WO2008069281A1 - 吸収性物品 - Google Patents
吸収性物品 Download PDFInfo
- Publication number
- WO2008069281A1 WO2008069281A1 PCT/JP2007/073612 JP2007073612W WO2008069281A1 WO 2008069281 A1 WO2008069281 A1 WO 2008069281A1 JP 2007073612 W JP2007073612 W JP 2007073612W WO 2008069281 A1 WO2008069281 A1 WO 2008069281A1
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- WO
- WIPO (PCT)
- Prior art keywords
- joint
- region
- joining
- chassis
- bonding
- Prior art date
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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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
- A61F13/15739—Sealing, e.g. involving cutting
-
- 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
- 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
-
- 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
- A61F13/4963—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs characterized by the seam
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- 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
-
- 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
- B29C66/01—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
- B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
- B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
-
- 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
- B29C66/431—Joining the articles to themselves
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/2481—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including layer of mechanically interengaged strands, strand-portions or strand-like strips
Definitions
- the present invention relates to an absorbent article.
- Conventional absorbent articles that absorb excretion excreted from the body include, for example, sanitary napkins, disposable diapers, and training pants. All of these absorbent articles are properly used according to the wearer's lifestyle, care level, etc., and the liquid-permeable top sheet, the liquid-impermeable back sheet, the top sheet and the back sheet And, when worn, the excrement such as excreted urine is held by the absorber via the top sheet, and the excrement is absorbed into the absorbent article by the back sheet. It has a structure that prevents it from leaking outside.
- a pants-type disposable diaper is formed into a pants-type having a trunk opening and a pair of leg openings by joining the opposite side edges of the front waistline area and the rear waistline area in advance by heat sealing or the like. used.
- This pants-type disposable diaper is widely used from infants to adult incontinence.
- such a pants-type disposable diaper has a strong connection between the front waistline area and the rear waistline area during use at the joints on both side edges, and after use, the front waistline area. It is required that the rear waistline region can be easily peeled off.
- sheet-like parts specialized in stretchability and texture have been used to improve the added value of diapers that use low-weight or low-weight materials from the viewpoint of low cost and low environmental impact. A material may be used, and such a sheet-like member reduces the durability of the joint.
- the durability of the joint has a property that it is greatly influenced by the basis weight, the type and combination of the sheet-like members to be joined.
- the basis weight of the sheet-like member The lower the strength, the lower the durability of the joint. Therefore, in order to use a sheet-like member with a low basis weight, it was necessary to join with a joint pattern that can efficiently increase the durability of the joint.
- Patent Document 1 Japanese Patent Application Laid-Open No. 07-227407
- Disposable diapers are disclosed in which sheet-like members are joined together by a line and one or more longitudinal bond lines.
- a sheet laminated body including an absorbent body is folded back and forth, and both right and left side portions are joined along side edges to form a joined portion.
- the joint consists of a plurality of horizontal adhesive lines and one or more vertical adhesive lines formed by a heat seal, and the horizontal adhesive lines are intermittently arranged in a row or two in the vertical direction. They are arranged in rows, with the vertical bond lines being in contact with or intersecting at least one of the horizontal bond lines.
- the disposable diaper described in Patent Document 1 is orthogonal to the longitudinal direction in which the joining region is to be peeled off, for example, when the longitudinal adhesive line is provided on the outer edge side of the joining portion in the disposable diaper.
- the longitudinal bond line facing the lateral force! / Is in contact with the lateral bond line.
- the joint portion facing the lateral force is dispersed, and a sufficient increase in bonding strength cannot be obtained even if the bonding area is increased! /, There was a problem!
- the adhesive line when the longitudinal adhesive line is provided at the inner end of the joint portion of the disposable diaper, the adhesive line exhibits sufficient strength against the lateral force. Since it will act as a cutting guide line in the longitudinal direction of the joint part, when the wearer pulls up the disposable diaper when wearing it, etc., when a force is applied in the longitudinal direction, the force is small. There was a problem that the joint may be torn.
- the present invention has been made in view of the above problems, and in an absorbent article It aims at providing the absorbent article which the joint strength of sheet-like members improved. Means for solving the problem
- the present inventors have specialized in low-weight sheet-like members, stretchability, texture, and the like by joining the joint portions of the absorbent article with a predetermined pattern. Even when a sheet-like member or the like is used, the present inventors have found that the bonding strength at the bonded portion is improved and completed the present invention. Specifically, it aims to provide the following disposable diapers.
- a plurality of seats constituting a chassis having at least a front waistline area and a rear waistline area and having a width direction and a longitudinal direction perpendicular to the width direction, and the front waistline area,
- the rear waist area is a joining region joined along both side edges, and includes at least a first joining region closer to the inside of the chassis and a second joining region closer to the outside of the chassis, In the first joining region, a plurality of first joining portions are continuously formed in the longitudinal direction, and in the second joining region, a plurality of second joining portions are continuously formed in the longitudinal direction.
- An absorbent article in which a total area of the plurality of first bonding portions in one bonding region is smaller than a total area of the second bonding portions in the second bonding region.
- the first interval in the predetermined direction between the adjacent first joint portions is an adjacent second joint among the plurality of second joint portions.
- the plurality of sheets include one or more nonwoven fabrics, and in the joining region, the fibers constituting the nonwoven fabric connect at least the first joining portion and the second joining portion that are close to each other.
- the absorbent article according to any one of (1) to (3), which is oriented as described above.
- the joining region is a joining region in which the front waist region and the rear waist region are joined along both side edges, and at least a first joining region closer to the inside of the chassis.
- a plurality of third joints are formed continuously in the direction, The sum of the areas of the plurality of third joints is smaller than the sum of the areas of the second joints in the second joint region, and the absorption according to (1) to (4)! / Sex goods.
- each joint region is a region between lines connecting both end portions in the width direction perpendicular to the predetermined direction in each joint portion in the predetermined direction.
- an absorbent article having improved bonding strength between sheet-like members in the absorbent article can be provided.
- FIG. 1 is a perspective exploded view showing a developed state of a pants-type disposable diaper according to an embodiment of the present invention.
- FIG. 2 is a diagram showing a pants-type disposable diaper according to an embodiment of the present invention.
- FIG. 3A is a diagram showing a joining pattern in a joining part of the disposable diaper of the present invention.
- FIG. 3B is a diagram showing a joining pattern in the joining part of the disposable diaper of the present invention.
- FIG. 4 is a view showing another form of a bonding pattern.
- FIG. 5 is a diagram showing another form of a bonding pattern.
- the form for carrying out the present invention is a force for explaining a pants-type disposable diaper.
- the form for carrying out the present invention is not limited to this. It may be used for a sanitary napkin joint mainly intended to absorb menstrual blood excreted from the vaginal opening.
- the form for carrying out the present invention may be an absorbent article comprising a liquid-retaining absorbent body and a plurality of sheets arranged so that at least a part of the outer edge is laminated. Yes.
- the disposable diaper 1 is used, the The overall structure of the mud will be described.
- the side of the disposable diaper 1 that is directed to the wearer's body is the skin contact surface side, and the side opposite to the skin contact surface side is the non-skin contact surface side.
- the disposable diaper 1 as an absorbent article forms the outer shape of the disposable diaper 1, and is formed of a chassis 2 and a chassis 2 that are formed into a pants shape when worn.
- a liquid-permeable surface sheet 3 that is provided on the skin contact surface side and that is formed in a substantially vertically long shape that forms the surface layer, and a substantially vertically long image that is provided on the non-skin contact surface side of the chassis 2 and forms the back surface layer.
- the top sheet 3 is disposed on the body side and is brought into contact with the excretion portion of the wearer.
- the entire surface sheet 3 may be liquid permeable or may be partially liquid permeable.
- the top sheet 3 may be composed of a single sheet-like member, or a plurality of sheet-like members may be bonded together.
- the absorber 4 has liquid retention and is formed in a substantially vertically long shape.
- substantially long includes a substantially rectangular shape having a longitudinal direction LD and a width (short) direction WD, and a part of both sides of the longitudinal direction LD is depressed in the center direction in the longitudinal direction LD. And those that are raised in the opposite direction to the center. That is, the absorbent body 4 includes a part of the longitudinal direction LD of the absorbent body 4 that has a different length in the width direction WD.
- the absorbent body 4 may be disposed in a state of being wrapped in a tissue (not shown) or a hydrophilic nonwoven fabric (not shown). Further, when the absorbent body 4 is encased in a hydrophilic nonwoven fabric, the absorbent body 4 may be configured such that the surface sheet 3 is not used or the surface sheet 3 is used only partially. This makes it possible to reduce production costs, for example.
- the back sheet 5 may be a sheet obtained by bonding a non-woven fabric or the like to the non-skin contact surface side of the back sheet 5. In this way, it is preferable to bond a nonwoven fabric or the like to the non-skin contact surface side of the back sheet 5 because the touch when worn by the wearer is improved. Further, when a film is used for the back sheet 5, it is preferable to bond a nonwoven fabric or the like to the film because, for example, generation of unpleasant sounds resulting from film rubbing can be prevented.
- the back sheet 5 is a force arranged on the non-skin contact surface side of the wearer.
- the present invention is not limited to this, and may be provided between the absorber 4 and the chassis 2 or between the respective sheet-like members when the chassis 2 is formed of a plurality of sheet-like members.
- the chassis 2 has a front waistline region 21, a rear waistline region 22, and a crotch region 23 formed between the front waistline region 21 and the rear waistline region 22 when worn.
- the chassis 2 is a so-called composite sheet mainly composed of a sheet 24 constituting the outer shape of the disposable diaper 1 and a sheet 25 bonded to each of the front waistline region 21 and the rear waistline region 22 of the chassis 2.
- the composite sheet is a sheet-like member in which a stretchable nonwoven fabric and a non-stretchable nonwoven fabric are laminated (joined).
- the sheet 24 which is a non-stretchable non-woven fabric is, for example, a spunbond non-woven fabric made of polypropylene fibers, and can use a sheet-like member having a basis weight of 19 g / m 2 .
- the sheet 25, which is a stretchable nonwoven fabric is a spunbond nonwoven fabric made of, for example, a mixed fiber of polypropylene and polyurethane, and has a polypropylene basis weight of 22 g / m 2 and a polyurethane basis weight of 13 g / m 2 .
- a shaped member can be used.
- the sheet 25 when the sheet 25 is bonded to the sheet 24, the sheet 25 is stretched 20 times in the width direction WD of the disposable diaper 1, and the longitudinal direction LD of the disposable diaper 1 is 0. 6 Shelled in the sheet 24 by hot melt, thermal welding, ultrasonic welding, etc., in a reduced state of 5 times, and joined.
- the chassis 2 has a predetermined stretchability by bonding the sheet 24 and the sheet 25 together.
- a thread-like elastic member 81 may be arranged in the peripheral region of the trunk opening 8 in order to make the trunk opening 8 elastic. As a result, the disposable diaper 1 forms a waistline gear. Further, the disposable diaper 1 may be provided with a thread-like elastic member (not shown) in order to make the leg opening 7 elastic in the peripheral region of the leg opening 7. As a result, the disposable diaper 1 forms a redder gather.
- the disposable diaper 1 is formed on the both side edges (outer edges) of the front waistline region 21 and the rear waistline region 22 of the chassis 2 in the waistline direction, and is laminated on the stacked portions so as to overlap each other.
- the joining regions 9L and 9R formed substantially vertically long the front waistline region 21 and the rear waistline region 22 of the chassis 2 are joined with a predetermined joining pattern.
- a so-called pant shape is formed.
- the disposable diaper 1 is formed with a torso opening 8 positioned around the abdomen of the wearer and a pair of leg openings 7 and 7 positioned on each of the wearer's legs when worn.
- the total basis weight of the compatible components at the joint is 40 g / m 2 to 90 g / m 2 .
- the bonding region 9L has the same configuration as the bonding region 9R although it is hidden in the drawing and is not shown.
- the first bonding regions 91L and 91R, the second bonding regions 92L and 92R, which extend in the longitudinal direction LD of the disposable diaper 1 and are arranged in parallel with the width direction WD and substantially vertically long In addition, third junction regions 93L and 93R are provided.
- the first bonding regions 91L and 91R, the second bonding regions 92L and 92R, and the third bonding regions 93L and 93R are regions divided to distinguish each arrangement of bonding portions 94, 95, and 96 described later, It is a continuous region including the respective joints arranged in the longitudinal direction at a predetermined interval.
- the first joining regions 91L and 91R are located inside the disposable diaper 1 in the joining regions 9L and 9R, in other words, closer to the inside of the chassis 2, that is, the center line that bisects the disposable diaper 1 in the width direction WD. Located on the C side (see Figure 1).
- the third joining regions 93L and 93R are disposed outside the disposable diaper 1 in the joining regions 9L and 9R, that is, on the side edge side in the width direction WD of the disposable diaper 1.
- the second junction regions 92L and 92R are disposed between the first junction regions 91L and 91R and the third junction regions 93L and 93R.
- the second bonding regions 92L and 92R are disposed closer to the outside of the chassis 2 than the first bonding regions 91L and 91R, and the third bonding regions 93L and 93R are more than the second bonding regions 92L and 92R.
- the configuration is arranged near the outside of the chassis 2.
- the first junction regions 91L and 91R, the second junction regions 92L and 92R, and the third junction regions 93L and 93R are provided in the junction regions 9L and 9R, respectively. Is not limited to this. For example, only the first bonding regions 91L and 91R and the second bonding regions 92L and 92R may be provided.
- first joint regions 91L and 91R a plurality of first joint portions 94 are formed by ultrasonically sealing each of the front waistline region 21 and the rear waistline region 22 of the chassis 2, and the first joint regions They are arranged in the longitudinal direction LD of 91L and 91R.
- the second joining regions 92L and 92R include the chassis 2
- a plurality of second joints 95 are arranged in the longitudinal direction LD of the second joint regions 92L and 92R by ultrasonically sealing each of the front waistline region 21 and the rear waistline region 22.
- a plurality of third joint portions 96 are formed by ultrasonically sealing each of the front waistline region 21 and the rear waistline region 22 of the chassis 2 to form third joint regions 93L and 93R.
- the chassis 2 is a force obtained by joining the front waistline region 21 and the rear waistline region 22 with an ultrasonic seal, but the present invention is not limited to this.
- each of the front waistline region 21 and the rear waistline region 22 may be joined using heat sealing.
- the distance between the arrangement in the width direction WD between the first junction 94 in the first junction region 91L or 91R and the second junction 95 in the second junction region 92L or 92R is larger than 0 1 It is preferably 5 mm or less.
- the distance force is equal to or less than SO, a so-called longitudinal cut that continuously breaks in the longitudinal direction LD is likely to occur, which is not preferable.
- the distance j is larger than 1.5 mm, it is not preferable because the joint strength of the first joint regions 91L, 91R and the second joint regions 92L, 92R described later may not be improved.
- the interval k in the width direction WD between the second junction 95 in the second junction regions 92L and 92R and the third junction 96 in the third junction regions 93L and 93R can be set to the same interval.
- the first joint portion 94, the second joint portion 95, and the third joint portion 96 are respectively in the first joint regions 91L and 91R, the second joint regions 92L and 92R, and the third joint regions 93L and 93R. Are arranged in a predetermined pattern. Further, the sum of the areas of the plurality of first joint portions 94 is formed to be smaller than the sum of the areas of the second joint portions 95. Furthermore, as shown in FIG. 3A and FIG. 3B, the first joint 94 has a predetermined interval in the longitudinal direction LD (longitudinal direction LD of the disposable diaper 1) that is one or more less than the second joint 95. It is arranged with.
- LD longitudinal direction
- the predetermined interval is, for example, in order to arrange the first joint portions 94 at equal intervals between the adjacent second joint portions 95 in the first joint regions 91L and 91R. This is the interval.
- the first joint portion 94 is disposed at a position overlapping the width direction WD between the adjacent second joint portions 95 (non-joint portions) in the width direction, and is adjacent to the second joint portion in the longitudinal direction. Arranged at intervals longer than 95 intervals.
- the center line CL1 that equally divides the first joint portion 94 into the longitudinal direction LD and the first joint portion 94 adjacent to the longitudinal direction LD in the longitudinal direction. Between the center line CL2 equally divided in the direction LD, the first joint 94 and the second joint 95 can be formed such that the two second joints 95, 95 are arranged.
- each of the disposable diapers 1 is alternately arranged at different pitches, so that the longitudinal direction of the joint portion (the disposable diaper 1 It can improve the durability against the longitudinal direction (LD).
- the total area force of the second junction 95 in the second junction regions 92L and 92R is larger than the total area of the first junction 94 in the first junction regions 91L and 91R.
- the first junction 94 and the second junction 95 are arranged in the second junction 95.
- the junction 95 may be arranged in a one-to-one relationship. Even in this case, the arrangement of the first joint portion 94 and the second joint portion 95 are different from each other, and are arranged substantially in parallel so that the respective positions in the width direction WD of the disposable diaper 1 do not overlap each other.
- the area ratio of the second joint 95 in the second joint regions 92L and 92R is the first joint region. Since it is larger than the area ratio of the 1st junction part 94 in 91L and 91R, the joint strength with respect to peeling (force with respect to the width direction WD of the disposable diaper 1) can be improved.
- a second joint 97 having a larger joint area than the second joint 95 is provided on each of the trunk opening side and the leg opening side in the second joint region. It is done.
- the second joint 97 is joined in a shape as shown in FIG. In this way, by providing the second bonding portion 97 having a larger bonding area than the second bonding portion 95, for example, a force is applied in the direction in which the disposable diaper 1 is peeled off in the overlapping bonding regions 9L and 9R, Even if the first joint 94 is peeled off, the plurality of second joints 97 having a large joint area are provided, so that the first joint 94 is not completely broken.
- the third bonding regions 93L and 93R are arranged at positions facing the first bonding regions 91L and 91R across the second bonding regions 92L and 92R. That is, the third joining regions 93L and 93R are arranged on the side edge side of the disposable diaper 1.
- the third joint portion 96 provided in the third joint regions 93L and 93R can use a joint pattern having the same shape as the first joint portion 94.
- the third bonding portion 96 may use a bonding pattern having a different shape. That is, the third joint portion 96 has a soft feeling and a soft feeling by taking a non-joint area larger than the second joint areas 92L and 92R. In addition, even if the second joint 95 is peeled off, the third joint 96 can prevent the disposable diaper 1 from being broken.
- the third joint portion 96 is a joint portion having the same shape and size as the first joint portion 94, and is formed at every first interval in the third joint regions 93L and 93R.
- the third joint 96 may be disposed at the same position (parallel IJ) as the first joint 94 in the longitudinal direction LD as shown in FIG. 3A, and the longitudinal direction as shown in FIG. 3B.
- the LD should be formed so as to be arranged alternately with the first joint 94.
- each of the first joint portion 94, the second joint portion 95, and the third joint portion 96 has a substantially horizontally long oval shape (rounded rectangle) so as to extend in the width direction WD of the disposable diaper 1. It is formed.
- the first joint 94 has a longitudinal dimension a (length in the width direction WD of the disposable diaper 1) of 1.8 mm and a short dimension b (length in the longitudinal direction LD of the disposable diaper 1) of 1.
- the thing which is Omm can be illustrated.
- the long dimension a of the first joint 94 may be in the range of 0.5 mm to 5.
- Omm and the short dimension b may be in the range of 0.5 mm force and 5. Omm.
- the second joint 95 has a longitudinal dimension c (length in the width direction WD of the disposable diaper 1) of 1.8 mm, and a short dimension d (length in the longitudinal direction LD of the disposable diaper 1).
- Example) is 1) Om m.
- the longitudinal dimension c of the second joint 95 may be in the range of 0.5 mm to 10. Omm, and the short dimension d may be in the range of 0.5 mm force and 5. Omm.
- the third joint 96 has a longitudinal dimension e (length in the width direction WD of the disposable diaper 1) of 1.8 mm, and a short dimension f (length in the longitudinal direction LD of the disposable diaper 1). Examples are those with 1. Omm.
- the longitudinal dimension of the third joint portion 96 may be in the range of 0.5 mm to 10.
- the short dimension f may be in the range of 0.5 mm to 5.
- the third joint 96 can be a joint having the same shape and size as the first joint 94.
- each of the first joint portion 94, the second joint portion 95, and the third joint portion 96 is a force in which a substantially horizontally long elliptical shape is disposed. Not limited to this. For example, as shown in FIG. 4, various shapes such as a polygon, a circle, an ellipse, and a shape with rounded corners of the polygon can be used.
- the first joint 94, the second joint 95, and the third joint 96 are equally spaced at a predetermined distance in each of the longitudinal direction LD and the width direction WD of the disposable diaper 1.
- the distance g (the distance according to the longitudinal direction LD of the disposable diaper 1) as the first interval between the first joint portions 94 is 2.6 mm.
- the distance g between the first joints 94 is in the range of 1.5 mm to 10. Omm, which is longer than the short dimension of the first joints 94! /.
- the distance h (distance in the longitudinal direction LD of the disposable diaper 1) as the second interval between the second joint portions 95 is 0.8 mm.
- the distance h between the second junctions 95 is in the range of 0.8 mm force and 10 Omm, and the total area of the second junctions 95 in the second junction regions 92L and 92R is the first junction region 91L.
- 91R may be arranged so as to be larger than the total area of the first joints 94 in 91R.
- the distance i as the third distance between the third joint portions 96 can be exemplified by the same distance range as the distance g between the first joint portions 94.
- the distance between the first joint 94 and the second joint 95 is 0.55 mm.
- An example of the distance j between the first joint portion 94 and the second joint portion 95 is 1.5 mm that is larger than 0.0 mm.
- An example of the distance k between the second joint portion 95 and the third joint portion 96 is 0.55 mm.
- the distance j between the first joint portion 94 and the second joint portion 95 can be exemplified to be greater than 0.Omm and 1.5 mm or less. That is, the case where the distance between adjacent joints is greater than 0.Omm and not more than 1.5 mm can be exemplified.
- the distance j between the first joint portion 94 and the second joint portion 95 is a direction extending substantially in parallel with the width direction WD of the disposable diaper 1, for example, as shown in FIG.
- the joint 94 is a polygon and the second joint 95 is a polygon such as a parallelogram
- the distance between the vertices of the disposable diaper 1 in the direction parallel to the width direction WD jl,] twenty three , j4 may be in the range described above.
- the force S for adjusting the bonding area and interval of the bonding portion can be adjusted depending on the positions in the bonding regions 9L and 9R.
- the joining area of the second joining part 97 formed on the trunk opening 8 side and the leg openings 7 and 7 side in the joining regions 9L and 9R can be increased. That is, the second joint regions 92L and R are predetermined regions in which the second joint portion 97 larger than the second joint portion 95 is continuously formed by a predetermined distance from each of the trunk opening 8 side and the leg openings 7 and 7 side. Have.
- some of the fibers constituting the chassis 2 are oriented so as to connect the first joining regions 91L and R and the second joining regions 92L and R. Specifically, some of the fibers constituting the chassis 2 are arranged across the first joining regions 91L, R and the second joining regions 92L, R, and as a result, the first joining portions 94 that are adjacent to each other. Connect to second joint 95.
- Such orientation of the fibers is preferable because a so-called longitudinal cut in which the region between the first bonding region and the second bonding region is continuously broken in the longitudinal direction can be suppressed.
- the first joint portion 94 and the second joint portion 95 cooperate to form the joint regions 9L and R.
- This is preferable to counter the force to be peeled off. That is, it is preferable because the bonding strength in the bonding regions 9L and 9R is improved. Specifically, it is preferable because the bonding strength when the fibers are pulled so as to peel off the bonding regions 9L and 9R is larger than when the fibers are oriented in the longitudinal direction LD.
- the chassis 2 in the present embodiment includes stretchable fibers, it is preferable because the bonding strength when the bonding regions 9L and 9R are pulled apart is further increased.
- first joint portions 94 have non-joint portions of a predetermined length (first interval) in the longitudinal direction LD, the first joint portions 94 in the first joint regions 91L, R Even when most of the first joint portion 94 is released, the front waistline region and the back waistline region are not peeled off from each other. If the first joint 94 is shortly formed and the first joint 94 is densely formed! /, Either the front waistline region or the rear waistline region in the process of releasing the joint portion. May break.
- the distance between the first joining region 91L, R and the second joining region 92L, R is greater than Omm, and the fibers are oriented so as to connect the first joining portion 94 and the second joining portion 95. Therefore, so-called vertical cuts are suppressed.
- the distance between the first joining region 91L, R and the second joining region 92L, R is 1.5 mm or less, and the fiber connects the first joining portion 94 and the second joining portion 95. Since they are oriented, the first joint portion 94 and the second joint portion 95 cooperate with each other to counter the force that tries to peel off the joint regions 9L and R, so that the joint strength is improved. That is, even in the state where the joining is released up to the vicinity of the end on the first joining portion 94 side in the second joining portion 95, the fiber at the end on the second joining portion 95 side in the first joining portion 94! As a result, the bonded state is maintained without being broken! /, So that the durability at the joints of each other is combined and a strong bonding strength is exhibited.
- the laminated portion is formed by arranging the side edge of the front waistline region portion and the side edge of the rear waistline region of the chassis 2 so as to face each other in the width direction WD.
- the present invention is not limited to this, and for example, one may be arranged so as to face the outside in the width direction WD, and the other may be arranged so as to face the inside in the width direction WD.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008548339A JP5342879B2 (ja) | 2006-12-08 | 2007-12-06 | 吸収性物品 |
EP07850221.8A EP2092923B1 (en) | 2006-12-08 | 2007-12-06 | Absorptive article |
CN2007800448162A CN101547670B (zh) | 2006-12-08 | 2007-12-06 | 吸收性物品 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006331241 | 2006-12-08 | ||
JP2006-331241 | 2006-12-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008069281A1 true WO2008069281A1 (ja) | 2008-06-12 |
Family
ID=39492159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/073612 WO2008069281A1 (ja) | 2006-12-08 | 2007-12-06 | 吸収性物品 |
Country Status (8)
Country | Link |
---|---|
US (1) | US8986274B2 (ja) |
EP (1) | EP2092923B1 (ja) |
JP (1) | JP5342879B2 (ja) |
KR (1) | KR20090091322A (ja) |
CN (1) | CN101547670B (ja) |
MY (1) | MY158870A (ja) |
TW (1) | TWI478701B (ja) |
WO (1) | WO2008069281A1 (ja) |
Cited By (7)
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JP2012192058A (ja) * | 2011-03-17 | 2012-10-11 | Oji Nepia Co Ltd | 吸収性物品 |
WO2013108808A1 (ja) * | 2012-01-20 | 2013-07-25 | 大王製紙株式会社 | パンツタイプ使い捨ておむつ |
JP2014233624A (ja) * | 2013-10-11 | 2014-12-15 | 王子ホールディングス株式会社 | パンツ型使い捨ておむつ |
JP2015016294A (ja) * | 2013-06-10 | 2015-01-29 | 大王製紙株式会社 | パンツタイプ使い捨ておむつ |
WO2015166671A1 (ja) * | 2014-04-28 | 2015-11-05 | ユニ・チャーム株式会社 | パンツ型の吸収性物品 |
RU175534U1 (ru) * | 2015-12-08 | 2017-12-07 | Као Корпорейшн | Впитывающее изделие без застежек |
WO2020100472A1 (ja) * | 2018-11-15 | 2020-05-22 | 花王株式会社 | パンツ型使い捨ておむつ |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2670783A1 (en) * | 2006-12-07 | 2008-06-12 | Uni-Charm Corporation | Absorbing article |
JP5707108B2 (ja) * | 2010-11-24 | 2015-04-22 | 花王株式会社 | パンツ型着用物品 |
JP5360327B1 (ja) * | 2013-06-03 | 2013-12-04 | 王子ホールディングス株式会社 | パンツ型使い捨ておむつ及びその製造方法 |
JP6402022B2 (ja) * | 2014-12-16 | 2018-10-10 | 花王株式会社 | パンツ型使い捨ておむつの製造装置及び製造方法 |
US10611131B2 (en) * | 2016-04-19 | 2020-04-07 | Aplix | Perforated stretch laminate |
JP6745844B2 (ja) * | 2018-06-29 | 2020-08-26 | ユニ・チャーム株式会社 | 吸収性物品 |
JP6906495B2 (ja) * | 2018-12-25 | 2021-07-21 | ユニ・チャーム株式会社 | パンツ型吸収性物品 |
USD961768S1 (en) * | 2019-06-04 | 2022-08-23 | Rsc Associates, Inc. | Incontinence sensor brief |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012192058A (ja) * | 2011-03-17 | 2012-10-11 | Oji Nepia Co Ltd | 吸収性物品 |
WO2013108808A1 (ja) * | 2012-01-20 | 2013-07-25 | 大王製紙株式会社 | パンツタイプ使い捨ておむつ |
JP2015016294A (ja) * | 2013-06-10 | 2015-01-29 | 大王製紙株式会社 | パンツタイプ使い捨ておむつ |
JP2014233624A (ja) * | 2013-10-11 | 2014-12-15 | 王子ホールディングス株式会社 | パンツ型使い捨ておむつ |
WO2015166671A1 (ja) * | 2014-04-28 | 2015-11-05 | ユニ・チャーム株式会社 | パンツ型の吸収性物品 |
JP2015208534A (ja) * | 2014-04-28 | 2015-11-24 | ユニ・チャーム株式会社 | パンツ型の吸収性物品 |
RU175534U1 (ru) * | 2015-12-08 | 2017-12-07 | Као Корпорейшн | Впитывающее изделие без застежек |
WO2020100472A1 (ja) * | 2018-11-15 | 2020-05-22 | 花王株式会社 | パンツ型使い捨ておむつ |
JP2020080940A (ja) * | 2018-11-15 | 2020-06-04 | 花王株式会社 | パンツ型使い捨ておむつ |
RU2767824C1 (ru) * | 2018-11-15 | 2022-03-22 | Као Корпорейшн | Одноразовый подгузник типа трусов |
Also Published As
Publication number | Publication date |
---|---|
EP2092923B1 (en) | 2013-08-07 |
CN101547670A (zh) | 2009-09-30 |
JPWO2008069281A1 (ja) | 2010-03-25 |
US8986274B2 (en) | 2015-03-24 |
EP2092923A1 (en) | 2009-08-26 |
TW200836705A (en) | 2008-09-16 |
TWI478701B (zh) | 2015-04-01 |
CN101547670B (zh) | 2013-12-25 |
US20080140038A1 (en) | 2008-06-12 |
EP2092923A4 (en) | 2011-11-16 |
KR20090091322A (ko) | 2009-08-27 |
JP5342879B2 (ja) | 2013-11-13 |
MY158870A (en) | 2016-11-30 |
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