WO2005055894A1 - Serviette hygienique - Google Patents

Serviette hygienique Download PDF

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Publication number
WO2005055894A1
WO2005055894A1 PCT/JP2004/012365 JP2004012365W WO2005055894A1 WO 2005055894 A1 WO2005055894 A1 WO 2005055894A1 JP 2004012365 W JP2004012365 W JP 2004012365W WO 2005055894 A1 WO2005055894 A1 WO 2005055894A1
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WO
WIPO (PCT)
Prior art keywords
sheet
liquid
range
thickness
length
Prior art date
Application number
PCT/JP2004/012365
Other languages
English (en)
Japanese (ja)
Inventor
Hiroko Yano
Aya Nakagawa
Original Assignee
Kobayashi Pharmaceutical Co., Ltd.
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 Kobayashi Pharmaceutical Co., Ltd. filed Critical Kobayashi Pharmaceutical Co., Ltd.
Publication of WO2005055894A1 publication Critical patent/WO2005055894A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use

Definitions

  • the present invention relates to an undergarment absorbent sheet used when worn.
  • the vaginal discharge sheet is mainly provided for the purpose of absorbing the vaginal discharge, and is used as a sanitary product.
  • the conventional voucher sheet is thinner than the sanitary napkin, the crotch width of the shorts is used to prevent slippage after wearing and to be used by women with many vaginal discharges such as pregnant Tanaka.
  • the width is adjusted according to the length of the body, and the length is designed to allow ample space around the labia (vaginal opening) and has almost the same shape as the sanitary napkin.
  • the bodily fluid absorbing sheet is mainly composed of a topsheet, a backing sheet, and a liquid absorbing layer interposed between the topsheet and the backing sheet.
  • the conventionally proposed technology improves the absorbability of menstrual blood, urine, and the like.
  • Patent Document 1 can be cited as an example relating to the improvement of an apertured film used for a surface sheet.
  • these prior publications are intended to absorb menstrual blood and urine, which have relatively large outflows, and are excessively unnecessary in view of the absorption of vaginal discharge, which has a low daily output. It has a complicated structure, and on the contrary, it causes a feeling of use resistance and discomfort when wearing.
  • many of the body fluid absorption sheets proposed so far are used on a daily basis. It is not suitable for the purpose of absorbing vaginal discharge that needs to be used.
  • a conventional body fluid absorbing sheet has been proposed in which the conventional body fluid absorbing sheet is made thinner and has a multi-layered structure, thereby eliminating the complicated replacement and improving portability. Reference 5 etc.). However, it has been proposed that the shape of the body fluid absorbing sheet be different from that of the conventional body fluid absorbing sheet.
  • Patent Document 1 JP-A-2002-105835
  • Patent Document 2 Japanese Patent Application Laid-Open No. 2002-17777
  • Patent Document 3 Japanese Patent Publication No. 2001-504727
  • Patent Document 4 JP 2001-504729 A
  • Patent Document 5 W ⁇ 95 / 29655
  • An object of the present invention is to provide a vaginal discharge sheet that does not cause discomfort when worn on a daily basis. More preferably, an object of the present invention is to provide a vagina sheet having an excellent fit.
  • the inventors of the present invention have been diligently studying to solve the above-mentioned problem, and have found that the size of the veneer sheet is reduced, and furthermore, it is preferable to provide a difference between the thickness of the peripheral portion and the thickness of the inside of the peripheral portion.
  • the present inventors have stated that the above-mentioned seat sheet has the advantage of being able to sufficiently absorb the amount of the stick while being small, and, conversely, being excellent in portability due to its reduced size.
  • women, especially young women had the advantage of reducing the resistance to vaginal discharge sheets.
  • the present invention has been developed based on strong knowledge and has the following aspects:
  • Item 1 A small, well-fitting veneer sheet that can sufficiently absorb vaginal items.
  • Item 2. A veneer sheet according to item 1, in which the surface area of the skin contact surface is in the range of 10 62.5 cm 2.
  • the veneer sheet described in Item 1 or 2 which has a rectangular or substantially rectangular shape, with a longitudinal length of 50 125 mm and a lateral length of 30-50 mm.
  • Item 4 A veneer sheet in which a liquid-permeable top sheet and a liquid-impermeable back sheet are laminated by pressure bonding along the periphery with a liquid absorbing layer interposed between them, if necessary.
  • Item 4. The veneer sheet according to any one of Items 1 to 3, wherein a difference between the determined thickness of the peripheral region and the thickness of the peripheral inner region is in a range of 30 to 1000 / im.
  • the liquid-permeable topsheet is made of a natural material, preferably a cotton material.
  • the veneer sheet according to any one of 1 to 4.
  • Item 6 The veneer sheet according to any one of Items 1 to 5 having an elliptical shape or a spindle shape.
  • the present invention provides a voucher sheet that is small in size and capable of sufficiently absorbing vaginal discharge and having a good fit.
  • Such a veil sheet is characterized in that it has a small rectangular shape or a substantially rectangular shape.
  • the rectangle refers to a quadrangle in which all the apex angles are right angles, one side is longer than the adjacent side and the lengths of the opposing sides are equal.
  • a substantially rectangular shape is one that has the shape of a rectangle (vertical according to the viewpoint) that is a characteristic of a rectangle.
  • examples include an elliptical shape, a spindle shape, a gourd shape, and a trapezoidal shape (vertical trapezoidal shape).
  • These rectangular or substantially rectangular sheets have a longitudinal length of 50 125 mm, and It has a small shape with a length in the transverse direction of 30-50 mm.
  • the “length in the longitudinal direction” refers to one end of the sheet when a line passing through the center of the sheet (shown by a black circle in the figure) is drawn parallel to the longitudinal direction of the sheet as shown in Fig. 1.
  • the force is equivalent to the length A to the other end, while the “length in the transverse direction” is the length of the sheet parallel to the transverse direction of the sheet (in other words, perpendicular to the line above).
  • the shape preferably has a length in the longitudinal direction of 60 125 mm and a length in the transverse direction of 30 45 mm, and more preferably has a length in the longitudinal direction of 60 100 mm and a length in the transverse direction of 30 45 mm.
  • the shape in the surroundings more preferably, the shape having a length in the longitudinal direction of 70-100 mm and a length in the transverse direction of 35 45 mm.
  • the veneer sheet of the present invention preferably has a multilayer structure in which at least a liquid-permeable top sheet and a liquid-impermeable backsheet are laminated with a liquid absorbing layer interposed therebetween.
  • the liquid-permeable top sheet also functions as a liquid-absorbing layer, it may have a two-layer structure in which a liquid-permeable top sheet and a liquid-impermeable back sheet are laminated.
  • the liquid-permeable top sheet is a surface sheet part used in contact with a local part (labial part, vaginal opening), and, for example, a veneer placed thereon passes through the lower part.
  • a local part laabial part, vaginal opening
  • a veneer placed thereon passes through the lower part.
  • One having liquid permeability so as to penetrate the liquid absorbing layer water absorbing sheet
  • the material that can form the force and the sheet include, for example, synthetic fibers such as polyester fiber, polyamide fiber, acrylic fiber, polypropylene, polyethylene / polyester composite fiber, and polyethylene / polypropylene composite fiber; and natural fibers such as cotton, wool, and hemp.
  • semi-synthetic fibers such as rayon fibers and acetate fibers; and blended or mixed fibers of various fibers. Since it is used in direct contact with sensitive local parts, it is preferably a non-irritating natural fiber, and more preferably cotton.
  • the structure of the seat is not particularly limited, Examples include woven fabric, knitted fabric, nonwoven fabric (including nonwoven fabric composed of non-converged filaments and short fibers), felt and the like. It is preferably a nonwoven fabric because it has elasticity and flexibility with little local irritation.
  • the liquid-permeable top sheet may have a porous structure such as a mesh shape so as to facilitate penetration of the veneering material into the lower liquid absorbing layer, and provide a good feeling of contact with the skin. It may have a shape such as an embossed pattern (embossed pattern) in order to reduce the size.
  • the thickness of the topsheet used is not limited as long as the object of the present invention is achieved, but is usually in the range of 30 to 1000 zm, preferably in the range of 50 to 600 zm, more preferably in the range of 80 to 300 ⁇ m. Can be appropriately selected and used.
  • the liquid-impermeable backsheet is not particularly limited as long as it is a sheet or film having a liquid barrier property so that the liquid does not pass through, ) Is preferable.
  • the material of the liquid-impervious layer is not particularly limited as long as it has the above properties, and those commonly used are widely used. Examples thereof include polyolefins such as polyethylene and polypropylene, polyesters, nylons, polyvinyl alcohol, polystyrene, polyvinylidene chloride and the like, and multilayer films thereof. Preferably it is polyethylene.
  • the thickness of the sheet to be used is not limited as long as the object of the present invention is achieved, but is usually in the range of 20-800 / im, preferably in the range of 30-400 / im, more preferably in the range of 30-200 / im. It can be appropriately selected from the range and used.
  • the liquid absorbing layer laminated between the top sheet and the back sheet is not particularly limited as long as it is made of a material having water absorption.
  • the material having water absorption include a water-absorbing polymer, water-absorbing pulp, water-absorbing fiber, activated carbon, silica gel, and the like.
  • the liquid absorbing layer may be formed of a molded product obtained by molding the above various materials into a film or a sheet.
  • it includes a film-like or sheet-like molded product such as a woven fabric, a knitted fabric, and a non-woven fabric (including a non-woven fabric composed of a non-bundled filament group and a short fiber group).
  • water-absorbing polymer examples include an acrylic acid-butyl alcohol-based copolymer, an acrylamide-based polymer, a biocopolymer, and the like.
  • Examples of the water-absorbing fibers include polyester fibers, polyamide fibers, acrylic fibers, and polypropylene fibers.
  • Synthetic fiber such as pyrene, polyethylene / polyester composite fiber, polyethylene / polypropylene composite fiber; natural fiber such as cotton, wool and hemp; or semi-synthetic fiber such as rayon fiber and acetate fiber; Fine goods can be mentioned.
  • synthetic fibers such as polypropylene, polyethylene, polyester, polyethylene terephthalate, ethylene butyl acetate and the like or composite fibers thereof are exemplified, and specifically, polyethylene / polyester (including polyethylene terephthalate) composite fibers and polyether.
  • Tylene / polypropylene composite fiber ethylene acetate butyl / polypropylene composite fiber, and the like.
  • these synthetic fibers are not particularly limited by the cross-sectional structure and the like, and may have various structures represented by irregular cross-sectional fibers, porous fibers, porous water-absorbing fibers, and the like.
  • polyester fibers, polyethylene / polyester conjugate fibers, and the like are preferably used.
  • the veneer sheet of the present invention has a laminated structure including the liquid-permeable top sheet, the liquid-absorbing layer, and the liquid-impermeable backsheet, between the respective layers or the lower surface of the liquid-impermeable backsheet.
  • a liquid-impermeable backsheet has an adhesive layer on the lower surface (in other words, an adhesive surface to underwear, etc.), and further has a release paper. May be.
  • the vaginal sheet of the present invention has a structure in which the liquid-permeable top sheet 4 and the liquid-impermeable back sheet have a fixed inner side from the edge with the liquid absorbing layer 5 interposed therebetween as necessary.
  • the region £ has a shape formed by being pressed in a band along the outer peripheral edge of the sheet (see FIG. 2A).
  • the thickness of the region formed by pressure bonding along the outer peripheral edge of the sheet is the other region, that is, the region occupying the inside of the region. (Peripheral inner area) is thinner than the thickness of the sheet.
  • the peripheral inner area of the sheet has a raised shape compared to its peripheral area (press-formed part 2) (see FIG. 2). (see (b)).
  • This raised shape is an extremely useful shape for providing the veneer sheet of the present invention with tackiness and fit.
  • the swelling shape is not excessively large.
  • the difference between the thickness of the pressure-bonded forming portion 2 and the thickness of the inner peripheral region is in the range of 30 1000 xm. Preferably Is in the range of 30-500 ⁇ m, more preferably 100-350 ⁇ m.
  • the thickness of the veneer sheet itself is also an important factor for the purpose of reducing discomfort during mounting.
  • the thickness of the pressure-bonding forming section 2 can be suitably in the range of 700 to 2200 ⁇ , preferably 1000 to 1800 ⁇ m, more preferably 1300 to 1600 ⁇ m.
  • the pressure-bonding forming section 2 may be formed by pressure-bonding the liquid-permeable top sheet 4 and the liquid-impermeable backsheet with the liquid absorbing layers interposed therebetween. Although it is good (three-layer structure), it may be composed of a liquid-permeable top sheet 4 and a liquid-impermeable back sheet 6 without a liquid absorbing layer.
  • the width of the pressure-bonding forming part 2 (length in Fig. 2, length of C) is not particularly limited, but is usually 14 mm from the end of the sheet, preferably 2-3 mm. be able to.
  • the veneer sheet of the present invention is not particularly limited in its manufacturing method as long as it has the above-mentioned shape, and can be manufactured using a conventionally known method. For example, first, a long liquid-impermeable backsheet, a long sheet-shaped liquid absorbing layer, and a long liquid-permeable topsheet are laminated, and the backsheet is given an appropriate tension. Layers are pressed lightly together to equalize the thickness of the multilayer. Then, in the obtained multilayer sheet, according to the shape of the veneer sheet, the edge of the sheet is heat-pressed and fixed in a belt shape along the outer peripheral edge, and then the sheet is punched along the shape. A cutting method can be mentioned.
  • a sheet having an appropriate thickness difference between the sheet peripheral portion and the peripheral inner region can be formed.
  • the above-described step is performed with the backsheet having an appropriate tension, thereby forming a sheet having a shape in which the peripheral inner region is raised toward the topsheet. Can be.
  • the veneer sheet of the present invention having the above-described configuration is excellent in portability and reduced in discomfort due to wearing by reducing the size of the veneer sheet without impairing the absorbability of the veneer, so that it can be used on a daily basis. It is very consistent with the desired purpose of absorbing vaginal discharge.
  • the veneer sheet of the present invention which has been reduced in size and the difference between the thickness of the peripheral region formed by crimping and the thickness of the peripheral inner region is set in the range of 30 to 1000 / im, fits moderately to the labia. It is suitable for everyday use.
  • each of the above layers is bonded and laminated with a heat-soluble adhesive between the top sheet and the back sheet so as to sandwich the liquid absorbing layer, and then a region having an edge force of about 2-3 mm is used.
  • a region having an edge force of about 2-3 mm is used.
  • the thickness of the peripheral region 2 formed by press bonding was about 1540 / im, the thickness of the inside of the peripheral portion not pressed was 1700 ⁇ m, and the difference was 160 ⁇ m.
  • vagina sheet (sample) for testing.
  • discomfort during wearing, portability, and liquid absorption were evaluated by the following methods.
  • samples 17 A total of seven types of vagina sheets (samples 17) were used by three women of different body types for three days each, and were evaluated for discomfort and portability based on the following criteria.
  • the length in the short direction is in the range of 30 to 45 mm
  • the length in the long direction is 60
  • a veneer sheet in the range of 125 mm, more specifically, a veneer sheet (sample 3-5) with the above dimensions and a contact surface area in the range of 15-40 cm 2 It was clear that the wearing feeling, portability, and slippage were good.
  • the veneer sheets having the above-mentioned material strengths were all flexible, soft, and soft in texture, with little physical irritation to the skin, and tender to the touch.
  • the difference between the thickness of the peripheral region formed by crimping and the thickness inside the peripheral region is 30,
  • a veneer sheet in the range of 1000 ⁇ m (sample 9-113), preferably a veneer sheet in the range of 100-300 ⁇ m (samples 10 and 11), should have a good fit without any discomfort. I understood.
  • the vagina sheet is more excellent in fit and wearing feeling when the inside of the vignette sheet has a constant thickness than the peripheral edge and has a certain height from the periphery.
  • a voucher sheet (dimensions in the longitudinal and lateral directions, contact surface area) with good results in all of the liquid absorption property, the feeling of wearing, and the portability.
  • Specimen 4 90 mm in longitudinal direction, 40 mm in lateral direction, surface area 30 cm 2 , thickness difference 160 ⁇ m, elliptical or spindle shape).
  • a bookmark sheet (Sample 16-18) was prepared, and the feeling of wearing and the feeling of fitting were compared and evaluated according to the following criteria.
  • a trapezoid having a vertically long trapezoidal shape (length 90 mm in the longitudinal direction, central width [length in the transverse direction] 35 mm, width of the upper side of the trapezoid (before mounting) 45 mm, lower side of the trapezoid ( The same cage sheet as the reference sample (Sample 4) except that the width is 25 mm) (after mounting);
  • Sample 17 was a gourd type (Bj ⁇ ron type) (90 mm long in the longitudinal direction, center width) [Length in the transverse direction] 35 mm) except for the same veneer sheet as the reference sample (Sample 4); and for Sample 18, except that the top sheet material is polyethylene fiber (synthetic fiber).
  • the same veneer sheet as the reference sample (sample 4) was used.
  • the present invention by reducing the size of the vagina without impairing the absorbability of the vagina and by fitting it to the labia (vaginal opening) from which the vagina is discharged, discomfort in wearing is eliminated. It can improve portability and provide a veneer sheet with improved convenience for daily use.
  • FIG. 1 is a view for explaining a length ⁇ in a longitudinal direction and a length ⁇ in a lateral direction of a vaginal sheet 1 of the present invention.
  • black circles indicate the center of the sheet.
  • FIG. 2 is a view showing an oval or spindle-shaped veneer sheet 1 as an example of the veneer sheet of the present invention.
  • (A) is a top view
  • (b) is a perspective view.

Landscapes

  • 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)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

Problèmes posés : produire une serviette hygiénique qui, même lorsqu'on l'utilise quotidiennement, n'entraîne pas une sensation d'inconfort lorsqu'on la porte, avec une gêne physique et mentale réduite lorsqu'on l'utilise. Solution : une serviette hygiénique fabriquée de sorte que les zones de surface en contact avec la peau soient comprises entre le 10 cm2 62,5 cm2. Cette serviette hygiénique présente une forme rectangulaire ou sensiblement rectangulaire, la longueur étant comprise entre 50 mm et 125 mm et la largeur étant comprise entre 30 mm et 50 mm. En particulier, cette serviette hygiénique procure une sensation de bonne mise en place et comprend une feuille de supérieure perméable au liquide et une feuille arrière imperméable au liquide et, interposée entre ces dernières, une couche absorbante pour les liquides, celle-ci étant liée par pression au niveau des bords. La différence entre l'épaisseur des zones marginales liées à la pression et l'épaisseur de la région présente à l'intérieur de cette zone marginale est comprise entre 30 νm et 1000 νm.
PCT/JP2004/012365 2003-12-08 2004-08-27 Serviette hygienique WO2005055894A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003409566A JP2005168602A (ja) 2003-12-08 2003-12-08 おりものシート
JP2003-409566 2003-12-08

Publications (1)

Publication Number Publication Date
WO2005055894A1 true WO2005055894A1 (fr) 2005-06-23

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ID=34674902

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2004/012365 WO2005055894A1 (fr) 2003-12-08 2004-08-27 Serviette hygienique

Country Status (2)

Country Link
JP (1) JP2005168602A (fr)
WO (1) WO2005055894A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002532192A (ja) * 1998-12-22 2002-10-02 ザ、プロクター、エンド、ギャンブル、カンパニー サポート用衣類の中に着用するための吸収性製品

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002532192A (ja) * 1998-12-22 2002-10-02 ザ、プロクター、エンド、ギャンブル、カンパニー サポート用衣類の中に着用するための吸収性製品

Also Published As

Publication number Publication date
JP2005168602A (ja) 2005-06-30

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