JP4190332B2 - Disposable wearing items - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a disposable wearing article that absorbs and holds excrement.
[0002]
[Prior art]
  Consists of a liquid-permeable surface sheet positioned on the skin contact side, a liquid-impermeable back sheet positioned on the skin contact side, and a liquid-absorbent core interposed between the front and back sheets, and both ends of the core An inner surface of the end flap having a pair of end flaps extending laterally outwardly of the edge and a pair of side flaps extending laterally outward of both side edges of the core and extending longitudinally There is a disposable wearing article to which a breathable sweat absorbing sheet is attached (see Patent Document 1).
[0003]
  The article disclosed in Patent Document 1 is formed of front and back sheets whose end flaps extend longitudinally outward from both end edges of the core, and side flaps are formed of front and back sheets that extend laterally outward from both side edges of the core. ing. The sweat-absorbing sheet is formed from an upper layer located on the skin contact side and a lower layer located on the skin non-contact side. A fiber nonwoven fabric containing at least 20% hydrophilic fibers is used for the upper layer, and a hydrophobic fiber nonwoven fabric is used for the lower layer. In Patent Document 1, even if the wearer sweats while wearing the article, the sweat absorbing sheet attached to the end flap absorbs the sweat, so that the inside of the article can be prevented from being stuffed, and the rash and rash caused by sweat can be prevented. The effect that it can be prevented beforehand is described.
[0004]
[Patent Document 1]
          JP 2000-189454 A
[0005]
[Problems to be solved by the invention]
  In the wearing article disclosed in Patent Document 1, since the sweat absorbing sheet is attached to the inner surface of the end flap, even if the sweat absorbing sheet absorbs sweat during wearing of the article, the end flap generates water vapor generated when the sweat evaporates. Can not escape to the outside of the article. In this article, the sweat hardly evaporates, the sweat absorbing sheet that has absorbed the sweat remains wet, and the sweat absorbing sheet is sticky to the skin and is uncomfortable. Further, in this article, the sweat absorbing sheet is not attached to the side flap, and the side flap contacting the crotch portion of the wearer cannot absorb sweat.
[0006]
  An object of the present invention is to provide a disposable wearing article in which end flaps and side flaps quickly absorb the wearer's sweat, and the sweat absorbed by the flap easily evaporates, and there is no discomfort during wearing.
[0007]
[Means for Solving the Problems]
  The premise of the present invention for solving the above-mentioned problems is that the front waist area and the back waist area are provided in the vertical direction, and a crotch area located between the waist areas, and extends between the front and back waist areas. A disposable wearing article having a liquid absorption zone, an end flap that extends laterally outwardly of the absorption zone, and a side flap that extends laterally outward of the absorption zone and extends longitudinally is there.
[0008]
  The first feature of the present invention based on the premise is that the liquid absorption zone is formed between a liquid-permeable surface sheet positioned on the skin contact side, a liquid-impermeable back sheet positioned on the skin non-contact side, and the sheets. And at least one of the end flaps and the side flaps is a heat fusible and hydrophobic first fiber nonwoven fabric positioned on the skin contact side and skin contact A heat-fusible and hydrophilic second fiber nonwoven fabric located on the contact side;A hydrophobic third fiber nonwoven fabric located outside the second fiber nonwoven fabric;The first and second fiber nonwoven fabrics are formed from a composite sheet, and the skin contact from the skin non-contact side to the first thickness direction from the skin contact side to the skin non-contact side. Fixed through a plurality of heat-sealing portions that are recessed in at least the first thickness direction of the second thickness direction toward the side, and at least a part of the heat-sealing portion includes the first fiber nonwoven fabric and the first The fiber form of the two-fiber nonwoven fabric is maintained, and the fiber density of the composite sheet is higher than that of the remaining part of the composite sheet excluding the heat-sealed portion.The third fiber nonwoven fabric has a large number of apertures penetrating in the thickness direction, and the second fiber nonwoven fabric is exposed to the skin non-contact side from the aperture portions.There is.
[0009]
  Here, the heat-fusible fiber nonwoven fabric is a fiber nonwoven fabric formed of heat-fusible fibers that can be self-fused by heat without using an adhesive, or heat fusion that can be self-fused by heat. A fiber nonwoven fabric containing adhesive fibers.
[0010]
  As an example of an embodiment of the present invention having the first feature, the heat fusion parts are distributed and distributed substantially uniformly in the flap, and the ratio of the heat fusion parts per unit area of the flap is 2. A fiber density of 0.4 to 0.8 g / cm in the range of ˜40% and the composite sheet in the heat fusion part³There is a range.
[0011]
  The second feature of the present invention based on the premise is that the liquid absorption zone is formed between a liquid-permeable surface sheet positioned on the skin contact side, a liquid-impermeable back sheet positioned on the skin non-contact side, and the sheets. And at least one of the end flap and the side flap is located on the non-skin contact side with the hydrophobic first fiber nonwoven fabric located on the skin contact side. A hydrophilic second fiber nonwoven fabric andA hydrophobic third fiber nonwoven fabric located outside the second fiber nonwoven fabric;Is formed from a composite sheet to which the first fiber nonwoven fabric is attached, and the first fiber nonwoven fabric penetrates in the thickness direction.Opening partAnd the second fiber nonwoven fabric isOf the first non-woven fabricExposed from the opening to the skin contact sideThe third fiber nonwoven fabric has a large number of apertures penetrating in the thickness direction, and the second fiber nonwoven fabric is exposed to the skin non-contact side from the aperture portions of the third fiber nonwoven fabric.There is.
[0012]
  As an example of the embodiment of the present invention having the second feature,Of the first non-woven fabricOpenings are distributed and distributed substantially uniformly in the flap, and the unit area per unit area of the flapOf the first non-woven fabricThe ratio of the open part is in the range of 2 to 40%.
[0013]
  The present invention having the first and second features has the following embodiments.
(1)SaidOf the third fiber nonwoven fabricOpenings are distributed and distributed substantially uniformly in the flap, and the unit area per unit area of the flapOf the third fiber nonwoven fabricThe ratio of the open part is in the range of 2 to 40%.
(2)The basis weight of the first fiber nonwoven fabric is 30 g / m.²The fineness of the first non-woven fabric is 4 dtex or less.
(3)The value of qmax when the flap formed from the composite sheet is wet is 0.25 or less.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
  The details of the disposable wearing article according to the present invention will be described below with reference to the accompanying drawings.
[0015]
  1 and 2 are a partially broken perspective view of a wearing article 1A shown as an example and an end view taken along line II-II in FIG. 1, and FIG. 3 is an end view taken along line III-III in FIG. In FIG. 1, the horizontal direction is indicated by an arrow L, the vertical direction is indicated by an arrow M, and the thickness direction is indicated by an arrow N. The inner surfaces of the front and back sheets 8 and 9, the composite sheet 14, and the leak-proof sheet 18 are surfaces facing the core 10, and the outer surfaces of the sheets 8, 9, 14 and 18 are not facing the core 10. Of the face.
[0016]
  1 A of articles | goods are equipped with the front waist area 2 and the back waist area 4, and the crotch area 3 located between these waist areas 2 and 4 in a vertical direction, and absorb and hold | maintain the water | moisture content contained in urine and stool Liquid absorption zone 5, a pair of end flaps 6 positioned laterally outward of the absorption zone 5 and extending laterally, and a pair of side flaps positioned laterally outward of the absorption zone 5 and extending longitudinally 7. In the crotch region 3, the side flaps 7 are arcing inward in the lateral direction of the article 1A. The article 1A has a substantially hourglass shape in plan view. A pair of leak-proof sheets 18 extending in the vertical direction are attached to the article 1A.
[0017]
  The liquid absorption zone 5 is located at the center in the lateral direction between the front and rear waist regions 2 and 4 and the crotch region 3, and extends between the front and rear waist regions 2 and 4 in the vertical direction. The absorption zone 5 is interposed between the liquid-permeable surface sheet 8 positioned on the skin contact side, the liquid-impermeable back sheet 9 positioned on the skin non-contact side, and the front and back sheets 8 and 9. The absorbent core 10 is fixed to the inner surface of at least one of the sheets 8 and 9.
[0018]
  The end flaps 6 are formed from front and back sheets 8 and 9 that extend outward in the longitudinal direction from both end edges 10 a of the core 10. In the end flap 6, the front and back sheets 8 and 9 overlap each other, and the inner surfaces of the sheets 8 and 9 are fixed to each other. A plurality of waist elastic members 11 extending in the lateral direction are attached to the end flap 6 in the rear waist area 4 so as to be shrinkable. The waist elastic member 11 is interposed between the front and back sheets 8 and 9 and is fixed to the inner surfaces of the sheets 8 and 9.
[0019]
  Most of the side flaps 7 are formed from a composite sheet 14 in which a heat-sealable and hydrophobic first fiber nonwoven fabric 12 and a heat-sealable and hydrophilic second fiber nonwoven fabric 13 are overlapped. In the composite sheet 14, the 1st fiber nonwoven fabric 12 is located in the skin contact side, and the 2nd fiber nonwoven fabric 13 is located in the skin non-contact side. In the side flap 7, the front and back sheets 8, 9 slightly extend outward in the lateral direction from both side edges 10 b of the core 10, and the inner surfaces of the overlapping sheets 8, 9 are fixed to each other. Is fixed to the outer surface of the back sheet 9. A plurality of leg-around elastic members 15 extending in the vertical direction are attached to the side flaps 7 so as to be shrinkable. The leg-around elastic member 15 is interposed between the front and back sheets 8 and 9 and is fixed to the inner surfaces of the sheets 8 and 9.
[0020]
  The 1st and 2nd fiber nonwoven fabrics 12 and 13 pass through many heat fusion parts 16 dented in the thickness direction (1st thickness direction) of these nonwoven fabrics 12 and 13 toward the skin non-contact side from the skin contact side. It is fixed.
[0021]
  As an example of fixing the first and second fiber nonwoven fabrics 12 and 13, an ultrasonic bonding technique can be used. In ultrasonic bonding, among the laminated nonwoven fabrics 12 and 13, the first fiber nonwoven fabric 12 is opposed to the anvil roll engraved with the embossed shape, and the second fiber nonwoven fabric 13 is opposed to the horn. In ultrasonic bonding, the first and second fiber nonwoven fabrics 12 and 13 are pressed with a horn and an anvil, and ultrasonic waves are applied to the nonwoven fabrics 12 and 13 from the horn, whereby the fibers constituting the nonwoven fabrics 12 and 13 are formed. The two are heat-sealed. The composite sheet 14 formed from the first and second fiber nonwoven fabrics 12 and 13 is formed with a large number of heat fusion portions 16 that are recessed in the thickness direction (first thickness direction) of the nonwoven fabrics 12 and 13.
[0022]
  As another example of fixing the first and second fiber nonwoven fabrics 12 and 13, a hot press bonding technique can be used. In the hot press bonding, an embossing roll having a large number of protrusions on the peripheral surface and a flat roll having a flat peripheral surface are used, and the rolls of the first and second fiber nonwoven fabrics 12 and 13 superimposed on each other are arranged to face each other. Let it go in between. At this time, the 1st fiber nonwoven fabric 12 is made to oppose an embossing roll, and the 2nd fiber nonwoven fabric 13 is made to oppose a flat roll. At least the embossing roll among these rolls is heated to a predetermined temperature. The first and second fiber nonwoven fabrics 12 and 13 that have entered between the rolls are pressed by the protrusions and the peripheral surface of the flat roll, and heat is applied from the protrusions to form the fibers constituting the nonwoven fabrics 12 and 13. The two are heat-sealed. The composite sheet 14 formed from the first and second fiber nonwoven fabrics 12 and 13 is formed with a large number of heat fusion portions 16 that are recessed in the thickness direction (first thickness direction) of the nonwoven fabrics 12 and 13.
[0023]
  In the heat sealing | fusion part 16, the fiber form of these nonwoven fabrics 12 and 13 is maintained, without forming the 1st and 2nd fiber nonwoven fabrics 12 and 13 into a film. If it is ultrasonic bonding, the fiber form of these nonwoven fabrics 12 and 13 in the heat-sealing part 16 is maintained by adjusting the ultrasonic energy applied from the horn or adjusting the pressure between the horn and the anvil. Can do. If it is a hot press, the fiber form of these nonwoven fabrics 12 and 13 in the heat-fusion part 16 can be maintained by adjusting the temperature applied from the protrusions or adjusting the pressure between the protrusions and the flat roll. .
[0024]
  In the heat fusion part 16, the fiber density of the composite sheet 14 is higher than that of the remaining portion 17 of the composite sheet 14 excluding the heat fusion part 16. In the remaining part 17 excluding the heat fusion part 16, although the 1st and 2nd fiber nonwoven fabrics 12 and 13 overlap, those nonwoven fabrics 12 and 13 are not adhering. The heat fusion part 16 has a substantially small circular shape, and is distributed and distributed substantially uniformly in the side flaps 7. The heat fusion part 16 preferably has a diameter in the range of 1 to 3 mm, and preferably has a separation dimension between the heat fusion parts 16 in the range of 0.5 to 4 mm.
[0025]
  The leak-proof sheet 18 is positioned on the side flap 7 and extends in the vertical direction, the movable side 18b extending in the vertical direction with a standing tendency upward above the top sheet 8, and the front and rear waist area 2, 4 and fixed both end portions 18c lying inward in the lateral direction of the article 1A. The fixed side portion 18a and the fixed end portions 18c are fixed to the top sheet 8 and a part of the first fiber nonwoven fabric 12 while being sandwiched between them. A stretchable elastic member 19 extending in the vertical direction is attached above the movable portion 18b so as to be shrinkable. The elastic member 19 is fixed to the movable part 18b in a state covered with a part of the movable part 18b. In the leak-proof sheet 18, when the article 1A is bent in the longitudinal direction with the surface sheet 8 inside, the elastic member 19 contracts and the movable part 18b rises above the surface sheet 8, and the movable part 18b becomes a barrier against excrement. Form.
[0026]
  A tape fastener 20 extends laterally outward from the side flap 7 in the rear waistline region 4. The tape fastener 20 is formed from the composite sheet 14. A hook member 21 of the mechanical fastener is fixed to the inner surface of the composite sheet 14 forming the tape fastener 20. A flexible target tape 22 for removably fastening the tape fastener 20 is attached to the front waistline region 2. The target tape 22 is formed of a plastic film having a loop member (not shown) of mechanical fasteners. The target tape 22 is fixed to the outer surfaces of the back sheet 9 and the composite sheet 14.
[0027]
  In order to wear the article 1A, the side flaps 7 in the rear waistline region 4 are overlapped on the outside of the side flaps 7 in the front waistline region 2, and the hook member 21 is engaged with the loop member to The rear waist area 4 is connected. In the article 1A in which the front and rear waist regions 2, 4 are connected, a waist opening and a pair of leg openings are formed below (not shown).
[0028]
  In the article 1A, the side flap 7 is formed from a composite sheet 14 having a large number of heat-sealing portions 16, and the fiber density of the composite sheet 14 in the heat-sealing portion 16 is that of the remaining portion 17 excluding the heat-sealing portion 16. Since the capillarity acts strongly in the heat-sealed portion 16, even if the first fiber nonwoven fabric 12 forming the composite sheet 14 is hydrophobic, the moisture is passed through the heat-fused portion 16 through the first fibers. Transition from the nonwoven fabric 12 to the hydrophilic second fiber nonwoven fabric 13.
[0029]
  When the article 1A is worn, the sweat of the wearer smoothly shifts from the first fiber nonwoven fabric 12 to the second fiber nonwoven fabric 13 by the capillary phenomenon in the heat-sealed portion 16, and the hydrophilic second fiber nonwoven fabric 13. Can absorb sweat quickly. When the article 1A is worn, the second fiber nonwoven fabric 13 positioned on the non-skin contact side is exposed to the outside of the article 1A. Therefore, even if the side flap 7 absorbs sweat, the sweat evaporates. Can be released from the second nonwoven fabric 13 to the outside of the article 1A. In the article 1A, the second fiber nonwoven fabric 13 that has absorbed the sweat is easy to dry, and the sweat easily evaporates from the side flap 7, so that the side flap 7 does not stick to the skin and there is no discomfort with the worn article 1A. .
[0030]
  In the article 1A, the ratio of the heat fusion part 16 per unit area of the side flap 7 is in the range of 2 to 40%, preferably in the range of 5 to 20%, and the fiber of the composite sheet 14 in the heat fusion part 16 Density is 0.4-0.8g / cm³There is a range. If the proportion of the heat-sealed portion 16 is less than 2%, sweat cannot be smoothly transferred from the first fiber nonwoven fabric 12 to the second fiber nonwoven fabric 13, and the sweat remains on the inner surface of the composite sheet 14, and the side flap 7 May become wet and sticky to the skin. Since the rigidity of the composite sheet 14 is increased in the heat-sealed portion 16, when the ratio of the heat-fused portion 16 exceeds 40%, the flexibility of the side flap 7 is lowered and the side flap 7 is in contact with the skin. Is uncomfortable.
[0031]
  The fiber density of the composite sheet 14 in the heat fusion part 16 is 0.4 g / cm.³If it is less than that, it becomes difficult for the capillary phenomenon to act on the heat fusion part 16, and sweat cannot be smoothly transferred from the first fiber nonwoven fabric 12 to the second fiber nonwoven fabric 13 via the heat fusion part 16. The fiber density of the composite sheet 14 in the heat fusion part 16 is 0.8 g / cm.³Exceeding the value increases the rigidity of the composite sheet 14 and decreases the flexibility of the side flap 7, and there is an uncomfortable feeling when the side flap 7 contacts the skin.
[0032]
  In the article 1A, the basis weight of the first fiber nonwoven fabric 12 is 30 g / m.²The fineness of the first fiber nonwoven fabric 12 is 4 dtex or less. The basis weight of the first fiber nonwoven fabric 12 is 30 g / m.²Exceeding the thickness, the thickness of the nonwoven fabric 12 increases, so when the first and second fiber nonwoven fabrics 12 and 13 are fixed by the heat-sealed portion 16, a high pressure must be applied to the nonwoven fabrics 12 and 13, In the heat fusion part 16, the 1st and 2nd fiber nonwoven fabrics 12 and 13 may turn into a film. When the fineness of the first fiber nonwoven fabric 12 exceeds 4 dtex, the capillary phenomenon does not easily act on the first fiber nonwoven fabric 12, and sweat is smoothly transferred from the first fiber nonwoven fabric 12 to the second fiber nonwoven fabric 13 via the heat-sealed portion 16. Cannot be transferred to. Moreover, the rigidity of the 1st fiber nonwoven fabric 12 increases, the softness | flexibility of the side flap 7 falls, and there exists a discomfort when the side flap 7 touches skin.
[0033]
  In the article 1A, the value of qmax when the side flap 7 formed from the composite sheet 14 is wet is 0.25 or less. In addition, the value of qmax when the flap 7 is dried is lower than that of the qmax when wet and is 0.15 or less. Here, qmax is defined as follows. A skin sensation that feels cold when touching an object is called a cold feeling of contact, and an index that changes according to a difference in the amount of heat transferred from a person's skin to an object is represented by a maximum heat absorption rate (qmax). The larger the value, the lower the value of qmax, and the lower the qmax value, the higher the value. The thermal conductivity of water is about 25 times that of air, and when the moisture-containing flap 7 comes into contact with the skin, the thermal conductivity is about 25 times that when the flap 7 is dried, and heat is transferred from the skin. There is discomfort due to the coldness.
[0034]
  When the value of qmax when the side flaps 7 are wet exceeds 0.25, the side flaps 7 in contact with the skin give the wearer a cold feel, and there is an uncomfortable feeling when wearing the article 1A. In addition, qmax was measured with the following method.
(1) The composite sheet 14 is cut from the side flap 7 of the article 1A, and a 10 cm × 10 cm qmax measurement sample is prepared.
(2) qmax was measured using a precise rapid thermophysical property measuring apparatus (KES-F-M7 THERMO LABO II TYPE) manufactured by Kato Tech Co., Ltd. in a constant temperature and humidity chamber at a temperature of 20 ° C. and a humidity of 60%. The measuring device is formed of a T-BOX having a heat storage plate and a WATER-BOX having a water supply pump.
(3) The measurement of qmax when the flap 7 is dried is as follows. Place the sample on the WATER-BOX, place the T-BOX on the sample, sandwich the sample between the WATER-BOX and T-BOX, and set the qmax value displayed on the T-BOX to the value when the flap 7 is dry. Let qmax at. The measurement conditions at this time are T-BOX temperature: 35 ° C., WATER-BOX temperature: 20 ° C., and sample temperature: 20 ° C.
(4) The measurement of qmax when the flap 7 is wet is as follows. The sample after measuring qmax during drying is allowed to stand until the temperature reaches 20 ° C. Next, 6 ml of 20 ° C. tap water is sprinkled on the sample, and after the sample has absorbed tap water, the absorbed sample is placed on the WATER-BOX and the T-BOX is placed on the sample. Is sandwiched between WATER-BOX and T-BOX, and the value of qmax displayed on T-BOX is defined as qmax when flap 7 is wet. The measurement conditions at this time are T-BOX temperature: 35 ° C., WATER-BOX temperature: 20 ° C., and sample temperature: 20 ° C.
[0035]
  Since the value of qmax when the side flap 7 is wet is not more than 0.25, the article 1A is cold to the wearer not only when the flap 7 is dried but also when the flap 7 that absorbs sweat and touches the skin. It does not give a touch.
[0036]
  4 and 5 are a partially broken perspective view of a wearing article 1B shown as another example, and an end view taken along the line VV of FIG. In FIG. 4, the horizontal direction is indicated by an arrow L, the vertical direction is indicated by an arrow M, and the thickness direction is indicated by an arrow N.
[0037]
  The article 1B includes front and rear waist regions 2, 4 and a crotch region 3, and includes a liquid absorption zone 5, a pair of end flaps 6 extending in the horizontal direction, and a pair of side flaps 7 extending in the vertical direction. A pair of leak-proof sheets 18 extending in the vertical direction are attached to the side flaps 7.
[0038]
  The liquid absorption zone 5 is formed by a liquid-permeable top sheet 8 and a liquid-impervious back sheet 9 and a liquid-absorbent core 10 interposed between the front and back sheets 8 and 9. It extends in between. The end flaps 6 are formed from front and back sheets 8 and 9 that extend outward in the longitudinal direction from both end edges 10 a of the core 10. A plurality of waist elastic members 11 extending in the lateral direction are attached to the end flap 10a so as to be shrinkable.
[0039]
  Most of the side flaps 7 are formed by superimposing a heat-sealable and hydrophobic first fiber nonwoven fabric 12, a heat-sealable and hydrophilic second fiber nonwoven fabric 13, and a hydrophobic third fiber nonwoven fabric 23. The composite sheet 24 is formed. In the composite sheet 24, the first fiber nonwoven fabric 12 is located on the skin contact side, the third fiber nonwoven fabric 23 is located on the skin non-contact side, and the second fiber nonwoven fabric 13 is the first and third fiber nonwoven fabrics 12, 23. In the side flap 7, the front and back sheets 8, 9 slightly extend outward in the lateral direction from both side edges 10 b of the core 10, and the inner surfaces of the overlapping sheets 8, 9 are fixed to each other. Is fixed to the outer surface of the back sheet 9. A plurality of leg-around elastic members 15 extending in the vertical direction are attached to the side flaps 7 so as to be shrinkable.
[0040]
  The first and second fiber nonwoven fabrics 12 and 13 are recessed in the thickness direction (first thickness direction) of the nonwoven fabrics 12 and 13 from the skin contact side toward the skin non-contact side and from the skin non-contact side to the skin. The non-woven fabrics 12 and 13 are fixed to each other through a large number of heat-sealing portions 16 that are recessed in the thickness direction (second thickness direction) toward the contact side. As for the 2nd and 3rd fiber nonwoven fabrics 13 and 23, the opposing surface of these nonwoven fabrics 13 and 23 is adhere | attached intermittently via the adhesive agent (not shown). The third fiber nonwoven fabric 23 has a large number of penetrates in the thickness direction.Opening part 25Have The 2nd fiber nonwoven fabric 13 is exposed to the skin non-contact side from the opening part 25. FIG.
[0041]
  In order to fix the first and second fiber nonwoven fabrics 12 and 13 in the article 1B, a technique of hot press bonding can be used. In hot press bonding, a pair of embossing rolls having a large number of protrusions on the peripheral surface is used, and the non-woven fabrics 12 and 13 overlapped are made to enter between the rolls arranged to face each other. These rolls are heated to a predetermined temperature. The first and second fiber nonwoven fabrics 12 and 13 that have entered between these rolls are pressed and heated by the protrusions, and the fibers constituting the nonwoven fabrics 12 and 13 are heat-sealed. The composite sheet 24 is formed with a large number of heat-sealing portions 16 that are recessed in the thickness direction (first and second thickness directions) of the nonwoven fabrics 12 and 13.
[0042]
  In the heat sealing | fusion part 16 of the composite sheet 24, the fiber form of these nonwoven fabrics 12 and 13 is maintained, without forming the 1st and 2nd fiber nonwoven fabrics 12 and 13 into a film. In addition, the fiber form of these nonwoven fabrics 12 and 13 in the heat sealing | fusion part 16 can be maintained by adjusting the temperature applied from protrusion and adjusting the pressure of protrusions. In the heat fusion part 16, the fiber density of the composite sheet 24 is higher than that of the remaining portion 17 of the composite sheet 24 excluding the heat fusion part 16. In the remaining part 17 excluding the heat fusion part 16, these nonwoven fabrics 12 and 13 are not fixed.
[0043]
  The heat-sealing part 16 and the opening part 25 have a substantially small circular shape, and are distributed and distributed substantially uniformly in the side flaps 7. The diameter and the separation dimension of the heat fusion part 16 are the same as those in FIG. The diameter of the apertures 25 is preferably in the range of 1 to 3 mm, and the distance between the apertures 25 is preferably in the range of 0.5 to 4 mm.
[0044]
  The leak-proof sheet 18 has a fixed side portion 18a extending in the vertical direction, a movable portion 18b having an upward propensity toward the upper side of the topsheet 8, and fixed both end portions 18c lying inward in the lateral direction of the article 1B. The fixed side portion 18a and the fixed both end portions 18c are fixed to the top sheet 8 and the first fiber nonwoven fabric 12 while being sandwiched between them. A stretchable elastic member 19 extending in the vertical direction is attached above the movable portion 18b so as to be shrinkable. In the leak-proof sheet 18, the movable part 18b stands up above the top sheet 8 to form a barrier against excrement.
[0045]
  A tape fastener 20 extends laterally outward from the side flap 7 in the rear waistline region 4. A target tape 22 for attaching the tape fastener 20 in a detachable manner is attached to the front waistline region 2. The tape fastener 20 and the target tape 22 are the same as those in FIG.
[0046]
  In the article 1B, the fiber density of the composite sheet 24 in the heat fusion part 16 is higher than that in the remaining part 17 excluding the heat fusion part 16, and the capillary phenomenon acts strongly in the heat fusion part 16, so the article 1B When the wearer wears, the sweat of the wearer can be smoothly transferred from the first fiber nonwoven fabric 12 to the hydrophilic second fiber nonwoven fabric 13 by the capillary phenomenon, and the second fiber nonwoven fabric 13 can quickly absorb the sweat. In the article 1B, since the second fiber nonwoven fabric 13 is exposed to the non-skin contact side from the opening 25 of the third fiber nonwoven fabric 23, the sweat evaporates even if the second fiber nonwoven fabric 13 absorbs the sweat. Water vapor generated sometimes can be released from the opening 25 to the outside of the article 1B. In the article 1B, the second fiber nonwoven fabric 13 that has absorbed the sweat easily dries, and the sweat easily evaporates from the side flap 7, so that the side flap 7 does not stick to the skin and there is no discomfort with the worn article 1B. .
[0047]
  In the article 1B, since the third fiber nonwoven fabric 23 is fixed to the outside of the second fiber nonwoven fabric 13, it is possible to reduce the contact area of the second fiber nonwoven fabric 13 wetted by absorbing sweat with the hands and arms. The discomfort caused by the wet second fiber nonwoven fabric 13 coming into contact with the hand or arm can be reduced.
[0048]
  The ratio of the heat fusion part 16 per unit area of the side flap 7 and the fiber density of the composite sheet 24 in the heat fusion part 16 are the same as those of the article 1A of FIG. In addition, the reason which prescribes | regulates the ratio of the heat-fusion part 16 and the fiber density of the composite sheet 24 is the same as that of the goods 1A of FIG. The value of qmax when the side flap 7 formed from the composite sheet 24 is wet is 0.25 or less, and the value of qmax when the side flap 7 is dried is 0.15 or less. The method of measuring qmax is the same as that of the article 1A in FIG.
[0049]
  In the article 1B, the ratio of the opening portions 25 per unit area of the side flap 7 is in the range of 2 to 40%, preferably in the range of 5 to 20%. If the ratio of the opening portion 25 is less than 2%, water vapor generated when the sweat dries cannot be released from the opening portion 25 to the outside of the article 1B, and the second fiber nonwoven fabric 13 that has absorbed the sweat is difficult to dry. Become. When the ratio of the opening portion 25 exceeds 40%, the exposed area from the opening portion 25 of the second fiber nonwoven fabric 13 increases, and the second fiber nonwoven fabric 13 that has absorbed and sweated the sweat contacts the hands and arms. And uncomfortable. Since the value of qmax when the flap 7 is wet is 0.25 or less, the article 1B does not give a cold feeling to the wearer even if the flap 7 wet by absorbing sweat contacts the skin.
[0050]
  6 and 7 are a partially cutaway perspective view of a wearing article 1C shown as another example, an end view taken along line VII-VII in FIG. 6, and FIG. 8 is an end view taken along line VIII-VIII in FIG. In FIG. 6, the horizontal direction is indicated by an arrow L, the vertical direction is indicated by an arrow M, and the thickness direction is indicated by an arrow N.
[0051]
  The article 1C includes a front waistline region 2 and a back waistline region 4 in the longitudinal direction, and a crotch region 3 positioned between the waist region 2 and 4, and absorbs and retains moisture contained in urine and stool. Liquid absorption zone 5, a pair of end flaps 6 positioned laterally outward of the absorption zone 5 and extending laterally, and a pair of side flaps positioned laterally outward of the absorption zone 5 and extending longitudinally 7. In the crotch region 3, the side flaps 7 form an arc inward in the lateral direction of the article 1C. The article 1C has a substantially hourglass shape in plan view. A pair of leak-proof sheets 18 extending in the vertical direction is attached to the article 1C.
[0052]
  The liquid absorption zone 5 is located at the center in the lateral direction between the front and rear waist regions 2 and 4 and the crotch region 3, and extends between the front and rear waist regions 2 and 4 in the vertical direction. The absorption zone 5 is interposed between the liquid-permeable surface sheet 8 positioned on the skin contact side, the liquid-impermeable back sheet 9 positioned on the skin non-contact side, and the front and back sheets 8 and 9. The absorbent core 10 is fixed to the inner surface of at least one of the sheets 8 and 9.
[0053]
  Most of the end flaps 6 and the side flaps 7 are formed from a composite sheet 28 in which a hydrophobic first fiber nonwoven fabric 26 and a hydrophilic second fiber nonwoven fabric 27 are overlapped. In the composite sheet 28, the first fiber nonwoven fabric 26 is located on the skin contact side, and the second fiber nonwoven fabric 27 is located on the skin non-contact side. As for the 1st fiber nonwoven fabric 26 and the 2nd fiber nonwoven fabric 27, the opposing surface of these nonwoven fabrics 26 and 27 is adhere | attached intermittently via the adhesive agent (not shown).
[0054]
  In the end flap 6, the front and back sheets 8, 9 slightly extend from both end edges 10 a of the core 10 to the outside in the vertical direction, and the inner surfaces of the sheets 8, 9 that overlap each other are fixed to each other. Is fixed to the outer surface of the second fiber nonwoven fabric 27 that forms the back sheet 9 and the side flaps 7. In the side flap 7, the front and back sheets 8, 9 slightly extend outward from the both side edges 10 b of the core 10, and the inner surfaces of the overlapping sheets 8, 9 are fixed to each other. Is fixed to the outer surface of the back sheet 9.
[0055]
  A plurality of waist elastic members 11 extending in the lateral direction are attached to the end flap 6 in the rear waist area 4 so as to be shrinkable. A plurality of leg-around elastic members 15 extending in the vertical direction are attached to the side flaps 7 so as to be shrinkable. The waist elastic member 11 is interposed between the first and second fiber nonwoven fabrics 26 and 27 and is fixed to the opposing surfaces of the nonwoven fabrics 26 and 27. The leg-around elastic member 15 is interposed between the front and back sheets 8 and 9 and is fixed to the inner surfaces of the sheets 8 and 9.
[0056]
  The first fiber nonwoven fabric 26 has a large number of penetrates in the thickness direction.Opening part 29Have The second fiber nonwoven fabric 27 is exposed from the opening 29 to the skin contact side. The opening portions 29 have a substantially small circular shape, and are distributed and distributed substantially uniformly in the flaps 6 and 7. The diameter of the apertures 29 is preferably in the range of 1 to 3 mm, and the distance between the apertures 29 is preferably in the range of 0.5 to 4 mm.
[0057]
  The leak-proof sheet 18 is positioned on the side flap 7 and extends in the vertical direction, the movable side 18b extending in the vertical direction with a standing tendency upward above the top sheet 8, and the front and rear waist area 2, 4 and fixed both end portions 18c lying inward in the lateral direction of the article 1C. The fixed side portion 18a and the fixed both end portions 18c are fixed to the top sheet 8 and a part of the first fiber nonwoven fabric 26 that forms the side flaps 7 while being sandwiched between them. A stretchable elastic member 19 extending in the vertical direction is attached above the movable portion 18b so as to be shrinkable. The elastic member 19 is fixed to the movable part 18b in a state covered with a part of the movable part 18b. In the leak-proof sheet 18, when the article 1C is bent in the longitudinal direction with the top sheet 8 inside, the elastic member 19 contracts and the movable part 18b rises above the top sheet 8, and the movable part 18b becomes a barrier against excrement. Form.
[0058]
  A tape fastener 20 extends laterally outward from the side flap 7 in the rear waistline region 4. The tape fastener 20 is formed from the composite sheet 28. The hook member 21 of the mechanical fastener is fixed to the inner surface of the composite sheet 28 forming the tape fastener 20. A flexible target tape 22 for removably fastening the tape fastener 20 is attached to the front waistline region 2. The target tape 22 is formed of a plastic film having a loop member (not shown) of mechanical fasteners. The target tape 22 is fixed to the outer surfaces of the back sheet 8 and the composite sheet 28.
[0059]
  In the article 1C, a large number of apertures 29 are formed in the first fiber nonwoven fabric 26, and the second fiber nonwoven fabric 27 is exposed from the aperture 29 to the skin contact side. 29 is quickly absorbed by the hydrophilic second fiber nonwoven fabric 27. When the article 1C is worn, the second fiber nonwoven fabric 27 located on the non-skin contact side is exposed to the outside of the article 1C. Therefore, even if the flaps 6 and 7 absorb the sweat, the sweat evaporates. The water vapor generated during the process can escape from the second fiber nonwoven fabric 27 to the outside of the article 1C. In the article 1C, the second fiber nonwoven fabric 27 that has absorbed the sweat is easy to dry, and the sweat easily evaporates from the flaps 6 and 7, so that the flaps 6 and 7 do not stick to the skin. There is no discomfort.
[0060]
  In the article 1C, the ratio of the opening portions 29 per unit area of the flaps 6 and 7 is in the range of 2 to 40%, preferably in the range of 5 to 20%. If the ratio of the opening portion 29 is less than 2%, sweat cannot be smoothly transferred from the first fiber nonwoven fabric 26 to the second fiber nonwoven fabric 27, and the sweat remains on the inner surface of the composite sheet 28, and the flaps 6, 7 May become wet and sticky to the skin. When the ratio of the open part 29 exceeds 40%, the exposed area from the open part 29 of the second fiber nonwoven fabric 27 increases, and the second fiber nonwoven fabric 27 that has absorbed and sweated sweat is in contact with the skin and is uncomfortable. There is.
[0061]
  In the article 1C, the basis weight of the first fiber nonwoven fabric 26 is 30 g / m.²The fineness of the first fiber nonwoven fabric 26 is 4 dtex or less. The basis weight of the first fiber nonwoven fabric 26 is 30 g / m.²When the fineness of the first fiber nonwoven fabric 26 exceeds 4 dtex, the thickness and rigidity of the first fiber nonwoven fabric 26 increase, the flexibility of the flaps 6 and 7 decreases, and the flaps 6 and 7 contact the skin. When you are uncomfortable.
[0062]
  The article 1C has a qmax value of 0.25 or less when the flaps 6 and 7 formed from the composite sheet 28 are wet, and a qmax value of 0.15 or less when the flaps 6 and 7 are dried. . When the value of qmax of the flaps 6 and 7 exceeds 0.25, when the flaps 6 and 7 that have absorbed and sweated contact with the skin, the wearer feels a cold feeling, and discomfort is felt when the article 1C is worn. is there. However, since this article 1C has a qmax value of 0.25 or less when the flaps 6 and 7 are wet, even if the flaps 6 and 7 that absorb moisture and come into contact with the skin, the wearer feels cold. Never give. The method of measuring qmax is the same as that of the article 1C in FIG.
[0063]
  9 and 10 are a partially broken perspective view of a wearing article 1D shown as another example, and an end view taken along the line XX of FIG. 9, and FIG. 11 is an end view taken along the line XI-XI of FIG. In FIG. 9, the horizontal direction is indicated by an arrow L, the vertical direction is indicated by an arrow M, and the thickness direction is indicated by an arrow N.
[0064]
  The article 1D includes front and rear waist areas 2, 4 and a crotch area 3, and includes a liquid absorption zone 5, a pair of end flaps 6 extending in the horizontal direction, and a pair of side flaps 7 extending in the vertical direction. A pair of leak-proof sheets 18 extending in the vertical direction are attached to the side flaps 7. The liquid absorption zone 5 is formed of a liquid-permeable top sheet 8 and a liquid-impervious back sheet 9 and a liquid-absorbent core 10 interposed between the front and back sheets 8 and 9.
[0065]
  The end flap 6 and the side flap 7 are mostly composite sheets 31 in which a first hydrophobic nonwoven fabric 26, a hydrophilic second fiber nonwoven fabric 27, and a hydrophobic third fiber nonwoven fabric 30 are superposed. Formed from. In the composite sheet 31, the first fiber nonwoven fabric 26 is positioned on the skin contact side, the third fiber nonwoven fabric 30 is positioned on the skin non-contact side, and the second fiber nonwoven fabric 27 is the first and third fiber nonwoven fabrics 26, 30 is interposed. As for the 1st and 2nd fiber nonwoven fabrics 26 and 27, the opposing surface of these nonwoven fabrics 26 and 27 is adhering intermittently via the adhesive agent (not shown). As for the 2nd and 3rd fiber nonwoven fabrics 27 and 30, the opposing surface of these nonwoven fabrics 27 and 30 is adhere | attached intermittently via the adhesive agent (not shown).
[0066]
  In the end flap 6, the front and back sheets 8, 9 slightly extend from both end edges 10 a of the core 10 to the outside in the vertical direction, and the inner surfaces of the sheets 8, 9 that overlap each other are fixed to each other. Is fixed to the outer surface of the second fiber nonwoven fabric 27 that forms the back sheet 9 and the side flaps 7. In the side flap 7, the front and back sheets 8, 9 slightly extend outward from the both side edges 10 b of the core 10, and the inner surfaces of the overlapping sheets 8, 9 are fixed to each other. Is fixed to the outer surface of the back sheet 9.
[0067]
  A plurality of waist elastic members 11 extending in the lateral direction are attached to the end flap 6 so as to be shrinkable. A plurality of leg-around elastic members 15 extending in the vertical direction are attached to the side flaps 7 so as to be shrinkable. The waist elastic member 11 is interposed between the first and second fiber nonwoven fabrics 26 and 27 and is fixed to the opposing surfaces of the nonwoven fabrics 26 and 27.
[0068]
  The first fiber nonwoven fabric 26 has a large number of penetrates in the thickness direction.Opening part 29Have The third fiber nonwoven fabric 30 has a large number of penetrations in the thickness direction.Opening part 32Have The second non-woven fabric 27 is exposed from the opening 29 to the skin contact side, and is exposed from the opening 32 to the non-skin contact side. The apertures 29 and 32 have a substantially small circular shape, and are distributed and distributed substantially uniformly in the flaps 6 and 7. The diameter and the separation dimension of the opening 29 are the same as those in FIG. The diameter of the apertures 32 is preferably in the range of 1 to 3 mm, and the distance between the apertures 32 is preferably in the range of 0.5 to 4 mm.
[0069]
  The leak-proof sheet 18 has a fixed side portion 18a extending in the vertical direction, a movable portion 18b having a tendency to stand up above the topsheet 8, and fixed both end portions 18c lying inward in the lateral direction of the article 1D. The fixed side portion 18a and the fixed both end portions 18c are fixed to the top sheet 8 and a part of the first fiber nonwoven fabric 26 that forms the side flap 7 and are fixed to them. A stretchable elastic member 19 extending in the vertical direction is attached above the movable portion 18b so as to be shrinkable. In the leak-proof sheet 18, the movable part 18b stands up above the top sheet 8 to form a barrier against excrement.
[0070]
  A tape fastener 20 extends laterally outward from the side flap 7 in the rear waistline region 4. A target tape 22 for attaching the tape fastener 20 in a detachable manner is attached to the front waistline region 2. The tape fastener 20 and the target tape 22 are the same as those in FIG.
[0071]
  Since the article 1D has a large number of apertures 29 formed in the first fiber nonwoven fabric 26 and the second fiber nonwoven fabric 27 is exposed from the aperture 29 to the skin contact side, the sweat of the wearer is the aperture 29 is quickly absorbed by the hydrophilic second fiber nonwoven fabric 27. In the article 1D, a large number of apertures 32 are formed in the third fiber nonwoven fabric 30, and the second fiber nonwoven fabric 27 is exposed from the aperture 32 to the non-skin contact side. Even if the water is absorbed, the water vapor generated when the sweat evaporates can escape from the opening 32 to the outside of the article 1D. In the article 1D, the second fiber nonwoven fabric 27 that has absorbed the sweat easily dries, and the sweat easily evaporates from the flaps 6 and 7, so that the flaps 6 and 7 do not stick to the skin, and the article 1D is not resistant to the worn article 1D. There is no pleasure.
[0072]
  In the article 1D, since the third fiber nonwoven fabric 30 is fixed to the outside of the second fiber nonwoven fabric 27, it is possible to reduce the contact area of the second fiber nonwoven fabric 27 wet by absorbing sweat with the hands and arms. The uncomfortable feeling due to the wet second fiber nonwoven fabric 27 coming into contact with the hand or arm can be reduced.
[0073]
  The ratio of the apertures 29 per unit area of the flaps 6 and 7 and the basis weight and fineness of the first fiber nonwoven fabric 26 are the same as those in FIG. The reasons for defining the ratio of the apertures 29, the basis weight of the nonwoven fabric 26, and the fineness are the same as those in FIG. The value of qmax when the flaps 6 and 7 formed from the composite sheet 31 are wet is 0.25 or less, and the value of qmax when the flaps 6 and 7 are dried is 0.15 or less. The method of measuring qmax is the same as that of the article 1D in FIG.
[0074]
  In the article 1D, the ratio of the opening portions 32 per unit area of the flaps 6 and 7 is in the range of 2 to 40%, preferably in the range of 5 to 20%. If the ratio of the open part 32 is less than 2%, water vapor generated when the sweat is dried cannot be released from the open part 32 to the outside of the article 1D, and the second fiber nonwoven fabric 27 that has absorbed the sweat is difficult to dry. Become. When the ratio of the open part 32 exceeds 40%, the exposed area from the open part 32 of the second fiber nonwoven fabric 27 increases, and the second fiber nonwoven fabric 27 that has absorbed and wetted the sweat comes into contact with the hands and arms. And uncomfortable. Since the value of qmax when the flaps 6 and 7 are wet is 0.25 or less, the article 1D does not give a cold feeling to the wearer even if the wet flaps 6 and 7 touch the skin. Absent.
[0075]
  For the surface sheet 8, any of a hydrophilic fiber nonwoven fabric, a hydrophobic fiber nonwoven fabric having a large number of apertures, and a plastic film having a large number of fine apertures can be used. The back sheet 9 may be any one of a hydrophobic fiber nonwoven fabric, a breathable liquid-impervious plastic film, a composite sheet laminated with hydrophobic fiber nonwoven fabrics, and a composite sheet laminated with a hydrophobic fiber nonwoven fabric and a breathable liquid-impervious plastic film. Can be used.
[0076]
  The hydrophilic fiber nonwoven fabric can be made from any one of synthetic fibers, semi-synthetic fibers and regenerated fibers that have been subjected to hydrophilic treatment, or composite fibers obtained by mixing these fibers. Although there is no limitation in particular in a synthetic fiber, a polyester type, a polyacrylonitrile type, a polyvinyl chloride type, a polyethylene type, a polypropylene type, and a polystyrene type can be used. As the synthetic fiber, a core-sheath type composite fiber, a parallel type composite fiber, an atypical hollow fiber, a microporous fiber, and a bonded type composite fiber can also be used. When the hydrophilic fiber nonwoven fabric is heat-fusible, the fibers forming the nonwoven fabric need to contain synthetic fibers.
[0077]
  The heat-fusible and hydrophobic fiber nonwoven fabric and the hydrophobic fiber nonwoven fabric can be made from synthetic fibers. The heat-fusible and hydrophobic fiber nonwoven fabric or the hydrophobic fiber nonwoven fabric may contain semi-synthetic fibers or regenerated fibers that have been subjected to a water-repellent treatment.
[0078]
  As the non-woven fabric, those manufactured by each method of spunlace, needle punch, melt blown, thermal bond, spun pond, and chemical bond can be used.
[0079]
  The heat-fusible and hydrophilic fiber nonwoven fabric, the hydrophilic fiber nonwoven fabric, the heat-fusible and hydrophobic fiber nonwoven fabric, and the hydrophobic fiber nonwoven fabric may have elastic stretchability. As an elastic fiber nonwoven fabric, what was manufactured by each manufacturing method of melt blown and a spun bond can be used. As the constituent fiber of the stretchable nonwoven fabric, a stretchable fiber obtained by melting and spinning a thermoplastic elastomer resin can be used.
[0080]
  The core 10 is a mixture of fluff pulp and superabsorbent polymer particles, or a mixture of fluff pulp, superabsorbent polymer particles and thermoplastic synthetic resin fibers, and is compressed to a required thickness. The core 10 is preferably encased in a liquid-permeable sheet such as a tissue paper or a hydrophilic fiber nonwoven fabric in order to prevent the core 10 from losing its shape or dropping off the polymer particles. As the polymer particles, starch-based, cellulose-based or synthetic polymer-based particles can be used.
[0081]
  Adherence between front and back sheets 8, 9; Adhesion between front and back sheets 8, 9 and composite sheets 14, 24, 28, 31; Adhesion of core 10 to front and back sheets 8, 9; For fixing the elastic members 11 and 19 to the leakage sheet 18 and the composite sheets 28 and 31, and fixing the leak-proof sheet 18 to the top sheet 8 and the composite sheets 14, 24, 28 and 31, adhesive or hot press bonding or Ultrasonic bonding technology can be used.
[0082]
  It is preferable to use a hot melt adhesive as the adhesive. In addition to the hot melt adhesive, any of an acrylic adhesive and a rubber adhesive can be used as the adhesive. The adhesive is applied to the front and back sheets 8, 9 and the composite sheets 14, 24, 28, 31 and the leak-proof sheet 18 in any form of spiral, zigzag, dot, or stripe. Is preferred. When the adhesive is applied to the front and back sheets 8, 9 and the composite sheets 14, 24, 28, 31 and the leak-proof sheet 18 in such a manner, the sheets 8, 9, 14, 24, 28, 31, and 18 are intermittently connected. It is fixed to.
[0083]
  The present invention can be implemented not only in the open-type wearing articles 1A, 1B, 1C, 1D for connecting the front and rear waist areas at the time of wearing but also in the pants-type wearing articles in which the front and back waist areas are connected in advance. .
[0084]
【The invention's effect】
  According to the disposable wearing article according to the present invention, at least one of the end flap and the side flap includes a heat-fusible and hydrophobic first fiber nonwoven fabric and a heat-fusible and hydrophilic second fiber nonwoven fabric. The composite sheet is formed by superimposing, and the first and second fiber nonwoven fabrics are fixed to each other through a large number of heat-sealing portions, and the fiber density of the composite sheet in the heat-sealing portion is the remaining amount excluding the heat-sealing portion. Since it is higher than that of the region, the capillary action acts strongly at the heat fusion part. Therefore, in this article, when it is worn, the sweat of the wearer is smoothly transferred from the first fiber nonwoven fabric to the hydrophilic second fiber nonwoven fabric by capillary action, and the second fiber nonwoven fabric quickly absorbs the sweat. be able to. Since the second fiber nonwoven fabric located on the non-skin contact side is exposed to the outside of the article when the article is worn, water vapor generated when the sweat evaporates even if the flap absorbs the sweat. It can escape from the second fiber nonwoven fabric to the outside of the article. In this article, the second fiber nonwoven fabric that has absorbed sweat is easy to dry and the sweat easily evaporates from the flap, so that the flap does not stick to the skin and there is no discomfort to the worn article.
[0085]
  At least one of the end flaps and side flapsOpening partIn a wearing article formed from a composite sheet in which a hydrophobic first fiber nonwoven fabric and a hydrophilic second fiber nonwoven fabric are bonded to each other,Opening part of the first fiber nonwoven fabricSince the second fiber nonwoven fabric is exposed on the skin contact side, the sweat of the wearerOpening part of the first fiber nonwoven fabricTo the hydrophilic second fiber nonwoven fabric. Since the second fiber nonwoven fabric located on the non-skin contact side is exposed to the outside of the article when the article is worn, water vapor generated when the sweat evaporates even if the flap absorbs the sweat. It can escape from the second fiber nonwoven fabric to the outside of the article. In this article, the second fiber nonwoven fabric that has absorbed sweat is easy to dry and the sweat easily evaporates from the flap, so that the flap does not stick to the skin and there is no discomfort to the worn article.
[0086]
  Many outside the second fiber nonwoven fabricOpening partIn a wearing article to which a hydrophobic third fiber nonwoven fabric havingOpening part of the third fiber nonwoven fabricSince the second fiber nonwoven fabric is exposed on the non-skin contact side, water vapor generated when the sweat evaporates can escape from the second fiber nonwoven fabric to the outside of the article even if the flap absorbs the sweat. This article can reduce the contact area of the wet second fiber nonwoven fabric on the hands and arms by absorbing sweat and reduce the discomfort caused by the wet second fiber nonwoven fabric contacting the hands and arms. Can do.
[Brief description of the drawings]
FIG. 1 is a partially broken perspective view of a wearing article shown as an example.
FIG. 2 is an end view taken along line II-II in FIG.
FIG. 3 is an end view taken along line III-III in FIG.
FIG. 4 is a partially broken perspective view of a wearing article shown as another example.
FIG. 5 is an end view taken along line VV in FIG. 4;
FIG. 6 is a partially cutaway perspective view of a wearing article shown as another example.
7 is an end view taken along line VII-VII in FIG.
8 is an end view taken along line VIII-VIII in FIG. 6;
FIG. 9 is a partially broken perspective view of a wearing article shown as another example.
10 is an end view taken along line XX in FIG. 9;
11 is an end view taken along line XI-XI in FIG. 9;
[Explanation of symbols]
  1A disposable wearing article
  1B Disposable wearing articles
  1C disposable wearing articles
  1D disposable wearing articles
  2 Front waist area
  3 Inseam
  4 Rear waist area
  5 Liquid absorption zone
  6 End flap
  7 Side flaps
  8 Liquid-permeable surface sheet
  9 Impervious back sheet
10 Liquid absorbing core
12 1st fiber nonwoven fabric
13 Second fiber nonwoven fabric
14 Composite sheet
16 Heat fusion part
17 Remaining parts
23 Third fiber nonwoven fabric
24 Composite sheet
25Opening part
26 1st fiber nonwoven fabric
27 Second fiber nonwoven fabric
28 Composite sheet
29Opening part
30 Third fiber nonwoven fabric
31 Composite sheet
32Opening part

Claims (7)

A liquid absorption zone having a front waistline region and a back waistline region in the longitudinal direction, and a crotch region located between the waist region, and extending between the front and back waist regions; A disposable wearing article having an end flap extending laterally located at the side and a side flap extending laterally outwardly of the absorbent zone and extending longitudinally;
The liquid absorption zone is formed from a liquid-permeable surface sheet located on the skin contact side, a liquid-impermeable back sheet located on the skin non-contact side, and a liquid-absorbent core interposed between these sheets,
At least one of the end flap and the side flap is a heat-sealable and hydrophobic first fiber nonwoven fabric located on the skin contact side and a heat-seal and hydrophilic property located on the skin non-contact side Of the second fiber nonwoven fabric and a hydrophobic third fiber nonwoven fabric positioned outside the second fiber nonwoven fabric, and the first and second fiber nonwoven fabrics are formed from the skin contact side. A number of heat-sealing portions that are recessed in at least the first thickness direction of the first thickness direction toward the skin non-contact side and the second thickness direction from the skin non-contact side toward the skin contact side. Fixed through
In at least a part of the heat fusion part, the fiber form of the first fiber nonwoven fabric and the second fiber nonwoven fabric is maintained, and the fiber density of the composite sheet is the remainder of the composite sheet excluding the heat fusion part. rather than higher than that of the site,
The third fiber nonwoven fabric has a large number of apertures penetrating in the thickness direction, and the second fiber nonwoven fabric is exposed to the skin non-contact side from the aperture portions. Wearing articles. The composite sheet in the heat-sealed portion is formed such that the heat-sealed portions are distributed and distributed substantially uniformly in the flap, and the ratio of the heat-fused portion per unit area of the flap is in the range of 2 to 40%. The wearing article according to claim 1, wherein the fiber density is in the range of 0.4 to 0.8 g / cm ³ . A liquid absorption zone having a front waistline region and a back waistline region in the longitudinal direction, and a crotch region located between the waist region, and extending between the front and back waist regions; A disposable wearing article having an end flap extending laterally located at the side and a side flap extending laterally outwardly of the absorbent zone and extending longitudinally;
The liquid absorption zone is formed from a liquid-permeable surface sheet located on the skin contact side, a liquid-impermeable back sheet located on the skin non-contact side, and a liquid-absorbent core interposed between these sheets,
At least one of the end flap and the side flap is a hydrophobic first fiber nonwoven fabric located on the skin contact side, a hydrophilic second fiber nonwoven fabric located on the skin non-contact side, and the second fiber. The second fiber nonwoven fabric is formed from a composite sheet to which a hydrophobic third fiber nonwoven fabric positioned outside the nonwoven fabric is fixed, and the first fiber nonwoven fabric has a large number of apertures penetrating in the thickness direction. Is exposed to the skin contact side from the opening portion of the first fiber nonwoven fabric , the third fiber nonwoven fabric has a large number of aperture portions penetrating in the thickness direction, and the second fiber nonwoven fabric is The said wearing article exposed to the skin non-contact side from the opening part of a 3rd fiber nonwoven fabric . The apertures of the first fiber nonwoven fabric are distributed and distributed substantially uniformly in the flap, and the ratio of the apertures of the first fiber nonwoven fabric per unit area of the flap is in the range of 2 to 40%. The wearing article according to claim 3. The aperture portions of the third fiber nonwoven fabric are scattered and distributed substantially uniformly in the flap, and the ratio of the aperture portions of the third fiber nonwoven fabric per unit area of the flap is in the range of 2 to 40%. The wearing article according to any one of claims 1 to 4 . The wearing article according to any one of claims 1 to 5 , wherein the basis weight of the first fiber nonwoven fabric is 30 g / m ² or less, and the fineness of the first fiber nonwoven fabric is 4 dtex or less. The wearing article according to any one of claims 1 to 6 , wherein a value of qmax when the flap formed from the composite sheet is wet is 0.25 or less.

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