JP2018000593A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article which can maintain a compact packaging state.SOLUTION: An absorbent article has a vertical direction and a lateral direction which cross each other, and comprises: a belt part (32) which forms at least a part of a waist opening (BH) along the lateral direction; and an absorbent body (10) whose both end parts (10eLf, 10eLb) are connected to the belt part (32) along the vertical direction. In a packaged state by a packaging material, in the vertical direction, the absorbent article (1) has an opening side where the waist opening (BH) is positioned, and an opposite opening side opposite to the above mentioned opening side. Both side ends (32es) in the lateral direction of the belt part (32) are folded to inside in the lateral direction, and the absorbent body (10) is folded in the vertical direction so as to cover at least some of both side ends (32es) without folding both side ends (32es) in the vertical direction, from the opposite opening side to the opening side.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an absorbent article.

  Conventionally, an absorbent article such as a pants-type disposable diaper is known. In Patent Document 1, the first portion 26 (one side in the horizontal direction) and the third portion (the other side in the horizontal direction) 30 of the front side portion 12 and the rear side portion 14 constituting the waistline portion are arranged in the horizontal direction. A compact folded absorbent article 10 is disclosed that is folded and then vertically folded at a boundary 24.

US Pat. No. 6,702,798

  However, in the absorbent article 1 of Patent Document 1, since the absorbent article 10 in a pant-type state is folded in the vertical direction at the boundary line 24, the first portion 26 and the third portion 30 are combined with the second portion 28. Folding in the vertical direction increases the number of members folded in the vertical direction, which may make it difficult to maintain the folded state.

  The present invention has been made in view of the above problems, and its purpose is to easily maintain the folded state of the belt portion and the absorbent main body of the absorbent article and maintain a more compact packaging state. There is to do. In addition, the said subject becomes so remarkable that a pants-type disposable diaper is brought close to the shape like underwear. For example, if the length in the vertical direction (inseam) of a disposable diaper is increased to bring it closer to the shape of an underwear, the length of the absorbent core (absorbent body) in the vertical direction becomes longer, and the absorbent core is moved in the vertical direction. May need to wrap around. Even in such a case, an object is to make it easier to maintain the folded state and to maintain a more compact packaging state.

A main invention for achieving the above object includes a belt portion having a longitudinal direction and a transverse direction intersecting each other, forming at least a part of a waistline opening along the transverse direction, and along both the longitudinal direction and both end portions. An absorbent body connected to the belt portion, and wrapped in a packaging material in the longitudinal direction, the opening side where the waistline opening is located and the opposite opening opposite to the opening side An absorbent article having a side, wherein both lateral ends of the belt portion in the lateral direction are folded back inward in the lateral direction, and the absorbent main body is directed from the non-opening side toward the opening side. The absorbent article is folded in the longitudinal direction so as to cover at least a part of the both side ends without folding the both side ends in the longitudinal direction.
Other features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

  According to the present invention, since the absorbent main body is folded inward in the vertical direction without folding both lateral ends of the belt portion in the vertical direction, the absorbent main body and the belt portion are folded in the vertical direction together. The number of members to be folded is smaller than the case, the state of the folded absorbent article can be easily maintained, and a more compact packaging state can be maintained.

Drawing 1 is an outline front view which looked at diaper 1 of a 1st embodiment from the ventral side. FIG. 2A is a plan view of the diaper 1 in a state where the absorbent main body 10 and the belt portion 32 are elongated in the longitudinal direction. FIG. 2B is a cross-sectional view of the diaper 1 in the state of FIG. 2A. FIG. 3A is a plan view of the diaper 1 in which the first connection portion jf and the second connection portion jb of FIG. 2A are separated and developed. FIG. 3B is a cross-sectional view of the diaper 1 in the state of FIG. 3A. FIG. 4A is a schematic plan view of the diaper 1 before packaging. FIG. 4B is a schematic plan view of the diaper 1 in a state where the belt portion 32 is folded back from the state of FIG. 4A. FIG. 4C is a schematic plan view of the diaper 1 in a state where the absorbent main body 10 is folded from the state of FIG. 4B. Drawing 5 is a figure explaining diaper 1 taken out from a packing state and after a predetermined time progress. FIG. 6 is a plan view of the diaper 1 of FIG. 4C as viewed from the non-folded portion U side. FIG. 7 is a diagram illustrating the diaper 1 in the state of FIG. 4B. FIG. 8A is a plan view of the diaper 1 with the belt portion 32 folded back to the innermost side as viewed from the folded portion T side. FIG. 8B is a plan view of the diaper 1 of FIG. 8A as viewed from the non-folded portion U side. FIG. 9 is a diagram illustrating the diaper 1 when the folding position of the belt portion 32 is changed. FIG. 10A is a plan view of the diaper 1 before packaging. FIG. 10B is a plan view of the diaper 1 in a state where the belt portion 32 is folded back from the state of FIG. 10A. FIG. 10C is a plan view of the diaper 1 in a state where the absorbent main body 10 is folded from the state of FIG. 10B.

At least the following matters will become apparent from the description of the present specification and the accompanying drawings.
An absorptive main body having a longitudinal direction and a transverse direction intersecting each other, forming at least a part of a waistline opening along the transverse direction, and having both ends connected to the belt part along the longitudinal direction And an absorbent article having an opening side on which the waistline opening is positioned and an opposite side opposite to the opening side in the longitudinal direction in a state of being wrapped with a packaging material, Both lateral ends of the belt portion in the lateral direction are folded back inward in the lateral direction, and the absorbent main body is folded back in the longitudinal direction from the opposite opening side to the opening side. The absorbent article is folded in the longitudinal direction so as not to cover at least a part of both side ends.

  According to such an absorbent article, since the absorbent main body is folded inward in the vertical direction without folding both lateral ends of the belt portion in the vertical direction, the absorbent main body and the belt portion are put together vertically. The number of members to be folded is less than when folded in the direction, the state of the folded absorbent article is easily maintained, and a more compact packaging state can be maintained.

  In this absorbent article, it is preferable that the both side ends of the belt portion are folded back so as to be positioned on the skin side of the absorbent main body.

  According to such an absorbent article, when the absorbent article is to be taken out from the packaging material and worn, it depends on the thickness of the belt portion located on the skin side of the absorbent main body and the ventral side portion and the back of the waistline opening. The side part is in a separated state, and it becomes easy to grasp the abdominal side part or the back side part of the waistline opening with the separated waistline opening as a base point, so that the absorbent article can be easily spread in the wearing state.

  In this absorbent article, the belt portion has one side portion including one side end of the both side ends, and the other side portion including the other side end. It is desirable that at least a part of the side end overlaps the other side part.

  According to such an absorbent article, when taking out the absorbent article from the packaging material and trying to wear it, the waist part opening of the abdominal part and the back part is further separated, with the separated waist part opening as a base point, Since it becomes easy to grasp the ventral part or the back part of the waistline opening, it becomes easier to spread the absorbent article depending on the wearing state.

  In this absorbent article, the end on the opening side of the one side end overlaps with the other side portion, and the end on the opposite side of the one side end overlaps with the other side portion. The end on the opening side of the other side end overlaps with the one side part, and the end on the opposite side of the other side end does not overlap with the one side part. desirable.

  According to such an absorbent article, when taking out the absorbent article from the packaging material and trying to wear it, the waist part opening of the abdominal part and the back part is further separated, with the separated waist part opening as a base point, Since it becomes easy to grasp the ventral part or the back part of the waistline opening, it becomes easier to spread the absorbent article depending on the wearing state.

  In such an absorbent article, one end portion of the both end portions of the absorbent main body is connected to the belt portion by a pair of first connection portions, and one of the both end portions of the absorbent main body The other end portion is connected to the belt portion by a pair of second connection portions, and the pair of first connection portions is inclined outward in the lateral direction from the opening side toward the opposite opening side. The pair of second connection portions are inclined outward in the lateral direction from the opening side toward the opposite opening side, and the angle at which the first connection portion is inclined outward in the lateral direction; It is desirable that the angle at which the second connection portion is inclined outward in the lateral direction is different.

  According to such an absorbent article, in the state immediately after taking out the absorbent article from the packaging material, it can be visually recognized that the shape of the one end part and the other end part of the absorbent article is different. It becomes easy to recognize a base point for spreading the article in a worn state.

  In this absorbent article, it is preferable that the both side ends of the belt portion are folded back so as to be positioned on the non-skin side of the absorbent main body.

  According to such an absorbent article, since the skin side of an absorptive main body and a belt part do not contact, a possibility that the skin side of an absorptive main body in contact with a wearer's skin may be damaged can be reduced.

  In such an absorbent article, one end portion of the both end portions of the absorbent main body is connected to the belt portion by a pair of first connection portions, and one of the both end portions of the absorbent main body The other end portion is connected to the belt portion by a pair of second connection portions, and the pair of first connection portions is inclined outward in the lateral direction from the opening side toward the opposite opening side. The pair of second connection portions are inclined outward in the lateral direction from the opening side toward the opposite opening side, and the belt portion has elasticity in the lateral direction, It is desirable that the both end portions of the absorbent main body do not have elasticity in the lateral direction.

  According to such an absorbent article, it becomes easy to recognize the belt part which has the elasticity which differs in a property, and the absorptive main body which does not have a elasticity.

  In this absorbent article, the absorbent main body includes a folded portion that is folded in the longitudinal direction, a non-folded portion that is not folded, and a boundary portion that is a boundary between the folded portion and the non-folded portion. It is desirable that the opposite end of the both side ends of the belt portion is in contact with the boundary portion.

  According to such an absorbent article, the opposite side opening end of the belt part and the part in contact with the boundary part are different in the number of overlapped members and the rigidity is changed. The main body can be easily folded back in the vertical direction, and the folded state can be easily maintained.

=== First Embodiment ===
<Basic configuration of diaper 1>
As an example of the absorbent article handled in the present embodiment, a basic configuration of a pants-type disposable diaper 1 (hereinafter also referred to as “diaper 1”) will be described. Drawing 1 is an outline front view which looked at diaper 1 of a 1st embodiment from the ventral side. FIG. 2A is a plan view of the diaper 1 in a state where the absorbent main body 10 and the belt portion 32 are elongated in the longitudinal direction. FIG. 2B is a cross-sectional view of the diaper 1 in the state of FIG. 2A. Moreover, in each figure, the XX line | wire is the center in the horizontal direction of the diaper 1. FIG.

  The diaper 1 is in a pants-type state as shown in FIG. 1 when worn. The pants-type diaper 1 has a “longitudinal direction”, a “lateral direction”, and a “front-rear direction” that are orthogonal to each other. In the vertical direction, the waistline side of the wearer is referred to as “trunk opening side” or “opening side”, and the crotch side of the wearer is referred to as “inseam side”. In addition, the abdomen side of the wearer in the front-rear direction is referred to as “front side” or “abdomen side”, and the back side of the wearer is referred to as “rear side” or “back side”.

  The diaper 1 has a waist opening BH, a pair of leg openings LH, an absorbent main body 10 along the longitudinal direction, a pair of leg gathers 37, and a pair of belt parts 32 along the lateral direction.

  End portions 10eLf and 10eLb in the longitudinal direction (longitudinal direction) of the absorbent main body 10 and belt portions 32 and 32 respectively disposed on both sides in the lateral direction are respectively the first connection portion jf and the second connection portion jb. It is connected. The belly side of the diaper 1 is a pair of first connecting portions in which the end (one end) 10eLf of the absorbent main body 10 and the belt portion 32 are inclined outward in the lateral direction from the waist opening BH toward the leg opening LH. connected by jf. Similarly, on the back side, the end 10 (other end) eLb and the belt portion 32 of the absorbent main body 10 are paired with a pair of second slanted outward in the lateral direction from the waist opening BH toward the leg opening LH. It is connected by the connection part jb. Further, the abdomen end 37eLf of the leg gathers 37, 37 and the belt part 32 are connected by the first connection part jf, and the back end 37eLb and the belt part 32 are connected by the second connection part jb. ing. Examples of the connection method at the first connection portion jf and the second connection portion jb include known connection methods such as an adhesive, a heat seal, an ultrasonic seal, and a combination thereof.

  An end (opening side end) of the waist opening BH of the diaper 1 is configured by an abdominal end 10ef and a back end 10eb of the absorbent main body 10, and an end 32ew of each belt portion 32. The end 10 ef and the end 10 eb of the absorbent main body are respectively provided in the central part in the lateral direction.

  Each of the belt portions 32, 32 of the diaper 1 is provided with a plurality of thread rubbers 33, 33,... Arranged in the vertical direction along the horizontal direction (FIG. 1). Stretchability is imparted and fit is imparted to the waistline opening BH. Further, the leg gather portions 37 and 37 are provided on both sides of the absorbent main body 10 in the lateral direction. Each leg gather portion 37 is provided with a plurality of thread rubbers 38, 38 arranged in the lateral direction along the longitudinal direction of the absorbent main body 10, and imparts stretchability to the leg gather 37 in the longitudinal direction. Fit is imparted to the leg opening LH.

  The lateral length of the belt portion 32 of the diaper 1 in the pant-type state of the present embodiment shown in FIG. 1 (from the side end 32es of the belt portion 32 on one side to the side end es of the belt portion 32 on the other side. Length) is 250 mm. The length of the diaper 1 in the vertical direction (the length from the opening side end to the crotch side end of the diaper 1) is 220 mm. Moreover, the length of the vertical direction of the side end 32es of each belt part 32 is 60 mm, the length of the horizontal direction of the absorptive core 15 (after-mentioned) of the absorptive main body 10 is 100 mm, The length from the one side end of the absorbent core 15 to the side end 32es of the one belt portion 32 is 90 mm. In the diaper 1 in the pants-type state, the value obtained by dividing the longitudinal length of the side end 32es of the belt portion 32 by the longitudinal length of the diaper 1 is preferably 20% to 40%, more preferably. Is preferably 27.3%. Moreover, the value which remove | divided the length from the one side end of the absorptive core 15 in the horizontal direction to the side end 32es of the belt part 32 of the one side by the length of the horizontal direction of the belt part 32 is 25%- It is preferably 40%, more preferably 36.0%. Furthermore, the value obtained by dividing the length from one side end of the absorbent core 15 in the lateral direction to the side end 32es of the belt portion 32 on the one side by the length in the lateral direction of the absorbent core 15 is 80%. It is preferably ˜100%, more preferably 90.0%. By doing in this way, the diaper 1 can give the impression like underwear.

  The diaper 1 is in a planar state as shown in FIG. 2A at the final stage of the manufacturing process. The diaper 1 in a planar state has a “longitudinal direction”, a “lateral direction”, and a “thickness direction” as three directions orthogonal to each other. This longitudinal direction is a direction along the longitudinal direction of the absorbent main body 10, and corresponds to the longitudinal direction in the pants-type state (FIG. 1). 2A, “the state in which the diaper 1 is elongated in the longitudinal direction” means that when the diaper 1 is elongated in the longitudinal direction against the contraction force of the rubber threads 33, 38, the respective rubber rubbers 33, 38. It is a state in which the portion where the is placed is extended to such an extent that no wrinkles or gathers can be visually recognized.

  In the diaper 1 in the planar state shown in FIG. 2A, the longitudinal directions of the absorbent main body 10, the pair of leg gathers 37, and the pair of belts 32 are aligned, and the absorbent main body 10 and the pair of leg gathers 37 are on the skin surface side. While the pair of belt portions 32 overlap, the pair of leg gather portions 37 and the pair of belt portions 32 are extended in the longitudinal direction. Each of the belt portions 4 of the diaper 1 in the flat state is opened with the inner inner end 32ew in the lateral direction outward and the belt portions 32 are folded in half at the center in the longitudinal direction. By folding the leg gathers 37 in the middle in the longitudinal direction, the pants-type diaper 1 (FIG. 1) is obtained. The center part of the longitudinal direction of the absorptive main body 10 is an area | region distribute | arranged between groins at the time of wear. Moreover, the center of the longitudinal direction in the center part of the longitudinal direction of the absorptive main body 10 is a substantially center position CLL10, and is the part located on the crotch side in the pants-type state.

  As shown in FIG. 2A, the absorbent main body 10 has a substantially rectangular member (FIG. 3A) along the longitudinal direction cut along the first connection portion jf and the second connection portion jb, and ends in the longitudinal direction. 10eLf and 10eLb are sheet members each having a tapered shape in a substantially V shape in plan view. As shown in FIG. 3B, the absorbent main body 10 includes a liquid-permeable top sheet 12 made of nonwoven fabric or the like, an absorbent body 11, a polyethylene film, a polypropylene film, or the like in order from the skin side in the thickness direction. A permeable back sheet 14 and an exterior sheet 16 such as a nonwoven fabric are stacked.

  The angle θf that tilts outward in the lateral direction of the first connection portion jf of the diaper 1, that is, the smaller angle θf among the angles formed by the first connection portion jf and the straight line along the lateral direction is the second connection The angle θb inclined outward in the lateral direction of the portion jb, that is, larger than the smaller angle θb among the angles formed by the second connecting portion jb and the straight line along the lateral direction. In the present embodiment, the angle θf is 40 degrees and the angle θb is 34 degrees. The angle θf and the angle θb are substantially the same in the diaper 1 in the planar state (FIG. 2A) and the diaper 1 in the pants-type state (FIG. 1).

  The absorbent body 11 includes an absorbent core 15 that absorbs liquid and a core wrap sheet (not shown) that covers the outer peripheral surface of the absorbent core 15. The absorbent core 15 is formed by molding a liquid absorbent material into a predetermined shape. In the present embodiment, the absorbent core 15 has an elliptical shape in which both end portions in the longitudinal direction are curved. As a liquid absorptive material, liquid absorptive fibers, such as a pulp fiber, superabsorbent polymer (what is called SAP), etc. can be illustrated. Examples of the core wrap sheet include liquid permeable sheets such as tissue paper and nonwoven fabric. The absorbent core 15 may not be covered with the core wrap sheet.

  The belt portion 32 and the leg gather portion 37 are formed of the same sheet member 30. FIG. 3A is a plan view of the diaper 1 in which the first connection portion jf and the second connection portion jb of FIG. 2A are separated and developed. FIG. 3B is a cross-sectional view of the diaper 1 in the state of FIG. 3A. As shown in FIGS. 3A and 3B, sheet members 30 and 30 are disposed on both sides of the absorbent main body 10 in the lateral direction, respectively. The sheet member 30 is formed by stacking two flexible sheets 30a and 30a such as non-woven fabrics in the thickness direction and fixing the rubber threads 33 and 38 in the longitudinal direction between the sheets 30a. . End portions 30eW, 30eW in the lateral direction of the respective sheet members 30, 30 are inserted between the top sheet 12, the back sheet 14, and the exterior sheet 16 constituting the absorbent main body 10, and the top sheet 12 It is joined to the back sheet 14 and the exterior sheet 16 by an adhesive or the like. Further, as shown in FIG. 3B, a folding line FL along the longitudinal direction is set between the portion that becomes the belt portion 32 and the portion that becomes the leg gather portion 37 in the sheet member 30. Each sheet member 30 has a leg opening LH penetrating in the thickness direction so as to straddle the folding line FL in the lateral direction. Therefore, the belt portion 32 and the leg gather portion 37 are formed by folding the sheet member 30 inward in the lateral direction along the folding line FL. Then, in the first joint portions jf and jf and the second joint portions jb and jb, the end portions 10eLf and 10eLb of the absorbent main body 10 and the end portions 37eLf and 37eLb of the leg gather portion 37 and the end portions of the belt portion 32 in the lateral direction. 32eLf and 32eLb are connected, folded back by a folding line FL, and fixed, whereby the diaper 1 in a planar state shown in FIG. 2A is formed.

  Further, as shown in FIGS. 2B and 3B, in the laterally outer end region of the belt portion 32, a part of the sheet member 30 is folded twice in the lateral direction and folded with a hot melt adhesive or the like. Folded part FLB fixed to is provided. The folded portion FLB is located at the end of the belt portion 32 on the opening side of the diaper 1 in the pant-type state, forms a part of the waistline opening HB, and stress due to excessive tightening around the wearer's waist To ease.

<Diaper 1 in packaging>
Then, the diaper 1 in a packaging state is demonstrated. The diaper 1 is folded a predetermined number of times, accommodated in a packaging material (not shown) in a state where a plurality of diapers are arranged in the thickness direction, and distributed as a product in the market. The packaging material is formed of, for example, a flexible sheet-like material such as polypropylene, and the shape can be appropriately changed according to the shape of the diaper 1 and the number of accommodations. In addition, "the diaper 1 of a packaging state" means the state of the diaper 1 accommodated in the packaging material, and the state of the diaper 1 folded in the horizontal direction and the vertical direction immediately after taking out from the packaging material. Moreover, "the diaper 1 of a wearing condition" means the diaper 1 of the underpants type state shown in FIG.

  4A is a schematic plan view of the diaper 1 before packaging, FIG. 4B is a schematic plan view of the diaper 1 in a state where the belt portion 32 is folded back from the state of FIG. 4A, and FIG. 4C is a state of FIG. 4B. It is a plane schematic diagram of the diaper 1 in the state where the absorbent main body 10 is folded back. Drawing 5 is a figure explaining diaper 1 taken out from a packing state and after a predetermined time progress. FIG. 6 is a plan view of the diaper 1 of FIG. 4C as viewed from the non-folded portion U side. FIG. 7 is a diagram illustrating the diaper 1 in the state of FIG. 4B.

  As shown in FIG. 4A, the diaper 1 before being accommodated in the packaging material is in a pants-type state as in FIG. First, the side end 32es of the belt part 32 of the diaper 1 in the pants-type state of FIG. 4A is folded back at the folding line F1 so as to be positioned on the skin side of the absorbent main body 10. That is, the belt portion 32 is folded so that the side end 32es of the belt portion 32 is located inside the waistline opening BH. In the present embodiment, the side end 32es is folded back so as to be located on the crotch side with respect to the end 32ew and the ends 10ef, 10eb.

  The folding line F <b> 1 in the present embodiment is a line that forms an outline of the belt portion 32 as a result of folding the side end 32 es of the belt portion so as to be positioned inside in the lateral direction. The fold line F1 is provided on the outer side in the lateral direction from the first joint jf and the second joint jb. By folding back the side end 32es of the belt portion 32, the state shown in FIG. 4B is obtained.

  As shown in FIGS. 4B and 7, the side end 32es on one side in the lateral direction (left side in FIG. 4A) is overlapped with the folded portion of the belt portion 32 on the other side (right side in FIG. 4A). Similarly, the side end 32es on the other side (right side in FIG. 4A) in the lateral direction is overlapped with the folded portion of the belt portion 32 on one side (left side in FIG. 4A). That is, the overlapping portion P (the diagonally downward slanting portion in FIGS. 4B and 7) in which the folded belt portions 32 overlap in the thickness direction is formed.

  Subsequently, from the state shown in FIG. 4B, the diaper 1 is folded back in the vertical direction along a fold line F2. A boundary portion B shown in FIG. 7 is a region where a plurality of wrinkles are formed by folding the diaper 1 in the vertical direction with the fold line F2 as a reference line, and the folded portion T (FIG. 7) that folds the diaper 1 in the vertical direction. In the crotch side) and the unfolded portion U (the opening side portion in FIG. 7) that is not folded back. At this time, the folding line F2 is located at the center in the vertical direction of the folding part B. The fold line F2 is located on the crotch side from the abdominal end 15ef and the back end 15eb of the absorbent core 15. Further, the folded portion B is located on the crotch side with respect to the belt portion 32, and the crotch side end (end on the non-opening side) of the side end 32 es of the belt portion 32 is in contact with the boundary portion B.

  As shown in FIG. 4C, the size of the diaper 1 in the state of FIG. 4B is approximately half the size of the diaper 1 in the state of FIG. By folding back at the fold line F2, the side corresponding to the waist opening BH and the crotch side of the diaper 1 is defined as the “open side”, and the fold line F2 side is defined as the “non-open side”. In addition, in FIG. 4C, the diaper 1 is visually recognized from the folding | returning part T side, and the area | region of the crotch side of the diaper 1 in a pants | underpants type state can be visually recognized. FIG. 6 shows a state of the diaper 1 viewed from the non-folded portion U side opposite to FIG. 4C. In the present embodiment, since the end 32es of the belt portion 32 is folded back so as to be located on the skin side of the absorbent main body 10, the unfolded portion U (FIG. 6) also when viewed from the folded portion T (FIG. 4C) side. Even when viewed from the side, the end of the belt portion 32es cannot be visually recognized.

  A predetermined number (for example, 10) of the diaper 1 shown in FIGS. 4C and 6 is laminated on the folded portion T side or the non-folded portion U side, accommodated in a packaging material, and distributed as a product in the market.

  FIG. 5 shows the diaper 1 in a state accommodated in the packaging material taken out of the packaging material and viewed from the opening side when a predetermined time (for example, about 15 minutes) has elapsed. The diaper 1 is usually accommodated in a compressed state, and is compressed so as to be 1/3 to 1/4 of the state of the diaper 1 shown in FIG.

  As shown in FIG. 5, by folding the side ends 32 es of each belt portion 32 so as to be positioned on the skin side of the absorbent main body 10, the belt portion 32 on one side and the belt on the other side inside the waistline opening BH. The part is in a folded state. At this time, the end portion in the lateral direction of the belt portion 32 of the diaper 1 in the packaged state has two sides, that is, the abdominal side end portion and the back side end portion. The lateral ends 32ef, 32ef, 32eb, 32eb located at the lateral outer ends of the lateral ends are provided at the boundary between the folded portion and the unfolded portion of the belt portion 32. Each lateral end on one side and the other side forms two pairs of boundary lines. Of the pair of lateral ends 32 ef and 32 eb on one side and the pair of lateral ends 32 ef and 32 eb on the other side, the lateral end located on the outer side is the folding line F 1, and the belt portion 32 of the diaper 1 It becomes an outline. The waistline opening BH includes an opening side end 32ew of the belt portion 32 including the rubber thread 33 and opening side ends 10ef and 10eb of the absorbent main body 10. In FIG. 5, an end 32ew on the opening side of the belt portion 32 is indicated by hatching. The waist opening BH is composed of a stretchable end 32ew and non-stretchable ends 10ef, 10eb. A part of the stretchable belt portion 32 is folded back in the lateral direction, and the absorbent body 10 that does not stretch is stretched in the lateral direction. It is not wrapped.

<<< Effectiveness of Diaper 1 According to this Embodiment >>>
Conventionally, when a disposable diaper is folded back in a lateral direction and a longitudinal direction to be accommodated in a packaging material, first, the belt portion is folded back inward in the lateral direction, and then the belt folded back in the lateral direction with the absorbent main body. The part was folded back vertically. For this reason, the number of members that are folded back in the vertical direction increases the number of members that are folded back, and there is a problem that a strong force is required for folding or it is difficult to maintain the folded state.

  In particular, disposable diapers intended to absorb a large amount of excreta have an absorbent core (absorber) that is elongated in the longitudinal direction. Therefore, when the disposable diaper is folded in the longitudinal direction to make it into a packaged state, it is absorbed. Part of the body will be folded vertically. The absorbent core is formed by molding a liquid absorbent fiber material or the like, and is thicker than other sheet members, so that it is difficult for the absorbent body and the belt portion to be folded together. Even if it is folded back in the vertical direction by applying a stronger force, the folded-back state collapses, or even when it is accommodated in a packaging material, the boundary portion B that is the boundary between the folded-back portion and the non-folded portion swells. As a result, the thickness of the disposable diaper increases and the packaging state may become larger.

  On the other hand, in the diaper 1 of the present embodiment, both side ends 32es in the lateral direction of the belt portion 32 are folded back inward in the lateral state in a state where the diaper 1 is wrapped with a packaging material, and the absorbent main body 10 is anti-reverse. From the opening side toward the opening side, the both side ends 32es of the belt portion 32 are folded back in the vertical direction so as to cover the both side ends 32es of the belt portion 32 without being folded back in the vertical direction. That is, as shown in FIG. 7, the fold line F2 is located on the opposite side of the belt portion 32 of the diaper 1 and the belt portion 32 is not located at the boundary portion B, and the belt portion 32 is folded back in the vertical direction. Rather, the absorbent main body 10 is folded in the vertical direction with reference to the fold line F2.

  Thereby, the both side ends 32es of the belt portion 32 are not folded back in the vertical direction. That is, since only the absorbent main body 10 is folded in the vertical direction without folding the belt portion 32 in the vertical direction, the belt portion 32 and the absorbent main body 10 are folded together like a conventional disposable diaper. However, the number of folded members can be reduced. Therefore, the risk of the boundary B bulging is reduced, the diaper 1 folded back in the vertical direction can be easily maintained, and the state of being packaged with the packaging material can be easily maintained, thus maintaining a more compact packaging state. can do.

  Furthermore, the diaper 1 of the present embodiment is folded so that both side ends 32es and 32es of the belt portion 32 are located on the skin side of the absorbent main body 10. That is, both side ends 32es and 32es of the belt portion 32 are folded inside the diaper 1, respectively.

  Thereby, when taking out the diaper 1 from a packaging material and trying to wear it, as shown in FIG. 5, depending on the thickness of the belt part 32 folded so as to be located on the skin side of the absorbent main body 10, the diaper 1 The ventral portion and the back portion can be separated from each other. When the diaper 1 is viewed from the opening side, it becomes easy to recognize the abdominal part and the back part which are separated from each other, so it is easy to grasp the end 10ef of the abdomen part and the end 10eb of the dorsal part and wear the packaged diaper 1 It becomes easy to spread to the state.

  Furthermore, in the diaper 1 of the present embodiment, the belt portion 32 has one side portion (left belt portion 32 in FIG. 1) including one side end (left side in FIG. 1) and the other side (right side in FIG. 1). The other side part (right belt part 32 in FIG. 1) including the side end 32es is provided. A part of one side end 32es overlaps with the other side portion. Similarly, a part of the other side end 32es overlaps with the one side portion. The overlapping portion P where one belt portion 32 and the other belt portion 32 overlap is thicker than the portion where the belt portion 32 does not overlap due to the thickness of the belt portion 32.

  Accordingly, as shown in FIG. 5, the ventral portion and the back portion on the opening side of the diaper 1 are separated by the thickness of the portion where the end portions of the belt portions 32 and 32 inside the absorbent main body 10 are overlapped. It will be in the state. When the diaper 1 is viewed from the opening side, the abdominal part and the dorsal part are separated from each other, making it easy to recognize the abdominal part and the dorsal part, and easily grasping the abdominal end 10ef and the dorsal end 10eb. Therefore, it becomes easy to spread the diaper 1 in a packaged state in a worn state.

  Furthermore, in the diaper 1 of the present embodiment, as shown in FIG. 1 and the like, the abdominal side end portion 10eLf of the absorbent main body 10 is connected to the belt portion 32 by a pair of first connection portions jf. The back end 10eLb of the main body 10 is connected to the belt portion 32 by a pair of second connection portions jb. As shown in FIGS. 4C and 6, the pair of first connection portions jf is inclined outward in the lateral direction from the opening side toward the opposite opening side, and the pair of second connection portions jb is formed on the opening side. It inclines to the outer side of a horizontal direction toward the opposite opening side. Thereby, the diaper 1 of a pants | pants type state can be made into the shape close | similar to underwear like a shorts or a brief. Moreover, since the angle which the 1st connection part jf inclines to the outer side of a horizontal direction differs from the angle which the 2nd connection part jb inclines to the outer side of a horizontal direction, the belly side and back side of the diaper 1 of a pants-type state It is easy to distinguish.

  Specifically, as shown in FIG. 1 and FIG. 2A, the smaller angle θf among the angles formed by the first connecting portion jf and the straight line along the lateral direction is 40 degrees, and the second connecting portion jb and the lateral direction. The smaller angle θb among the angles formed by the straight line along the line is 34 degrees. In addition, although angle (theta) f and angle (theta) b were demonstrated using FIG.1 and FIG.2A, angle (theta) f and angle (theta) b are not changing substantially also in the diaper 1 of a packaging state.

  Further, as shown in FIGS. 8A and 8B, when the belt portion 32 is folded back to the innermost side, the abdominal end (one end) 10eLf and the back end (the other end) of the absorbent main body 10 are used. It can be visually recognized that the shape of 10eLb is different. FIG. 8A is a plan view of the diaper 1 with the belt portion 32 folded back to the innermost side as viewed from the folded portion T side. FIG. 8B is a plan view of the diaper 1 of FIG. 8A as viewed from the non-folded portion U side. The state in which the belt portion 32 is folded back to the innermost side refers to the first connection portion jf and the second connection portion on the inner side in the lateral direction until the belt portion 32 does not protrude from the first connection portion jf and the second connection portion jb. It is the state folded along jb, and refers to the state where the diaper 1 is folded back most compactly in the lateral direction. At this time, the outer contours of the first connection portion jf and the second connection portion jb coincide with the fold line F1. When viewed from the folded portion T side shown in FIG. 8A, a difference from the case shown in FIG. 4C hardly occurs, but when viewed from the non-folded portion U side shown in FIG. jf and the second connection part jb can be visually recognized. Therefore, it becomes easy to recognize the part used as the base point for extending the diaper 1 to a wearing state, folding the diaper 1 into a more compact state.

  Furthermore, as shown in FIG.1 and FIG.2A, the belt part 32 of the diaper 1 of this embodiment has the thread rubber 33 which expands-contracts in a horizontal direction, and both ends 10eLf and 10eLb of the absorptive main body 10 are An elastic member that expands and contracts in the lateral direction is not provided. That is, the end of the waistline opening BH is composed of an end 32ew of the stretchable belt portion 32 and an end 10ef, 10eb of the non-stretchable absorbent main body 10.

  Accordingly, the belt portion 32 that can be smoothly deformed since it has the thread rubber 33, and the absorbent main body 10 that is difficult to deform smoothly and causes wrinkles and the like because it does not have the elastic member. Are different in properties when both side ends 32es of the belt portion 32 are folded back inward. As shown in FIG. 5, when the diaper 1 is viewed from the opening side, it is possible to visually recognize how the properties are different, so that it is easy to recognize the respective portions of the belt portion 32 and the absorbent main body 10.

  For example, in the state where the diaper 1 is taken out from the packaging material, as shown in FIG. 5, it is easy to recognize the ends 10ef and 10eb of the absorbent main body 10 located in the central portion in the lateral direction. Therefore, when it is going to wear the diaper 1, it becomes easy to spread in a wearing condition by grasping the edge 10ef, 10eb of the absorptive main body 10. FIG.

  Furthermore, in the diaper 1 of the present embodiment, as shown in FIG. 7, the opposite ends of the side ends 32 es of the belt portion 32 are in contact with the boundary portion B. The portion where the opposite opening side end of both side ends 32es of the belt portion 32 and the boundary portion B are in contact with each other is a portion where the number of overlapped members changes. Therefore, since it is a part from which rigidity changes, it becomes a part which is easy to return the absorptive main body 10 to the vertical direction, and it becomes easy to maintain the packaging state of the diaper 1. FIG.

  Further, as shown in FIG. 9, the opening side end of one side end 32 es of the belt portion 32 overlaps with the other side portion, and the end opposite to the opening side of one side end 32 es overlaps with the other side portion. The opening side end of the other side end 32es of the belt part 32 overlaps with the one side part, and the opening side end of the other side end 32es does not overlap with the one side part. May be. FIG. 9 is a diagram illustrating the diaper 1 when the folding position of the belt portion 32 is changed. That is, the overlapping portion P where one belt portion 32 and the other belt portion 32 overlap is provided on the opening side of both side ends 32es and 32es.

  Thus, when taking out the diaper 1 from the packaging material and wearing it, the opening side of the diaper 1 depends on the thickness of the belt portion 32 in which the end portions of the belt portions 32 and 32 are overlapped on the inner side of the absorbent main body 10. In this state, the ventral portion and the back portion are separated from each other. In particular, by providing the overlapping portion P on the opening side, it becomes easy to separate the abdominal part and the dorsal part on the opening side, and it becomes easy to grasp the abdominal end 10ef and the dorsal end 10eb. It becomes easy to spread the diaper 1 in a wearing state.

=== Other Embodiments ===
As mentioned above, although embodiment of this invention was described, said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. Further, the present invention can be changed or improved without departing from the gist thereof, and needless to say, the present invention includes equivalents thereof. For example, the following modifications are possible.

  In above-mentioned embodiment, although it turned up so that the both ends 32es of the belt part 32 may be located in the skin side of the absorptive main body 10, it is not restricted to this. As shown in FIGS. 10A to 10C, both side ends 32 es of the belt portion 32 may be folded back so as to be positioned on the non-skin side of the absorbent main body 10. FIG. 10A is a plan view of the diaper 1 before packaging. FIG. 10B is a plan view of the diaper 1 in a state where the belt portion 32 is folded back from the state of FIG. 10A. FIG. 10C is a plan view of the diaper 1 in a state where the absorbent main body 10 is folded from the state of FIG. 10B.

  First, the side end 32es of the belt part 32 of the diaper 1 in the pants-type state of FIG. 10A is folded inward toward the abdomen along the folding line F10 so as to be positioned on the non-skin side of the absorbent main body 10. The fold line F10 is a line that defines the outline of the belt portion 32, and is provided on the outer side in the lateral direction from the first joint portion jf and the second joint portion jb. By folding back the side end 32es of the belt portion 32, the state shown in FIG. 10B is obtained. In the state of FIG. 10B, an overlapping portion P (an obliquely downward slanting portion in FIG. 10B) where the folded belt portions 32 overlap each other is formed. Then, the state of the diaper 1 of FIG. 10C is obtained by folding the diaper 1 in the vertical direction along the fold line F20. FIG. 10C shows the diaper 1 viewed from the folded portion T side. The fold line F20 is located on the side opposite to the opening side from the side end 32es of the belt portion 32, and the belt portion 32 is not folded in the vertical direction along the fold line F20, as in the above-described embodiment. 1 becomes easier to maintain. Moreover, a more compact form can be maintained even in the state of being accommodated in the packaging material. Further, since both side ends 32es of the belt portion 32 are folded back so as to be positioned on the non-skin side of the absorbent main body 10, the belt portion 32 does not contact the skin side of the absorbent main body 10, and thus contacts the wearer's skin. The fear that the skin side surface of the absorbent main body 10 to be damaged can be damaged can be reduced.

  In the above-described embodiment, the overlapping portion P in which the belt portions 32 overlap each other is provided, but the present invention is not limited to this. The belt portions 32 may be folded back inward in the lateral direction so as not to overlap each other. For example, the length of the belt portion 32 in the lateral direction may be shortened by turning the belt portion 32 a plurality of times inwardly in the lateral direction.

  Moreover, in the above-mentioned embodiment, although the edge of the opposite opening side of the both ends 32es of the belt part 32 touched the boundary part B, it is not restricted to this. The boundary portion B may be provided at a position away from the belt portion 32 by a predetermined distance. Even in such a case, the packaged diaper 1 can be easily maintained.

  Moreover, in the above-mentioned embodiment, although the folding line F2 was provided in the approximate center position of the vertical direction of the diaper 1, it is not restricted to this. As long as the belt portion 32 does not fold back in the vertical direction, the fold line F2 can be arbitrarily arranged.

  Furthermore, the absorbent article according to the present invention may be for adults and may be for infants. Moreover, not only a pants-type disposable diaper but also a tape-type disposable diaper may be used.

DESCRIPTION OF SYMBOLS 1 Diaper (absorbent article), 10 absorptive main body, 10ef, 10eb end, 10eLf end (one end), 10eLb end (other end), 11 absorber, 12 top sheet, 14 back sheet, 15 absorbent Core, 16 exterior sheet, 30 sheet member, 30 eW end, 32 belt, 32 ef lateral end (boundary line), 32 eb lateral end (boundary line), 32 ew end, 32 es side end, 32 eLf, 32 eLb end, 33 thread rubber (Elastic member), 37 leg gather part, 37eLf, 37eLb end part, 38 thread rubber, jf first connection part, jb second connection part, BH waistline opening part, LH leg part opening part, CLL10 substantially central position, F1, F2 folding line, FL folding line, FLB folding part, B boundary part, T folding part, U non-folding part

Claims (8)

Having a vertical direction and a horizontal direction intersecting each other;
A belt portion that forms at least a part of the waistline opening along the lateral direction;
Along the longitudinal direction, an absorbent main body having both end portions connected to the belt portion,
With
In the state of being wrapped with a packaging material, in the longitudinal direction, an absorbent article having an opening side where the waistline opening is located and an opposite opening side opposite to the opening side,
Both side ends in the lateral direction of the belt portion are folded back in the lateral direction,
The absorbent main body is folded back in the longitudinal direction from the opposite opening side toward the opening side so as not to fold the both side ends in the longitudinal direction and cover at least a part of the both side ends. Absorbent article characterized by. The absorbent article according to claim 1,
The absorbent article, wherein the both side ends of the belt portion are folded back so as to be positioned on the skin side of the absorbent main body. The absorbent article according to claim 2,
The belt portion has one side portion including the one side end of the both side ends and the other side portion including the other side end;
At least one part of said one side edge has overlapped with the said other side part, The absorbent article characterized by the above-mentioned. The absorbent article according to claim 3,
The opening side end of the one side end overlaps the other side portion,
The end on the opposite side of the one side end does not overlap the other side part,
The opening side end of the other side end overlaps the one side part,
The absorbent article according to claim 1, wherein an end of the other side opposite the opening side does not overlap the one side portion. The absorbent article according to claim 2, wherein
One end portion of the both end portions of the absorbent main body is connected to the belt portion by a pair of first connection portions,
The other end portion of the both ends of the absorbent main body is connected to the belt portion by a pair of second connection portions,
The pair of first connection portions are inclined outward in the lateral direction from the opening side toward the opposite opening side,
The pair of second connection portions are inclined outward in the lateral direction from the opening side toward the opposite opening side,
An absorbent article, wherein an angle at which the first connecting portion is inclined outward in the lateral direction and an angle at which the second connecting portion is inclined outward in the lateral direction are different. The absorbent article according to claim 1,
The absorbent article, wherein the both side ends of the belt portion are folded back so as to be positioned on the non-skin side of the absorbent main body. The absorbent article according to any one of claims 1 to 6,
One end portion of the both end portions of the absorbent main body is connected to the belt portion by a pair of first connection portions,
The other end portion of the both ends of the absorbent main body is connected to the belt portion by a pair of second connection portions,
The pair of first connection portions are inclined outward in the lateral direction from the opening side toward the opposite opening side,
The pair of second connection portions are inclined outward in the lateral direction from the opening side toward the opposite opening side,
The belt portion has elasticity in the lateral direction,
The absorbent article according to claim 1, wherein both end portions of the absorbent main body do not have elasticity in the lateral direction. The absorbent article according to any one of claims 1 to 7,
The absorbent main body has a folded portion that is folded in the vertical direction, a non-folded portion that is not folded, and a boundary portion that serves as a boundary between the folded portion and the non-folded portion,
The absorbent article characterized in that ends on the opposite sides of the both side ends of the belt portion are in contact with the boundary portion.

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