WO2020105278A1 - Article absorbant - Google Patents

Article absorbant

Info

Publication number
WO2020105278A1
WO2020105278A1 PCT/JP2019/038012 JP2019038012W WO2020105278A1 WO 2020105278 A1 WO2020105278 A1 WO 2020105278A1 JP 2019038012 W JP2019038012 W JP 2019038012W WO 2020105278 A1 WO2020105278 A1 WO 2020105278A1
Authority
WO
WIPO (PCT)
Prior art keywords
absorbent article
basis weight
stool
width direction
low basis
Prior art date
Application number
PCT/JP2019/038012
Other languages
English (en)
Japanese (ja)
Inventor
友美 磯貝
拓也 深山
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
Publication of WO2020105278A1 publication Critical patent/WO2020105278A1/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
    • 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
    • A61F13/53—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 absorbing medium
    • 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
    • A61F13/53—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 absorbing medium
    • A61F13/531—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 absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532—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 absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • 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
    • A61F13/53—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 absorbing medium
    • A61F13/534—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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537—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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • 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
    • A61F13/53—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 absorbing medium
    • A61F13/539—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 absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
    • 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.
  • An example of an absorbent article is a disposable diaper.
  • a pocket having at least one of a low basis weight portion having a lower basis weight of the absorbent material and a non-weightless portion having no absorbent material is provided in a central portion in the width direction of the absorbent body, and the absorbent body and the liquid
  • a disposable diaper is disclosed in which an excretion display portion that changes color due to contact with the excreted liquid is provided between the permeable sheet and the non-pocket portion.
  • a hydrophilic composition that visually changes when contacted with moisture is arranged at a predetermined portion between the absorbent core and the back sheet, and corresponds to the portion where the composition is arranged. Then, an absorbent article in which the absorbent core is provided with a portion having a smaller absorption capacity than other portions is disclosed.
  • the excretion display portion is arranged in the non-pocket portion located beside the pocket portion of the absorbent body, which is composed of the low weighted portion or the non-weighted portion, the urine absorbs the absorbent body during urination. Although it can pass through and reach the excretion display part, at the time of defecation, it is difficult to pass through the high basis weight part of the absorber due to the high viscosity of feces, and there is a possibility that the excretion display part cannot be reached.
  • the composition arranged corresponding to the low absorption part having a smaller absorption capacity than other parts is a hydrophilic composition, It also reacts with water in the stool, and it is impossible to distinguish whether urine or stool was excreted from the outer surface of the absorbent article. Further, when urination is performed first and the composition reacts, the reaction becomes difficult for subsequent defecation, and defecation may not be detected.
  • the present invention has been made in view of the conventional problems as described above, and an object thereof is to allow stool moisture to smoothly pass through the absorber and to reach the stool indicator. To provide an absorbent article.
  • the main invention for achieving the above-mentioned object is to have a predetermined reaction by contacting with a liquid-absorbent absorber and feces, which has a longitudinal direction, a width direction and a thickness direction in a plan view of a developed state.
  • the absorbent article having a stool indicator that presents the absorbent body has a low basis weight portion in a central portion in the width direction, and a basis weight of the low basis weight portion is equal to the low basis weight portion.
  • the stool indicator is provided on the non-skin side of the absorbent body in the thickness direction, and the stool indicator and the low basis weight portion.
  • the absorbent article has an overlapping portion in the longitudinal direction and the width direction.
  • an absorbent article capable of allowing stool moisture to smoothly permeate through the absorber and allow stool moisture to reach the stool indicator.
  • FIG. 2 is a sectional view taken along line AA shown in FIG. 1. It is a partial expanded sectional view showing another composition of low basic weight part 21A. It is a figure which shows an example of the pattern of the urine indicator 40 and the stool indicator 50. It is a figure which shows the modification of the diaper 1.
  • An absorbent article having a longitudinal direction, a width direction, and a thickness direction in a plan view in a developed state, and having a liquid-absorbent absorbent body and a stool indicator that exhibits a predetermined reaction by contacting with stool.
  • the absorber has a low basis weight portion in the center portion in the width direction, and the basis weight of the low basis weight portion is a basis weight of an area adjacent to the low basis weight portion from the outside in the width direction.
  • the stool indicator is provided on the non-skin side of the absorbent body in the thickness direction, and the stool indicator and the low basis weight portion overlap in the longitudinal direction and the width direction.
  • the absorbent body by providing the absorbent body with a low basis weight portion having a low basis weight and disposing the fecal indicator on the non-skin side of the low basis weight portion in the thickness direction, the moisture content of feces is reduced.
  • the absorbent body can be smoothly transmitted through the basis weight portion. As a result, it is possible to improve the amount of water in the stool reaching the stool indicator and effectively react the stool indicator.
  • the low basis weight portion has a region where the basis weight is zero at least in the center portion in the width direction.
  • the moisture of feces easily permeates the region where the basis weight is zero and is more easily drawn into the lower layer.
  • the reaction of the stool indicator can be enhanced.
  • the low basis weight portion has a high-density region having a higher density than a density of a region adjacent to the low basis weight portion from the outside in the width direction, at least in a part. Is desirable.
  • the stool indicator is provided on the non-skin side of the high-density region in the thickness direction, and the stool indicator and the high-density region are in the longitudinal direction and the width. It is desirable to have portions that overlap in direction.
  • stool is easily drawn into the high-density region due to the dense and dense structure of the high-density region of the low basis weight portion, and the stool indicator is arranged so as to correspond to the high-density region in the thickness direction.
  • the stool retractability is improved, and the stool indicator can be reacted more effectively.
  • the center of the low basis weight portion is located rearward of the center of the absorbent article in the longitudinal direction.
  • the low basis weight portion is provided on the rear side of the longitudinal center of the absorbent article, which is a region where the wearer's anus faces, so that faeces can be efficiently pulled in.
  • the front end of the low basis weight portion is located behind the center of the absorbent article in the longitudinal direction.
  • the low grammage portion has an area arranged rearward of the center of the absorbent article in the longitudinal direction, the area being located in front of the center of the absorbent article in the longitudinal direction.
  • the stool indicator is larger than the area arranged on the rear side of the longitudinal center of the absorbent article, and the stool indicator is on the front side of the longitudinal center of the absorbent article. It is desirable that the area is larger than the area arranged in.
  • the area of the low grammage portion is larger on the rear side than the center in the longitudinal direction of the absorbent article, where the wearer's anus position is opposed, so that the stool can be pulled in more reliably.
  • the stool indicator is arranged more in the longitudinal rear region of the absorbent article near the defecation position, the stool indicator can effectively react over a wide range.
  • Such an absorbent article which has a back sheet provided on the non-skin side in the thickness direction with respect to the absorber, the stool indicator, in the thickness direction, the low basis weight portion and the back. It is desirable that it is located between the seats and changes visually when it comes into contact with stool.
  • the presence or absence of defecation can be recognized quickly and easily from the outer surface of the absorbent article by visually changing the stool indicator in response to the wearer's stool.
  • Such an absorbent article further comprising a second sheet arranged in contact with the absorbent body in the thickness direction, the second sheet and the low basis weight portion in the longitudinal direction and the width direction. It is desirable to have overlapping portions.
  • the length of the stool indicator in the longitudinal direction is longer than the length of the low basis weight portion in the longitudinal direction.
  • the stool indicator is located inside both ends of the low basis weight part in the longitudinal direction and the width direction.
  • Such an absorbent article further comprising a top sheet provided on the skin side in the thickness direction with respect to the absorber, and a second sheet provided on the non-skin side in the thickness direction with respect to the top sheet.
  • the stool indicator is arranged between the low basis weight portion of the absorber and the back sheet, and in the width direction, in a region corresponding to the low basis weight portion, It is desirable that the top sheet and the second sheet are joined in the thickness direction.
  • the absorbent body has an absorbent core and a core wrap sheet that covers a skin side surface and a non-skin side surface of the absorbent core, and in the width direction, the low basis weight portion. It is desirable that the second sheet and the core wrap sheet are joined in the thickness direction in corresponding regions.
  • a space is generated in the thickness direction between the second sheet and the core wrap sheet by joining the second sheet and the core wrap sheet in the region corresponding to the low basis weight portion.
  • Such an absorbent article having a backsheet provided on the non-skin side in the thickness direction with respect to the absorber, in the width direction, in the region corresponding to the low basis weight portion, the core
  • the wrap sheet and the back sheet are joined in the thickness direction.
  • a space is generated in the thickness direction between the core wrap sheet and the back sheet by joining the core wrap sheet and the back sheet in the region corresponding to the low basis weight portion. Instead, the water in the stool that has permeated the absorber easily reaches the stool indicator.
  • the low basis weight portion of the absorbent body has a region where the basis weight is zero in at least the central portion in the width direction, and the basis weight is zero in the width direction. It is preferable that the top sheet, the second sheet, the core wrap sheet, and the back sheet are joined in the thickness direction in a region corresponding to the region.
  • a space is not formed between the sheets in the thickness direction, and it is possible to improve the ability of the feces to draw moisture to the non-skin side in the thickness direction.
  • the core wrap sheet has a skin side portion covering a skin side surface of the absorbent core and a non-skin side portion covering a non-skin side surface, and in the width direction, the basis weight is It is desirable that the skin side portion and the non-skin side portion of the core wrap sheet are joined in the thickness direction in a region corresponding to a region of zero.
  • a space is not formed in the thickness direction between the skin side portion and the non-skin side portion of the core wrap sheet, and the ability to draw the moisture of feces to the thickness direction non-skin side is reduced. Can be improved.
  • the low basis weight portion of the absorbent body has a region where the basis weight is zero at least in the center portion in the width direction, and the feces indicator and the region where the basis weight is zero. And has a portion that overlaps in the longitudinal direction and the width direction, on the non-skin side of the thickness direction of the absorber, a pair of a reaction different from the predetermined reaction by contact with urine It is desirable that a urine indicator is provided, and the non-low basis weight portion that is a portion other than the low basis weight portion in the absorber and the pair of urine indicators have portions that overlap in the longitudinal direction and the width direction. ..
  • the diaper 1 of the present embodiment is a so-called open type disposable diaper, and has a front part 3, a crotch part 5, and a rear part 7, as shown in FIG.
  • the front part 3 is a part to be located on the front part (ventral side, front waistline) of the wearer.
  • the rear part 7 is a part which will be located in a rear part (back side, a back waistline) of a wearer.
  • the crotch portion 5 is a portion to be located between the front portion 3 and the rear portion 7.
  • each direction is defined as shown in Fig. 1. That is, in a plan view in the unfolded state, the direction from the front part 3 to the rear part 7 is the “longitudinal direction”, and the direction orthogonal to the longitudinal direction is the “width direction”.
  • the line BB shown in FIG. 1 is a line showing the center of the diaper 1 in the longitudinal direction.
  • the direction orthogonal to the longitudinal direction and the width direction is the "thickness direction”
  • the side of the wearer's skin is the "skin side”
  • the opposite side is the "non-skin side”. ..
  • the diaper 1 has a central band-shaped region 12, side flaps 14, leg gathers 16, and leg side gathers 17.
  • a fastening tape 30 is attached to each of the pair of side flaps 14 at the rear portion 7.
  • the central strip-shaped region 12 is a strip-shaped region formed by the front portion 3, the crotch portion 5, and the rear portion 7 and located at the center portion in the width direction (see FIG. 1).
  • the central band-shaped region 12 is a part that absorbs and holds liquid such as urine excreted by the wearer.
  • the central band-shaped region 12 has a vertically long shape (a shape along the longitudinal direction) that includes the liquid retaining absorbent body 21.
  • the central band-shaped region 12 is mainly composed of an absorbent body 21, a liquid-permeable topsheet 22 that covers the absorbent body 21 from the skin side, and a liquid-impermeable backsheet 23 that covers the absorbent body 21 from the non-skin side. , And an exterior sheet 27 (for example, non-woven fabric) that forms the exterior of the diaper 1 (see FIG. 2).
  • the central strip 12 is further provided with a liquid-permeable second sheet 35, but the second sheet 35 may not necessarily be provided.
  • the absorbent body 21 of the present embodiment covers the absorbent core 24 that absorbs excrement such as urine, and the absorbent core 24 from both the skin side and the non-skin side in the thickness direction. It has a liquid-permeable core wrap sheet 25.
  • suitable materials for the core wrap sheet 25 include tissue paper and non-woven fabric.
  • the absorber 21 (absorbent core 24) is arranged over the front part 3, the crotch part 5, and the rear part 7.
  • the absorbent core 24 of the present embodiment has a substantially hourglass shape in plan view as an example of the predetermined shape.
  • the absorbent core 24 may be provided at least in the crotch portion 5.
  • liquid absorbent material forming the absorbent core 24 for example, liquid absorbent fibers such as pulp fibers and liquid absorbent particles such as super absorbent polymer (so-called SAP) can be used. Further, it may contain a liquid absorbent material other than the liquid absorbent fiber and the liquid absorbent granular material.
  • a pair of elastic members 28 around the leg that can expand and contract in the longitudinal direction.
  • the leg elastic members 28 are members that impart elasticity to the central band-shaped region 12 of the crotch portion 5.
  • the leg-surrounding elastic member 28 is attached in a state of being elongated in the longitudinal direction. As a result, the leg elastic members 28 exert a contracting force along the longitudinal direction on the crotch portion 5 of the central band-shaped region 12.
  • the side flaps 14 are portions located on both sides in the width direction of the central belt-shaped region 12.
  • the side flaps 14 are formed over the front portion 3, the crotch portion 5, and the rear portion 7 (see FIG. 1).
  • the length (width) of the side flaps 14 in the crotch portion 5 in the width direction is smaller than the length (width) of the side flaps 14 in the front portion 3 and the rear portion 7 in the width direction.
  • the side flap 14 is mainly composed of a skin side sheet 26 and a back sheet 23 (see FIG. 2).
  • the skin-side sheet 26 is a member on the skin side formed over the front portion 3, the crotch portion 5, and the rear portion 7, and is made of, for example, a nonwoven fabric.
  • the skin side sheet 26 is also a member that constitutes the leg side gathers 17 (three-dimensional gathers), and a portion outside the skin side sheet 26 (a portion outside the joint portion 26A shown by the broken line in FIG. 1) is the side flap 14. Make up.
  • the pair of side flaps 14 are provided with leg gather elastic members 15 that expand and contract along the longitudinal direction.
  • the leg gather elastic member 15 is an elastic member that expands and contracts along the longitudinal direction, and is a member that imparts elasticity to the leg openings when the diaper 1 is worn. That is, the leg gather elastic member 15 is a leg elastic member that fits the leg run portion of the diaper 1 to the wearer's leg. Further, the leg gathers 16 are configured by the leg gather elastic members 15 imparting elasticity to the skin side sheet 26 and the back sheet 23 of the crotch portion 5.
  • the leg side gathers 17 are three-dimensional gathers that prevent liquid from leaking from the gap between the legs.
  • the pair of leg side gathers 17 are formed along the longitudinal direction over the front portion 3, the crotch portion 5, and the rear portion 7 (see FIG. 1).
  • the leg side gathers 17 are formed inside the side flaps 14 so as to cover both edges of the central band-shaped region 12.
  • the leg side gathers 17 are mainly composed of the inner part in the width direction of the skin side sheet 26 (see FIG. 2).
  • the inner edge of the skin-side sheet 26 of the crotch portion 5 has elasticity due to the leg side gather elastic member 18 such as thread rubber.
  • the skin-side sheet 26 is joined along the longitudinal direction at a joining portion 26A between the central strip 12 and the side flap 14.
  • the region inside the joint portion 26A of the skin-side sheet 26 rises to the wearer's skin side with the joint portion 26A as the base point, and the excrement or the like is discharged laterally. Control leakage.
  • the fastening tapes 30 are arranged on both sides in the width direction of the side flaps 14 in the rear part 7 of the diaper 1 (see FIG. 1). Then, by locking each fastening tape 30 to a target tape 29 (FIG. 1) described later, a waist opening and leg openings of the diaper 1 are formed, and the position of the diaper 1 with respect to the wearer's body (body). Can be fixed.
  • a target tape 29 is provided on the front part 3 of the central strip 12 (see FIG. 1).
  • the target tape 29 is arranged on the non-skin side of the back sheet 23 of the front portion 3.
  • the target tape 29 is a member that can be engaged with the fastening tape 30, and is made of, for example, non-woven fabric.
  • the target tape 29 constitutes a target area for engaging the fastening tape 30.
  • the target region may be directly formed on the outermost non-woven fabric forming the back sheet 23. Then, the diaper 1 is worn by engaging the fastening tape 30 with the target tape 29.
  • the diaper 1 of the present embodiment has a stool indicator 40 at the center of the diaper 1 in the width direction, and further, is provided with a pair of urine indicators 50 spaced apart from the stool indicator 40 in the width direction outside. (See Figure 1).
  • the stool indicator 40 and the urine indicator 50 are arranged on the non-skin side of the absorber 21 in the thickness direction.
  • the urine indicator 50 is configured as an indicator including a pH indicator that is adopted in a conventional general diaper.
  • the urine indicator 50 detects that urine is excreted by exhibiting a predetermined reaction (for example, a color reaction) by contacting urine with the pH of urine as a reaction factor (urine indicator reaction factor). .. Details of the flight indicator 40 will be described later.
  • the stool indicator 40 is a stool indicator for absorbent articles such as the diaper 1, and causes a predetermined reaction (for example, color reaction) by contacting with a predetermined reaction factor (stool indicator reaction factor) contained in the stool. By presenting it, it is detected that the feces have been discharged.
  • the stool indicator 40 includes a chemical component that detects a biological substance in stool, and the response of this chemical component to stool and the response to urine are different from each other, so that only stool discharge is detected. It is possible.
  • the biological substance detected by the chemical component contained in the stool indicator 40 is a protein
  • a pH indicator as the chemical component.
  • a protein has a structure in which amino acids are polymerized, and since it has acidic and basic functional groups at both ends and side chains of the main chain of the protein, when a certain amount of protein or more is present,
  • the pH indicator can be changed in color (protein error method).
  • the pH indicator responds to stool by detecting undigested protein derived from food in stool, protein secreted from intestinal bacteria, and the like.
  • specific pH indicators for example, tetraphenol blue, bromophenol blue, bromocresol green, thymolphthalein and the like can be used.
  • the pH indicator is safe for the skin and has excellent storage stability in the presence of moisture and sunlight.
  • the stool indicator 40 it is desirable that the chemical components contained in the stool indicator 40 respond to stool and not to urine so as to prevent false detection of whether the excrement is stool or urine. .. Therefore, the stool indicator 40 in the present embodiment shows a reaction such as a color reaction in response to a stool indicator reaction factor (protein or the like) having a predetermined concentration or more, and when the stool indicator reaction factor is smaller than the predetermined concentration, The reaction is difficult to occur.
  • a stool indicator reaction factor protein or the like
  • the stool indicator 50 responds to a protein of 150 mg / L or more, and more preferably a protein of 5,000 mg / L or more by the protein error method using a pH indicator. It is more preferable to respond to 10,000 mg / L or more of protein.
  • the application amount of the pH indicator per 1 cm 2 in the stool indicator 50 may be 16.3 ⁇ g.
  • the applied amount of the pH indicator per 1 cm 2 in the stool indicator 50 is preferably 0.5 ⁇ g, and the stool indicator 50 has 10,000 mg / L.
  • the applied amount of the pH indicator per 1 cm 2 in the stool indicator 50 is 0.25 ⁇ g.
  • the range in which the stool indicator 40 can react with stool is relatively smaller than the range in which the stool indicator 40 can react with stool. be able to.
  • the reaction of the stool indicator 40 on stool and the reaction of the stool indicator 40 on urine can be made different. This makes it difficult for the stool indicator 40 to react with urine.
  • the stool indicator 40 does not limit the above-mentioned protein as a reaction factor.
  • it may be made to react with substances derived from feces such as intestinal bacteria contained in feces, ionic strength of feces correlated with specific gravity of feces, and bilirubin of bile pigment. These components are generally not contained in urine, or the amount and specific gravity contained in urine are very small as compared with stool. Therefore, as in the case where a protein is used as a reaction factor, the stool indicator 40 is less likely to react with urine and is more likely to react with stool. Therefore, feces excreted in the diaper 1 can be accurately detected.
  • the stool indicator 40 is formed by applying an adhesive (for example, a hot melt adhesive HMA) containing the above-mentioned chemical component (for example, a pH indicator) to the skin side surface of the back sheet 23 of the diaper 1.
  • a hot melt adhesive is applied to a strip-shaped (or linear) region along the longitudinal direction from the crotch portion 5 to the rear portion 7 at the center in the width direction by using a coater.
  • the stool indicator 40 is formed by applying (HMA). According to such coater coating, it becomes possible to form the stool indicator 40 having a uniform film thickness and less unevenness, and the stool detection accuracy can be improved. Further, the manufacturing cost can be suppressed.
  • the urine indicator 50 can be formed in the same manner.
  • the stool indicator 40 may be formed by mixing a chemical component with ink and printing-coating the back sheet 23 or the core wrap sheet 12. Further, the stool indicator 40 is formed by joining and fixing a filter paper or a non-woven fabric impregnated with a chemical component to the back sheet 23 or the core wrap sheet 12 with a hot melt adhesive (HMA) or ultrasonic welding. Is also good.
  • HMA hot melt adhesive
  • the stool indicator 40 is arranged on the non-skin side of the absorbent body 21 to detect stool.
  • stool usually has high viscosity and low fluidity, It is difficult to penetrate the body in the thickness direction. Therefore, when the stool indicator 40 is provided on the non-skin side of the absorbent body 21, it may be difficult for stool to reach the stool indicator 40.
  • the absorber 21 has the low basis weight portion 21A in the center portion in the width direction (see FIG. 2).
  • the grammage is lower than the grammage of the regions 21B and 21B adjacent to the low grammage portion 21A from the outer side in the width direction.
  • the basis weight is a mass per unit area.
  • the grammage of the low grammage portion 21A of the present embodiment is preferably about 0 to 200 g / m 2 , and more preferably about 100 g / m 2 .
  • the grammage of each of the adjacent regions 21B is preferably about 370 g / m 2 . If the basic weight of the low basic weight portion 21A exceeds 200 g / m 2 , the basic weight is too high, and it becomes difficult for feces to pass through the low basic weight portion 21A.
  • the above-mentioned stool indicator 40 is provided on the non-skin side in the thickness direction of the absorber 21, as shown in FIG. Further, the stool indicator 40 and the low basis weight portion 21A have a portion overlapping in the longitudinal direction and the width direction, as shown in FIG. As in the present embodiment, by placing the stool indicator 40 on the non-skin side of the low basis weight portion 21A in the thickness direction (see FIG. 2), the moisture of the stool passes through the low basis weight portion 21A and the absorber 21. Can be transmitted smoothly. Thereby, it is possible to improve the water content of the stool to reach the stool indicator 40 and effectively react the stool indicator 40.
  • the low basis weight portion 21A may have, at least in part, a high density area 21A ′ having a higher density than the areas 21B and 21B adjacent to the low basis weight portion 21A from the outer side in the width direction. Preferred (see Figure 3).
  • the density is measured by calculating a basis weight (g / m 2 ) obtained by adding pulp fibers and SAP contained in the absorbent body 21, and measuring the thickness (mm) of the absorbent body 21 in the relevant portion. Then, the density is calculated from the values of the basis weight and the thickness.
  • the density of the low basis weight portion 21A 'of the present embodiment is preferably 200 ⁇ 900kg / m 3, more preferably 333kg / m 3 approximately.
  • the density of the regions 21B and 21B is preferably about 185 kg / m 3 .
  • the stool indicator 40 is arranged so as to have a portion on the non-skin side of the above-mentioned high-density region 21A ′ in the thickness direction and overlapping with the high-density region 21A ′ in the longitudinal direction and the width direction. ing.
  • the stool indicator 40 is raised in the thickness direction.
  • FIG. 3 is a partially enlarged cross-sectional view showing another configuration of the low basis weight portion 21A (absorbent core 24).
  • the low basis weight portion 21A may have a region 21C (hereinafter, also referred to as “slit 21C”) in which the basis weight is zero, at least in the center portion in the width direction.
  • slit 21C a region 21C in which the basis weight is zero, at least in the center portion in the width direction.
  • a pair of high-density areas 21A ' are provided in the low basis weight portion 21A, outside the slit 21C in the width direction and along the longitudinal direction.
  • the dense structure is formed by providing the high-density regions 21A ′ in the low-basis-weight part 21A, but also the high-density regions 21A ′ gradually reduce the basic weight toward the center in the width direction as shown in FIG. Since it has the inclined slope, it becomes easier to draw in the water from the stool toward the central portion in the width direction. Furthermore, by providing a region 21C (slit 21C) in which the basis weight is zero at the center portion in the width direction of the low basis weight portion 21A, the moisture of feces is drawn into the lower layer in the thickness direction by passing through the region 21C. Will be done. The improvement of the pulling property to the lower layer consequently improves the reaction of the stool indicator 40.
  • the high-density region 21A 'in FIG. 3 has a gradient so that the basis weight becomes lower toward the center in the width direction, but the present invention is not limited to this.
  • the present invention is not limited to this.
  • the basis weight is lower than the basis weights of the areas 21B and 21B that are adjacent from the outer side in the width direction, even if it has a predetermined uniform basis weight, or partially in the basis weight. The amount may be changed.
  • the slit 21C and the stool indicator 40 described above have a portion that overlaps in the longitudinal direction and the width direction.
  • the water content of the feces can pass through the region (slit 21C) in which the basic weight is zero in the low basic weight portion 21A, and smoothly passes through the absorber 21.
  • a pair of urine indicators 50 are provided apart from the feces indicator 40 in the width direction outer side. ing.
  • the non-low basis weight portion (21B) that is a portion other than the low basis weight portion 21A of the absorbent body 21 and the pair of urine indicators 50 have a portion that overlaps in the longitudinal direction and the width direction.
  • the center of the low basis weight portion 21A in the longitudinal direction is located behind the line BB in FIG. 1 showing the center in the longitudinal direction of the diaper 1. Is preferred.
  • the rear region in the longitudinal direction of the diaper 1 is a region where the wearer's anus faces, and by providing the low basis weight portion 21A in the region, faeces can be efficiently pulled in.
  • the front end of the low basis weight portion 21A in the longitudinal direction may be located rearward of the longitudinal center of the diaper 1 (line BB in FIG. 1).
  • the low grammage portion 21A is arranged only on the rear side in the longitudinal direction of the diaper 1, and at the time of defecation and urination, high absorbability is maintained at the center in the longitudinal direction where both feces and urine easily flow. be able to.
  • the low grammage portion 21A is arranged in the longitudinal direction in such a manner that the area arranged on the rear side of the line BB of FIG. 1 which is the center of the diaper 1 is arranged on the front side of the line BB. It is preferably larger than the area. That is, in the longitudinal direction of the diaper 1, it is preferable that a large amount of the low grammage portion 21A be present on the rear side. Thereby, in the rear region of the diaper 1 corresponding to the wearer's anus position, more feces and moisture of the feces can permeate the low basis weight portion 21A, and the feces withdrawal property is improved.
  • the area arranged in the longitudinal direction behind the line BB in FIG. 1 which is the center of the diaper 1 is the area arranged in front of the line BB. Is preferably larger than. The more the stool indicator 40 is arranged in the rear region of the diaper 1 close to the defecation position, the stool indicator 40 can effectively react over a wide range.
  • the second sheet 35 is arranged on the non-skin side of the top sheet 22 in the thickness direction and in contact with the core wrap sheet 25 of the absorbent body 21 (see FIG. 2). Further, the second sheet 35 and the low basis weight portion 21A have a portion overlapping in the longitudinal direction and the width direction (see FIG. 1).
  • An example of the second sheet 35 is a mixed cotton fiber sheet of rayon and pulp.
  • the basis weight (g / m2) of the sheet is preferably about 35 g / m2, and the first layer has a three-layer structure of 100% rayon, the second layer has 100% pulp fibers, and the third layer has 100% rayon. There is.
  • the second sheet 35 is preferably made of a hydrophilic material, and due to the effect of the hydrophilic material, it has a high affinity with moisture in the stool, and it becomes easier to absorb the stool.
  • the second sheet 35 of the present embodiment by arranging the pulp fibers, not rayon alone, between the rayons, the gap between the rayon fibers is filled with the pulp fibers so as to connect the fibers, thereby increasing the density. It makes it easier to draw in the water.
  • the second sheet 35 has a high ability to pick up moisture in the stool, of the stool on the top sheet 22 in which particles and moisture are mixed, only moisture is allowed to permeate from the top sheet 22 to the second sheet 35. be able to. Particles are removed from the stool that has penetrated into the second sheet 35, and the stool has a high water content. It becomes easy to penetrate and permeate. As a result, the arrival of stools at the stool indicator 40 is improved.
  • FIG. 4 is a diagram showing an example of a design of the urine indicator 40 and the stool indicator 50.
  • the stool indicator 40 is located between the low basis weight portion 21A and the backsheet 23 provided on the non-skin side in the thickness direction of the absorbent body 21 in the thickness direction (see FIG. 2), and It changes visually when touched.
  • the stool indicator 40 and the urine indicator 50 may be configured with a design as shown in FIG. In FIG. 4, the face mark is the urine indicator 50 and the star mark is the stool indicator 40.
  • Each stool indicator 40 and urine indicator 50 have the same or different predetermined color, and are configured to exhibit a different color from the initially predetermined color after urination or after defecation.
  • By visually changing the stool indicator 40 and the urine indicator 50 in response to the wearer's stool it is possible to quickly and easily recognize the presence or absence of defecation / urination from the outer surface of the diaper 1, thereby preventing the stool or urine from leaking. Can be reduced.
  • With regard to stool it is possible to suppress skin troubles caused by stool sticking to the skin for a long time. Further, since it is possible to distinguish between defecation and urination from the outer surface of the diaper, it is possible for the diaper changer to prepare for the excretion and perform the exchanging work when defecation is performed.
  • the length of the stool indicator 40 in the longitudinal direction is preferably longer than the length of the low basis weight portion 21A in the longitudinal direction.
  • the length in the longitudinal direction of the stool indicator 40 does not necessarily have to be set longer than the length in the longitudinal direction of the low basis weight portion 21A, and is longer than both ends of the low basis weight portion 21A in the longitudinal direction and the width direction.
  • the stool indicator 40 may be provided so as to be located inside. By arranging the stool indicator 40 so as to be included in the low basis weight portion 21A in both the longitudinal direction and the width direction, stool moisture easily reaches any part of the stool indicator.
  • the stool indicator 40 is arranged between the low basis weight portion 21A of the absorbent body 21 and the backsheet 23 in the thickness direction. Then, in the area corresponding to the low basis weight portion 21A in the width direction, the top sheet 22 and the second sheet 35, the second sheet 35 and the core wrap sheet 25, and the core wrap sheet 25 and the back sheet 23 are joined in the thickness direction, respectively. Has been done.
  • the top sheet 22, the second sheet 35, the core wrap sheet 25, and the back sheet 23. May be joined in the thickness direction.
  • the skin side portion 25a that covers the skin side surface of the absorbent core 24 and the non-skin side portion 25b that covers the non-skin side surface are in a region corresponding to the slit 21C in the width direction, It is preferable that they are joined in the thickness direction.
  • the joining method of each sheet is a method of applying a hot melt adhesive or the like by a known coating method such as a coater spray method, a spiral spray method, an omega spray method or a curtain spray method, and fixing it by ultrasonic welding (sonic seal). Law, etc.
  • the bonding strength between the second sheet 35 and the core wrap sheet 25 is higher than the bonding strength between the top sheet 22 and the second sheet 35.
  • the density of the adhesive such as hot-melt adhesive in the top sheet 22 in which the particles and water are mixed is the most impenetrable for stool penetration.
  • the density of an adhesive such as a hot melt adhesive for joining the second sheet 35 and the core wrap sheet 25 is increased. However, it does not hinder the penetration.
  • FIG. 5 is a diagram showing a modified example of the diaper 1.
  • a pair of cutouts 60, 60 are formed near the rear portion 7 of both widthwise ends, and similarly, a pair of notch portions are formed near the front portion 3 of both widthwise ends.
  • Notch portions 60, 60 are formed.
  • the cutout portions 60 need not be two pairs, but may be one pair. Both ends of the pair of notches 60 in the width direction of the absorber 21 are formed in a mountain shape toward the inside in the width direction.
  • the shape of the cutout portion 60 is not limited to the shape shown in FIG. Further, in this modification, the absorbent body 21 (absorbent core 24) is cut out at each cutout portion 60, but the basis weight of the liquid absorbent material should be smaller than the other portions of the absorbent body 21. May be formed by.
  • interposed in the width direction by a pair of notch parts 60 and 60 near the rear part 7, and the feces indicator 40 are a longitudinal direction. It has an overlapping portion in the width direction.
  • the pair of notches 60 can prevent the absorbent core 24 from twisting and a gap between the diaper 1 and the wearer, and can prevent excrement from leaking. Further, since the site of the absorbent core 24 sandwiched between the pair of cutouts 60 can securely secure the stool, by disposing the stool indicator 40 at a position corresponding to the sandwiched region, The arrival of flights is also improved.
  • the second sheet 35 is arranged between the top sheet 22 and the core wrap sheet 25 in the thickness direction, but the diffusion sheet that diffuses the liquid between the absorber 21 and the stool indicator 40. You may arrange as. By doing so, the moisture of the stool that has passed through the low basis weight portion 21A can be diffused in the lower layer of the absorber 21, and the stool indicator 40 can react in a wider range. Thereby, the visibility from the outer surface of the diaper 1 can be improved.
  • the top sheet 22 may have an opening. By having the opening, the ground contact area between the second seat 35 and the feces can be increased, and the permeability of the feces to the second seat 35 can be improved.
  • the shape of the low basis weight portion 21A is a rectangular shape that is long in the longitudinal direction in the plan view shown in FIG. 1, but the shape is not limited to this.
  • a square shape, a rectangular shape elongated in the width direction, a heart-shaped pattern shape, or the like may be used.
  • the basis weight is not limited to be constant, and for example, in the width direction from both ends to the central portion. You may form so that a basis weight may be reduced in steps toward.
  • the low basis weight portion 21A in the above-described embodiment has a lower basis weight than the areas 21B and 21B adjacent to the low basis weight portion 21A from the outer side in the width direction.
  • the low basis weight portion 21A may have a lower basis weight than the basis weights at both ends in the width direction of the absorbent body.
  • the number of the low basis weight portions 21A is one at the center portion in the width direction of the diaper 1, but a plurality of the low weighing portions 21A may be provided. In this case, it is possible to further improve the detection of defecation by arranging a plurality of stool indicators 40 so as to have an overlapping portion in each of the low basis weight portions 21A in the longitudinal direction and the width direction.

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

Abstract

La présente invention concerne un article absorbant (1) qui, dans la vue en plan d'un état déplié, a une direction longitudinale, une direction de largeur et une direction d'épaisseur et comporte : un corps absorbant (21) présentant une absorption de fluide ; et un indicateur de selles (40) qui présente une réaction prescrite suite au contact avec des selles. Le corps absorbant (21) a une section à faible poids de base (21A) dans une section centrale dans la direction de la largeur. Le poids de base de la section à faible poids de base (21A) est inférieur au poids de base d'une zone (21B) adjacente à la section à faible poids de base (21A) depuis l'extérieur dans la direction de la largeur. L'indicateur de selles (40) est disposé du côté non en contact avec la peau du corps absorbant (21), dans la direction de l'épaisseur. L'indicateur de selles (40) et la section à faible poids de base (21A) ont des sections qui se chevauchent dans la direction longitudinale et dans la direction de la largeur.
PCT/JP2019/038012 2018-11-22 2019-09-26 Article absorbant WO2020105278A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-219701 2018-11-22
JP2018219701A JP7209421B2 (ja) 2018-11-22 2018-11-22 吸収性物品

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WO2020105278A1 true WO2020105278A1 (fr) 2020-05-28

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JP (1) JP7209421B2 (fr)
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Publication number Priority date Publication date Assignee Title
JP7558789B2 (ja) 2020-12-16 2024-10-01 ユニ・チャーム株式会社 吸収性物品

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09140742A (ja) * 1995-11-29 1997-06-03 Uni Charm Corp 使い捨ておむつ
JP2005021390A (ja) * 2003-07-02 2005-01-27 Kao Corp 吸収性物品
JP2010075464A (ja) * 2008-09-26 2010-04-08 Daio Paper Corp 使い捨ておむつ
JP2012223230A (ja) * 2011-04-15 2012-11-15 Kao Corp 使い捨ておむつ
WO2013187261A1 (fr) * 2012-06-11 2013-12-19 花王株式会社 Article absorbant
WO2015151552A1 (fr) * 2014-03-31 2015-10-08 ユニ・チャーム株式会社 Produit absorbant
US20170165123A1 (en) * 2014-06-20 2017-06-15 Roberto José GOGIN FENANDEZ Absorbent item having indicators for the differential detection of urine and faeces

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09140742A (ja) * 1995-11-29 1997-06-03 Uni Charm Corp 使い捨ておむつ
JP2005021390A (ja) * 2003-07-02 2005-01-27 Kao Corp 吸収性物品
JP2010075464A (ja) * 2008-09-26 2010-04-08 Daio Paper Corp 使い捨ておむつ
JP2012223230A (ja) * 2011-04-15 2012-11-15 Kao Corp 使い捨ておむつ
WO2013187261A1 (fr) * 2012-06-11 2013-12-19 花王株式会社 Article absorbant
WO2015151552A1 (fr) * 2014-03-31 2015-10-08 ユニ・チャーム株式会社 Produit absorbant
US20170165123A1 (en) * 2014-06-20 2017-06-15 Roberto José GOGIN FENANDEZ Absorbent item having indicators for the differential detection of urine and faeces

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JP7209421B2 (ja) 2023-01-20
JP2020081342A (ja) 2020-06-04

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