WO2013115346A1 - 使い捨ておむつ - Google Patents
使い捨ておむつ Download PDFInfo
- Publication number
- WO2013115346A1 WO2013115346A1 PCT/JP2013/052315 JP2013052315W WO2013115346A1 WO 2013115346 A1 WO2013115346 A1 WO 2013115346A1 JP 2013052315 W JP2013052315 W JP 2013052315W WO 2013115346 A1 WO2013115346 A1 WO 2013115346A1
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- WO
- WIPO (PCT)
- Prior art keywords
- sheet
- fastening tape
- hook
- disposable diaper
- main body
- 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
- A61F13/56—Supporting or fastening means
- A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop
- A61F13/622—Fabric strip fastener elements, e.g. hook and loop
- A61F13/625—Fabric strip fastener elements, e.g. hook and loop characterised by the hook
-
- 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
-
- 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
- A61F13/51—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 outer layers
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
- A61F13/51474—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure
- A61F13/51476—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure being three-dimensional, e.g. embossed, textured, pleated, or with three-dimensional features, like gathers or loops
-
- 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
- A61F13/51—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 outer layers
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
- A61F13/51496—Backsheet, i.e. the impermeable cover or layer furthest from the skin having visual effects
-
- 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
-
- 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
- A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop
- A61F13/622—Fabric strip fastener elements, e.g. hook and loop
- A61F13/627—Fabric strip fastener elements, e.g. hook and loop characterised by the loop
-
- 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
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
- A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
- A61F2013/15357—Stiffness, e.g. Taber rigidity
-
- 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
- A61F13/84—Accessories, not otherwise provided for, for absorbent pads
- A61F2013/8497—Accessories, not otherwise provided for, for absorbent pads having decorations or indicia means
Definitions
- the present invention relates to a disposable diaper including a fastening tape on one of a front waistline portion and a rear waistline portion.
- the fastening tape is particularly uncomfortable in terms of texture and appearance as compared with other parts of the disposable diaper formed of a nonwoven fabric or the like.
- the fastening tape since the fastening tape has a function of holding the disposable diaper on the body, the fastening tape attached to the part that holds the disposable diaper on the body, specifically, the back body (or the front body) is used as the front body. If the part (hook part) that can be engaged with (the back body) cannot be recognized, the fastening tape can be easily removed and the disposable diaper can be removed from the body, along with the impression that the fastening tape does not feel uncomfortable. There is a problem that causes anxiety.
- the present invention has been made in view of such a situation, and an object thereof is to provide a disposable diaper that can give an impression having a sufficient engaging force while greatly reducing the texture of the fastening tape and the uncomfortable appearance.
- the present invention is characterized by a front waistline part (front waistline part 20), a rear waistline part (rear waistline part 40) and a crotch part (inseam part 30), and a liquid retaining absorbent (absorber 35).
- a vertically long absorbent main body (absorbent main body 15), a side flap (side flap 50) provided on at least a part of a side edge in the width direction of the absorbent main body, the front flap attached to the front
- a fastening tape fastening tape 100 configured to extend from one of the waistline portion or the rear waistline portion to the outside in the width direction of the absorbent main body and fasten to the other of the front waistline portion or the rear waistline portion.
- the fastening tape includes a base sheet (base sheet 120) and a hook sheet (hook sheet 110) provided with a plurality of engagement hooks.
- the hook sheet existing area (hook sheet existing area SHS) provided with the hook sheet in the longitudinal direction of the absorbent main body
- the KES bending stiffness value per length and the KES bending stiffness value per unit length in the width direction of the absorbent main body are 1.64 gf ⁇ cm2 / cm or less, and the height of the engagement hook is 60 to
- the color difference ⁇ E between the hook sheet existence area on the inner surface side of the fastening tape and the side flap adjacent to the fastening tape is 200 ⁇ m
- the color difference of L * is ⁇ L in the L * a * b * color system. Assuming that the color difference between * and a * is ⁇ a * and the color difference between b * is ⁇ b *, it is 6.5 or more.
- FIG. 1 is a plan view of a disposable diaper 10 according to an embodiment of the present invention.
- FIG. 2 is an enlarged view of a fastening tape 100 portion (side flap 50 side) of the disposable diaper 10 according to the embodiment of the present invention.
- FIG. 3 is an enlarged view of a fastening tape 100 portion (back sheet 70 side) of the disposable diaper 10 according to the embodiment of the present invention.
- FIG. 4 is a cross-sectional view of the disposable diaper 10 taken along line F4-F4 shown in FIG.
- FIG. 5 is a partially enlarged plan view of the fastening tape 100 according to the embodiment of the present invention.
- FIG. 1 is a plan view of a disposable diaper 10 according to this embodiment.
- the disposable diaper 10 is an open type having a front waistline portion 20, a crotch portion 30, and a rear waistline portion 40.
- the disposable diaper 10 can be suitably used particularly for infants.
- the front waistline portion 20, the crotch portion 30, and the rear waistline portion 40 constitute an absorbent main body 15.
- the absorbent main body 15 has a vertically long shape including the liquid retaining absorbent body 35.
- the absorber 35 is provided across the front waistline portion 20, the crotch portion 30, and the rear waistline portion 40.
- the absorbent body 35 has a shape such that the width at the central portion in the longitudinal direction DL of the absorbent main body 15 is narrowed.
- the shape of the absorber 35 is not limited to the shape shown in FIG. 1 and may be a simple rectangle. Further, the absorber 35 may be provided at least in the crotch part 30.
- the absorbent main body 15 is the same as a conventional open-type disposable diaper, and can be appropriately configured using a known member or material.
- the absorbent main body 15 is provided in a liquid-permeable surface sheet (not shown), a three-dimensional gather provided at the side edge of the absorbent main body 15 along the longitudinal direction DL, and the rear waistline portion 40 along the width direction DW. You may have a waist gather.
- Side flaps 50 are provided on the side edges of the absorbent main body 15 in the width direction DW.
- the side flap 50 is configured by one or two or more non-woven fabrics that are stacked.
- the side flap 50 is provided over the entire region in the longitudinal direction DL of the absorbent main body 15. That is, the side flap 50 is provided from the front waistline portion 20 to the rear waistline portion 40.
- the width of the side flap 50 corresponding to the crotch portion 30 is narrower than the width of the side flap 50 corresponding to the front waistline portion 20 and the rear waistline portion 40.
- the side flaps 50 do not necessarily have to be provided over the entire region in the longitudinal direction DL of the absorbent main body 15, and may be provided only in a region corresponding to the rear waistline portion 40, for example.
- a leg elastic member 55 that can be expanded and contracted along the longitudinal direction DL of the absorbent main body 15 is provided on a side edge portion in the width direction DW of the absorbent main body 15, specifically, the side flap 50.
- the absorbent main body 15 is contracted in the longitudinal direction DL by the leg elastic member 55.
- the absorbent main body 15 thus contracted can be extended in the longitudinal direction DL particularly on the rear waistline portion 40 side.
- a fastening tape 100 is attached to the side flap 50. Specifically, the fastening tape 100 extends from the rear waistline portion 40 to the outside in the width direction DW of the absorbent main body 15. The fastening tape 100 is configured to be fixed to the front waistline portion 20. A hook sheet 110 (not shown in FIG. 1, see FIG. 2) of the fastening tape 100 is engaged with a target tape 60 provided on the back sheet 70 (not shown in FIG. 1, see FIG. 3) side of the front waistline portion 20. To do.
- the fastening tape 100 may be attached to the side flap 50 so as to extend from the front waistline portion 20 to the outside in the width direction DW of the absorbent body 15 instead of the rear waistline portion 40, but is laid on its back In the case of infants who frequently change disposable diapers, the fastening tape 100 is preferably attached to the rear waistline portion 40.
- FIG. 2 is an enlarged view of the fastening tape 100 portion (side flap 50 side) of the disposable diaper 10.
- FIG. 3 is an enlarged view of the fastening tape 100 portion (back sheet 70 side) of the disposable diaper 10.
- FIG. 4 is a cross-sectional view of the disposable diaper 10 taken along line F4-F4 shown in FIG.
- the fastening tape 100 is attached to the region of the side flap 50 corresponding to the rear waistline portion 40 (see FIG. 1).
- the fastening tape 100 includes a hook sheet 110 provided with a plurality of engagement hooks 111 and a base sheet 120 formed of a nonwoven fabric.
- the base sheet 120 may be a non-woven fabric laminated with a film.
- the hook sheet 110 is joined to the base sheet 120.
- the hook sheet 110 and the base sheet 120 are preferably joined so that the rigidity of the fastening tape 100 does not become higher than necessary.
- the hook sheet 110 and the base sheet 120 are joined by a hot-melt adhesive applied intermittently such as a dot shape, a line shape, or a spiral shape.
- the hook sheet 110 and the base sheet 120 may be joined by heat sealing or the like.
- the size of the hook sheet 110 is larger than the size of a conventional standard hook sheet.
- the widths in the width direction DW and the longitudinal direction DL are set to 20 to 40 mm and 30 to 50 mm, respectively.
- the widths of the conventional standard hook sheet in the width direction DW and the longitudinal direction DL are 10 to 30 mm and 15 to 30 mm, respectively. Since the size of the hook sheet 110 is large in this way, the KES bending rigidity value of the fastening tape 100 described later is lowered to make the fastening tape 100 flexible, and the hook sheet 110 is recognized even if the height of the engagement hook 111 is lowered. It is easy to be done.
- the height of the engagement hook 111 is set to 60 to 200 ⁇ m.
- the hook sheet 110 having such a height of the engagement hook 111 is known and a commercially available one can be used.
- a commercially available hook sheet is a hook sheet having an engagement hook with a target height by applying heat and pressure by adjusting the clearance between both rolls between the hot rolls having a smooth surface. It was.
- the base sheet 120 is configured by one or a plurality of two or more stacked sheets, specifically, a nonwoven fabric or a sheet obtained by laminating a film on the nonwoven fabric.
- Examples of the base sheet 120 include spunbond (SB) or spunbond-meltblown-spunbond (SMS), non-woven fabric manufactured by a process such as through-air, and a sheet in which a thermoplastic film is laminated to various non-woven fabrics such as spunbond. Can be used.
- the base sheet 120 can also be configured to have two or more sheets stacked in particular.
- the basis weight per nonwoven fabric sheet is 10 to 80 g / m 2 , preferably 20 to 55 g / m 2 .
- the thickness of the entire base sheet 120 is 150 ⁇ m to 550 ⁇ m, preferably 250 ⁇ m to 500 ⁇ m, as described above.
- the basis weight is increased from 60 g / m 2
- the bulk of the nonwoven fabric fiber increases, so it is necessary to increase the number of heat fusion points in order to interlace and fix the constituent fibers, compared to the bending rigidity of the hook sheet 110
- the bending rigidity of the base sheet 120 becomes conspicuous. If the thickness exceeds 550 ⁇ m, the thickness of the base material sheet 120 itself is given to the user with a sense of foreign matter (change from the impression of fabric to the impression of plastic). The unity with the material sheet 120 will be affected.
- the basis weight is smaller than 10 g / m 2, it is difficult to secure sufficient strength as the base sheet 120 to which the hook sheet 110 is attached. If the thickness is less than 150 ⁇ m, the hook sheet 110 is disposable. When the diaper 10 is stopped or removed from the disposable diaper 10, the attaching / detaching operation becomes difficult.
- the base sheet 120 is formed by stacking a plurality of sheets, so that the basis weight per sheet is kept lower than when using a single non-woven fabric with a higher basis weight (more preferably, when a plurality of sheets are stacked)
- the nonwoven fabric having a weight per unit area of the above-mentioned range may be used).
- the above-mentioned aim can be realized in a more balanced manner by stacking two or three sheets and dividing them into a plurality of sheets and making the total thickness 550 ⁇ m or less.
- the thickness of the nonwoven fabric was measured using a thickness meter (thickness meter manufactured by Tester Sangyo Co., Ltd.) having a measurement terminal shape of a circle ( ⁇ 5 mm) and a load of 1.23 N at room temperature of 20 ° C.
- the sheets can be joined together by various means.
- the hot melt adhesive is applied to each other by applying lines (including spiral shapes) or dots. It is preferable from the viewpoint of flexibility and productivity to fix the sheet.
- the nonwoven fabric is preferably bonded in a network pattern using an adhesive of 2 g / m 2 to 8 g / m 2 .
- the fastening tape 100 extends in the longitudinal direction of the absorbent main body 15 from the base end portion 100b attached to the side flap 50 toward the free end portion 100f located on the opposite side of the base end portion 100b. It has a shape with a narrow width in DL.
- the difference d between the width along the longitudinal direction DL at the base end portion 100b and the width along the longitudinal direction DL of the absorbent main body 15 at the end portion of the hook sheet existence area SHS near the base end portion 100b is the longitudinal direction DL. Is 7.5 mm or less on one end side, and preferably 5.0 mm or less. For this reason, the presence of the base end part 100b (joint part with the disposable diaper 10) can be given a relatively small impression, and the sense of unity between the fastening tape 100 and the disposable diaper 10 can be enhanced.
- corner portion of the free end portion 100f has a round shape. That is, the corner portion of the free end portion 100f is cut into a round shape and is not angular. Further, the vicinity of the end portion of the side flap 50 on the base end portion 100b side is similarly rounded.
- an embossed portion 80 is formed on the back sheet 70 of the disposable diaper 10.
- the embossed portion 80 having the same pattern is also formed on the fastening tape 100, specifically, the base material sheet 120. That is, it is preferable that the outer surface of the base sheet 120, which is the surface opposite to the surface on which the hook sheet 110 is provided, and the outer surface of the absorbent main body 15 have substantially the same pattern or color. .
- substantially the same color means that the color to be compared is in an adjacent hue or the same hue with respect to one color in the Oswald hue circle.
- the non-woven fabric on the back sheet 70 side and the non-skin contact surface side (clothing side) non-woven fabric of the absorbent main body 15, that is, the back sheet 70 surface may have the same non-woven embossed pattern or the same material (fibers constituting the same) May be used, and the nonwoven fabric types may be equal, and more preferably, the basis weight thereof may be approximately equal).
- the base material sheet 120 has the hot embossing area
- the light transmittance of the hot embossed region 90 is different from the light transmittance of the non-embossed region that has not been heat embossed.
- the hot embossed region 90 is a rhombus (0.5 mm ⁇ 1.0 mm), but the shape of the hot embossed region 90 is not necessarily a rhombus, and may be a square or a circle.
- the heat embossed area 90 is visible from the hook sheet existing area SHS side of the fastening tape 100.
- the size (diameter) of the upper end portion of the engagement hook 111 is smaller than the size of the heat embossed region 90.
- “Visible” means a distance of about 30 to 50 cm in a brightly lit room (standard: 500 to 750 lx (lux)) in daylight white (standard color temperature 4600 to 5400 K (Kelvin)). This means that when a subject who has good visual acuity (1.0 or more) in both eyes looks at the object, he can see the embossed pattern.
- the color difference ⁇ E between the hook sheet existing area SHS on the inner surface side of the fastening tape 100 and the side flap 50 adjacent to the fastening tape 100 specifically, the side flap area SSF where the side flap 50 and the fastening tape 100 overlap.
- the color difference of L * is ⁇ L *
- the color difference of a * is ⁇ a *
- the color difference of b * is 6.5 or more.
- ⁇ E can be calculated by (Equation 1).
- the light transmittance of the hook sheet 110 from the front end side of the engagement hook 111 to the base sheet 120 side is preferably 60% to 85%.
- the light transmittance was measured according to the standard of JIS-K7105, and a color difference meter (Nippon Denshoku Industries Co., Ltd. Sakai Photometric Color Difference Meter Z-300A) was used. Specifically, a sample having a width of 5 mm and a length of 5 mm is sandwiched between turbidimeters to obtain a TT value, and the obtained TT value can be obtained as a total light transmittance (%).
- the base end portion 100 b of the fastening tape 100 is attached to the side flap 50 and the back sheet 70.
- the fastening tape 100 and the side flaps 50 and the back sheet 70 may also be joined by a hot melt adhesive applied intermittently, such as in the form of dots, lines, or spirals. preferable.
- the bending stiffness value and the KES bending stiffness value per unit length in the width direction DW are 1.64 gf ⁇ cm2 / cm or less.
- Table 1 shows an outline of the configurations and test results of the fastening tapes according to Examples 1 to 6 and the fastening tapes according to Comparative Examples 1 to 3 (hereinafter simply referred to as Examples and Comparative Examples as appropriate). Show.
- the overall dimensions (fastening tape existence area SALL) in the width direction DW of the fastening tape according to the example and the comparative example are 60 mm
- the hook sheet existence area SHS (including the free end portion 100f) is 25 mm
- the adjacent area SB The dimension of the area where the hook sheet 110 does not exist was 5 mm.
- the dimension of the side flap region SSF in the width direction DW was 20 mm.
- Bending characteristics were determined by using KES-FB2 manufactured by Kato Tech Co., Ltd., and fixing each sample (a sample obtained by cutting the hook sheet existing area SHS together with the base sheet 120) between the chucks (the skin side of the fastening tape in the diaper ( Measured by bending the front side to the maximum curvature + 2.5cm-1, then bending back to the maximum curvature -2.5cm-1 and then back.
- MD bending shown in Table 1 means bending in the longitudinal direction DL
- CD bending means bending in the width direction DW.
- the hook height of each sample was measured in a state where the sample was not pressurized.
- the measurement environment was a temperature of 20 ⁇ 2 ° C., a relative humidity of 65 ⁇ 5%, and a microscope (VHX-900 manufactured by Keyence Corporation) was used as a measuring instrument.
- VHX-900 manufactured by Keyence Corporation
- a microscope scale was adjusted to the enlarged image, and the height and thickness of the sample were measured. This operation was performed 10 times, and an average value of 10 times was taken as an acquired value.
- the coordinates L, a, and b were measured using a colorimeter (Minolta mode CR-300).
- the base sheet 120 (with the hook sheet 110 mounting surface facing up) and the hook sheet 110 (with the engaging hook 111 side facing up) were arranged in this order.
- the size of the hook sheet 110 was smaller than the size of the base material sheet 120, and the values of L *, a *, and b * were measured at the position where only the base material sheet 120 exists (adjacent region SB).
- the values of L *, a *, and b * at the position where the hook sheet 110 and the base sheet 120 overlap each other were measured.
- the back flap 70 side of the side flap 50 was placed on the white standard plate, and the values of L *, a *, and b * in the side flap 50 were measured.
- ⁇ E (see Equation 1) was calculated for each region, specifically, the hook sheet existence area SHS and the adjacent area SB, and the hook sheet existence area SHS and the side flap 50 area.
- Table 3 shows the measurement results of Example 1.
- Table 4 shows the measurement results of Example 2. As shown in Table 3 and Table 4, among the same examples, tests were performed on a plurality of samples in which the color of the base sheet 120 was changed. The hook height used in Example 1 and Example 2 was 100 ⁇ m.
- the nonwoven fabric shown in Table 3 was used, and it confirmed with what colored the nonwoven fabric.
- the hook sheet was based on white, and the hook height was 100 ⁇ m.
- the hook sheet was based on white, and the hook height was 100 ⁇ m.
- the hook sheet may be colored.
- the area A corresponds to the hook sheet existence area SHS
- the area B corresponds to the side flap area SSF.
- the length of the hook sheet existing area SHS The KES bending stiffness value in the direction DL and the KES bending stiffness value in the width direction DW are 1.64 gf ⁇ cm 2 / cm or less.
- the height of the engagement hook 111 is 60 to 200 ⁇ m.
- the color difference ⁇ E between the hook sheet existence area SHS and the side flap area SSF of the side flap 50 is 6.5 or more.
- the fastening tape 100 in the disposable diaper 10 can have a texture and appearance similar to those of a non-woven fabric and the like, instead of a plastic texture or appearance like a conventional hook fastener. That is, the texture of the fastening tape 100 and the uncomfortable appearance can be greatly reduced, and a sense of unity with the disposable diaper body, that is, a worn article worn by a person or the like can be nurtured.
- the fastening tape 100 in which the difference from the main body of the disposable diaper 10 is reduced it is easy to visually recognize that the fastening tape 100 is provided, so that the disposable diaper 10 that is the original function of the fastening tape 100 is provided.
- the user is not anxious about the function of holding the body. That is, according to the fastening tape 100, an impression that the disposable diaper 10 is of higher quality can be given.
- the fastening tape 100 that is a portion to be engaged is made to have the above-described color difference with respect to the adjacent portion, so that the fastening tape 100 is easily visually recognized.
- laying a diaper on the wearer's body deploying the fastening tape 100 outward in the width direction DW, and giving the impression that the fastening tape 100 is provided when the user visually recognizes the inner side of the fastening tape 100 It is necessary.
- the user can use the disposable diaper 10 without feeling uneasy while feeling a good texture of the fastening tape 100.
- the base sheet 120 is formed of two or more sheets (nonwoven fabrics), and the basis weight per sheet is 10 to 60 g / m 2 . Further, the total thickness of the nonwoven fabric is 150 to 550 ⁇ m.
- the light transmittance of the heat embossed region 90 is different from the light transmittance of a non-embossed region that has not been heat embossed. Further, the heat embossed area 90 is visible from the hook sheet existence area SHS side. Therefore, the heat embossing pattern that gives the impression of the base sheet 120 as a non-woven fabric can be permeated and visually recognized, and the engagement hook 111 is formed smaller than the heat embossed region 90, so that the state of the heat embossed region 90 is obtained.
- the visual impression is that the engaging hook 111 is mixed. That is, it becomes difficult for the user to feel the presence of the engagement hook 111 having a sharp impression, and the foreign matter feeling of the hook sheet 110 can be further reduced. Further, by setting the light transmittance from the front end side of the engagement hook 111 of the hook sheet 110 to the base sheet 120 side to be 60% to 85%, the foreign matter feeling of the hook sheet 110 can be further reduced.
- the fastening tape 100 has a shape in which the width in the longitudinal direction DL becomes narrower from the base end portion 100b toward the free end portion 100f, and the corner portion of the free end portion 100f has a round shape.
- the width of the fastening tape 100 is narrower than before. For this reason, it becomes easier to follow the shape of the wearer's underfoot heel and the body shape of the infant who is likely to protrude the abdomen, and the free end 100f (gripping part) of the fastening tape 100 hits the skin and is uncomfortable. Can be prevented, and a sense of security can be nurtured.
- the outer surface of the base sheet 120 which is the surface opposite to the surface on which the hook sheet 110 is provided, and the outer surface of the absorbent main body 15 are substantially the same pattern (embossed portion 80).
- the outer surface of the base sheet 120 and the surface of the back sheet 70 may be constituted by a nonwoven fabric composed of the same emboss pattern and fiber type.
- the fastening tape 100 is a structure integrated with the disposable diaper 10, and the user of the disposable diaper 10 can recognize that it is not a different part.
- the outermost sheet (back sheet 70) of the disposable diaper is a part that is frequently touched when the user (for example, the infant's mother) wears the disposable diaper on the infant, so that it gives a soft touch. A sheet is used.
- the base sheet 120 is formed of two or more layers of non-woven fabric, and the non-woven fabric is bonded in a mesh pattern using an adhesive of 2 g / m 2 to 8 g / m 2 .
- the adhesive can be applied in a wider range with a smaller basis weight than when applied in a line shape or a planar shape, and can be firmly bonded partially, so that both bonding strength and flexibility can be achieved.
- the adhesive applied in a mesh (hot melt) ) Is not preferable because the wire diameter becomes thicker and hardness due to bonding occurs.
- the embossed portion 80 is formed on the outer surface of the base sheet 120 that is the surface opposite to the surface on which the hook sheet 110 is provided, and the outer surface of the absorbent main body 15.
- the outer side surface of the base sheet 120 and the outer side surface of the absorbent main body 15 had substantially the same pattern, but such a process does not necessarily have to be performed. .
- the disposable diaper 10 can be suitably used for infants, but the scope of the present invention is not limited to disposable diapers for infants, for example, for pediatrics and adults. Of course, it can also be applied to disposable diapers.
- an open type disposable diaper has been described as an example, but the present invention is also applicable to a pants type (reclosable type) in which a front waistline portion and a rear waistline portion are detachably joined. obtain.
- a fastening element corresponding to a fastening tape of a disposable diaper is provided at one joint portion (side portion) of the front waistline portion and the rear waistline portion, and the present invention is applied to a disposable diaper in which the side portion is removable. May be.
- the disposable diaper which can give the impression which has sufficient engagement force can be provided, reducing the feeling of a fastening tape, and the discomfort of appearance substantially.
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Abstract
Description
図1は、本実施形態に係る使い捨ておむつ10の平面図である。図1に示すように、使い捨ておむつ10は、前胴回り部20、股下部30及び後胴回り部40を有するオープンタイプである。使い捨ておむつ10は、特に乳幼児用として好適に用いることができる。
次に、図2~図4を参照して、ファスニングテープ100の形状について説明する。図2は、使い捨ておむつ10のファスニングテープ100部分(サイドフラップ50側)の拡大図である。図3は、使い捨ておむつ10のファスニングテープ100部分(バックシート70側)の拡大図である。図4は、図2に示したF4-F4線に沿った使い捨ておむつ10の断面図である。
次に、ファスニングテープ100のKES曲げ剛性値について説明する。なお、KES曲げ剛性値の具体的な測定方法については、後述する。
次に、本発明の実施例について説明する。表1は、実施例1~実施例6に係るファスニングテープと、比較例1~比較例3に係るファスニングテープ(以下、単に実施例及び比較例と適宜省略する)の構成及び試験結果の概略を示す。
市販のユニ・チャーム株式会社製の「ムーニー ねんね仕立て Sサイズ」を用い、ファスニングテープ、ファスニングテープが固定されているサイドフラップ部分及びバックシート部分含む領域を、ファスニングテープとサイドフラップとが固定されている部位の幅方向DW内側20mm位置から差し替えることによって、試験サンプルを準備した。
(2)オムツ本体のシートとほぼ同じような触感
(3)どちらとも言えない
(4)オムツ本体のシートとやや異なる触感
(5)オムツ本体のシートと異なる触感
なお、フックシート110及び基材シート120の合計厚みは、上述した厚み計(テスター産業株式会社製の厚み計)を用いて測定した。
ファスニングテープの曲げ特性については、カトーテック株式会社製のKES曲げ測定機を用いて測定した。具体的には、B値(曲げ剛性)値を測定した。
使い捨ておむつの交換時にファスニングテープの係合フックを視認したことを想定し、30~50cm範囲の離れた位置からサンプルを視認してもらい、係合フックに「鋭利な印象、固そうな印象を感じるか」を確認した。ヒアリングは感じる・感じないのどちらの印象にあるかを確認した。感じないとした人数が70%を超えたサンプルをOKとした。表2は、当該試験結果を示す。
フックシート110(フックシート存在域SHS)のL*、a*及びb*の値、フックシート110に隣接する基材シート120(隣接領域SB)、及びサイドフラップ50のL*、a*及びb*の値を測定した。
白色標準プレート上に、基材シート120(フックシート110取付面を上にする)、フックシート110(係合フック111側を上にする)の順に配置した。フックシート110のサイズは、基材シート120のサイズよりも小さく、基材シート120のみが存在する位置(隣接領域SB)におけるL*, a*, b*の値を測定した。さらに、フックシート110及び基材シート120が重なって存在する位置(フックシート存在域SHS)におけるL*, a*, b*の値を測定した。同様に、白色標準プレート上に、サイドフラップ50のバックシート70側を下にして配置し、サイドフラップ50におけるL*, a*, b*の値を測定した。
(2)やや目立つ
(3)どちらとも言えない
(4)あまり目立たない
(5)まったく目立たない
(5)作用・効果
使い捨ておむつ10によれば、フックシート存在域SHSの長手方向DLにおけるKES曲げ剛性値、及び幅方向DWにおけるKES曲げ剛性値は、1.64gf・cm2/cm以下である。また、係合フック111の高さは、60~200μmである。さらに、フックシート存在域SHSとサイドフラップ50のサイドフラップ領域SSFとの色差ΔEは、6.5以上である。
上述したように、本発明の実施形態を通じて本発明の内容を開示したが、この開示の一部をなす論述及び図面は、本発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施の形態、実施例及び運用技術が明らかとなる。
Claims (8)
- 前胴回り部、後胴回り部及び股下部とから構成され、液保持性の吸収体を含む縦長の吸収性本体と、
前記吸収性本体の幅方向における側縁部の少なくとも一部に設けられるサイドフラップと、
前記サイドフラップに取り付けられ、前記前胴回り部または前記後胴回り部の一方から前記吸収性本体の幅方向外側に延出し、前記前胴回り部または前記後胴回り部の他方に止着されるように構成されたファスニングテープと
を備える使い捨ておむつであって、
前記ファスニングテープは、基材シートと、複数の係合フックが設けられたフックシートとを有し、
前記ファスニングテープが設けられているファスニングテープ存在域のうち、前記フックシートが設けられているフックシート存在域の前記吸収性本体の長手方向における単位長さ当たりのKES曲げ剛性値、及び前記吸収性本体の幅方向における単位長さ当たりのKES曲げ剛性値は、1.64gf・cm2/cm以下であり、
前記係合フックの高さは、60~200μmであり、
前記ファスニングテープの内面側の前記フックシート存在域と、前記ファスニングテープに隣接する前記サイドフラップとの色差ΔEは、L*a*b*表色系において、L*の色差をΔL*、a*の色差をΔa*、及びb*の色差をΔb*とした場合、6.5以上である使い捨ておむつ。 - 前記基材シートは、2枚以上のシートによって形成され、
前記基材シートそれぞれの目付けは、10~60g/m2である請求項1に記載の使い捨ておむつ。 - 前記基材シートは、熱エンボスが施された熱エンボス領域を有し、
前記熱エンボス領域の光線透過率は、前記熱エンボスが施されていない非エンボス領域の光線透過率と異なっており、
前記熱エンボス領域は、前記ファスニングテープのフックシート存在域側から視認可能であり、
前記係合フックの上端部の大きさは、前記熱エンボス領域のサイズよりも小さい請求項1または2に記載の使い捨ておむつ。 - 前記フックシートにおける前記係合フックの先端側から前記基材シート側への光線透過率は、60%~85%である請求項1乃至3の何れか一項に記載の使い捨ておむつ。
- 前記ファスニングテープは、前記サイドフラップに取り付けられる基端部から前記基端部と反対側に位置する自由端部に向かうに連れて、前記吸収性本体の長手方向における幅が狭くなる形状を有し、
前記自由端部の角の部分は、丸い形状を有し、
前記フックシート存在域の前記吸収性本体の長手方向における幅は、30~50mmであり、
前記フックシート存在域の前記吸収性本体の幅方向における幅は、20~40mmである請求項1乃至4の何れか一項に記載の使い捨ておむつ。 - 前記フックシートが設けられている面と反対側の面である前記基材シートの外側面と、前記吸収性本体の外側面とは、実質的に同一の模様または色彩を有する請求項1乃至5の何れか一項に記載の使い捨ておむつ。
- 前記フックシートが設けられている面と反対側の面である前記基材シートの外側面と、前記吸収性本体の外側面とは、同一のエンボスパターンと繊維種からなる不織布によって構成される請求項1乃至6の何れか一項に記載の使い捨ておむつ。
- 前記基材シートは、2層以上の不織布によって形成され、
前記不織布は、2g/m2~8g/m2の接着剤を用いて網目状のパターンにて接合されている請求項1乃至7の何れか一項に記載の使い捨ておむつ。
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KR1020147024375A KR102011168B1 (ko) | 2012-02-01 | 2013-02-01 | 일회용 기저귀 |
US14/375,590 US9561140B2 (en) | 2012-02-01 | 2013-02-01 | Disposable diaper |
CN201380007797.1A CN104093387B (zh) | 2012-02-01 | 2013-02-01 | 一次性尿布 |
EA201400814A EA027051B1 (ru) | 2012-02-01 | 2013-02-01 | Одноразовый подгузник |
EP13743638.2A EP2810631B1 (en) | 2012-02-01 | 2013-02-01 | Disposable diaper |
AU2013215900A AU2013215900B2 (en) | 2012-02-01 | 2013-02-01 | Disposable diaper |
BR112014017621A BR112014017621A8 (pt) | 2012-02-01 | 2013-02-01 | Fralda descartável |
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JP2012020378A JP5859862B2 (ja) | 2012-02-01 | 2012-02-01 | 使い捨ておむつ |
JP2012-020378 | 2012-02-01 |
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EP (1) | EP2810631B1 (ja) |
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KR (1) | KR102011168B1 (ja) |
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JP6043054B2 (ja) | 2011-08-26 | 2016-12-14 | ユニ・チャーム株式会社 | 使い捨ておむつ |
JP5291215B1 (ja) | 2012-03-30 | 2013-09-18 | ユニ・チャーム株式会社 | 使い捨ておむつ |
JP5291237B1 (ja) * | 2012-11-27 | 2013-09-18 | ユニ・チャーム株式会社 | 使い捨ておむつ |
CN104994823A (zh) * | 2013-02-15 | 2015-10-21 | 宝洁公司 | 与吸收制品一起使用的扣紧系统 |
US9480611B2 (en) | 2013-07-29 | 2016-11-01 | Kimberly-Clark Worldwide, Inc. | Absorbent article having a fastening system |
US20150032078A1 (en) * | 2013-07-29 | 2015-01-29 | Kimberly-Clark Worldwide, Inc. | Absorbent article having a fastening system with a visual cue |
US9597237B2 (en) | 2013-12-31 | 2017-03-21 | Kimberly-Clark Worldwide, Inc | Absorbent article having a fastening system |
US9980859B2 (en) | 2014-01-31 | 2018-05-29 | Kimberly-Clark Worldwide, Inc. | Absorbent article having a fastening system with improved flexibility |
WO2016069269A1 (en) | 2014-10-31 | 2016-05-06 | Kimberly-Clark Worldwide, Inc. | Absorbent article having a protected fastening system |
USD839418S1 (en) * | 2017-06-30 | 2019-01-29 | Carears Designer Diapers, LLC | Diaper |
JP7163754B2 (ja) * | 2018-12-14 | 2022-11-01 | 王子ホールディングス株式会社 | 吸収性物品 |
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BR112014017621A8 (pt) | 2017-07-11 |
AR089870A1 (es) | 2014-09-24 |
TW201345505A (zh) | 2013-11-16 |
CN104093387B (zh) | 2016-07-06 |
TWI565454B (zh) | 2017-01-11 |
JP5859862B2 (ja) | 2016-02-16 |
EA027051B1 (ru) | 2017-06-30 |
EA201400814A1 (ru) | 2014-11-28 |
EP2810631A4 (en) | 2015-10-07 |
JP2013158371A (ja) | 2013-08-19 |
CN104093387A (zh) | 2014-10-08 |
EP2810631A1 (en) | 2014-12-10 |
BR112014017621A2 (ja) | 2017-06-20 |
US20150025491A1 (en) | 2015-01-22 |
KR20140117673A (ko) | 2014-10-07 |
US9561140B2 (en) | 2017-02-07 |
AU2013215900B2 (en) | 2016-09-22 |
AU2013215900A1 (en) | 2014-07-31 |
EP2810631B1 (en) | 2016-06-15 |
MY166103A (en) | 2018-05-24 |
KR102011168B1 (ko) | 2019-08-14 |
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