior art, it is a principal object of the invention to solve them by an improved arrangement such that a dimension as measured between outer edges of adhesive zones as a fastening means 2lsl~37 provided along transversely opposite side edges of an absorbent padding is larger in longitudinally front and rear sections of the padding than in a longitudinally intermediate section of the padding and a force required for peeling off of the padding is higher in the rear section of the padding than in the other sections of the padding.
The object set forth above is achieved, according to the invention, by an absorbent padding comprising a liquid-permeable topsheet, a liquid-impermeable backsheet, a liquid-absorbent core disposed between these two sheets, and a fastening means provided on said backsheet for fastening said padding to shorts, wherein said fastening means comprises adhesive zones provided along transversely opposite sides of said padding with a dimension as measured between outer edges of the transversely opposite adhesive zones being larger in longitudinally front and rear sections of said padding than in a longitudinally intermediate section of said padding and a force required for peeling off of said padding is higher in said rear section than in said other sections.
The padding of such construction can be reliably fastened by the fastening means to the shorts not only around the crotch zone but also along side edges of leg-openings longitudinally in front and rear of said crotch zone. In 2151~37 this manner, the longitudinally rear section of the padding is sufficiently stabilized against the hip of the shorts to assure that even an active movement of the wearer's body causes no shifting of the padding and the padding having been smeared with menstrual discharge can be easily peeled off from the shorts, starting from the front section at which the adhesive force is relatively weak.
Fig. 1 is a plan view showing an embodiment of an absorbent padding as a menstruation pad according to the invention; and Fig. 2 is a view similar to Fig. 1 but showing another embodiment of said pad according to the invention.
Referring to Fig. 1, a menstruation pad 1 comprises a liquid-permeable topsheet 2, a liquid-impermeable backsheet 3 and a liquid-absorbent core 4 disposed between these two sheets 2, 3 wherein portions of the top- and backsheets 2, 3 extending outward beyond a peripheral edge of the core 4 are water-tightly bonded together along a bonding line 5. The back of the pad 1 destined to be put against shorts worn is provided with a pair of adhesive zones defining a fastening means, with hot melt adhesive applied on the backsheet 3 in the form of strips, ribbons or tapes.
Assumed that the pad 1 is longitudinally divided in a 2151~37 front section 11, an intermediate section 13 and a rear section 12, the adhesive zones 7, 8 longitudinally extend from the front section 11 to the rear section 12, describing circular arcs which are convex with respect to a center line (not shown) transversely dividing the pad 1 in right and left halves. A dimension "D" as measured between outer edges of the respective adhesive zones 7, 8 is relatively large in the front and rear sections 11, 12 and gradually decreased to the minimum in the intermediate section 13. A dimension "d" as measured between their inner edges is also gradually decreased to the minimum in the intermediate section 13. In each of the adhesive zones 7, 8, a width Wc in the rear section 12 is larger than widths WA~ W3 in the front and intermediate sections, respectively. Such configuration of the adhesive zones 7, 8 allows the pad 1 to be fastened to the shorts along right and left side edges around the legs of the wearer symmetrically with respect to the crotch zone. An area of the adhesive zones 7, 8 on the surface of the pad 1 destined to be put against the shorts worn may be dimensioned so as to be larger in the rear section 12 than in the front and intermediate sections 11, 13.
Referring to Fig. 2, adhesive zones along transversely opposite side edges of the pad 1 are respectively divided 2 ~ 3 7 into three straight zones 7A~ 7B~ 7C and 8A~ 8B~ 8c of the substantially same length "L", occupying said front, intermediate and rear sections 11, 13, 12 of the pad 1. The transversely opposite adhesive zones are spaced parallel from each other by width WA in the front section 11, W3 in the intermediate section 13 and Wc in the rear section 12, wherein Wc is larger than each of WA and WB.
The respective pairs of transversely opposite adhesive zones are spaced from each other by widths WA~ WB~ WC in front, intermediate and rear sections 11, 13, 12, respectively, wherein DA is substantially equal to DC but DB
is smaller than DA and DC Accordingly, a total area of the adhesive zones in larger in the rear section 12 than in the front and intermediate sections 11, 13, and a force required for separation of them correspondingly higher than in the front and intermediate sections 11, 13. Alternatively, it is possible to dimension all the adhesive zones to have uniform areas and to adjust an adhesive force of adhesive in the zones 7C~ 8C to be higher than in the zones 7A~ 7B~ 8A~ 8B SO
that a force required for separation in the rear section 12 may be adjusted to be higher than in the other sections.
The force required for separation in the rear section 12 assured by the arrangement exemplarily shown by Figs. 1 215I~37 and 2 is preferably at least 1.2 times of such force in the front section 11.
The pad 1 of the invention may be worn with the intermediate section 13 having the minimum dimension "D"
between the outer edges of the adhesive zones 7, 8 being positioned at the crotch zone and with the rear section 12 being positioned at the hip zone, respectively, of the shorts. The pad 1 is thus longitudinally direction-specified and preferably provided with suitable means which facilitates the wearer to identify this specified direction of the pad 1.
The pad 1 is commercially supplied to consumers with the adhesive zones 7, 8 protectively covered with separator papers. The adhesive may be applied to the zones 7, 8 to define planar extents, spots or intermittent lines. The dimension "d" as measured between the inner edges of the adhesive zones 7, 8 is preferably adjusted to lOmm or larger and more preferably to 15mm or larger in order to prevent the adhesive zones 7, 8 from being bonded together.
A padding such as the menstruation pad of the invention can be fastened to the shorts not only around the crotch zone but also along the side edges of the leg-openings in the proximity of the crotch zone without an apprehension that the padding might be distorted even during an active movement of 2151~37 the wearer's body, since the dimension as measured between the outer edges of the transversely opposite adhesive zones is larger in the longitudinally front and rear sections than in the longitudinally intermediate section of the napkin. In addition, the padding having been smeared with menstrual discharge can be easily peeled of from the shorts in the direction from the front to the rear section, since the force required for separation of the padding is adjusted to be higher in the rear section than in the front and intermediate sections of the napkin. Such feature of the invention effectively stabilizes the rear section of the padding against an active movement of the wearer's body or frequent sitting down and standing up relative to a chair. In this way, the padding of the invention is comfortable to wear and rarely smeares the wearer's body and clothing.

Claims (5)

1. An absorbent padding comprising a liquid-permeable topsheet, a liquid-impermeable backsheet and a liquid-absorbent core, and a fastening means provided on said backsheet for fastening said padding to shorts, wherein said fastening means comprise adhesive zones provided along transversely opposite sides of said padding with a dimension as measured between outer edges of the transversely opposite adhesive zones being larger in longitudinally front and rear sections of said padding than in a longitudinally intermediate section of said padding and wherein in each of said adhesive zones, a width thereof in the rear section is larger than widths thereof in the front and intermediate sections.
2. An absorbent padding according to Claim 1, wherein a force required for peeling off of said padding is higher in said rear section than in said rear and intermediate sections.
3. An absorbent padding according to Claim 1, wherein a dimension as measured between inner side edges of said adhesive zones is smaller in said intermediate section than in said front and rear sections.
4. An absorbent padding according to Claim 1, wherein said adhesive zones describes circular arcs which are convex with respect to a center line transversely dividing said padding.
5. An absorbent padding according to Claim 1, wherein said adhesive zones are respectively divided into three straight zones of the substantially same length occupying said front, intermediate and rear sections and said adhesive zones transversely opposite to each other are spaced parallel from each other by a first width in said front section, a second width in said intermediate section and a third width in said rear section, wherein said third width is larger than each of said first width and said second width.
CA002151437A 1994-06-14 1995-06-09 Absorbent padding Expired - Fee Related CA2151437C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6-131973 1994-06-14
JP6131973A JPH07328068A (en) 1994-06-14 1994-06-14 Sanitary napkin

Publications (2)

Publication Number Publication Date
CA2151437A1 CA2151437A1 (en) 1995-12-15
CA2151437C true CA2151437C (en) 1999-05-04

Family

ID=15070563

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002151437A Expired - Fee Related CA2151437C (en) 1994-06-14 1995-06-09 Absorbent padding

Country Status (9)

Country Link
EP (1) EP0689821B1 (en)
JP (1) JPH07328068A (en)
KR (1) KR0122116Y1 (en)
CN (1) CN2242680Y (en)
AU (1) AU687179B2 (en)
CA (1) CA2151437C (en)
DE (1) DE59507767D1 (en)
MY (1) MY130603A (en)
TW (1) TW294962U (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641849A1 (en) * 1996-10-10 1998-04-16 Peter Sczypior Pantiliner
EP0917866A1 (en) * 1997-11-12 1999-05-26 The Procter & Gamble Company Long sanitary napkins having stepped panty fastening adhesive
EP0916329A1 (en) * 1997-11-12 1999-05-19 The Procter & Gamble Company Integrated long absorbent article having stepped panty fastening adhesive
BR0004042B1 (en) * 2000-09-06 2009-08-11 Feminine toilet pad.
US7578812B2 (en) 2001-03-01 2009-08-25 Kimberly-Clark Worldwide, Inc. Pre-fastened absorbent article having simplified fastening features
JP4464586B2 (en) * 2001-07-31 2010-05-19 大王製紙株式会社 Absorbent packaging structure
US8211074B2 (en) 2002-02-22 2012-07-03 The Procter And Gamble Company Absorbent article including undergarment fastener adhesive having improved adhesive pattern
EP1574226B1 (en) 2004-03-09 2017-06-28 The Procter & Gamble Company Disposable absorbent articles with improved peel force on hydrophobic garment materials, particularly microfibre materials
JP4712533B2 (en) * 2005-11-11 2011-06-29 ユニ・チャーム株式会社 Absorbent articles
US20090062761A1 (en) * 2007-08-30 2009-03-05 Kimberly-Clark Worldwide, Inc. Attachment Pattern for Undergarment Attached Absorbent Articles
JP5306637B2 (en) * 2007-12-03 2013-10-02 花王株式会社 Absorbent articles
JP5095445B2 (en) * 2008-03-05 2012-12-12 大王製紙株式会社 Absorbent articles
JP5069639B2 (en) * 2008-08-20 2012-11-07 大王製紙株式会社 Absorbent pad and method for manufacturing the same
JP5623828B2 (en) * 2010-08-31 2014-11-12 大王製紙株式会社 Absorbent articles
JP6373092B2 (en) * 2014-06-30 2018-08-15 ユニ・チャーム株式会社 Absorbent articles
USD777910S1 (en) 2015-05-29 2017-01-31 Kimberly-Clark Worldwide, Inc. Absorbent article
USD772401S1 (en) 2015-05-29 2016-11-22 Kimberly-Clark Worldwide, Inc. Absorbent article
MX368019B (en) 2015-05-29 2019-09-12 Kimberly Clark Co Flexible absorbent article with a lobed absorbent layer.
USD789523S1 (en) 2015-05-29 2017-06-13 Kimberly-Clark Worldwide, Inc. Absorbent article
USD772402S1 (en) 2015-05-29 2016-11-22 Kimberly-Clark Worldwide, Inc. Absorbent article
USD772403S1 (en) 2015-05-29 2016-11-22 Kimberly-Clark Worldwide, Inc. Absorbent article

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930929A1 (en) * 1979-07-30 1981-02-26 Unilever Nv SANITARY BAND
ZA832789B (en) * 1982-05-10 1983-12-28 Kimberly Clark Co Tabless sanitary napkin
JPS59177425U (en) 1983-05-12 1984-11-27 花王株式会社 sanitary napkins
US4690680A (en) * 1986-06-27 1987-09-01 The Procter & Gamble Company Adhesive attachment means for absorbent articles
EP0548188B1 (en) * 1990-09-12 1995-08-09 The Procter & Gamble Company Shape and adhesive fastening means for an absorbent article

Also Published As

Publication number Publication date
KR0122116Y1 (en) 1998-07-15
AU2055595A (en) 1995-12-21
EP0689821B1 (en) 2000-02-09
TW294962U (en) 1997-01-01
AU687179B2 (en) 1998-02-19
KR960000456U (en) 1996-01-17
CA2151437A1 (en) 1995-12-15
EP0689821A2 (en) 1996-01-03
MY130603A (en) 2007-07-31
CN2242680Y (en) 1996-12-18
DE59507767D1 (en) 2000-03-16
JPH07328068A (en) 1995-12-19
EP0689821A3 (en) 1997-01-08

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Effective date: 20150609