WO2019003526A1 - Article absorbant - Google Patents

Article absorbant Download PDF

Info

Publication number
WO2019003526A1
WO2019003526A1 PCT/JP2018/012158 JP2018012158W WO2019003526A1 WO 2019003526 A1 WO2019003526 A1 WO 2019003526A1 JP 2018012158 W JP2018012158 W JP 2018012158W WO 2019003526 A1 WO2019003526 A1 WO 2019003526A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
width direction
cover sheet
absorbent article
longitudinal direction
Prior art date
Application number
PCT/JP2018/012158
Other languages
English (en)
Japanese (ja)
Inventor
温樹 戸田
隆将 村井
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.)
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 WO2019003526A1 publication Critical patent/WO2019003526A1/fr

Links

Images

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
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • 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
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices

Definitions

  • the present invention relates to absorbent articles such as urine absorbing pads and disposable diapers, and more particularly to an absorbent article which is less likely to cause skin diseases such as freshness and sores on the skin of a wearer.
  • an outer sheet an absorber provided on the body side of the outer sheet, an inner sheet provided on the body side of the absorber, and an inner sheet provided on the left side of the pad
  • a disposable urine absorption pad with a wrinkle prevention function in which the right and left edges of the wrap sheet are joined to the left side of the right side sheet and the right side of the left side sheet, respectively.
  • the disposable urine absorption pad disclosed in Patent Document 1 can be manufactured at low cost, and the overlap sheet is easy to move in the front-rear direction relative to the inner sheet, thereby preventing the occurrence and deterioration of wrinkles It is considered to have a function. Furthermore, this patent document 1 also discloses using, as the above-mentioned overlap sheet, a sheet that can expand and contract at least in the back and forth direction of the urine absorbing pad, and by using such an expandable sheet, a bed can be obtained. Because the overlap sheet can move along with the buttocks even when the buttocks of the wearer shift forward while using a wheelchair or during wheelchair use, it is believed that the occurrence or deterioration of wrinkles can be prevented. .
  • absorbent articles such as urine absorbing pads can be used over a long period of time while dealing with various position changes of the wearer, such as when raising a bed or using a wheelchair, turning over while sleeping, etc. Since it is used, as in the urine absorption pad disclosed in Patent Document 1, a stretchable sheet (cover sheet) can be used as a stretchable sheet (cover sheet) only by changing the position of the above-mentioned wearer, etc.
  • the cover is applied by the force (displacement force) applied toward the rear side in the longitudinal direction of the absorbent article in a state in which the wearer's body pressure is applied.
  • the stretchable part of the sheet (generally, the part having such stretchability is lowered in strength by being provided with a structure that expresses stretchability ), But because a plurality of folds gather and become contracted in the longitudinal direction, the state is repeatedly maintained by the shift force applied repeatedly, and it becomes difficult to restore the original state, so the intended function of the cover sheet (That is, the function of moving the cover sheet in accordance with the movement of the wearer's buttocks to make it difficult to give physical irritation to the wearer's skin due to friction or displacement) is not sufficiently exerted, and as a result, There is a risk of causing discomfort to the wearer or causing the occurrence or deterioration of skin diseases such as wrinkles in the vicinity of the buttocks (specifically, in the vicinity of the sacrum) of the wearer.
  • the present invention provides an absorbent article which is less likely to cause the wearer to feel discomfort even when the shift force is repeatedly applied over a long period of time, and less likely to cause the occurrence or deterioration of skin diseases such as wrinkles.
  • the purpose is to
  • One aspect (embodiment 1) of the present invention has a longitudinal direction, a width direction, and a thickness direction, and in the longitudinal direction, has a front area, a rear area, and a central area located between the two areas.
  • An absorbent article wherein the absorbent article is a main portion having a liquid-permeable top sheet, and a portion which is located on the skin-facing surface side of the top sheet at least in the rear region and relative to the main portion.
  • a cover sheet joined at least in the longitudinal direction, the cover sheet having at least the stretchable extension area in the longitudinal direction, and one or more strength retaining portions extending in the longitudinal direction in the stretch area. It is the above-mentioned absorptive article.
  • the absorbent article of this aspect 1 has one or more strength holding portions extending in the longitudinal direction in the extension region of the cover sheet, when the absorbent article is subjected to a longitudinal displacement force.
  • the extension region of the cover sheet is unlikely to be in a state where the plurality of folds gather and contract in the longitudinal direction, and temporarily the offset region of the cover sheet is temporarily described above by the shift force being repeatedly applied over a long period of time. Even in the state of being contracted in the longitudinal direction, it is easy to restore the original state by the strength (stiffness) of the strength holding portion.
  • the desired function of the cover sheet (that is, the cover sheet is a function of the wearer) not only when the shift force is applied singly but also when the shift force is repeatedly applied over a long period of time
  • the ability to move or stretch in accordance with the movement of the buttocks to sufficiently exert the physical stimulation of the wearer's skin due to friction or displacement force) can be sufficiently exhibited, resulting in discomfort to the wearer Can be difficult to cause, and it can be difficult to cause the onset or deterioration of skin diseases such as wrinkles.
  • the “excretory fluid” to be absorbed by the absorbent article is not particularly limited as long as it can be absorbed and held by the absorber described later, and for example, liquids such as urine, sweat, and blood In addition to things, it also includes low-viscosity substances such as loose stools.
  • the cover sheet in the absorbent article of the above aspect 1, is a side non-elongation extending in the longitudinal direction at each of both end portions in the width direction. It has a region and is joined to the main part in the side non-elongating region.
  • the cover sheet is formed by the non-elongational region in the peripheral portion of the joint portion between the cover sheet and the main portion where stress is easily concentrated when a shift force is applied in the longitudinal direction. Since a certain strength is secured, the cover sheet is less likely to be broken even when the shift force is repeatedly applied over a long time, and the above-mentioned function of the cover sheet can be exhibited more stably. As a result, the absorbent article of this embodiment has the above-mentioned effects (that is, an effect that it is difficult for the wearer to feel discomfort, and is less likely to cause the occurrence or deterioration of skin diseases such as wrinkles), It can be played more stably over a longer period of time.
  • the strength maintaining portion is at least one end of the extension region at both ends in the width direction.
  • the concave portion having a recess on the side opposite to the non-skin facing side in the longitudinal direction and the recess extending continuously in the width direction has a concavo-convex structure arranged to be alternately repeated in the longitudinal direction, and further, the ridge portion
  • a first convex strip portion having a long width direction length and in contact with the width direction edge of the extension area, and a second convex strip portion having a short width direction length and not contacting the width direction end edge of the extension area
  • the cover sheet has the first protrusion in a plan view.
  • the extension region of the cover sheet has the above-mentioned specific concavo-convex structure
  • the cover sheet is a part of the above-mentioned specific concavo-convex structure (that is, the width direction outward of the first convex streak portion Since it is joined to the main part in a specific area including the side end)
  • the above-mentioned first ridges ensure that the extension area of the cover sheet is as wide as possible in the width direction.
  • the end-portion-side extending portion is formed by the first groove and the second ridge, the concave groove It is disposed so as to be alternately repeated in the longitudinal direction.
  • the absorbent article of the fourth aspect is disposed such that the first ridges and the second ridges alternately repeat in the longitudinal direction via the concave groove in the end side extension of the cover sheet described above. Because of this, the portion between the widthwise outer end of the above-mentioned second ridge and the joint (that is, concentration of stress when a shift force is applied in the longitudinal direction of the absorbent article) In the peripheral portion of the joint between the easy cover sheet and the main part, a portion capable of securing a certain strength) is formed at regular intervals along the longitudinal direction of the cover sheet, and resists the above-mentioned shift force. The strength can be secured more stably along the longitudinal direction of the cover sheet.
  • the strength retaining portion is a front side edge to a rear side edge in the longitudinal direction of the extension area. Extends up to
  • the strength holding portion of the cover sheet extends from the front side edge to the rear side edge in the longitudinal direction of the extension region, the function of the above-described strength holding portion (ie, absorption)
  • the extension region of the cover sheet is less likely to be in a state in which a plurality of folds gather and contract in the longitudinal direction, temporarily assuming that the displacement force is repeatedly applied for a long time
  • the function of facilitating restoration to the original state can be exhibited over the entire region in the longitudinal direction in the extension region.
  • the absorbent article in the absorbent article according to any one of the above-mentioned aspects 1 to 5, is positioned between the top sheet and the cover sheet in the thickness direction.
  • the cover sheet is a front non-elongation located on the front side of the front side edge in the longitudinal direction of the low friction member in plan view and extending in the width direction It has an area.
  • the absorbent article of the sixth aspect further includes a low friction member located between the top sheet and the cover sheet (that is, located on the non-skin facing surface side of the cover sheet), the low friction member intervenes.
  • the absorbent article of this aspect has a non-stretched region (forward non-stretched region) extending in the width direction in a portion on the front side of a portion where the cover sheet overlaps the low friction member in the thickness direction. Therefore, the front side portion of the cover sheet can secure a certain strength against the displacement force described above, and the cover sheet may be shrunk or torn in the longitudinal direction as described above. It is even more difficult to occur.
  • the absorbent article in the absorbent article according to any one of the above-mentioned aspects 1 to 6, comprises each of both ends in the width direction of the cover sheet and the thickness direction And a pair of side joints joining the cover sheet and the main portion, and each of the pair of side joints is an outer side in the width direction.
  • a first joint portion extending in the longitudinal direction and a second joint portion located inward in the width direction and extending in the longitudinal direction, the first joint portion
  • the front side edge of the cover overlaps with the front side edge of the cover sheet in the thickness direction, while the front side edge of the second joint portion is more rearward than the front side edge of the cover sheet positioned.
  • the cover sheet since the cover sheet is joined to the main part by the pair of side joint parts in the specific form, a shift force is exerted in the longitudinal direction of the absorbent article in the cover sheet.
  • the front side portion of the second joint which is the portion where stress is most likely to concentrate, is not joined to the main portion, so that the stress applied to the front side portion is dissipated (dispersed in other portions).
  • the sheet can be made more difficult to tear, and furthermore, the cover sheet can be fixed to the main part more steadily by the first joint located on the outer side in the width direction than the above-mentioned second joint. .
  • the absorbent article of this aspect can exhibit the function of the above-mentioned cover sheet stably over a longer time.
  • the main part extends in the longitudinal direction at both ends in the width direction and the skin facing surface side of the surface sheet
  • Each of the pair of side sheets and both end portions in the width direction of the cover sheet are respectively joined by the pair of side side joint portions,
  • Each of the pair of side sheets and both end portions of the surface sheet in the width direction are joined by an outer side joining portion which is separated by a predetermined distance on the outer side in the width direction than the pair of side side joining portions. It is done.
  • each of the pair of side sheets is joined to the cover sheet and the surface sheet, and the lateral side which is a joint between each of the pair of side sheets and the cover sheet. Since the bonding portion and the outer bonding portion which is a bonding portion between each of the pair of side sheets and the surface sheet are separated from each other, the separated portions (that is, the side bonding portion and the outer side) Due to the presence of the portion between the side joints, the region (hereinafter sometimes referred to as "the movement margin of the cover sheet”) which can allow movement or extension of the cover sheet in the longitudinal direction is ensured.
  • the cover sheet can be displaced to float off the top sheet as the pair of side sheets are erected.
  • the absorbent article of this aspect is the shift force at the portion between the side-side joining portion and the outside-side joining portion of the pair of side sheets. While relaxing, the cover sheet can be moved and stretched smoothly and reliably in accordance with the movement of the buttocks of the wearer.
  • the cover sheet in the absorbent article according to any one of the aspects 1 to 8, has the rear end at the rear end extending in the width direction.
  • the cover sheet has a width direction first area, a width direction central area, and a width direction second area that divides the width into three equally in the width direction, and the cover sheet is formed in the width direction first area and the width direction second area. While being joined to the surface sheet, in the central region in the width direction, only or only a part of the surface sheet is joined to the surface sheet.
  • the movement margin of the cover sheet is sufficiently secured in the central region in the width direction.
  • the movement of the cover sheet can be restricted within a predetermined range so that the cover sheet does not move or extend excessively in the longitudinal direction.
  • the absorbent article in the absorbent article according to any one of the above-mentioned aspects 1 to 9, the absorbent article extends in the longitudinal direction for folding the absorbent article in the width direction. At least one folding line is provided, and the strength retaining portion overlaps the folding line.
  • the cover sheet since the strength holding portion of the cover sheet overlaps the folding line for folding the absorbent article in the width direction, the above-mentioned strength holding portion is provided with a fold extending in the longitudinal direction. Therefore, the cover sheet can be made more difficult to be wrinkled.
  • the main portion is the non-skin facing surface side of the top sheet from the front area to the back area.
  • the absorbent body extending to the skin-facing surface side of the absorbent body, the absorbent article is positioned at the center in the longitudinal direction of the absorbent article and further to the rear than the longitudinal central axis extending in the width direction; And an absorbent sheet extending so as to straddle the longitudinal front end edge of the cover sheet in the longitudinal direction.
  • the absorbent article of this aspect 11 further includes the absorbent sheet disposed at the above-mentioned specific position in addition to the absorbent body, the absorbent article is obtained even when waste fluid is repeatedly supplied from the wearer.
  • the waste fluid flowing toward the rear in the longitudinal direction can be absorbed stepwise by the absorber and the absorbent sheet.
  • the absorbent article of this aspect can prevent the buttocks of the wearer from getting wet by the excretory fluid, and further, the cover sheet can be prevented from becoming wet by the excretory fluid and the strength is reduced. Can be exhibited for a longer time.
  • FIG. 1 is a plan view of the urine absorption pad according to an embodiment of the present invention as viewed in the thickness direction from the top sheet side in a developed state.
  • FIG. 2 is a cross-sectional view of a cross section taken along the line II-II of FIG. 1 in the urine absorption pad according to one embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of a cross section taken along line III-III of FIG. 1 in the urine absorption pad according to one embodiment of the present invention.
  • FIG. 4 is a plan view of a cover sheet used in the urine absorption pad according to the embodiment of the present invention.
  • FIG. 5 is an enlarged plan view of an essential part of the cover sheet shown in FIG.
  • FIG. 6 is a cross-sectional view of a cross section taken along line VI-VI of the cover sheet shown in FIG. 7 is a cross-sectional view of a cross section taken along line VII-VII of the cover sheet shown in FIG.
  • FIG. 8 is a plan view of a modification of the cover sheet.
  • Fig.9 (a) is explanatory drawing which shows typically the state (state in which the shift force is not applied) immediately after a wearer wears the urine absorption pad which concerns on one Embodiment of this invention, and FIG. ) Is an explanatory view schematically showing a state in which a displacement force is applied to the urine absorption pad from that state.
  • an object for example, an absorbent article, a surface sheet, a cover sheet, an absorber, a low friction member, etc. placed on a horizontal surface in a developed state is vertically Viewing in the thickness direction of the object from the upper side of the direction (the surface sheet side if the object is an absorbent article) is simply referred to as “plan view”.
  • longitudinal direction refers to “long direction of the length of a vertically long object (for example, an absorbent article, an absorbent body, etc.) in plan view”
  • width direction refers to “in plan view”
  • Leth direction refers to "the direction perpendicular to the object placed on the horizontal plane in the unfolded state”
  • the direction, width direction and thickness direction are in a mutually orthogonal relationship.
  • planar direction is the direction in which the plane of “a substantially sheet-like object (for example, an absorbent article, a surface sheet, an absorber, a low friction member, a cover sheet, etc. That is, the horizontal direction is referred to as “horizontal direction”, and the plane direction and the thickness direction are in a relation orthogonal to each other.
  • proximal to the longitudinal central axis CW located longitudinally in the longitudinal direction of the longitudinal object and extending in the width direction “Longitudinal inner side” or “longitudinal inner side” “longitudinal direction relative to the longitudinal central axis CW in the longitudinal direction of the longitudinally elongated object” “Outward side” or “longitudinal outward side”.
  • width direction proximal to the width direction central axis line L located at the center in the width direction of the object in the width direction of the longitudinally elongated object and extending in the longitudinal direction
  • width direction proximal to the width direction central axis line L located at the center in the width direction of the object in the width direction of the longitudinally elongated object and extending in the longitudinal direction
  • width direction proximal to the width direction central axis line L located at the center in the width direction of the object in the width direction of the longitudinally elongated object and extending in the longitudinal direction
  • the proximal side relative to the skin surface of the wearer when wearing the absorbent article in the thickness direction of the absorbent article is “skin-facing surface It is called “side”, and “the distal side relative to the skin surface of the wearer when wearing the absorbent article” is referred to as “non-skin facing surface side”.
  • “at the time of wearing” means (while wearing) while maintaining the state from the time when the wearer wears the absorbent article (that is, when the usable state is formed). means.
  • the “skin facing surface side” and “non-skin facing surface side” of various members constituting the absorbent article
  • the surface may be simply referred to as “skin facing surface” and “non-skin facing surface”, respectively.
  • FIG. 1 is a plan view of the urine absorption pad 1 (absorbent article) according to an embodiment of the present invention as viewed in the thickness direction T from the top sheet side in the unfolded state
  • FIG. 2 and FIG. FIG. 2 is a cross-sectional view of the urine absorption pad 1 taken along line II-II and line III-III in FIG. 4
  • FIG. 5 is an enlarged plan view of the main part of the cover sheet 3 shown in FIG. 6 and 7 are cross-sectional views of the cover sheet 3 taken along the lines VI-VI and VII-VII of FIG. 5, respectively.
  • the urine absorption pad 1 has a longitudinally long external shape having a longitudinal direction L and a width direction W in a plan view, and further, substantially in the longitudinal direction L
  • the central portion has a substantially sandglass-like outer shape narrowed toward the inner side in the width direction W.
  • the outer shape of the absorbent article is not limited to such, and various uses as long as the length dimension in the longitudinal direction L is longer than the width dimension in the width direction W
  • Arbitrary shapes e.g., rectangular, oval, wedge, etc.
  • the urine absorption pad 1 has, in the longitudinal direction L, a front area AF corresponding to the abdomen (more specifically, the lower abdomen) of the wearer when worn, and when worn (more specifically, the crotch) crotch of the wearer and the central region a C corresponding to (more specifically, buttocks) back of a wearer and a rear region a B corresponding to, the Have in order.
  • proximal to the wearer's abdomen when wearing the absorbent article is referred to as "front side”
  • “wearing the absorbent article” Sometimes "proximal side relative to the back of the wearer” is referred to as "rear side”.
  • the urine absorbing pad 1 has a liquid permeable top sheet 21 positioned on the skin facing surface side S1 of the urine absorbing pad 1 in the thickness direction T, and the surface sheet 21. and absorbent of the absorbent body 22 is located in the non-skin facing side S 2, a back sheet 23 positioned in the non-skin-facing side S 2 of the absorbent body 22, both end portions in the width direction W of the urine absorbing pad 1 Pair of side sheets located on the skin facing surface side S 1 of the surface sheet 21 (specifically, the side sheet 24 disposed at one end in the width direction W and the other end in the width direction W a side sheet 25) disposed on a liquid-impermeable barrier sheet 26 located between the absorbent body 22 and backsheet 23, a main unit 2 which includes a further topsheet 21 in the rear area a B sheet of a low friction located skin facing side S 1 A member 4, the rear region A and the cover sheet 3 located on the skin facing side S 1 of the low-friction member 4 at B, the
  • the pair of side sheets 24 and 25 described above has respective end portions on the inward side in the width direction W when wearing the urine absorbing pad 1 (that is, the width of the side sheet 24 Direction inner side end 24R and width direction inner side end 25L of side sheet 25 are erected by contraction of elastic member 27 such as rubber thread provided at the end, and leakage of waste fluid such as urine
  • the leak-proof wall part 28 for preventing can be formed.
  • Urine absorbing pad 1 of this embodiment in the rear region A B corresponding to the buttock skin disease prone wearer such pressure ulcers and rash, low-friction member located on the skin facing side S 1 of the topsheet 21 4 and a cover sheet 3 located on the skin-facing surface side of the low friction member 4 and partially joined to the main part 2, and the cover sheet 3 is shown in FIG.
  • the cover sheet 3 is joined to the pair of side sheets 24 and 25 of the above-mentioned main part 2 at both end portions 3E L and 3E R in the width direction W, and the front sheet is accompanied with the standing of the pair of side sheets 24 and 25. 21 and the low friction member 4 so as to be separated from the skin-facing surface.
  • the friction resistance is reduced between the cover sheet 3 and the surface sheet 21 due to the presence of the low friction member 4 and the floating of the cover sheet 3. It is easy to move in the surface direction relative to 21.
  • the cover sheet 3 has the extending
  • a plurality of strength holding portions 31 extending to L are provided.
  • the extension region 32 is a convex that protrudes toward the skin facing surface side S 1 in the thickness direction T of the urine absorption pad 1 and extends continuously in the direction along the width direction W of the urine absorption pad 1 as described later.
  • the urine Gear forming process is applied to the non-woven fabric to be the base material of the cover sheet 3 including an extension portion having a concavo-convex structure arranged so as to be alternately repeated along the longitudinal direction L of the pad 1.
  • the strength is relatively low because the On the other hand, strength holding portion 31 is compressed in the thickness direction T or is not subjected to gear shaping or the like, and therefore has strength (stiffness) greater than the strength of the nonwoven fabric to be the base material of cover sheet 3.
  • FIG. 9 (a) explanation view schematically showing a urine absorbing pad 1 of this embodiment wearer immediately after (not shown) worn state (not takes deviated force F Z)
  • FIG. 9B is an explanatory view schematically showing a state in which the shift force FZ is applied to the urine absorption pad 1 from that state.
  • the cover sheet 3 since the cover sheet 3 has the extension region 32 which can be extended in the longitudinal direction L, the extension region 32 has the shape of the skin surface of the wearer (body Can closely follow the shape). Therefore, even if the wearer moves while wearing the urine absorbing pad 1, the above-mentioned cover sheet 3 accurately moves or extends in the surface direction with the wearer's skin in accordance with the movement of the wearer's buttocks. It is difficult to give physical stimulation to the wearer's skin due to friction or displacement force.
  • the urine absorbing pad 1 has the strength holding portion 31 extending in the longitudinal direction L in the extension region 32 of the cover sheet 3, the urine absorbing pad 1 is subjected to a shift force in the longitudinal direction L. If the extension region 32 of the cover sheet 3, on the strength maintaining portion 31 is less likely to state contracted in the longitudinal direction L and huddled plurality of wrinkles W R as shown in FIG. 9 (b), if, Even when the extension area 32 of the cover sheet 3 is contracted in the longitudinal direction L as described above, it is easy to restore the original state as shown in FIG. It has become.
  • the urine absorbing pad 1 functions as described above for the cover sheet 3 (that is, the cover sheet 3 moves according to the movement of the wearer's buttocks) It is possible to sufficiently exert the function of making it hard to give physical irritation due to friction or displacement force to the skin of the wearer), and as a result, it is difficult for the wearer to feel discomfort, wrinkles, etc. It can be made difficult to cause the onset or deterioration of skin diseases.
  • the main portion 2 is, as shown in FIGS. 1 to 3, a liquid permeable top sheet 21 located on the skin facing surface side S 1 of the urine absorption pad 1; and absorbent of the absorbent body 22 is located in the non-skin facing side S 2 of the top sheet 21, back sheet 23 located in the non-skin-facing side S 2 of the absorbent body 22, the width of the urine absorbing pad 1 a pair of side sheets 24, 25 positioned on the skin facing side S 1 of the topsheet 21 at both ends of the direction W, the absorber 22 and liquid-impermeable barrier sheet 26 positioned between the backsheet 23 , Is included as a basic configuration.
  • both end portions in the width direction refer to “end portions on one side and the other end in the width direction of an object (for example, an absorbent article, main portion, cover sheet, etc.)”
  • the end in the width direction includes “the end in the width direction of the object (the edge located on the outermost side in the width direction) and is the inner side in the width direction from the end (Ie, a portion where the length in the width direction is within 15% of the entire length in the width direction).
  • end portions in other directions for example, end portions in the longitudinal direction.
  • the above-mentioned principal part is a portion which holds basic functions (namely, absorption performance etc.) of an absorptive article, and the constituent elements differ according to the kind of absorptive article. Therefore, for example, when the top sheet has a predetermined absorption performance, the main part may not include the absorber, or when the leakage prevention performance is ensured, the main part. The part may not include the side sheet.
  • the top sheet 21 has a portion overlapping the cover sheet 3 and the low friction member 4 in the thickness direction T. It is disposed at a position where it can be in direct contact with the skin (that is, at the position on the skin facing surface side S 1 of the urine absorption pad 1), and is constituted by a liquid permeable sheet through which excrement fluid discharged from the wearer can permeate ing.
  • Topsheet 21 as shown in FIGS. 1 to 3, in plan view, the longitudinal direction L and a width to cover substantially the entire absorbent body 22 disposed on the non-skin facing side S 2 of the topsheet 21 It extends in the direction W, and has a longitudinally elongated substantially rectangular outer shape which is long in the direction along the longitudinal direction L of the urine absorbing pad 1.
  • the outer shape of the top sheet is not limited to such an aspect, and the surface of the absorbent body facing the skin can be covered so as not to be exposed at least in the central region. If it exists, the thing of arbitrary external shape and size according to various uses etc. is employable.
  • the liquid-permeable sheet that can be used as the surface sheet is not particularly limited as long as it has predetermined liquid permeability, touch, etc.
  • cellulose-based fibers or thermoplastic resin fibers subjected to hydrophilization treatment Any non-woven fabric such as a spun-bonded non-woven fabric, an air-through non-woven fabric, an SMS non-woven fabric, or the like formed using E.I.
  • the basis weight and thickness of the liquid-permeable sheet (nonwoven fabric etc.) that can be used as the surface sheet are not particularly limited as long as the effects of the present invention are not impaired, and any basis weight considering the desired liquid permeability and touch etc. And although a thickness can be adopted, it is preferable to use a relatively thick liquid-permeable sheet as the surface sheet, from the viewpoint that the liquid return of the excrement fluid is less likely to occur.
  • the structure of the surface sheet is not particularly limited as long as it has predetermined liquid permeability, touch, etc., and it is possible to form ridges even in a generally flat structure such as a general non-woven fabric.
  • it may have an arbitrary concavo-convex structure such as a structure, it is preferable to use a top sheet having a concavo-convex structure such as a furrow structure from the viewpoint of making it difficult to cause the occurrence or deterioration of skin diseases such as wrinkles. preferable.
  • a concavo-convex structure for example, a ridge which protrudes toward the skin facing surface side in the thickness direction of the absorbent article and extends continuously in the direction along the longitudinal direction of the absorbent article, and the thickness of the absorbent article Grooves arranged so as to be alternately repeated along the width direction of the absorbent article with grooves extending toward the non-skin facing surface side in the longitudinal direction and extending continuously in the direction along the longitudinal direction of the absorbent article Structure etc. are mentioned.
  • the contact area between the surface sheet and the skin of the wearer or the cover sheet can be reduced, so the cover sheet is easily moved or stretched, and
  • the excretory fluid absorbed by the absorbent body or its moisture comes in contact with the skin of the wearer, causing the wearer to perceive a wet or steamed state, or the skin of the wearer becomes wet. Things can be less likely to occur.
  • the extension direction of the ridge part and groove part in the above-mentioned ridge groove structure is not specifically limited,
  • the ridge part and groove part may be extended along arbitrary directions, such as the width direction of an absorbent article.
  • the internal structure of the ridge portion is not particularly limited either, and the ridge portion has a hollow internal structure (that is, a structure in which the cross-sectional structure along the direction orthogonal to the extending direction of the ridge portion is substantially corrugated) Also, it may have a solid internal structure.
  • the method for applying the above-described concavo-convex structure to the surface sheet is not particularly limited, and, for example, a method of continuously blowing a gas (for example, air etc.) to the fiber web, an optional application such as a compression molding method A shape method can be adopted.
  • a gas for example, air etc.
  • the surface sheet is bonded to the non-skin facing surface of the pair of side sheets located on the skin facing surface side, or even bonded to the skin facing surface or the non-skin facing surface of the absorber. , It may be joined with the skin opposing surface of a leak-barrier sheet or a back surface sheet.
  • the bonding method is also not particularly limited, and any bonding means such as a hot melt adhesive or heat fusion may be employed.
  • the absorbent 22 is a top sheet 21 and a back surface sheet 23 in the thickness direction T of the urine absorption pad 1 (more specifically , And the leak-barrier sheet 26), and is composed of an absorbent member that absorbs and holds the excretory fluid of the wearer who has permeated the top sheet 21.
  • Absorber 22 in plan view, (specifically, the longitudinal direction L front edge 1A vicinity of) the front region A F in the urine absorbing pad 1 from the rear area A B (specifically Specifically, it extends over the rear side edge 1B in the longitudinal direction L), and extends from the vicinity of one side edge in the width direction W of the urine absorbing pad 1 to the vicinity of the other side edge in the width direction W And has a substantially hourglass-like outer shape in which a substantially central portion in the longitudinal direction L is narrowed toward the inward side in the width direction W while being formed long in the direction along the longitudinal direction L of the urine absorbing pad 1 doing.
  • the outer shape of the absorber is not limited to such an aspect, and it may have an arbitrary outer shape such as a rectangular shape or an oval shape as long as it can exhibit a predetermined absorption performance. It may be
  • the position in plan view where the absorber is disposed includes a central portion of the absorbent article comprising an intersection of the longitudinal center axis C W extending in the longitudinal direction widthwise central axis extending in the L C L and the width direction W
  • the position is not particularly limited as long as the position is fixed, and for example, the absorber may be arranged to be biased to one side in the longitudinal direction of the absorbent article.
  • the absorbent member that can be used as an absorbent is not particularly limited as long as it can absorb and retain excrement fluid such as urine, and any absorbent member known in the art can be adopted.
  • As an example of such an absorptive member what covered the absorptive core constituted by the below-mentioned absorptive material with core wrap sheets, such as hydrophilic tissue, etc. are mentioned.
  • examples of the absorbent material constituting the absorbent core include hydrophilic fibers and highly absorbent polymers, and more specifically, cellulose fibers such as crushed pulp, cotton, rayon and acetate; acrylic There may be mentioned particulates composed of a superabsorbent polymer such as an acid sodium copolymer, and mixtures obtained by optionally combining these.
  • the absorber may be made of an absorbent member having a multilayer structure in which two or more absorption layers are stacked in the thickness direction.
  • each absorbent layer may be constituted by absorbent members of the same composition, or may be constituted by absorbent members of different compositions.
  • the outer shapes (the shapes in plan view) and the sizes of the respective absorption layers may be the same as or different from each other.
  • basis weight and thickness of the entire absorber are not particularly limited as long as the effects of the present invention are not impaired, and any basis weight and thickness in consideration of desired absorption performance, flexibility and the like can be adopted.
  • an absorbent sheet may be further provided to supplement the absorption performance of the absorber.
  • the absorbent sheet will be described later.
  • the back sheet which can be used for the absorbent article of this invention is demonstrated.
  • the backsheet 23 as shown in FIGS. 1 to 3 are arranged on the non-skin facing side S 2 in the thickness direction T of the urine absorbing pad 1,
  • a hydrophobic property that prevents permeation of excrement fluid such as urine excreted from the wearer while having a predetermined breathability, and prevents the excrement fluid from leaking out (for example, clothes of the wearer)
  • Non-woven or liquid impermeable sheet Non-woven or liquid impermeable sheet.
  • the back sheet 23 extends from the front side edge 1A in the longitudinal direction L to the rear side edge 1B in the urine absorption pad 1 in plan view as shown in FIGS. 1 to 3 and the urine absorption pad It extends from one side edge to the other side edge in the width direction W in 1 and has a substantially hourglass-like outer shape similar to the outer shape of the urine absorbing pad 1.
  • the outer shape of the back sheet is not limited to such an aspect, and the surface of the non-skin facing surface of the absorber disposed on the skin facing surface side of the back sheet is not exposed. For example, those having an arbitrary outer shape and size according to various applications can be adopted.
  • the hydrophobic nonwoven fabric that can be used as the back sheet is not particularly limited as long as it has predetermined hydrophobicity, air permeability, etc.
  • spunbonded nonwoven fabric point bonded nonwoven fabric, meltblown nonwoven fabric, SMS nonwoven fabric
  • Any hydrophobic non-woven fabric such as a non-woven fabric having a multilayer structure of three or more layers (for example, a five-layer structure etc.) including each non-woven fabric layer of bond layer / meltblown layer / spun bond layer can be used.
  • Such a hydrophobic non-woven fabric may not necessarily have liquid impermeability when the absorbent article is provided with a leak-barrier sheet between the back sheet and the absorbent, but in particular, the absorbent article is In the case where the leak-barrier sheet is not provided between the back sheet and the absorber, it is preferable to use one having liquid impermeability.
  • the constituent fibers of the hydrophobic non-woven fabric are not particularly limited, and, for example, polyolefin fibers such as polyethylene and polypropylene; polyester fibers such as polyethylene terephthalate; thermoplastic resin fibers such as various composite fibers such as core-sheath composite fibers Can be used.
  • the basis weight and thickness of the hydrophobic non-woven fabric are not particularly limited as long as the effects of the present invention are not impaired, and any basis weight and thickness considering air permeability etc. can be adopted.
  • the liquid impermeable sheet that can be used as the back sheet is not particularly limited as long as it has a predetermined liquid impermeability, and any liquid impervious such as a plastic film made of a thermoplastic resin such as polyethylene Sex sheet can be used. It is preferable to use such a liquid impermeable sheet having a liquid impermeability but having a certain air permeability (for example, a plastic film having a plurality of apertures).
  • the urine absorption pad 1 is provided with the liquid impervious leak-proof sheet 26 between the back surface sheet 23 and the absorber 22.
  • the leak-proof sheet 26 is made of a plastic film made of a thermoplastic resin such as polyethylene, and prevents permeation of excrement fluid such as urine excreted from the wearer, and the excrement fluid does not leak to the outside. Function in Although provision of such a leak-proof sheet is not an essential component in the absorbent article of the present invention, if the absorbent article is provided with a leak-proof sheet, leakage of excretory fluid such as urine is more effective. Can be suppressed.
  • the position at which the leakproof sheet is disposed is not particularly limited as long as the function of the leakproof sheet can be exhibited, and the leakproof sheet is an absorbent article as in the above embodiment. It may be arranged from the front area to the rear area, or may be arranged only in a specific area such as the central area.
  • the pair of side sheets 24 and 25 as shown in FIGS. 1 to 3, in skin-facing surface side S 1 of the topsheet 21, the width direction of the urine absorbing pad 1 It is comprised by the strip-shaped side sheet 24 arrange
  • the side sheet 24 on one side and the side sheet 25 on the other side extend from the front side edge 1A in the longitudinal direction L to the rear side edge 1B in the urine absorbing pad 1 in plan view as shown in FIG. While being present, as shown in FIG. 2, the width direction outer side end 24L of the side sheet 24 and the width direction outer side end 25R of the side sheet 25 which are located on the outer side in the width direction W.
  • the inward side end 24R and the widthwise inward side end 25L of the side sheet 25 are not joined to any members, and form a free end.
  • a pair of side sheets are one side end part (one side end 23L in the above-mentioned embodiment) and the other side of the width direction in a back sheet, respectively. It may be joined to the end (the other end 23R in the above embodiment).
  • each of the side sheet 24 on one side and the side sheet 25 on the other side in the width direction W is in the vicinity of the width direction inner side end portion 24R and the width as shown in FIGS.
  • Elastic members 27 for contracting the side sheet 24 and the side sheet 25 in the longitudinal direction L and raising the respective width direction inward end portions 24R, 25L in the vicinity of the inward side end 25L in the longitudinal direction are the longitudinal direction L Are arranged along the.
  • the contraction of the elastic member 27 raises the widthwise inner end portions 24R and 25L of the side sheet 24 and the side sheet 25 described above to prevent leakage of urine and other waste fluid in the width direction.
  • the leak wall portion 28 is formed.
  • the elastic member 27 in the present embodiment, as shown in FIG. 1, are disposed from the front region A F across a broad region extending rearward region A B in the longitudinal direction L of the urine absorbing pad 1, in the present invention
  • the arrangement form of the elastic member is not particularly limited.
  • the elastic members may be disposed over the entire length in the longitudinal direction of the pair of side sheets, or in the vicinity of the front side edge and in the vicinity of the rear side edge in the longitudinal direction of the pair of side sheets It may be arranged within a predetermined range except.
  • an elastic member is arrange
  • the expansion ratio at the time of attaching the elastic member to the pair of side sheets is not particularly limited as long as the cover sheet is not pulled too much and leakage of waste fluid is unlikely to occur.
  • the natural length is, for example, in the range of 1.3 to 3.0 times, preferably in the range of 1.5 to 2.5 times, and more preferably in the range of 1.7 to 2.3 times. is there.
  • one elastic member 27 is disposed at each of the widthwise inner end 24R of the side sheet 24 and the widthwise inner end 25L of the side sheet 25.
  • the present invention is not limited to such an arrangement mode, and two or more elastic members may be arranged on each of the pair of side sheets.
  • an elastic member thread rubber etc. which are generally used in absorbent articles, such as a urine absorption pad and a disposable diaper, can be used.
  • the pair of side sheets 24 and 25 is formed of a liquid impervious sheet having a longitudinally long strip-like outer shape long in the longitudinal direction L of the urine absorbing pad 1
  • the pair of side sheets is not limited to such an aspect, and a liquid impermeable sheet of any outer shape and size as long as it can form a predetermined leak-proof wall portion. Can be adopted.
  • the band-shaped liquid impermeable sheet that can be used as the side sheet is not particularly limited as long as it has predetermined liquid impermeability, flexibility, and the like, and, for example, a hydrophobic non-woven fabric (for example, hydrophobic or hydrophobic) , Spunbond non-woven fabric, point-bonded non-woven fabric, spunbond layer / meltblown layer / spunbond layer (SMS non-woven fabric, etc.), synthetic resin films having liquid impermeability, and laminates thereof
  • a liquid impermeable sheet can be used.
  • basis weight and thickness of a belt-like liquid impermeable sheet for example, hydrophobic non-woven fabric etc.
  • a side sheet are not particularly limited as long as the effects of the present invention are not impaired.
  • Arbitrary basis weight and thickness which considered nature etc. are employable.
  • the width direction of the absorbent article in particular Leakage of urine and other excrement fluid can be more effectively suppressed, and the cover sheet is joined in the plane direction relative to the top sheet as described above. It has the advantage of being easy to move.
  • the cover sheet 3 By arranging the cover sheet 3 in this manner, the frictional resistance between the cover sheet 3 and the surface sheet 21 can be further reduced, and the cover sheet 3 can be made in the surface direction relative to the surface sheet 21. It can be made easy to move.
  • the cover sheet 3 has a predetermined longitudinal length (for example, 150 mm to 250 mm) along the longitudinal direction L of the urine absorption pad 1 and a predetermined width along the width direction W of the urine absorption pad 1 in plan view. It has a substantially rectangular outer shape elongated in the longitudinal direction L and having a direction length (for example, 100 mm to 200 mm).
  • the outer shape of the cover sheet is not particularly limited as long as the effects of the present invention are not impaired, and any outer shape (for example, a circle, an ellipse, a polygon, etc.) can be adopted.
  • the material constituting the cover sheet is not particularly limited, and any sheet-like member such as, for example, non-woven fabric such as air through non-woven fabric or spun-bonded non-woven fabric;
  • the sheet-like member may be either hydrophilic or hydrophobic. Since the cover sheet used in the present invention can be in direct contact with the skin of the wearer, it is preferable to use a sheet-like member excellent in touch and flexibility among the above-mentioned sheet-like members.
  • nonwoven fabrics such as an air through nonwoven fabric and a spun bond nonwoven fabric, are mentioned, for example.
  • the sheet-like member which comprises a cover sheet has a preferable thing of the hydrophobicity from the point which makes it hard to wet a wearer's skin (specifically, skin of a buttocks).
  • a hydrophilic material as a sheet-like member which forms a cover sheet, since excretory fluid, such as urine, and its moisture can be permeated to a certain extent, between a wearer's skin and a cover sheet There is an advantage that the excretory fluid such as urine and the moisture thereof can be made less likely to be intoxicated.
  • the cover sheet is formed of a sheet-like member which can be extended in at least one direction (that is, the direction corresponding to the longitudinal direction of the absorbent article), and specifically, at least the absorbent article
  • a stretchable sheet having a stretchable extension area in a direction corresponding to the longitudinal direction of the sheet, and one or more strength holding parts extending in the direction corresponding to the longitudinal direction of the absorbent article in the stretch area It is formed of a member.
  • the cover sheet 3 has an extension area 32 which can be extended in the longitudinal direction L of the urine absorption pad 1, and the urine absorption pad 1 in the extension area 32.
  • the cover sheet is formed by such an extensible sheet-like member, the above-mentioned extension area can follow the wearer's body shape and can be closely adhered, so that the wearer wears the absorbent article. Even if it moves inside, the above-mentioned cover sheet can be accurately moved or extended in the surface direction together with the wearer's skin in accordance with the movement of the wearer's buttocks, friction against the wearer's skin, It can be made difficult to give physical stimulation by shift force etc.
  • the cover sheet has one or more strength holding portions extending in the longitudinal direction in the above-mentioned extension region, the above-mentioned cover sheet has the above-mentioned even when the longitudinal displacement force is applied to the absorbent article.
  • the extension region of the cover sheet is unlikely to be contracted in the longitudinal direction L as shown in FIG. 9 (b), and temporarily the extension region of the cover sheet is contracted in the longitudinal direction by the above-mentioned shift force repeatedly applied for a long time. Even in the case of the broken state, the original state as shown in FIG. 9A can be easily restored.
  • the absorbent article of the present invention is provided with such a specific stretchable cover sheet, so that the intended function of the cover sheet (ie, The cover sheet moves or extends in accordance with the movement of the wearer's buttocks, and the function of making it difficult to give physical irritation to the wearer's skin due to friction or displacement force can be sufficiently exhibited. It is difficult to cause the wearer to feel discomfort, and it is also difficult to cause the occurrence or deterioration of skin diseases such as wrinkles.
  • “extendable” refers to two predetermined directions opposite to each other according to the method described in “6.3 Tensile Strength and Elongation” of JIS L 1913: 2010 When stretched with a force of 5.0 N in the longitudinal direction, it stretches by 3% or more with respect to the length (100%) in the tensile direction of the object in its natural state (that is, the state before stretching) without breaking It means that (that is, it can be extended so that the length after tension is 103% or more).
  • the direction of extension in the extension region of the cover sheet is at least the other direction (for example, the direction corresponding to the width direction) as long as it extends in the direction corresponding to the longitudinal direction of the absorbent article. You may extend it. With the cover sheet extending in multiple directions, the cover sheet can more accurately follow the wearer's body shape.
  • the cover sheet shrinks after extension regardless of the presence or absence of contraction after extension. Even in the case of materials (in addition to those having elasticity due to elastic members etc., including those that expand and contract due to the external force caused by the movement of the wearer's buttocks), the external force due to the movement of the wearer's buttocks is not It may be such that it hardly shrinks.
  • the stretchable sheet-like member that can be used for the cover sheet is not particularly limited as long as it can stretch in at least one direction (longitudinal direction of the absorbent article), for example, continuous in the width direction of the absorbent article
  • Nonwoven fabric or woven or knitted fabric having a concavo-convex structure in which convex ridges and concave grooves extending alternately repeat in the longitudinal direction Nonwoven fabric or woven or knitted fabric having a concavo-convex structure in which convex ridges and concave grooves extending alternately repeat in the longitudinal direction; nonwoven fabric in which elastic members such as elastic fibers are disposed along the longitudinal direction of the absorbent article Or woven and knitted materials; and laminates obtained by combining these optionally can be suitably used.
  • the non-woven fabric having the above-described uneven structure is not only extensible in the region having the uneven structure, but also has a small contact area with the skin of the wearer and a small physical stimulus to the skin. It can use especially preferably
  • region 32 of the cover sheet 3 is two end side located in the both ends of the width direction W and extended to the longitudinal direction L, as shown to FIG. 4 and FIG. Located between the extension (specifically, one end-side extension 32L and the other end-side extension 32R in the width direction W) and these end-side extensions in the width direction W, and And includes six inward extending portions 32C extending in the longitudinal direction L, and seven strength retaining portions 31 aligned adjacent to the extending portions and extending in the longitudinal direction L. ing.
  • each of the 32R and the inner-side extension part 32C projects on the skin facing side S 1 in the thickness direction T of the urine absorbing pad 1 a convex portion 32A to the width direction W continuously extending, and groove portion 32B continuously extending and width direction W recess in the non-skin-facing side S 2 in the thickness direction T is repeated alternately in the longitudinal direction L It has a specific relief structure, which is arranged as such.
  • the distance between the ridges 32A aligned in the longitudinal direction L is not particularly limited, and an arbitrary interval (for example, according to desired extensibility or texture) , Intervals of 1 mm to 10 mm, etc.) can be adopted.
  • the ridges 32A have a relatively long width-direction length and width-direction end edges 32E L and 32E of the extension area 32.
  • Convex portions 32A and the width direction length of the groove portion 32B is not particularly limited, any length corresponding to the desired extensibility and feel like (for example, it is possible to adopt a length, etc.) in the range of 5 mm ⁇ 50 mm, further, the difference between the first ridge portion 32A 1 and the width direction length of the second ridge portion 32A 2 is not particularly limited, For example, it is in the range of 1 mm to 5 mm.
  • the specific form of the end-side extension 32R that is, the end 32A 1E on the widthwise outer side of the first protrusion 32A 1 is the width-direction end 32E R of the extension area 32.
  • the end 32A 2E on the widthwise outer side of the second ridge 32A 2 is positioned inward in the widthwise direction W than the widthwise end 32E R of the extension region 32. .
  • End side extension portion 32R of the extension region 32 is configured to have such specific first ridge portion 32A 1 and the second ridges 32A 2, the first ridge portion 32A of the above the 1, while still ensuring as much as possible wider extension region 32 of the cover sheet 3 in the width direction W, the end portion 32A 2E the width direction outer side of the second convex portion 32A 2 of the above-described elongation regions 32
  • the portion where the concavo-convex structure between the width direction end 32E R is not shaped hereinafter, sometimes referred to as "the non-shaped portion positioned on the width direction outer side of the second convex portion"
  • the end-side extension having such a specific first ridge and the second ridge may be disposed only at one end in the width direction of the extension region.
  • the other end is, like the inward extension, an end extension with a fixed length in the width direction and a ridge and a groove).
  • the end-side extending portion having such specific first and second ridges is that both ends in the width direction of the extension region can be secured uniformly in the vicinity of both ends in the width direction. Are preferably located at each of the
  • the ridges 32A and the grooves 32B have a concavo-convex shape whose cross-sectional shape along the longitudinal direction L is substantially zigzag, but in the present invention,
  • the specific shapes of the ridges and grooves are not limited to those having the above-mentioned concavo-convex shape, as long as the cover sheet can be provided with at least the extensibility in the longitudinal direction.
  • the ridges 32A and the recessed grooves 32B of each extension in the extension area 32 of the cover sheet 3 are thickened by gear shaping with respect to the substantially flat nonwoven fabric to be the base of the cover sheet 3. It forms by pressing the predetermined part which forms the convex part 32A and the ditch
  • the thickness direction as shown in FIG. 6 and FIG. 7 by simultaneously pressing or not pressing the portions between the extension portions from both sides in the thickness direction T.
  • a strength holding portion 31 located substantially at the center of T is formed.
  • the strength retaining portion 31 has a thickness direction T as shown in FIGS.
  • Each of the surface on one side (surface 31a on the skin facing surface side) and the surface on the other side (surface 31b on the non-skin facing surface) is substantially flat.
  • the length in the width direction of the strength holding portion 31 is not particularly limited as long as the effects of the present invention can be exhibited, and any length such as a length within a range of 1 mm to 10 mm can be adopted, for example.
  • the height from the surface 31a on the skin opposing surface side of the strength holding portion 31 to the apex of the ridges 32A is not particularly limited, and any height (for example, 0) depending on desired extensibility, touch, etc. A height within the range of 1 mm to 2 mm can be employed.
  • the non-woven fabric serving as the base material is pressed in the thickness direction T and stretched in the ridge portions 32A and the recessed groove portions 32B, so that relative strength ( While the rigidity is low, in the strength maintaining portion 31, the nonwoven fabric as the base material is pressed and compressed in the thickness direction T or the nonwoven fabric as the base material is not pressed in the thickness direction T
  • the strength (stiffness) is relatively high because the strength is maintained.
  • the urine absorbing pad 1 since the strength holding portion 31 having such a relatively high strength extends in the longitudinal direction L in the extension area 32 of the cover sheet 3, the urine absorbing pad When a shift force of 1 in the longitudinal direction L is applied to the longitudinal direction L, a plurality of folds W R as shown in FIG. It is difficult to be in a state of being shrunk, and even if the stretch area 32 of the cover sheet 3 is shrunk in the longitudinal direction L if the shift force is repeatedly applied for a long time, as shown in FIG. It is easy to restore it to its original state.
  • the urine absorbing pad 1 is intended to function as the cover sheet 3 (ie, the cover sheet 3 moves or extends in accordance with the movement of the wearer's buttocks) even when the shifting force is repeatedly applied over a long period of time. Function to make it hard to give physical stimulation due to friction or displacement to the skin of the wearer). As a result, it is difficult for the wearer to feel discomfort, and skin disorders such as wrinkles Can be less likely to occur or deteriorate.
  • the strength retaining portion refers to a portion having a relatively higher strength (rigidity) than the extension portion in the extension region, and the specific strength value thereof is not particularly limited.
  • stretching part can be performed as follows, for example.
  • a tensile tester equipped with a load cell having a maximum load capacity of 50 N (Shimadzu Corporation Co., Ltd., using Autograph type AGS-1kNG)
  • tensile strength under the same conditions (for example, distance between chucks of 100 mm, tensile speed of 100 mm / min, etc.)
  • the tensile direction at the time of measuring tensile strength is taken as the direction corresponding to the longitudinal direction of an absorbent article.
  • the structure of the strength holding portion in the extension region of the cover sheet is not particularly limited as long as the strength holding portion can secure a certain degree of strength in at least the longitudinal direction of the extension region.
  • the holding portion has, for example, a concavo-convex structure smaller than the concavo-convex structure consisting of the above-mentioned convex streaks and concave grooves; a strength reinforcing member (for example, a band-like non-woven fabric or a sheet) is affixed to a predetermined part of the substrate Having a laminated structure; having a compressed structure in which a predetermined portion of the substrate is compressed under heating or without heating; having a molten structure in which a predetermined portion of the substrate is melted under pressure or no pressure; It may have a structure combining any of these structures.
  • the strength holding portion 31 of the cover sheet 3 is continuous from the front side edge 32E F to the rear side edge 32E B in the longitudinal direction L of the extension region 32. It is arranged to extend to The strength retaining portion 31 of the cover sheet 3 extends from the front edge 32E F extension region 32 thus to the rear side edge 32E B, in the elongation zone 32 the function of the strength retaining portion 31 of the above Since it can exhibit over the whole region of the longitudinal direction L, the urine absorption pad 1 provided with such composition can exhibit the function of the above-mentioned cover sheet 3 more certainly.
  • the above-mentioned cover sheet 3 is, as shown in FIG. 4, a side non-elongated region extending in the longitudinal direction L at each of the two end portions 3E L and 3E R in the width direction W (the width direction A side non-stretched area 33L on one side of W and a side non-stretched area 33R on the other side are provided, and the side non-stretched areas 33L and 33R are also similar to the above-described strength retaining portion 31.
  • each of the surface on the skin opposing surface side and the surface on the non-skin opposing side is substantially flat, and has relatively high strength.
  • the urine absorption pad 1 has two fold lines extending in the longitudinal direction L for folding the urine absorption pad 1 in the width direction W (in FIG. , provided so as to sandwich the width direction center axis C L, see fold line L 2 on the other side of one side of the folding line L 1 and the width direction of the width direction W.), the strength retention portion 31 of the cover sheet 3 , Are arranged to overlap with these fold lines L 1 and L 2 .
  • the strength retaining portion 31 of the cover sheet 3 overlaps the fold lines L 1 and L 2 extending in the longitudinal direction L of the urine absorbing pad 1, a fold extending in the longitudinal direction L to the strength retaining portion 31
  • the cover sheet 3 can be made more difficult to be in a wrinkled state by being applied.
  • the number of folding lines for folding the absorbent article in the width direction is not particularly limited as long as the effects of the present invention are not impaired, and any number depending on the desired packaging form etc. of the absorbent article. (For example, one, four, etc.) can be adopted.
  • the arrangement form of the extension regions in the cover sheet does not inhibit the effects of the present invention.
  • any arrangement form can be adopted.
  • a cover sheet 3 'shown in FIG. 8 can be mentioned.
  • FIG. 8 since the structure except the structure different from the cover sheet 3 of the above-mentioned embodiment is fundamentally the same as that of the above-mentioned cover sheet 3, description is abbreviate
  • the cover sheet 3' in plan view, the cover sheet 3' than the front side edge 4E F in the longitudinal direction L of the low-friction member 4 disposed in the non-skin-facing side S 2 of and a front non-extension region 34 extending continuously in the and the width direction W located on the front side S F.
  • the cover sheet 3' cover sheet 3 a certain strength to resist the displacement force of the above-described in the portion of the front side S F of the Since the cover sheet 3 ′ can be shrunk or torn in the longitudinal direction L by the wrinkles, it can be made even more difficult to occur.
  • the ratio of the extension region to the cover sheet is not particularly limited as long as the effects of the present invention can be exhibited.
  • the plan view area is an area in the range of more than 50% and 100% or less of the plan view area of the entire cover sheet.
  • the cover sheet 3, FIG. 1 and FIG. 2 the width direction inner side of the side sheets 24 on one side end portion 3E L is one side of the above in the widthwise direction W
  • the other end 3E R in the width direction W is joined to the inward side end 25L of the other side sheet 25 while being joined to the inward side portion 24S near the end 24R. It is joined to the side portion 25S.
  • the longitudinal direction A pair of side joint parts 5 and 5 extending in L (more specifically, a first joint part 51 positioned outward in the width direction W and a second joint positioned inward in the width direction W The part 52) is formed.
  • the cover sheet 3 does not extend to both ends in the width direction W of the urine absorption pad 1.
  • the cover sheet 3 is joined to the pair of side sheets 24 and 25 having a high degree of freedom of movement, which can form the leak-proof wall 28, and the top sheet 21 and the absorber having a small degree of freedom of movement. 22. Since the cover sheet 3 is not directly fixed to members such as the leak-proof sheet 26 and the back sheet 23, the movement of the cover sheet 3 is difficult to be restricted, but rather, it is joined to the side sheet having a high degree of freedom of movement. The cover sheet 3 is easy to move relative to the top sheet 21 of the urine absorption pad 1. Furthermore, when the urine absorbing pad 1 is worn, the pair of side sheets 24 and 25 to which the cover sheet 3 is joined form respective leakproof wall portions 28 with the respective width direction inner side end portions 24R and 25L standing up.
  • the cover sheet 3 joined to the pair of side sheets 24 and 25 is the surface facing side S from the surface sheet 21 or the low friction member 4. It floats up to 1 , and the frictional resistance between the cover sheet 3 and the low friction member 4 is further less likely to occur.
  • a part of the bonding between the cover sheet 3 and the side sheets 24 and 25 described above is in the side non-stretched areas 33L and 33R located at both ends 3E L and 3E R in the width direction W of the cover sheet 3.
  • stress concentration occurs when a shift force is applied in the longitudinal direction L of the urine absorbing pad 1.
  • the peripheral portion is located within the side non-elongational regions 33L and 33R of the cover sheet 3, a certain strength is secured, although the portion is easy to Even when the shift force in the longitudinal direction L is repeatedly applied over a long time, the cover sheet 3 is less likely to be torn, and the function of the cover sheet 3 described above can be more stably exhibited.
  • the urine absorption pad 1 according to the present embodiment has the above-described effects (that is, an effect that the wearer does not easily cause discomfort and can not easily cause the occurrence or deterioration of skin diseases such as wrinkles). Can be played more stably over a longer period of time.
  • a part of the bonding between the cover sheet 3 and the side sheets 24 and 25 described above is, in a plan view, the width direction of the first ridges 32A 1 in the end-side extending portions 32L and 32R of the cover sheet 3. It is performed also in the area which overlaps with the end 32A 1E on the outer side and does not overlap with the second ridge 32A 2, and the joint (that is, the second joint at the side joints 5, 5) peripheral portion 52) also although a concentrated portion easily stress when force displacement in the longitudinal direction L of the urine absorbing pad 1 is applied, the peripheral portion of the above-described second ridge portion 32A 2 Since a certain strength is secured by being located in the region including the non-shape forming portion located on the outer side in the width direction, the above-mentioned displacement force is repeatedly applied to the urine absorption pad 1 for a long time Even if the cover sheet 3 is broken It is difficult to be loosened, and the function of the above-mentioned cover sheet 3 can be exhibited more reliably and
  • the end-side extension part 32L of the cover sheet 3, the first convex portions 32A 1 and the second convex portion 32A 2 is in 32R, via the groove portion 32B, alternately in the longitudinal direction L
  • the non-shape forming portions positioned outward in the width direction of the above-described second ridge 32A 2 are formed at regular intervals along the longitudinal direction L of the cover sheet 3 by being repeatedly arranged.
  • each of the portions 5 and 5 is located at the outer side in the width direction W and extends in the longitudinal direction L, and the inward side in the width direction W and located in the longitudinal direction
  • the first bonding portion 51 and the second bonding portion 52 of the first bonding portion 51 of the first bonding portion 51 extend as illustrated in FIGS. 4 and 5.
  • the front side edge 51E F overlaps the front side edge 3E F of the cover sheet 3 in the thickness direction T
  • the front side edge 52E F of the second joint 52 is the front side edge 3E F of the cover sheet 3 It is arranged so as to be positioned on the rear side S B than.
  • the specific position of the front end edge 52E F of the second joint portion 52 is not particularly limited, for example, in the range from the front end edge 3E F of the cover sheet 3 to the rear side of 1 mm ⁇ 50 mm is there.
  • the rear side edge 52E B of the rear side edge 51E B and the second joint 52 of the first joint portion 51 are both rear side edge of the cover sheet 3 and the thickness direction T Duplicate.
  • the cover sheet 3 When the cover sheet 3 is joined to the side sheets 24 and 25 by the first joint portion 51 and the second joint portion 52 in such a specific arrangement form, the above-described shift force is applied to the cover sheet 3.
  • the front side portion of the second joint 52 which is the portion where stress is most likely to be concentrated, is not joined to the side sheets 24, 25 so that the stress applied to the front side portion is dissipated (distributed to other portions),
  • the cover sheet 3 can be made more difficult to tear, and further, the cover sheet 3 can be made more steadily by the first joint portion 51 located on the outer side in the width direction than the above-mentioned second joint portion 52, It can be fixed at 25. Thereby, the urine absorption pad 1 which concerns on this embodiment can exhibit the function of the above-mentioned cover sheet 3 stably over a long time.
  • each of the pair of side sheets 24 and 25 described above and the two end portions 21L and 21R in the width direction W of the top sheet 21 are, as shown in FIG. It is joined respectively by outward side junction parts 6L and 6R which separated by predetermined distance on the outward side of width direction W, respectively.
  • the side side joint portions 5 and 5 which are joint portions between each of the pair of side sheets 24 and 25 and the cover sheet 3 and the joint portions between each of the pair of side sheets 24 and 25 and the surface sheet 21
  • the separated portions 24D and 25D that is, the side side joint portions 5 and 5 and the outward side in the pair of side
  • the cover sheet 3 is secured while maintaining an area (that is, a movement margin of the cover sheet) that allows movement or extension of the cover sheet 3 in the longitudinal direction L.
  • the sheet 3 can be displaced so as to be lifted from the top sheet 21 when the pair of side sheets 24 and 25 stand up.
  • the displacement force described above can be joined to the lateral side joint portions 5 and 5 in the pair of side sheets 24 and 25 with the outward side while relaxing at the portions 24D, 25D between the portions 6L, 6R, the cover sheet 3 can be moved or stretched smoothly and reliably in accordance with the movement of the buttocks of the wearer.
  • the length in the width direction and the arrangement interval of the above-mentioned joints are not particularly limited unless the effects of the present invention are impaired.
  • an arbitrary length e.g., a length within the range of 1 mm to 20 mm
  • an arrangement interval e.g., an arrangement interval of the first joint portion and the second joint portion
  • the distance between the side joints and the outside joints may be in the range of 5 mm to 50 mm, and so on.
  • the cover sheet may be directly fixed to the main part other than the above-mentioned side sheet, instead of or in addition to the above-mentioned joining with the side sheet, if the movement is not limited. That is, the cover sheet can be partially joined to various members constituting the main part so that the movement is not restricted.
  • the cover sheet may be joined to the main part (more specifically, the top sheet or the back sheet) of the absorbent article in such a manner that the cover sheet bends sufficiently to form a drape so that its movement is not restricted. it can.
  • the cover sheet 3 as shown in FIG. 4, the rear end portion 3E B extending in the width direction W, 3 equal parts the rear end portion 3E B in the width direction W
  • the cover sheet 3 has a width-direction central portion (a width-direction central axis line of the width-direction central region 3E BC) of the width-direction first region 3E B1 , the width-direction central region 3E BC and the width-direction second region 3E B2 in portions) other than the portion of overlapping with C L, it is joined to the topsheet 21. More specifically, the rear end portion 3E B of the cover sheet 3, as shown in FIG.
  • the rear-side first joint extending across the width direction first region 3E B1 widthwise central region 3E BC While being joined to the skin facing surface of the top sheet 21 via the portion 71 and the rear side second joint portion 72 extending from the width direction second region 3E B2 to the width direction center region 3E BC ,
  • the portion including the widthwise central portion of the widthwise central region is not joined to the top sheet 21.
  • the bonding mode between the rear side end of the cover sheet and the surface sheet is not limited to the mode of the above-described embodiment.
  • the cover sheet has a width direction first region of the rear side end and As long as a part or all of the second region in the width direction is joined to the skin facing surface of the surface sheet, it is not joined to the surface sheet in the central region in the width direction or only a part thereof is joined to the surface sheet It may be done.
  • the width direction first area and the above-mentioned width direction first area are sufficiently secured while securing the movement margin of the cover sheet in the width direction central area described above.
  • the movement of the cover sheet can be restricted within a predetermined range so that the cover sheet does not move or extend excessively in the longitudinal direction.
  • the absorbent article provided with such a configuration becomes difficult to form a difficult recovery state (for example, a state in which the wrinkles are strongly pulled, etc.) that can be generated by excessive movement or extension of the cover sheet, and the cover The function of the seat can be exhibited more reliably.
  • each above-mentioned back side junction (the back side 1st junction and back side 2nd junction) is not specifically limited,
  • the longitudinal direction length of each back side junction is a range of 10 mm-30 mm
  • the widthwise length is in the range of 5 mm to 40 mm.
  • the bonding method is not particularly limited as long as the effects of the present invention are not impaired, and any bonding method using a hot melt adhesive, heat fusion or the like can be adopted.
  • the cover sheet 3 near the buttocks of the skin disease prone wearer such pressure ulcers and rash (especially sacral near) to correspond to the rear region of the urine absorbing pad 1 A B
  • the cover sheet is not limited to such an arrangement form, but the cover sheet is not limited to the rear area but also the front area or the central area where the above-mentioned skin diseases may occur. It may be arranged in some areas.
  • the cover sheet 3 as shown in FIG. 1, the rear end portion 3E B of the cover sheet 3 is disposed so as to extend to the rear side edge 1B of the urine absorbing pad 1 ing.
  • the cover sheet extends as far as possible to the rear side of the absorbent article. Is preferred.
  • the cover sheet extends to such a position, the vicinity of the buttocks of the wearer susceptible to the skin disease can be covered more widely, and thus the above-mentioned skin disease can be made more difficult to occur.
  • the size of the cover sheet is not particularly limited as long as the effects of the present invention can be exhibited, and for example, the longitudinal length of the cover sheet is in the range of 25% to 100% of the longitudinal length of the rear region. Preferably, it is in the range of 30% to 80%, more preferably in the range of 40% to 70%.
  • the longitudinal length means the maximum length in the longitudinal direction of the shape.
  • the length in the width direction of the cover sheet is, for example, in the range of 50 mm to 250 mm, preferably 80 mm to 200 mm, in consideration of the range of the site where skin diseases easily occur and the ease of leakage of excrement fluid. And more preferably in the range of 100 mm to 180 mm.
  • the width direction length means the maximum length in the width direction of the said shape.
  • the low-friction member 4 As shown in FIGS. 1 and 2, disposed between the topsheet 21 and the cover sheet 3 in the rear region A B of the urine absorbing pad 1 It is, are constituted by a low friction sheet member capable of reducing the frictional resistance between the cover sheet 3 disposed on the skin facing side S 1.
  • the low friction member 4 has a predetermined longitudinal length (for example, 100 mm to 200 mm) along the longitudinal direction L of the urine absorption pad 1 and a predetermined length along the width direction W of the urine absorption pad 1 in plan view. It has a substantially rectangular outer shape having a widthwise length (for example, 50 mm to 150 mm).
  • the external shape of the low friction member is not limited to such an aspect, and any external shape (for example, a circular shape) can be used as long as it can reduce the frictional resistance with the cover sheet described above. , Ovals, polygons, etc.) and sizes can be employed.
  • the low friction member is constituted by one sheet-like member as in the above-mentioned embodiment, even if it is constituted by a plurality of sheet-like members divided in the longitudinal direction and / or the width direction Good.
  • the plurality of sheet members constituting the low friction member are disposed at predetermined intervals in the longitudinal direction and / or the width direction, but the plurality of sheet members are disposed in this manner. And, it becomes easy to secure liquid permeability and air permeability.
  • the sheet-like member that can be used as the low friction member is not particularly limited as long as it can reduce the frictional resistance with the above-mentioned cover sheet, and for example, olefin resins such as polyethylene and polypropylene, silicone resins
  • a resinous sheet-like member made of a resin or resin composition having a low coefficient of friction such as a fluorine resin such as polytetrafluoroethylene; a general-purpose thermoplastic resin such as an olefin resin such as polyethylene or polypropylene or a polyester resin such as polyethylene terephthalate
  • at least one surface of the substrate sheet made of a thermoplastic resin composition (the surface located on the side facing the skin in the absorbent article) is coated with a low friction material such as silicone resin or fluorine resin having a low coefficient of friction.
  • the sheet-like member and the base sheet may be a sheet or film having a thin and flat structure, or a porous structure having a plurality of openings, or an uneven structure having a plurality of projections and depressions.
  • a sheet provided with an arbitrary structure such as; a fibrous sheet such as a woven fabric, a non-woven fabric, and a knitted fabric; and a sheet-like structure in any form such as a laminated sheet combining any of these.
  • this resin-made sheet-like member contains 50 mass% or more of high density polyethylene (HDPE), high density polyethylene (HDPE) and It is further preferred to include low density polyethylene (LDPE) in a weight ratio within the range of 50/50 to 75/25.
  • HDPE high density polyethylene
  • HDPE high density polyethylene
  • LDPE low density polyethylene
  • the low friction member is formed of a resinous sheet-like member containing high density polyethylene in a proportion of 50% by mass or more, the low friction member has a hardness of a certain level or more due to the high density polyethylene component and It can be a small member.
  • the resin-made sheet-like member forming the low friction member contains high density polyethylene and low density polyethylene at a mass ratio within the range of 50/50 to 75/25. And so on because the residual stress (ie, internal residual stress) remaining inside the sheet-like member can be reduced by the soft low-density polyethylene component, the sheet-like member (particularly, the end portion in the width direction of the sheet-like member) Can be suppressed from curling up (i.e., curling) due to the relaxation of internal residual stress.
  • an absorbent article provided with such a resin sheet-like member as a low friction member can move the cover sheet described above more smoothly on the low friction member, so it is possible for the wearer's skin. It is possible to make it even more difficult to give physical stimulation due to friction or shift force.
  • high density polyethylene refers to polyethylene having a density of 0.942 g / cm 3 or more
  • low density polyethylene refers to polyethylene having a density of 0.910 g / cm 3 to 0.930 g / cm 3. Point to.
  • this covering type sheet-like member is at least one surface of a substrate sheet which consists of the above-mentioned general purpose thermoplastic resin or thermoplastic resin composition. It can be obtained by applying a predetermined amount (for example, an amount within the range of about 0.6 g / m 2 to 0.8 g / m 2 ) of a low friction material such as silicone resin.
  • the form in particular of this silicone resin is not restrict
  • the curing method is also not particularly limited, and any thermosetting or ultraviolet curing silicone resin can be used.
  • a plastic film made of the above-mentioned general-purpose thermoplastic resin or thermoplastic resin composition as the substrate sheet there is a possibility that the substrate sheet may be deformed or melted when the silicone resin is cured by heating. For this reason, it is preferable to use a UV curable silicone resin.
  • the coating method in particular of low friction material is not restrict
  • the structure of the low friction member is not particularly limited as long as the low friction member has low friction which can reduce the frictional resistance between the low friction member and the cover sheet disposed on the skin-facing surface side.
  • Any other structure for example, at least one elongated rod, at least one strip, etc.
  • a low friction area can be widely secured, and a low friction member surface
  • a sheet-like member having a generally flat structure as in the above embodiment. It is preferable to use
  • the sheet-like member which can be used as a low friction member is not limited to what has a generally substantially flat structure like the above-mentioned embodiment,
  • This sheet-like member is, for example, in the width direction of an absorbent article. Both ends may be curved (ie, displaced) toward the skin facing surface side. When both ends in the width direction of the sheet-like member forming the low friction member are displaced toward the skin facing surface, the end displaced toward the skin facing surface is the skin of the low friction member.
  • the coefficient of static friction of the surface of the low friction member (at least the surface on the side facing the skin) can move the above-mentioned cover sheet in the surface direction together with the wearer's skin in accordance with the movement of the wearer.
  • the material is not particularly limited as long as it can ensure a degree of slipperiness, and is, for example, in the range of 0.04 to 0.80, preferably in the range of 0.10 to 0.50, and more preferably It is in the range of 0.10 to 0.40.
  • the coefficient of dynamic friction of the surface of the low friction member can also ensure slipperiness to such an extent that the above-mentioned cover sheet can move in the surface direction with the skin of the wearer in accordance with the movement of the wearer.
  • the static friction coefficient and the dynamic friction coefficient can be measured according to JIS P8147 (b) horizontal method.
  • a low-friction member is used as a weight test piece using a cotton cloth for friction specified in JIS L0803 as a test piece for a horizontal plate. .
  • the low friction member even when the low friction member is disposed so as to completely overlap the cover sheet in the thickness direction (that is, the low friction member and the cover sheet have the same planar view area)
  • the low friction member may be disposed so as to include the cover sheet
  • the low friction member overlaps the cover sheet in the thickness direction in terms of ensuring good touch, liquid permeability, air permeability and the like. It is preferable to arrange so that it may become a narrower range than a cover sheet in In that case, it is preferable that the low friction member has a planar view area equal to or less than a certain level such that the low friction member is not exposed even when the above-mentioned cover sheet moves in the surface direction.
  • the plan view area is in the range of 10% to 80% of the plan view area of the cover sheet, preferably in the range of 20% to 60%, and more preferably in the range of 25% to 50%.
  • the position at which the low friction member is disposed is not particularly limited as long as it overlaps with the cover sheet in plan view, but is preferably substantially at the center of the cover sheet.
  • the absorbent article has a fold line extending in the width direction for folding the developed absorbent article in the longitudinal direction
  • the low friction member has the above-described fold in plan view. It is preferable to arrange
  • the low friction member is disposed at a position not overlapping the fold line, the low friction member is not provided with folds extending in the width direction, so that the above-mentioned cover sheet is particularly easy to move in the longitudinal direction.
  • the absorbent article can be stored in a package or the like in a compact state in which the absorbent article is longitudinally folded.
  • the thickness of the low friction member is not particularly limited as long as the effects of the present invention are not impaired, and an arbitrary thickness (for example, a thickness within the range of 0.01 mm to 1.0 mm) taking flexibility and strength into consideration It can be adopted.
  • the thickness of the low friction member can be measured by measuring using any non-contact type measuring instrument such as a laser displacement meter or by magnifying and observing the cross section using a scanning electron microscope or the like. As the thickness of the low friction member, an average value of measured values at arbitrary five different points is adopted in consideration of the influence of a measurement error and the like.
  • the above-mentioned low friction member is preferably joined to the surface sheet by any joining means such as a hot melt adhesive.
  • This bonding means may be applied continuously or intermittently in the longitudinal direction and / or width direction of the absorbent article, but when the bonding means is applied intermittently, the air permeability is improved. It is easy to secure, and the stuffiness in the absorbent article is less likely to occur.
  • the surface sheet and the low friction member have a low tack of 0.78 N or less as measured by the probe tack test. It is preferable that they be at least partially joined via a metallic adhesive.
  • the low tack adhesive causes the low friction member to open. Since the low friction member can be fixed to the surface sheet while not being joined to the cover sheet positioned on the skin facing surface side through the hole, the cover can be provided while suppressing positional deviation and peeling of the low friction member. The sheet can be moved more stably.
  • the measured value of a probe tack test can be measured using a probe tack type
  • the provision of the low friction member described above is not an essential component, and therefore the absorbent article of the present invention when the movement or extension of the cover sheet described above is secured. May not include the low friction member described above.
  • the absorbent sheet 8 as shown in FIG. 1, the skin-facing surface side S 1 of the absorbent body 22, than the central longitudinal axis C W extending in the width direction W and the front edge 3E F of the rear side S located in B and above of the cover sheet 3 is disposed so as to straddle the longitudinal direction L.
  • the absorbent article further comprises an absorbent sheet disposed at the above-mentioned specific position in addition to the absorbent body, even in the case where waste fluid is repeatedly supplied from the wearer, the longitudinal direction of the absorbent article The waste fluid flowing backward can be absorbed stepwise by the absorber and the absorbent sheet.
  • the absorbent article provided with such an absorbent sheet can prevent the buttocks of the wearer from getting wet by the excretory fluid, and further, the cover sheet can be prevented from becoming wet by the excretory fluid and the strength being reduced.
  • the absorbent sheet 8 has a predetermined longitudinal length extending from the central area A C to the rear area A B of the urine absorbing pad 1 in plan view, as shown in FIG. (For example, 100 mm to 200 mm) and a predetermined width direction length (for example, 100 mm to 200 mm) extending so as to cover most of the absorber 22 in the width direction W It has an outer shape of a shape.
  • the outer shape of the absorbent sheet is not limited to such an aspect, and an arbitrary outer shape (for example, a circle, an ellipse, a polygon, etc.) according to the desired absorption performance etc. It can be adopted.
  • the absorbent sheet is not particularly limited as long as it is a sheet-like member containing a superabsorbent polymer.
  • a superabsorbent polymer such as sodium acrylate copolymer is a covering sheet such as a tissue having hydrophilicity. The thing covered etc. are mentioned.
  • the absorbent sheet may contain the same absorbent material as the above-mentioned absorbent.
  • the basis weight and thickness of the absorbent sheet are not particularly limited as long as the effects of the present invention are not impaired, and any basis weight and thickness can be adopted in consideration of desired absorption performance, flexibility, and the like.
  • the present invention can be applied to various absorbent articles such as, for example, (light) incontinence pads and disposable diapers in addition to the urine absorption pads of the above-described embodiments.
  • the absorbent article of the present invention is not limited to the above-described embodiment and the modifications thereof, and can be appropriately combined, substituted, changed, etc. without departing from the object and the purpose of the present invention.
  • ordinal numbers such as "first” and "second” are used to distinguish the items to which the ordinal numbers are attached, and mean the order, priority, importance, etc. of each item. It is not something to do.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Vascular Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

La présente invention concerne un article absorbant qui est moins susceptible de provoquer une gêne chez le porteur même quand une force de déplacement est appliquée de manière répétée sur une longue période de temps, et qui est moins susceptible de provoquer ou de faire empirer des affections cutanées telles qu'un ulcère de pression. L'article absorbant selon l'invention comprend : une section principale (2) comportant une feuille de surface perméable aux liquides (21) ; et une feuille de couverture (3) située plus près de la surface côté peau que la feuille de surface (21) dans au moins une région arrière (AB) et partiellement liée à la section principale (2). La feuille de couverture (3) comporte : une région d'étirement (32) qui peut être est étirée au moins dans le sens longitudinal ; et dans la région d'étirement (32), une ou plusieurs sections de rétention de résistance s'étendant dans le sens longitudinal.
PCT/JP2018/012158 2017-06-26 2018-03-26 Article absorbant WO2019003526A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-124552 2017-06-26
JP2017124552A JP6727169B2 (ja) 2017-06-26 2017-06-26 吸収性物品

Publications (1)

Publication Number Publication Date
WO2019003526A1 true WO2019003526A1 (fr) 2019-01-03

Family

ID=64740515

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/012158 WO2019003526A1 (fr) 2017-06-26 2018-03-26 Article absorbant

Country Status (3)

Country Link
JP (1) JP6727169B2 (fr)
TW (1) TWI769241B (fr)
WO (1) WO2019003526A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022258851A1 (fr) * 2021-06-08 2022-12-15 Fernandez Varela Jose Luis Couche protégeant le sacrum

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7395791B1 (ja) * 2023-09-14 2023-12-11 ユニ・チャーム株式会社 大人用の吸収性パッド

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007125259A (ja) * 2005-11-04 2007-05-24 Uni Charm Corp 使い捨ておむつ
JP2011167412A (ja) * 2010-02-19 2011-09-01 Unicharm Corp 使い捨て着用物品
JP2014155609A (ja) * 2013-02-15 2014-08-28 Uni Charm Corp 褥瘡予防機能付き使い捨て尿取りパッド

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050137544A1 (en) * 2003-12-18 2005-06-23 Kimberly-Clark Worldwide, Inc. Absorbent article with skin care composition
JP5977653B2 (ja) * 2012-11-27 2016-08-24 花王株式会社 吸収性物品
CN110495993B (zh) * 2014-03-06 2022-04-15 宝洁公司 多组分顶片
JP6456137B2 (ja) * 2014-12-24 2019-01-23 ユニ・チャーム株式会社 吸収性物品

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007125259A (ja) * 2005-11-04 2007-05-24 Uni Charm Corp 使い捨ておむつ
JP2011167412A (ja) * 2010-02-19 2011-09-01 Unicharm Corp 使い捨て着用物品
JP2014155609A (ja) * 2013-02-15 2014-08-28 Uni Charm Corp 褥瘡予防機能付き使い捨て尿取りパッド

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022258851A1 (fr) * 2021-06-08 2022-12-15 Fernandez Varela Jose Luis Couche protégeant le sacrum

Also Published As

Publication number Publication date
TWI769241B (zh) 2022-07-01
TW201904538A (zh) 2019-02-01
JP2019005294A (ja) 2019-01-17
JP6727169B2 (ja) 2020-07-22

Similar Documents

Publication Publication Date Title
CN105455962B (zh) 吸收性物品
WO2010110154A1 (fr) Article absorbant
JP5350078B2 (ja) 尿吸収物品
JP2011072720A (ja) 吸収性物品
JP2010273972A (ja) 吸収性物品
JP6479107B2 (ja) 吸収性物品
JP5517682B2 (ja) 吸収性物品
JP4881690B2 (ja) 吸収性物品
JP2021183279A (ja) 吸収性物品
WO2019003526A1 (fr) Article absorbant
JP2006280583A (ja) 吸収性物品
JP5536545B2 (ja) 吸収性物品
JP5081767B2 (ja) 吸収性物品
JP2007190296A (ja) 吸収性物品
JP2011250878A5 (fr)
JP2011177427A (ja) おむつ
JP6385519B1 (ja) 吸収性物品
JP6253836B1 (ja) 尿取りパッド
JP2009254662A (ja) 吸収性物品
JP2020137731A (ja) 吸収性物品
JP4142518B2 (ja) 吸収性物品
JP2012165946A (ja) テープ型使い捨ておむつ
JP5085085B2 (ja) テープ型使い捨て紙おむつ
JP4955529B2 (ja) 使い捨ておむつ
JP2008188049A (ja) 紙おむつ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18825510

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18825510

Country of ref document: EP

Kind code of ref document: A1