LU84035A1 - DEFORMATION-RESISTANT HYGIENIC TOWEL - Google Patents
DEFORMATION-RESISTANT HYGIENIC TOWEL Download PDFInfo
- Publication number
- LU84035A1 LU84035A1 LU84035A LU84035A LU84035A1 LU 84035 A1 LU84035 A1 LU 84035A1 LU 84035 A LU84035 A LU 84035A LU 84035 A LU84035 A LU 84035A LU 84035 A1 LU84035 A1 LU 84035A1
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- LU
- Luxembourg
- Prior art keywords
- absorbent
- towel
- deformation
- sanitary napkin
- fibers
- Prior art date
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Classifications
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- 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
- A61F13/53—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 absorbing medium
- A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/53409—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 absorbing medium having an inhomogeneous composition through the thickness of the pad having a folded core
- A61F13/53418—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 absorbing medium having an inhomogeneous composition through the thickness of the pad having a folded core having a C-folded cross-section
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- 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
- A61F13/53—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 absorbing medium
-
- 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
-
- 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
- A61F13/53—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 absorbing medium
- A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
-
- 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
- A61F13/53—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 absorbing medium
- A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
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- 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
- A61F13/53—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 absorbing medium
- A61F13/539—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 absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
-
- 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
- A61F13/53—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 absorbing medium
- A61F2013/530131—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 absorbing medium being made in fibre but being not pulp
-
- 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
- A61F13/53—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 absorbing medium
- A61F2013/530437—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 absorbing medium having a part with elevated absorption means
-
- 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
- A61F13/53—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 absorbing medium
- A61F2013/530481—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 absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
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- 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
- A61F13/53—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 absorbing medium
- A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F2013/53445—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 absorbing medium having an inhomogeneous composition through the thickness of the pad from several sheets
-
- 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
- A61F13/53—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 absorbing medium
- A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F2013/53721—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction with capillary means
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- 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
- A61F13/53—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 absorbing medium
- A61F13/539—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 absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
- A61F2013/5395—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 absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers with thermoplastic agent, i.e. softened by heat
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Description
, 2 \ i i, 2 \ i i
La présente invention concerne une serviette ! hygiénique et, en particulier, une serviette hygiéni que contenant des fibres fusibles.The present invention relates to a towel! hygienic and, in particular, a sanitary napkin that contains fusible fibers.
Une des méthodes traditionnelles en vue de 5 former une serviette hygiénique consiste à assembler celle-ci en retournant la face inférieure vers le haut. On pose ensuite, par-dessus, une matière de recouvre-» ment perméable aux fluides avec un voile absorbant tel qu’un duvet de pâte de bois de telle sorte que les 10 bords se terminent au même endroit. Ensuite, on peut éventuellement ajouter une poudre surabsorbante ou une feuille d’une matière surabsorbante. Si l’on utilise I: * une feuille contenant une matière surabsorbante, il· n’est pas indispensable que cette feuille se termine 15 au même endroit que les autres éléments. Ensuite, on replie 11 enveloppe perméable aux fluides et le voile absorbant pour former essentiellement une double épais-i seur. On ajoute ensuite un écran imperméable aux i fluides afin de maintenir le pli en place et former 20 l’élément d’arrêt pour les fluides que doit comporter la serviette finie, La serviette ainsi réalisée comporte des bords longitudinaux repliés qui sont souples et confortables.One of the traditional methods for forming a sanitary napkin is to assemble it by inverting the underside upward. Next, a fluid-permeable covering material is laid over it with an absorbent veil such as a wood pulp down so that the edges end in the same place. Then, you can optionally add an superabsorbent powder or a sheet of superabsorbent material. If we use I: * a sheet containing an superabsorbent material, it is not essential that this sheet ends in the same place as the other elements. Next, the fluid-permeable envelope and the absorbent web are folded back to essentially form a double thicker. A fluid impermeable screen is then added in order to keep the fold in place and form the stop element for the fluids which the finished towel must contain. The towel thus produced has folded longitudinal edges which are flexible and comfortable.
Il est également connu d’introduire des fi-25 bres fusibles dans un voile absorbant. Dans le brevet M des Etats-Unis d’Amérique n° 4»059»H4j on décrit une telle combinaison. Comme décrit dans ce brevet, on > ajoute les fibres fusibles afin d’accroître la capacité I d’absorption en facilitant l’écoulement des fluides « 30 à 1’intérieur de la couche absorbante.It is also known to introduce fusible fi-25s into an absorbent fleece. Such a combination is described in United States patent No. 4,059,0H4j. As described in this patent, the fusible fibers are> added in order to increase the absorption capacity I by facilitating the flow of the fluids "30 inside the absorbent layer.
Récemment, la société "Johnson & Johnson" de Milltown, New Jersey, E.U.A., a vendu,sous le nom de la marque commerciale "SURE & NATURAL", une serviette hygiénique d'une épaisseur réduite qui, ainsi 35 qu’on le prétend, a une capacité d’absorption aussi forte que celle des serviettes hygiéniques de l’épais-Recently, "Johnson & Johnson" of Milltown, New Jersey, USA, sold under the brand name "SURE & NATURAL" a sanitary napkin of reduced thickness which, as claimed , has an absorption capacity as strong as that of thick sanitary napkins
AAT
► 3 seur habituelle. L'élément absorbant de cette serviette comporte une matière surabsorbante mélangée avec la couche absorbante classique. L'absorbant restant est du type cellulosique habituel. Même en 5 incorporant une matière surabsorbante, cette serviette n'a pas eu le rendement escompté. On a constaté qu'une des raisons de ce rendement décevant était les contraintes de déformation auxquelles la serviette n'a pu résister en raison de sa structure.► 3 usual sors. The absorbent element of this towel comprises an superabsorbent material mixed with the conventional absorbent layer. The remaining absorbent is of the usual cellulosic type. Even when incorporating an superabsorbent material, this towel did not perform as expected. It has been found that one of the reasons for this disappointing performance was the deformation constraints which the towel could not resist due to its structure.
10 Lorsque la serviette hygiénique est portée, les jambes de l'utilisateur lui imposent des forces dirigées vers l'intérieur le long de 1' axe longitu-’ dinal. Ces forces créent également un effet de cisail lement le long de cet axe longitudinal. On a trouvé j 15 que, lorsque les absorbants classiques contiennent une I quantité suffisante d'un liquide tel que les menstrues et que^lorsqu'une force de déformation est appliquée, l'absorbant classique ne reprend pas sa forme antérieure. Cette remarque est vraie bien que l'absorbant 20 soit entouré d'une enveloppe non absorbante. L'absorption des menstrues a tendance à provoquer une déformation et un retroussement local le long du plan de la serviette. Il en résulte non seulement un inconfort dû à la déformation de la serviette, mais également 25 une influence négative sur ses propriétés absorbantes.When the sanitary napkin is worn, the legs of the wearer impose forces directed inwardly along the longitudinal axis. These forces also create a shear effect along this longitudinal axis. It has been found that when the conventional absorbents contain a sufficient amount of a liquid such as menstruation and that when a deformation force is applied, the conventional absorbent does not return to its former shape. This remark is true although the absorbent 20 is surrounded by a non-absorbent envelope. The absorption of menses tends to cause local deformation and upturn along the plane of the towel. This results not only in discomfort due to the deformation of the towel, but also in a negative influence on its absorbent properties.
» j Une forte déformation et un retroussement localisé I de la matière absorbante humide peuvent donner lieu à | | la formation de canaux par lesquels le fluide s'écoule ! latéralement ou qui, par ailleurs, gênent l'étalement i 30 général du fluide à travers la matière absorbante.»J Strong deformation and localized rolling up I of the damp absorbent material may give rise to | | the formation of channels through which the fluid flows! laterally or which otherwise interfere with the general spreading of the fluid through the absorbent material.
\ Suivant la présente invention, on prévoit une : serviette hygiénique le long des bords longitudinaux de laquelle est plié un voile absorbant. La matière , absorbante contient des fibres fusibles qui, en com- 35 binaison avec les bords longitudinaux repliés, forment une matrice absorbante élastique conservant sa iorme / î « i 1 r 4 après une importante absorption de fluide. En conséquence, une serviette réalisée conformément à la pré-I sente invention est supérieure tant du point de vue confort que du point de vue de sa capacité d'absorp-5 tion comparativement à une serviette ayant une masse absorbante égale et une capacité de surabsorption semblable.According to the present invention, a sanitary napkin is provided along the longitudinal edges of which an absorbent veil is folded. The absorbent material contains fusible fibers which, in combination with the folded longitudinal edges, form an elastic absorbent matrix retaining its shape after significant absorption of fluid. Consequently, a towel produced according to the pre-invention is superior both from the comfort point of view and from the point of view of its absorption capacity compared to a towel having an equal absorbent mass and an absorption capacity. similar.
La présente invention sera mieux comprise en se référant à l'unique dessin annexé qui est une vue 10 en coupe transversale d'une forme de réalisation pré-The present invention will be better understood by referring to the single appended drawing which is a cross-sectional view of a pre-form embodiment.
Iférée de la serviette de la présente invention. Comme on peut le constater dans cette figure, une couche I - absorbante 10 contenant des fibres fusibles est en- - ·< | tourée d'une enveloppe 16 perméable aux fluides et elle J 15 est repliée en dessous d'elle-même afin de former des ; i : ! bords étroitement adjacents comme représenté par les : li 1 lignes en traits discontinus 11. Une couche absorbante i | intermédiaire réalisée en une matière surabsorbante i 13 est disposée généralement au centre de la matrice î " I 20 absorbante en reposant sur le dessus de la surface i 1 repliée 12 de la matière absorbante 10, tandis qu'un écran 14 imperméable aux fluides est fixé par un adhésif sur la face inférieure de la couche absorbante ; j repliée. Les extrémités transversales de la couche :S 25 absorbante 10 ne sont pas collées aux bords, mais 5 ;| elles sont plutôt scellées par fusion. Cette fusion I apparaît généralement dans la matière absorbante sous forme de minces bandes claires semi-circulaires 15 I situées en retrait par rapport aux extrémités de la jj 30 serviette. En ne fixant pas les extrémités extrêmes I de la serviette, on obtient des extrémités lâches et ! flexibles qui sont plus confortables que des extrémités î liées aux bords mêmes.Ifered with the towel of the present invention. As can be seen in this figure, an I - absorbent layer 10 containing fusible fibers is also - - · <| wrapped in a fluid-permeable casing 16 and it J 15 is folded back below itself to form; i:! closely adjacent edges as shown by: li 1 dashed lines 11. An absorbent layer i | intermediate made of an superabsorbent material i 13 is generally arranged in the center of the absorbent matrix I "20 resting on top of the folded surface i 1 12 of the absorbent material 10, while a screen 14 impermeable to fluids is fixed by an adhesive on the underside of the absorbent layer; j folded in. The transverse ends of the absorbent layer: S 25 are not glued to the edges, but 5; | they are rather sealed by fusion. This fusion I generally appears in the absorbent material in the form of thin, semi-circular clear strips 15 I which are set back from the ends of the towel 30. By not fixing the extreme ends I of the towel, loose and flexible ends are obtained which are more comfortable as ends î linked to the edges themselves.
* La forme de réalisation préférée de la ser- 35 viette hygiénique représentée dans le dessin comporte une enveloppe extérieure qui est solidaire de l'absor- : / .s - ./ ; 5* The preferred embodiment of the sanitary napkin shown in the drawing has an outer casing which is integral with the absorbent: / .s - ./; 5
Ibant préféré auquel elle est fusionnée après avoir déposé cet absorbant en utilisant l’enveloppe comme support'et ce, du fait que la matière particulièrement préférée est celle décrite dans le brevet des 5 Etats-Unis d’Amérique 4·100.324· Cette matière non tissée a un fini analogue à celui d’un tissu et elle | est constituée d'une matrice formée à l'air et cons— | tituée de fibres polymères thermoplastiques d’un J diamètre moyen inférieur à environ 10 microns, ainsi \ 10 que de plusieurs fibres individuelles de pâte de bois jî 3 dispersées dans toute cette matrice et servant à | écarter les microfibres l'une de l'autre, I ' On forme cette matière en utilisant initia- - ; lement un courant d'air primaire avec les micro- i 15 fibres soufflées en masse fondue, ainsi qu'un courant ? d'air secondaire contenant des fibres de pâte de bois, ! puis en réunissant les deux courants turbulents et en | ’ faisant ensuite passer le courant d'air intégré le | long d'une surface de formage. L'aspect analogue à | 20 celui d'un tissu que possède cette matière, forme un à élément absorbant d'un aspect agréable, 1 . Un avantage qu'offre subsidiairement' le con- « cept de la présente invention réside non seulement I ' dans l'aptitude à fusionner les extrémités de la ser- | 25 viette, mais également dans l'aptitude à fusionner j l'absorbant contenant des fibres fusibles avec la I ^ couche formant un écran imperméable aux fluides, I Ainsi qu'on l'a mentionné ci—dessus, la ser- j viette hygiénique suivant la présente invention est 30 caractérisée à la fois par la présence des bords Ion-gitudînaux repliés et par l'incorporation de fibres û fusibles dans la matrice absorbante. De façon éton- Π nante, c'est cette combinaison particulière qui est à ij la base de la résistance à la déformation. Une ser— i | 35 viette réalisée conformément aux enseignements de la :| présente invention conserve au moins 9&35% de sa sur- . /- il 11 i 6 r |1 [' face après avoir absorbé 1 g de fluide menstruel et lorsqu'elle a été portée pendant une période d'au moins 1 heure. La surface mesurée est celle qui est essentiellement plate. De cette surface, on soustrait 5 celles qui sont retroussées ou déformées en dehors d'un plan qui est soit plat, soit curviligne suivant les dimensions totales de la serviette et la conformation de l'utilisateur. De façon étonnante, des serviettes comportant des bords repliés sans fibres 10 fusibles subissent une déformation permanente. Cette remarque est également vraie pour les serviettes corn— I portant des fibres fusibles, mais n'ayant pas des J . bords longitudinaux repliés. Ces serviettes qui sont ! généralement connues sous le nom de "serviettes 115 découpées à l'emporte-pièce" en raison de l'existence de bords se terminant au même endroit sur la periphe—Preferred ibant to which it is fused after having deposited this absorbent using the envelope as a support, because the particularly preferred material is that described in the patent of the United States of America 4 · 100.324 · This material not woven has a fabric-like finish and it | consists of a matrix formed in air and cons— | made up of thermoplastic polymer fibers with an average diameter J less than about 10 microns, as well as several individual fibers of wood pulp jî 3 dispersed throughout this matrix and used for | move the microfibers apart, I 'We form this material using initia- -; Also a stream of primary air with the micro-fibers blown in melt, as well as a stream? secondary air containing wood pulp fibers,! then by joining the two turbulent currents and in | Then passing the integrated air stream on | along a forming surface. The aspect similar to | 20 that of a fabric possessed by this material, forms an absorbent element with a pleasant appearance, 1. In the alternative, the advantage of the concept of the present invention lies not only in the ability to merge the ends of the service. 25 viette, but also in the ability to merge absorbent containing fusible fibers with the I ^ layer forming a screen impermeable to fluids, I As mentioned above, the sanitary towel according to the present invention is characterized both by the presence of the folded edge edges and by the incorporation of fusible fibers in the absorbent matrix. Surprisingly, it is this particular combination which is at ij the basis of the resistance to deformation. A ser— i | 35 viette produced in accordance with the teachings of the: | present invention retains at least 9 & 35% of its over-. / - il 11 i 6 r | 1 ['face after absorbing 1 g of menstrual fluid and when it has been worn for a period of at least 1 hour. The surface measured is that which is essentially flat. From this surface, those which are rolled up or deformed outside a plane which is either flat or curvilinear are subtracted 5 according to the total dimensions of the towel and the conformation of the user. Surprisingly, towels with folded edges without fusible fibers undergo permanent deformation. This is also true for corn napkins with fusible fibers, but without J. folded longitudinal edges. These towels that are! generally known as "115 cut napkins" due to the existence of edges ending in the same place on the periphe—
' J'J
J rie de la serviette, ne possèdent pas la résistance à Ί la déformation permanente et au retroussement se pro- | duisant lorsqu'on utilise des fibres fusibles dans i20 une serviette d'une configuration repliée. De même, ^ la déformation est particulièrement importante lors- I qu'il n'y a aucun élément suivant la présente inven- '1 !tion et lorsque l'épaisseur de la serviette est réduite comme c'est le cas dans la serviette de type | 25 "SURE & NATURAL».J rie of the towel, do not have the resistance to dé permanent deformation and rolling up pro- | good when using fusible fibers in i20 a towel of a folded configuration. Likewise, the deformation is particularly important when there is no element according to the present invention and when the thickness of the towel is reduced as is the case in the towel. type | 25 "SURE & NATURAL".
,| Il est à noter que cette résistance à la J déformation est particulièrement importante dans des I serviettes d'une masse réduite. Des serviettes com- j portant entre 5*08 et 12,7 111111 de matière absorbante ! 30 sont particulièrement résistantes à la déformation 'il * * 1 et, en fait, les mesures mentionnées ci-dessus ont Ί :! été effectuées sur des serviettes de ce type., | It should be noted that this resistance to deformation is particularly important in towels of reduced mass. Towels with between 5 * 08 and 12.7 111111 of absorbent material! 30 are particularly resistant to deformation 'il * * 1 and, in fact, the measures mentioned above have Ί:! were carried out on towels of this type.
Ί ! Toutefois, afin d'assurer la résistance a laΊ! However, in order to ensure resistance to
îi Jîi J
| déformation suivant la présente invention, il est I 35 nécessaire que la matière absorbante ait une densité il d'au moins 20 g/m2. On obtient une meilleure résis- 3 / i ;î i / * I 7 ! i tance à la déformation à des densités plus élevées j des densités de 150 à 200 g/m2 sont habituellement préférées* Des densités supérieures peuvent augmenter la rigidité sans accroître sensiblement la résistance 5 à la déformation. Lorsqu*une matière surabsorbante est présente dans des serviettes ayant cette épaisseur réduite, ce type de produit possède le potentiel d*absorption escompté,car la capacité dTabsorption de la serviette ainsi conçue peut être pleinement 10 utilisée.| deformation according to the present invention, it is necessary that the absorbent material has a density il of at least 20 g / m2. Better resistance is obtained 3 / i; î i / * I 7! Deformation resistance at higher densities j densities of 150-200 g / m2 are usually preferred. Higher densities can increase stiffness without significantly increasing resistance to deformation. When superabsorbent material is present in towels of this reduced thickness, this type of product has the expected absorption potential, since the absorbency of the towel so designed can be fully utilized.
j Bien qu'une matière surabsorbante soit actuel- i [ lement préférée, il est à noter qu’il existe d’autres | « matières ayant une plus forte capacité d’absorption i ou d’autres propriétés souhaitables que l’on peut ! 15 ajouter en supplément ; de même, on peut réaliser une serviette sans la présence de cette matière. Du fait qu’une serviette suivant la présente invention peut i conserver sa forme, la capacité d’absorption est utilisée avec une plus grande efficacité, de sorte 20 qu’il est moins nécessaire d’utiliser un absorbant supplémentaire.j Although superabsorbent material is currently preferred, it should be noted that there are others | "Materials with higher absorption capacity i or other desirable properties than we can!" 15 add as a supplement; similarly, a towel can be produced without the presence of this material. Because a towel according to the present invention can keep its shape, the absorbency is used with greater efficiency, so that there is less need to use an additional absorbent.
Ë i n ! / i i i rË i n! / i i i r
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24902381A | 1981-03-30 | 1981-03-30 | |
US24902381 | 1981-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
LU84035A1 true LU84035A1 (en) | 1982-12-13 |
Family
ID=22941719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
LU84035A LU84035A1 (en) | 1981-03-30 | 1982-03-24 | DEFORMATION-RESISTANT HYGIENIC TOWEL |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS57175357A (en) |
KR (1) | KR830008661A (en) |
AU (1) | AU8185882A (en) |
BE (1) | BE892680A (en) |
BR (1) | BR8201753A (en) |
DE (1) | DE3211744A1 (en) |
FR (1) | FR2502490A1 (en) |
GB (1) | GB2096002A (en) |
IT (1) | IT1147828B (en) |
LU (1) | LU84035A1 (en) |
NL (1) | NL8201246A (en) |
ZA (1) | ZA821883B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2124907B (en) * | 1982-08-07 | 1986-05-14 | Smith & Nephew Ass | Absorbent device for bodily liquids |
US4576596A (en) * | 1983-03-03 | 1986-03-18 | Kimberly-Clark Corporation | Resilient shape-retaining sanitary napkin |
DE3342963A1 (en) * | 1983-11-26 | 1985-06-05 | Winkler & Dünnebier, Maschinenfabrik und Eisengießerei GmbH & Co KG, 5450 Neuwied | METHOD AND DEVICE FOR PRODUCING SUCTION CUSHIONS FOR ABSORBING BODY LIQUID |
GB2159417B (en) * | 1984-04-30 | 1987-09-09 | Procter & Gamble | Pantiliner |
US4654040A (en) * | 1986-02-27 | 1987-03-31 | Personal Products Company | Smooth-edged contoured sanitary napkin |
US4770657A (en) * | 1986-05-28 | 1988-09-13 | Kimberly-Clark Corporation | Three-dimensional shaped feminine pad with absorbent in the elasticized edges |
CA2054029C (en) * | 1991-07-17 | 1998-05-19 | Louise Cynthia Ellis Coe | Absorbent article exhibiting improved fluid management |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3525338A (en) * | 1968-04-17 | 1970-08-25 | Kimberly Clark Co | Absorbent pad |
US4100324A (en) * | 1974-03-26 | 1978-07-11 | Kimberly-Clark Corporation | Nonwoven fabric and method of producing same |
US4102340A (en) * | 1974-12-09 | 1978-07-25 | Johnson & Johnson | Disposable article with particulate hydrophilic polymer in an absorbent bed |
US4059114A (en) * | 1976-05-12 | 1977-11-22 | Minnesota Mining And Manufacturing Company | Garment shield |
-
1982
- 1982-03-19 ZA ZA821883A patent/ZA821883B/en unknown
- 1982-03-24 AU AU81858/82A patent/AU8185882A/en not_active Abandoned
- 1982-03-24 LU LU84035A patent/LU84035A1/en unknown
- 1982-03-24 FR FR8205001A patent/FR2502490A1/en not_active Withdrawn
- 1982-03-25 NL NL8201246A patent/NL8201246A/en not_active Application Discontinuation
- 1982-03-26 BR BR8201753A patent/BR8201753A/en unknown
- 1982-03-26 IT IT48106/82A patent/IT1147828B/en active
- 1982-03-29 KR KR1019820001351A patent/KR830008661A/en unknown
- 1982-03-29 BE BE0/207701A patent/BE892680A/en not_active IP Right Cessation
- 1982-03-30 GB GB8209309A patent/GB2096002A/en not_active Withdrawn
- 1982-03-30 DE DE19823211744 patent/DE3211744A1/en not_active Withdrawn
- 1982-03-30 JP JP57052238A patent/JPS57175357A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2502490A1 (en) | 1982-10-01 |
BE892680A (en) | 1982-07-16 |
ZA821883B (en) | 1983-07-27 |
NL8201246A (en) | 1982-10-18 |
IT8248106A0 (en) | 1982-03-26 |
BR8201753A (en) | 1983-02-22 |
DE3211744A1 (en) | 1982-10-28 |
KR830008661A (en) | 1983-12-14 |
JPS57175357A (en) | 1982-10-28 |
GB2096002A (en) | 1982-10-13 |
IT1147828B (en) | 1986-11-26 |
AU8185882A (en) | 1982-10-07 |
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