CN103906491A - Expanding disposable nappy - Google Patents

Expanding disposable nappy Download PDF

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Publication number
CN103906491A
CN103906491A CN201280053581.4A CN201280053581A CN103906491A CN 103906491 A CN103906491 A CN 103906491A CN 201280053581 A CN201280053581 A CN 201280053581A CN 103906491 A CN103906491 A CN 103906491A
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CN
China
Prior art keywords
region
elastomeric element
diaper
extensible member
stretching region
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Granted
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CN201280053581.4A
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Chinese (zh)
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CN103906491B (en
Inventor
铃木彦行
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Kao Corp
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Kao Corp
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Publication of CN103906491B publication Critical patent/CN103906491B/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577Apparatus or processes for manufacturing
    • A61F13/15585Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
    • A61F13/15593Apparatus or processes for manufacturing of babies' napkins, e.g. diapers having elastic ribbons fixed thereto; Devices for applying the ribbons
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007Form-fitting, self-adjusting disposable diapers
    • A61F13/49009Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49011Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region

Abstract

The expanding disposable nappy (1A) of the present invention includes a surface sheet (2), a reverse side sheet (3), and a long absorbent body (4) arranged between these sheets (2, 3), which are classified as the ventral portion (A), the dorsal portion (B), and the inguinal portion (C). Fastening tape (51) is provided on both edges of the dorsal portion (B) of the nappy (1A). A stretchable member (7) is provided between the pair of fastening tapes (51, 51) in the nappy (1A). When viewed from the surface sheet (2) above the dorsal portion (B) of the nappy (1A), the stretching force in the width (X-axis) direction of the left tab region (7L) between the left-side fastening tape (51) and the absorbent body (4) is greater than the stretching force in the width (X-axis) direction of the right tab region (7R) between the right-side fastening tape (51) and the absorbent body (4).

Description

The disposable diaper of deploying type
Technical field
The present invention relates to the flat type disposable diaper of child's use or adult's use.
Background technology
Conventionally the disposable diaper of deploying type symmetrically forms.For example, in patent documentation 1, recorded following flat type disposable diaper, it is to have face sheet, back-sheet and the absorber between these sheet materials, and there is the diaper of waist gauffer, form elastic telescopic parts percentage elongation configuration with regulation at assigned position of waist gauffer.
Patent documentation 1: Japanese kokai publication hei 08-071103 communique.
Summary of the invention
In patent documentation 1, disclose the disposable diaper of deploying type, dressed easily and in wearing, there is sufficient retractility, the property excellence next to the skin of the waist portion to wearer.But the disposable diaper of recording in patent documentation 1 symmetrically forms, and therefore, has designed the identical flexible physical property in left and right.When protector or caregiver dress the disposable diaper of deploying type to child or by caregiver, conventionally, make child or lain on disposable diaper by caregiver, after the pull stap of fixed party, then fixing the opposing party's pull stap.Present inventor's discovery, because with such order fixed agraffe band, so in the time dressing flat type disposable diaper, the flexible physical property difference that left and right needs.Like this, the easiness aspect of the wearing of flat type disposable diaper also has room for improvement.
The present invention is a kind of flat type disposable diaper, and it comprises face sheet, back-sheet and the absorber of the lengthwise that configures between these sheet materials, is divided into veutro portion, drosal part and crotch.In this disposable diaper, be respectively arranged with pull stap in the both side edges portion of drosal part.In addition, the present invention disposes extensible member each other at a pair of above-mentioned pull stap, make drosal part be positioned at top, while overlooking from face sheet side, the contractility to width in the left wing region between above-mentioned pull stap and the above-mentioned absorber in left side is greater than the contractility to width in the right flank region between above-mentioned pull stap and the above-mentioned absorber on right side.
Accompanying drawing explanation
Fig. 1 sees that from face sheet side the part of state that makes the flat type disposable diaper of the first embodiment of the present invention extend expansion blocks plane graph.
Fig. 2 is the X1-X1 sectional view of Fig. 1.
Fig. 3 blocks plane graph for the part of the composite extensible member 7A that the diaper shown in Fig. 1 has.
Fig. 4 is the schematic diagram representing for the manufacture of the preferred embodiment of the composite extensible member 7A shown in Fig. 3.
Fig. 5 is the schematic diagram representing for the manufacture of the preferred embodiment of the diaper shown in Fig. 1.
Fig. 6 sees that from face sheet side the diaper of the second embodiment of the present invention extends the plane graph of the major part of the state of expansion.
Fig. 7 sees that from face sheet side the diaper of the 3rd embodiment of the present invention extends the plane graph of the major part of the state of expansion.
Fig. 8 sees that from face sheet side the diaper of the 4th embodiment of the present invention extends the plane graph of the major part of the state of expansion.
Fig. 9 sees that from face sheet side the diaper of the 5th embodiment of the present invention extends the plane graph of the major part of the state of expansion.
The specific embodiment
Below, based on its preferred the first embodiment, with reference to Fig. 1~Fig. 5, flat type disposable diaper of the present invention is described.
The flat type disposable diaper 1A (below also referred to as " diaper 1A ") of the first embodiment, the flat type disposable diaper of using for child, as shown in Figure 1, the absorber 4 of the lengthwise that has the back-sheet 3 of the face sheet 2 of liquid permeability, difficult liquid permeability and configure between these sheet materials 2,3, is divided into the A of veutro portion, drosal part B and crotch C.
The A of veutro portion is positioned at the position of the veutro of wearer while being wearing, drosal part B is positioned at the position of the dorsal part of wearer while being wearing, and crotch C is the position being configured between the A of veutro portion and drosal part B.
In addition, the length direction of " Y-direction " shown in each figure and absorber 4 is equidirectional, with the length direction of diaper be equidirectional.In addition, " directions X " shown in each figure is the direction identical with the width of absorber 4, with the width of diaper be equidirectional.
Diaper 1A, as shown in Figure 1, the both side edges of crotch C alongst (Y-direction) forms concavity (circular-arc), as a whole, has the hourglass shape of the central part shrinking of length direction (Y-direction).
Diaper 1A is respectively arranged with pull stap 51 in the both side edges portion of drosal part B.Specifically, as shown in Figure 1, diaper 1A comprises a pair of pull stap 51,51 extending from the both side edges of alongst (Y-direction) of drosal part B to width (directions X) foreign side, has and the target sheet material 52 of pull stap 51 combinations at the A of veutro portion.Diaper 1A, in the time dressing, by by target sheet material 52 combinations of a pair of pull stap of drosal part B 51,51 and the A of veutro portion, forms waist peristome and pair of leg peristome.
The absorber 4 of diaper 1A, as shown in Figure 1, is formed as longer rectangular shape on length direction (Y-direction).
In diaper 1A, face sheet 2 is formed as the essentially rectangular shape larger than the overall dimensions of absorber 4, and back-sheet 3 is formed as the hourglass-shaped shape consistent with the outer shape of diaper.
Face sheet 2 and back-sheet 3 be whole and whole of non-skin opposite face side of cover skin opposite face side respectively, extend out from the periphery (along the both side edges of length direction (Y-direction) and two ora terminalis of length direction (Y-direction) of absorber 4) of absorber 4, mutually directly or indirectly engage at these extensions.The both side edges alongst of back-sheet 3 extends out to width (directions X) foreign side from the both side edges of alongst (Y-direction) of face sheet 2.
In diaper 1A, both sides 1s, the 1s of (Y-direction) alongst, by configuring each elastomeric element 63,64, be formed with three-dimensional gauffer 61 and be more positioned at the leg creases 62 of width (directions X) foreign side than three-dimensional gauffer 61.Specifically, a pair of three- dimensional gauffer 61,61 uses respectively three-dimensional gauffer formation sheet material 65 to form.Three-dimensional gauffer 61 forms by following method: by three-dimensional gauffer form with sheet material 65 turn back two-layer more than, at more than one elastomeric element 63 at the upper configuration of length direction (Y-direction) elongation state between the sheet material of turning back, the three-dimensional gauffer formation sheet material 65 that disposes elastomeric element 63 is configured to interior side from width (directions X) foreign side of the lateral margin of face sheet 2.The three-dimensional gauffer that disposes elastomeric element 63 forms with sheet material 65, between the lateral margin and leg elastic members described later 64 of absorber 4, by the known adhesive means of heat-sealing, bonding agent etc., on diaper length direction (Y-direction), be fixed on face sheet 2, utilize this fixed part to form the cardinal extremity that erects of three-dimensional gauffer 61.The three-dimensional gauffer 61 so forming by the contraction of elastomeric element 63, leaves the part of free end Rack and leaves from face sheet 2 in the time dressing, towards edge-on of the skin of wearer.
In the sidepiece 1s of diaper 1A, as shown in Figure 1, three-dimensional gauffer forms uses sheet material 65 to extend to width (directions X) foreign side, form with between the extension and back-sheet 3 of sheet material 65 at three-dimensional gauffer, in more than 1 leg elastic members 64 of the upper configuration of length direction (Y-direction) elongation state, by known joint method, form and grip leg elastic members 64 by extension and the back-sheet 3 of sheet material 65 by three-dimensional gauffer.So, leg elastic members 64 is fixing with elongation state configuration at length direction (Y-direction), therefore, when wearing, by the contractility of this elastomeric element 64, forms leg creases 62 in crotch C.
Flat type disposable diaper of the present invention disposes extensible member 7 each other at a pair of pull stap 51,51, make above drosal part B is positioned at, while overlooking from face sheet 2 sides, when state as shown in Figure 1, the contractility to width (directions X) of the region 7L of left wing between pull stap 51 and the absorber 4 in left side forms greatlyr than the contractility to width (directions X) of the right flank region 7R between the pull stap on right side 51 and absorber 4.Extensible member 7 in diaper 1A, the wide composite extensible member 7A of ratio absorber 4 width forming for configure elastomeric element 73 between sheet material 71,72.Composite extensible member 7A, as shown in Figure 1 and Figure 2, configuration between absorber 4 and back-sheet 3, configure each other at a pair of pull stap 51,51, therefore, the contractility to width (directions X) of diaper 1A left-wing region 7L forms greatlyr than the contractility to width (directions X) of right flank region 7R.In addition, about left side and right side, as mentioned above, mean left side and right side in state as shown in Figure 1, mean specifically, as shown in Figure 1, launching to expand under the state of diaper 1A, the drosal part B side of diaper 1A is configured in to the dorsal part (head side) of wearer, and then left side and right side while overlooking from face sheet 2 sides.
Can measure as follows in this " contractility to width (directions X) in territory, pterion ".
In the diaper 1A of state shown in Fig. 1, by the region between the pull stap in left side 51 and absorber 4, cut out on directions X 90mm for containing non-pars contractilis more than 10mm on both sides, be the rectangular shape of 80mm in the Y direction, this sample cutting out is the sample of the region 7L of left wing.Non-pars contractilis is not gone up in situation more than 10mm, cuts out the sample of the region 7L of left wing partly to comprise absorber 4 and/or the such mode in not flexible region in fact of pull stap 51.Equally, by the region between the pull stap on right side 51 and absorber 4, cut out on directions X 90mm for containing non-pars contractilis more than 10mm on both sides, be the rectangular shape of 80mm in the Y direction, this cuts out the sample that sample is right flank region 7R.Non-pars contractilis is not in situation more than 10mm, cuts out the sample of right flank region 7R partly to comprise absorber 4 and/or the such mode in not flexible region in fact of pull stap 51.To each sample of such preparation, use cupping machine (" tensilon " RTA-100 of the rientec of Co., Ltd. O), between fixture, for 30mm and to grip the mode fixed sample of 10mm part of non-pars contractilis, on directions X, stretch sample to former length with the speed of 300mm/min.Using the measured value of the maximum intensity of the data that each sample is obtained in each sample " contractility to width (directions X) in territory, pterion ".
Below, illustrate the composite extensible member 7A of diaper 1A.
The composite extensible member 7A of diaper 1A, as shown in Figure 1, be configured in each other impartial position, left and right at a pair of pull stap 51,51, as shown in Figure 3, in the region overlapping with absorber 4, there is the weak functionalization region 7Z of the Telescopic that reduces elastomeric element 73, in composite extensible member 7A than more the keep left contractility to width (directions X) of stretching region 70L of side of weak functionalization region 7Z, form greatlyr than the contractility to width (directions X) of 7Z stretching region 70R more on the right side in functionalization region a little less than the ratio in composite extensible member 7A.Specifically, composite extensible member 7A has compared with the length of the width (directions X) of absorber 42 sheet materials 71,72 of longer rectangular shape on directions X, elastomeric element 73 with many wire, between 2 sheet materials 71,72 in similar shape with size, by on directions X for the elastomeric element 73 of the wire of elongation state in the Y direction sky open many of compartment of terrain configurations, use the bonding agents such as hot melt 74 fixing, thereby form composite extensible member 7A.In the weak functionalization region 7Z in the region as overlapping with absorber 4, the elastomeric element 73 of many wire is cut to respectively multiple, and the elastomeric element compactly being cut off becomes the state that almost there is no contractility.
The composite extensible member 7A of diaper 1A, as shown in Figure 3, the average regular length of the elastomeric element 73 of the wire in the stretching region 70L in left side is greater than the average regular length of the elastomeric element 73 of the wire in the stretching region 70R on right side.At this, " the average regular length of elastomeric element 73 " means, to the elastomeric element 73 of the many wire in stretching region 70R, 70L configuration, measure in each elastomeric element 73 and use the regular length of bonding agent 74 with the fixing part of elongation state, these measured values that obtain by mensuration are averaging to the value obtaining.In the composite extensible member 7A of diaper 1A, as shown in Figure 3, bonding agent 74 be coated in the region corresponding with the stretching region 70L in left side, with region corresponding to the stretching region 70R on right side, region from the Y-direction foreign side part of the stretching region 70L in left side to the Y-direction foreign side part of the stretching region 70R on right side, apply as コ word shape roughly.The region corresponding with the stretching region 70L in the left side after adhesive-applying 74, than the stretching region 70R on the right side after adhesive-applying 74, the length that is formed as Y-direction is identical, but the length of directions X is longer.Utilize the elastomeric element 73 of the bonding agent 74 fixing wire of coating like this, therefore, in the composite extensible member 7A of diaper 1A, the average regular length of elastomeric element 73 of the wire in the stretching region 70L in left side is greater than the average regular length of the elastomeric element 73 of the wire in the stretching region 70R on right side, and the contractility of the elastomeric element 73 of the stretching region 70L in left side is larger than the contractility of the elastomeric element of the stretching region 70R on right side 73.
As onesize 2 sheet materials 71,72 of same shape that form composite extensible member 7A, as long as the parts that conventionally use in the absorbent commodities such as disposable diaper, just can be used without particular limitation, for example, can use the mass area ratio of the liquid permeability of monolayer or multiple structure is 10~25g/m 2the non-woven fabrics of scope etc.
As the elastomeric element 73 of wire that forms composite extensible member 7A, as long as the parts that conventionally use in the absorbent commodities such as disposable diaper, just can be used without particular limitation, for example, can use retractility material, the natural rubber of the wire of polyethylene-alpha olefin copolymer of comprising polyurethane, polystyrene-poly isoprene copolymer, polystyrene-poly butadiene copolymer, ethyl acrylate-ethylene etc. etc., particularly preferably use the retractility material of the wire that comprises polyurethane.Elastomeric element 73 single lines of wire are preferably dimensioned to be 310~940dtex, more preferably 470~780dtex.The elastomeric element 73 of such wire is preferably with more than 130%, and particularly preferably more than 150% elongation multiplying power configures.At this, extend multiplying power and refer to length after the elongation value divided by the length before extending.
The coating amount of the bonding agent 74 of hot melt etc. is preferably 1~10g/m 2, more preferably 2~4g/m 2.In addition, bonding agent also can directly be coated on the elastomeric element 73 of wire, and coating amount is in this case preferably 0.010~0.030g/m, more preferably 0.015~0.025g/m.
In the composite extensible member 7A of diaper 1A, setting apply contractility on the pull stap formerly engaging with object tape a little less than, contractility on the pull stap engaging with object tape after being applied to is stronger, can improve like this easiness of wearing, from this viewpoint, the average regular length of elastomeric element 73 of the wire in the stretching region 70L in left side is preferably 1.05~1.30 double-lengths of the average regular length of the elastomeric element 73 of the wire in the stretching region 70R on right side, more preferably 1.10~1.25 double-lengths.
The composite extensible member 7A forming like this, configuration between absorber 4 and back-sheet 3 on the thickness direction of diaper 1A, above configure each other at a pair of pull stap 51,51 at width (directions X), the contractility of the stretching region 70L in left side forms greatlyr than the contractility of the stretching region 70R on right side, therefore, the contractility to width (directions X) of the region 7L of left wing in diaper 1A forms greatlyr than the contractility to width (directions X) of right flank region 7R.In addition, in the composite extensible member 7A of configuration like this, when wearing, be positioned at than weak functionalization region 7Z and more lean on the elastomeric element 73 of many wire of the position of Y-direction foreign side to shrink, form waist gauffer at the circumference of waist peristome thus.And then, in the composite extensible member 7A of configuration like this, when wearing, the elastomeric element 73 that is positioned at many wire of width (directions X) two foreign sides of weak functionalization region 7Z shrinks, and is more forming waist gauffer by the position of crotch C side thus than waist gauffer.
In addition, the composite extensible member 7A of diaper 1A is configured between absorber 4 and back-sheet 3 on thickness direction, but also can be configured between face sheet 2 and absorber 4.
The composite extensible member 7A of diaper 1A, for example, uses the manufacturing installation 700 shown in Fig. 4 to manufacture.
Specifically, on the continuum 720 of the sheet material 72 of supplying with continuously from the blank roller 72a of sheet material 72, use adhesive applicating machine 740, with the stretching region 70R on the stretching region 70L corresponding to left side, right side, across the mode in the region of the scope of stretching region 70L and stretching region 70R, with roughly コ font, off and on adhesive-applying 74.Then, on the bonding agent 74 on the continuum 720 that is coated in sheet material 72, to extend as the multiple elastomeric elements 73 of state configuration of percentage elongation of regulation, and then to the continuum 710 of supplying with continuously sheet material 71 on it from the blank roller 71a of sheet material 71.Then, between a pair of pressure holding roller 701,702, as mentioned above, for giving elongation for the state of the percentage elongation of regulation clips the continuum 710 of sheet material 71 and the continuum 720 of sheet material 72 that many elastomeric elements 73 overlap, be formed on the continuum 70a (precursor of the continuum 70 of composite extensible member 7A) that disposes the composite component of many elastomeric elements 73 between the continuum 710 of sheet material 71 and the continuum 720 of sheet material 72 with elongation state.
Then, the continuum 70a of composite component (precursor of the continuum 70 of composite extensible member 7A) is supplied to precut device 703, be breaking at the many elastomeric elements 73 of the elongation state of the area configurations corresponding with weak functionalization region 7Z, make not manifest separately contractile function, manufacture the intermittently continuum 70 of the composite extensible member 7A of formation of weak functionalization region 7Z.Precut device 703 for example for have with TOHKEMY 2002-253605 communique in the parts of the roughly the same structure of the elastomeric element cutting portion that uses in the manufacture method of the composite extensible member recorded, have: the cut-out roller 704 that there is elastomeric element and cut off multiple recesses (not shown) of use at side face; With with the backing roll 705 of surface smoothing that cuts off roller 704 relative configuration.
Then, the continuum of composite extensible member 7A 70 is supplied to cutter sweep 706, this cutter sweep 706 has: the cutting roller 707 at side face with cutter (not shown); With the backing roll 708 of the surface smoothing of configuration relative to cutting roller 707, manufacture each composite extensible member 7A.
There is the above-mentioned diaper 1A of the composite extensible member 7A of manufacture described above, for example, use the manufacturing installation 100 shown in Fig. 5 to manufacture.
Specifically, as shown in Figure 5, by with the orthogonal direction of the throughput direction of this continuum 30 on longer composite extensible member 7A, the interval that uses conveyer belt 101 to separate regulation is supplied on the continuum 30 of back-sheet 3, and fixes via bonding agent.Then,, on the weak functionalization region 7Z in the each composite extensible member 7A on the continuum 30 that is disposed at back-sheet 3, in the mode overlapping with the end of the throughput direction of absorber 4, use conveyer belt 102 to supply with absorber 4, and fix by bonding agent.Outside this, the three-dimensional gauffer that is configured in respectively the elastomeric element 63 that disposes elongation state on throughput direction in the both side edges portion of the continuum 20 of face sheet 2 forms the continuum 650 with sheet material 65, and fixes by bonding agent, forms composite sheet 365.
Then, as shown in Figure 5, to disposing on absorber 4 on the continuum 30 of back-sheet 3 of weak functionalization region 7Z of each composite extensible member 7A, supply with composite sheet 365, and fix by bonding agent.In addition, while supplying with composite sheet 365 on the continuum 30 of sheet material 3 overleaf, between the each three-dimensional gauffer that forms composite sheet 365 forms with the continuum 650 of sheet material 65 and the continuum 30 of back-sheet 3, supply with is the leg elastic members 64 of elongation state on throughput direction, and fix by bonding agent, form the continuum of the precursor of diaper 1A.Then, the continuum of the precursor to diaper 1A, the part of configuration around the lower limb separately of the edge, both sides at this continuum is cut into circular-arc, afterwards, fixed agraffe band 51 affixed unit such as diaper such as grade, form the continuum 10 of diaper 1A, on throughput direction, between adjacent absorber 4, cut off, can manufacture continuously thus flat type disposable diaper 1A.
The formation material of the diaper 1A of present embodiment is described.
As face sheet 2, back-sheet 3 and absorber 4, the parts as long as conventionally using in the absorbent commodity of disposable diaper etc., just can be used without particular limitation respectively.For example, as face sheet 2, can use non-woven fabrics, the apertured film of liquid permeability etc. of the liquid permeability of monolayer or multiple structure.As back-sheet 3, can use the laminated body of resin molding, resin molding and the non-woven fabrics of opaque liquid or water-repellancy etc.As absorber 4, can use the aggregation of the fibers such as pulp fiber (also can for non-woven fabrics) or maintain therein the absorbent core of the granule of water absorbent polymer, the parts that the cored sheet material that forms with the thin paper by water penetration or non-woven fabrics is coated etc.In addition, form with sheet material 65 as three-dimensional gauffer, as long as the parts that conventionally use in the absorbent commodities such as disposable diaper, just can be used without particular limitation, can use the resin molding of opaque liquid or water-repellancy or the laminated body of resin molding and non-woven fabrics etc.As elastomeric element 63 and leg elastic members 64, can use the retractility material of the wire of polyethylene-alpha olefin copolymers such as comprising natural rubber, polyurethane, polystyrene-poly isoprene copolymer, polystyrene-poly butadiene copolymer, ethyl acrylate-ethylene etc.
As target sheet material 52, as long as the parts that conventionally use in flat type disposable diaper just can be used without particular limitation, for example, can enumerate the loop component with the surface texture that can engage with the engaging protrusion (not shown) of the hook face component of pull stap 51 described later.As such loop component, can use without particular limitation by structure that can engagement hook face component by pressure hook face component, can use non-woven fabrics that the various method for makings of spunbond, hot blast, sticky point formula, chemical adhesion etc. produce or for example, sunny side parts through the weaving cotton cloth of the formation such as braiding, various known mechanical face securing members described later.
Form hook face component and the plate substrate of pull stap 51, as long as the parts that conventionally use are just not particularly limited in flat type disposable diaper.For example, as hook face component, can use the sunny side parts in " Magic Tape (registered trade mark) " (manufacture of Kuraray company), " Quicklon (registered trade mark) " (manufacture of YKK company), " Magic Ross (registered trade mark) " (manufacture of Kanebo Bell Touch company) etc.As plate substrate, sheet or the non-woven fabrics etc. that can use the composite of the synthetic resin such as polyethylene, polypropylene, polyethylene terephthalate and two or more these synthetic resin to form.The engaging protrusion (not shown) of hook face component can be used the parts that are formed as anchor shape or hook-type etc.
Action effect when the diaper 1A of present embodiment that uses the invention described above is described.
Diaper 1A, the drosal part B shown in Fig. 1 in above, while overlooking from face sheet 2 sides, the contractility to width (directions X) of the region 7L of left wing between pull stap 51 and the absorber 4 in left side is greater than the contractility to width (directions X) of the right flank region 7R between pull stap 51 and the absorber 4 on right side.In such diaper 1A, the region 7L of left wing is greater than the contractility to width (directions X) of right flank region 7R to width (directions X) contractility, be not be therefore formed as symmetrical.Therefore, in the time dressing diaper 1A, while making child or caregiver (below also referred to as child etc.) lie on diaper 1, right flank region 7R compared with the region 7L of left wing more in the raw, less in the upper amount of contraction of width (directions X), therefore, there is the longer tendency of the extended Length Ratio right flank region 7R in oxter from child etc., no matter protector or caregiver (below also referred to as protector etc.) are practise righthanded or practise lefthanded and can both easily take the pull stap 51 on 7RCe right side, right flank region, because amount of contraction is little, so easily promptly make the pull stap 51 on right side touch the object tape 52 of the A of veutro portion.In addition, right flank region 7R contractility described above is less, and therefore, in the time that the pull stap 51 on 7RCe right side, right flank region engages with object tape 52, diaper 1A is difficult for from disengagings such as childs.
In addition, as shown in Figure 1, in diaper 1A, dispose each other composite extensible member 7A at a pair of pull stap 51,51, as shown in Figure 3, composite extensible member 7A has with the overlapping region of absorber 4 the weak functionalization region 7Z that the Telescopic of elastomeric element reduces, and the contractility to width (directions X) of the stretching region 70L in left side forms greatlyr than the contractility to width (directions X) of the stretching region 70R on right side.Therefore,, in diaper 1A, the contractility to width (directions X) of the region 7L of left wing is stably large than the contractility to width (directions X) of right flank region 7R.Thus; at the pull stap 51 on 7RCe right side, foregoing right flank region rapidly outside the advantage of contact target band; in the time of the pull stap 51 contact target band in the left side of left wing's region 7L side; for the child's etc. that makes to fit waist portion; the contractility adjusting range that protector etc. can adjust contractility is large; while using diaper 1A, protector etc. can wait and dress diaper 1A to child restfully.
In addition, the composite extensible member 7A of diaper 1A, as shown in Figure 3, by adjusting the average regular length of elastomeric element 73 of wire, the contractility to width (directions X) of the stretching region 70L in left side is formed greatlyr than the contractility to width (directions X) of the stretching region 70R on right side.Therefore, the control contractility that only change of the application pattern by bonding agent 74 just can be easy and stable, does not need complicated process equipment and high technology.
Then, based on Fig. 6, the flat type disposable diaper 1B to the second embodiment of the present invention (below also referred to as " diaper 1B ") describes.
To the diaper 1B explanation point different from the diaper 1A of the first embodiment of the second embodiment.Do not have the point of special instruction identical with diaper 1A, the explanation of suitable use diaper 1A.
In diaper 1B, as shown in Figure 6, composite extensible member 7B at a pair of pull stap 51,51 each other, is not configured in impartial position, left and right, and the configuration that keeps left.That is, the composite extensible member 7B of diaper 1B, as shown in Figure 6, is not to spread all over a pair of pull stap 51,51 to configure each other, but the configuration that keeps left.The composite extensible member 7B of diaper 1B is same with the composite extensible member 7A of diaper 1A, as shown in Figure 6, the average regular length of elastomeric element 73 of the wire of the stretching region 70L in left side is greater than the average regular length of the elastomeric element 73 of the wire in the stretching region 70R on right side, forms to such an extent that be greater than than the contractility to width (directions X) of weak functionalization region 7Z stretching region 70R more on the right side than more the keep left contractility to width (directions X) of stretching region 70L of side of weak functionalization region 7Z.The diaper 1B configuration that like this composite extensible member 7B of formation kept left, therefore, 1A is same with diaper, make as shown in FIG. 6 drosal part B in above and while overlooking from face sheet 2 sides, the contractility to width (directions X) of the region 7L of left wing between pull stap 51 and the absorber 4 in left side is greater than the contractility to width (directions X) of the right flank region 7R between pull stap 51 and the absorber 4 on right side.
The composite extensible member 7B of diaper 1B is same with the composite extensible member 7A of diaper 1A, uses the manufacturing installation 700 shown in Fig. 4 to manufacture.Specifically, same with the composite extensible member 7A of diaper 1A, be formed between the connector 710 of sheet material 71 and the connector 720 of sheet material 72 with elongation state dispose the composite component of many elastomeric elements 73 continuum 70a (with the precursor phase of the continuum 70 of composite extensible member 7A with), then, the continuum 70a of composite component is supplied to pre-cutting device 703, manufactures the continuum 70 that is intermittently formed with the composite extensible member 7A of weak functionalization region 7Z.The continuum 70 of the composite extensible member 7A producing is like this supplied to cutter sweep 706 and cuts, make compared with the composite extensible member 7A with diaper 1A, shorter than the length on the width (directions X) of weak functionalization region 7Z stretching region 70R more on the right side, manufacture continuously thus the composite extensible member 7B of diaper 1B.
The action effect of the diaper 1B of the second embodiment to use the invention described above describes.
The effect explanation point different from the effect of the diaper 1A of the first embodiment of diaper 1B to the second embodiment.Do not have the point of special instruction same with the effect of diaper 1A, the explanation of the effect of suitable use diaper 1A.
As shown in Figure 6, diaper 1B can make as the use amount of sheet material 71,72 and elastomeric element 73 etc. of material that forms composite extensible member 7B less.Therefore, can reduce the rigidity of waist portion, improve property next to the skin, and increase aeration by the minimizing of material, and then can suppress cost.
The flat type disposable diaper 1C (below also referred to as " diaper 1C ") of the 3rd embodiment of the present invention then, is described based on Fig. 7.
To the diaper 1C explanation point different from the first embodiment diaper 1A of the 3rd embodiment.Do not have the point of special instruction same with diaper 1A, the explanation of suitable use diaper 1A.
As shown in Figure 7, diaper 1C is same with the composite extensible member 7A of diaper 1A, composite extensible member 7C is in the left and right configuration equably each other of a pair of pull stap 51,51, but, the weak functionalization region 7Z of composite extensible member 7C extends to the stretching region 70R side on right side, and the contractility to width (directions X) of the stretching region 70L in left side forms greatlyr than the contractility to width (directions X) of the stretching region 70R on right side.Diaper 1C forms by the composite extensible member 7C forming being like this configured between a pair of pull stap 51,51 to impartial position, left and right, therefore, 1A is same with diaper, make as shown in Figure 7 drosal part B in above and while overlooking from face sheet 2 sides, the contractility to width (directions X) of the region 7L of left wing between pull stap 51 and the absorber 4 in left side is greater than the contractility to width (directions X) of the right flank region 7R between pull stap 51 and the absorber 4 on right side.
The composite extensible member 7C of diaper 1C is same with the composite extensible member 7A of diaper 1A, uses the manufacturing installation 700 shown in Fig. 4 to manufacture.Specifically, same with the composite extensible member 7A of diaper 1A, be formed between the continuum 710 of sheet material 71 and the continuum 720 of sheet material 72 with elongation state dispose the composite component of many elastomeric elements 73 continuum 70a (with the precursor phase of the continuum 70 of composite extensible member 7A with).Then, the continuum 70a of composite component is supplied with to pre-cutting device 703, compared with the composite extensible member 7A of diaper 1A, the weak functionalization region 7Z that weak functionalization region 7Z extends to the stretching region 70R side on right side intermittently forms, and manufactures the continuum 70 of composite extensible member 7C.The continuum 70 of the composite extensible member 7C so manufacturing is supplied to cutter sweep 706, same with the composite extensible member 7A of diaper 1A, by cutting continuous manufacture composite extensible member 7C.
Action effect when using the diaper 1C of above-mentioned the 3rd embodiment of the present invention describes.
The effect explanation point different from the effect of the diaper 1A of the first embodiment of diaper 1C to the 3rd embodiment.Do not have the point of special instruction identical with the effect of diaper 1A, the explanation of the effect of suitable use diaper 1A.
As shown in Figure 7, diaper 1C can only control contractility by the application pattern that changes bonding agent 74, does not need complicated process equipment and high technology.In addition, the stretching region 70R on right side is positioned at the foreign side of width (directions X).Therefore, when being worn on child and waiting, stretching region 70R is not the back side of touching child's etc. waist portion, but touches the position near sidepiece, heaves the abdominal circumference waiting change when wearing with respect to child's etc. abdominal part, and the waist of diaper 1C easily extends, and property next to the skin is high.
The flat type disposable diaper 1D (below also referred to as " diaper 1D ") of the 4th embodiment of the present invention then, is described based on Fig. 8.
To the diaper 1D explanation point different from the diaper 1A of the first embodiment of the 4th embodiment, do not have the point of special instruction same with diaper 1A, the explanation of suitable use diaper 1A.
As shown in Figure 8, diaper 1D is identical with the composite extensible member 7A of diaper 1A, composite extensible member 7D is at a pair of pull stap 51, between 51, be configured in impartial position, left and right, but in composite extensible member 7D, the amount of the fixing bonding agent 74 using of the elastomeric element 73 in the stretching region 70L in left side is less than the amount of the fixing bonding agent 74 using of the elastomeric element 73 in the stretching region 70R on right side, the contractility to width (directions X) of the stretching region 70L in left side forms greatlyr than the contractility to width (directions X) of the stretching region 70R on right side.From the coating amount that increases bonding agent 74, to suppress the viewpoint of contractility of elastomeric element 73 of elongation state, the amount of the bonding agent 74 in the stretching region 70R on right side is preferably 1.2~2.0 times of amount of the bonding agent 74 in the stretching region 70L in left side.In addition, the coating scope of the bonding agent 74 in the stretching region 70R on right side is the scope identical with the coating scope of the bonding agent 74 in the stretching region 70L in left side.Diaper 1D forms by the composite extensible member 7D forming is like this configured in to impartial position, left and right each other at a pair of pull stap 51,51, therefore same with diaper 1A, make as shown in Figure 8 drosal part B in above and while overlooking from face sheet 2 sides, the contractility to width (directions X) of the region 7L of left wing between pull stap 51 and the absorber 4 in left side is greater than the contractility to width (directions X) of the right flank region 7R between pull stap 51 and the absorber 4 on right side.
The composite extensible member 7D of diaper 1D is same with the composite extensible member 7A of diaper 1A, uses the manufacturing installation 700 shown in Fig. 4 to manufacture.Specifically, on the continuum 720 of the sheet material 72 of supplying with continuously from the blank roller 72a of sheet material 72, use adhesive applicating machine 740, with the mode corresponding with the stretching region 70R on the stretching region 70L in left side, right side, region from stretching region 70L to stretching region 70R, roughly コ shape ground intermittent application bonding agent 74.In the time of coating, the area of application of the stretching region 70L in left side and the stretching region 70R on right side is identical, but the mode that is less than the coating amount of the bonding agent 74 of the stretching region 70R on right side with the coating amount of the bonding agent 74 of the stretching region 70L in left side applies, then, on bonding agent 74 on the continuum 720 that is coated in sheet material 72, elastomeric element 73 is configured respectively multiple with the state of the percentage elongation that is stretched to regulation, and then, to the continuum 710 of supplying with continuously sheet material 71 on it from the blank roller 71a of sheet material 71.Then, between a pair of pressure holding roller 701,702, as mentioned above, the continuum 710 of sheet material 71 and the continuum 720 of sheet material 72 that overlap for the mode of giving that many elastomeric elements 73 are clipped under the state of percentage elongation that is stretched to regulation, be formed on the continuum 70a (precursor of the continuum 70 of composite extensible member 7D) that disposes the composite component of many elastomeric elements 73 between the continuum 710 of sheet material 71 and the continuum 720 of sheet material 72 with elongation state.The continuum 70 of the composite extensible member 7D so producing is supplied with to cutter sweep 706, same with the composite extensible member 7A of diaper 1A, by cutting continuous manufacture composite extensible member 7D.
In addition, 700 of manufacturing installations shown in Fig. 4 have an adhesive applicating machine 740, but other adhesive applicating machine also can be set simultaneously, utilize adhesive applicating machine 740, apply the bonding agent 74 of above-mentioned roughly コ word shape, utilize other adhesive applicating machine only at the region adhesive-applying 74 corresponding with the stretching region 70R on right side, the coating amount of the bonding agent 74 of the stretching region 70R on right side is more (in other words than the coating amount of the bonding agent of the stretching region 70L in left side 74, the coating amount of the bonding agent 74 of the stretching region 70L in left side is less than the coating amount of the bonding agent 74 of the stretching region 70R on right side).
Action effect when using the diaper 1D of the 4th embodiment of the invention described above describes.
The effect explanation point different from the effect of the diaper 1A of the first embodiment of diaper 1D to the 4th embodiment.Do not have the point of special instruction same with the effect of diaper 1A, the explanation of the effect of suitable use diaper 1A.
As shown in Figure 8, diaper 1D can be only controls contractility by the change of the coating amount of bonding agent 74, does not need complicated process equipment.In addition, the roughly whole region of the width (directions X) of the stretching region 70R on right side between absorber 4 and pull stap 51, therefore, when being worn on child and waiting, stretching region 70R not only with the back side contacts of child's etc. waist portion, also with sidepiece near position contact, in the time dressing, the abdominal circumference variation of heaving etc. with respect to child's etc. abdominal part, the waist of diaper 1C easily extends, and property next to the skin is high.
Then, based on Fig. 9, the flat type disposable diaper 1E to the 5th embodiment of the present invention (below also referred to as " diaper 1E ") describes.
The diaper 1E of the 5th embodiment is only illustrated to the point different from the diaper 1A of the first embodiment.Do not have the point of special instruction same with diaper 1A, the explanation of suitable use diaper 1A.
As shown in Figure 9, diaper 1E is same with the composite extensible member 7A of diaper 1A, composite extensible member 7E is configured in impartial position, left and right between a pair of pull stap 51,51, but, composite extensible member 7E is formed as, and the number of the elastomeric element 73 of the wire in the stretching region 70L in left side is more than the number of the elastomeric element of the wire in the stretching region 70R on right side 73.Diaper 1E forms by the composite extensible member 7E forming being like this configured between a pair of pull stap 51,51 to impartial position, left and right, therefore, 1A is same with diaper, make as shown in Figure 9 drosal part B in above and while overlooking from face sheet 2 sides, the contractility to width (directions X) of the region 7L of left wing between pull stap 51 and the absorber 4 in left side is greater than the contractility to width (directions X) of the right flank region 7R between pull stap 51 and the absorber 4 on right side.
The composite extensible member 7E of diaper 1E is same with the composite extensible member 7A of diaper 1A, uses the manufacturing installation 700 shown in Fig. 4 to manufacture.Specifically, on the continuum 720 of the sheet material 72 of supplying with continuously from the blank roller 72a of sheet material 72, use adhesive applicating machine 740, in the mode corresponding with the stretching region 70R on the stretching region 70L in left side, right side, region from stretching region 70L to stretching region 70R, with コ word shape adhesive-applying 74 off and on roughly.When coating, identical with the length of the area of application of the stretching region 70L in left side and directions X corresponding to the stretching region 70R on right side, but with the length of the area of application of the Y-direction corresponding with the stretching region 70L in left side and the stretching region 70R on right side, in the region corresponding with the stretching region 70L in left side than the mode adhesive-applying 74 longer with region corresponding to the stretching region 70R on right side.Then,, on the bonding agent 74 on the continuum 720 that is coated in sheet material 72, to be stretched to many elastomeric elements of state configuration 73 of percentage elongation of regulation, and then, supply with continuously the continuum 710 of sheet material 71 from the blank roller 71a of sheet material 71 thereon.Then, between a pair of pressure holding roller 701,702, as mentioned above, for the continuum 710 of sheet material 71 and the continuum 720 of sheet material 72 of giving many elastomeric elements 73 to overlap in the mode that is stretched to the state of percentage elongation of regulation and clips, be formed on the continuum 70a (precursor of the continuum 70 of composite extensible member 7E) that disposes the composite component of many elastomeric elements 73 between the continuum 710 of sheet material 71 and the continuum 720 of sheet material 72 with elongation state.In addition, in the precursor of the continuum 70 of composite extensible member 7E, the radical by the fixing elastomeric element 73 of bonding agent 74 in the stretching region 70L in left side more than in the stretching region 70R on right side by the radical of the fixing elastomeric element 73 of bonding agent 74.The continuum 70 of the composite extensible member 7E manufacturing is like this supplied to cutter sweep 706, identical with the composite extensible member 7A of diaper 1A, can manufacture continuously composite extensible member 7E by cutting.
Action effect when using the diaper 1E of above-mentioned the 5th embodiment of the present invention describes.
The effect explanation point different from the effect of the diaper 1A of the first embodiment of diaper 1E to the 5th embodiment.Do not have the point of special instruction same with the effect of diaper 1A, the explanation of the effect of suitable use diaper 1A.
As shown in Figure 9, diaper 1E can be only controls contractility by the change of the application pattern of bonding agent 74, does not need complicated process equipment and high technology.In addition, the roughly whole region of the width (directions X) of the stretching region 70R on right side between absorber 4 and pull stap 51, therefore, when being worn on child and waiting, stretching region 70R not only contacts side in child's etc. the back of the body of waist portion, also contact near the position of sidepiece, child's etc. abdominal part is heaved the waistline waiting and is changed when dressing, and the waist of diaper 1C easily extends, and property next to the skin is high.
Flat type disposable diaper of the present invention is not limited to diaper 1A, diaper 1B, the diaper 1C of the 3rd embodiment of the second embodiment, the diaper 1D of the 4th embodiment, the diaper 1E of the 5th embodiment of above-mentioned present embodiment, can suitablely change.In addition, the each element in the diaper 1A~1E of above-mentioned the first~five embodiment not damaging in scope of the present invention, can be implemented proper combination.
For example, flat type disposable diaper of the present invention can be also, comprise: have face sheet, back-sheet and the absorber configuring and be divided into the absorbent main body of the A of veutro portion, drosal part B and crotch C between them; Left and right two foreign sides of drosal part B in this absorbent main body connect the pair of right and left waist panel arranging; With the pull stap of outer rim that is positioned at this waist panel.Such waist panel is in the fin type diaper of other parts, extensible member 7 is not a composite extensible member 7A~7E long on directions X, but a pair of (2) waist panel, the contractility to width (directions X) of the waist panel in left side is than the contractility to width (directions X) of the waist panel on right side greatly.
In addition, the composite extensible member 7A~7E in the diaper 1A~1E of above-mentioned the first~five embodiment, as shown in Figure 3, has the elastomeric element 73 of wire, but also can replace the elastomeric element 73 of many wire, has the membranaceous elastomeric element of a slice.
In addition, composite extensible member 7A~7E in the diaper 1A~1E of above-mentioned the first~five embodiment, as shown in Figure 3, there are two sheet materials 71,72 of same shape formed objects, but the sheet material 71,72 of any one party of also can turning back configures the elastomeric element 73 of many wire between the sheet material of turning back.
In addition, the disposable diaper of deploying type of the present invention is the disposable diaper of child or adult's use.
Above-mentioned embodiment discloses the disposable diaper of following deploying type.
<1> flat type disposable diaper, it has face sheet, back-sheet and the absorber of the lengthwise that configures between these sheet materials, and be divided into veutro portion, drosal part and crotch, in this flat type disposable diaper
Both side edges portion at drosal part is respectively arranged with pull stap,
Dispose each other extensible member at a pair of above-mentioned pull stap,
Make drosal part in above, while overlooking from face sheet side, the contractility to width in the left wing region between above-mentioned pull stap and the above-mentioned absorber in left side is greater than the contractility to width in the right flank region between above-mentioned pull stap and the above-mentioned absorber on right side.
The flat type disposable diaper of <2> as described in above-mentioned <1>, wherein,
Above-mentioned extensible member is between sheet material, to configure elastomeric element and the wide composite extensible member of the above-mentioned absorber of ratio that forms,
Above-mentioned composite extensible member has the weak functionalization region of the Telescopic reduction of above-mentioned elastomeric element in the region overlapping with above-mentioned absorber,
The above-mentioned weak functionalization of ratio in above-mentioned composite extensible member region more keep left the contractility to width of stretching region of side be greater than in this composite extensible member than the contractility to width of this weak functionalization region stretching region more on the right side.
The flat type disposable diaper of <3> as described in above-mentioned <2>, wherein,
Above-mentioned elastomeric element is the elastomeric element of multiple wire,
The average regular length of above-mentioned elastomeric element of the wire in the above-mentioned stretching region in left side is greater than the average regular length of the above-mentioned elastomeric element of the wire in the above-mentioned stretching region on right side.
The flat type disposable diaper of <4> as described in above-mentioned <2>, wherein,
The amount of the fixing middle bonding agent using of the above-mentioned elastomeric element in the above-mentioned stretching region in left side is less than the amount of the fixing middle bonding agent using of the above-mentioned elastomeric element in the above-mentioned stretching region on right side.
The flat type disposable diaper of <5> as described in above-mentioned <2>, wherein,
Above-mentioned elastomeric element is the elastomeric element of multiple wire,
The number of the above-mentioned elastomeric element of the wire in the above-mentioned stretching region in left side is more than the number of the above-mentioned elastomeric element of the wire in the above-mentioned stretching region on right side.
<6> is if above-mentioned <2> is to the flat type disposable diaper as described in any one in <5>, wherein,
Above-mentioned elastomeric element is the elastomeric element of multiple wire,
In above-mentioned weak functionalization region, the elastomeric element of above-mentioned multiple wire is cut to respectively multiple.
<7> is if above-mentioned <2> is to the flat type disposable diaper as described in any one in <6>, wherein,
In above-mentioned composite extensible member, adhesive applicating in the region corresponding with the stretching region in above-mentioned left side, with region corresponding to the stretching region on above-mentioned right side, region from the length direction foreign side part of the stretching region in this left side to the length direction foreign side part of the stretching region on this right side, apply as コ shape roughly.
<8> is if above-mentioned <2> is to the flat type disposable diaper as described in any one of <7>, wherein,
Above-mentioned elastomeric element is the elastomeric element of multiple wire,
The single line of the elastomeric element of above-mentioned wire is of a size of 310~940dtex, and it extends multiplying power is more than 130%.
<9> is if above-mentioned <3> is to the flat type disposable diaper as described in any one of <8>, wherein,
1.05~1.30 double-lengths of the average regular length of the above-mentioned elastomeric element of the wire in the above-mentioned stretching region that the average regular length of the above-mentioned elastomeric element of the wire in the above-mentioned stretching region in left side is right side.
<10> is if above-mentioned <1> is to the flat type disposable diaper as described in any one in <9>, wherein,
In above-mentioned disposable diaper, the both side edges alongst of above-mentioned crotch is formed as the circular-arc of concavity.
<11> is if above-mentioned <1> is to the flat type disposable diaper as described in any one in <9>, wherein,
Above-mentioned disposable diaper has the hourglass shape of length direction (Y-direction) central part shrinking as a whole.
<12> is if above-mentioned <1> is to the flat type disposable diaper as described in any one in <11>, wherein,
The rectangular shape that above-mentioned absorber is formed as growing in the longitudinal direction, above-mentioned face sheet is formed as the essentially rectangular shape larger than the overall dimensions of above-mentioned absorber, and above-mentioned back-sheet is formed as the hourglass shape consistent with the outer shape of above-mentioned disposable diaper.
<13> is if above-mentioned <1> is to the flat type disposable diaper as described in any one in <12>, wherein,
Above-mentioned face sheet and above-mentioned back-sheet extend out from the periphery of above-mentioned absorber respectively, are bonded with each other at its extension.
<14> is if above-mentioned <1> is to the flat type disposable diaper as described in any one in <13>, wherein,
In above-mentioned disposable diaper, form three-dimensional gauffer in both sides alongst and more lean on the leg creases of width foreign side than this solid gauffer.
The flat type disposable diaper of <15> as described in above-mentioned <14>, wherein,
Above-mentioned three-dimensional gauffer forms by following manner: by three-dimensional gauffer form with sheet material turn back into two-layer more than, between the sheet material of turning back, configure in the longitudinal direction the more than one elastomeric element of elongation state, the three-dimensional gauffer that disposes this elastomeric element is formed and uses sheet material to configure to interior side from the width foreign side of the lateral margin of above-mentioned face sheet.
<16> is if above-mentioned <2> is to the flat type disposable diaper as described in any one in <15>, wherein,
In above-mentioned composite extensible member, bonding agent is with 1~10g/m 2coating amount coating.
<17> is if above-mentioned <1> is to the flat type disposable diaper as described in any one in <16>, wherein,
Above-mentioned face sheet is non-woven fabrics.
<18> is if above-mentioned <1> is to the flat type disposable diaper as described in any one in <17>, wherein,
Above-mentioned disposable diaper has in above-mentioned veutro portion the target sheet material engaging with above-mentioned pull stap,
Use loop component as above-mentioned target sheet material.
Industrial utilizability
According to flat type disposable diaper of the present invention, can further improve the easiness of wearing.

Claims (9)

1. a flat type disposable diaper, it has face sheet, back-sheet and the absorber of the lengthwise that configures between these sheet materials, and is divided into veutro portion, drosal part and crotch, and this flat type disposable diaper is characterised in that:
Both side edges portion at drosal part is respectively arranged with pull stap,
Dispose each other extensible member at a pair of described pull stap,
Make drosal part in above, while overlooking from face sheet side, the contractility to width in the left wing region between described pull stap and the described absorber in left side is greater than the contractility to width in the right flank region between described pull stap and the described absorber on right side.
2. flat type disposable diaper as claimed in claim 1, is characterized in that:
Described extensible member is between sheet material, to configure elastomeric element and the wide composite extensible member of absorber described in the ratio that forms,
Described composite extensible member has the weak functionalization region of the Telescopic reduction of described elastomeric element in the region overlapping with described absorber,
Described in ratio in described composite extensible member weak functionalization region more keep left the contractility to width of stretching region of side be greater than in this composite extensible member than the contractility to width of this weak functionalization region stretching region more on the right side.
3. flat type disposable diaper as claimed in claim 2, is characterized in that:
Described elastomeric element is the elastomeric element of multiple wire,
The average regular length of described elastomeric element of the wire in the described stretching region in left side is greater than the average regular length of the described elastomeric element of the wire in the described stretching region on right side.
4. flat type disposable diaper as claimed in claim 2, is characterized in that:
The amount of the fixing middle bonding agent using of the described elastomeric element in the described stretching region in left side is less than the amount of the fixing middle bonding agent using of the described elastomeric element in the described stretching region on right side.
5. flat type disposable diaper as claimed in claim 2, is characterized in that:
Described elastomeric element is the elastomeric element of multiple wire,
The number of the described elastomeric element of the wire in the described stretching region in left side is more than the number of the described elastomeric element of the wire in the described stretching region on right side.
6. the flat type disposable diaper as described in any one in claim 2~5, is characterized in that:
Described elastomeric element is the elastomeric element of multiple wire,
In described weak functionalization region, the elastomeric element of described multiple wire is cut to respectively multiple.
7. the flat type disposable diaper as described in any one in claim 2~6, is characterized in that:
In described composite extensible member, adhesive applicating in the region corresponding with the stretching region in described left side, with region corresponding to the stretching region on described right side, region from the length direction foreign side part of the stretching region in this left side to the length direction foreign side part of the stretching region on this right side, apply as コ shape roughly.
8. the flat type disposable diaper as described in any one in claim 2~7, is characterized in that:
Described elastomeric element is the elastomeric element of multiple wire,
The single line of the elastomeric element of described wire is of a size of 310~940dtex, and it extends multiplying power is more than 130%.
9. the flat type disposable diaper as described in any one in claim 3~8, is characterized in that:
1.05~1.30 double-lengths of the average regular length of the described elastomeric element of the wire in the described stretching region that the average regular length of the described elastomeric element of the wire in the described stretching region in left side is right side.
CN201280053581.4A 2011-11-02 2012-10-05 The disposable diaper of deploying type Active CN103906491B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011-240778 2011-11-02
JP2011240778A JP5922375B2 (en) 2011-11-02 2011-11-02 Unfoldable disposable diapers
PCT/JP2012/075996 WO2013065449A1 (en) 2011-11-02 2012-10-05 Expanding disposable nappy

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CN103906491A true CN103906491A (en) 2014-07-02
CN103906491B CN103906491B (en) 2015-09-30

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CN108601680A (en) * 2015-11-24 2018-09-28 Dsg 科技控股有限公司 A kind of elastic core element composite material or component and the system and method for manufacturing elastic composite component
CN108652833A (en) * 2017-03-28 2018-10-16 大王制纸株式会社 The manufacturing method of banding pattern disposable diaper and banding pattern disposable diaper
CN109414354A (en) * 2016-06-27 2019-03-01 尤妮佳股份有限公司 Pants type absorptive article

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CN108601680A (en) * 2015-11-24 2018-09-28 Dsg 科技控股有限公司 A kind of elastic core element composite material or component and the system and method for manufacturing elastic composite component
CN108601680B (en) * 2015-11-24 2021-08-17 Dsg 科技控股有限公司 Elastic core composite or component and system and method for manufacturing elastic composite component
CN108472172A (en) * 2015-12-28 2018-08-31 尤妮佳股份有限公司 Disposable shorts
CN109414354A (en) * 2016-06-27 2019-03-01 尤妮佳股份有限公司 Pants type absorptive article
CN108652833A (en) * 2017-03-28 2018-10-16 大王制纸株式会社 The manufacturing method of banding pattern disposable diaper and banding pattern disposable diaper
CN108652833B (en) * 2017-03-28 2021-07-13 大王制纸株式会社 Tape-type disposable diaper and method for manufacturing tape-type disposable diaper

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