WO2016121977A1 - Couche jetable de type culotte - Google Patents

Couche jetable de type culotte Download PDF

Info

Publication number
WO2016121977A1
WO2016121977A1 PCT/JP2016/052807 JP2016052807W WO2016121977A1 WO 2016121977 A1 WO2016121977 A1 WO 2016121977A1 JP 2016052807 W JP2016052807 W JP 2016052807W WO 2016121977 A1 WO2016121977 A1 WO 2016121977A1
Authority
WO
WIPO (PCT)
Prior art keywords
region
elastic film
sheet
sheet layer
stretchable
Prior art date
Application number
PCT/JP2016/052807
Other languages
English (en)
Japanese (ja)
Inventor
美奈 高石
Original Assignee
大王製紙株式会社
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
Priority claimed from JP2015017498A external-priority patent/JP5980355B2/ja
Priority claimed from JP2015070294A external-priority patent/JP5918876B1/ja
Priority claimed from JP2015195457A external-priority patent/JP5980399B1/ja
Application filed by 大王製紙株式会社 filed Critical 大王製紙株式会社
Publication of WO2016121977A1 publication Critical patent/WO2016121977A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/344—Stretching or tensioning the joint area during joining
    • 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
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/083—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil
    • B29C65/086—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using a rotary sonotrode or a rotary anvil using a rotary anvil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82—Testing the joint
    • B29C65/8253—Testing the joint by the use of waves or particle radiation, e.g. visual examination, scanning electron microscopy, or X-rays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • B29C66/7294—Non woven mats, e.g. felt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B29C66/81429—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/4871—Underwear
    • B29L2031/4878—Diapers, napkins

Definitions

  • the present invention that has solved the first problem is as follows.
  • An exterior body that individually or integrally configures the front body and the back body, and an interior body including an absorbent body that is fixed to the inner surface of the exterior body so as to extend from the front body to the back body,
  • a pants-type disposable diaper having a waist opening and a pair of left and right leg openings formed by joining side edges of the outer body of the front body and both side edges of the outer body of the rear body to form a side seal part
  • the area of at least the crotch part in the front-rear direction is an expansion / contraction area that can be expanded and contracted in the width direction
  • an elastic film is laminated between the first sheet layer and the second sheet layer, and the elastic film is stretched in the width direction
  • the first sheet layer and the second sheet layer Is an elastic film stretchable structure bonded directly or indirectly with a large number of sheet bonding portions arranged at intervals in the width direction and the
  • the stretchable region having the elastic film stretchable structure extends on both front and rear sides of the crotch portion,
  • the absorbent body has a low basis weight part having a lower basis weight than the surroundings in a shape in which the width gradually or continuously widens from the waist opening side toward the crotch part side,
  • the pants-type disposable diaper according to any one of claims 1 to 7.
  • the non-absorbent body side portion of the interior body contracts to the center in the width direction due to the shrinkage of the stretchable region of the exterior body. Accordingly, the rising position of the three-dimensional gather moves to the center in the width direction and rises from a position closer to the side edge of the constricted portion of the absorber, i.e., a position suitable for the width of the wearer's crotch.
  • the fit to the root is improved and the leakage prevention property is high.
  • it does not have the elongate elastic expansion-contraction member extended along leg opening a structure is simple and a softness
  • the gather elastic member 96 materials such as styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon, polyester and the like that are usually used can be used. In order to make it difficult to see from the outside, it is preferable that the thickness is 925 dtex or less, the tension is 150 to 350%, and the interval is 7.0 mm or less. As the gather elastic member 96, a tape-like member having a certain width can be used in addition to the thread-like shape shown in the figure.
  • the constituent material of the first sheet layer 20A and the second sheet layer 20B can be used without particular limitation as long as it is a sheet, but it is preferable to use a nonwoven fabric from the viewpoint of air permeability and flexibility.
  • the nonwoven fabric is not particularly limited as to what the raw fiber is.
  • synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, natural fibers such as cotton, and mixed fibers and composite fibers using two or more of them. Etc. can be illustrated.
  • the nonwoven fabric may be manufactured by any processing.
  • the elastic limit elongation at each part can be determined as appropriate, but in the normal case, it is preferably 130 to 200% (especially 150 to 180%) in the fixing region 15 of the interior body, and 200% in the surrounding region 16. It is preferable to make the above (especially 265 to 295%).
  • planar arrangement of the sheet joint portion 40 and the through holes 31 can be determined as appropriate, a planar arrangement that is regularly repeated is preferable, and an oblique lattice shape as shown in FIG. Hexagonal lattice shape as shown (these are also called zigzag shapes), square lattice shape as shown in FIG. 15 (c), rectangular lattice shape as shown in FIG. 15 (d), as shown in FIG. 15 (e) Parallel body lattice (as shown in the figure, two groups are provided so that a large number of groups of parallel diagonal rows intersect each other), etc.
  • such a joining structure has an elastic film 30 between the first sheet layer 20 ⁇ / b> A and the second sheet layer 20 ⁇ / b> B with an approximately uniform elongation rate in a direction perpendicular to the expansion / contraction direction.
  • the elastic film 30 is melted at a number of locations to form the through-holes 31 by welding with a predetermined pattern of the sheet joint portion 40 while being stretched in the expansion / contraction direction.
  • the melt of the elastic film 30 is solidified and can be manufactured simply and efficiently using a method of joining the first sheet layer 20A and the second sheet layer 20B.
  • the shape / area of each sheet joint portion 40 and the shape / area of each through hole 31 are substantially equal in the natural length state.
  • the production line shown in FIG. 18 has a transverse flow configuration in which the diaper width direction is the MD direction (machine direction, line flow direction).
  • the inner body 10 is attached to the outer body 20, it is folded at the center in the front-rear direction to join both side portions of the front and rear outer bodies 20 and to be divided into individual diapers DP.
  • the same names and symbols as those of the members after manufacture are used for the members that are continuous in the manufacturing process.
  • the fibers 20f of the first sheet layer 20A and the second sheet layer 20B continuous from the periphery of the sheet bonding portion 40 remain, and the first sheet layer 20A.
  • the first sheet layer 20A and the second sheet layer 20B are joined by the melt-solidified material 30m of the elastic film 30 that has permeated and solidified over the second sheet layer 20B, and the first sheet layer 20A and the second sheet layer 20B are bonded to each other. Not only the biting of the melt-solidified material 30m of the elastic film 30 is good, but the strength of the first sheet layer 20A and the second sheet layer 20B is not easily lowered, so that the peel strength is further improved.
  • the other regions are non-stretchable regions whose elastic limit elongation is 130% or less. Or may be a stretchable region by an elongated elastic member.
  • each sheet bonding portion 40 may be determined as appropriate. However, if the size is too large, the hardness of the sheet bonding portion 40 has an effect on the touch. If the size is too small, the bonding area is small and the materials are sufficiently bonded to each other. In general, the area of each sheet joint portion 40 is preferably about 0.14 to 3.5 mm 2 because it cannot be performed. The area of the opening of each through hole 31 may be equal to or larger than the sheet joint portion because the sheet joint portion is formed through the through hole 31, but is about 1 to 1.5 times the area of the sheet joint portion. It is preferable.
  • the first sheet layer 20A and the second sheet layer 20B are between the first sheet layer 20A and the second sheet layer 20B under the condition that the melting point of at least one of the first sheet layer 20A and the second sheet layer 20B is higher than the melting point of the elastic film 30. It can be manufactured by sandwiching the elastic film 30, pressurizing and heating a portion to be the sheet bonding portion 40, and melting at least one of the first sheet layer 20 ⁇ / b> A and the second sheet layer 20 ⁇ / b> B and the elastic film 30.
  • the processing method examples include known methods such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, and a point bond method.
  • the basis weight is preferably about 12 to 20 g / m 2 .
  • a part or all of the first sheet layer 20A and the second sheet layer 20B may be a pair of layers in which one material is folded and faced. For example, as shown in the figure, in the waist end region 23, the constituent material located outside is the second sheet layer 20B, and the folded portion 20C that is folded back to the inner surface side at the waist opening edge is the first sheet layer 20A.
  • the stretchable region 80 and the non-stretchable region 70 can be formed by the presence or absence of a portion where the elastic film 30 does not continue linearly along the width direction.
  • the non-stretchable region 70 preferably has an elastic limit elongation in the width direction of 120% or less (preferably 110% or less, more preferably 100%).
  • “Elastic limit elongation” means the elongation of the elastic limit in the expansion / contraction direction (in other words, the state in which the first sheet layer and the second sheet layer are completely expanded), and the length at the elastic limit is the natural length. It is expressed as a percentage when 100% is assumed.
  • “Area ratio” means the ratio of the target portion to the unit area, and the sum of the target portions (for example, the opening of the sheet joint portion 40 and the through hole 31) in the target region (for example, the stretchable region 80 and the non-stretchable region 70).
  • “Thickness” other than the above is automatically measured using an automatic thickness measuring instrument (KES-G5 handy compression measurement program) under the conditions of load: 10 gf / cm 2 and pressure area: 2 cm 2 .
  • ⁇ "Tensile strength” and “Tensile elongation (breaking elongation)” conform to JIS K7127: 1999 "Plastics-Test method for tensile properties-” except that the test piece is rectangular with a width of 35 mm x length of 80 mm.
  • the initial chuck interval (distance between marked lines) is 50 mm, and the tensile speed is 300 mm / min.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Textile Engineering (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Toxicology (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

L'invention a pour but de fournir une couche jetable de type culotte présentant une faible largeur d'entrejambe et ayant une apparence plus similaire à celle d'un sous-vêtement. Pour résoudre ce problème, une zone (15A) d'au moins une section d'entrejambe dans le sens avant-arrière, dans les limites d'une zone de fixation (15) d'un corps intérieur (10) dans un corps extérieur (20), est formée comme une zone étirable (80) pouvant s'étirer dans le sens de la largeur. La zone étirable (80) est formée comme une structure de film élastique étirable (20X) dans laquelle une première couche de feuille (20A) et une seconde couche de feuille (20B) sont liées directement ou indirectement avec une pluralité de sections de liaison de feuilles (40) alignées, avec des espaces entre elles, dans la direction de la largeur et dans le sens avant-arrière, dans un état dans lequel un film élastique (30) est stratifié entre la première couche de feuille (20A) et la seconde couche de feuille (20B) et le film élastique (30) est étiré dans la direction de la largeur.
PCT/JP2016/052807 2015-01-30 2016-01-29 Couche jetable de type culotte WO2016121977A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2015017498A JP5980355B2 (ja) 2015-01-30 2015-01-30 吸収性物品の伸縮構造、及びこれを用いたパンツタイプ使い捨ておむつ
JP2015-017498 2015-01-30
JP2015070294A JP5918876B1 (ja) 2015-03-30 2015-03-30 パンツタイプ使い捨ておむつ
JP2015-070294 2015-03-30
JP2015-195457 2015-09-30
JP2015195457A JP5980399B1 (ja) 2015-09-30 2015-09-30 パンツタイプ使い捨ておむつ

Publications (1)

Publication Number Publication Date
WO2016121977A1 true WO2016121977A1 (fr) 2016-08-04

Family

ID=56543579

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/052807 WO2016121977A1 (fr) 2015-01-30 2016-01-29 Couche jetable de type culotte

Country Status (1)

Country Link
WO (1) WO2016121977A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110461288A (zh) * 2017-04-03 2019-11-15 株式会社光洋 吸收性物品及吸收性物品的制造方法
EP3501802A4 (fr) * 2016-08-19 2020-04-01 Daio Paper Corporation Procédé de fabrication de feuille étirable

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3675676B2 (ja) * 1999-06-28 2005-07-27 ユニ・チャーム株式会社 使い捨ておむつ
WO2008126708A1 (fr) * 2007-04-10 2008-10-23 Zuiko Corporation Procédé de production d'article à porter jetable
JP2008296585A (ja) * 2008-07-08 2008-12-11 Daio Paper Corp 伸縮性シートの製造方法およびこれを用いた紙おむつ
JP4508885B2 (ja) * 2005-01-20 2010-07-21 花王株式会社 吸収性物品
JP4724587B2 (ja) * 2006-03-31 2011-07-13 大王製紙株式会社 吸収性物品
JP2012070868A (ja) * 2010-09-28 2012-04-12 Daio Paper Corp 使い捨ておむつ
JP4934835B2 (ja) * 2007-04-10 2012-05-23 株式会社瑞光 積層伸縮シートの製造方法
JP5028654B2 (ja) * 2007-04-10 2012-09-19 株式会社瑞光 積層伸縮シートおよびその製造方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3675676B2 (ja) * 1999-06-28 2005-07-27 ユニ・チャーム株式会社 使い捨ておむつ
JP4508885B2 (ja) * 2005-01-20 2010-07-21 花王株式会社 吸収性物品
JP4724587B2 (ja) * 2006-03-31 2011-07-13 大王製紙株式会社 吸収性物品
WO2008126708A1 (fr) * 2007-04-10 2008-10-23 Zuiko Corporation Procédé de production d'article à porter jetable
JP4934835B2 (ja) * 2007-04-10 2012-05-23 株式会社瑞光 積層伸縮シートの製造方法
JP5028654B2 (ja) * 2007-04-10 2012-09-19 株式会社瑞光 積層伸縮シートおよびその製造方法
JP2008296585A (ja) * 2008-07-08 2008-12-11 Daio Paper Corp 伸縮性シートの製造方法およびこれを用いた紙おむつ
JP2012070868A (ja) * 2010-09-28 2012-04-12 Daio Paper Corp 使い捨ておむつ

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3501802A4 (fr) * 2016-08-19 2020-04-01 Daio Paper Corporation Procédé de fabrication de feuille étirable
US10869784B2 (en) 2016-08-19 2020-12-22 Daio Paper Corporation Method for manufacturing stretchable sheet
CN110461288A (zh) * 2017-04-03 2019-11-15 株式会社光洋 吸收性物品及吸收性物品的制造方法
CN110461288B (zh) * 2017-04-03 2021-03-05 株式会社光洋 吸收性物品

Similar Documents

Publication Publication Date Title
JP6240733B1 (ja) 使い捨て着用物品及びその製造方法
WO2016121975A1 (fr) Article absorbant et son procédé de fabrication
KR102519506B1 (ko) 흡수성 물품 및 그 제조 방법
WO2016121974A1 (fr) Structure d'étirement pour article absorbant, et couche jetable de type sous-vêtement utilisant celle-ci
JP6331199B2 (ja) 吸収性物品
JP5967736B1 (ja) 吸収性物品
JP6049228B1 (ja) 吸収性物品
WO2017163754A1 (fr) Procédé de formation d'une structure étirable de film élastique, et article absorbant
JP5980367B1 (ja) 吸収性物品の製造方法
WO2016158750A1 (fr) Article absorbant et procédé de production associé
JP2016193199A5 (fr)
JP2016193199A (ja) 吸収性物品
JP2017064225A5 (fr)
WO2017169381A1 (fr) Couche jetable de type culotte
JP5918877B1 (ja) 吸収性物品及びその製造方法
WO2017221640A1 (fr) Couche jetable de type culotte
JP6360950B1 (ja) 使い捨て着用物品及びその製造方法
JP2016190031A (ja) パンツタイプ使い捨ておむつ
JP6137712B2 (ja) パンツタイプ使い捨ておむつ
JP5967735B1 (ja) パンツタイプ使い捨ておむつ
JP6370965B1 (ja) パンツタイプ使い捨ておむつ
WO2016121977A1 (fr) Couche jetable de type culotte
JP6396549B1 (ja) 使い捨て着用物品
JP5918876B1 (ja) パンツタイプ使い捨ておむつ
JP5956667B1 (ja) パンツタイプ使い捨ておむつ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16743580

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16743580

Country of ref document: EP

Kind code of ref document: A1