FR2699812A1 - Disposable and absorbent hygienic pad - Google Patents

Disposable and absorbent hygienic pad Download PDF

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Publication number
FR2699812A1
FR2699812A1 FR9216017A FR9216017A FR2699812A1 FR 2699812 A1 FR2699812 A1 FR 2699812A1 FR 9216017 A FR9216017 A FR 9216017A FR 9216017 A FR9216017 A FR 9216017A FR 2699812 A1 FR2699812 A1 FR 2699812A1
Authority
FR
France
Prior art keywords
article
longitudinal
absorbent pad
characterized
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.)
Withdrawn
Application number
FR9216017A
Other languages
French (fr)
Inventor
Martin Francoise
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.)
Peaudouce SA
Original Assignee
Peaudouce SA
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 Peaudouce SA filed Critical Peaudouce SA
Priority to FR9216017A priority Critical patent/FR2699812A1/en
Publication of FR2699812A1 publication Critical patent/FR2699812A1/en
Application status is Withdrawn legal-status Critical

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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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49406Absorbent 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
    • A61F13/49413Absorbent 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
    • A61F13/4942Absorbent 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 the barrier not being integral with the top- or back-sheet
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49406Absorbent 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
    • A61F13/49413Absorbent 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
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49473Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means having a continuous closed form, e.g. circle, ellipse, rectangle
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    • 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
    • A61F13/45Absorbent 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
    • A61F2013/4512Absorbent 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 folded in special shape during use
    • A61F2013/4537Absorbent 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 folded in special shape during use with aeration ducts
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    • 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
    • A61F13/45Absorbent 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
    • A61F2013/4512Absorbent 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 folded in special shape during use
    • A61F2013/4543Absorbent 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 folded in special shape during use with a special transverse section
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    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007Form-fitting, self-adjusting disposable diapers
    • A61F13/49009Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/4902Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
    • A61F2013/49025Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material having multiple elastic strands
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007Form-fitting, self-adjusting disposable diapers
    • A61F13/49009Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/4902Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
    • A61F2013/49031Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material being elastic in longitudinal direction
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F2013/49068Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline
    • A61F2013/49076Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline as "I"-shaped
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F13/49406Absorbent 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
    • A61F13/49413Absorbent 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
    • A61F2013/4944Absorbent 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 having multiple barriers
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A61F2013/4948Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being elastic
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • A61F2013/4966Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs with intentionally damp topsheet
    • 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
    • A61F13/51Absorbent 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
    • A61F2013/51002Absorbent 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 with special fibres
    • A61F2013/51023Absorbent 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 with special fibres being polymeric fibres
    • A61F2013/5103Absorbent 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 with special fibres being polymeric fibres being hydrophobic
    • AHUMAN NECESSITIES
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    • 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
    • A61F13/51Absorbent 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
    • A61F13/514Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51401Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
    • A61F2013/51409Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
    • AHUMAN NECESSITIES
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    • A61F13/51Absorbent 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
    • A61F13/514Backsheet, i.e. the impermeable cover or layer furthest from the skin
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    • A61F2013/51409Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
    • A61F2013/51411Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film being impervious to fluids but not for air or vapours
    • A61F2013/51413Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film being impervious to fluids but not for air or vapours with macroscopic openings
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    • A61F2013/51409Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
    • A61F2013/51411Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film being impervious to fluids but not for air or vapours
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    • A61F2013/51409Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
    • A61F2013/51411Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film being impervious to fluids but not for air or vapours
    • A61F2013/51421Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film being impervious to fluids but not for air or vapours only in special places

Abstract

The pad, e.g., a nappy, comprises a layer (3) of an absorbent material on an impermeable backing layer (2), shaped to form a central section (8) which goes between the legs, and two ends (9,10) forming front and rear panels, equipped with waist fixings (14). The absorbent layer (3) is basically rectangular in shape, while the backing layer has four aeration apertures (15) formed by zones which are impermeable to liquids but permeable to gases two in the front panel and two in the rear one. The nappy also has two lengthwise air circulation strips, made from a moisture resistant and gas-permeable material, which pass along the sides of the absorbent pad from one end to the other and link the aeration apertures on the same side.

Description

ARTICLE D'HYGIENE ABSORBANT JETABLE EQUIPE DE TUNNELS D'AERATION DISPOSABLE ABSORBENT ARTICLE HYGIENE TUNNEL TEAM VENT
La présente invention concerne un article d'hygiène absorbant jetable, notamment une couche-culotte jetable pour enfant en bas âge ou pour incontinent adulte, qui comporte un coussin absorbant disposé sur une feuille extérieure de support, imperméable aux liquides. The present invention relates to a disposable absorbent hygiene article, especially a disposable diaper for infant or adult incontinence, comprising an absorbent pad disposed on an outer support sheet, impermeable to liquids. Elle concerne plus particulièrement un article d'hygiène perfectionné permettant un bon échange gazeux entre l'intérieur et l'extérieur, lorsque ledit article est positionné sur l'utilisateur. It relates more particularly an improved sanitary article for a good gas exchange between the inside and the outside when said article is positioned on the user.

Les articles d'hygiène de ce type sont conçus pour assurer une bonne étanchéité au niveau des cuisses de l'utilisateur, de manière à éviter les risques de fuite d'urine le long de la jambe. The hygiene articles of this type are designed to ensure a good seal at the thighs of the user, so as to avoid the risk of leakage of urine along the leg.

Cependant cela se traduit par des risques d'irritation cutanée pour l'utilisateur là où le coussin absorbant mouillé est continuellement en contact avec la peau de celui-ci. However this means the risk of skin irritation to the user where the wetted absorbent pad is continuously in contact with the skin it.

Pour remédier à cet inconvénient, on a déjà proposé d'utiliser comme feuille extérieure de support un matériau qui soit non seulement imperméable aux liquides mais également perméable à la vapeur. To remedy this drawback, it has already been proposed to use as outer sheet of a support material which is not only liquid impermeable, but also vapor permeable. Ainsi grâce à cette perméabilité, il est possible d'obtenir un échange gazeux entre l'intérieur et l'extérieur de l'article d'hygiène et donc une diminution de la teneur en humidité du milieu ambiant régnant à l'intérieur dudit article. Thus, thanks to this permeability, it is possible to obtain a gas exchange between the inside and outside of the hygiene article and therefore a reduction in the moisture content of the environment prevailing within said article.

Cette solution radicale présente toutefois un inconvénient majeur à savoir le prix d'un tel matériau qui est à la fois imperméable aux liquides et perméable à la vapeur. This radical solution however has a major drawback namely the price of such a material that is both liquid impermeable and vapor permeable.

Le document EP O 109 126 propose une solution simplifiée permettant d'assurer l'échange gazeux entre l'intérieur et l'extérieur de l'article absorbant. EP O 109 126 provides a simplified solution to ensure gaseous exchange between the inside and the outside of the absorbent article. Dans cette solution, seuls les rabats d'étanchéité sont plus perméables à la vapeur par unité de surface que la feuille support proprement dite. In this solution, only the sealing flaps are more permeable to vapor per unit area than the actual backsheet. Ces rabats d'étanchéité consistent dans les portions de l'article qui enveloppent et sont en contact avec la jambe de l'utilisateur normalement dans la région des cuisses de celui-ci. These sealing flaps consist of the portions of the article which surround and are in contact with the leg of the user normally in the thigh region thereof.

Le document US 4 887 602 propose une autre solution simplifiée permettant d'assurer cet échange gazeux. US 4,887,602 suggests another simple solution to ensure that gas exchange. Selon cette solution, l'article présente des orifices de ventilation qui sont localisés dans les zones situées entre le coussin absorbant et les lisières latérales et transversales de l'article. Under this alternative, the article has vent holes that are located in the areas between the absorbent pad and the lateral and transverse edges of the article.

Cependant, selon le demandeur, dans chacune de ces solutions connues, l'échange gazeux est imparfait, étant limité à une zone précise de l'article. However, according to the applicant, in each of these known solutions, gas exchange is imperfect, being limited to a specific area of ​​the article.

Le but que s'est fixé le demandeur est de proposer un article d'hygiène absorbant jetable, notamment une couche-culotte, qui soit respirable, c'est à dire qui permette un bon échange gazeux (vapeur d'eau et air) entre l'intérieur et l'extérieur de l'article, et qui ne présente pas l'inconvénient précité. The goal that has set the applicant is to provide a disposable absorbent article of hygiene, especially a diaper, that is breathable, ie enabling a good gas exchange (steam and air) between the inside and outside of the article, and which does not present the aforementioned drawback. Plus précisément le demandeur recherche un article qui améliore encore le confort de l'usager. Specifically the applicant seeks an article which further enhances the comfort of the user.

Ce but est parfaitement atteint par l'article d'hygiène absorbant jetable, notamment couche-culotte, selon l'invention. This object is achieved by the disposable absorbent article of hygiene, including diaper, according to the invention.

Il s'agit d'un article qui comporte de manière connue un coussin absorbant disposé sur une feuille extérieure support qui est imperméable aux liquides ; This is an article which comprises in known manner an absorbent pad disposed on an outer support sheet which is liquid impermeable; de plus ledit article est constitué dans le sens longitudinal d'une partie centrale qui correspond à la zone d'entre-jambes et de deux parties extrêmes l'une avant et l'autre arrière qui correspondent aux zones de positionnement et de fixation autour de la taille de l'usager. more said article is formed in the longitudinal direction a central part which corresponds to the crotch zone and two end portions one front and one back that match the positioning areas and fastening around the size of the user.

De manière caractéristique selon l'invention, le coussin absorbant étant de forme sensiblement rectangulaire, la feuille extérieure de support comporte quatre ouvertures d'aération, qui consistent en quatre zones imperméables aux liquides et perméables aux gaz, deux dans la partie extrême avant et deux dans la partie extrême arrière, lesdites ouvertures étant situées de part et d'autre et au moins le long du coussin absorbant ; Typically according to the invention, the absorbent pad being substantially rectangular in shape, the outer backing sheet comprises four ventilation openings, which consist of four zones impermeable to liquids and permeable to gases, two in the front end portion and two in the rear end portion, said openings being located on both sides and at least along the absorbent pad; de plus l'article comporte a) deux bandes longitudinales de circulation d'air, réalisées dans un matériau hydrophobe et perméable aux gaz, chaque bande étant fixée par son premier bord longitudinal au droit du flanc longitudinal du coussin absorbant, par son second bord longitudinal et par ses deux bords transversaux aux contours extérieurs de la feuille support en sorte qu'elle recouvre vers ses deux extrémités les deux ouvertures d'aération situées du même côté du coussin absorbant, b) et des moyens de déformation desdites bandes longitudinales de circulation d'air aptes à déformer celles-ci en sorte qu'elles forment, lorsque l'article est positionné sur l'usager, deux tunnels internes raccordés sur les ouvertures d'aération. over the article comprises a) two longitudinal strips of air circulation, made of a hydrophobic gas-permeable material, each strip being attached by its first longitudinal edge to the right longitudinal edge of the absorbent pad, by its second longitudinal edge and by two transverse edges to the outer contours of the support sheet so that it covers both ends to the two vent openings located on the same side of the absorbent pad, b) and means for deforming said longitudinal strips of circulation air apt to deform them so that they form, when the article is positioned on the user, two internal tunnels connected to the ventilation openings.

Ainsi contrairement aux modes de réalisation connus, le principe de l'invention repose sur une captation de la vapeur émise à proximité immédiate et tout le long du coussin absorbant et sur son évacuation grâce à un tunnel d'aération qui débouche dans les parties extrêmes de l'article. Thus unlike the known embodiments, the principle of the invention relies on a steam uptake emitted in the immediate vicinity and along the absorbent pad and on its discharge through a nozzle duct which opens into the end portions of Article.

Les ouvertures d'aération sont, dans la feuille extérieure de support, des zones qui sont à la fois imperméables aux liquides et perméables aux gaz. The ventilation apertures are in the outer backing sheet, areas which are both liquid impermeable and gas permeable. Elles peuvent être obtenues de manières différentes. They can be obtained in different ways.

Selon une première variante chaque ouverture d'aération est obtenue par réalisation dans la feuille extérieure support d'une découpe et recouvrement de ladite découpe par un matériau imperméable aux liquides ou hydrophobe et perméable à l'air. According to a first variant each ventilation opening is obtained by forming in the outer backing sheet of a blank and covering said cutout by a liquid impervious material or a hydrophobic and air permeable.

Ce matériau de recouvrement peut être notamment un non-tissé hydrophobe, une mousse hydrophobe ou un film microporeux hydrophobe. This covering material may especially be a hydrophobic nonwoven fabric, a hydrophobic foam or a microporous film hydrophobic.

Selon une seconde variante l'ouverture d'aération est obtenue par des perforations localisées de petit diamètre dans la feuille extérieure support. In a second variant the ventilation opening is obtained by localized small diameter perforations in the outer sheet support.

De préférence les moyens de déformation d'une bande longitudinale de circulation d'air consistent en un élément élastique qui est placé sous ladite bande longitudinale et qui est fixé à l'article dans les parties extrêmes et au-delà des orifices d'aération, à l'état tendu lorsque ledit article est à plat. Preferably the deforming means of a longitudinal strip for circulating air consist of an elastic element which is placed under said longitudinal strip and which is fixed to the article in the end portions and beyond the ventilation openings, in the stretched state when said article is flat. Ainsi lorsque l'article est mis en forme, dans la position qu'il a sur l'usager, la rétraction de l'élément élastique entraîne le soulèvement de la bande longitudinale correspondante au-dessus de la feuille support et dégage ainsi un volume intérieur constituant le tunnel interne d'aération. Thus, when the article is shaped, in its position on the user, the retraction of the elastic member causes the lifting of the corresponding longitudinal band on top of the backsheet and thus clears an interior volume constituting the inner nozzle duct.

Avantageusement chaque bande longitudinale de circulation d'air a, dans la partie centrale, une largeur qui est comprise entre deux et quatre fois la largeur d'une ouverture d'aération, le bord longitudinal intérieur de ladite bande étant fixé selon une ligne passant à proximité immédiate des deux ouvertures d'aération situées d'un même côté du coussin absorbant. Advantageously, each longitudinal strip of air circulation in the central part, a width which is between two and four times the width of a vent opening, the inner longitudinal edge of said strip being attached along a line passing immediate vicinity of the two vent openings located on the same side of the absorbent pad. Grâce à cette disposition particulière, il est possible, lors de la fabrication de l'article d'hygiène selon l'invention, de former un pli longitudinal dans la bande de circulation, ce pli étant situé, dans la partie centrale, environ aux deux tiers de la largeur de ladite bande et l'élément élastique de déformation étant fixé à l'état tendu dans le pli ainsi formé. With this particular arrangement, it is possible, during the manufacture of the sanitary article according to the invention, forming a longitudinal fold in the traffic band, this fold being located in the central part, approximately two third of the width of said web and the elastic deformation element being secured in the stretched state in the fold thus formed.

S'agissant d'un article qui comporte de manière connue d'une part une feuille intérieure perméable aux liquides qui recouvre le coussin absorbant et qui est fixée sur la feuille support et d'autre part des éléments élastiques d'entre-jambe qui sont disposés longitudinalement vers les deux bords extérieurs de la partie centrale, de préférence selon l'invention, chaque bande longitudinale de circulation d'air est fixée d'une part sur la feuille intérieure au droit du bord extérieur du coussin absorbant et d'autre part sur la feuille support, en particulier au-dessus des éléments élastiques d'entre-jambe .Le fait que la bande de circulation d'air soit fixée le long d'un de ses bords longitudinaux au droit du bord extérieur du coussin absorbant permet d'augmenter l'effet de tunnel dans la mesure où les lignes de fixation des deux bords de la bande de ventilation ne sont pas situées dans le même plan. In the case of an article which comprises in known manner on the one hand an inner liquid-permeable sheet covering the absorbent pad and is secured on the carrier sheet and on the other hand resilient members crotch which are arranged longitudinally towards the two outer edges of the central portion, preferably according to the invention, each longitudinal strip air flow is attached on the one hand on the inner sheet to the right of the outer edge of the absorbent pad and on the other hand on the carrier sheet, in particular above the elastic members crotch .The fact that the air circulation strip is fixed along one of its longitudinal edges to the right of the outer edge of the absorbent pad makes it possible increase the tunneling to the extent that the lines of attachment of the two edges of the ventilation strip are not located in the same plane.

S'agissant d'un article d'hygiène absorbant jetable ayant de manière connue une forme en sablier avec deux échancrures latérales au niveau de la partie centrale, de préférence selon l'invention chaque bande longitudinale de circulation d'air a le même contour extérieur en forme de demi-sablier que la partie longitudinale de la feuille support s'étendant au-delà du coussin absorbant et elle est fixée sur leurs contours extérieurs communs. In the case of a disposable absorbent hygiene article having a known manner an hourglass shape with two lateral notches at the central portion, preferably according to the invention, each longitudinal strip air flow has the same outer contour shaped half hourglass that the longitudinal portion of the backsheet extending beyond the absorbent pad and is secured on their common outer contours.

La présente invention sera mieux comprise à la lecture de la description qui va être faite d'un exemple de réalisation d'une couche-culotte à tunnels d'aération, illustrée par le dessin annexé dans lequel - la figure 1 est une représentation de la couche-culotte à deux tunnels d'aération à l'état tendu selon une vue en plan, - et la figure 2 est une demi-vue en coupe selon l'axe Il Il de la figure 1. The present invention will be better understood on reading the description which will be given of an embodiment of a diaper in ventilation tunnels, illustrated in the accompanying drawings wherein - Figure 1 is a representation of the diaper to two ventilation tunnels to the tensioned state in a plan view, - and Figure 2 is a sectional half view along the axis It II of Figure 1.

La couche-culotte 1 qui est illustrée à la figure 1 se compose de manière connue d'une feuille extérieure de support 2, d'un coussin absorbant 3 et d'une feuille de couverture 4, recouvrant le coussin absorbant 3 et assurant sa fixation sur la feuille de support 2. The diaper 1 is illustrated in Figure 1 comprises in known manner an outer sheet support 2, an absorbent pad 3 and a covering sheet 4, covering the absorbent pad 3 and ensuring its fixing on the backing sheet 2.

La feuille de support 2 est imperméable aux liquides. The support sheet 2 is liquid-impermeable. Il s'agit par exemple d'un film imperméable en matière plastique tel que du polyéthylène. This is for example an impermeable plastic film such as polyethylene. Elle peut également être formée de façon composite d'un film imperméable en matière plastique 5, notamment du polyéthylène, et d'une feuille en non-tissé 6. Dans l'exemple représenté sur la figure 2, c'est le non-tissé 6 qui est tourné vers l'intérieur de la couche-culotte 1, mais il peut tout aussi bien s'agir de la disposition inverse. It can also be formed in a composite manner of an impermeable plastic film 5, in particular polyethylene, and a nonwoven fabric sheet 6. In the example shown in Figure 2, the nonwoven 6 which is turned inwardly of the diaper 1, but it can equally well be the reverse arrangement.

Le coussin absorbant 3 a une forme sensiblement rectangulaire pour les raisons qui seront explicitées ci-après. The absorbent pad 3 has a substantially rectangular shape for reasons which will be explained below.

Il est composé par exemple de pâte fluff de cellulose, contenant éventuellement un polymère super absorbant. It is composed for example of cellulose fluff pulp, optionally containing a super absorbent polymer.

Le coussin absorbant 3 est collé sur la feuille de support 2 et recouvert de la feuille de couverture 4 qui est perméable aux liquides, s'agissant par exemple d'un voile de non-tissé. The absorbent pad 3 is adhered to the backing sheet 2 and covered with the cover sheet 4 which is permeable to liquids, as regards for example a web of nonwoven.

La feuille de support 2 a une forme générale en sablier, avec deux échancrures 7, latérales et opposées, délimitant dans le sens longitudinal de la couche-culotte 1 une partie centrale 8 et deux parties extrêmes 9 et 10. La partie centrale 8 correspond à la zone d'entre-jambe, c'est-à-dire la zone de la couche-culotte 1 qui sera directement en contact avec la jambe de l'utilisateur au niveau de la cuisse ; The backing sheet 2 has a generally hourglass shape, with two notches 7, lateral and opposite, delimiting in the longitudinal direction of the diaper 1 a central portion 8 and two end portions 9 and 10. The central portion 8 corresponds to the crotch area, that is to say the region of the diaper 1 that shall be in direct contact with the leg of the user at the thigh; les parties extrêmes 9, 10 correspondent aux zones de la couche-culotte 1 servant au positionnement et à la fixation de celle-ci autour de la taille de l'usager. the end portions 9, 10 correspond to the zones of the diaper 1 for positioning and fixing thereof around the waist of the user. La partie extrême 9, qui est située vers le haut de la figure 1, correspond à la partie avant de la couche-culotte du fait qu'elle se trouve sur le devant de l'usager, tandis que l'autre partie extrême 10, dans le bas de la figure 1 correspond à la partie arrière puisqu'elle se trouve dans le dos de l'usager. The end part 9 which is located towards the top of Figure 1, corresponds to the front part of the diaper because it is located on the front of the user, while the other end portion 10, at the bottom of Figure 1 corresponds to the rear part since it is located in the back of the user.

La partie centrale 8 a une largeur qui est inférieure à celle des deux parties extrêmes avant et arrière 9, 10. The central portion 8 has a width which is smaller than the two extreme front and rear portions 9, 10.

La structure de la feuille extérieure de support 2 peut présenter différentes variantes de réalisation lorsqu'elle est formée de façon composite d'un film imperméable 5 et d'un non-tissé 6. Par exemple le film imperméable 5 peut être un film rectangulaire ayant la même largeur que la partie centrale 8. Par exemple la feuille en non-tissé 6 peut être formée de deux bandes, chacune d'elle étant collée par l'un de ses bords longitudinaux sur le bord correspondant du film de matière plastique, tandis que son autre bord présente une échancrure 7, comme représentée à la figure 1. Dans ces deux exemples les parties de la feuille de support 2 qui se trouvent vers les quatre coins de la couche-culotte 1, dans les parties extrêmes 9 et 10 de celles-ci, sont constituées uniquement de la feuille en non-tissé 6. The structure of the outer sheet support 2 may have different embodiments as it is formed of composite like a waterproof film 5 and a nonwoven 6. For example, the impermeable film 5 may be a rectangular film having the same width as the central portion 8. for example, the nonwoven fabric sheet 6 may be formed of two bands, each of which is adhered by one of its longitudinal edges to the corresponding edge of the plastic film, while that its other edge has a recess 7 as shown in Figure 1. in both these examples the parts of the support sheet 2 that lie towards the four corners of the diaper 1, the end portions 9 and 10 of thereof, consist only of the sheet nonwoven 6.

La feuille de couverture 4 a la même longueur que la feuille de support 2, mais présente une largeur plus faible, qui est légèrement supérieure à celle du coussin absorbant 3 en sorte de recouvrir le dessus 11 ainsi que les deux flancs latéraux 12 du coussin absorbant 3 et d'être collée longitudinalement sur la feuille support 2 le long dudit coussin absorbant 3. The cover sheet 4 has the same length as the support sheet 2, but has a smaller width, which is slightly higher than that of the absorbent 3 ensure cushion cover top 11 and the two lateral flanks 12 of the absorbent pad 3 and be glued longitudinally on the carrier sheet 2 along said absorbent pad 3.

La feuille de support 2 et la feuille de couverture 4 sont réunies par collage à leurs extrémités longitudinales, au niveau des parties extrêmes 9 et 10 de la couche-culotte 1. The support sheet 2 and the cover sheet 4 are stuck together at their longitudinal ends, at the end portions 9 and 10 of the diaper 1.

Cette dernière comporte également des éléments élastiques longitudinaux 13 qui sont fixés à l'état tendu à la feuille de support 2, au moins dans la partie centrale 8. The latter also has longitudinal elastic members 13 which are attached to the tensioned state to the supporting sheet 2, at least in the central part 8.

Deux attaches adhésives 14 sont fixées latéralement, de part et d'autre de la partie extrême arrière 10. Elles sont destinées à être appliquées sur la partie extrême avant 9, une fois que la couche-culotte 1 est mise en position sur l'usager. Two adhesive fastenings 14 are fixed laterally on either side of the rear end portion 10. They are intended to be applied to the end portion 9, once the diaper 1 is placed in position on the user .

De manière caractéristique selon l'invention la feuille de support 2 présente dans les parties extrêmes 9, 10 de la couche-culotte 1 quatre zones perméables aux gaz dénommées ouvertures d'aération 15. Celles-ci sont disposées symétriquement par rapport à l'axe longitudinal DD' de la couche-culotte 1, de part et d'autre du coussin absorbant 3. Typically according to the invention the support 2 has sheet in the end portions 9, 10 of the diaper 1 four zones gas permeable referred vents 15. These are arranged symmetrically with respect to the axis longitudinal DD 'of the diaper 1, on either side of the absorbent pad 3.

La particularité de ces quatre ouvertures d'aération 15 est d'être à la fois imperméables aux liquides et perméables aux gaz (air et vapeur d'eau). The particularity of these four ventilation openings 15 is to be both impervious to liquids and permeable to gases (air and steam). Ceci peut être obtenu de différentes manières. This can be achieved in different ways. Selon une première manière l'ouverture d'aération 15 résulte d'une découpe formée dans la feuille de support 2 et du recouvrement de ladite découpe par un matériau hydrophobe ou imperméable aux liquides mais perméable aux gaz tel qu'une mousse hydrophobe ou un non-tissé hydrophobe ou un film microporeux hydrophobe ; According to a first way the vent opening 15 is caused by a cutout formed in the carrier sheet 2 and the recovery of said cutting by a hydrophobic or liquid-impermeable material but permeable to gas such that a hydrophobic foam or a non -woven hydrophobic or a hydrophobic microporous film; il peut notament s'agir d'un non-tissé microporeux à base de microfibres, du type melt-blown ou spun. notament it may be a non-woven microporous made of microfibres, the melt-blown or spun type.

Selon une seconde manière, l'ouverture d'aération 15 résulte d'une série de perforations de petits diamètres, réalisées localement dans la zone correspondant à ladite ouverture d'aération 15. Les perforations en question auront un diamètre suffisamment important pour permettre l'échange gazeux, mais suffisamment faible pour empêcher le passage de liquide. According to a second way, the vent aperture 15 results from a series of holes of small diameters, carried out locally in the area corresponding to said vent aperture 15. The perforations in question will have a sufficiently large diameter to allow the gas exchange but small enough to prevent the passage of liquid.

De manière caractéristique selon l'invention les deux ouvertures d'aération 15 a et 15 b, situées d'un même coté du coussin absorbant 3 respectivement dans la partie extrême avant 9 pour 15 a et dans la partie extrême arrière 10 pour 15 b sont reliées par un tunnel interne d'aération 16. Il en est de même pour les deux autres ouvertures d'aération qui sont également reliées par un second tunnel d'aération 16. Typically according to the invention the two ventilation openings 15a and 15b located on the same side of the absorbent pad 3, respectively in the front end portion 9 and 15 has in the rear end portion 10 b are 15 connected by an internal tunnel vent 16. It is the same for the other two vents which are also connected by a second tunnel ventilation 16.

Chacun des tunnels d'aération 16 est constitué grâce à une bande longitudinale 17 d'un matériau hydrophobe et perméable aux gaz. Each of the ventilation tunnel 16 is constituted by a longitudinal strip 17 of a hydrophobic gas-permeable material. Il s'agit par exemple d'un voile de non-tissé hydrophobe. This is such a web of hydrophobic nonwoven. Les deux bandes longitudinales 17 dites de circulation d'air sont fixées symétriquement au-dessus de la feuille support 2 de part et d'autre et le long du coussin absorbant 3 en sorte que chacune d'elles recouvrent vers ses extrémités longitudinales d'une part l'ouverture d'aération avant 15 a et d'autre part l'ouverture d'aération arrière 15 b. The two longitudinal strips 17 of said air flow are fixed symmetrically over the 2 part backsheet side and along the absorbent pad 3 so that each cover towards its longitudinal ends a Apart from the ventilation opening 15 has front and the other opening rear air 15 b.

Dans un mode précis de réalisation chacun des voiles de non-tissé hydrophobe, constituant une bande de circulation d'air 17, est disposé sur une des parties longitudinales de la feuille de support 2 qui s'étend au-delà du flanc longitudinal 12 du coussin absorbant 3 ; In one embodiment each of the webs of nonwoven hydrophobic, component air circulation tape 17 is arranged on one of the longitudinal parts of the carrier sheet 2 which extends beyond the longitudinal edge 12 of the absorbent pad 3; ce voile de non-tissé est collé sur ladite partie longitudinale de la feuille de support 2 le long de leur contour extérieur commun, y compris au-dessus des éléments élastiques longitudinaux 13 situés au moins dans la partie centrale 8. this veil of non-woven fabric is adhered to said longitudinal portion of the backing sheet 2 along their common outer contour, including above the lengthwise elastic members 13 situated at least in the central part 8.

Comme cela apparaît clairement sur la figure 2, chaque bande de circulation d'air 17 possède une largeur suffisante pour tre repliée sur elle-même, de manière à former un pli longitudinal 18. Un élément élastique 19 est diposé à l'état tendu, lorsque la couche-culotte 1 est à plat, entre les deux faces 23, 24 du pli 18 le long de la pliure 25. Cet élément élastique 19 est fixé par collage à la bande de circulation d'air 17 à l'intérieur dudit pli 18, celle-ci étant elle-même fixée par collage à la feuille de couverture 4 au-delà des bords transversaux 27 du coussin absorbant. As shown clearly in Figure 2, each band of air flow 17 has a sufficient width to be folded over itself so as to form a longitudinal fold 18. An elastic member 19 is dipose in the stretched state, when the diaper 1 is flat, between the two faces 23, 24 of the fold 18 along the fold 25. This elastic member 19 is bonded to the air circulation tape 17 within said bend 18, the latter being itself adhesively secured to the cover sheet 4 beyond the transverse edges 27 of the absorbent pad.

Lors de la mise en place de la couche-culotte 1, l'élément élastique 19 se rétracte entraînant un soulèvement de la bande de circulation d'air correspondante 17. Ce soulèvement provoque une déformation qui crée un passage de circulation d'air à l'intérieur de l'espace 20 situé entre les deux faces 23, 24 du pli 18 formé dans la bande 17 et la feuille de support 2. Il se crée donc un tunnel d'aération 16 qui s'étend longitudinalement le long du flanc longitudinal 12 du coussin absorbant 3 et qui favorise la circulation de l'air pénétrant ou sortant par les ouvertures d'aération 15 et par conséquent assurant une bonne ventilation de l'intérieur de la couche-culotte 1 tout le long du coussin absorbant 3. During the implementation of the diaper 1, the elastic member 19 retracts causing a lifting of the corresponding air lane 17. This lifting causes a deformation which creates an air flow passage to within the space 20 located between the two faces 23, 24 of the fold 18 formed in the tape 17 and the support sheet 2. It thus creates a nozzle duct 16 which extends longitudinally along the longitudinal side 12 of the absorbent pad 3 and promotes the flow of air entering or leaving through the ventilation openings 15 and therefore ensuring good ventilation of the interior of the diaper 1 along the absorbent pad 3.

Dans le mode de réalisation illustré à la figure 2, le bord longitudinal intérieur 21 de la bande de circulation d'air 17 est collé sur la feuille de couverture 4 au droit du flanc correspondant 12 du coussin absorbant. In the embodiment illustrated in Figure 2, the inner longitudinal edge 21 of the air circulation tape 17 is adhered to the covering sheet 4 to the right of the corresponding flank 12 of the absorbent pad. Cette disposition particulière permet une amplification du volume représentant l'espace intérieur 20 du tunnel 16 lors de la rétraction de l'élément élastique 19. De plus dans ce cas et du fait que la bande de circulation d'air 17 est réalisée dans un matériau hydrophobe, la face de la bande de circulation d'air 17 qui est comprise entre le bord longitudinal interne 21 et la pliure 25 forme un volet latéral d'étanchéité 22 qui s'élève au-dessus du coussin absorbant 3 et qui s'oppose au passage transversal de liquide. This particular arrangement allows an amplification of the volume representing the interior space 20 of the tunnel 16 upon retraction of the elastic member 19. Moreover in this case and that the air circulation strip 17 is made of a material hydrophobic, the face of the air flow band 17 which is between the inner longitudinal edge 21 and the fold 25 forms a side sealing flap 22 which rises above the absorbent pad 3 and opposes the transverse passage of liquid.

Ce double effet, de tunnel d'aération et de volet d'étanchéité est obtenu de préférence lorsque la bande de circulation d'air 17 a, dans la partie centrale 8, une largeur qui est comprise entre deux et quatre fois celle d'une ouverture d'aération 15. This dual effect of tunnel ventilation and sealing flap is preferably obtained when the air circulation strip 17 has, in the central portion 8, a width which is between two and four times that of a ventilation opening 15.

L'invention n'est pas limitée au mode de réalisation qui a été décrit ci-dessus à titre d'exemple non exhaustif. The invention is not limited to the embodiment which has been described above by way of non-limiting example. En particulier dans l'exemple illustré à la figure 1 les ouvertures d'aération 15 ont une forme sensiblement en quart d'ellipse. In particular in the example illustrated in Figure 1 the vent openings 15 have a substantially quarter of an ellipse.

Cette forme n'est pas limitative. This form is not exhaustive. Il revient à l'homme du métier de donner aux ouvertures d'aération 15 la forme et l'emplacement convenable pour autant qu'elles soient situées dans les parties extrêmes avant 9 et arrière de la couche-culotte 1 de part et d'autre et au moins le long du coussin absorbant 3. It is up to the art of giving vent openings 15 form and suitable location provided they are located in the end parts front 9 and back of the diaper 1 from both sides and at least along the absorbent pad 3.

En particulier, dans le cas où le coussin absorbant 3 ne serait pas strictement rectangulaire, la forme et l'emplacement des ouvertures d'aération seraient adaptés en conséquence : par exemple s'agissant d'un coussin présentant des prolongements transversaux dans les parties extrêmes, les ouvertures d'aération pourraient être situées dans la zone jouxtant à la fois le bord longitudinal du coussin et un des prolongements transversaux. In particular, in the case where the absorbent pad 3 is not strictly rectangular, shape and location of the vent openings would be adapted accordingly: for example in the case of a cushion having transverse extensions in the end portions , the vent openings may be located in the area adjacent to both the longitudinal edge of the pad and transverse extensions.

Il n'est par ailleurs pas exclu de disposer les ouvertures d'aération 15 en partie sous le coussin absorbant 3 ceci permettrait également d'assurer une certaine ventilation à l'intérieur dudit coussin. It is also not excluded to have the ventilation openings 15 partially in the absorbent pad 3 This would also ensure some ventilation inside said cushion.

Claims (10)

REVENDICATIONS
1. Article d'hygiène absorbant jetable, notamment couche-culotte, comportant un coussin absorbant (3) disposé sur une feuille extérieure support (2) imperméable aux liquides, ledit article étant constitué dans le sens longitudinal d'une partie centrale (8) qui correspond à la zone d'entre-jambe et de deux parties extrêmes l'une avant (9) et l'autre arrière (10) qui correspondent aux zones de positionnement et de fixation autour de la taille de l'usager, caractérisé en ce que, le coussin absorbant (3) étant de forme sensiblement rectangulaire, la feuille extérieure de support (2) comporte quatre ouvertures d'aération (15), qui sont quatre zones imperméables aux liquides et perméables aux gaz, deux dans la partie extrême avant (9) et deux dans la partie extrême arrière (10), lesdites ouvertures (15) étant situées de part et d'autre et au moins le long du coussin absorbant (3), et en ce qu'il comporte a) deux bandes longitudinales de circulation d'air (17), réalisée 1. Article of disposable absorbent hygiene, particularly diaper, comprising an absorbent pad (3) disposed on an outer backing sheet (2) impervious to liquids, said article being formed in the longitudinal direction a central part (8) which corresponds to the crotch zone and two end portions of a front (9) and one rear (10) corresponding to the positioning areas and fastening around the waist of the user, characterized in that the absorbent pad (3) being substantially rectangular in shape, the outer backing sheet (2) comprises four ventilation openings (15), which are four areas impermeable to liquids and permeable to gases, two in the end portion front (9) and two in the rear end portion (10), said apertures (15) being located on both sides and at least along the absorbent pad (3), and in that it comprises a) two longitudinal strips of air flow (17) made s dans un matériau hydrophobe et perméable aux gaz, chaque bande (17) étant fixée par son premier bord longitudinal (21) au droit du flanc longitudinal (12) du coussin absorbant (3), par son second bord longitudinal et par ses deux bords transversaux aux coSixrs extérieurs de la feuille support (3) en sorte qu'elle recouvre vers ses deux extrémités les deux ouvertures d'aération (15a, 15b) situées du même côté du coussin absorbant (3), b) et des moyens de déformation (19) desdites bandes longitudinales (17) de circulation d'air aptes à déformer celles-ci en sorte qu'elles forment, lorsque l'article est positionné sur l'usager, deux tunnels internes (16) raccordés sur les ouvertures d'aération (15). s in a hydrophobic gas-permeable material, each strip (17) being fixed by its first longitudinal edge (21) to the right of the longitudinal side (12) of the absorbent pad (3), by its second longitudinal edge and along two edges transverse to external coSixrs of the backsheet (3) so that it covers both ends to the two ventilation openings (15a, 15b) on the same side of the absorbent pad (3), b) and means of deformation (19) of said longitudinal strips (17) air flow capable of deforming them so that they form, when the article is positioned on the user, two internal tunnels (16) connected to the openings ventilation (15).
2. Article d'hygiène absorbant jetable selon la revendiation 1 caractérisé en ce que, chaque ouverture d'aération (15) est obtenue par réalisation dans la feuille extérieure support (2) d'une découpe et recouvrement de ladite découpe par un matériau imperméable aux liquides ou hydrophobe et perméable à l'air. 2. Article of hygiene according to disposable absorbent revendiation 1 characterized in that each venting opening (15) is obtained by forming in the support outer sheet (2) of a blank and covering said cutout with an impermeable material liquid or hydrophobic and air permeable.
3. Article d'hygiène absorbant jetable selon la revendication 2 caractérisé en ce que, le matériau de recouvrement est un non-tissé hydrophobe, une mousse hydrophobe ou un film microporeux hydrophobe. 3. Article disposable absorbent article according to claim 2 characterized in that the covering material is a hydrophobic nonwoven fabric, a hydrophobic foam or a microporous film hydrophobic.
4. Article d'hygiène absorbant jetable selon la revendication 1 caractérisé en ce que, chaque ouverture d'aération (15) est obtenue par des perforations localisées de petit diamètre dans la feuille extérieure support (2). 4. Article disposable absorbent article according to claim 1 characterized in that each venting opening (15) is obtained by localized perforations of smaller diameter in the supporting outer sheet (2).
5. Article d'hygiène absorbant jetable selon l'une des revendications 1 à 4 caractérisé en ce que les moyens de déformation d'une bande longitudinale de circulation d'air (17) consistent en un élément élastique (19) qui est placé sous ladite bande longitudinale (17) et qui est fixé à l'article dans les parties extrêmes (9, 10) et au-delà des ouvertures d'aération (15a, 15b), à l'état tendu lorsque ledit article (1) est à plat. 5. Article of disposable absorbent hygiene according to one of claims 1 to 4 characterized in that the deformation means of a longitudinal band of air flow (17) comprise an elastic element (19) which is placed under said longitudinal strip (17) and which is fixed to the article in the end portions (9, 10) and beyond the ventilation openings (15a, 15b), in the stretched state when said article (1) is flat.
6. Article d'hygiène absorbant jetable selon l'une des revendications 1 à 5 caractérisé en ce que chaque bande longitudinale de circulation d'air (17) comporte un pli (18) longitudinal. 6. Article of disposable absorbent hygiene according to one of claims 1 to 5 characterized in that each longitudinal strip of airflow (17) comprises a fold (18) lengthwise.
7. Article d'hygiène absorbant jetable selon la revendication 6 caractérisé en ce que chaque bande longitudinale de circulation d'air (17) a, dans la partie centrale (8), une largeur qui est comprise entre deux et quatre fois la largeur d'une ouverture d'aération (15), le bord longitudinal intérieur (21) de ladite bande (17) étant fixé selon une ligne passant à proximité immédiate des deux ouvertures d'aération (15) situées d'un même côté du coussin absorbant (3). 7. Article disposable absorbent article according to claim 6 characterized in that each longitudinal strip of airflow (17) has, in the central part (8), a width which is between two and four times the width d a vent opening (15), the inner longitudinal edge (21) of said web (17) being secured along a line passing in close proximity of the two ventilation openings (15) located on the same side of the absorbent pad (3).
8. Article d'hygiène absorbant jetable selon la revendication 7 caractérisé en ce que l'élément élastique (19) est placé entre les deux faces (23, 24) du pli (18), le long de la pliure (25). 8. Article disposable absorbent article according to claim 7 characterized in that the spring element (19) is placed between the two faces (23, 24) of the fold (18) along the fold (25).
9. Article d'hygiène absorbant jetable selon l'une des revendications 1 à 8 caractérisé en ce que, s'agissant d'un article qui comporte d'une part une feuille de couverture (4) perméable aux liquides qui recouvre le coussin absorbant (3) et qui est fixée sur la feuille support (2) et d'autre part des éléments élastiques (13) d'entre-jambe qui sont disposés longitudinalement vers les deux bords extérieurs de la partie centrale (8), chaque bande longitudinale de circulation d'air (17) est fixée d'une part sur la feuille de couverture (4) au droit du flanc longitudinal (12) du coussin absorbant (3) et d'autre part sur la feuille support (2), y compris au-dessus des éléments élastiques (13) d'entre-jambe. 9. Article of disposable absorbent hygiene according to one of claims 1 to 8 characterized in that, in the case of an article that comprises, firstly, a cover sheet (4) permeable to liquids covering the absorbent pad (3) and which is fixed on the carrier sheet (2) and on the other hand resilient members (13) crotch which are arranged longitudinally towards the two outer edges of the central part (8), each longitudinal strip air flow (17) is fixed firstly on the cover sheet (4) to the right of the longitudinal side (12) of the absorbent pad (3) and secondly on the carrier sheet (2), y including above resilient elements (13) crotch.
10. Article d'hygiène absorbant jetable selon l'une des revendications 1 à 9 caractérisé en ce que, s'agissant d'un article ayant une forme en sablier avec deux échancrures (7) latérales au niveau de la partie centrale (8), chaque bande de circulation d'air (17) a le même contour extérieur en forme de demi-sablier que la partie longitudinale de la feuille support (2) s'étendant au-delà du coussin absorbant (3) et elle est fixée sur leurs contours extérieurs communs. 10. Article of disposable absorbent hygiene according to one of claims 1 to 9 characterized in that, in the case of an article having an hourglass shape with two notches (7) side at the central portion (8) , each strip air flow (17) has the same outer contour in the shape of half hourglass that the longitudinal portion of the backsheet (2) extending beyond the absorbent pad (3) and is fixed on their common outer contours.
FR9216017A 1992-12-24 1992-12-24 Disposable and absorbent hygienic pad Withdrawn FR2699812A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9216017A FR2699812A1 (en) 1992-12-24 1992-12-24 Disposable and absorbent hygienic pad

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9216017A FR2699812A1 (en) 1992-12-24 1992-12-24 Disposable and absorbent hygienic pad

Publications (1)

Publication Number Publication Date
FR2699812A1 true FR2699812A1 (en) 1994-07-01

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FR9216017A Withdrawn FR2699812A1 (en) 1992-12-24 1992-12-24 Disposable and absorbent hygienic pad

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FR (1) FR2699812A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0670154A2 (en) * 1994-03-04 1995-09-06 Kimberly-Clark Corporation Absorbent article having an improved surge management
WO1997010788A1 (en) * 1995-09-19 1997-03-27 The Procter & Gamble Company Absorbent article having breathable side panels
FR2746638A1 (en) * 1994-12-21 1997-10-03 Kimberly Clark Co An absorbent article having an improved means of fecal matter retaining
US5674213A (en) * 1995-10-30 1997-10-07 Kimberly Clark Corporation Absorbent article having containment flaps with receiving reservoirs
WO1997041817A1 (en) * 1996-05-03 1997-11-13 The Procter & Gamble Company Diaper having an improved leg cuff
USH1750H (en) * 1997-03-06 1998-09-01 Dobrin; George Christopher Absorbent article having a breathable backsheet
US5843066A (en) * 1997-03-06 1998-12-01 The Procter & Gamble Company Absorbent article having a breathable backsheet
US6121510A (en) * 1997-12-03 2000-09-19 Kimberly-Clark Worldwide, Inc. Absorbent article having improved containment flaps
WO2009082312A1 (en) * 2007-12-21 2009-07-02 Sca Hygiene Products Ab Absorbent article comprising at least one ventilation component

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Publication number Priority date Publication date Assignee Title
EP0109126A1 (en) * 1982-11-15 1984-05-23 THE PROCTER & GAMBLE COMPANY Disposable garment with breathable leg cuffs
EP0112655A1 (en) * 1982-11-26 1984-07-04 THE PROCTER & GAMBLE COMPANY Disposable diapers with elastically contractible waistbands
EP0219969A1 (en) * 1985-09-13 1987-04-29 PTM, Inc. Diaper provided with an improved elastic fitting
US5137525A (en) * 1990-05-31 1992-08-11 Glassman Jacob A Tearable anti-rash diaper construction
EP0422504B1 (en) * 1989-10-04 1995-06-07 Kimberly-Clark Corporation Hygienic absorbent article

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0109126A1 (en) * 1982-11-15 1984-05-23 THE PROCTER & GAMBLE COMPANY Disposable garment with breathable leg cuffs
EP0112655A1 (en) * 1982-11-26 1984-07-04 THE PROCTER & GAMBLE COMPANY Disposable diapers with elastically contractible waistbands
EP0219969A1 (en) * 1985-09-13 1987-04-29 PTM, Inc. Diaper provided with an improved elastic fitting
EP0422504B1 (en) * 1989-10-04 1995-06-07 Kimberly-Clark Corporation Hygienic absorbent article
US5137525A (en) * 1990-05-31 1992-08-11 Glassman Jacob A Tearable anti-rash diaper construction

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0670154A2 (en) * 1994-03-04 1995-09-06 Kimberly-Clark Corporation Absorbent article having an improved surge management
EP0670154A3 (en) * 1994-03-04 1996-03-13 Kimberly Clark Co Absorbent article having an improved surge management.
US5562650A (en) * 1994-03-04 1996-10-08 Kimberly-Clark Corporation Absorbent article having an improved surge management
FR2746638A1 (en) * 1994-12-21 1997-10-03 Kimberly Clark Co An absorbent article having an improved means of fecal matter retaining
WO1997010788A1 (en) * 1995-09-19 1997-03-27 The Procter & Gamble Company Absorbent article having breathable side panels
US5674213A (en) * 1995-10-30 1997-10-07 Kimberly Clark Corporation Absorbent article having containment flaps with receiving reservoirs
WO1997041817A1 (en) * 1996-05-03 1997-11-13 The Procter & Gamble Company Diaper having an improved leg cuff
USH1750H (en) * 1997-03-06 1998-09-01 Dobrin; George Christopher Absorbent article having a breathable backsheet
US5843066A (en) * 1997-03-06 1998-12-01 The Procter & Gamble Company Absorbent article having a breathable backsheet
US6121510A (en) * 1997-12-03 2000-09-19 Kimberly-Clark Worldwide, Inc. Absorbent article having improved containment flaps
WO2009082312A1 (en) * 2007-12-21 2009-07-02 Sca Hygiene Products Ab Absorbent article comprising at least one ventilation component

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