TW201635992A - Disposable diapers - Google Patents

Abstract

A disposable diaper having a longitudinal direction and a lateral direction intersecting the longitudinal direction, and comprising: an absorbent main body having an absorbent body for absorbing excrement; a back side waist portion located at one end side of the absorbent main body; a ventral waist portion on the other end side of the absorbent body; wherein a cutting portion is provided at an upper end of the longitudinal waistline portion of the longitudinal direction of the front waist waist portion The width in the lateral direction is smaller than the maximum width of the absorbent body, and the elastic members along the lateral direction are provided on both side portions of the cutting portion in the lateral direction.

Description

Disposable diapers

The present invention relates to disposable diapers.

In the past, disposable diapers have been widely used for wearing children and the like. The disposable diaper includes an absorbent main body including an absorbent body that absorbs excrement, a back waist portion on one end side of the absorbent main body, and a front waist portion on the other end side of the absorbent main body.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2012-192115

When the newborn wears a disposable diaper, the newborn's navel is moist, so it is required that the navel does not touch the disposable diaper. Moreover, the newborn's navel has a fashion clip to prevent bleeding. With. In this case, it is required that the jig mounted on the navel does not touch the disposable diaper.

The present invention has been made in view of the above problems, and an object thereof is to provide a disposable diaper having an appropriate structure for allowing the disposable diaper to be touched without touching the navel or the like.

In order to achieve the above object, a disposable diaper having a longitudinal direction and a lateral direction intersecting the longitudinal direction, and an absorbent body having an absorbent body for absorbing excrement, is located at one end side of the absorbent body. a back waist portion and a belly waist portion located on the other end side of the absorbent body; wherein the upper end of the front waist waist portion in the lateral direction and the upper end of the front waist waist portion in the longitudinal direction are The cutting portion is provided with a width in the lateral direction that is smaller than a maximum width of the absorbent body, and an elastic member along the lateral direction is provided on both side portions of the cutting portion in the lateral direction.

Other features of the present invention are set forth in the description of the specification and the drawings.

According to the present invention, it is possible to realize a disposable urine in order to be used. The pants do not touch the disposable diapers of the navel and the like having an appropriate structure.

1‧‧‧ diapers

1a‧‧‧waist opening

1b‧‧‧ leg opening

10‧‧‧Absorbable ontology

10a‧‧‧One end

10b‧‧‧Other end

11‧‧‧Acceptor

12‧‧‧Depression

13‧‧‧Back side of the back side

14‧‧‧ upper ventral side

15‧‧‧ side

24‧‧‧Top sheet member

25‧‧‧ Back sheet member

26‧‧‧Flanking

26a‧‧‧LG rubber line

28‧‧‧ vertex

29‧‧‧LSG Rubber Line

30‧‧‧ Back side waist

30a‧‧‧ Both sides of the back side

30b‧‧‧top

33‧‧‧Back side rubber line

40‧‧‧ Ventral waist circumference

40a‧‧‧ both sides of the ventral side

40b‧‧‧top

40c‧‧‧ both sides

41‧‧‧Gap section

41a‧‧‧Bottom

41b‧‧‧ side

43‧‧‧ Ventral rubber line

44‧‧‧ Rubber line around the gap

44a‧‧‧

46‧‧‧ intermediate rubber line

47‧‧‧ Upper middle rubber line

48‧‧‧Under the middle rubber line

49‧‧‧ Rubber line around the absorber

50‧‧‧ Rubber line around the upper absorber

51‧‧‧ Rubber line around the lower absorber

61‧‧‧cutting department

LG‧‧‧ leg wrinkles

LSG‧‧‧ leg side wrinkles

R1‧‧‧ upper ventral elastic zone

R2‧‧‧ upper end elastic region

Fig. 1 is a perspective view of a diaper 1 of the present embodiment.

Fig. 2 is a plan view of the diaper 1 in an extended state.

Fig. 3 is a schematic view showing the diameter and the stretching magnification of the ventral rubber line 43.

Fig. 4 is a perspective view showing a continuous appearance of the ventral upper end elastic region R1 and the back side upper end elastic region R2 in the joined ventral side edge portions 40a and the back side edge portions 30a.

Fig. 5 is a schematic view showing a change of a cutting portion.

Figure 6 is a schematic illustration of the application of the cement portion and the uncoated portion of the rubber line 44 around the gap.

At least the following matters will be clarified based on the description of the specification and the drawings.

A disposable diaper having a longitudinal direction and a lateral direction intersecting the longitudinal direction, and having an absorbent main body including an absorbent body for absorbing excrement, a back waist portion located at one end side of the absorbent main body, and a ventral waist portion located on the other end side of the absorbent body; characterized in that a cutting portion is provided at a central portion of the front waistline portion in the lateral direction and at an upper end of the longitudinal waistline portion in the longitudinal direction, wherein the cutting portion has a width in the lateral direction that is smaller than a maximum width of the absorbent body, and the cutting portion is Both side portions of the lateral direction described above are provided with elastic members along the lateral direction.

According to the disposable diaper, it is possible to realize a disposable diaper having an appropriate structure in order to prevent the disposable diaper from coming into contact with the navel.

Preferably, the elastic member is a first elastic member, and a second elastic member is provided below the longitudinal direction of the cutting portion, and the second elastic member is from the abdominal waist portion. One of the two end portions of the lateral side of the lateral direction extends to the other along the lateral direction.

According to the disposable diaper, the wearability of the disposable diaper to the wearer can be further improved.

In the disposable diaper, it is preferable that the first elastic member has a telescopic force smaller than that of the second elastic member.

According to the disposable diaper, the convenience of wearing the disposable diaper can be improved.

Preferably, the disposable elastic diaper extends from the both side portions to the front end portions of the front side, and the number of the first elastic members is smaller than the number of the second elastic members. less.

According to the disposable diaper, it is possible to realize a disposable diaper having an appropriate structure for the disposable diaper to be invisible to the navel.

Preferably, the second elastic member is disposed such that a plurality of strips are arranged side by side in the longitudinal direction, and a plurality of elastic members of the second elastic member are located at an uppermost position of the longitudinal direction of the second elastic member. The smallest of the plurality of the aforementioned second elastic members.

According to the disposable diaper, the convenience of wearing the disposable diaper can be improved.

Preferably, in the disposable diaper, a third elastic member is provided below the second elastic member in the longitudinal direction, and the third elastic member is along the one side of the front end portion along the aforesaid Extending laterally to the other side, and having a discontinuous portion on the absorbent body, the stretching force of the second elastic member located at the lowest position among the plurality of the second elastic members is the largest of the plurality of the second elastic members of.

According to the disposable diaper, the absorbent body can be brought into contact with the wearer's skin without any gap.

Preferably, the disposable diaper is provided in the longitudinal direction below the second elastic member. a third elastic member extending from one of the two end portions of the front side along the lateral direction to the other side, and having a discontinuous portion on the absorbent body, and an elastic member provided on the front waist portion Among them, the elastic member having the largest telescopic force is the aforementioned second elastic member among the first elastic member to the third elastic member.

According to this disposable diaper, the disposable disposable diaper can be suitably applied to the wearer.

In the disposable diaper, it is preferable that the lateral end portions of the front side of the front waist portion and the rear end portions of the back side waist portion are coupled to each other.

According to this disposable diaper, the above advantages can be enjoyed in the pants type diaper.

Preferably, the disposable diaper has the ventral both ends in a state in which the longitudinal position of the upper end of the front waist portion is aligned with the longitudinal position of the upper end of the back waist portion. The end portion and the back end portion are connected to each other, and the elastic member has an elastic upper end elastic end by extending the elastic member from the both side portions to the front end portions at the upper end of the front waist portion. a region, wherein the elastic member is formed to extend from one of the two end portions of the back side to the other side at the upper end of the back waist portion, and an elastic upper end elastic region, the ventral upper end elastic region and the aforementioned The elastic region at the upper end of the back side Both ends of the front side and the back side of the back side are connected to each other.

According to this disposable diaper, the disposable diaper can be smoothly put on.

In the disposable diaper, it is preferable that the end of the elastic member which is provided on the both side portions in the lateral direction of the cutting portion closest to the cutting portion is not coated with a bonding agent, and is applied by bonding other than the end. The elastic member is joined to the aforementioned abdominal waist portion.

According to the disposable diaper, it is possible to prevent the elastic member from being exposed at the cutting portion.

===About disposable diapers for this embodiment ===

Fig. 1 is a perspective view showing a disposable diaper (hereinafter, simply referred to as a diaper 1) of the present embodiment. Fig. 2 is a plan view of the diaper 1 in an extended state. Fig. 3 is a schematic view showing the diameter and the stretching magnification of the ventral rubber line 43. Fig. 4 is a perspective view showing a continuous appearance of the ventral upper end elastic region R1 and the back side upper end elastic region R2 in the joined ventral side edge portions 40a and the back side edge portions 30a.

The disposable diaper (hereinafter, simply referred to as diaper 1) of the present embodiment is mainly a pants-type diaper to which a newborn is to be worn.

In the following description, the longitudinal direction and the lateral direction of the diaper 1 are simply referred to as "longitudinal" and "lateral", respectively. Further, the side that is in contact with the wearer is referred to as "skin side". Moreover, in the following description, "horizontal" is also called "width". direction".

The diaper 1 of the present embodiment has two directions of cross direction (orthogonal) in the longitudinal direction and the lateral direction. Moreover, the diaper 1 is a so-called three-piece type, and has three fittings. In other words, the diaper 1 has an absorbent main body 10 that absorbs excrement such as urine remaining in the crotch portion of the wearer as a first fitting, and has a back waist portion 30 covering the back side portion of the wearer as a second fitting. The ventral waist portion 40 covering the abdominal portion of the wearer is used as the third accessory.

In the extended state of Fig. 2, the back waistline portion 30 and the ventral waistline portion 40 are in a state of being parallel to each other in parallel in the longitudinal direction, and the absorbent body 10 is interposed therebetween. Further, the back waist portion 30 is fixed to the one end portion 10a of the absorbent body 10, and the abdominal waist portion 40 is fixed to the other end portion 10b, and its outer shape is formed in a substantially H shape in plan view. In other words, the back waist portion 30 is located on one end side of the absorbent body 10, and the front waist portion 40 is located on the other end side of the absorbent body 10.

Further, from this state, the absorbent main body 10 is folded at the center of the diaper 1 in the longitudinal direction (i.e., the longitudinal direction) (the longitudinal end of the diaper 1 in the stretched state and the center of the other end) as a bent position. In two fold. In the state of being folded in two, the back waist portion 30 and the front waist portion 40 which are opposed to each other are joined and coupled, and the waist portions are formed into a ring shape. In other words, the diaper 1 is connected (joined) to the lateral back side edge portions 30a (corresponding to the back side end portions) of the back side waistline portion 30 and the lateral ventral side edge portions 40a of the ventral waistline portion 40 (corresponding to Formed at both ends of the ventral side). Thereby, a waist opening 1a and a pair formed as shown in FIG. 1 are formed. A diaper 1 in a worn state of the leg opening 1b. Further, in the present embodiment, the upper end 40b of the longitudinal abdominal waistline portion 40 is aligned with the upper end 30b of the longitudinal back waist portion 30 in the longitudinal direction at the position in the longitudinal direction, and the back side is coupled. The rim portion 30a and the ventral side edge portions 40a. In other words, the upper end of the back side edge portion 30a and the upper end of the front side edge portion 40a are joined.

Hereinafter, three accessories will be described in order: the absorbent main body 10, the abdominal waistline portion 40, and the back waistline portion 30.

The absorbent body 10 corresponds to the wearer's ankle (underarm) to absorb excrement such as urine. As shown in FIG. 2, the absorbent main body 10 has a rectangular shape in plan view, and the longitudinal direction (longitudinal direction) is provided along the longitudinal direction.

The absorbent body 11 is provided in the absorbent body 10. The absorber 11 is a member (absorbent core) in which a liquid absorbing material is laminated, and can absorb excrement such as urine. The absorbent body 11 has pulp (pulp fibers) and an absorbent polymer (SAP).

Further, the absorber 11 of the present embodiment has a substantially hourglass shape in plan view. In other words, the absorbent body 11 in the extended state is attached to the central portion of the longitudinal direction of the absorbent body 11 (specifically, closer to the side of the front waist portion 40 than the center), and has a recessed portion 12 recessed toward the inner side in the lateral direction. Therefore, in the central portion (recessed portion 12), the width of the absorber 11 is the narrowest. On the other hand, at the longitudinal end portion of the absorbent body 11 (the back side upper end 13 of the absorbent body 11 and the ventral upper end 14), there is not provided a recessed portion 12 at which the upper end 13 and the abdomen of the back side of the absorbent body 11 The side upper end 14) has the widest width of the absorbent body 11 (the widest part). In the present embodiment, the most absorbent body 11 The large width W1 is 120mm.

The absorber 11 is contained in a core clad layer (not shown) made of a liquid permeable sheet (non-woven fabric), and is sandwiched between the top sheet member 24 and the back sheet member 25 in the thickness direction. Further, the top sheet member 24 is a liquid-permeable sheet made of non-woven fabric, and the back sheet member 25 is a two-layer layer composed of a liquid-impermeable leak-proof sheet made of polyethylene or polypropylene and a liquid-permeable outer sheet made of non-woven fabric. A thin sheet of construction.

Further, the both sides of the absorbent main body 10 in the width direction, that is, the pair of side flaps 26 are provided with stretchable leg gathers LG (leg-surrounded stretch portions) along the longitudinal direction. The leg gathers LG are formed of a non-woven fabric and have elastic members (specifically, rubber threads, which are conveniently referred to as LG rubber wires 26a) in the longitudinal direction. Moreover, the leg pleats LG are formed by imparting stretchability to the side flaps 26 by the LG rubber wire 26a.

Further, in the width direction of the absorbent body 10, a pair of leg side wrinkles LSG (stereo wrinkles) are provided on the inner side of the leg gathers LG (side flaps 26). The leg gathers LSG are provided on the skin side of the absorbent body 10, and are responsible for preventing liquid leakage from the gap of the foot. The leg side wrinkle LSG is formed of a non-woven fabric. The leg side wrinkles LSG are provided with vertices 28 at the inner end portions of the leg side wrinkles LSG in the width direction of the absorbent main body 10, and the apexes 28 and the non-woven fabrics which are closer to the outer side than the apexes 28 are formed to be erected. Further, at the apex 28 of the leg side wrinkle LSG, an elastic member (specifically, a rubber thread, which is conveniently referred to as an LSG rubber wire 29) which is stretched in the longitudinal direction is provided.

The ventral waist portion 40 is a sheet-like member corresponding to the abdomen of the wearer. The abdominal waist portion 40 has a rectangular shape in a plan view and a long direction (long side) Direction) is set along the horizontal direction. The ventral waist portion 40 is formed of a non-woven fabric.

The abdominal waist portion 40 is overlapped and joined to the other end portion 10b of the absorbent body 10. The portion of the abdominal waist portion 40 that overlaps the absorbent body 10 is provided at the center portion of the lateral abdominal waist portion 40.

Further, a central portion of the lateral abdominal waist portion 40 and an upper end 40b away from the longitudinal abdominal waist portion 40 (an end that is longitudinally away from the center (the bent position) of the front waist portion 40) is provided. There is a cutting portion (the notch portion 41 in the present embodiment). The notch portion 41 is for causing the diaper 1 not to touch the navel of the wearer or the jig attached to the navel (described in detail below).

The notch portion 41 of the present embodiment has a curved shape that is curved downward in the longitudinal direction. The width W2 of the notch portion 41 in the lateral direction was 85 mm, and the depth D in the longitudinal direction was 15 mm. Further, the width W2 of the notch portion 41 is smaller than the maximum width W1 (120 mm) of the absorbent body 11. Therefore, both side ends 41b of the notch portion 41 are located on the inner side of the side end 15 of the widest portion of the absorbent body 11 in the lateral direction. Further, the width W2 of 85 mm is the width of Fig. 2, and in the actual product, since the product is contracted in the lateral direction by the action of the ventral rubber wire 43 to be described later, the width (the width when the product is viewed in a flat position) becomes 20 to 30 mm. .

Further, in the abdominal waist portion 40, an elastic member (specifically, a rubber thread, which is conveniently referred to as a ventral rubber line 43) which is stretched in the lateral direction is disposed in a plurality of (12) sheets arranged side by side in the longitudinal direction. The ventral rubber wire 43 is fixed to the nonwoven fabric by bonding with a bonding agent. Further, by providing the lateral waist portion 40 with lateral stretchability, the waist opening 1a of the diaper 1 is stretched. Shrinkage. Hereinafter, each of the twelve abdominal rubber wires 43 will be described.

The two side portions 40c in the lateral direction of the notch portion 41 are provided with two rubber threads (corresponding to an elastic member (first elastic member). This is referred to as a notch surrounding rubber line 44). That is, both of the two notched rubber cords 44 are disposed above the lower end 41a of the notch portion 41 in the longitudinal direction. Moreover, the rubber strands 44 around the two notches are arranged side by side in the longitudinal direction.

The rubber wire 44 around each notch extends from the both side portions 40c to the front side edge portions 40a. Further, "the extension from the both side portions 40c to the front side edge portions 40a" means extending at least from the both side portions 40c to the front side edge portions 40a, not the both side portions 40c as the starting point and the ventral side portions. The edge 40a is the end point. In the present embodiment, as shown in FIG. 2, the rubber line 44 around the notch passes over the ventral side edge portions 40a and reaches the outermost end of the ventral waistline portion 40. In other words, the rubber wire 44 around the notch extends in a lateral direction from one of the front edge portions 40a (the outer end) to the other, and may be a rubber wire having a discontinuous portion in the notch portion 41.

Further, the diameter of the rubber wire 44 around the notch was 470 dtex, and the stretch ratio was 2.6 (see Fig. 3).

Further, four rubber threads (corresponding to the second elastic member, which is conveniently referred to as an intermediate rubber wire 46) are provided below the longitudinal direction of the notch portion 41 and above the longitudinal direction of the absorbent body 11. That is, any of the four intermediate rubber wires 46 is disposed in the longitudinal direction below the lower end 41a of the notch portion 41, and is disposed above the ventral upper end 14 of the absorbent body 11 in the longitudinal direction. Moreover, four intermediate rubber wires 46 are arranged side by side in the longitudinal direction.

Each of the intermediate rubber wires 46 extends from one side of the front side edge portions 40a to the other in the lateral direction, and is not provided with a discontinuous portion such as the rubber wire 44 around the notch. Further, "extending from one of the ventral side edges 40a to the other" means extending at least from one side to the other, and not one of the starting point and the other end. In the present embodiment, as shown in FIG. 2, the intermediate rubber wire 46 passes over the ventral side edge portions 40a and reaches the outermost end of the abdominal waistline portion 40.

Further, the upper two intermediate rubber wires 46 (referred to as the upper middle rubber wire 47) and the lower two intermediate rubber wires 46 (referred to as the lower intermediate rubber wire 48) among the four intermediate rubber wires 46 are different rubber wires. That is, the diameter of the two upper middle rubber wires 47 is 470 dtex, and the stretching magnification is 3.2 (refer to FIG. 3). On the other hand, the diameter of the lower middle rubber line 48 is 940 dtex, and the stretching magnification is 3.2 (refer to Fig. 3). As described above, since the diameter of the lower intermediate rubber wire 48 is larger than the diameter of the upper middle rubber wire 47 and the stretching magnification is the same, the elastic force of the lower intermediate rubber wire 48 is larger than that of the upper intermediate rubber wire 47. Therefore, the stretching force of the intermediate rubber line 46 at the uppermost position in the longitudinal direction becomes the smallest among the four intermediate rubber wires 46, and the stretching force of the intermediate rubber wire 46 at the lowermost position in the longitudinal direction becomes the largest among the four intermediate rubber wires 46.

Further, as shown in Fig. 3, the diameter of the rubber line 44 around the notch is the same as or smaller than the diameter of the intermediate rubber wire 46, and the stretch ratio of the rubber wire 44 around the notch is smaller than the stretch ratio of the intermediate rubber wire 46, so that the periphery of the notch is The expansion and contraction force of the rubber wire 44 becomes a telescopic force (rather than the elastic force of any of the intermediate rubber wires 46 among the four intermediate rubber wires 46). small.

Further, in the longitudinal direction, there are six rubber wires (corresponding to a third elastic member, which is conveniently referred to as an absorbent body surrounding rubber wire 49), below the intermediate rubber wire 46. Any of the six absorbent body surrounding rubber wires 49 is disposed longitudinally below the ventral upper end 14 of the absorbent body 11. Further, the rubber wires 49 around the six absorbent bodies are arranged side by side in the longitudinal direction.

The rubber wire 49 around each of the absorbers extends from one of the two side edges 40a in the lateral direction to the other, and the absorbent body 11 is provided with a discontinuous portion. That is, it extends from the position on the absorber 11 to the one of the ventral side edge portions 40a and the other from the position on the absorber 11 to the ventral side edge portions 40a. In addition, "extending from one of the two side edges 40a to the other side" means extending at least from one side to the other, and not one of the starting point and the other end. In the present embodiment, as shown in Fig. 2, the rubber line 49 around the absorbent body passes over the ventral side edge portions 40a and reaches the outermost end of the abdominal waistline portion 40.

Further, the rubber fibers 49 around the upper two of the six rubber fibers 49 around the absorbent body (referred to as the rubber line 50 around the upper absorbent body) and the rubber wires 49 around the lower four absorbent bodies (referred to as the lower absorbent body) The surrounding rubber wires 51) are different rubber wires. That is, the diameter of the rubber line 50 around the two upper absorbent bodies is 940 dtex, and the stretching magnification is 3.6 (refer to Fig. 3). On the other hand, the diameter of the rubber thread 51 around the four lower absorbent bodies was 470 dtex, and the stretching magnification was 3.4 (refer to Fig. 3). Thus, the diameter of the rubber line 50 around the upper absorbent body is larger or equal to the diameter of the other abdominal rubber line 43, and the stretch ratio of the rubber line 50 around the upper absorbent body is higher than that of the other. Since the extension ratio of the ventral rubber cord 43 is large, the ventral rubber cord 43 having the largest expansion and contraction force among the ventral rubber cords 43 of the ventral waistline portion 40 is provided as the rubber cord 50 around the upper absorbent body.

The back waist portion 30 is a sheet-like member corresponding to the back of the wearer. The back waistline portion 30 has a rectangular shape in plan view, and is provided in a growth direction (longitudinal direction) along the lateral direction. The back waist portion 30 is formed of a non-woven fabric. The back waistline portion 30 is overlapped and joined to the one end portion 10a of the absorbent body 10. The portion of the back waist portion 30 that is superposed on the absorbent body 10 is provided at the center portion of the lateral back waist portion 30.

Further, the back waist portion 30 is different from the abdominal waist portion 40 in that a cut portion (notch portion 41) is not provided. The reason for this is that the cutting portion (notch portion 41) is intended to prevent the wearer's navel or the jig attached to the navel from touching the diaper 1.

Further, in the abdominal waist portion 40, an elastic member (specifically, a rubber thread, which is conveniently referred to as a ventral rubber line 43) which is stretched in the lateral direction is arranged in a plurality of (eight) side by side in the longitudinal direction. The ventral rubber wire 43 is fixed to the nonwoven fabric by bonding with a bonding agent. In addition, the lateral waist portion 40 is provided with stretchability in the lateral direction, and the waist opening 1a of the diaper 1 is provided with stretchability. Hereinafter, each of the eight abdominal rubber wires 43 will be described.

Further, in the back waist portion 30, an elastic member (specifically, a rubber thread, which is conveniently referred to as a back side rubber thread 33) which is stretched in the lateral direction is arranged in a plurality of (13) sheets arranged side by side in the longitudinal direction. The back side rubber thread 33 is fixed to the nonwoven fabric by bonding with a bonding agent. Further, by providing the lateral waist portion 30 with lateral stretchability, the waist opening 1a of the diaper 1 is imparted thereto. Scalability.

It has been explained that at the upper end 40b of the abdominal waist portion 40, the rubber line 44 around the notch extends from the both side portions 40c to the ventral side edge portions 40a, but at the upper end 30b of the back side waist portion 30, the back side rubber line 33 is also One of the back side edge portions 30a extends to the other side. Further, at the upper end 40b, the ventral upper end elastic portion R1 having elasticity is formed by extending the rubber wire 44 around the notch from the both side portions 40c to the ventral side edge portions 40a, and at the upper end 30b, by the back side rubber line 33 The back side upper end elastic region R2 having elasticity is formed to extend from one of the back side edge portions 30a to the other. Further, as shown in Fig. 4, the front side upper end elastic region R1 and the back side upper end elastic region R2 are continuous with the joined abdominal side edge portions 40a and the back side edge portions 30a. Further, in the present embodiment, the back side rubber line 33 constituting the back upper end elastic region R2 is the back side rubber line 33 located at the uppermost portion among the 13 pieces, and the back side rubber line 33 located at the second side from the top, back The side upper end elastic region R2 is composed of two rubber wires similarly to the ventral upper end elastic region R1.

Further, under the two back side rubber wires 33, eleven back side rubber wires 33 are provided, and the upper three back side rubber wires 33 are rubber wires having no discontinuous portions, and the lower eight back sides The rubber thread 33 is a rubber thread having a discontinuous portion.

===The effectiveness of the diaper 1 of the present embodiment ===

As described above, the diaper 1 of the present embodiment has a longitudinal direction and a lateral direction intersecting the longitudinal direction, and includes an absorbent body that absorbs excrement The absorbent main body 10 of 11 is a back waist portion 30 located on one end side of the absorbent main body 10, and a diaper 1 located at the abdominal waist portion 40 on the other end side of the absorbent main body 10. Further, in the central portion of the lateral abdominal waist portion 40 and the upper end 40b of the longitudinal abdominal waist portion 40, a cutting portion 41 is provided, and the width W2 of the cutting portion 41 is smaller than the maximum width W1 of the absorbent body 11, The both side portions 40c in the lateral direction of the cutting portion 41 are provided with a rubber wire 44 around the notch in the lateral direction. Therefore, it is possible to realize the diaper 1 having an appropriate structure for the diaper 1 not to touch the navel or the jig attached to the navel.

When the newborn wears the diaper 1, especially because the newborn's navel is moist, it is required that the navel does not touch the diaper 1. Moreover, the navel of the newborn is sometimes equipped with a jig for preventing bleeding or the like. In this case, it is also required that the jig attached to the navel does not touch the diaper 1.

On the other hand, in the present embodiment, the notch portion 41 is provided in the center portion of the lateral abdominal waist portion 40 and the upper end 40b of the longitudinal abdominal waist portion 40 in the longitudinal direction. Therefore, the diaper 1 can be prevented from touching the navel or the like or the jig attached to the navel. In addition, since the operator knows that the diaper 1 does not touch the navel (the mother or the like puts the diaper 1 on), it is possible to pay attention to the contact of the diaper 1 with the navel and the like to avoid the diaper 1 being sufficiently pulled up. The state of affairs. That is, the operator can surely pull the diaper 1 up to a predetermined position. Therefore, a gap is not formed between the skin and the diaper 1, and leakage of excrement can be prevented.

Further, the pants-type diaper described in Patent Document 1 is also provided with a notch at the upper end of the abdominal waist portion, but is not disclosed in Patent Document 1. Recognizing the above-mentioned problems, the notch is provided for other purposes. This is because the newborn is not wearing a pants-type diaper, and thus the problem that the pants-type diaper does not touch the wet navel or the jig is not recognized.

Thus, the width of the notch is formed to be unnecessarily wide in order to avoid contact with the navel. Therefore, the area of the notch is too large, so that the area of the portion (non-woven fabric) that presses the wearer (skin) is reduced, and the conformability of the upper end of the abdominal waist portion to the wearer (skin) of the diaper is deteriorated.

On the other hand, in the present embodiment, the width W2 of the notch portion 41 is made smaller than the maximum width W1 of the absorbent body 11, and the width of the notch portion 41 is set to a minimum width in which the diaper 1 does not touch the navel or the jig. Therefore, the upper end 40b of the abdominal waistline portion 40 is excellent in the conformability to the wearer (skin) of the diaper 1. Further, in the present embodiment, since the both side portions 40c of the notch portion 41 are provided with the notched rubber wire 44, the upper end 40b is applied to the wearer (skin) of the diaper 1 by the elastic force of the rubber wire 44 around the notch. The stickers are further improved. In other words, if the rubber wire 44 around the notch is not provided, the both side portions 40c may be rolled up, and by providing the rubber wire 44 around the notch, the both side portions 40c can easily follow the skin.

Even if it is provided to prevent the navel or the jig from coming into contact with the notch portion of the diaper, if the wearability to the wearer (skin) of the diaper is poor, the diaper offset makes it possible for the diaper to hit the navel or the jig. In the present embodiment, in addition to the notch portion 41, the nipple 1 is provided with the upper end 40b (particularly, the both side portions 40c of the notch portion 41) by providing the notched rubber line 44 on both side portions 40c. In order to make diapers 1 Do not touch the appropriate configuration of the navel or the clamp attached to the navel.

Further, in the present embodiment, the intermediate rubber wire 46 is provided below the longitudinal direction of the notch portion 41, and the intermediate rubber wire 46 extends from one side of the front side edge portions 40a to the other in the lateral direction.

As described above, the rubber wire 44 around the notch is provided on both side portions 40c of the notch portion 41, so that the conformability of the upper end 40b to the wearer (skin) of the diaper 1 is improved, but the rubber wire 44 around the notch is provided with a notch portion. The discontinuous portion is generated in 41, and the conformability of the portion in which the notch portion 41 is provided is deteriorated. Therefore, in the present embodiment, in order to assist the cut portion, the intermediate rubber wire 46 provided under the notch portion 41 is extended in the lateral direction from one of the front side edge portions 40a to the other. That is, the intermediate rubber wire 46 is not caused to have a discontinuous portion such as the rubber wire 44 around the notch. Therefore, the conformability to the wearer (skin) of the diaper 1 can be further improved. Further, since the intermediate rubber wire 46 is present above the ventral upper end 14 of the absorbent body 11 (the waist side), the absorbent body 11 can be placed along the wearer (skin), and excretion can be prevented from leaking out. Further, if the intermediate rubber wire 46 is not present, the ventral side has a gap and becomes a state in which the sexual organ is visible, and this state can be suppressed.

Further, in the present embodiment, the expansion and contraction force of the rubber wire 44 around the notch is smaller than the expansion and contraction force of the intermediate rubber wire 46.

As described above, in the both side portions 40c of the notch portion 41, the notched rubber line 44 is provided in order to improve the conformability of the upper end 40b, but from the viewpoint of the convenience when the diaper 1 is worn by the wearer, The expansion and contraction force of the rubber line 44 around the notch must be somewhat suppressed. system. Therefore, in the present embodiment, the expansion and contraction force of the rubber wire 44 around the notch is made smaller than the expansion and contraction force of the intermediate rubber wire 46. Thereby, when the diaper 1 is worn by the wearer, the upper end 40b of the abdominal waistline portion 40 is easily enlarged, and the convenience of wearing the diaper 1 can be improved (the diaper 1 can be smoothly worn). Moreover, the skin can be prevented from leaving a rubber mark, and the excessive shrinkage around the waist can be avoided to cause the notch portion 41 to be rolled up.

Further, in the present embodiment, the number of the rubber wires 44 around the notch (two pieces) is smaller than the number of the intermediate rubber wires 46 (four pieces).

As described above, the width of the notch portion 41 is set to a minimum width for the diaper 1 not to touch the navel or the jig. However, in the present embodiment, the depth of the notch portion 41 is also minimized. That is, among the total of six of the notched rubber line 44 and the intermediate rubber line 46, only two of the number less than half are used as the notched rubber line 44. Therefore, the conformability of the diaper 1 to the wearer (skin) can be further improved, and the diaper 1 can be prevented from touching the navel or the jig attached to the navel. Therefore, the diaper 1 has a more appropriate configuration for the diaper 1 not to touch the navel or the jig attached to the navel.

Further, in the present embodiment, the elastic force of the intermediate rubber wire 46 which is located at the uppermost position in the longitudinal direction among the plurality of intermediate rubber wires 46 is the smallest among the plurality of intermediate rubber wires 46. Therefore, when the diaper 1 is worn by the wearer, the upper end 40b of the abdominal waistline portion 40 is easily enlarged, and the convenience when the diaper 1 is worn can be improved (the diaper 1 can be smoothly worn).

Moreover, in the present embodiment, the intermediate rubber line is in the longitudinal direction. Further, an absorbent body surrounding rubber line 49 is provided, and the rubber line 49 around the absorbent body extends from one side of the front side edge portions 40a to the other side in the lateral direction, and further has a discontinuous portion on the absorbent body 11, and Among the plurality of intermediate rubber wires 46, the elastic force of the intermediate rubber wire 46 located at the lowermost position in the longitudinal direction becomes the largest among the plurality of intermediate rubber wires 46. Therefore, since the stretching force of the intermediate rubber wire 46 closest to the absorbent body 11 is maximized, the absorbent body 11 can be appropriately brought into contact with the wearer's skin without a gap.

In the present embodiment, the abdomen in the lateral direction of the abdominal waist portion 40 is set in a state where the upper end 40b of the abdominal waist portion 40 is aligned in the longitudinal direction and the upper end 30b of the back waist portion 30 is aligned in the longitudinal direction. The side edge portions 40a of the side edge portions 40a and the back waist portion 30 are coupled to each other in the lateral direction. Further, at the upper end 40b of the abdominal waist portion 40, the rubber portion 44 around the notch extends from the both side portions 40c to the ventral side edge portions 40a, and an elastic upper end elastic region R1 is formed, and the back waist portion is formed at the back side. The upper end 30b of the 30 is extended from one side of the back side edge portion 30a to the other side by the back side rubber line 33, and has a resilient back upper end elastic region R2, a ventral upper end elastic region R1 and a back side upper end elastic region. R2 is continuous with the joined ventral side edge portions 40a and the back side edge portions 30a.

Therefore, when the wearer puts on the diaper 1, the ventral upper end elastic region R1 and the back side upper end elastic region R2 are interlocked, so that the diaper 1 can be smoothly put on. In particular, in the case where the wearer is a newborn, the diaper 1 is put on the wearer's lying state. At this time, the operator sees only the state of the ventral waist portion 40 in the ventral waist portion 40 and the back waist portion 30 of the diaper 1 so that the diaper 1 is put on (the back waist portion 30 is not visible). The state allows the diaper 1 to be put on. Even if the back waist portion 30 is not visible, the back upper end elastic region R2 is automatically pulled up in conjunction with the ventral upper end elastic region R1 as long as the upper ventral upper end elastic region R1 is pulled up. Therefore, the diaper 1 can be put on smoothly.

Further, since the upper end 40b of the abdominal waist portion 40 is aligned with the upper end 30b of the back waist portion 30 in the longitudinal direction, it is possible to prevent the back side from protruding upward (jumping out) so that the back side does not Wear it by accidentally folding it in.

===Other implementations ===

The above embodiments are intended to be illustrative of the present invention and are not intended to limit or explain the invention. The present invention may be modified or improved without departing from the spirit thereof, and the equivalents thereof may of course be included in the present invention.

In the above embodiment, the pants-type diaper has been described as a disposable diaper, but the invention is not limited thereto. For example, a belt type diaper is also available. Further, in the above-described embodiment, the disposable diaper-type pants diaper is used, and the two end portions and the back end portions are exemplified by the ventral side edge portions 40a that are connected to each other (joined) and The back side edge portions 30a are not limited thereto. For example, in the case where the disposable diaper is a belt type diaper, both ends of the front side and the back side of the ventral side may have a ventral waist portion or a back waist portion at both ends in the lateral direction.

Further, in the above embodiment, the diaper 1 is a so-called three-piece type and is divided into three parts. That is, the absorbent main body 10, the back waistline portion 30, and the abdominal waistline portion 40 are each an accessory. However, it is not limited to this, paper The diaper 1 is composed of two fitting members (for example, the back waist portion 30 and the abdominal waist portion 40 are integrally formed, and the integrally formed accessory is provided with the absorbent body 10), and the three portions are integrated. Ground settings are also available.

The diaper 1 of the above-described embodiment is intended to be worn by a newborn, but is not limited thereto, and may be worn by an older baby or a child. In addition, it is also possible to use an adult such as a child or a large person such as an elderly person as a wearing object.

In the above-described embodiment, the rubber member (the back side rubber thread 33 and the abdominal rubber line 43) is exemplified as the elastic member. However, the present invention is not limited thereto, and any member having elasticity may be used. For example, an elastic sheet can also be used.

Further, in the above-described embodiment, the notch portion 41 is exemplified as the cutting portion, but the invention is not limited thereto. For example, as shown in the upper diagram of FIG. 5, the cut-in portion 61 may be used. The cut-in portion 61 is attached to the wearer before putting on the diaper 1 (when the product is laid flat, etc.), and is pulled apart by the rubber line 44 around the notch, but is further expanded when the wearer puts on the diaper 1 and puts on it ( turn on). Therefore, the cut-in portion 61 also serves to prevent the navel or the like from coming into contact with the diaper 1. The difference from the notch portion 41 of the cut portion 61 is that an unnecessary object (cut portion) is generated after the cutting step with respect to the notch portion 41, and the point where the cut portion 61 does not occur. Such a cut-in portion 61 does not cause such an unnecessary object, and is advantageous in that the manufacture of the diaper 1 is simplified. On the other hand, the notch portion 41 makes it easy for the operator to recognize that the diaper 1 does not touch the navel or the like, and it is advantageous in that the diaper 1 can be surely pulled up to a predetermined position.

Further, the shape of the notch portion 41 is not limited to the shape as shown in FIG. 2. For example, as shown in the lower diagram of FIG. 5, it may have a rectangular shape. In addition, FIG. 5 is a schematic view showing a change of the cutting portion.

Further, the rubber thread having the largest stretching force among the abdominal rubber wires 43 of the abdominal waist portion 40 may be the rubber rubber line 44 around the notch, the intermediate rubber wire 46, and the intermediate rubber wire 46 among the rubber wires 49 around the absorbent body.

Since the intermediate rubber line 46 is located between the rubber line 44 around the notch and the rubber line 49 around the absorbent body, the neck portion of the waist portion between the navel and the upper buttocks is pushed. Further, since the neck portion is the portion where the gap is most likely to occur due to the necking, the intermediate rubber thread 46 is the rubber thread having the largest stretching force, that is, the diaper 1 can be appropriately applied to the wearer (skin). Moreover, it is also possible to prevent the diaper 1 from slipping off. Further, the expansion and contraction force of the rubber wire 49 around the absorbent body that hits the leg is reduced, and it is possible to prevent the leg from leaving a rubber mark.

Further, as shown in Fig. 6, at the end 44a of the rubber wire 44 around the notch closest to the notch portion 41, the bonding agent is not applied, and the rubber wire 44 around the notch is joined to the abdomen by a bonding agent applied to the outside of the end 44a. The side waist portion 40 can also be used. Further, Fig. 6 is a schematic view showing a portion where the rubber wire 44 around the notch is coated with a portion of the bonding agent and a portion where the bonding is not applied (the portion to which the bonding agent is applied is shown by the thick line portion of the rubber wire 44 around the notch).

When the diaper 1 is manufactured, the two notched rubber wires 44 are joined and fixed to the abdominal waist portion 40, and the abdominal waist portion 40 is cut to form the notch portion 41. That is, first, the joint agent will be from the ventral side A continuous (non-discontinuous portion) rubber thread extending from one of the other 40a (the outer end) to the other side is joined to the abdominal waist portion 40. At this time, after the notch portion 41 is formed, the bonding agent is not applied at the position which is the end 44a and the inner portion is not applied from the position, and the bonding agent is applied to the portion other than the bonding agent portion of the rubber wire 44 around the notch. Then, the abdominal waist portion 40 is cut to form the notch portion 41.

In this case, since the bonding agent is not applied to the end 44a, when the abdominal waist portion 40 is cut, the end 44a is slightly moved toward the lateral outer side (opposite side of the notch portion 41) by the contraction of the rubber wire 44 around the notch. Therefore, it is possible to prevent the rubber cord 44 around the notch from being exposed at the notch portion 41 (if it is exposed, not only the look is not good, but also the end 44a hits the skin and the touch is not good).

1‧‧‧ diapers

1a‧‧‧waist opening

1b‧‧‧ leg opening

10‧‧‧Absorbable ontology

30‧‧‧ Back side waist

40‧‧‧ Ventral waist circumference

Claims (10)

A disposable diaper having a longitudinal direction and a lateral direction intersecting the longitudinal direction, and comprising: an absorbent main body having an absorbent body for absorbing excrement; a back side waist portion located at one end side of the absorbent main body; a ventral waist portion on the other end side of the absorbent body; wherein a cutting portion is provided at an upper end of the front waist portion of the front waist portion and the longitudinal waist portion of the longitudinal waist portion The width in the lateral direction is smaller than the maximum width of the absorbent body, and the elastic members along the lateral direction are provided on both side portions of the cutting portion in the lateral direction. A disposable diaper according to claim 1, wherein the elastic member is a first elastic member, and a second elastic member is provided below the longitudinal direction of the cutting portion, the second elastic member being from the ventral side One of the two end portions of the waist portion of the waist portion extending in the lateral direction extends to the other side. A disposable diaper according to claim 2, wherein the first elastic member has a telescopic force smaller than that of the second elastic member. The disposable diaper according to claim 2 or 3, wherein the first elastic member extends from the both side portions to the front end portions of the front side, and the number of the first elastic members is smaller than the second elastic member The number of articles is small. A disposable diaper as claimed in claim 2 or 3, wherein the second elastic member is disposed in parallel with the plurality of longitudinal directions And a plurality of the second elastic members of the plurality of the second elastic members located at the uppermost one of the longitudinal directions are the smallest of the plurality of the second elastic members. A disposable diaper according to claim 5, wherein a third elastic member is provided below the second elastic member in the longitudinal direction, and the third elastic member is from one of the two end portions of the front side And extending to the other side along the lateral direction, and having a discontinuous portion on the absorbent body, wherein a plurality of the second elastic members of the plurality of second elastic members located at a position lower than the longitudinal direction are a plurality of the second elastic members The largest of the components. A disposable diaper according to claim 2 or 3, wherein a third elastic member is provided below the second elastic member in the longitudinal direction, the third elastic member being from the ventral both ends One of the elastic members extending from the lateral direction to the other side and having a discontinuous portion on the absorbent body is provided in the elastic member of the front waist portion, and the elastic member having the largest stretching force is the first elastic member to the third elastic portion. The aforementioned second elastic member among the members. A disposable diaper according to any one of claims 1 to 3, wherein said lateral ventral both end portions of said ventral waist portion and said lateral back side portions of said back side waist portion are Connected. Disposable diapers, as claimed in claim 8, wherein The front end portion and the back end portion are connected to each other in a state in which the longitudinal position of the upper end of the front waist portion is aligned with the longitudinal position of the upper end of the back waist portion. At the upper end of the front waist portion, the elastic member is extended from the both side portions to the front end portions of the front side to form an elastic upper end elastic region at the upper end of the back waist portion By extending the elastic member from one of the opposite end portions to the other side, an elastic upper back elastic region is formed, and the ventral upper end elastic region and the back upper end elastic region are coupled to each other. Both the front end portions of the front side and the rear end portions of the back side are continuous. The disposable diaper according to any one of claims 1 to 3, wherein the end of the elastic member having the side portions of the cutting portion closest to the cutting portion is not coated with a bonding agent. The elastic member is joined to the front waist portion by an adhesive agent applied to the other end.