CN103906489A - Absorptive article and manufacturing method therefor - Google Patents
Absorptive article and manufacturing method therefor Download PDFInfo
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- CN103906489A CN103906489A CN201280052192.XA CN201280052192A CN103906489A CN 103906489 A CN103906489 A CN 103906489A CN 201280052192 A CN201280052192 A CN 201280052192A CN 103906489 A CN103906489 A CN 103906489A
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- surface patch
- sheet
- absorbent commodity
- fiber
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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
- A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
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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
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53704—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having an inhibiting function on liquid propagation
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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
- A61F13/551—Packaging before or after use
- A61F13/5516—Packaging before or after use packaging of interlabial absorbing articles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F13/53708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
- A61F2013/53721—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction with capillary means
- A61F2013/53739—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction with capillary means with compressed points
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
The present invention addresses the problem of providing an absorptive article less likely to allow bodily fluid, which has been discharged from the wearer, to leak from the absorptive article. To solve the problem, this absorptive article (1) comprises: a liquid permeable front surface sheet (20); a liquid impermeable rear surface sheet (30) provided at a position facing the front surface sheet (20); an absorption body (40) provided between the front surface sheet (20) and the rear surface sheet (30); and a second sheet (50) provided between the front surface sheet (20) and the absorption body (40). Recesses (70) extending from the front surface sheet (20) to the inside of the second sheet (50) are formed by heating and compression in the thickness direction. The fibers of the front surface sheet (20) are thermo-plastically deformed in the recesses (70). The linear shape of the fibers of the front surface sheet (20) is maintained at the bottoms of the recesses (70). The front surface sheet (20) is joined to the second sheet by using an adhesive agent, and the second sheet (50) includes air-laid nonwoven fabric containing pulp.
Description
Technical field
The present invention relates to sanitary napkin, sanitary pad, absorbent commodity and the manufacture method thereof of pad, incontinence protective pad etc. for incontinence, particularly relates to thin absorptive article and manufacture method thereof.
Background technology
Can learn the thin absorptive article (for example, patent documentation 1) that forms multiple recesses from surface layer to absorbed layer as conventional art.This absorbent commodity, because the surface layer that forms recess is engaged with the fiber that forms absorbed layer, therefore, even in the situation that using slim absorbed layer, even if the recess forming from surface layer to absorbed layer is also difficult to fragmentation at moisture state.Thus, can easily make body fluid soak into absorbed layer from recess all the time.In addition, owing to can increasing the loft of surface layer, therefore, absorbent commodity softens with contacting of skin.
Prior art document
Patent documentation
Patent documentation 1 TOHKEMY 2003-291234 communique
Summary of the invention
The technical problem that invention will solve
Expect that a kind of body fluid that further easily makes soaks into absorber from the recess that is formed at absorbent commodity, and the body fluid of discharging from wearer is more difficult to the thin absorptive article spilling.
For the technical scheme of technical solution problem
The present invention, in order to solve above-mentioned problem, has adopted following structure.
, absorbent commodity of the present invention has the surface patch of liquid permeability; Be arranged on the back sheet of the opaque liquid of the position relative with surface patch; Be arranged on the absorber between surface patch and back sheet; And be arranged on second between surface patch and absorber, add hot compression at thickness direction, form from the multiple recesses till the inside of surface patch to the second slice, at recess, the fiber of surface patch is hot plastic deformation, and in the bottom of recess, the shape of the wire of the fiber of surface patch is maintained, surface patch uses bonding agent and the second chip bonding, and second comprises the air-laid nonwoven fabrics with paper pulp.
In addition, absorbent commodity of the present invention has the surface patch of liquid permeability, be arranged on the back sheet of the opaque liquid of the position relative with surface patch, be arranged on the absorber between surface patch and back sheet, and be arranged on second between surface patch and absorber, wherein, this absorbent commodity has body, form from the multiple recesses till the inside of surface patch to the second slice, width at the body of the width of the length direction central authorities of absorbent commodity is 10cm, on the plate that is inclined relative to horizontal 10 °, along the smooth face of this plate, the length direction that is configured to absorbent commodity becomes level, in the length direction of absorbent commodity and the position of width central authorities of surface patch, in the time that the injection rate of dividing with 96ml/ has been injected the artificial menses of 7ml, the artificial menses that are injected into surface patch can not wandered from the body of absorbent commodity, all absorbability article absorb.
In addition, the present invention is a kind of manufacture method of absorbent commodity, and this absorbent commodity possesses the surface patch of liquid permeability; Be arranged on the back sheet of the opaque liquid of the position relative with surface patch; Be arranged on the absorber between surface patch and back sheet; And being arranged on second between surface patch and absorber, the manufacture method of this absorbent commodity comprises: prepare second operation with sheet for making second; Second operation with the surperficial adhesive-applying of sheet; Prepare the operation of the surface patch sheet for making surface patch; At second applicator surface laminate surface sheet sheet with the bonding agent of sheet, make surface patch sheet and second operation by the composite sheet of sheet; With more than the temperature of low 50 DEG C of the melting point of the fiber at specific surface sheet and less than the temperature of the melting point of the fiber of surface patch, add hot compression at thickness direction, form from surface patch sheet to the second operation with the multiple recesses till the inside of sheet in composite sheet.
Invention effect
According to the present invention, can provide a kind of body fluid of discharging from wearer to be more difficult to the particularly thin absorptive article of absorbent commodity spilling.
Brief description of the drawings
Fig. 1 is the top view of the absorbent commodity of one embodiment of the present invention.
Fig. 2 (a) is the A-A cutaway view of Fig. 1, and Fig. 2 (b) is the cutaway view that has amplified the part of the recess of Fig. 2 (a).
Fig. 3 is the figure of the manufacture method of the absorbent commodity for one embodiment of the present invention is described.
Fig. 4 is the microphotograph that represents near the cross section recess of the absorbent commodity made from the manufacture method of the absorbent commodity of one embodiment of the present invention.
Fig. 5 is the figure of test method of absorption test when illustrating.
Fig. 6 is the figure of test method of absorption test when illustrating.
Detailed description of the invention
Below, with reference to the accompanying drawings of the absorbent commodity of one embodiment of the present invention.The absorbent commodity of one embodiment of the present invention is slim sanitary napkin.At this, slim sanitary napkin for example refers to, the sanitary napkin of the thickness below 4mm.In addition, thin absorptive article for example refers to, the absorbent commodity of the thickness below 4mm.
Fig. 1 and Fig. 2 are the figure of the absorbent commodity for one embodiment of the present invention is described.Fig. 1 is the top view of the absorbent commodity of one embodiment of the present invention.Fig. 2 (a) is the A-A cutaway view of Fig. 1.Fig. 2 (b) is the cutaway view that has amplified the part of the recess of Fig. 2 (a).The absorbent commodity 1 of one embodiment of the present invention has: the surface patch 20 of liquid permeability; Be located at the back sheet 30 of the opaque liquid of the position relative with surface patch 20; Be located at the absorber 40 between surface patch 20 and back sheet 30; Be located at second 50 between surface patch 20 and absorber 40; With lateral plate 60, the both sides that it is located at the width of surface patch 20, there is the region 61 overlapping with surface patch 20.Surface patch 20 uses bonding agent, engages with second 50.
Absorbent commodity 1 has: body 14; With the outstanding a pair of tab portion 11 of length direction mediad width from body 14.Boundary between body 14, tab portion 11 is by the side 15 of the width side of the distolateral absorbent commodity 1 of the length direction in a side with respect to tab portion 11 and the side 16 of the width side of the distolateral absorbent commodity 1 of the length direction in the opposing party links with respect to tab portion 11 line 17.Therefore, the width of the body 14 of the length direction central authorities of absorbent commodity 1 is the distance between a pair of line 17.In addition, in the situation that absorbent commodity does not have tab portion, absorbent commodity entirety becomes body.
The face of the opposition side of the face relative with surface patch 20 of sheet 30 is provided with bonding part 80 overleaf.In Fig. 1, the width of absorbent commodity 1 is x direction of principal axis, and length direction is y direction of principal axis.In Fig. 1, the in-plane of absorbent commodity 1 refers to the direction of the planar extension being formed by x axle and y axle.
At absorbent commodity 1, by needle roller embossing (ピ Application エ Application ボ ス) processing, add hot compression at thickness direction, form from multiple recesses 70 of the inside of 20 to second 50 of surface patch.At this, needle roller embossing processing refers to the embossing processing that uses the needle roller that is arranged at roller to carry out.The inner face of recess 70 is covered by surface patch 20.In addition, absorbent commodity 1 is by adding hot compression at thickness direction, has surface patch 20, second slice 50 and back sheet 30 are engaged to the sealing 12 forming in length direction both sides.
Compound heat fusing fiber refer to by the resin combination of the resin of low melting point and high melting point the heat fusing fiber made.Compound heat fusing fiber has composite fibre, the core-sheath-type composite fibre of parallel type.The composite fibre of parallel type has and has combined polyethylene and polyacrylic fiber, has combined the fiber of low melting point propylene and propylene etc.Core-sheath-type composite fibre has sheath and uses polyethylene, core uses polyacrylic fiber, sheath uses polyethylene, core to use the fiber of polyester, sheath uses low melting point polyester, core to use fiber, the sheath of polyester to use low melting point polypropylene, core to use polyacrylic fiber, sheath to use polypropylene, core to use the fiber of polyester, and sheath uses nylon-6, core to use the fiber of nylon 66.
Be used for the preferred thermoplasticity fiber of fiber of the non-woven fabrics of surface patch 20.Thus, even be also maintained when the distortion surface patch 20 of the fiber of the surface patch 20 producing in the time that absorbent commodity 1 forms recess becomes moisture state, so become moisture state and be also difficult to fragmentation even if can make to be formed at the recess 70 of absorbent commodity 1.
Can make the rigidity of the part of the wearer's who is expelled to surface patch 20 diffusion of body fluids or the near surface of raising absorbent commodity 1 for second 50.Second preferably uses air-laid nonwoven fabrics.Air-laid nonwoven fabrics refers to the non-woven fabrics that comprises paper pulp by using air lay method to make.In addition, air lay method generally refer under drying regime by paper pulp machinery untie, by cellulose fibre ultimate fibre, form continuously after fleece (paper pulp fiber pad), use binding agent, by affixed method each other between the fiber in fleece.
Binding agent for the air-laid nonwoven fabrics of second 50 also can use heat fusing fiber.As the binding agent of air-laid nonwoven fabrics, for example, can use the binding agent identical with the heat fusing fiber of non-woven fabrics that can be used in surface patch 20.Heat fusing fiber has thermoplasticity, so, even be also maintained when the distortion surface patch 20 of the fiber of second 50 that produces in the time that absorbent commodity 1 forms recess becomes moisture state.Therefore, become moisture state and be also difficult to fragmentation even if can make to be formed at the recess 70 of absorbent commodity 1.In addition, as the binding agent of air-laid nonwoven fabrics that is used in second 50, can use the both sides of heat fusing fiber and Powdered, netted, the film like except heat fusing fiber or fibrous binding agent.
Generally speaking, because the rigidity of the rigidity specific surface sheet 20 of air-laid nonwoven fabrics is high, therefore, be located between surface patch 20 and absorber 40 by second 50 of will comprise air-laid nonwoven fabrics, the rigidity of the part of the near surface of absorbent commodity uprises.Thus, because of walking or the action of health and the variation of the postures such as accumbency that lie low such as sit down, absorbent commodity 1 is out of shape, can prevent from being subject to the impact that this absorbent commodity 1 is out of shape for second 50, can suppress second 50 from surface patch 20 till the part at the end of the recess 70 that the inside of second 50 forms peel off from absorber 40.
In addition, because air-laid nonwoven fabrics is hydrophilic, therefore, wearer's body fluid absorbs fast, the body fluid of discharging wearer before in-plane diffusion, can absorb the body fluid that wearer discharges from surface patch 20 in the surface of surface patch 20 and/or surface patch 20, moves to absorber 40.Thus, even causing absorbent commodity 1 to tilt because of walking or the body action of sitting down etc. and the variation of the postures such as accumbency that lie low, in the situation that the speed that body fluid spreads to length direction or the width of absorbent commodity 1 accelerates, also can suppress body fluid and spill from absorbent commodity 1.
As the example of air-laid nonwoven fabrics that is used in second 50, there is the non-woven fabrics being formed by chemical pulp, heat fusing fiber and binding agent.Heat fusing fiber is for example, polyester, the sheath that core has a melting point of 250～260 DEG C has the poly core-sheath-type composite fibre of the melting point of 115～130 DEG C of melting points.Binding agent is that for example ethylene-vinyl acetate is binding agent.
From surface patch 20 till the recess 70 that the inside of second 50 arranges more than the temperature of low 50 DEG C of the melting point of the fiber of specific surface sheet 20 and less than the temperature of the melting point of the fiber of surface patch 20, add hot compression and be formed at thickness direction.The melting point of the fiber of surface patch 20 refers to the melting point of the binder fiber that the fiber of surface patch 20 is engaged with each other.For example, the composite fibre that is parallel type at the fiber of surface patch 20, the melting point of the fiber of surface patch 20 is melting points of the resin of the low melting point side of composite fibre, be core-sheath-type composite fibre at the fiber of surface patch 20, the melting point of surface patch 20 is melting points of the resin of the part of the sheath of core-sheath-type composite fibre.
Therefore, in the bottom 13 of recess 70, the fiber of surface patch 20 can not melt, and adding the shape of fiber of the surface patch 20 before hot compression, that is, the shape of the wire of the fiber of surface patch 20 is maintained.
Therefore, in the bottom 13 of recess 70, surface patch 20 not with second 50 heat fusing.At this, heat fusing refer to when by surface patch 20 and second 50 in the time that thickness direction adds hot compression, part or all of the heat fusing fiber in surface patch 20 melted, the heat fusing fiber in surface patch 20 engages with the fiber of second 50.For example, heat fusing fiber in surface patch 20 is core-sheath-type composite fibre, heat fusing refer to when by surface patch 20 and second 50 in the time that thickness direction adds hot compression, the sheath partial melting of heat fusing fiber, the heat fusing fiber in surface patch 20 engages with the fiber of second 50.
Therefore, in the bottom 13 of recess 70, surface patch 20 is not by filming, and the body fluid that is deposited in the wearer in recess 70 is promptly transferred to absorber 40 from the bottom 13 of recess 70.At this, filming refers to that the fiber of surface patch 20 melts, multiple fiber polymerizations of surface patch 20, become Porous or the film of perforate not.The body fluid that thus, can shorten wearer is trapped in the time in recess 70.In the time that the time in recess 70 of being trapped in is elongated, have the body fluid that is trapped in recess 70 in surface patch 20 and/or second 50 to in-plane diffusion, the situation that body fluid spills from absorbent commodity 1.In addition, thus, even because of walking or the body action of sitting down etc. and the variation of the postures such as accumbency that lie low, absorbent commodity 1 tilts, when the speed that body fluid spreads to length direction or the width of absorbent commodity 1 accelerates, also can suppress body fluid and spill from absorbent commodity 1.
On the other hand, generally when process at absorbent commodity formation recess by embossing, at the part surface sheet at the end of recess by filming.In the case, the liquid permeability of the bottom 13 of recess 70 reduces, and it is elongated that wearer's body fluid is trapped in time in recess 70.In addition, have length direction or the width diffusion to surface patch 20 and/or second 50 of the body fluid that is trapped in recess 70, the probability that wearer's body fluid spills from absorbent commodity 1.Particularly because of walking or the sit down body action that waits and the variation of the postures such as accumbency that lie low, absorbent commodity 1 tilts, and when the speed that body fluid spreads to the length direction of absorbent commodity 1 or width accelerates, the danger that body fluid spills from absorbent commodity 1 uprises.
In addition, in the bottom 13 of recess 70, because surface patch 20 is not by filming, so, in the bottom 13 of recess 70, can suppress surface patch 20 hardening.
In addition, at recess 70, the fiber of surface patch 20 is hot plastic deformation.Thus, even if surface patch 20 and second 50 become moisture state, recess 70 is also maintained.
From surface patch 20 till the recess 70 that the inside of second 50 forms form by the processing of needle roller embossing for example.Recess 70 preferred disposition engrails.The shape of the in-plane of the opening portion of recess 70 is preferably figure.In addition, the configuration of recess 70 is not limited to zigzag, also can be for example latticed.In addition, the shape of the in-plane of the opening portion of recess 70 is not limited to figure, and for example, the shape of the in-plane of the opening portion of recess 70 also can be other polygons, star, the ellipses such as square, rectangle, triangle.The size of the in-plane of the opening portion of recess 70 can be all identical, also can be according to the position in absorbent commodity 1 and difference.In addition, the degree of depth of recess 70 can be all identical, also can be according to the position in absorbent commodity 1 and difference.
The diameter of the opening portion of the in-plane of recess 70 is for example 1.2mm.Be configured to jagged recess 70, in the recess 70 of width adjacency, distance (spacing) is in the heart for example 3mm, and in the recess 70 of length direction adjacency, distance (spacing) is in the heart for example 2mm.
As mentioned above, surface patch 20 uses bonding agent to engage with second 50.Thus, even with the not temperature of heat fusing of surface patch 20 and second 50, surface patch 20 and second 50, in the situation that thickness direction adds hot compression, also can be suppressed to surface patch 20 and peel off from second 50.
For surface patch 20 is engaged in to the preferred pressure-sensitive bonding agent of bonding agent of second 50.Pressure-sensitive bonding agent for example has, the tackifier resins of the thermoplasticity macromolecules such as styrene block copolymer, natural resin system or synthetic resin system, and paraffin wax is the plastic materials such as oil plant.Styrene block copolymer can be enumerated for example styrene-ethylene-butadiene-styrene block copoly merization body (SEBS), s-B-S block interpolymers (SBS), styrene-isoprene-phenylethene block interpolymers (SIS), styrene-ethylene-propylene-styrene copolymer (SEPS) etc.The tackifier resins of natural resin system can be enumerated the rosin series resin of terpenic series resin, Colophonium, Starex or wood rosin of the copolymer of australene, nopinene or cinene or these hydrogen additive, ester etc.In addition, the tackifier resins of synthetic resin system can be enumerated for example fatty family (C5 system) Petropols, fragrant family (C9 system) Petropols, copolymerization through-stone oleoresin, and hydrogen adds Petropols, DCPD through-stone oleoresin, pure monomer through-stone oleoresin etc.In addition, plastic material can be enumerated the naphthenic oil that for example falls low viscous petrolatum system, promote viscosity, reduces cohesive force or give the fragrant wet goods of color, taste.
In addition, can, at surface patch 20 or second 50 adhesive-applying equably, also can be applied as predetermined pattern.Bonding agent is to the application pattern of surface patch 20 or second 50 coating, have on width across predetermined spaced and parallel the pattern of parallel lines of extending along its length, the band pattern, the amplitude that extend along its length that are arranged in parallel at width arranged be the wavy pattern that is arranged in parallel at width of width and the wave that extends along its length, the spiral that the extends helical pattern on width is arranged etc. along its length.Preferably 1～the 10g/m of coating weight per unit area of bonding agent
2.Thus, bonding agent is distributed in entirety and can reduces the hard sense because of the caused absorbent commodity 1 of existing of bonding agent, and the use of absorbent commodity 1 is felt to improve.
Back sheet 30 is sheets that the body fluid that comes from wearer for suppressing to be absorbed by absorber 40 spills laterally at thickness direction.Back sheet 30 can use with polyethylene, the thin film that polypropylene etc. are main body, and the resin film of aeration, has engaged sheet of the resin film of aeration etc. at spunbond or spunlaced etc. non-woven fabrics.Back sheet 30 preferably has when the flexibility that wear Shi Buhui wearer is produced discomfort degree.
As mentioned above, be provided with sealing 12 in the length direction both sides of absorbent commodity 1.Sealing 12 is by heat embossing processing etc., and surface patch 20, second slice 50 and back sheet 30 are added to hot compression and form at thickness direction.At sealing 12, surface patch 20, second slice 50 and back sheet 30 are engaged.
The preferred general planar of face of second 50 side of absorber 40.Thus, can suppress to cause the situation that body fluid accelerates to length direction or the width diffusion velocity of absorbent commodity 1 to produce because of surface patch 20 and second 50 a part with respect to the face tilt of the in-plane of absorbent commodity 1.On the other hand, the part that step, projection is set at the face of second 50 side of absorber 40, sometimes the inclination of the face of the in-plane with respect to absorbent commodity 1 of surface patch 20 and second 50 a part becomes large, and the probability that body fluid spills from length direction or the width of absorbent commodity 1 uprises.
Little compared with the size of the size of the absorber 40 in the in-plane of absorbent commodity 1 and the surface patch of the in-plane of absorbent commodity 1 20, second slice 50 and back sheet 30.In addition, the domain of the existence of the absorber 40 in the in-plane of absorbent commodity 1 is inner sides of the domain of the existence of surface patch in the in-plane of absorbent commodity 1 20, second slice 50 and back sheet 30.But the size of the absorber 40 in the in-plane of absorbent commodity 1, also can be identical with the size of surface patch 20 in the in-plane of absorbent commodity 1, second slice 50 or back sheet 30.
As mentioned above, the face of the opposition side in the face relative with surface patch 20 of sheet 30 is provided with bonding part 80 overleaf.Bonding part 80 is that absorbent commodity 1 is fixed on the underwears such as medicated underpants.By coating pressure-sensitive bonding agent, form bonding part 80.The pressure-sensitive bonding agent that is used to form bonding part 80 for example has, the tackifier resins of the thermoplasticity macromolecules such as styrene block copolymer, natural resin system or synthetic resin system, and paraffin wax is the plastic materials such as oil plant etc.
Secondly,, with reference to Fig. 3, the summary of the manufacture method of the absorbent commodity 1 of one embodiment of the present invention is described.Using as the absorbing material 222 of the mixture of comminution pulp and high-absorbable copolymer never illustrated comminution pulp feedway be supplied to jacquard drum 220.Form the recess 224 as the mould of filling absorbing material at the peripheral part of jacquard drum 220.Inside at jacquard drum 220 attracts 226, and the absorbing material 222 that is supplied to jacquard drum 220 is inhaled in recess 224.Absorbing material 222 is compressed and be configured as absorber 228, makes thus absorber 228.The absorber 228 of made is by the not shown predetermined shape of the cropped one-tenth of absorber sickle.
Secondly, banded surface patch-the second composite sheet 262 is configured in absorber 228 times.Surface patch-the second composite sheet 262 are surface patch sheets for making surface patch 20 with for making second 50 second by the overlapping composite sheet of sheet.In surface patch-the second composite sheet 262, till the inside slice with sheet, form recess from surface patch with sheet to the second.The manufacture method of surface patch-the second composite sheet 262 describes in the back.
The lateral plate sheet 272 that is used for a pair of band shape of making lateral plate 60 is supplied with from lateral plate roller 270.In the width both sides of surface patch-the second composite sheet 262, with the stacked a pair of sheet 272 for lateral plate of being supplied with of the overlapping mode of sheet for a part and the surface patch of surface patch-the second composite sheet 262.
Secondly,, from being wound with the back sheet roller 280 of the back sheet sheet for making back sheet 30, supply with banded sheet 282 for back sheet.Then, be laminated in surface patch-the second composite sheet 262 with back sheet with the mode back sheet sheet 282 that sheet 282 and surface patch-the second composite sheet 262 clip absorber 228.Like this, form the continuum 268 of absorbent commodity., form after sealing at the continuum 268 of absorbent commodity around sealing device by not shown, use sickle 290 continuum of absorbent commodity 268 to be cut into the shape of absorbent commodity, make absorbent commodity 1.
In addition, possess if can make liquid permeability surface patch, be located at the back sheet of the opaque liquid of the position relative with surface patch, be located at the absorber between surface patch and above-mentioned back sheet and be located at surface patch and above-mentioned absorber between the absorbent commodity of second, the manufacture method of absorbent commodity is not limited to above-mentioned manufacture method.
Secondly, with reference to Fig. 3, the manufacture method summary of instruction card dough sheet-the second composite sheet 262.From being wound with second second roller 230 with sheet for making second 50, supply with banded second with sheet 232.Use adhesive applicating apparatus 240, at second coating of the surface with sheet 232 pressure-sensitive bonding agent 242.The contactless coaters such as the contact coaters such as adhesive applicating apparatus 240 for example has, slit coater and atomizing coater, showering curtain type coater and spiral coater.
From being wound with the surface patch roller 250 of the surface patch sheet for making surface patch 20, supply with banded sheet 252 for surface patch.Then, the surface patch being supplied to is laminated in to second applicator surface with the pressure-sensitive bonding agent 242 of sheet 232 with sheet 252.
Second with sheet 232 stacked the composite sheet 254 of surface patch sheet 252 be supplied to embossing processing unit (plant) 260.At embossing processing unit (plant) 260, more than specific surface sheet is by the temperature of low 50 DEG C of the melting point of the fiber of sheet 252 and less than the temperature of the melting point of the fiber of surface patch sheet 252, add hot compression at thickness direction, form from surface patch sheet 252 till multiple recesses of second inside with sheet 232 in composite sheet 254.In the case of the temperature of compression combined 254 of heating with respect to surface patch with low compared with the temperature of low 50 DEG C of the melting point of the fiber of sheet 252, sometimes the not hot plastic deformation of fiber of sheet 252 for surface patch, is difficult to maintain the shape of the recess that is formed at composite sheet 254 sometimes.In addition, in the case, press while being applied to absorbent commodity when wearer's body, have the multiple recess fragmentations that are formed at from till the inside of surface patch to the second slice, the absorption of the body fluid of absorbent commodity is slack-off, or body fluid becomes the situation of easy diffusion in absorbent commodity.In the case of more than the heating temperature of compression combined 254 is the melting point of fiber of surface patch sheet 252, have the part filming at the end of the recess that is formed at composite sheet 254, or the situation of sheet hardening for surface patch.In the time that filming is divided in the bottom of recess, the infiltration rate that has the body fluid that is piled up in recess is slack-off, or is piled up in the diffusion of body fluids of recess, and the situation that body fluid easily spills from absorbent commodity is produced.
Surface patch is the melting points of instigating the binder fiber that the fiber of surface patch sheet 252 is engaged with each other with the melting point of the fiber of sheet 252.For example, the composite fibre of parallel type with the fiber of sheet 252 at surface patch, surface patch is melting points of the resin of the low melting point side of composite fibre with the melting point of the fiber of sheet 252, be core-sheath-type composite fibre at surface patch with the fiber of sheet 252, surface patch is melting points of the resin of the part of the sheath of core-sheath-type composite fibre with the melting point of the fiber of sheet 252.
Embossing processing unit (plant) 260 comprises epimere roller 264 and hypomere roller 266.Epimere roller 264 is the engraved rolls that are provided with the multiple needle rollers outstanding to radial direction on outer peripheral face.Hypomere roller 266 is straight rolls that outer peripheral face is level and smooth.In addition, engraved roll that also can be using hypomere roller 266 as the cloudy type of epimere roller 264.In addition, also can be using hypomere roller 266 as resilient roller.
Epimere roller 264 and hypomere roller 266 can be heated.The mode of heating epimere roller 264 and hypomere roller 266 for example has, electric mode of heating, induction mode of heating, thermal cycle mode of heating, steam heated mode and gas-heated mode etc.In addition, as long as composite sheet 254 is added to hot compression at thickness direction, just can only heat the side in epimere roller 264 and hypomere roller 266.
In addition, as long as add hot compression at thickness direction, form from surface patch sheet 252 till multiple recesses of second inside with sheet 232 in composite sheet 254, the method that recess is formed to composite sheet 254 is just not limited to the processing of roll-in flower.Also can, for example by dull and stereotyped embossing processing, high-frequency embossing processing or ultrasonic wave embossed processing, recessed closing be formed to composite sheet 254.
For example, above and less than the temperature of the melting point of the fiber of surface patch sheet 252 by the surperficial temperature of epimere roller 264 and hypomere roller 266 being formed as to the temperature of low 50 DEG C of melting point of the specific surface sheet fiber of sheet 252, can be more than specific surface sheet be by the temperature of low 50 DEG C of the melting point of the fiber of sheet 252 and less than the temperature of the melting point of the fiber of surface patch sheet 252, composite sheet 254 is added to hot compression at thickness direction.For example, core-sheath-type composite fibres at surface patch with the fiber of sheet 252, core has in the poly situation of melting point that the polyester of melting point of 250～260 DEG C and sheath have 115～130 DEG C, the surperficial temperature of epimere roller 264 and hypomere roller 266 be for example 60 DEG C above, less than 120 DEG C.
Between composite sheet 254 is by epimere roller 264 and hypomere roller 266 time, by the heated needle roller of epimere roller 264, form recess in composite sheet 254.Because the needle roller of epimere roller 264 and the temperature of hypomere roller 266 are the temperature less than the melting point of the fiber of surface patch sheet 252, so, in the part at the end of formed recess, the surface patch of composite sheet 254 does not melt with the fiber of sheet 252, not filming of sheet 252 for the surface patch of composite sheet 254.In addition, because the needle roller of epimere roller 264 and the temperature of hypomere roller 266 are more than the temperature of low 50 DEG C of melting point of the fiber of specific surface sheet sheet 252, so, in the time that composite sheet 254 is inserted by needle roller, surface patch is out of shape with the fiber softening of sheet 252, even after between composite sheet 254 is by epimere roller 264 and hypomere roller 266, surface patch is also maintained with the distortion of the fiber of sheet 252.
When composite sheet 254 is during by embossing processing unit (plant) 260, make and be formed with from surface patch sheet to the second surface patch-the second with the recess till the inside of a sheet composite sheet 262.As mentioned above, surface patch-the second of a made composite sheet 261 is configured in absorber 228 times with following operation.
Near the microphotograph in the cross section recess 70 of the absorbent commodity 1 that expression is made by above manufacture method in Fig. 4.The fiber of surface patch 20 is poly core-sheath-type composite fibres that core has the polyester of melting point of 250～260 DEG C and sheath and have the melting point of 115～130 DEG C.Being had poly core-sheath-type composite fibre and the ethylene-vinyl acetate that the polyester of melting point of 250～260 DEG C and sheath have the melting point of 115～130 DEG C of melting points for second 50 by chemical pulp, core is that binding agent forms.The temperature of processing in the time that surface patch 20 and second 50 are added hot compression by thickness direction by embossing is 100 DEG C.As shown in Figure 4, can learn the bottom 13 at recess 70, the shape of the wire of the fiber of surface patch 20 is maintained.In addition, at recess 70, the fiber bending of surface patch 20, carries out hot plastic deformation.In addition, in the bottom 13 of recess 70, the fiber of surface patch 20 does not melt, surface patch 20 not with second heat fusing.And, in the bottom 13 of recess 70, surface patch 20 filmings.
More than 0057 explanation is only an example, and the present invention is not limited to above-mentioned embodiment.
Embodiment
Below, illustrate in greater detail the present invention based on embodiment, but the present invention being not limited to these examples.
About embodiment and comparative example, absorption test while inclination.When inclination, absorption test is to point to the artificial menses of the test portion injection scheduled volume being inclined relative to horizontal, then the test whether spilling from the artificial menses of test portion inspection.By test portion is tilted, the artificial menses that are injected into test portion easily spill because gravity becomes from the end of width or the end of length direction of test portion.Therefore, absorption test during by inclination, checks which kind of degree artificial menses spill from test portion, thus, can judge which kind of degree, the test portion that whether is difficult to spill as body fluid.In addition, in absorbent commodity wears, absorbent commodity can tilt because of wearer's posture, action etc.Therefore, absorption test when tilting, even in the situation that wearer has changed posture or in the situation that wearer moves, also can take a decision as to whether the test portion that body fluid is difficult to spill.Below, with reference to Fig. 5 and Fig. 6, the method for absorption test while describing in detail.
(absorption test when inclination)
As shown in Figure 5, on the plate 420 of the predetermined angle (θ) of with respect to the horizontal plane 440 inclinations, with the smooth face along plate 420, the mode that back sheet becomes plate side configures test portion 420.Below, by plate 420 with respect to the horizontal plane 440 angle (θ) be called " inclination angle of plate ".As shown in Figure 6 (a), the length direction that test portion 410 is configured to test portion 410 is vertical with horizontal plane 440, or as shown in Figure 6 (b), the length direction that is configured to test portion 410 is parallel with horizontal plane 440, that is, the length direction of test portion 410 is level.The in the situation that of test portion 410 slave plate 420 landing, use binding agent that test portion 410 is fixed on to plate 420.The tab portion 11 of test portion 410 is to plate 420 side bendings.In the length direction of test portion and the position 412 of width central authorities, autoburette 430(Metrohm company is manufactured, Multi-Dosimat776) front end (titrator front end footpath: 1.3mm) contact, from automatic burette 430, with the injection rate of being scheduled to, test portion is injected to the artificial menses of predetermined amount.The artificial menses that inject, wander and the artificial menses that spill from test portion are configured in the culture dish 450 of the below of plate 420 reclaims from test portion.
By deduct the weight of injecting the test portion 410 before artificial menses from the weight of having injected the test portion 410 artificial menses, calculate absorbed by test portion 410 manually through blood volume.Or, by deducting the weight of empty culture dish 450 from the weight that has reclaimed the culture dish 450 artificial menses, calculate the amount of the artificial menses that spilt from test portion.The artificial menses that absorption test is used in the time tilting are by glycerol (with the pure pharmaceutical worker's industry of light (thigh) system and light one-level) 80g, sodium carboxymethyl cellulose (NaCMC) (using with the pure pharmaceutical worker's industry of light (thigh) inhibition and generation) 8g, sodium chloride (NaCl) (with the pure pharmaceutical worker's industry of light (thigh) reagent superfine processed) 10g, sodium bicarbonate (NaHCO3) (with the pure pharmaceutical worker's industry of light (thigh) system and light one-level) 4g, food coloring preparation (silver dollar manufacture (thigh) system): redness No. 102 8g, Amaranth 2g, Sunset Yellow FCF 2g is mixed in ion exchange water 1000cc and makes by dissolving.
Suitable temperature range while forming from multiple recess till the inside of above-mentioned surface patch to the second slice in order to check, checks absorption test is injected in the time tilting the infiltration rate of absorbent commodity of artificial menses and the diffusion length of the width of absorbent commodity.
(infiltration rate)
In the time tilting in absorption test, measure that artificial menses play that artificial menses are absorbed by surface patch and time till disappearing from the surface of surface patch from starting to inject.The time of this measurement becomes infiltration rate (second).
(diffusion length)
The diffusion zone of the artificial menses that injected in absorption test when tilting, the distance between the injection phase of the position of the end of the length direction of the absorbent commodity in the diffusion zone of artificial menses and artificial menses becomes diffusion length.
(test portion)
Secondly, the test portion of absorption test while being used for tilting is described.Test portion has 2 kinds of test portions by the test portion of surface patch and second test portion forming and absorbent commodity.Be embodiment 1 and comparative example 1～5 by surface patch and second test portion forming, the test portion of absorbent commodity is embodiment 2～5 and comparative example 6～13.
In embodiment 1～5 and comparative example 6～8, with plate embossing processing method, by adding hot compression 2 seconds, form recess surface patch and second.In the time of batch production absorbent commodity, there is the situation at surface patch and second formation recess with roll-in flower processing method.In the case, compared with the situation of plate embossing processing method, preferably heat compaction table dough sheet and second in high temperature and short time.
(by surface patch and second test portion forming)
(1) embodiment 1
The thickness of test portion: 1.00mm
The thickness of test portion uses PEACOCK thickness gauge, with the 3.0gf/cm that loads
2condition measure.Identical below.
(a) surface patch
Weight per unit area: 25g/m
2
Thickness: 0.5mm
Size: 85mm × 230mm
Material: comprising core is that polyester, the sheath with the melting point of 250～260 DEG C is the non-woven fabrics with the poly core-sheath-type composite fibre of the melting point of 115～130 DEG C.
Fiber number: 2.8dtex
(b) second
Weight per unit area: 40g/m
2
Thickness: 0.4～0.8mm
Size: 55mm × 230mm
Material: be the air-laid nonwoven fabrics that binding agent forms by chemical pulp, core-sheath-type composite fibre and ethylene-vinyl acetate, the core of this core-sheath-type composite fibre is the polyester with the melting point of 250～260 DEG C, and sheath is the polyethylene with the melting point of 115～130 DEG C.
(c) recess
The pattern of recess: saw tooth pattern
The aperture of recess: 1.2mm
The spacing of length direction: 2mm
The spacing of width: 3mm
Heating compression temperature: 100 DEG C
Heating compression time: 2 seconds
(d) gluing of surfaces sheet and second bonding agent
Material: polystyrene hot-melt adhesive
Coating amount: 5g/m
2
[table 1]
(2) comparative example 1
The surface patch being taken out by the product of manufacturing from Kao Corporation " the special thin 22.5cm of happy and refined zero sense of touch " and the test portion of second formation.
The thickness of test portion: 0.60mm
(a) surface patch
Weight per unit area: 28g/m
2
Thickness: 0.58mm
Size: 85mm × 225mm
Material: core is that polyethylene, sheath are the non-woven fabrics that polyacrylic core-sheath-type composite fibre is 50wt%, core is that polyethylene, sheath are that the core-sheath-type composite fibre of polyester is the non-woven fabrics of 50wt%.
(b) second
Weight per unit area: 26g/m
2
Thickness: 0.36mm
Size: 64mm × 225mm
Material: comprising core is that polyester, sheath are the non-woven fabrics of poly core-sheath-type composite fibre.
(3) comparative example 2
[table 2]
The surface patch being taken out by the product of manufacturing from Uni-Charm Co., Ltd " the special thin daily soft cotton top layer of Sufi's oxygen " and the test portion of second formation.
The thickness of test portion: 0.80mm
(a) surface patch
Weight per unit area: 25g/m
2
Thickness: 0.5mm
Size: 85mm × 230mm
Material: core is that polyester, sheath are the non-woven fabrics of poly core-sheath-type composite fibre.
(b) second
Weight per unit area: 30g/m
2
Thickness: 0.30～0.35mm
Size: 55mm × 230mm
Material: comprising core is that polypropylene, sheath are the non-woven fabrics of the core-sheath-type composite fibre of polyester.
(c) recess
The pattern of recess: saw tooth pattern
The aperture of recess: 1.2mm
The spacing of length direction: 2mm
The spacing of width: 3mm
Heating compression temperature: 120 DEG C
(d) gluing of surfaces sheet and second bonding agent
Material: polystyrene hot-melt adhesive
Coating amount: 5g/m
2
(4) comparative example 3
The test portion that the surface patch being taken out by the product of producing from Heng An Group Co.,Ltd " seven degree space maiden series are textile daily " forms.
The thickness of test portion: 0.80mm
(a) surface patch
Material: aspunlacednonwovenfa,ric.
(5) comparative example 4
The surface patch being taken out by the product of manufacturing from Uni-Charm Co., Ltd " center compact soft type daytime with " and the test portion of second formation.
The thickness of test portion: 2.00mm
(a) surface patch
Weight per unit area: 30g/m
2
Thickness: 0.7mm
Size: 85mm × 240mm
Material: comprising core is that polyester, sheath are the non-woven fabrics of poly core-sheath-type composite fibre.
(b) second
Weight per unit area: 65g/m
2
Thickness: 0.5～0.9mm
Size: 67mm × 215mm
Material: the core on upper strata is that polyester, sheath are the non-woven fabrics of poly core-sheath-type composite fibre, lower floor is to be that to have the polyester of melting point of 250～260 DEG C and sheath be that poly core-sheath-type composite fibre and the ethylene-vinyl acetate with the melting point of 115～130 DEG C of melting points is the compound air-laid nonwoven fabrics that binding agent forms by chemical pulp, core.
(c) gluing of surfaces sheet and second bonding agent
Material: polystyrene hot-melt adhesive
Coating amount: 1.5g/m
2
Application pattern: helical form
(6) comparative example 5
[table 3]
The surface patch being taken out by the product of manufacturing from Uni-Charm Co., Ltd " the perfect laminating 155 of Sufi " and the test portion of second formation.
The thickness of test portion: 1.40mm
(a) surface patch
Weight per unit area: 25g/m
2
Thickness: 0.5mm
Size: 55mm × 155mm
Material: comprising core is that polyester, sheath are the non-woven fabrics of poly core-sheath-type composite fibre.
(b) second
Weight per unit area: 70g/m
2
Thickness: 1.6mm
Size: 55mm × 155mm
Material: air-laid nonwoven fabrics.
(c) gluing of surfaces sheet and second bonding agent
Material: polystyrene hot-melt adhesive
Coating amount: 5g/m
2
Application pattern: spiral pattern
(test portion of absorbent commodity)
(1) embodiment 2
The central thickness of test portion: 2.93mm
(a) surface patch
Identical with embodiment 1.
(b) second
Identical with embodiment 1.
(c) recess
Heating compression temperature: 80 DEG C
In addition, identical with embodiment 1.
(d) gluing of surfaces sheet and second bonding agent
Identical with embodiment 1.
(e) absorber
Material: by comminution pulp and SAP(acrylic acid series high-absorbable copolymer) mixture be clipped in thin paper (weight per unit area: 15g/m
2) in the middle of.
Weight per unit area: 250～300g/m
2(both end sides of length direction)
350～400g/m
2(length direction central authorities)
Thickness: the both end sides of 1.35～1.45mm(length direction)
1.5mm(length direction central authorities)
(2) embodiment 3
The thickness of test portion: identical with embodiment 2.
(a) surface patch
Identical with embodiment 2.
(b) second
Identical with embodiment 2.
(c) recess
Heating compression temperature: 100 DEG C
In addition, identical with embodiment 2.
(d) gluing of surfaces sheet and second bonding agent
Identical with embodiment 2.
(e) absorber
Identical with embodiment 2.
(3) embodiment 4
The thickness of test portion: identical with embodiment 2.
(a) surface patch
Identical with embodiment 2.
(b) second
Identical with embodiment 2.
(c) recess
Heating compression temperature: 110 DEG C
In addition, identical with embodiment 2.
(d) gluing of surfaces sheet and second bonding agent
Identical with embodiment 2.
(e) absorber
Identical with embodiment 2.
(4) embodiment 5
The thickness of test portion: identical with embodiment 2.
(a) surface patch
Identical with embodiment 2.
(b) second
Identical with embodiment 2.
(c) recess
Heating compression temperature: 120 DEG C
In addition, identical with embodiment 2.
(d) gluing of surfaces sheet and second bonding agent
Identical with embodiment 2.
(e) absorber
Identical with embodiment 2.
(5) comparative example 6
The thickness of test portion: identical with embodiment 2.
(a) surface patch
Identical with embodiment 2.
(b) second
Identical with embodiment 2.
(c) recess
Heating compression temperature: without heating.
In addition, identical with embodiment 2.
(d) gluing of surfaces sheet and second bonding agent
Identical with embodiment 2.
(e) absorber
Identical with embodiment 2.
(6) comparative example 7
The thickness of test portion: identical with embodiment 2.
(a) surface patch
Identical with embodiment 2.
(b) second
Identical with embodiment 2.
(c) recess
Heating compression temperature: 60 DEG C
In addition, identical with embodiment 2.
(d) gluing of surfaces sheet and second bonding agent
Identical with embodiment 2.
(e) absorber
Identical with embodiment 2.
(7) comparative example 8
The thickness of test portion: identical with embodiment 2.
(a) surface patch
Identical with embodiment 2.
(b) second
Identical with embodiment 2.
(c) recess
Heating compression temperature: 130 DEG C
In addition, identical with embodiment 2.
(d) gluing of surfaces sheet and second bonding agent
Identical with embodiment 2.
(e) absorber
Identical with embodiment 2.
(8) comparative example 9
[table 4]
The product " the special thin 22.5cm of happy and refined zero sense of touch " that Kao Corporation manufactures.
The central thickness of test portion: 3.2mm
(a) surface patch
Identical with comparative example 1.
(b) second
Identical with comparative example 1.
(c) absorber
Material: the composite sheet of paper pulp and SAP
Weight per unit area: 100g/m
2
Thickness: the central authorities of 1.5mm(length direction)
(9) comparative example 10
[table 5]
The product " the special thin daily soft cotton top layer of Sufi's oxygen " that Uni-Charm Co., Ltd manufactures.
The central thickness of test portion: 3.85mm
(a) surface patch
Identical with comparative example 2.
(b) second
Identical with comparative example 2.
(c) recess
Identical with comparative example 2.
(d) gluing of surfaces sheet and second bonding agent
Identical with comparative example 2.
(e) absorber
Material: the mixture of paper pulp and SAP is clipped in to thin paper (weight per unit area: 15g/m
2) in the middle of
Weight per unit area: 175g/m
2
Thickness: 3mm
(10) comparative example 11
The product " seven degree space maiden series are textile daily " that society of Heng An Group Co.,Ltd manufactures
The central thickness of test portion: 4.35mm
(a) surface patch
Identical with comparative example 3.
(b) second
Identical with comparative example 3.
(c) absorber
Material: the mixture of paper pulp and SAP is clipped in to thin paper (weight per unit area: 19g/m
2) in the middle of
Weight per unit area: 300g/m
2
Thickness: 3mm
(11) comparative example 12
The product " center compact soft type daytime with " that Uni-Charm Co., Ltd manufactures
The central thickness of test portion: 7.05mm
(a) surface patch
Identical with comparative example 4.
(b) second
Identical with comparative example 4.
(c) gluing of surfaces sheet and second bonding agent
Identical with comparative example 4.
(e) absorber
Material: the mixture of comminution pulp and SAP is clipped in thin paper (weight per unit area: 13.5g/m by epimere
2) in the middle of.Hypomere is SAP sheet.
(12) comparative example 13
[table 6]
The product " the perfect laminating 155 of Sufi " that Uni-Charm Co., Ltd manufactures
The central thickness of test portion: 1.40mm
(a) surface patch
Identical with comparative example 5.
(b) second
Identical with comparative example 5.
(c) gluing of surfaces sheet and second bonding agent
Identical with comparative example 5.
(d) absorber
Nothing
(result)
Be set to 90 ° with the inclination angle of plate, the length direction that test portion is configured to test portion is vertical with horizontal plane, when angle of inclination surface patch when the injection rate of dividing with 7ml/ has been injected the artificial menses of 3ml and second test portion being formed tilt, the result of absorption test, is illustrated in following table 1.
[table 7]
The result of absorption test when the inclination of table 1 embodiment and comparative example
| ? | Absorbtivity (g) | Leakage (g) |
| Embodiment 1 | 3.02 | 0.08 |
| Comparative example 1 | 1.57 | 1.41 |
| Comparative example 2 | 2.60 | 0.51 |
| Comparative example 3 | 1.43 | 1.64 |
With the inclination angle of plate be set to 45 °, the length direction that test portion is configured to test portion is vertical with horizontal plane, when angle of inclination surface patch when the injection rate of dividing with 7ml/ has been injected the artificial menses of 3ml and second test portion being formed tilt, the result of absorption test, is illustrated in following table 2.
[table 8]
The result of absorption test when the inclination of table 2 embodiment and comparative example
| ? | Absorbtivity (g) | Leakage (g) |
| Embodiment 1 | 2.91 | 0.00 |
| Comparative example 1 | 2.18 | 0.94 |
| Comparative example 2 | 3.11 | 0.00 |
| Comparative example 3 | 2.60 | 0.47 |
With the inclination angle of plate be set to 45 °, length direction that test portion is configured to test portion is level, when angle of inclination surface patch when the injection rate of dividing with 7ml/ has been injected the artificial menses of 3ml and second test portion being formed tilt, the result of absorption test, is illustrated in following table 3.
[table 9]
The result of absorption test when the inclination of table 3 embodiment and comparative example
| ? | Absorbtivity (g) | Leakage (g) |
| Embodiment 1 | 1.39 | 1.67 |
| Comparative example 1 | 0.64 | 2.38 |
| Comparative example 2 | 1.18 | 1.89 |
| Comparative example 3 | 1.10 | 1.95 |
With the inclination angle of plate be set to 10 °, the length direction that test portion is configured to test portion is vertical with horizontal plane, when angle of inclination surface patch when the injection rate of dividing with 96ml/ has been injected the artificial menses of 3ml and second test portion being formed tilt, the result of absorption test, is illustrated in following table 4.
[table 10]
The result of absorption test when the inclination of table 4 embodiment and comparative example
| ? | Absorbtivity (g) | Leakage (g) |
| Embodiment 1 | 2.97 | 0.21 |
| Comparative example 1 | 2.36 | 0.73 |
| Comparative example 2 | 2.50 | 0.58 |
| Comparative example 3 | 2.66 | 0.47 |
| Comparative example 4 | 2.80 | 0.25 |
| Comparative example 5 | 2.83 | 0.30 |
With the inclination angle of plate be set to 10 °, length direction that test portion is configured to test portion is level, when angle of inclination surface patch when the injection rate of dividing with 96ml/ has been injected the artificial menses of 3ml and second test portion being formed tilt, the result of absorption test, is illustrated in following table 5.
[table 11]
The result of absorption test when the inclination of table 5 embodiment and comparative example
| ? | Absorbtivity (g) | Leakage (g) |
| Embodiment 1 | 2.56 | 0.52 |
| Comparative example 1 | 1.02 | 1.73 |
| Comparative example 2 | 1.88 | 1.13 |
| Comparative example 3 | 1.52 | 1.57 |
| Comparative example 4 | 2.88 | 0.14 |
| Comparative example 5 | 2.74 | 0.38 |
With the inclination angle of plate be set to 10 °, the length direction that test portion is configured to test portion is vertical with horizontal plane, when the test portion of the absorbent commodity when injection rate of dividing with 96ml/ has been injected the artificial menses of 3ml tilts, the result of absorption test, is illustrated in following table 6.
[table 12]
The result of absorption test when the inclination of table 6 embodiment and comparative example
| ? | Absorbtivity (g) | Leakage (g) |
| Embodiment 3 | 3.20 | 0.00 |
| Comparative example 9 | 3.15 | 0.00 |
| Comparative example 10 | 3.12 | 0.00 |
| Comparative example 11 | 3.01 | 0.00 |
| Comparative example 12 | 3.13 | 0.00 |
| Comparative example 13 | 3.14 | 0.00 |
With the inclination angle of plate be set to 10 °, length direction that test portion is configured to test portion is level, when the test portion of the absorbent commodity when injection rate of dividing with 96ml/ has been injected the artificial menses of 3ml tilts, the result of absorption test, is illustrated in following table 7.
[table 13]
The result of absorption test when the inclination of table 7 embodiment and comparative example
| ? | Absorbtivity (g) | Leakage (g) |
| Embodiment 3 | 3.11 | 0.00 |
| Comparative example 9 | 3.14 | 0.00 |
| Comparative example 10 | 3.01 | 0.00 |
| Comparative example 11 | 3.08 | 0.00 |
| Comparative example 12 | 3.14 | 0.00 |
| Comparative example 13 | 3.07 | 0.00 |
With the inclination angle of plate be set to 10 °, length direction that test portion is configured to test portion is level, when the test portion of the absorbent commodity when injection rate of dividing with 96ml/ has been injected the artificial menses of 7ml tilts, the result of absorption test, is illustrated in following table 8.
[table 14]
The result of absorption test when the inclination of table 8 embodiment and comparative example
| ? | Absorbtivity (g) | Leakage (g) |
| Embodiment 3 | 7.20 | 0.00 |
| Comparative example 9 | 5.36 | 1.88 |
| Comparative example 10 | 6.06 | 1.06 |
| Comparative example 11 | 5.44 | 1.78 |
| Comparative example 12 | 2.47 | 4.69 |
| Comparative example 13 | 4.33 | 2.78 |
About the test portion (embodiment 2～5, comparative example 6～8) that has changed the temperature while adding hot compression in order to form recess surface patch and second, with the inclination angle of plate be set to 10 °, length direction that test portion is configured to test portion is level, the infiltration rate of test portion and the result of diffusion length of the absorbent commodity when injection rate of dividing with 96ml/ has been injected the artificial menses of 3ml, be illustrated in following table 9.
[table 15]
The result of absorption test when the inclination of table 9 embodiment and comparative example
Absorption test during according to above inclination, as shown in table 8, in the embodiment 3 of an absorbent commodity as one embodiment of the present invention and the comparative example 9～13 of the absorbent commodity as in the past, only embodiment 3 is on the plate that is inclined relative to horizontal 10 °, along the smooth face of plate, the length direction of absorbent commodity is to flatly configuration, the central position of the length direction of the absorbent commodity in surface patch and width, when the injection rate of dividing with 96ml/ has been injected the artificial menses of 7ml, the artificial menses that are injected into surface patch can be from bending the absorbent commodity of tab portion wander, all absorbability article absorb.Therefore, 10cm at the width of absorbent commodity, absorbent commodity is on the plate that is inclined relative to horizontal 10 °, the length direction that is configured to absorbent commodity along the smooth face of plate is level, in the length direction of absorbent commodity and the position of width central authorities of surface patch, when the injection rate of dividing with 96ml/ has been injected the artificial menses of 7ml, the artificial menses that are injected into surface patch can be from bending the absorbent commodity of tab portion wander, , can not wander from body, the absorbent commodity that all absorbability article absorb, can limit absorbent commodity of the present invention.
As shown in table 9 can learning, absorption test during according to above inclination, more than the temperature of low 50 DEG C of the melting point of the fiber of specific surface sheet and less than the i.e. temperature of 80 DEG C, 100 DEG C, 110 DEG C, 120 DEG C of temperature of the melting point of the fiber of surface patch, add hot compression at thickness direction, form from the multiple recesses till the inside of surface patch to the second slice, thus, can speed the absorption of the body fluid of absorbent commodity, dwindle the diffusion of the body fluid of absorbent commodity.Although that comparative example 6 absorbs is fast, diffusion is less, cannot form reliably recess surface patch and second.In addition, known according to table 9, the most applicable temperature while adding hot compression taking plate embossing processing method is as 80 DEG C.Therefore, known with roll-in flower processing method batch production absorbent commodity in the situation that, preferably than 80 DEG C of high temperature, for example at 100 DEG C to add hot compression than 2 seconds short time.
The explanation of Reference numeral
1 absorbent commodity
11 tab portion
12 sealings
The end of 13 recesses
20 surface patch
30 back sheets
40 absorbers
50 second
60 lateral plates
The end of the width inner side of 62 lateral plates
70 recesses
80 bonding parts
220 jacquard drums
230 second rollers
240 adhesive applicating apparatus
250 surface patch rollers
260 embossing processing unit (plant)s
262 surface patch-the second composite sheet
264 epimere rollers
266 hypomere rollers
270 lateral plate rollers
280 back sheet rollers
290 sicklies.
Claims (7)
1. an absorbent commodity, is characterized in that, comprises:
The surface patch of liquid permeability;
Be arranged on the back sheet of the opaque liquid of the position relative with above-mentioned surface patch;
Be arranged on the absorber between above-mentioned surface patch and above-mentioned back sheet; With
Be arranged on second between above-mentioned surface patch and above-mentioned absorber,
Add hot compression at thickness direction, form multiple recesses of the inside from above-mentioned surface patch to above-mentioned second,
At above-mentioned recess, the hot plastic deformation of the fiber of above-mentioned surface patch, and in the bottom of above-mentioned recess, the shape of the wire of the fiber of above-mentioned surface patch is maintained,
Above-mentioned surface patch uses bonding agent, with above-mentioned the second chip bonding,
Above-mentioned second comprises the air-laid nonwoven fabrics with paper pulp.
2. absorbent commodity according to claim 1, is characterized in that,
Said flow becomes net non-woven fabrics also to comprise heat fusing fiber.
3. absorbent commodity according to claim 1 and 2, is characterized in that,
The face of above-mentioned second side of above-mentioned absorber is general planar.
4. according to the absorbent commodity described in any one in claim 1～3, it is characterized in that,
Also have the lateral plate of a pair of opaque liquid, it is arranged on the both sides of the width of above-mentioned surface patch, and has the region overlapping with above-mentioned surface patch,
The end of the width inner side of above-mentioned lateral plate is free end.
5. according to the absorbent commodity described in any one in claim 1～4, it is characterized in that,
In length direction both sides, there is sealing in the length direction outside of the end of the length direction of above-mentioned absorber, sealing portion adds hot compression and engages above-mentioned surface patch, above-mentioned second and above-mentioned back sheet at thickness direction.
6. an absorbent commodity, it possesses:
The surface patch of liquid permeability;
Be arranged on the back sheet of the opaque liquid of the position relative with above-mentioned surface patch;
Be arranged on the absorber between above-mentioned surface patch and above-mentioned back sheet; With
Be arranged on second between above-mentioned surface patch and above-mentioned absorber,
It is characterized in that, this absorbent commodity has body,
And be formed with from above-mentioned surface patch till multiple recesses of the inside of above-mentioned second,
Width at the body of the width of the length direction central authorities of above-mentioned absorbent commodity is 10cm, above-mentioned absorbent commodity is on the plate that is inclined relative to horizontal 10 °, along the smooth face of this plate, the length direction that is configured to above-mentioned absorbent commodity is level, the position of the length direction of the above-mentioned absorbent commodity in above-mentioned surface patch and width central authorities, in the time that the injection rate of dividing with 96ml/ has been injected the artificial menses of 7ml, these artificial menses that are injected into above-mentioned surface patch can not wandered from the body of above-mentioned absorbent commodity, all absorbed by above-mentioned absorbent commodity.
7. the manufacture method of an absorbent commodity, this absorbent commodity possess liquid permeability surface patch, be arranged on the opaque liquid of the position relative with above-mentioned surface patch back sheet, be arranged on the absorber between above-mentioned surface patch and above-mentioned back sheet and be arranged on above-mentioned surface patch and above-mentioned absorber between second, the manufacture method of above-mentioned absorbent commodity is characterised in that, comprises:
Prepare second operation with sheet for making above-mentioned second;
In above-mentioned second operation with the surperficial adhesive-applying of sheet;
Prepare the operation of the surface patch sheet for making above-mentioned surface patch;
At above-mentioned second stacked above-mentioned surface patch sheet of applicator surface with the above-mentioned bonding agent of sheet, make above-mentioned surface patch sheet and above-mentioned second operation by the composite sheet of sheet; With
More than than the temperature of low 50 DEG C of the melting point of the fiber of above-mentioned surface patch and less than the temperature of the melting point of the fiber of above-mentioned surface patch, add hot compression at thickness direction, by from above-mentioned surface patch with sheet till multiple recesses of above-mentioned second inside with sheet are formed on the operation of above-mentioned composite sheet.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-258236 | 2011-11-25 | ||
| JP2011258236A JP6222886B2 (en) | 2011-11-25 | 2011-11-25 | Absorbent article and manufacturing method thereof |
| PCT/JP2012/074428 WO2013077074A1 (en) | 2011-11-25 | 2012-09-24 | Absorptive article and manufacturing method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103906489A true CN103906489A (en) | 2014-07-02 |
| CN103906489B CN103906489B (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201280052192.XA Active CN103906489B (en) | 2011-11-25 | 2012-09-24 | Absorbent commodity and manufacture method thereof |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6222886B2 (en) |
| CN (1) | CN103906489B (en) |
| TW (1) | TWI620552B (en) |
| WO (1) | WO2013077074A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108697561A (en) * | 2016-03-24 | 2018-10-23 | 大王制纸株式会社 | Absorbent commodity |
| TWI770340B (en) * | 2017-12-28 | 2022-07-11 | 日商優你 嬌美股份有限公司 | absorbent articles |
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| RU2630211C1 (en) | 2011-06-10 | 2017-09-05 | Дзе Проктер Энд Гэмбл Компани | Disposable diapers |
| PL2740449T3 (en) | 2012-12-10 | 2019-07-31 | The Procter & Gamble Company | Absorbent article with high absorbent material content |
| PL3254656T3 (en) | 2013-06-14 | 2022-01-10 | The Procter & Gamble Company | Absorbent article and absorbent core forming channels when wet |
| CN110013386B (en) * | 2013-08-27 | 2021-10-01 | 宝洁公司 | Absorbent article with channels |
| WO2015031243A1 (en) * | 2013-08-27 | 2015-03-05 | The Procter & Gamble Company | Absorbent articles with channels |
| US9987176B2 (en) | 2013-08-27 | 2018-06-05 | The Procter & Gamble Company | Absorbent articles with channels |
| JP5898150B2 (en) * | 2013-09-02 | 2016-04-06 | 花王株式会社 | Absorbent articles |
| EP2851048B1 (en) | 2013-09-19 | 2018-09-05 | The Procter and Gamble Company | Absorbent cores having material free areas |
| US9789009B2 (en) | 2013-12-19 | 2017-10-17 | The Procter & Gamble Company | Absorbent articles having channel-forming areas and wetness indicator |
| JP6375571B2 (en) * | 2014-02-19 | 2018-08-22 | 日本製紙クレシア株式会社 | Hand towel etc. and tissue paper absorbency test equipment |
| US10064766B2 (en) | 2014-09-12 | 2018-09-04 | The Procter & Gamble Company | Nonwoven material having discrete three-dimensional deformations that are configured to collapse in a controlled manner |
| US20160074248A1 (en) | 2014-09-12 | 2016-03-17 | The Procter & Gamble Company | Absorbent article comprising a topsheet/acquisition layer laminate |
| CN106804103A (en) | 2014-09-12 | 2017-06-06 | 宝洁公司 | The non-woven material in the discrete 3 D deformation portion with the base portion opening wide with base binder to extra play |
| MX2017003322A (en) | 2014-09-12 | 2017-11-22 | Procter & Gamble | Method of making nonwoven material having discrete three-dimensional deformations with wide base openings that are bonded to additional layer. |
| JP6816351B2 (en) * | 2015-04-03 | 2021-01-20 | 王子ホールディングス株式会社 | Airlaid non-woven fabric and absorbent articles |
| EP3167859B1 (en) | 2015-11-16 | 2020-05-06 | The Procter and Gamble Company | Absorbent cores having material free areas |
| EP3216434A1 (en) | 2016-03-08 | 2017-09-13 | The Procter and Gamble Company | Absorbent article comprising a topsheet/acquisition web laminate |
| EP3238678B1 (en) | 2016-04-29 | 2019-02-27 | The Procter and Gamble Company | Absorbent core with transversal folding lines |
| EP3238676B1 (en) | 2016-04-29 | 2019-01-02 | The Procter and Gamble Company | Absorbent core with profiled distribution of absorbent material |
| JP6371363B2 (en) | 2016-11-30 | 2018-08-08 | 花王株式会社 | Absorbent articles |
| WO2018161288A1 (en) | 2017-03-09 | 2018-09-13 | The Procter & Gamble Company | Three-dimensional materials having apertures and voids |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2013111127A (en) | 2013-06-10 |
| WO2013077074A1 (en) | 2013-05-30 |
| CN103906489B (en) | 2015-10-21 |
| TW201334766A (en) | 2013-09-01 |
| TWI620552B (en) | 2018-04-11 |
| JP6222886B2 (en) | 2017-11-01 |
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