WO2012114880A1 - 使い捨ておむつ - Google Patents

使い捨ておむつ Download PDF

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Publication number
WO2012114880A1
WO2012114880A1 PCT/JP2012/052890 JP2012052890W WO2012114880A1 WO 2012114880 A1 WO2012114880 A1 WO 2012114880A1 JP 2012052890 W JP2012052890 W JP 2012052890W WO 2012114880 A1 WO2012114880 A1 WO 2012114880A1
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WO
WIPO (PCT)
Prior art keywords
sheet
microcapsule
alkaline substance
urine
disposable diaper
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2012/052890
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English (en)
French (fr)
Japanese (ja)
Inventor
美貴子 川井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daio Paper Corp
Original Assignee
Daio Paper Corp
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 Daio Paper Corp filed Critical Daio Paper Corp
Publication of WO2012114880A1 publication Critical patent/WO2012114880A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/84—Accessories, not otherwise provided for, for absorbent pads
    • A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
    • 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
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria

Definitions

  • the present invention relates to a disposable diaper having a function of notifying the presence or absence of excretion of urine or the like by aroma.
  • a main problem of the present invention is to provide a disposable diaper in which perfume is not released due to moisture in storage before use or sweat of a wearer during wearing, and the perfume is released when excreted. .
  • a disposable diaper comprising a liquid-permeable surface sheet, a liquid-impermeable sheet, and an absorbent body interposed therebetween, An alkaline substance that dissolves in urine to make the urine alkaline, and a microcapsule that is soluble in urine in which the core material is a fragrance and the membrane material is made alkaline by the alkaline substance from the liquid-impermeable sheet.
  • a disposable diaper characterized by that.
  • the absorbent body is wrapped by a packaging sheet made of nonwoven fabric or crepe paper, 4.
  • the alkaline substance is contained in the crotch part and the front part and the rear part thereof, respectively, and the basis weight of the alkaline substance in the front part and the rear part is greater than the basis weight of the alkaline substance in the crotch part.
  • the disposable diaper of any one of 4.
  • the alkaline substance is a substance that dissolves in the urine to bring the urine into a pH of 11 to 12, and the membrane material of the microcapsule is soluble in the temperature range of 20 to 80 ° C. and in the alkaline region of pH 11 to 14.
  • the disposable diaper according to any one of claims 1 to 5, wherein the disposable diaper is.
  • the alkaline substance and the microcapsule film material of the present invention are preferably such.
  • the fragrance is not released due to moisture in storage before use or sweat of the wearer during wearing, and the fragrance is released when excreted. Brought about.
  • FIG. 3 is a cross-sectional view taken along the line 3-3 in FIG. 1.
  • FIG. 4 is a sectional view taken along line 4-4 of FIG.
  • FIG. 5 is a sectional view taken along the line 5-5 in FIG.
  • It is a top view in the state where the diaper was developed showing only the principal part of a pants type disposable diaper.
  • the pants-type disposable diaper 100 includes an exterior sheet 12 that forms the outer surface (rear surface) of the product and an interior body 200 that is attached to the inner surface of the exterior sheet 12.
  • the interior body 200 is a part that absorbs and holds excrement such as urine
  • the exterior sheet 12 is a part that is worn by the wearer.
  • the dot pattern part in sectional drawing has shown the junction part which joins each structural member, and is formed by solid, beads, curtains, summits, spiral application, etc., such as a hot-melt-adhesive.
  • front-rear direction means the direction connecting the ventral side (front side) and the back side (rear side)
  • width direction means the direction (left-right direction) orthogonal to the front-rear direction
  • up-down direction In the state of wearing the diaper 100, that is, the direction perpendicular to the waistline direction when the diaper 100 is folded in two at the crotch portion so that both sides of the front body and the back body side of the diaper 100 are overlapped, in other words, For example, it means a direction connecting the waist opening WO side and the crotch side.
  • the interior body 200 can take any shape, but is rectangular in the illustrated form. As shown in FIGS. 3 to 5, the interior body 200 includes a surface sheet 30 on the body side, a liquid-impermeable sheet 11, and an absorbent element 50 interposed therebetween. Yes, it is the main body that takes up the absorption function.
  • Reference numeral 40 denotes an intermediate sheet (second sheet) provided between the top sheet 30 and the absorbent element 50 in order to quickly transfer the liquid that has passed through the top sheet 30 to the absorbent element 50.
  • the top sheet 30 has a property of transmitting liquid, and examples thereof include a porous or non-porous nonwoven fabric, a porous plastic sheet, and the like.
  • the nonwoven fabric is not particularly limited as to what the raw fiber is.
  • synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, natural fibers such as cotton, and mixed fibers and composite fibers using two or more of them. Etc. can be illustrated.
  • the nonwoven fabric may be manufactured by any processing.
  • processing method examples include known methods such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, and a point bond method.
  • spunlace method a spunlace method
  • thermal bond method a melt blown method
  • melt blown method a melt blown method
  • needle punch method an air through method
  • point bond method a point bond method.
  • the spunbond method and spunlace method are preferable.
  • the air-through method, point bond method, and thermal bond method are preferable processing methods. .
  • the top sheet 30 may be composed of a single sheet or a laminated sheet obtained by bonding two or more sheets. Similarly, the top sheet 30 may be composed of one sheet or two or more sheets in the planar direction.
  • both side portions of the top sheet 30 pass between the liquid-impermeable sheet 11 and the barrier cuff 60 to the back side of the absorbent element 50 to prevent liquid penetration. It is preferable to adhere to the impermeable sheet 11 and the barrier cuff 60 with a hot melt adhesive or the like.
  • An intermediate sheet (also referred to as “second sheet”) 40 having a higher liquid permeation rate than the top sheet 30 can be provided to quickly transfer the liquid that has passed through the top sheet 30 to the absorber.
  • This intermediate sheet 40 not only improves the absorption performance of the absorbent by quickly transferring the liquid to the absorbent body, but also prevents the “reversed” phenomenon of the absorbed liquid from the absorbent body, so that the top sheet 30 is always dried. It can be made into the state which carried out.
  • the intermediate sheet 40 can be omitted.
  • the intermediate sheet 40 examples include the same material as the top sheet 30, spunlace, spunbond, SMS, pulp nonwoven fabric, mixed sheet of pulp and rayon, point bond, or crepe paper.
  • an air-through nonwoven fabric is preferable because it is bulky. It is preferable to use a core-sheath composite fiber for the air-through nonwoven fabric.
  • the resin used for the core may be polypropylene (PP), but polyester (PET) having high rigidity is preferable.
  • Basis weight is preferably 20 ⁇ 80g / m 2, more preferably 25 ⁇ 60g / m 2.
  • the thickness of the raw fiber of the nonwoven fabric is preferably 2.2 to 10 dtex.
  • the intermediate sheet 40 in the illustrated form is arranged in the center shorter than the width of the absorbent body 56, but may be provided over the entire width.
  • the length of the intermediate sheet 40 in the longitudinal direction may be the same as the length of the absorbent body 56 or may be within a short length range centered on the region that receives the liquid.
  • the material of the liquid-impermeable sheet 11 is not particularly limited.
  • a plastic film made of an olefin resin such as polyethylene or polypropylene, a laminated nonwoven fabric provided with a plastic film on the surface of the nonwoven fabric, or a plastic film For example, a laminated sheet in which a nonwoven fabric or the like is laminated and bonded to each other can be exemplified.
  • the liquid-impermeable sheet 11 it is preferable to use a liquid-impermeable and moisture-permeable material that has been preferred in recent years from the viewpoint of preventing stuffiness.
  • a microporous plastic film obtained by kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, forming a sheet, and then stretching in a uniaxial or biaxial direction.
  • an olefin resin such as polyethylene or polypropylene
  • non-woven fabric using micro-denier fibers leakproof reinforcement by reducing the voids of the fibers by applying heat or pressure, and methods such as applying a superabsorbent resin or hydrophobic resin or water repellent
  • a sheet that is liquid-impermeable without using a plastic film can also be used as the liquid-impermeable sheet 11.
  • the liquid-impermeable sheet 11 is preferably extended to both sides of the side surface 30 of the absorbent element 50 by wrapping around both sides of the absorbent element 50 in order to improve leakage prevention.
  • the width of this extended portion is suitably about 5 to 20 mm on the left and right.
  • the barrier cuff 60 is a belt-like member that extends over the entire front and rear direction along both side portions of the interior body 200, blocks urine and soft stool that move laterally along the top sheet 30, and prevents side leakage. It is provided for this purpose.
  • the barrier cuff 60 of the present embodiment is provided so as to stand up from the side portion of the interior body 200, the base side portion stands up obliquely toward the center in the width direction, and the tip side portion from the intermediate portion has a width. It stands up diagonally outward in the direction.
  • the barrier cuff 60 is formed by folding a belt-like barrier sheet 62 having a length equal to the length in the front-rear direction of the interior body 200 and folding it in the width direction.
  • a plurality of elongated elastic elastic members 63 are fixed along the longitudinal direction at intervals in the width direction.
  • An end of the barrier cuff 60 opposite to the folded portion in the width direction is an attachment portion 65 fixed to the back surface of the side edge of the interior body 200, and portions other than the attachment portion 65 protrude from the attachment portion 65. It is set as the protrusion part 66 (part by the side of a folding
  • both end portions in the front-rear direction of the protruding portion 66 extend from the mounting portion 65 to the side surface of the topsheet 30 through the side portion of the interior body 200 and are hot-melted to the side surface of the topsheet 30.
  • the base side portion is fixed to the front and rear fixing portion 67 by an adhesive or heat seal, and the tip side portion is folded back outward in the width direction from the tip of the base side portion and fixed to the base side portion.
  • An intermediate part in the front-rear direction of the protruding part is an unfixed free part (inner free part), and an elongated elastic member 63 extending in the front-rear direction is fixed to the free part in an extended state.
  • the barrier sheet 62 is made of a spunbond nonwoven fabric (SS, SSS, etc.), an SMS nonwoven fabric (SMS, SSMMS, etc.), a melt-blown nonwoven fabric with excellent uniformity and concealment, and water-repellent with silicon as necessary.
  • a treated product can be suitably used, and the fiber basis weight is preferably about 10 to 30 g / m 2 .
  • the elongated elastic elastic member 63 rubber thread or the like can be used. When spandex yarn rubber is used, the thickness is preferably 470 to 1240 dtex, more preferably 620 to 940 dtex.
  • the elongation at the time of fixation is preferably 150 to 350%, more preferably 200 to 300%.
  • the term “elongation rate” means a value when the natural length is 100%.
  • a waterproof film can be interposed between the barrier sheets folded in two.
  • the number of the elongated elastic elastic members 63 provided in the free part of the barrier cuff 60 is preferably 2 to 6, more preferably 3 to 5.
  • the arrangement interval 60d is suitably 3 to 10 mm. If comprised in this way, in the range which has arrange
  • the elongated elastic elastic member 63 may be disposed not only at the distal end side but also at the base side.
  • the fixing target of the attachment portion 65 of the barrier cuff 60 can be an appropriate member such as the top sheet 30, the liquid-impermeable sheet 11, and the absorbent element 50 in the interior body 200.
  • the contraction force of the elongated elastic elastic member 63 acts to bring the both ends in the front-rear direction close to each other, but the both ends of the projecting portion 66 are fixed so that they do not stand up.
  • the free portions stand up against the body side as shown in FIG.
  • the barrier cuff 60 stands up so that the barrier cuff 60 opens outward in the width direction at and around the crotch portion. It comes in contact, and the fit is improved.
  • the dimensions of the barrier cuff 60 can be appropriately determined.
  • the standing height of the barrier cuff 60 (the length in the width direction of the protruding portion 66 in the unfolded state) W6 is It is preferably 15 to 60 mm, particularly 20 to 40 mm.
  • the separation distance W3 between the innermost folds is preferably 60 to 190 mm, particularly preferably 70 to 140 mm.
  • double (two rows) of barrier cuffs can be provided on the left and right sides of the interior body 200.
  • the absorbent element 50 includes an absorbent body 56 and a packaging sheet 58 that wraps the entire absorbent body 56.
  • the packaging sheet 58 can be omitted.
  • the absorber 56 can be formed of an aggregate of fibers.
  • This fiber assembly a filament assembly obtained by opening, as necessary, synthetic fiber tows (fiber bundles) such as cellulose acetate as well as short fibers such as cotton-like pulp and synthetic fibers Can also be used.
  • the fiber basis weight can be, for example, about 100 to 300 g / m 2 when stacking cotton-like pulp or short fibers, and about 30 to 120 g / m 2 for filament aggregates, for example. Can do.
  • the fineness in the case of synthetic fibers is, for example, 1 to 16 dtex, preferably 1 to 10 dtex, and more preferably 1 to 5 dtex.
  • the filament may be a non-crimped fiber, but is preferably a crimped fiber.
  • the crimped degree of the crimped fiber can be, for example, about 5 to 75, preferably 10 to 50, and more preferably about 15 to 50 per inch. Further, a crimped fiber that is uniformly crimped is often used. It is preferable to disperse and hold superabsorbent polymer particles in the absorber 56.
  • the absorbent body 56 may be rectangular, as shown in FIG. 6, as shown in FIG. 6, the hourglass has a front end portion, a rear end portion, and a narrow portion narrower than the front end portion and the rear end portion.
  • the shape is preferable because the fit of the absorbent body 56 and the barrier cuff 60 around the legs is improved.
  • the size of the absorber can be determined as appropriate, but it preferably extends to the peripheral edge of the interior body or the vicinity thereof in the front-rear direction and the width direction.
  • the absorber 56 can contain superabsorbent polymer particles in a part or all thereof.
  • Superabsorbent polymer particles include “powder” in addition to “particles”.
  • particle diameter of the superabsorbent polymer particles those used in this type of absorbent article can be used as they are, and those having a particle size of 1000 ⁇ m or less, particularly 150 to 400 ⁇ m are desirable.
  • the material of the superabsorbent polymer particles can be used without any particular limitation, but those having a water absorption of 40 g / g or more are suitable.
  • Superabsorbent polymer particles include starch, cellulose and synthetic polymers, such as starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer, and sodium carboxymethylcellulose cross-link. Or an acrylic acid (salt) polymer can be used.
  • starch-acrylic acid (salt) graft copolymer such as starch-acrylic acid (salt) graft copolymer, saponified starch-acrylonitrile copolymer, and sodium carboxymethylcellulose cross-link.
  • an acrylic acid (salt) polymer can be used.
  • shape of the superabsorbent polymer particles a commonly used granular material is suitable, but other shapes can also be used.
  • the superabsorbent polymer particles those having a water absorption rate of 40 seconds or less are preferably used. When the water absorption speed exceeds 40 seconds, so-called reversion in which the liquid supplied into the absorber 56 returns to the outside of the absorber 56 is likely to occur.
  • the superabsorbent polymer particles those having a gel strength of 1000 Pa or more are preferably used. Thereby, even if it is a case where it is set as the bulky absorber 56, the sticky feeling after liquid absorption can be suppressed effectively.
  • the basis weight of the superabsorbent polymer particles can be appropriately determined according to the amount of absorption required for the use of the absorber 56. Therefore, although it cannot be generally stated, it can be 50 to 350 g / m 2 . If the amount of polymer is less than 50 g / m 2, it is difficult to secure the absorption amount. When it exceeds 350 g / m 2 , the effect is saturated.
  • the superabsorbent polymer particles can adjust the spray density or spray amount in the plane direction of the absorber 56. For example, it is possible to increase the application amount of the liquid excretion site as compared to other sites. When gender differences are taken into account, men can increase the front spray density (amount), while women can increase the center spray density (amount). In addition, a portion where no polymer exists locally (for example, in a spot shape) in the planar direction of the absorber 56 can also be provided.
  • tissue paper particularly crepe paper, non-woven fabric, polylaminated non-woven fabric, a sheet with small holes, or the like can be used.
  • the superabsorbent polymer particles be a sheet that does not escape.
  • a nonwoven fabric is used in place of the crepe paper, a hydrophilic SMS nonwoven fabric (SMS, SSMMS, etc.) is particularly suitable, and the material can be polypropylene, polyethylene / polypropylene composite material, or the like.
  • the basis weight is preferably 5 to 40 g / m 2 , particularly 10 to 30 g / m 2 .
  • the packaging form of the packaging sheet 58 can be determined as appropriate, but from the viewpoint of ease of manufacture and prevention of leakage of the superabsorbent polymer particles from the front and rear end edges, the cylinder is formed so as to surround the front and back surfaces and both side surfaces of the absorbent body 56. It is preferable that the front and rear edges of the absorbent body 56 are protruded from the front and back of the absorbent body 56, and the protruding portions are crushed in the front and back directions and joined by a joining means such as a hot melt adhesive.
  • the exterior sheet 12 has a part constituting the front body F extending from the crotch part to the ventral side and a part constituting the rear body B extending from the crotch part to the back side, and both sides of the front body F As shown in FIG. 8, a waist opening WO for passing the wearer's torso and a pair of left and right leg openings LO for passing the legs are formed. It is what. Reference numeral 12A denotes a joining portion (hereinafter, this portion is also referred to as a side seal portion).
  • the crotch portion means the center in the front-rear direction from the waist edge of the front body F to the waist edge of the back body B in the unfolded state, and the front part and the back part thereof are the front body F and Each back body B is meant.
  • the exterior sheet 12 includes a waistline portion T defined as a front-rear direction range extending from the waist opening WO to the upper end of the leg opening LO, and a front-rear direction range of the portion forming the leg opening LO (the side seal portion 12A of the front body F). And an intermediate portion L defined as a front-rear direction region having a side seal portion 12A of the back body B.
  • the waistline T can be divided into a “waist edge” W that conceptually forms the edge of the waist opening, and a “waist lower part” U that is a lower part than this.
  • the length in the vertical direction varies depending on the size of the product and can be determined as appropriate.
  • the waist edge W may be 15 to 40 mm, and the waist lower portion U may be 65 to 120 mm.
  • both side edges of the intermediate portion L are bundled along the circumference of the wearer's leg, and this is a portion into which the wearer's leg is put.
  • the exterior sheet 12 has a substantially hourglass shape as a whole.
  • the degree of tightness of the exterior sheet 12 can be determined as appropriate.
  • the narrowest portion may be narrower than the width of the interior body 200 in order to obtain a clean appearance. Although it is preferable, the narrowest part may be determined so as to be equal to or larger than the width of the interior body 200.
  • the exterior sheet 12 is formed by bonding two sheet base materials 12S and 12H with an adhesive such as a hot melt adhesive, and is an inner sheet positioned on the inner side.
  • the base material 12H extends only to the edge of the waist opening WO
  • the outer sheet base material 12S wraps around the waist side edge of the inner sheet base material 12H and is folded back to the inside. 12r is extended so that it may coat
  • the sheet base materials 12S and 12H can be used without particular limitation as long as they are in sheet form, but are preferably non-woven fabrics.
  • the nonwoven fabric is not particularly limited as to what the raw fiber is.
  • synthetic fibers such as olefins such as polyethylene and polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, natural fibers such as cotton, and mixed fibers and composite fibers using two or more of them. Etc. can be illustrated.
  • the nonwoven fabric may be manufactured by any processing. Examples of the processing method include known methods such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, an air through method, and a point bond method.
  • the basis weight is preferably about 10 to 30 g / m 2 .
  • the total basis weight of the exterior sheet 12 is preferably about 20 to 60 g / m 2 so that the design of the printing sheet 25 described later can be satisfactorily visually recognized through the exterior sheet 12.
  • the total light transmittance specified in 7105 is preferably 40% or more, particularly 50% or more.
  • the outer sheet 12 is provided with elongated elastic elastic members 15 to 19 such as rubber thread at a predetermined elongation rate between the sheet bases 12S and 12H in order to improve the fit to the waistline.
  • elongated elastic elastic members 15 to 19 synthetic rubber or natural rubber may be used.
  • hot melt bonding or heat sealing or ultrasonic bonding by various coating methods is used. Can do. If the entire exterior sheet 12 is firmly fixed, the texture of the sheet is impaired, which is not preferable. By combining these, it is preferable that the elongated elastic elastic members 15 to 19 are firmly bonded, and the other portions are not bonded or are bonded weakly.
  • the entire width direction is continuous between the inner surface of the inner sheet base 12H and the outer surface of the folded portion 12r of the outer sheet base 12S at the waist edge W of the rear body B and the front body F.
  • the plurality of waist edge elastic elastic members 17 are fixed in a state of being spaced apart in the vertical direction and extended along the width direction at a predetermined extension rate.
  • one or more of the waist edge elastic elastic members 17 disposed in a region adjacent to the waist lower portion U may overlap with the interior body 200 or may be overlapped with the interior body 200 in the width direction. You may each provide in the width direction both sides except a center part.
  • the waist edge elastic elastic member 17 has a thickness of 155 to 1880 dtex, particularly about 470 to 1240 dtex (in the case of synthetic rubber. In the case of natural rubber, the cross-sectional area is 0.05 to 1.5 mm 2 , particularly 0.1 to It is preferable to fix the thread rubber of about 1.0 mm 2 ) at an interval of 4 to 12 mm at about 3 to 22 pieces and an elongation of 150 to 400%, particularly about 220 to 320%. Further, the waist edge elastic elastic members 17 need not all have the same thickness and elongation rate. For example, the elastic elastic members may have different thicknesses and elongation rates at the upper and lower portions of the waist edge W. .
  • a plurality of waist lower elastic elastic members 15, 19 made of an elongated elastic elastic member are continuously provided over the entire width direction on each of the upper side and both sides in the width direction, with a predetermined interval in the vertical direction It is fixed in an expanded state along the width direction at an expansion rate.
  • the waist lower elastic members 15 and 19 have a thickness of 155 to 1880 dtex, especially about 470 to 1240 dtex (in the case of synthetic rubber.
  • the cross-sectional area is 0.05 to 1.5 mm 2 , especially 0.1 to It is preferable to fix the thread rubber of about 1.0 mm 2 at an interval of 1 to 15 mm, especially 3 to 8 mm, and about 5 to 30 and an elongation rate of 200 to 350%, particularly 240 to 300%.
  • a plurality of intermediate elastic expansion / contraction members 16 made of an elongated elastic expansion / contraction member are provided in each part on both sides in the width direction so as to be continuous over the entire width direction. It is fixed in a stretched state along the direction.
  • the intermediate elastic elastic members 16 and 18 have a thickness of 155 to 1880 dtex, especially about 470 to 1240 dtex (in the case of synthetic rubber.
  • the cross-sectional area is 0.05 to 1.5 mm 2 , especially 0.1 to It is preferable to fix the thread rubber of about 1.0 mm 2 at 5 to 40 mm, particularly about 2 to 10 at intervals of 5 to 20 mm, with an elongation of 150 to 300%, particularly 180 to 260%.
  • the waist lower elastic elastic member and the intermediate elastic elastic members 15, 19, 16, 18 are respectively provided on both sides in the width direction except for the central portion in the width direction overlapping the interior body 200.
  • the interior body 200 does not shrink more than necessary in the width direction, so that it does not look bad or absorbs.
  • the elastic stretchable member exists from one side of the width direction to the other side across the interior body 200, but overlaps the interior body 200.
  • the elastic expansion / contraction member is finely cut, and the contraction force does not act (substantially equivalent to not providing the elastic expansion / contraction member), and only the both sides in the width direction are configured as the contraction force acting portions.
  • the arrangement of the waist lower elastic members 15, 19, 16, and 18 is not limited to the above example, and the waist lower portion so that the elastic force acts on the entire width of the waist lower U.
  • a part or all of the elastic elastic member and the intermediate elastic elastic members 15, 19, 16, 18 can be provided across the interior body 200 from one side in the width direction to the other side.
  • the elongated elastic elastic members 15 to 19 of each part cross a printing sheet 25 described later
  • rubber containing titanium oxide is used as the elongated elastic elastic members 15 to 19
  • the content of titanium oxide is It is preferable to use a low one (for example, 2% or less) or one containing no titanium oxide.
  • a post-processing tape 70 (fixing means) can be provided at the center in the width direction on the outer surface of the rear body B of the exterior sheet 12.
  • the post-processing tape 70 is for fixing the diaper 100 in a state where the diaper 100 is rolled or folded so that the topsheet 30 is on the inside and the front body F is on the inside.
  • a base end portion 71 is fixed to the outer surface of the exterior sheet 12 with an adhesive or the like, and a portion on the front end side of the base end portion 71 is tri-folded.
  • pick part 73 is transparent or semi-transparent.
  • the transparent or semi-transparent part in this post-processing tape 70 A design to be described later is visible from the outer surface side of the post-processing tape 70.
  • the whole is formed by connecting a plurality of transparent or semi-transparent substrates in the longitudinal direction, and a colored tape 74 is bonded to the knob 73. Is adopted.
  • the diaper 100 is rolled or folded so that the topsheet 30 is on the inside and the front body F is on the inside, and then the folded portion of the post-processing tape 70 is peeled off and spread, and the diaper 100 is rolled or folded.
  • the diaper 100 is fixed with an adhesive so as to be wound from the rear body B of the diaper 100 to the outer surface on the opposite side over the waist opening WO.
  • the post-processing tape 70 is particularly preferably a tri-fold shape that can be folded compactly when not in use and can be expanded into a long shape when in use.
  • the fixing means such as the post-processing tape 70 may be provided on the front body F, or may be provided on both the back body B and the front body F.
  • a printing sheet 25 that is designed by printing is provided between the liquid-impermeable sheet 11 and the exterior sheet 12 (including the interlayer of the exterior sheet 12).
  • the exterior sheet 12 may be omitted, and the print sheet 25 may be exposed on the outer surface.
  • the printed sheet 25 in the illustrated example has a smaller area than the body on which the printed sheet 25 is disposed, and is provided separately for the front body F and the back body B, but passes through the crotch from the front body F. It can also be provided so as to continue to the back body B integrally.
  • the size and shape of the printing sheet 25 are not particularly limited, but it is preferable to sufficiently increase the area in order to achieve a sufficient function.
  • the width of the printing sheet 25 is 50 to 120 of the width of the absorber 56.
  • the length of the printing sheet 25 is preferably about 15 to 30% of the total length Y of the article on at least one side of the stomach and the back.
  • the shape of the print sheet 25 is preferably a rectangle as shown in the figure in that trim loss does not occur.
  • the print sheet 25 has a geometric shape such as a circle, an ellipse, a triangle, a hexagon, or a shape along the periphery of the design. You may cut it.
  • a plastic film, non-woven fabric, paper, or the like can be used, but a bulky material having high air permeability is preferable.
  • a plastic film it is desirable to have moisture permeability in order to prevent stuffiness.
  • Nonwoven fabrics and paper are preferable because they have moisture permeability, and when performing design printing, it is preferable to use nonwoven fabrics that are smooth and easy to print, and papers that are high in strength and difficult to bleed ink.
  • crepe paper having a basis weight of about 15 to 35 g / m 2 and a thickness of about 0.1 to 0.3 mm, and a basis weight of about 10 to 25 g / m 2 and a thickness of about 0.1 to 0.3 mm.
  • Non-woven fabrics especially spunbond nonwoven fabrics and SMS nonwoven fabrics having a spunbond portion having a fineness of about 1.0 to 3.0 dtex.
  • the crepe rate is preferably about 5 to 20%, particularly about 5 to 15%. If the crepe rate is 20% or more, the amount of ink fixed increases, but blurring occurs and is not suitable for design printing. If the crepe rate is 5% or less, the amount of fixing is small because the ink hardly penetrates.
  • the front body F to the back body B are continuously covered with the integral exterior sheet 12, but the exterior sheet covers the stomach side of the wearer's waist and the back side
  • the front end portion of the interior body is connected to the inner surface of the center portion in the width direction of the abdominal side exterior sheet with a hot melt adhesive or the like, and the center portion in the width direction of the back side exterior sheet.
  • the rear end of the interior body is connected to the inner surface by a hot melt adhesive or the like, and the form in which the abdominal exterior sheet and the back exterior sheet are not continuous on the crotch side and are separated from each other may be adopted. it can. This separation distance can be about 150 to 250 mm.
  • the back surface of the liquid-impermeable sheet in the interior body is crotch so as to cover the entire back surface of the interior body, or to cover the entire portion exposed between the abdominal exterior sheet and the back exterior sheet.
  • a partial exterior sheet can also be fixed.
  • the crotch outer sheet the same material as that used for the outer sheet described above can be used.
  • an alkaline substance 80 that dissolves in urine to make the urine alkaline a core material is a fragrance, and a membrane material Contains microcapsules 90 that are soluble in urine that have been made alkaline by the alkaline substance 80.
  • the urine excreted from the wearer becomes alkaline due to dissolution of the built-in alkaline substance 80 on the surface sheet 30 side from the liquid-impermeable sheet 11, and comes into contact with the microcapsule 90 to dissolve the membrane material.
  • releases, a fragrance diffuses out of a diaper, and the person other than a wearer can know the presence or absence of excretion by sniffing the fragrance. Therefore, since the membrane material is not dissolved by supplying moisture directly to the microcapsule 90, a situation occurs in which the fragrance is released due to moisture in storage before use or sweat of the wearer during wearing. It becomes difficult to do.
  • the locations of the alkaline substance 80 and the microcapsule 90 are not particularly limited as long as the alkaline substance 80 is dissolved in urine and the urine dissolves the membrane material of the microcapsule 90, but the alkaline substance 80 and the microcapsule 90 are not limited. If the urine in which the material and the fragrance are dissolved or mixed leaks out from the surface sheet 30 and adheres to the skin of the wearer, the skin may be rough. Therefore, as shown in FIG. 9 and FIG.
  • the alkaline substance 80 and the microcapsule 90 are provided only in the thickness direction range from the bottom of the absorber 56 to the surface of the liquid-impermeable sheet 11, It is desirable that the urine in which 80 or the like is dissolved is less likely to return to the surface sheet 30 side than the absorber 56 by the absorber 56.
  • the alkaline substance 80 and the microcapsule 90 may be located at the same position in the thickness direction, or any of them may be located on the liquid-impermeable sheet 11 side, but the contact efficiency between urine and the alkaline substance 80 and the alkali
  • the alkaline substance 80 is added to the microcapsule as shown in various forms in FIGS. It is preferably contained on the surface sheet 30 side than 90.
  • the absorbent body 56 is wrapped by a packaging sheet 58 made of non-woven fabric or crepe paper, as shown in various forms in FIGS.
  • the portion located on the lower side of the absorbent body 56 in the packaging sheet 58 the portion located on the lower side of the absorbent body 56 in the packaging sheet 58.
  • the microcapsule 90 is contained in the surface of the liquid-impermeable sheet 11 on the side of the packaging sheet 58, the alkaline substance 80 and the microcapsule are added to the packaging sheet 58 and the liquid-impermeable sheet 11. Since it can manufacture only by apply
  • the alkaline substance 80 and the microcapsule 90 are contained on the surface of the sheet in addition to the form in which the alkaline substance 80 and the microcapsule 90 are held inside the sheet. It includes the form which is made. In the various forms shown in FIG. 9, the alkaline substance 80 is held inside the packaging sheet 58, and the microcapsules 90 are held on the surface of the liquid-impermeable sheet 11 on the packaging sheet 58 side. The form is such that the alkaline substance 80 is held on the surface of the packaging sheet 58 and the microcapsule 90 is held on the surface of the liquid-impermeable sheet 11 on the packaging sheet 58 side.
  • a liquid-permeable porous material such as crepe paper or nonwoven fabric
  • a coating solution or microcapsule 90 obtained by dissolving the alkaline substance 80 in a solvent such as water in a dispersion medium such as water.
  • the alkali substance 80 or the microcapsule 90 can be introduced into the fiber gap of the sheet, and the portion of the sheet can be made into a layer containing the alkali substance 80.
  • a water-soluble paint mixed with the alkaline substance 80 and the microcapsule 90 is applied to form a water-soluble coating film on the surface of the sheet,
  • a water-soluble adhesive By adhering the alkaline substance 80 or the microcapsule 90 to the surface using a water-soluble adhesive, the alkaline substance 80 or the microcapsule 90 can be attached to the surface of the sheet, not inside the sheet. .
  • FIG. 9 and the form of FIG. 10A are preferable because the contact efficiency of urine, the alkaline substance 80, and the microcapsule 90 is good.
  • FIG. A form in which the alkaline substance 80 is held on the inner surface (the surface on the absorber 56 side), or the inner and outer surfaces (the surface on the absorber 56 side and the liquid-impermeable sheet 11) of the packaging sheet 58 is also preferable.
  • the alkaline substance 80 and the microcapsule 90 may have the same position or may be shifted in a plan view. However, as in various forms shown in FIGS. If the containing portion of the microcapsule 90 is provided only inside the peripheral portion of the containing portion of the alkaline substance 80, the contact efficiency between the urine and the alkaline substance 80 is increased, and the urine and microbe in which the alkaline substance 80 is dissolved. The contact efficiency with the capsule 90 is also increased, which is preferable.
  • At least one (particularly the alkaline substance 80) of the alkaline substance 80 and the portion containing the microcapsule 90 does not hinder breathability, urine permeability and diffusibility.
  • vertical stripe patterns patterns in which stripes or strips along the front-rear direction are provided in multiple rows at intervals in the width direction
  • horizontal stripe patterns stripes or strips along the width direction
  • a dot-like pattern dot-like or spotted-containing portions are spaced in the width direction and the front-rear direction, staggered
  • the part containing the alkaline substance 80 and the microcapsule 90 may be only a part in the front-rear direction, such as only the crotch part. It is preferable to do this. Further, in general, disposable diapers have a large amount of urine supplied to the crotch, and the amount of urine supplied to both the front and rear sides of the crotch is small. Therefore, the amount of the alkaline substance 80 dissolved in the urine is reduced in the front part and the rear part of the crotch part, and there is a possibility that the dissolution of the membrane material of the microcapsule 90 and the generation of the fragrance may be insufficient. Therefore, as shown in FIG.
  • the alkaline substance 80 is not particularly limited as long as it dissolves in urine and raises the pH of the urine to the condition for dissolving the membrane material of the microcapsule 90. However, it is preferable to adjust the pH to about 11-12. Examples of substances include sodium carbonate and calcium hydroxide.
  • the content of the alkaline substance 80 can be determined as appropriate, but in the normal case, it can be about 0.5 to 3.0 g per diaper, and the basis weight can be about 20 to 125 g / m 2. it can.
  • the fragrance that is the core material of the microcapsule 90 is not particularly limited, but fragrances such as rose, lavender, mint, and lemon are preferable.
  • the fragrance is preferably a natural extract, but may be a synthetic product.
  • the perfume component has a masking effect that makes it impossible to recognize the urine and stool odor even if it has a deodorizing effect that eliminates the urine and stool odor. Also good.
  • a colorant can be added to the core material of the microcapsule 90. In this case, not only the odor is generated, but also functions as an indicator by a color change seen from the outer surface.
  • the membrane material of the microcapsule 90 is not particularly limited as long as it is an alkali-soluble material that dissolves in the urine in which the alkaline substance 80 is dissolved.
  • the membrane material is soluble in the temperature range of 20 to 80 ° C. and in the alkaline region of pH 11 to 14.
  • the film material of such a microcapsule 90 include a film material “a hydrophilic colloid having a carboxyl group cured by a compound having an oxazoline group” described in JP-A-2007-00756. This alkali-soluble microcapsule 90 is soluble in a predetermined temperature of 20 to 80 ° C.
  • the alkali-soluble film material can be obtained by curing a hydrophilic colloid having a carboxyl group with a compound having an oxazoline group.
  • the hydrophilic colloid indicates a molecular colloid or the like that exists in a solvent and can be coordinated around a core substance to form an emulsion.
  • hydrophilic colloids having a carboxyl group include water-soluble proteins such as gelatin and albumin, natural polymer substances such as starch, agar, and gum arabic, carboxymethylcellulose, and carboxymethyl.
  • Synthetic cellulose ethers such as hydroxyethyl cellulose, synthetic polymer compounds such as polyvinyl methyl ether / maleic anhydride copolymer, carboxyl group-modified polyvinyl alcohol, and the like are used.
  • a water-soluble protein having gelling property is preferable for use as a basic film substance.
  • gelatins such as alkali-treated gelatin and acid-treated gelatin are preferable, and among them, alkali-treated gelatin is most suitable. Gelatin has no toxicity and is suitable for edible and oral use.
  • Gelatin is roughly classified into acid-treated gelatin and alkali-treated gelatin depending on the treatment method when extracting from collagen.
  • Alkali-treated gelatin undergoes deamidation of amino acid side chains in the calcination treatment step, and has a higher amount of modification to carboxyl groups than acid-treated gelatin. Since the oxazoline group has high activity with respect to the reaction with the carboxyl group, alkali-treated gelatin having many carboxyl groups is suitable as a cross-linking material by the oxazoline compound.
  • a core material (oil-based substance) is dispersed in an aqueous solution containing a carboxyl group-containing hydrophilic colloid, that is, a basic film material, thereby forming an O / W emulsion in which oil droplets are dispersed in the aqueous solution.
  • the core material used is at least a fragrance, and a colorant or the like can be added to the core material.
  • hydrophilic colloid basic film substance having a carboxyl group
  • a gelable hydrophilic colloid having an isoionic point as a polycation is used, and a water-soluble protein is generally used.
  • gelatin agar, casein, soybean protein, collagen, albumin and the like can be mentioned. Of these, gelatin such as acid-treated gelatin and alkali-treated gelatin is preferred, and alkali-treated gelatin is most preferred.
  • the concentrations of the core substance and the film substance are arbitrarily selected depending on the properties and shapes required for the target microcapsules.
  • the size of the core material droplet obtained by the dispersion is related to the size of the microcapsule finally obtained.
  • the size of the microcapsules is selected according to the purpose, and the size of the droplets of the emulsion is substantially reflected as the particle size of the microcapsules.
  • the final size of the microcapsules can be obtained as oil droplets having a diameter in terms of a sphere of generally 0.1 to 3000 ⁇ m, preferably 0.1 to 2000 ⁇ m, more preferably 0.1 to 1000 ⁇ m. Disperse as follows.
  • the polyanion used is selected as necessary, and specific examples thereof include gum arabic, sodium carboxymethylcellulose, sodium alginate, sodium polyvinylbenzenesulfonate, polyvinylmethyl ether / maleic anhydride copolymer, and the like. Of these, gum arabic and sodium carboxymethyl cellulose are preferably used.
  • the acid used at this time is preferably selected from those that do not impair the properties of the core material and the coating material, and those that do not inhibit the curing reaction.
  • organic acids such as acetic acid, citric acid, succinic acid, oxalic acid, lactic acid and salicylic acid, and inorganic acids such as hydrochloric acid, sulfuric acid and phosphoric acid are used.
  • the emulsion on which the coacervate film has been formed is subsequently cooled in order to gel the film.
  • the emulsion is cooled to 5 to 25 ° C., preferably 5 to 10 ° C. to gel the film.
  • a curing agent is subsequently mixed into the emulsion.
  • aldehydes such as formaldehyde and glutaraldehyde which are conventionally known, they cannot be alkali-soluble and cannot be used from the viewpoint of toxicity and environmental considerations.
  • oxazoline compounds are compounds having an oxazoline group as shown in (Chemical Formula 1), for example, 2,2′-bis- (2-oxazoline), 2,2′-methylene-bis- ( 2-oxazoline), 2,2'-ethylene-bis- (2-oxazoline), 2,2'-trimethylene-bis- (2-oxazoline), 2,2'-tetramethylene-bis- (2-oxazoline) 2,2'-hexamethylene-bis- (2-oxazoline), 2,2'-octamethylene-bis- (2-oxazoline), 2,2'-ethylene-bis- (4,4'-dimethyl- 2-oxazoline), 2,2'-p-phenylene-bis- (2-oxazoline), 2,2'-m-phenylene-bis- (2-oxazoline), 2,2'-m-phenylene-bis- (4 4'-dimethyl-2-oxazoline),
  • addition-polymerizable oxazoline compounds 2-vinyl-2-oxazoline, 2-vinyl-4-methyl-2-oxazoline, 2-vinyl-5-methyl-2-oxazoline, 2-isopropenyl-2-oxazoline, 2 -Isopropenyl-4-methyl-2-oxazoline, 2-isopropenyl-5-ethyl-2-oxazoline and the like. Those obtained by polymerizing or copolymerizing one or more of these compounds can be used.
  • the compound and (meth) acrylic acid esters such as methyl (meth) acrylate, butyl (meth) acrylate and 2-ethylhexyl (meth) acrylate; unsaturated nitriles such as (meth) acrylonitrile; Unsaturated amides such as meth) acrylamide and N-methylol (meth) acrylamide; vinyl esters such as vinyl acetate and vinyl propionate; vinyl ethers such as methyl vinyl ether and ethyl vinyl ether; ⁇ -olefins such as ethylene and propylene; Halogenated ⁇ , ⁇ -unsaturated monomers such as vinyl chloride, vinylidene chloride and vinyl fluoride; copolymers of ⁇ , ⁇ -unsaturated aromatic monomers such as styrene and ⁇ -methylstyrene Can also be used.
  • unsaturated nitriles such as (meth) acrylonitrile
  • Examples of such compounds include oxazoline compounds described in JP-A-5-25361, JP-A-11-231447, and the like.
  • Epocross WS-500 Specific examples include Epocross WS-700, Epocross K-1010E, Epocross K-1020E, Epocross K-1030E, Epocross K-2010E, Epocross K-2020E, Epocross K-2030E.
  • Epocros RPS-1005, Epocros RAS-1005 All manufactured by Nippon Shokubai Co., Ltd.), NK Linker FX (Shin Nakamura Chemical Co., Ltd.) and the like.
  • R1, R2, R3, and R4 each independently represent hydrogen, halogen, alkyl, aralkyl, phenyl, or substituted phenyl, and R5 represents an acyclic organic group having an addition polymerizable unsaturated bond.
  • the compound having an oxazoline group is preferably a polymer compound.
  • the polymer compound means a compound having a number average molecular weight of 10,000 or more.
  • effects such as further improvement of the strength of the microcapsule film and improvement of the holding ability of the inclusions can be obtained. This is presumed to be because the curing agent itself has film-forming properties, so that the coating substance is cured, and at the same time, a double coating is formed by the curing agent itself, thereby strengthening the microcapsule film.
  • the film forming property means having a film-like film forming property when a solution of a polymer compound having an oxazoline group alone is applied and evaporated to dryness.
  • the desired microcapsules can be obtained by operations such as filtration, decantation, dehydration, liquid separation, and drying as necessary.
  • the composition of the microcapsule contains a third component in a range that does not adversely affect the performance of the microcapsule, such as not inhibiting the curing by the oxazoline group compound, or to give a special effect.
  • a third component in a range that does not adversely affect the performance of the microcapsule, such as not inhibiting the curing by the oxazoline group compound, or to give a special effect.
  • the treatment temperature When an uncured gel film is cured in an aqueous solution, there is a problem in setting the treatment temperature to be higher than the gel point of the basic film substance. This is because a gel film that does not have heat resistance before curing readily dissolves in water at a temperature above its gel point. In addition, there is a problem that the microcapsules tend to aggregate at a temperature near the gel point. In particular, it is very difficult to dispose the basic film material at an arbitrary position and shape with respect to the periphery of the core material (encapsulated material) like a microcapsule and to desire curing while maintaining the state. For example, the general gel point of an aqueous gelatin solution, which is a kind of basic film material, is around 25 ° C.
  • Hardening with an oxazoline compound in the complex coacervation method needs to be performed after separating the uncured basic film substance (gelatin) microcapsule from the adjustment liquid and washing the microcapsule several times with water. If such an operation is not performed, sufficient curing cannot be achieved. This is because when microcapsules are prepared by the complex coacervation method, polyanions necessary for coacervation and undeposited (dissolved) basic coating substance (gelatin) molecules are present in the aqueous solution in which the microcapsules are dispersed. Is considered to exist. As the polyanion, a compound having a carboxyl group (such as gum arabic or carboxymethyl cellulose) is generally used. In addition, the basic film substance (gelatin) molecule naturally has a carboxyl group.
  • the oxazoline compound reacts with all the hydrophilic colloids having a carboxyl group to give microcapsules having a cured film.
  • a water-soluble protein is preferable, and gelatin is particularly preferable.
  • those having a pI (isoionic point) of 4.9 to 8.1 are desirable, and alkali-treated gelatin is more preferred. This is because gelatin in this range and type is likely to be a mononuclear microcapsule and contributes to the quick response to alkali solubilization.
  • the measured value of pI was a value obtained by treating an aqueous gelatin solution with an ion exchange resin and then measuring the pH of the aqueous gelatin solution at 35 ° C., but other commonly used pI (isoionic point) ) Measurements and equivalents can also be used.
  • the oxazoline compound forms a hardened film on gelatin in general, and a suitable microcapsule can be obtained.
  • a microcapsule using gelatin whose pI exceeds 8.1 for example, acid-treated gelatin
  • the microcapsules tend to aggregate together, making redispersion difficult.
  • pI represents an isoionic point of gelatin or the like, which can be said to indicate the amount of carboxyl groups and amino groups of the basic film substance (gelatin) molecules.
  • Gelatin with a low pI indicates that the acid amide bond of the amino acid side chain is decreased by deamidation and the carboxyl group is increased.
  • the oxazoline group reacts with the carboxyl group, it is considered that as the amount of the carboxyl group increases, the number of crosslinking points by the basic film substance (gelatin) and the oxazoline compound increases. That is, sufficient crosslinking can be secured, and it is presumed that stable microcapsules can be easily obtained over time.
  • the pI value is 4.9 to 8.1, it is easy to form a mononuclear microcapsule without aggregation.
  • the reaction between the oxazoline compound and the basic film material is r. t. Progress even under conditions. However, as in general organic reactions, it is desirable to advance the reaction by heating as much as possible. For this reason, it is possible to secure the reaction temperature and to perform a desired treatment in a shorter time by using a basic film substance having a gel point as high as possible.
  • the present invention can be used not only for the pants-type disposable diaper as in the above example but also for various disposable diapers such as a tape type and a pad type.
  • SYMBOLS 11 Liquid impervious sheet, 12 ... Exterior sheet, 12r ... Folded part, 25 ... Print sheet, 200 ... Interior body, 30 ... Top sheet, 40 ... Intermediate sheet, 50 ... Absorbing element, 56 ... Absorber, 58 ... Packaging sheet, 60 ... side barrier cuff, 62 ... barrier sheet.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Vascular Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN105030420A (zh) * 2015-06-08 2015-11-11 彭艳燕 液体卫生巾
CN106488759A (zh) * 2014-06-30 2017-03-08 尤妮佳股份有限公司 吸收性物品的制造方法

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JP7085403B2 (ja) * 2018-05-08 2022-06-16 花王株式会社 吸収性物品
WO2021038876A1 (ja) * 2019-08-30 2021-03-04 ユニ・チャーム株式会社 吸収性物品
JP2022057794A (ja) * 2020-09-30 2022-04-11 ユニ・チャーム株式会社 吸収性物品

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Publication number Priority date Publication date Assignee Title
JPS59106501A (ja) * 1982-12-08 1984-06-20 三井東圧化学株式会社 おむつ型着用品
JP2000093456A (ja) * 1998-09-25 2000-04-04 Sanyo Electric Co Ltd ニオイ発生用品、及び下着
JP2003210522A (ja) * 1997-06-16 2003-07-29 Kao Corp 吸収性物品
JP2006326221A (ja) * 2005-05-30 2006-12-07 Kao Corp 外装体及び吸収性物品
JP2007000756A (ja) * 2005-06-23 2007-01-11 Pilot Corporation アルカリ可溶性マイクロカプセル
JP2007268221A (ja) * 2006-03-31 2007-10-18 Daio Paper Corp 使い捨て紙おむつ
JP2009148531A (ja) * 2007-11-30 2009-07-09 Daio Paper Corp 使い捨ておむつ

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JPS59106501A (ja) * 1982-12-08 1984-06-20 三井東圧化学株式会社 おむつ型着用品
JP2003210522A (ja) * 1997-06-16 2003-07-29 Kao Corp 吸収性物品
JP2000093456A (ja) * 1998-09-25 2000-04-04 Sanyo Electric Co Ltd ニオイ発生用品、及び下着
JP2006326221A (ja) * 2005-05-30 2006-12-07 Kao Corp 外装体及び吸収性物品
JP2007000756A (ja) * 2005-06-23 2007-01-11 Pilot Corporation アルカリ可溶性マイクロカプセル
JP2007268221A (ja) * 2006-03-31 2007-10-18 Daio Paper Corp 使い捨て紙おむつ
JP2009148531A (ja) * 2007-11-30 2009-07-09 Daio Paper Corp 使い捨ておむつ

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106488759A (zh) * 2014-06-30 2017-03-08 尤妮佳股份有限公司 吸收性物品的制造方法
EP3162334A4 (en) * 2014-06-30 2017-06-28 Unicharm Corporation Method for manufacturing absorbent article
CN105030420A (zh) * 2015-06-08 2015-11-11 彭艳燕 液体卫生巾

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