Abstract: The present invention provides a production method for an underpants-type disposable diaper in space-saving and simple facilities while reducing the risk of occurrence of wrinkles, including: supplying a continuous sheet material in the continuous direction thereof; disposing resilient and elastic members for imparting elasticity to a ventral side outer body and a dorsal side outer body at a CD direction intermediate portion of the sheet material; folding CD direction one side and other side parts across the CD direction intermediate portion toward the side of the CD direction intermediate portion with the resilient and elastic members, sandwiching and fixing the resilient and elastic members in the folded sheet material, and joining together the folded parts and the CD direction intermediate portion to form a continuous elastic belt; cutting the elastic belt at a CD direction intermediate position to obtain a dorsal side elastic belt and a ventral side elastic belt, and then assembling an inner body to the d

Abstract: To obtain a wide stretching range in a waist stretching sheet, a tape-type disposable diaper has a main body including a waist stretching sheet and a fastening tape on a dorsal side portion B. The main body has a folded-back portion in which a side including a portion having a non-stretchable region of the waist stretching sheet is folded back to a center side and fixed.

Abstract: An underpants-type disposable diaper has outer members that separately or integrally configures a front body and a back body. An inner member is attached to the outer members from the front body to the back body. The outer members have a waist extended section that extends to a side of the waist opening of an edge of the inner member on a waist side. The underpants-type disposable diaper further has a display sheet containing a liquid impervious resin film on an outer side of the inner member in a region in which the outer members and the inner member overlap with each other in at least one of the front body and the back body, in which the display sheet extends from a region overlapping the inner member into the waist extended section.

Abstract: A pneumatic tire includes a carcass, a tread portion and a belt layer having a first inclined belt ply, circumferential direction belt ply, and second inclined belt ply. Ground contact edge side belt plies extend from tire width direction end portions of the second inclined belt ply toward tire width direction outsides, at a tire radial direction outside of the carcass. With respect to a tire circumferential direction, an angle of cords of the first inclined belt ply is from 45° to 60°, an angle of a cord of the circumferential direction belt ply is 5° or less, an angle of cords of the second inclined belt ply is from 30° to 60°, and an angle of cords of the ground contact edge side belt plies exceeds 5° and is 30° or less. A distance dimension of the ground contact edge side belt plies is 80% or more of a ground contact width.

Abstract: The present invention provides an underpants-type disposable diaper that has pleats formed in an outer body, which vertically and straightly extend, is excellent in appearance and air permeability, and is excellent in drawing preventing performance of a resilient and elastic member.

Abstract: An underpants-type disposable diaper separately has a front side outer member and a back side outer member, the front side outer member and the back side outer member being spaced apart in a front-back direction in a middle in the front-back direction The back side outer member has a gluteal cover portion extending to a center side of the side seal portions in the front-back direction, and a front-back direction dimension of a side edge of the gluteal cover portion is 0.9 to 1.1 times a width direction dimension from a side edge of the back side outer member to a side edge of a center side of the side seal portions in the width direction.

Abstract: A main object of the present invention is to improve the fit of edge portions of an outer body around the legs.

Abstract: A stretchable structure for absorbent article includes: a sheet-like member (12S) that is composed of one air permeable material (120) and has a plurality of pleats (80) arranged at intervals so as not to overlap in a fallen state and inter-pleat portions (85) overlapping in the state in which the pleats (80) are fallen; and elongated resilient and elastic members (90) provided between opposing surfaces (80a and 80b) of the pleats (80) along a longitudinal direction of the pleats (80). The pleats (80) are continuously or intermittently joined in the longitudinal direction of the pleats (80) such that at least the opposing surfaces (80a and 80b) of base portions (81) are not spaced from each other. Outer surfaces of the pleats (80) are not joined to the inter-pleat portions (85) except for both longitudinal ends of the pleats (80).

Abstract: To enable producing without the need for an extension step of an outer body while being excellent in a fit of the edges around the legs. The above problem is solved by an underpants-type disposable diaper wherein an inner body is joined to a crotch side edge portion of a central portion in a width direction of a dorsal side outer body to form an inner body joined section, a front-back length of a side closer to a waist side than the inner body joined section is extensible to a crotch side, and the side closer to the waist side than the inner body joined section in the inner body can be moved to the crotch side, relative to a dorsal side outer body.

Abstract: A stretchable structure is provided with an elastic member provided between a first sheet layer and a second sheet layer. A stretchable region and a non-stretchable region are alternatively repeated three or more regions from end to end in the stretching direction of the stretchable structure. Both ends are the stretchable region. Both of the ends have an adhesive region of a hot melt adhesive, where the elastic member is adhered to the first sheet layer and the second sheet layer, in a spread state, intervals between adhesive regions adjacent in the stretching direction are all the same, twice of a stretching direction length of the adhesive region positioned on both ends in the stretching direction of the stretchable structure and a stretching direction length of the adhesive region positioned at an end portion on the non-stretchable region side of the stretchable region are all the same.

Abstract: An image conversion unit according to an embodiment includes a gradation unit, a black line extraction unit, and a white line extraction unit. The gradation unit classifies a pixel of a pre-conversion image as one of four levels based on a brightness of the pixel, and expresses, in a color corresponding to the level as which the pixel has been classified, a corresponding pixel of a converted image. The black line extraction unit extracts pixels of an outline of an object in the pre-conversion image, and expresses corresponding pixels of the converted image in black. The white line extraction unit extracts pixels adjacent to an outline of an object in the pre-conversion image, and expresses corresponding pixels of the converted image in white.

Abstract: An underpants-type disposable diaper has a display sheet containing a resin film between an inner member and at least one of a front side outer member and a back side outer member. A cover nonwoven fabric is provided with a plurality of holes having intervals and penetrating a front and a back is interposed from at least a crotch side edge of an outer member overlapping the display sheet to a side of a waist opening between the display sheet and a liquid impervious sheet. An internal surface and an external surface of the cover nonwoven fabric are bonded to facing surfaces, respectively, through a hot melt adhesive. Compatibility between prevention of deterioration of appearance of the display sheet and prevention of a decrease in air permeability is achieved.

Abstract: A cover nonwoven fabric covers a back surface of an inner member from between a front side outer member and the inner member to between a back side outer member and the inner member. In this cover nonwoven fabric, a large number of holes are provided at intervals. The holes penetrate the front surface and back surface from between the front side outer member and the inner member to between the back side outer member and the inner member. The front side outer member and the back side outer member have, at least at portions overlapping with the cover nonwoven fabric and not having any elastic member, a total luminous transmittance of 50% or more.

Abstract: An absorbent article includes an absorber having a front surface side sheet, a back surface side sheet disposed on the back surface side of the front surface side sheet, cells each of which is surrounded by bonded portions of the front surface side sheet and the back surface side sheet and inside each of which the front surface side sheet and the back surface side sheet are not bonded, and particulate materials which include superabsorbent polymer particles and which are contained in each of the cells. The bonded portions are arranged in continuous line shapes or dotted line shapes so as to form same-sized regular hexagons, which connect each other as unit shapes to be a honeycomb shape. All the cells are the same-sized regular hexagonal cells each of which is surrounded by the bonded portions.

Abstract: An absorbent article includes an absorber including cells, each of which is surrounded by bonded portions of a front surface side sheet and a back surface side sheet and in each of which the front surface side sheet and the back surface side seat are not bonded, and including superabsorbent polymer particles contained in each of the cells. The bonded portions are arranged in dotted line shapes according to a pattern in which same-sized octagonal portions having all interior angles of 135°, and having two pairs of opposite sides whose facing directions are mutually orthogonal are equal in length, and diamond-shaped portions each having equal length of all sides and being formed in portions among the octagonal portions, are arranged without any space in the front-back direction (LD) or the width direction (WD).

Abstract: An absorbent article includes an absorbent element obtained by wrapping an absorbent body in a wrapping sheet, wherein the absorbent body is obtained by mixing and accumulating fibers and high absorbent polymer particles and includes an impregnation layer impregnated with a hot melt adhesive having melt viscosity of 1,000 to 6,000 mPa·s on at least one side of a front face side and a back face side thereof. A part of an internal surface of the wrapping sheet facing the impregnation layer is bonded to an external surface of the impregnation layer through an adhesive layer made of a hot melt adhesive having melt viscosity within a range of 4,000 to 9,000 mPa·s and having higher melt viscosity than melt viscosity of the hot melt adhesive impregnated into the impregnation layer.

Abstract: An absorbent article includes an absorbent element obtained by wrapping an absorbent body in a wrapping sheet. The wrapping sheet includes an intermediate part located on one side of a front side and a back side of the absorbent body and both side parts folded back to the other side of the absorbent body from the intermediate part. The both side parts are overlapped with each other on the other side of the absorbent body. An overlapped part is bonded through a hot melt adhesive to form a connecting portion. A surface of the absorbent body on a side of the connecting portion is bonded to an internal surface of the wrapping sheet through hot melt adhesives, and the connecting portion of the wrapping sheet extends in a width direction to extend over both widthwise sides of a slit provided in the absorbent body.

Abstract: A tire 1 includes plural land portions 40 formed on a tread portion 10. The plural land portions 40 are segmented by a circumferential direction groove 30 extending in a tire circumferential direction L and a width direction groove 20, or segmented by an end portion 10E of the tread portion 10 in the tire width direction W and the width direction groove 20. A length of the width direction groove 20 in the tire width direction W is not less than 30% of a length of the tread portion 10 in the tire width direction W. The width direction groove 20 has at least one angled portion 50A/50B configured to be bent toward an opposite direction to a tire rotational direction R on at least one side of a tire equator line CL.

Abstract: A stretchable structure of an absorbent article includes two sheet layers that extend in a stretchable direction and an orthogonal direction orthogonal to the stretchable direction; and elongated resilient and elastic members that are disposed between the sheet layers at predetermined intervals in the orthogonal direction and extend in the stretchable direction, wherein, the two ends in the stretchable direction of each of the resilient and elastic members comprise fixed ends fixed to the two sheet layers, and the section between the fixed ends comprises a free section unfixed to the two sheet layers, at least one sheet bonding section is disposed in at least one inter-free region defined between the free sections adjacent to each other in the orthogonal direction, the two sheet layers being bonded in the at least one inter-free region, and the two sheet layers in a contracted state conform with each other in a wave pattern in response to contraction of the resilient and elastic members.

Abstract: A first belt layer includes a cord extending at an inclination angle of greater than 45° with respect to the tire circumferential direction, a second belt layer includes a cord extending in the tire circumferential direction, and a third belt layer includes a cord extending at an inclination angle of 30° or less in the opposite direction from the cord of the first belt layer with respect to the tire circumferential direction. The belt layers are arranged in order, with the first belt layer furthest inward in the tire radial direction, on the outer circumferential side of a crown region of a carcass extending toroidally between a pair of bead portions. The third belt layer width w3 is 80% or more of the tread width w, and w2<w1<w3, where w1 is the first belt layer width, and w2 is the second belt layer width.