WO2011136364A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2011136364A1
WO2011136364A1 PCT/JP2011/060450 JP2011060450W WO2011136364A1 WO 2011136364 A1 WO2011136364 A1 WO 2011136364A1 JP 2011060450 W JP2011060450 W JP 2011060450W WO 2011136364 A1 WO2011136364 A1 WO 2011136364A1
Authority
WO
WIPO (PCT)
Prior art keywords
region
pressing
absorbent article
groove
pressing groove
Prior art date
Application number
PCT/JP2011/060450
Other languages
English (en)
Japanese (ja)
Inventor
幸博 伊藤
青 曹
Original Assignee
ユニ・チャーム株式会社
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 ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Publication of WO2011136364A1 publication Critical patent/WO2011136364A1/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
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
    • A61F13/4756—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level
    • 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
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15731—Treating webs, e.g. for giving them a fibrelike appearance, e.g. by embossing

Definitions

  • the present invention relates to an absorbent article.
  • the first pressing part is formed to extend in the longitudinal direction along the edge in the width direction of the absorbent body, and the second pressing part is adjacent to the first pressing part in the longitudinal direction. It is formed to extend.
  • At least one of the first pressing portion and the second pressing portion has a discontinuous dot shape, that is, does not have a shape like a pressing groove continuous in the longitudinal direction.
  • this invention is made
  • a first feature of the present invention is an absorbent article having a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorbent body disposed between the top sheet and the back sheet.
  • the 1st pressing groove and the 2nd pressing groove comprised so that it may squeeze from the said surface sheet to the said absorber along the longitudinal direction of the said absorbent article are provided,
  • the said 2nd pressing groove Is provided on the outer side in the width direction of the absorbent article than the first pressing groove, and in the first pressing groove, a plurality of first high pressure areas are provided, and the first The 1st high pressing area
  • region is provided so that the circumference
  • a second low-pressure squeezing region is provided so as to surround the periphery of the first squeezed
  • a first region continuous in the longitudinal direction is provided, at least a part of the first region is present in the
  • the first high pressure area and the first low pressure area are disposed adjacent to each other, and the second high pressure area and the second low pressure area are arranged along the width direction in the second area.
  • the gist is that there are provided a portion where the region is disposed adjacent to the region, and a portion where only the second low-compression region is disposed along the width direction.
  • FIG. 1 is a plan view seen from the skin contact surface side of the absorbent article according to the first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line aa of the absorbent article according to the first embodiment of the present invention as seen from the skin contact surface side.
  • FIG. 3 is an enlarged view of a region A of the absorbent article according to the first embodiment of the present invention.
  • FIG. 4 is a cross-sectional view taken along line bb in the enlarged view of the region A of the absorbent article according to the first embodiment of the present invention.
  • Drawing 5 is a figure for explaining the manufacturing method of the absorptive article concerning a 1st embodiment of the present invention.
  • FIG. 6 is the top view seen from the skin contact surface side of the absorbent article which concerns on the 2nd Embodiment of this invention.
  • the absorbent article 1 which concerns on the 1st Embodiment of this invention is demonstrated.
  • the absorbent article 1 according to the present embodiment is a paper diaper, an incontinence pad, a sanitary napkin, or the like.
  • the absorbent article 1 is provided with a plurality of pressing grooves including a first pressing groove 110 and a second pressing groove 120.
  • the 2nd pressing groove 120 is provided in the outer side of the width direction W of the absorbent article 1 rather than the 1st pressing groove 110.
  • region X of the absorbent article 1 which concerns on this embodiment is an area
  • the absorbent article 1 has a pair of central wing portions 40 formed so as to extend to both outer sides in the width direction W in the excretion opening contact region X.
  • the wearer wraps the central wing part 40 in the underwear, and fixes the absorbent article 1 to the underwear.
  • an intersection point Q between a line O in the longitudinal direction L passing through the center in the width direction W and a line (aa) in the width direction W passing through the center in the longitudinal direction L of the central wing portion 40 is defined. It may be “the center in the longitudinal direction L of the excretory opening contact region X”.
  • the line that connects the locations that are located most inside the width direction W in the first compressed groove 110 may be the above-described line (aa).
  • the absorbent article 1 includes a liquid-permeable top sheet 11, a liquid-permeable second sheet 12, a liquid-impermeable back sheet 13, and a central wing part 40. And the absorbent body 20 disposed between the top sheet 11 and the second sheet 12 and the back sheet 13. In addition, the absorbent article 1 which concerns on this embodiment does not need to have the 2nd sheet
  • the absorbent body 20 is composed of pulverized pulp and a polymer absorbent polymer and a core wrap that wraps both.
  • the high molecular polymer is a granular polymer of a sodium acrylate copolymer.
  • the core wrap is a sheet of any material that absorbs liquid.
  • a tissue may be used as the core wrap, or an air laid sheet in which hydrophilic fibers or pulverized pulp is formed into a sheet shape by the air laid method may be used.
  • the first pressing groove 110 and the second pressing groove 120 are configured to squeeze from the top sheet 11 to the absorbent body 20.
  • FIG. 3 shows an enlarged view of the region A of the absorbent article 1 shown in FIG. 1, and
  • FIG. 4 shows a bb cross-sectional view of the enlarged view.
  • region 110A is provided, and the 1st low pressing area 110B is provided so that the circumference
  • the 2nd pressing groove 120 several 2nd high pressing area 120A is provided, and the 2nd low pressing area 120B is provided so that the circumference
  • the thickness dimension of 110A of 1st high pressing areas is larger than the thickness dimension of 110B of 1st low pressing areas.
  • the thickness dimension of the second high pressing area 120A is larger than the thickness dimension of the second low pressing area 120B.
  • the thickness dimension was measured by the following measurement method. Specifically, in such a measurement method, the sample absorbent article 1 is impregnated with liquid nitrogen and frozen, then cut with a razor, returned to room temperature, and then subjected to an electron microscope (for example, KEYENCE VE7800). And measured at a magnification of 50 times.
  • an electron microscope for example, KEYENCE VE7800
  • the reason for freezing the sample absorbent article 1 is to prevent the thickness dimension from fluctuating due to compression during cutting.
  • 110 A of 1st high pressing areas may be arrange
  • region Y continuous in the longitudinal direction L is provided.
  • the 2nd field Z continuing in the longitudinal direction L is provided.
  • the second region Z exists in the excretory opening contact region X.
  • the first high pressure region 110A and the first low pressure region 110B are arranged adjacently along the width direction W.
  • straight lines extending in the width direction W such as the straight lines Y1 and Y2 shown in FIG. 3 are always in contact with the first high-pressure area 110A and the first low-pressure area 110B throughout the first area Y.
  • the second high pressing region 120A and the second low pressing region 120B are disposed adjacently along the width direction W, and the second direction along the width direction W.
  • a portion Z2 where only the low-pressure squeezing region 120B is disposed is provided.
  • the straight line extending in the width direction W is always in contact with the second high-pressure squeezed region 120A and the second low-pressure squeezed region 120B in the portion Z1, and is only in contact with the second low-pressure squeezed region 120B in the portion Z2.
  • each of the first high pressure areas 110 ⁇ / b> A may be configured to be smaller than each of the second high pressure areas 120 ⁇ / b> A.
  • each of 1st high pressing area 110A may have a different magnitude
  • each of the second high pressing areas 120A may have a different size and shape.
  • regions and the side edge 110E of the 1st pressing groove 110 contact is the part which 120A of 2nd high pressing area
  • region 110B and the side edge 110E of the 1st pressing groove 110 are contacting is the contact between the 2nd low pressing area 120B and the side edge 120E of the 2nd pressing groove 120. You may be comprised so that it may become shorter than length L4 of the part which is doing.
  • the mass of the absorbent body 20 per unit area in the first compressed groove 110 (that is, the basis weight of the absorbent body 20) is the mass of the absorbent body 20 per unit area in the second compressed groove 120 (that is, the absorbent body). It may be configured to be larger than 20 weight per unit area).
  • the number of sheets arranged closer to the skin contact surface than the absorbent body 20 among the sheets squeezed in the first squeezing groove 110 is the number of sheets squeezed in the second squeezing groove 120. You may be comprised so that it may become more than the number of the sheets arrange
  • seat 12 are arrange
  • regulated by the outer edge 20E of the absorber 20 the shape of the curve formed by the side edge 110E of the 1st pressing groove 110, and the side edge of the 2nd pressing groove 120 You may be comprised so that the shape of the curve formed by 120E may differ.
  • the absorbent body 20 is generated by wrapping the laminated body 20A of pulverized pulp and absorbent polymer with a core wrap 20B.
  • Step S102 the absorbent body 20 is disposed on the web 11A for the topsheet 11 that is continuously conveyed, and the web 11A for the topsheet 11 and the absorbent body 20 are bonded together with a hot melt adhesive.
  • step S103 a plurality of compressed grooves are formed by performing compression processing using the pressure rolls 100A and 100B on the web 11A for the topsheet 11 and the absorbent body 20 that are bonded together.
  • step S104 the web 13A for the back sheet 13 is bonded to the web 11A for the top sheet 11 and the absorbent body 20 subjected to the compression process.
  • step S105 the absorbent article 1 is generated by cutting the bonded web 11A for the front sheet 11, the absorbent body 20, and the web 13A for the back sheet 13 into a predetermined size and shape using a product cutter. To do.
  • the squeezing region easily draws bodily fluid
  • the bodily fluid dropped on the excretion opening contact region X spreads in the width direction W direction and in the longitudinal direction L. It is guided in the longitudinal direction L by the continuous first pressing groove 110 and second pressing groove 120.
  • 110 A of 1st high pressing areas and the 1st low pressing area 110B are arrange
  • the bending stiffness of the entire first compressed groove 110 tends to be more uniform, and when the pressure is applied to the side surface of the absorbent article 1 by the wearer's thigh, the shape of the first compressed groove 110 is maintained. It is easy to bend at.
  • region 120B are arrange
  • portion Z1 having a high bending stiffness and the portion Z2 having a soft bending stiffness are mixed in the second compressed groove 120, when pressure is applied to the side surface of the absorbent article 1 by the wearer's thigh, It is easy to bend without maintaining the shape of the 2 pressing grooves 120.
  • regions and the side edge 110E of the 1st pressing groove 110 contact is 2nd high pressing area
  • the side edge 110E of the first compressed groove 110 there are many portions where the thickness greatly differs from the periphery of the first compressed groove 110, and pressure is applied to the side surface of the absorbent article 1 by the wearer's thigh. And it becomes easy to bend in the state where the shape of the 1st pressing groove 110 was maintained.
  • the side edge 120E of the second pressing groove 120 there are many portions where the thickness does not differ greatly from the periphery of the second pressing groove 120, and pressure is applied to the side surface of the absorbent article 1 by the wearer's thigh. In this case, it becomes easier to bend without maintaining the shape of the second compressed groove 120.
  • channel 110 is comprised since each of the 1st high pressing area
  • the overall bending stiffness can be made more uniform, and the portion Z1 having a high bending stiffness and the portion Z2 having a soft bending stiffness can be generated in the second compressed groove 120.
  • the mass of the absorbent body 20 per unit area in the first compressed groove 110 is larger than the mass of the absorbent body 20 per unit area in the second compressed groove 120. Therefore, since the first compression groove 110 is more rigid than the second compression groove 120, when the pressure is applied to the side surface of the absorbent article 1 by the wearer's thigh, the first compression groove 110 is And it becomes easy to bend in the state which maintained the groove shape, and the 2nd pressing groove 120 becomes easy to bend without maintaining a groove shape.
  • positioned in the skin contact surface side rather than the absorber 20 among the sheets squeezed within the 1st pressing groove 110 is as follows. Since the number of sheets squeezed in the second squeezing groove 120 is greater than the number of sheets disposed on the skin contact surface side of the absorbent body 20, the first squeezing groove 110 is the second squeezing groove 120. Therefore, when pressure is applied to the side surface of the absorbent article 1 by the wearer's thigh, the first compressed groove 110 is easily bent in a state in which the groove shape is maintained. The groove 120 is easily bent without maintaining the groove shape.
  • regulated by the outer edge 20E of the absorber 20 the shape of the curve formed by the side edge 110E of the 1st pressing groove 110, and a 2nd pressing groove Since the shape of the curve formed by the side edges 120E of 120 is different, when pressure is applied to the side surface of the absorbent article 1 by the wearer's thigh, it becomes difficult to bend along each curve.
  • the edge part of the 2nd pressing groove 120 may be arrange

Abstract

Dans l'article absorbant (1) selon l'invention, une première région (Y) est prévue, laquelle est continue dans le sens de la longueur (L) dans une première rainure comprimée (110) ; au moins une partie de la première région (Y) est présente dans une région (X) en contact avec un orifice excrétoire ; dans une seconde rainure comprimée (120), une seconde région (Z) est prévue, laquelle est continue dans le sens de la longueur (L) ; au moins une partie de la seconde région (Z) est présente dans la région (X) en contact avec un orifice excrétoire ; dans toute la région à l'intérieur de la première région (Y), une première région hautement comprimée (110A) et une première région faiblement comprimée (110B) sont disposées de manière adjacente l'une à l'autre dans le sens de la largeur (W) ; et dans la seconde région (Z), sont prévues une partie (Z1) dans laquelle une seconde région hautement comprimée (120A) et une seconde région faiblement comprimée (120B) sont disposées de manière adjacente l'une à l'autre dans le sens de la largeur (W) et une partie (Z2) dans laquelle seule la seconde région faiblement comprimée (120B) est disposée dans le sens de la largeur (W).
PCT/JP2011/060450 2010-04-30 2011-04-28 Article absorbant WO2011136364A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-105733 2010-04-30
JP2010105733A JP5391140B2 (ja) 2010-04-30 2010-04-30 吸収性物品

Publications (1)

Publication Number Publication Date
WO2011136364A1 true WO2011136364A1 (fr) 2011-11-03

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PCT/JP2011/060450 WO2011136364A1 (fr) 2010-04-30 2011-04-28 Article absorbant

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JP (1) JP5391140B2 (fr)
CN (2) CN102232891A (fr)
WO (1) WO2011136364A1 (fr)

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WO2013099463A1 (fr) * 2011-12-28 2013-07-04 ユニ・チャーム株式会社 Article absorbant
EP3156017A4 (fr) * 2014-06-13 2018-02-07 Daio Paper Corporation Produit absorbant
US10342716B2 (en) * 2014-06-13 2019-07-09 Daio Paper Corporation Absorbent article

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Publication number Priority date Publication date Assignee Title
WO2013099463A1 (fr) * 2011-12-28 2013-07-04 ユニ・チャーム株式会社 Article absorbant
JP2013135824A (ja) * 2011-12-28 2013-07-11 Unicharm Corp 吸収性物品
CN104023687A (zh) * 2011-12-28 2014-09-03 尤妮佳股份有限公司 吸收性物品
EP3156017A4 (fr) * 2014-06-13 2018-02-07 Daio Paper Corporation Produit absorbant
US10342716B2 (en) * 2014-06-13 2019-07-09 Daio Paper Corporation Absorbent article

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