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
  • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
  • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
  • A61F13/49406—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region
  • A61F13/49413—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being at the crotch region the edge leakage prevention means being an upstanding barrier
• • 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
  • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
  • A61F13/49007—Form-fitting, self-adjusting disposable diapers
  • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
  • A61F13/49017—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being located at the crotch region

Definitions

• TITLE Disposable absorbent article
• the present invention relates to a disposable absorbent article such as a disposable diaper according to the preamble of claim 1.
• Disposable absorbent articles are commonplace and have many uses. As examples of such articles can be named disposable diapers, bandages and sanitary napkins. The purpose of these articles is to absorb and retain discharged liquids, thereby preventing such liquids from soiling for example the clothing of the wearer of such articles.
• each longitudinal edge face of the diaper consists of the edge face of the facing sheet and the edge face of the backing sheet. This implies that the longitudinal edge faces of the diaper are not particularly smooth, which can lead to irritation of the skin of the wearer.
• Fig.l is a plan view of an absorbent article in accordance with the present invention having elasticized leg cuffs, the article being illustrated during a stage of the manufacturing process;
• Fig. 2 is a partial sectional perspective view taken substantially > along the line II-II of Fig. 1, though with the article in a finished condition.
• Fig. 3 is a sectional view along the same line as in Fig. 2, though showing one embodiment according to the invention of the edge portion of the absorbent article;
• Fig. 4 is a sectional view corresponding essentially to that of Fig. 3, though illustrating a second embodiment of the edge portion of the absorbent article according to the invention
• Fig. 5 is a sectional view corresponding essentially to that of Fig. 3, though illustrating a third embodiment of the edge portion of the absorbent article according to the invention.
• Fig. 6 is a sectional view corresponding essentially to that of Fig. 3, though illustrating a fourth embodiment of the edge portion of the absorbent article according to the invention.
• an absorbent article in the form of a disposable diaper is generally denoted by reference numeral 10.
• the diaper 10 is shown in Fig. 1 in a stage occupied by the diaper during its manufacture.
• reference numeral 12 denotes joining lines, for example glue lines or heat bonding lines, about which the diaper is gathered in a manner known per se to form a pair of inner cuffs 14 (Fig. 2) through which an elastic chord 16 runs. Due to the gathering of the diaper about the joining lines 12, the diaper adopts a generally hour glass shape with a narrow centrally disposed crotch portion 18 and wider waist portions 20, 22 at transverse end regions of the crotch portion.
• the diaper 10 is provided with prestretched elastic means 24 disposed along edge portions, preferably longitudinal edge portions 25, of the diaper.
• the waist portions 20, 22 may be provided with transversely extending elastic means 26, 28 respectively.
• fastening means are provided at the waist portions.
• the waist portion 20 which would normally be disposed at the front of the wearer may be provided with a pair of fastening means such as hook members 30, with each hook member 30 extending from the longitudinal edge portion 25 of the diaper.
• the fastening means may further comprise a belt 32 extending from the waist portion 22 which, during use, is normally disposed at the back of the wearer.
• the belt may be in two halves, with each half extending from the opposed longitudinal edge portions 25 of the diaper.
• the belt is made from a nonwoven material which acts as a loop fastener for the hook members 30.
• the diaper 10 has a generally hour glass shape and includes a facing sheet 34, a backing sheet 36 and an absorbent core 38 sandwiched between the facing and backing sheets 34, 36 respectively.
• the specific components used to form the illustrated diaper may be any of the types commonly used for such purposes.
• the facing sheet 34 may be any soft flexible liquid permeable material such as a nonwoven fibrous web having a basis weight of around 20 g/m 2 .
• the backing sheet 36 is made from a liquid impermeable material, such as a thin (for example 20 ⁇ ) plastic film of polyethylene, polypropylene, polyvinylchloride or the like.
• the absorbent core 38 may comprise wood pulp fibres, air-laid tissue, various superabsorbent materials, etc.
• prestretched elastic means 24 are disposed along the longitudinal edge portions 25 of the diaper.
• the elastic means 24 may be in the form of an elongate elastic band.
• the elastic band is relatively wide, for example between about 1 and 2 cm, preferably about 1.5 cm, so as to reduce the tendency for the leg cuff to mark the wearer.
• the elastic means 24 is surrounded by a pocket of nonwoven material, i.e. a nonwoven fibrous web, advantageously along each of the longitudinal edge portions 25 of the diaper.
• the pocket is formed by the facing sheet 34. More particularly, in Figs. 3 and 5 the facing sheet 34 presents a longitudinal free edge portion 40 which is folded under and adhered to the underside of the facing sheet to thereby form a pocket within which the elastic means 24 is accommodated, whilst in Fig. 4 the longitudinal free edge portion 40 of the facing sheet 34 is folded under and adhered to the backing sheet 36.
• the pocket advantageously extends along the entire longitudinal edge portion 25 of the diaper and the elastic band 24 is adhered to the material forming the pocket at those regions along the longitudinal edge portion 25 at which gathering of the facing sheet is desired, for example in the crotch portion 18 where the longitudinal edge portions 25 form leg cuffs (see for example Fig. 2) . Where no gathering is desired, for example in the waist portions 20, 22, the elastic band remains unadhered to the pocket.
• the backing sheet 36 presents a longitudinal free edge portion 42 which terminates short of the longitudinal edge portion of the diaper.
• the longitudinal edge portion 25 of the diaper consists essentially of nonwoven material which is soft on the skin and which has a tendency to absorb any perspiration which may form.
• the facing sheet 34 and the backing sheet 36 are adhered together at the longitudinal edges of the absorbent core, as denoted by reference numeral 44 in Figs. 3 to 6.
• the longitudinal free edge portion 42 of the backing sheet 36 overlaps the longitudinal free edge portion 40 of the facing sheet
• the longitudinal free edge portion 40 of the facing sheet overlaps the longitudinal free edge portion 42 of the backing sheet 36.
• the longitudinal free edge portion 42 of the backing sheet terminates in the vicinity of the elastic band 24.
• the longitudinal free edge portion 42 of the backing sheet 36 terminates in the vicinity of the longitudinal edge of the absorbent core 38, i.e. in the shown example in the vicinity of the elastic chord 16 of the inner cuff 14.
• the facing sheet 34 extends around the elastic band 24, with the longitudinal free edge portion 40 of the facing sheet 34 terminating in the vicinity of the longitudinal free edge portion 42 of the backing sheet 36.
• the leg cuff i.e. the region which extends from the longitudinal edge portion 25 of the diaper to the inner cuff 14, consists essentially of nonwoven material. This implies that the entire leg cuff is "breathable", thereby providing more comfort to the wearer.
• Fig. 6 an alternative embodiment of a breathable leg cuff is illustrated.
• both the facing sheet 34 and the backing sheet 36 terminate in the vicinity of the absorbent core 38.
• the leg cuff is formed in this case by an additional sheet 46 of nonwoven material.
• One lateral edge portion of the additional sheet 46 is inserted between the longitudinal free end portions 40, 42 of the facing sheet and backing sheet respectively.
• the remaining longitudinal free edge portion of the additional sheet 46 is folded under and adhered to the underside of the additional sheet to thereby form the pocket for the elastic band 24.
• the material of the additional sheet 46 has a basis weight greater than that of the facing sheet 34, for example in the order of 25 to 40 g/m 2 , preferably about 35 g/m 2 .

Landscapes

• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Biomedical Technology (AREA)
• Heart & Thoracic Surgery (AREA)
• Vascular Medicine (AREA)
• Epidemiology (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Absorbent Articles And Supports Therefor (AREA)
• Orthopedics, Nursing, And Contraception (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20391734

Family Applications (1)

Country Status (16)

Cited By (1)

Families Citing this family (6)

Citations (4)

Family Cites Families (1)

• 1993
  • 1993-11-15 SE SE9303747A patent/SE9303747L/ not_active Application Discontinuation
• 1994
  • 1994-11-11 CO CO94051758A patent/CO4340605A1/es unknown
  • 1994-11-14 JP JP7514382A patent/JPH09504977A/ja active Pending
  • 1994-11-14 WO PCT/SE1994/001065 patent/WO1995013771A1/en not_active Application Discontinuation
  • 1994-11-14 AU AU10801/95A patent/AU1080195A/en not_active Abandoned
  • 1994-11-14 HU HU9601184A patent/HU9601184D0/hu unknown
  • 1994-11-14 PE PE1994254747A patent/PE39795A1/es not_active Application Discontinuation
  • 1994-11-14 CA CA002175925A patent/CA2175925A1/en not_active Abandoned
  • 1994-11-14 SK SK603-96A patent/SK282534B6/sk unknown
  • 1994-11-14 PL PL94314422A patent/PL314422A1/xx unknown
  • 1994-11-14 EP EP95901652A patent/EP0729328A1/en not_active Withdrawn
  • 1994-11-14 GB GB9422949A patent/GB2283663A/en not_active Withdrawn
  • 1994-11-14 NZ NZ276514A patent/NZ276514A/en unknown
  • 1994-11-14 CZ CZ961388A patent/CZ138896A3/cs unknown
• 1996
  • 1996-05-14 FI FI962040A patent/FI962040A/fi not_active Application Discontinuation
  • 1996-05-14 NO NO961974A patent/NO961974L/no unknown

Patent Citations (4)

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