WO2020255541A1 - Article absorbant - Google Patents

Article absorbant Download PDF

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Publication number
WO2020255541A1
WO2020255541A1 PCT/JP2020/015732 JP2020015732W WO2020255541A1 WO 2020255541 A1 WO2020255541 A1 WO 2020255541A1 JP 2020015732 W JP2020015732 W JP 2020015732W WO 2020255541 A1 WO2020255541 A1 WO 2020255541A1
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WO
WIPO (PCT)
Prior art keywords
article
region
sheet
absorbent article
width direction
Prior art date
Application number
PCT/JP2020/015732
Other languages
English (en)
Japanese (ja)
Inventor
友美 磯貝
坂口　智
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
Priority to CN202080037636.7A priority Critical patent/CN113853188B/zh
Publication of WO2020255541A1 publication Critical patent/WO2020255541A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • 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
    • A61F13/42—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with wetness indicator or alarm
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin

Definitions

  • This disclosure relates to absorbent articles.
  • Patent Document 1 An absorbent article such as a disposable diaper, comprising a liquid-permeable front sheet, a leak-proof back sheet, and an absorber arranged between the sheets is known (see, for example, Patent Document 1). ).
  • the back sheet of Patent Document 1 is obtained by forming a fused portion by embossing on a laminated sheet in which a heat-rolled non-woven fabric and a liquid-impermeable sheet are bonded together via an adhesive. In this case, the adhesive is applied to the entire laminated sheet, and the fused portion is formed on the entire laminated sheet.
  • the handler eg, parent
  • the absorbent article eg, disposable diaper
  • the handler touches the outer surface of the absorbent article. Therefore, it is preferable to provide a soft touch not only to the wearer but also to the handler.
  • a laminated sheet is used in which an adhesive is applied as a whole and a fused portion is formed as a whole. Therefore, it is difficult to give a soft touch to the outer surface of the absorbent article.
  • [Structure 1] It is an absorbent article Absorber and A liquid-impermeable backsheet placed on the non-skin side of the absorber, An exterior sheet arranged on the non-skin side of the back sheet and formed of a non-woven fabric, Including In the first overlapping region where the exterior sheet and the back sheet overlap each other when viewed in the article thickness direction, A first joining region in which the exterior sheet and the back sheet are joined to each other, A first non-bonded region in which the exterior sheet and the back sheet are not bonded to each other, Is partitioned, The first joint region includes a plurality of first widthwise extending joint regions that expand in the article width direction while being separated from each other in the article length direction in the deployed state.
  • the first non-joint region is located between the first widthwise extending joint regions in the unfolded state in the article length direction.
  • the exterior sheet is slipperable with respect to the backsheet at least in the width direction of the article. Absorbent article.
  • the first is that when the non-woven fabric laminated on another sheet is pressed with a finger and the finger is moved in the in-plane direction (direction parallel to the surface of the non-woven fabric), the non-woven fabric faces the other sheet. It means that slipping or relative movement inward gives a soft touch. This feel is thought to be similar to the feel obtained when two gauze sheets stacked on top of each other are picked and rubbed with two fingers.
  • the handler's fingers such as the thumb, tend to point in the direction of the article length, and thus the handler's. It means that the thumb tends to move in the width direction of the article.
  • the exterior sheet in the first non-bonded region can slip in the width direction of the article with respect to the back sheet.
  • the exterior sheet slips or moves relative to the back sheet in the article width direction in the first non-joining region. Therefore, a soft touch can be obtained on the outer surface of the absorbent article.
  • the first non-joining region is located between the first widthwise extending fixed regions, the first non-joining region easily slips in the article width direction. Therefore, a soft touch can be easily obtained.
  • the dimension in the article length direction of the first non-bonded region can be made larger. Therefore, the first non-bonded region can slip more easily in the width direction of the article, and a soft touch can be obtained more easily.
  • the article length direction dimension of the first non-joining region is from the article length direction outer edge of the first width direction extending joining region to the article length direction edge of the first overlapping region.
  • the dimension in the article length direction of the first non-joining region can be made larger. Therefore, the first non-bonded region can slip more easily in the width direction of the article, and a soft touch can be obtained more easily.
  • the first non-bonded region can slip more easily in the width direction of the article, and a soft touch can be obtained more easily.
  • the dimension in the article length direction of the first non-bonded region can be made larger. Therefore, the first non-bonded region can slip more easily in the width direction of the article, and a soft touch can be obtained more easily.
  • the absorber is soft to the touch. Therefore, according to the configuration 6, when the handler pushes the first non-bonded region in the article thickness direction, a softer feel is obtained.
  • the thumb of the handler tends to be located in the proximal region when the handler grabs the absorbent article. Therefore, according to the configuration 7, when the handler grabs the absorbent article, a soft touch is surely obtained.
  • the back sheet A liquid-impermeable leak-proof sheet and An intermediate sheet bonded to the non-skin side of the leak-proof sheet and formed from a non-woven fabric, Including In the first overlapping region where the exterior sheet and the intermediate sheet overlap each other when viewed in the article thickness direction, The first joining region where the exterior sheet and the intermediate sheet are joined to each other, The first non-bonded region in which the exterior sheet and the intermediate sheet are not bonded to each other, Is partitioned, Within the first non-bonded region, the exterior sheet is slipperable with respect to the intermediate sheet at least in the width direction of the article.
  • the absorbent article according to any one of configurations 1 to 7.
  • the leak-proof sheet may make the absorbent article hard to the touch. According to the configuration 8, since the exterior sheet and the intermediate sheet formed of the non-woven fabric are located on the non-skin side of the leak-proof sheet, a soft touch can be obtained. Further, by joining the intermediate sheet to the leak-proof sheet or the leak-proof sheet and the intermediate sheet, the strength of the absorbent article is increased.
  • the soft touch of the absorbent article is obtained, and the strength of the absorbent article is enhanced.
  • the exterior sheet in the first non-bonded region slips against the intermediate sheet, and the intermediate sheet in the second non-bonded region slips against the leak-proof sheet, so that a softer touch is obtained. Be done.
  • a softer touch can be obtained by the exterior sheet in the first non-bonded region and the intermediate sheet in the second non-bonded region that overlap each other in the thickness direction of the article.
  • the strength of the absorbent article is increased while providing the soft touch of the absorbent article.
  • the intermediate sheet provides a soft touch and enhances the strength of the exterior sheet.
  • the first joint region further includes a plurality of first lengthwise extending joint regions in which the first joint region expands in the article length direction while being separated from each other in the article width direction in the unfolded state.
  • the first non-joining region is between the first widthwise extending joint regions in the article length direction and between the first lengthwise extending joint regions in the article width direction. Located in between, The absorbent article according to any one of configurations 1 to 13.
  • the exterior sheet is securely held by the back sheet.
  • FIG. 1 It is a schematic plan view of the disposable diaper of the embodiment according to the present disclosure in the unfolded state as seen from the non-skin side. It is a schematic cross-sectional view of the disposable diaper of the embodiment according to this disclosure as seen along the line CL of FIG. It is a schematic plan view for demonstrating the basic structure of the 1st bonded region and the 1st non-joined region of the embodiment according to the present disclosure. It is a schematic partial enlarged view for demonstrating the arrangement of an adhesive in a 1st joint region. It is a schematic plan view which shows the 1st junction region and 1st non-junction region of embodiment according to this disclosure in the unfolded state. FIG.
  • FIG. 5 is a schematic plan view of a disposable diaper according to the present disclosure in a folded state for explaining the positional relationship between the first non-junction region and the proximal compartment.
  • 6 is a schematic plan view similar to FIG. 6 for explaining the positional relationship between the first non-joint region and the proximal compartment portion. It is a schematic plan view which shows the 2nd junction region and the 2nd non-junction region of embodiment according to this disclosure in the expanded state.
  • FIG. 5 is a schematic cross-sectional view similar to FIG. 2, showing a first junction region and a first non-junction region, and a second junction region and a second non-junction region according to the present disclosure. It is a schematic plan view similar to FIG.
  • FIG. 5 is a schematic plan view showing a second bonded region and a second non-joined region of another embodiment according to the present disclosure in an unfolded state.
  • FIG. 5 is a schematic cross-sectional view similar to FIG. 2 showing a second joined region and a second non-joined region of another embodiment according to the present disclosure.
  • FIG. 5 is a schematic plan view showing a second bonded region and a second non-joined region according to still another embodiment according to the present disclosure in the unfolded state. It is a schematic cross-sectional view similar to FIG. 2 showing a second bonded region and a second non-joined region of still another embodiment according to the present disclosure.
  • FIG. 1 is a schematic development view of the absorbent article 1 of the present disclosure in the unfolded state as seen from the non-skin side
  • FIG. 2 is an embodiment according to the present disclosure as seen along the line CL of FIG.
  • Schematic cross-sectional views of the absorbent article 1 in the form are shown respectively.
  • L is the length direction of the absorbent article 1 (article length direction)
  • W is the width direction of the absorbent article 1 (article width direction)
  • T is the thickness direction of the absorbent article 1 (article thickness direction).
  • CL passes through the center of the absorbent article 1 in the article length direction L and extends in the article width direction W
  • CW passes through the center of the absorbent article 1 in the article width direction W.
  • the center line in the width direction extending in the length direction L of the article is shown.
  • the inward and inward directions in the article length direction L mean the sides and directions toward the center line CL in the length direction
  • the outward and outward directions in the article length direction L mean the center line CL in the length direction. It means the side and direction away from.
  • the inward and inward directions in the width direction W of the article mean the side and the direction toward the center line CW in the width direction
  • the outside and the outward direction in the width direction W of the article mean the side and the direction away from the center line CW in the width direction.
  • the inward and inward directions in the article thickness direction T mean the side and the direction toward the wearer
  • the outward and outward directions in the article thickness direction T mean the side and the direction away from the wearer.
  • the absorbent article 1 of the embodiment according to the present disclosure is formed from a tape-type disposable diaper. Another embodiment (not shown) absorbent article 1 is formed from a pants-type or pad-type absorbent article.
  • the disposable diaper 1 of the embodiment according to the present disclosure makes a contrast with respect to the center line CW in the width direction.
  • the disposable diaper 1 of the embodiment according to the present disclosure includes a ventral portion 1a, an intermediate portion 1b, and a dorsal portion 1c sequentially arranged along the article length direction L in the unfolded state. Further, the disposable diaper 1 of the embodiment according to the present disclosure is provided on the fastening tape 1d such as a hook provided at both ends of the dorsal portion 1c in the width direction W of the article, and on the outer surface or the non-skin side surface of the ventral portion 1a. Also included is a loop-like target tape 1e provided.
  • the waist opening through which the wearer's upper limbs pass is defined by the article length direction outer edge 1ae of the ventral portion 1a and the article length direction outer edge 1ce of the dorsal portion 1c.
  • a pair of article widthwise outer edges 1be of the intermediate portion 1b define a pair of leg openings through which the wearer's legs pass.
  • the disposable diaper 1 of the embodiment according to the present disclosure includes a top sheet 2, an absorber 3, a back sheet 4, an exterior sheet 5, and a pair of side flaps 6.
  • the top sheet 2 of the embodiment according to the present disclosure is formed of a liquid-permeable non-woven fabric. Further, the top sheet 2 of the embodiment according to the present disclosure has a square shape. The top sheet 2 is positioned so as to face the wearer's skin in the worn state.
  • the absorber 3 of the embodiment according to the present disclosure is arranged on the side opposite to the wearer's skin with respect to the top sheet 2, that is, on the non-skin side of the top sheet 2. Further, the absorber 3 of the embodiment according to the present disclosure has a quadrangular shape or an hourglass shape. Further, the absorber 3 of the embodiment according to the present disclosure includes an absorbent core wrapped in a core wrap. Absorption cores include, for example, pulp fibers, superabsorbent polymers and the like. The core wrap is formed, for example, from a liquid permeable non-woven fabric. The absorber 3 is configured to absorb a liquid such as urine.
  • the backsheet 4 of the embodiment according to the present disclosure is arranged on the non-skin side of the absorber 3.
  • the back sheet 4 of the embodiment according to the present disclosure includes a liquid-impermeable leak-proof sheet 4a and an intermediate sheet 4b bonded to the non-skin side of the leak-proof sheet 4a and formed of a non-woven fabric.
  • the leak-proof sheet 4a of the embodiment according to the present disclosure is formed from, for example, a synthetic resin film. Further, the leak-proof sheet 4a of the embodiment according to the present disclosure has a square shape.
  • the intermediate sheet 4b of the embodiment according to the present disclosure is formed of a non-woven fabric. Examples of the intermediate sheet 4b include spunbond (SB) non-woven fabrics or spunbond meltblown spunbond SMS non-woven fabrics. Further, the intermediate sheet 4b of the embodiment according to the present disclosure has a square shape.
  • the exterior sheet 5 of the embodiment according to the present disclosure is arranged on the non-skin side of the back sheet 4 and is formed of a non-woven fabric.
  • Examples of the exterior sheet 5 include SB non-woven fabric or SMS non-woven fabric.
  • the exterior sheet 5 of the embodiment according to the present disclosure has a square shape.
  • the exterior sheet 5 of the embodiment according to the present disclosure constitutes the outer surface of the disposable diaper 1.
  • the leak-proof sheet 4a is formed of, for example, a synthetic resin
  • the disposable diaper 1 may be hard to the touch.
  • the intermediate sheet 4b and the exterior sheet 5 formed of the non-woven fabric are provided on the non-skin side of the leak-proof sheet 4a, a soft touch can be obtained. In other words, the feel of the leak-proof sheet 4a is limited by the intermediate sheet 4b and the exterior sheet 5.
  • the basis weight of the non-woven fabric forming the exterior sheet 5 is 15 g / m. 2 or more is preferable.
  • the basis weight of the non-woven fabric forming the intermediate sheet 4b is preferably lower than that of the non-woven fabric forming the exterior sheet 5, preferably 8 to 12 g / m 2 .
  • the exterior sheet 5 is formed of an SB non-woven fabric having a basis weight of 18 g / m 2
  • the intermediate sheet 4b is formed of an SB non-woven fabric having a basis weight of 12 g / m 2 .
  • the side flap 6 of the embodiment according to the present disclosure extends in the article length direction L along the outer edge of the top sheet 2 in the article width direction.
  • the side flap 6 of the embodiment according to the present disclosure includes a liquid-impermeable sheet and an elastic member in an elongated state extending in the length direction L of the article.
  • the side flap 6 is configured to stand up from the top sheet 2 along an upright line or fold line 6s extending in the article length direction L, thereby limiting the leakage of liquid such as urine.
  • the disposable diaper 1 of the embodiment according to the present disclosure includes an indicator 7 which is arranged between the absorber 3 and the back sheet 4 and is configured to discolor when in contact with a liquid such as urine.
  • the indicator 7 of the embodiment according to the present disclosure extends in the article length direction L on the width direction center line CW. Further, the indicator 7 of the embodiment according to the present disclosure is applied to the skin side of the back sheet 4 or the absorber 3 side.
  • Indicator 7 contains, for example, a discoloring agent. The discoloration of the indicator 7 indicates the appropriate replacement time for the disposable diaper 1.
  • the disposable diaper 1 of the embodiment according to the present disclosure is further joined to the exterior sheet 5 and expands in the article length direction L along the article width direction outer edge 1be of the intermediate portion 1b, respectively, and a pair of leg gather (LG) elastic members 8 including.
  • the LG elastic member 8 enhances the fit of the disposable diaper 1 around the legs.
  • the disposable diaper 1 of the embodiment according to the present disclosure further includes a waist gather (WG) elastic member 10 that extends in the width direction W of the article in the dorsal portion 1c.
  • the WG elastic member 10 enhances the fit of the disposable diaper 1 around the waist.
  • the LG elastic member 8 and the WG elastic member 10 are each provided in an extended state.
  • the intermediate sheet 4b of the embodiment according to the present disclosure does not overlap with the LG elastic member 8 when viewed in the article thickness direction T. Therefore, it is limited that the intermediate sheet 4b prevents the LG elastic member 8 from expanding and contracting. Further, the intermediate sheet 4b of the embodiment according to the present disclosure does not overlap with the WG elastic member 10 when viewed in the article thickness direction T. Therefore, it is limited that the intermediate sheet 4b prevents the WG elastic member 10 from expanding and contracting. Further, the intermediate sheet 4b of the embodiment according to the present disclosure does not overlap with the target tape 1e when viewed in the article thickness direction T. Therefore, it is limited that the intermediate sheet 4b reduces the visibility of the target tape 1e.
  • the L dimension in the article length direction of the intermediate sheet 4b is smaller than the L dimension in the article length direction of the exterior sheet 5 in the unfolded state.
  • the W dimension in the article width direction of the intermediate sheet 4b is smaller than the W dimension in the article width direction of the exterior sheet 5 in the deployed state. Therefore, in the embodiment according to the present disclosure, the first overlapping region 11 in which the exterior sheet 5 and the intermediate sheet 4b overlap each other in the article thickness direction T is a region in which the intermediate sheet 4b extends.
  • the first joint region B1 of the embodiment according to the present disclosure extends in the width direction W of the article while being separated from each other in the length direction L of the article in the unfolded state. Includes the junction region B1W.
  • the first joint region B1 is drawn with hatching.
  • the first junction region B1 includes two first widthwise extending junction regions B1W, B1W.
  • the first non-joining region NB1 is located between the first widthwise extending joining regions B1W and B1W in the article length direction L.
  • the first joining region of the embodiment according to the present disclosure further includes a plurality of first extending joint regions in the length direction, which expand in the article length direction L while being separated from each other in the article width direction W in the deployed state.
  • the first junction region B1 includes two first lengthwise extending junction regions B1L, B1L.
  • the first non-joining region NB1 is located between the first lengthwise extending joining regions B1L and B1L with respect to the article width direction W. That is, the first non-joining region NB1 of the embodiment according to the present disclosure is surrounded by two first widthwise extending joining regions B1W and B1W and two first lengthwise extending joining regions B1L and B1L. Area.
  • the exterior sheet 5 can slip or move relative to the intermediate sheet 4b at least in the article width direction W within the first non-joining region NB1. That is, in the first non-joining region NB1, for example, when the operator presses the exterior sheet 5 against the intermediate sheet 4b with a finger and moves the finger in the article width direction W, the exterior sheet 5 moves against the intermediate sheet 4b. Slip or move relative to the article width direction W. Such slip or relative movement occurs mainly because the exterior sheet 5 located in the first non-joining region NB1 has slack or drape. Further, in the first non-joining region NB1, the exterior sheet 5 is separated from the intermediate sheet 4b in the article thickness direction T. Therefore, when the handler grabs the disposable diaper 1, the exterior sheet 5 is moved by the operator's finger in the article thickness direction T until it reaches the intermediate sheet 4b. Such a movement of the exterior sheet 5 in the article thickness direction T also provides a soft touch.
  • the soft touch of the exterior sheet 5 can be obtained in the first non-bonded region NB1. That is, the outer surface of the disposable diaper 1 is given a soft touch.
  • one first widthwise extending joint region B1W is located at one end of the first overlapping region 11 in the article length direction L.
  • another first widthwise extending joint region B1W is located at the other end of the first overlapping region 11 in the article length direction L.
  • the article length direction dimension DLNB1 of the first non-joining region NB1 is the first from the article length direction outer edge B1WLe of the first width direction extending joining region B1W. It is larger than the article length direction dimension DLML up to the article length direction edge 11Le of the overlapping region 11.
  • the article length direction dimension DLNB1 of the first non-joining region NB1 is larger than the article length direction dimension DLB1W of the first width direction extending joining region B1W.
  • the article length direction dimension DLNB1 of the first non-joining region NB1 can be made larger.
  • the exterior sheet 5 can slip more easily in the article width direction W. Therefore, a soft touch can be obtained more easily.
  • the article length direction dimension DLNB1 of the first non-joint region NB1 is larger than the article width direction dimension DWNB1 of the first non-joint region NB1. This also makes it easier for the exterior sheet 5 to slip in the article width direction W.
  • one first lengthwise extending joint region B1L is one end portion of the first overlapping region 11 in the article width direction W.
  • the other first lengthwise extending joint region B1L is located at the other end of the first overlapping region 11 in the article width direction W.
  • the article width direction dimension DWNB1 of the first non-joining region NB1 is the first overlap from the article width direction outer edge B1LWe of the first lengthwise extending joining region B1L. It is larger than the article width direction dimension DWMW up to the article width direction edge 11 We of the region 11.
  • the article width direction dimension DWNB1 of the first non-joining region NB1 is larger than the article width direction dimension DWB1L of the first lengthwise extending joining region B1L.
  • the article width direction dimension DWNB1 of the first non-joining region NB1 can be made larger.
  • the exterior sheet 5 can slip more easily in the article length direction L. Therefore, a soft touch can be obtained more easily.
  • the first junction region B1 includes three or more first widthwise extending junction regions B1W. In yet another embodiment (not shown), the first junction region B1 includes one or more first lengthwise extending junction regions B1L.
  • the exterior sheet 5 is reliably held by the intermediate sheet 4b because the first joint region B1 includes both the first widthwise extending joint region B1W and the first lengthwise extending joint region B1L. .. Therefore, for example, when the fastening tape 1d is erroneously engaged with the exterior sheet 5, the exterior sheet 5 is restricted from being damaged. That is, the strength of the disposable diaper 1 is increased.
  • the first junction region B1 does not include the first lengthwise extending junction region B1L.
  • the bonding in the first bonding region B1 of the embodiment according to the present disclosure is obtained by an adhesive such as a hot melt adhesive.
  • the hot melt adhesive HMA is applied in a wavy shape along a reference line RL extending in the article length direction L while being slightly separated from each other in the article width direction W. (Omega coating).
  • the hot melt adhesive HMA is applied in a spiral (spiral coating) or dot pattern (dot coating) along a reference line. From a microscopic point of view, a minute region in which the exterior sheet 5 and the intermediate sheet 4b are not joined to each other may be formed between the adhesives. However, this minute region is overwhelmingly smaller than the first non-bonded region NB1, and the slip of the exterior sheet 5 as described above does not occur here.
  • the first non-bonded region NB1 of the embodiment according to the present disclosure does not contain an adhesive.
  • FIG. 5 schematically shows the first joining region B1 and the first non-joining region NB1 of the disposable diaper 1 according to the present disclosure shown in FIGS. 1 and 2.
  • the first junction region B1 includes two first widthwise extending junction regions B1W and three first lengthwise extending junction regions B1L.
  • the two first widthwise extending joint regions B1W are located at both ends of the first overlapping region 11 in the article length direction L.
  • the three first lengthwise extending joint regions B1L are formed on both ends of the first overlapping region 11 in the article width direction W and the central portion of the first overlapping region 11 in the article width direction W. To position.
  • the outer edge B1WLe in the article length direction of the first widthwise extending joint region B1W and the article length direction edge 11Le of the first overlapping region 11 coincide with each other, and therefore the article.
  • the lengthwise dimension DLML (FIG. 3) is zero.
  • the outer edge B1LWe in the article width direction of the first lengthwise extending joint region B1L and the article width direction edge 11We of the first overlapping region 11 coincide with each other, and therefore the article width.
  • the directional dimension DWMW (FIG. 3) is zero. In this way, the exterior sheet 5 is securely held by the intermediate sheet 4b.
  • FIG. 6 shows a schematic plan view of the disposable diaper 1 of the embodiment according to the present disclosure, which is in a folded state in half folded along a bending line FL extending in the width direction W of the article.
  • the bending line FL coincides with the above-mentioned center line CL in the length direction.
  • the disposable diaper 1 in the folded state is divided into the proximal area PR near the folding line FL and the distal area DS far from the folding line FL. There is.
  • the proximal area PR is drawn with dots.
  • the boundary line BL between the proximal area PR and the distal area DS bisects the disposable diaper 1 in the folded state in the article length direction L.
  • the first non-junction region NB1 is located in the proximal zone PR. In one example, as shown in FIG. 6, the first non-junction region NB1 is located within the proximal zone PR and within the distal zone DS. In another embodiment (not shown), the first non-junction region NB1 is located within the proximal zone PR, rather than within the distal zone DS.
  • the position of the first non-junction region NB1 of the embodiment according to the present disclosure can also be explained as follows. That is, in the embodiment according to the present disclosure, as shown in FIG. 7, the width direction center line CW of the disposable diaper 1 and the article width direction W outer edges 3e and 3e of the absorber 3 are provided in the proximal area PR. Two proximal compartments PRp, PRp are partitioned. In FIG. 7, the proximal compartments PRp and PRp are drawn together with the dots.
  • the first non-junction region NB1p is located in each proximal region portion PRp.
  • the article length direction dimension DLp of the first non-joining region NB1p is larger than the article width direction dimension DWp of the first non-joining region NB1p.
  • the first non-junction region NB1p shown in FIG. 7 is a part of the first non-junction region NB1 partitioned by the first overlapping region 11.
  • the first non-junction region NB1p shown in FIG. 7 is the entire first non-junction region NB1 partitioned by the first overlapping region 11.
  • the first non-junction region NB1 and the absorber 3 overlap at least partially in the article thickness direction T.
  • the absorber 3 is soft to the touch. Therefore, when the handler pushes the first non-bonded region NB1 in the article thickness direction T, a softer feel is obtained.
  • the L dimension in the article length direction of the intermediate sheet 4b is smaller than the L dimension in the article length direction of the leak-proof sheet 4a in the unfolded state.
  • the W dimension in the article width direction of the intermediate sheet 4b is smaller than the W dimension in the article width direction of the leak-proof sheet 4a in the deployed state. Therefore, in the embodiment according to the present disclosure, the second overlapping region 12 in which the intermediate sheet 4b and the leak-proof sheet 4a overlap each other in the article thickness direction T is a region in which the intermediate sheet 4b extends.
  • FIG. 8 schematically shows the second joint region B2 of the disposable diaper 1 according to the present disclosure in the unfolded state.
  • the second joint region B2 is drawn with hatching.
  • the adhesive is applied in the same manner as in the first joining region B1.
  • FIG. 9 schematically shows a first junction region B1 and a first non-junction region NB1 and a second junction region B2 according to the present disclosure.
  • the first joint region B1 overlaps with the second joint region B2 when viewed in the article thickness direction T.
  • the first non-joining region NB1 also overlaps with the second joining region B2 when viewed in the article thickness direction T.
  • the adhesive is applied in the same manner as in the first bonding region B1.
  • the exterior sheet 5 of the embodiment according to the present disclosure is joined to the leak-proof sheet 4a and the side flap 6 outside the intermediate sheet 4b in the article length direction L and the article width direction W.
  • the handler eg. parent
  • the absorbent article eg. disposable diaper
  • the handler touches the outer surface of the absorbent article.
  • the operator's finger for example, the thumb tends to face the article length direction L
  • the handler's thumb tends to move in the article width direction W. ..
  • the thumb TB of the handler when the handler grabs the disposable diaper 1 for taking out from the packaging bag, for example, the thumb TB of the handler often faces the article length direction L. Therefore, the thumb TB often moves in the article width direction W, as shown by the arrow in FIG.
  • the first non-bonded region NB1 can slip at least in the article width direction W with respect to the intermediate sheet 4b. Therefore, when the handler grabs the disposable diaper 1 and moves the thumb TB, the handler can obtain a soft touch.
  • the thumb TB of the handler tends to be located in the proximal area PR, particularly in the proximal section PRp. It is known.
  • the first non-junction region NB1 is located in the proximal region PR, particularly in the proximal compartment portion PRp.
  • the article length direction dimension DLp of the first non-bonded region NB1p shown in FIG. 7 is preferably 40 mm or more.
  • the article width direction dimension DWp of the first non-bonded region NB1p is preferably 20 mm or more. If the article length direction DLp of the first non-bonded region NB1p is less than 40 mm, or the article width direction dimension DWp of the first non-bonded region NB1p is less than 20 mm, the exterior sheet 5 is the intermediate sheet 4b.
  • it becomes significantly difficult to slip or move relative to each other and it becomes difficult to obtain a sufficient soft touch.
  • it becomes difficult for the operator's finger holding the disposable diaper 1 to be located in the first non-joining region NB1p.
  • the exterior sheet 5 slips or moves relative to the soft-touch intermediate sheet 4b formed of the non-woven fabric. Therefore, a softer touch can be obtained.
  • SB non-woven fabric and SMS non-woven fabric have relatively little fluffing on the surface. Therefore, when the intermediate sheet 4b is formed of the SB non-woven fabric or the SMS non-woven fabric, the exterior sheet 5 slips or moves relative to the intermediate sheet 4b smoothly. Therefore, a softer touch can be obtained.
  • the air-through non-woven fabric has a relatively large amount of fluff on the surface.
  • the entire intermediate sheet 4b is joined to the leak-proof sheet 4a. Therefore, the strength of the disposable diaper 1 is increased. That is, in the embodiment according to the present disclosure, the soft touch of the disposable diaper 1 is obtained, and the strength of the disposable diaper 1 is enhanced.
  • the first joint region B1 and the second joint region B2 and the indicator 7 are at least partially overlapped with each other when viewed in the article thickness direction T.
  • the leak-proof sheet 4a, the intermediate sheet 4b and the exterior sheet 5 located on the outside or the non-skin side of the indicator 7 are separated from each other in the article thickness direction T, the leak-proof sheet 4a, the intermediate sheet 4b and the exterior sheet 5 are separated from each other. This may reduce the visibility of the indicator 7.
  • the exterior sheet 5, the intermediate sheet 4b, and the leak-proof sheet 4a, which overlap with the indicator 7 when viewed in the article thickness direction T, are joined to each other and are in close contact with each other. As a result, good visibility of the indicator 7 is ensured.
  • the portion of the exterior sheet 5 adjacent to the LG elastic member 8 is joined to the intermediate sheet 4b by the first lengthwise extending region B1L. Further, the portion of the exterior sheet 5 adjacent to the WG elastic member 10 is joined to the intermediate sheet 4b by the first widthwise extending region B1W. In this case, if the portion of the exterior sheet 5 is not joined to the intermediate sheet 4b, relatively large wrinkles may be formed in the portion of the exterior sheet 5 when the elastic members 8 and 10 contract. In the embodiment according to the present disclosure, wrinkles are formed in the portion of the exterior sheet 5 but are limited. Therefore, a good appearance of the disposable diaper 1 is ensured.
  • 11 and 12 show another embodiment according to the present disclosure.
  • a second joint region B2 in which the intermediate sheet 4b and the leak-proof sheet 4a are joined to each other, and the intermediate sheet 4b and the leak-proof sheet 4a are provided.
  • the intermediate sheet 4b can slip or move relative to the leak-proof sheet 4a at least in the article width direction W.
  • Such slip or relative movement occurs mainly because the intermediate sheet 4b located in the second non-bonded region NB2 has slack or drape.
  • the intermediate sheet 4b in the NB2 slips or moves relative to the leak-proof sheet 4a. Therefore, a softer touch can be obtained.
  • the first non-joining region NB1 and the second non-joining region NB2 overlap each other at least partially in the article thickness direction T, and the first joining region NB1
  • the region B1 and the second junction region B2 overlap each other at least partially.
  • all of the second joint region B2 overlaps with the first joint region B1 and all of the second non-joint region NB2. Overlaps the first non-junction region NB1.
  • the portion of the exterior sheet 5 slipperable with respect to the intermediate sheet 4b and the portion of the intermediate sheet 4b slipperable with respect to the leak-proof sheet 4a are aligned with each other in the article thickness direction T.
  • the slip of the intermediate sheet 4b with respect to the leak-proof sheet 4a is not limited by the exterior sheet 5. Alternatively, therefore, a softer feel is obtained.
  • first non-joining region NB1 and the second joining region B2 are at least partially overlapped with each other and the first joining region B2 is viewed in the article thickness direction T.
  • the region B1 and the second non-junction region NB2 overlap each other at least partially.
  • a part of the second bonding region B2 (other than the region B2Z) overlaps with the first non-bonding region NB1 when viewed in the article thickness direction T, and the second All of the non-junction region NB2 of the above overlaps with the first junction region B1.
  • the portion of the exterior sheet 5 slipperable to the intermediate sheet 4b and the portion of the intermediate sheet 4b joined to the leak-proof sheet 4a are aligned with each other in the article thickness direction T and joined to the intermediate sheet 4b.
  • the portion of the exterior sheet 5 and the portion of the intermediate sheet 4b slippable with respect to the leak-proof sheet 4a are aligned with each other in the article thickness direction T.
  • the slip of the intermediate sheet 4b with respect to the leak-proof sheet 4a can be limited by the exterior sheet 5. Therefore, the strength of the disposable diaper 1 is increased while providing a soft touch.
  • the outer surface of the disposable diaper 1 is soft to the touch in the order of the embodiments shown in FIGS. 11 and 12, the embodiments shown in FIGS. 13 and 14, and the embodiments shown in FIGS. 8 and 9.
  • the strength of the disposable diaper 1 is higher in the order of the embodiment shown in FIGS. 8 and 9, the embodiment shown in FIGS. 13 and 14, and the embodiment shown in FIGS. 11 and 12.
  • the backsheet 4 does not include the intermediate sheet 4b, but includes the leakproof sheet 4a. Therefore, when the back sheet 4 is expressed so as to include the embodiment including the intermediate sheet 4b and the embodiment not including the intermediate sheet 4b, the absorbent article 1 of the embodiment according to the present disclosure is the exterior sheet 5 when viewed in the article thickness direction T. In the first overlapping region 11 where the back sheet 4 and the back sheet 4 overlap each other, the first joining region B1 where the exterior sheet 5 and the back sheet 4 are joined to each other, and the exterior sheet 5 and the back sheet 4 are mutually joined.
  • a plurality of unjoined first non-joining regions NB1 are partitioned, and the first joining region B1 expands in the article width direction W while being separated from each other in the article length direction L in the unfolded state.
  • the first widthwise extending junction region B1W is included, and the first non-joining region NB1 is located between the first widthwise extending junction regions B1W in the unfolded state with respect to the article length direction L, and the first It means that the exterior sheet 5 is an absorbent article 1 that can slip at least in the article width direction W with respect to the back sheet 4 in the non-bonded region NB1 of the above.

Landscapes

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

Abstract

L'invention vise à conférer un toucher doux à la surface extérieure d'un article absorbant. À cet effet, l'invention concerne une couche jetable (1) comprenant un absorbeur, une feuille étanche imperméable aux liquides, une feuille intermédiaire et une feuille extérieure. Une première région de chevauchement à l'endroit où la feuille extérieure et la feuille intermédiaire se chevauchent dans le sens de l'épaisseur de l'article est divisée en une première région liée, à l'endroit où la feuille extérieure et la feuille intermédiaire sont liées l'une à l'autre, et une première région non liée (NB1), à l'endroit où la feuille extérieure et la feuille intermédiaire ne sont pas liées l'une à l'autre. Dans la première région non liée, la feuille extérieure peut glisser par rapport à la feuille intermédiaire, au moins dans le sens (W) de la largeur de l'article.
PCT/JP2020/015732 2019-06-20 2020-04-07 Article absorbant WO2020255541A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202080037636.7A CN113853188B (zh) 2019-06-20 2020-04-07 吸收性物品

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-114942 2019-06-20
JP2019114942A JP7055115B2 (ja) 2019-06-20 2019-06-20 吸収性物品

Publications (1)

Publication Number Publication Date
WO2020255541A1 true WO2020255541A1 (fr) 2020-12-24

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PCT/JP2020/015732 WO2020255541A1 (fr) 2019-06-20 2020-04-07 Article absorbant

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Country Link
JP (1) JP7055115B2 (fr)
CN (1) CN113853188B (fr)
WO (1) WO2020255541A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005103178A (ja) * 2003-10-02 2005-04-21 Kao Corp 吸収性物品
JP2008054991A (ja) * 2006-08-31 2008-03-13 Daio Paper Corp 使い捨て紙おむつ
JP2008228834A (ja) * 2007-03-16 2008-10-02 Kao Corp パンツ型使い捨ておむつ
JP2012187152A (ja) * 2011-03-08 2012-10-04 Unicharm Corp 使い捨て着用物品
JP2018518240A (ja) * 2015-05-12 2018-07-12 ザ プロクター アンド ギャンブル カンパニー 改善されたコア−バックシート接着を有する吸収性物品

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5761949B2 (ja) * 2010-09-29 2015-08-12 ユニ・チャーム株式会社 使い捨て着用物品
JP6039956B2 (ja) * 2011-08-09 2016-12-07 花王株式会社 パンツ型吸収性物品
JP6192046B2 (ja) * 2013-12-25 2017-09-06 花王株式会社 使い捨ておむつ
JP6411309B2 (ja) * 2015-11-09 2018-10-24 ユニ・チャーム株式会社 吸収性物品

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005103178A (ja) * 2003-10-02 2005-04-21 Kao Corp 吸収性物品
JP2008054991A (ja) * 2006-08-31 2008-03-13 Daio Paper Corp 使い捨て紙おむつ
JP2008228834A (ja) * 2007-03-16 2008-10-02 Kao Corp パンツ型使い捨ておむつ
JP2012187152A (ja) * 2011-03-08 2012-10-04 Unicharm Corp 使い捨て着用物品
JP2018518240A (ja) * 2015-05-12 2018-07-12 ザ プロクター アンド ギャンブル カンパニー 改善されたコア−バックシート接着を有する吸収性物品

Also Published As

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JP2021000218A (ja) 2021-01-07
CN113853188B (zh) 2022-11-01
JP7055115B2 (ja) 2022-04-15
CN113853188A (zh) 2021-12-28

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