JP6926382B2 - Pants type absorbent goods - Google Patents

Description

The present invention relates to a pants-type absorbent article having good breathability and a good feel of a non-woven fabric sheet.

Conventionally, pants-type disposable diapers (pants-type absorbent articles) have been used to absorb excrement of infants, adults, and sick people. The pants-type absorbent article forms a waist opening and a pair of leg openings, and also has an absorbent body that absorbs excrement and an exterior body that is a support member thereof, and the absorbent body is worn from the front and back. It covers the crotch part of. Then, the wearer's feet are put into the leg openings, and the body of the disposable diaper is pulled up around the waist to be worn.

In such a pants-type absorbent article, elastic elastic members are arranged between the non-woven fabric sheets constituting the exterior body around the front and rear waist, around the front and back waist, around the left and right legs, and the crotch. Then, elastic elastic members arranged in each part form gathers, and by fitting the absorbent article to the wearer's body, leakage of body fluid is prevented and a comfortable wearing feeling is given. There is. However, in some cases, these stretchable elastic members may overtighten the body, which impedes air permeability from the absorbent article to the outside, and the gathered folds rub the skin, making it uncomfortable to the touch. It may cause pleasure.

As an invention for dealing with such a problem, for example, Patent Document 1 describes a composite elastic member having an elastic portion composed of two sheet materials and a plurality of elastic members arranged between the two sheet materials. The two sheet materials are intermittently joined to each other in the expansion / contraction direction of the expansion / contraction portion and the direction perpendicular to the expansion / contraction portion, and the elastic members are arranged in the expansion / contraction portion so as not to pass through the joint portion between the two sheets. A composite elastic member that is fixed to both sheet materials at both ends thereof, and each of the two sheet materials forms a plurality of folds that extend continuously over a plurality of elastic members. It is disclosed.

Further, Patent Document 2 describes a disposable diaper in which a cushion portion is formed on both or one of the front body and the back body, and the cushion portion is a non-skin facing surface of the inner sheet and the inner sheet. The outer sheet located on the side and one or more waist elastic members that are sandwiched and fixed between the inner sheet and the outer sheet while extending along the width direction of the disposable diaper, and both the inner sheet and the outer sheet. Or includes a cushion-forming sheet that is stacked on either side and intermittently joined so that the joints and non-joins are alternately continuous in the width direction, and the joints are respectively along the longitudinal direction. It is formed by arranging two or more rows of straight joint lines that extend, and the distance between the joints is defined as the first distance, and the distance between the rows of joint lines in the joint is the second. Disposable diapers are disclosed in which the second interval is narrower than the first interval when defined as the interval of.

Further, Patent Document 3 describes a pants-type absorbent article including a top sheet, a back sheet, and an absorbent body, which is composed of an absorbent main body extending in the longitudinal direction, an interior sheet, and an exterior sheet, and has an exterior. A pants-type absorbent article is disclosed in which the sheet is formed of an air-through non-woven fabric made of low-fine fibers.

Japanese Unexamined Patent Publication No. 2005-080859 Japanese Unexamined Patent Publication No. 2016-042917 Japanese Unexamined Patent Publication No. 2010-035581

However, the breathability of the pants-type absorbent article utilizing the inventions described in Patent Documents 1 and 2 and the feel of the non-woven fabric sheet are still unsatisfactory, and in particular, the absorbent article is worn on the back. It has been pointed out that when sleeping, the air permeability to the outside is hindered, especially in the dorsal region, and stuffiness and rashes are likely to occur. Therefore, the present invention has been made in view of the above problems, and even when lying on its back while wearing it, the breathability and the feel of the non-woven fabric sheet are good, including the dorsal region. It is an object of the present invention to provide a pants type absorbent article.

In view of the above problems, the inventors of the present invention have conducted diligent research. As a result, in the pants-type absorbent article composed of the absorbent body, the ventral band member, and the dorsal band member, the interior non-woven fabric sheet of the ventral band member and the dorsal band member is made into a non-woven fabric having an uneven embossed pattern. , The interior non-woven fabric sheet and the stretchable elastic member are configured so as to be joined to the bottom of the uneven embossed pattern of the interior non-woven fabric sheet in a stretched state, and the interior non-woven fabric of the ventral band member. It has been found that the above-mentioned problems can be solved by the pants-type absorbent article in which the embossing pattern of the unevenness is different between the sheet and the interior non-woven fabric sheet of the backside band member, and the present invention has been completed. Specifically, the present invention provides the following.

(1) In the first aspect of the present invention, a waist opening is formed on the upper part of the ventral part and the dorsal part, and leg openings are formed on both sides of the crotch part between the ventral part and the dorsal part. A ventral band member that forms a portion and is overlapped from the non-skin contact surface side on the absorbent main body and the front end portion that is one end in the longitudinal direction of the absorbent main body, and a member separate from the ventral band member. The absorbent body is a pants-type absorbent article having a dorsal band member overlapped from the non-skin contact surface side at the rear end portion which is the other end in the longitudinal direction of the absorbent body. The ventral band member and the dorsal band member are composed of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber arranged between the top sheet and the back sheet. It is composed of an interior non-woven sheet facing the side, an exterior non-woven sheet facing the non-skin contact surface side, and a plurality of elastic elastic members arranged between the interior non-woven sheet and the exterior non-woven sheet. The interior non-woven sheet is a non-woven fabric having a concavo-convex embossing pattern, and the interior non-woven sheet and the stretchable elastic member are the concavo-convex embossed patterns of the interior non-woven sheet in a state where the stretchable elastic member is stretched. It is a pants-type absorbent article that is joined to the bottom and has different embossing patterns of the unevenness of the interior non-woven sheet between the ventral band member and the dorsal band member.

(2) The second aspect of the present invention is the pants-type absorbent article according to (1), wherein the uneven embossing pattern formed on the interior non-woven sheet is a series of circles, ellipses, or polygons. In the interior non-woven sheet of the ventral band member, which consists of a pattern, a straight line connecting the centers of adjacent circles, ellipses, or polygons in the front and rear has a predetermined angle with respect to the longitudinal direction of the pants-type absorbent article. On the other hand, the interior non-woven sheet of the dorsal band member is characterized in that the straight line connecting the centers of the circles, ellipses, or polygons adjacent to each other in the front-rear direction is parallel to the longitudinal direction of the pants-type absorbent article. Is.

(3) A third aspect of the present invention is the pants-type absorbent article according to (1) or (2), wherein the interior non-woven fabric sheet of the ventral band member is in the longitudinal direction of the pants-type absorbent article. The dimension is 40 mm or more and 80 mm or less, and the dimension of the interior non-woven fabric sheet of the backside band member in the longitudinal direction of the pants-type absorbent article is 50 mm or more and 100 mm or less.

(4) A fourth aspect of the present invention is the pants-type absorbent article according to any one of (1) to (3), wherein the height of the convex portion of the uneven embossed pattern of the interior nonwoven fabric sheet is high. Is 1.0 mm or more and 3.0 mm or less in a state where the ventral band member and the dorsal band member are extended by 200% in the width direction of the pants type absorbent article, and the ventral band member and the dorsal band member are extended. It is characterized in that it is 2.0 mm or more and 6.0 mm or less in the non-woven fabric state.

(5) A fifth aspect of the present invention is the pants-type absorbent article according to any one of (1) to (4), wherein the uneven embossing pattern of the interior nonwoven fabric sheet is the ventral band member. And, in a state where the dorsal band member is extended by 200% in the width direction of the absorbent article, the dimension in the longitudinal direction of the pants type absorbent article is 3.0 mm or more and 7.0 mm or less, and the width direction of the pants type absorbent article. The dimension of the pants type absorbent article is 3.0 mm or more and 7.0 mm or less in the state where the ventral band member and the dorsal band member are not extended. The width direction of the pants-type absorbent article is 3.0 mm or more and 7.0 mm or less.

(6) A sixth aspect of the present invention is the pants-type absorbent article according to any one of (1) to (5), wherein the interior nonwoven fabric sheet is an air-through nonwoven fabric or a spunbonded nonwoven fabric. It is characterized by.

(7) A seventh aspect of the present invention is the pants-type absorbent article according to any one of (1) to (6), wherein the interior non-woven fabric sheet and the elastic elastic member are said to be elastic. It is characterized in that it is adhered via a hot melt adhesive interposed only in the elastic member.

(8) An eighth aspect of the present invention is the pants-type absorbent article according to any one of (1) to (7), wherein the interior nonwoven fabric sheet and the exterior nonwoven fabric sheet are elastic. It is characterized in that it is joined by heat or ultrasonic waves at a portion where an elastic member does not exist.

In the pants-type absorbent article of the present invention, a non-woven fabric having an uneven embossed pattern is used as the interior non-woven fabric sheet that comes into direct contact with the wearer's skin. Since the non-woven fabric having the embossed pattern of unevenness has a soft touch, the use of such a non-woven fabric as the interior non-woven fabric sheet makes the pants-type absorbent article feel good to the touch. Further, in the pants-type absorbent article of the present invention, a plurality of stretchable elastic members are arranged between the exterior non-woven fabric sheet and the interior non-woven fabric sheet, and when the stretchable elastic members are stretched, the unevenness of the interior non-woven fabric sheet is uneven. The interior non-woven fabric sheet and the elastic elastic member are joined in a state of being joined to the bottom of the embossed pattern. As a result, when the pants-type absorbent article is worn, a gap is formed between the interior non-woven fabric sheet and the wearer's skin, and the breathability of the pants-type absorbent article is maintained well. Furthermore, since the embossed pattern of the interior non-woven fabric sheet is different between the ventral band member and the dorsal band member, even if the interior non-woven fabric sheet is laid on its back while wearing it, it is breathable including the dorsal area. In addition, the non-woven fabric sheet has a good feel to the touch.

It is a perspective view of the pants type absorbent article of this invention. It is a development view of the pants type absorbent article of this invention. (A) A plan view of the interior non-woven fabric sheet when the ventral band member is stretched by 200% and when it is not stretchable; and a cross-sectional view showing the state of the interior non-woven fabric sheet, the stretchable elastic member, and the exterior non-woven fabric sheet; and (b). ) A plan view of the interior nonwoven fabric sheet when the dorsal band member is extended by 200% and when it is not stretched; and a cross-sectional view showing the state of the interior nonwoven fabric sheet, the stretchable elastic member, and the exterior nonwoven fabric sheet.

Hereinafter, the pants-type absorbent article 1 according to the embodiment of the present invention will be described. The position on the ventral side of the wearer when the pants type absorbent article 1 is worn is referred to as "front" or "front side", and the position on the back side of the wearer is referred to as "rear" or "rear side". Refer to. Further, the surface that becomes the skin side of the wearer when the pants type absorbent article 1 is worn is referred to as "inside".

<Pants type absorbent goods>
The pants-type absorbent article 1 has a non-skin contact on an absorbent main body 20 having an elongated shape in the front-rear direction that covers the wearer's crotch portion from the front and back, and a front end portion that is one end in the longitudinal direction of the absorbent main body 20. The ventral band member 30 stacked from the contact surface side and the ventral band member 30 are stacked as separate members from the non-skin contact surface side on the rear end portion which is the other end portion in the longitudinal direction of the absorbent body 20. It has a dorsal band member 31. Then, as shown in FIG. 1, the pants-type absorbent article 1 has a waist opening 11 at the upper part of the ventral portion 13 and the dorsal portion 15, and a crotch portion 14 between the ventral portion 13 and the dorsal portion 15. Leg openings 12 are formed on both the left and right sides of the body, and are roughly divided into a ventral portion 13 that abuts on the wearer's abdomen, a dorsal portion 15 that abuts on the wearer's back, and an absorbent body 20. It is divided into the crotch portion 14.

[Absorbable body]
As shown in FIG. 2, the absorbent body 20 comprises a liquid-permeable top sheet 24, a liquid-impermeable back sheet 25, and an absorber 29 arranged between the top sheet 24 and the back sheet 25. include.

(Top sheet)
The top sheet 24 may be formed of a base material having a liquid permeability that allows body fluid to move to the absorber 29. For example, a non-woven fabric such as a thermal bond non-woven fabric or a spunbond non-woven fabric, or a thermal bond / spunbond is laminated. It is composed of a material that is soft to the touch and does not irritate the skin, such as a hydrophilic non-woven fabric material such as a composite non-woven fabric. Further, the surface of the top sheet 24 may be embossed or perforated in order to improve the liquid permeability. As a method for performing these embossing and drilling processes, known methods can be carried out without limitation. Further, in order to reduce irritation to the skin, the top sheet 24 may contain a lotion, an antioxidant, an anti-inflammatory component, a pH adjuster, an antibacterial agent, a moisturizer and the like. Further, from the viewpoint of strength and workability, the basis weight of the top sheet 24 ^{is preferably 18 g / m 2} or more and 40 g / m ² or less. The shape of the top sheet 24 is not particularly limited, but may be any shape that covers the absorber 29, which is required to guide the body fluid to the absorber 29 so as not to leak.

(Back sheet)
The back sheet 25 may be formed by using a base material having a liquid impermeable property so that the body fluid held by the absorber 29 does not wet the clothes, and is formed of a breathable or non-breathable resin film. NS. Here, examples of the resin film that can be used include polyester, polyvinyl alcohol, polyethylene, polypropylene, and a composite film of polyethylene and polypropylene. From the viewpoint of strength and workability, the basis weight of the back sheet 25 ^{is preferably 15 g / m 2} or more and 40 g / m ² or less. Further, in order to prevent stuffiness during mounting, it is preferable to use a breathable resin film as the back sheet 25. In order to provide the back sheet 25 with breathability, for example, a filler may be blended in the resin film of the base material, or the back sheet 25 may be embossed. Calcium carbonate can be mentioned as the filler, and a known method can be used without limitation as the blending method.

(Absorber)
The absorbent body 20 has an absorber 29 arranged between the top sheet 24 and the back sheet 25. The absorber 29 contains an absorbent fiber as a base material and a super absorbent polymer (SAP). The absorbent fiber is not particularly limited as long as it is generally used for absorbent articles such as sanitary napkins, diapers and urine absorbing pads. For example, fluff pulp, cotton, rayon, acetate, tissue, absorbent paper and hydrophilic fiber are used. Examples include rayon. Among these, it is preferable to use fluff pulp from the viewpoint of absorbability. Examples of such fluff pulp include those obtained by defibrating wood pulp, synthetic fiber, polymer fiber, non-wood pulp and the like into a cotton-like shape. The absorbent fiber of the absorber 29 preferably has a basis weight of ^{100 g / m 2} or more and 800 g / m ² or less so as not to impair the absorption performance and the touch.

The highly water-absorbent polymer used for the absorber 29 is not particularly limited as long as it can absorb body fluids and prevent backflow, and is sodium polyacrylate-based, polyaspartate-based, (starch-acrylic acid). Those formed from materials such as an acid) graft copolymer, a (acrylic acid-vinyl alcohol) copolymer, a (isobutylene-maleic anhydride) copolymer and a saponified product thereof can be used. Among these, sodium polyacrylate is preferable from the viewpoint of the amount of absorption per weight. ^{The SAP amount of the absorber 29 is preferably 50 g / m 2} or more and 500 g / m ² or less, and the content is 15% by mass or more and 50% by mass or less so as not to impair the absorption performance and the touch. Is preferable.

The form of the absorbent fiber and SAP in the absorber 29 is preferably the form of a laminated mat formed by mixing SAP particles in the absorbent fiber. Further, for the purpose of preventing leakage of SAP particles and stabilizing the shape of the absorber 29, it is preferable to wrap the absorber 29 in a carrier sheet. The base material of the carrier sheet may be any one having hydrophilicity, and examples thereof include hydrophilic non-woven fabrics such as tissue, absorbent paper, and air-laid non-woven fabric. When a plurality of carrier sheets are provided, the base materials of the carrier sheets may be the same or different.

The absorber 29 may be composed of two or more layers of absorbers, and may be, for example, one in which an upper layer absorber and a lower layer absorber are laminated. In this case, the dimensions of the upper layer absorber and the lower layer absorber in the longitudinal direction and the width direction may be larger than the dimensions of the lower layer absorber, and the dimensions of the upper layer absorber are the same as the dimensions of the lower layer absorber. The size of the upper layer absorber may be smaller than the size of the lower layer absorber.

[Ventral band member, dorsal band member]
The ventral band member 30 and the dorsal band member 31 are formed so as to be overlapped with the front end portion and the rear end portion, which are the ends of the absorbent body 20, from the non-skin contact surface side, and the ventral band member 30 is formed. The waist opening 11 and the leg opening 12 are formed by joining the 30 and both ends in the width direction of the dorsal band member 31, respectively, forming the outer surface of the pants-type absorbent article 1 and non-woven fabric contact. It is composed of exterior non-woven fabric sheets 301, 311 facing the surface side and interior non-woven fabric sheets 302, 312 facing the skin contact surface side on the body side of the exterior non-woven fabric sheets 301, 311.

(Exterior non-woven fabric sheet and interior non-woven fabric sheet)
As described above, the exterior non-woven fabric sheets 301, 311 and the interior non-woven fabric sheets 302, 312 are folded in half along the center line of the absorbent main body 20 so that the absorbent main body 20 is on the inside, and the ventral side portion 13 and the dorsal side portion are formed. Both side edges of 15 are connected with overlapping portions. As a result, the exterior non-woven fabric sheets 301 and 311 form the elastic waist opening 11 and the pair of leg openings 12, and the pants-type absorbent article 1 is formed into a detachable pants shape as a whole. When the pants-type absorbent article 1 is worn, the ventral portion 13 covers the lumbar region on the ventral side of the wearer, and the dorsal portion 15 covers the lumbar region on the back side of the wearer.

Interior non-woven fabric sheets 302 and 312 are laminated inside the exterior non-woven fabric sheets 301 and 311 to increase the strength of the ventral band member 30 and the dorsal band member 31. The exterior non-woven fabric sheets 301, 311 and the interior non-woven fabric sheets 302, 312 are non-woven fabrics such as thermal bonded non-woven fabrics, air-through non-woven fabrics, and spun-bonded non-woven fabrics, preferably air-through non-woven fabrics or spunbonded non-woven fabrics, such as polypropylene, polyester, and polyethylene. A non-woven fabric made of the thermoplastic resin of No. 1 can be used. When these non-woven fabrics are used, the basis weight thereof may be 18 g / m ² or more and 40 g / m ² or less.

In the pants-type absorbent article 1 of the present invention, the interior non-woven fabric sheets 302 and 312 are non-woven fabrics having an uneven embossed pattern. Since the interior non-woven fabric sheets 302 and 312 have an uneven embossed pattern, the pants-type absorbent article 1 has a good feel when worn. The embossing patterns formed on the interior non-woven sheets 302 and 312 include round shapes such as circles and ellipses, and polygonal embossings such as triangles, quadrangles, pentagons, hexagons, heptacorns, octagons, nonagons, and decagons. A pattern can be mentioned, in which the longitudinal dimension and the width dimension may be the same or different, but the ventral band member 30 and the dorsal band member 31 are extended by 200% in the width direction of the absorbent article. In this state, it is preferable that the dimension of the pants-type absorbent article 1 in the width direction is larger than the dimension of the pants-type absorbent article 1 in the longitudinal direction. Here, the "200% stretched state" is defined as a state in which the dimension in the non-stretched state is 100% and is doubled from the dimension in the non-stretched state. More specifically, as shown in FIG. 3, in a state where the ventral band member 30 and the dorsal band member 31 are extended by 200% in the width direction of the absorbent article, the embossed pattern in the longitudinal direction of the pants type absorbent article 1 The dimension is preferably 3.0 mm or more and 7.0 mm or less, and the width direction dimension of the pants type absorbent article 1 is preferably 7.0 mm or more and 13.0 mm or less, and the ventral band member 30 and the back. The dimensions of the pants-type absorbent article 1 in the longitudinal direction and the width direction are preferably 3.0 mm or more and 7.0 mm or less in a state where the side band member 31 is not extended in the width direction of the absorbent article. Further, the height of the convex portion of the embossed pattern of the unevenness is 1.0 mm or more and 3.0 mm or less in a state where the ventral band member 30 and the dorsal band member 31 are extended by 200% in the width direction of the absorbent article. Preferably, the ventral band member 30 and the dorsal band member 31 are 2.0 mm or more and 6.0 mm or less in a state where they are not extended in the width direction of the absorbent article. It is preferable that the interior non-woven fabric sheets 302, 312 and the exterior non-woven fabric sheets 301, 311 are joined by heat or ultrasonic waves at a portion where the elastic elastic member described later does not exist.

In the present invention, the ventral band member 30 and the dorsal band member 31 have different embossed patterns of the unevenness of the interior non-woven fabric sheets 302 and 312. Specifically, in the interior non-woven sheet 302 of the ventral band member 30, the uneven embossing pattern is composed of a continuous pattern of circles, ellipses, or polygons, and connects the centers of the circles, ellipses, or polygons adjacent to each other in the front-rear direction. While the straight line has a predetermined angle with respect to the longitudinal direction of the pants type absorbent article 1, in the interior non-woven sheet 312 of the back side band member 31, the uneven embossing pattern is a circle, an ellipse, or a polygon. It is preferable that a straight line connecting the centers of circles, ellipses, or polygons adjacent to each other in the front-rear direction is parallel to the longitudinal direction of the pants-type absorbent article 1. By adopting such a configuration, even when lying on the back while wearing the pants-type absorbent article 1, the breathability of the pants-type absorbent article 1 including the dorsal area and the non-woven fabric sheet It feels good on the skin.

The dimension of the interior non-woven fabric sheet 302 of the ventral band member 30 in the longitudinal direction of the pants-type absorbent article 1 is preferably 40 mm or more and 80 mm or less, and the pants-type absorbent article 312 of the interior non-woven fabric sheet 312 of the dorsal band member 31. The dimension of 1 in the longitudinal direction is preferably 50 mm or more and 100 mm or less. Further, the interior non-woven fabric sheet 302 of the ventral band member 30 preferably overlaps the absorbent body 20 and the pants-type absorbent article 1 in the longitudinal direction by 20 mm or more and 30 mm or less, and the interior non-woven fabric of the back side band member 31. It is preferable that the sheet 312 overlaps the absorbent body 20 and the pants-type absorbent article 1 in the longitudinal direction by 20 mm or more and 40 mm or less. By setting the dimensions of the interior non-woven fabric sheets 302 and 312 within the above range, the breathability of the pants-type absorbent article 1 and the feel of the non-woven fabric sheet can be improved, including the dorsal region. can.

[Elastic elastic member]
In the pants-type absorbent article 1 of the present invention, the exterior non-woven fabric sheets 301, 311 and the interior are provided on the periphery of the waist opening 11, the periphery of the leg opening 12, the ventral side 13, the dorsal side 15, and the crotch 14. A plurality of elastic elastic members are arranged between the non-woven fabric sheets 302 and 312, and these are joined to the exterior non-woven fabric sheets 301 and 311 and the interior non-woven fabric sheets 302 and 312. Then, in a stretched state, the elastic elastic member is joined to the bottom of the uneven embossed pattern of the interior non-woven fabric sheets 302 and 312. By adopting such a configuration, when the pants type absorbent article 1 is worn, folds along the uneven embossed pattern are formed on the interior non-woven fabric sheets 302 and 312, and the wearer and the pants type absorbent Since a gap is maintained between the interior non-woven fabric sheets 302 and 312 of the article 1, the air permeability of the pants-type absorbent article 1 is maintained well. It is preferable that the interior non-woven fabric sheets 302 and 312 and the elastic elastic member are adhered to each other via a hot melt adhesive interposed only in the elastic elastic member.

As the elastic member constituting the stretchable elastic member, for example, a thread-like, string-like, or flat-shaped elastic member such as natural rubber, synthetic rubber, or polyurethane can be appropriately used, and the thickness thereof is 620 dtex or less. Is preferable.

Hereinafter, the present invention will be described in detail with reference to examples.

An H-shaped pants type absorbent article was prepared by preparing a ventral band member having a width direction of 350 mm and a dorsal band member having a width direction of 350 mm for an absorbent body having a length of 350 mm and a width of 180 mm. .. In the absorbent body, the absorbent contained 8 g of fluff pulp and 9 g of a highly absorbent polymer. For the interior non-woven fabric sheet of the ventral band member, a non-woven fabric having a substantially circular unevenness and an embossed pattern in which a straight line connecting the centers thereof is inclined by 45 ° with respect to the longitudinal direction of the pants-type absorbent article was used. On the other hand, for the interior non-woven fabric sheet of the dorsal band member, a non-woven fabric having a substantially circular unevenness and an embossed pattern in which a straight line connecting the central portions thereof is formed parallel to the longitudinal direction of the pants-type absorbent article is used. board. Prototypes were provided to 20 women raising children, instructed by babies aged 0.5 months to under 1.0 years to use for a week, and to change diapers when the indicator discolored. Evaluated in. The results are shown in Table 1.

[Evaluation criteria]
〇: The skin feeling of the buttocks is smoother than the paper diapers currently used.
×: The skin feeling of the buttocks is the same as that of the disposable diapers currently used.

In Examples 1 and 2, non-woven fabric sheets having an uneven embossed pattern were arranged on the dorsal side and the ventral side, and the softness was improved and the ventilation performance was improved. In particular, there are many opinions that the dorsal side is dry, and it is considered that the embossed pattern on the dorsal side is parallel to the longitudinal direction of the pants-type absorbent article, so that the breathability is further improved. .. In Comparative Example 1, the non-woven fabric sheet having the uneven embossing pattern was not arranged on the dorsal side, and in Comparative Example 2, the non-woven fabric sheet having the uneven embossing pattern was not arranged on the ventral side and the dorsal side. As a result, there were many opinions that the smooth skin feeling after use was not felt.

1 Pants type absorbent article 11 Waist opening 12 Leg opening 13 Ventral part 14 Crotch part 15 Dorsal part 20 Absorptive body 24 Top sheet 25 Back sheet 29 Absorber 30 Ventral band member 301 Exterior non-woven fabric sheet (ventral band member) )
302 Interior non-woven fabric sheet (ventral band member)
31 Back side band member 311 Exterior non-woven fabric sheet (back side band member)
312 Interior non-woven fabric sheet (backside band member)

Claims (1)

Waist openings are formed on the upper part of the ventral and dorsal sides, and leg openings are formed on both sides of the crotch between the ventral side and the dorsal side.
Absorbent body and
A ventral band member overlapped from the non-skin contact surface side on the front end portion, which is one end portion in the longitudinal direction of the absorbent body,
A pants-type absorbent article having, as a separate member from the ventral band member, a dorsal band member overlapped from the non-skin contact surface side at the rear end portion which is the other end portion in the longitudinal direction of the absorbent body. There,
The absorbent body is composed of a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber arranged between the top sheet and the back sheet.
The ventral band member and the dorsal band member are arranged between the interior non-woven fabric sheet facing the skin contact surface side, the exterior non-woven fabric sheet facing the non-skin contact surface side, and the interior non-woven fabric sheet and the exterior non-woven fabric sheet. It is composed of a plurality of stretchable elastic members, which are provided.
The interior non-woven fabric sheet is a non-woven fabric having an uneven embossed pattern.
The interior nonwoven fabric sheet and the stretchable elastic member are joined to the bottom of the uneven embossed pattern of the interior nonwoven fabric sheet in a stretched state.
The uneven embossed pattern formed on the interior non-woven fabric sheet comprises a continuous pattern of circles, ellipses, or polygons.
In the interior non-woven fabric sheet of the ventral band member, while the straight line connecting the centers of the adjacent circles, ellipses, or polygons in the front-rear direction has a predetermined angle with respect to the longitudinal direction of the pants-type absorbent article.
In the interior non-woven fabric sheet of the dorsal band member, the straight line connecting the centers of the circles, ellipses, or polygons adjacent to the front and back is parallel to the longitudinal direction of the pants type absorbent article.
The height of the convex portion of the uneven embossed pattern of the interior non-woven fabric sheet is 1.0 mm or more in a state where the ventral band member and the dorsal band member are extended by 200% in the width direction of the pants type absorbent article. It is 0 mm or less, and is 2.0 mm or more and 6.0 mm or less in a state where the ventral band member and the dorsal band member are not extended.
The uneven embossing pattern of the interior non-woven sheet has a lengthwise dimension of the pants-type absorbent article of 3.0 mm in a state where the ventral band member and the dorsal band member are extended by 200% in the width direction of the absorbent article. Pants type absorption in a state where the width direction of the pants type absorbent article is 7.0 mm or more and 13.0 mm or less, and the ventral band member and the dorsal band member are not extended. The longitudinal dimension of the sex article is 3.0 mm or more and 7.0 mm or less, and the width direction dimension of the pants type absorbent article is 3.0 mm or more and 7.0 mm or less.
The interior non-woven fabric sheet and the stretchable elastic member are adhered to each other via a hot melt adhesive interposed only in the stretchable elastic member.
A pants-type absorbent article characterized in that the interior non-woven fabric sheet and the exterior non-woven fabric sheet are joined by heat or ultrasonic waves at a portion where the elastic elastic member does not exist.

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