JP2006230839A - Fastener member of paper diaper and its manufacturing method and paper diaper using same method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain expansion axes for at least two directions by locating the elastic member, to suitably cope with not only a straight fastening but also cross fastening, and to obtain inexpensive and effective fastener member by allowing the elastic member to be located continuously in a manufacturing line. <P>SOLUTION: The fastener sheets 5 are provided on both sides of the back of the paper diaper and they are used to put the diaper to a body by fastening the diaper placed on a body at the ventral surface. The fastener sheet 5 comprises layered nonwoven fabric sheets 11 and 12, elastic members 10, 10 which are laid between the nonwoven fabric sheet 11 and 12 and arranged in a curved line having at least a reversed part and a hook-and-loop fastener 9 provided inner side of the nonwoven fabric sheet 11 and 12. The elastic members 10, 10 provide extension axes K<SB>1</SB>and K<SB>2</SB>in two directions. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention provides a fastener member for attaching a paper diaper to the body by attaching the paper diaper to the body in a state where the paper diaper is applied to the body, and a method for manufacturing the same, as well as a fastener member provided on both sides of the back side of the paper diaper. It relates to the disposable paper diaper used.

  In an adult tape-type diaper mainly provided on the market, an absorbent body 52 is interposed between a liquid-impervious back sheet 50 and a liquid-permeable top sheet 51 as shown in FIG. A pair of upper and lower fastener tapes 53A and 53B are attached to both sides of the back side of the disposable diaper so as to protrude from the side, and the pair of fastener tapes 53 and 53 are fixed to the target sheet 54 on the ventral side surface to fix the body. (For example, refer to the prior arts in Patent Documents 1 and 2 below). In addition, in this publication, in order to improve the fit around the legs, it is described that the lower-side fastener tape 53B is inclined and attached to the waistline side. It is also described that the adhesive tape is made of a stretchable material. In addition, as a sticking means of the said fastener tapes 53A and 53B, an adhesive joining means or a mechanical joining means (surface fastener) etc. are used.

Further, in recent years, as shown in FIG. 16, in order to improve the appearance design and solve the problems such as the tip corners damaging the skin, instead of the above-described thin belt-like fastener tape 53. Joining pieces 55a and 55a extending from the outer edge of one sheet and projecting sideways in two upper and lower stages are formed, and an adhesive layer or a hook-and-loop fastener 56 is provided on the inner surface side of the joining pieces 55a and 55a. Such a fastener sheet 55 is also known.
As the fastener tapes 53A and 53B, a plastic film or a nonwoven fabric is mainly used, and as the fastener sheet 55, a nonwoven fabric is used, but it has good adhesion to the body and can follow the movement of the body. In order to achieve this, stretching has also been performed (Patent Documents 3 to 5 below).

  Furthermore, in the following Patent Document 6, in order to attach the waistline and the leg circumference in close contact with the body, the fastening tape is composed of a first tape portion and a second tape portion having elasticity, and the first The tape extends from the side edge portion of the back side in parallel around the trunk, and the second tape extends so as to incline toward the trunk circumference, and the leading end of the second tape extends to the leading end of the first tape. The structure of the fastening tape which fixed and provided the fastening member in the front-end | tip part is disclosed.

By the way, in the case of the adult tape type paper diaper shown in FIGS. 15 and 16, the wearer puts the upper and lower fastening tapes 53A, 53B (55a, 55a) on the target sheet 54 in a substantially parallel state depending on the body shape. It is attached (hereinafter referred to as straight fastening), or the upper and lower two-stage fastening tapes 53A, 53B (55a, 55a) are attached to the target sheet 54 while crossing each other (hereinafter referred to as cross fastening). Called). The former wearing method is mainly found in people with a standard body type to a fat body type, and the latter wearing method is mainly found in people with a thin body type.
Japanese Utility Model Publication No. 6-31726 JP 2002-95793 A Japanese Utility Model Publication No. 57-157209 JP-A-62-81474 JP-A-62-81477 JP 2003-153951 A

  Particularly in the case of adult paper diapers, there are problems such as a large personal difference in body shape, and a fastener tape that does not have stretchability cannot be completely fitted to the body. In view of such problems, attempts have been made to use an elastic member provided on the fastener tape to provide elasticity or to use a material having elasticity. However, when an elastic member is disposed on the fastener tape by a conventional method to provide elasticity, the elasticity can be imparted only in one direction of the member longitudinal direction. Therefore, it cannot cope with the cross stopper in which the fastening tape is pulled in a direction different from the protruding direction.

In addition, when using a material having elasticity freely, it is possible to give elasticity in all directions, and it is possible to easily cope with the cross stopper, but the material itself is expensive and the product cost is low. There was a problem such as causing bulkiness.
Therefore, the main problem of the present invention is that the elastic member can provide two or more expansion / contraction axes, and can be suitably used for crossing as well as straight fastening, and the elastic member is continuously arranged on the production line. It is to obtain a fastener member inexpensively and efficiently.

In order to solve the above-mentioned problem, the present invention according to claim 1 is provided on both sides of the back side of the paper diaper, and the paper diaper is attached to the body by being attached to the abdominal surface in a state where the paper diaper is applied to the body. A fastener member for
The fastener member is a laminated nonwoven fabric sheet, an elastic member that is interposed between the nonwoven fabric sheets and has a curved shape having at least an inversion portion, and an adhesive bonding means provided on the inner surface side of the nonwoven fabric sheet Or the fastener member for paper diapers characterized by consisting of a mechanical joining means is provided.

  In the invention of claim 1, the fastener member is a laminated nonwoven fabric sheet, an elastic member interposed between the nonwoven fabric sheets and having at least a reversal portion, and an inner surface of the nonwoven fabric sheet The adhesive bonding means or the mechanical bonding means provided on the side is used. Since the elastic member is arranged in a curved shape having at least an inversion portion, the elastic member can have at least two extending and contracting axes, and can suitably cope with not only a straight stop but also a cross stop. Further, the elastic member can be continuously arranged in a wavy curved arrangement while being swung between continuous nonwoven fabric sheets by a traverse device to be described later, and a fastener member can be obtained inexpensively and efficiently. .

According to a second aspect of the present invention, the fastener member has one or a plurality of joining piece portions projecting sideways, and an attachment portion to a paper diaper, and the elastic member is a horizontal U-shape that is inverted on the tip side. The fastener member for disposable diapers according to claim 1, which is arranged in a curved shape.
According to the second aspect of the present invention, the elastic member is arranged in a horizontal U-shaped curved shape that is inverted on the tip side. Among the curved arrangement modes of the elastic member, the most basic mode is shown. Among the elastic members arranged in a curved shape in the horizontal U shape, the upper arrangement portion and the lower arrangement portion constitute the telescopic shaft, respectively.

  As the present invention according to claim 3, the fastener member includes one or a plurality of joining piece portions protruding sideways and an attachment portion to a paper diaper, and the elastic member has two reversing portions on the tip side. The fastener member for disposable diapers according to claim 1, which is arranged in a curved shape having a horizontal W shape.

  The invention described in claim 3 is an arrangement mode in which the elastic member is arranged in a horizontal W-shaped curved shape having two reversing portions on the distal end side and it is desired to further increase the stretching force.

  According to a fourth aspect of the present invention, the fastener member includes one or a plurality of joining piece portions projecting sideways and an attachment portion to a paper diaper, and the elastic member is reversed in a U-shape that is reversed on the tip side. 2. An approximately X-shaped curved shape is arranged by a combination of an elastic member arranged in a curved shape of the above and an elastic member arranged in a horizontal U-shaped curved shape that is inverted on the base end side. A fastener member for a paper diaper is provided.

  The invention according to claim 4 is an elastic member arranged in a horizontal U-shaped curved shape that inverts the elastic member on the distal end side, and an elastic member arranged in a horizontal U-shaped curved shape reversed on the proximal end side. They are arranged in a substantially X-shaped curved shape by combination with members. Since the two telescopic axes intersect and cross each other, it is possible to adapt to various stretching directions. When attaching a diaper, not only the straight stop that fastens the fastener sheet straight, but also the cross stop that crosses and fastens the fastener sheet, it can also respond suitably, even from the state of being fastened due to the variety of expansion and contraction directions It becomes difficult to come off.

  According to a fifth aspect of the present invention, there is provided the fastener member for a disposable diaper according to any one of the first to fourth aspects, wherein the elastic member cuts a curved portion oriented in the width direction of the fastener member and makes it discontinuous. The

  The invention according to claim 5 cuts a curved portion of the elastic member that is oriented in the width direction of the fastener member to make it discontinuous. It is possible to prevent the fastener sheet from shrinking due to the discontinuity of the elastic member.

  According to a sixth aspect of the present invention, in the elastic member, by controlling an inflection position, a width direction interval of each elastic member is adjusted in a curved portion oriented in a substantially protruding direction of the joining piece portion. A fastener member for a paper diaper according to any one of claims 1 to 5 is provided.

  In the invention described in claim 6, by controlling the inflection position, the interval in the width direction of each elastic member is adjusted in the curved portion oriented in the substantially protruding direction of the joining piece portion among the elastic members. It is. It is possible to prevent the stretching force from concentrating on the line and to achieve dispersion.

  A manufacturing method for obtaining the fastener member for a paper diaper according to any one of claims 1 to 6 as the present invention according to claim 7, comprising: a continuous sheet-like upper layer nonwoven fabric; and a continuous sheet-like lower layer nonwoven fabric. In the process of laminating, after arranging elastic members between these nonwoven fabrics in a wavy curved shape, and continuously arranging tape-like adhesive joining means or mechanical joining means on one side of the laminated nonwoven fabric sheet, A method for manufacturing a fastener member is provided, wherein the adhesive bonding means or the mechanical bonding means are alternately traversed and cut at a position in accordance with the curved phase of the elastic member.

  The invention described in claim 7 shows a procedure in the case where the present fastener member is continuously manufactured on the production line, and the fastener member can be manufactured inexpensively and efficiently by this method. .

The present invention according to claim 8 is a state in which an absorbent body is interposed between the liquid-permeable top sheet and the back sheet, and is provided so as to protrude laterally on both sides of the back side, and a paper diaper is applied to the body. In a disposable paper diaper with a fastener member for attaching the paper diaper to the body by fastening to the ventral surface with
The fastener member is a laminated nonwoven fabric sheet, an elastic member that is interposed between the nonwoven fabric sheets and has a curved shape having at least an inversion portion, and an adhesive bonding means provided on the inner surface side of the nonwoven fabric sheet Alternatively, a disposable paper diaper characterized in that it comprises mechanical fastener means is provided.

As this invention which concerns on Claim 9, while an absorber is interposed between a liquid-permeable surface sheet and a back surface sheet, while the side flap part which the said absorber does not exist in both sides is formed, this side flap part Leg elastics forming leg gathers are arranged on the back side, protruding sideways on both sides of the back, and attached to the body by attaching the paper diaper to the body with the paper diaper attached to the body In disposable paper diapers with fastener members for
The fastener member is a laminated nonwoven fabric sheet, an elastic member that is interposed between the nonwoven fabric sheets and has a curved shape having at least an inversion portion, and an adhesive bonding means provided on the inner surface side of the nonwoven fabric sheet Alternatively, there is provided a disposable paper diaper comprising mechanical fastener means and arranged so that one end of the elastic member overlaps the leg elastic member.

  As described above in detail, according to the present invention, the expansion and contraction shafts in two or more directions can be obtained by the arrangement of the elastic member, and it is possible to suitably cope with not only the straight stop but also the cross stop, and the arrangement of the elastic member is in the production line. Thus, the fastener member can be obtained inexpensively and efficiently.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a partially broken development view of a disposable diaper according to the present invention.
[Structure of disposable diapers]
In FIG. 1, a paper diaper is made of cotton pulp or the like, for example, rectangular or hourglass-shaped rigidity between a liquid-impermeable back sheet 1 made of polyethylene or the like and a liquid-permeable top sheet 2 made of nonwoven fabric or the like. Is interposed. The absorber 3 can be wrapped with crepe paper (not shown) to maintain its shape. As the liquid-impermeable back sheet 1, those having moisture permeability have been used in recent years from the viewpoint of preventing stuffiness. This water and moisture permeable sheet is a microporous sheet obtained by, for example, melt-kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene to form a sheet, and then stretching in a uniaxial or biaxial direction. is there.

As the liquid-permeable top sheet 2, a perforated or non-porous nonwoven fabric or a perforated plastic sheet is used. As the raw material fibers constituting the nonwoven fabric, synthetic fibers such as olefins such as polyethylene or polypropylene, polyesters and polyamides, recycled fibers such as rayon and cupra, and natural fibers such as cotton can be used.
The liquid-impervious backsheet 1 extends outward from the periphery of the absorbent body 3 to form a substantially hourglass shape, and the laterally extended portion of the absorbent body and the side portion of the barrier sheet 4 The side flap part SF which does not exist is comprised. The liquid-permeable top sheet 2 has an hourglass shape that is slightly larger than the absorbent body 3, and a portion that extends slightly outward from the side edge of the absorbent body 3 is formed between the barrier sheet 4 and the liquid-impermeable back sheet 1. It is interposed between them and fixed to the liquid-impermeable back sheet 1 side by a hot melt adhesive. As the material for forming the barrier sheet 4, a plastic sheet or a melt blown nonwoven fabric can be used, but from the viewpoint of touch to the skin, a nonwoven fabric that is water-repellent treated with silicon or the like is preferably used.

  On the other hand, both end portions in the longitudinal direction of the paper diaper, that is, the ventral side and the back side, the liquid-impervious backsheet 1 and the liquid-permeable topsheet 2 extend together to form an end flap portion EF in which the absorbent body 3 does not exist. Among the end flap portions EF on the back side, a plurality of, in the illustrated example, three thread-like elastic elastic members 7 are arranged along the width direction. As the thread-like elastic elastic member 7, materials such as styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicon, polyester, and the like that are usually used can be used.

  Further, fastener sheets 5 and 5 are attached to both end portions of the back end flap portion EF so as to protrude sideways, and a front target tape 6 is adhered to the stomach side surface of the paper diaper along the width direction. A paper diaper is attached to the body by fastening the joining piece 8a of the fastener sheet 5 to the front target tape 6.

[Structure of fastener sheet 5]
As shown in detail in FIG. 2, the fastener sheet 5 is disposed in a curved shape having at least a reversal portion while being interposed between the laminated nonwoven fabric sheets 11 and 12 and the nonwoven fabric sheets 11 and 12. The plurality of elastic members 10, 10... In the illustrated example, and mechanical joining means 9 (hereinafter, male side fastener) provided on the inner surface side of the nonwoven fabric sheets 11, 12, The side fastener 9 can be joined to the front target tape 6 constituting the female side fastener. The mechanical joining means 9 may be the female side, and the front target tape 6 side may be the male side. As the nonwoven fabric sheets 11 and 12, it is desirable to use a nonwoven fabric having a basis weight of 40 to 80 g / m ² and a spunbond nonwoven fabric having excellent strength characteristics.

The fastener sheet 5 has upper and lower two-stage joint piece portions 8a and 8a protruding sideways, and an attachment portion 8b to a paper diaper. At least in each of the joint piece portions 8a and 8a, the elastic member 10, 10 ... are arranged in a horizontal U-shaped curved shape that is inverted at the tip side of the joining piece 8a. The elastic members 10, 10... Arranged in the joining piece 8 a are directions in which the upper arrangement portion and the lower arrangement portion that form a horizontal U-shaped curved shape intersect the member longitudinal direction of the protruding piece portion 8 a. Have two telescopic axes K ₁ and K ₂ .
In order to manufacture the fastener sheet 5, as shown in FIG. 4, a continuous sheet-like upper layer nonwoven fabric 12 is supplied on the upper side of the nip rollers 14 and 14, and a continuous sheet-like lower layer nonwoven fabric 11 is placed on the lower side. In the process of laminating these two nonwoven fabrics 11 and 12, the elastic members 10, 10... Are arranged in a wavy curved shape by a known traverse device 16 between these nonwoven fabrics. The traverse device 16 has a holding portion for the elastic members 10, 10... At the tip portion, and the elastic member is made to advance and retract in the width direction of the continuous web (nonwoven fabric sheets 11, 12) at a calculated speed. 10, 10... Are arranged in a predetermined wavy curve. Reference numerals 17 and 18 are hot melt adhesive applicators.

  After obtaining the continuous laminated nonwoven fabric sheet 5A in which the elastic members 10, 10... Are arranged in a wavy curved shape, the tape-shaped male side surface fastener 9 is continuously arranged on one surface of the laminated nonwoven fabric sheet. By doing so, the continuous fastener sheet 5 is obtained. Thereafter, as shown in FIG. 3, the male side fasteners 9 are alternately traversed, cut along a zigzag cutting line 19 in accordance with the curved phase of the elastic members 10, 10. The continuous laminated nonwoven fabric sheet 5A is cut at the longitudinal positions 13, 13... With 8a, 8a as a set, and the single fastener sheet 5 shown in FIG.

Incidentally, in the elastic member 10, 10 ... is the above example, is arranged as a curve continuous fastener sheet within 5, the elastic stretching force required is telescopic shaft K ₁ a joint piece 8a of the fastener sheet 5 , K ₂ , generally extending in the protruding direction, and the expansion / contraction force acting in the width direction of the sheet (the vertical direction of the diaper) causes the sheet to be contracted into an irregular shape, and is shown in FIG. As described above, it is desirable that the curved portion (chain line encircled regions S _{1 to} S ₅ ) oriented in the width direction of the fastener sheet 5 is finely cut to be discontinuous. The cutting methods described in JP 2002-35029 A, JP 2002-178428 A, and JP 2002-273808 A are preferably employed for cutting the elastic members 10, 10. The The elastic stretchable member cutting method described in the publication basically includes an embossed heat roll 20 in which a plurality of convex portions are arranged on the surface after the continuous laminated nonwoven fabric sheet 5A is manufactured as shown in FIG. And the continuous laminated nonwoven fabric sheet 5A is allowed to pass between the embossed heat roll 20 and the opposing roll 21, and the elastic members 10, 10... And it cut | disconnects finely by at least one of the pressurization between the opposing rolls 21, and a heating.

[Second embodiment]
The curved arrangement shape of the elastic members 10 can be an arbitrary curved shape under the control of the traverse device 16. Therefore, as shown in FIG. 6, the elastic members 10, 10,... Can be arranged in a horizontal W-shaped curved shape having two reversing portions on the distal end side mainly in the joining piece portion 8a. It is. In the drawing, chain line surrounding regions S _{1 to} S ₉ are broken regions of the elastic member 10. In this case, the elastic member bundle 10A to 10D has a stretching force in the protruding direction of the joining piece 8a, and a double stretching force is obtained as compared with the fastener sheet 5 shown in FIG. Is possible.

[Third embodiment]
Also, as shown in FIG. 7, mainly in the joint piece portion 8a, the elastic member 10 is a plurality of elastic members 22A arranged in a horizontal U-shaped curved shape that reverses on the tip side of the joint piece 8a, In an example in which the elastic member 22 is arranged in a substantially X-shaped curved shape by a combination with a plurality of elastic members 22B arranged in a curved shape of a horizontal U-shape that is inverted on the proximal end side of the joining piece 8a. is there. In manufacturing, two sets of traverse devices are used by applying the manufacturing method shown in FIG. 4, and a bundle of elastic members 22A as a set is swung by the traverse device 16 on one side, and a set of elastic members 22B is set. Can be arranged in a substantially X-shaped curved shape by oscillating the bundle with the traverse device 16 on the other side. In the drawing, chain line surrounding regions S _{1 to} S ₃ are broken regions of the elastic member 22A. In the case of this third embodiment, since the expansion / contraction axes K ₁ and K ₂ are X-shaped in the joining piece 8a, it is possible to adapt to various expansion / contraction directions. In addition to the straight fastening to be applied, it is possible to suitably cope with the cross fastening to cross and fasten the fastener sheet 5, and it is difficult to come off from the state of being fastened due to the diversity of the expansion and contraction directions.

[Fourth embodiment]
In the present fastener sheet 5, the elastic members 10, 10... Are arranged in a continuous curve. Therefore, by utilizing this characteristic, it is possible to improve the leg fit by combining the leg gathers 23 provided on the side flap SF of the paper diaper and the elastic members 10, 10. Specifically, as shown in FIG. 8, under the condition that the leg elastic members 23, 23,... The continuity of the elastic members 10, 23... Is secured by attaching the lower end portions of the elastic members 10, 10. More fit can be obtained.

[Fifth embodiment]
Moreover, as FIG. 9 shows, fastener sheet | seat 5 'shows the aspect which has one joining piece part 8a. This fastener sheet 5 ′ is obtained by setting the cutting position 13 of the continuous laminated nonwoven fabric sheet 5A shown in FIG. 3 for each joining piece 8a. In this case, as shown in FIG. 9, the fastener sheet 5 'may be arranged in two upper and lower stages, or in some cases, as shown in FIG. Also good.

[Other Curve Arrangements of Elastic Member 10]
In any of the above-described embodiments, as shown in FIG. 11 (A), the swing control points of the elastic members 10, 10... Are controlled by swinging along a straight line along the width direction of the continuous laminated nonwoven fabric sheet 5A. Although it becomes a locus line, as shown in FIG. 11 (B), when swing control is performed by arranging the swing control points on a straight line inclined with respect to the width direction line of the continuous laminated nonwoven fabric sheet 5A, for the side of the telescopic shaft _K 1 _{(K 2)} can be set larger the elastic members 10, 10 ... distance, telescopic shaft _K 2 on the other side _{(K 1)} reduce the respective elastic members 10, 10 ... interval for It becomes possible to set. Furthermore, when the elastic member holding points of the traverse device 16 are arranged in the line direction of the continuous laminated nonwoven fabric sheet 5A as shown in FIG. 12 (B), the elastic member 10 is shown in FIG. 12 (A). , at 10 ... telescopic shaft K _1, curve line portion along the K ₂ of, it is possible to have a predetermined interval in each of the elastic members 10, 10 ... between.

As described in detail above, the fastener sheet 5 has the two expansion / contraction axes K ₁ and K ₂ in the direction intersecting the member longitudinal direction of the projecting piece 8a, and has diversity in the expansion / contraction direction. Therefore, as shown in FIG. 13, in the case of “straight fastening” in which the joining piece portions 8 a and 8 a of the fastener sheet 5 are straightly fastened, the joining piece portions 8 a and 8 a are arranged in the horizontal direction (extension shaft K ₁ , it can be attached stopped in a state of being extended to K ₂ synthesis directions). Further, as shown in FIG. 14, each joint piece 8 a, 8 a is pulled in the inclined direction as in the case of “cross stop” in which the joint pieces 8 a, 8 a of the fastener sheet 5 are crossed and fastened. Even when it is fastened, it can be firmly fastened because the stretchable axes K ₁ , K ₂ are stretched in an oblique direction.

[Other examples]
(1) In the above embodiment, the joining piece 8a and the front target tape 6 are joined to each other by a surface fastener as a mechanical fastener means, but the joining piece 8a is indirectly attached to the joining piece 8a directly or through a sheet. Alternatively, an adhesive layer may be provided so that the front target tape 6 can be releasably adhered.

It is a partial fracture development view of the disposable paper diaper concerning the present invention. The fastening sheet 5 of a paper diaper is shown, (A) is a front view, and (B) is a BB line arrow view. It is a top view of 5 A of continuous lamination nonwoven fabric sheets in order to obtain the fastening sheet 5. FIG. (A) is a schematic diagram, (B) is a principal part top view which shows the manufacture point of 5 A of continuous laminated nonwoven fabric sheets. It is a front view at the time of making a part of elastic member 10,10 ... in the fastening sheet 5 discontinuous. It is a front view of the fastener sheet 5 which concerns on a 2nd form example. It is a front view of the fastener sheet 5 which concerns on a 3rd form example. It is a principal part expanded view of the paper diaper by the attachment position change of the fastener sheet | seat 5 based on a 4th form example. It is a principal part expanded view which shows the attachment state of the fastener sheet 5 which concerns on a 5th example (the 1). It is a principal part expanded view which shows the attachment state of the fastener sheet 5 which concerns on a 5th example (the 2). (A) (B) is a figure which shows the curve arrangement | positioning aspect of the elastic member 10. FIG. It is a figure which shows the curve arrangement | positioning aspect of the other elastic member. It is a figure which shows the mounting state of the paper diaper by the normal stopping method. It is a figure which shows the mounting state of the paper diaper by a cross stop. It is a partial fracture development view of the conventional tape type paper diaper. It is an expanded view which shows the example of the conventional fastening sheet | seat 55. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Liquid impervious back sheet, 2 ... Liquid permeable top sheet, 3 ... Absorber, 4 ... Barrier sheet, 5 * 5 '... Fastening sheet, 5A ... Continuous laminated nonwoven fabric sheet, 6 ... Front target tape, 7 ... threadlike resilient and elastic members, 8a ...... joining piece (joining pieces), 8b ... attaching portion, 9 ... surface fastener, 10, 22A, 22B ... elastic member, 11, 12 ... nonwoven sheet, _{K 1} · K 2 _... telescopic shaft

Claims (9)

A fastener member for attaching the paper diaper to the body by being fixed to the abdominal surface with the paper diaper applied to the body while being provided on both sides of the back side of the paper diaper,
The fastener member is a laminated nonwoven fabric sheet, an elastic member that is interposed between the nonwoven fabric sheets and has a curved shape having at least an inversion portion, and an adhesive bonding means provided on the inner surface side of the nonwoven fabric sheet Or the fastener member for paper diapers characterized by comprising a mechanical joining means.   The fastener member has one or a plurality of joining piece portions protruding sideways and an attachment portion to a paper diaper, and the elastic member is arranged in a horizontal U-shaped curved shape that is inverted at the tip side. The fastener member for paper diapers according to claim 1.   The fastener member is composed of one or a plurality of joining piece portions projecting sideways and an attachment portion to a paper diaper, and the elastic member has a horizontal W-shaped curved shape having two inverted portions on the distal end side. The fastener member for a paper diaper according to claim 1, wherein the fastener member is disposed.   The fastener member is composed of one or a plurality of joining piece portions projecting sideways and an attachment portion to a paper diaper, and the elastic member is arranged in a horizontal U-shaped curved shape that is inverted at the front end side. The fastener member for disposable diapers according to claim 1, wherein the fastener member is disposed in a substantially X-shaped curved shape by a combination of the elastic member disposed in a curved shape of a horizontal U shape that is inverted at the base end side.   The fastener member for a disposable diaper according to any one of claims 1 to 4, wherein the elastic member is discontinuous by cutting a curved portion oriented in the width direction of the fastener member.   The width direction interval of each elastic member is adjusted in any one of the above-mentioned elastic members in the curve portion orientated in the approximate projection direction of the above-mentioned joining piece part by controlling an inflection position. The fastener member for paper diapers as described in 2.   It is a manufacturing method for obtaining the fastener member for paper diapers in any one of the said Claims 1-6, Comprising: In the process of laminating | stacking a continuous sheet-like upper layer nonwoven fabric and a continuous sheet-like lower layer nonwoven fabric, between these nonwoven fabrics The elastic member is arranged in a wavy curved shape, and the tape-like adhesive bonding means or mechanical bonding means is continuously arranged on one surface of the laminated nonwoven fabric sheet, and then the adhesive bonding means or mechanical bonding means Are alternately cut and cut at a position that matches the curved phase of the elastic member. An absorbent body is interposed between the liquid-permeable surface sheet and the back sheet, and is provided to protrude laterally on both sides of the back side, and is fixed to the abdominal surface with a paper diaper applied to the body. In the disposable paper diaper having a fastener member for attaching the paper diaper to the body by
The fastener member is a laminated nonwoven fabric sheet, an elastic member that is interposed between the nonwoven fabric sheets and has a curved shape having at least an inversion portion, and an adhesive bonding means provided on the inner surface side of the nonwoven fabric sheet Or a disposable paper diaper characterized by comprising mechanical fastener means. Leg elastic which interposes an absorber between a liquid-permeable surface sheet and a back sheet, forms side flap portions where the absorber does not exist on both side portions, and forms a leg circumference gather on the side flap portions Disposable with a fastener member for attaching the paper diaper to the body by placing the paper diaper on the abdominal surface with the paper diaper applied to the body in a state where the member is arranged and provided on both sides on the back side In paper diapers,
The fastener member is a laminated nonwoven fabric sheet, an elastic member that is interposed between the nonwoven fabric sheets and has a curved shape having at least an inversion portion, and an adhesive bonding means provided on the inner surface side of the nonwoven fabric sheet Or the disposable diaper which consists of a mechanical fastener means and is arrange | positioned so that the one side edge part of the said elastic member may overlap with the said leg elastic member.

Images