KR102555430B1 - disposable wearables - Google Patents

Abstract

The present invention provides a disposable wearable article having high designability in an elastic region and an inelastic region. In the disposable wearable article 10, the first waist region 11, which is one of the front and back waist regions 11 and 12, is formed of a waist sheet 16 that can be stretched in the horizontal direction X, and The seat has a first display element 61 and a second display element 63 visible from the outside, the first waist region is located on the side of the waist opening 22, and the first display element is located. It is located between one elastic region 41 and a pair of second elastic regions 42, overlaps with the crotch panel 15, and has an inelastic region 43 in which the second display element is located. In the stretched state of the waist sheet, the shapes of the first display element and the second display element are different from each other, and in the contracted state of the first waist region, the shapes of the first display element and the second display element are different from each other. the form is the same

Description

disposable wearables

The present disclosure relates to disposable wearable articles.

Conventionally, disposable wearable articles are known. For example, Patent Literature 1 discloses a wearing article having front and rear waist regions and a crotch region. The front and rear waist regions of the wearable article have an elastic region that can be stretched in the transverse direction and an inelastic region, the elastic region and the inelastic region are formed of a continuous waist sheet, and a display element visible from the outside is disposed in the nonelastic region. .

Japanese Patent Laid-Open No. 2004-298362

In the wearing article described in Patent Literature 1, the design of the waist region can be enhanced by the display element.

However, since the display element is arranged only in the inelastic region and not in the elastic region so as not to lose its shape in the contracted state of the waist region, the designability in the elastic region is low.

Therefore, an object of the present invention is to provide a disposable wearable article having high designability in an elastic region and an inelastic region as an improvement of the prior art.

In order to achieve the above object, the present invention targets a longitudinal direction and a transverse direction, a skin facing surface and a non-skin facing surface, a first waist region that is one of the front and rear waist regions, and the front and back waist A crotch panel having a second waist region on the other side of the region and a crotch region positioned between the first and second waist regions and extending from the crotch region to the first and second waist regions It is a disposable wearable item.

In the present invention, in the wearable article, at least the first waist region of the first and second waist regions is formed of a waist sheet that is stretchable in the transverse direction. The waste sheet has a first display element and a second display element that can be visually recognized from the outside. The first waist region is located between a first elastic region located on the waist opening side, a pair of second elastic regions located on the side of the crotch region, and the second elastic region, and furthermore, the crotch panel has an inelastic region overlapping with The first display element is located in the first elastic region, and the second display element is located in the inelastic region. In the stretched state of the waste sheet, the shapes of the first display element and the second display element are different from each other, and in the contracted state of the first waist region, the first display element is Compared to the stretched state, the dimension in the horizontal direction is smaller, and the shape of the first display element and the second display element are the same.

The waist sheet includes a stretchable sheet stretchable in the transverse direction and a non-stretch sheet stacked on the stretchable sheet, and the first and second display elements are printed on the stretchable sheet. In such a wearable article, since the printing area is elongated, the material cost can be reduced by reducing the printing area in the first display element compared to printing on the non-stretch sheet.

The waist sheet includes the stretchable sheet stretchable in the transverse direction and the non-stretch sheet laminated on the stretch sheet, and the first and second display elements are printed on the non-stretch sheet. In such a wearable article, the print area does not elongate and become thin, as in the case where the first and second display elements are printed on the stretchable sheet, and a clear and complex design can be printed, so that the design can be further improved.

The crotch panel has a third display element located in the crotch area and visible from the outside, and in a state in which the first waist area is contracted, the shapes of the second display element and the third display element are different. same. In such a wearable article, since the shapes of the first, second, and third display elements arranged in the vertical direction are the same, a unified impression can be given to the overall appearance of the diaper including the waist region and the crotch region. Therefore, the design of the entire wearable article can be improved.

A fourth display element visible from the outside is disposed in the pair of second elastic regions, and the shape of the fourth display element and the second display element are the same when the first waist region is in an extended state. do. In such a wearable article, since the shape of the second display element and the fourth display element aligned in the horizontal direction X are the same, a unified impression can be given to the appearance of the diaper.

A dimension in the longitudinal direction of the inelastic region of the first waist region is smaller than a dimension in the longitudinal direction of the inelastic region of the second waist region. In such a wearing article, when the design of the second waist region is improved similarly to the first waist region, identification of the first waist region and the second waist region becomes easy, and both design and identification can be improved. .

According to one or more embodiments of the present invention, a disposable wearable article having high designability in an elastic region and an inelastic region can be provided.

In such a wearable article, when the first waist region is contracted, the shape of the first display element located in the elastic region and the second display element located in the inelastic region are the same, so that the elastic region and the inelastic region are highly designed. have a castle

The drawings show specific embodiments of the present invention, and include optional and preferred embodiments as well as indispensable components of the invention.
1 is a front view of a disposable diaper, which is an example of a disposable wearable article according to the present invention.
Fig. 2 is a partial fracture and development plan view of a diaper that has been stretched in the longitudinal and transverse directions, as seen from the side facing the skin.
Fig. 3 is a developed plan view of the diaper of Fig. 2 viewed from the non-skin facing side.
Fig. 4(a) is a front view of the front waist region showing a state in which the front waist sheet is stretched. Fig. 4(b) is a front view of the entire waist region showing a state in which the entire waist region is contracted.
Fig. 5 (a) is a view similar to Fig. 4 (a) in a conventional diaper. Fig. 5(b) is a view similar to Fig. 4(b) of a conventional diaper.
6 is a diagram showing an example of a method for manufacturing a diaper.
7(a), 7(b), and 7(c) are diagrams showing states of display elements printed on an elastic sheet in a diaper manufacturing process.
8(a), 8(b), and 8(c) are views showing the state of display elements printed on the non-stretch sheet in the diaper manufacturing process.
Fig. 9 (a) is a view similar to Fig. 4 (a) in an example of a modified example. Fig. 9(b) is a view similar to Fig. 4(b) in an example of a modified example.
Fig. 10 (a) is a view similar to Fig. 4 in another modified example of the diaper. Fig. 10(b) is a view similar to Fig. 4 in another modified example of the diaper.

The following embodiments include not only the indispensable components of the invention, but also optional and preferred configurations regarding the disposable wearable articles shown in Figs. 1 to 10, which are examples of the present invention. In FIGS. 2 and 3 , each elastic material described later resists the contraction force, and the gather generated in the member to which each elastic material is attached due to the contraction force in the horizontal direction (X) and the vertical direction (Y) is a natural view. It is in a stretched state to the extent that it appears to be substantially lost by In FIGS. 3 to 10 , boundary portions between an inelastic region 43 described later and first and second elastic regions 41 and 42 are indicated by virtual lines.

<First Embodiment>

1 to 3, a disposable diaper 10, which is an example of a disposable wearable article according to the present invention, has a vertical direction (Y) and a horizontal direction (X) intersecting (orthogonal) thereto, and a skin facing surface and its The non-skin facing surface on the opposite side, the vertical axis P bisecting the length dimension in the horizontal direction (X), the horizontal axis Q bisecting the length dimension in the vertical direction (Y), and the front waist region 11 (second first or second waist region), the rear waist region 12 (second or first waist region), and the crotch region 13 located between the front waist region 11 and the back waist region 12. have The diaper 10 includes an annular elastic waist panel 14 substantially symmetrical about a vertical axis P and extending in a waist rotation direction, and front and rear waist areas 11 and 12 from a crotch area 13. ), and includes a crotch panel 15 bonded to the elastic waist panel 14. The elastic waist panel 14 includes a front waist sheet 16 forming a front waist region 11 and a rear waist sheet 17 forming a rear waist region 12 . The front and rear waste sheets 16 and 17 each have a display element 60 that can be visually recognized from the surface.

≪Anteroposterior waist sheet≫

The front and rear waist sheets 16 and 17 each have inner edge edges 16a and 17a extending in the lateral direction X and outer edge edges extending in the lateral direction X ( 16b, 17b) and a horizontally elongated rectangular shape defined by both side edges 16c, 16d, 17c, 17d extending in the vertical direction Y. In addition, the inner and outer edges 16a, 16b, 17a, 17b and both side edges 16c, 16d, 17c, 17d of the front and rear waist sheets correspond to the inner and outer edges and both side edges of the front and rear waist regions 11 and 12, respectively. . Both edge portions of the front waist sheet 16 (both edge portions of the front waist region 11) and both edge portions of the rear waist sheet 17 (both edge portions of the rear waist region 12) overlap each other in the vertical direction ( Y) is connected by discontinuous side seams 21, and a waist opening 22 and a pair of leg openings 23 are formed. The side seams 21 are formed by known bonding means, for example, various welding means such as thermal welding and ultrasonic welding.

The front and rear waist sheets 16 and 17 are respectively: elastic sheets 31 and 32 located on the skin facing surface side and elastically stretchable in at least the transverse direction (X); and non-stretchable sheets located on the non-skin facing surface side ( 33, 34). The stretchable sheets 31 and 32 are bonded to the non-stretchable sheets 33 and 34 by a known bonding means such as an adhesive in a state of being stretched in the transverse direction X. The display element 60 is placed on either of the stretchable sheets 31, 32 and the non-stretchable sheets 33, 34 by, for example, a printing means, but in this embodiment, the stretchable sheets 31, 32 A display element 60 is arranged by printing means. The front and rear waist sheets 16 and 17 have bent portions 35 and 36 located on the non-skin facing side along the waist opening edge.

The stretchable sheets 31 and 32 include, for example, a spunbond nonwoven fabric composed of elastic fibers having a mass of about 10 to 40 g/m 2 , an air-through nonwoven fabric, a needle punched nonwoven fabric, etc. A fibrous nonwoven fabric is used. Elastic fibers use thermoplastic elastomer, rubber, etc. as a raw material, and in particular, when a thermoplastic elastomer is used as a raw material, melt spinning using an extruder is possible in the same way as a normal thermoplastic resin, and the fibers obtained in this way are thermally fused. It is easy and suitable as a stretchable fiber nonwoven fabric. These are used individually by 1 type or in combination of 2 or more types. The stretchable sheets 31 and 32 may exhibit elasticity in only one direction (horizontal direction), or may exhibit elasticity in two or more directions (vertical and transverse directions), for example.

As the non-stretch sheets 33 and 34, various known fibrous nonwoven fabrics, air permeable or vapor permeable plastic sheets, or laminates thereof having a mass of about 10 to 40 g/m 2 are used, for example. As the fibrous nonwoven fabric, various known fibrous nonwoven fabrics such as spunbond fibrous nonwoven fabric, SMS nonwoven fabric, and air-through fiber nonwoven fabric are used. In addition, as long as the effect of the present invention described later is exhibited, the front and rear waist sheets 16 and 17 may have a structure not including the non-stretch sheets 33 and 34 .

≪Crotch panel≫

Referring to FIGS. 2 and 3 , the crotch panel 15 includes a front end portion 15A located in the front waist region 11 and a rear end portion 15B located in the rear waist region 12, Between the end portions 15A and 15B, it has an intermediate portion 15C that extends in the vertical direction Y and forms the crotch area 13 . The crotch panel 15 is located on the side facing the skin and includes an inner sheet 51 made of a fibrous nonwoven fabric having liquid permeability, a liquid absorbent core 52, and at least a bottom surface of the absorbent core 52. ) and a liquid-impervious leak-proof sheet 53 covering the whole, and a liquid-impervious outer surface sheet 54 forming the entire non-skin facing surface of the crotch panel 15. The absorbent core 52 is a core material formed of a mixture of fluff wood pulp and superabsorbent polymer particles, etc., and a liquid absorbing and diffusing core cover such as tissue paper covering the entire core material. A sheet (not shown) is included. In this embodiment, the inner sheet 51, the absorbent core 52, the dustproof sheet 53, and the outer sheet 54 have a vertically elongated rectangular shape. The crotch panel 15 includes end flaps extending and protruding from the front and rear edges of the absorbent core 52 outward in the vertical direction Y, and extending from both side edges of the absorbent core 52 to the outside in the horizontal direction X. It has side flaps that extend and protrude. The end flaps and the side flaps are formed by overlapping and bonding the inner sheet 51, the dustproof sheet 53 and the outer sheet 54 to each other.

The crotch panel 15 extends in the vertical direction Y along both side edges (side flaps) located outside the horizontal direction X of the absorbent core 52. Strand ) or string-shaped leg elastic bodies 55 are disposed. In this embodiment, the leg elastic body 55 is interposed between the inner surface sheet 51 or the anti-dust sheet 53 and the outer surface sheet 54 so as to be able to contract in a stretched state. Leg elastic regions are formed at both side edges of the crotch region 13 by the leg elastic body 55 .

≪Elastic region and inelastic region≫

2 and 3, the front and rear waist regions 11 and 12 include a first elastic region 41 located on the side of the waist opening 22 and elastically stretchable in the horizontal direction X; A pair of second elastic regions 42 located on the side of the crotch region 13 and spaced apart from each other in the horizontal direction X, and an inelastic region located between the pair of second elastic regions 42 ( 43). The first elastic region 41 extends in the lateral direction X between both edge portions of the front and rear waist regions 11 and 12 . The second elastic region 42 and the inelastic region 43 are located inside the first elastic region 41 in the longitudinal direction Y, and the inelastic region 43 is closed when viewed from the plane shown in FIG. 2 . It overlaps the tooth panel (15).

The inelastic region 43 can be formed, for example, by subjecting a part of the stretchable front and back waist sheets 16 and 17 to thermal embossing/debossing so that the stretchability is not expressed. In addition, the inelastic region 43 is formed so as to overlap about 80% or more of the total placement area of the absorbent core 52 of the crotch panel 15, preferably all of the placement area, when viewed in plan view. , You may overlap with a part of the end flap and/or the side flap located around the absorbent core 52. In this embodiment, the inelastic region 43 of the front waist region 11 overlaps all of the arrangement region of the absorbent core 52 and a part of the end flap, and the inelastic region 43 of the rear waist region 12 Silver overlaps all of the arrangement area of the absorbent core 52.

≪Each display element≫

Referring to Figures 1, 3 and 4, as previously described, the front and rear waistsheets 16, 17 have display elements 60. The display element 60 includes an upper display element (first display element) 61 located in the first elastic region 41 and a side display element (fourth display element) located in the second elastic region 42. 62, and a central display element (second display element) 63 located in the inelastic region 43. In addition, although FIG. 4 shows only the structure of the front waist area 11, the back waist area 12 has the same structure.

3 and 4(a), in the state in which the front and rear waist sheets 16 and 17 are stretched, the shapes of the upper display element 61 and the central display element 63 are different from each other. 1 and FIG. 4(b), in a state where the front and rear waist regions 11 and 12 are contracted, the top display element 61 and the center display element 63 have the same shape. Here, "a state in which the front and rear waist regions 11 and 12 are contracted" means a state before wearing the diaper 10, and the elastic material constituting the diaper 10 moves the front and back waist without applying an external force. This refers to a state in which the regions 11 and 12 are contracted. In addition, "the shape is the same" includes a case where the shape is the same or there is a slight difference to the extent that the same is maintained, for example, a pattern of a similar shape, etc., in the vertical direction in one display element 60 ( The ratio of the dimension Y) to the dimension in the horizontal direction (X) is substantially the same as the ratio of the dimension in the vertical direction (Y) to the dimension in the horizontal direction (X) of the other display element 60. This means that both display elements 60 have different dimensions in the vertical direction and/or in the horizontal direction. In this embodiment, the display element 60 is a diamond mark, but the shape of the display element 60 is not limited to this, and various well-known, for example, heart marks, clover marks, stars, circles, etc. A variety of forms are used.

Referring to FIG. 5(a), conventionally, when the first and second elastic regions 141 and 142 and the non-elastic region 143 are formed as a series of elastic waist sheets in each waist region, the design is improved. In a diaper in which display elements having the same shape are formed on the entire waist sheet to increase height, as shown in FIG. 5(b), the upper display located in the first elastic region 141 in a contracted state of the front and rear waist regions The shapes of the element 161 and the center display element 163 located in the inelastic region 143 are different from each other. In such a diaper, the top display element 161 loses its shape and becomes distorted compared to the center display element 163, which lowers the designability and reduces the user's willingness to use it.

Referring to FIG. 4(a) , in the diaper 10 of this embodiment, in a state in which the front and rear waist sheets 16 and 17 are uniformly stretched in the transverse direction X, the first elastic regions 41 The dimension of the upper display element 61 positioned in the horizontal direction X is larger than the dimension of the central display element 63 positioned in the non-elastic region 43 in the horizontal direction X. Referring to FIG. 4( b ), in a state in which the front and rear waist regions 11 and 12 are contracted, the dimension of the upper display element 61 in the horizontal direction (X) is reduced, and thus the upper display element 61 and the center display element 61 are displayed. Element 63 is of the same shape. In such a diaper 10, since the display elements 61 and 63 having a sense of unity are located in the first elastic region 41 and the inelastic region 43, the design is high. In this embodiment, since the upper display element 61 and the center display element 63 have almost the same shape and size, the vertical direction (Y) and the horizontal direction (X) of the display elements 61 and 63 It can give a more unified impression compared to other designs with similar dimensions. Further, in the contracted state of the front and rear waist regions 11 and 12, the dimension D1 in the lateral direction (X) at the edge on the crotch region 13 side is at the edge on the waist opening 22 side. is larger than the dimension D2 in the horizontal direction (X) of .

In the stretched state of the front and rear waist sheets 16, 17, the side display element 62 where the second elastic region 42 is located has the same shape as the center display element 63, and in this embodiment, almost It becomes a pattern of the same shape and size. On the other hand, in the state where the front and rear waist regions 11 and 12 are contracted, the dimension of the side display element 62 in the horizontal direction X is reduced, and the side display element 62 and the center display element 63 are different from each other. become one form. In such a diaper 10, in the contracted state, since the side display elements 62 of different shapes are located on both sides of the center display element 63, the design of the center display element 63 stands out and the design is high. it becomes Further, in the contracted state, the side display element 62 and the center display element 63 have substantially the same dimensions in the vertical direction (Y), and only the side display element 62 has a dimension in the horizontal direction (X). Since it is small, the center display element 63 has a larger design than the side display element 62, and the effect of making the center display element 63 stand out is high. Further, since the shape of the side display element 62 and the central display element 63 are the same in the stretched state of the front and back waste sheets 16 and 17, in the manufacturing process of the diaper 10, the front and rear waste sheets 16, Positioning of the crotch panel 15 becomes easy with respect to the sheet member serving as the base material of 17).

As already described, in this embodiment, each display element 61, 62, 63 is printed on the stretchable sheet 31, 32. In the manufacturing process, since the stretchable sheets 31 and 32 are bonded to the non-stretchable sheets 33 and 34 in a stretched state, when the display elements 60 are printed on the stretchable sheets 31 and 32, the non-stretchable sheets Compared to printing in (33, 34), the printing area can be reduced and the material cost can be reduced.

Referring to FIGS. 1 and 3 , the crotch panel 15 includes a crotch display element (third display element) 64 that can be viewed from the outside. The crotch display element 64 is at least one of the waterproof sheet 53 and the outer sheet 54 constituting the crotch panel 15, and is printed in an inelastic region where no elastic material is disposed. When the front and rear waist regions 11 and 12 are contracted, the crotch display elements 64, the center display elements 63, and the upper display elements 61 arranged in the vertical direction Y have the same shape. there is. In such a diaper 10, since the display elements 61, 63, and 64 are provided in the front and rear waist regions 11 and 12 and the crotch region 13, the overall design of the diaper 10 is improved, and each Since the display elements 61, 63, and 64 form a design with a sense of unity, the designability is higher. In addition, the crotch display element 64 can give a deep impression by being located in the area where the thick absorbent core 52 is arranged.

Referring to FIGS. 2 and 3 , the dimensions L1 and L2 of the inelastic region 43 in the vertical direction (Y) are different between the front waist region 11 and the rear waist region 12 . In this embodiment, the dimension L3 in the longitudinal direction (Y) of the absorbent core 52 disposed in the front waist region 11 is the vertical direction (Y) of the absorbent core 52 disposed in the rear waist region 12. is smaller than the dimension L4 of . Accordingly, the dimension L1 in the longitudinal direction (Y) of the inelastic region 43 in the front waist region 11 is the inelastic region 43 in the rear waist region 12 is smaller than the dimension L2 in the vertical direction (Y) of . When the upper display element 61 and the center display element 63 are formed on both sides of the front and rear waist regions 11 and 12, the outer surface of the diaper 10 is in a state where the front and rear waist regions 11 and 12 are contracted. When viewed from above, while the designability is enhanced by the design arrangement with a sense of unity, it is difficult to distinguish the front and rear sides of the diaper 10. As in the present embodiment, the dimensions of the absorbent core 52 and the inelastic region 43 in the longitudinal direction Y are different in the front and back waist regions 11 and 12, so that when the diaper 10 is worn, the diaper 10 ) or when the front and rear waist regions 11 and 12 are stretched, the front and back can be easily identified, and the diaper 10 is excellent in both design and identification.

FIG. 6 is a diagram showing an example of a method for manufacturing the diaper 10, showing a part of the manufacturing process for the diaper 10. As shown in FIG. In the first step 91 of the manufacturing process, an elastic first continuous sheet 71 serving as a base material for the front waste sheet 16 and a base material for the rear waste sheet 17 are formed by conveying rollers (not shown). The stretchable second continuous sheet 72 is continuously conveyed while being stretched in the machine direction MD at a predetermined stretch ratio (the stretch ratio is N times), and the first and second continuous sheets 71, On one side of 72), crotch panels 15 are arranged intermittently in the machine direction MD. The first and second continuous sheets 71 and 72 include a continuous stretchable sheet 75 serving as a substrate for the elastic sheets 31 and 32 and a continuous non-stretchable substrate serving as the substrate for the non-stretchable sheets 33 and 34, respectively. A seat 76 is included. Both ends of the crotch panel 15 are bonded to each of the first and second continuous sheets 71 and 72 through a bonding means such as a hot melt adhesive to form a composite panel serving as a base material of the diaper 10. do.

In the second step 92, after the composite panel is folded in half so that the crotch panel 15 is on the inside, sealing processing is performed between adjacent crotch panels 15, and the cross direction (CD) A pair of joint portions 73 extending in a direction orthogonal to the machine direction (MD) are formed. In the third step 93, the composite panel is cut along a cutting line 74 extending in the cross direction CD between the pair of joint portions 73 to form each diaper 10.

7(a) to 7(c) are views showing the state of the display elements 60 printed on the stretchable sheets 31 and 32 in the manufacturing process of the diaper 10, and FIG. 7(a) ) represents a non-stretched state (a state in which no external force is applied and relaxed; hereinafter referred to as a first state) of the continuous stretchable sheet 75 serving as the base material of the elastic sheets 31 and 32, and Fig. 7 ( b) shows a state in which the continuously stretchable sheet 75 is stretched in the first step 91 of the manufacturing process (hereinafter referred to as a second state), and FIG. 7(c) shows the manufactured diaper 10 shows a state in which the elastic sheets 31 and 32 are contracted (a state in which the front and rear waist regions 11 and 12 are contracted; hereinafter referred to as a third state).

Referring to FIG. 7( a ) , in the continuous stretchable sheet 75 in the first state, the dimension W3 of the upper display element 61 in the horizontal direction X is equal to the width W3 of the central display element 63 in the horizontal direction X is larger than the dimension W4 of . Referring to FIG. 7( b ), in the second state, the continuously stretchable sheet 75 is stretched at a predetermined stretch magnification (N times), and the dimension of each display element 61, 63 in the horizontal direction (X) is It becomes a larger dimension (approximately N times the dimensions W3 and W4) compared to the non-extended state. In this state, the crotch panel 15 is bonded to the area where the center portion display element 63 is arranged. Referring to FIG. 7(c) , in a third state in which the stretchable sheets 31 and 32 are bonded to the non-stretchable sheets 33 and 34 and contracted, the dimension W2 of the central display element 63 in the horizontal direction (X) is is almost the same as the dimension in the second state, but the dimension W1 of the horizontal direction (X) of the upper display element 61 is smaller than the dimension in the second state, and the dimension W2 of the center display element 63 is almost the same as

The dimension W1 in the horizontal direction X of the upper display element 61 in the third state approaches the dimension W3 in the horizontal direction X in the first state, but in the third state, the elastic sheet 31 , 32) is bonded to the non-stretchable sheet and the side seam 21 to suppress shrinkage, and the sheet characteristics of the elastic sheet 31, 32 and the non-stretch sheet, the bonding manner of both sheets, and the elastic sheet 31, 32 ), it becomes a slightly elongated state compared to the first state according to various setting conditions such as elongation magnification. Therefore, the dimension W1 of the upper display element 61 in the third state is larger than the dimension W3 in the first state by 1 to 20%. On the other hand, since the dimensions of the center display element 63 in the horizontal direction X are almost the same in the second state and the third state, the dimension W2 in the third state is approximately N times the dimension W4 in the first state. do. Further, the dimension of the side display element 62 in the horizontal direction X is substantially the same as the dimension of the center display element 63 in the horizontal direction X in the first and second states, and in the third state , It is slightly larger than the dimension in the lateral direction X in the first state because shrinkage is suppressed by the side seam 21 . In each state, the dimensions of the top display element 61, the side display element 62, and the center display element 63 in the vertical direction Y are substantially the same.

<Second Embodiment>

In the diaper 10 according to the second embodiment, the top display element 61, the side display element 62, and the center display element 63 are not the elastic sheets 31 and 32, but the non-stretch sheet 33, 34) is printed. 8(a) to 8(c) are views showing the state of the display elements 60 printed on the non-stretch sheets 33 and 34 in the manufacturing process of the diaper 10 of the second embodiment. 8 (a) shows a state in which the continuous non-stretch sheet 76 serving as the base material of the non-stretch sheets 33 and 34 is extended (hereinafter referred to as a fourth state), and Fig. 8 (b) shows The state of the continuous non-stretch sheet 76 in the first step 91 of the manufacturing process (hereinafter referred to as the fifth state) is shown, and FIG. 8(c) shows the elasticity in the manufactured diaper 10. A state in which the non-stretchable sheets 33 and 34 are contracted according to the contraction of the sheets 31 and 32 (hereinafter referred to as a sixth state) is shown. Since the diaper 10 of the second embodiment has the same basic configuration as that of the first embodiment, only the differences will be described below.

Referring to FIG. 8(a) , in the continuous non-stretchable sheet 76 in the fourth state, the dimension W5 in the horizontal direction X of the upper display element 61 is the horizontal direction X of the center display element 63 ) is larger than the dimension W6. Referring to Fig. 8(b), in the fifth state, the dimensions of the display elements 61 and 63 in the horizontal direction X are substantially the same as those in the fourth state. In this state, the crotch panel 15 is bonded to the area where the center portion display element 63 is arranged. Referring to FIG. 8(c) , in the sixth state, due to contraction of the stretchable sheets 31 and 32, the dimension W1 of the upper display element 61 in the horizontal direction (X) is smaller than the dimension in the second state. , and is substantially equal to the dimension W2 of the center portion display element 63.

The dimension W1 of the upper display element 61 in the horizontal direction X in the sixth state is a value close to 1/N times the dimension W5 in the fourth state. More specifically, due to the influence of the side shims 21, the dimension W1 becomes slightly larger than 1/N times the dimension W5. The dimension W2 in the horizontal direction X of the center display element 63 in the sixth state is a value closer to the dimension W6 in the horizontal direction X in the fourth state, but is smaller than in the first step 91. As the previous step, when forming the inelastic region 43 on the first and second continuous sheets 71 and 72, the region to be the inelastic region 43 slightly shrinks by heat embossing/debossing. , The dimension W2 of the 6th state of the central part display element 63 is 1 to 20% smaller than the dimension W6 of the 4th state. Therefore, the center portion display element 63 may be printed so that the size of the pattern is larger than that of the diaper 10 (sixth state) in the free state before manufacturing (fourth state).

In the diaper 10 of the present embodiment, since the display elements 60 are printed on the non-stretch sheets 33 and 34 and the display elements 60 do not expand or contract in the manufacturing process, Position alignment becomes easy by. In addition, when the display element 60 is printed on the continuous stretchable sheet 75 serving as the stretchable sheets 31 and 32, the print is elongated on the diaper 10 and the display becomes faded, but the non-stretchable sheet By printing on (33, 34), this situation can be eliminated and the design can be displayed clearly, and a design having a complicated design can be selected.

The configurations shown in the first and second embodiments can be used in combination with each other. For example, in one of the front and back waist regions 11 and 12, the display element 60 is printed on the stretchable sheet. , in the other waist area, the display element 60 may be printed on the non-stretch sheet. In the second embodiment, the inelastic region 43 may be formed by not arranging the elastic sheets 31 and 32 .

<Example of modification>

Fig. 9 (a) is a figure similar to Fig. 4 (a) in an example of a modified example, and Fig. 9 (b) is a figure similar to Fig. 4 (b) in an example of a modified example.

In this modified example, in the stretched state of the front and back waist sheets 16 and 17, the side display elements 62 located in the second elastic region 42 are different from the central display element 63 in shape. In the state where the front and rear waist regions 11 and 12 are contracted, the shape of the side display element 62 and the center display element 63 are the same. In addition, the side display element 62 has the same shape as the top display element 61 in the extended state of the front and back wastesheets 16 and 17 . In such a diaper 10, the display elements 61, 62, and 63 of the same shape are located in the first elastic region 41, the second elastic region 42, and the inelastic region 43, so that the front and rear waist regions 11 , 12) It can give an impression of unity in the whole.

Fig. 10(a) is a view similar to Fig. 4 in another modified example of the diaper 10. In this modified example, a face mark is displayed as the display element 60 . In the state where the front and rear waist sheets 16 and 17 are stretched, the upper display element 61 is a distorted mark extending in the horizontal direction X, but in the state where the front and back waist regions 11 and 12 are contracted, The upper display element 61 and the center display element 63 have the same form and have a substantially circular outer shape, making a well-balanced (balanced) beautiful mark on the face. In addition, when the front and rear waist regions 11 and 12 are contracted, the side display element 62 has a shape that is reduced in the horizontal direction X, and is different in shape from the central display element 63 .

Fig. 10(b) is a view similar to Fig. 4 in another modified example of the diaper 10. In this modified example, in the state where the front and rear waist regions 11 and 12 are contracted, the top display element 61 and the center display element 63 have the same shape and become similar designs with different sizes. In this way, even if the display elements have different sizes, a unified impression can be given by having the same shape.

In each embodiment and each modification described above, the display element 60 printed on the stretchable sheets 31 and 32 or the non-stretchable sheets 33 and 34 is produced in the manufacturing process (first step 91). Among the stretch ratio of the continuous stretchable sheet 75 (stretchable sheet 31, 32), the shrinkage rate by heat embossing/debossing, and the suppression of shrinkage by the side seam 21, at least continuous in the manufacturing process Considering the stretch ratio of the stretchable sheet 75, at least the upper display element 61 and the center display element 63 are set to have the same shape when the front and rear waist regions 11 and 12 are contracted. In addition, since the diaper 10 is manufactured through the manufacturing process described above, the uniformity of the shapes of the respective display elements 61 to 64 may include errors in manufacturing. In the case where a plurality of upper display elements 61 and center display elements 63 are formed, at least one top display element 61 and center display element 63 may be set to have the same shape.

Disposable wearable articles according to the present invention include, in addition to the diaper 10 , sanitary shorts, shorts-type pads, and other disposable wearable articles having a pants-like structure. Various known materials commonly used in this type of article can be used for each component constituting the diaper 10 according to the present invention without limitation, in addition to the materials described in the specification. Further, as the basic structure of the diaper 10, in this specification, the front and rear waist regions 11 and 12 are formed of separate front and rear waist sheets 16 and 17 as an example, but the front and rear waist regions 11 and 12 And a structure in which the crotch area|region 13 is formed by continuous sheet material may be sufficient. Also, in the specification, terms such as "first" and "second" are used simply to distinguish the same elements, positions, and the like.

10: Disposable diaper (disposable wear item)
11 : Front waist area
12: back waist area
13: crotch area
15: crotch panel
16: front waist seat (waste seat)
17: back waist seat (waste seat)
22: waist opening
31, 32: elastic sheet
33, 34: non-stretch sheet
41: first elastic region
42: second elastic region
43: inelastic region
61: upper display element (first display element)
62: side display element (fourth display element)
63: center display element (second display element)
64: crotch display element (third display element)
X: horizontal direction
Y: vertical direction

Claims (7)

A longitudinal direction and a transverse direction, a skin facing surface and a non-skin facing surface, a first waist region that is one side of the front and rear waist regions, and a second waist region that is the other side of the front and rear waist regions; A disposable wearing article comprising a crotch panel having a crotch area positioned between a second waist area and extending from the crotch area to the first and second waist areas,
At least the first waist region of the first and second waist regions is formed of a waist sheet that is stretchable in the transverse direction;
The waste sheet has a first display element and a second display element visible from the outside,
The first waist region is located between a first elastic region located on the waist opening side, a pair of second elastic regions located on the side of the crotch region, and the second elastic region, and furthermore, the crotch panel has an inelastic region overlapping with
The first display element is located in the first elastic region, and the second display element is located in the inelastic region;
In the stretched state of the waste sheet, the shapes of the first display element and the second display element are different from each other;
In the contracted state of the first waist region, the dimension of the first display element in the horizontal direction is smaller than that of the stretched state of the waste sheet, so that the shapes of the first display element and the second display element are reduced. are the same, and the shape of the second display element in the stretched state of the waist sheet is the same as the shape of the second display element in the contracted state of the first waist region. According to claim 1,
The waist sheet includes a stretchable sheet stretchable in the transverse direction and a non-stretchable sheet stacked on the stretchable sheet, and the first and second display elements are printed on the stretchable sheet. According to claim 1,
The waist sheet includes a stretchable sheet stretchable in the transverse direction and a non-stretch sheet laminated on the stretch sheet, and the first and second display elements are printed on the non-stretch sheet. According to any one of claims 1 to 3,
The crotch panel has a third display element located in the crotch area and visible from the outside, and in a state in which the first waist area is contracted, the shapes of the second display element and the third display element are different. identical wearables. According to any one of claims 1 to 3,
A fourth display element visible from the outside is disposed in the pair of second elastic regions, and the shape of the fourth display element and the second display element are the same when the first waist region is in an extended state. wear item. According to any one of claims 1 to 3,
A wearing article wherein a dimension in the longitudinal direction of the inelastic region of the first waist region is smaller than a dimension in the longitudinal direction of the inelastic region of the second waist region. According to claim 4,
A fourth display element visible from the outside is disposed in the pair of second elastic regions, and the shape of the fourth display element and the second display element are the same when the first waist region is in an extended state. wear item.

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