TWI657806B - Disposable diapers - Google Patents

Abstract

A disposable diaper having a longitudinal direction and a transverse direction crossing the longitudinal direction, and includes an absorbent body including an absorbent body for excrement, a back waist portion on one end side of the absorbent body, and The abdomen waist portion on the other end side of the absorptive main body is characterized in that a cutting portion is provided at a central portion of the abdomen waist portion in the transverse direction, that is, an upper end of the abdomen waist portion in the longitudinal direction. The width in the lateral direction is smaller than the maximum width of the absorbent body, and elastic members are provided in both sides of the cutting portion in the lateral direction along the lateral direction.

Description

Disposable diapers

The present invention relates to disposable diapers.

Conventionally, disposable diapers have been widely used for children and the like. The disposable diaper is provided with an absorbent main body including an absorbent body for absorbing excrement, a backside waist portion on one end side of the absorbent body, and a belly waist portion on the other end side of the absorbent body.

[Advanced technical literature] [Patent Literature]

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

When a newborn is wearing a disposable diaper, the newborn's navel is wet, so it is required that the navel does not touch the disposable diaper. In addition, the newborn's belly button has a clip to prevent bleeding and the like. With. In this case, it is required that the clamp mounted on the navel does not touch the disposable diaper.

The present invention has been made in view of the problems as described above, and an object thereof is to provide a disposable diaper having an appropriate structure so that the disposable diaper does not touch the navel or the like.

The main invention for achieving the above-mentioned object is a disposable diaper having a longitudinal direction and a transverse direction intersecting the longitudinal direction, and includes an absorbent body having an absorbent body for absorbing excrement, and one end side of the absorbent body. A back waistline portion and a belly waistline portion on the other end side of the absorbent body; characterized in that at the center of the belly waistline portion in the horizontal direction and the upper end of the belly waistline portion in the vertical direction, A cutting portion is provided. The width of the cutting portion in the lateral direction is smaller than the maximum width of the absorber, and elastic members are provided along both sides of the cutting portion in the lateral direction.

Other features of the present invention are clarified from the description of the present specification and the accompanying drawings.

According to the present invention, it is possible to realize Disposable disposable diapers with proper structure that do not touch the navel, etc.

1‧‧‧ diapers

1a‧‧‧ Waist opening

1b‧‧‧ leg opening

10‧‧‧ Absorptive body

10a‧‧‧One end

10b‧‧‧ the other end

11‧‧‧ Absorber

12‧‧‧ Depression

13‧‧‧ dorsal top

14‧‧‧ ventral upper end

15‧‧‧ side

24‧‧‧Top sheet member

25‧‧‧Back sheet member

26‧‧‧ Flanks

26a‧‧‧LG rubber cord

28‧‧‧ Vertex

29‧‧‧LSG rubber thread

30‧‧‧Back waist

30a‧‧‧Two dorsal edges

30b‧‧‧Top

33‧‧‧Back side rubber thread

40‧‧‧ Ventral waistline

40a‧‧‧ ventral two edges

40b‧‧‧upper

40c‧‧‧ both sides

41‧‧‧Notch

41a‧‧‧bottom

41b‧‧‧side

43‧‧‧ Ventral rubber thread

44‧‧‧Rubber thread around the notch

44a‧‧‧end

46‧‧‧Intermediate rubber thread

47‧‧‧Upper middle rubber line

48‧‧‧Bottom middle rubber line

49‧‧‧Rubber thread around absorber

50‧‧‧Rubber thread around the upper absorber

51‧‧‧Rubber thread around the lower absorbent body

61‧‧‧cut-in department

LG‧‧‧ Leg Wrinkles

LSG‧‧‧ Leg Side Wrinkles

R1‧‧‧ Elastic region on the ventral upper end

R2‧‧‧ Elastic area on the back side

FIG. 1 is a perspective view of a diaper 1 according to this embodiment.

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

FIG. 3 is a schematic diagram of the diameter and extension magnification of the ventral rubber line 43.

FIG. 4 is a stereoscopic image diagram showing the continuous state of the abdominal upper end elastic region R1 and the dorsal upper end elastic region R2 in the connected two ventral edge portions 40a and the dorsal lateral edge portions 30a.

FIG. 5 is a schematic diagram showing changes in a cutting portion.

FIG. 6 is a schematic diagram of the portion where the adhesive is applied and the portion not applied to the rubber wire 44 around the notch.

The description of this specification and the drawings clarifies at least the following matters.

A disposable diaper capable of realizing a disposable diaper having a longitudinal direction and a transverse direction intersecting the longitudinal direction, and having an absorptive main body including an absorbent for absorbing excrement, a back waist portion on one end side of the absorptive main body, and A ventral waistline on the other end of the absorbent body; A cutting portion is provided at a central portion of the abdominal waist portion in the horizontal direction and at an upper end of the abdominal waist portion in the vertical direction. The cutting portion has a width in the lateral direction smaller than a maximum width of the absorbent body. Both lateral portions of the horizontal direction are provided with elastic members along the horizontal direction.

According to such a disposable diaper, a disposable diaper having a proper structure so that the disposable diaper does not touch the navel can be realized.

In the disposable diaper, it is preferable that 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 connected to One of the two ends on the ventral side of the lateral direction extends to the other along the lateral direction.

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

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

According to such a disposable diaper, the convenience when wearing the disposable diaper can be improved.

The disposable diaper is preferably such that the first elastic member extends from the two side portions to the both end portions of the abdominal side, and the number of the first elastic members is greater than the number of the second elastic members. less.

According to such a disposable diaper, a disposable diaper having an appropriate structure for preventing the disposable diaper from touching the navel and the like can be realized.

In the disposable diaper, it is preferable that the second elastic member is provided with a plurality of second elastic members arranged side by side in the longitudinal direction, and the elastic force of the second elastic member located above the longitudinal direction among the plurality of second elastic members. The smallest of the plurality of second elastic members.

According to such a disposable diaper, the convenience when wearing the disposable diaper can be improved.

Preferably, the disposable diaper is provided with a third elastic member in the longitudinal direction below the second elastic member, and the third elastic member is arranged along one of the two ends of the ventral side along the aforementioned It extends laterally to the other side and has a discontinuous portion on the absorbent body. The elastic force of the second elastic member located at the bottom of the longitudinal direction among the plurality of second elastic members is the largest among the plurality of second elastic members. of.

According to such a disposable diaper, the absorbent body can be brought into proper contact with the wearer's skin without gaps.

The disposable diaper is preferably disposed below the second elastic member in the longitudinal direction, and provided with the disposable diaper. A third elastic member, which is an elastic member that extends from one of the two ends of the ventral side along the lateral direction to the other, and includes a discontinuous portion on the absorbent body and is provided on the ventral waistline portion Among them, the elastic member having the largest stretching force is the second elastic member from the first elastic member to the third elastic member.

According to such a disposable diaper, the disposable diaper can be appropriately applied to a wearer.

In the disposable diaper, it is preferable that the lateral end portions in the lateral direction of the abdominal waist portion and the lateral end portions in the lateral direction of the back waist portion are connected to each other.

According to such a disposable diaper, the above advantages can be enjoyed in a shorts-type diaper.

The disposable diaper is preferably configured such that the longitudinal position of the upper end of the abdominal waistline portion and the longitudinal position of the upper end of the waistline portion of the backside are consistent with each other. The upper part is connected to the two ends on the back side. The upper end of the waist part on the abdominal side is extended by the elastic member from the two sides to the two ends on the abdominal side to form an elastic upper ventral elasticity. A region is formed at the upper end of the back side waistline portion by extending an elastic member from one of the two ends of the back side to the other to form a back upper end elastic region having elasticity, the ventral upper end elastic region and the aforementioned Upper back elastic zone The two end portions on the ventral side and the two end portions on the back side are continuous.

According to such a disposable diaper, the disposable diaper can be smoothly worn.

In this disposable diaper, it is preferable that the end of the elastic member provided on the lateral side portions of the cutting portion which is closest to the cutting portion is not coated with a bonding agent, and is bonded by coating other than the end. Agent, bonding the elastic member to the abdominal waistline.

According to such a disposable diaper, the problem that the elastic member is exposed at the cutting portion can be prevented.

=== About disposable diapers in this embodiment ===

FIG. 1 is a three-dimensional image diagram of a disposable diaper (hereinafter, simply referred to as diaper 1) according to this embodiment. Fig. 2 is a plan view of the diaper 1 in an extended state. FIG. 3 is a schematic diagram of the diameter and extension magnification of the ventral rubber line 43. FIG. 4 is a stereoscopic image diagram showing the continuous state of the abdominal upper end elastic region R1 and the dorsal upper end elastic region R2 in the connected two ventral edge portions 40a and the dorsal lateral edge portions 30a.

The disposable diaper (hereinafter, referred to simply as diaper 1) according to this embodiment is mainly a shorts-type diaper for a newborn to wear.

In the following description, the vertical and horizontal directions of the diaper 1 are simply referred to as "vertical" and "horizontal", respectively. The side in contact with the wearer is referred to as the "skin side". Also, in the following description, "horizontal" is also referred to as "width direction".

The diaper 1 of this embodiment has a longitudinal direction and a lateral direction as two directions crossing (orthogonal) to each other. The diaper 1 is a so-called three-piece type and includes three accessories. That is, the diaper 1 has, as a first accessory, an absorbent body 10 that absorbs excrement such as urine remaining in the intervening region of the wearer, and a back waist portion 30 covering the back side of the wearer as a second accessory. As the third accessory, there is a ventral waistline portion 40 covering the ventral portion of the same wearer.

In the stretched state of FIG. 2, the back waistline portion 30 and the ventral waistline portion 40 are in a state of being side by side parallel to each other in the longitudinal direction with an interval therebetween, and an absorbent body 10 is interposed therebetween. Moreover, the back side waistline part 30 is fixed to one end part 10a of the absorptive main body 10, and the belly side waistline part 40 is fixed to the other end part 10b, and its external appearance shape is formed substantially H shape in plan view. In other words, the back waistline portion 30 is located on one end side of the absorbent body 10, and the abdominal waistline portion 40 is located on the other end side of the absorbent body 10.

Further, from this state, the absorbent body 10 is folded at the position of the center of the diaper 1 in the longitudinal direction (that is, the longitudinal direction) (the center of the longitudinal end and the other end of the diaper 1 in the extended state) as the bending position. Into two folds. In this folded state, the back waist portion 30 and the abdominal waist portion 40 facing each other are joined and connected, and the waist portions are formed into a ring shape. In other words, the diaper 1 connects (joins) the two lateral back edge portions 30a (corresponding to the back end portions) of the back side waistline portion 30 and the two ventral side edge portions 40a (equivalently) of the abdominal waistline portion 40 On both sides of the ventral side). Thereby, a pair of waist openings 1a and a pair are formed as shown in FIG. The diaper 1 in the wearing state of the leg opening 1b. In addition, in the present embodiment, the upper end 40b of the longitudinal waistline waist portion 40 in the longitudinal direction is aligned with the upper end 30b of the longitudinal waistside waistline portion 30 in the longitudinal direction, and the two backside sides are connected. The edge portion 30a and the two ventral edge portions 40a. In other words, the upper ends of the two back-side edge portions 30 a and the upper ends of the two ventral-side edge portions 40 a are connected.

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

The absorptive body 10 corresponds to the wearer's chin (under the chin), and is used to absorb excrement such as urine. As shown in FIG. 2, the absorptive body 10 has a rectangular shape in plan view, and the longitudinal direction (long-side direction) is provided along the longitudinal direction.

The absorbent body 10 is provided with an absorber 11. The absorbent body 11 is a member (absorbent core) formed by laminating a liquid absorbent material, and can absorb feces such as urine. The absorbent body 11 includes a pulp (pulp fiber) and an absorbent polymer (SAP).

Moreover, the absorber 11 of this embodiment is provided with a substantially hourglass shape in plan view. That is, the absorbent body 11 in the stretched state is provided at a central portion in the longitudinal direction of the absorbent body 11 (specifically, closer to the abdominal waist portion 40 side than the center), and includes a recessed portion 12 that is recessed toward the inner side in the lateral direction. Therefore, the width of the absorbent body 11 becomes the narrowest in the central portion (the recessed portion 12). On the other hand, the recessed portion 12 is not provided at the longitudinal ends of the absorbent body 11 (the upper back end 13 and the ventral upper end 14 of the absorbent body 11), and the end portions (the upper back end 13 and the abdominal end of the absorbent body 11) On the upper side 14), the width of the absorbent body 11 is the widest (the widest part). In this embodiment, the most of the absorber 11 The large width W1 is 120 mm.

The absorbent body 11 is contained in a core cladding (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. In addition, the top sheet member 24 is a liquid-permeable sheet made of a non-woven fabric, and the back sheet member 25 is a two-layer made of a liquid-impermeable leak-proof sheet made of polyethylene or polypropylene and a liquid-permeable exterior sheet made of a non-woven fabric. Structured sheet.

Further, in the portions located on both sides of the absorbent body 10 in the width direction, that is, on the pair of side wings 26, telescopic leg gathers LG (leg circumference telescopic portions) are provided in the longitudinal direction, respectively. The leg wrinkle LG is formed of a non-woven fabric, and is provided with an elastic member that expands and contracts in the longitudinal direction (specifically, a rubber thread, and is conveniently referred to as an LG rubber thread 26a). Furthermore, the LG rubber cord 26a imparts stretchability to the side wings 26 to constitute a leg gather LG.

In the width direction of the absorbent body 10, a pair of leg-side gathers LSG (stereo-pleats) are provided closer to the inside than the leg gathers LG (flank 26). The leg-side wrinkles LSG are provided on the skin side of the absorbent body 10, and play a role of preventing liquid leakage from the foot gap. The leg-side wrinkle LSG is made of non-woven fabric. The leg-side wrinkle LSG is formed on the inner end portion of the leg-side wrinkle LSG in the width direction of the absorbent body 10, and the apex 28 and the nonwoven fabric closer to the outside than the apex 28 are formed to stand up. In addition, an elastic member (specifically, a rubber wire, which is referred to as an LSG rubber wire 29 for convenience) is provided at a vertex 28 of the leg-side wrinkle LSG.

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

The abdominal waistline portion 40 is overlapped and bonded to the other end portion 10 b of the absorbent body 10. The portion of the abdominal waistline 40 that overlaps the absorbent body 10 is provided at the center of the abdominal waistline 40 in the horizontal direction.

In addition, a central portion of the lateral abdominal waistline portion 40 in the horizontal direction is provided at an upper end 40b of the abdominal waistline portion 40 away from the longitudinal direction (an end located on the side far from the aforementioned center (bending position) of the abdominal waistline portion 40 in the longitudinal direction). There is a cutting part (notch part 41 in this embodiment). The cutout portion 41 is used to prevent the diaper 1 from touching the navel of the wearer or a jig attached to the navel (described in detail below).

The notch portion 41 of this embodiment has a curved shape curved downward in the longitudinal direction. The width W2 in the horizontal direction of the notch portion 41 is 85 mm, and the depth D in the vertical direction is 15 mm. The width W2 of the cutout portion 41 is smaller than the maximum width W1 (120 mm) of the absorbent body 11. Therefore, both the side ends 41 b of the cutout portion 41 are located inward in the lateral direction than the side ends 15 of the widest portion of the absorber 11. In addition, the width W2 of 85 mm is the width of FIG. 2. In an actual product, the width of the product (the width when the product is viewed horizontally) becomes 20 to 30 mm because the product shrinks in the lateral direction by the action of the ventral rubber thread 43 described later. .

Moreover, in the abdominal waistline part 40, the elastic member (specifically, a rubber thread, for convenience, it calls the ventral rubber thread 43) along the horizontal direction is arrange | positioned so that it may arrange several (12) side by side in the longitudinal direction. The ventral rubber thread 43 is bonded and fixed to the nonwoven fabric with an adhesive. In addition, the lateral waist elasticity is imparted to the abdominal waist portion 40, and the waist opening 1a of the diaper 1 is extended. Shrinking. Hereinafter, each of the twelve ventral rubber threads 43 will be described.

The two lateral sides 40c of the notch portion 41 are provided with two rubber threads (corresponding to an elastic member (first elastic member). For convenience, this is called a notch surrounding rubber thread 44). That is, the two rubber lines 44 around the notch are both provided in a longitudinal direction above the lower end 41 a of the notch portion 41. In addition, the two rubber lines 44 around the notches are arranged side by side in the longitudinal direction.

The rubber lines 44 around each notch extend from the two side portions 40c to the two side portions 40a on the ventral side. In addition, "extending from both side portions 40c to the aforementioned two ventral edge portions 40a" means extending from at least the both side portions 40c to the aforementioned ventral both edge portions 40a, and does not start with the both side portions 40c and the ventral two The edge portion 40a is intended to be an end point. In this embodiment, as shown in FIG. 2, the rubber line 44 around the notch extends beyond the two ventral edge portions 40 a and reaches the outermost end of the ventral waistline portion 40. Further, in other words, the rubber thread 44 around the notch extends from one side to the other on both sides of the ventral edge portion 40a (the outer side end) in the lateral direction, and can also be said to be a rubber thread having a discontinuous portion in the notch 41.

The diameter of the rubber wire 44 around the notch is 470 dtex, and the stretch ratio is 2.6 (see FIG. 3).

In addition, four rubber threads (corresponding to a second elastic member. For convenience, referred to as an intermediate rubber thread 46) are provided below the longitudinal direction of the cutout portion 41 and above the longitudinal direction of the absorbent body 11. That is, each of the four intermediate rubber threads 46 is provided below the lower end 41 a of the cutout portion 41 in the longitudinal direction, and is provided above the ventral upper end 14 of the absorbent body 11 in the longitudinal direction. In addition, the four middle rubber wires 46 are arranged side by side in the longitudinal direction.

Each of the intermediate rubber wires 46 extends from one side to the other of the two ventral edge portions 40 a along the lateral direction, and is not provided with a discontinuous portion such as the rubber wire 44 around the notch. In addition, "extending from one side to the other side of the two ventral edge portions 40a" means extending from at least one side to the other, and does not mean that one side is the starting point and the other side is the end point. In the present embodiment, as shown in FIG. 2, the middle rubber line 46 extends beyond the two ventral edge portions 40 a and reaches the outermost end of the ventral waistline portion 40.

The upper two intermediate rubber lines 46 (referred to as the upper intermediate rubber line 47) and the lower two intermediate rubber lines 46 (referred to as the lower intermediate rubber line 48) among the four intermediate rubber lines 46 are different rubber lines. That is, the diameter of the two upper intermediate rubber wires 47 is 470 dtex, and the stretch ratio is 3.2 (see FIG. 3). On the other hand, the diameter of the two lower intermediate rubber wires 48 is 940 dtex, and the stretch ratio is 3.2 (see FIG. 3). In this way, the diameter of the lower intermediate rubber line 48 is larger than the diameter of the upper intermediate rubber line 47 and the stretching ratio is the same. Therefore, the elastic force of the lower intermediate rubber line 48 is greater than that of the upper intermediate rubber line 47. Therefore, the telescopic force of the middle rubber line 46 located at the uppermost part in the longitudinal direction becomes the smallest among the four middle rubber lines 46, and the telescopic force of the middle rubber line 46 located at the lowermost part in the longitudinal direction becomes the largest among the 4 middle rubber lines 46.

Moreover, as shown in FIG. 3, the diameter of the rubber wire 44 around the notch is the same as or smaller than the diameter of the intermediate rubber wire 46, and the stretching magnification of the rubber wire 44 around the notch is smaller than that of the intermediate rubber wire 46. The elastic force of the rubber line 44 becomes smaller than the elastic force of the intermediate rubber line 46 (than the elastic force of any one of the four intermediate rubber lines 46) small.

Further, six rubber threads (corresponding to the third elastic member. For convenience, it is referred to as a rubber thread around the absorbent body 49) are provided below the intermediate rubber threads 46 in the longitudinal direction. Any of the six rubber threads 49 around the absorbent body is provided in a longitudinal direction below the ventral upper end 14 of the absorbent body 11. In addition, the six rubber threads 49 around the absorbent body are arranged side by side in the longitudinal direction.

The rubber threads 49 around each absorbent body extend from one side to the other of the two ventral edge portions 40 a in the lateral direction, and the absorbent body 11 is provided with a discontinuous portion. That is, it extends from the position on the absorbent body 11 to one side of both the ventral side edge portions 40a, and from the position on the absorbent body 11 to the other side of both ventral side edge portions 40a. In addition, "extending from one side to the other side of the ventral two edge portions 40a" means extending from at least one side to the other, and does not mean that one side is the starting point and the other side is the end point. In the present embodiment, as shown in FIG. 2, the rubber line 49 around the absorber extends beyond the two ventral edge portions 40 a and reaches the outermost end of the ventral waistline portion 40.

In addition, among the six absorbent rubber lines 49, the upper two absorbent rubber lines 49 (referred to as the upper absorbent rubber line 50) and the lower four absorbent rubber lines 49 (referred to as the lower absorber) The surrounding rubber lines 51) are different rubber lines. That is, the diameter of the two rubber wires 50 around the two upper absorbers is 940 dtex, and the stretch ratio is 3.6 (see FIG. 3). On the other hand, the diameter of the rubber wires 51 around the four lower absorbent bodies is 470 dtex, and the stretch ratio is 3.4 (see FIG. 3). In this way, the diameter of the rubber line 50 around the upper absorbent body is larger or equal to the diameter of the other ventral rubber lines 43, and the stretch ratio of the rubber line 50 around the upper absorbent body is greater than that of the other rubber lines 50. The stretch ratio of the ventral rubber line 43 is large. Therefore, the ventral rubber line 43 having the largest stretching force among the ventral rubber lines 43 of the ventral waistline portion 40 is the rubber line 50 around the upper absorbent body.

The back waistline portion 30 is a sheet-like member corresponding to the back of the wearer. The back side waistline portion 30 has a rectangular shape in plan view, and is provided with the growth direction (long-side direction) along the lateral direction. The back side waistline portion 30 is formed of a non-woven fabric. The back side waistline portion 30 is overlapped and fixed to one end portion 10 a of the absorbent body 10. A portion of the back side waistline portion 30 that overlaps the absorbent body 10 is provided at a central portion of the back side waistline portion 30 in the horizontal direction.

In addition, unlike the abdominal waist portion 40, the back waist portion 30 is not provided with a cutting portion (notch portion 41). The reason is that the purpose of the cutting portion (notch portion 41) is to prevent the wearer's navel or the jig attached to the navel from touching the diaper 1.

Furthermore, in the abdominal waistline portion 40, a plurality of elastic members (specifically, rubber threads, which are referred to as ventral rubber threads 43 for convenience) are arranged side by side in the longitudinal direction. The ventral rubber thread 43 is bonded and fixed to the nonwoven fabric with an adhesive. In addition, as a result, lateral stretchability is imparted to the abdominal waist portion 40, and stretchability is imparted to the waist opening 1a of the diaper 1. Hereinafter, each of the eight abdominal rubber threads 43 will be described.

In addition, in the back waistline portion 30, a plurality of elastic members (specifically, rubber threads, which are referred to as back side rubber threads 33 for convenience) are arranged side by side in the longitudinal direction so as to have a plurality of (13) side by side. The back-side rubber thread 33 is bonded and fixed to the nonwoven fabric with an adhesive. In addition, the horizontal elasticity is imparted to the back waistline portion 30, and the waistline opening 1a of the diaper 1 is imparted. Scalability.

It has been described that at the upper end 40b of the abdominal waistline portion 40, the rubber line 44 around the notch extends from both side portions 40c to the two ventral edge portions 40a, but at the upper end 30b of the backside waistline portion 30, the backside rubber line 33 also extends from One of the two back side edge portions 30a extends to the other. Further, at the upper end 40b, the elastic rubber region 44 is formed on the upper end 40b by the back-side rubber line 33 by extending the rubber line 44 around the notch from the both side portions 40c to the two ventral edge portions 40a. Extending from one side to the other of the two back side edge portions 30a, a back side upper end elastic region R2 having elasticity is formed. Further, as shown in FIG. 4, the upper abdominal elastic region R1 and the upper abdominal elastic region R2 are continuous to the two ventral edge portions 40 a and the two posterior edge portions 30 a that are connected to each other. In addition, in this embodiment, the back-side rubber line 33 constituting the back-side upper end elastic region R2 is the back-side rubber line 33 located at the top among the 13 and the back-side rubber line 33 located at the second from the top. The upper side elastic region R2 is composed of two rubber threads similar to the upper side elastic region R1.

In addition, 11 back-side rubber threads 33 are provided below the two back-side rubber threads 33. Among them, the top 3 back-side rubber threads 33 are rubber threads having no discontinuities, and the bottom 8 back-side rubber threads. The rubber thread 33 is a rubber thread having a discontinuous portion.

=== Effectiveness of the diaper 1 of this embodiment ===

As described above, the diaper 1 according to this embodiment has a longitudinal direction and a transverse direction crossing the longitudinal direction, and includes an absorbent body for absorbing excrement. The absorptive body 10 of 11, the back side waistline portion 30 on one end side of the absorptive body 10, and the diaper 1 on the abdomen waistline portion 40 on the other end side of the absorptive body 10. Further, a cutting portion 41 is provided at the central portion of the lateral abdominal waistline portion 40 in the horizontal direction and the upper end 40b of the longitudinal abdominal waistline portion 40 in the longitudinal direction. The cutting portion 41 has a lateral width W2 smaller than the maximum width W1 of the absorber 11 The lateral sides 40c of the cutting part 41 are provided with a rubber line 44 around the notch in the horizontal direction. Therefore, the diaper 1 provided with the appropriate structure so that the diaper 1 does not touch the belly button or the jig | tool attached to the belly button can be implement | achieved.

When a newborn is wearing a diaper 1, it is required that the navel does not touch the diaper 1 because the newborn's navel is wet. In addition, the newborn's belly button is sometimes equipped with a jig to prevent bleeding and the like. In this case, it is also required that the jig installed on the navel does not touch the diaper 1.

In contrast, in the present embodiment, a notch portion 41 is provided at the central portion of the lateral abdominal waistline portion 40 in the horizontal direction and the upper end 40b of the longitudinal abdominal waistline portion 40 in the vertical direction. Therefore, the diaper 1 can be prevented from touching the navel or the like or a jig attached to the navel. In addition, the operator knows that the diaper 1 does not touch the navel (a person who wears the diaper 1 on the diaper), so the operator can pay attention to the contact of the diaper 1 to the navel and the like to prevent the diaper 1 from being pulled up sufficiently State of affairs. That is, the operator can surely pull up the diaper 1 to a predetermined position. Therefore, there is no gap between the skin and the diaper 1, and leakage of excrement can be prevented.

In addition, the shorts-type diaper described in Patent Document 1 is also provided with a notch portion at the upper end of the abdominal waist portion, but it is not described in Patent Document 1. Recognizing the aforementioned problem, the notch is provided for other purposes. This is because, in the past, it has hardly been implemented for newborns to wear shorts-type diapers. Therefore, the problem of keeping shorts-type diapers from touching a wet belly button or a clamp has not been recognized.

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

In contrast, in this embodiment, the width W2 of the cutout portion 41 is made smaller than the maximum width W1 of the absorbent body 11, and the width of the cutout portion 41 is set to the minimum width at which the diaper 1 does not touch the navel or the clamp. Therefore, the upper end 40b of the abdominal waistline part 40 becomes a person who has good adherence to the wearer (skin) of the diaper 1. Furthermore, in this embodiment, the notch portion 41 is provided with rubber threads 44 on both sides of the notch portion 41. Therefore, the elastic force of the rubber string 44 around the notch allows the upper end 40b to be worn by the wearer (skin) of the diaper 1. The applicability is further improved. In other words, if the notched surrounding rubber thread 44 is not provided, the both side portions 40c may be rolled up, and by providing the notched surrounding rubber thread 44, the both side portions 40c can easily follow the skin.

Even if it is provided to prevent the belly button or the clip from contacting the cutout portion of the diaper, if the fit to the wearer (skin) of the diaper is poor, the diaper shift will increase the possibility that the diaper will hit the belly button or the clip. In this embodiment, in addition to the notch portion 41, by providing rubber wires 44 around the notch on both side portions 40c, the upper end 40b (especially both side portions 40c of the notch portion 41) is improved in conformability, and the diaper 1 is provided To make diapers 1 Appropriate structure that does not touch the navel or the fixture mounted on the navel.

Further, in the present embodiment, an intermediate rubber line 46 is provided below the longitudinal direction of the cutout portion 41, and the intermediate rubber line 46 extends from one side of the two ventral edge portions 40a in the lateral direction to the other.

As described above, the notch rubber line 44 is provided on both sides 40c of the notch portion 41 to improve the fit of the upper end 40b to the wearer (skin) of the diaper 1. However, the notch rubber line 44 is provided around the notch 41, a discontinuous portion is generated, which deteriorates the conformability of the portion where the cutout portion 41 is provided. Therefore, in the present embodiment, in order to assist the incision portion, the intermediate rubber line 46 provided below the notch portion 41 is extended from one side of the two ventral edge portions 40 a in the lateral direction to the other. That is, the intermediate rubber line 46 is not caused to have a discontinuous portion as if there were notches around the rubber line 44. Therefore, the conformability to the wearer (skin) of the diaper 1 can be further improved. Furthermore, since the middle rubber thread 46 exists above (waist side) the upper side 14 of the abdomen side of the absorbent body 11, the absorbent body 11 can be made to follow the wearer (skin), and leakage of excretion can be prevented. In addition, if the intermediate rubber thread 46 is not present, a gap may be generated on the ventral side and the sexual organ may be seen. This state can also be suppressed.

Moreover, in this embodiment, the elastic force of the rubber wire 44 around the notch is smaller than the elastic force of the intermediate rubber wire 46.

As described above, in order to improve the fit of the upper end 40b, both side portions 40c of the cutout portion 41 are provided with a rubber thread 44 around the cutout. However, from the standpoint of convenience when the diaper 1 is worn by a wearer, The expansion and contraction of the rubber line 44 around the notch must be suppressed to some extent system. Therefore, in this embodiment, the elastic force of the rubber wire 44 around the notch is made smaller than the elastic force of the intermediate rubber wire 46. Accordingly, when the diaper 1 is worn on a wearer, the upper end 40b of the abdominal waist portion 40 can be easily enlarged, and the convenience when the diaper 1 is worn can be improved (the diaper 1 can be worn smoothly). Moreover, it is possible to avoid leaving rubber marks on the skin, and also avoid excessive shrinkage around the waist so that the notch 41 is rolled up.

In addition, in the present embodiment, the number (2) of the rubber lines 44 around the notch is made smaller than the number (4) of the intermediate rubber lines 46.

As described above, the width of the cutout portion 41 is set to the minimum width so that the diaper 1 does not touch the navel or the jig. However, in this embodiment, the depth of the cutout portion 41 is also set to the minimum depth. That is, out of a total of six rubber wires 44 around the notch and the middle rubber wire 46, only two less than half are used as the rubber wires 44 around the notch. 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 a jig mounted on the navel. Therefore, the diaper 1 has a more appropriate structure so that the diaper 1 does not touch the navel or the jig attached to the navel.

Moreover, in this embodiment, the elastic force of the intermediate rubber line 46 located at the uppermost position in the longitudinal direction among the plurality of intermediate rubber lines 46 is made the smallest among the plurality of intermediate rubber lines 46. Therefore, when the diaper 1 is worn on a wearer, it is easy to enlarge the upper end 40b of the abdominal waist portion 40, and the convenience when wearing the diaper 1 can be improved (the diaper 1 can be worn smoothly).

Moreover, in this embodiment, it is longer than the middle rubber line in the longitudinal direction. A lower portion 46 is provided with an absorbent rubber line 49 which extends laterally from one side of the two ventral edge portions 40 a to the other, and further includes a discontinuous portion on the absorbent body 11, and Among the plurality of intermediate rubber lines 46, the telescopic force of the intermediate rubber line 46 located at the bottom in the longitudinal direction becomes the largest among the plurality of intermediate rubber lines 46. Therefore, since the elastic force of the intermediate rubber line 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 addition, in the present embodiment, in a state where the upper end 40b of the abdominal waistline portion 40 is in the vertical position and the upper end 30b of the backside waistline portion 30 is in the vertical position, the belly in the lateral direction of the abdominal waistline portion 40 is aligned. The two side edge portions 40 a and the back side edge portion 30 a in the lateral direction of the back side waistline portion 30 are connected to each other. Furthermore, at the upper end 40b of the abdominal waistline portion 40, an elastic upper abdominal elastic region R1 is formed at the upper waist portion 40b of the abdominal waistline portion 40a. The upper end 30b of 30 is extended from one of the two back edge portions 30a to the other by the backside rubber thread 33, and has a backside upper end elastic area R2, a ventral upper end elastic area R1 and a backside upper end elastic area R2 is continuous between the two ventral side edge portions 40a and the dorsal side edge portions 30a.

Therefore, when the wearer puts on the diaper 1, the upper elastic region R1 on the abdominal side and the upper elastic region R2 on the back side are linked, so that the diaper 1 can be put on smoothly. Especially when the wearer is a newborn, the diaper 1 is put on while the wearer is lying down. At this time, the operator only puts on the diaper 1 in a state where the abdominal waist portion 40 and the back waist portion 30 of the diaper 1 only see the abdominal waist portion 40 (invisible to the back waist portion 30). The diaper 1 is put on), even when the back waist region 30 is not visible, as long as the upper elastic region R1 on the ventral side is pulled up, the upper elastic region R2 on the back side and the upper elastic region R1 on the ventral side are automatically pulled up. Therefore, the diaper 1 can be put on smoothly.

In addition, since the upper end 40b of the abdominal waistline portion 40 is aligned in the longitudinal position with the upper end 30b of the backside waistline portion 30 in the longitudinal position, it is possible to prevent the backside from protruding upward (jump out), so that the backside does not Accidentally fold in and wear.

=== Other implementations ===

The embodiments described above are for the purpose of making the present invention easier to understand, and are not intended to limit and explain the present inventor. The present invention can be changed and improved without departing from the gist thereof, and the present invention may naturally include equivalents thereof.

In the above embodiment, the shorts type diaper has been described as the disposable diaper, but it is not limited to this. For example, a belt-type diaper is also possible. Moreover, in the above-mentioned embodiment, since the disposable diaper is a pant-type diaper, the two ends on the ventral side and the two ends on the back side are exemplified by the two edges on the ventral side 40a and The two back side edge portions 30a are not limited thereto. For example, in the case where the disposable diaper is a belt-type diaper after use, the ventral end portions and the back end portions may be ventral waistline portions or the backside waistline portions may be transversely lateral ends.

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

The diaper 1 of the above-mentioned embodiment is intended for wearing a newborn, but is not limited to this, and it is also possible to wear for an older baby or infant. In addition, children such as elementary school students or older adults may be used as clothing targets.

Furthermore, in the above-mentioned embodiment, the rubber thread (the back-side rubber thread 33 and the ventral-side rubber thread 43) is exemplified as the elastic member, but it is not limited thereto, and any member having elasticity may be used. For example, an elastic sheet may be used.

Moreover, in the said embodiment, although the notch part 41 was mentioned as the cutting part, it is not limited to this. 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 opened before the wearer puts on the diaper 1 (when the product is laid flat, etc.), and is pulled apart by the rubber thread 44 around the gap, but is further expanded when the wearer puts on the diaper 1 and after putting it on ( turn on). Therefore, the cut-in portion 61 also plays a role of preventing the navel and the like from coming into contact with the diaper 1. The difference from the cut-out portion 41 of the cut-in portion 61 is that the cut-out portion 61 does not generate an unnecessary object (cut-off portion) after the cutting step, compared to the cut-out portion 41. Such a cut-in portion 61 does not generate the unnecessary material, and is advantageous in that the manufacturing 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 is provided without touching the belly button and the like, and it is advantageous in that the diaper 1 can be reliably pulled up to a predetermined position.

The shape of the cutout portion 41 is not limited to the shape shown in FIG. 2. For example, as shown in the lower diagram of FIG. 5, a rectangular shape may be sufficient. In addition, FIG. 5 is a schematic diagram showing changes in the cutting portion.

In addition, the rubber thread having the largest stretching force among the abdominal rubber threads 43 of the abdominal waistline portion 40 may be the intermediate rubber thread 46 among the notched rubber thread 44, the intermediate rubber thread 46, and the absorber surrounding rubber thread 49.

Since the middle rubber line 46 is located between the rubber line 44 around the notch and the rubber line 49 around the absorbent body, the neck-down portion of the waist located between the belly button and the upper hip is pressed. The necked portion is a portion where a gap is most likely to occur due to the necked portion. Therefore, if the middle rubber thread 46 is a rubber thread having the largest stretching force, the diaper 1 can be appropriately applied to the wearer (skin). Moreover, the diaper 1 can be prevented from slipping. In addition, the elastic force of the rubber wire 49 around the absorbent body around the legs is reduced, and it is possible to prevent rubber marks from being left on the legs.

Moreover, as shown in FIG. 6, the end 44 a of the rubber wire 44 closest to the notch portion 41 near the notch is not coated with a bonding agent, and the rubber wire 44 around the notch is bonded to the abdomen by a bonding agent applied to the end 44 a. The side waistline portion 40 may be used. In addition, FIG. 6 is a schematic diagram of a portion where the adhesive is applied to the rubber line 44 around the notch and a portion where the adhesive is not applied (the portion where the adhesive is applied is shown as a thick line portion of the rubber line 44 around the notch).

When the diaper 1 is manufactured, two notched rubber threads 44 are bonded and fixed to the abdominal waist portion 40, and then the abdominal waist portion 40 is cut to form the notched portion 41. That is, first, from the ventral sides with the adhesive A continuous (no discontinuous portion) rubber thread extending from one side to the other of the 40a (the aforementioned outer end) is joined to the abdominal waist portion 40. At this time, after the cutout portion 41 is formed, the bonding agent is not applied to the position where the end 44 a is and from the inside, and the bonding agent is applied to the portion of the rubber wire 44 around the cutout-free portion without the bonding agent. Then, the abdominal waist portion 40 is cut to form a notch portion 41.

In this case, since the end 44a is not coated with an adhesive, when the ventral waistline portion 40 is cut, the end 44a is slightly moved outward in the lateral direction (the opposite side of the notch portion 41) by the shrinkage of the rubber wire 44 around the notch. Therefore, it is possible to prevent the bad situation that the rubber thread 44 around the notch is exposed at the notch 41 (if exposed, not only the look and feel is poor, but the end 44a also touches the skin and makes the touch feel bad).

Claims (7)

A disposable diaper having a longitudinal direction and a transverse direction crossing the longitudinal direction, and includes an absorbent body including an absorbent body for excrement, a back waist portion on one end side of the absorbent body, and The abdomen waist portion on the other end side of the absorptive main body is characterized in that a cutting portion is provided at a central portion of the abdomen waist portion in the lateral direction and an upper end of the abdomen waist portion in the longitudinal direction. The width in the lateral direction is smaller than the maximum width of the absorbent body, and elastic members along the lateral direction are provided on both sides of the lateral portion of the cutting portion. The elastic member is a first elastic member, and the longitudinal direction of the cutting portion is provided. Below the longitudinal direction of the absorbent body, a second elastic member is provided, and the second elastic member extends from one of the two lateral ends of the lateral side of the ventral waistline to the lateral direction to On the other hand, a third elastic member is provided below the second elastic member in the longitudinal direction, and the third elastic member is provided from the belly. One of the two ends extends along the transverse direction to the other, and has a discontinuous portion on the absorbent body. The elastic member is provided on the abdominal waist portion. The elastic member having the largest stretching force is the first elastic member to the foregoing. The aforementioned second elastic member among the third elastic members. The disposable diaper according to claim 1, wherein the first elastic member extends from the two sides to the two ends of the ventral side, and the number of the first elastic members is larger than that of the second elastic members. A few. If the disposable diaper is used after the item 1 or 2 is used, the second elastic member is provided with a plurality of side-by-sides in the longitudinal direction, and the second elasticity is located above the longitudinal direction among the second elastic members. The telescopic force of the component is the smallest among the plurality of second elastic members. The disposable diaper according to claim 3, 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 ends of the ventral side. The elastic force of the second elastic member located at the bottom of the longitudinal direction among the plurality of second elastic members is a plurality of the second elastic members that extend along the transverse direction to the other side and has a discontinuous portion on the absorbent body. The largest of the components. The disposable diaper according to claim 1 or 2, wherein the lateral end portions of the lateral side of the abdominal waist and the lateral end portions of the back side of the lateral waist are connected. If the disposable diaper of claim 5 is used, the abdomen is placed in a state in which the longitudinal position of the upper end of the waist portion on the abdominal side and the longitudinal position of the upper end of the waist portion on the back side are consistent with each other. The two end portions of the side and the two end portions of the back side are connected, and the elastic member is formed at the upper end of the abdominal waist portion by extending the elastic member from the both side portions to the both end portions of the abdominal side. The upper-side elastic region is formed at the upper end of the back-side waistline portion by extending an elastic member from one of the two ends of the back-side to the other to form a back-side upper-end elastic region having elasticity. The region and the dorsal upper end elastic region are continuous between the ventral end portions and the dorsal end portions connected to each other. For example, the disposable diaper according to claim 1 or 2, wherein the end of the elastic member provided on the lateral sides of the cutting portion closest to the cutting portion is not coated with a bonding agent, and is coated on An adhesive other than this end joins the elastic member to the abdominal waistline.