CN205411476U - Absorbent product - Google Patents
Absorbent product Download PDFInfo
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- CN205411476U CN205411476U CN201521055567.5U CN201521055567U CN205411476U CN 205411476 U CN205411476 U CN 205411476U CN 201521055567 U CN201521055567 U CN 201521055567U CN 205411476 U CN205411476 U CN 205411476U
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Abstract
The utility model provides an absorbent product. First piece (1) and second piece (2) that constitutes compound piece (10) of positive dough sheet is joint and be formed with a plurality of junction surfaces partly, and first piece (1) position beyond the junction surface is outstanding to the orientation of leaving second piece (2), forms a plurality of convex parts (41) to the play of the person's of dress skin pleurapophysis. Junction surface all or some are in long lengthwise junction surface (31) of first direction X that the length direction with absorbent product corresponds, become to have multirow second direction junction surface to arrange R at the first direction X -shaped in compound piece (10), R is arranged at this second direction junction surface is that lengthwise junction surface (31) dispose with the interval more than 2 kinds at second direction Y regularly and form, be formed with in the region that the junction surface surrounded of total more than 4 at two adjacent in second direction junction surface row lengthwise junction surfaces convex part (41).
Description
Technical field
This utility model relates to the absorbent commodities such as disposable diaper, sanitary napkin, incontinence pad.
Background technology
At present, as the positive dough sheet of the absorbent commodities such as disposable diaper, sanitary napkin, incontinence pad, it is known to formed the article of concaveconvex shape in the skin side of the skin towards wearer by embossing processing etc..It is known that by forming concaveconvex shape in the skin side of positive dough sheet, carry out the color of liquid of hidden absorption, and suppress urine or sugar just to wait leakage, raising skin sense of touch.
It addition, as the positive dough sheet with concaveconvex shape, it is also known that have two sheet parts to engage and positive dough sheet (with reference to patent documentation 1) that skin side is convex form.
Additionally, a kind of absorbent commodity is had described in patent documentation 2, form the embossing recess of generally rectangular shape or generally oblong shape on the surface of the positive dough sheet of absorbent commodity, make the embossing being made up of multiple embossing recesses come the end side of length direction of absorbent commodity and center side configures in different directions.
Prior art literature
Patent documentation
Patent documentation 1:(Japan) JP 2009-050538 publication
Patent documentation 2:(Japan) JP 2004-298271 publication
Summary of the invention
This utility model relates to including positive dough sheet, back sheet and the absorber being configured between the two sheet, and has when wearing along the article length direction in direction before and after wearer and the absorbent commodity in the item width direction orthogonal with this article length direction.Described positive dough sheet is made up of the composite sheet with first direction and orthogonal to that second direction, and first direction is consistent along the article length direction in direction before and after wearer with when wearing.The first of the stacking of described composite sheet and second part engage and form multiple junction surface, and first position beyond described junction surface is prominent to the direction leaving second and forms the multiple protuberances prominent to the skin side of wearer.All or part of of described junction surface is the lengthwise junction surface of the shape of the lengthwise that length along a first direction is longer than the length along second direction, described composite sheet is formed multiple rows of second direction junction surface row in a first direction, described second direction junction surface row is that described lengthwise junction surface configures along second direction regularly with two or more intervals, is formed with described protuberance in the region of the engagement portion envelopes by the total more than 4 including two described lengthwise junction surfaces adjacent in the row of second direction junction surface.
Accompanying drawing explanation
Fig. 1 is the basic top view constituted of the disposable diaper of the embodiment being denoted as absorbent commodity of the present utility model.
Fig. 2 is the II-II line sectional view of Fig. 1.
The partial cross-sectional perspective view of a part for the composite sheet that Fig. 3 is enlarged representation to be preferably used as the positive dough sheet of absorbent commodity of the present utility model.
Fig. 4 is the top view of a part for the composite sheet shown in enlarged representation Fig. 3.
Fig. 5 is the top view of the major part of the composite sheet shown in enlarged representation Fig. 4.
Fig. 6 (a) is the VIa-Via line sectional view of Fig. 5, and Fig. 6 (b) is the VIb-VIb line sectional view of Fig. 5.
Fig. 7 is the schematic diagram representing the device being preferably used in the manufacture of the composite sheet shown in Fig. 3.
The axonometric chart of a part under the state that Fig. 8 is the first roller of the device shown in exploded view 7.
Fig. 9 is the figure of the side face planar development by the first roller of the device shown in Fig. 7.
Figure 10 is the figure of the side face planar development by the second roller of the device shown in Fig. 7.
Figure 11 is the figure of the state that the protuberance of the second roller shown in planar development Figure 10 engages with the side face of the first roller shown in Fig. 9.
Figure 12 is the amplification plan view (figure suitable with Fig. 4) of other examples being denoted as the composite sheet that the positive dough sheet of absorbent commodity of the present utility model is preferably used.
Figure 13 is the figure of the side face of the first roller that planar development is preferably used in the manufacture of the composite sheet shown in Figure 12.
Figure 14 is the figure of the side face of the second roller that planar development is preferably used in the manufacture of the composite sheet shown in Figure 12.
Figure 15 is the figure of the state that the protuberance of the second roller shown in planar development Figure 14 engages with the side face of the first roller shown in Figure 13.
Figure 16 is the top view of the composite sheet representing comparative example.
Detailed description of the invention
Such as the positive dough sheet of patent documentation 1,2 sheet parts engage and skin side becomes the positive dough sheet of concaveconvex shape, by having the sheet of concaveconvex shape and other chip bondings and the conformality of concavo-convex protuberance is relatively good.
But, owing to the thickness of dough sheet positive because of concavo-convex formation thickens, so sometimes because of the pattern of its three-dimensional shape along with the deformation of absorbent commodity when wearing, sheet producing irregular wrinkle.Such as, in disposable diaper, owing to the lower limb of wearer is movable, thus when the absorber of crotch is compressed at width, positive dough sheet is not along with deformation sometimes, and is easily generated irregular wrinkle.When producing irregular wrinkle on positive dough sheet, Excreta easily flows along wrinkle, also becomes the reason that leakageresistance reduces.
Additionally, in the invention that patent documentation 2 is recorded, in embossing is arranged, it is configured with the embossing recess of elongate shape at certain intervals, but if configured the most at certain intervals, the then embossing recess bending sometimes due to the activity of wearer in dress, it is impossible to maintain the concavo-convex shape of positive dough sheet.
Therefore, problem of the present utility model is to provide the elimination absorbent commodity that above-mentioned prior art has the disadvantage that.
Hereinafter, preferred embodiment it is described with reference to the accompanying drawings based on it for this utility model.
Fig. 1 and Fig. 2 represents an embodiment i.e. basic structure of disposable diaper 100 (following, to be also simply referred as diaper 100) of absorbent commodity of the present utility model.
Diaper 100 as depicted in figs. 1 and 2, including the positive dough sheet 12 of liquid permeability, the back sheet 13 of liquid impermeability and the absorber 14 being configured between two sheets 12,13.About back sheet 13, so-called liquid impermeability is the concept also comprising liquid difficulty permeability, and back sheet 13, except in the case of complete liquid impermeable, also includes the situation etc. being made up of the sheet etc. of water-repellancy.
Diaper 100 have direction consistent with direction before and after wearer when wearing i.e. article length direction Xa and when the most plane launch diaper 100 the item width direction Ya orthogonal with article length direction Xa.It addition, diaper 100 has the veutro portion A of the veutro being configured at wearer on the Xa of article length direction when wearing, is configured at the drosal part B of the dorsal part of wearer and crotch C between veutro portion A and drosal part B when wearing.Diaper 100 is flat type disposable diaper, and the edge, both sides of drosal part B is provided with pull stap 17, and the outer surface at veutro portion A is provided with taking of this pull stap 17 of set and carries 18.
The absorber 14 of diaper 100 includes absorbent core 14a and the clad sheet 14b of cladding this absorbent core 14a.Absorbent core 14a such as can be constituted by the long-pending slim of the absorbency fibers such as paper pulp fiber or absorbency fiber are slim with the mixed product of water absorbent polymer.As absorbency fiber, such as, can arrange the cellulose family hydrophilic fibres such as act paper pulp fiber, staple fibre, cotton fiber, cellulose acetate.In addition to cellulose family hydrophilic fibre, additionally it is possible to use the fiber utilizing interfacial agent etc. to make the fiber hydrophiling being made up of synthetic resin such as polyolefin, polyester, polyamide.As clad sheet 14b, such as, use cotton paper or the non-woven fabrics of water penetration.Clad sheet 14b i.e. can be with the entirety of 1 sheet cladding absorbent core 14a, it is also possible to combines more than 2 sheets and is coated with absorbent core 14a.As back sheet 13, use liquid impermeability or the laminate etc. of the resin molding of water-repellancy, resin molding and non-woven fabrics.
Being configured with in the both sides of the length direction of diaper 100 and have the sheet 15 that the three-dimensional fold of elastomeric element 15a is formed, because of the contraction of this elastomeric element 15a, the crotch C-shaped at wearing effect becomes the three-dimensional fold that the skin side of oriented wearer erects.It addition, leg elastic members 16 is arranged in the position being configured at around lower limb of crotch C with elongation state, because it shrinks, the crotch C-shaped at wearing effect becomes the leg creases of the fit being improved around the lower limb of wearer.
The positive dough sheet 12 of diaper 100 is made up of the composite sheet 10 shown in Fig. 3 and Fig. 4.Fig. 3 is the partial cross-sectional perspective view of a part for enlarged representation composite sheet 10.
Composite sheet 10 is as it is shown on figure 3, the first 1 of stacking and second 2 part engage and are formed with multiple junction surface 31, and the first 1 position beyond this junction surface 31 is prominent to the direction leaving second 2, forms the multiple protuberances prominent to the skin side of wearer.The surface of second 2 side of composite sheet 10 is generally flat, be formed in first 1 side rise and fall big concavo-convex.
First 1 and second 2 are made up of sheet material.As sheet material, such as, can use non-woven fabrics, weave cotton cloth and fibre plate or the film etc. such as looped fabric, from the point of view of the viewpoints such as skin sense of touch, fibre plate is preferably used, particularly preferably uses non-woven fabrics.Constituting first 1 i.e. can be identical with the kind of the sheet material of second 2, or can also be different.
As using non-woven fabrics as the non-woven fabrics constituted in the case of the sheet material of first 1 and second 2, such as, can arrange act hot-wind nonwoven cloth, spun-bonded non-woven fabrics, spun-laced nonwoven fabric, melt spraying non-woven fabrics, resin bonded non-woven cloth, needle punched non-woven fabrics etc..The duplexer combining these non-woven fabrics two or more or the duplexer combining these non-woven fabrics and thin film etc. can also be used.Wherein, hot-wind nonwoven cloth or spun-bonded non-woven fabrics are preferably used.The grammes per square metre of the non-woven fabrics used as the sheet material constituting first 1 and second 2 is preferably 10g/m2Above, more preferably 15g/m2Above, it is additionally preferred for 40g/m2Hereinafter, more preferably 35g/m2Below.The grammes per square metre of non-woven fabrics is preferably 10g/m2Above 40g/m2Hereinafter, more preferably 15g/m2Above 35g/m2Below.
As the fiber constituting non-woven fabrics, it is possible to use the fiber being made up of various thermoplastic resins.As thermoplastic resin, can arrange act has polyamide, polyacrylic acid, polyalkyl methacrylate, polrvinyl chloride, the polyvinylidene chloride etc. such as the polyester such as the polyolefin such as polyethylene or polypropylene, polyethylene terephthalate, nylon 6 or nylon66 fiber.These resins can be used alone a kind of or use as two or more mixture.It addition, can use with the form of core-sheath-type or the composite fibre such as type shoulder to shoulder.
Composite sheet 10 has first direction X and orthogonal to that second direction Y in the face of sheet, when loading diaper 100, first direction X is consistent with the length direction of diaper 100 (article length direction) Xa, and second direction Y is consistent with the width of diaper 100 (item width direction) Ya.
It addition, the general first direction X in most cases of composite sheet 10 is consistent with the blank volume transport direction of first 1 and second 2.In the case of first 1 and second 2 e.g. non-woven fabrics, the first direction X of composite sheet 10 is consistent with the main fiber orientation directions of the fiber constituting non-woven fabrics in most cases.It addition, the first direction X of composite sheet 10 is also to manufacture the conveyance direction (MD) during composite sheet 10 by method described later.
In composite sheet 10, engage as the first 1 of stacking and second 2 part and the junction surface that formed, as it is shown in figure 5, the lengthwise junction surface 31 of the shape of length L3 that the is formed with X along a first direction lengthwise longer than length L1 along second direction Y.Lengthwise junction surface 31 is all formed as rectangle, and each limit of its rectangle is consistent with first direction X or second direction Y.In the composite sheet 10 used in present embodiment, whole junction surfaces is lengthwise junction surface 31.In lengthwise junction surface 31, first 1 and second 2 are integrally pressurizeed, and two panels is equal densification compared with other parts, preferably by the fusing constituting resin of the sheet of one or both and solidification afterwards, by thermal welding between two panels.
It addition, as shown in Figure 4, composite sheet 10 X-shaped in a first direction in present embodiment become to have multiple rows of second direction junction surface to arrange R, this second direction junction surface row R to be lengthwise junction surface 31 along second direction Y configure regularly with two kinds of intervals L2, L4 forms.More specifically, in the row R of second direction junction surface, as interval to each other, the lengthwise junction surface 31 in second direction Y, having the first interval L2 and the second interval L4 wider for interval L2 than first, the multiple lengthwise junction surfaces 31 in the row R of second direction junction surface configure off and in second direction Y in the way of alternately having both intervals in second direction.
Constitute the length on lengthwise junction surface 31 X in a first direction of each second direction junction surface row R consistent with allocation position, between second direction junction surface row R adjacent for X in a first direction, be formed with the gap of certain width W.Additionally, X-shaped becomes to have plurality of rows of second direction junction surface row R every a row in a first direction, the allocation position at the lengthwise junction surface 31 in second direction Y is consistent, and the allocation position at the adjacent row R lengthwise junction surface 31 in second direction Y each other, second direction junction surface is mutually different.Specifically, in the composite sheet 10 of present embodiment, as shown in Figure 5, R is arranged as second direction junction surface, R1 and second direction the second junction surface row R2 is arranged at second direction the first junction surface that the allocation position at the lengthwise junction surface 31 that X is alternatively formed in second direction in a first direction is mutually different, allocation position about the lengthwise junction surface 31 in second direction Y, second direction the first junction surface row Rl and second direction the second junction surface row R2, any one junction surface row Rl (R2) with the second adjacent lengthwise junction surface 31 of L4, interval be configured with to each other another junction surface row R2 (R1) with the first L2 adjacent pair lengthwise junction surface 31, interval.
And, as it is shown in figure 5, be formed with protuberance 41 in 6 junction surface 31 areas encompassed of total at two lengthwise junction surfaces 31,31 adjacent in including second direction junction surface row R.6 junction surfaces 31 of the total of present embodiment are lengthwise junction surface 31, specifically, as it is shown in figure 5, surrounded by 6 lengthwise junction surfaces 31 of total at two the lengthwise junction surfaces 31 constituting second direction the first junction surface row R1 and 4 the lengthwise junction surfaces 31 being formed in two adjacent with this second direction first junction surface row R1 for first direction X second direction the second junction surfaces row R2, R2.
In the composite sheet 10 of present embodiment, being arranged R by being arranged in each second direction junction surface in second direction Y off and on the interval L4 of more than 2 times of the first interval L2 to 30 near the lengthwise junction surface that constituted, a pair lengthwise junction surface 31 of configuration with the first interval L2 in second direction Y, protuberance 41 is formed at the adjacent lengthwise junction surface of second direction Y to 30,30 to each other.The lengthwise junction surface of present embodiment is constituted with the narrowest L2 adjacent pair lengthwise junction surface, interval 31 by the row R of second direction junction surface 30.
In composite sheet 10, by forming junction surface 31 by this way and pressing from rear side when manufacturing composite sheet 10 or attract to be equivalent to by the part etc. in the region adding up to 6 lengthwise junction surfaces 31 to surround from face side, and in composite sheet 10, it is formed with the protuberance 41 of the cross sectional shape shown in multiple Fig. 6.
As shown in Figure 3 and Figure 4, in composite sheet 10, protuberance 41 is formed as the scattered state in direction in the face of composite sheet 10.The configuration of protuberance 41 zigzag ground.More specifically, protuberance 41 is configured to include that first direction protuberance row 4X, multiple protuberance 41 of multiple protuberance 41 X linear array the most in a first direction arrange 4Y and multiple protuberance 41 at certain intervals at the third direction protuberance row 4XY of the third direction linear array tilted relative to first direction X and second direction Y both direction at the second direction protuberance of second direction Y linear array at certain intervals as shown in Figure 4.Additionally, the allocation position of adjacent for X in a first direction second direction protuberance row's 4Y protuberance 41 each other staggers half pitch in second direction Y, staggers half pitch at the allocation position X in a first direction of the adjacent first direction protuberance row's 4X protuberance 41 each other of second direction Y.Half pitch said here is protuberance 41 that all directions of X and second direction Y in a first direction are adjacent distance between centers each other.
Being formed at each protuberance 41 of composite sheet 10 as shown in Fig. 4, Fig. 6 (a) and Fig. 6 (b), be circle or elliptical shape during vertical view, side has hollow bulb 41V overleaf.Protuberance 41 is being formed with top by the central part of 6 lengthwise junction surface 31 areas encompassed.
Additionally, the composite sheet 10 of present embodiment is as shown in Figure 5, it is formed with the second protuberance 42 that aspect ratio protuberance 41 is low between the lengthwise junction surface 31,31 adjacent with narrow interval L2 in second direction protuberance row R, is formed with, between the nearest junction surface 31 of second direction protuberance row R adjacent for X in a first direction, the 3rd protuberance 43 that aspect ratio protuberance 41 is low.Additionally, as shown in Figure 5, when being conceived to the protuberance 41a being formed at composite sheet 10, separated by the annular recessed portion being made up of 6 junction surfaces 31 surrounding this protuberance 41a and the second protuberance 42 being positioned between these junction surfaces 31 and the 3rd protuberance 43 with between adjacent and other the protuberance 41 of this protuberance 41a.Although the second protuberance 42 and the 3rd protuberance 43 are " protuberance " as word, but the second protuberance 42 and the height of the 3rd protuberance 43 all relative to ratio protuberance 41 low, be therefore relatively recess from the point of view of these protuberances 41.
Lengthwise junction surface 31 can be formed in various ways.First 1 and second 2 by can be in the case of the material of thermal welding constitutes, it is possible to use heat, ultrasound wave, high frequency bonding etc..No matter the material of first 1 and second 2 why, and can use that bonding agent carries out is bonding.When the welding using heat, ultrasound wave to carry out engages two sheets 1,2 and forms junction surface 31, junction surface 31 is compacted compared with the position beyond this junction surface 31.In the case of sheet 1,2 is made up of fibre plate, because of compacting, fiber spacing is formed as film from shortening or lose fibre morphology.In the manufacture method of composite sheet 10 described later, fetched by hot melt and engage two sheets 1,2 and form the junction surface 31 that is made up of weld portion.
In the diaper 100 of present embodiment, to make first direction X towards article length direction Xa, to make second direction Y the composite sheet 10 with above composition be used as positive dough sheet 12 in the way of Ya towards item width power.Diaper 100 according to present embodiment, there is the second direction junction surface row R of above-mentioned composition, it is configured with multiple at the lengthwise junction surface 31 of the shape of article length direction Xa length in item width direction Ya (second direction Y), it is formed with protuberance 41 between this lengthwise junction surface 31, so in dress when the absorber of crotch is compressed by the lower limb of wearer, positive dough sheet 12, with each lengthwise junction surface 31 for starting point bending, is therefore prevented from producing irregular wrinkle on the whole at positive dough sheet 12.Especially because the region of the interval opposite, narrow existed between lengthwise junction surface 31, so being not easily susceptible to movable impact when wearing, and the position narrow owing to having interval, even if so having activity when wearing, the most easily maintaining concaveconvex shape.
It addition, in the composite sheet 10 of present embodiment, the lengthwise junction surface constituted with narrow L2 adjacent pair lengthwise junction surface, interval 31 separate 30 and configure off and on than the interval L4 of its (interval L2) wide more than 2 times.Accordingly, for activity when wearing, it is more easy to maintain concaveconvex shape.Above-mentioned interval L4 is preferably more than 2 times of above-mentioned interval L2, more preferably more than 2.5 times, additionally, it is preferred that be less than 5 times, more preferably less than 4 times, more specifically, is preferably be spaced L2 more than 2 times less than 5 times, more preferably more than 2.5 times less than 4 times.
Additionally, from the viewpoint of impact movable when lengthwise junction surface is not easily susceptible to wear on 30, lengthwise junction surface is preferably less than 2 times relative to constituting lengthwise junction surface to length L3 of the respective first direction X in a pair lengthwise junction surface 31,31 of 30 to the first interval L2 of 30, more preferably less than 1.5 times, additionally, it is preferred that be more than 0.1 times, more preferably more than 0.2 times, more specifically, preferably more than 0.1 times less than 2 times, more preferably more than 0.2 times less than 1.5 times.
It addition, in present embodiment, as shown in Figure 4, lengthwise junction surface is configured to 30 tilt clathrate.Tilt clathrate and refer to that lengthwise junction surface is formed 30 relative to article length direction Xa and the row at the lengthwise junction surface pair of the inclination of item width direction Ya all directions inclination, and these row's clathrates ground intersect.When lengthwise junction surface is configured to tilt clathrate to 3, the shape bending of the positive easy lower limb along with wearer of dough sheet 12, divides in crotch and is difficult to form irregular wrinkle.
From the viewpoint of the effect the most reliably playing more than above-mentioned one or two, the protuberance 41 being formed between the lengthwise junction surface of second direction junction surface row preferably constitutes the protuberance that the height in the composite sheet of positive dough sheet 12 is maximum.
It addition, the height H1 of protuberance 41 is preferably more than 0.5mm, more preferably more than 1mm, additionally, it is preferred that be below 5mm, more preferably below 4mm, specifically, preferably more than 0.5mm below 5mm, more preferably more than lmm below 4mm.It addition, less than the 70% of the highly preferred height H1 for protuberance 41 of the second protuberance 42, more preferably less than 50%, additionally, it is preferred that be more than 5%, more preferably more than 10%, specifically, preferably less than more than 5% 70%, more preferably less than more than 10% 50%.It addition, less than the 70% of the highly preferred height H1 for protuberance 41 of the 3rd protuberance 43, more preferably less than 50%, additionally, it is preferred that be more than 10%, more preferably more than 20%, specifically preferably more than l0% less than 70%, more preferably less than more than 20% 50%.
It addition, for protuberance 41, such as, length Lx of first direction X relative to length Ly of second direction Y, preferably less than more than 50% 200%, more preferably less than more than 70% 130%.Length Lx of the first direction X of protuberance 41 is preferably more than 0.5mm, more preferably more than 1mm, additionally, it is preferred that be below 20mm, more preferably below l0mm, specifically, and preferably more than 0.5mm below 20mm, more preferably more than 1mm below 10mm.Length Ly of protuberance 41 is preferably more than 1mm, more preferably more than 2mm, additionally, it is preferred that be below 20mm, more preferably below 10mm, specifically, and preferably more than 1mm below 20mm, more preferably more than 2mm below 10mm.In the case of length Lx of X length Ly than second direction Y is long in a first direction, when because the lower limb of wearer is movable, the absorber of crotch is compressed at width, the protuberance row of linear array produces folding line at absorber length direction each other in a first direction, thus form space at crotch region, more can suppress excremental leakage.On the other hand, in the case of length Lx of X length Ly than second direction Y is short in a first direction, when because the lower limb of wearer is movable, the absorber of crotch is compressed at width, owing to the shape of protuberance deforms in the way of reducing at width, the compression restoring force of protuberance is improved, and improves skin sense of touch further.
It addition, length L3 of the X along a first direction at lengthwise junction surface 31 is more than 0.5mm, particularly preferably more than 1mm, preferably below 10mm, particularly preferably below 5mm, more specifically, preferably more than 0.5mm below 10mm, particularly preferably more than lmm below 5mm.It addition, length L1 along second direction Y at lengthwise junction surface 31 is more than 0.1mm, particularly preferably more than 0.5mm, preferably below 5mm, particularly preferably below 3mm, the most preferably more than 0.1mm below 5mm, particularly preferably more than 0.5mm below 3mm.
Lengthwise junction surface 31 along second direction Y length L1 be preferably the most along a first direction X length L3 less than 70%, particularly preferably less than 50%, it is preferably more than 20%, particularly preferably more than 30%, more specifically, it is preferably less than more than 20% 70%, more preferably less than more than 30% 50%.
In the row R of second direction junction surface, the narrowest interval L2 between lengthwise junction surface 31 is preferably more than 0.2mm, particularly preferably more than 0.8mm, it is preferably below 10mm, particularly preferably below 5mm, more specifically, it is preferably more than 0.2mm below 10mm, particularly preferably more than 0.8mm below 5mm.
In the row R of second direction junction surface, the widest interval L4 between lengthwise junction surface 31 is preferably more than 1mm, particularly preferably more than 2mm, it is preferably below 20mm, particularly preferably below l0mm, more specifically, it is preferably more than 1mm below 20mm, particularly preferably more than 2mm below 10mm.
Second direction junction surface row R interval W to each other on first direction X is preferably more than 0mm, particularly preferably more than 0.5mm, preferably below 10mm, particularly preferably below 5mm, more specifically, preferably more than 0mm below 10mm, particularly preferably more than 0.5mm below 5mm.
Second direction the first junction surface row's R1 preferred distance to each other on first direction X is identical with the preferred length Lx of the protuberance 41 of X along a first direction respectively with second direction the second junction surface row's R2 preferred distance to each other.
Below, the preferred manufacture method of the composite sheet 10 of present embodiment is described with reference to Fig. 7～Figure 12.The manufacture method of composite sheet 10 includes figuration operation as described below as shown in Figure 7: the first roller 111 making side face be concaveconvex shape and side face have the second roller 112 of the concaveconvex shape becoming the shape that the concaveconvex shape with the first roller engages and mutually in the opposite direction rotate, and supply first 1 to the engaging piece of two rollers 111,112, and it is concavo-convex to make first 1 be formed.Additionally, the manufacture method of composite sheet 10 has bonding process as described below after figuration operation: make first 1 keep all along the week face of the first roller 111, after mate moves, second 2 is supplied in the way of overlapping with first 1, between the protuberance and the first heating roller 113 and the second heating roller 114 of the first roller 111, clamp two sheets 1,2 under heating and be partially engageable with.
As it is shown in fig. 7, the side face relative configuration of second roller the 112, first heating roller 113 and the second heating roller 114 and the first roller 111.Second roller the 112, first heating roller 113 and the second heating roller 114, goes to configure in the order from the upstream side downstream side of direction of rotation R of the first roller 111.Side face is the first roller 111 of concaveconvex shape and being described in detail later of the second roller 112.First heating roller 113 and the second heating roller 114 are that respective side face does not has irregular smooth anvil roller.
First, first 1 is sent from the blank winding up roller (not shown) of first 1.It addition, send second 2 from the blank winding up roller (not shown) of second 2 respectively with it.And, as shown in Figure 8, make the first 1 sent enter the first roller 111 concavo-convex to make first 1 be formed with the engaging piece of the second roller 112.At this moment, make the first roller 111 attract inside roller from its side face, promote that first 1 is formed concavo-convex.Attracting mechanism for the first roller 111 is aftermentioned.
Then, as it is shown in fig. 7, the side face at the first roller 111 continues to attract first 1, under the state keeping figuration state, overlapping second 2, between the first heating roller 113 that the first roller 111 is smooth with side face, this overlapping sheet material is clamped.At this moment, both the first roller 111 and the first heating roller 113 or the only first heating roller 113 are heated to set point of temperature.Thus, be will be located in the first 1 on the crest top land of the tooth being i.e. positioned at each gear (with reference to Fig. 8) described later on the protuberance of the first roller 111 and second 2 joint by thermal welding and form junction surface 31.
Then, make the overlapping body of the first 1 engaged by thermal welding and second 2 move when the side face of the first roller 111 to continue to be kept attraction, between the second heating roller 114 that the first roller 111 and side face are smooth, clamp this overlapping body.At this moment, both the first roller 111 and the second heating roller 114 or the only second heating roller 114 are heated to set point of temperature.Thus, being i.e. positioned at the junction surface 31 on the tooth of each gear on the protuberance being positioned at the first roller 111, the material such as thermoplastic resin constituting first 1 and second 2 melts, and more firmly forms junction surface 31.So, the composite sheet 10 of purpose it is manufactured as continuously.
Fig. 8 is the axonometric chart of a part for the state of the first roller 111 representing exploded view 7.First roller 111 is to combine multiple first gears 121 and the second gear 122 and distance piece 123 and they be arranged on and be integrated into the parts of roll with wick-like in shaft core 124.Order for these gears 121,122 and the configuration of distance piece 123 is aftermentioned.Gear 121, gear 122 and distance piece 123 are respectively provided with identical width (facewidth).Two kinds of gears 121,122 and their shaft core opening of distance piece 123, insert rotary shaft (not shown) at its opening.Two kinds of gears 121,122 and distance piece 123 are respectively formed with notch part (not shown), in this notch part insert key (not shown).Thus, two kinds of gears 121,122 and the idle running of distance piece 123 are prevented.
Distance piece 123 is the shape with the multiple projections i.e. post (beam) 125 extended from center radially.The identical length of each post 125 of distance piece 123 is same.When the diameter of a circle that imagination is formed by the front end by each post 125 of link for convenience is defined as tip diameter, this tip diameter is less than the root diameter of the first and second gears 121,122.
Each gear 121,122 is formed with multiple peristome 126,127 in the way of surrounding the opening at the center inserting rotary shaft (not shown).Each peristome 126,127 same diameter, is respectively formed in equidistant position, center of distance gear.Adjacent peristome 126,127 is the most generally equalized with the center angulation of gear.The number of the peristome 126,127 of each gear 121,122 is identical with the quantity of the post 125 of above-mentioned distance piece 123.And, in the case of assembling each gear 121,122 and distance piece 123, in the way of each peristome 126,127 lays respectively between the adjacent post 125 of distance piece 123, configure each gear 121,122 and distance piece 123.That is, peristome 126,127 is made to be positioned at the region of the substantially V-shaped being made up of the central part of two adjacent posts 125 and distance piece 123.Additionally in Fig. 8, in the region of above-mentioned substantially V-shaped, include the whole region of peristome 126,127, but be that instead of it, it is also possible in the region of substantially V-shaped, only include a part for peristome 126,127.The position of this substantially V-shaped is equivalent to the recess of the first roller 111 that side face is concaveconvex shape.On the other hand, the protuberance of concaveconvex shape is equivalent to tooth top and the tooth root of each gear 121,122.
As previously discussed, when assembling each gear 121,122 and distance piece 123, the peristome 126 of the first gear 121 is connected at the shaft core direction of the first roller 111 with the peristome 127 of the second gear 122, and the multiple attraction paths (not shown) extended at this shaft core direction are formed at the inside of the first roller 111.This attraction path is connected with the suction device being arranged at outside roller 111, by making this suction device work, can internally attract the first roller 111 from the recess of the side face being formed at the first roller 111.
Fig. 9 represents the state of the side face of planar development the first roller 111.In this figure, it is the direction of rotation of the first roller 111 with the direction shown in arrow U, is the shaft core direction of the first roller 111 with the direction shown in arrow V.It addition, with the crest top land of each gear of region representation 121,122 of the rectangle shown in choice refreshments in this figure.As shown in the drawing, to have the first gear 121, distance piece the 123, second gear 122, distance piece the 123, first gear 121, distance piece the 123, second gear 122 and 123 8 parts of distance piece integrated and form 1 cycle T with this order for the first roller 1111, and this cycle T repeatedlylIntegrated structure.
In Fig. 9, it is the formation precalculated position as the junction surface 31 in the composite sheet 10 of purpose with the crest top land shown in choice refreshments.Specifically, the crest top land of the tooth 122a of the tooth 121a of the first gear 121 and the second gear 122 is the formation precalculated position at lengthwise junction surface 31.Each gear 121,122 and distance piece 123 properly configure in the way of obtaining the configuration pattern at the junction surface 31 shown in above-mentioned Fig. 4.
Additionally, in Fig. 9, first roller recess area 141A is the formation precalculated position as the protuberance 41 in the composite sheet 10 of purpose, first roller the second recess area 142A is the formation precalculated position as the second protuberance 42 in the composite sheet 10 of purpose, and the first roller the 3rd recess area 143A is the formation precalculated position as the 3rd protuberance 43 in the composite sheet 10 of purpose.
Figure 10 represents that planar development and the first roller 111 become the state of the side face of the second roller 112 of meshing relation.By the direction of rotation that the direction shown in arrow U is the second roller 112 in this figure, with the shaft core direction that the direction shown in arrow V is the second roller 112.
As shown in Figure 10, the second roller 112 is made up of the conglomerate including the 3rd gear 131, distance piece 123 and the 4th gear 132.With the crest top land of the region representation gear 131,132 of the rectangle shown in thick point in this figure.Second roller 112 can also not have attracting mechanism.Therefore, there is no need on the gear of the second roller 112, be formed with the first gear 121 and the peristome 126,127 of the second gear 122 being formed at the first roller 111.
As shown in Figure 10, to have the 3rd gear 131, distance piece 123, the 4th gear 132,123 4 parts of distance piece integrated and form 1 cycle T with this order for the second roller 1122, and this cycle T repeatedly2Integrated structure.
In Figure 10, the tooth 131a of the 3rd the gear 131 and tooth 132a of the 4th gear 132 is utilized to form the second roller protuberance 141B respectively.When the first roller 111 engages with the second roller 112, the second roller protuberance 141B and the first roller recess area 141A are fitted together to.
Figure 11 represents the state of the state of the protuberance of planar development the second roller 112 and the side face engagement of the first roller 111.With the crest top land of the gear 121,122 of region representation first roller 111 of the rectangle shown in choice refreshments in this figure.It addition, the crest top land of the gear 131,132 with region representation second roller 112 of the rectangle shown in thick point.As knowable to this figure, the second roller protuberance 141B enters the first roller recess area 141A.On the other hand, the protuberance of the second roller 112 does not enters into first roller the second recess area 142A and the first roller the 3rd recess area 143A.
It is additionally, since the second roller protuberance 141B and enters the first roller recess area 141A, thus carry out the solid forming (figuration) corresponding with protuberance 41 in first 1 (not shown) is pressed into the first roller 111.Additionally, in first roller the second recess area 142A and the first roller the 3rd recess area 143A, utilize from this second recess area 142A and the 3rd recess area 143A to the attraction of the inside of the first roller 111, in first 1 (not shown) attracted to this second recess area 142A and the 3rd recess area 143A, carry out solid forming.Afterwards, second 2 sticks together with the first 1 having carried out solid forming, thus obtains the composite sheet 10 as purpose.
The composite sheet 10 obtained in the above described manner is imported the manufacture line of diaper 100, by known method, forms the positive dough sheet 12 of disposable diaper 100.
Above, illustrate this utility model based on its optimal embodiment, but this utility model is not restricted to above-mentioned embodiment.Such as, in absorbent commodity of the present utility model, the composite sheet used as positive dough sheet can also be composite sheet 10D shown in Figure 12.
In composite sheet 10D shown in Figure 12, in the same manner as above-mentioned composite sheet 10, the first 1 of stacking and second 2 are partially engageable with and form multiple junction surface 31,34, and this first 1 position beyond this junction surface 31,34 is to prominent from second 2 direction left and form multiple protuberances 41,44 that the skin side of oriented wearer is prominent.In composite sheet 10D, lengthwise junction surface 31 and the second direction junction surface row R that configures regularly with two or more interval L2, L4 of second direction Y corresponding to item width direction Ya, being formed multiple rows of on the first direction X corresponding with article length direction Xa, lengthwise junction surface 34 is formed at the second direction junction surface row R of first direction X to each other at second direction the 3rd junction surface row R3 that second direction Y configures at certain intervals.On the row R of the second direction junction surface of composite sheet 10D also as composite sheet 10, being configured off and on the interval L4 of more than 2 times of the first interval L2 in second direction Y 30 near the lengthwise junction surface that constituted, a pair lengthwise junction surface 31 of configuration with the first interval L2 by second direction Y, protuberance 41 is formed at the adjacent lengthwise junction surface of second direction Y to 30,30 to each other.More specifically, in including second direction junction surface row R, it is formed with protuberance 41 in total 6 lengthwise junction surfaces 31,34 area encompassed at two adjacent lengthwise junction surfaces 31 and row respective each 1 the lengthwise junction surface 34 of R3, R3, two second direction the 3rd junction surfaces adjacent with second direction junction surface row R for X in a first direction.
Additionally, in composite sheet 10D, total 6 lengthwise junction surfaces 31,34 area encompassed at the lengthwise junction surface 31 of each 2 (adding up to 4) in including adjacent on first direction X two second direction junction surfaces row R and two lengthwise junction surfaces 34 being formed in second direction the 3rd junction surface row R3 that first direction X is positioned between the row R of these second direction junction surfaces is formed with aspect ratio protuberance 41 height and the biggest protuberance 44 of the area of plane.For circular or elliptical shape when protuberance 41 and protuberance 44 are overlooked, protuberance 44 side overleaf has hollow bulb.Preferably protuberance 41 side overleaf also has hollow bulb.
Composite sheet 10D shown in Figure 12, the first roller 111 as the device shown in Fig. 8, use built-up gear and the first roller of distance piece in the way of the crest top land of gear becomes the configuration shown in Figure 13, and the second roller 112 as the device shown in Fig. 8, use built-up gear and the second roller of distance piece in the way of the crest top land of gear becomes the configuration shown in Figure 14, it is possible to manufacture in the same manner as the manufacture method of above-mentioned composite sheet 10.In this manufacture method, as shown in figure 13, side face at the first roller 111 is formed with formation presumptive area that is first roller first recess area 141A of protuberance 41 and formation presumptive area that is first roller the 4th recess area 144A of protuberance 44, on the other hand, the side face at the second roller 112 is formed with second roller the first protuberance 141B shown in Figure 14 and the second roller the 4th protuberance 144B.When the first roller 111 engages with the second roller 112, second roller the first protuberance 141B and first roller the first recess area 141A are fitted together to, thus, first 1 deformation produces multiple protuberances 41, and the second roller the 4th protuberance 144B and the first roller the 4th recess city 144A is fitted together to, thus first 1 deformation produces multiple protuberances 44.And, in the case of maintaining this state, second engages with first and obtains composite sheet 10D.According to absorbent commodities such as the disposable diapers using composite sheet 10D as positive dough sheet 12, under wearing effect, play the effect as the diaper of above-mentioned embodiment.
It addition, in the composite sheet used in this utility model, first and second chip bonding of stacking and the junction surface that formed, it is also possible to the most part thereof of junction surface is the lengthwise junction surface grown on the first direction X be equivalent to article length direction.Such as, the junction surface 34 of composition second direction the 3rd junction surface in composite sheet 10D row R3, replace the junction surface of elongate shape, it is also possible to be the square shape that the length of the length of first direction X and second direction is equal.It addition, as the junction surface 34 constituting second direction the 3rd junction surface row R3, it is possible to so that the mixing such as the junction surface of the lengthwise junction surface of first direction X length and square shape.
For above-mentioned embodiment, this utility model is also disclosed following absorbent commodity.
(1) a kind of absorbent commodity, it includes positive dough sheet, back sheet and the absorber being configured between the two sheet, and has along the article length direction in direction before and after wearer and the item width direction orthogonal with this article length direction when wearing,
Described positive dough sheet is made up of the composite sheet with first direction and orthogonal to that second direction, and first direction is consistent along the article length direction in direction before and after wearer with when wearing,
In described composite sheet, the first of stacking and second are partially engageable with and form multiple junction surface, and first position beyond described junction surface is prominent to the direction leaving second, forms the multiple protuberances prominent to the skin side of wearer,
All or part of of described junction surface is the lengthwise junction surface of the elongate shape that length along a first direction is longer than the length along second direction, described composite sheet is formed multiple rows of second direction junction surface row in a first direction, described second direction junction surface row is that described lengthwise junction surface configures with two or more intervals regularly in second direction
It is formed with described protuberance in the junction surface area encompassed that the total at two described lengthwise junction surfaces adjacent in including second direction junction surface row is more than 4.
(2) according to the absorbent commodity described in (1), wherein,
Arranging as second direction junction surface, second direction the first junction surface row that the allocation position at the lengthwise junction surface being alternatively formed in a first direction in second direction is mutually different arranges with second direction the second junction surface.
(3) according to the absorbent commodity described in (1) or (2), wherein,
In the row R of second direction junction surface, as interval to each other, the lengthwise junction surface 31 in second direction, having the first interval L2 and the second interval L4 wider for interval L2 than first, the multiple lengthwise junction surfaces 31 in the row R of second direction junction surface configure off and in second direction Y in the way of alternately having both intervals in second direction.
(4) according to the absorbent commodity recorded any one of (1)～(3), wherein,
In second direction junction surface is arranged, being configured off and on the interval L4 of more than 2 times of the first interval in second direction near the lengthwise junction surface that constituted, lengthwise junction surface described in a pair of configuration with the first interval L2 by second direction, described protuberance is formed at the adjacent lengthwise junction surface of second direction each other.
(5) absorbent commodity recorded according to (3) or (4), wherein,
Above-mentioned interval L4 is preferably more than 2 times of above-mentioned interval L2, more preferably more than 2.5 times, additionally, it is preferred that be less than 5 times, and more preferably less than 4 times.
(6) absorbent commodity recorded according to (4) or (5), wherein,
Less than 2 times that the first interval L2 is the length on a pair respective first direction in above-mentioned lengthwise junction surface at this lengthwise junction surface pair of composition of above-mentioned lengthwise junction surface pair.
(7) according to the absorbent commodity recorded any one of (4)～(6), wherein,
The first interval L2 at above-mentioned lengthwise junction surface pair is preferably less than 2 times relative to length L3 on a pair lengthwise junction surface respective first direction X constituting this lengthwise junction surface pair, more preferably less than 1.5 times, additionally, it is preferred that be on 0.1 times, more preferably more than 0.2 times.
(8) according to the absorbent commodity recorded any one of (4)～(7), wherein,
Above-mentioned lengthwise junction surface is to being configured to tilt clathrate.
(9) according to the absorbent commodity recorded any one of (1)～(8), wherein,
The surface of second side of above-mentioned composite sheet is generally flat.
(10) according to the absorbent commodity recorded any one of (1)～(9), wherein,
The sheet material and composition the second sheet material that constitute first are non-woven fabrics.
(11) according to the absorbent commodity recorded any one of (1)～(10), wherein,
The grammes per square metre of the non-woven fabrics used as the sheet material constituting first 1 and second 2 is preferably 10g/m2Above, more preferably 15g/m2Above, additionally, it is preferred that be 40g/m2Hereinafter, more preferably 35g/m2Hereinafter, additionally, it is preferred that be 10g/m2Above 40g/m2Hereinafter, more preferably 15g/m2Above 35g/m2Below.
(12) according to the absorbent commodity recorded any one of (1)～(11), wherein,
First and second are high density, and thermal welding between the sheet of two, above-mentioned lengthwise junction surface compared with other any parts at above-mentioned lengthwise junction surface.
(13) according to the absorbent commodity recorded any one of (1)～(12), wherein,
The length of the lengthwise junction surface X in a first direction constituting each second direction junction surface row R is consistent with allocation position.
(14) according to the absorbent commodity recorded any one of (1)～(13), wherein,
In a first direction X-shaped become have plurality of rows of second direction junction surface row R lengthwise junction surface 31 in second direction Y allocation position consistent every a row.
(15) according to the absorbent commodity recorded any one of (1)～(14), wherein,
It is formed with raised part in 6 junction surface areas encompassed of total at two lengthwise junction surfaces adjacent in including second direction junction surface row R.
(16) according to the absorbent commodity recorded any one of (1)～(15), wherein,
Raised part is configured to include: the first direction protuberance row 4X of multiple protuberances X linear array the most in a first direction；Multiple protuberances arrange 4Y at the second direction protuberance of second direction Y linear array at certain intervals；With multiple protuberances at certain intervals at the third direction protuberance row 4XY of the third direction linear array tilted relative to first direction X and second direction Y both direction.
(17) according to the absorbent commodity recorded any one of (1)～(16), wherein,
Described protuberance is configured to include: the first direction protuberance row 4X of multiple protuberances X linear array the most in a first direction；4Y is arranged at the second direction protuberance of second direction Y linear array at certain intervals with multiple protuberances,
The allocation position of adjacent for X in a first direction second direction protuberance row's 4Y protuberance each other staggers half pitch in second direction Y, and the allocation position at the adjacent first direction protuberance row's 4X protuberance each other of second direction Y staggers half pitch in a first direction.
(18) absorbent commodity recorded according to (16) or (17), wherein,
It is formed with, between the lengthwise junction surface adjacent with narrow interval L2 of second direction protuberance row R, the second protuberance that protuberance described in aspect ratio is low.
(19) according to the absorbent commodity recorded any one of (16)～(18), wherein,
It is formed with, between the nearest junction surface of the most adjacent second direction protuberance row R, the 3rd protuberance that protuberance described in aspect ratio is low.
(20) absorbent commodity recorded according to (19), wherein,
It is formed at a protuberance of described composite sheet and is separated by the annular recessed portion surrounding 6 junction surfaces of this protuberance and low the second protuberance of this protuberance of aspect ratio of being positioned between these junction surfaces and the 3rd protuberance is constituted adjacent between other protuberance of this protuberance.
(21) according to the absorbent commodity recorded any one of (1)～(20), wherein,
Length L3 of above-mentioned lengthwise junction surface X along a first direction is preferably more than 0.5mm, more preferably more than 1mm, additionally, it is preferred that be below 10mm, more preferably below 5mm.
(22) according to the absorbent commodity recorded any one of (1)～(21), wherein,
Above-mentioned lengthwise junction surface is preferably more than 0.1mm along length L1 of second direction X, more preferably more than 0.5mm, additionally, it is preferred that be below 5mm, more preferably below 3mm.
(23) according to the absorbent commodity recorded any one of (1)～(22), wherein,
Above-mentioned lengthwise junction surface along second direction Y length L1 be preferably the most along a first direction X length L3 less than 70%, more preferably less than 50%, additionally, it is preferred that be more than 20%, more preferably more than 30%.
(24) according to the absorbent commodity recorded any one of (1)～(23), wherein,
In the row R of second direction junction surface, the narrowest interval L2 between lengthwise junction surface 31 is preferably more than 0.2mm, more preferably more than 0.8mm, additionally, it is preferred that be below 10mm, more preferably below 5mm.
(25) according to the absorbent commodity recorded any one of (1)～(24), wherein,
In the row R of second direction junction surface, the widest interval L4 between lengthwise junction surface 31 is preferably more than 1mm, more preferably more than 2mm, additionally, it is preferred that be below 20mm, more preferably below 10mm.
(26) according to the absorbent commodity recorded any one of (1)～(25), wherein,
Second direction junction surface row R interval W to each other on first direction X is preferably more than 0.2mm, and more preferably more than 0.5mm, additionally, it is preferred that be below 10mm, more preferably below 5mm.
(embodiment)
Hereinafter, by embodiment, illustrate in greater detail this utility model.But, scope of the present utility model is not limited to this embodiment.
(embodiment 1)
Use the device shown in Fig. 7～Figure 11, manufacture the composite sheet 10 shown in Fig. 3～Fig. 6.As becoming the raw-material first 1 of composite sheet 10 and second 2, using by grammes per square metre is 18g/m2, fiber number be 2.2dtex polyethylene/polyethylene terephthalate sheath-core type conjugate fiber constitute hot-wind nonwoven cloth.Making first gear the 121, second gear 122 of manufacture device and the thickness of distance piece is all 1mm.First heating roller 113 is heated to 120 DEG C, and the second heating roller 114 is heated to 200 DEG C.First roller 111 attracts inside roller from the recess of its side face, carries out the concavo-convex shaping of first 1 in this condition.
The grammes per square metre of composite sheet 10 entirety so obtained is 41g/m2, the height H1 of the first protuberance 41 is 2.0mm, and the height of the second protuberance 42 is 1.0mm, and the height of the 3rd protuberance 43 is 0.3mm.It addition, length L3 of the first direction X at lengthwise junction surface 31 is 2.5mm, length L1 of second direction Y is 1mm, and the first interval L2 of second direction junction surface row R is 1mm, and the second interval L4 is 3mm, and the width W between the row R of second direction junction surface is 0.6mm.
(comparative example 1)
It is applied in combination the first other gear and distance piece as the first roller in embodiment 1 and the second roller, obtains the composite sheet being partially engageable with junction surface 35 between the first of stacking and second with pattern shown in Figure 16.The grammes per square metre of the composite sheet entirety of gained is 41g/m2, in each region surrounded by 6 junction surfaces 35, it being formed with protuberance 41, the height of these protuberances 41 is 1.7mm.It addition, junction surface 35 is the square shape of a length of 1mm on a limit, the second direction junction surface row R ' that junction surface 35 configures with 2 kinds of intervals L2, L4 regularly in second direction Y becomes to have multiple rows of throughout first direction X-shaped, and interval L2 is 1mm, and interval L4 is 3mm.
(evaluation)
Take out the positive dough sheet of disposable diaper i.e. " the dry and comfortable ventilative S size of Merries (registered trade mark) " (system in 2014) of Kao Corp, replace its positive dough sheet, the composite sheet obtained in embodiment and comparative example is fixed as positive dough sheet, as the diaper sample of test.
So that the state that the diaper sample of test bends in the same manner as wearing effect, measure the crotch region (4x4cm being set in crotch2) positive dough sheet convex form damage rate by pressure.
(assay method of the rate of damaging by pressure of convex form)
By the convex form of the positive dough sheet of visualization, using the protuberance of the part depression of convex form as damaging protuberance by pressure, calculate and measure region (4 × 4cm2The number damaging protuberance by pressure in).The rate of damaging by pressure (%) is calculated based on following formula.
Damage rate (%)=(numbers of the whole protuberances in the number damaging protuberance by pressure/mensuration region in mensuration region) × 100 by pressure
It addition, for person any in embodiment and comparative example, the most there is not the protuberance that the entirety of convex form is damaged by pressure.
The result of the mensuration damaging rate by pressure is able to confirm that, for embodiment 1, the rate of damaging by pressure is 10%, and on the other hand, in comparative example 1, the rate of damaging by pressure is 21%, and the composite sheet of embodiment 1 stably remains concavo-convex convex compared with the composite sheet of comparative example 1.Convex form can be stably maintained, it is possible to suppress the generation of the wrinkle of the irregular positive dough sheet produced because protuberance damages by pressure in diaper wearing effect.
Industrial applicability
Even if absorbent commodity of the present utility model concavo-convex protuberance of positive dough sheet under wearing effect is also difficult to damage by pressure, positive dough sheet is not easy to produce wrinkle, so anti-leakage is the most excellent.
Claims (26)
1. an absorbent commodity, it includes positive dough sheet, back sheet and the absorber being configured between the two sheet, and having along the article length direction in direction before and after wearer and the item width direction orthogonal with this article length direction when wearing, described absorbent commodity is characterised by:
Described positive dough sheet is made up of the composite sheet with first direction and orthogonal to that second direction, and first direction is consistent along the article length direction in direction before and after wearer with when wearing,
In described composite sheet, the first of stacking and second are partially engageable with and form multiple junction surface, and first position beyond described junction surface is prominent to the direction leaving second, forms the multiple protuberances prominent to the skin side of wearer,
All or part of of described junction surface is the lengthwise junction surface of the elongate shape that length along a first direction is longer than the length along second direction, described composite sheet is formed multiple rows of second direction junction surface row in a first direction, described second direction junction surface row is that described lengthwise junction surface configures with two or more intervals regularly in second direction
It is formed with described protuberance in the junction surface area encompassed that the total at two described lengthwise junction surfaces adjacent in including second direction junction surface row is more than 4.
2. absorbent commodity as claimed in claim 1, it is characterised in that:
Arranging as second direction junction surface, second direction the first junction surface row that the allocation position at the lengthwise junction surface being alternatively formed in a first direction in second direction is mutually different arranges with second direction the second junction surface.
3. absorbent commodity as claimed in claim 1, it is characterised in that:
In the row of second direction junction surface, as interval to each other, the lengthwise junction surface in second direction, having the first interval (L2) and second interval (L4) wider than the first interval (L2), the multiple lengthwise junction surfaces in the row of second direction junction surface configure off and in second direction in the way of alternately having both intervals in second direction.
4. absorbent commodity as claimed in claim 1, it is characterised in that:
In second direction junction surface is arranged, being configured off and on the interval (L4) of the first more than 2 times be spaced in second direction near the lengthwise junction surface that constituted, lengthwise junction surface described in a pair of configuration with the first interval (L2) by second direction, described protuberance is formed at the adjacent lengthwise junction surface of second direction each other.
5. absorbent commodity as claimed in claim 3, it is characterised in that:
Described interval (L4) is more than 2 times less than 5 times of described interval (L2).
6. absorbent commodity as claimed in claim 4, it is characterised in that:
Less than 2 times of the length that first interval (L2) at described lengthwise junction surface pair is the respective first direction in lengthwise junction surface described in a pair of this lengthwise junction surface pair of composition.
7. absorbent commodity as claimed in claim 4, it is characterised in that:
First interval (L2) at described lengthwise junction surface pair is less than 2 times more than 0.1 times relative to the length (L3) of a pair respective first direction in lengthwise junction surface constituting this lengthwise junction surface pair.
8. absorbent commodity as claimed in claim 4, it is characterised in that:
Described lengthwise junction surface is to being configured to tilt clathrate.
9. absorbent commodity as claimed in claim 1, it is characterised in that:
The surface of second side of described composite sheet is generally flat.
10. absorbent commodity as claimed in claim 1, it is characterised in that:
The sheet material constituting first and the sheet material constituting second are non-woven fabrics.
11. absorbent commodities as claimed in claim 1, it is characterised in that:
The grammes per square metre of the non-woven fabrics used as the sheet material constituting first and second is 10g/m2Above 40g/m2Below.
12. absorbent commodities as claimed in claim 1, it is characterised in that:
First and second are high density, and thermal welding between the sheet of two, described lengthwise junction surface compared with other parts at described lengthwise junction surface.
13. absorbent commodities as claimed in claim 1, it is characterised in that:
Constitute the lengthwise junction surface arranged at each second direction junction surface length in a first direction consistent with allocation position.
14. absorbent commodities as claimed in claim 1, it is characterised in that:
Form plurality of rows of second direction junction surface row in a first direction, consistent every the allocation position at row lengthwise junction surface in a second direction.
15. absorbent commodities as claimed in claim 1, it is characterised in that:
It is formed with described protuberance in 6 junction surface areas encompassed of total at two lengthwise junction surfaces adjacent in including second direction junction surface row.
16. absorbent commodities as claimed in claim 1, it is characterised in that:
Described protuberance is configured to include that the first direction protuberance row of multiple protuberance linear array the most in a first direction, multiple protuberance are arranged at the third direction protuberance of the third direction linear array tilted relative to first direction and second direction the two direction at certain intervals the second direction protuberance row of second direction linear array and multiple protuberance at certain intervals.
17. absorbent commodities as claimed in claim 1, it is characterised in that:
Described protuberance is configured to include that the first direction protuberance row of multiple protuberance linear array the most in a first direction and multiple protuberances are arranged at the second direction protuberance of second direction linear array at certain intervals,
The allocation position of the most adjacent second direction protuberance row protuberance each other staggers half pitch in second direction, and the allocation position at the adjacent first direction protuberance row of second direction protuberance each other staggers half pitch in a first direction.
18. absorbent commodities as claimed in claim 16, it is characterised in that:
It is formed with, between the lengthwise junction surface adjacent with narrow interval (L2) of second direction protuberance row, the second protuberance that protuberance described in aspect ratio is low.
19. absorbent commodities as claimed in claim 16, it is characterised in that:
It is formed with, between the nearest junction surface of the most adjacent second direction protuberance row, the 3rd protuberance that protuberance described in aspect ratio is low.
20. absorbent commodities as claimed in claim 19, it is characterised in that:
It is formed at a protuberance of described composite sheet and is separated by the annular recessed portion surrounding 6 junction surfaces of this protuberance and low the second protuberance of this protuberance of aspect ratio of being positioned between these junction surfaces and the 3rd protuberance is constituted adjacent between other protuberance of this protuberance.
21. absorbent commodities as claimed in claim 1, it is characterised in that:
Described lengthwise junction surface length (L3) along a first direction is more than 0.5mm below 10mm.
22. absorbent commodities as claimed in claim 1, it is characterised in that:
Described lengthwise junction surface is more than 0.1mm below 5mm along the length (L1) of second direction.
23. absorbent commodities as claimed in claim 1, it is characterised in that:
Described lengthwise junction surface is along length (L1) is length (L3) along a first direction less than the 70% more than 20% of second direction.
24. absorbent commodities as claimed in claim 1, it is characterised in that:
In the row of second direction junction surface, between lengthwise junction surface, the narrowest interval (L2) is more than 0.2mm below 10mm.
25. absorbent commodities as claimed in claim 1, it is characterised in that:
In the row of second direction junction surface, between lengthwise junction surface, the widest interval (L4) is more than 1mm below 20mm.
26. absorbent commodities as claimed in claim 1, it is characterised in that:
Second direction junction surface row on first direction interval (W) to each other is more than 0.2mm below 10mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-256911 | 2014-12-19 | ||
| JP2014256911A JP6431359B2 (en) | 2014-12-19 | 2014-12-19 | Absorbent articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205411476U true CN205411476U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521055567.5U Active CN205411476U (en) | 2014-12-19 | 2015-12-17 | Absorbent product |
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| Country | Link |
|---|---|
| JP (1) | JP6431359B2 (en) |
| CN (1) | CN205411476U (en) |
| RU (1) | RU165012U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109562004A (en) * | 2016-11-30 | 2019-04-02 | 花王株式会社 | Absorbent commodity |
| CN111386096A (en) * | 2017-11-22 | 2020-07-07 | 花王株式会社 | Absorbent article |
| US12109095B2 (en) | 2017-10-25 | 2024-10-08 | Kao Corporation | Absorbent article |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6860302B2 (en) * | 2016-07-14 | 2021-04-14 | 花王株式会社 | Absorbent article |
| RU200756U1 (en) * | 2020-05-20 | 2020-11-11 | Владимир Анатольевич Петряков | Disposable diaper |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5329806B2 (en) * | 2007-12-28 | 2013-10-30 | 花王株式会社 | Absorbent article surface sheet |
| JP6108435B2 (en) * | 2012-10-30 | 2017-04-05 | 大王製紙株式会社 | Manufacturing method of surface sheet |
-
2014
- 2014-12-19 JP JP2014256911A patent/JP6431359B2/en active Active
-
2015
- 2015-12-17 CN CN201521055567.5U patent/CN205411476U/en active Active
- 2015-12-18 RU RU2015154485/12U patent/RU165012U1/en active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109562004A (en) * | 2016-11-30 | 2019-04-02 | 花王株式会社 | Absorbent commodity |
| CN109562004B (en) * | 2016-11-30 | 2021-04-20 | 花王株式会社 | Absorbent article |
| US11464682B2 (en) | 2016-11-30 | 2022-10-11 | Kao Corporation | Absorbent article |
| US12109095B2 (en) | 2017-10-25 | 2024-10-08 | Kao Corporation | Absorbent article |
| CN111386096A (en) * | 2017-11-22 | 2020-07-07 | 花王株式会社 | Absorbent article |
| US11617691B2 (en) | 2017-11-22 | 2023-04-04 | Kao Corporation | Absorbent article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016116583A (en) | 2016-06-30 |
| RU165012U1 (en) | 2016-09-27 |
| JP6431359B2 (en) | 2018-11-28 |
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