JP2022061368A - Absorbent article - Google Patents

Abstract

To provide an absorbent article for holding an appearance of the absorbent article, and allowing correct fitting of a second engagement member to a constitution member of the absorbent article.SOLUTION: An absorbent article 10 comprises: a liquid permeable surface sheet 14; a liquid impermeable rear surface sheet 12; an absorber 13 between the surface sheet 14 and the rear surface sheet 12; a pair of first engagement members 10A; and a second engagement member 10B engaging to the pair of first engagement members 10A for forming a pair of leg surrounding openings 10L of the absorbent article 10. The second engagement member 10B is formed of a transparent or translucent material. The absorbent article 10 has a first colored region 21 having a first color, the second engagement member 10B is fitted to a constitution member of the absorbent article 10 so as to partially overlap to the first colored region 21. In a region where the second engagement member 10B and the first colored region 21 are overlapped, a second colored region 22 having a second color different from the first color, is formed.SELECTED DRAWING: Figure 4

Description

The present invention relates to an absorbent article having a liquid permeable top sheet, a liquid permeable back sheet, and an absorber arranged between them.

Conventionally, absorbent articles such as disposable diapers (hereinafter, also simply referred to as “diapers”) that induce the discharged body fluid (hereinafter, also simply referred to as “body fluid”) to be absorbed by the absorber are widely known. Among the absorbent articles, the deployable one is attached with a second engaging member (for example, a front patch sheet) in order to repeatedly attach a pair of first engaging members (for example, fastening tape) so as to be removable. ing.

In the manufacture of an absorbent article having such a configuration, it will be inspected whether the second engaging member is mounted in the correct position with respect to the constituent member of the absorbent article (eg, cover sheet). , This inspection is performed by the attachment determination display formed on the second engaging member by printing or the like. Since the mounting determination display is formed in a simple shape (for example, a rectangular shape) of a certain size in order to perform accurate position determination, substantially the entire absorbent article is simply white or the like. If it is composed of one color or if the design is drawn on the absorbent article, the attachment determination display may spoil the appearance of the absorbent article.

An object of the present invention is to provide an absorbent article capable of retaining the appearance of the absorbent article and accurately attaching the second engaging member to the constituent members of the absorbent article.

The absorbent article according to the present invention comprises a front body portion, a back body portion, a crotch portion located between the front body portion and the back body portion, and the crotch portion from the front body portion side via the crotch portion. It is arranged in the longitudinal direction extending to the back body side, the width direction orthogonal to the longitudinal direction, the liquid-permeable front sheet, the liquid-impermeable back sheet, and between the front sheet and the back sheet. The absorber includes a pair of first engaging members, and a second engaging member that forms a pair of leg-circumferential openings of the absorbent article by engaging with the pair of first engaging members. The second engaging member is an absorbent article, the second engaging member is made of a transparent or translucent material, and the absorbent article is provided with a first colored region having a first color, and the first colored region is provided. The two engaging members are attached to the constituent members of the absorbent article so as to overlap at least a part of the first colored region, and in the region where the second engaged member and the first colored region overlap. It is characterized in that a second colored region having a second color different from the first color is formed.

According to the present invention, the second engaging member is formed of a transparent or translucent material, and the second engaging member is attached so as to overlap at least a part of the first colored region. With the configuration including the colored region, in the manufacturing process of the absorbent article, the attachment determination of the second engaging member is performed from the difference between the first color of the first colored region and the second color of the second colored region. Therefore, it is not necessary to provide the second engaging member with a mounting determination display formed in a simple shape having a certain size, and the appearance of the absorbent article can be easily maintained and the absorbent article can be easily obtained. It is possible to accurately attach the second engaging member to the constituent member of the above.

In the appearance of an example of a diaper according to the first embodiment of the present invention, it is a perspective schematic view seen from the front side. It is an exploded perspective view of the diaper shown in FIG. It is a top sheet view of the stretched diaper which concerns on 1st Embodiment of this invention. It is a top view which looked at the stretched state diaper which concerns on 1st Embodiment of this invention from the back sheet side. It is sectional drawing in the VV direction in FIG. It is a top view of the stretched diaper according to the second embodiment of the present invention as seen from the backsheet side, and has a first colored region as a target for attaching the second engaging member on the backsheet side of the diaper. It is a figure for demonstrating that the sticking target part having a frame shape is provided, and the 2nd engaging member is stuck in the frame, and (a) is a figure in which the 2nd engaging member is put in the frame. The figure in the case of pasting is shown, and in FIG. The figure when the colored area appears is shown. It is a top view which looked at the stretched state diaper which concerns on 3rd Embodiment of this invention from the back sheet side.

An embodiment of the absorbent article according to the present invention will be described in detail with reference to FIGS. 1 to 5. However, the present invention is not limited to the embodiment of the present embodiment.

In the description of the present specification and the scope of claims, the "longitudinal direction" is referred to as referring to a direction extending from the front body side of the absorbent article to the back body side via the inseam, and is referred to as " The "width direction" is referred to as referring to a direction orthogonal to the longitudinal direction.

Further, in the present specification and the description of the scope of patent claims, the "color" is composed of hue, saturation, and / or lightness, and the "first color" of the first coloring region is used. , A color that can be visually recognized from the outside of the absorbent article with respect to the first colored region, and the "second color" of the second colored region is when the second engaging member is superposed on the first colored region. It is a color that can be visually recognized from the outside of the absorbent article with respect to the second colored region. For example, when the second engaging member is made of white translucent and the first color of the first colored region is orange, the second engaging member and the first colored region overlap each other. The location, i.e., the second color of the second colored area is light orange. Further, the color visually recognizable from the outside includes, for example, a color that appears as an image when captured by a camera of an inspection device.

First, an embodiment in which the present invention is applied to a deployable disposable diaper will be described below.

<First Embodiment>
<Main composition of diapers>
FIG. 1 is a schematic perspective view of an example of a diaper according to an embodiment of the present invention as viewed from the front side, and FIG. 2 is a schematic exploded perspective view of the diaper 10 shown in FIG. Is a plan view of the stretched diaper 10 according to the present embodiment as viewed from the top sheet 14 side, and FIG. 4 is a plan view of the stretched diaper 10 according to the present embodiment as viewed from the back sheet 12 side. be. The absorber 13 in FIG. 2 and the diaper 10 in FIG. 3 are shown in a partially broken state for convenience of explanation.

The diaper 10 according to the present embodiment is a deployable disposable diaper, and has a front body portion 10F, a back body portion 10R, and a crotch lower portion 10C connecting the front body portion 10F and the back body portion 10R. Further, when worn, the front body portion 10F and the back body portion 10R form a waist-circumferential opening 10W that surrounds the wearer's waist portion. Similarly, a pair of left and right leg-circumferential openings 10L that surround the thighs of both legs of the wearer are formed by the lower ends of the front body portion 10F and the rear body portion 10R and the crotch portion 10C.

When worn, the front body portion 10F is located on the ventral side of the wearer, and the rear body portion 10R is located on the back side of the wearer. When worn, the inseam 10C covers the wearer's inseam, and the wearer's legs are passed through the pair of left and right leg-circumferential openings 10L. Therefore, the leg circumference opening 10L is located at any of the thighs from the bases of both legs of the wearer.

The virtual line P extends from the ventral side to the dorsal side in the central part of the diaper through the inseam part. Specifically, for example, if the waist side of the diaper is defined as the upper side and the inseam side as the lower side, the virtual line P extends along the surface of the diaper and in the vertical direction, and on the back side via the inseam portion. Also extends in the vertical direction. In the present embodiment, as shown in FIGS. 3 and 4, the virtual line P passes through the center of the diaper 10 (or the center in the width direction of the diaper 10) and extends linearly in the longitudinal direction.

As shown in FIG. 2, the diaper 10 in the present embodiment has a cover sheet 11 formed of a thin non-woven fabric in order from the outside (non-skin surface side) and liquid impermeable. It has a laminated structure in which a back sheet (back sheet) 12, an absorber 13, a liquid-permeable top sheet (front sheet) 14, and a pair of side sheets 15 are laminated.

At the left and right end edges of the back body portion 10R of the cover sheet 11 located on the outside of the diaper 10, when worn, they are overlapped with the left and right end edges of the front body portion 10F and connected to form an opening 10L around the legs. A pair of left and right fastening tapes (first engaging member) 10A to be obtained are adhered to each other. The fastening tape 10A can be repeatedly peeled off from the front patch sheet (second engaging member) 10B attached (for example, adhered with an adhesive) on the cover sheet 11 of the front body portion 10F (for example,). For example, it is joined). In the present invention, the fastening tape 10A and the front patch sheet 10B can function as mechanical fasteners.

In the present embodiment, as shown in FIGS. 3 and 4, the front patch sheet 10B has a sheet shape and is attached to the front body portion 10F side of the cover sheet 11, but the present invention is limited to this. However, the front patch sheet 10B may be attached to the outside of the diaper 10 other than the cover sheet 11, the front patch sheet 10B is attached to the rear body portion 10R side, and the fastening tape 10A is attached to the front body portion 10F. Aspects and the like are also acceptable.

In the present invention, the second engaging member 10B is made of a transparent or translucent material, the diaper 10 is provided with a first colored region 21 having a first color, and the front patch sheet 10B is a front patch sheet 10B. A second color different from the first color is attached to the component of the diaper 10 so that at least a part of the first colored area 21 overlaps with the front patch sheet 10B and the first colored area 21. A second colored region 22 having a color is formed.

With this configuration, the front patch sheet 10B is made of a transparent or translucent material, and the second colored region 22 is formed by attaching the front patch sheet 10B so as to overlap at least a part of the first colored region 21. Therefore, in the manufacturing process of the diaper 10, it is possible to determine the attachment of the front patch sheet 10B from the difference between the first color of the first colored region 21 and the second color of the second colored region 22. It is no longer necessary to provide a mounting judgment display formed in a simple shape of a certain size, and it is easy to maintain the appearance of the diaper 10 and to accurately mount the front patch sheet 10B to the constituent members of the diaper 10. It will be possible to do. The details of the configuration will be described later.

In the present embodiment, the diaper 10 is formed with an engagement target display portion 31 representing an engagement target of the pair of fastening tapes 10A with respect to the front patch sheet 10B, and the front patch sheet 10B is attached to the constituent members of the diaper 10. At that time, the engagement target display unit 31 is made of a material that can be seen through. Further, in the present embodiment, the engagement target display portion 31 is formed on the non-skin surface side of the cover sheet 11 of the front body portion 10F (for example, by providing a print layer by printing processing), and the virtual line P is used as a reference line. Three pairs (represented by reference numerals 31a, 31b, 31c in FIG. 4) are provided at predetermined intervals (for example, at equal intervals) substantially symmetrically. According to this configuration, when the front patch sheet 10B of the diaper 10 is attached to the front body portion 10F, the engagement target display portion 31 can be seen through, so that the attachment accuracy of the front patch sheet 10B to the diaper 10 can be seen. As a result that the engagement target display unit 31 is not required more than necessary, it is possible to prevent the engagement target display unit 31 from being formed in a misaligned manner, and it is possible to reduce the occurrence of defective products. It should be noted that the present invention also allows an aspect in which the engagement target display unit 31 is not provided.

As the material constituting the transparent or translucent front patch sheet 10B, a non-woven fabric is preferable. Further, the surface of the front patch sheet 10B may be embossed for the purpose of making it visible at a glance or improving the design, and the embossing may be formed, for example, in parallel with a plurality of wavy lines. .. Further, in the present invention, as long as the effect of the present invention is exhibited, a mode in which a display unit such as a design display or a function display is formed on the front patch sheet 10B is also acceptable.

In the present embodiment, as shown in FIG. 4, the design display portion 32 is formed (for example, by printing) on the front body portion 10F and the crotch lower portion 10C of the cover sheet 11 of the diaper 10. In the present embodiment, the design display unit 32 displays a character imitating an animal, and has a pair of eye portions 32e as shown in FIG. In the present embodiment, the design display unit 32 includes a picture or a photograph of an animated character, a person, an animal, a plant, a vehicle, food, a tool, clothes, a toy, a building, a natural sculpture, a constellation, a myth, or an old story. Characters, characters, symbols, figures, patterns and combinations thereof may be included. Therefore, the design display unit 32 may, of course, be a simple one or may be configured with a single color. In the present embodiment, the design display unit 32 is the first coloring region 21, and the front patch sheet 10B is attached so as to overlap a part of the design display unit 32. That is, the overlapped portion between the design display unit 32 and the front patch sheet 10B is the second colored region 22. In the present invention, the design display unit 32 may be provided on the back body portion 10R side, or may be provided not only on one side but also on both sides of the diaper 10 as in the present embodiment. Further, in the present invention, a mode in which the design display unit 32 does not include the first colored region 21 is also permitted. For example, in a plain diaper that does not include the design display unit 32, a front patch is included in the constituent members thereof. The area where the sheet 10B is attached (and its surrounding area) is defined as the first colored area 21, and the area where the color of the base of the diaper appears through the front patch sheet 10B after the front patch sheet 10B is attached is the first. 2 The colored region 22 may be used.

Further, in the present embodiment, a function display unit 33 (for example, by printing) for displaying the size, product name, etc. of the diaper 10 is formed on the front body portion 10F of the cover sheet 11 of the diaper 10.

In the present invention, a mode in which either one of the design display unit 32 and the function display unit 33 is provided or a mode in which both are not provided is also permitted. Further, in the present invention, the design display unit 32 and / or the function display unit 33 may be formed not on the cover sheet 11 of the diaper 10 but on other constituent members of the diaper 10, for example, the back sheet 12, and the design may be formed. The display unit 32 and / or the function display unit 33 may be formed on the back body portion 10R or the inseam 10C in addition to the front body portion 10F, or may be formed only on the back body portion 10R or the inseam 10C.

FIG. 5 is a sectional view taken along the line VV in FIG.

In the present embodiment, as shown in FIGS. 3 and 5, the absorber 13 has a region in which a plurality of recesses 20 formed by compression are formed. That is, a plurality of recesses 20 are formed in a part of the recess forming region. In the present embodiment, the absorber 13 is formed with recesses 20 in a grid pattern. As shown in FIGS. 3 and 5, the formation of the recess 20 makes it easier to bend in the recess 20, and it is possible to improve the fit of the diaper 10. Further, by continuously forming the concave portions 20, air can pass through to the ventral side or the dorsal side, and air permeability can be ensured. In addition, the discharged body fluid can be rapidly diffused and the absorber 13 can be used as a whole to be efficiently absorbed by the absorber 13.

In the present invention, the plurality of recesses 20 are physically formed by overlapping the plurality of individual recesses 20 as a plurality of structural units in addition to the plurality of individual recesses 20 which are not physically continuous. It is a concept that includes a series of things. Examples of the structural unit include, but are not limited to, a straight line and a continuous curve having no bending (angle) in the middle thereof.

For example, an adhesive is applied to the surface where the top sheet 14 and the absorber 13 are in contact with each other, and the recess 20 is formed by pressing a laminate of the absorber 13 and the top sheet 14 (hereinafter, also referred to as an “absorbent portion”). It will be provided. This squeezing is performed, for example, by embossing rolls. As a result, the top sheet 14 and the absorber 13 are occluded and integrally joined in the entire recess 20 extending from the bottom surface (bottom wall) to the wall surface (side wall) of the recess 20. The thickness (thickness of the absorbing portion) of the top sheet 14 and the absorber 13 at the bottom portion of the recess 20 is preferably about 1/2 to 1/7 of the thickness when not squeezed. More preferably, it is about 1/4 to 1/7. With this configuration, the top sheet 14 and the absorber 13 are integrally formed, so that the top sheet 14 and the absorber 13 are firmly bonded to each other so that the top sheet 14 does not easily come off and the absorber 13 swells after urination. , The top sheet 14 is in a state along the groove, and the groove is maintained.

Further, in the present embodiment, the absorber 13 is provided with a recess forming region in which a plurality of recesses 20 formed by compression are formed, and a recess non-forming region in which the recess 20 is not formed. With this configuration, the non-recessed region acts as a weir, and the body fluid transmitted through the recess 20 can be blocked (or the momentum of the body fluid is weakened), so that it is possible to prevent lateral leakage. Become. In the absorbent article 10 according to the present invention, the recesses 20 are formed in a grid pattern in the absorber 13, but this is not the case in the absorbent article according to the present invention, and the recesses 20 are formed in the absorber 13. It is also acceptable that no is formed at all. Further, in the absorbent article according to the present invention, the recesses 20 formed in the absorber 13 are not limited to those having a lattice shape, but those formed in a vertical stripe shape in the longitudinal direction and those formed in a horizontal stripe shape in the width direction. , Those having various shapes can be adopted as long as the effect of the present invention is exhibited, such as those provided intermittently.

As shown in FIGS. 2 and 3, a pair of notches 11N forming an opening around the leg 10L are formed on both the left and right sides of the crotch portion 10C of the cover sheet 11. A pair of rubber threads 16 for forming gathers around the legs are adhered between the cover sheet 11 and the pair of side sheets 15 in an stretched state.

The top sheet 14 is made of a non-woven fabric having liquid permeability or the like. The back sheet 12 has moisture permeability and is joined to the skin surface side of the cover sheet 11, and the absorber 13 is arranged between the back sheet 12 and the top sheet 14 and is topped through the absorber 13. The sheet 14 is joined to the back sheet 12.

Further, in the area of the back sheet 12 corresponding to the upper end portion of the back body portion 10R, waist gathers extending along the width direction of the back sheet 12 to give the wearer an appropriate feeling of wearing around the waist are provided. The stretchable member 10D for forming is joined in a stretched state. In the present invention, the elastic member 10D includes, for example, an elastic sheet made of rubber thread, an elastic film, urethane foam, and the like.

The absorber 13 of the present embodiment, which is located under the top sheet 14, is an absorbent core 17 mainly composed of pulp and SAP coated with a covering member (core wrap) 18 such as a tissue or a non-woven fabric. The seam formed by wrapping the absorbent core 17 with the covering member 18 is formed, for example, on the upper surface of the absorbent body 13 so as to extend in the longitudinal direction, as shown in FIG. In the present invention, the mode of forming the seam is not limited to this. The absorber 13 of the present embodiment has an elongated shape so as to extend to the front body, inseam, and back body. The absorber 13 is divided into three parts: a back body portion, an inseam portion, and a front body portion. Here, assuming that the front body portion to the back body portion are in the front-back (up-down) direction and the direction orthogonal to the front-back (up-down) direction is the left-right direction, the absorber 13 of the present embodiment is a rectangular body having different front-back (up-down) left-right lengths. (In FIGS. 2 and 3, the front-back (upper and lower) length is longer than the left-right length). The shape of the absorber 13 of the present embodiment is not limited to this, and for example, a substantially square shape having the same front-back (up-down) left-right length, and a shape in which the front-back (up-down) end corners are rounded off. , Includes various shapes such as elliptical ones extending back and forth (up and down), circular ones, etc. Further, a pair of arcuate notches may be formed in the inseam portion of the absorber 13 so as to correspond to the pair of leg-circumferential openings 10L. In the diaper 10 according to the present embodiment, the absorbent body 13 wrapped with the covering member 18 is used, but the absorbent article according to the present invention uses the absorbent core 17 not wrapped with the covering member 18. You may.

A pair of hydrophobic side sheets 15 forming three-dimensional gathers are provided on the left and right side edges of the top sheet 14 in the width direction in the present embodiment. The pair of side seats 15 are members that stand up along the left and right side edges of the absorber 13 when worn to prevent lateral leakage of the discharged body fluid. A notch portion 15N is formed on the outer edge portion of the pair of side seats 15 in the same shape as the pair of notch portions 11N of the cover sheet 11. A thread rubber 19 as a three-dimensional gather elastic material is arranged in a stretched state on each of the pair of side sheets 15 so that the inner edge portion thereof is folded back toward the absorber 13 and gripped. When the thread rubber 19 contracts, the pair of side seats 15 stand up in the direction of contact with the wearer's skin. The three-dimensional gather can adopt the known configuration used for the conventional disposable diaper. For example, it can be formed by sandwiching and fixing a three-dimensional gather elastic material in a stretched state between layers of a water-repellent sheet.

<First colored area and second colored area>
As described above, the front patch sheet 10B is made of a transparent or translucent material, and the diaper 10 is provided with a first coloring region 21 (design display unit 32) having a first color, and the front is provided. The patch sheet 10B is attached to a component of the diaper 10 so as to overlap at least a part of the first colored region 21, and the first color is formed in the region where the front patch sheet 10B and the first colored region 21 overlap. A second colored region 22 having a second color different from that of is formed. In the present embodiment, the first colored region 21 is formed on the non-skin surface side of the front body portion 10F of the cover sheet 11, and when the Freon patch sheet 10B is attached to the front body portion 10F, the first colored region is formed. 21 is made of a transparent and visible material. In the present invention, the first colored region 21 may be formed in a place other than the above. The first colored region 21 may be provided on the skin surface side of the cover sheet 11. In this case, the cover sheet 11 is made of a transparent or translucent material so as to be visible from the non-skin surface, and the second colored region 22 is formed in the region where the first colored region 21 and the Freon patch sheet 10B overlap. Will be done. Further, in the present invention, the first colored region 21 may be formed in a place other than the front body portion 10F as long as it overlaps with the Freon patch sheet 10B.

In the present embodiment, in the manufacturing process of the diaper 10, for example, a first colored region located around the second colored region 22 and the second colored region 22 by an imaging unit (for example, a camera having a CMOS sensor) of an inspection device. 21 are imaged (or imaged together), respectively, and the hue, saturation, and saturation of the first color of the first colored area 21 and the second color of the second colored area 22 that have been imaged are determined by the processing unit of the inspection device. / Or the brightness is quantified and derived, and the determination unit of the inspection device determines whether or not the front patch sheet 10B is attached to the diaper 10 from the difference between the derived numerical values. Derivation of the difference in hue, saturation, and / or lightness may be performed, for example, by a colorimeter.

In the modified example of the above embodiment, the first colored region 21 may be formed on the non-skin surface side of the front body portion 10F of the back sheet 12. In this case, the front patch sheet 10B and the cover sheet 11 are made of a transparent or translucent material. With this configuration, in the manufacturing process of the diaper 10, it is possible to determine the attachment of the front patch sheet 10B from the difference between the first color of the first colored region 21 and the second color of the second colored region 22. Become. Further, in the present invention, the first colored region 21 is formed on the skin surface side of the front body portion 10F of the back sheet 12, and the front patch sheet 10B, the cover sheet 11, and the back sheet 12 are made of a transparent or translucent material. It may be configured. Even with this configuration, it is possible to obtain the same effect as that of the above embodiment.

Further, in the present embodiment, as shown in FIG. 4, the second colored region 22 is formed near the center of the front patch sheet 10B on the crotch portion 10C side, but the present invention is not limited to this, for example. The first colored region 21 has a width larger than the range in which the front patch sheet 10B is attached in the width direction, and the second colored region 22 formed when the front patch sheet 10B is attached is the front patch sheet 10B. It may be an embodiment provided so as to include the left and right ends of the above. With this configuration, not only can it be inspected whether the front patch sheet 10B is attached to the cover sheet 11, but also whether the front patch sheet 10B is arranged at an accurate position with respect to the cover sheet 11. It will also be possible to inspect whether or not.

Further, in the present invention, the size of the second colored region 22 exceeds the threshold value (or is less than the threshold value) and the position coordinates where the second colored region 22 exists are used as a reference for determining the attachment of the front patch sheet 10B. May be added to. This makes it possible to determine not only whether or not the front patch sheet 10B is attached, but also whether or not the front patch sheet 10B is attached in the correct posture and in the correct position.

In the attachment determination of the front patch sheet 10B in the present invention, it may be determined that the front patch sheet 10B is attached by detecting the color of the second colored region 22, or conversely, the front patch may be attached. It may be determined that the sheet 10B is not attached. The latter specific form will be described in detail in the second embodiment described later.

<engagement target display unit>
As described above, in the present embodiment, the engagement target display portion 31 is formed on the non-skin surface side of the cover sheet 11 of the front body portion 10F, and is engaged when the front patch sheet 10B is attached to the cover sheet 11. The target display unit 31 is transparent and can be visually recognized from the outside of the diaper 10. As shown in FIG. 4, it can be understood that the engagement target display unit 31 can be seen through. In the present invention, the engagement target display unit 31 may be provided on the skin surface side of the cover sheet 11. In this case, the cover sheet 11 is made of a transparent or translucent material so as to be visible from the non-skin surface.

In this embodiment, as shown in FIG. 4, the three pairs of engagement target display units 31 are represented by uppercase Roman letters "A", "B", and "C", respectively. The present invention is not limited to Roman characters, but may be other types of characters, symbols, figures, patterns, and combinations thereof.

The number and position of the engagement target display unit 31 correspond to the number and position of the fastening tape 10A. In the present invention, the number of engagement target display units 31 may be less than or more than three pairs.

Further, in the present embodiment, the front patch sheet 10B is attached at a position that does not overlap with the main portion of the design display unit 32 (a display portion that is 70% of the entire design display unit 32). With this configuration, it is possible to prevent the front patch sheet 10B from interfering with the display function of the design display unit 32.

Further, in the present embodiment, the engagement target display unit 31 is formed at a position that does not overlap with the design display unit 32. With this configuration, it is possible to make it easier for the user to recognize the engagement target display unit 31. Further, in the present embodiment, the front patch sheet 10B is attached at a position that does not overlap with the function display unit 33. With this configuration, it is possible to make it easier for the user to recognize the function display unit 33.

According to the present embodiment, when the front patch sheet 10B is attached to the front body portion 10F of the cover sheet 11, the engagement target display portion 31 can be seen through, so that the front patch sheet 10B for the diaper 10 can be seen through. Mounting accuracy is not required more than necessary, that is, even if the front patch sheet 10B is mounted slightly offset from the diaper 10, the engagement target display unit 31 does not disengage from the diaper 10, as in the conventional case. It is possible to prevent the engagement target display portion 31 from being formed in a misaligned manner, and to reduce the occurrence of defective products.

That is, conventionally, there are three positions: (a1) the mounting position of the fastening tape 10A on the cover sheet, (b1) the forming position of the engagement target display on the front patch sheet, and (c1) the mounting position of the front patch sheet on the cover sheet. In this embodiment, the attachment position of the fastening tape 10A with respect to the cover sheet 11 and the formation position of the engagement target display portion 31 with respect to the cover sheet 11 are required. As long as the accuracy of the two positions is guaranteed, the accuracy of the position of (c1) above becomes unnecessary, so that the probability of defective products can be suppressed accordingly.

In another modification of the above embodiment, in addition to the configuration capable of determining the attachment of the front patch sheet 10B based on the color difference between the first coloring region and the second coloring region described above, more accurate attachment determination is realized. In order to do so, the target of whether or not the front patch sheet 10B is attached to the diaper 10 (that is, for determining whether or not the front patch sheet 10B is attached to the diaper 10 by an inspection device) is an attachment target display unit. May be further provided. In this case, the mounting target display unit and the design display unit 32 are such that when the front patch sheet 10B is attached to the front body portion 10F, the mounting target display unit is assimilated with the design display unit 32 (or the mounting target display unit). Each unit may be configured (so that the unit forms a design in cooperation with the design display unit 32). The assimilation in this case includes those in which the positional relationship between the design display unit 32 and the mounting target display unit is not strictly required. With this configuration, it is possible to realize the above-mentioned highly accurate mounting determination without interfering with the display function of the design display unit 32. In the present invention, the mounting target display unit may be a character, a symbol, a figure, a pattern, or a combination thereof, in addition to a part of the design as described above.

In the modification of the above embodiment, the engagement target display portion 31 is formed on the front body portion 10F side and the non-skin surface side of the back sheet 12, and the front patch sheet 10B and the cover sheet 11 are attached to the back sheet 12. When this is done, the engagement target display unit 31 may be made of a material that can be seen through. That is, in the case of this configuration, the front patch sheet 10B and the cover sheet 11 are made of a transparent or translucent material.

With this configuration, when the front patch sheet 10B is attached to the front body portion 10F of the cover sheet 11 and the laminated body and the back sheet 12 are overlapped with each other, the engagement target display portion 31 formed on the back sheet 12 is formed. Since it can be seen through and visible, the engagement target display unit 31 is prevented from being formed in a misaligned manner as a result of not requiring the attachment accuracy of the front patch sheet 10B to the diaper 10 more than necessary. , It is possible to reduce the occurrence of defective products. Further, in the present invention, the engagement target display portion 31 is formed on the front body portion 10F side and the skin surface side of the back sheet 12, and the front patch sheet 10B, the cover sheet 11, and the back sheet 12 are overlapped with each other. At that time, the engagement target display unit 31 may be made of a transparent and visible material. Even with this configuration, it is possible to obtain the same effect as that of the above embodiment.

Conventionally, a second engaging member is attached to a deployable type among absorbent articles in order to repeatedly and detachably attach a pair of first engaging members, and in the manufacture of an absorbent article having the above-mentioned structure, a second engaging member is attached. 2 It will be inspected whether the engaging member is attached in the correct position with respect to the constituent members of the absorbent article. This inspection is performed by a mounting determination display formed on the second engaging member by printing or the like. Since the mounting determination display is formed in a simple shape of a certain size in order to perform accurate position determination, substantially the entire absorbent article may be composed of a single color such as white. If a design is drawn on the absorbent article, the attachment determination display may spoil the appearance of the absorbent article.

According to the present embodiment, the front patch sheet 10B is made of a transparent or translucent material, and the front patch sheet 10B is attached so as to overlap at least a part of the first colored region 21. With the configuration including the colored region 22, in the manufacturing process of the diaper 10, the attachment determination of the front patch sheet 10B is performed from the difference between the first color of the first colored region 21 and the second color of the second colored region 22. Therefore, it is not necessary to provide the second engaging member with a mounting determination display formed in a simple shape having a certain size, and the appearance of the diaper 10 can be easily maintained and the diaper 10 can be easily used. The front patch sheet 10B can be accurately attached to the cover sheet 11.

<Second Embodiment>
In the present embodiment, unlike the first embodiment, a sticking target portion 35 as a target for sticking the front patch sheet 10B is provided, the color of the sticking target portion 35 is set as the first coloring region, and the sticking target portion 35 is used as a reference. When the front patch sheet 10B is placed so as to overlap the front patch sheet 10B on the sticking target portion 35, the color of the overlapped portion (that is, the color of the second colored region) is detected. When the device detects it, the diaper is determined to be defective. With this configuration, it is possible to easily detect an error in the process of attaching the front patch sheet 10B.

FIG. 6 is a plan view of the stretched diaper according to the present embodiment as viewed from the backsheet side, and has a first colored region on the backsheet side of the diaper as a target for attaching the front patch sheet 10B. , Is a diagram for explaining that a pasting target portion having a frame shape is provided and the front patch sheet is pasted in the frame, and FIG. 6A is a diagram in which the front patch sheet is pasted in the frame. FIG. 6B shows a case where the front patch sheet is attached out of the frame, and the second colored region overlaps with the first colored region attached to the application target portion to form the second colored region. The figure when it appears is shown. Among the elements constituting the absorbent article according to the present embodiment, those having the same function are designated by the same reference numerals as those in the first embodiment, and the description thereof will be omitted.

As shown in FIG. 6, in the present embodiment, a sticking target portion 35 indicating where the front patch sheet 10B should be pasted is provided, and the sticking target portion 35 is formed in the first colored region and has a frame shape. Have. As shown in FIG. 6, the frame of the sticking target portion 35 is a region offset so as to be slightly larger (for example, 1 mm or more) outside the outer contour of the front patch sheet 10B, and is within the frame of the sticking target portion 35. , The front patch sheet 10B can be inserted (see FIG. 6A). If the front patch sheet 10B is pasted within the frame of the sticking target portion 35, the front patch sheet 10B is properly pasted. This pasting determination is made, for example, when the front patch sheet 10B is pasted so as to be out of the frame of the pasting target portion 35 and overlap the pasting target portion 35 when the front patch sheet 10B is pasted. It is realized by determining that the front patch sheet 10B is not properly attached because the second colored region, which is the color region of the portion, is detected by the detection device.

According to the present embodiment, in addition to the effect obtained by the first embodiment, the Freon patch sheet is detected by detecting the color of the second colored region that deviates from the sticking target portion 35 and overlaps with the sticking target portion 35. Since it is possible to determine the attachment of the 10B, it is possible to easily detect an error in the process of attaching the front patch sheet 10B.

In the present embodiment, the sticking target portion 35 has a frame shape, but is not limited to this shape in the present invention, and may have various shapes that function as a sticking target of the front patch sheet 10B.

<Third Embodiment>
In the present embodiment, unlike the first embodiment and its modifications, an engagement target representing an engagement target of the pair of fastening tapes 10A with the front patch sheet 10B on the non-skin surface side of the cover sheet 11 of the front body portion 10F. Apart from the display unit (hereinafter referred to as "first engagement target display unit" for easy distinction) 31, the size is smaller and the shape is simpler than the first engagement target display unit 31, and / or. A second engagement target display unit 34 having a color close to the peripheral color is provided between the plurality of first engagement target display units 31. With this configuration, the number of engagement target display units increases as the scale of the ruler increases without disturbing the design provided on the front patch sheet 10B (or its periphery) as compared with the first embodiment. The fastening tape 10A can be attached to the front patch sheet 10B at an accurate position for the user, as compared with the first embodiment.

FIG. 7 is a plan view of the stretched diaper according to the present embodiment as viewed from the backsheet side. Among the elements constituting the absorbent article according to the present embodiment, those having the same function are designated by the same reference numerals as those in the first embodiment, and the description thereof will be omitted.

In the present embodiment, as shown in FIG. 7, the plurality of second engagement target display units 34 are arranged at predetermined intervals like the first engagement target display unit 31 of the first embodiment, and are arranged on the left and right sides. It is provided in two pairs. As shown in FIG. 7, the first engagement target display unit 31 and the second engagement target display unit 34 are provided so that the distances from the center in the width direction (left-right direction) are different from each other. In the present embodiment, each of the plurality of second engagement target display units 34 has a circular shape, is smaller in size than the first engagement target display unit 31, and is a front patch of the diaper 10. It has a color similar to the base color of the sheet 10B portion. Here, the base color of the front patch sheet 10B portion is more specifically, the front when the front patch sheet 10B is attached to the cover sheet 11 of the diaper 10 and then viewed from the outside of the diaper 10. It is the color that occupies most of the patch sheet 10B. Further, the design of the front patch sheet 10B includes a case where the base is not colored and is in a plain state (for example, white), and may include the design of the first engagement target display unit 31 itself. The first engagement target display unit 31 has, for example, a color having a hue different from that of the base of the front patch sheet 10B portion so that the user can easily identify the first engagement target display unit 31. In the present embodiment, the plurality of second engagement target display units 34 are arranged in the middle (equidistant distance) of the plurality of adjacent first engagement target display units 31. In the present embodiment, the second engagement target display unit 34 has a circular shape, but the present invention is not limited to this shape.

The size of the second engagement target display unit 34 is, for example, 50% or less as compared with the first engagement target display unit 31. The color of the second engagement target display unit 34 has, for example, the same hue as the base color of the front patch sheet 10B portion around the area where the second engagement target display unit 34 is arranged, and has the same hue, brightness, and lightness. / Or a color with different saturation (high saturation, etc.).

Conventionally, in deployable disposable diapers, in order to achieve both the accurate alignment of the fastening tape with respect to the front patch sheet and the design of the part where the front patch sheet is provided, it has a design and to some extent. It is conceivable to provide a plurality of engagement target display portions on the front patch sheet side of the diaper at relatively close intervals, which have the same size as the diaper. It is difficult to grasp the matching position, and as a result, it is not possible to achieve accurate alignment of the fastening tape with respect to the front patch sheet, and the engagement target display units are arranged at close intervals. It is expected that the appearance as a design will not be good. That is, if there are many targets for attaching the fastening tape, not only the design of the target zone of the fastening tape becomes noisy, but also it becomes difficult to distinguish each of them, and it may be difficult to appropriately attach the fastening tape.

According to the present embodiment, the size of the second engagement target display unit 34 is smaller than the size of the first engagement target display unit 31, and / or the color of the second engagement target display unit 34 is the diaper 10. Since it is close to the base color (or the color around the second engagement target display unit 34) of the front patch sheet 10B portion of the front patch sheet 10B, the second engagement target display unit 34 is provided with the front patch sheet 10B. It will not interfere with the design of the existing part. Further, according to the present embodiment, the number of engagement target display units is increased as compared with the first engagement target display unit 31, and the engagement target of the fastening tape 10A with respect to the front patch sheet 10B is increased, so that the fastening tape 10A is more accurate. Alignment is possible.

<Others>
The present invention is not limited to the above-described embodiments and modifications described everywhere, and can be appropriately modified or modified without departing from the technical idea of the present invention.

For example, the structure of the diaper according to the above-described embodiment or its modification is not limited to the above-mentioned expansion type, and any absorbent article as long as it is an absorbent article specified in the claims. It may be a configuration. The present invention is applicable to any absorbent article that can be attached by the first and second engaging members described above, such as a tape-shaped exterior body into which a urine pad can be placed. It is also applicable to the absorbent article of.

In addition, the above-described embodiment or a modification thereof is applicable not only to diapers for infants but also to various absorbent articles such as diapers for adults.

10 Diapers 10A Fastening tape (1st engaging member)
10B front patch sheet (second engaging member)
10F Front body 10R Back body 10C Inseam 10W Waist opening 10L Leg opening 11 Cover sheet 11N, 15N Notch 12 Back sheet (back sheet)
13 Absorber 14 Top sheet (surface sheet)
15 Side sheet 16, 19 Thread rubber 17 Absorbent core 18 Coating member 20 Recess 21 First colored area 22 Second colored area 31 Engagement target display unit (first engagement target display unit)
32 Design display unit 33 Function display unit 34 Second engagement target display unit 35 Pasting target unit

Claims (16)

The front body portion, the back body portion, the crotch portion located between the front body portion and the back body portion, and the longitudinal direction extending from the front body portion side to the back body portion side via the crotch portion. A pair of a liquid-permeable front sheet, a liquid-impermeable back sheet, and an absorber arranged between the front surface sheet and the back surface sheet in a width direction orthogonal to the longitudinal direction. An absorbent article comprising one engaging member and a second engaging member that engages with the pair of first engaging members to form a pair of leg-circumferential openings in the absorbent article.
The second engaging member is made of a transparent or translucent material.
The absorbent article is provided with a first colored region having a first color.
The second engaging member is attached to the constituent member of the absorbent article so as to overlap at least a part of the first colored region.
An absorbent article characterized in that a second colored region having a second color different from the first color is formed in a region where the second engaging member and the first colored region overlap. The pair of first engaging members are provided on the left and right end edges of the rear body portion.
The second engaging member is attached to the front body portion and is attached to the front body portion.
The first colored region is formed on the front body portion and is formed.
The absorbent article according to claim 1, wherein the second engaging member is made of a material through which the first colored region can be seen through when attached to the front body portion. .. A cover sheet is arranged on the non-skin surface side of the back sheet.
The absorbent article according to claim 1 or 2, wherein the first colored region is formed on the cover sheet of the front body portion. In the front body part, a design display part is formed.
The absorbent article according to any one of claims 1 to 3, wherein the design display unit includes the first colored region. The absorbent article is provided with an engagement target display portion indicating an engagement target of the pair of first engaging members with respect to the second engaging member, and the second engaging member is the absorbent article. The absorbent article according to claim 1 or 2, wherein the engagement target display portion is made of a material that can be seen through when attached to a component member. The engagement target display portion is formed on the front body portion and is formed on the front body portion.
The absorbability according to claim 5, wherein the second engaging member is made of a material through which the engaging target display portion can be seen through when the second engaging member is attached to the front body portion. Goods. The absorbent article according to claim 5 or 6, wherein the engagement target display portion is provided in three pairs at equal intervals from the central portion in the width direction of the absorbent article. A cover sheet is arranged on the non-skin surface side of the back sheet.
The absorbent article according to any one of claims 5 to 7, wherein the engagement target display portion is formed on the cover sheet of the front body portion. The absorbent article according to any one of claims 5 to 8, wherein a design display portion is formed in the front body portion. The second engaging member is formed with an attachment target display portion that serves as a target for whether or not the second engaging member is attached to the front body portion.
The mounting target display unit and the design display unit are configured so that the mounting target display unit is assimilated with the design display unit when the second engaging member is attached to the front body portion. The absorbent article according to claim 9. The absorbent article according to claim 9, wherein the second engaging member is attached to a position that does not overlap with the main portion of the design display portion. The absorbent article according to claim 9, wherein the engagement target display portion is formed at a position that does not overlap with the design display portion. A function display unit is formed on the front body portion.
The absorbent article according to any one of claims 1 to 12, wherein the second engaging member is attached at a position that does not overlap with the function display unit. A sticking target portion that is a target for attaching the second engaging member to the constituent member of the absorbent article is provided.
The absorbent article according to any one of claims 1 to 13, wherein the sticking target portion is composed of the first colored region. The engagement target display unit is characterized by including a plurality of first engagement target display units and a second engagement target display unit located between the plurality of first engagement target display units. The absorbent article according to any one of claims 5 to 12. The absorbent article according to any one of claims 1 to 15, wherein the absorber has recesses formed in a grid pattern.

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