CN1193724C - Absorbent article with open pore film - Google Patents

Absorbent article with open pore film Download PDF

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Publication number
CN1193724C
CN1193724C CNB011436832A CN01143683A CN1193724C CN 1193724 C CN1193724 C CN 1193724C CN B011436832 A CNB011436832 A CN B011436832A CN 01143683 A CN01143683 A CN 01143683A CN 1193724 C CN1193724 C CN 1193724C
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China
Prior art keywords
mentioned
apertured film
film
hole
block copolymer
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Expired - Fee Related
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CNB011436832A
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Chinese (zh)
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CN1353974A (en
Inventor
水谷聪
田村竜也
野田祐树
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Unicharm Corp
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Unicharm Corp
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Publication of CN1353974A publication Critical patent/CN1353974A/en
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Publication of CN1193724C publication Critical patent/CN1193724C/en
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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
    • A61F13/51—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vascular Medicine (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Laminated Bodies (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

To solve such conventional problems that an open hole is collapsed and a rib part between open holes is cut into pieces because the strength of an open hole film formed by drawing a film formed by mixing a filler with a resin and forming a cell allowing steam to permeate inside the film and the open hole is reduced due to the cell. The open hole film 10 having many open holes 11 and a liquid leading tube 12 is used as the surface sheet of an absorbing article. This open hole sheet 10 is formed by a resin material in which a polyester which becomes a hard component, a block copolymer with a polyester or a polyether which becomes a soft component, and an olefinic resin are mixed. The block copolymer has steam permeation property and excellent expansibility and durability. Furthermore, adhesive property of the surface can be suppressed because it contains the olefinic resin.

Description

Absorbent commodity with apertured film
Technical field
The present invention relates to sanitary towel, disposable diaper, get the absorbent commodity of urinating pad, panty-liners etc., The present invention be more particularly directed to be subjected to the liquid side to be provided with the absorbent commodity of apertured film.
Background technology
The liquid side outside parts that are subjected to of sanitary towel or disposable diaper have the type that adopts apertured film.
The manufacture process of this apertured film is such, the resin molding that will have olefin-based etc. feeds to the surface to have and is permitted porous screen drum, make resin softening by hot blast, and pass through the suction pressure of the inside of screen drum, on above-mentioned resin molding, form and the corresponding hole of above-mentioned holes of drum, make simultaneously the hole around side-prominent towards film, form catheter.
In above-mentioned apertured film, make film itself have the steam trafficability characteristic, so that its surface is difficult to be detained steam.This method is such, the filler that in resin molding, mixes inorganic fine particle etc. in advance, along single shaft or biaxially oriented this resin molding is stretched, by this drawing process, in film inside, with the boundary member between resin and the above-mentioned filler from, and, make film produce many small chambeies (slight void) at the inner cracking that produces of film.By above-mentioned small chamber is set, make film have the steam trafficability characteristic.
But because above-mentioned apertured film is at the catheter as the peripheral part in hole, or the flank between hole and hole forms space or crack as above-mentioned small chamber, so the reduction of the intensity of above-mentioned catheter or above-mentioned flank.Thus, with the contact pressure of wearer's skin or with the effect of the frictional force of skin under, above-mentioned catheter is damaged by pressure, the hole is that resin stops up, the permeability of the liquid of apertured film reduces.Perhaps, if above-mentioned flank is disconnected, the broken part by film between the hole connects, and then is absorbed in the easy reverse reflux of liquid in the absorbent core to the surface of apertured film.
In addition, in the process in front, stretch to mixing Packed resin molding, form above-mentioned small chamber, after process in, by above-mentioned screen drum, in resin molding, form the hole, but because the resin film strength that feeds to screen drum is because of having filler and small chamber reduces, so be difficult to form the hole of stable shape.Thus, also have following danger, the area difference in promptly corresponding hole, or since the effect of the suction pressure at screen drum place the flank between the Kong Yukong is disconnected.
Also have, in order to improve the film strength that is formed with above-mentioned small chamber, people also consider to make the paper weight of film to increase, if but the paper weight (level ground amount) of film is increased, then be difficult to suction pressure by above-mentioned screen drum, form the hole, this reason equally is difficult to carry out the stable formation in hole easily.
Summary of the invention
The present invention proposes in order to solve above-mentioned existing problem, the object of the present invention is to provide a kind of absorbent commodity, and this absorbent commodity has apertured film, the resin formation of this apertured film and steam trafficability characteristic of having excellent moldability good by durability.
The present invention relates to a kind of absorbent commodity, wherein cover liquid absorption layer the zone be provided with by the fluidity surface in synthetic resin film, to form permitted porous apertured film, it is characterized in that: above-mentioned apertured film comprises the block copolymer and the olefin-based resin of soft segment composition and hard block composition, above-mentioned soft segment composition is polyester and/or polyethers, and above-mentioned hard block composition is a polyester; In above-mentioned apertured film, according to the quality meter, the content of above-mentioned block copolymer is in 5～70% scope; The temperature zone that does not form the hole in the above-mentioned apertured film, that meet JIS Z0208 regulation is that 40 ℃, relative humidity are that vapour transmission degree under 60% the condition is at 500～8000g/m 2In 24 hours the scope, according to the quality meter, relative 5～70% block copolymer, the content of olefin-based resin is in 30～95% scope.
Perhaps, the present invention relates to a kind of absorbent commodity, extending longitudinally in the formation of the both sides in the zone that covers liquid absorption layer therein also can be towards the wall portion that erected by the fluidity face side, it is characterized in that: the fluidity surface that is subjected at least in the above-mentioned wall portion is formed by apertured film, in this apertured film, on synthetic resin film, form many holes; Above-mentioned apertured film comprises the block copolymer and the olefin-based resin of soft segment composition and hard block composition, and above-mentioned soft segment composition is polyester and/or polyethers, and above-mentioned hard block composition is a polyester; In above-mentioned apertured film, according to the quality meter, the content of above-mentioned block copolymer is in 5～70% scope; The temperature zone that does not form the hole in the above-mentioned apertured film, that meet JIS Z0208 regulation is that 40 ℃, relative humidity are that vapour transmission degree under 60% the condition is at 500～8000g/m 2In 24 hours the scope, according to the quality meter, relative 5～70% block copolymer, the content of olefin-based resin is in 30～95% scope.
In addition, around the hole of above-mentioned apertured film, form catheter.
In absorbent commodity of the present invention, the main body of the outside at least of the outside in the zone of covering liquid absorption layer and/or leakproof wall is by the block copolymer of soft segment part and hard block part, and the olefin-based resin formation.
Have poisture-penetrability owing to form the polyester of above-mentioned hard block composition and the polyethers of formation soft segment composition and/or the block copolymer of polyester, particularly the soft segment composition is amorphous, so its poisture-penetrability is good.Owing to adopt above-mentioned block copolymer, so not as before, take to comprise mean diameter in the scope of 1～30 μ m filler and it stretched form the mode in small chamber in the film, just can see through steam in the foraminous zone of tool not, can prevent that steam is stranded on the outside.
Owing to do not have filler or small chamber, so film strength and durability are higher, such as, can guarantee the intensity of the catheter on every side in hole.Formability when in addition, forming hole and catheter is also good.
In addition, because the block copolymer of hard block composition and soft segment composition is rich in retractility, apertured film can be followed the motion of wearer's skin, to the stimulation minimizing of skin.In addition, owing to comprise polyester based resin, so can suppress the stickness sense of the outside of apertured film.
Description of drawings
Fig. 1 is the cutaway view of absorbent commodity of the present invention;
Fig. 2 is the perspective view with the local broken section that amplifies of apertured film of the present invention.
The specific embodiment
Fig. 1 is a cutaway view example, by with the intermediary cut-out line that will vertically be divided into 2 parts sanitary towel being cut off as absorbent commodity of the present invention.
Sanitary towel 1 shown in Figure 1 is provided with absorbent core 3 at the zone line of the end face of the internal surface layer 2 of opaque liquid, and the outside of this absorbent core 3 is covered by outer coversheet 4.The left and right sides portion that is subjected to the liquid side surface in sanitary towel 1 is provided with side layer 5,5.This side layer 5,5 engages with above-mentioned internal surface layer 2 in left and right sides portion, in addition about absorbent core 3 outside lateral buckling and form leakproof wall 6,6.In addition, in order to form above-mentioned leakproof wall 6,6, the above-mentioned side layer 5,5 of doubling engages with the end face of the left and right sides portion of above-mentioned outer coversheet 4.
Longitudinally the elastomeric element 7 of (Y direction) extension engages with above-mentioned leakproof wall 6,6 respectively.Contractility sanitary towel 1 by this elastomeric element 7 is towards vertically being curved shape, and consequently, leakproof wall 6 can erect from the liquid side surface that is subjected to of sanitary towel 1.
In sanitary towel shown in Figure 11, the zone that is provided with the width W 1 of above-mentioned absorbent core 3 is the absorption region, with given size be positioned at above-mentioned absorbent core 3 about the zone of width W 2 of inboard of two edge portions be zone line, the outside of two edge portions about above-mentioned absorbent core 3, the zone of the width W 3 of two edge portions is non-absorption region to about the outer coversheet 4.
In addition, the part that forms leakproof wall 6 at least in the outer coversheet 4 of above-mentioned sanitary towel 1 or the above-mentioned side layer 5 is formed by the apertured film 10 that will be described below.Perhaps, form the both sides of outer coversheet 4 and above-mentioned leakproof wall 6 these two parts by apertured film 10 formation.
In addition, above-mentioned internal surface layer 2 by the resin molding of aeration, hydrophobic non-woven fabrics, spunbond, the point preferably handled through water proofing property glue, melt and spray, the non-woven fabrics of heat bonding etc. forms.In addition, above-mentioned absorbent core 3 is formed by the absorbent material of paper pulp etc. and high-absorbable resin etc.Also have, in the occasion that is not formed by above-mentioned apertured film 10, above-mentioned side layer 5 is formed by the non-woven fabrics of hydrophobic non-woven fabrics, preferably process water proofing property processing.
Fig. 2 is for representing the perspective view of the partly cut-away of above-mentioned apertured film 10 in the amplification mode.
In above-mentioned apertured film 10, form many holes 11.This hole 11 forms in the mode of arranging regularly or at random, in the hole 11 around form towards the outstanding catheter 12 of the bottom surface of film direction.In addition, the opening 12a of above-mentioned catheter 12 is towards absorbent core 3 one sides.Above-mentioned hole 11 both can only be formed at the absorption region of the width W 1 that covers absorbent core 3, also can be only forms hole 11 in the part of the width W 2 of the zone line that covers absorbent core 3.Perhaps, also can on the non-absorption region of the absorption region of above-mentioned width W 1 and width W 3, form hole 11.
If the height of the film inward-outward direction of above-mentioned catheter 12 in this scope, prevents to be absorbed in the reverse reflux of liquid outside film in the absorbent core 3 easily in the scope of 0.3～1.0mm.In addition, the area in each hole 11 is at 0.125～1.766mm 2Scope in, the occupied area rate in the hole 11 in the apertured film 10 is preferably in 25～70% the scope, particularly is preferably in 40～65% the scope.If the area in each hole 11 is in above-mentioned scope, and above-mentioned occupied area rate is in above-mentioned scope, then make the liquid that offers the film outside see through absorbent core 3 easily, in addition, prevent to be absorbed in the reverse reflux of liquid outside film in the absorbent core 3 easily.
Above-mentioned apertured film 10 is formed by resin material, is mixed with the block copolymer and the olefin-based resin of soft segment composition and hard block composition in this resin material.Owing to adopt above-mentioned block copolymer, can obtain vapour transmission property by the non-open area that does not form hole 11 in apertured film 10.That is, the poisture-penetrability of the block copolymer of soft segment composition and hard block composition is higher, particularly because above-mentioned soft segment composition is amorphous, so moisture permeability increases.
Preferred examples is the block copolymer polyester of soft segment composition and hard block composition, and above-mentioned soft segment composition comprises at least 1 person in polyester and the polyethers.In addition, above-mentioned hard block composition is a polyester.
The glass transition temperature of above-mentioned soft segment composition is less than 20 ℃, and the soft segment composition is the copolymer of aliphatic polyester, polyethers or aliphatic polyester and polyethers etc.
Above-mentioned aliphatic polyester is such as the polyester that is aliphatic dicarboxylic acid and aliphatic glycol, above-mentioned aliphatic dicarboxylic acid is the carboxylic acid more than at least one of selecting from succinic acid, adipic acid, Azelaic Acid, decanedioic acid, dodecandioic acid (De デ カ Application ジ acid) etc., the multivalence alcohol a kind or more of above-mentioned aliphatic glycol for selecting from ethylene glycol, propylene glycol, butanediol etc.Above-mentioned polyethers is such as being poly alkylene glycol, and it is from Polyethylene Glycol, select in poly-dipropylene glycol, the polytetramethylene glycol etc. more than a kind.
The polyester that forms above-mentioned hard block composition is a glass transition point greater than 50 ℃ polyester.The hard block composition is preferably among 1 person in carboxylic acid and the glycol comprises aromatic ring at least, such as, be the polyester of aromatic dicarboxylic acid and aliphatic glycol.
Above-mentioned aromatic dicarboxylic acid is from phthalic acid, p-phthalic acid, M-phthalic acid, 2,6-naphthalene dicarboxylic acids, 2,7-naphthalene dicarboxylic acids, 1,5-naphthalene dicarboxylic acids, hexichol-4,4 '-naphthalene dicarboxylic acids, 3,3 '-dimethyl hexichol-4,4 '-dicarboxylic acids, 4,4 '-diphenyl sulphone (DPS) dicarboxylic acids, 4, the carboxylic acid that at least one of selecting in 4 '-biphenoxyl ethane dicarboxylic acids etc. is above, the multivalence alcohol more than a kind that above-mentioned aliphatic glycol is selected from ethylene glycol, propylene glycol, butanediol etc.
In addition, the olefin-based resin is from ethylene, composition of selecting in the polymer of propylene or the copolymer or their mixture.Such as, above-mentioned olefin-based resin is LDPE (low density polyethylene (LDPE)), LLDPE (ultra-low density polyethylene), HDPE (high density polyethylene (HDPE)) or their mixture.
With hot melting way the resin that wherein is mixed with above-mentioned block copolymer and olefin-based resin is pushed, make it form lamellar by die head, as required, along single shaft direction stretching or membranaceous along biaxially oriented stretching formation.This film is fed to screen drum.On this screen drum, be formed with hole 11 the corresponding shaped hole of pattern is set.By hot blast the film that supplies to around the screen drum is heated, in addition, film is drawn in the shaped hole by suction pressure from screen drum inside, as shown in Figure 2, formation hole 1 and catheter 12.
Owing to adopt the block copolymer of above-mentioned soft segment composition and hard block composition, so can have above-mentioned vapour transmission property.In addition, because above-mentioned block copolymer makes the soft segment composition independent macromolecule different with the hard block composition realize copolymerization, is rich in retractility so comprise the film of this block copolymer, with the effect of the friction of the pressure of wearer's skin or skin under, film follows softness and moves, consequently, can reduce zest to skin.In addition, the reverse side that is rich in retractility in the above-mentioned block copolymer, the outside has cementability.So by in the manner described above, mixed olefins is a resin, cementability that then can inhibition itself.
For the cementability of the outside that suppresses apertured film 10, and the vapour transmission property that does not hinder block copolymer, according to the quality meter, relative 5～70% block copolymer, the content of olefin-based resin is in 30～95% scope.
Owing to form such mixing match,, can reduce zest to wearer's skin so can suppress the cementability of the outside of apertured film 10 own.In addition, by forming above-mentioned mixing match, do not hinder the vapour transmission property of block copolymer, the vapour transmission degree that meets JISZ0208 regulation in the non-open area that does not form hole 11 in the above-mentioned perforated layer 10 is that 40 ℃, relative humidity are can be at 500～8000g/m under 60% the condition in temperature 2In/24 hours the scope.In addition, above-mentioned vapour transmission degree particularly is preferably in 1000～8000g/m 2In/24 hours the scope, especially particularly be preferably in 1500～5000g/m 2In/24 hours the scope.
Also have, for the shaping that makes film keeps stable, with above-mentioned screen drum hole 1 and catheter 12 are formed stable shape, then the melt flow of best above-mentioned block copolymer (melt flow rate) is in 2～30g/10 minute scope, particularly be preferably in 5～20g/10 minute the scope, especially be preferably in 5～15g/10 minute the scope.In addition, stable for the shaping that realizes stable and above-mentioned hole 11 and catheter 12 that film is shaped, preferably the density of olefin-based resin is at 0.88～0.930g/cm 3Scope in, melt flow (meltflow rate) is in 4～30g/10 minute scope.
Have, the weight per unit area (level ground amount) that comprises the film of above-mentioned block copolymer and above-mentioned olefin-based resin keeps stable scope as the shaping that makes hole 11 and catheter 12 again, and it is preferably in 15～40g/m 2Scope in, particularly be preferably in 20～30g/m 2Scope in.
Because above-mentioned apertured film 10 adopts block copolymer, do not obtain vapour transmission property so form the flank 18 in hole 11.So, need not as before, make it contain mean diameter and stretch in the inorganic filler of 1～30 μ m and to it and form the process in small chamber.That is, in this apertured film 10, do not comprise calcium carbonate, the inorganic filler of the mineral of barium sulfate, calcium phosphate, Talcum, silicon dioxide or activated carbon etc. or synthetic mineral etc.Owing to do not comprise inorganic filler, so the retractility of film is good, follow the motion of skin easily, in addition owing to do not comprise inorganic filler, so the durability of resin is higher, do not produce following situation, promptly since wearer's skin pressure or friction catheter 12 damage by pressure or hole 11 and hole 11 between rib 18 disrumpent feelings.
But apertured film 10 can comprise carries out the dye substance that white handles the hidden color that is absorbed in menstruation in the absorbent core 3 etc. to use.The mean diameter of this dye substance is in the scope of 0.1～0.5 μ m, and according to the quality meter, its content is in 2～7% scope.
In addition, in above-mentioned apertured film 10, according to the quality meter, can comprise as plasticizer that is used to promote flexibility or lubricant, content is 0.05～3% fatty acid ester, aliphatic alcohol, aliphatic amide, silicon and wax.
In addition, owing to form trickle jog, so can reduce contact area with skin in the outside of apertured film.Such as, be in the process of extrusion molding, when the resin that is in molten condition or semi-molten state being cooled off, form trickle jog on the surface of above-mentioned chill roll with chill roll.Perhaps, form trickle jog, thus, can stay trickle jog in the outside of apertured film 10 on the surface of the screen drum that forms hole 11.
Also have, apertured film of the present invention can be used as disposable diaper, gets the outer coversheet or the leakproof wall of urine pad, panty-liners etc.
Embodiment
By melt extruded machine and die head following hybrid resin is stretched, the acquisition weight per unit area is 25g/m 2Film, in this hybrid resin, according to the quality meter, the block copolymer of polyester is 40%, density is 0.915g/cm 3LLDPE be 60%.The vapour transmission degree of this film is 2214g/m 2/ 24 hours.
Send above-mentioned film to screen drum, with 350 ℃ hot blasts it is heated in advance, then, by suction pressure it is attracted, thereby obtain following apertured film, the area occupation ratio of its mesopore is 61%, the height of catheter is 0.42mm, and its shape is with shown in Figure 2 identical.
With the width of 1 inch (2.54cm), the fracture strength of vertical (MD) when with 100mm/ minute speed the apertured film of above-mentioned acquisition being carried out stretch-draw is 8.7N, and laterally the fracture strength of (MD) is 3.1N.Know in addition, close testing machine by KES wind, the compression ratio when applying the pressure of 4900Pa is 33%, has the durability of opposing and the contact pressure of skin.
Effect of the present invention
According to above-described mode, be used for the vapour transmission degree of the apertured film of absorbent commodity of the present invention Higher, the in addition bulk strength of film and durability, and retractility is higher. So, can form following absorption The property article, it follows the motion of skin, seldom skin is caused stimulation, in addition, is difficult to produce in film outside Give birth to steam and be detained, the hectic fever sense is very little. In addition, owing to comprise the olefin-based resin, can suppress gluing skin Connecing property.

Claims (8)

1. absorbent commodity, wherein cover liquid absorption layer the zone be provided with by the fluidity surface in synthetic resin film, to form permitted porous apertured film, it is characterized in that:
Above-mentioned apertured film comprises the block copolymer and the olefin-based resin of soft segment composition and hard block composition, and above-mentioned soft segment composition is polyester and/or polyethers, and above-mentioned hard block composition is a polyester;
In above-mentioned apertured film, according to the quality meter, the content of above-mentioned block copolymer is in 5～70% scope;
The temperature zone that does not form the hole in the above-mentioned apertured film, that meet JIS Z0208 regulation is that 40 ℃, relative humidity are that vapour transmission degree under 60% the condition is at 500～8000g/m 2In 24 hours the scope,
According to the quality meter, relative 5～70% block copolymer, the content of olefin-based resin is in 30～95% scope.
2. absorbent commodity according to claim 1 is characterized in that forming catheter around the hole of above-mentioned apertured film.
3. absorbent commodity according to claim 1 is characterized in that forming catheter around the hole of above-mentioned apertured film.
4. according to any one the described absorbent commodity in the claim 1～3, it is characterized in that above-mentioned apertured film does not comprise inorganic filler.
5. absorbent commodity forms in the both sides in the zone that covers liquid absorption layer therein and extends longitudinally and can it is characterized in that towards the wall portion that erected by the fluidity face side:
The fluidity surface that is subjected at least in the above-mentioned wall portion is formed by apertured film, in this apertured film, forms many holes on synthetic resin film;
Above-mentioned apertured film comprises the block copolymer and the olefin-based resin of soft segment composition and hard block composition, and above-mentioned soft segment composition is polyester and/or polyethers, and above-mentioned hard block composition is a polyester;
In above-mentioned apertured film, according to the quality meter, the content of above-mentioned block copolymer is in 5～70% scope;
The temperature zone that does not form the hole in the above-mentioned apertured film, that meet JIS Z0208 regulation is that 40 ℃, relative humidity are that vapour transmission degree under 60% the condition is at 500～8000g/m 2In 24 hours the scope,
According to the quality meter, relative 5～70% block copolymer, the content of olefin-based resin is in 30～95% scope.
6. absorbent commodity according to claim 5 is characterized in that forming catheter around the hole of above-mentioned apertured film.
7. absorbent commodity according to claim 5 is characterized in that forming catheter around the hole of above-mentioned apertured film.
8. according to any one the described absorbent commodity in the claim 5～7, it is characterized in that above-mentioned apertured film does not comprise inorganic filler.
CNB011436832A 2000-09-29 2001-09-29 Absorbent article with open pore film Expired - Fee Related CN1193724C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000299284A JP2002102285A (en) 2000-09-29 2000-09-29 Absorbing article having open hole film
JP299284/2000 2000-09-29

Publications (2)

Publication Number Publication Date
CN1353974A CN1353974A (en) 2002-06-19
CN1193724C true CN1193724C (en) 2005-03-23

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CNB011436832A Expired - Fee Related CN1193724C (en) 2000-09-29 2001-09-29 Absorbent article with open pore film

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KR (1) KR20020025821A (en)
CN (1) CN1193724C (en)
TW (1) TW502621U (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8158043B2 (en) 2009-02-06 2012-04-17 The Procter & Gamble Company Method for making an apertured web
JP7058110B2 (en) 2017-11-21 2022-04-21 スリーエム イノベイティブ プロパティズ カンパニー Elastic materials, manufacturing methods of elastic materials, elastic members, and clothing products

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KR20020025821A (en) 2002-04-04
TW502621U (en) 2002-09-11
JP2002102285A (en) 2002-04-09

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