CN1823694B - Absorbent article - Google Patents
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- CN1823694B CN1823694B CN200610009537XA CN200610009537A CN1823694B CN 1823694 B CN1823694 B CN 1823694B CN 200610009537X A CN200610009537X A CN 200610009537XA CN 200610009537 A CN200610009537 A CN 200610009537A CN 1823694 B CN1823694 B CN 1823694B
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- absorber
- multilamellar
- groove
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Abstract
The invention is a absorbent article 1 equipped with an absorber 4 which is long in the same direction of the anteroposterior direction at the wearing time, the absorber 4 has the multilayered section M with the more number of layers than the other portion at a part in the longitudinal direction, when a virtual straight line X-X which intersects the absorber 4 in the cross direction at a back end position Ma of the multilayered section M is imagined, grooves 7A and 7B are formed at both side sections of the absorber 4 to cover from the front to the back of the virtual straight line X-X and to extend for 15 mm or more to the back from the virtual straight line X-X, and when the absorbent article 1 is seen from the front to the back, the number of the grooves 7 formed at both the side sections of the absorber 4 does not increase between the virtual straight line X-X and the position 15 mm back from the virtual straight line X-X.
Description
Invention field
The present invention relates to absorbent commodities such as sanitary napkin, underwear back boxing (sanitary pad), incontinence pad.
Background technology
In absorbent commodities such as sanitary napkin, for by increasing absorbtivity, improving fit and wait and improve anti-leakage, known have the central part (burst bottom) that makes absorber to be thicker than other parts, or make it side-prominent to skin contact one.
For example open in the clear 58-13228 communique in fact in Japanese utility model application, a kind of sanitary napkin has been proposed, it possesses by the bottom and absorbs material and from front end region the width setup that the width both ends in central part zone inwardly folded into and will fold into part is become the top absorption material formed absorber also narrower than the width of this bottom absorption material, and the central part zone on the width is formed thick-layer, the rearward end zone is formed thin layer.
In addition, in Japanese Patent Application Laid-Open 2004-181084 communique and Japanese Patent Application Laid-Open 2004-181107 communique, put down in writing the absorbent commodity that on the both sides of the length direction of absorbent commodity, is formed with groove or line effect.
As Japanese utility model application real open in the clear 58-13228 communique disclosed, when dressing sanitary towel, sanitary towel in the past is on its skin contact one side, occur easily by the caused gauffer of the poor rigidity of absorber at above-mentioned central part and the portion boundary part that do not form thick-layer, therefore, the easy gap that forms between the skin of this boundary member and its contiguous skin contact of locating and wearer in sanitary towel, Excretas such as menses are detained at this gap location, and the Excreta of delay has at h.d. etc. and leaks to outside danger.In addition, because the gap between gauffer and the wearer is dressed comfort and also can be descended.
Summary of the invention
Absorbent commodity of the present invention possesses an absorber, and the fore-and-aft direction of the length direction of this absorber when dressing is identical.Above-mentioned absorber has the multilamellar portion of Duoing than the other parts number of plies or the thick-layer portion thicker than other parts on the part of length direction.When hypothesis has a back-end location in above-mentioned multilamellar portion or above-mentioned thick-layer portion to be in the imaginary line that crosses above-mentioned absorber on the width, on the both sides of above-mentioned absorber, be formed with the front and back of running through above-mentioned imaginary line respectively and from this imaginary line extend back 15mm or above groove.When observing above-mentioned absorbent article backward, do not increase between the position of 15mm backward at above-mentioned imaginary line with from this imaginary line at the bar number of the formed groove in the both sides of above-mentioned absorber in the past.
Description of drawings
Below with reference to accompanying drawings the present invention is carried out more specific description.Among the accompanying drawing:
Fig. 1 is from the plane graph of face sheet unilateral observation during as the sanitary napkin of one embodiment of the present invention.
Fig. 2 is the schematic cross section along the section of the X-X line of Fig. 1.
Fig. 3 is the key diagram of embodiment further groove and the plane graph of absorber.
Fig. 4 (a)～Fig. 4 (d) is the key diagram of embodiment or comparative example further groove and the plane graph of absorber.
The specific embodiment
Following according to its preferred embodiment, the present invention will be described with reference to accompanying drawing.
As depicted in figs. 1 and 2, the sanitary napkin 1 of present embodiment possesses the face sheet 2 of liquid permeability, the back-sheet 3 of liquid impermeability and the absorber 4 of the liquid retainability between this two sheet material 2,3.In addition, on the both sides on absorbent commodity (sanitary towel) length direction of skin contact one side of this sanitary towel 1, respectively along the length direction of this absorber 4 and dispose a counter-lateral quadrents sheet material 5,5 of the roughly total length that runs through its length direction.So-called in this description " skin contact one side " be meant in the both sides (face) at each member, when dressing and skin one side that side (face) in opposite directions of wearer.In addition, below use the statement of " non-skin contact one side " sometimes, this is meant in the both sides (face) at each member, during wearing and the skin opposition side of wearer that side (face) in opposite directions.
Sanitary napkin 1 has when dressing facing to opposed A of excretory portion of wearer excretory portion, the front part B that extends in the front and back of opposed A of this excretory portion and back quadrate part C.When dressing sanitary napkin 1, front part B and back quadrate part C are configured in preceding (abdomen) side of wearer and back (back of the body) side of wearer respectively.
As depicted in figs. 1 and 2, face sheet 2 covers the Zone Full of skin contact one side of absorber 4.Back-sheet 3 covers the Zone Full of non-skin contact one side of absorber 4, and having respectively the part of stretching out to the outside from the both sides of the edge of the napkin width direction of this absorber 4, this extension forms flank 6 respectively with sidepiece sheet material 5 on the both sides of the width of sanitary towel 1.Flank 6 stretches out to the outside respectively significantly at opposed A of excretory portion and back quadrate part C, has formed a pair of alar part 61,61 and a pair of rear wing 62,62.Rear wing 62 is configured in when dressing on the inner surface (skin opposite face) of clothes such as underwear.
Separate application binding agent on non-skin contact one side of the central part of the width of sheet material 3 and a pair of this alar part 61,61 overleaf, thus be formed for sanitary towel 1 is fixed on fixed part (not shown) on underwear etc.
As shown in Figure 1, the identical shape of fore-and-aft direction the when absorber 4 in the sanitary towel 1 of present embodiment has length direction and dresses has the M of multilamellar portion of Duoing than the other parts number of plies on the part of its length direction.The oblique line portion that is dotted line among Fig. 1 is the M of multilamellar portion.The M of multilamellar portion also forms the part (specifically being central part) of absorber on the width of absorber 4.
As depicted in figs. 1 and 2, absorber 4 is to be made of main absorber 41 that is configured to back quadrate part C from front part B and near the auxiliary absorber 42 that only disposes opposed A of excretory portion always.
As shown in Figure 2, main absorber 41 is made of bottom absorber 411 and the top absorber 412 that disposes on skin contact one side of this bottom absorber 411.Bottom absorber 411 and top absorber 412 all form in fact vertically long overlooking and are rectangular-shaped shape.
As depicted in figs. 1 and 2, auxiliary absorber 42 is absorbers littler than main absorber 41, and forms the shape of vertical length, and is configured between the bottom absorber 411 and top absorber 412 among opposed A of excretory portion.
By the auxiliary absorber 42 of configuration on the part of main absorber 41, can be easily and increase the absorptive capacity of the part of absorber 4 effectively.
In addition, if auxiliary absorber 42 is sandwiched between bottom absorber 411 and the top absorber 412, near the intersection of then auxiliary absorber 42 existing parts and its Outboard Sections ladder difference can not become big, and roughly near the center, therefore be difficult for taking place twisted in the center of gravity on the thickness direction.
As shown in Figure 2, auxiliary absorber 42 is folded and is formed by an absorbent sheet, specifically, on the absorbent sheet of overlooking to rectangle or square shape, roll over to back-sheet 3 one rollovers both sides on the direction that will be consistent with the length direction of sanitary towel, and the marginal portion of this turnover part is overlapped at the central part of the width of absorbent sheet.
In this absorber 4, not having the position of auxiliary absorber 42 between bottom absorber 411 and the top absorber 412 is 2 layers of structure, relative therewith, the position that has auxiliary absorber 42 between bottom absorber 411 and the top absorber 412 is 4 layers of structure, and this position that auxiliary absorber 42 exists becomes the M of multilamellar portion.In addition, bottom absorber 411 and top absorber 412 can be bonded with each other on the position that does not have auxiliary absorber 42, can not engage yet, on the position (multilamellar portion) that auxiliary absorber 42 exists, also can engage respectively between bottom absorber 411 and the auxiliary absorber 42 and between top absorber 412 and the auxiliary absorber 42, also can not engage.
As depicted in figs. 1 and 2, in the absorber 4 of present embodiment, be formed with the groove 7 that roughly on the length direction of sanitary towel 1, extends on the both sides of its length direction respectively.Each groove 7 that forms in the mode of roughly extending in the longitudinal direction respectively about length direction connects by roughly forming circular- arc connecting portion 7C, 7D in their end, front and back.As connecting portion 7C, 7D, roughly the part of extending on the width of sanitary towel 1 is not included in the part of groove 7 and groove 7A described later, 7B.Roughly in the boundary of the part of extending on the length direction of absorbent commodity and the part of roughly extending on the width at absorbent commodity, be the CL of length direction Central Line or its parallel lines with respect to sanitary towel's (absorbent commodity) 1, by the formed angle θ of tangent line is the part S (with reference to Fig. 1, measuring tangent line in the centre position of groove outer lines and inner wire) of 60 degree.Each groove 7 is formed on the part beyond the M of multilamellar portion in the absorber 4.More particularly, groove 7 clips the M of multilamellar portion of absorber 4 and forms on its two outside.
As depicted in figs. 1 and 2, when hypothesis has a back-end location Ma at the M of multilamellar portion to be in the imaginary line X-X that crosses absorber 4 on the width, be respectively formed at the front and back that groove 7 on the both sides of absorber 4 runs through this imaginary line X-X respectively.That is, each groove 7 crosses imaginary line X-X on the fore-and-aft direction of absorber 4.
As depicted in figs. 1 and 2, each groove 7 in the present embodiment has formed 2 groove 7A, 7B on the position of crossing imaginary line X-X.And, these grooves 7A, 7B respectively from this imaginary line X-X extend back 15mm or more than.Promptly, in the present embodiment, run through the front and back of imaginary line X-X and,, form several in the mode of roughly on the length direction of sanitary towel's (absorbent commodity), extending respectively respectively in the both sides of absorber from this imaginary line X-X extend back 15mm or above groove.In addition, the Y-Y line among Fig. 1 be with locational 2nd imaginary line of imaginary line X-X apart from 15mm.
From preventing that groove 7A, 7B more preferably rearward extend 15～150mm from imaginary line X-X by the viewpoint of the caused gauffer of poor rigidity between M of multilamellar portion and the remainder (particularly being positioned at the part at multilamellar portion rear).Consider that from same viewpoint groove 7A, 7B preferably are at least 5mm, more preferably 1～10mm from the length L 1 (with reference to Fig. 3) that imaginary line X-X forwards extends.
In addition, in this sanitary towel 1, observed sanitary towel's (absorbent commodity) backward at 1 o'clock in the past, the bar number of the groove that roughly forms in the both sides of absorber 4 respectively along the length direction of sanitary towel 1 (absorbent commodity), imaginary line X-X and from this imaginary line X-X backward between the position of 15mm (position of the 2nd imaginary line Y-Y line) (in the zone of representing with P Fig. 1) do not increase.The groove that extends along the length direction of sanitary towel 1 (absorbent commodity) roughly, its number does not preferably increase in imaginary line X-X Zone Full backward.
In the sanitary towel 1 of present embodiment, on the part of the length direction of absorber 4, has the M of multilamellar portion.This structure has the following advantages: the absorbability (absorptive capacity) that improves the position that needs high absorbent capacity especially under the situation of not damaging whole wearing comfort, perhaps improve the fit between the fluid drainage portion with wearer, it is twisted etc. perhaps to be difficult for generation by the dimensionally stableization that makes the M of multilamellar portion.On the contrary, when groove 7A, 7B are not set, because the poor rigidity between relative little other positions with rigidity of the high M of multilamellar portion of rigidity, folding or gauffer of absorber 4 easily takes place near absorber 4 (in zone of for example representing with P among Fig. 1) the rear end Ma of the M of multilamellar portion.
Sanitary towel 1 according to present embodiment, by groove 7A, 7B are set in a manner mentioned above, can relax owing to the poor rigidity that the M of multilamellar portion caused is set in absorber 4 and then can relaxes poor rigidity on the length direction in sanitary towel, and fit and anti-leakage can improve sanitary towel's wearer and dress the time.
As the sanitary towel 1 of present embodiment, run through before and after the imaginary line X-X and from this imaginary line extend back 15mm or above groove, then this effect can further be proved effective, and is preferred therefore if on the both sides of absorber 4, form many respectively.But also can on the both sides of absorbent commodity, only form 1 groove among the present invention respectively.
As shown in Figure 1, in the sanitary towel 1 of present embodiment, run through before and after the imaginary line X-X and from extend back a groove 7A 15mm or above groove 7A, the 7B of this imaginary line X-X, along with extend at the rear towards sanitary towel's (absorbent commodity) 1, it tilts near the CL of Central Line of sanitary towel's (absorbent commodity) length direction.In absorbent commodity of the present invention, when having many grooves, then all or part of groove tilts to such direction, if only have a groove, then this groove tilts to such direction, owing to can further relax by the poor rigidity that the M of multilamellar portion is produced is set in absorber 4, so this method is preferred.
In inclined notches formed 7A, the angle θ 1 (with reference to Fig. 1) that forms between the CL of Central Line of the tangent line at place, imaginary line X-X cross point and the length direction of sanitary towel's (absorbent commodity) is preferably 5～60 degree, more preferably 15～45 degree.
Consider from the viewpoint of can be economic or giving this performance to the part that requires high absorbent capacity and/or fit effectively, and viewpoint consideration from effect of the present invention is significantly proved effective, the back-end location of the M of multilamellar portion of absorbent commodity of the present invention be preferably placed at from the front end of absorber 4 backward the position of 100mm in the scope of the position of 200mm backward, be preferably placed at especially from the front end of absorber 4 backward the position of 120mm in the scope of the position of 170mm backward.In addition, consider from same insight, as above-mentioned sanitary towel 1, have when dressing when thereby non-skin contact one rollover folding is fixed on alar part on the underwear, the optimum seeking site of the rear end Ma of the M of multilamellar portion be positioned at from the back-end location 61a of this flank section 61 to the position of front distance 20mm to from this back-end location 61a backward apart from the scope of the position of 60mm, be preferably placed at especially from the back-end location of flank section 61 to the position of front distance 10mm to from this back-end location 61a backward apart from the scope the position of 50mm in.
In absorbent commodity of the present invention, preferably in the scope of 170～370mm, the width of absorber (length on the napkin width direction) is preferably in the scope of 60～90mm for the total length of absorber 4 (length on sanitary towel's length direction).In addition, preferably in the scope of 70～200mm, width (length on the napkin width direction) is preferably in the scope of 30～50mm for the total length of the M of multilamellar portion (length on sanitary towel's length direction).The total length of absorber 4 and the M of multilamellar portion is than preferably in (absorber total length): in the scope of (multilamellar portion total length)=1: 0.18～1: 0.54, the width of absorber 4 and the M of multilamellar portion is than preferably in (absorber overall with): in the scope of (multilamellar portion overall with)=1: 0.3～1: 0.84.
In absorber 4, the mass area ratio of the M of multilamellar portion is preferably 100～500g/m
2, the mass area ratio of part is preferably 80～240g/m beyond the M of multilamellar portion
2, both mass area ratios are preferably 1.1～6.3 than (part beyond the M/ of the multilamellar portion multilamellar portion), are preferably 1.5～3 especially.In addition, the thickness of the M of multilamellar portion is preferably 0.5mm～5mm, and the thickness of part is preferably 0.5mm～3mm beyond the M of multilamellar portion.In addition, in absorber 4, the rigidity of the M of multilamellar portion is preferably 30～50cN, rigidity at the back-end location Ma of the M of multilamellar portion (being also referred to as the X-X part) is preferably 15～40cN, both rigidity are 1.0～1.5 than (M/X-X of multilamellar portion part), are preferably 1.0～1.4, are preferably 1.1～1.3 especially.Both poor rigidity (rigidity of the rigidity of the M of multilamellar portion and X-X part poor) are preferably 10cN or following, are preferably 8cN or following especially.Prevent that from the gauffer of further raising absorber performance is to prevent twisted viewpoint consideration, on rigidity, there is not difference between the position of preferred X-X part and its rear 15mm (below be also referred to as the Y-Y part), the difference of rigidity is preferably 3cN or following, more preferably 2cN or following.
Here said rigidity can followingly be measured.
Use is suitable for the Handle-O-Meter testing machine (stiffness test machine) of the smart device making of the Daiei science manufacturing of the stiffness algoscopy of regulation among the JIS L1096 (general fabrics test method), at slit separation on the sample bench that is adjusted into 30mm, horizontal positioned test film (not being fixed on the sample bench), make the mensuration position (middle position of the absorber multilamellar M of portion (the Z-Z line position of Fig. 1 of this test film, below be also referred to as the Z-Z part), X-X part or Y-Y part) near the center between slit, and make the absorber length direction of this test film consistent with direction perpendicular to slit, the blade that drops to the position (upper/lower positions) of below 8mm from the sample bench surface modulation is descended with constant speed 200mm/min from the top of test film, read the shown peak (cN) of indicating gage (Road test meter) when the length direction of slit is pushed this test film.Measure 5 times, calculate its meansigma methods as values of stiffness.
Take out absorber from absorbent commodity, avoid absorber to be damaged during taking-up, obtaining wide both ends for 75mm, long length direction for 270mm is the sample of semi-circular shape, with this as test film.At this moment, preferably get rid of absorber material in addition as far as possible, but, part face sheet or back-sheet can be arranged or be used to engage the adhesive attachment of face sheet and back-sheet at absorber in order not damage absorber.When the width of test film not simultaneously, values of stiffness is scaled the 75mm width adjusts.In addition, if length 50mm (each 10mm of slit separation 30mm+ two ends) or more than, just can measure (do not have conversion necessity).
The thickness measuring of absorber is the same with the sample that rigidity is measured usefulness, the absorber that use is taken out from absorbent commodity, avoid absorber to be damaged during taking-up, during test, do not contain beyond the absorbers such as face sheet, back-sheet and binding agent the part of material in the selective absorber and measure.
The thickness gauge (PEACOCKUPRIGHT DIAL GUAGE No.207) that Determination of thickness uses Co., Ltd. of the rugged making of tail institute to make is at 2.5g/cm
2Load under measure.5 samples are measured, averaged as thickness.
Material as sanitary towel's 1 each several part that constitutes present embodiment can use normally used material in this technical field, and there is no particular limitation.
For example, as above-mentioned face sheet 2, can use the non-woven fabrics and the perforated film of possess hydrophilic property and liquid permeability.As above-mentioned back-sheet 3, can use the material and the waterproof material of liquid impermeability.As the material of liquid impermeability, can use the stacking material of resin film, resin film and non-woven fabrics etc. etc.; As waterproof material, can use the compound nonwoven cloth, spun bond nonwoven fabric, hot sticky non-woven fabrics, hot blast method non-woven fabrics of the multi-ply construction that spun bond nonwoven fabric, melt-blown nonwoven fabric and spun bond nonwoven fabric etc. form etc.As above-mentioned sidepiece sheet material 5, can use the material same with above-mentioned back-sheet 3.
As above-mentioned main absorber 41, can use material (the composite fibre aggregation of water absorbent polymer and fibrous material) that the fiber assembly that formed by paper pulp fiber etc. or fiber assembly and water absorbent polymer form etc.As water absorbent polymer, for example can list sodium polyacrylate, (acrylic acid-ethylene alcohol) copolymer, the crosslinked body of sodium polyacrylate, (starch-acrylic acid) graft copolymer, (isobutene .-maleic anhydride) copolymer and saponified, poly-aspartate thereof etc.Fiber as constituting main absorber 41 can use for example hydrophilic fibres such as paper pulp fiber, rayon fiber, cotton fiber, cellulose acetate, polyolefin series fibers such as polyethylene, polypropylene, condensation series fibers such as polyester, polyamide etc.Water absorbent polymer and fiber can use a kind of respectively, or make up two or more respectively and use.
As above-mentioned auxiliary absorber 42 (above-mentioned absorbent sheet), can use the material same with above-mentioned main absorber 41, between 2 layers of non-woven fabrics or paper, be supported with the absorbent sheet of absorbable polymer or paper pulp, or the absorbent sheet of putting down in writing in the flat 8-246395 communique of Japanese Patent Application Laid-Open etc.
More than an embodiment of the invention are illustrated, but the present invention is not limited to above-mentioned embodiment, can do various changes without departing from the spirit and scope of the present invention.
For example, in the above-described embodiment, thereby auxiliary absorber 42 is configured in and forms the multilamellar M of portion between bottom absorber 411 and the top absorber 412, but also can will assist absorber 42 to be configured in non-skin contact one side (between bottom absorber 411 and the back-sheet 3) of bottom absorber 411 or skin contact one side (between top absorber 412 and the face sheet 2) of top absorber 412, thereby form the multilamellar M of portion.
In addition, the absorber among the present invention can have the thick-layer portion thicker than other parts on the part of length direction.
For example, can not form multilamellar portion and absorber integral body is made monolayer, and increase forms thick-layer portion with the paper pulp at the multilamellar portion corresponding position of M of above-mentioned embodiment or the combined amount of absorbable polymer.Even absorber has thick-layer portion, also can be by forming the groove 7,7 same with above-mentioned sanitary towel 1, reach action effect identical when having multilamellar portion.The configuration mode of the groove 7,7 when being formed with thick-layer portion comprises preferred configuration mode, and all the situation when being formed with multilamellar portion is identical.
In the above-described embodiment, the part beyond the M of multilamellar portion is 2 layers of structure that formed by bottom absorber 411 and top absorber 412, but also can be monolayer constructions will.In addition, also the M of multilamellar portion can be made 2 layers, 3 layers, 5 layers or more multi-layered lit-par-lit structure and replace making 4 layers of structure.Number of plies of part is poor beyond the M of multilamellar portion and its, also can be 1 layer, 3 layers or more multi-layeredly replaces 2 layers.Also only compressed absorbent formation groove replaces absorber and face sheet are compressed the formation groove together.
In addition, can also omit sidepiece sheet material 5 and only form skin contact by face sheet 2.In addition, sidepiece sheet material 5 can or use telescopic material in himself, or dispose thread or zonal elastomeric material (for example rubber thread, flat rubber) near the lateral edge portion within it, and the sidepiece sheet material 5 that is used in inside edge portion turnover clamps this elastomeric material, to form bag (opening) easily.In addition, above-mentioned embodiment has alar part 61, but also can not have alar part.
Absorbent commodity of the present invention can also be underwear back boxing (sanitary pad), incontinence pad etc. except above-mentioned sanitary napkin.
Absorbent commodity of the present invention is difficult for producing by the multilamellar portion of absorber or the caused gauffer of poor rigidity between thick-layer portion and the other parts when dressing, and and the wearer's body shape between fit good, anti-leakage is good.
The present invention will be described in more detail with reference to embodiment below.
Embodiment
The making of absorber
Accompany auxiliary absorber between the two at bottom absorber and top absorber, and carry out stacked, thereby be formed in the absorber that has the M of multilamellar portion on the part of length direction.Make a plurality of absorbers with same structure.
As bottom absorber, top absorber and auxiliary absorber, used following material respectively.
Bottom absorber: use the sheet material (absorbent sheet that uses in " Laurier Super Slim Guard " that Kao Corp makes) that on paper pulp fiber, is fixed with water absorbent polymer with dispersity.At this moment, the mass area ratio of absorbent sheet is 80g/m
2, wide be 75mm, long be 270mm.
Top absorber: use the sheet material (absorbent sheet that uses in " Laurier Super Slim Guard " that Kao Corp makes) that on paper pulp fiber, is fixed with water absorbent polymer with dispersity.At this moment, the mass area ratio of absorbent sheet is 80g/m
2, wide be 75mm, long be 270mm.
Auxiliary absorber: use the sheet material (absorbent sheet that uses in " Laurier Super Slim Guard " that Kao Corp makes) that on paper pulp fiber, is fixed with water absorbent polymer with dispersity.At this moment, the mass area ratio of absorbent sheet is 100g/m
2, according to becoming 35mm by 70mm, and turn down in the mode that the central part of width overlaps with wide.Long is 90mm.
Embodiment 1
On the both sides of the length direction of the absorber of manufacturing, be processed to form the groove 71 of shape and size as shown in Figure 3 by heat embossing, thereby obtain having the absorber sample of groove.For each groove that forms, the length L 2 of having put down in writing the length L 1 of extending forward from imaginary line X-X in the table 1, having extended back from imaginary line X-X through multilamellar portion M rear end, on the width of absorber 4 (W direction Fig. 3) and the M of multilamellar portion between spacing distance W1 and the tiltangle 1 between the Central Line of the length direction of groove and absorber or the straight line in parallel.Also show simultaneously in the table 1 M of multilamellar portion of absorber and in addition the part thickness (2.5g/m
2Load under).
Use the resulting absorber sample that has groove, make except the groove of absorber, other have and the sanitary napkin of the approximately same form of sanitary napkin of form as shown in Figure 1.
The profile of sanitary towel is that total length is that the overall with of 300mm, the place ahead wing is 160mm, the length from sanitary towel's leading section to alar part center, the place ahead is 115mm.
Liquid permeability sheet material: use hot blast method non-woven fabrics (the perforate sheet material that uses in " LaurierSuper Slim Guard " that Kao Corp makes).
Liquid impermeability sheet material: used thickness is the polyethylene film of 25 μ m.
Sidepiece sheet material: use 18g/m
2The SMS non-woven fabrics made of polypropylene.
Sanitary towel: the absorber sample that will have a groove is configured in the assigned position between aforesaid liquid permeability sheet material and the aforesaid liquid impermeability sheet material, mode according to the both sides that cover liquid permeability sheet material disposes above-mentioned sidepiece sheet material again, in outer ledge mode partly along liquid impermeability sheet material, by heat seal liquid permeability sheet material and sidepiece sheet material are engaged with liquid impermeability sheet material, by heat seal liquid permeability sheet material and sidepiece sheet material are engaged simultaneously.
Except as shown in table 1 change the in shape, size, inclination angle of the groove that will form, adopt similarly to Example 1 method to obtain having the absorber sample of groove.Except using these absorber samples, adopt method similarly to Example 1 to make sanitary napkin.Fig. 4 (a) is the skeleton diagram of the groove of expression embodiment 5, and Fig. 4 (b) is the skeleton diagram of the groove of expression embodiment 6, and Fig. 4 (c) is the skeleton diagram of the groove of expression embodiment 4.
Except forming respectively on the both sides of absorber 2 grooves, employing method similarly to Example 1 obtains having the absorber sample of groove.It is 5mm that the value of W1 is 1, and another is 9.5mm.Except using this absorber sample, adopt method similarly to Example 1 to make sanitary napkin.
Comparative example 3
Except the groove 72 that forms on the absorber shown in Fig. 4 (d), employing method similarly to Example 1 obtains having the absorber sample of groove.Except using this absorber sample, adopt method similarly to Example 1 to make sanitary napkin.
Comparative example 4
Except not forming on the absorber the groove, adopt method similarly to Example 1 to make the absorber sample.Except using this absorber sample, adopt method similarly to Example 1 to make sanitary napkin.
Estimate
To resulting each absorber sample, use Handle-O-Meter to measure rigidity.
For each absorber sample, rigidity be the back-end location Ma of the middle position of the length direction of the M of multilamellar portion (Z-Z part), multilamellar portion (X-X part) and from back-end location Ma more backward 3 places of the position of 15mm (Y-Y part) measure.Specifically, be according to make Z-Z part, X-X part or Y-Y part near and slit between the center, and the absorber length direction with perpendicular to the consistent mode of the direction of slit, measure by said method.Each absorber sample is made 15 or more a plurality of respectively, and the values of stiffness of each several part is recorded in table 2 for 5 samples are measured the meansigma methods that obtains equally.
Judge by result shown in the table 2, values of stiffness 40cN (Z-Z part) with respect to the M of multilamellar portion, when hypothesis has a back-end location Ma at the M of multilamellar portion to be in the imaginary line X-X that crosses absorber 4 on the width, run through the front and back of imaginary line X-X and, can relax the poor rigidity between the M of multilamellar portion and its rear by formation from this imaginary line X-X extend back 15mm or above groove.And, as embodiment 4,5, by forming the groove that tilts near the CL of Central Line of length direction along with extending, perhaps as embodiment 7 towards the rear, by on the both sides of absorber, forming many grooves respectively, can further reach this effect.
To the sanitary napkin of making in embodiment and comparative example, the resinous see-through model that is used to dress sanitary towel is dressed this sanitary towel with simulating, its wearing state of visualization, estimate and body shape between fit and liquid fluidity.
The evaluation of wearing state (fit)
To resulting sanitary towel, use is used to dress the see-through model of the acrylic resin system of sanitary towel, and use physiology underwear (ProductName: Laurier Active Guard (cotton feel), L number) dress this sanitary towel with simulating, from the top visualization of see-through model shape, estimate near the fit of back-end location Ma of sanitary towel's central part (M of multilamellar portion) and the M of multilamellar portion with respect to the sanitary towel of crotch portion.Evaluation is designated as zero: do not see gauffer, △: have the degree of depth be 2mm or following gauffer, *: have the degree of depth to surpass the gauffer of 2mm.
It the results are shown in table 2.The sanitary towel of embodiment 1～7 is smooth-goingly along the shape of see-through model crotch portion, and the shape stability when dressing is good, and the fit of near this two place of the back-end location Ma of central part (M of multilamellar portion) and the M of multilamellar portion and health is good.Relative therewith, the sanitary towel of comparative example 1～4 produces big gauffer near the back-end location Ma of the M of multilamellar portion.Therefore, with the poor fit of see-through model, and dress shape difference.
The evaluation of liquid fluidity
To resulting sanitary towel, use is used to dress the see-through model of waist part of reproduction women standing state of the acrylic resin system of sanitary towel, and use physiology to dress this sanitary towel with underwear (ProductName: LaurierActive Guard (cotton feel), L number) with simulating.Estimating the posture (physiology is about 25 ° of inclinations with the angle of the sidepiece closing line of underwear with the evaluation platform) that is placed as sleep on the platform, inject the defiber blood of 10g horse from crotch portion, observe the flowability of this moment from the effusive liquid of injection portion.The criterion of liquid flow evaluation is designated as ◎: be not detained, zero: some liquid holdups, △ are arranged: liquid holdup and diffusion (along the gauffer diffusion), *: liquid holdup/diffusion, and cross the absorber sidepiece and flow out (liquid arrival rear wing 62).
The results are shown in table 2, consequently: near the sanitary towel of embodiment 1～7 fit of this two place and the health back-end location Ma of central part (M of multilamellar portion) and the M of multilamellar portion is good, so liquid fluidity is also good.Relative therewith, the sanitary towel of comparative example 1～4 produces big gauffer near the back-end location Ma of the M of multilamellar portion, and liquid holdup in this gauffer, flows out to the rear portion after the delay.
Claims (5)
1. absorbent commodity, it possesses absorber, the fore-and-aft direction of the length direction of this absorber when dressing is identical, it is characterized in that, described absorber has the multilamellar portion of Duoing than the other parts number of plies or the thick-layer portion thicker than other parts on the part of length direction, when hypothesis has a back-end location in described multilamellar portion or described thick-layer portion to be in the imaginary line that crosses described absorber on the width, on the both sides of described absorber, be formed with the front and back of running through described imaginary line respectively and extend back more than or equal to the groove of 15mm from this imaginary line, and when observing described absorbent commodity backward, do not increase between the position of 15mm backward at described imaginary line with from this imaginary line at the bar number of the formed groove in the both sides of this absorber in the past.
2. absorbent commodity as claimed in claim 1 wherein, is formed with many respectively and runs through the front and back of described imaginary line and extend back more than or equal to the described groove of 15mm from this imaginary line on the both sides of described absorber.
3. absorbent commodity as claimed in claim 1, wherein, extend back in the front and back of running through described imaginary line and from this imaginary line the described groove more than or equal to 15mm, on the both sides of described absorber, have at least a groove to tilt along with extending respectively near the Central Line of the length direction of absorbent commodity towards the rear of absorbent commodity.
4. absorbent commodity as claimed in claim 1, wherein, the back-end location of described multilamellar portion or described thick-layer portion be positioned at from the front end of described absorber backward the position of 100mm to the scope of the position of 200mm backward.
5. absorbent commodity as claimed in claim 1, thereby it has when dressing to non-skin contact one rollover folding and is fixed on alar part on the underwear, and the back-end location of described multilamellar portion or described thick-layer portion be positioned at from this alar part back-end location to the position of front distance 20mm to from the back-end location of this alar part backward apart from the scope of the position of 60mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP049795/2005 | 2005-02-24 | ||
| JP2005049795A JP5046488B2 (en) | 2005-02-24 | 2005-02-24 | Absorbent articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1823694A CN1823694A (en) | 2006-08-30 |
| CN1823694B true CN1823694B (en) | 2010-12-01 |
Family
ID=36934660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610009537XA Active CN1823694B (en) | 2005-02-24 | 2006-02-24 | Absorbent article |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5046488B2 (en) |
| CN (1) | CN1823694B (en) |
| HK (1) | HK1092347A1 (en) |
| TW (1) | TWI406651B (en) |
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| EP1982678B1 (en) | 2003-02-12 | 2019-03-27 | The Procter and Gamble Company | Comfortable diaper |
| JP5043591B2 (en) * | 2007-10-22 | 2012-10-10 | 花王株式会社 | Sanitary napkin |
| EP2329803B1 (en) | 2009-12-02 | 2019-06-19 | The Procter & Gamble Company | Apparatus and method for transferring particulate material |
| JP5765900B2 (en) * | 2010-08-31 | 2015-08-19 | ユニ・チャーム株式会社 | Incontinence liner |
| JP5631124B2 (en) * | 2010-08-31 | 2014-11-26 | ユニ・チャーム株式会社 | Incontinence liner |
| JP5751774B2 (en) * | 2010-08-31 | 2015-07-22 | ユニ・チャーム株式会社 | Incontinence liner |
| CN102078244A (en) * | 2010-10-18 | 2011-06-01 | 杭州珂瑞特机械制造有限公司 | Non-woven adult diaper with lateral leakage prevention function |
| CN102078247A (en) * | 2010-10-19 | 2011-06-01 | 杭州珂瑞特机械制造有限公司 | Female strip crotch diaper |
| PL2532328T3 (en) | 2011-06-10 | 2014-07-31 | Procter & Gamble | Method and apparatus for making absorbent structures with absorbent material |
| RU2630211C1 (en) | 2011-06-10 | 2017-09-05 | Дзе Проктер Энд Гэмбл Компани | Disposable diapers |
| PL2717823T5 (en) | 2011-06-10 | 2019-09-30 | The Procter And Gamble Company | Absorbent structure for absorbent articles |
| MX2013014596A (en) | 2011-06-10 | 2014-01-24 | Procter & Gamble | Absorbent core for disposable absorbent articles. |
| EP2532329B1 (en) | 2011-06-10 | 2018-09-19 | The Procter and Gamble Company | Method and apparatus for making absorbent structures with absorbent material |
| CN103607989B (en) | 2011-06-10 | 2017-05-24 | 宝洁公司 | Absorbent structure for absorbent articles |
| PL2740449T3 (en) | 2012-12-10 | 2019-07-31 | The Procter & Gamble Company | Absorbent article with high absorbent material content |
| US10639215B2 (en) | 2012-12-10 | 2020-05-05 | The Procter & Gamble Company | Absorbent articles with channels and/or pockets |
| 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 |
| US9987176B2 (en) | 2013-08-27 | 2018-06-05 | The Procter & Gamble Company | Absorbent articles with channels |
| US10292875B2 (en) | 2013-09-16 | 2019-05-21 | The Procter & Gamble Company | Absorbent articles with channels and signals |
| EP2851048B1 (en) | 2013-09-19 | 2018-09-05 | The Procter and Gamble Company | Absorbent cores having material free areas |
| EP2886092B1 (en) | 2013-12-19 | 2016-09-14 | The Procter and Gamble Company | Absorbent cores having channel-forming areas and c-wrap seals |
| US9789009B2 (en) | 2013-12-19 | 2017-10-17 | The Procter & Gamble Company | Absorbent articles having channel-forming areas and wetness indicator |
| EP2905001B1 (en) | 2014-02-11 | 2017-01-04 | The Procter and Gamble Company | Method and apparatus for making an absorbent structure comprising channels |
| EP2949300B1 (en) | 2014-05-27 | 2017-08-02 | The Procter and Gamble Company | Absorbent core with absorbent material pattern |
| CN107405223B (en) | 2015-03-16 | 2021-03-02 | 宝洁公司 | Absorbent article with improved strength |
| GB2555016B (en) | 2015-03-16 | 2021-05-12 | Procter & Gamble | Absorbent articles with improved cores |
| CA2985807A1 (en) | 2015-05-12 | 2016-11-17 | The Procter & Gamble Company | Absorbent article with improved core-to-backsheet adhesive |
| WO2016196069A1 (en) | 2015-05-29 | 2016-12-08 | The Procter & Gamble Company | Absorbent articles having channels and wetness indicator |
| EP3167859B1 (en) | 2015-11-16 | 2020-05-06 | The Procter and Gamble Company | Absorbent cores having material free areas |
| EP3238676B1 (en) | 2016-04-29 | 2019-01-02 | The Procter and Gamble Company | Absorbent core with profiled distribution of absorbent material |
| EP3238678B1 (en) | 2016-04-29 | 2019-02-27 | The Procter and Gamble Company | Absorbent core with transversal folding lines |
| JP6397854B2 (en) * | 2016-06-27 | 2018-09-26 | ユニ・チャーム株式会社 | Pants-type absorbent article |
| JP7453306B1 (en) | 2022-09-28 | 2024-03-19 | 花王株式会社 | absorbent articles |
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- 2006-02-24 CN CN200610009537XA patent/CN1823694B/en active Active
- 2006-11-23 HK HK06112887.5A patent/HK1092347A1/en not_active IP Right Cessation
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| WO2003105738A1 (en) * | 2002-06-14 | 2003-12-24 | ユニ・チャーム株式会社 | Absorptive article |
| WO2004049996A1 (en) * | 2002-12-05 | 2004-06-17 | Uni-Charm Corporation | Elongated absorbent article having compression grooves |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI406651B (en) | 2013-09-01 |
| CN1823694A (en) | 2006-08-30 |
| JP2006230714A (en) | 2006-09-07 |
| HK1092347A1 (en) | 2007-02-09 |
| TW200631558A (en) | 2006-09-16 |
| JP5046488B2 (en) | 2012-10-10 |
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