CN103906491B - The disposable diaper of deploying type - Google Patents
The disposable diaper of deploying type Download PDFInfo
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- CN103906491B CN103906491B CN201280053581.4A CN201280053581A CN103906491B CN 103906491 B CN103906491 B CN 103906491B CN 201280053581 A CN201280053581 A CN 201280053581A CN 103906491 B CN103906491 B CN 103906491B
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- elastomeric element
- region
- diaper
- disposable diaper
- flat type
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15585—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
- A61F13/15593—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers having elastic ribbons fixed thereto; Devices for applying the ribbons
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
Abstract
Flat type disposable diaper of the present invention (1A) has the absorber (4) of lengthwise of face sheet (2), back-sheet (3) and configuration between these sheet materials (2,3), and is divided into veutro portion (A), drosal part (B) and crotch (C).Diaper (1A) is provided with pull stap (51) in the edge, both sides of drosal part (B).Diaper (1A) is configured with extensible member (7) each other a pair pull stap (51,51).Diaper (1A) is when making drosal part (B) be in top and overlook from face sheet (2) side, and the contractility to width (X-direction) in the left wing region (7L) between the pull stap (51) in left side and absorber (4) is greater than the contractility to width (X-direction) in the right flank region (7R) between the pull stap (51) on right side and absorber (4).
Description
Technical field
The present invention relates to the flat type disposable diaper that child uses or is grown up.
Background technology
The disposable diaper of usual deploying type is symmetrically formed.Such as, in patent documentation 1, describe following flat type disposable diaper, it has face sheet, back-sheet and the absorber between these sheet materials, and there is the diaper of waist gauffer, the elastic flexible component forming waist gauffer configures with the percentage elongation of regulation in assigned position.
Patent documentation 1: Japanese Unexamined Patent Publication 08-071103 publication.
Summary of the invention
Patent Document 1 discloses the disposable diaper of deploying type, dress easily and there is sufficient retractility in wearing, excellent to the conformability in the waist portion of wearer.But the disposable diaper recorded in patent documentation 1 is symmetrically formed, and therefore, devises the flexible physical property that left and right is identical.Protector or caregiver, to child or when being dressed the disposable diaper of deploying type by caregiver, usually, make child or are lain on disposable diaper by caregiver, after the pull stap of fixed party, then fixing the pull stap of the opposing party.Present inventor finds, because with such order fixed agraffe band, so when dressing flat type disposable diaper, the flexible physical property that left and right needs is different.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, it absorber of lengthwise comprising face sheet, back-sheet and configure 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 is configured with extensible member each other at a pair above-mentioned pull stap, drosal part is made to be positioned at top, when overlooking from face sheet side, the contractility to width in the left wing region between the above-mentioned pull stap in left side and above-mentioned absorber is greater than the contractility to width in the right flank region between the above-mentioned pull stap on right side and above-mentioned absorber.
Accompanying drawing explanation
Fig. 1 is that the part making the flat type disposable diaper of the first embodiment of the present invention extend the state of expansion viewed from face sheet side 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 for representing the schematic diagram for the manufacture of the preferred embodiment of the composite extensible member 7A shown in Fig. 3.
Fig. 5 is for representing the schematic diagram for the manufacture of the preferred embodiment of the diaper shown in Fig. 1.
Fig. 6 is the plane graph of the major part of the state of the diaper elongation expansion of the second embodiment of the present invention viewed from face sheet side.
Fig. 7 is the plane graph of the major part of the state of the diaper elongation expansion of the 3rd embodiment of the present invention viewed from face sheet side.
Fig. 8 is the plane graph of the major part of the state of the diaper elongation expansion of the 4th embodiment of the present invention viewed from face sheet side.
Fig. 9 is the plane graph of the major part of the state of the diaper elongation expansion of the 5th embodiment of the present invention viewed from face sheet side.
Detailed description of the invention
Below, based on its preferred 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 (hereinafter also referred to " diaper 1A ") of the first embodiment, for the flat type disposable diaper of child, as shown in Figure 1, there is the absorber 4 of lengthwise of the face sheet 2 of liquid permeability, the back-sheet 3 of difficult liquid permeability and configuration between these sheet materials 2,3, be divided into veutro portion A, drosal part B and crotch C.
Veutro portion A is positioned at the position of the veutro of wearer when being and dressing, be positioned at the position of the dorsal part of wearer when drosal part B is and dresses, crotch C is configured in the position between veutro portion A and drosal part B.
In addition, " Y-direction " shown in each figure is equidirectional with the length direction of absorber 4, is equidirectional with the length direction of diaper.In addition, " X-direction " shown in each figure is the direction identical with the width of absorber 4, is equidirectional with the width of diaper.
Diaper 1A, as shown in Figure 1, the both side edges of alongst (Y-direction) of crotch C forms concavity (arc-shaped), 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 pull stap 51,51 extended from the both side edges of alongst (Y-direction) of drosal part B to width (X-direction) foreign side, has the target sheet material 52 be combined with pull stap 51 at veutro portion A.Diaper 1A, when dressing, by being combined with the target sheet material 52 of veutro portion A by a pair pull stap 51,51 of drosal part B, forms waist peristome and pair of leg peristome.
The absorber 4 of diaper 1A, as shown in Figure 1, is formed as rectangular shape longer on length direction (Y-direction).
In diaper 1A, face sheet 2 is formed as the 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 whole of cover skin opposite face side and whole of non-skin opposite face side respectively, extend out from the periphery (along the both side edges of the length direction (Y-direction) of absorber 4 and two ora terminalis of length direction (Y-direction)) of absorber 4, mutually directly or indirectly engage at these extensions.The both side edges alongst of back-sheet 3 extends out from the both side edges of alongst (Y-direction) of face sheet 2 to width (X-direction) foreign side.
In diaper 1A, both sides 1s, the 1s of (Y-direction) alongst, by configuring each elastomeric element 63,64, being formed with three-dimensional gauffer 61 and being more positioned at the leg creases 62 of width (X-direction) foreign side than three-dimensional gauffer 61.Specifically, a pair three-dimensional gauffer 61,61 uses three-dimensional gauffer formation sheet material 65 to be formed respectively.Three-dimensional gauffer 61 is formed by following method: three-dimensional gauffer formation sheet material 65 is turned back two-layer more than, at the elastomeric element 63 of more than of length direction (Y-direction) upper configuration elongation state between the sheet material of turning back, the three-dimensional gauffer formation sheet material 65 being configured with elastomeric element 63 is configured to interior side from width (X-direction) foreign side of the lateral margin of face sheet 2.Be configured with the three-dimensional gauffer formation sheet material 65 of elastomeric element 63, 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., diaper length direction (Y-direction) is fixed on face sheet 2, and what utilize this fixed part to form three-dimensional gauffer 61 erects cardinal extremity.The three-dimensional gauffer 61 of formation like this is when dressing by the contraction of elastomeric element 63, and the part leaving free end Rack is left from face sheet 2, edge-on of the skin towards wearer.
In the sidepiece 1s of diaper 1A, as shown in Figure 1, three-dimensional gauffer formation sheet material 65 extends to width (X-direction) foreign side, between the extension and back-sheet 3 of three-dimensional gauffer formation sheet material 65, in the leg elastic members 64 of more than 1 of length direction (Y-direction) upper configuration elongation state, by known joint method, formed by three-dimensional gauffer and grip leg elastic members 64 by the extension of sheet material 65 and back-sheet 3.So, leg elastic members 64 is fixing with elongation state configuration at length direction (Y-direction), therefore, by the contractility of this elastomeric element 64 during wearing, forms leg creases 62 in crotch C.
Flat type disposable diaper of the present invention is configured with extensible member 7 each other at a pair pull stap 51,51, make above drosal part B is positioned at, when overlooking from face sheet 2 side, namely, during state as shown in Figure 1, the contractility to width (X-direction) of the left wing region 7L between the pull stap 51 in left side and absorber 4 is formed larger than the contractility to width (X-direction) of the right flank region 7R between the pull stap 51 on right side and absorber 4.Extensible member 7 in diaper 1A, for configuring elastomeric element 73 and the wide composite extensible member 7A of ratio absorber 4 width formed between sheet material 71,72.Composite extensible member 7A, as shown in Figure 1 and Figure 2, configure between absorber 4 and back-sheet 3, configure each other at a pair pull stap 51,51, therefore, the contractility to width (X-direction) of diaper 1A left-wing region 7L is formed larger than the contractility to width (X-direction) of right flank region 7R.In addition, about left side and right side, as mentioned above, mean the left side in state as shown in Figure 1 and right side, mean specifically, as shown in Figure 1, launching under the state expanding diaper 1A, the drosal part B side of diaper 1A is configured in the dorsal part (head side) of wearer, and then left side when overlooking from face sheet 2 side and right side.
Can measure as follows in this " contractility to width (X-direction) of wing area ".
In the diaper 1A of state shown in Fig. 1, by the region between the pull stap 51 in left side and absorber 4, cut out in the X direction for contain on both sides the non-telescoping portion of more than 10mm 90mm, be the rectangular shape of 80mm in the Y direction, this sample cut out is the sample of left wing region 7L.When more than 10mm is not gone up in non-telescoping portion, the mode comprising absorber 4 and/or the such region not flexible in fact of pull stap 51 with part cuts out the sample of left wing region 7L.Equally, by the region between the pull stap 51 on right side and absorber 4, cut out in the X direction for contain on both sides the non-telescoping portion of more than 10mm 90mm, be the rectangular shape of 80mm in the Y direction, this cuts out the sample that sample is right flank region 7R.When non-telescoping portion is not more than 10mm, the mode comprising absorber 4 and/or the such region not flexible in fact of pull stap 51 with part cuts out the sample of right flank region 7R.To each sample prepared like this, use cupping machine (" tensilon " RTA-100 of Co., Ltd. O rientec), be 30mm between fixture and with the 10mm gripping non-telescoping portion part mode fixed sample, with the speed of 300mm/min in the X direction drawn samples to former length.Using the measured value of the maximum intensity of data that obtains each sample as " contractility to width (X-direction) of wing area " in each sample.
Below, the composite extensible member 7A of diaper 1A is illustrated.
The composite extensible member 7A of diaper 1A, as shown in Figure 1, impartial position, left and right is configured in each other at a pair pull stap 51,51, as shown in Figure 3, in the region overlapped with absorber 4, there is the weak functionalization region 7Z of the Telescopic reducing elastomeric element 73, ratio weak functionalization region 7Z in composite extensible member 7A more keeps left the contractility to width (X-direction) of stretching region 70L of side, is formed larger than the contractility to width (X-direction) of the ratio weak functionalization region 7Z stretching region 70R more on the right side in composite extensible member 7A.Specifically, composite extensible member 7A has 2 sheet materials 71,72 of rectangular shape longer in the X direction compared with the length of the width of absorber 4 (X-direction), with the elastomeric element 73 of many wire, between 2 sheet materials 71,72 of similar shape with size, by in the X direction for elongation state wire elastomeric element 73 in the Y direction the overhead standard width of a room in an old-style house configure many every ground, use the bonding agents such as hot melt 74 to fix, thus form composite extensible member 7A.As in the weak functionalization region 7Z in the region overlapped with absorber 4, the elastomeric element 73 of many wire is cut to multiple respectively, is become the state almost not having contractility by the elastomeric element compactly cut off.
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 configured at stretching region 70R, 70L, measure the regular length of the part using bonding agent 74 to fix with elongation state in each elastomeric element 73, to the value obtained by measuring these measured values of obtaining and being averaging.In the composite extensible member 7A of diaper 1A, as shown in Figure 3, bonding agent 74 is coated in the region of the region corresponding with the stretching region 70L in left side, the region corresponding with the stretching region 70R on right side, Y-direction foreign side part from the Y-direction foreign side of the stretching region 70L in left side part to the stretching region 70R on right side, applies as roughly U-shaped.The region corresponding with the stretching region 70L in the left side after adhesive-applying 74, compared to the stretching region 70R on the right side after adhesive-applying 74, the length being formed as Y-direction is identical, but the length of X-direction is longer.The bonding agent 74 of coating is like this utilized to fix the elastomeric element 73 of wire, therefore, in the composite extensible member 7A of diaper 1A, 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, 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 73 of the stretching region 70R on right side.
As 2 sheet materials 71,72 that the same shape forming composite extensible member 7A is onesize, as long as the parts usually used in the absorbent commodities such as disposable diaper, just can be used without particular limitation, such as, the mass area ratio of the liquid permeability of monolayer or multiple structure can be used to be 10 ~ 25g/m
2the non-woven fabrics etc. of scope.
As the elastomeric element 73 of the wire of formation composite extensible member 7A, as long as the parts usually used in the absorbent commodities such as disposable diaper, just can be used without particular limitation, such as, loft material, the natural rubber of the wire of the polyethylene-alphaolefin copolymer comprising polyurethane, polystyrene-poly isoprene copolymer, polystyrene-polybutadiene copolymer, ethyl acrylate-ethylene etc. etc. can be used, particularly preferably use the loft material comprising the wire of polyurethane.Elastomeric element 73 single line of wire is preferably dimensioned to be 310 ~ 940dtex, is more preferably 470 ~ 780dtex.The elastomeric element 73 of such wire is preferably with more than 130%, and particularly preferably the elongation multiplying power of more than 150% configures.At this, elongation multiplying power refers to the value of the length after elongation divided by the length before elongation.
The coating amount of the bonding agent 74 of hot melt etc. is preferably 1 ~ 10g/m
2, be 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, is more preferably 0.015 ~ 0.025g/m.
In the composite extensible member 7A of diaper 1A, contractility on the pull stap that setting applying formerly engages with target sheet material is more weak, contractility on the pull stap engaged with target sheet material after being applied to is stronger, the easiness of wearing can be improved like this, from this viewpoint, the average regular length of the 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, is more preferably 1.10 ~ 1.25 double-lengths.
The composite extensible member 7A of such formation, the thickness direction of diaper 1A configures between absorber 4 and back-sheet 3, width (X-direction) configures each other at a pair pull stap 51,51, then the contractility of the stretching region 70L in left side is formed larger than the contractility of the stretching region 70R on right side, therefore, the contractility to width (X-direction) of the left wing region 7L in diaper 1A is formed larger than the contractility to width (X-direction) of right flank region 7R.In addition, in the composite extensible member 7A of configuration like this, during wearing, be positioned at and more shrink by the elastomeric element 73 of many wire of the position of Y-direction foreign side than weak functionalization region 7Z, form waist gauffer at the circumference of waist peristome thus.And then, in the composite extensible member 7A of configuration like this, during wearing, the elastomeric element 73 being positioned at many wire of width (X-direction) two foreign side 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 in a thickness direction, but also can be configured between face sheet 2 and absorber 4.
The composite extensible member 7A of diaper 1A, such as, uses the manufacturing installation 700 shown in Fig. 4 to manufacture.
Specifically, on the continuum 720 of the sheet material 72 supplied continuously from the blank roller 72a of sheet material 72, use adhesive applicating machine 740, to correspond to stretching region 70L, the stretching region 70R on right side, the mode across the region of the scope of stretching region 70L and stretching region 70R in left side, with roughly コ font, off and on adhesive-applying 74.Then, on the bonding agent 74 on the continuum 720 being coated in sheet material 72, configure multiple elastomeric element 73 with the state of percentage elongation of extending for regulation, and then to it supplying continuously the continuum 710 of sheet material 71 from the blank roller 71a of sheet material 71.Then, between a pair pressure holding roller 701,702, as mentioned above, the continuum 710 of sheet material 71 overlapped for the state of giving the percentage elongation extended for specifying clips many elastomeric elements 73 and the continuum 720 of sheet material 72, be formed in the continuum 70a (precursor of the continuum 70 of composite extensible member 7A) being configured with 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 (precursor of the continuum 70 of composite extensible member 7A) of composite component 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 contractile function separately, manufacture the continuum 70 of the composite extensible member 7A that weak functionalization region 7Z interval is formed.Precut device 703 is such as the parts of the roughly the same structure of the elastomeric element cutting portion had with use in the manufacture method of the composite extensible member recorded in Japanese Unexamined Patent Publication 2002-253605 publication, has: the cut-out roller 704 at side face with multiple recesses (not shown) that elastomeric element cuts off; And with the backing roll 705 of surface smoothing cutting off roller 704 and be oppositely disposed.
Then, the continuum 70 of composite extensible member 7A is supplied to cutter sweep 706, this cutter sweep 706 has: the cutting roller 707 at side face with cutter (not shown); And the backing roll 708 of the surface smoothing to be oppositely disposed with cutting roller 707, manufacture each composite extensible member 7A.
There is the above-mentioned diaper 1A of the composite extensible member 7A manufactured as mentioned above, such as, use the manufacturing installation 100 shown in Fig. 5 to manufacture.
Specifically, as shown in Figure 5, by composite extensible member 7A longer on the direction orthogonal with the throughput direction of this continuum 30, the interval using 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 each composite extensible member 7A on the continuum 30 being configured at back-sheet 3, in the mode that the end of the throughput direction with absorber 4 is overlapping, use conveyer belt 102 to supply absorber 4, and fixed by bonding agent.Outside this, configure the continuum 650 of the three-dimensional gauffer formation sheet material 65 of the elastomeric element 63 being configured with elongation state in the conveying direction in the both side edges portion of the continuum 20 of face sheet 2 respectively, and fixed by bonding agent, form composite sheet 365.
Then, as shown in Figure 5, to be configured with on absorber 4 each composite extensible member 7A weak functionalization region 7Z back-sheet 3 continuum 30 on, supply composite sheet 365, and is fixed by bonding agent.In addition, when the continuum 30 of sheet material 3 overleaf supplies composite sheet 365, between the continuum 650 and the continuum 30 of back-sheet 3 of each three-dimensional gauffer formation sheet material 65 of formation composite sheet 365, supply is the leg elastic members 64 of elongation state in the conveying direction, and fixed by bonding agent, form the continuum of the precursor of diaper 1A.Then, to the continuum of the precursor of diaper 1A, the part configured around the respective lower limb in edge, both sides at this continuum is cut into arc-shaped, afterwards, affixed unit such as fixed agraffe band 51 diaper such as grade, form the continuum 10 of diaper 1A, cut off between absorber 4 adjacent in the conveying direction, flat type disposable diaper 1A can be manufactured continuously thus.
The formation material of the diaper 1A of present embodiment is described.
As face sheet 2, back-sheet 3 and absorber 4, as long as the parts usually used in the absorbent commodity of disposable diaper etc. respectively, just can be used without particular limitation.Such as, as face sheet 2, the non-woven fabrics of the liquid permeability of monolayer or multiple structure, the apertured film etc. of liquid permeability can be used.As back-sheet 3, the laminated body etc. of the resin molding of opaque liquid or water-repellancy, resin molding and non-woven fabrics can be used.As absorber 4, can use the aggregation of the fibers such as pulp fiber (also can for non-woven fabrics) or the absorbent core of granule maintaining water absorbent polymer wherein, with the parts etc. that the cored sheet material be made up of thin paper or the non-woven fabrics of water penetration is coated.In addition, as three-dimensional gauffer formation sheet material 65, as long as the parts usually used in the absorbent commodities such as disposable diaper, just can be used without particular limitation, the resin molding of opaque liquid or water-repellancy or the laminated body etc. of resin molding and non-woven fabrics can be used.As elastomeric element 63 and leg elastic members 64, the loft material of the wire of polyethylene-alphaolefin copolymers such as comprising natural rubber, polyurethane, polystyrene-poly isoprene copolymer, polystyrene-polybutadiene copolymer, ethyl acrylate-ethylene etc. can be used.
As target sheet material 52, as long as the parts usually used in flat type disposable diaper just can be used without particular limitation, such as, the loop component with the surface texture that can engage with the engaging protrusion (not shown) of the hook side parts of pull stap 51 described later can be enumerated.As such loop component, the structure that can be engaged hook side parts by pressing hook side parts can be used without particular limitation, the non-woven fabrics that spunbond, hot blast, sticky point formula, chemical adhesion etc. various method for makings can be used to produce or through braiding etc. formed weave cotton cloth, the sunny side parts of such as various known mechanical faces described later securing member.
Form hook side parts and the plate substrate of pull stap 51, as long as the parts usually used in flat type disposable diaper are just not particularly limited.Such as, as hook side parts, 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. can be used.As plate substrate, the sheet that the composite of the synthetic resin such as polyethylene, polypropylene, polyethylene terephthalate and two or more these synthetic resin can be used to form or non-woven fabrics etc.The engaging protrusion (not shown) of hook side parts can use the parts being formed as anchor shape or hook-type etc.
Action effect during the diaper 1A of the present embodiment using the invention described above is described.
Diaper 1A, above the drosal part B shown in Fig. 1 is in, when overlooking from face sheet 2 side, the contractility to width (X-direction) of the left wing region 7L between the pull stap 51 in left side and absorber 4 is greater than the contractility to width (X-direction) of the right flank region 7R between the pull stap 51 on right side and absorber 4.In such diaper 1A, therefore the contractility to width (X-direction) being greater than right flank region 7R to width (X-direction) contractility of left wing region 7L is not be formed as symmetrical.Therefore, when dressing diaper 1A, when making child or lain on diaper 1 by caregiver (hereinafter also referred to child etc.), right flank region 7R compared with left wing region 7L more in the raw, less in the upper amount of contraction of width (X-direction), therefore, there is the tendency that the length of extending from the oxter of child etc. is longer than right flank region 7R, no matter protector or caregiver (hereinafter also referred to protector etc.) are practise righthanded or practise the pull stap 51 that lefthanded easily can both take the right side of 7R 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 veutro portion A.In addition, right flank region 7R contractility described above is less, and therefore, when the pull stap 51 on the right side of 7R side, right flank region engages with object tape 52, diaper 1A is not easily from disengagings such as childs.
In addition, as shown in Figure 1, in diaper 1A, composite extensible member 7A is configured with each other at a pair pull stap 51,51, as shown in Figure 3, the contractility to width (X-direction) of the weak functionalization region 7Z that composite extensible member 7A has elastomeric element Telescopic in the region overlapping with absorber 4 reduces, the stretching region 70L in left side is formed larger than the contractility to width (X-direction) of the stretching region 70R on right side.Therefore, in diaper 1A, the contractility to width (X-direction) of left wing region 7L is stably large than the contractility to width (X-direction) of right flank region 7R.Thus; pull stap 51 on the right side of 7R side, foregoing right flank region can outside the advantage of contact target band rapidly; when the pull stap 51 contact target band in the left side of 7L side, left wing region; in order to make the waist portion of laminating child etc.; the contractility adjusting range that protector etc. can adjust contractility is large; when using diaper 1A, protector etc. can wait to child restfully and dress diaper 1A.
In addition, the composite extensible member 7A of diaper 1A, as shown in Figure 3, by adjusting the average regular length of the elastomeric element 73 of wire, the contractility to width (X-direction) of the stretching region 70L in left side is formed larger than the contractility to width (X-direction) of the stretching region 70R on right side.Therefore, the control contractility that the change by means of only the application pattern of 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 (hereinafter also referred to " diaper 1B ") of the second embodiment of the present invention is described.
The point different from the diaper 1A of the first embodiment is illustrated to the diaper 1B of the second embodiment.The point be not particularly illustrated is identical with diaper 1A, is suitable for the explanation using diaper 1A.
In diaper 1B, as shown in Figure 6, composite extensible member 7B at a pair pull stap 51,51 each other, is not configured in the position that left and right is impartial, and the configuration that keeps left.That is, the composite extensible member 7B of diaper 1B as shown in Figure 6, is not configure each other throughout a pair pull stap 51,51, 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, is formed be greater than the contractility to width (X-direction) than weak functionalization region 7Z stretching region 70R more on the right side than more the keep left contractility to width (X-direction) of stretching region 70L of side of weak functionalization region 7Z.The composite extensible member 7B of formation keeps left configuration by diaper 1B like this, therefore, same with diaper 1A, make as shown in FIG. 6 drosal part B be in above and overlook from face sheet 2 side time, the contractility to width (X-direction) of the left wing region 7L between the pull stap 51 in left side and absorber 4 is greater than the contractility to width (X-direction) of the right flank region 7R between the pull stap 51 on right side and absorber 4.
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 in the continuum 70a (same with the precursor phase of the continuum 70 of composite extensible member 7A) being configured with the composite component of many elastomeric elements 73 between the connector 710 of sheet material 71 and the connector 720 of sheet material 72 with elongation state, then, the continuum 70a of composite component is supplied to pre-cutting device 703, manufactures the continuum 70 that interval is formed with the composite extensible member 7B of weak functionalization region 7Z.The continuum 70 of the composite extensible member 7B produced like this is supplied to cutter sweep 706 and cuts, make compared with the composite extensible member 7A of diaper 1A, shorter than the length on the width (X-direction) of weak functionalization region 7Z stretching region 70R more on the right side, manufacture the composite extensible member 7B of diaper 1B thus continuously.
The action effect of the diaper 1B using second embodiment of the invention described above is described.
The point different from the effect of the diaper 1A of the first embodiment is illustrated to the effect of the diaper 1B of the second embodiment.The point be not particularly illustrated is same with the effect of diaper 1A, is suitable for the explanation of the effect using diaper 1A.
As shown in Figure 6, diaper 1B can make the use amount as the sheet material 71,72 of the material forming composite extensible member 7B and elastomeric element 73 etc. less.Therefore, it is possible to reduce the rigidity in waist portion, improve conformability, and add aeration by the minimizing of material, and then can cost be suppressed.
Then, the flat type disposable diaper 1C (hereinafter also referred to " diaper 1C ") of the 3rd embodiment of the present invention is described based on Fig. 7.
The point different from the first embodiment diaper 1A is illustrated to the diaper 1C of the 3rd embodiment.The point be not particularly illustrated is same with diaper 1A, is suitable for the explanation using diaper 1A.
As shown in Figure 7, diaper 1C is same with the composite extensible member 7A of diaper 1A, composite extensible member 7C configures left and right each other equably at a pair 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 (X-direction) of the stretching region 70L in left side is formed larger than the contractility to width (X-direction) of the stretching region 70R on right side.Diaper 1C is formed by the composite extensible member 7C formed like this being configured between a pair pull stap 51,51 impartial position, left and right, therefore, same with diaper 1A, make as shown in Figure 7 drosal part B be in above and overlook from face sheet 2 side time, the contractility to width (X-direction) of the left wing region 7L between the pull stap 51 in left side and absorber 4 is greater than the contractility to width (X-direction) of the right flank region 7R between the pull stap 51 on right side and absorber 4.
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 in the continuum 70a (same with the precursor phase of the continuum 70 of composite extensible member 7A) being configured with 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 is supplied pre-cutting device 703, compared with the composite extensible member 7A of diaper 1A, the weak functionalization region 7Z interval that weak functionalization region 7Z extends to the stretching region 70R side on right side is formed, and manufactures the continuum 70 of composite extensible member 7C.The continuum 70 of the composite extensible member 7C so manufactured is supplied to cutter sweep 706, same with the composite extensible member 7A of diaper 1A, manufacture composite extensible member 7C continuously by cutting.
Action effect when using the diaper 1C of above-mentioned the 3rd embodiment of the present invention is described.
The point different from the effect of the diaper 1A of the first embodiment is illustrated to the effect of the diaper 1C of the 3rd embodiment.The point be not particularly illustrated is identical with the effect of diaper 1A, is suitable for the explanation of the effect using diaper 1A.
As shown in Figure 7, diaper 1C can control contractility by means of only the application pattern changing 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 (X-direction).Therefore, be worn on child when waiting, stretching region 70R is not the back side in the waist portion touching child etc., but touches the position near sidepiece, and heave relative to the abdominal part of child etc. the abdominal circumference waited during wearing and change, the waist of diaper 1C easily extends, and conformability is high.
Then, the flat type disposable diaper 1D (hereinafter also referred to " diaper 1D ") of the 4th embodiment of the present invention is described based on Fig. 8.
To the diaper 1D of the 4th embodiment, the point different from the diaper 1A of the first embodiment is described, the point be not particularly illustrated is same with diaper 1A, is suitable for the explanation using 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 pull stap 51, the position that left and right is impartial is configured between 51, but in composite extensible member 7D, the amount of the fixing bonding agent 74 used of the elastomeric element 73 in the stretching region 70L in left side is less than the amount of the fixing bonding agent 74 used of the elastomeric element 73 in the stretching region 70R on right side, the contractility to width (X-direction) of the stretching region 70L in left side is formed larger than the contractility to width (X-direction) of the stretching region 70R on right side.From the view point of increasing the coating amount of bonding agent 74 to suppress the contractility of the 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 the 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 is by being formed position impartial about a pair pull stap 51,51 is configured in each other for the composite extensible member 7D formed like this, therefore same with diaper 1A, make as shown in Figure 8 drosal part B be in above and overlook from face sheet 2 side time, the contractility to width (X-direction) of the left wing region 7L between the pull stap 51 in left side and absorber 4 is greater than the contractility to width (X-direction) of the right flank region 7R between the pull stap 51 on right side and absorber 4.
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 supplied continuously from the blank roller 72a of sheet material 72, use adhesive applicating machine 740, in the mode that the stretching region 70R with the stretching region 70L in left side, right side, region from stretching region 70L to stretching region 70R are corresponding, roughly コ shape ground intermittent application bonding agent 74.When applying, the stretching region 70L in left side is identical with the area of application of the stretching region 70R on right side, but the mode being 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 being coated in sheet material 72, elastomeric element 73 is configured multiple with the state being stretched to the percentage elongation of regulation respectively, and then, on it, the continuum 710 of sheet material 71 is supplied continuously from the blank roller 71a of sheet material 71.Then, between a pair pressure holding roller 701,702, as mentioned above, for giving the continuum 710 of the sheet material 71 mode that many elastomeric elements 73 clip under the state being stretched to the percentage elongation of regulation overlapped and the continuum 720 of sheet material 72, be formed in the continuum 70a (precursor of the continuum 70 of composite extensible member 7D) being configured with 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 produced is supplied cutter sweep 706, same with the composite extensible member 7A of diaper 1A, manufacture composite extensible member 7D continuously by cutting.
In addition, manufacturing installation 700 shown in Fig. 4 only has 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 U-shaped, 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 74 of the stretching region 70L in left side, 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 is described.
The point different from the effect of the diaper 1A of the first embodiment is illustrated to the effect of the diaper 1D of the 4th embodiment.The point be not particularly illustrated is same with the effect of diaper 1A, is suitable for the explanation of the effect using diaper 1A.
As shown in Figure 8, diaper 1D can control contractility by means of only 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 of stretching region 70R between absorber 4 and pull stap 51 (X-direction) on right side, therefore, be worn on child when waiting, stretching region 70R not only with the back side contacts in the waist portion of child etc., also contact with the position near sidepiece, when dressing, relative to the abdominal circumference variation that the abdominal part of child etc. is heaved etc., the waist of diaper 1D easily extends, and conformability is high.
Then, based on Fig. 9, the flat type disposable diaper 1E (hereinafter also referred to " diaper 1E ") of the 5th embodiment of the present invention is described.
The point different from the diaper 1A of the first embodiment is only illustrated to the diaper 1E of the 5th embodiment.The point be not particularly illustrated is same with diaper 1A, is suitable for the explanation using 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 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 73 of the wire in the stretching region 70R on right side.Diaper 1E is formed by the composite extensible member 7E formed like this being configured between a pair pull stap 51,51 impartial position, left and right, therefore, same with diaper 1A, make as shown in Figure 9 drosal part B be in above and overlook from face sheet 2 side time, the contractility to width (X-direction) of the left wing region 7L between the pull stap 51 in left side and absorber 4 is greater than the contractility to width (X-direction) of the right flank region 7R between the pull stap 51 on right side and absorber 4.
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 supplied continuously from the blank roller 72a of sheet material 72, use adhesive applicating machine 740, in the mode that the stretching region 70R with the stretching region 70L in left side, right side, region from stretching region 70L to stretching region 70R are corresponding, with roughly U-shaped adhesive-applying 74 off and on.During coating, the length of the area of application of the X-direction corresponding with the stretching region 70L in left side and the stretching region 70R on right side is identical, 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 in the region corresponding with the stretching region 70R on right side.Then, on the bonding agent 74 on the continuum 720 being coated in sheet material 72, configure many elastomeric elements 73 with the state of the percentage elongation being stretched to regulation, and then, supply the continuum 710 of sheet material 71 continuously from the blank roller 71a of sheet material 71 thereon.Then, between a pair pressure holding roller 701,702, as mentioned above, for giving the continuum 710 of the sheet material 71 overlapped in the mode that the state of the percentage elongation being stretched to regulation clips by many elastomeric elements 73 and the continuum 720 of sheet material 72, be formed in the continuum 70a (precursor of the continuum 70 of composite extensible member 7E) being configured with 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, in the stretching region 70L in left side, the radical of the fixing elastomeric element 73 of bonding agent 74 is passed through more than the radical passing through the fixing elastomeric element 73 of bonding agent 74 in the stretching region 70R on right side.The continuum 70 of the composite extensible member 7E manufactured like this is supplied to cutter sweep 706, identical with the composite extensible member 7A of diaper 1A, composite extensible member 7E can be manufactured continuously by cutting.
Action effect when using the diaper 1E of above-mentioned the 5th embodiment of the present invention is described.
The point different from the effect of the diaper 1A of the first embodiment is illustrated to the effect of the diaper 1E of the 5th embodiment.The point be not particularly illustrated is same with the effect of diaper 1A, is suitable for the explanation of the effect using diaper 1A.
As shown in Figure 9, diaper 1E can control contractility by means of only 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 of stretching region 70R between absorber 4 and pull stap 51 (X-direction) on right side, therefore, be worn on stretching region 70R when child waits and not only contact side in the back of the body in the waist portion of child etc., position also near contacting side, heave relative to the abdominal part of child etc. when dressing the waistline waited to change, the waist of diaper 1E easily extends, and conformability is high.
Flat type disposable diaper of the present invention is not limited to diaper 1A, the diaper 1B of the second embodiment of above-mentioned present embodiment, the diaper 1C of the 3rd embodiment, the diaper 1D of the 4th embodiment, the diaper 1E of the 5th embodiment, can be suitable for changing.In addition, each element in the diaper 1A ~ 1E of above-mentioned first ~ five embodiment, not damaging in scope of the present invention, can be implemented proper combination.
Such as, flat type disposable diaper of the present invention also can be, comprise: have face sheet, back-sheet and the absorber that configures between which and be divided into the absorbent main body of veutro portion A, drosal part B and crotch C; Left and right two foreign side of the drosal part B in this absorbent main body connects the pair of right and left waist panel arranged; With the pull stap of outer rim being positioned at this waist panel.Such waist panel is in the fin type diaper of other parts, extensible member 7 is not a longer in the X direction composite extensible member 7A ~ 7E, but a pair (2) waist panel, the waist panel in left side to width (X-direction) contractility than the waist panel on right side the contractility to width (X-direction) greatly.
In addition, the composite extensible member 7A ~ 7E in the diaper 1A ~ 1E of above-mentioned 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, have the elastomeric element that a slice is membranaceous.
In addition, composite extensible member 7A ~ 7E in the diaper 1A ~ 1E of above-mentioned 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.
Above-mentioned embodiment discloses the disposable diaper of following deploying type.
<1> flat type disposable diaper, its absorber of lengthwise that there is face sheet, back-sheet and configure between these sheet materials, and be divided into veutro portion, drosal part and crotch, in this flat type disposable diaper
Pull stap is respectively arranged with in the both side edges portion of drosal part,
Extensible member is configured with each other at a pair above-mentioned pull stap,
Make above drosal part is in, when overlooking from face sheet side, the contractility to width in the left wing region between the above-mentioned pull stap in left side and above-mentioned absorber is greater than the contractility to width in the right flank region between the above-mentioned pull stap on right side and above-mentioned absorber.
The flat type disposable diaper of <2> as described in above-mentioned <1>, wherein,
Above-mentioned extensible member between sheet material, configures elastomeric element and the wide composite extensible member of the above-mentioned absorber of ratio formed,
The weak functionalization region that the Telescopic that above-mentioned composite extensible member has above-mentioned elastomeric element in the region overlapped with above-mentioned absorber reduces,
More the keep left contractility to width of stretching region of side of the above-mentioned weak functionalization region of ratio in above-mentioned composite extensible member is greater than the contractility to width than this weak functionalization region stretching region more on the right side in this composite extensible member.
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 the 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 used 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 used 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.
The flat type disposable diaper of <6> according to any one of above-mentioned <2> to <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 multiple respectively.
The flat type disposable diaper of <7> according to any one of above-mentioned <2> to <6>, wherein,
In above-mentioned composite extensible member, adhesive applicating the region corresponding with the stretching region in above-mentioned left side, the region corresponding with the stretching region on above-mentioned right side, from this on the left of the length direction foreign side part of stretching region to this on the right side of the region of length direction foreign side part of stretching region, apply as roughly コ shape.
The flat type disposable diaper of <8> as described in any one of above-mentioned <2> to <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%.
The flat type disposable diaper of <9> as described in any one of above-mentioned <3> to <8>, wherein,
The average regular length of the above-mentioned elastomeric element of the wire in the above-mentioned stretching region in left side is 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 on right side.
The flat type disposable diaper of <10> according to any one of above-mentioned <1> to <9>, wherein,
In above-mentioned disposable diaper, the both side edges alongst of above-mentioned crotch is formed as the arc-shaped of concavity.
The flat type disposable diaper of <11> according to any one of above-mentioned <1> to <9>, wherein,
Above-mentioned disposable diaper has the hourglass shape of length direction (Y-direction) central part shrinking as a whole.
The flat type disposable diaper of <12> according to any one of above-mentioned <1> to <11>, wherein,
Above-mentioned absorber is formed as rectangular shape longer in the longitudinal direction, above-mentioned face sheet is formed as the 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.
The flat type disposable diaper of <13> according to any one of above-mentioned <1> to <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.
The flat type disposable diaper of <14> according to any one of above-mentioned <1> to <13>, wherein,
In above-mentioned disposable diaper, the both sides alongst form three-dimensional gauffer and more lean on the leg creases of width foreign side than this three-dimensional gauffer.
The flat type disposable diaper of <15> as described in above-mentioned <14>, wherein,
Above-mentioned three-dimensional gauffer is formed by following manner: three-dimensional gauffer formation sheet material is turned back into two-layer more than, between the sheet material of turning back, configure the more than one elastomeric element of elongation state in the longitudinal direction, the three-dimensional gauffer formation sheet material being configured with this elastomeric element is configured to interior side from the width foreign side of the lateral margin of above-mentioned face sheet.
The flat type disposable diaper of <16> as described in any one in above-mentioned <2> to <15>, wherein,
In above-mentioned composite extensible member, bonding agent is with 1 ~ 10g/m
2coating amount coating.
The flat type disposable diaper of <17> according to any one of above-mentioned <1> to <16>, wherein,
Above-mentioned face sheet is non-woven fabrics.
The flat type disposable diaper of <18> according to any one of above-mentioned <1> to <17>, wherein,
Above-mentioned disposable diaper has the target sheet material engaged with above-mentioned pull stap in above-mentioned veutro portion,
Loop component is used as above-mentioned target sheet material.
Industrial utilizability
According to flat type disposable diaper of the present invention, the easiness of wearing can be improved further.
Claims (18)
1. a flat type disposable diaper, its absorber of lengthwise that there is face sheet, back-sheet and configure between these sheet materials, and be divided into veutro portion, drosal part and crotch, the feature of this flat type disposable diaper is:
Pull stap is respectively arranged with in the both side edges portion of drosal part,
Described in a pair, pull stap is configured with extensible member each other,
Make above drosal part is in, when overlooking from face sheet side, the contractility to width in the left wing region between the described pull stap in left side and described absorber is greater than the contractility to width in the right flank region between the described pull stap on right side and described absorber.
2. flat type disposable diaper as claimed in claim 1, is characterized in that:
Described extensible member between sheet material, configures elastomeric element and the composite extensible member that described in the ratio formed, absorber is wide,
The weak functionalization region that the Telescopic that described composite extensible member has described elastomeric element in the region overlapped with described absorber reduces,
More the keep left contractility to width of stretching region of side of weak functionalization region described in ratio in described composite extensible member is greater than the contractility to width than this weak functionalization region stretching region more on the right side in this composite extensible member.
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 the 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 used of the described elastomeric element in the described stretching region in left side is less than the amount of the fixing middle bonding agent used 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 according to any one of 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 multiple respectively.
7. the flat type disposable diaper according to any one of claim 2 ~ 5, is characterized in that:
In described composite extensible member, adhesive applicating the region corresponding with the stretching region in described left side, the region corresponding with the stretching region on described right side, from this on the left of the length direction foreign side part of stretching region to this on the right side of the region of length direction foreign side part of stretching region, and coating is roughly コ shape.
8. the flat type disposable diaper according to any one of claim 2 ~ 5, 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 according to any one of claim 3 ~ 5, is characterized in that:
The average regular length of the described elastomeric element of the wire in the described stretching region in left side is 1.05 ~ 1.30 double-lengths of the average regular length of the described elastomeric element of the wire in the described stretching region on right side.
10. the flat type disposable diaper according to any one of Claims 1 to 5, is characterized in that:
In described disposable diaper, the both side edges alongst of described crotch is formed as the arc-shaped of concavity.
11. flat type disposable diapers according to any one of Claims 1 to 5, is characterized in that:
Described disposable diaper has the hourglass shape of length direction (Y-direction) central part shrinking as a whole.
12. flat type disposable diapers according to any one of Claims 1 to 5, is characterized in that:
Described absorber is formed as rectangular shape longer in the longitudinal direction, described face sheet is formed as the rectangular shape larger than the overall dimensions of described absorber, and described back-sheet is formed as the hourglass shape consistent with the outer shape of described disposable diaper.
13. flat type disposable diapers according to any one of Claims 1 to 5, is characterized in that:
Described face sheet and described back-sheet extend out from the periphery of described absorber respectively, are bonded with each other at its extension.
14. flat type disposable diapers according to any one of Claims 1 to 5, is characterized in that:
In described disposable diaper, the both sides alongst form three-dimensional gauffer and more lean on the leg creases of width foreign side than this three-dimensional gauffer.
15. flat type disposable diapers as claimed in claim 14, is characterized in that:
Described three-dimensional gauffer is formed by following manner: turned back by three-dimensional gauffer formation sheet material as more than two-layer, between the sheet material of turning back, configure the more than one elastomeric element of elongation state in the longitudinal direction, the three-dimensional gauffer formation sheet material being configured with this elastomeric element is configured to interior side from the width foreign side of the lateral margin of described face sheet.
16. the flat type disposable diaper as described in any one in claim 2 ~ 5, is characterized in that:
In described composite extensible member, bonding agent is with 1 ~ 10g/m
2coating amount coating.
17. flat type disposable diapers according to any one of Claims 1 to 5, is characterized in that:
Described face sheet is non-woven fabrics.
18. flat type disposable diapers according to any one of Claims 1 to 5, is characterized in that:
Described disposable diaper has the target sheet material engaged with described pull stap in described veutro portion,
Described disposable diaper uses looped pile parts as described target sheet material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011240778A JP5922375B2 (en) | 2011-11-02 | 2011-11-02 | Unfoldable disposable diapers |
| JP2011-240778 | 2011-11-02 | ||
| PCT/JP2012/075996 WO2013065449A1 (en) | 2011-11-02 | 2012-10-05 | Expanding disposable nappy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103906491A CN103906491A (en) | 2014-07-02 |
| CN103906491B true CN103906491B (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280053581.4A Active CN103906491B (en) | 2011-11-02 | 2012-10-05 | The disposable diaper of deploying type |
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| Country | Link |
|---|---|
| JP (1) | JP5922375B2 (en) |
| CN (1) | CN103906491B (en) |
| WO (1) | WO2013065449A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2016359627B2 (en) * | 2015-11-24 | 2020-12-03 | Dsg Technology Holdings Ltd. | An elastic core composite or assembly, and a system and method for making the elastic composite assembly |
| JP6662634B2 (en) * | 2015-12-28 | 2020-03-11 | ユニ・チャーム株式会社 | Disposable wearing articles |
| JP6419114B2 (en) * | 2016-06-27 | 2018-11-07 | ユニ・チャーム株式会社 | Pants-type absorbent article |
| US11786414B2 (en) * | 2017-03-28 | 2023-10-17 | Daio Paper Corporation | Tape-type disposable diaper, and method for manufacturing tape-type disposable diaper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100345530C (en) * | 1998-03-27 | 2007-10-31 | 美国3M公司 | Elastic tab laminate material |
| CN101426464A (en) * | 2006-04-24 | 2009-05-06 | 金伯利-克拉克环球有限公司 | Absorbent articles with refastenable side seams and intuitive disposal feature |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2562288Y2 (en) * | 1990-11-07 | 1998-02-10 | トーヨー衛材株式会社 | Disposable diapers |
| JP4864585B2 (en) * | 2006-07-31 | 2012-02-01 | 大王製紙株式会社 | Paper diaper, paper diaper manufacturing method, and cutter roll device used therefor |
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2011
- 2011-11-02 JP JP2011240778A patent/JP5922375B2/en active Active
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2012
- 2012-10-05 CN CN201280053581.4A patent/CN103906491B/en active Active
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100345530C (en) * | 1998-03-27 | 2007-10-31 | 美国3M公司 | Elastic tab laminate material |
| CN101426464A (en) * | 2006-04-24 | 2009-05-06 | 金伯利-克拉克环球有限公司 | Absorbent articles with refastenable side seams and intuitive disposal feature |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5922375B2 (en) | 2016-05-24 |
| JP2013094467A (en) | 2013-05-20 |
| WO2013065449A1 (en) | 2013-05-10 |
| CN103906491A (en) | 2014-07-02 |
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