CN106456389A - Unfolding-type disposable diaper for infants weighing 3000 grams or less at birth - Google Patents

Unfolding-type disposable diaper for infants weighing 3000 grams or less at birth Download PDF

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Publication number
CN106456389A
CN106456389A CN201580026920.3A CN201580026920A CN106456389A CN 106456389 A CN106456389 A CN 106456389A CN 201580026920 A CN201580026920 A CN 201580026920A CN 106456389 A CN106456389 A CN 106456389A
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CN
China
Prior art keywords
band
waistline
diaper
flexure strip
transversely
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201580026920.3A
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Chinese (zh)
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CN106456389B (en
Inventor
矶贝友美
三宅真纪
坂口智
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Unicharm Corp
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Unicharm Corp
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Publication of CN106456389A publication Critical patent/CN106456389A/en
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Publication of CN106456389B publication Critical patent/CN106456389B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • A61F13/49017—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being located at the crotch region
    • 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
    • A61F13/53—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 absorbing medium
    • 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
    • A61F13/53—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 absorbing medium
    • A61F13/539—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 absorbing medium characterised by the connection of the absorbent layers with each other or with the outer layers
    • 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
    • A61F13/56—Supporting or fastening means
    • 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
    • A61F13/56—Supporting or fastening means
    • A61F13/5622—Supporting or fastening means specially adapted for diapers or the like

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

An unfolding-type disposable diaper (1) for infants weighing 3000 grams or less at birth, said diaper (1) having leg-surrounding elastic members (21) for constricting leg-surrounding openings (HL) in the longitudinal direction, the leg-surrounding elastic members (21) each being provided in the longitudinal direction in positions on both sides in the transverse direction in a crotch section (1m). A back-side section (1b) has a waist-surrounding elastic sheet (31) for constricting a waist-surrounding opening (HB) in the transverse direction, the waist-surrounding elastic sheet (31) being provided so as to extend to both sides in the transverse direction. When the diaper (1) is unfolded, end sections in the transverse direction of the waist-surrounding elastic sheet (31) are positioned with respect to the transverse direction at the same positions as end sections on the back side in the longitudinal direction of the leg-surrounding elastic members (21) nearest thereto, or are positioned further outside in the transverse direction relative to the end sections of the leg-surrounding elastic members (21) nearest thereto, and the waist-surrounding elastic sheet (31) is disposed astride longitudinal center positions (C11m) of engaging sections (11m) of fastening tapes (11) in the longitudinal direction.

Description

The flat type disposable diaper of the SFD in below 3000g for the body weight
Technical field
The present invention relates to a kind of flat type disposable diaper of the SFD in below 3000g for body weight.
Background technology
Traditionally it is known that flat type disposable diaper (open-type disposable diaper).This deploying type is once Property diaper include along the longitudinally veutro portion of configuration, crotch and drosal part, and there is general hourglass shape in plan view.Then, The fixing band at both ends transversely being arranged on drosal part is engaged with the object tape of veutro portion, thus form waistline opening and A pair of leg circumference opening, this diaper is worn by diaper user.
Prior art literature
Patent documentation
Patent documentation 1：Japanese Unexamined Patent Publication 2002-253608 publication
Content of the invention
Problems to be solved by the invention
On the other hand, body focuses on the LBWI of below 3000g.Additionally, this SFD may be Their plenty of time is spent to be in the flexion posture of the fetus shape in parent after birth.The flexion posture of this fetus shape is also Be referred to as position posture, this positioning posture is the posture making back bend into C-shaped in side view as shown in Figure 1A, additionally for It has been subject to such as to make baby be located at the prostrate of the unshowned suitable safe handling of cushion pad (cutout cushion) cutting out Posture.Subsequently, it is appropriately performed position change to back floating position etc., but their plenty of time is spent in appearance of lying on the back by them In gesture.Additionally, depending on SFD 101, it may be desirable to ground can be applied not from the viewpoint of avoiding being unnecessary for stress Touch the design of the minimum treat of his/her body.Additionally, this flat type disposable diaper 1 ' is used for this SFD.
Figure 1B illustrates the B-B arrow view of Figure 1A, and here, in this positioning posture, SFD 101 is in and makes him / her knee is close and makes his/her lower limb with the separate state of M word almost in contact with his/her abdomen area simultaneously. Thus, engage veutro portion 1a ' in object tape 15 ' fixing band 11 ' by knee and thigh from leg-openings HL ' side is pushed to Waistline opening HB ' side.Further, since baby's his/her plenty of time is spent in positioning posture, this lifting force F continues The effect long time.Thus, as shown in the schematic side elevation of Fig. 1 C, band is 11 ' from leg-openings HL ' side is towards waistline opening HB (the point region see in Fig. 1 C) is gradually peeled off in side, and eventually disengages from.Additionally, in the case of having disengaged from, fixing band 11 ' should be again Secondary joint, but in this case, do not leave choice, SFD 101 can only be touched, this has run counter to minimum place Reason.
Additionally, as described above, in positioning posture, baby is in the front lying position in C-shaped in side view, however, In this posture, because back bow becomes Figure 1A like that, clearance G can be produced between the drosal part 1b ' of back and diaper 1 '. Then, diaper 1 ' should be worn in the way of reducing clearance G again, and result is similar with above-mentioned situation, does not stay selection remaining Ground, can only touch SFD 101, this has run counter to minimum treat (minimum handling).
In view of above-mentioned traditional problem is made that the present invention, the present invention relates to a kind of body weight is in the under-weight of below 3000g Flat type disposable diaper for baby, and so that the drosal part of diaper and back is in close contact, and suppress to connect with veutro portion simultaneously The fixing band closed is peeled off from veutro portion and is departed from.
For solution to problem
To achieve these goals, an aspect of of the present present invention is
A kind of flat type disposable diaper of the SFD in below 3000g for body weight, described diaper includes：Veutro Portion, described veutro portion described SFD veutro along landscape configuration；Crotch, described crotch is configured at described under-weight The crotch of baby；And drosal part, described drosal part described SFD dorsal part along landscape configuration, described veutro Portion, described crotch and described drosal part with the longitudinal direction of described quadrature transverse on arrange, described drosal part have described in transversely Each end, described each end is configured to junction surface and described veutro via the fixing band being respectively arranged at described each end Portion engages, and to form a waistline opening and a pair of leg circumference opening, described diaper includes：
Calf circumference elastic component, described calf circumference elastic component is on the position edge of both sides transversely described in described crotch Described longitudinally disposed, described calf circumference elastic component is constructed such that described leg-openings along described longitudinal contraction；And
Waistline flexure strip, described waistline flexure strip be set to extend in described drosal part described in both sides transversely, institute State waistline flexure strip and be constructed such that described waistline opening along described cross-direction shrinkage, wherein,
Under described diaper unfolded state,
In the cross direction, each end transversely of described waistline flexure strip is located at and immediate described calf circumference respectively The position identical position of the end of the dorsal part in the longitudinal direction of elastic component or the lateral outer side of the end positioned at described dorsal part；And And in described longitudinal direction, described waistline flexure strip is configured to described vertical along the described junction surface longitudinally across described fixing band Middle position upwards.
Referring to the drawings, will be apparent for other features making the present invention by this specification.
The effect of invention
The present invention relates to a kind of flat type disposable diaper of the SFD in below 3000g for body weight, it is permissible So that the drosal part of diaper and back is in close contact, and suppress the fixing band engaging with veutro portion to peel off and de- from veutro portion simultaneously From.
Brief description
Figure 1A is to illustrate that SFD 101 is in the schematic side elevation of positioning posture, and Figure 1B is for illustration B-B arrow view in Figure 1A of lifting force F of fixing band 11 ', and Fig. 1 C be illustrate by lifting force F peel off fixing band The schematic side elevation of 11 ' state.
Fig. 2 is the schematic plan view illustrating the disposable diaper 1 being in deployed condition according to present embodiment.
Fig. 3 A, Fig. 3 B and Fig. 3 C are Section A-A figure in Fig. 2, section B-B figure and C-C sectional view respectively.
Fig. 4 is the schematic perspective view illustrating disposable diaper 1 when worn.
Fig. 5 is for another improved figure made according to the disposable diaper 1 of present embodiment for explanation, and is to show The schematic plan view of the diaper in deployed condition for the source.
Fig. 6 is that the bonding station being engaged with object tape 15 in fixing band 11,11 is in and clips absorption from both sides transversely The low rigid portion of body 3 divides the explanatory diagram in the case of the position of 3na.
Fig. 7 is the contraction live part 31a and inactive portion 31n being included in waistline flexure strip 31 for explanation Figure.
Fig. 8 is the explanatory diagram in the case that fixing band 11,11 engages in the state of overlapping each other.
Fig. 9 is for measuring the figure of the method for the engaging force (N/10mm) of fixing band 11 for explanation.
Specific embodiment
At least following item will become obvious from the specification and drawings.
A kind of flat type disposable diaper of the SFD in below 3000g for body weight, described diaper includes：Veutro Portion, described veutro portion described SFD veutro along landscape configuration；Crotch, described crotch is configured at described under-weight The crotch of baby；And drosal part, described drosal part described SFD dorsal part along landscape configuration, described veutro Portion, described crotch and described drosal part with the longitudinal direction of described quadrature transverse on arrange, described drosal part have described in transversely Each end, described each end is configured to junction surface and described veutro via the fixing band being respectively arranged at described each end Portion engages, and to form a waistline opening and a pair of leg circumference opening, described diaper includes：
Calf circumference elastic component, described calf circumference elastic component is on the position edge of both sides transversely described in described crotch Described longitudinally disposed, described calf circumference elastic component is constructed such that described leg-openings along described longitudinal contraction；And
Waistline flexure strip, described waistline flexure strip be set to extend in described drosal part described in both sides transversely, institute State waistline flexure strip and be constructed such that described waistline opening along described cross-direction shrinkage, wherein,
Under described diaper unfolded state,
In the cross direction, each end transversely of described waistline flexure strip is located at and immediate described calf circumference respectively The position identical position of the end of the dorsal part in the longitudinal direction of elastic component or the lateral outer side of the end positioned at described dorsal part；And And in described longitudinal direction, described waistline flexure strip is configured to described vertical along the described junction surface longitudinally across described fixing band Middle position upwards.
According to this flat type disposable diaper, in the horizontal, each end transversely of waistline flexure strip be located at respectively with The position identical position of the end of dorsal part in the longitudinal direction of immediate calf circumference elastic component or the horizontal stroke of the end positioned at dorsal part Laterally.Thus, end is difficult to be affected it is thus possible to make the end of waistline flexure strip by the power producing in calf circumference elastic component The contractility in portion itself acts rapidly on fixing band as tensile force transversely.Thus, shearing force transversely is added Junction surface in fixing band, thus junction surface can be engaged with veutro portion with high bonding force, result can suppress solid effectively Fixed band is peeled off and is departed from.
Additionally, waistline flexure strip is configured to edge longitudinally across the middle position in the longitudinal direction in the junction surface of fixing band, Thus above-mentioned contractility can be transferred to fixing band with the approximate equality distribution of less skew in the vertical, and this has additionally aided Effect ground suppresses above-mentioned stripping and disengaging.
Additionally, this waistline flexure strip has sheet form, thus compared with the situation using the elastic component of strip, tensile force Fixing band can be acted on the approximate equality distribution of less skew in the vertical, and this additionally aids the above-mentioned stripping of suppression and takes off From.
Furthermore, it is possible to the SFD being in positioning posture bow become the back of C-shaped and diaper drosal part it Between the contractility based on waistline flexure strip for the gap that produces and reduce.Thus the drosal part of diaper can be with the back of the body of SFD Portion is in close contact.
It is desirable to the described end of described waistline flexure strip is in described end in this flat type disposable diaper Described outer end transversely and be connected to immediate described fixing band.
According to this flat type disposable diaper, outer end transversely in end for the waistline flexure strip is connected to fixation Band.Thus, the contractility of end can quickly and reliably act on fixing band.
In this flat type disposable diaper it is desirable to
With described longitudinal direction and described laterally all orthogonal direction along the described diaper being in deployed condition thickness direction,
Described diaper includes：Described veutro portion, described crotch and described drosal part along described longitudinal extension absorption Body；And the non-skin side from described thickness direction covers the leakage prevention sheet of described absorber, and
When observing from described thickness direction, described waistline flexure strip is heavy with described absorber and described leakage prevention sheet Folded, described each end transversely of described waistline flexure strip is located at the described horizontal stroke with described absorber and described leakage prevention sheet The position identical position of ora terminalis upwards or the lateral outer side being located at described ora terminalis.
In this flat type disposable diaper, each end transversely of waistline flexure strip is located at and absorber and leakage prevention sheet The position identical position of both ora terminalis transversely or the lateral outer side being located at ora terminalis.Thus, in order to wear diaper, when solid When determining band and being transversely stretched, end can not from absorber and leakage prevention sheet receive on the whole in the case of drag freely Elongation.Thus, the contractility producing in end can act rapidly on fixing band.
In this flat type disposable diaper it is desirable to
Described absorber includes dorsal part low rigid portion corresponding with the position of described drosal part and divides, described dorsal part low rigid portion Divide and there is the rigidity lower than the rigidity of peripheral part, and
When observing from described thickness direction, described dorsal part low rigid portion is divided overlapping with described waistline flexure strip.
According to this flat type disposable diaper, dorsal part low rigid portion is divided overlapping with waistline flexure strip.Thus, when diaper is worn When fixing band is transversely stretched, at least dorsal part low rigid portion in absorber is divided and is transversely promptly shunk, the back of the body Side low rigid portion is divided and is not caused strong resistance.Thus, waistline flexure strip can be extended with little tensile force.As a result, it is possible to easily Contractility is produced in waistline flexure strip.
Additionally, dorsal part low rigid portion partial volume easily shrinks in the transverse direction.Thus, when worn, dorsal part low rigid portion is divided and is passed through The contractility of waistline flexure strip promptly shrinks.Thus, it is possible to the bow in the SFD being in positioning posture becomes C-shaped Contraction that the gap producing between back and the drosal part of diaper is divided based on dorsal part low rigid portion and reduce rapidly.
In this flat type disposable diaper it is desirable to
Described veutro portion include being configured to the junction surface of the described fixing band of each end of described drosal part in every The target area that one engages,
Described absorber includes veutro low rigid portion corresponding with the position of described veutro portion and divides, described veutro low rigid portion Divide and there is the rigidity lower than the rigidity of peripheral part, and
When observing from described thickness direction, described veutro low rigid portion is divided overlapping with described target area.
According to this flat type disposable diaper, the bonding station that the junction surface of fixing band is engaged with target area when wearing It is in the case that both sides transversely clip the position that veutro low rigid portion is divided, veutro low rigid portion partial volume is changed places based on waistline The contractility of flexure strip and expand.Then, junction surface is transversely somewhat moved in association with expanding operation, can by this junction surface To coordinate with target area and to be positively engaged in target area, this can make the joint between junction surface and target area more firm Gu.
In this flat type disposable diaper it is desirable to
The junction surface of described fixing band has following shape：This shape has the side positioned at described inner side transversely,
Described calf circumference elastic component is that have along described long a pair longitudinal side with along described horizontal a pair of short edges Banding flexure strip, and
A part for described waistline flexure strip be located at quadrilateral area in, using in the pair of minor face positioned at dorsal part The side of minor face and the inner side transversely at junction surface being located at described fixing band marks off described quadrilateral area, described minor face and Described side is relative edge.
According to this flat type disposable diaper, a part for waistline flexure strip is located in above-mentioned quadrilateral area.Additionally, four Side shape region can be from calf circumference elastic component to the bang path of the junction surface of fixing band transmission for power.Thus, even if from lower limb Enclose in the case that junction surface is pulled to downwards the power of leg-openings side by elastic component transmission, this power passes through above-mentioned waistline flexure strip A part is reduced and is passed to junction surface, thus, it is possible to effectively suppress fixing band to peel off due to this power.
In this flat type disposable diaper,
Described waistline flexure strip includes：Live part, described live part is constructed such that described waistline opening along described Cross-direction shrinkage；And inactive portion, described inactive portion is configured to not make described waistline opening along described cross-direction shrinkage, and
Described inactive portion be located at described waistline flexure strip described each end transversely and be located at described fixing band and Between described live part.
According to this flat type disposable diaper, inactive portion is located between fixing band and live part.Thus, when transversely During stretching fixing band, inactive portion is easier to extend.The contractility producing subsequently, based on this elongation can be used as transversely Tensile force and act rapidly on fixing band.Thus, the junction surface of fixing band can be connect with suitable engaging force and veutro portion Close.
In this flat type disposable diaper,
The fixing band of the one end in described each end is first band, the fixing band of the other end is the second band, described The junction surface of first band engage with described veutro portion and described second band junction surface in an overlapping manner with described first band In the case that the surface of disengaged portion side engages, the surface of the junction surface of described second band and the disengaged portion side of described first band Between engaging force be more than 0.1N/10mm, between the junction surface of described first band and described veutro portion with N/10mm as list The engaging force in units of N/10mm between the junction surface of the engaging force of position and described second band and described veutro portion is respectively Be set to be greater than described first band the surface of disengaged portion side and described second band junction surface between with N/10mm be The engaging force of unit, and
Described second band junction surface engage with the surface of the disengaged portion side of described first band in an overlapping manner and Middle position in the described longitudinal direction of the middle position in the described longitudinal direction of described first band and described second band is aligned to that In the case that this is consistent, described first band and described second band are set as follows：The junction surface of described second band is from institute State first band and extend out to the both sides in described longitudinal direction.
According to this flat type disposable diaper, engage with the surface of the disengaged portion side of first band at the junction surface of the second band In the case of engaging force be more than 0.1 (N/10mm).Thus, the form overlapping each other in fixing band (below, is also known as " fixing band reduplicative formses ") in, first band and the second band can reliably be engaged with veutro portion.That is, the connecing of first band Conjunction portion can be engaged with veutro portion, and the junction surface of the second band reliably can be engaged with the surface of the disengaged portion side of first band.
Additionally, in the case of " fixing band reduplicative formses ", first band and the second band can close to veutro portion transversely Middle body, these first bands and the second band can be kept away from the lower limb of SFD.As a result, apply from the lower limb in M shape It is added to first band and the above-mentioned lifting force of the second band reduces, thus suppression first band and the second band are peeled off and departed from.
Additionally, according to above-mentioned construction, the second band can be strengthened as overall engagement state, and can make to be in admittedly simultaneously Surely the second band with reduplicative formses easily departs from from first band.Details is as follows.
First, as mentioned above so that the engaging force (N/10mm) between the male member of first band and veutro portion is more than first Engaging force (N/10mm) between the junction surface of the surface of disengaged portion side of band and the second band.Thus, in the second band by protecting Hold this band in the case of first band disengaging, first band can be effectively prevented and also depart from from veutro portion together, thus only second Band can depart from from first band in stable first band.Thus it becomes able to easily depart from the second band from first band, this has Effect ground contributes to above-mentioned minimum treat.
On the other hand, in fixing band reduplicative formses, as described above, the junction surface of the second band is engaged in the non-of first band and connects The surface of conjunction portion side, simultaneously second band junction surface there is the shape extended to the both sides longitudinal direction from first band.Additionally, from The part that first band is extended is engaged with veutro portion, and the engaging force (N/10mm) being engaged with veutro portion here is set to more than with the The engaging force (N/10mm) that the surface of the disengaged portion side of one band engages.Thus, the engaging force at the junction surface of the second band can carry The partly corresponding amount that height is extended with this.
===present embodiment===
Fig. 2 is the schematic plan view illustrating the disposable diaper 1 being in deployed condition according to present embodiment.This Outward, Fig. 3 A, Fig. 3 B and Fig. 3 C are Section A-A figure in Fig. 2, section B-B figure and C-C sectional view respectively.Additionally, Fig. 4 is to illustrate The schematic perspective view of disposable diaper 1 when worn.
Diaper 1 is used exclusively for the diaper of the SFD in below 3000g for the body weight, and is by low using fixing band 11 The deploying type diaper 1 of birth weight babies 101 dress.Then, the diaper 1 being in deployed condition as shown in Figure 2 has as each other just Hand over three directions longitudinally, laterally and thickness direction.Here, with respect to longitudinal direction, including veutro portion 1a being arranged in order, crotch 1m and drosal part 1b, under the wearing effect of Fig. 4, veutro portion 1a covers the veutro of SFD 101, and crotch 1m covers baby 101 crotch, drosal part 1b covers the dorsal part of baby 101.
Note, in the deployed condition of Fig. 2, veutro portion 1a and drosal part 1b two pleurapophysis in the horizontal from crotch 1m respectively Go out.Then, diaper 1 is when outer shape when thickness direction is observed is in plan view for general hourglass shape.Hereinafter, veutro portion Part 1asf, 1asf that the both sides in the horizontal of 1a project is also known as " veutro fin 1asf ", drosal part 1b horizontal On both sides project part 1bsf, 1bsf be also known as " dorsal fin 1bsf ".Note, dorsal fin 1bsf with according to scheme " each end transversely " corresponding.Additionally, following, the side side on thickness direction is also known as " skin side ", the opposing party side It is also known as " non-skin side ".In in this respect, the schematic plan in Fig. 2 illustrates and is in expansion when observing from skin side The diaper 1 of state.
Here, as shown in Fig. 2 fixing band 11 is configured to the top in the outside transversely of each dorsal fin 1bsf respectively End transversely projects.Then, fixing band 11 engages (Fig. 2, figure with the object tape 15 of the non-skin side being arranged on veutro portion 1a 3A), thus as shown in figure 4, defining waistline opening HB and a pair of leg circumference opening HL, HL, diaper 1 is worn by SFD 101 ?.
Diaper 1 includes：Absorber 3, it is the substantially elongate shape of the discharged liquid absorbing urine etc.；Liquid permeability is just Dough sheet 2, it covers absorber 3 from skin side；Liquid impermeability leakage prevention sheet 4, it covers absorber 3 from non-skin side；Exterior Piece 5, it is from non-skin side covering leakage prevention sheet 4 and the general hourglass shape of the outer shape of formation diaper 1；A pair three-dimensional rivel Piece 6,6, it is transversely arranged side by side in couples positive dough sheet 2, and forms solid rivel portion 6g, 6g respectively, as absorber 3 Each end leakage preventing wall transversely.
As shown in Fig. 3 A to Fig. 3 C, absorber 3 includes absorbent core 3c and the substantially whole periphery covering absorbent core 3c The core wrap sheet 3rs in face.Absorbent core 3c is by by the liquidabsorbing fibres of pulp fibers etc. and such as super-absorbent Property polymer (below be also known as SAP) etc. liquid-absorbent shot-like particle be formed as reservation shape example plan view In general hourglass shape and obtain.The liquid permeability piece of tissue paper, non-woven fabrics etc. is used for core wrap sheet 3rs.This Outward, part 3cna, 3cnb not including the structural material of absorbent core 3c of pulp fibers etc. is set with reservation shape respectively Put the both ends in the longitudinal direction of absorbent core 3c, this will be described after a while.
Positive dough sheet 2 is made up by the non-woven fabrics of (air through) non-woven fabrics etc. of air, and as Fig. 2 and Fig. 3 A To shown in Fig. 3 C, having the planar dimension that the both sides from the longitudinal direction of absorber 3 and both sides transversely are extended.Additionally, it is anti- Dropping fraction 4 also has both sides from the longitudinal direction of absorber and both sides transversely are extended flat shape and by such as polyethylene The resin film of film etc. is made.Then, the vertical and horizontal from absorber 3 extend partly in, these pieces 2,4 pass through viscous Connect, welding etc. is bonded together, thus absorber 3 is maintained between piece 2 and 4.
As shown in Fig. 2 outer load 5 is made up of suitable non-woven fabrics etc., and define the outer shape of diaper 1.Then, on In the way of stating piece 2,4 and the absorber 3 that is maintained between piece 2,4 middle position in the horizontal being in alignment with each other by it stacked outside The skin side of load 5, and (Fig. 3 A to Fig. 3 C) is integrated with each other by bonding, welding etc..Note, in this integrated state, Absorber 3 extends (Fig. 2) throughout veutro portion 1a, crotch 1m and drosal part 1b.
Three-dimensional rivel piece 6,6 is arranged in pairs into corresponding with each end 2e, 2e transversely of positive dough sheet 2, thus respectively From skin side covering each end 2e, 2e.Then, piece 6,6 erects from the skin side surface of positive dough sheet respectively along being longitudinally formed Three-dimensional rivel portion 6g, 6g.That is, in the vertical bonding is passed through with elongation state along longitudinal multiple rubber covered wire 6r, 6r Etc. the ora terminalis of the inner side transversely being fixed on three-dimensional rivel piece 6, and piece 6 is with the outside transversely of the ora terminalis inside this Precalculated position P6g be fixed on positive dough sheet 2 as fixed position.Then, when the elongation state of rubber covered wire 6r relaxes, three-dimensional pleat The ora terminalis of the inner side of pleat piece 6 and neighbouring part are longitudinally-contracted by the contractility of rubber covered wire 6r, therefore the end of inner side Edge and neighbouring part are promptly erected from the skin side surface of positive dough sheet 2 using above-mentioned fixed position P6g as set-up positions, It is consequently formed three-dimensional rivel portion 6g.
Note, as shown in Fig. 2 and Fig. 3 A to Fig. 3 C, three-dimensional rivel piece 6 extends to and outer load 5 to outside transversely The roughly the same position of ora terminalis in outside, and bonding or welding and outer load are passed through in the position at this ora terminalis or near this ora terminalis 5 integrations.Thus, three-dimensional rivel piece 6 and outer load 5 coordination with one another, to form veutro in veutro portion 1a and drosal part 1b respectively Fin 1asf, 1asf and dorsal fin 1bsf, 1bsf.On the other hand, in crotch 1m, similarly, three-dimensional rivel piece 6 and exterior Piece 5 at ora terminalis or near position pass through bonding or welding integrated, thus pre- from this ora terminalis to inner side transversely Determine scope and form lower limb fin 1mf, 1mf.
Lower limb fin 1mf, 1mf are will to become the part of leg-openings HL under wearing effect respectively, that is, cover and enclose Part around the lower limb of SFD 101.Then, in lower limb fin 1mf, along strip-like resilient piece 21 difference of longitudinal straight line To be fixed to the lower limb fin 1mf as calf circumference elastic component 21 along longitudinal elongation state, by bonding etc., so that lower limb fin 1mf is longitudinally-contracted, to form leg gather pleat portion.Thus, when the elongation state of calf circumference elastic component 21 relaxes, lower limb fin 1mf Longitudinally-contracted to be formed the multiple rivel portions for leg gather pleat portion.
Incidentally, in the present embodiment, as shown in Figure 3 B, calf circumference elastic component 21 is inserted in outer load 5 and three-dimensional pleat Between pleat piece 6, but not limited to this.For example, this component can bond to the non-skin side surface of outer load 5, or can be with bonding Skin side surface to three-dimensional rivel piece 6.
Additionally, in the present embodiment, this strip-like resilient piece 21 is by flexible nonwoven fabrics (including polyurethane fiber etc. Elastomeric fibre and there are the non-woven fabrics of retractility based on the elasticity of its own) make, but not limited to this.Namely Say, as long as this piece has retractility based on its own elasticity in the case of relying on rubber covered wire, flat rubber etc., then permissible Using other kinds of.It is, for example possible to use retractility film (includes elastomer and has retractility based on the elasticity of itself Film).
As shown in fig. 2 and fig. 3 a, fixing band 11,11 be respectively arranged at a pair of dorsal fin 1bsf, 1bsf transversely Top ends.Fixing band 11 is used the banding piece being made up of non-woven fabrics of shape of growing crosswise as band base material 11a respectively, respectively carries base material The one end transversely of 11a is fixed to the top ends of dorsal fin 1bsf, and the other end is to the top ends of dorsal fin 1bsf Transversely protruding outside.
Then, male member 11m (corresponding with junction surface) of hook-and-loop is fixed to the skin side surface of this ledge, In addition multiple copulational protuberance (not shown) are arranged at the skin side surface of male member 11m.Thus, the copulational protuberance of male member 11m Hooked to the non-skin side surface of object tape 15, so that fixing band 11 is engaged with object tape 15.Known hook-and-loop can To be applied to this male member 11m, for example, can be suitably used the hook-and-loop that copulational protuberance is fish hook shape, T-shaped etc..
As shown in fig. 2 and fig. 3 a, object tape 15 (corresponding with target area) is arranged at the non-skin side surface of outer load 5, The non-skin side surface of described outer load 5 is the non-skin side surface of veutro portion 1a.In the present embodiment, band 15 is square of growing crosswise Shape shape, then object tape 15 as follows outer load 5 is fixed on by bonding or welding：Described object tape 15 and described outer The middle position transversely of load 5 is in alignment with each other.Additionally, in the present embodiment, in order to increase with respect to fixing band 11 Engaging force, has 25 (g/m2) more than basic weight the air in rectangular shape of growing crosswise by non-woven fabrics be used for object tape 15.By This is it is ensured that engage required engaging force for suitable.0.1 can be illustrated as the estimation engaging force needed for suitable joint (g/10mm) more than.After a while description is used for measuring method of this engaging force etc..
Incidentally, the material of object tape 15 is not limited to above-mentioned air by non-woven fabrics.As long as that is, can be solid Surely guarantee engaging force as above between band 11 and male member 11m, it is possible to use the nothing in addition to above-mentioned spun-bonded non-woven fabrics Spin cloth, or female component that the such as ring material of known hook-and-loop can be used in the case of not using non-woven fabrics. Additionally, when outer load 5 is non-woven fabrics, outer load 5 is used as object tape, and thus can omit special object tape 15.
Then, when this diaper 1 is worn by SFD, using a pair of fixing band 11,11 to both sides transversely While stretching diaper 1, this is engaged with object tape 15 to fixing band 11,11.Incidentally, in the present embodiment, carry base material 11a is also transversely projected into the outside of male member 11m, and these ledges 11ap is used as when fixing band 11 is stretched to both sides Maintaining part 11ap being kept.
The basic structure of diaper 1 is described above, in the present embodiment, has made some premises improved to solve To problem (suppression fixing band 11 peel off and depart from and make drosal part 1b with the back of the body be in close contact these problems).Hereinafter, will be right This is described.
Fig. 5 is this improved explanatory diagram and is in mild-natured with the signal of the deployed condition identical deployed condition in such as Fig. 2 Face figure.First improves the elastic component 31 being related to provide retractility to waistline opening HB.Although that is, not carrying above And, in this example, in order to by retractility give waistline opening HB, for rectangular shape of growing crosswise banding flexure strip 31 (below It is also known as waistline flexure strip 31) it is arranged in drosal part 1b, this makes part corresponding with waistline opening HB not make in external force Laterally shrink in drosal part 1b under naturalness.More specifically, this flexure strip 31 both sides in the horizontal extend, and This piece 31 in the state of laterally elongated by bonding or welding be fixed on the thickness direction of piece 31 with skin side and non- The adjacent component in skin side 2,3,4,5 and 6.Thus, if elongation state relaxes to enter naturalness, it is fixed to flexure strip 31 partly mainly laterally shrink in drosal part 1b, to form multiple rivel portions.Therefore, flexure strip 31 can be transversely fast Extend, until this rivel portion extends in tension, such waistline opening HB is in the state being endowed retractility fastly.
Note, as understood with reference to Fig. 5 and Fig. 3 A, fixing component is according on horizontal and vertical with flexure strip 31 Each position, through-thickness adjacent with non-skin side and skin side with upper member 2,3,4,5 and 6 in change.For example, as schemed Shown in 3A, leakage prevention sheet 4 non-skin side in a thickness direction is present in middle position side transversely, thus at this position, Piece 31 is fixed to leakage prevention sheet 4.However, because leakage prevention sheet 4 does not exist in the position of each side in the horizontal, therefore flexure strip 31 It is fixed to outer load 5.Additionally, as shown in Fig. 5 and Fig. 3 A, because absorber 3 is present in the position of skin side in a thickness direction In center side transversely and the position of center side that is located in longitudinal direction, therefore piece 31 is fixed on absorber 3 at this position.So And, at the position that there is not absorber 3, piece 31 is fixed to positive dough sheet, in addition even do not exist positive dough sheet 2 positioned at horizontal On the position of each side at, piece 31 is fixed to three-dimensional rivel piece 6.
Then, in the present embodiment, in the diaper 1 being in deployed condition as shown in Figure 5, flexure strip 31 is to horizontal On both sides extend, to as little as close to the position of fixing band 11,11, thus each end 31e1 transversely of flexure strip 31, 31e1 is located relative to laterally with the dorsal part in the longitudinal direction of calf circumference elastic component 21 respectively closest to end 21e2,21e2 phase With position or be located at the described outside transversely closest to end 21e2,21e2.
Thus, each end 31e1,31e1 are affected by the power that produces in calf circumference elastic component 21 is less, therefore waistline Each end 31e1,31e1 of flexure strip 31 may make the contractility of their own transversely promptly act on as tensile force respectively In immediate fixing band 11,11.Thus, shearing force in the horizontal is added to the situation of male member 11m of restraint zone 11 Under, male member 11m can be made to engage with the object tape 15 of veutro portion 1a with high bonding force, result can suppress fixing band effectively 11 peel off and depart from.
Incidentally, here " deployed condition " indicates the shape that fixing band 11,11 is not engaged with object tape 15 as shown in Figure 5 State；Veutro portion 1a, crotch 1m and drosal part 1b are in along state longitudinally arranged side by side；And diaper 1 longitudinally and laterally on stretch Long, until the contraction with the corresponding part of waistline opening HB based on waistline elastomer 31 with based on a pair of leg circumference elastic component 21st, the contraction of 21 a pair of lower limb fin 1mf, 1mf disappears.
Additionally, under deployed condition in Figure 5, waistline flexure strip 31 is arranged to the public structure across fixing band 11 in the vertical Middle position C11m in the longitudinal direction of part 11m.Specifically, flexure strip 31 all positions in its transverse direction include connecting one admittedly Surely the middle position of male member 11m of the middle position C11m in the longitudinal direction with 11 male member 11m and another fixing band 11 The line segment LNC11m of C11m.Thus, flexure strip 31 can be distributed above-mentioned contraction with the approximate equality of less skew in the vertical Power is transferred to fixing band 11,11, and this also contributes effectively to suppress above-mentioned stripping and disengaging.
Incidentally, inventor has confirmed that, in order to improve this effect it should make male member 11m and flexure strip 31 it Between overlapping ratio in the vertical (male member 11m and elasticity are removed by greatest measurement L11m in the longitudinal direction by male member 11m Lap LOL (mm) in the vertical between piece 31 and obtain percent value) be more than 70%.
Additionally, waistline flexure strip 31 is the elastica comprising suitable elastomer resin, thus piece 31 itself has elasticity. Therefore, compared with the situation using multiple rubber covered wires or flat rubber, tensile force can be substantially equal with less skew in the vertical Equal distribution acts on fixing band 11, and this also contributes effectively to suppress above-mentioned stripping and disengaging.
Furthermore, it is possible to the clearance G producing in the positioning posture shown in Figure 1B, that is, can be in SFD 101 Bow become the contractility also based on flexure strip 31 for the clearance G producing between the back of C-shaped and the drosal part 1b of diaper 1 to subtract Little.Thus, the drosal part 1b of diaper 1 can be in close contact with the back of SFD 101.
First improvement is described above, this first improvement is necessary in the diaper 1 according to the present invention.The opposing party Face, improvement explained below is not required, but using these improvement, can more effectively solve problem above.Thus, In the diaper 1 according to present embodiment, following improvement can also be set.
First, in the present embodiment, as shown in figure 5, each end 31e1 transversely of waistline flexure strip 31 exists respectively The outer end 31e1e transversely of end 31e1 is connected to nearest fixing band 11.
Thus, the contractility of end 31e1 can quickly and reliably act on fixing band 11.Then, this also has effectively Help suppress above-mentioned stripping and disengaging.
Additionally, in this example, as shown in figure 5, waistline flexure strip 31 is arranged to when when thickness direction is observed and absorption Both body 3 and leakage prevention sheet 4 are overlapping.In this case, each end 31e1,31e1 transversely of waistline flexure strip 31 be located at The position identical position of the ora terminalis transversely of both absorber 3 and leakage prevention sheet 4, or it is located at transversely outer of this ora terminalis Side.
Thus, for by the diaper worn 1, when the both sides being stretched to transversely by fixing band 11, waistline flexure strip 31 at least each end 31e1,31e1 can not from absorber 3 and leakage prevention sheet 4 receive on the whole in the case of drag freely Ground extends.The contractility thus producing in the 31e1 of end as when making fixing band 11 engage with object tape 15 transversely Tensile force can act rapidly on fixing band 11, and therefore this can also contribute effectively to suppress above-mentioned stripping and disengaging.
Additionally, in the present embodiment, as shown in figure 5, absorber 3 has low rigidity corresponding with the position of drosal part 1b Part 3nb (with dorsal part low rigid portion divide corresponding), this low rigid portion divides 3nb to have the rigidity lower than the rigidity of part about. That is, in the present embodiment, do not have pulp fibers, SAP etc. any materials of absorbent core 3c in plane In figure space 3cnb triangular in shape is formed at the lateral center position of the end of dorsal part in the longitudinal direction of absorbent core 3c, thus Above-mentioned low rigid portion divides 3nb to be formed at absorber 3.Additionally, when observing from thickness direction, low rigid portion divides 3nb and waistline bullet Property piece 31 overlapping.
Thus, in the case of fixing band 11 being stretched to both sides transversely when diaper 1 is worn, in absorber 3 In at least low rigid portion divide 3nb transversely promptly to shrink, this low rigid portion divides 3nb not act as big opposing.Thus, Waistline flexure strip 31 can be extended with relatively small tensile force, and result easily can produce in waistline flexure strip 31 shrinks Power.
However, absorbent core 3c's divides corresponding part 3cnb of 3nb to be not limited to above-mentioned space with low rigid portion.Namely Say, as long as space has the basic weight (g/m less than the basic weight of part about2), then accordingly can play the effect above, thus Some structural materials of absorbent core 3c can be contained in above-mentioned part 3cnb.
Additionally, in the present embodiment, as shown in figure 5, absorber 3 includes low rigidity corresponding with the position of veutro portion 1a Part 3na (with veutro low rigid portion divide corresponding), this low rigid portion divides 3na to have the rigidity lower than the rigidity of part about. That is, in the present embodiment, there is the space along horizontal upper bottom and the trapezoidal in plan view shape gone to the bottom 3cna is formed at the lateral center position of the end of the veutro in the longitudinal direction of absorbent core 3c, is thus formed in absorber 3 State low rigid portion and divide 3na.Additionally, when observing from thickness direction, low rigid portion divides 3na overlapping with object tape 15.
Thus, as shown in fig. 6, male member 11m, 11m in the fixing band 11,11 when diaper 1 is worn has been engaged in mesh The bonding station of marker tape 15 is in the case that both sides transversely clip the position that low rigid portion divides 3na, is easily based on waistline The contractility of flexure strip 31 and make low rigid portion divide 3na expand.Then, male member 11m passes through this expansion operation transversely somewhat Mobile, positively can be engaged with object tape 15 and with object tape 15 from this male member 11m, this makes in male member 11m Joint and object tape 15 between is more firm.
However, part 3cna dividing 3na corresponding absorbent core 3c with low rigid portion is not limited to above-mentioned space.Namely Say, as long as space has the basic weight (g/m less than the basic weight of part about2), then accordingly can play the effect above, thus Some structural materials of absorbent core 3c can be contained in above-mentioned part 3cna.
Additionally, in the present embodiment, as shown in figure 5, male member 11m of fixing band 11 substantially four side in plan view Shape shape, is included at the position of inner side so in the horizontal along longitudinal side 11ms.On the other hand, due to calf circumference elasticity structure Part 21 is the flexure strip 21 along longitudinally disposed banding, and the outer shape of therefore calf circumference elastic component 21 has along longitudinal Long a pair side 21s2,21s2 and along horizontal a pair of short edges 21s1,21s1.Additionally, a part for waistline flexure strip 31 is located at The relative edge of quadrilateral area A11m21 (point region in Figure 5), this quadrilateral area A11m21 be a pair of short edges 21s1, The minor face 21s1 positioned at dorsal part in the 21s1 and side 11ms of the inner side transversely of male member 11m positioned at fixing band 11, should Quadrilateral area A11m21 be power can from calf circumference elastic component 21 be transferred to fixing band 11 male member 11m bang path.
Thus, even if transmitting the power that male member 11m is pulled to downwards leg-openings HL side from calf circumference elastic component 21 In the case of, this power reduces and is passed to male member 11m by the above-mentioned part of waistline flexure strip 31, thus, it is possible to effectively Suppression fixing band 11 is departed from due to this power.
Additionally, in the present embodiment, as shown in fig. 7, waistline flexure strip 31 includes：Live part 31a, this live part 31a makes waistline opening HB shrink in the transverse direction；And inactive portion 31n, 31n, this inactive portion 31n, 31n do not make in the horizontal Waistline opening HB shrinks.Additionally, inactive portion 31n, 31n respectively be located at waistline flexure strip 31 end 31e1 transversely, 31e1, between the fixing band 11 that inactive portion 31n, 31n is located nearest to respectively in addition and live part 31a.Additionally, invalid portion The naturalness lower aprons that 31n, 31n do not act in external force are divided to be natural length state.
Thus, when transversely stretching fixing band 11, inactive portion 31n relatively easily and quickly extends.Subsequently, based on This elongation and the contractility that produces can act on rapidly fixing band 11 as tensile force transversely.Thus, fixing band 11 Male member 11m can be engaged with object tape 15 with suitable engaging force.
Additionally, in the present embodiment, as shown in figure 8, a pair of fixing band 11,11 be structured to can be with " fixing band Reduplicative formses " engage.Thus, in the case of being engaged with the execution of fixing band reduplicative formses as needed, fixing band 11,11 is permissible Engage in the way of when worn close to the part of the center side transversely of veutro portion 1a, permissible by this fixing band 11,11 It is kept away from the lower limb in M shape of SFD 101.As a result, it is possible to reduce from lower limb apply to fixing band 11 above-mentioned push away Power F (Figure 1B), thus, it is possible to suppressing fixing band 11,11 to peel off and departing from.
Fixing band reduplicative formses will be described, below, first of all for succinct, be located at the dorsal fin 1bsf in left side in fig. 8 Fixing band 11 be referred to as " left side band 11-1 " (corresponding with first band), similarly, dorsal fin 1bsf positioned at right side consolidates Surely band 11 is referred to as " right side band 11-2 " (corresponding with the second band).
Then, as shown in figure 8, the object tape 15 of male member 11m of skin side surface of left side band 11-1 and veutro portion 1a Engage, and male member 11m of the skin side surface of the right side band 11-2 non-skin side table with left side band 11-1 in an overlapping manner Face 11-1s engages.That is, in fixing band reduplicative formses, the non-skin side surface 11-1s of left side band 11-1 (with non- The surface of junction surface side corresponds to) as the female component engaging with male member 11m of right side band 11-2.Thus, in present embodiment In, the non-skin side surface 11-1s of left side band 11-1 is by having for example, 50 (g/m2) more than relatively large basic weight nonwoven Cloth is made, so that connecing between male member 11m of right side band 11-2 and the non-skin side surface 11-1s of left side band 11-1 Making a concerted effort is more than 0.1 (N/10mm).Thus, male member 11m of right side band 11-2 can for engage required engaging force with The non-skin side surface 11-1s with 11-1 for the left side engages, and is achieved in fixing band reduplicative formses.
Here it is preferred that fixing band reduplicative formses are implemented as follows.That is, it is preferable that, in left side band 11-1 Male member 11m and object tape 15 between engaging force (N/10mm) and male member 11m in right side band 11-2 and object tape 15 Between engaging force (N/10mm) be respectively greater than in the non-skin side surface 11-1s of left side band 11-1 and the public structure of right side band 11-2 Engaging force (N/10mm) between part 11m, it is furthermore preferred that left side band 11-1 non-skin side surface 11-1s with overlap Mode engage and the middle position C11-1 in the longitudinal direction of left side band 11-1 and right side band with male member 11m of right side band 11-2 Middle position C11-2 in the longitudinal direction of 11-2 be aligned to consistent with each other in the case of, left side band 11-1 and right side band 11-2 is with the right side The mode that male member 11m of side band 11-2 is extended to the both sides longitudinal direction from the non-skin side surface 11-1s of left side band 11-1 Set.
For example, in this embodiment in fig. 8, left side band 11-1 and right side band 11-2 is identical shape, tool Body ground, the tapering shape narrowing towards tip side transversely for the size in longitudinal direction.Thus, in left side band 11-1 and right side band 11-2 engages and makes the right side non-skin side surface 11-1s with left side band 11-1 in an overlapping manner of male member 11m with 11-2 Engage and middle position C11-1, C11-2 in longitudinal direction be aligned to consistent with each other in the case of, the male member of right side band 11-2 The 11m position P11-2n of the base portion side of right side band 11-2 in the horizontal, from left side, band 11-1 extends to the both sides longitudinal direction.
It is formed into as above so it becomes able to strengthen right side with 11-2 as overall engagement state by structure, and The left side band 11-1 that fixing band reduplicative formses simultaneously can be made is easily separated from from right side band 11-2.Details is as follows.
First, as described above, in the present embodiment, between male member 11m of left side band 11-1 and object tape 15 Engaging force (N/10mm) is set to be greater than in the non-skin side surface 11-1s of left side band 11-1 and the male member of right side band 11-2 Engaging force (N/10mm) between 11m.Thus, in right side band 11-2 with the side of maintaining part 11ap of the top ends of retainer belt 11-2 Formula, in the case of left side band 11-1 disengaging, can be effectively prevented left side band 11-1 and also depart from from object tape 15 together, thus Only right side departs from from left side band 11-1 on stable left side band 11-1 with 11-2.Thus, right side band 11-2 can easily from Left side band 11-1 depart from, result become proper make in more changing babies' napkin fixing band 11-1,11-2 depart from when can not be by big stress Put on SFD 101, this contributes to minimum treat.
Additionally, as described above, in fixing band reduplicative formses, male member 11m of right side band 11-2 is right side band 11-2's The position P11-2n of base portion side transversely, from left side, band 11-1 extends to the both sides longitudinal direction.Additionally, from left side band 11-1 The part extended is engaged with the object tape 15 of veutro portion 1a.Here, the engaging force (N/10mm) being engaged with object tape 15 is more than The engaging force (N/10mm) engaging with the non-skin side surface 11-1s of left side band 11-1.Thus, the male member of right side band 11-2 The engaging force of 11m can increase the partly corresponding amount extended with this.
Incidentally, the Automatic Drawing testing machine (autograph of example as cupping machine is for example used as follows Testing machine) (being manufactured by Shimadzu Seisakusho Ltd.) executing the measurement of this engaging force (N/10mm).Fig. 9 is to illustrate to measure The schematic side elevation of state.
First, the part cutting out the fixing band 11 of diaper 1 has same form to form band base material 11a and public material 11m Rectangle sample 11s (hereinafter referred to as fixing band sample 11s).Additionally, cutting out a part for the object tape 15 of diaper 1 with shape Become the sample 15s (hereinafter referred to as object tape sample 15s) of object tape 15, in this case, the size of object tape sample 15s It is configured to bigger than the size of fixing band sample 11s in this both direction in machine and transverse direction.
Male member 11m of above-mentioned fixing band sample 11s is engaged with the non-skin side surface of object tape sample 15s, by this shape Become measurement sample 11s15s.However, in this joint, fixing band sample 11s is placed to the non-skin of object tape sample 15s On side surface, and carry out aliging so that the horizontal of sample is alignd in parallel with each other, fixing band sample 11s is not from object tape sample The non-skin side surface of 15s extends, afterwards, unshowned weight be 700g roller as peeling direction transversely, with 5 (mm/min) velocity amplitude rolls, and makes the weight of roller itself act on sample 11s and 15s simultaneously.As a result, sample 11s and 15s is in predetermined engagement state.
On the other hand, as shown in figure 9, cupping machine include can be separate in vertical a pair of head 81u, 81d.Specifically, a head 81u is the moving-head 81u that can move up and down along vertical, another head 81d It is arranged to the irremovable fixing head 81d below moving-head 81u.Additionally, fixing head 81d is on the upper surface of which There is flat inclined surface 81ds, surface 81ds tilts 135 ° from vertical.
Measurement sample 11s15s is fixed to inclined surface 81ds.Note, in measurement with the fixation of sample 11s15s, Object tape sample 15s is contacted with inclined surface 81ds surface, thus fixing band sample 11s is positioned on object tape sample 15s Side.Additionally, this configuration makes, and sample 11s, 15s's is laterally parallel with the incline direction of inclined surface 81ds.Additionally, be formed as from The one end of the prominent holding auxiliary piece 83 of size of lower ora terminalis 11sde edge longitudinal (running through the direction of paper in Fig. 9) is fixed Lower ora terminalis 11sde on the incline direction of fixing band sample 11s, holding is with the other end of auxiliary piece 83 by moving-head The handle part 81uc of 81u holds.
Then, moving-head 81u is moved up with the predetermined translational speed value of 300 (mm/min), and solid by being arranged at The unshowned force cell measurement determining head 81d acts on the load value (N) of head 81d, thus makes head 81u and fixation Head 81d is separately.
Additionally, fixing band sample 11s sequentially departs from from object tape sample 15s, in the load value of subsequent measurement, record is worked as Angle, θ reaches load value P135 when 135 degree, and angle, θ is to be applied to fixation from moving-head 81u via holding auxiliary piece 83 Angle between the incline direction of the direction of peeling force Fh with sample 11s and inclined surface 81ds.Then, when fixing band sample Size in the longitudinal direction of 11s is that the load value P135 of record is converted into during 10mm the load value quilt after load value, and this conversion Obtain as above-mentioned engaging force (N/10mm).For example, when the size in the longitudinal direction of fixing band sample 11s is 20mm, on making The load value P135 stating record is obtained, divided by 20mm, value (=(P135/20mm) × 10mm) work that value is multiplied with 10mm and obtains For above-mentioned engaging force (N/10mm).
Note, clearly, engaging force in the case of fixing band reduplicative formses, namely in the non-flesh of left side band 11-1 The measurement of the engaging force (N/10mm) between male member 11m of skin side surface 11-1s and right side band 11-2 can also be with above-mentioned feelings Condition similarly executes, thus will omit descriptions thereof.
Incidentally, described above is and the under-weight in below 3000g for the body weight is dedicated as according to the diaper 1 of present embodiment Diaper for baby it is contemplated that diaper 1 can efficiently solve and the problems referred to above positioning posture and minimum treat is associated, this Diaper 1 in embodiment is also easily becoming positioning posture and situation about needing in addition further to minimum treat further Under be effective.Additionally, the situation that this situation reduces further for infant weight.
Thus it is preferred that, the diaper 1 of present embodiment is used for weight and is less than 2500g and is more than or equal to the low of 1500g Birth weight infant, it is highly preferred that being less than 1500g and the very LBWI more than or equal to 1000g for weight, Even more preferably, it is less than the ULBW baby of 1000g for body weight.
Further, since be dedicated as the diaper of SFD according to the diaper 1 of present embodiment, therefore this diaper 1 shape Become less than the existing diaper 1 of neonate.For example, wearing with the waistline opening HB of the product length with 365mm and 304mm The diaper the neonate of perimeter L HB under state is compared, and the product that the diaper 1 of present embodiment has 210 to 330mm is long Perimeter L HB under wearing effect for the waistline opening HB of degree L1 (Fig. 2) and 160 to 295mm.
Note, product length L1 is full-size L1 in the longitudinal direction under above-mentioned deployed condition.Additionally, in fixing band 11-1,11-2 are in above-mentioned perimeter L HB measuring waistline opening HB under the engagement state of fixing band reduplicative formses.
First, as shown in figure 8, male member 11m of left side band 11-1 is engaged with the object tape 15 of veutro portion 1a, afterwards, right Male member 11m of side band 11-2 is engaged with the non-skin side surface 11-1s of left side band 11-1, now, carries 11-1,11-2 at these Longitudinal direction on middle position C11-1, C11-2 be in alignment with each other in the state of, carry out alignment make right side the top 11- with 11-2 2e is consistent with the end 11me of the base portion side of male member 11m of left side band 11-1.Thus, produce the joint shape of fixing band reduplicative formses State.
Subsequently, based on this joint shape morphogenetic waistline opening HB elongation, until being disappeared based on the contraction of waistline flexure strip 31 Lose.Subsequently, under this elongation state, perimeter L HB of measurement waistline opening HB, it is derived from perimeter L HB.
Incidentally, perimeter L HB of the product length L1 of LBWI and waistline opening HB is respectively 310mm And 273.5mm, very perimeter L HB of the product length L1 of LBWI and waistline opening HB be respectively 270mm and 220mm, additionally, perimeter L HB of ULBW product length L1 for baby and waistline opening HB be respectively 230mm and 219mm.
===other embodiment===
It is described above according to the embodiment of the present invention, embodiment of above readily appreciates the present invention, and be not used in Limit the understanding of the present invention.Additionally, needless to say more, without departing from the spirit of the invention, the present invention can change and Modification, the present invention includes its equivalent.For example, modification as described below is possible.
In the above-described embodiment, it is illustrated as calf circumference elastic component 21 along the strip-like resilient piece 21 of longitudinal straight line, The shape of strip-like resilient piece 21 is not limited to above-mentioned.For example, this piece can have and go to the inner side in longitudinal direction with from back end And the curved shape to medial displacement transversely.
In the above-described embodiment, elastica is illustrated as waistline flexure strip 31, but this not limited to this.That is, As long as this piece 31 itself has elasticity, this piece 31 can be in addition to the flat member beyond elastica, and can be for example to stretch Property non-woven fabrics (include the elastomeric fibre of such as polyurethane fiber and there is based on the elasticity of its own nonwoven of retractility Cloth)
The explanation of reference
1 disposable diaper
1a veutro portion, 1asf side flap,
1b drosal part, 1bsf side flap (end),
1m crotch, 1mf lower limb fin,
2 positive dough sheets, 2e end,
3 absorbers,
3na low rigid portion divide (veutro low rigid portion is divided),
3nb low rigid portion divide (dorsal part low rigid portion is divided),
3c absorbent core, 3cna space, 3cnb space,
3rs core wrap sheet,
4 leakage prevention sheets,
6 three-dimensional rivel pieces, 6g solid rivel portion (leakage preventing wall), 6r rubber covered wire,
11 fixing bands,
11a band base material, 11ap ledge (maintaining part),
11m male member (junction surface), 11me end, 11ms side,
On the left of 11-1 band (first band), 11-1s non-skin side surface,
Band (second band) on the right side of 11-2,11-2e top,
Ora terminalis under 11s fixing band sample, 11sde, 11s15s sample,
15 object tapes, 15s object tape sample,
21 calf circumference elastic components, 21e1 back end, 21e2 end,
The long side of 21s1 minor face, 21s2,
31 waistline flexure strips, 31e1 end 31e1e outer end,
31a live part, 31n inactive portion,
81u moving-head, 81uc handle part, 81d fixing head, 81ds inclined surface
83 holding auxiliary pieces,
101 SFDs,
HB waistline opening, HL leg-openings,
P6g fixed position,
A11m21 quadrilateral area,
C11m middle position, C11-1 middle position, C11-2 middle position,
P11-2n base portion side position, LNC11m line segment,
G gap, F lifting force Fh peeling force

Claims (8)

1. the flat type disposable diaper of the SFD in below 3000g for a kind of body weight, described diaper includes：Veutro Portion, described veutro portion described SFD veutro along landscape configuration；Crotch, described crotch is configured at described under-weight The crotch of baby；And drosal part, described drosal part described SFD dorsal part along landscape configuration, described veutro Portion, described crotch and described drosal part with the longitudinal direction of described quadrature transverse on arrange, described drosal part have described in transversely Each end, described each end is configured to junction surface and described veutro via the fixing band being respectively arranged at described each end Portion engages, and to form a waistline opening and a pair of leg circumference opening, described diaper includes：
Calf circumference elastic component, described calf circumference elastic component both sides transversely described in described crotch position along institute State longitudinally disposed, described calf circumference elastic component is constructed such that described leg-openings along described longitudinal contraction；And
Waistline flexure strip, described waistline flexure strip be set to extend in described drosal part described in both sides transversely, described waist Enclose flexure strip and be constructed such that described waistline opening along described cross-direction shrinkage, wherein,
Under described diaper unfolded state,
In the cross direction, each end transversely of described waistline flexure strip is located at and immediate described calf circumference elasticity respectively The position identical position of the end of the dorsal part in the longitudinal direction of component or the lateral outer side of the end positioned at described dorsal part；And In described longitudinal direction, described waistline flexure strip is configured to along in the described longitudinal direction at the described junction surface longitudinally across described fixing band Middle position.
2. the flat type disposable diaper of the SFD in below 3000g for the body weight according to claim 1, it is special Levy and be,
The described end of described waistline flexure strip is described outer end transversely in described end and is connected to immediate Described fixing band.
3. the flat type disposable diaper of the SFD in below 3000g for the body weight according to claim 1 and 2, It is characterized in that,
With described longitudinal direction and described laterally all orthogonal direction along the described diaper being in deployed condition thickness direction,
Described diaper includes：Described veutro portion, described crotch and described drosal part along described longitudinal extension absorber；With And the non-skin side from described thickness direction covers the leakage prevention sheet of described absorber, and
When observing from described thickness direction, described waistline flexure strip is overlapping with described absorber and described leakage prevention sheet, institute State waistline flexure strip described each end transversely be located at described in described absorber and described leakage prevention sheet transversely The position identical position of ora terminalis or be located at described ora terminalis lateral outer side.
4. the deploying type of the SFD in below 3000g for the body weight according to any one of claim 1 to 3 is once Property diaper it is characterised in that
Described absorber includes dorsal part low rigid portion corresponding with the position of described drosal part and divides, and described dorsal part low rigid portion divides tool There is the rigidity lower than the rigidity of peripheral part, and
When observing from described thickness direction, described dorsal part low rigid portion is divided overlapping with described waistline flexure strip.
5. the deploying type of the SFD in below 3000g for the body weight according to any one of claim 1 to 4 is once Property diaper it is characterised in that
Described veutro portion includes being configured to each of junction surface of described fixing band of each end with described drosal part The target area engaging,
Described absorber includes veutro low rigid portion corresponding with the position of described veutro portion and divides, and described veutro low rigid portion divides tool There is the rigidity lower than the rigidity of peripheral part, and
When observing from described thickness direction, described veutro low rigid portion is divided overlapping with described target area.
6. the deploying type of the SFD in below 3000g for the body weight according to any one of claim 1 to 5 is once Property diaper it is characterised in that
The junction surface of described fixing band has following shape：This shape has the side positioned at described inner side transversely,
Described calf circumference elastic component is that have along described long a pair longitudinal side and the band along described horizontal a pair of short edges The flexure strip of shape, and
A part for described waistline flexure strip is located in quadrilateral area, using the minor face positioned at dorsal part in the pair of minor face Mark off described quadrilateral area with the side of the inner side transversely at the junction surface positioned at described fixing band, described minor face and described Side is relative edge.
7. the deploying type of the SFD in below 3000g for the body weight according to any one of claim 1 to 6 is once Property diaper it is characterised in that
Described waistline flexure strip includes：Live part, described live part be constructed such that described waistline opening along described laterally Shrink；And inactive portion, described inactive portion is configured to not make described waistline opening along described cross-direction shrinkage, and
Described inactive portion is located at described each end transversely of described waistline flexure strip and is located at described fixing band and described Between live part.
8. the deploying type of the SFD in below 3000g for the body weight according to any one of claim 1 to 7 is once Property diaper it is characterised in that
The fixing band of the one end in described each end be first band, the other end fixing band be second band, described first The junction surface of band is engaged with described veutro portion and the junction surface of described second band is connect with the non-of described first band in an overlapping manner In the case that the surface of conjunction portion side engages, between the junction surface of described second band and the surface of disengaged portion side of described first band Engaging force be more than 0.1N/10mm, between the junction surface of described first band and described veutro portion in units of N/10mm The engaging force in units of N/10mm between the junction surface of engaging force and described second band and described veutro portion is set respectively Determine between the surface of disengaged portion side more than described first band and the junction surface of described second band in units of N/10mm Engaging force, and
Engage and described with the surface of the disengaged portion side of described first band in an overlapping manner at the junction surface of the described second band Middle position in the described longitudinal direction of middle position in the described longitudinal direction of first band and described second band is aligned to each other one In the case of cause, described first band and described second band are set as follows：The junction surface of described second band is from described the One band extends out to the both sides in described longitudinal direction.
CN201580026920.3A 2014-05-27 2015-03-10 Flat type disposable diaper of the weight in 3000g low weight baby below Expired - Fee Related CN106456389B (en)

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JP2014-108926 2014-05-27
PCT/JP2015/056901 WO2015182210A1 (en) 2014-05-27 2015-03-10 Unfolding-type disposable diaper for infants weighing 3000 grams or less at birth

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AU2015265241B2 (en) 2018-11-22
AU2015265241A1 (en) 2016-09-29
TW201607515A (en) 2016-03-01
WO2015182210A1 (en) 2015-12-03
MY179319A (en) 2020-11-04
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BR112016024564A2 (en) 2017-08-15
TWI650108B (en) 2019-02-11

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