WO2018221297A1 - スカート付き使い捨ておむつ - Google Patents

スカート付き使い捨ておむつ Download PDF

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Publication number: WO2018221297A1
Authority: WO; WIPO (PCT)
Prior art keywords: skirt; disposable diaper; diaper; longitudinal direction; region
Prior art date: 2017-05-31

Application number

PCT/JP2018/019506

Other languages

English (en)

French (fr)

Japanese (ja)

Inventor

佐山　寧

居▲義▼ 高

Original Assignee

ユニ・チャーム株式会社

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2017-05-31

Filing date

2018-05-21

Publication date

2018-12-06

2018-05-21 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

2018-05-21 Priority to CN201890000111.4U priority Critical patent/CN209122656U/zh

2018-12-06 Publication of WO2018221297A1 publication Critical patent/WO2018221297A1/ja

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Classifications

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

Definitions

the present invention relates to a disposable diaper with a skirt.
a pants-type disposable diaper is known as an absorbent article that absorbs excrement.
a structure in which a skirt is provided so as to cover a pants part mainly for women has been proposed.
a skirt-shaped absorptive structure in which a skirt is covered from the top of the pant by joining a skirt member to the waist part of the pant is disclosed.
the absorbent article with a skirt as in Patent Document 1 requires an additional material for forming the skirt portion, which increases the manufacturing cost. Further, in the manufacturing stage, the process becomes complicated by increasing the number of processes for joining the additional material to be the skirt to the pants.
disposable diapers are made of a flexible material such as nonwoven fabric. Therefore, there is a possibility that the skirt is easily rolled up as a whole, or when the skirt is rolled up, a force is applied to the joint portion between the skirt and the diaper and the joint portion is easily peeled off. Furthermore, there is a risk that the function, design, cuteness, etc. of the skirt may be impaired, such as the skirt becoming difficult to spread cleanly or conversely spreading too much.
This invention is made
the main invention to achieve the above objective is
An absorbent article having a longitudinal direction and a transverse direction intersecting with the longitudinal direction, the absorbent article being provided along the longitudinal direction and absorbing excrement, and provided along the transverse direction
the member includes a rear skirt portion on the lower side in the longitudinal direction than the rear joint portion, and at least a part of both ends of the front belt member and both ends of the rear belt member in the lateral direction are at least a part.
the front belt member includes a low elastic region having a predetermined width in the longitudinal direction at the front skirt portion, and at an upper end portion of the front belt member, The high-elastic region having the predetermined width is provided, and the lateral tension acting on the low-elastic region is smaller than the transverse tension acting on the high-elastic region.
a disposable diaper with a skirt is provided.
FIG. 3 is a schematic sectional view showing an AA section in FIG. 2. It is a schematic plan view when the diaper 1 in a natural state is viewed from the front side (abdominal side). It is a figure explaining the relationship between the front side junction part 51 and the rear side junction part 52, the side edge junction part 30ew, and the side edge junction part 40ew. It is a top view showing about the state where a part of skirt part 30s was rolled up by the diaper 1.
FIG. 3 is a schematic sectional view showing an AA section in FIG. 2. It is a schematic plan view when the diaper 1 in a natural state is viewed from the front side (abdominal side). It is a figure explaining the relationship between the front side junction part 51 and the rear side junction part 52, the side edge junction part 30ew, and the side edge junction part 40ew. It is a top view showing about the state where a part of skirt part 30s was rolled up by the diaper 1.
FIG. 3 is a schematic sectional view showing an AA
FIG. 1 It is a figure explaining the relationship between the front side junction part 51 and the rear side junction part 52 in the modification of the diaper 1, and the side edge junction part 30ew and the side edge junction part 40ew. It is a top view showing about the state where a part of front side skirt part 30s was rolled up in the modification of diaper 1.
An absorbent article having a longitudinal direction and a transverse direction intersecting with the longitudinal direction, the absorbent article being provided along the longitudinal direction and absorbing excrement, and provided along the transverse direction
the member includes a rear skirt portion on the lower side in the longitudinal direction than the rear joint portion, and at least a part of both ends of the front belt member and both ends of the rear belt member in the lateral direction are at least a part.
the front belt member includes a low elastic region having a predetermined width in the longitudinal direction at the front skirt portion, and at an upper end portion of the front belt member, The high-elastic region having the predetermined width is provided, and the lateral tension acting on the low-elastic region is smaller than the transverse tension acting on the high-elastic region.
a disposable diaper with a skirt is provided.
a part of the front belt member can easily function as a front skirt part. That is, a separate sheet member for forming the skirt and a special processing step are not required. Therefore, it is possible to realize a disposable diaper with a skirt that does not require complicated processing and can suppress the manufacturing cost.
the lower end position of the front side joining portion is lower than the lower end position of the side edge joining portion that joins both end portions of the front side band member and both end portions of the rear side band member. It is desirable that it is low.
the lower end position of the front side joining portion is lower than the lower end position of the side edge joining portion that joins both end portions of the front side band member and both end portions of the rear side band member. It is desirable that it is high.
the disposable diaper with a skirt has no elastic member in the low elastic region.
the difference between the lateral tension acting on the low elastic region and the lateral tension acting on the low elastic region is large, and the front skirt portion is likely to spread greatly, and the skirt A unique appearance can be formed.
the tension hardly acts in the low elastic region, the front skirt portion is easily deformed according to the movement of the wearer's body when the diaper is worn, and the wearer is less likely to feel uncomfortable or uncomfortable.
the low elastic region has a portion overlapped on the non-skin side in the thickness direction of the absorbent main body, and in the overlapped portion, through the low elastic region It is desirable that the absorbent main body is visible.
the user can visually recognize a picture or a pattern attached to the surface of the absorbent main body even in a portion covered by the front skirt portion (low elastic region). Become. Therefore, even if it is a case where a front side skirt part is provided, it can suppress that the design property of a disposable diaper deteriorates.
the light transmittance in the low elastic region is larger than the light transmittance in the high elastic region.
the number of sheet members laminated in the thickness direction in the low elasticity region is less than the number of sheet members laminated in the thickness direction in the high elasticity region, It is desirable.
the skirt part is easily deformed freely, and an impression closer to the skirt can be given to the user.
the number of laminated sheet members is small in the high elasticity region, it is easy to ensure sufficient strength in the vicinity of the waistline opening.
two or more non-woven fabrics are spread independently at the skirt portion of the front skirt portion, so that the frills are laminated and the appearance of the skirt can be made more cute. Further, the touch at the skirt portion of the front skirt portion can be made softer.
the rear band member in the central portion in the lateral direction, includes a low elastic region having a predetermined width in the longitudinal direction at the rear skirt portion, and the rear skirt In the portion, at least two sheet members are laminated in the thickness direction, and an adhesive for joining the laminated sheet members is not provided at the lower end portion of the low elasticity region of the front skirt portion.
the length of the front band member in the vertical direction is equal to the length of the rear band member in the vertical direction.
the same size material can be used for the front side band member and the rear side band member, so that the manufacturing process is simplified and the manufacturing cost can be kept low. Moreover, even if the front band member and the rear band member have the same size, it is possible to easily determine the front-rear direction of the diaper according to the size and shape of the frills formed on the skirts of the front and rear skirts.
the front belt member has a plurality of elastic members arranged at predetermined intervals in the vertical direction, and is provided on the lowest side in the vertical direction among the plurality of elastic members.
the position of the elastic member is preferably higher than the lower end position of the side edge joining portion that joins the both end portions of the front band member and the both end portions of the rear band member.
a predetermined interval is formed between the elastic member disposed closest to the front skirt portion and the front skirt portion. Therefore, the lateral tension generated by the elastic member over the entire region of the front skirt portion is not easily affected, and the front skirt portion tends to have a shape that spreads out.
the position of the lower end in the vertical direction of the skirt portion is preferably higher than the position of the lower end in the vertical direction of the absorbent main body.
the user since at least a part of the crotch part of the absorbent main body is exposed in a natural state, the user (wearer) can easily confirm the position of the leg-hole opening. Thereby, when putting a wearer's leg through a leg periphery opening at the time of diaper wear, it becomes difficult to produce problems, such as a leg getting caught.
the low elastic region has a different design from the high elastic region.
Such a disposable diaper with a skirt can improve the design of the front skirt.
the pattern or the like attached to the front skirt portion is unlikely to shrink and the design is unlikely to deteriorate.
Such a disposable diaper with a skirt wherein a lower end of a side edge joining portion joining both end portions of the front side band member and both end portions of the rear side band member, a lower end in the vertical direction and the lateral direction of the front skirt portion It is desirable that the larger angle among the angles formed by the straight line connecting the outer end of each other at the shortest distance with the longitudinal direction is not less than 100 degrees and not more than 140 degrees.
a disposable diaper with a skirt by setting the angle to 100 degrees or more, it becomes easy to prevent the front skirt portion from being rolled up. Moreover, it becomes easy to suppress that a front side skirt part will be in the closed state by making an angle into 140 degrees or less. Thereby, it becomes easy to form a skirt having a beautiful appearance.
Such a disposable diaper with a skirt in an extended state, a lower end of a side edge joining portion that joins both ends of the front side belt member and both ends of the rear side belt member, and a lower end in the longitudinal direction of the front side joining portion It is desirable that the smaller one of the angles formed by the straight line connecting the shortest distances with the lateral direction is not less than 10 degrees and not more than 30 degrees.
the angle by setting the angle to 10 degrees or more, the difference in height between the lower end position of the side edge joint portion and the lower end position of the front side joint portion becomes large, and the skirt curl becomes horizontal. It becomes easy to suppress propagation in the direction.
the angle by setting the angle to 30 degrees or less, the position of the side edge joint portion becomes too high and the joining strength becomes insufficient, or the position of the lower end portion of the front side joint portion becomes too low and the front skirt portion
Such a disposable diaper with a skirt has leg elastic members along the longitudinal direction on both sides of the absorbent main body in the lateral direction, and the leg elastic members and the leg elastics in the thickness direction. It is desirable that the member has a portion where the front side joint portion overlaps.
FIG. 1 is a schematic perspective view of the diaper 1 viewed from the front side.
FIG. 2 is a schematic plan view of the diaper 1 in the unfolded and extended state as seen from the skin side.
FIG. 3 is a diagram illustrating the structure of the absorbent main body 10.
FIG. 4 is a schematic cross-sectional view showing the AA cross-section in FIG. In addition, the "elongation state" in FIG.
each member for example, the below-mentioned absorptive main body 10 and the front side belt member which comprises diaper 1) 30
each member for example, the below-mentioned absorptive main body 10 and the front side belt member which comprises diaper 1) 30
each member for example, the below-mentioned absorptive main body 10 and the front side belt member which comprises diaper 1) 30
the like is equal to or close to the dimension of the member itself.
the diaper 1 has a vertical direction, a horizontal direction, and a front-rear direction as three directions orthogonal to each other in the pants-type state of FIG.
the upper side in the vertical direction in this pant-type state is also referred to as the “trunk opening side”
the lower side in the vertical direction is also referred to as the “inseam side”.
the front side in the front-rear direction is also referred to as “abdominal side”
the rear side is also referred to as “back side”.
the diaper 1 in the unfolded state of FIG. 2, has a longitudinal direction and a width direction as three directions orthogonal to each other.
the one side and the other side in the longitudinal direction in the developed state are also referred to as “abdominal side” and “back side”, respectively.
deployment state is the same direction as said horizontal direction in a pants type state. Therefore, in the following, the width direction is also referred to as “lateral direction”.
the longitudinal direction of the unfolded state is a direction along the longitudinal direction of the pants-type state.
the direction perpendicular to the longitudinal direction (longitudinal direction) and the lateral direction (width direction) is referred to as the “thickness direction”, and the side that comes into contact with the wearer's skin is referred to as the “skin side”.
the opposite side is referred to as the “non-skin side”.
the diaper 1 is a so-called three-piece diaper and has three parts 10, 30, and 40. That is, this diaper 1 has an absorbent main body 10 that is applied to the wearer's crotch as a first part and absorbs excrement such as urine, and as a second part from the front side of the wearer to the stomach side. It has the front side belt member 30 which covers a part, and has the back side belt member 40 which covers a back side part from the back side of the wearer as a 3rd part.
the front band member 30 and the rear band member 40 are arranged in parallel with a gap in the longitudinal direction (longitudinal direction).
the sex body 10 is stretched over.
the one end part 10ea of the longitudinal direction of the absorptive main body 10 is joined with the front side belt member 30, the other end part 10eb of the longitudinal direction of the absorptive main body 10 is joined and fixed to the rear side band member 40, and the external shape is It has a substantially H shape in plan view.
the absorptive main body 10 is folded in half with the substantially central portion C10 in the longitudinal direction as a folding position.
the front belt member 30 and the rear belt member 40 that are opposed to each other are the side edge joint portion 30ew and the side edge joint portion 40ew that are to be in contact with the wearer's flank.
the band members 30 and 40 are formed into an annular shape. Thereby, it becomes the diaper 1 of the wearing condition in which the trunk periphery opening 1HB and a pair of leg periphery opening 1HL as shown in FIG. 1 were formed.
the side edge joint part 30ew and the side edge joint part 40ew are provided in the partial area
the absorptive main body 10 has a function of absorbing excrement such as urine, has a substantially rectangular shape in a plan view as shown in FIG. 3, and has a longitudinal center along the longitudinal direction of the diaper 1 while maintaining the center in the lateral direction. Is arranged.
the absorbent main body 10 includes an absorbent core 11, a surface sheet member 13 that covers the absorbent core 11 so as to be wrapped from the skin side, and the absorbent core 11 that covers the absorbent core 11 from the non-skin side of the core 11. And a back sheet member 15 that forms the exterior.
the absorbent core 11 is a member formed by laminating liquid absorbent materials, and can absorb excrement such as urine.
liquid absorbent material for example, liquid absorbent fibers such as pulp fibers can be used.
the absorptive core 11 may contain, for example, a superabsorbent polymer as a liquid absorptive granule, or contains a liquid absorptive material other than a liquid absorptive fiber and a liquid absorptive granule. Also good.
the absorptive core 11 may be coat
the absorptive core 11 of the present embodiment has a ventral end 11a which is an upper end in the vertical direction in FIG. 3 and a dorsal end 11b which is a lower end in the vertical direction in FIG. And between the abdominal side edge part 11a and the back
the absorptive core 11 is comprised so that it may become a substantially hourglass shape in planar view as shown in FIG.
the surface sheet member 13 is a sheet-like member that covers the absorbent core 11 from the skin side, and is, for example, a liquid-permeable nonwoven fabric having a larger planar size than the absorbent core 11.
the back sheet member 15 is a sheet-like member that covers the absorbent core 11 from the non-skin side, and is a planar sheet that is larger than the absorbent core 11, and an example thereof is liquid such as polyethylene or polypropylene.
a sheet having a two-layer structure in which a permeable leak-proof sheet 15a and an exterior sheet 15b such as a nonwoven fabric are bonded to each other can be used.
a so-called three-dimensional gather LSG and leg gathers LG are formed by the exterior sheet 15b.
the three-dimensional gather LSG is a leak-proof wall portion provided upright at each lateral end portion of the top sheet member 13, while the leg gathers LG are formed in the leg-openings 1 HL and 1 HL of the diaper 1. It is a leg-around elastic part to be formed.
the exterior sheet 15b protrudes greatly in the lateral direction from both lateral sides of the leak-proof sheet 15a, and the protruding part 15bf has a lateral end of the absorbent main body 10 at the folding position toward the center in the lateral direction.
the leg-around elastic member 17 such as rubber thread and the leg-around auxiliary elastic member 19 are fixed in the longitudinal direction in the vicinity of the turn-up position in the vicinity of the turn-up position.
a gather LG is formed.
assistant elastic member 19 is not necessarily required, and the leg periphery gathers LG may be formed only by the leg periphery elastic member 17.
FIG. The folded portion further extends toward the center in the lateral direction, and is joined to the end portion at a position covering the lateral end portion of the top sheet member 13.
the part joined to this end part functions as the base end part LSGb of the three-dimensional gather LSG, that is, the part on the tip side in the lateral direction further than the base end part LSGb serves as the free end part LSGf. 13 can stand up.
an LSG elastic member 18 such as a thread rubber is fixed to the distal end portion of the free end portion LSGf in a state of being extended in the vertical direction along the vertical direction. Therefore, due to the contraction of the LSG elastic member 18 in the vertical direction, the absorbent main body 10 is bent in the vertical direction so that the surface sheet member 13 side becomes the inner peripheral side.
the free end portion LSGf contracts in the vertical direction and rises from the top sheet member 13 due to the contraction force, whereby the free end portion LSGf functions as a three-dimensional gather LSG.
a liquid permeable material such as tissue paper is used as a second sheet between the top sheet member 13 and the absorbent core 11 or between the back sheet member 15 and the absorbent core 11 (see FIG. 3).
a sheet may be interposed.
Each of the front side band member 30 and the rear side band member 40 is a sheet member having a substantially rectangular shape in a plan view made of a flexible sheet such as a nonwoven fabric (see FIG. 2).
the front side belt member 30 is formed by joining two non-woven fabrics 31 and 32 in the thickness direction. Between the two nonwoven fabrics 31, 32, a plurality of elastic members 35, 35... Such as thread rubber are arranged along the lateral direction. The elastic members 35, 35... Are joined and fixed to the nonwoven fabrics 31, 32 while being stretched in the horizontal direction while being inserted in the vertical direction with a gap in the vertical direction. Thereby, the front belt member 30 can be stretched in the lateral direction.
the nonwoven fabrics 31 and 32 are joined to each other via an adhesive provided on the surface of the elastic member 35.
the elastic member 35 is not disposed in the region below the side edge joint portion 30ew in the vertical direction (see FIG. 2), the nonwoven fabrics 31 and 32 are joined to each other in the region. Are separately provided (see FIG. 4).
the non-skin-side nonwoven fabric 32 protrudes above the upper end in the longitudinal direction of the skin-side nonwoven fabric 31 on the upper side in the vertical direction of the front side band member 30 (the waist opening side), and the protruding portion is folded back to the skin side.
a front folded portion 32 f is formed, and the front folded portion 32 f is bonded and fixed to the skin side of the nonwoven fabric 31.
the upper end 30ea of the front belt member 30 is covered by the front folded portion 32f, and the edge of the upper end 30ea is less likely to bite into the wearer's skin (abdominal waistline) when the diaper 1 is worn, resulting in discomfort during wearing. It can be made difficult to occur.
the nonwoven fabrics 31 and 32 are not joined to each other at the lower end 30eb of the front belt member 30, and so-called dry edges are formed with a predetermined width.
a dry edge having a predetermined interval LD30 is provided between the lower ends (30eb) of the nonwoven fabrics 31 and 32 and the joining portion 37.
the front side band member 30 and the absorbent main body 10 are joined in the thickness direction via the front side joining part 51.
the front joint 51 is formed by using a joining means such as welding or adhesion.
the front joint 51 is formed using, for example, a hot melt adhesive.
the diaper 1 has the area
the front belt member 30 includes a front skirt portion 30 s on the lower side in the vertical direction than the front joint portion 51.
the front band member 30 and the absorbent main body 10 are bonded in a region having a length of L30s between the lower end 51eb of the front side bonding portion 51 and the lower end 30eb of the front side band member 30. This region that is not joined becomes the front skirt portion 30s.
the rear side band member 40 has a structure substantially similar to that of the front side band member 30. That is, the rear side belt member 40 is formed by joining the nonwoven fabrics 41 and 42 in the thickness direction, and a plurality of elastic members 45 and 45 such as thread rubber are provided between the nonwoven fabrics 41 and 42 in the thickness direction. Are joined and fixed in a state of being stretched in the lateral direction. As a result, the rear belt member 40 is given lateral stretchability. Moreover, the junction part 47 for joining the nonwoven fabrics 41 and 42 mutually is provided in the area
the non-skin-side nonwoven fabric 42 projects above the upper end in the longitudinal direction of the skin-side nonwoven fabric 41, and the projecting portion is folded back to the skin side.
the rear folded portion 42f is formed.
the nonwoven fabrics 41 and 42 are not joined to each other, and a so-called dry edge is formed (see FIG. 4). That is, a predetermined interval (LD 40) is provided between the lower ends of the nonwoven fabrics 41 and 42 and the joint portion 47.
the rear belt member 40 and the absorbent main body 10 are joined in the thickness direction via the rear joint 52.
the rear side joining part 52 is formed using, for example, a hot melt adhesive.
the diaper 1 has a region where the rear band member 40 is not bonded to the absorbent main body 10 on the lower side in the vertical direction than the rear bonding portion 52. In the unjoined region, the rear band member 40 can be deformed independently with respect to the absorbent main body 10 and functions as a skirt when the diaper 1 is formed into a pants shape.
a side skirt portion 40s is formed. That is, the rear band member 40 includes a rear skirt portion 40 s on the lower side in the vertical direction than the rear joint portion 52. In FIG.
the rear band member 40 and the absorbent main body 10 are bonded in a region having a length of L40s between the lower end 52eb of the rear side bonding portion 52 and the lower end 40eb of the rear side band member 40. This region that is not joined becomes the rear skirt portion 40s.
seat member 38 which covers the one end part 10ea of the longitudinal direction of the absorptive main body 10 and the lower end 32feb of the front side folding
the sheet member 38 makes it difficult for the edges of the one end portion 10ea and the lower end 32feb to bite into the wearer's skin when the diaper 1 is worn, making it less likely to cause discomfort during wearing.
seat member 48 which covers the other end part 10eb of the longitudinal direction of the absorptive main body 10 and the lower end 42feb of the back side folding
the sheet member 48 makes it difficult for the edges of the other end portion 10eb and the lower end 42feb to bite into the wearer's skin when the diaper 1 is worn, making it less likely to cause discomfort during wearing.
the sheet members 38 and 48 are not necessarily provided.
a part of the elastic member 35 may be cut at a portion where the front belt member 30 and the absorbent main body 10 (absorbent core 11) overlap in the thickness direction.
a part of the elastic member 35 disposed in the region overlapping with the front side joint portion 51 is cut (see FIG. 1), so that the stretchability by the elastic member 35 does not appear in the region. I have to. Thereby, it is suppressed that the absorptive main body 10 shrink
a part of the elastic member 45 may be cut at a portion where the rear band member 40 and the absorbent main body 10 overlap in the thickness direction.
a part of the elastic member 45 disposed in the region overlapping with the rear side joint portion 52 is cut, so that the stretchability by the elastic member 45 is not expressed in the region, thereby absorbing the elastic member 45. Excessive shrinkage of the main body 10 in the lateral direction is suppressed.
FIG. 5 is a schematic plan view of the natural diaper 1 when viewed from the front side (abdominal side).
the “natural state” is a state when the diaper 1 is left for a predetermined time. For example, after the front band member 30 and the rear band member 40 of the diaper 1 are pulled outward in the lateral direction, the band members 30 and 40 are set in the “extended state”, and this extended state is continued for 15 seconds. Release the tension and place it on a flat surface such as a desk. And the state which passed for 5 minutes by such plane flat placing is made into a natural state.
the front skirt portion 30 s on the lower side in the vertical direction than the front joint portion 51 spreads on the lower side in the vertical direction and on the outer side in the horizontal direction.
the whole diaper 1 has a skirt-like silhouette. This is because the elastic member 35 such as rubber thread is not disposed in the front skirt portion 30 s at the lower end in the vertical direction of the front band member 30, and is difficult to contract in the horizontal direction. This is because the upper end portion is easily contracted in the lateral direction by the elastic member 35. That is, the diaper 1 includes a low elastic region LER having a predetermined width (for example, a length L30s in FIG.
a high elastic region HER is provided in a region having the same predetermined width as described above (see FIG. 2).
the lateral tension acting on the low elasticity region LER is smaller than the lateral tension acting on the high elasticity region HER. Therefore, the front skirt portion 30s formed at the lower end portion of the front side band member 30 is less likely to contract laterally than the upper end portion of the front side band member 30, and the skirt shape as shown in FIG.
the magnitude of the lateral “tension” acting on each region can be measured as follows. First, an adhesive or the like is used on the skin side surface (or may be a non-skin side surface) in a region between one end in the lateral direction (for example, the left end) and the center in the lateral direction in the front belt member 30 in the natural state. Then, the reinforcing sheet member is joined. Next, a cut along the vertical direction is made in a range (for example, a length of L30s ⁇ 2) longer than the vertical length of the highly elastic region HER at the central position in the horizontal direction, so that the front belt member 30 and the elastic member 35 is cut.
a range for example, a length of L30s ⁇ 2
the elastic member 35 tends to contract from the lateral center (cut position) toward the lateral outside (one end), so that the cut position does not move from the lateral center position.
a tension measuring instrument or the like is used to grip the reinforcing sheet member and apply a force against the elastic member 35 contracting in the lateral direction.
the magnitude of the force measured by the tension measuring instrument can be the magnitude of the “tension” in the present embodiment.
the magnitude of the tension can be similarly measured for the low elastic region LER.
a part of the front belt member 30 among the members constituting the diaper 1 can be easily functioned as the front skirt portion 30s. That is, a sheet member separate from the front belt member 30 is provided to form a skirt, or special processing (for example, cutting processing or joining processing to form a skirt) is performed to function as a skirt. There is no need to Therefore, it is possible to realize a disposable diaper with a skirt that does not require complicated processing and can suppress the manufacturing cost.
the elastic member (elastic member 35) is not provided in the entire low elastic region LER, the lateral tension acting on the front skirt portion 30s is almost zero. Therefore, the difference in tension with the high elasticity region HER is increased, and the front skirt portion 30s is likely to spread greatly as shown in FIG. In addition, since the tension does not easily act, the front skirt portion 30s is easily deformed in accordance with the movement of the wearer's body when the diaper 1 is worn, and the wearer is less likely to feel discomfort or discomfort.
the shape when the front skirt portion 30s expands in the natural state satisfies the following conditions. That is, in FIG. 5, the straight line connecting the lower end 30ewb of the side edge joint portion 30ew and the end point 30sebs which is the lower end in the vertical direction and the outer end in the horizontal direction of the front skirt portion 30s at the shortest distance is the angle formed by the vertical direction. If the larger angle is ⁇ 30s, 180 degrees ⁇ ⁇ 30s ⁇ 90 degrees. Furthermore, 140 degrees ⁇ ⁇ 30s ⁇ 100 degrees is desirable.
⁇ 30s When ⁇ 30s is larger than 180 degrees (140 degrees), the front skirt portion 30s is closed, and conversely when ⁇ 30s is smaller than 90 degrees (100 degrees), the front skirt portion 30s is swollen. End up. On the other hand, if the magnitude of ⁇ 30s is within the above range, a skirt that is beautiful in appearance is formed, and the problem that the design and cuteness are impaired is unlikely to occur.
FIG. 6 is a diagram for explaining the relationship between the front side joint 51 and the rear side joint 52, and the side edge joint 30ew and the side edge joint 40ew.
FIG. 6 shows a state in which the diaper 1 is unfolded and extended as in FIG.
FIG. 7 is a plan view illustrating a state in which a part of the front skirt portion 30 s is rolled up in the diaper 1.
FIG. 7 shows a state in which the left end (end point 30 sebs) of the front skirt portion 30 s is rolled up.
the left end of the front skirt portion 30s is rolled up, first, it is rolled up to the position of the lower end 30ewb of the side edge joint portion 30ew formed on the left side of the front band member 30. Then, the curl of the front skirt portion 30s propagates from the lateral left side (outer side) to the right side (center side) so as to be pulled up by the curled up left end.
the diaper 1 as shown in FIG.
the position of the lower end 51 eb of the front side joint portion 51 is lower than the position of the lower end 30 ewb of the side edge joint portion 30 ew in the vertical direction.
the front skirt portion 30 s that has been rolled up to the height of the lower end 30 ewb at the left end in the horizontal direction can only be rolled up to the position of the lower end 51 eb that is lower than the lower end 30 ewb in the front side joint portion 51. That is, the front side joint portion 51 provided in the central portion in the horizontal direction suppresses the wrinkles of the front skirt portion 30 s from propagating in the horizontal direction.
the front skirt portion 30s is formed on the other side in the horizontal direction (right end portion in FIG. 7). Is hard to drown. Therefore, it is easy to prevent the entire front skirt portion 30s from curling up.
the relationship between the lower end 51eb of the front side joint portion 51 and the lower end 30ewb of the side edge joint portion 30ew satisfies the following conditions. That is, in the front belt member 30 in the extended state as shown in FIG. 6, the straight line connecting the lower end 51 eb of the front joint 51 and the lower end 30 ewb of the side edge joint 30 ew in the shortest distance is the angle formed by the lateral direction. When the smaller angle is ⁇ 51eb, 45 degrees ⁇ ⁇ 51eb ⁇ 5 degrees. Furthermore, 30 degrees ⁇ ⁇ 51 eb ⁇ 10 degrees is desirable.
⁇ 51eb is smaller than 5 degrees (10 degrees), the position of the lower end 51eb and the height of the lower end 30ewb become substantially equal, and it is difficult to suppress the skirt's curvature from propagating in the lateral direction.
⁇ 51eb is larger than 45 degrees (30 degrees)
the position of the lower end 30ewb of the side edge joint portion 30ew is increased, and the side edge joint portion 30ew cannot be formed with an appropriate size, and the bonding strength may be insufficient. is there.
the position of the lower end 51eb of the front joint portion 51 is lowered, and there is a possibility that the front skirt portion 30s may have difficulty in securing a sufficient area.
the magnitude of ⁇ 51eb is within the above-described range, it is possible to effectively prevent the front skirt portion 30s from rolling up without causing a problem in the structure of the diaper 1.
design may be improved by attaching a picture or a pattern to the exterior of the absorbent main body (corresponding to the back sheet member 15) by means of printing or the like.
a skirt is provided on such a diaper, the picture or pattern attached to the absorbent main body is hidden by the skirt, and the design may be deteriorated.
the front skirt portion 30 s has a structure that is difficult to bend as described above, the pattern or the like of the absorbent main body 10 is difficult to be visually recognized. Therefore, in the diaper 1, when viewed from the non-skin side in the thickness direction, the absorbent main body 10 is made visible through the front skirt portion 30s.
the absorbent main body 10 is visible through the low elastic region LER. Therefore, even if it is a case where 30 s of front side skirt parts are provided, it can suppress that the design property of the diaper 1 deteriorates.
the absorbent main body 10 in the diaper 1, by making the light transmittance in the low elastic region LER larger than the light transmittance in the high elastic region HER, the absorbent main body 10 can be easily seen through the front skirt portion 30s. Yes.
the light transmittance can be measured by, for example, a test method based on JIS Z8722. With such a configuration, in the low elastic region LER, the absorbent main body 10 can be easily seen through the front skirt portion 30s. On the other hand, in the highly elastic region HER, the absorbent main body 10 becomes difficult to visually recognize through the front side belt member 30.
the absorbent main body 10 can be visually recognized through the front belt member 30 in the highly elastic region HER provided in the vicinity of the waistline opening, the waistline opening portion in which a large force is likely to act on the user (wearer) during wearing. There is a fear that the sheet member is thin and anxiety may occur that the diaper 1 is torn. On the other hand, since the diaper 1 has low light transmittance in the highly elastic region HER and it is difficult to visually recognize the absorbent main body 10, it is difficult to cause anxiety for the user or the like.
the number of members (sheet members) stacked in the thickness direction in the low elastic region LER is larger than the number of members (sheet members) stacked in the thickness direction in the high elastic region HER. Few.
the members laminated in the thickness direction in the low elastic region LER front skirt portion 30s
the laminated members are the non-woven fabrics 31 and 32, the sheet member 38, and the front folded portion 32f.
the front skirt portion 30s is likely to be frilled, and an impression closer to the skirt can be given to the user (wearer).
the number of laminated sheet members is large in the high-elasticity region HER, it is easy to ensure sufficient strength at the waistline opening, and the problem that the diaper 1 is torn when worn is difficult to occur.
the design on the appearance is different between the low elastic region LER and the high elastic region HER.
the front belt member 30 is plain in the high elastic region HER, whereas the surface of the front belt member 30 is wavy in the low elastic region LER (front skirt portion 30 s).
the tension is less likely to act in the low elastic region LER, the pattern or the like attached to the front skirt portion 30s is unlikely to shrink, and the design is unlikely to deteriorate.
the design is unlikely to deteriorate.
the dry edge as described in FIG. 4 is formed at the lower end 30eb of the front side belt member 30 of the diaper 1. That is, no adhesive is provided on the skirt (lower end 30eb) of the front skirt portion 30s, and the nonwoven fabrics 31 and 32 are not joined to each other. Therefore, the nonwoven fabrics 31 and 32 are spread independently at the skirt portion of the front skirt portion 30s so that the frills are laminated, and the appearance of the skirt can be made more cute. And since the nonwoven fabrics 31 and 32 laminated
the position of the lower end of the nonwoven fabric 31 and the position of the lower end of the nonwoven fabric 32 may be shifted in the longitudinal direction.
the lower end position of the non-skin side nonwoven fabric 31 is made lower than the lower end position of the non-skin side nonwoven fabric 31 in the longitudinal direction. In this way, when viewed from the outside, the laminated structure of the nonwoven fabrics 31 and 32 is more easily recognized, and the double structure of the frills becomes conspicuous, so the appearance of the diaper 1 is further improved. Can be made.
the vertical width (length) of the dry edge at the lower end may be changed between the front skirt portion 30s and the rear skirt portion 40s. That is, the length of the interval LD30 between the lower end 30eb of the front skirt portion 30s and the lower end of the joint portion 37 is different from the length of the interval LD40 between the lower end 40eb of the rear skirt portion 40s and the lower end of the joint portion 47. May be. In this way, the shape and size of the frilled portion of the skirt can be made different before and after the diaper 1, so that the design and functionality of the diaper 1 can be further improved. For example, the dry edge interval LD40 in the rear skirt portion 40s is made longer than the dry edge interval LD30 in the front skirt portion 30s.
the front side has a simple design with a small frill, and it is possible to make it difficult to prevent movement of the wearer's leg when worn.
the wearer's buttocks side can be widely covered with a large frill on the rear side.
the length of the front band member 30 and the length of the rear band member 40 in the vertical direction are equal.
the same size material can be used for the front side band member 30 and the rear side band member 40, so that the manufacturing process is simplified and the manufacturing cost can be kept low.
the front band member 30 and the rear band member 40 are the same size, the appearance shape is similar before and after the diaper 1, so it becomes difficult to determine the front and back of the diaper 1, and the front and back are mistaken when worn. There is a risk of wearing it.
the size of the frilled portion of the skirt (the length of the dry edge) is changed before and after the diaper 1 as described above, the appearance of the diaper 1 will be different between the front and back.
the user wearer can easily determine the front and back of the diaper 1.
the length of the front band member 30 in the vertical direction and the rear band member 40 are not necessarily the same.
the length of the rear band member 40 in the vertical direction may be longer than the length of the front band member 30 so that the skirt is longer on the wearer's buttocks side.
the lowermost elastic member 35b among the plurality of elastic members 35 arranged in the vertical direction is arranged at a position higher than the lower end 30ewb of the side edge joint portion 30ew in the vertical direction. (See FIG. 2).
the elastic member 35b is an elastic member disposed at a position closest to the front skirt portion 30s in the vertical direction. That is, the front skirt portion 30s is most easily affected by the lateral tension generated by the elastic member 35b.
the position of the lower end 30ewb of the side edge joint portion 30ew is higher than the position of the upper end of the front skirt portion 30s (that is, the lower end 51eb of the front side joint portion 51) and is elastic.
the position of the member 35b is higher than the position of the lower end 30ewb of the side edge joint portion 30ew. Therefore, the lateral tension generated by the elastic member 35b over the entire area of the front skirt portion 30s is not easily affected, and the front skirt portion 30s can be freely deformed and tends to have a shape that spreads out.
the position of the lower end 30eb of the front skirt portion 30s (front side band member 30) in the natural state is the lower end position of the diaper 1 in the height direction (a position corresponding to the substantially central portion C10 in the longitudinal direction of the absorbent main body 10). Is on the upper side. That is, as shown in FIG. 1 and FIG. 5, in the diaper 1 in a natural state, the absorbent main body 10 is not completely covered by the front skirt portion 30s, but at least one crotch portion of the absorbent main body 10 is provided. The part is exposed. And since the crotch part of the absorptive main body 10 is exposed, the user (wearer) can visually recognize at least one part of the leg periphery opening 1HL. Thereby, when wearing the diaper 1, it becomes easy to confirm the position of the leg periphery opening 1HL, and when passing a wearer's leg through the leg periphery opening 1HL, it can suppress that a leg gets caught.
the leg periphery elastic member 17 (and leg periphery auxiliary
the leg-surround elastic member 17 expresses a force that causes the absorbent main body 10 to contract along the longitudinal direction (that is, the longitudinal direction).
a force is applied to pull the front skirt portion 30s upward in the vertical direction.
the front skirt portion 30 s is pulled downward in the vertical direction via the front joint portion 51 due to the contraction force of the leg-around elastic member 17.
the contraction force by the leg elastic member 17 acts as a reaction force of the force that lifts the front skirt portion 30s upward, and the force pulling the front skirt portion 30s upward is easily offset. Thereby, it is possible to easily prevent the front skirt portion 30s from curling.
FIG. 8 is a diagram for explaining a relationship among the front side joint portion 51 and the rear side joint portion 52, the side edge joint portion 30ew, and the side edge joint portion 40ew in a modification of the diaper 1.
FIG. 9 is a plan view illustrating a state in which a part of the front skirt portion 30 s is rolled up in a modification of the diaper 1.
the position of the lower end 51eb of the front joint 51 is higher than the position of the lower end 30ewb of the side edge joint 30ew in the vertical direction.
it is substantially the same as the diaper 1 mentioned above.
FIG. 9 shows a state in which the left end of the front skirt portion 30s is rolled up. Then, the curl of the front skirt portion 30s propagates from the left side in the lateral direction to the right side so as to be pulled up by the left side end that has been curled up.
the material of the exterior sheet 15b, the front belt member 30, and the rear belt member 40 is a non-woven fabric, but is not limited to a non-woven fabric.
a woven fabric or a sheet member other than the woven fabric may be used.
the exterior sheet 15b may be omitted, and in that case, the leak-proof sheet 15a forms the exterior of the absorbent main body 10.
the rubber thread is exemplified as the elastic member 35.
the elastic member 35 is not limited to this.
a belt-like rubber may be used as the elastic member 35, a belt-like non-woven fabric having elasticity or a belt-like resin film having elasticity.
1 diapers (disposable diapers with skirts, absorbent articles), 1HB waist opening, 1HL leg opening, 10 Absorbent body, 10ea end, 10eb end, 10es end, 10p part, 11 Absorbent core, 11a ventral end, 11b dorsal end, 11c constriction, 13 Surface sheet member, 15 Back sheet member, 15a leakage prevention sheet, 15b exterior sheet, 15bf part, 17 leg elastic member, 18 LSG elastic member, 19 leg auxiliary elastic member, 30 front band member, 30ea upper end, 30eb lower end, 30 ew side edge joint, 30 ewb lower end, 30s front skirt, 30sebs end point, 31 non-woven fabric, 32 non-woven fabric, 32f front folded portion, 32feb lower end, 35 elastic member, 35b elastic member, 37 joint, 38 sheet member, 40 rear belt member, 40ea upper end, 40eb lower end, 40 ew side edge joint, 40 ewb lower end, 40s Rear skirt, 41 non-woven

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Health & Medical Sciences (AREA)
Epidemiology (AREA)
Engineering & Computer Science (AREA)
Biomedical Technology (AREA)
Heart & Thoracic Surgery (AREA)
Vascular Medicine (AREA)
Life Sciences & Earth Sciences (AREA)
Animal Behavior & Ethology (AREA)
General Health & Medical Sciences (AREA)
Public Health (AREA)
Veterinary Medicine (AREA)
Absorbent Articles And Supports Therefor (AREA)

PCT/JP2018/019506 2017-05-31 2018-05-21 スカート付き使い捨ておむつ WO2018221297A1 (ja)

Priority Applications (1)

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CN201890000111.4U CN209122656U (zh)	2017-05-31	2018-05-21	带裙围的一次性尿布

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JP2017-108188		2017-05-31
JP2017108188A JP6461237B2 (ja)	2017-05-31	2017-05-31	スカート付き使い捨ておむつ

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CN (1)	CN209122656U (zh)
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH10503686A (ja) *	1994-07-29	1998-04-07	キンバリークラークコーポレイション	使い捨て水着
JP2009179911A (ja) *	2008-01-31	2009-08-13	Daio Paper Corp	スカート付使い捨て水着
JP2011030790A (ja) *	2009-07-31	2011-02-17	Daio Paper Corp	スカート付使い捨ておむつ
JP2013094422A (ja) *	2011-10-31	2013-05-20	Unicharm Corp	使い捨て着用物品

2017
- 2017-05-31 JP JP2017108188A patent/JP6461237B2/ja active Active
2018
- 2018-02-23 TW TW107202542U patent/TWM572212U/zh not_active IP Right Cessation
- 2018-05-21 WO PCT/JP2018/019506 patent/WO2018221297A1/ja active Application Filing
- 2018-05-21 CN CN201890000111.4U patent/CN209122656U/zh active Active

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH10503686A (ja) *	1994-07-29	1998-04-07	キンバリークラークコーポレイション	使い捨て水着
JP2009179911A (ja) *	2008-01-31	2009-08-13	Daio Paper Corp	スカート付使い捨て水着
JP2011030790A (ja) *	2009-07-31	2011-02-17	Daio Paper Corp	スカート付使い捨ておむつ
JP2013094422A (ja) *	2011-10-31	2013-05-20	Unicharm Corp	使い捨て着用物品

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