CN102821723A - Body fluid treatment article and method for manufacturing same - Google Patents
Body fluid treatment article and method for manufacturing same Download PDFInfo
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- CN102821723A CN102821723A CN2011800153980A CN201180015398A CN102821723A CN 102821723 A CN102821723 A CN 102821723A CN 2011800153980 A CN2011800153980 A CN 2011800153980A CN 201180015398 A CN201180015398 A CN 201180015398A CN 102821723 A CN102821723 A CN 102821723A
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- sheet
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- dough sheet
- net
- extrusion bar
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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
- A61F13/45—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 shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
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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
- A61F13/45—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 shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
- A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
- A61F13/4756—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level
Abstract
The present invention provides a body fluid treatment article wherein twisting while being worn can be inhibited, and a method for manufacturing the same. A panty liner (1) comprises: inner and outer surface sheets (2, 3); a fluid-absorption interlining (4) located between the inner and outer surface sheets (2, 3); and a leakproof sheet (5) with which the outer surface sheet (3) is covered. A fiber nonwoven fabric containing thermoplastic synthetic resin is used as the inner and outer surface sheets (2, 3), and fluff pulp is used as the interlining (4). On the inner surface sheet (2) are formed a plurality of compressed grooves (7) toward the outer surface sheet (3) in a manner that the compressed grooves (7) form a grid pattern by extending so as to cross one another respectively in the lengthwise direction (Y) and the crosswise direction (X). The compressed grooves (7) comprise a first portion formed from the inner surface sheet (2) toward the interlining (4) and second portions each provided with a bottom and formed from the lower part of the first portion toward the outer surface sheet (3) in such a manner that the interval between both of the lateral sides is reduced gradually. At the bottoms of the second portions, at least parts of the fibers forming the inner surface sheet (2) and the fibers forming the outer surface sheet (3) are in contact with each other and welded.
Description
Technical field
The present invention relates to throw-away body fluid treating articles such as sanitary napkin, urine absorbent pad, sanitary pad, relate in particular to from its surface along thickness direction and be formed with a plurality of recessed throw-away body fluid treating articles and manufacturing approach thereof.
Background technology
All the time, the technology of a plurality of grooves of formation is known on throw-away body fluid treating articles such as sanitary napkin.For example, according to patent documentation 1, throw-away body fluid treating article has surface patch, back sheet, the absorber that is clipped by these surface patch back sheets and a plurality of grooves that form to the absorber compression from surface patch.Between surface patch and absorber, be coated with hot-melt adhesive.
The throw-away body fluid treating article of above-mentioned that kind forms groove through knurling rolls.That is, throw-away body fluid treating article is passed through between knurling rolls with protuberance and the backing roll relative with it, form a plurality of grooves thus.Fusion has hot-melt adhesive in such groove, thereby surface patch is engaged with back sheet.Through engaging of surface patch and back sheet, can improve their tight contact, can more effectively receive the liquid on the surface patch at the absorber side joint.
Patent documentation 1: Japan's special hope 2005-218648 communique (JP2005-218648A)
According to above-mentioned patent documentation 1, a plurality of grooves do not arrive back sheet, between the bottom of groove and back sheet, accompany the core of absorber.About this throw-away body fluid treating article,,, cause absorber to be distorted so under it wore state, core might move because of core can longitudinally and laterally move.
Summary of the invention
It is problem that problem of the present invention provides a kind of throw-away body fluid treating article and manufacturing approach thereof that can suppress distortion under the state of wearing.
The present invention has first and second invention.
First invention relates to a kind of improvement of throw-away body fluid treating article; This throw-away body fluid treating article has vertical and horizontal; Comprise bodyside and opposition side thereof, at the interior dough sheet of the liquid permeability of said bodyside, at the outer dough sheet of said opposition side and the core of the absorbency between these sheets, in said, be formed with a plurality of extrusion bar grooves on the dough sheet.
The core of said absorbency not through special means be interweaved, molten apply or melting adhered etc., and not by other coverings such as sheet material.
In above-mentioned throw-away body fluid treating article; First invention is characterised in that; Dough sheet and said outer dough sheet are formed by fabric nonwoven cloth in said; Said extrusion bar groove the said of dough sheet in said vertically with in the said horizontal Zone Full forms, and said extrusion bar groove comprises: from the first of said interior dough sheet dough sheet formation outside said; With from said first dough sheet and second portion of forming with the mode that links to each other with said first outside said, at said second portion, said at least a portion of at least a portion and the fiber of said outer dough sheet of fiber of dough sheet melt deposited each other.
As an embodiment of the invention, said interior dough sheet and said outer dough sheet are formed by the fabric nonwoven cloth that contains thermoplasticity synthetic resin.
As an embodiment of the invention, said second portion vertically is formed with a plurality of with said horizontal any at least side along said in said extrusion bar groove discontinuously side by side.
As an embodiment of the invention, said extrusion bar groove is with respect to tilting with the binary virtual vertical centrage of said horizontal length dimension and with the binary virtual horizontal centrage of said length dimension longitudinally.
As an embodiment of the invention, said extrusion bar groove also has recess, and at least a portion of said recess and said first is overlapping.
As other one of embodiment, the quality of the per unit area of said core is 70～350g/m
2
As other one of embodiment, said extrusion bar groove be said in dough sheet area 10～30%.
As other one of embodiment, said in dough sheet contain short fiber.
Second invention relates to a kind of improvement that on the cascade net sheet, forms the manufacturing approach of a plurality of extrusion bar grooves, and said cascade net sheet comprises: the first net sheet and second by the fabric nonwoven cloth that contains thermoplasticity synthetic resin forms is netted sheet; And the core that is configured in the absorbency between these net sheets.
In above-mentioned manufacturing approach, second invention is characterised in that, comprising: in the operation of said first net said core of sheet laminated and the said second net sheet; Form mechanism through groove, the cascade net sheet that is formed by the said first net sheet, the second net sheet and core is compressed, and form the operation of said extrusion bar groove; Through sealing mechanism, will be said around said core the first net sheet and second net that sheet is bonded with each other and the operation that forms sealing; With through shut-off mechanism, will the said first net sheet around said sealing and the operation cut off of the second net sheet, said groove forms mechanism to have: be formed with first protuberance and the knurling rolls of second protuberance given prominence to from said first protuberance; Backing roll with and surface smoothing relative with said knurling rolls; Through said knurling rolls and said backing roll said cascade net sheet is pressurizeed, heats, and at least a portion hot melt of the fiber of the said first net sheet and the second net sheet is applied in the pairing position of said second protuberance.
The core of said absorbency form the operation that mechanism forms extrusion bar groove through groove before, not through special means be interweaved, molten apply or melting adhered etc., and not by other coverings such as sheet material.And core was not implemented special processing such as pressurization form the operation that mechanism forms extrusion bar groove through said groove before.
The effect of invention
The part of the fiber of the inside and outside dough sheet of formation throw-away body fluid treating article is molten each other applying at the second portion place.Therefore, moving of inside and outside these absorbency core between dough sheet can be limited, thereby the throw-away body fluid treating article distortion can be prevented.
Description of drawings
Fig. 1 be the throw-away body fluid treating article of first embodiment an example, be sanitary pad's vertical view.
Fig. 2 (a) is the amplification synoptic diagram in the zone shown in the II of Fig. 1, and Fig. 2 (b) is that the II B-II B line of Fig. 2 (a) is analysed and observe synoptic diagram, and Fig. 2 (c) is the amplification synoptic diagram in zone shown in the II C of Fig. 2 (b).
Fig. 3 is the key diagram that is used to explain the manufacturing approach of throw-away body fluid treating article.
Fig. 4 is the pattern figure of knurling rolls.
Fig. 5 (a) is the partial enlarged drawing in zone shown in the V of Fig. 4, and Fig. 5 (b) is the VB-VB line cutaway view of Fig. 5 (a).
Fig. 6 is the sanitary pad's of other embodiments a vertical view.
Fig. 7 is the sanitary pad's of other embodiments a vertical view.
The specific embodiment
Use sanitary pad 1 to describe as an example of throw-away body fluid treating article of the present invention.Fig. 1 is sanitary pad 1 a vertical view; Fig. 2 (a) amplifies the figure that representes its summary with the zone shown in the II of Fig. 1; Fig. 2 (b) is the II B-II B line cross section of Fig. 2 (a), is the figure of its summary of expression; Fig. 2 (c) amplifies the figure that representes its summary with zone shown in the II C of Fig. 2 (b).Sanitary pad 1 have vertical Y and laterally X, with the binary virtual vertical centrage P-P of the length dimension of horizontal X with the binary virtual horizontal centrage Q-Q of the length dimension of vertical Y, sanitary pad 1 roughly forms with respect to virtual vertical centrage P-P and virtual horizontal centrage Q-Q symmetrically.
Sanitary pad 1 comprises: the dough sheet 2 that is positioned at wearer's bodyside; Be positioned at its opposite side, be the outer dough sheet 3 of garment side; Core 4 of dough sheet 2, the absorbency between 3 inside and outside these; With the leakage prevention sheet 5 that outer dough sheet 3 is covered.Interior dough sheet 2, outer dough sheet 3 and leakage prevention sheet 5 have roughly the same shape and size, and core 4 is than they little circles.Between interior dough sheet 2 and core 4, core 4 and outside between the dough sheet 3, between outer dough sheet 3 and the leakage prevention sheet 5, with suitable pattern for example striped, grid, parallel lines, loose and pattern such as select and be coated with not shown hot-melt adhesive respectively.And, under the situation of striped, grid, parallel lines, also can be the pattern elements of zigzag, spiral type etc.
The quality of the per unit area of core 4 is about 70～350g/m
2, be preferably about 80～200g/m
2, in this embodiment, use about 150g/m
2Time of Fluff Slurry.As core 4, hope to use average fiber length to be about the pulp fibres of 0.5～3.0mm, except that natural pulp fibres, can also use the synthetic pulp fiber.In addition, also can in these slurries, mix absorbent material such as superabsorbent polymer particles.And, in order to keep shape, to promote capillarity etc., also can use an amount of, the thermoplastic synthetic fiber of 5～25 quality % (short fiber) for example.In this case, thermoplastic synthetic fiber's average fiber length is preferably grown than the average fiber length of pulp fibres and is below about 50mm.The core 4 of above-mentioned that kind is not to be to hand over network, molten applying or melting adhered forming each other through special means, but cascades, in addition, and not by other coverings such as sheet material.
Using the quality of per unit area as leakage prevention sheet 5 is about 21g/m
2Non-breathability polyethylene film.This leakage prevention sheet 5 is used for preventing absorbing the leakage of the body fluid of core 4, and for example can also using, the quality of per unit area is about 30～60g/m
2Poisture-penetrability plastic sheeting, the quality of per unit area be about 25～50g/m
2Spunbond compound (SMS) fabric nonwoven cloth etc. that melts and sprays.
Periphery along interior dough sheet 2 around core 4 is formed with sealing 6, thereby interior dough sheet 2, outer dough sheet 3 and leakage prevention sheet 5 are bonded with each other.Sealing 6 through with interior dough sheet 2, outer dough sheet 3 and leakage prevention sheet 5 respectively hot melt apply and form, and strengthen its bond strength through the hot-melt adhesive between each sheet (not shown).
On interior dough sheet 2, be formed with a plurality of extrusion bar grooves 7 towards outer dough sheet 3.Extrusion bar groove 7 extends with the mode that longitudinally Y and horizontal X intersect respectively, forms the grid style.Shown in Fig. 2 (a), Fig. 2 (b), extrusion bar groove 7 has: the first 8 of 4 formation from interior dough sheet 2 towards core; The second portion that the end is arranged 9 that forms with the mode that the interval of two sides is diminished gradually towards outer dough sheet 3 with bottom 8a from first 8.The length dimension t1 of thickness direction that is not formed with the part of first and second part 8,9 is about 1.4～1.6mm; Length dimension from the bottom 8a of first 8 to outer dough sheet 3; The depth dimensions t2 that is second portion 9 is about 0.55～0.70mm; Length dimension from the bottom surface 9a of second portion 9 to outer dough sheet 3, promptly depth dimensions t3 is about 0.09～0.15mm.Size t3 is about 1/10 of size t1.These sizes are to freeze in the liquid nitrogen then to block with cut-off knife through sanitary pad 1 is impregnated into, and reuse ultramicroscope (Keyemce company (KEYENCE CORPORATION) makes VE7800) is measured each thickness at truncation surface place and obtained.Mensuration is to return to room temperature and carry out after thawing at the sample that has freezed.
In the 9a of the bottom of second portion 9, the length and the width of edge extrusion bar groove 7 are formed with protrusion 9b.The pressed density of the fluff pulp fibers of this protrusion 9b etc. is lower than bottom 9a, can suppress body fluid along extrusion bar groove 7 excess flow.Shown in Fig. 2 (c), in the 9a of the bottom of second portion 9, the fiber of dough sheet 2 is in contact with one another with at least a portion of the fiber that forms outer dough sheet 3 in forming, and forms they molten melt-coating part W that forms that applies.In the part that is formed with second portion 9,,, when the wearing of sanitary pad 1, can prevent that core from moving, twisting with respect to outer dough sheet 3 so can limit moving of core 4 because inside and outside dough sheet 2,3 is engaged through melt-coating part W.In addition, size t3 is zero in inside and outside dough sheet 2,3 mutual molten parts of applying, and therefore, above-mentioned value is the meansigma methods of the size of melt-coating part branch and non-melt-coating part branch.In addition,, comprise under thermoplastic synthetic fiber's the situation, apply owing to these fibers are molten each other and constitutes mesh at it as core 4, so, core 4 mobile that can further limit Time of Fluff Slurry etc.
In the part that is formed with above-mentioned extrusion bar groove 7, be not formed with its of extrusion bar groove 7 around compare, uprise thereby core 4 is compressed density.Therefore, the body fluid of dough sheet 2 is easy to flow in the highdensity extrusion bar groove 7 of core 4 in being excreted to, and can rapidly the bottom surface side of body fluid to core 4 be shifted.
In addition, in the part that is formed with second portion 9, core 4 is pushed around it, and therefore around second portion 9, the density of core 4 becomes higher.Therefore, body fluid is absorbed rapidly to core 4.That is, the body fluid of interior dough sheet 2 can flow with the mode of concentrating to extrusion bar groove 7, and, diffusion around it in second portion 9.Therefore, can make liquid rapidly away from health, and remain on this away from the position on.
In second portion 9, interior dough sheet 2 applies with the part of outer dough sheet 3 is molten each other, but at the sheet 2 of melt-coating part W part in addition, have a spot of core between 3.Therefore, 9a also can absorb body fluids in the bottom surface of second portion 9, and, can make body fluid further to the core diffusion of its peripheral region, therefore, can prevent that body fluid from accumulating in second portion 9.Especially core 4 comprises under the situation of hydrophobic fibre, can promote capillarity, can not stop flowing of body fluid at bottom surface 9a, and body fluid is spread along fiber.And, stride adjacent bottom 9a at these fibers and under the situation about existing, can promote the diffusion of body fluid further.
Through first and the mode of the extrusion bar groove 7 that forms of second portion 8,9, form the grid style to intersect with respect to virtual vertical centrage P-P and virtual horizontal centrage Q-Q respectively.That is, not parallel with virtual vertical centrage P-P and virtual horizontal centrage Q-Q.When the wearing of sanitary pad 1; Laterally push to its inboard through groin the both sides of X; Therefore under the situation of extrusion bar groove 7 and the parallel formation of virtual vertical centrage P-P, sanitary pad 1 is easy to bending along extrusion bar groove 7, understand and wearer's skin between form the gap.In addition, under the situation of compressor bar groove 7 and the parallel formation of virtual horizontal centrage Q-Q, with respect to the pushing of groin of above-mentioned that kind and rigidity becomes big, can bring sticky feeling.But, parallel through not in the sanitary pad 1 of this embodiment with virtual vertical centrage P-P and virtual horizontal centrage Q-Q, can closely contact with the wearer, and make adherent feeling become good.
In addition, be formed with the first-class temporary fastening device of underwear that is used for sanitary pad 1 is temporarily anchored to the wearer, also can it be covered through emulsion sheet in the garment side of leakage prevention sheet 5.Hot-melt adhesive etc. can be used as temporary fastening device, plastic sheeting etc. can be used as emulsion sheet.
Fig. 3 representes the sanitary pad's 1 of above-mentioned that kind the summary of manufacturing installation 10.In this manufacturing installation 10, can make sanitary pad 1 through first～the 5th operation.In first operation; On the interior veil sheet (web) 12 of the interior dough sheet 2 that is used to form the sanitary pad; Along operating direction MD with the range upon range of core 14 that is useful on the core 4 that forms sanitary pad 1 of constant interval, and, range upon range of outer veil sheet 13; Should carry along operating direction MD through carrying roller 16 by outer veil sheet, and form sanitary pad 1 outer dough sheet 3.Core 14 is not hand over network, molten applying or hot melt adhesion etc. each other through special means, but cascades through not shown range upon range of mechanism, in addition, and not by other coverings such as sheet material.At interior veil sheet 12, core 14, outer veil sheet 13 each other, be coated with not shown hot-melt adhesive.
In second operation, on the duplexer of inside and outside veil sheet 12,13 and core 14, form mechanism 17 through groove and form extrusion bar groove 7.Groove forms the backing roll 21 that mechanism 17 has knurling rolls 20 and and surface smoothing relative with it.Knurling rolls 20 and backing roll 21 are heated to about 80～140 ℃ through not shown heater, are preferably to be heated to about 90～130 ℃.In this embodiment, be heated to about 115～120 ℃.Clamping has the duplexer of the inside and outside veil sheet 12,13 of core 14 between these knurling rolls 20 and backing roll 21, to pass through.Embossed roller 20 of these duplexers and backing roll 21 are the pressure of about 0.25MPa with the pressure of about 0.10～0.5MPa, the exert pressure of preferred about 0.15～0.40MPa in this embodiment.In addition, above-mentioned pressure is the force value with respect to the roll shaft of wide 175mm.
Fig. 4 is the figure of pattern of expression knurling rolls 20, and Fig. 5 (a) is the enlarged drawing in zone shown in the V of knurling rolls 20 of Fig. 4, and Fig. 5 (b) is the VB-VB line cutaway view of Fig. 5 (a).On the surperficial 20a of knurling rolls 20, be formed with a plurality of raised lines 40.Raised line 40 is in the whole surperficial 20a of knurling rolls 20, and with from operating direction MD and form a plurality ofly with mode that crisscross CD that it intersects leaves, and integral body forms the grid style.Raised line 40 has from outstanding first protuberance 18 of the surperficial 20a of knurling rolls 20 with from the second further outstanding raised lines 19 of first protuberance 18.
As shown in Figure 3, in the 3rd operation, carry the anti-sheet 15 of slipping through the net that is used to form leakage prevention sheet 5 through carrying roller 16, and it is bonded on the outer veil sheet 13.The anti-sheet 15 of slipping through the net is supplied on outer veil sheet 13 and faces core 14 lamination surface opposition sides.On the anti-sheet 15 of slipping through the net, be coated with not shown hot-melt adhesive, can leakage prevention sheet 15 be joined on the outer veil sheet 13.
In the 4th operation, through sealing mechanism 23 interior veil sheet 12, outer veil sheet 13 and the anti-sheet 15 of slipping through the net are bonded with each other, form sanitary pad 1 sealing 6.Sealing mechanism 23 comprises: the sealed roller 25 with jut 24; With the backing roll 26 relative with it, this two roller 25,26 is heated to about 80～140 ℃ through not shown heater.Jut 24 to be forming with corresponding mode around the core 14, and interior veil sheet 12, outer veil sheet 13, the anti-sheet 15 of slipping through the net are heated each other, pressurizes and engage, thus formation sealing 6.
In the 5th operation,, the cascade net sheet of interior veil sheet 12, core 14, outer veil sheet 13, the anti-sheet 15 of slipping through the net is located to cut off around sealing 6 through shut-off mechanism 27.Shut-off mechanism 27 has the cut-out roller 29 that is formed with blade 28 and the backing roll 30 relative with it, through at these rollers 29, clamping duplexer between 30, and the cascade net sheet is cut off, thereby can access sanitary pad as shown in Figure 11.
In above-mentioned manufacturing approach, do not use lining paper emulsion sheets such as (tissue paper) to cover core 14.Therefore, compare with covered situation, core 14 is easy to around it, pushed through second protuberance 19 of knurling rolls.And core 14 through the next friendship each other of special means network, molten deposited perhaps hot melt adhesion etc., therefore, was not easier to pushed by second protuberance 19 before forming the bar grooves 7 of extruding through groove formation mechanism 17.And cover plate does not cover because core 14 is covered, so in the gap of core 14, the fiber of inside and outside veil sheet 12,13 is easy to be in contact with one another, can easily their molten applying be formed melt-coating part.Through inside and outside veil sheet 12,13 hot melts are applied, even can make core 14 also be not easy to peel off having absorbed under the situation of body fluid etc.
The cascade net sheet of interior veil sheet 12, outer veil sheet 13, core 14 forms mechanism 17 through groove makes its integral body be compressed to thickness direction; And further compress through sealing mechanism 23; Because; Not only make the part that is formed with extrusion bar groove 7, and in its integral body, make the size decreases of thickness direction, its density is uprised.Particularly, the size of the thickness direction of the cascade net sheet before the compression is about 12.0～16.0mm, and the size after the compression is about 1.4～1.6mm.These sizes are that the part that is not formed with extrusion bar groove 7 is measured and got.In addition, after compression, the density of the core of locating around the extrusion bar groove 7 can be about 0.08～0.30g/cm
3, be preferably about 0.10～0.25g/cm
3
Above-mentionedly form mechanism 17 and sealing mechanism 23 through groove suchly, core 14 is compressed at thickness direction, its density is uprised, thus, can promote body fluid absorption.Especially, at extrusion bar groove 7 places, it is higher that density becomes, thus, can be in extrusion bar groove 7 absorb body fluids promptly.
Interior veil sheet 12, core 14 and outside be coated with hot-melt adhesive between the veil sheet 13, therefore, form mechanism 17 through warmed-up groove, make these hot-melt adhesive fusions, thereby can flow between the core 14.Like this, can strengthen through hot-melt adhesive in the engaging of veil sheet 12 and core 14, outer veil sheet 13 engage with core 14.Therefore, formed sanitary pad 1 can make core 14 be not easy to move with respect to inside and outside dough sheet 2,3, is not easy distortion.
Interior veil sheet 12 is fabric nonwoven cloths such as hot-wind nonwoven cloth, some bonded nonwoven, spun-bonded non-woven fabrics, comprises the short fiber that average fiber length is about 20～60mm.Form through groove mechanism 17 push in during veil sheet 12, short fiber from other fibers separately is easy to contact with outer veil sheet 13, and is deposited thereby the fiber that is easy to and is somebody's turn to do outer veil sheet 13 carries out hot melt.
In the manufacturing approach of this embodiment, the compression that the formation of the bar groove 7 of can side by side extruding and product are whole.That is, before forming extrusion bar groove 7, do not need to compress in advance core 14, therefore, can with its correspondingly with simplified working procedures.In addition, before forming extrusion bar groove 7, do not need the core 14 of extruding in advance, therefore, when forming extrusion bar groove 7, core 14 is easy to move, and can easily push these cores 14 through second protuberance 19.In addition, also can before the cut-out of the 5th operation, on the anti-sheet 15 of slipping through the net, apply temporary fixed bonding agent, and the range upon range of net sheet of peeling off.
Fig. 6 representes to be formed on other modes of the extrusion bar groove 7 on the sanitary pad 1.As shown in the figure, for example also can form figuratum recess 31 at the cross part of extrusion bar groove 7.The length dimension of the thickness direction of recess 31 and first 8 are roughly the same.Like this, through forming recess 31, can bring visual enjoyment to the wearer.Through forming recess 31 gross area of extrusion bar groove 7 is enlarged.In addition, through on the extended line of extrusion bar groove 7, forming recess 31, can also prevent that sanitary pad 1 is along 7 bendings of extrusion bar groove.In addition, recess 31 both can form with extrusion bar groove 7 overlappingly, also can form discretely with it.
Fig. 7 representes to be formed on other modes of the extrusion bar groove 7 on the sanitary pad 1.Swash shape as shown in the figure, as for example also can extrusion bar groove 7 to be formed along vertical Y.Under the situation that becomes such swash shape, also can form first and second portion.In addition,, can make extrusion bar groove 7 overlapping with virtual vertical centrage P-P and virtual horizontal centrage Q-Q hardly, can prevent that sanitary pad 1 is along these centrage bendings through forming swash shape.
Also can on the extrusion bar groove 7 of above-mentioned swash shape, form recess 31.In addition, extrusion bar groove 7 of the present invention can vertical Y of sanitary pad 1 and laterally the central part office of X make its area more regional greatly than other.Through increase the area of extrusion bar groove 7 in the central part office, can make the rigidity raising of the middle body of distortion the most easily, thereby can prevent distortion.Like this, the area occupation ratio through in each zone that changes extrusion bar groove 7 can change rigidity partly.
The shape of first 8, second portion 9 and the recess 31 of extrusion bar groove 7 and size etc. can suitably change, and are not limited to these embodiments.In addition, in each component part that constitutes sanitary pad 1, except the material that this description is put down in writing, can unrestrictedly use normally used in such field, various material known.In description of the present invention and claims, term " first " and " second " are used to distinguish likewise key element, position etc. merely.
Description of reference numerals
1 sanitary pad (throw-away body fluid treating article)
Dough sheet in 2
3 outer dough sheets
4 cores
6 sealings
7 extrusion bar grooves
8 firsts
9 second portions
Veil sheet in 12 (the first net sheet)
13 outer veil sheets (the second net sheet)
14 cores
17 grooves form mechanism
18 first protuberances
19 second protuberances
20 knurling rolls
21 backing rolls
23 sealing mechanisms
27 shut-off mechanisms
X is horizontal
Y is vertical
Claims (9)
1. throw-away body fluid treating article; Have vertical and horizontal; Comprise bodyside and opposition side thereof, at the interior dough sheet of the liquid permeability of said bodyside, at the outer dough sheet of said opposition side and the core of the absorbency between these sheets; In said, be formed with a plurality of extrusion bar grooves on the dough sheet, it is characterized in that
Dough sheet and said outer dough sheet are formed by fabric nonwoven cloth in said,
Said extrusion bar groove the said of dough sheet in said vertically with in the said horizontal Zone Full forms, and said extrusion bar groove comprises: from the first of said interior dough sheet dough sheet formation outside said; With from said first dough sheet and second portion of forming with the mode that links to each other with said first outside said,
At said second portion, at least a portion of at least a portion of the fiber of said interior dough sheet and the fiber of said outer dough sheet is molten each other applies.
2. throw-away body fluid treating article according to claim 1 is characterized in that, said interior dough sheet and said outer dough sheet are formed by the fabric nonwoven cloth that contains thermoplasticity synthetic resin.
3. throw-away body fluid treating article according to claim 1 and 2 is characterized in that, said second portion vertically is formed with a plurality of with said horizontal any at least side along said in said extrusion bar groove discontinuously side by side.
4. according to each described throw-away body fluid treating article in the claim 1 to 3; It is characterized in that said extrusion bar groove is with respect to tilting with the binary virtual vertical centrage of said horizontal length dimension and with the binary virtual horizontal centrage of said length dimension longitudinally.
5. according to each described throw-away body fluid treating article in the claim 1 to 4, it is characterized in that said extrusion bar groove also has recess, any side on the part of said recess and said first and the extended line of said extrusion bar groove is overlapping.
6. according to each described throw-away body fluid treating article in the claim 1 to 5, it is characterized in that the quality of the per unit area of said core is 70～350g/m
2
7. according to each described throw-away body fluid treating article in the claim 1 to 6, it is characterized in that, said extrusion bar groove be said in dough sheet area 10～30%.
8. according to each described throw-away body fluid treating article in the claim 1 to 7, it is characterized in that said interior dough sheet contains short fiber.
9. manufacturing approach that on the cascade net sheet, forms a plurality of extrusion bar grooves, said cascade net sheet comprises: the first net sheet and second by the fabric nonwoven cloth that contains thermoplasticity synthetic resin forms is netted sheet; And the core that is configured in the absorbency between these net sheets, said manufacturing approach is characterised in that, comprising:
Operation at said first net said core of sheet laminated and the said second net sheet; Form mechanism through groove, the cascade net sheet that is formed by the said first net sheet, the second net sheet and core is compressed, and form the operation of said extrusion bar groove; Through sealing mechanism, will be said around said core the first net sheet and second net that sheet is bonded with each other and the operation that forms sealing; With through shut-off mechanism, will the said first net sheet around said sealing and the operation of the second net sheet cut-out,
Said groove forms mechanism to have: be formed with first protuberance and from the knurling rolls of the second outstanding protuberance of said first protuberance; Backing roll with and surface smoothing relative with said knurling rolls; Through said knurling rolls and said backing roll said cascade net sheet is pressurizeed, heats, and at least a portion hot melt of the fiber of the said first net sheet and the second net sheet is applied in the pairing position of said second protuberance.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-068957 | 2010-03-24 | ||
| JP2010068957A JP5665338B2 (en) | 2010-03-24 | 2010-03-24 | Body fluid treatment article and method for producing the same |
| PCT/JP2011/057232 WO2011118725A1 (en) | 2010-03-24 | 2011-03-24 | Body fluid treatment article and method for manufacturing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102821723A true CN102821723A (en) | 2012-12-12 |
Family
ID=44673270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011800153980A Pending CN102821723A (en) | 2010-03-24 | 2011-03-24 | Body fluid treatment article and method for manufacturing same |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5665338B2 (en) |
| CN (1) | CN102821723A (en) |
| MY (1) | MY161444A (en) |
| WO (1) | WO2011118725A1 (en) |
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| CN107072841B (en) * | 2014-10-03 | 2020-05-15 | 王子控股株式会社 | Absorbent article |
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| TWI660719B (en) * | 2014-12-10 | 2019-06-01 | 王子控股股份有限公司 | Absorbent article |
| TWI677326B (en) * | 2014-12-10 | 2019-11-21 | 日商王子控股股份有限公司 | Absorbent article |
| CN106999308B (en) * | 2014-12-10 | 2020-05-15 | 王子控股株式会社 | Absorbent article |
| CN107530213A (en) * | 2015-05-15 | 2018-01-02 | 王子控股株式会社 | Absorbent commodity, its manufacture device and manufacture method |
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| CN110461290A (en) * | 2017-06-16 | 2019-11-15 | 花王株式会社 | Absorbent commodity |
| CN110461290B (en) * | 2017-06-16 | 2021-12-28 | 花王株式会社 | Absorbent article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5665338B2 (en) | 2015-02-04 |
| JP2011200337A (en) | 2011-10-13 |
| WO2011118725A1 (en) | 2011-09-29 |
| MY161444A (en) | 2017-04-14 |
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