WO2014073637A1 - 使い捨ておむつ - Google Patents

使い捨ておむつ Download PDF

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Publication number
WO2014073637A1
WO2014073637A1 PCT/JP2013/080239 JP2013080239W WO2014073637A1 WO 2014073637 A1 WO2014073637 A1 WO 2014073637A1 JP 2013080239 W JP2013080239 W JP 2013080239W WO 2014073637 A1 WO2014073637 A1 WO 2014073637A1
Authority
WO
WIPO (PCT)
Prior art keywords
region
pair
target
disposable diaper
sheet
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2013/080239
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
山中　康弘
坂口　智
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unicharm Corp
Original Assignee
Unicharm Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unicharm Corp filed Critical Unicharm Corp
Priority to SG11201503545XA priority Critical patent/SG11201503545XA/en
Priority to CN201380058457.1A priority patent/CN104768511B/zh
Priority to IN4292DEN2015 priority patent/IN2015DN04292A/en
Priority to KR1020157013390A priority patent/KR101778870B1/ko
Priority to AU2013342428A priority patent/AU2013342428B2/en
Priority to BR112015009992A priority patent/BR112015009992A2/pt
Publication of WO2014073637A1 publication Critical patent/WO2014073637A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A61F13/56—Supporting or fastening means
    • A61F13/5622—Supporting or fastening means specially adapted for diapers or the like
    • A61F13/5633—Supporting or fastening means specially adapted for diapers or the like open type diaper

Definitions

  • the present invention relates to a disposable diaper.
  • a disposable diaper provided with a fastening tape is known (for example, see Patent Document 1).
  • a target portion to which a fastening tape is fastened is provided in the front waist area of the disposable diaper of Patent Document 1.
  • the fastening tape is separately disposed at a position on the left side of the wearer and a position on the right side of the wearer.
  • the wearer fastens the fastening tape according to the target portion when the disposable diaper is put on the wearer, and fixes the fastening tape with the position of the target portion as a guide.
  • a disposable diaper can be mounted
  • the disposable diaper described above has the following problems.
  • the above-mentioned disposable diaper has a small target area compared to a target part continuous in the width direction because the left target part and the right target part are separated from each other. Since the area of the target portion, which serves as an indication of the position at which the fastening tape is stopped, is small, the wearer may have a sense of anxiety that it is difficult to stop the fastening tape on the target portion and it is difficult to wear the fastening tape. Moreover, since the area of the position which stops a fastening tape is small, the anxiety that it is difficult to adjust according to a wearer's body may arise.
  • the center in the width direction of the continuous target part corresponding to the space between the left target part and the right target part is often not used by general body wearers, and the fastening tape is substantially fixed. It is an area that is not done.
  • the target portion is provided in such a region where the fastening tape is not substantially fixed, waste of materials occurs.
  • this invention is made
  • a disposable diaper according to the present disclosure (disposable diaper 10) has a front waistline region, a back waistline region, and a crotch region positioned between the front waistline region and the back waistline region, and from the front waistline region
  • An absorber having a product longitudinal direction toward the rear waistline and a product width direction orthogonal to the product longitudinal direction, straddling the crotch region and extending to at least one of the front waistline region and the rear waistline region
  • a pair of fastening tapes extending from the rear waistline region to both outer sides in the product width direction, a pair of target portions to which the fastening tape is fastened, and the pair of target portions are fixed, and the fastening tape is stopped.
  • FIG. 1 is a developed plan view of a disposable diaper according to the present embodiment.
  • FIG. 2 is a cross-sectional view of the disposable diaper along the line F1-F1 shown in FIG.
  • FIG. 3 is a cross-sectional view of the disposable diaper along the line F2-F2 shown in FIG.
  • FIG. 4 is a developed rear view of the disposable diaper shown in FIG. 1.
  • FIG. 1 is a developed plan view of a disposable diaper 10 according to this embodiment.
  • FIG. 2 is a cross-sectional view of the disposable diaper along the line F1-F1 shown in FIG.
  • FIG. 3 is a cross-sectional view of the disposable diaper along the line F2-F2 shown in FIG.
  • FIG. 4 is a developed rear view of the disposable diaper shown in FIG. 1. 1 and 4 show a state in which the elastic members 81 of the leg stretchable part 75 and the leg side gathers 80 are stretched until the top sheet 50, the side flap 70, and the like constituting the disposable diaper are not formed.
  • FIG. 1 and 4 show a state in which the elastic members 81 of the leg stretchable part 75 and the leg side gathers 80 are stretched until the top sheet 50, the side flap 70, and the like constituting the disposable diaper are not formed.
  • FIG. 1 and 4 show a state in which the elastic members 81 of the leg stretchable part 75 and the leg side gathers 80 are stretched until the top sheet 50, the side flap 70, and the
  • the disposable diaper 10 has a front waistline region 20, a crotch region 25, and a back waistline region 30.
  • the front waistline region 20 is a portion in contact with the wearer's front waistline portion (abdomen portion).
  • the rear waistline region 30 is a portion in contact with the rear waistline portion (back portion) of the wearer.
  • the crotch region 25 is located between the front waistline region 20 and the back waistline region 30.
  • the disposable diaper 10 is formed with a pair of leg openings 35.
  • the leg opening 35 is provided at a side end portion in the product width direction of the disposable diaper, and is a portion that is disposed around the leg of the wearer while the disposable diaper is worn by the wearer.
  • the direction from the front waistline region 20 to the rear waistline region 30 is referred to as a product longitudinal direction L
  • a direction orthogonal to the product longitudinal direction L is referred to as a product width direction W.
  • the disposable diaper 10 includes an absorbent body 40 that straddles the crotch region 25 and extends from the crotch region 25 toward at least one of the front waistline region 20 and the rear waistline region 30.
  • the absorber 40 includes an absorbent core 40a and a core wrap 40b.
  • the absorbent core 40a is the same as a conventional disposable diaper, and can be appropriately configured using a known member or material such as pulverized pulp or a superabsorbent polymer.
  • the absorbent core 40a is wrapped with a sheet-like core wrap 40b.
  • the core wrap 40b is a sheet that covers the absorbent core 40a. At least a part on the skin surface side of the core wrap 40b is constituted by various fiber nonwoven fabrics or tissue sheets having liquid permeability. For example, air-through nonwoven fabric of weight approximately 10 ⁇ 30g / m 2, spun bond nonwoven fabric, SMS can be used (spunbond - spunbond - meltblown) nonwoven or tissue sheet of the mass about 10 ⁇ 30g / m 2,.
  • a liquid-permeable top sheet 50 is provided on the surface side (skin contact surface side) of the absorber 40.
  • a liquid-impermeable back sheet 60a is provided on the back side (non-skin contact surface side) of the absorber 40.
  • Side flaps 70 are respectively provided on side edges of the absorbent body 40 in the product width direction W.
  • the side flap 70 straddles the front waistline region 20, the crotch region 25, and the rear waistline region 30, and is disposed outside the absorbent body 40 in the product width direction.
  • the side flap 70 is comprised by the nonwoven fabric which piled up the 1 sheet or 2 or more sheets.
  • the pair of side flaps 70 are each provided with a fastening tape 90.
  • the fastening tape 90 is a pair, and extends in the product width direction W in the rear waistline region 30 and is fastened to the non-skin contact surface of the front waistline region 20 so that the disposable diaper 10 is attached to the wearer. Hold on the body.
  • the target portion 95 is a pair and is disposed on the non-skin contact surface in the front waistline region, and is configured such that the pair of fastening tapes 90 are fixed to each other.
  • the configuration of the target unit 95 will be described in detail later.
  • the front waistline region 20, the rear waistline region 30, and the fastening tape 90 constitute a waistline holding portion.
  • the waistline holding portion of the rear waistline region 30 is a range extending in the width direction from the region where the engaging member of the fastening tape 90 is provided.
  • the waistline holding portion of the front waistline region 20 is a range extending in the width direction from the region where the target portion 95 is provided.
  • the disposable diaper 10 includes a crotch expansion / contraction part 200 disposed in a region overlapping the absorber in the crotch region 25.
  • the configuration of the crotch expansion / contraction unit 200 will be described in detail later.
  • the side flap 70 is provided with a pair of leg stretchable parts 75 that are arranged on the inner side in the product width direction than the leg opening 35 and can be stretched in the product longitudinal direction L.
  • the leg stretchable part 75 is longer than the crotch stretchable part 200 in the product longitudinal direction L and is provided outside the crotch stretchable part 200 in the product width direction W.
  • the leg expansion / contraction part 75 should just be comprised so that the leg opening part 35 can be expanded-contracted in a product longitudinal direction, may be arrange
  • leg stretchable part 75 is composed of a stretchable sheet, thread rubber, or the like.
  • the leg stretchable portion 75 is a portion that substantially contracts in the product longitudinal direction, and is a concept that excludes a portion where the stretchable sheet is disposed in a state where the contraction force is not exerted.
  • a pair of leg side gathers 80 extending along the product longitudinal direction L are provided inside the pair of leg stretchable portions 75 (near the center in the product width direction W).
  • the leg side gathers 80 are provided at the inner end of the side flap 70 in the product width direction, and are erecting and expanding gathers disposed on the inner side in the product width direction than the leg stretchable parts 75.
  • the leg side gathers 80 are arranged on the inner side in the product width direction than the leg stretchable parts 75.
  • the leg side gathers 80 can adopt a conventionally well-known configuration. Specifically, the leg side gathers 80 may be formed of a sheet material different from the side flaps 70.
  • a waist stretchable portion 85 that can be stretched in the product width direction is provided.
  • the waist elastic part 85 contracts between the fastening tapes in the product width direction.
  • the waist elastic part 85 is constituted by an elastic sheet.
  • the members constituting the waist elastic part 85 are not particularly limited, but it is preferable to use a member that is as thin as possible, has low bending rigidity, and has a small width ratio.
  • the waist stretchable portion 85 can easily bend along the body, and the waist stretchable portion 85 is placed along the body without applying a load to the wearer's body. Can be fitted.
  • the waist stretchable portion 85 with a material having a small width, the contraction of the disposable diaper in the product longitudinal direction when the disposable diaper extends in the product width direction is suppressed, and the disposable diaper is placed around the wearer's waist Can be prevented from being pulled down to the crotch side.
  • a stretchable film having a basis weight of 20 to 45 g / m 2 is used as the waist stretchable portion 85.
  • the waist stretchable portion 85 is stretched by 1.5 to 2.5 times the length in the non-stretched state (natural state) and then adhered to the exterior sheet 60 by a hot melt adhesive or heat treatment. .
  • the waist elastic part 85 is disposed between the exterior sheet 60 and the back sheet 60a.
  • the waist stretchable portion 85 is disposed between the core wrap 40b and the back sheet 60a or the exterior sheet 60. It may be.
  • the position of the waist elastic part is not particularly limited. Further, in a region where the absorbent body is not disposed, it may be disposed between the side flap 70 and the back sheet 60a or the exterior sheet 60.
  • the waist stretchable part according to the present embodiment is configured to stretch in the product width direction
  • the waist stretchable part may be configured to stretch in the product width direction and the product longitudinal direction.
  • Fastening tape 90 is attached to the region of the side flap 70 corresponding to the rear waistline region 30.
  • the fastening tape 90 is provided with a base sheet 91 connected to the side flap 70, an engagement hook (not shown) as a plurality of engagement members, and a hook sheet 92 fixed to the base sheet 91; Is provided.
  • the hook sheet 92 is an area where an engagement member is provided, and the above-described waistline holding portion is an area extending from the hook sheet 92 in the product width direction.
  • the hook sheet 92 is fixed to the base sheet 91, specifically, bonded.
  • the hook sheet 92 and the base sheet 91 are preferably joined so that the rigidity of the fastening tape 90 does not become higher than necessary.
  • the hook sheet 92 and the base sheet 91 are joined by a hot melt adhesive applied intermittently such as a dot shape, a line shape, or a spiral shape.
  • the hook sheet 92 and the base sheet 91 may be joined by heat sealing or the like.
  • the base sheet 91 is composed of one or two or more non-woven fabrics stacked.
  • a nonwoven fabric manufactured by a manufacturing method such as spunbond (SB) or spunbond-meltblown-spunbond (SMS) can be used.
  • the basis weight of the nonwoven fabric constituting the base sheet 91 is 30 to 120 g / m 2 , preferably 40 to 90 g / m 2 .
  • the pair of target units 95 are arranged symmetrically with respect to a center line that passes through the center of the disposable diaper 10 in the product width direction and extends in the product longitudinal direction.
  • the target portion 95 is fixed to the surface on the non-skin contact side of the exterior sheet 60 in the front waistline region.
  • the target portion 95 is provided so as to be separated from a position corresponding to the left side of the wearer and a position corresponding to the right side so that the pair of fastening tapes are fixed to each other.
  • the target unit 95 is configured such that the fastening hook of the fastening tape is hooked, and functions as a loop of a hook and loop locking system.
  • the target portion for example, an air-through nonwoven fabric can be used.
  • a fiber nonwoven fabric made of a polyolefin-based thermoplastic synthetic resin fiber or a polyolefin-based thermoplastic synthetic resin film can be used.
  • the loop attached to the target portion can be formed of a polyolefin-based thermoplastic synthetic resin.
  • a non-woven fabric which is a bulky non-woven fabric and which is partly embossed to prevent fluffing on the non-woven fabric surface may be used.
  • the first pattern M11 is attached to the target part.
  • the 1st pattern M11 should just be comprised so that visual recognition is possible from the surface by the side of the non-skin contact of the disposable diaper 10, and should just be attached
  • the first pattern M11 is a diamond-shaped pattern arranged in a lattice pattern, and is formed by embossing the nonwoven fabric constituting the target portion 95.
  • the second pattern M12 is attached to the exterior sheet 60 to which the target portion 95 is fixed.
  • the 2nd pattern M12 should just be comprised so that visual recognition is possible from the surface by the side of the non-skin contact of the disposable diaper 10, and should just be attached
  • the second pattern M12 is a diamond-shaped pattern arranged in a lattice pattern, and is formed by embossing the nonwoven fabric constituting the exterior sheet 60.
  • the diamond symbol of the first symbol is larger than the diamond symbol of the second symbol.
  • the exterior sheet 60 is configured such that a fastening tape can be fastened.
  • the exterior sheet may be made of a non-woven fabric, or may be a sheet material provided with a loop material that hooks the hook material on the non-skin contact surface side.
  • the first symbol M11 and the second symbol M12 may be similar in shape, may have the same size, or may be similar in shape but different in size.
  • the first design M11 and the second design may be at least similar in outline, and include a configuration in which the number of outline lines and the thickness of the lines are different.
  • the first design and the second design are polygons having the same number of corners, and the concept includes a configuration in which the angles of the corners are different. is there.
  • a second symbol M12 similar to the first symbol M11 is attached to the region between the pair of target portions of the exterior sheet. Since the first symbol M11 attached to the target portion and the second symbol M12 attached to the region between the pair of target portions of the exterior sheet are similar, the gap between the pair of target portions and the target portion of the exterior sheet The area can be visually integrated.
  • the wearer can recognize anxiety caused by the small area of the target portion by recognizing the region between the target portions in an integrated manner.
  • the fastening tape can be fixed to the region between the target portions of the exterior sheet, for example, even when the fastening tape is stopped at the position protruding from the target portion, particularly in the region between the target portions.
  • the disposable diaper 10 can be held on the wearer's body by stopping the tape around the front waistline.
  • the region between the pair of target portions 95 is often not used by a general body wearer, and is a region where the fastening tape is not substantially fixed.
  • the target portion is provided in such a region, waste of materials occurs.
  • the target portion 95 made of a material having rigidity higher than that of the sheet material constituting the exterior body, such as the exterior sheet 60 when the arrangement area of the target portion 95 is widened, the rigidity of the entire disposable diaper is increased and the wearing feeling is increased. May get worse.
  • the target portion 95 by disposing the target portion 95 on the left and right sides, it is possible to suppress waste of materials and suppress deterioration of the wearing feeling due to the rigidity of the target portion.
  • the center position in the width direction of the disposable diaper can be recognized by touching the region between the target portions. It is suitable when the center in the width direction of the disposable diaper cannot be recognized visually, such as when it is dark at night. Furthermore, by arranging the target part apart from the left and right, the rigidity of the part where the target part is arranged is higher than the area between the target parts, and wrinkles are less likely to occur in the area where the target part is arranged. .
  • An exterior sheet and a target part consist of a nonwoven fabric.
  • the basis weight of the nonwoven fabric is, for example, 15 to 100 g / m 2 .
  • a composite fiber having a core-sheath structure is selected. This composite fiber is made of a resin whose sheath component has a lower melting point than the resin constituting the core component.
  • the blending ratio of these resins is preferably 50% or more, and a more preferable blending ratio is 100%.
  • the core component / sheath component may be PP (polypropylene) / PE (polyethylene), PP / low melting point PP, PET (polyethylene terephthalate) / low melting point PET, or PET / PE.
  • the present invention is not limited to this.
  • fibers to be mixed with the fibrous material those having good compatibility with the sheath component resin of the fibrous material are selected.
  • fibers such as polyamide such as rayon, PET, PP and nylon, acrylic, urethane and cotton can be selected.
  • the thickness of the fibrous material is 1 to 15 dtex, preferably 1.5 to 9 dtex. If it is less than 1 dtex, the single yarn strength is too low and fiber breakage is likely to occur when engaged with the male member, and web formation on the card becomes difficult and productivity decreases. When it exceeds 15 dtex, the texture is deteriorated, the number of fibers per unit weight is reduced, and the engagement strength with the male member is extremely lowered.
  • the length of the fibrous material used is 25 mm to 100 mm, preferably 30 mm to 60 mm. If the length is less than 25 mm, the fibers are too short, causing fluffing. If the length exceeds 100 mm, it becomes difficult to form a web on the card, and the productivity is lowered.
  • the exterior sheet is preferably constructed using crimped fibers, for example.
  • crimped fiber for example, a fiber using a heat shrinkage crimping method can be used.
  • the heat shrinkage crimping method two or more kinds of raw material polymers having different melting points, for example, a composite fiber of a side-by-side type or a core-sheath type made of polypropylene and polyethylene are spun, and the heat shrinkage due to the difference in the melting points. Crimp can be expressed by the difference.
  • a non-woven fabric using crimped fibers a bulky non-woven fabric can be obtained, and a good texture can be realized while making it easy to visually recognize the embossed pattern.
  • the outer sheet and the target part are disposed on the non-skin-contacting surface of the disposable diaper and are often in contact with the wearer.
  • the touch can be improved.
  • the fiber which comprises a nonwoven fabric functions as a loop material, and it can be made to engage with the hook material of a fastening tape, without providing a loop material separately.
  • the first pattern M11 and the second pattern M12 of the present embodiment are formed by embossing, and the embossing rate of the target portion is configured to be higher than the embossing rate of the exterior sheet.
  • the embossing rate here is the ratio of the area where embossing is formed to the entire area. Since the embossing rate of the target portion is high, fiber fluff can be suppressed, and in particular, when the fastening tape is repeatedly attached and detached, fiber fluff constituting the nonwoven fabric can be suppressed.
  • first symbol M11 and the second symbol M12 of the present embodiment are embossed portions formed by embossing, but the configurations of the first symbol M11 and the second symbol M12 are not limited to this.
  • At least one of the first pattern M11 and the second pattern M12 may be formed by any one of embossing, thermal welding, and ultrasonic sealing.
  • the first pattern M11 or the second pattern M12 by any one of embossing, heat welding, and ultrasonic sealing, the pattern can be easily imparted to the nonwoven fabric at the formation target site during the manufacturing process.
  • the temperature, pressure, and oscillation frequency it is easy to control the degree of the part that becomes the pattern (shading, making it stand out or not stand out, surroundings are sharp, etc.) Easy design.
  • At least one of the first symbol M11 and the second symbol M12 may be constituted by a colored portion of the back sheet disposed between the exterior sheet and the absorber.
  • the colored portion can be provided on the surface of the back sheet on the exterior sheet side.
  • the nonwoven fabric constituting the target portion and the exterior sheet has a plurality of rows of convex fiber dense portions with high fiber material weight, and the fiber material weight is provided between the fiber dense portions provided between the fiber dense portions. It is also possible to provide a plurality of rows of fiber sparse portions having a low groove shape, and the dense fiber portion or the groove portion may be the first symbol M11 or the second symbol M12.
  • first symbol M11 and the second symbol M12 having any one of the above-described configurations may be provided, and a different pattern from the first symbol M11 and the second symbol M12 may be given by other configurations.
  • a first pattern M11 and a second pattern M12 made of embossing may be provided, and a striped pattern made up of fiber dense portions and fiber sparse portions may be applied to the entire target portion or exterior sheet.
  • the third symbol M13 different from the first symbol M11 and the second symbol M12 is attached to the region between the pair of target portions.
  • the third symbol M13 is a colored part printed on the back sheet and is a character symbol.
  • the third pattern M13 is provided at a position that does not overlap the pair of target portions 95.
  • the third symbol M13 is different from the first symbol M11 and the second symbol M12. “Different designs” means that at least the outer shapes are different, and the concept does not include similar shapes.
  • the third symbol M13 having a shape different from the first symbol M11 and the second symbol M12 is provided in the region between the pair of target portions by attaching a third symbol M13 different from the first symbol M11 and the second symbol M12.
  • the wearer can be made aware of the center position in the width direction of the region between the pair of target portions.
  • the position in the center in the width direction of the region between the pair of target portions corresponds to the center in the product width direction of the disposable diaper.
  • the wearer aligns the center of the disposable diaper with the center of the wearer's body when the disposable diaper is worn.
  • the wearer can easily perform alignment at the time of wearing. Since the 3rd pattern M13 is a position which does not overlap with a pair of fastening tape, a wearer can always visually recognize in the state before attaching a fastening tape to a target part.
  • the third pattern M13 is more prominent than the first pattern M11 and the second pattern M12. .
  • the dimension of the third symbol M13 is made larger than the dimensions of the first symbol M11 and the second symbol M12, the color of the third symbol M13, the color of the first symbol M11, and the second symbol.
  • the third design M13 is more than the first design M11 and the second design M12.
  • Can stand out for example, as a dark color design, a design with a large amount of black, a small amount of white, and a large amount of pure color can be selected.
  • the engaging force between the fastening tape and the region between the pair of target portions of the exterior sheet is lower than the engaging force between the fastening tape and the target portion.
  • the hook sheet 92 is not joined to the front end of the fastening tape (the width direction outer side end in the unfolded state shown in FIG. 1), and serves as a gripping portion that the wearer grips when performing the fastening tape attaching / detaching operation.
  • the front end of the fastening tape (the outer end in the width direction in the unfolded state shown in FIG. 1) is located on the inner side in the product width direction than the hook sheet 92 of the fastening tape. Yes. Therefore, when removing the fastening tape from the target portion 95, the wearer pulls the fastening tape from the inside in the product width direction toward the outside in the product width direction.
  • the fastening tape can be removed smoothly.
  • a leg opening 35 surrounding the wearer's leg is formed in a state where the fastening tape 90 is fixed to the target portion 95. Therefore, when a wearer moves a leg, the force from which a fastening tape peels from a target part may act. At this time, the force at which the fastening tape is peeled off from the target portion acts from the leg opening 35 side. Therefore, it acts on the target portion more strongly than the region between the target portions.
  • the engaging force was measured using an autograph tester (AG-X10plus) manufactured by Shimadzu Corporation. Specifically, a sample cut out from the fastening tape to be measured with a hook sheet and a base sheet of 30 mm in width (if it is impossible to cut out with a width of 30 mm, the result is converted per 30 mm width) Got ready. Similarly, the sample which cut out the target part (exterior sheet
  • both samples were pressure-bonded by moving a 700 g roller (diameter 85 mm, width 45 mm) at a speed of 5 mm / min along the main fastening tape attaching / detaching direction.
  • Both the crimped samples were set in an autograph testing machine, and the engaging force of both samples at a pulling speed of 300 mm / min was measured (unit: N / 30 mm).
  • the direction of pulling was set so that the hook sheet surface had an angle of 135 ° with respect to the target tape surface.
  • the peel direction of the hook sheet was the main direction when the fastening tape was removed from the target portion.
  • the length L11 in one product width direction of the pair of target portions is 50 to 90 mm, and the length L12 in the product longitudinal direction of the pair of target portions is 30 to 50 mm.
  • the length L13 in the product width direction of the region between the pair of target portions of the exterior sheet is 20 to 50 mm.
  • the distance between the outer end portions in the product width direction of the pair of target portions is 120 to 230 mm.
  • the length of the fastening tape in the longitudinal direction of the product is 20-40mm from the viewpoint of securing the engagement force and not disturbing the footsteps.
  • the length L12 of the target portion in the product longitudinal direction is preferably larger by 10 mm or more than the length of the fastening tape in the product longitudinal direction in order to adjust the attachment position of the fastening tape.
  • the length of the target portion in the product longitudinal direction not too long, it becomes an indication of the fastening position of the fastening tape, and an appropriate position can be guided without losing the fastening position.
  • the width in the product width direction of the gripping part that is the tip of the fastening tape is about 10 mm from the viewpoint of operability.
  • the width of the hook sheet in the product width direction is 15 to 30 mm from the viewpoint of the stability of the engagement and the operability.
  • the length L11 in the product width direction of one of the target portions may be at least a dimension that allows the hook sheet to be fastened, and can be 50 to 90 mm.
  • the length L11 of one product width direction of the target part is longer than the length of the hook sheet in the width direction, the attachment position of the hook sheet can be changed and can be adjusted according to the swelling of the stomach.
  • the length L13 in the product width direction of the region between the pair of target portions of the exterior sheet is 20 to 50 mm, a recognizable size design can be provided.
  • the disposable diaper 10 is enclosed in a package or the like, use a sample that is removed from the package and left in that state for 12 hours in an atmosphere of 20 ° C. ⁇ 2 ° C. and relative humidity 60% ⁇ 5% RH.
  • the length of this state of the disposable diaper 10 is measured using a spring measure (tape: glass fiber-containing vinyl chloride coating) manufactured by Shinwa Measurement Co., Ltd. so as to be along the measurement target part.
  • a spring measure tape: glass fiber-containing vinyl chloride coating
  • Shinwa Measurement Co., Ltd. Shinwa Measurement Co., Ltd.
  • the crotch stretchable part 200 is configured to maintain a flat shape in a part of the crotch region when the disposable diaper is worn rather than the other part of the absorber 40.
  • the crotch stretchable portion 200 is configured to be stretchable at least in the product longitudinal direction L or the product width direction W.
  • the crotch stretchable part 200 is provided separately from the leg stretchable part 75 and overlaps the absorbent core 40a (in this embodiment, between the core wrap 40b that wraps the absorbent core 40a and the backsheet 60a). Position), 60% or more of the length in the product width direction of the absorbent core 40a at the overlapping position is contracted. In this way, by shrinking the portion where the absorbent core 40a is disposed by the crotch stretchable portion 200, the absorbent core 40a shrinks, and it is easy to maintain a flat shape compared to the portion where the absorbent core 40a does not shrink. Become.
  • the absorbent core 40a located in the front waistline region and the rear waistline region located outside the product longitudinal direction from the crotch stretchable portion 200 is not contracted by the crotch stretchable portion 200. Therefore, the crotch stretchable part 200 that is maintained in a flat shape at the crotch part of the disposable diaper in a state of being held around the waist / waist of the wearer by the fastening tape does not excessively adhere to the body, resulting in the crotch.
  • the stretchable part 200 is appropriately placed along the body.
  • the crotch stretchable portion 200 is stretchable along the product longitudinal direction L, the front waistline region 20 and the back waistline region 30 are easily raised by contraction of the crotch stretchable portion 200, and when worn, A flat crotch region can be formed along the body at the part.
  • the disposable diaper 10 can be stably attached so that the crotch region 25 of the disposable diaper 10 is disposed in the crotch region of the wearer by the contraction of the crotch stretchable part 200.
  • the crotch stretchable part 200 may be configured to extend to the front waistline region 20 side and the back waistline region 30 side across the center of the disposable diaper 10 in the product longitudinal direction L.
  • center of the crotch expansion / contraction portion 200 in the product longitudinal direction L is arranged on the front waistline region 20 side of the center of the disposable diaper 10 in the product longitudinal direction L.
  • the amount of skin expansion and contraction (the amount of change in length) on the surface of the wearer's body ) Is larger on the dorsal side (buttock) than on the ventral side.
  • the product length of the rear waistline region 30 in the natural state of the disposable diaper 10 can be made longer than the length in the product longitudinal direction L of the front waistline region 20. Therefore, even if there is a movement of the wearer, the front waistline region 20 and the back waistline region 30 of the disposable diaper 10 are in a direction along the product longitudinal direction L due to the movement of the wearer's skin. It becomes possible to suppress the situation of moving.
  • the crotch stretchable part 200 is preferably composed of a stretchable sheet.
  • the absorbent core 40a in the region where the stretchable sheet is disposed is uniformly shrunk, and it becomes easier to maintain a flat shape.
  • the stretchable sheet can be constituted by a stretchable sheet similar to the leg stretchable part 75, for example.
  • the crotch stretchable portion 200 may be configured by arranging a plurality of thread-like or band-like elastic members made of polyurethane elastic fiber or natural rubber.
  • the interval between the elastic members is 7 mm or less, more preferably 5 mm or less.
  • it is desirable that the difference in the interval between adjacent elastic members is 2 mm or less.
  • the elongation rate of the crotch stretchable part 200 is preferably 1.2 times or more and 1.8 times or less.
  • the expansion rate of the crotch expansion / contraction part 200 is set to 1.4 times.
  • the elongation rate means the degree of elongation in the expansion / contraction direction (product longitudinal direction L) of the crotch expansion / contraction part 200, and is defined as follows.
  • the elongation rate is in the expansion / contraction direction (product longitudinal direction L in the present embodiment). It means the degree of expansion of the crotch expansion / contraction part 200 and is defined as follows.
  • Elongation rate (length in the expansion / contraction direction of the crotch expansion / contraction part 200 in the maximum expansion state) / (length in the expansion / contraction direction of the crotch expansion / contraction part 200 in the natural state)
  • the measurement of an expansion rate is the same as that of the above-mentioned leg expansion-contraction part, and abbreviate
  • the elongation rate of the crotch stretchable part 200 By setting the elongation rate of the crotch stretchable part 200 to 1.2 times or more and 1.8 times or less, it is possible to suitably follow the stretch of the wearer's skin.
  • the expansion rate of the crotch expansion / contraction part 200 is less than 1.2 times, the crotch expansion / contraction part 200 is not sufficiently contracted in the natural state, and the disposable diaper 10 is compared with the case where the crotch expansion / contraction part 200 is not provided.
  • the shrinkage of the absorber region in the crotch of the wearer is small, and it becomes insufficient to take a flat shape along the body in the crotch of the wearer.
  • the expansion rate of the crotch expansion / contraction part 200 is larger than 1.8 times, the contraction dimension of the crotch expansion / contraction part 200 in the contraction direction becomes too large.
  • the disposable diaper 10 is likely to be in a close contact state, and easily displaced downward from the wearer.
  • the contraction amount of the crotch stretchable part 200 in the product longitudinal direction L may be configured to be 2 to 8% of the length of the disposable diaper 10 in the product longitudinal direction L.
  • the amount of shrinkage is the length “b (mm)” in a stretched state so that the wrinkles are sufficiently small and the surface of the sample is almost smooth, and in the natural state in the direction along the stretching direction of the sample. It is the difference from the length “a (mm)” and can be calculated by (b ⁇ a).
  • the inventor assumes that the amount of contraction of the crotch stretchable part 200 in the product longitudinal direction L is 2 to 8% of the length of the disposable diaper 10 in the product longitudinal direction L, and the process of mounting the disposable diaper 10 on the wearer. In the above, it was confirmed that the crotch stretchable part 200 is preferably easily along the wearer's body.
  • the amount of shrinkage of the crotch stretchable part 200 in the product longitudinal direction L is larger than 8%, the crotch stretchable part 200 is contracted too much, and the disposable diaper 10 is not sufficiently short in the product longitudinal direction L. It becomes difficult to attach the diaper 10 to the wearer's body, or the disposable diaper 10 and the wearer's body are in close contact with each other in the crotch region 25 and are likely to be displaced.
  • the amount of shrinkage of the crotch stretchable part 200 in the product longitudinal direction L is less than 2%, the effect itself of the crotch stretchable part 200 that brings the disposable diaper 10 closer to the wearer's body becomes difficult to manifest.
  • the center of the crotch expansion / contraction portion 200 in the product longitudinal direction L is arranged on the front waistline region 20 side of the center of the disposable diaper 10 in the product longitudinal direction L. Moreover, the crotch expansion / contraction part 200 is arrange
  • the thickness of the elastic member to be used and the pitch to be arranged can be appropriately selected. It is preferable that the entire side edge portion in the product width direction W of the absorbent core 40a is in a contracted state in the stretched state.
  • a notch 115 (notch 125) is formed in the crotch region 25 of the absorber 40.
  • the notch 115 and the notch 125 are regions where the absorbent core 40a constituting the absorber 40 is not present.
  • the notch 115 and the notch 125 correspond to a low-rigidity part in which the basis weight of the absorbent core 40a is lower than other parts of the absorbent core 40a.
  • the area of the notch 115 and the notch 125 is set so that the basis weight of the absorbent core 40a is lower than the other parts of the absorbent core 40a. Also good.
  • the notch 115 and the notch 125 exist along the edge of the crotch stretchable part 200 in the product longitudinal direction L. Even if the notch 115 and the notch 125 are formed, the absorbent core 40a located in the front waistline region 20 and the rear waistline region 30 is completely separated from the absorbent core 40a located in the crotch region 25. It is preferable that it is continuous especially in the product width direction.
  • the notch 115 and the notch 125 become wider in the product longitudinal direction L (the natural state of the disposable diaper 10) as they go outward in the product width direction W. With such a shape, the outer side of the absorbent core 40a in the product width direction W is more easily contracted, so that a flat “bottom” is more easily formed. Furthermore, the absorbent core 40a located closer to the front waistline region 20 than the notch 115 and the absorbent core 40a located closer to the rear waistline region 30 than the notch 125 rise from the "bottom part", and the wearer's Since it becomes easy to curve along the roundness of the body (abdomen and buttocks), the shape of the disposable diaper itself can be closer to the shape of the wearer's body.
  • the edge of the notch 115 (notch 125) close to the front waistline region 20 (rear waistline region 30) is arcuate.
  • the edge of the notch 115 (notch 125) is shaped such that the center of the arc is located in the rear waistline region 30 (front waistline region 20) with respect to the edge. With such a shape, deformation along the roundness of the wearer's body is easier and more likely to occur.
  • the manufacturing method of an absorbent article includes at least a component part forming step, a component part placing step, a leg periphery forming step, and a cutting step.
  • the components constituting the absorbent article are formed.
  • the absorbent body 40 is molded by laminating absorbent materials.
  • the elastic sheet constituting the leg stretchable part 75 on the web constituting the back sheet, the elastic sheet constituting the leg stretchable part 75, the other web such as the web constituting the top sheet, the leakproof sheet, the absorber, the leg stretchable part
  • the components constituting the disposable diaper 10 such as 75 are placed on the web constituting the back sheet.
  • the leg periphery forming step the top sheet 50, the exterior sheet 60, and the back sheet 60a are cut. Thereby, the leg opening part 35 arrange
  • the continuous body in which the top sheet 50, the back sheet 60a, the absorber 40, and the like are arranged is cut into the size of one product along the product width direction W. Thereby, the disposable diaper 10 is manufactured.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
PCT/JP2013/080239 2012-11-09 2013-11-08 使い捨ておむつ Ceased WO2014073637A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SG11201503545XA SG11201503545XA (en) 2012-11-09 2013-11-08 Disposable diaper
CN201380058457.1A CN104768511B (zh) 2012-11-09 2013-11-08 一次性尿布
IN4292DEN2015 IN2015DN04292A (enExample) 2012-11-09 2013-11-08
KR1020157013390A KR101778870B1 (ko) 2012-11-09 2013-11-08 일회용 기저귀
AU2013342428A AU2013342428B2 (en) 2012-11-09 2013-11-08 Disposable diaper
BR112015009992A BR112015009992A2 (pt) 2012-11-09 2013-11-08 fralda descartável

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012247497A JP5291233B1 (ja) 2012-11-09 2012-11-09 使い捨ておむつ
JP2012-247497 2012-11-09

Publications (1)

Publication Number Publication Date
WO2014073637A1 true WO2014073637A1 (ja) 2014-05-15

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ID=49396702

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/080239 Ceased WO2014073637A1 (ja) 2012-11-09 2013-11-08 使い捨ておむつ

Country Status (10)

Country Link
JP (1) JP5291233B1 (enExample)
KR (1) KR101778870B1 (enExample)
CN (1) CN104768511B (enExample)
AU (1) AU2013342428B2 (enExample)
BR (1) BR112015009992A2 (enExample)
IN (1) IN2015DN04292A (enExample)
MY (1) MY165123A (enExample)
SG (1) SG11201503545XA (enExample)
TW (1) TWI631938B (enExample)
WO (1) WO2014073637A1 (enExample)

Cited By (4)

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EP3202382A4 (en) * 2014-09-30 2018-05-02 Daio Paper Corporation Absorbent article
EP3424476A4 (en) * 2016-02-29 2019-03-20 Daio Paper Corporation DISPOSABLE DIAPERS
US11850128B2 (en) 2018-09-27 2023-12-26 The Procter And Gamble Company Garment-like absorbent articles
US12090035B2 (en) 2020-06-12 2024-09-17 The Procter & Gamble Company Absorbent article having fastening system

Families Citing this family (5)

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TWI681560B (zh) * 2019-04-23 2020-01-01 立景光電股份有限公司 顯示面板及其製造方法
EP4103123B1 (en) 2020-02-13 2024-09-11 The Procter & Gamble Company Absorbent article with fastening system
JP7053699B2 (ja) * 2020-02-27 2022-04-12 株式会社リブドゥコーポレーション 吸収性物品
JP2021159348A (ja) * 2020-03-31 2021-10-11 王子ホールディングス株式会社 吸収性物品
JP7096857B2 (ja) * 2020-05-12 2022-07-06 株式会社リブドゥコーポレーション 吸収性物品

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JP2010507417A (ja) * 2006-10-27 2010-03-11 パウル ハルトマン アクチェンゲゼルシャフト 改善された止着システムを有する吸収性失禁用品

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US8663184B2 (en) * 2005-08-05 2014-03-04 The Procter & Gamble Company Absorbent article with a multifunctional side panel
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JP2002065740A (ja) * 2000-09-01 2002-03-05 Uni Charm Corp 連続フィラメントを有する裏面シートを用いた吸収性物品
JP2010507417A (ja) * 2006-10-27 2010-03-11 パウル ハルトマン アクチェンゲゼルシャフト 改善された止着システムを有する吸収性失禁用品

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3202382A4 (en) * 2014-09-30 2018-05-02 Daio Paper Corporation Absorbent article
EP3424476A4 (en) * 2016-02-29 2019-03-20 Daio Paper Corporation DISPOSABLE DIAPERS
US11013643B2 (en) 2016-02-29 2021-05-25 Daio Paper Corporation Disposable diaper
US11850128B2 (en) 2018-09-27 2023-12-26 The Procter And Gamble Company Garment-like absorbent articles
US11918442B2 (en) 2018-09-27 2024-03-05 The Procter & Gamble Company Garment-like absorbent articles
US11998427B2 (en) 2018-09-27 2024-06-04 The Procter & Gamble Company Nonwoven webs with visually discernible patterns
US12090035B2 (en) 2020-06-12 2024-09-17 The Procter & Gamble Company Absorbent article having fastening system

Also Published As

Publication number Publication date
JP5291233B1 (ja) 2013-09-18
TWI631938B (zh) 2018-08-11
CN104768511A (zh) 2015-07-08
TW201440743A (zh) 2014-11-01
AU2013342428B2 (en) 2017-12-07
BR112015009992A2 (pt) 2019-12-17
AU2013342428A1 (en) 2015-06-11
IN2015DN04292A (enExample) 2015-10-16
JP2014094159A (ja) 2014-05-22
KR101778870B1 (ko) 2017-09-14
MY165123A (en) 2018-02-28
CN104768511B (zh) 2018-07-13
SG11201503545XA (en) 2015-06-29
KR20150085514A (ko) 2015-07-23

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