WO2006106696A1 - 吸収性物品における弾性部材の取付装置 - Google Patents
吸収性物品における弾性部材の取付装置 Download PDFInfo
- Publication number
- WO2006106696A1 WO2006106696A1 PCT/JP2006/306364 JP2006306364W WO2006106696A1 WO 2006106696 A1 WO2006106696 A1 WO 2006106696A1 JP 2006306364 W JP2006306364 W JP 2006306364W WO 2006106696 A1 WO2006106696 A1 WO 2006106696A1
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- WIPO (PCT)
- Prior art keywords
- elastic member
- guide
- elastic
- sheet
- elastic members
- 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
- A61F13/45—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
-
- 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
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/49019—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being placed longitudinally, transversely or diagonally over the article
-
- 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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15585—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
- A61F13/15593—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers having elastic ribbons fixed thereto; Devices for applying the ribbons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/16—Guides for filamentary materials; Supports therefor formed to maintain a plurality of filaments in spaced relation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H57/00—Guides for filamentary materials; Supports therefor
- B65H57/28—Reciprocating or oscillating guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
- B65H2701/319—Elastic threads
-
- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
-
- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
- Y10T156/1702—For plural parts or plural areas of single part
- Y10T156/1712—Indefinite or running length work
- Y10T156/1734—Means bringing articles into association with web
Definitions
- the present invention relates to the manufacture of absorbent articles such as disposable paper diapers and sanitary napkins.
- the present invention also relates to a facility for guiding and attaching an elastic member such as rubber thread to a predetermined position with respect to a material to be attached such as a sheet.
- an absorbent body that absorbs body fluid is attached to the body, and conventionally, an elastic elastic member is placed at various positions and in various directions with respect to a sheet or the like that holds the absorbent body. To improve the fit to the body.
- a liquid-permeable top sheet 50, a liquid-impervious back sheet 51, and an absorbent body 52 disposed between both the sheets 50 and 51 are provided.
- the waist elastic elastic members 48, 48... Are arranged along the periphery of the opening, and the leg elastic members 53, 53 are substantially continuous along the peripheral edge of both the redder openings.
- a pants-type disposable paper diaper is proposed that has a waist elastic elastic member 49, 49 ... around the waist and is designed to fit the body! reference).
- the first stretchable elastic members 55, 55 are composed of an absorbent main body and an exterior member, and each of which has a plurality of stretchable elastic material forces on the front body and the back body of the exterior member.
- the second elastic elastic members 56, 56..., And these elastic elastic members 55, 5 6 ... each has one side edge force on the front and back bodies and the other side edge through the crotch part, at least a part of which is arranged along the pair of leg openings, and the crotch part
- Patent Document 3 a pants-type use and a disposable diaper have been proposed (see Patent Document 3).
- a main body having a top sheet, a back sheet, and an absorber is provided, and the main body includes an abdominal side portion, a back side portion, and a back side portion.
- a waist opening and a redder opening are formed by joining and fixing the left and right side edges of each of the abdominal part and the back side part.
- a waist elastic member 57 and a redder elastic member 58 that form a substantially continuous gather along the entire circumference of the periphery of the waist are arranged, and a plurality of waist elastic members 57 and Z or back are provided on the waist elastic member.
- a disposable pants-type diaper with a maximum displacement at the center of the ventral side is also proposed. Te Ru (see Patent Document 4).
- FIG. 20 a gathered configuration in which a large number of elastic body strips 60, 60...
- the elastic bodies 60, 60... Of the front body and the back body are arranged substantially evenly in the front and rear in the left and right seal lines, and each elastic body 60, 60.
- a pants-type disposable diaper has also been proposed that bulges toward the section and bulges (see Patent Document 5).
- the elastic member when manufacturing such a pants-type disposable diaper, when attaching an elastic member along the waist or waist direction, for example, the elastic member is continuously applied to a conveyance line for continuously conveying the material to be attached. In general, the elastic member is guided to a mounting position on the material to be mounted via a guide disposed on the conveyance line, and is attached (for example, Patent Document 6, Patent Document). 7).
- the guide in this case is a force that has been conventionally used in the hook-like shape. There is a possibility that the elastic member may come off, or when a plurality of elastic members are attached in parallel at a predetermined interval. In recent years, there is a guide passage with a closed periphery. The equipment which guides an elastic member via was developed and used.
- Patent Document 1 Japanese Patent Laid-Open No. 7-265357
- Patent Document 2 Japanese Patent Laid-Open No. 7-299094
- Patent Document 3 Japanese Patent Laid-Open No. 11-36103
- Patent Document 4 Japanese Patent Laid-Open No. 2001-258931
- Patent Document 5 Japanese Patent Laid-Open No. 2001-204762
- Patent Document 6 Japanese Unexamined Patent Publication No. 4-28363
- Patent Document 7 JP-A-11 332913
- a main object of the present invention is to simplify the operation of passing an elastic member through a guide passage.
- An elastic member mounting device comprising a guide for guiding an elastic member supplied from a supply device to a mounting position on a material to be mounted on a conveyance line,
- the guide has a first part and a second part that is removably attached to the first part, between the first part and the second part and surroundings.
- a closed guide passage is formed, and the elastic member is guided to the mounting position through the guide passage.
- a mounting device for an elastic member in an absorbent article is provided.
- the guide passage is formed between the first part and the second part, and the second part is removable from the first part.
- Such a guide passage is formed by combining a groove formed on a surface of the first portion facing the second portion and a surface of the second portion facing the first portion.
- the form is simple and preferable.
- a plurality of guide passages are provided side by side or that the guide is swung to guide the elastic member in a curved shape. It is preferable to apply the present invention to these cases because the elastic member is easily cumbersome and the elastic member is easily cut in the latter case.
- the elastic member When the elastic member is guided in a curved shape by swinging the guide, it is exposed on the inner surface of the guide passage. If the joint between the first part and the second part is located on both sides in the CD direction on the inner surface of the guide passage, the elastic member may rub against the joint part due to the swinging of the guide and break. Therefore, it is preferable to adopt a configuration in which the seam is not located on either side of the CD direction.
- FIG. 1 is an external view of a product state of a pants-type disposable paper diaper 1 according to an embodiment
- FIG. 2 is an assembled view in an unfolded state.
- This pants-type disposable paper diaper 1 (hereinafter also simply referred to as “paper diaper”) has an absorbent material such as cotton-like pulp between a liquid-permeable surface sheet 11 having strength such as a nonwoven fabric and a leak-proof sheet 12 made of polyethylene or the like.
- 13 is composed of an absorbent main body 10 interposing 13 and an exterior sheet 20 integrally provided on the outer surface side of the absorbent main body 10.
- the absorbent main body 10 and the outer sheet 20 are folded in the front-rear direction after the absorbent main body 10 is bonded and integrated on the upper surface side of the outer sheet 20 with an adhesive such as hot melt. Since both sides are joined to each other by heat welding or hot melt adhesive, a pants-type paper diaper having a waist opening and a pair of left and right redder openings is formed.
- the absorbent main body 10 includes an absorbent body 13 such as cotton-like pulp between a liquid-permeable surface sheet 11 made of non-woven fabric or the like and a leak-proof sheet 12 having polyethylene isotropic force. In this structure, body fluid is absorbed and held.
- an absorbent body 13 such as cotton-like pulp between a liquid-permeable surface sheet 11 made of non-woven fabric or the like and a leak-proof sheet 12 having polyethylene isotropic force. In this structure, body fluid is absorbed and held.
- a porous or non-porous nonwoven fabric or a porous plastic sheet is preferably used as the liquid-permeable surface sheet 11 covering the surface side (skin contact surface side) of the absorbent body 13.
- the material fibers that make up the nonwoven fabric include synthetic fibers such as polyethylene or polypropylene, synthetic fibers such as polyester and polyamide, recycled fibers such as rayon cubra, and natural fibers such as cotton.
- a non-woven fabric obtained by an appropriate processing method such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, or a needle punch method can be used. Of these processing methods, the spunlace method is superior in terms of flexibility and drapeability, and the thermal bond method is superior in terms of being bulky and soft.
- liquid-permeable surface sheet 11 When a large number of through-holes are formed in the liquid-permeable surface sheet 11, urine and the like are quickly absorbed, and the dry touch properties are excellent.
- the liquid-permeable surface sheet 11 is wound around the side edge of the absorbent body 13 and extends to the back surface side of the absorbent body 13.
- the leak-proof sheet 12 that covers the back side (non-skin contact surface side) of the absorbent body 13 is a force that uses a liquid-impervious plastic sheet such as polyethylene or polypropylene. Those having wettability are preferably used.
- This impermeable sheet is a microporous material obtained by, for example, melt-kneading an inorganic filler in polyolefin resin such as polyethylene or polypropylene to form a sheet, and then stretching it in a uniaxial or biaxial direction. If the sheet thickness is the same, the rigidity is lower than that of the non-porous sheet, and this is superior in terms of flexibility.
- the absorber 13 is preferably formed by molding a fluffy pulp and a water-absorbing polymer.
- the water-absorbing polymer can be mixed, for example, as a granular powder in the pulp constituting the absorber.
- Pulp includes cellulose fibers such as chemical pulp and dissolving pulp obtained from wood, and artificial cellulose fibers such as rayon and acetate. Fiber length is longer than hardwood pulp, and conifer pulp functions more. And it can be used conveniently in terms of price. Of course, other known absorbers can also be used.
- the absorbent body 13 can be wrapped with a liquid-permeable sheet 14 such as crepe paper as necessary, for the purpose of maintaining the shape and improving the diffusibility of the body fluid that has passed through the liquid-permeable surface sheet 11.
- the shape of the absorber 13 can be a shape in which the width of the crotch portion is narrower than the back side and the abdomen side as shown in the drawing, or a rectangular shape.
- a solid gather BS that fits around the legs is formed on both sides of the absorbent main body 10.
- This three-dimensional gathered BS is formed by the gathered nonwoven fabric 15.
- a non-woven fabric made into a double sheet by folding is preferably used and is wound by the liquid-permeable surface sheet 11.
- Absorber 13 side edge Further, the upper part of the part is also rolled up to the back side of the absorber 13 and bonded.
- the gathered nonwoven fabric 15 has a three-dimensional gather BS forming portion left in the middle portion in the longitudinal direction of the paper diaper, and the range from the middle portion in the width direction to the back side of the absorbent body 13 is bonded by a hot melt adhesive or the like.
- the section from the intermediate portion in the width direction to the one side end edge is bonded in the range extending to the back surface side of the absorber 13, and the portion forming the three-dimensional gather BS is While being folded at the upper surface, it is bonded with hot melt adhesive.
- the thread-like elastic elastic members 16, 16 Inside the gathered nonwoven fabric 15 formed of a double sheet nonwoven fabric, a plurality of thread-like elastic elastic members 16, 16,... As shown in FIG. 6 (B), the thread-like elastic elastic members 16, 16 ... form a three-dimensional gather BS by raising the nonwoven fabric portion protruding from the absorber side edge by the elastic elastic force. It is for.
- the leak-proof sheet 12 enters the inside of the double sheet-like gathered nonwoven fabric 15 and forms a leak-proof wall on the lower end side of the three-dimensional gather BS as shown in FIG. Talk! It is desirable to use an opaque sheet as the strong leak-proof sheet 12 so as not to cause browning such as defecation and urine.
- a plastic film and a pigment or filler such as calcium carbonate, titanium oxide, zinc oxide, white carbon, clay, talc, and barium sulfate are preferably used.
- the thread-like elastic elastic member 16 a material such as a commonly used styrene rubber, olefin rubber, urethane rubber, esterol rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon, polyester or the like may be used. It can. In order to make it difficult to see from the outside, the thickness should be 925 dtex or less, the tension 150 to 350%, and the interval 7.70 mm or less. Instead of the thread-like elastic elastic member, a tape-like elastic elastic member having a certain width may be used.
- the material fibers constituting the gathered nonwoven fabric 15 are not only synthetic fibers such as polyethylene or polypropylene but also synthetic fibers such as polyester and amide, as well as rayon and cuvula. Natural fibers such as recycled fibers and cotton can be used, and appropriate additions such as the span bond method, thermal bond method, melt blown method, and needle punch method can be used. Force that can use the nonwoven fabric obtained by the method In particular, in order to prevent stuffiness, it is preferable to use a nonwoven fabric excellent in air permeability by suppressing the basis weight.
- silicone-based, paraffin-metal-based, alkyl-kumick-croid-based water repellent It is desirable to use a water-repellent non-woven fabric coated with an agent.
- the exterior sheet 20 is a two-layer nonwoven fabric sheet that also has an upper layer nonwoven fabric 20A and a lower layer nonwoven fabric 20B, and various elastic members are arranged between the upper layer nonwoven fabric 20A and the lower layer nonwoven fabric 20B. It is provided and has elasticity.
- the planar shape forms a pseudo hourglass shape as a whole by the concave leg circumference cut lines 29 formed to form the leg openings on both sides of the middle!
- the waist elastic members 24, 24,. F and the back body B have a plurality of waist elastic members 25, 25, which are arranged in the horizontal direction at intervals in the vertical direction, and the front body F and the back body B.
- the front body F and the back body B are joined to the crotch side from the joint edge that joins the front body F and the back body B, bypassing the crotch side and the front body
- a plurality of curved elastic member groups 26..., 28... That reach the other side joining edge with the rear body and are spaced apart from each other are provided.
- the exterior sheet 20 is not provided with a so-called leg-hole elastic member that is substantially continuous along the leg-cut line 29.
- the waist elastic members 24, 24 are arranged in the vertical direction in the vicinity of the waist opening edge within the range of the side joint edges 21 and 22 where the front body F and the back body B are joined. It is a set of multiple elastic rubber-like members that are used to attach a disposable diaper to the body by applying a stretching force to tighten around the waist of the body.
- the waist elastic member 24 thread rubber is used in the illustrated example. However, for example, a tape-like elastic member may be used.
- the waist elastic members 25, 25... are generally from the upper part to the lower part of the side joint edges 21, 22. This elastic rubber-like elastic member is arranged along the horizontal direction with an interval in the vertical direction over the area of the body, and stretches horizontally in the waist area of the front body F and back body B, respectively. It is for giving power and sticking the disposable diaper to the body. It should be noted that the boundary between the waist elastic members 24, 24... And the waist elastic members 25, 25. For example, even if the number of elastic members arranged horizontally in the vertical direction between the front body F and the back body B is not specified, several on the upper side function as waist elastic members. The remaining elastic member should function as a waist elastic member.
- the dorsal curved elastic member groups 26, 26, which are disposed separately from the waist elastic member groups 25, 25, are substantially from the side joint edge 22 on one side. It extends to the crotch part along the leg circumference cut line 29, and is arranged so as to bypass the crotch part and reach the other side side joint edge 22 almost along the leg leg cut line 29 on the opposite side.
- a plurality, nine rubber elastic members in the illustrated example, and these back-side curved elastic member groups 26, 26,... Are arranged at intervals that do not cross each other.
- the back-side curved elastic member groups 26, 26,... are different in arrangement from the conventional leg-hole elastic members. In other words, it is not necessary to arrange about two or three elastic expansion / contraction members at a close interval, but to form a predetermined expansion / contraction zone that does not have to be arranged substantially in a bundle. Or more, preferably 7 or more
- the start and end of the dorsal curved elastic member groups 26, 26,... are connected at a predetermined interval from the upper part to the lower part of the joining edge of the front body F and the rear body B, and absorbable.
- the acute side crossing angle ⁇ between the dorsal curved elastic member group 26, 26, ′ and the side edge of the absorbent main body 10 is 35 ° or more, preferably 40 It is arranged with an arrangement pattern of more than 45 °, more preferably more than 45 °.
- the crossing angle ⁇ is arranged to be around 47 °.
- the crossing angle ex is preferably 60 ° or less at the maximum, considering the balance between the horizontal component and the vertical component.
- the elastic member 26i located closest to the waist opening is a waist portion.
- the elastic members 2, 24... are arranged such that the distance SB from the lowermost elastic member 240 is within 20 mm. When wearing, the wearer grips the side of the waist and pulls it upwards. The back of the disposable diaper B is easily pulled upward by the elastic force of the materials 26, 26, etc., and the ease of wearing is improved.
- the dorsal curved elastic member groups 26, 26,... Be changed in an arcuate curve at the detour portion of the crotch part.
- the elastic member exerts a stretching force in the tangential direction.
- the force acting in the width direction of the absorber 13 can be minimized by reversing the curved shape in the crotch part, and the absorber 13 contracts in the crotch part. Can be prevented.
- the elastic member groups 26, 26,... are arranged with a relatively gentle inclination angle.
- the elastic members 26, 26,. 73% of the force can be applied as a horizontal component force, and the exterior sheet 20 can be brought into close contact with the body so as to wrap the buttocks.
- the absorbent main body 10 is not contracted to the center side, and the leak prevention effect is enhanced by ensuring that the absorbent body 10 is in close contact with the body.
- the arrangement interval in the arrangement section BL is substantially the same as the arrangement interval of the dorsal curved elastic member groups 26, 2 6...
- the elastic member 260 located on the most inseam side is arranged so as to draw a curved shape in which the distance BH from the crotch lower part folding line CL is within 50 mm, preferably within 35 mm.
- the outer sheet 20 as a whole is balanced evenly without elastic force being concentrated. Is placed in close contact with the body, and the line drawn by the dorsal curved elastic member group 26, 26 ... It comes to be able to hold tightly tightly.
- the back body elastic members 26, 26 ⁇ arranged on the B-side of the back body are biased to the F-side of the front body with respect to the crotch folding line CL of the diaper at the crotch part. Is desirable.
- the dorsal curved elastic members 26, 26 ⁇ ⁇ ⁇ the crotch folding line of the diaper By displacing the front body to the F side based on CL, it is possible to eliminate the diaper slippage that occurs on the buttock side and to eliminate the slack of the exterior sheet 20 and to fit the body.
- the abdomen curved elastic member groups 28, 28, which are arranged separately from the waist elastic member groups 25, 25, ...
- These ventral-side curved elastic member groups 28, 28... Are arranged at intervals that do not cross each other.
- the ventral curved elastic member groups 28, 28... are also different in arrangement from the conventional leg-hole elastic members. That is, not less than two or three elastic elastic members are arranged at a close interval, and are not substantially arranged as a bundle. Five or more elastic members are provided at predetermined intervals so as to form a predetermined elastic zone. Preferably seven or more are arranged.
- the start and end of the ventral elastic member group 28, 28 ... are also at a predetermined interval from the upper part to the lower part of the side joint edges 21 and 21 of the front body F and the rear body B.
- the acute angle side crossing angle between the ventral curved elastic member group 28, 28 ... and the side edge of the absorbent main body 10 is 0 force ⁇ 0 ° or less, preferably Arranged in an arrangement pattern of 28 ° or less.
- the crossing angle ⁇ force is arranged around 26 °.
- the crossing angle ⁇ is preferably at least 20 °, considering the balance between the horizontal and vertical component forces.
- ventral curved elastic member groups 28, 28 In order to minimize the force acting in the width direction of the absorbent body 13 and to prevent the absorbent body 13 from contracting in the crotch part, the ventral curved elastic member groups 28, 28. In the detour, it is desirable that the direction be changed to an arcuate curve.
- the sliding of the disposable diaper is mainly the front body side F
- the ventral curved elastic member groups 28, 2 8 ..., the elastic member 28i located closest to the waist opening is arranged such that the distance SF from the lowermost elastic member 240 of the waist elastic member is within 20 mm.
- the arrangement interval of the ventral curved elastic member groups 28, 28 at the side joint edges 21, 22 of the front body F and the back body B that is, the elastic member arrangement of the side part edges 21, 22
- the arrangement interval in the section FL is substantially the same as the arrangement interval of the ventral curved elastic member groups 28, 28,...
- the elastic member 280 located on the most inseam side is arranged so as to draw a curved shape in which the distance FH from the crotch lower part folding line CL is within 50 mm, preferably within 35 mm.
- the outer sheet 20 can be evenly balanced without elastic force being concentrated.
- the line drawn by the ventral curved elastic member group 28, 28 ... in a curved shape of a large wave that bypasses the area near the crotch the exterior sheet 20 is attached to the body. It comes to be able to hold tightly tightly.
- ventral curved elastic member group 28, 28 ... and a part of the dorsal curved elastic member group 26, 26 ... can be crossed at the crotch, but the ventral side
- the most crotch elastic member 280 in the curved elastic member group 28, 28... And the most crotch elastic member 260 in the dorsal curved elastic member group 26, 26. are preferably close to each other at the lower crotch without crossing each other.
- the proximity width (FH—BH) is preferably 10-20 mm. In the latter case, in the crotch part, the absorbent main body 10 is pressed and adhered to the body side with equal pressure by the curved elastic member groups 28... 26. It comes to be demonstrated.
- the waist elastic members 25, 25 ... and the curved elastic members 26, 28, ... 28 arranged on the front body F and the back body B are formed on the absorbent main body 10.
- the elastic member crossing the absorbent main body 10 may be cut and discontinuous as shown in FIG. Absorb by making the elastic member discontinuous on the absorbent body The collapse of the body 13 can be further prevented.
- the waist elastic member group 25, 25 ⁇ and the curved elastic member 26 ⁇ , 28 ⁇ As long as the above arrangement is adopted in this state, the above-described effects can be obtained.
- the above-described exterior sheet 20 can be manufactured, for example, as follows. That is, as shown in FIG. 7, the upper layer nonwoven fabric 20A is supplied to the upper side of the top roller section 30, and the lower layer nonwoven fabric 20B is supplied to the lower side, and these upper layer nonwoven fabric 20A and lower layer nonwoven fabric 20B In the meantime, various elastic members (waist elastic member 24, waist elastic member 25, dorsal curved elastic member 26, ventral elastic member 28) are supplied, and the exterior sheet 20 is continuously assembled.
- the waist elastic members 24, 24... And the waist elastic members 25, 25... are linearly introduced along the line direction, whereas the curved elastic members 26. ⁇ Is introduced into the top roller section 30 while being meandered in a curved shape by the guide 32.
- the present invention is applied to this guide 32. That is, as shown in FIGS. 8 to 12, the guide 32 has guide passages 32X, 32X, etc. of elastic elastic members 26, 28,... By elastically swinging (reciprocating) at a predetermined speed in the CD direction (direction perpendicular to the line flow direction, in this case, the width direction of the continuous web (sheets 20A, 20B)) by the device, the elastic elastic member 26. .. 28 are guided to a predetermined curved shape.
- a plurality of guide passages 32X, 32X,... are arranged in parallel along the CD direction at a predetermined interval.
- the distal end portion of the guide 32 includes an upper portion 32A attached to a driving device such as a cylinder (not shown), and a lower portion 32B removably attached to the upper portion 32A. It consists of and. As shown in FIGS. 9 and 10, support portions 32S and 32S projecting to the lower portion 32B side are respectively provided at both ends in the CD direction of the upper portion 32A, and one end of the lower portion 32B is provided. The part is rotatably connected to one support part 32S via a link shaft 32L, and the other end part of the lower part 32B is connected to the other support part 32S. It is detachably fixed to. As shown in FIG.
- this fixing means penetrates at least from the other support portion 32S into the other end portion of the lower portion 32B in a state where the guide passage 32X is formed by the lower portion 32B and the upper portion 32A.
- a force can also be configured with the pin through-hole 32h formed in this, and the fixed pin 32p that is removably inserted into the pin through-hole 32h.
- grooves 32d, 32d,... Penetrating from one side to the other side along the MD are formed on the opposing surfaces of the upper portion 32A and the lower portion 32B.
- the grooves 32d, 32d ... of the upper part 32A and the grooves 32d, 32d ... of the lower J-distribution 32B are provided at the corresponding positions in the CD direction, as shown in FIG.
- the grooves 32d, 32d, etc. of both are combined to form a single closed guide passage 32X, 32X,.
- a groove is provided only on one side of the upper part 32A and the lower part 32B, for example, only on the upper part 32A, and the other side can be configured to function as a simple lid.
- the guide passage 32X can be formed to have a smooth curved surface shape 32C in which the intermediate portion bulges from the edge of the inlet to the edge of the outlet.
- the inner surface of the guide passage 32X may be subjected to a surface treatment for reducing friction such as a fluorine treatment or a force nack treatment.
- the seam 32J is It is preferable to configure it so that it is not located on both sides. Force that can be determined appropriately on both sides in the CD direction in the guide passage 32X As shown in Fig. 15, when the guide passage 32X is a circular hole extending along the MD direction, the angular range around the center of the passage is in the CD direction. For example, it can be in the range of 45 degrees. In the example shown in FIGS. 13 to 15, the groove of the lower portion 32B is deepened and the groove of the upper portion 32A is shallow so that the joint 32J is not located within this range.
- the lower portion 32B is removed as shown in Fig. 12 when the elastic members 26, 28 are newly passed through the guide 32 by cutting the elastic members 26, 28, etc.
- the elastic members 26 and 28 can be inserted laterally from this open portion with a part of the peripheral surface of the guide passage 32X opened over the entire length of the passage.
- the guide 32 that can be divided on the surface along the longitudinal direction of the passage is not limited to the curved elastic member 26, 28, but to the elastic member 24, 25, which is linearly introduced. In other words, the present invention can be applied to a configuration in which the guide 32 is fixedly arranged without swinging.
- the waist elastic member 24 and the waist elastic member 25 are fixed to the sheet by hot melt on the peripheral surfaces of the elastic members 24... 25. This is achieved by applying an adhesive and supplying it to the -roller section 30.
- the middle zone M between the waist elastic elastic members 25, 25 ... in the front body and the waist elastic elastic members 25, 25 ... in the rear body is the upper layer nonwoven fabric 20A and the lower layer nonwoven fabric 20B.
- the hot melt adhesive is bead-coated by the coater 33 so as to form a plurality of rows along the horizontal direction at intervals in the vertical direction on the lower layer side nonwoven fabric 20B.
- the curved elastic elastic members 26,..., 28... Are fixed in the intermediate zone M by a hot melt adhesive applied to the lower layer nonwoven fabric 20B.
- Japanese Patent Laid-Open Nos. 2000-35029 and 2002-178428 and The cutting method described in Japanese Unexamined Patent Publication No. 2002-273808 is preferably employed.
- the elastic stretchable member cutting method described in the publication basically includes a plurality of convex portions arranged on the surface after manufacturing a laminated sheet 20 ′ to be an exterior sheet 20, as shown in FIG.
- the laminated sheet 20 ′ is passed between the embossed heat roll 34 and the embossed heat roll 34 facing the opposite roll 35.
- the curved elastic members 26,..., 28 of the laminated sheet 20 ′ are cut by at least one of pressurization and heating between the convex portions of the embossed heat roll 34 and the opposing roll 35. Note that the X region in FIG. 7B indicates the cutting range.
- FIG. 1 is an external view of a product state of a pants-type disposable paper diaper 1.
- FIG. 2 A drawing of the thread in the unfolded state.
- FIG. 3 is a development view of the exterior sheet 20.
- FIG. 4 is a development view showing a modified example of the exterior sheet 20.
- FIG. 5 is a plan view of the absorbent main body 10.
- FIG. 6 (A) is a half cross-sectional view of the absorbent main body 10 in the unfolded state, and (B) is a diagram showing its product state.
- FIG. 7 An assembly procedure of the exterior sheet 20 is shown, (A) is a schematic view, and (B) is a plan view of the main part.
- FIG. 8 is a front view of the guide.
- FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG.
- FIG. 10 is a sectional view taken along line XX in FIG.
- FIG. 11 is a sectional view taken along line XI-XI in FIG.
- FIG. 12 is a front view of the guide.
- FIG. 13 is a front view of another guide.
- FIG. 14 is a sectional view taken along line XIV-XIV in FIG.
- FIG. 15 is an enlarged front view of the main part of the guide.
- FIG. 16 shows a conventional pants-type disposable paper diaper (part 1), (A) is a development view, and (B) is a product state diagram.
- FIG. 17 is a front view showing a conventional pants-type disposable paper diaper (part 2).
- FIG. 18 is a development view showing a conventional pants-type disposable paper diaper (Part 3).
- FIG. 19 is a development view showing a conventional pants-type disposable paper diaper (Part 4).
- FIG. 20 A conventional pants-type disposable paper diaper (Part 5) is shown, (A) is a front view, and (B) is an unfolded view.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020077023583A KR101253125B1 (ko) | 2005-03-31 | 2006-03-28 | 흡수성 물품에 있어서의 탄성부재의 부착장치 |
US11/887,300 US8261802B2 (en) | 2005-03-31 | 2006-03-28 | Device for mounting elastic member in absorptive article |
CN2006800109402A CN101155565B (zh) | 2005-03-31 | 2006-03-28 | 吸收性物品中的弹性部件的安装装置 |
EP06730312A EP1867311B1 (en) | 2005-03-31 | 2006-03-28 | Device for attaching an elastic member to an absorptive article |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-103884 | 2005-03-31 | ||
JP2005103884A JP4397847B2 (ja) | 2005-03-31 | 2005-03-31 | 吸収性物品における弾性部材の取付装置 |
Publications (1)
Publication Number | Publication Date |
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WO2006106696A1 true WO2006106696A1 (ja) | 2006-10-12 |
Family
ID=37073261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/306364 WO2006106696A1 (ja) | 2005-03-31 | 2006-03-28 | 吸収性物品における弾性部材の取付装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8261802B2 (ja) |
EP (1) | EP1867311B1 (ja) |
JP (1) | JP4397847B2 (ja) |
KR (1) | KR101253125B1 (ja) |
CN (1) | CN101155565B (ja) |
WO (1) | WO2006106696A1 (ja) |
Cited By (1)
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JP2015536734A (ja) * | 2012-11-27 | 2015-12-24 | ザ プロクター アンド ギャンブルカンパニー | 弾性材を移動する基材へと、曲線状経路で適用する方法及び装置 |
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JP4350791B2 (ja) * | 2006-03-31 | 2009-10-21 | 大王製紙株式会社 | パンツ型使い捨ておむつカバー |
KR101454048B1 (ko) | 2007-02-28 | 2014-10-27 | 다이오 페이퍼 코퍼레이션 | 종이기저귀 |
DE102007063209A1 (de) | 2007-12-20 | 2009-06-25 | Paul Hartmann Aktiengesellschaft | Verfahren zum Herstellen von Inkontinenzartikeln in Höschenform |
AU2011302649A1 (en) * | 2010-09-16 | 2013-05-02 | Dsg Technology Holdings Ltd | Article with elastic distribution and system and method for making same |
US9566193B2 (en) * | 2011-02-25 | 2017-02-14 | Curt G. Joa, Inc. | Methods and apparatus for forming disposable products at high speeds with small machine footprint |
JP5946121B2 (ja) * | 2011-12-27 | 2016-07-05 | 大王製紙株式会社 | パンツタイプ使い捨ておむつ |
DE102012208394A1 (de) | 2012-05-18 | 2013-11-21 | Paul Hartmann Ag | Inkontinenzartikel in Höschenform |
US9248054B2 (en) | 2012-11-27 | 2016-02-02 | The Procter & Gamble Company | Methods and apparatus for making elastic laminates |
US9265672B2 (en) | 2012-11-27 | 2016-02-23 | The Procter & Gamble Company | Methods and apparatus for applying adhesives in patterns to an advancing substrate |
CN104814832B (zh) * | 2015-04-20 | 2017-10-31 | 福建溢泰科技有限公司 | S型橡筋摆机构 |
CA3000031C (en) | 2015-10-13 | 2023-09-19 | Curt G. Joa, Inc. | Disposable product assembly systems and methods |
FI127034B (fi) * | 2015-11-13 | 2017-10-13 | Akaan Työvälinepalvelu Oy | Menetelmä työkalun tai vastaavan esineen valmistamiseksi |
AU2018269186A1 (en) | 2017-05-17 | 2019-11-28 | Berry Global, Inc. | Elastic non-woven lamination method and apparatus |
US11684522B2 (en) | 2017-10-31 | 2023-06-27 | Kimberly-Clark Worldwide, Inc. | Elastic laminates with curved elastics and methods for manufacturing |
AU2018360593B2 (en) | 2017-10-31 | 2024-03-14 | Kimberly-Clark Worldwide, Inc. | Elastic laminates with curved elastics and methods for manufacturing |
CN108083019A (zh) * | 2017-11-30 | 2018-05-29 | 四川泛华航空仪表电器有限公司 | 一种民用飞机燃油测量线束扭绞工装 |
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- 2006-03-28 US US11/887,300 patent/US8261802B2/en not_active Expired - Fee Related
- 2006-03-28 WO PCT/JP2006/306364 patent/WO2006106696A1/ja active Application Filing
- 2006-03-28 CN CN2006800109402A patent/CN101155565B/zh active Active
- 2006-03-28 EP EP06730312A patent/EP1867311B1/en active Active
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Also Published As
Publication number | Publication date |
---|---|
KR101253125B1 (ko) | 2013-04-10 |
JP2006280581A (ja) | 2006-10-19 |
EP1867311A1 (en) | 2007-12-19 |
KR20070118261A (ko) | 2007-12-14 |
EP1867311A4 (en) | 2010-05-26 |
EP1867311B1 (en) | 2012-08-22 |
US20100230056A1 (en) | 2010-09-16 |
JP4397847B2 (ja) | 2010-01-13 |
US8261802B2 (en) | 2012-09-11 |
CN101155565B (zh) | 2011-05-04 |
CN101155565A (zh) | 2008-04-02 |
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