WO2016157490A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2016157490A1
WO2016157490A1 PCT/JP2015/060431 JP2015060431W WO2016157490A1 WO 2016157490 A1 WO2016157490 A1 WO 2016157490A1 JP 2015060431 W JP2015060431 W JP 2015060431W WO 2016157490 A1 WO2016157490 A1 WO 2016157490A1
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WO
WIPO (PCT)
Prior art keywords
absorbent
skin side
longitudinal direction
sheet
color
Prior art date
Application number
PCT/JP2015/060431
Other languages
English (en)
Japanese (ja)
Inventor
敬智 向井
Original Assignee
ユニ・チャーム株式会社
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Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Publication of WO2016157490A1 publication Critical patent/WO2016157490A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs

Definitions

  • the present invention relates to an absorbent article for absorbing urine, such as disposable diapers.
  • the three-piece-type pants-type disposable diaper as shown to patent document 1 is known as an absorbent article which absorbs urine.
  • a diaper has an absorbent main body applied as a first part to the crotch of a person to be worn to absorb urine, and has a ventral side band member covering a belly side of the person to be worn as a second part, As a third part, it has a dorsal band member that covers the dorsal side of the person to be worn. Then, while the absorbent main body is folded in half at a predetermined position in the longitudinal direction, each lateral end of the ventral-side band member and each lateral end of the back-side band member are connected.
  • the diaper is used as a pant-type diaper having one waist opening and two leg openings.
  • printing characters such as "front side” and "back side” on the non-skin side of the diaper can be mentioned. And if it does in this way, when the worker and wearing object person of diaper exchange see a diaper from the non-skin side, the belly side and the back side of a diaper can be identified easily, and a wearing object person gets a diaper We can prevent putting on the back front.
  • the present invention has been made in view of the conventional problems as described above, and the purpose thereof is that the ventral side and the back side of the absorbent article when workers etc. see the absorbent article from the skin side. And easily distinguishable.
  • the main invention to achieve the above object is An absorbent article having a longitudinal direction, a transverse direction and a thickness direction orthogonal to each other, An absorbent body which is folded in half at a predetermined position in the longitudinal direction and disposed along the longitudinal direction in the longitudinal direction; A ventral-side band member provided along the lateral direction and fixed to one end of the absorbent body in the longitudinal direction from the non-skin side in the thickness direction; A dorsal band member provided along the lateral direction as a separate member from the ventral band member, and fixed to the other end of the absorbent main body in the longitudinal direction from the non-skin side in the thickness direction;
  • One waist opening and two leg openings are formed by connecting the respective lateral ends of the ventral band members with the respective lateral ends of the dorsal band member.
  • the absorbent main body includes an absorbent core having a liquid absorbent material, a skin-side sheet provided by covering the absorbent core from the skin side in the thickness direction, and the absorbent core in the thickness direction.
  • the non-skin side sheet provided covering from the non-skin side of the At least one elastic member of the elastic member for applying the contraction force in the lateral direction to the dorsal band member has an inclined portion which is inclined from the lateral direction
  • the non-skin side sheet has a color difference area different in color from the absorbent core
  • the color-difference region is a portion of the absorbent core that protrudes in the longitudinal direction or the lateral direction on the one end side in the longitudinal direction and the absorbent core on the other end side of the longitudinal direction.
  • the absorbent article is characterized in that the shape of the protruding portion on the one end side of the color difference area is different from the shape of the protruding portion on the other end side.
  • the present invention when the worker etc. see the absorbent article from the skin side, it becomes possible to easily distinguish between the ventral side and the dorsal side of the absorbent article.
  • FIG. 8A is a schematic plan view of the diaper 1 of the first modification viewed from the skin side
  • FIG. 8B is a cross-sectional view taken along the line BB in FIG. 8A. It is the outline top view which looked at diaper 1 of the 2nd modification from the skin side.
  • An absorbent article having a longitudinal direction, a transverse direction and a thickness direction orthogonal to each other, An absorbent body which is folded in half at a predetermined position in the longitudinal direction and disposed along the longitudinal direction in the longitudinal direction; A ventral-side band member provided along the lateral direction and fixed to one end of the absorbent body in the longitudinal direction from the non-skin side in the thickness direction; A dorsal band member provided along the lateral direction as a separate member from the ventral band member, and fixed to the other end of the absorbent main body in the longitudinal direction from the non-skin side in the thickness direction;
  • One waist opening and two leg openings are formed by connecting the respective lateral ends of the ventral band members with the respective lateral ends of the dorsal band member.
  • the absorbent main body includes an absorbent core having a liquid absorbent material, a skin-side sheet provided by covering the absorbent core from the skin side in the thickness direction, and the absorbent core in the thickness direction.
  • the non-skin side sheet provided covering from the non-skin side of the At least one elastic member of the elastic member for applying the contraction force in the lateral direction to the dorsal band member has an inclined portion which is inclined from the lateral direction
  • the non-skin side sheet has a color difference area different in color from the absorbent core
  • the color-difference region is a portion of the absorbent core that protrudes in the longitudinal direction or the lateral direction on the one end side in the longitudinal direction and the absorbent core on the other end side of the longitudinal direction.
  • the absorbent article is characterized in that the shape of the protruding portion on the one end side of the color difference area is different from the shape of the protruding portion on the other end side.
  • the absorbent main body when the absorbent main body is viewed from the skin side, the shapes of the portion protruding on the ventral side and the portion protruding on the dorsal side of the color difference area are different from each other . Therefore, the worker of the absorbent article exchange who saw the color difference area or the person to be worn can easily distinguish between the ventral side and the dorsal side of the absorbent article based on the above-mentioned difference in shape. Further, the area in which one end of the absorbent main body overlaps the ventral-side band member is different from the area in which the other end of the absorbent main body overlaps with the dorsal-side band member. Therefore, if these areas are viewed from the skin side, workers and the like can easily distinguish between the ventral side and the dorsal side based on the difference in the areas.
  • Such an absorbent article When the absorbent article is viewed from the side of the ventral side band member in the thickness direction, a part of the dorsal side band member protrudes in the longitudinal direction more than a portion which becomes the leg-surrounding opening in the ventral side band member Yes, It is desirable that the inclined portion of the elastic member be located in the part.
  • the part of the dorsal side band member protrudes in the longitudinal direction more than the portion which becomes the leg-surrounding opening in the ventral side band member. Therefore, it is possible to intuitively sense that the band member having the part is the part that should cover the buttocks, thereby correctly recognizing that this band member is the back band member. can do.
  • the inclined portion of the elastic member is present in the part, a contraction force is applied not only in the lateral direction but also in the longitudinal direction, whereby the part in the lateral direction and the longitudinal direction It shrinks in both directions, and a large wrinkle is formed. Therefore, the said part is in the state which stood out compared with the other part, and, thereby, it becomes easy for an operator etc. to see.
  • the absorbent main body At a position between the one end and the other end in the longitudinal direction, the absorbent main body has a portion that does not overlap with either the ventral band member or the dorsal band member, The color difference area of the non-skin side sheet is also present in the non-overlapping portion, When the absorbent article is viewed from the non-skin side in the thickness direction, the one end and the other end of the absorbent main body show the ventral side belt member and the back side belt member, respectively.
  • a light color area in which the color of the color difference area looks lighter than that of the non-overlapping part by being visually recognized as a shape, and the non-overlapping part is a color of the color difference area than the light color area Form a dark area where the When the absorbent article is viewed from the skin side in the thickness direction, it is preferable that the light color region and the dark color region do not exist on the skin side in the thickness direction of the absorbent main body. .
  • this side is the non-skin side of the absorbent article by looking at the light color area and the dark area in the absorbent main body. it can.
  • the elastic member having the inclined portion is provided straddling the absorbent main body in the lateral direction,
  • the inclined portion is provided so as to be visible from the skin side in the thickness direction by providing the inclined portion at each end in the lateral direction not overlapping the absorbent main body in the back side belt member Yes, It is preferable that the inclined portion is displaced inward in the longitudinal direction so as to approach the boundary position between the light color area and the dark area as it goes inward in the lateral direction.
  • the elastic member has the inclined portion and has a characteristic shape.
  • the worker or the like can easily pay attention to the elastic member.
  • the same worker etc. can recognize rapidly that the belt member of the one in which the inclined part concerned is located is a back side belt member by visually recognizing the inclined part of the elastic member concerned from the skin side. Therefore, a worker etc. can distinguish the ventral side and the back side of an absorptive article easily.
  • the inclined portion is displaced inward in the longitudinal direction so as to approach the boundary position between the light color region and the dark color region as it goes inward in the lateral direction.
  • the inclined portion becomes noticeable based on the light color region and the dark color region in the vicinity thereof, and as a result, the inclined portion becomes easy for the operator or the like to see. Furthermore, according to the above configuration, discrimination between the skin side and the non-skin side of the absorbent article can be easily performed. That is, since the elastic member having the inclined portion provided on the back side belt member is located on the non-skin side in the thickness direction than the absorbent main body, the elastic member having the inclined portion is the absorbent main body The side that appears to overlap is the non-skin side of the absorbent article, and the side where the elastic member is hidden behind the absorbent main body and is less visible is the skin side of the absorbent article. Therefore, a worker etc. can easily distinguish between the skin side and the non-skin side of the absorbent article.
  • the belly band member has an elastic member for applying the contraction force in the lateral direction to the belly band member,
  • the elastic member does not have an elastic member having an inclined portion which is inclined from the lateral direction.
  • the elastic member having the above-mentioned inclined portion is not provided on the ventral-side belt member, and the elastic member having the inclined portion is provided only on the back-side belt member There is. Therefore, based on the presence or absence of the elastic member having the inclined portion, the worker or the like can easily distinguish between the ventral side and the dorsal side of the absorbent article.
  • Such an absorbent article In the absorbent body having the absorbent core and a core wrap sheet for covering the outer peripheral surface of the absorbent core, a pressing portion formed by pressing in the thickness direction is formed in a predetermined pattern, Among the skin side sheets, a liquid-permeable top sheet provided on the skin side in the thickness direction with respect to the core wrap sheet has the same color as the absorbent body, It is desirable that the color difference area of the non-skin side sheet is also present in a portion of the absorbent main body that does not overlap the band member, and the color difference area is also different in color from the absorber.
  • the skin side and the non-skin side of the absorbent article can be easily identified. That is, since the skin side sheet has the same color as the absorbent body, the visibility of the compressed portion of the absorbent body in the form of being transparent to the skin side sheet is not bad, while the above color of the non-skin side sheet Since the difference area is different from the absorber in color, the visibility of the pressed portion in the form of being transparent to the non-skin sheet is poor. Therefore, based on the difference in visibility, the worker or the like can quickly identify the skin side and the non-skin side of the absorbent article.
  • Such an absorbent article It has a first sheet that covers the edge from the skin side in the thickness direction while straddling the edge along the lateral direction of the one end of the absorbent main body in the longitudinal direction, and The color difference area can be visually recognized in the form of the first sheet through water, And a second sheet covering the edge from the skin side in the thickness direction while straddling the edge along the lateral direction of the other end of the absorbent main body in the longitudinal direction, and The color difference area can be visually recognized in the form of the second sheet,
  • the maximum value of the length in the longitudinal direction, in which the first sheet covers the portion protruding from the absorbent core in the color difference region, and the portion protruding from the absorbent core in the color difference region It is desirable that the maximum value of the longitudinal length covered by the second sheet be different.
  • the maximum value of the length in the longitudinal direction in which the first sheet covers the projecting portion, and the maximum value of the length in the longitudinal direction covering the projecting portion of the second sheet are different from each other.
  • the part covered with the first sheet or the second sheet in the protruding part looks thinner than the part not covered. Therefore, when the absorbent article is viewed from the skin side, the maximum value of the length in the longitudinal direction of the part that looks thin through the first sheet in the color difference area and the second sheet in the color difference area
  • the maximum value of the length in the longitudinal direction of the part that looks thin and thin is viewed differently from each other, and based on the difference in the maximum value of the length, the worker etc. When viewed from the side, it is possible to quickly distinguish the ventral side from the dorsal side.
  • the absorbent core is a molded product obtained by molding the liquid absorbent material containing a pulp fiber having a basis weight of 100 (g / m 2 ) to 800 (g / m 2 ) into a predetermined shape, It is desirable that the color difference area be different from the color of the molded body.
  • a molded article obtained by forming a liquid absorbent material containing pulp fibers having the above-mentioned basis weight into a predetermined shape is used as an absorbent core, and the above-mentioned color difference area is an absorbent core.
  • the color and color of the molded body are different. Therefore, it becomes easy to visually recognize the part which protruded in the longitudinal direction or the horizontal direction from the absorptive core in a color different area
  • FIG. 1 is a schematic front view of a three-piece type pants-type disposable diaper 1 as an example of the absorbent article of the present embodiment as viewed from the ventral side.
  • FIG. 2 is a schematic plan view of the unfolded diaper 1 viewed from the skin side
  • FIG. 3 is a schematic plan view of the diaper 1 viewed from the non-skin side.
  • 4A and 4B are respectively a cross-sectional view taken along the line AA and a cross-sectional view taken along the line BB in FIG. 2
  • FIG. 5 is a cross-sectional view taken along the line VV in FIG.
  • This diaper 1 has a longitudinal direction, a lateral direction, and a thickness direction (in FIG. 1, a direction passing through the paper surface) as three directions orthogonal to each other in the pants-type state of FIG.
  • the diaper 1 is a so-called three-piece type, in the unfolded state of FIG. 2, the diaper 1 has an absorbent main body 10 applied to the crotch of a person to be worn as a first part to absorb urine. As a component, it has a belly band member 30a that covers the belly side of the person to be worn, and a back band member 30b that covers the back side of the person to be worn as a third component.
  • the absorbent main body 10 is stretched between the both sides 30a, 30b, The longitudinal ends 10ea and 10eb of the main body 10 are joined and fixed to the nearest band members 30a and 30b, respectively, and the external shape thereof is substantially H-shaped in plan view. Then, from the developed state of the substantially H shape, the absorbent main body 10 is folded in half with the predetermined position C10 in the longitudinal direction of the absorbent main body 10 (a position corresponding to the central position C1 of the diaper 1 in the longitudinal direction) as a folding position.
  • the band members 30a, 30b facing each other in this folded state are welded at the portions 30ae, 30be (that is, the respective end portions 30ae, 30be in the lateral direction) to be in contact with the flanks of the person to be worn Alternatively, when connected by bonding or the like, the band members 30a and 30b are connected in an annular manner, thereby forming the trunk opening 1HB and the pair of leg openings 1HL and 1HL as shown in FIG. It becomes diaper 1 of the other pants type state.
  • the three component parts 10, 30a and 30b of the diaper 1 will be described mainly with reference to the diaper 1 in the unfolded state of FIGS.
  • the concept of the longitudinal direction is the same as the concept of the transverse direction and the thickness direction of the diaper 1 in the pants-type state of FIG. 1. Therefore, these are simply referred to as "lateral direction” and "thickness direction” without distinction between the unfolded state and the pants-type state.
  • the transverse direction and the direction orthogonal to the thickness direction are the same as the longitudinal direction of the absorbent main body 10.
  • this longitudinal direction is in line with the longitudinal direction of the diaper 1 of the unfolded state of the same FIG.
  • the longitudinal direction in the pants-type state of FIG. 2 it is along the longitudinal direction in the pants-type state of FIG.
  • this longitudinal direction has a slightly different meaning from the longitudinal direction in the pants-type state. Therefore, in the unfolded state, the lateral direction and the direction orthogonal to the thickness direction are hereinafter referred to as “longitudinal direction” or “diaper longitudinal direction” to be distinguished from the longitudinal direction in the pants-type state.
  • the thickness direction the side in contact with the person to be worn is also referred to as the “skin side”, and the opposite side is also referred to as the "non-skin side".
  • the absorbent main body 10 covers the absorbent body 11, the top sheet 13 provided to cover the absorbent body 11 from the skin side, and the absorbent body 11 from the non-skin side.
  • a back sheet 15 is provided, and a pair of solid gather sheets 17 for forming solid gathers 17g and 17g on both sides in the lateral direction, respectively.
  • the absorbent body 11 has a liquid absorbent absorbent core 11 c and a core wrap sheet 11 r covering the outer peripheral surface of the core 11 c.
  • the absorbent core 11c is a molded body obtained by forming a predetermined liquid absorbent material into an hourglass shape in a plan view as an example of a predetermined shape.
  • the liquid absorbent material include liquid absorbent fibers such as pulp fibers, and liquid absorbent particles such as super absorbent polymer (so-called SAP). In this example, 100 (g / m 2) is used as the same material.
  • the SAP may not be present.
  • the core wrap sheet 11r liquid permeable sheets such as tissue paper and non-woven fabric can be used. In this example, a white non-woven fabric is used, but the present invention is not limited thereto.
  • the wrap sheet 11r may be omitted.
  • the shape of the absorbent core 11c is not limited to the above-described substantially hourglass shape in plan view, but may be another shape.
  • the top sheet 13 is formed of, for example, a liquid-permeable white non-woven fabric, and is a sheet of a flat size that protrudes from both sides in the longitudinal direction and both sides in the lateral direction of the absorber 11.
  • the back sheet 15 is also a sheet having a flat size that protrudes from both sides in the longitudinal direction and both sides in the lateral direction of the absorber 11.
  • both these sheets 13 and 15 are mutually joined by adhesion, welding, etc. in the part which projected in the longitudinal direction and the transverse direction from absorber 11, and, thereby, absorber 11 is held between both sheets 13 and 15 each other It is done.
  • the non-skin side of the liquid-impermeable leak-proof sheet 15a such as a polyethylene (PE) film or a polypropylene (PP) film, and the leak-proof sheet 15a.
  • PE polyethylene
  • PP polypropylene
  • the leak-proof sheet 15a There may be mentioned a laminate sheet 15 of a two-layer structure having a non-woven fabric exterior sheet 15b laminated to one another, which is used here, provided that it has certain leakproofness, It is not limited to this at all.
  • the exterior sheet 15b forms a part of the leg gathers LG.
  • the leg gathers LG refer to the stretchable parts LG formed in the opening 1HL, 1HL of each leg of the diaper 1, as shown in FIG. 4A in order to form a part of the leg gathers LG.
  • the exterior sheet 15b protrudes largely to both sides in the lateral direction from the leak-proof sheet 15a. Then, the protruding portion 15bf is folded back inside in the lateral direction with the position corresponding to the lateral end 10es of the absorbent main body 10 as the folding position 10es, and the longitudinal portion is in the vicinity of the folding position 10es.
  • an elastic member 19 such as a rubber thread is fixed in the longitudinal direction under elongation (FIG.
  • the three-dimensional gather sheets 17, 17 are formed of, for example, a white non-woven fabric, and as shown in FIG. 2 and FIG. 4A, each end in the lateral direction of the top sheet 13 is covered from the skin side. They are provided in pairs. And each sheet
  • an elastic member 17r such as a rubber thread is fixed to a distal end portion in the lateral direction of the rising portion 17s in the longitudinal direction in a stretched state by a hot melt adhesive or the like.
  • each edge part of the longitudinal direction of the same standing parts 17s is put down in the direction of the top sheet 13, respectively, and is fixed in the said put-down state with the adhesive agent etc. There is. And thereby, the contraction force of the longitudinal direction is given to the said standing part 17s from the said elastic member 17r, As a result, the standing part 17s is contracted in the longitudinal direction, forming several wrinkles, Stand on the skin side in the longitudinal direction (FIG. 4A).
  • a suitable non-woven fabric can be exemplified as a suitable material for the three-dimensional gather sheet 17, and although an SMS (spunbond / meltblown / spunbond) non-woven fabric is used here, any material having flexibility can be used. It is not limited to this.
  • both the ventral-side band member 30 a and the back-side band member 30 b are sheet members having a substantially rectangular shape in a plan view, using a flexible sheet such as a non-woven fabric as a material.
  • the band members 30a and 30b are formed by joining the non-woven fabrics 31 and 32 in two layers, and as shown in FIG. 2, FIG. 4B and FIG.
  • the center portions 30ac and 30bc in the lateral direction of the band members 30a and 30b are overlapped and joined to the longitudinal end portions 10ea and 10eb of the absorbent main body 10 from the non-skin side.
  • the planar sizes of the two non-woven fabrics 31 and 32 may or may not be the same as each other.
  • the non-woven fabric 31 located on the non-skin side protrudes to the outside in the longitudinal direction more than the non-woven fabric 32 located on the skin side. It is folded back to the inside of the direction, and is superimposed on the non-woven fabric 32 on the skin side from the skin side.
  • the dimension in the diaper longitudinal direction of the back side strip member 30b is larger than the dimension in the diaper longitudinal direction of the ventral side strip member 30a.
  • the end edge 30be1 of the inner side in the diaper longitudinal direction of the back side band member 30b is the central position C1 of the diaper 1 in the longitudinal direction of the diaper 1 in the unfolded state, rather than the inner end edge 30ae1 of the ventral side belt member 30a. It is close to me.
  • the part 30bn which approached to this near functions as a buttock cover 30bn for covering the lower part of a person's buttocks of a wearing subject in the back side belt member 30b, and taking out underwear-likeness.
  • the buttocks cover 30bn will be described later.
  • a plurality of elastic members 35 such as thread rubber are provided along the lateral direction. , 35 are joined and fixed to the same non-woven fabrics 31 and 32 in a lateral direction while being stretched, whereby a lateral contraction force is applied to each of the band members 30a and 30b.
  • most of the elastic members 35, 35 ... are arranged in parallel in the lateral direction, but as shown in FIG. 2, with respect to some elastic members 35 (35k), at each end in the lateral direction, It has an inclined portion 35 kk which is inclined from the lateral direction.
  • each lateral end has an inclined portion 35kk, and each inclined portion 35kk extends in the diaper longitudinal direction from the outer side to the inner side. It is displaced to the inside of the direction. And thereby, contraction force is given along the above-mentioned edge part 30be1 of the curved shape of back side belt member 30b.
  • each end 30be1e in the lateral direction of the end edge 30be1 is a portion to be a part of the leg-surrounding opening 1HL, and accordingly, each end 30be1e is a plurality of the ends 30be1e based on the contraction force. It contracts in the lateral direction etc. while forming a weir, thereby functioning as a part of the leg gathers LG.
  • FIG. 6 is an explanatory view thereof, and is a schematic plan view of the unfolded diaper 1 as viewed from the skin side.
  • the configuration for example, the elastic members 17r, 19 and the like which is not significantly related to the above device is appropriately omitted.
  • the leakproof sheet 15a (corresponding to the non-skin side sheet) of the back sheet 15 is a region Ac of different color from the absorbent core 11c (hereinafter referred to as a color difference region Ac, See the hatched area and the area inside it).
  • a color difference region Ac the absorbent core 11c
  • a PE film whose material color is blue is used for the leak-proof sheet 15a, whereby As indicated by hatching in the figure, a blue color difference area Ac is formed on the entire surface of the leak-proof sheet 15a.
  • the color difference area Ac is the belly side of the longitudinal direction. While having a portion Aca (refer to the hatched portion) protruding in the longitudinal direction and the lateral direction from the absorbent core 11c (corresponding to one end side), the longitudinal back side (the other end side) Also corresponds to a portion Acb (see hatched portion) protruding in the longitudinal direction and the lateral direction from the absorbent core 11c.
  • the planar shape of the absorbent core 11c is different between the ventral portion 11ca and the dorsal portion 11cb. That is, when the central position C10s of the absorbent main body 10 in the diaper longitudinal direction is the reference position C10s, the hourglass can be used in the abdominal portion 11ca that is the portion 11ca located on the ventral side of the reference position C10s in the absorbent core 11c. While the length in the diaper longitudinal direction of the narrow portion of the shape is short, in the portion 11cb on the back side of the core 11c which is located on the back side of the reference position C10s, the diaper longitudinal direction of the narrow portion As a result, the planar shapes of the ventral portion 11 ca and the dorsal portion 11 cb are different from each other.
  • the absorbent main body 10 when the absorbent main body 10 is viewed from the skin side, the shape of the portion Aca which protrudes on the belly side of the color difference area Ac and the shape of the portion Acb which protrudes on the back side are the same as in FIG. As shown by hatching, they are visually recognized differently from each other. As a result, the diaper change worker can easily distinguish the ventral side and the dorsal side of the diaper 1 based on the difference in the shape.
  • the color of the color difference area Ac of the leakproof sheet 15a which should be different from the color of the core 11c is blue because the color of the absorbent core 11c is white derived from the color of the pulp fiber.
  • colors of white and different colors red, yellow, green, purple, yellow-red, yellow-green, blue-green, blue-purple, red-purple, black, vermilion, brown, pink, etc. may be used. It may be the color of That is, any color may be selected as long as it is different in color from the absorbent core 11c.
  • the color of a different color said here is prescribed
  • regulated for example by the common color name as described in appendix 1 of Japanese-Industrial-Standards JISZ8102: 2001. That is, in the attached Table 1, the colors having different common color names are different from each other. In addition, the colors such as red and yellow illustrated in the above are also different from each other.
  • color difference area Ac was formed in the whole surface of leak-proof sheet 15a, it is not restricted to this at all. That is, if it is possible to compare the shapes of the portions Aca and Acb protruding from the absorbent core 11c in the color difference area Ac between the ventral side and the back side, the color difference area Ac is made of the leakproof sheet 15a. It does not have to be formed on the entire surface. For example, it is not necessary to form color difference area Ac about the part which overlaps with absorptive core 11c among leak-barrier sheets 15a.
  • the formation of the color difference area Ac may not be based on the material color of the leak-proof sheet 15a.
  • a color difference area Ac may be formed by coloring a paint such as ink on the skin side or non-skin side or both sides of the leakproof sheet 15a having a white material color, or the area Ac is not a single color. It may be formed of a plurality of colors, or may be formed of a gradation of a single color, or may be formed of a pattern such as an illustration or a letter.
  • the color difference area Ac of the leak-barrier sheet 15a protrudes in both the longitudinal direction and the lateral direction from the absorbent core 11c on the ventral side and the dorsal side, respectively.
  • the present invention is not limited to this, and it may have a projecting portion in only one of the longitudinal direction and the lateral direction.
  • the color difference area Ac may have portions projecting only in the longitudinal direction from the absorbent core 11c on the ventral side and the dorsal side in the longitudinal direction, respectively, and the shapes of these projecting portions may be different from each other
  • the color difference area Ac has portions projecting only in the lateral direction from the absorbent core 11c on the ventral side and the dorsal side in the longitudinal direction, respectively, and the shapes of the projecting portions are different from each other It is good.
  • the determination as to whether or not the shapes of the protruding portions Aca and Acb are different from each other can be performed, for example, as follows. First, the diaper 1 in the unfolded state is irradiated with light from the non-skin side. And if the same diaper 1 is seen from the skin side in this state, the above-mentioned protruding parts Aca, Acb can be compared and seen in a form that allows the diaper 1 to be seen through in the thickness direction. It can be determined whether or not the shapes of the parts Aca and Acb are different.
  • the areas where the end portions 10eb overlap are also different from each other. Specifically, the latter is larger than the former. Therefore, when the absorptive main body 10 is seen from the skin side, a worker etc. can distinguish the belly side and the back side of diaper 1 easily based on the difference of these areas.
  • the size relationship of the areas is not limited to this. That is, in some cases, the former may be larger than the latter.
  • a portion 30bn of the back band member 30b is the belly band member 30a. It projects in the longitudinal direction (downward in FIG. 1) more than the portion 30a1HL to be the leg opening 1HL. That is, the so-called butt cover 30bn is seen projecting. Therefore, the worker etc. can intuitively perceive that the band member 30b having the buttock cover 30bn is the back side band member 30b by looking at the buttock cover 30bn.
  • the buttocks cover 30bn since the inclined portion 35 kk of the elastic member 35 k described above is present in the buttock cover 30 bn, a contracting force is applied not only in the lateral direction but also in the longitudinal direction. 30bn shrinks in both the lateral and longitudinal directions to form a large wrinkle. Therefore, the buttocks cover 30bn is in a state of being conspicuous as compared with other parts, and it is thus easy for the operator or the like to see.
  • the inclined portion 35kk has a characteristic shape in which it is inclined from the longitudinal direction and the lateral direction, but as shown in FIG. 2, the inclined portion 35kk is a lateral end of the back side belt member 30b.
  • the absorbent main body 10 is not overlapped with the end portion, and the back side belt member 30b is made of a non-woven fabric having a gap between fibers, so the non-woven fabric can be seen through.
  • the inclined portion 35 kk can also be viewed from the skin side. Therefore, even when the diaper 1 is viewed from the skin side, the worker etc. promptly see that the band member having the inclined portion 35 kk is the back side belt member 30 b through visual recognition of the inclined portion 35 kk having such a characteristic shape. It can be recognized.
  • FIG. 7 is a schematic plan view of the unfolded diaper 1 as viewed from the non-skin side, but as shown in FIG. 7, in this example, the absorbent main body 10 has an abdominal end 10ea in the longitudinal direction. Between the ventral band member 30a and the dorsal band member 30b, and a portion 10c between the ventral band member 30a and the dorsal end member 10b. And since color difference area Ac (area shown by hatching in Drawing 3) is formed in the whole surface of leak-proof sheet 15a of absorptive main part 10 as mentioned above, color difference is carried out also to the portion 10c which does not overlap. The area Ac is present.
  • color difference area Ac area shown by hatching in Drawing 3
  • the ventral end 10ea and the back end 10eb of the absorbent main body 10 respectively show the ventral belt member 30a and the dorsal belt member 30b.
  • the blue color of the different color area Ac of the leak-barrier sheet 15a appears lighter than the non-overlapping portion 10c. That is, the end 10ea on the belly side and the end 10eb on the back side are each a light blue light color area Ac1 (see the portion with the coarse hatching in FIG. 7).
  • the non-overlapping portion 10c the blue of the color difference region Ac appears darker than the light color region Ac1, that is, the non-overlapping portion 10c is a dark blue dark region Ac2 (FIG. 7). See the fine hatching in the middle). And thereby, when it sees from the non-skin side, the absorptive main body 10 will appear to have two light color area
  • the absorbent core 11 c is obstructed and it is difficult to visually recognize the color difference area Ac of the leak-proof sheet 15.
  • the above-mentioned light color area Ac1 and dark color on the skin side due to the fact that the ventral end 10ea and the back end 10eb of the absorbent main body 10 can be visually recognized without passing through the member 30a and the dorsal band member 30b.
  • the area Ac2 is not formed. Therefore, the worker etc. can easily distinguish the non-skin side and the non-skin side of the diaper 1 based on the presence or absence of visual recognition of the light color area Ac1 and the dark color area Ac2 on the absorbent main body 10 .
  • the elastic member 35k having the inclined portion 35kk described above is provided across the absorbent main body 10 in the lateral direction, here, the elastic member 35k is thicker than the absorbent main body 10 in the thickness direction. Because it is located on the non-skin side, the side on which the elastic member 35k having the inclined portion 35kk overlaps the absorbent main body 10 and looks good as shown in FIG. 7 is the non-skin side of the diaper 1, As shown in FIG. 6, the side of the elastic member 35 k in the lateral direction is hidden behind the absorbent main body 10, and the side on which the elastic member 35 k is difficult to see is the skin side of the diaper 1. Therefore, the worker etc. can easily identify the skin side and the non-skin side of the diaper 1 based on this difference.
  • the inclined portions 35kk and 35kk provided on both sides in the lateral direction of the elastic member 35k are the boundaries between the light color area Ac1 and the dark area Ac2 from the outside to the inside in the lateral direction. It is displaced inward in the longitudinal direction of the diaper so as to approach the position BL.
  • the inclined portion 35kk is more easily noticeable based on both the light color region Ac1 and the dark color region Ac2 located in the vicinity of the inclined portion 35kk.
  • Etc. become easy to notice the elastic member 35 k having the inclined portion 35 kk.
  • the band member in which the elastic member 35k is located is the back side band member 30b, which facilitates the discrimination between the belly side and the back side of the diaper 1 described above.
  • FIG. 8A and 8B are explanatory diagrams of a first modified example of the present embodiment.
  • 8A is a schematic plan view of the diaper 1 viewed from the skin side
  • FIG. 8B is a cross-sectional view taken along the line BB in FIG. 8A.
  • the first modified example for the purpose of reducing the load on the skin at each of the end portions 51a and 51b in the longitudinal direction of the absorbent main body 10, covering sheets 51a and 51b from the skin side as compared with the above embodiment (FIG. 8A) See the dot pattern part in). And it mainly differs from the above-mentioned embodiment in this point, and points other than this are almost the same. Therefore, in the following, this difference will be mainly described, and the same configuration as that of the above-described embodiment will be denoted by the same reference numeral, and the description thereof will be omitted.
  • the covering sheets 51a and 51b are, for example, rectangular white nonwoven fabrics that are long in the lateral direction, and are provided on the ventral side and the dorsal side, respectively. And the covering sheet 51a (equivalent to the first sheet) on the ventral side straddles the end edge portion 10eae along the lateral direction of the ventral end portion 10ea of the absorbent main body 10 in the diaper longitudinal direction, 10eae is covered from the skin side over the entire length in the lateral direction. In addition, the covering sheet 51b on the back side (corresponding to the second sheet) similarly extends over the edge portion 10ebe along the lateral direction of the back end 10eb of the absorbent main body 10 in the diaper longitudinal direction. The edge 10 ebe is covered over the entire length in the lateral direction from the skin side.
  • both of the covering sheets 51a and 51b are made of non-woven fabric, they both have inter-fiber gaps, whereby when the diaper 1 is viewed from the skin side, each covering The color difference area Ac (refer to the hatched portion in FIG. 8) of the leak-barrier sheet 15a can be visually recognized in the form of the sheets 51a and 51b. Further, since the covering sheets 51a and 51b are white and different in color from the blue color difference area Ac of the leakproof sheet 15a, the visibility of the same area Ac in the form in which the sheets 51a and 51b are watermarked Is getting better.
  • the covering sheets 51a and 51b partially cover the portions Aca and Acb which protrude from the absorbent core 11c in the color difference area Ac. Then, in the portion covered with the sheets 51a and 51b, the color difference area Ac appears to be thinner than the uncovered portion by the amount that transmits the covering sheets 51a and 51b, but here, as shown in FIG. 8A.
  • the maximum length Lb is different from one another.
  • the maximum value La of the length in the diaper longitudinal direction of the portion which appears thin in the portion Aca projecting on the ventral side and the portion Acb projecting on the back side The maximum value Lb of the length of the diaper in the longitudinal direction of the thin portion appears different from each other. And based on this difference, the same worker etc. can distinguish the belly side and the back side of diaper 1 easily.
  • the maximum value La on the ventral side of the former is longer than the maximum value Lb on the dorsal side of the latter, but this magnitude relationship is not limited to the above. That is, the magnitude relationship may be reverse to the above.
  • Drawing 9 is an explanatory view of the 2nd modification of this embodiment, and is an outline top view which looked at diaper 1 from the skin side.
  • the linear embossed recess EB (corresponding to the pressing portion) is formed by pressing from the skin side of the absorber 11,
  • the rigidity of the absorber 11 is enhanced.
  • this difference will be mainly described, and the same configuration as that of the above-described embodiment will be denoted by the same reference numeral, and the description thereof will be omitted.
  • the formation of the linear embossed depressions EB as shown in FIG. 9 is performed by squeezing the absorber 11 from the skin side in the thickness direction in a lattice pattern.
  • the size of the four sides of the grid of the grid pattern is, for example, in the range of 10 mm to 30 mm, thereby enhancing the rigidity of the absorber 11 while maintaining appropriate softness. .
  • the top sheet 13 located in the skin side rather than the absorber 11 is white in the same color as the absorber 11 in this example, the color difference of the leakproof sheet 15a located in the non-skin side rather than the absorber 11
  • the region Ac is also present in the portion 10 c of the absorbent main body 10 that does not overlap with either the ventral band member 30 a or the dorsal band member 30 b.
  • region Ac is the above-mentioned blue, it is a color different also with the white absorber 11.
  • the embossed recess EB of the absorber 11 is viewed in a form that the top sheet 13 is seen through.
  • the color of the top sheet 13 is It is white in the same color as the skin side of the absorber 11. Therefore, the visibility of the embossing recessed part EB in the form which penetrates the top sheet 13 is good, As a result, the embossing recessed part EB can be visually recognized from the skin side.
  • the diaper 1 is viewed from the non-skin side as shown in FIG. 3, the embossed recess EB of the absorber 11 is viewed in a form that allows the colored area Ac of the leakproof sheet 15a to be seen through.
  • the color difference area Ac is a white color on the non-skin side of the absorber 11 and a blue color different from the color. Therefore, the visibility of the embossed recess EB in the form of penetrating the leakproof sheet 15a of the color difference area Ac is very poor, and as a result, the embossed recess EB can not be viewed substantially from the non-skin side. That is, the visibility of the embossed recess EB of the absorber 11 greatly differs between the case where the diaper 1 is viewed from the skin side and the case where it is viewed from the non-skin side. Therefore, based on the difference in visibility, the worker or the like can quickly identify the skin side and the non-skin side of the diaper 1.
  • this embossing recessed part EB was formed by pressing the absorber 11 from the skin side, it is not restricted to this at all. That is, it may be formed by squeezing the absorber 11 from the non-skin side, or may be formed by squeezing from both the skin side and the non-skin side.
  • lattice-like pattern of this example formed the diagonal grid
  • the four sides of the grid may have a grid shape in which the direction is parallel to one of the diaper longitudinal direction and the lateral direction.
  • the formation pattern of the embossed depressions EB is not limited to any grid, and may be another pattern.
  • it may be a dot pattern in which the plurality of dot-shaped embossed recesses EB are discretely arranged in the diaper longitudinal direction and the lateral direction.
  • the portions Aca and Acb that protrude from the absorbent core 11 c in the color difference region Ac of the leakproof sheet 15 a can be visually recognized in a transparent form, desirably, the illuminance at the position of the absorbent main body 10 ( It is preferable that lx) be visible in an environment of 100 lx to 1000 lx.
  • the illumination intensity of the above-mentioned numerical range is illumination intensity at the time of diaper exchange generally
  • the above-mentioned projected parts Aca and Acb can be certainly recognized visually at the time of diaper exchange, and the result , It can be reliably prevented that the person to be worn wears the diaper 1 in front of the back.
  • absorptive main part 10 was provided with solid gathers sheet 17, it is not restricted to this at all. That is, the three-dimensional gather sheet 17 may not be provided.
  • the absorbent core 11c is provided in a plurality of layers such as two layers in the thickness direction.
  • another absorbent core 11c1 does not protrude longitudinally and laterally from the above absorbent core 11c above the absorbent core 11c having a substantially hourglass shape in plan view. It may be overlapped and arranged in a planar view substantially rectangular shape.
  • the outer peripheral shape of the leak-barrier sheet 15a is rectangular, so the outer peripheral shape of the color difference area Ac is also rectangular, and due to this, the color difference area Of Ac, the outer peripheral shape of the portion Aca protruding from the absorbent core 11c on the ventral side and the outer peripheral shape of the portion Acb protruding on the same back side were the same. And, in that case, based on the fact that the outer peripheral shape of the absorbent core 11c differs between the ventral side and the dorsal side, the inner periphery of the portion Aca of the color difference area Ac that protrudes on the ventral side from the absorbent core 11c.
  • the shape and the inner circumferential shape of the part Acb protruding on the same back side are different from each other, whereby the part Aca protruding on the ventral side and the part Acb protruding on the back side have different shapes.
  • it is not limited to this at all.
  • FIG. 11 is an explanatory view of one example thereof, and is a schematic plan view of the diaper 1.
  • the shape of the end edge portion Acae in the diaper longitudinal direction in the ventrally projecting portion Aca has a V shape in which the central portion in the lateral direction is inward of the end portion in the diaper longitudinal direction.
  • the shape of the edge part Acbe of the diaper longitudinal direction in the part Acb which protruded on the back side forms the reverse V shape which the center part of the horizontal direction protruded outside the diaper longitudinal direction rather than the end part. . And if it becomes such, by visually recognizing the difference in the perimeter shape of these parts Aca and Acb, a worker etc. can distinguish the belly side and the back side of diaper 1 easily.
  • the shape of the absorbent core 11c may be a rectangular shape in plan view as shown in the schematic plan view of FIG. That is, even if the outer peripheral shapes of the core 11c are the same on the ventral side and the back side, in the example of FIG. 12, based on the difference in the outer peripheral shapes of the portions Aca and Acb in the color difference area Ac. It is possible to distinguish between the ventral side and the dorsal side of the diaper 1. Therefore, such an embodiment is also included in the scope of the present invention.

Abstract

La présente invention concerne un corps absorbant (10) qui comporte une partie centrale absorbante (11c) comprenant un matériau absorbant les liquides, une feuille (13) faisant face à la peau et disposée de façon à protéger la partie centrale absorbante (11c) du côté faisant face à la peau dans le sens de l'épaisseur, et une feuille (15) ne faisant pas face à la peau disposée de façon à protéger la partie centrale absorbante (11c) du côté ne faisant pas face à la peau dans le sens de l'épaisseur. La feuille (15) ne faisant pas face à la peau possède une zone (Ac) présentant une différence de couleur, dont la couleur est différente de celle de la partie centrale absorbante (11c). La zone (Ac) présentant une différence de couleur comporte une section (Aca) qui fait saillie dans la direction longitudinale ou la direction transversale par rapport à la partie centrale absorbante (11c) au niveau d'une extrémité longitudinale de la zone, et une section (Acb) qui fait saillie dans la direction longitudinale ou la direction transversale par rapport à la partie centrale absorbante (11c) au niveau de l'autre extrémité longitudinale de la zone. Lorsque le corps absorbant (10) est observé depuis le côté faisant face à la peau dans le sens de l'épaisseur, les sections (Aca, Acb) qui font saillie depuis la partie centrale absorbante (11c) à l'intérieur de la zone (Ac) présentant une différence de couleur sont visibles à travers la feuille (13) faisant face à la peau, la section (Aca) qui fait saillie au niveau de la première extrémité de la zone (Ac) présentant une différence de couleur, et la section (Acb) qui fait saillie au niveau de l'autre extrémité, ayant des formes différentes l'une par rapport à l'autre.
PCT/JP2015/060431 2015-03-31 2015-04-02 Article absorbant WO2016157490A1 (fr)

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JP2015071589A JP5784851B1 (ja) 2015-03-31 2015-03-31 吸収性物品

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EP3801420B1 (fr) * 2018-06-05 2024-03-06 Essity Hygiene and Health Aktiebolag Réseau d'articles de culotte jetable et procédé de production d'un réseau d'articles de culotte jetable
JP6913201B1 (ja) * 2020-04-17 2021-08-04 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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