WO2009081654A1

WO2009081654A1 - Disposable diaper

Info

Publication number: WO2009081654A1
Application number: PCT/JP2008/069534
Authority: WO
Inventors: Hiroko Yamada
Original assignee: Kbf Inc.
Priority date: 2007-12-25
Filing date: 2008-10-28
Publication date: 2009-07-02
Also published as: JP2009153558A

Abstract

A disposable diaper comprising one sheet-form main body which is worn so that an elastic stretch member completely surrounds the periphery of each thigh of the human body and both ends of the elastic stretch member are fixed. The disposable diaper can thus prevent lateral leakage. The disposable diaper comprises one sheet-form main body (12) which is composed of a back part (12a), a front part (12b), and a middle connection part (12c) connecting these and has an inner side (12d) and an outer side. The middle connection part (12c) has a freely stretchable first elastic stretch member (40) near each edge (13). Part of the inner side (12d) is jointed to part of the outer side so that one end of the first elastic stretch member (40) is joined to or brought near to the other end. These parts thus joined or brought near to each other are detachably fixed with a fixing means (50) for connection.

Description

Disposable paper diapers

The present invention relates to a disposable paper diaper that prevents side leakage.

Conventional disposable diapers have been used for infants, bedridden elderly people, and temporarily bedridden sick people. Conventional disposable disposable diapers generally include a sheet-like one assembled in a three-dimensional shape such as a brief, and a three-dimensional brief assembled from the beginning. Since one sheet-like material is easier to attach and detach than the one assembled in the form of a three-dimensional brief from the beginning, it is widely used not only for going out but also for a bedridden state. A disposable paper diaper for assembling a single sheet into a three-dimensional shape is disclosed in Patent Document 1, for example, and the disposable paper diaper will be described with reference to FIGS.

As shown in FIG. 9, a single sheet-like disposable paper diaper 70 includes a single sheet-like main body 72 and an absorption unit 74 provided at the center of the main body 72. The main body 72 includes an upper back surface 72a (a portion that contacts the back side when worn on the human body), a lower front surface portion 72b (a portion that contacts the abdomen when worn on the human body) and a back surface from the upper portion to the lower portion in the vertical direction of FIG. 72a and an intermediate connecting portion 72c intermediate the front surface portion 72b. The vertical direction of the main body 72 is relatively longer than the horizontal direction (the vertical direction and the horizontal direction are the directions shown in FIG. 7), and the horizontal width of the back surface portion 72a and the front surface portion 72b is set to be longer than the horizontal width of the intermediate connecting portion 72c. ing. The absorption unit 74 is set in a long shape along the longitudinal direction of the main body 72. Adhesive tapes 76 as fixing means are attached to the left and right of the back surface portion 72 a of the main body 72. Near both edges of the intermediate connecting portion 72c of the main body 72, elastic elastic members 78 such as springs are provided along both edges. Both edges of the intermediate connecting portion 72c are wound around the thigh of the human body.

As shown in FIG. 10, the absorption unit 74 is generally provided between a liquid-permeable top sheet 80 made of a nonwoven fabric or the like and a back sheet 82 made of a non-liquid-permeable material. The absorbent unit 74 is generally a container-shaped non-permeable member 84 made of polyethylene or the like, an absorbent body 86 made of cotton pulp or the like provided inside the non-permeable member 84, and an absorbent body. It covers the upper surface of 86 and comprises a liquid one-sided transmission sheet 88 that allows liquid to pass from the outside to the absorber 86 side but does not allow liquid to pass from the absorber 86 side to the outside.

When a liquid such as urine is brought onto the absorption unit 74, the liquid is absorbed from the liquid-permeable top sheet 80 through the liquid one-side transmission sheet 88 to the absorber 86. The liquid absorbed by the absorbent body 86 is surrounded by the liquid-impermeable member 84 so as not to leak out. Further, the liquid one-side transmission sheet 88 uses a material that allows liquid to pass in one direction (toward the absorber 86) but does not pass in the opposite direction. For this reason, the liquid absorbed by the absorber 86 side is absorbed and stored inside the absorber 86, and in principle does not leak out.

When assembling the disposable paper diaper 70 shown in FIG. 9, two sheet-like main bodies 72 are arranged on the absorption unit 74 side so that the back surface portion 72a and the front surface portion 72b face each other with the position of the intermediate connecting portion 72c as the center. Bend it. And the adhesive tape 76 attached to the right and left of the back surface part 72a is adhere | attached on the back side of the front surface part 72b in FIG. The assembled state of this paper diaper 70 is shown in FIG. Actually, when assembling from the state of FIG. 9 to the state of FIG. 11, the back surface 72a of the main body 72 is joined to the back of the person wearing the paper diaper, and the outer edge 90 of the intermediate connecting portion 72c of the main body 72 is connected to the paper diaper. Is brought into contact with the inner side of the person's thigh, and the front portion 72a is joined to the stomach of the person wearing the disposable diaper. Thereafter, the adhesive tape 76 attached to the left and right of the back surface portion 72a is bonded to the back side of the front surface portion 72b. Thereby, the paper diaper 70 becomes three-dimensional (FIG. 11), and the paper diaper 70 can be attached to the human body.

JP 2000-217862 A

Near the outer edge 90 of the intermediate connecting portion 72c of the main body 72, an elastic elastic member 78 such as a spring is provided along both edges. The elastic expansion / contraction member 78 is located at a part of the thigh (not the entire circumference), but the function of the elastic expansion / contraction member 78 is adapted to the size of the person's thigh and the intermediate connecting portion 72c. The length along both outer edges 90 is adjusted. Further, the one end 94a and the other end 94b (FIG. 9) of the elastic elastic member 78 are not in any communication relationship in the assembled state (FIG. 11). For this reason, the elastic expansion-contraction member 78 does not tighten the periphery of the thigh, but is disposed in a loose state around a part of the periphery of the thigh.

In general, in the paper diaper 70, when the body is turned over or the body is moved, the liquid-impervious member 84 or the liquid one-side permeable sheet 88 may be damaged. In this case, the liquid contained in the absorbent body 86 may be damaged. There is a risk of leaking outside. When the liquid contained in the absorbent body 86 leaks, the elastic elastic member 78 does not prevent the liquid from leaking, and the leaked liquid passes through the position of the elastic elastic member 78 to the paper diaper 70. It was leaking outside. In this way, a single sheet disposable disposable diaper is assembled so that the area around the thigh is loosened, and liquid leakage at this position cannot be prevented, and leakage from the disposable diaper 70 There was a problem that the liquid oozed into clothing.

The present invention has been made in view of the above points, and in the assembled state of one sheet-like main body, the circumference of the thigh of the human body is made a round with an elastic elastic member, and both ends of the elastic elastic member are fixed. Therefore, an object of the present invention is to provide a disposable paper diaper that can prevent side leakage.

The disposable paper diaper according to the present invention includes a sheet-like main body having an inner surface that contacts the human body and an outer surface that does not contact the human body, and a center of the inner surface of the main body, and absorbs liquid. A disposable paper diaper having a main absorbent unit for storage, comprising a first elastic stretchable member that is stretchable between an outer edge of the main body and the main absorbent unit, and joining one end and the other end of the first elastic stretchable member Alternatively, a part of the inner surface and a part of the outer surface are overlapped so as to be close to each other, and the overlapped portion or the vicinity of the overlapped portion is detachably fixed by a connecting fixing means. It is what. The present invention is characterized by comprising a first sub-absorption unit that absorbs and stores liquid on the main absorption unit side from the position of the first elastic stretch member in the vicinity of the first elastic stretch member. In the present invention, the connecting fixing means is a first connecting fixing means attached to the outer side surface of the main body, and a part of the inner side surface of the main body is detachably fixed to the first connecting fixing means. It is characterized by this. According to the present invention, the connection fixing means is a second connection fixing means attached to either the inner side surface or the outer side surface of the main body, and the second connection fixing means is attached to and detached from the outer side surface of the main body. It is characterized by being freely fixed. The present invention includes a second elastic expansion / contraction member between the position of the first elastic expansion / contraction member and the position of the main absorption unit in the main body, and includes one end of the second elastic expansion / contraction member and the second elastic expansion / contraction member. A part of the inner surface and a part of the outer surface are overlapped so that the ends are joined or close to each other, and the overlapped portion or the vicinity of the overlapped portion is detachable by the connecting fixing means It is characterized by being fixed. The present invention includes a second secondary absorption unit that absorbs and stores liquid on the side of the main absorption unit from the position of the second elastic expansion / contraction member in the vicinity of the second elastic expansion / contraction member. In the present invention, the connecting fixing means is a first connecting fixing means attached to the outer side surface of the main body, and a part of the inner side surface of the main body is detachably fixed to the first connecting fixing means. It is characterized by this. In the present invention, the connection fixing means is a second connection fixing means attached to either the inner side surface or the outer side surface of the main body, and the second connection fixing means is attached to the outer side surface of the main body. It is characterized by being detachably fixed. The present invention is characterized in that a first elastic expansion / contraction region extending in the lateral direction is formed at a position opposite to the front surface portion in the back surface portion of the main body. The present invention is characterized in that a second elastic expansion / contraction region extending in the lateral direction is formed at a position opposite to the back surface portion of the front surface portion of the main body.

According to the disposable paper diaper according to the present invention, the body portion located around the thigh is provided with the first elastic elastic member, and at the time of wearing, one end or the vicinity thereof and the other end or the vicinity thereof are fixed by the fixing means. It shall be fixed. That is, the first elastic expansion / contraction member is formed into an elastic ring, that is, a rubber band shape, and the circumference of the thigh is elastically tightened by the rubber band-shaped first elastic expansion / contraction member. Even if the liquid leaks outside from the main absorption unit, the liquid is blocked by the first elastic elastic member and does not leak outside the position of the first elastic elastic member. Therefore, the malfunction that the liquid leaked from the main absorption unit oozes out to clothing can be prevented. In this case, the top sheet is made of a permeable and water-absorbing material located closer to the main absorption unit than the position of the first elastic expansion / contraction member, and can absorb and retain a liquid, though a small amount.
In addition, a second elastic expansion / contraction member is provided on the main absorption unit side of the first elastic expansion / contraction member to elastically tighten the periphery of the thigh. In this case, double leakage prevention between the first elastic elastic member and the second elastic elastic member is achieved, and further leakage prevention is achieved as compared with the case having only the first elastic elastic member.

A first secondary absorption unit is provided on the main absorption unit side in the vicinity of the first elastic elastic member on the inner surface of the main body. In that case, the first sub-absorption unit also comes into close contact with the periphery of the thigh due to the tightening force of the first elastic expansion / contraction member on the thigh. As a result, even if the liquid leaks from the main absorption unit to the outside, the liquid is absorbed by the first sub absorption unit, and the leakage of the liquid can be prevented at the position of the first sub absorption unit. In addition, double leakage prevention combined with the first elastic elastic member can be achieved. Therefore, it is possible to further prevent the problem that the liquid leaking from the main absorption unit oozes into the clothing.
In addition, a second secondary absorption unit is provided on the main absorption unit side in the vicinity of the second elastic elastic member on the inner side surface of the main body. That is, two sets of a first elastic stretch member and a first sub-absorption unit and a second elastic stretch member and a second sub-absorption unit are provided. When a set of the second elastic expansion / contraction member and the second sub-absorption unit is provided, the second sub-absorption unit is also brought into close contact with the thigh by the tightening force to the thigh of the second elastic expansion / contraction member. As a result, even if the liquid leaks outside from the main absorption unit, the liquid is absorbed by the second sub-absorption unit and the first sub-absorption unit, and prevents the liquid from leaking outside the first elastic elastic member. be able to. In addition, it is possible to prevent quadruple leakage including the second elastic elastic member and the first elastic elastic member. Therefore, the malfunction that the liquid leaked from the main absorption unit oozes out to clothing can be prevented more reliably.

It is a front view of the disposable paper diaper which concerns on this invention. It is a rear view of the disposable paper diaper which concerns on this invention. FIG. 2 is an enlarged sectional view taken along line AA in FIG. 1. It is a front view which shows the state which folded the disposable paper diaper into two in the vertical direction from the state of FIG. It is the elements on larger scale of the state of FIG. 4 adapted to the human body. It is a front view which shows the state which bent the both sides of the back part of the main body in the center from the state of FIG. It is the elements on larger scale of the state of FIG. 6 adapted to the human body. It is explanatory drawing which shows the state which adapted 2 sets of elastic elastic members and absorption units to the human body. It is a front view of the conventional disposable paper diaper. It is principal part sectional drawing of the disposable paper diaper shown in FIG. It is a perspective view which shows the assembly state of the disposable paper diaper of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Disposable disposable diaper 12 Main body 12d Inner side surface 12e Outer side surface 13 Outer edge 14 First elastic stretchable region 16 Elastic stretchable member 18 Second elastic stretchable region 20 Elastic stretchable member 22 Main absorption unit 34 Second secondary absorption unit 36 Second elastic stretchable member 38 First sub-absorption unit 40 First elastic elastic member 50 First fixing means 52 Second fixing means 54 Adhered surface 56 Elastic elastic member 58 Second elastic elastic area

Next, the disposable paper diaper of this invention is demonstrated based on drawing.
FIG. 1 is a front view showing a disposable paper diaper according to the present invention opened in a sheet, and FIG. 2 is a rear view of FIG. A disposable paper diaper 10 shown in FIG. 1 and FIG. 2 has a main body 12 having a sheet shape and a substantially T-shape. FIG. 1 shows an inner surface that contacts the human body, and FIG. 2 shows an outer surface that does not contact the human body. 1 and 2, the main body 12 has a back surface portion 12a (a portion that contacts the back side of the human body when the disposable diaper is worn) and a front surface portion 12b (a portion that contacts the ventral side of the human body when the disposable diaper is worn). And an intermediate connecting portion 12c between the back surface portion 12a and the front surface portion 12b. The main body 12 has an inner side surface 12d (FIG. 1) in which most portions contact the human body and an outer side surface 12e (FIG. 2) that does not contact the human body. The width of the front surface portion 12b is preferably set to the same narrow width (20 to 30 cm) that contacts only the front surface of the stomach, and the width of the back surface portion 12a is set to be sufficiently longer than the front surface portion 12b. The lateral width of the intermediate connecting portion 12c varies from the lateral width of the back surface portion 12a to the lateral width of the front surface portion 12b. The outer edge 13 of the intermediate connecting portion 12c has a curved shape, and covers the thigh when worn on the human body, but becomes a saying.

1 and 2, a first elastic stretchable region 14 that is stretchable in the lateral direction is provided on the upper portion of the back surface portion 12 a of the main body 12. The first elastic stretchable region 14 is a substantially square region that occupies about half of the area of the back surface portion 12a. The first elastic stretchable region 14 has a plurality of elastic stretchable members 16 such as springs parallel to the lateral direction. In FIG.1 and FIG.2, the 2nd elastic expansion-contraction area | region 18 which can be expanded-contracted in the horizontal direction is provided in the lower part of the front-surface part 12b of the main body 12. FIG. The second elastic stretchable region 18 is a substantially square region that occupies about half of the area of the front surface portion 12b. The second elastic stretchable region 18 includes a plurality of elastic stretchable members 20 such as springs parallel to the lateral direction.

A main absorption unit 22 that absorbs a liquid such as urine is provided at a central portion between the first elastic stretchable region 14 and the second elastic stretchable region 18 in the main body 12. Here, the main body 12 and the main absorption unit 22 will be described with reference to FIG. 3 which is an enlarged sectional view taken along the line AA of FIG. The main body 12 is formed by adhering a liquid-permeable and water-absorbable top sheet 24 made of a nonwoven fabric or the like and a back sheet 26 made of a non-liquid-permeable material. The liquid-permeable top sheet 24 is disposed on the inner surface 12d side (FIG. 1) that directly contacts the human body, and the back sheet 26 is disposed on the outer surface 12e side (FIG. 2) that does not contact the human body. The liquid-permeable top sheet 24 is generally made of a material that can be bonded to an adhesive member that is a fixing means described later, and the back sheet 26 made of a non-liquid-permeable material is generally not able to bond an adhesive member that is a fixing means described later. Consists of materials. However, the back sheet 26 made of a non-liquid permeable material may be a material to which the adhesive member can be bonded.

The main absorbent unit 22 includes a container-like non-permeable member 28 made of polyethylene or the like, an absorbent body 30 made of cotton-like pulp and the like provided in the non-permeable member 28, and an absorbent body. It covers the upper surface of 30 and comprises a liquid one-side permeable sheet 32 that allows liquid to pass from the outside to the absorber 30 side but does not allow liquid to pass from the absorber 30 side to the outside. The main absorption unit 22 is not limited to this configuration as long as it absorbs the liquid and holds it. Further, in FIG. 3, the main absorption unit 22 is shown between the liquid-permeable top sheet 24 and the non-liquid-permeable back sheet 26, but on the outer surface of the liquid-permeable top sheet 24. It may be provided.

As shown in FIGS. 1 and 3, the main body 12 includes a second sub-absorption unit 34 and a second elastic elastic member such as a spring in order from the position of the main absorption unit 22 toward the outer side (the outer edge side of the main body 12). 36 is provided. The main body 12 is provided with a first sub-absorption unit 38 and a first elastic expansion / contraction member 40 such as a spring in order from the position of the second elastic expansion / contraction member 36 to the outer side (the outer edge side of the main body 12). The first elastic elastic member 40 is provided in the vicinity of the outer edge 13 of the intermediate coupling portion 12 c of the main body 12, and is formed in a shape along the outer edge 13. The first sub-absorption unit 38 is disposed in the vicinity of the first elastic elastic member 40 and is formed in a shape along the first elastic elastic member 40. It arrange | positions in the vicinity of the 2nd elastic expansion-contraction member 36 and the 2nd secondary absorption unit 34, and they are formed in the shape along the 1st elastic expansion / contraction member 40 and the 1st secondary absorption unit 38. As shown in FIG.

In the second sub-absorption unit 34, the second elastic expansion / contraction member 36, the first sub-absorption unit 38 and the first elastic expansion / contraction member 40, it is desirable that each end reaches the outer edge of the main body, but the present invention is not limited thereto. Here, the second sub-absorption unit 34 and the second elastic expansion / contraction member 36 are one set, the first sub-absorption unit 38 and the first elastic expansion / contraction member 40 are one set, and a total of two sets are provided. Only a pair may be used. In the case of only one set, it is desirable to provide an elastic elastic member near the outer edge 13 of the intermediate connecting portion 12c.

When a total of two sets of elastic elastic members and sub-absorption units are provided, the second elastic elastic member 36 on the inner side is positioned near the folding fold at the border between the stomach and the thigh when the paper diaper is mounted. It is desirable to set so as to. When the second elastic expansion / contraction member 36 is disposed at the position of the folding fold at the boundary between the belly and the thigh, the second secondary absorption unit 34 is located on the abdomen side of the position of the folding fold. It is possible to prevent the liquid from leaking before reaching the position, for example, it is possible to prevent the liquid from leaking to the thigh when sitting in a chair. When the sub-absorption unit and the elastic expansion / contraction member are made into one set, the elastic expansion / contraction member is arranged at the position of the folding fold or at the position of the thigh below the position of the folding fold. Also good.

The second sub-absorption unit 34 has a width that is significantly narrower than that of the main absorption unit 22 (FIGS. 1 and 3). As shown in FIG. 3, the second sub-absorption unit 34 includes a container-shaped liquid-impervious member 42 a that opens on one surface made of polyethylene or the like, and a cotton provided in the container-shaped liquid-impervious member 42 a. Comprising an absorbent body 44a made of sheet pulp and the like, and a liquid one-side permeable sheet 46a that covers the entire upper surface of the absorbent body 44a and allows liquid to pass from the outside to the absorbent body 44a side but does not pass liquid from the absorbent body 44a side to the outside. Has been. The container-shaped non-permeable member 42 a is formed such that the height on the side close to the main absorption unit 22 is lower than the height on the side close to the outer edge side of the main body 12. It is desirable to set the shape so that it can be easily absorbed by the absorber 44a of the second sub-absorption unit 34 in the case of leakage. The second auxiliary absorption unit 34 is not limited to this configuration as long as it absorbs and holds urine or the like inside.

As shown in FIG. 3, the first sub-absorption unit 38 has a width that is significantly narrower than that of the main absorption unit 22. The first sub-absorption unit 38 includes a container-shaped non-permeable member 42b made of polyethylene or the like and an absorbent body made of cotton-like pulp or the like provided in the container-shaped non-permeable member 42b. 44b and a liquid one-sided transmission sheet 46b that covers the entire top surface of the absorber 44b and allows liquid to pass from the outside to the absorber 44b side but does not allow liquid to pass from the absorber 44b side to the outside. The container-shaped liquid-impervious member 42 b is formed such that the height on the side close to the main absorption unit 22 (second secondary absorption unit 34) is lower than the height on the side close to the outer edge side of the main body 12. It is desirable to set the shape so that it can be easily absorbed by the absorber 44b of the first sub-absorption unit 38 when urine or the like leaks laterally beyond the absorption unit 34. The first auxiliary absorption unit 38 is not limited to this configuration as long as it absorbs and holds liquid such as urine inside.

As shown in FIGS. 1 and 2, the main fixing means 48 and the second connecting fixing means 50 are provided on the left and right outer edges of the back surface portion 12a of the main body 12. The main fixing means 48 and the second connecting fixing means 50 use an adhesive member that is either provided with an adhesive on one side or provided with one engaging portion of a mechanical fastener such as a Velcro fastener on one side. However, the adhesive member is not limited to these. The main fixing means 48 and the second connecting fixing means 50 can be detachably fixed to an adherend surface 54 (described later) of the main body 12. The main fixing means 48 and the second connecting fixing means 50 shown in FIG. 1 are surfaces on which the adhesive member is exposed, and the main fixing means 48 and the second connecting fixing means 50 shown in FIG. 2 do not expose the adhesive member. Surface. Actually, a protective tape (not shown) for covering the adhesive member is attached to the main fixing means 48 and the second connecting fixing means 50 shown in FIG. 1, and the protective tape (not shown) is attached at the time of assembly. Remove and expose the adhesive member. Although two main fixing means 48 are provided on the left and right sides of the back surface portion 12a of the main body 12, any number may be provided.

The second connecting fixing means 50 is attached to a position where it is connected to one end of the second elastic expansion / contraction member 36 and one end of the first elastic expansion / contraction member 40, as shown in FIG. The second connection fixing means 50 is divided into two parts, and one end of the second elastic expansion / contraction member 36 is connected to one of the two second connection fixing means 50, and the first elastic expansion / contraction member is connected. One end of 40 may be connected to another one of the second connecting fixing means 50 divided into two.

As shown in FIG. 2, on the outer surface 12e of the main body 12, the first connecting fixing means 52 are provided on both sides of the position of the intermediate connecting portion 12c close to the front face portion 12b or the position of the front face portion 12b close to the intermediate connecting portion 12c. Install. The first connecting fixing means 52 is also preferably made of an adhesive member that is provided with an adhesive on one side or provided with one engaging portion of a mechanical fastener such as a Velcro fastener on one side. However, the adhesive member is not limited to this. The first connecting fixing means 52 can be detachably fixed to the inner surface 12d of the main body 12. The other end of the second elastic expansion / contraction member 36 and the other end of the first elastic expansion / contraction member 40 are positioned on the back side (FIG. 1) of the first connecting fixing means 52. That is, the other end of the second elastic elastic member 36 and the other end of the first elastic elastic member 40 are connected to the first connecting fixing means 52. The first connecting fixing means 52 is divided into two, and the other end of the second elastic expansion / contraction member 36 is connected to one of the two first connecting fixing means 52 and the first elastic expansion / contraction member 36 is connected. The other end of the member 40 may be connected to another one of the first connecting fixing means 52 divided into two.

As shown in FIG. 2, the main fixing means 48 and the second connecting fixing means 50 are easily provided on the outer side surface 12e of the main body 12 in the region extending from substantially the entire front surface portion 12b to the middle of the intermediate connecting portion 12c. The adherend surface 54 made of a material that can be attached and detached is fixed. The adherend surface 54 includes a second elastic elastic member 56 such as a plurality of springs parallel to the lateral direction at a position matching the second elastic elastic region 18 (FIG. 1) of the inner surface 12d of the main body 12. An elastic stretchable region 58 is formed. The second elastic stretchable region 58 can be stretched in the lateral direction together with the second elastic stretchable region 18. That is, the free end side of the front surface portion 12b is extendable in the horizontal direction. The elastic elastic member 20 that expands and contracts the second elastic expansion / contraction region 18 and the elastic elastic member 56 that expands and contracts the second elastic expansion / contraction region 58 may be the same elastic expansion / contraction member.

Next, a procedure for assembling a sheet-like main body 12 to make a three-dimensional paper diaper 10 will be described. In FIG. 1, the sheet-like main body 12 is folded in a direction in which the lower edge of the front surface portion 12b is aligned with the upper edge of the back surface portion 12a with the horizontal direction of the intermediate connecting portion 12c as the center. That is, the main body 12 is folded so that the inner surface 12d of the main body 12 is aligned, and the state shown in FIG. 4 is obtained. Actually, the inner surface 12d of the main body 12 is folded so as to wrap the lower body of the human body, and the state shown in FIG. 5 is obtained. In the state shown in FIG. 5, the first elastic stretchable region 14 (see FIG. 4) on the inner side surface 12d contacts the back side of the human body, and the second elastic stretchable region 18 on the inner side surface 12d side (see FIG. 4) contacts the abdominal side of the human body. 4) contact.

4 and 5, a part of the inner side surface 12d of the main body 12 (the left and right sides of the back surface portion 12a) so that both ends of the second elastic elastic member 36 and both ends of the first elastic elastic member 40 are joined or brought close to each other. Both sides are overlapped toward a part of the outer surface 12e of the main body 12 (the bonded surface 54 of the front surface portion 12b). Thus, the main fixing means 48 and the second connecting fixing means 50 are brought into a state where they can be bonded to the adherend surface 54 (FIGS. 6 and 7). Further, the proximity region 60 (inner side surface 12 d) of the second connection fixing means 50 of the main body 12 is superposed on the first connection fixing means 52. When changing from the state of FIG. 5 to the state of FIG. 7, the second elastic stretchable member 36 and the first elastic stretchable member 40 are appropriately stretched with the human body sandwiched between the main bodies 12 (FIG. 5). 6 and 7, first, the proximity region 60 (a part of the inner side surface 12d of the main body 12) of the main body 12 is joined to the first connecting fixing means 52 (a part of the outer side surface 12e of the main body 12). . As a result, the inner surface 12d of the main body 12 and the first connecting fixing means 52 (the outer surface 12e of the main body 12) are bonded and fixed. Further, the second connecting fixing means 50 is adhered to the adherend surface 54 (a part of the outer surface 12e of the main body 12). In this bonded state, a part of the inner side surface 12d of the main body 12 is joined to a part of the outer side surface 12e of the main body 12, and the vicinity of the joined part is fixed by the second connecting fixing means 50. Become. The second connecting fixing means 50 is bonded and fixed to the outer side surface 12e of the main body 12, but may be fixed to the inner side surface 12d of the main body 12 by bonding.

As shown in FIG. 5, one end of the second elastic expansion / contraction member 36 and one end of the first elastic expansion / contraction member 40 are located at the back side position of the main body 12 where the second connection fixing means 50 is bonded, and the first connection fixing means The other end of the second elastic expansion / contraction member 36 and the other end of the first elastic expansion / contraction member 40 are located at the back side position of 52. Therefore, by adhering the proximity region 60 of the main body 12 to the first connecting fixing means 52, one end and the other end of the second elastic elastic member 36 are connected and fixed, and one end of the first elastic elastic member 40 is fixed. The other end is connected and fixed. As a result, the second elastic elastic member 36 and the first elastic elastic member 40 each become an annular elastic body such as a rubber band, and the second elastic elastic member 36 and the first elastic elastic member 40 are elastic around the thigh of the human body. Can be tightened. The tightening strength for tightening the periphery of the thigh with the second elastic stretchable member 36 and the first elastic stretchable member 40 is freely adjusted by the strength with which the second elastic stretchable member 36 and the first elastic stretchable member 40 are stretched. can do.

In the above description, the bonding between the first connecting fixing means 52 and the proximity region 60 of the main body 12 and the bonding between the second connecting fixing means 50 and the adherend surface 54 are performed at two locations. If either (at least one) is bonded, one end and the other end of the second elastic elastic member 36 are connected and fixed, and one end and the other end of the first elastic elastic member 40 are connected and fixed. be able to. When the second connecting fixing means 50 is merely adhered to the adherend surface 54 without providing the first connecting fixing means 52, the front surface of the main body 12 at the position where the second connecting fixing means 50 adheres. The other end of the second elastic elastic member 36 and the other end of the first elastic elastic member 40 are positioned on the part 12b. Alternatively, the vicinity of the other end of the second elastic expansion / contraction member 36 and the vicinity of the other end of the first elastic expansion / contraction member 40 are positioned on the front surface portion 12b of the main body 12 where the second connecting fixing means 50 is bonded. Thus, by adhering the second connecting fixing means 50 to the adherend surface 54, both ends of the second elastic elastic member 36 can be connected and fixed, and both ends of the first elastic elastic member 40 are connected. Can be fixed. If both the first connecting fixing means 52 and the proximity region 60 of the main body 12 and the second connecting fixing means 50 and the adherend surface 54 are bonded, the second elastic expansion / contraction member is obtained. The connection and fixing state of both ends of 36 and the first elastic elastic member 40 can be further strengthened.

7 shows the relationship between the second elastic expansion / contraction member 36 and the first elastic expansion / contraction member 40 and the first connecting fixing means 52. In FIG. 8, the second secondary absorption unit 34 and the second elastic expansion / contraction member 36 are shown. The relationship between one set of the first connection fixing means 52 and the first connection fixing means 52 and the first set of the first sub-absorption unit 38 and the first elastic elastic member 40 are shown. As shown in FIG. 8, the second sub-absorbing unit 34 is arranged in a substantially annular shape around the second sub-absorbing unit 34 slightly above the position of the second elastic elastic member 36 in a state where both ends are connected (position relatively close to the main absorbing unit 22). Prepare for. Further, a first sub-absorption unit 38 is provided in a substantially annular shape around the thigh slightly above the position of the first elastic elastic member 40 in a state where both ends are connected (a position relatively close to the main absorption unit 22).

By fixing both ends of the second elastic expansion / contraction member 36 and both ends of the first elastic expansion / contraction member 40, the second elastic expansion / contraction member 36 and the first elastic expansion / contraction member 40 can be tightly wound around the thigh without a gap. it can. For this reason, the 2nd secondary absorption unit 34 which adjoins to the 2nd elastic expansion-contraction member 36 and the 1st secondary absorption unit 38 adjacent to the 1st elastic expansion-contraction member 40 can touch just closely to a thigh. In FIG. 8, both the second sub-absorption unit 34 and the first sub-absorption unit 38 are shown as having a length that goes around the thigh of the human body, and a length that goes around the thigh of the human body is provided. Is desirable. However, both the second sub-absorption unit 34 and the first sub-absorption unit 38 may be provided only at a location where a liquid such as urine may leak (location from the inner crotch to the side via the hip). It is not always necessary to make a length that intersects the thighs of the human body.

After the back surface portion 12a of the inner surface 12d of the main body 12 is bonded to the first connecting fixing means 52, the second connecting fixing means 50 is bonded to the adherend surface 54 (the outer surface 12e of the main body 12). The fixing means 48 is adhered to the adherend surface 54 (FIG. 6). When the main fixing means 48 is bonded to the adherend surface 54, in the case of a large person, the back surface portion 12a of the main body 12 can be extended in the lateral direction by extending the first elastic stretchable region 14 in the lateral direction. The main fixing means 48 can be adhered to the adherend surface 54. In the case of a person with a larger body, the front elastic portion 12b can be extended in the horizontal direction by extending the second elastic stretchable regions 18 and 58 in the horizontal direction, and the main fixing means 48 is bonded to the adherend surface 54. can do.

The disposable paper diaper 10 configured as described above has the first elastic elastic member 40 wrapped around the thigh and fixed at both ends. By elastically winding the first elastic stretchable member 40 around the thigh, the first elastic stretchable member 40 is tightly bonded around the thigh without a gap. As a result, even if liquid such as urine leaks from the main absorption unit 22 to the outside from the main absorption unit 22, leakage of the liquid can be prevented at the position of the first elastic expansion / contraction member 40 as long as the amount is small. . Since some liquid leaking to the top sheet 24 located on the main absorption unit 22 side from the first elastic expansion / contraction member 40 can be absorbed, even if only the first elastic expansion / contraction member 40 is used, the liquid leaks. It is possible to prevent the liquid from adhering to the clothing. If the second elastic elastic member 36 is provided closer to the main absorption unit 22 than the position of the first elastic expansion / contraction member 40, a double elastic expansion / contraction member is wound around the thigh, and the main absorption unit 22 leaks out. It is possible to more reliably prevent the leakage of liquid to the outside.

Furthermore, a first sub-absorption unit 38 that absorbs and holds liquid may be provided at a position closer to the main absorption unit 22 than the position of the first elastic expansion / contraction member 40 and close to the first elastic expansion / contraction member 40. In this case, the first sub-absorption unit 38 can be brought into close contact with the thigh without a gap by the first elastic elastic member 40. As a result, even if the liquid leaks from the main absorption unit 22 to the thigh side, the liquid is absorbed by the first sub-absorption unit 38, so that the liquid such as urine does not reach the first elastic elastic member 40, and the clothes It is possible to prevent the liquid from adhering to the surface. In addition, a second secondary absorption unit 34 that absorbs and holds liquid may be provided at a position closer to the main absorption unit 22 than the position of the second elastic expansion / contraction member 36 and close to the second elastic expansion / contraction member 36. Also in this case, the second sub-absorption unit 34 is in close contact with the thigh without a gap by the second elastic elastic member 36. As a result, the double sub-absorption unit of the first sub-absorption unit 38 and the second sub-absorption unit 34 is wound around the thigh, and liquid may leak from the main absorption unit 22 to the thigh side. However, it is possible to more reliably prevent liquid from adhering to clothing by absorbing liquid such as urine by the double auxiliary absorption unit.

Furthermore, the main fixing means 48, the first contact means 50, and the second contact means 52 are attached to and detached from the front of the human body by narrowing the horizontal width of the front surface portion 12b of the main body that contacts the stomach of the human body (the horizontal width is 20 to 30 cm). This makes it easy to replace the disposable diaper when going out.

In the above description, the two elastic elastic members 36 and the second auxiliary absorption unit 34 and the first elastic elastic member 40 and the first auxiliary absorption unit 38 are provided. However, only one set of elastic elastic member and absorption unit may be used. However, side leakage can be more reliably prevented by using two sets.

Claims

One sheet-like main body having an inner surface that contacts the human body and an outer surface that does not contact the human body, and a main absorption unit that is provided at the center of the inner surface of the main body and absorbs and stores liquid. A disposable paper diaper having a first elastic elastic member that is extendable and contractable between an outer edge of the main body and the main absorption unit, and is arranged so that one end and the other end of the first elastic elastic member are joined or close to each other. A disposable paper diaper characterized in that a part of the side surface and a part of the outer surface are overlapped, and the overlapped portion or the vicinity of the overlapped portion is detachably fixed by a connecting fixing means.
The disposable paper diaper according to claim 1, further comprising a first sub-absorption unit that absorbs and stores liquid on the side of the main absorption unit from the position of the first elastic expansion / contraction member in the vicinity of the first elastic expansion / contraction member.
The connecting fixing means is a first connecting fixing means attached to the outer surface of the main body, and a part of the inner side surface of the main body is detachably fixed to the first connecting fixing means. The disposable paper diaper according to claim 1 or 2.
The connecting fixing means is a second connecting fixing means attached to either the inner side surface or the outer side surface of the main body, and the second connecting fixing means is detachably fixed to the outer side surface of the main body. The disposable paper diaper according to claim 1 or 2.
A second elastic expansion / contraction member is provided between the position of the first elastic expansion / contraction member and the position of the main absorption unit in the main body, and one end of the second elastic expansion / contraction member is joined to the other end of the second elastic expansion / contraction member. Alternatively, a part of the inner side surface and a part of the outer side surface are overlapped so as to be close to each other, and the overlapped portion or the vicinity of the overlapped portion is detachably fixed by the connecting fixing means. The disposable paper diaper according to claim 1.
6. The disposable paper diaper according to claim 5, further comprising a second secondary absorption unit that absorbs and stores liquid on the side of the main absorption unit from the position of the second elastic expansion / contraction member in the vicinity of the second elastic expansion / contraction member.
The connecting fixing means is a first connecting fixing means attached to the outer surface of the main body, and a part of the inner side surface of the main body is detachably fixed to the first connecting fixing means. The disposable paper diaper according to claim 5 or 6.
The connecting fixing means is a second connecting fixing means attached to either the inner side surface or the outer side surface of the main body, and the second connecting fixing means is detachably fixed to the outer side surface of the main body. The disposable paper diaper according to claim 5 or 6, characterized in that
The first elastic stretchable region that stretches in the lateral direction is formed at a position opposite to the front portion of the back portion of the main body, according to any one of claims 3, 4, 7, and 8. Disposable paper diapers.
The second elastic stretchable region that stretches in the lateral direction is formed at a position opposite to the back surface portion of the front surface portion of the main body, according to any one of claims 3, 4, 7, and 8. Disposable paper diapers.