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
  • A61F13/49007—Form-fitting, self-adjusting disposable diapers
• • 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
  • A61F13/476—Sanitary towels, incontinence pads or napkins characterised by encircling the crotch region of the undergarment
• • 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
  • A61F13/56—Supporting or fastening means
  • A61F13/58—Adhesive tab fastener elements

Definitions

• the present invention relates to an absorbent disposable article, such as a diaper or an incontinence guard, comprising an inner permeable enveloping layer, which when the article is in use, lies closest to the user's body, an outer impermeable enveloping layer and an absorbent body attached between the enveloping layers.
• Diapers and incontinence guards of so-called all-in-one type are nowadays usually fitted with leg and waist elastic in the form of elastic threads or elastic bands, which are attached to one or both of the two enveloping layers, which enclose the absorbent body in such products.
• This type of elastics increa ⁇ ses the diaper's safety against leakage and gives them a better fit.
• this elastic which is placed on the enve- loping layers around the absorbent body, can cause undesired deformation of the absorbent body, especially if is is thin, and also the threads in such elastic are attached in a pre- stretched state, which usually means that the elastic threads must be kept under tension during all the steps of the manu- facturing process of such a diaper, which makes its manufac ⁇ ture complicated.
• an all-in-one diaper which consists of enveloping layers of elastic material enclo- sing an absorbent body.
• the intention of this construction is to simplify manufacture.
• a disadvantage of such a diaper is that it is difficult to constructively ensure adequate elastic tension around the legs and waist of the user, as the elastic tension only depends on the way the diaper is applied by who- ever puts on the diaper user. There is therefore an obvious risk that such a diaper will be fitted too tight on the user.
• the present invention intends to solve the above mentioned problem without it being possible for the diaper or inconti ⁇ nence guard to be applied too tightly.
• an absorbent disposable article of the aforementioned kind cha ⁇ racterized by a piece of a thin, flexible material being atta ⁇ ched to the outer enveloping layer, the piece of material com- prising a pattern of elastic threads or elastic bands, being attached to the piece of material in a pretensioned state, and this piece of material extending in the article's length-wise direction past the back edges of the enveloping layers of the absorbent body; and which in the article's breadth-wise direc- tion in the back section has such an extension that when the article is placed on the user, the side edges of the piece of material are attachable to the corresponding side edge of the article's front section in order to give the applied article a pants-like configuration, whereby the pattern of elastic threads comprises threads which constitute leg and waist elas ⁇ tics.
• the piece of material can be given any shape desired, and therefore it is not necessary for the sidepieces of the enveloping layers encasing the absorbent body to be attached to each other when the diaper is being used, as is the case with conventional all-in-on diapers.
• the elastic threads being arranged in a separate piece of material gives a greater variation in size of the children for whom the diaper will give a good fit, compared with the conventional all-in-one diapers in which contraction of the elastic threads from the pretensioned, i.e. stretched, condition to the totally relaxed condition, is restricted by the absorbent body.
• the material in the material body does not have to be impermeable, which means that a soft and pleasant material with good air-exchanging properties can be selected for the material piece.
• Fig. 1 is a perspective view schematically showing the diaper according to the invention
• Fig. 2 is a plan view showing the diaper according to Fig. 1 with the elastic threads in a stretched state;
• Fig. 3 is a view similar to Fig. 2 showing a variation of the diaper.
• the diaper shown in the Figures comprises of a conventional T-diaper with an absorbent body 2 encased between two envelo ⁇ ping layers 3, 4.
• a material piece 5 is attached in a suitable way, for example by gluing, to the outer enveloping layer 4 of the T-diaper, in a narrow area close to the transverse edge of that area of the T-diaper, which contains the parts of the T-diaper forming the side sections and which on usage, form the diaper's front part, lying against the user's abdomen.
• the material piece 5 is symmetrically aligned relative to the T-diaper's l length ⁇ wise mid-line.
• the material piece 5 has, as apparent from Fig. 2, in the shown version the form of a cut-off triangle and contains two transverse elastic threads 6, which are extended parallel to the edge of the material piece opposite the attachment edge. Furthermore, an elastic thread 7 is extended along each side edge of the material piece. Elastic threads 6 and 7 are in a suitable way attached to the material piece in a pretensioned condition.
• the material piece 5 consists of two layers of non-woven material, between which threads 6 and 7 are arranged and attached at the same time as the layers were glued together. It is, of course, possible to form the material piece from a single material layer and attach the threads directly thereto.
• the threads 6,7 can also be attached in other ways than gluing, for example they can be sewn together.
• the material piece 5 also consists of two tape-flaps 8 inten- ded to join the side-parts of the material piece and the pro ⁇ truding side-parts of the T-diaper when the diaper is put on.
• Fig. 2 is shown the diaper according to the invention with elastic threads in the stretched, i.e. pretensioned, condi- tion
• Fig. 1 schematically shows the diaper with the elastic threads contracted, i.e. in an unstretched or relaxed condition.
• the contraction of the threads causes an extensive fold formation in the non-woven material. Due to the non-woven material's pliability permit ⁇ ting the elastic threads 6. 7 to be totally relaxed, the threads can return to their original length.
• the material piece 5 is thus pulled from its position as shown in Fig.
• the inventive diaper When the inventive diaper is put on, as formed by T-diaper 1 and material piece 5, it assumes a pants- like configuration and the threads 6 and 7 respectively, form the waist and leg elastic bands.
• the diaper according to the invention affords greater adaptability to different sizes of diaper users, as the active length of the elastic threads in material piece 5 is much greater than the active length of the threads in a conventional all-in-one diaper because the absorbent body in such a diaper prevents constriction of the threads, especially in those threads which form the elastic at the waist.
• the active length of the waist elastic is determined to a considerable degree by the constriction of the elastic threads in the side-pieces of the enveloping layers, lying outside the absorbent body.
• a diaper according to the invention therefore always permits better adjustment to different sizes of the diaper users than conventional all-in-one diapers on the condition that the material piece is dimensioned herefor. and that ade ⁇ quate values for the tension of the waist elastic are user " Furthermore, a diaper according to the. ir -ntion has, as jes the conventional all-in-one diaper, the a ⁇ vantage that maximum tensile strength can be easily determined by applying an ade ⁇ quate tension in the elastic threads.
• Fig. 3 shows a version which differs from that shown in Fig. 2 by the presence of extra le,ngth-wise elastic threads 9, 10 attached to material piece 5, which when the diaper is put on, are extended within the area of the absorbent body in order to press this against the user's body.
• These threads should have a suitable, lower tension than the elastic threads 6, 7.
• the embodiments as shown in the Figures can of course be modi ⁇ fied in several ways within the limits of the invention.
• the form of the material piece and the diaper to which it is attached can be varied. If the invention is app ⁇ lied to a rectangular diaper it is advisable to use a material with extended side-pieces at that end which is attached to the outside of the rectangular diaper, and it can also then be advisable to provide both sides with transverse elastic which extends from side to side, to further increase the effective length of the waist elastic.
• the deformation of the absorbent body or of the outer enveloping layers of the diaper which could occur due to the presence of the elastic in the attach ⁇ ment areas for the material piece, is small and has no effect on the functional characteristics of the diaper.

Landscapes

• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Biomedical Technology (AREA)
• Heart & Thoracic Surgery (AREA)
• Vascular Medicine (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Epidemiology (AREA)
• Animal Behavior & Ethology (AREA)
• Veterinary Medicine (AREA)
• Absorbent Articles And Supports Therefor (AREA)
• Orthopedics, Nursing, And Contraception (AREA)
• Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
• Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
• Analysing Materials By The Use Of Radiation (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20376512

Family Applications (1)

Country Status (12)

Cited By (1)

Citations (2)

Family Cites Families (2)

• 1989
  • 1989-07-07 SE SE8902470A patent/SE464110B/sv not_active IP Right Cessation
• 1990
  • 1990-06-18 DE DE69009060T patent/DE69009060T2/de not_active Expired - Fee Related
  • 1990-06-18 AT AT90910963T patent/ATE105704T1/de not_active IP Right Cessation
  • 1990-06-18 DK DK90910963.9T patent/DK0483212T3/da active
  • 1990-06-18 JP JP2510705A patent/JP2879077B2/ja not_active Expired - Lifetime
  • 1990-06-18 AU AU60743/90A patent/AU641929B2/en not_active Ceased
  • 1990-06-18 WO PCT/SE1990/000429 patent/WO1991000721A1/en active IP Right Grant
  • 1990-06-18 CA CA002062831A patent/CA2062831A1/en not_active Abandoned
  • 1990-06-18 ES ES90910963T patent/ES2053199T3/es not_active Expired - Lifetime
  • 1990-06-18 EP EP90910963A patent/EP0483212B1/en not_active Expired - Lifetime
• 1992
  • 1992-01-03 FI FI920029A patent/FI100299B/sv active
  • 1992-01-06 NO NO920078A patent/NO177483C/no unknown

Patent Citations (2)

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