JP2018068768A - Underpants type absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underpants type absorbent article which has excellent air permeability and touch feeling of a nonwoven fabric sheet.SOLUTION: The invention relates to an underpants type absorbent article having: an absorbent body; an abdominal side belt member; and a back side belt member. The absorbent body comprises a top sheet, a back sheet, and an absorber. The abdominal side belt member and the back side belt member are formed of: an interior nonwoven fabric sheet which is directed to a skin contact surface side; an exterior nonwoven fabric sheet which is directed to a non-skin contact surface side; and plural stretchable elastic members arranged between the interior nonwoven fabric sheet and the exterior nonwoven fabric sheet. The interior nonwoven fabric sheet is a nonwoven fabric having an irregularity embossment pattern. The interior nonwoven fabric sheet and the stretchable elastic members are configured so that the stretchable elastic members in a stretched state are jointed to a bottom part of the irregularity embossment pattern of the interior nonwoven fabric sheet. In the abdominal side belt member and the back side belt member, the irregularity embossment pattern of the interior nonwoven fabric sheet is different.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pants-type absorbent article having good air permeability and good non-woven sheet feel.

  Conventionally, pants-type disposable diapers (pants-type absorbent articles) have been used to absorb the excrement of infants, adults, and sick people. The pants-type absorbent article has a waist opening and a pair of leg openings, and has an absorbent main body that absorbs excrement and an exterior body that is a supporting member thereof, and the absorbent main body is worn from the front and back. Covering the crotch. And a wearer's both legs are put in a leg opening part, and a paper diaper main body is pulled up to a trunk periphery and it wears.

  In such a pant-type absorbent article, stretchable elastic members are disposed between the nonwoven fabric sheets constituting the exterior body around the front and rear waists, the front and rear waists, the left and right legs, the crotch, and the like. And the elastic elastic member arranged in each part constitutes a gather, and prevents the leakage of bodily fluids or gives a comfortable wearing feeling by fitting the absorbent article to the wearer's body. Yes. However, in some cases, these elastic elastic members may overtighten the body, thereby impairing the air permeability from the absorbent article to the outside, or rubbing the skin with gather pleats, resulting in poor touch. It may invite pleasure.

  As an invention that addresses such a problem, for example, Patent Document 1 discloses a composite stretchable member having a stretchable portion including two sheet members and a plurality of elastic members disposed between the two sheet members. The two sheet materials are intermittently joined to each other in the direction of expansion and contraction of the expansion / contraction part and the direction perpendicular thereto, and the elastic member is arranged in the expansion / contraction part so as not to pass through the connection part between the two sheets. And a composite elastic member that is fixed to both sheet materials at both ends thereof, and each of the both sheet materials forms a plurality of pleats extending continuously over a plurality of elastic members. It is disclosed.

  Patent Document 2 discloses a disposable diaper in which a cushion portion is formed on both or either of the front body and the back body, and the cushion portion includes an inner sheet and a non-facing surface of the inner sheet. An outer sheet positioned on the side, one or a plurality of waist elastic members fixed between the inner sheet and the outer sheet in a state of extending along the width direction of the disposable diaper, and both the inner sheet and the outer sheet Or a cushion-forming sheet that is superimposed on either one and intermittently joined so that the joined portions and the non-joined portions are alternately continued in the width direction, and the joined portions are respectively along the longitudinal direction. The extending linear joining lines are formed in two or more rows, the interval between the junctions is defined as the first interval, and the interval between the rows of the junction lines in the junction is the second interval. When defined as the interval of , The second spacing is narrower than the first interval, the disposable diaper is disclosed.

  Further, Patent Document 3 is a pants-type absorbent article composed of a top sheet, a back sheet, and an absorbent body, comprising an absorbent main body extending in the longitudinal direction, an interior sheet, and an exterior sheet. A pants-type absorbent article is disclosed in which the sheet is formed from an air-through nonwoven fabric made of low-fineness fibers.

Japanese Patent Laid-Open No. 2005-080859 JP, 2006-042917, A JP 2010-035581 A

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

  The inventors of the present invention have conducted extensive research in view of the above problems. As a result, in the pant-type absorbent article composed of the absorbent main body, the ventral band member, and the dorsal band member, the interior nonwoven fabric sheet of the ventral band member and the dorsal band member is a non-woven fabric having an uneven emboss pattern. The interior nonwoven fabric sheet and the stretchable elastic member are configured so that the stretchable elastic member is joined to the bottom of the embossed pattern of the unevenness of the interior nonwoven fabric sheet, and the interior nonwoven fabric of the ventral belt member. It has been found that the above problems can be solved by a pants-type absorbent article in which the embossed pattern of the unevenness is different between the sheet and the interior nonwoven fabric sheet of the back 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 at the upper part of the abdomen and the dorsal part, and leg openings are formed on both sides of the crotch between the abdomen and the dorsal part. Forming a part, an absorptive main body, an abdominal band member that is overlapped from the non-skin contact surface side on a front end that is one longitudinal end of the absorptive main body, and a member different from the abdominal side band member As a pants-type absorbent article having a back side belt member stacked from the non-skin contact surface side at the rear end which is the other end in the longitudinal direction of the absorbent main body, the absorbent main body is A liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber disposed between the top sheet and the back sheet, and the ventral belt member and the back belt member are skin contact surfaces An interior nonwoven fabric sheet directed to the side, an exterior nonwoven fabric sheet directed to the non-skin contact surface side, and A plurality of stretchable elastic members disposed between the non-woven fabric sheet and the exterior non-woven fabric sheet, wherein the interior nonwoven fabric sheet is a nonwoven fabric having an uneven emboss pattern, the interior nonwoven fabric sheet, and the stretchability The elastic member is bonded to the bottom of the embossed pattern of the unevenness of the interior nonwoven fabric sheet in a state where the stretchable elastic member is extended, and the unevenness of the interior nonwoven fabric sheet is formed by the ventral belt member and the back belt member. The pants type absorbent article is characterized in that the embossed patterns of the pants are different.

  (2) A second aspect of the present invention is the pant-type absorbent article according to (1), wherein the uneven embossed pattern formed on the interior nonwoven fabric sheet is a continuous circle, ellipse, or polygon. In the interior nonwoven fabric sheet of the ventral belt member, the straight line connecting the front and rear adjacent circles, ellipses, or polygonal centers has a predetermined angle with respect to the longitudinal direction of the pant-type absorbent article. On the other hand, in the interior nonwoven fabric sheet of the back band member, a straight line connecting the centers of circles, ellipses, or polygons adjacent to each other in parallel is parallel to the longitudinal direction of the pant-type absorbent article. It is.

  (3) A third aspect of the present invention is the pant-type absorbent article according to (1) or (2), wherein the interior nonwoven fabric sheet of the ventral belt member is in the longitudinal direction of the pant-type absorbent article. A dimension is 40 mm or more and 80 mm or less, and the dimension in the longitudinal direction of the underpants type absorbent article of the interior nonwoven fabric sheet of the back side band member is 50 mm or more and 100 mm or less.

  (4) A fourth aspect of the present invention is the pant-type absorbent article according to any one of (1) to (3), wherein the height of the convex portion of the uneven emboss pattern of the interior nonwoven fabric sheet. 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 pant-type absorbent article, and the ventral band member and the dorsal band member are extended. It is characterized by being 2.0 mm or more and 6.0 mm or less.

  (5) A fifth aspect of the present invention is the pant-type absorbent article according to any one of (1) to (4), wherein the uneven embossed pattern of the interior nonwoven fabric sheet is the ventral belt member. And in the state which extended the said back side belt member 200% in the width direction of the absorbent article, the dimension of the longitudinal direction of a pants type absorbent article is 3.0 mm or more and 7.0 mm or less, and the width direction of a 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 a state where the dimension of the pant-type absorbent article is 7.0 mm or more and 13.0 mm or less and the ventral band member and the back band member are not extended. The dimension in 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 pant-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 spunbond nonwoven fabric. It is characterized by.

  (7) A seventh aspect of the present invention is the pant-type absorbent article according to any one of (1) to (6), wherein the interior nonwoven fabric sheet and the stretchable elastic member are the stretchable It adheres through the hot-melt-adhesive agent which intervenes only in an elastic elastic member.

  (8) An eighth aspect of the present invention is the pant-type absorbent article according to any one of (1) to (7), wherein the interior nonwoven fabric sheet and the exterior nonwoven fabric sheet are the stretchable properties. It is characterized by being joined by heat or ultrasonic waves at a site where no elastic member exists.

  In the pants-type absorbent article of the present invention, a nonwoven fabric having an uneven embossed pattern is used as the interior nonwoven fabric sheet that directly touches the wearer's skin. Since the nonwoven fabric having an uneven embossed pattern has a soft touch, the use of such a nonwoven fabric as an interior nonwoven fabric sheet improves the touch of the pant-type absorbent article. Further, in the pant-type absorbent article of the present invention, a plurality of stretchable elastic members are arranged between the exterior nonwoven fabric sheet and the interior nonwoven fabric sheet, and the unevenness of the interior nonwoven fabric sheet is in a stretched state. The interior nonwoven fabric sheet and the stretchable elastic member are joined in a state where it is joined to the bottom of the embossed pattern. Thereby, a gap is formed between the interior nonwoven fabric sheet and the wearer's skin when the pant type absorbent article is worn, and the air permeability of the pant type absorbent article is maintained well. Furthermore, since the embossing pattern of the interior nonwoven fabric sheet is different between the ventral band member and the dorsal band member, even if it is worn and laid on its back, the breathable area, including the dorsal region, is also included. In addition, the non-woven sheet feels good.

It is a perspective view of the underpants type absorbent article of this invention. It is an expanded view of the underpants type absorbent article of this invention. (A) A plan view of the interior nonwoven fabric sheet when the ventral belt member is stretched by 200% and when it is not stretched; and a sectional view showing the state of the interior nonwoven fabric sheet, the stretchable elastic member, and the exterior nonwoven fabric sheet; and (b ) A plan view of the interior nonwoven fabric sheet when the back side belt member is stretched by 200% and when it is not stretched; and a sectional view showing the state of the interior nonwoven fabric sheet, the stretchable elastic member, and the exterior nonwoven fabric sheet.

  Hereinafter, the underpants type absorbent article 1 which concerns on embodiment of this invention is demonstrated. In addition, the position which becomes a wearer's belly side when wearing the pants-type absorbent article 1 is referred to as “front” or “front side”, and the position which is the wearer's back side is referred to as “rear” or “rear side”. Called. Moreover, the surface which becomes a wearer's skin side when the underpants type absorbent article 1 is worn is referred to as “inside”.

<Pants type absorbent article>
The pants-type absorbent article 1 has a non-skin contact with an absorbent main body 20 having a shape elongated in the front-rear direction that covers the wearer's crotch part from the front and rear, and a front end that is one longitudinal end of the absorbent main body 20. As a separate member from the abdominal side band member 30 and the abdominal side band member 30 overlapped from the contact surface side, the abdomen side band member 30 was overlapped from the non-skin contact surface side to the rear end which is the other end in the longitudinal direction of the absorbent main body 20. And a back band member 31. As shown in FIG. 1, the pant-type absorbent article 1 has a waist opening 11 at the top of the abdomen 13 and the back 15, and a crotch 14 between the abdomen 13 and the back 15. Leg openings 12 are formed on both the left and right sides of the body, and are roughly divided into an abdominal side 13 that contacts the abdomen of the wearer, a back side 15 that contacts the back of the wearer, and an absorbent main body 20. The crotch part 14 is divided.

[Absorbent body]
As shown in FIG. 2, the absorbent main body 20 includes a liquid-permeable top sheet 24, a liquid-impermeable back sheet 25, and an absorbent body 29 disposed between the top sheet 24 and the back sheet 25. Including.

(Top sheet)
The top sheet 24 may be formed from a base material having liquid permeability that allows body fluid to move to the absorbent body 29. For example, a nonwoven fabric such as a thermal bond nonwoven fabric or a spunbond nonwoven fabric, or a thermal bond / spunbond is laminated. It is composed of a material that is soft to touch and does not irritate the skin, such as a hydrophilic nonwoven material such as a composite nonwoven fabric. The top sheet 24 may be embossed or perforated on the surface in order to improve liquid permeability. As a method for performing these embossing and perforating processes, a known method can be carried out without limitation. 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 moisturizing agent and the like. Furthermore, 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. Although there is no restriction | limiting in particular as a shape of the top sheet 24, What is necessary is just the shape which covers the absorber 29 required in order to guide a bodily fluid to the absorber 29 so that there may be no leak.

(Back sheet)
The back sheet 25 may be formed using a base material having liquid impermeability so that the body fluid held by the absorbent body 29 does not wet the clothing, and is formed from a breathable or non-breathable resin film. The 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, it is preferable to use a resin film having air permeability as the back sheet 25 in order to prevent stuffiness at the time of wearing. In order to provide the back sheet 25 with air permeability, for example, a filler may be blended in the resin film of the base material, or the back sheet 25 may be embossed. In addition, calcium carbonate can be mentioned as a filler, The compounding method can perform a well-known method without a restriction | limiting.

(Absorber)
The absorbent main body 20 includes an absorbent body 29 that is disposed between the top sheet 24 and the back sheet 25. The absorber 29 contains an absorbent fiber as a base material and a superabsorbent 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, hydrophilic paper Can be mentioned. Among these, it is preferable to use fluff pulp from the viewpoint of absorbability. Examples of such fluff pulp include wood pulp, synthetic fiber, polymer fiber, non-wood pulp and the like that have been fibrillated into cotton. The absorbent fibers of the absorbent body 29 preferably have 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 superabsorbent polymer used in the absorbent body 29 is not particularly limited as long as it absorbs body fluids and can prevent backflow. Sodium polyacrylate, polyaspartate, (starch-acrylic) An acid) graft copolymer, an (acrylic acid-vinyl alcohol) copolymer, an (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 preferably 15% by mass or more and 50% by mass or less so as not to impair the absorption performance and the touch. Is preferred.

  The form of the absorbent fiber and SAP in the absorbent body 29 is preferably a laminated mat formed by mixing SAP particles in the absorbent fiber. 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 is not particularly limited as long as it has hydrophilicity, and examples thereof include hydrophilic nonwoven fabrics such as tissue, absorbent paper, and airlaid nonwoven fabric. In the case where a plurality of carrier sheets are provided, the base material of the carrier sheet may be the same or different.

  The absorber 29 may be composed of two or more layers of absorbers, for example, a laminate of an upper layer absorber and a lower layer absorber. 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 such that the size of the upper layer absorber is larger than the size of the lower layer absorber, and the size of the upper layer absorber is the same as the size of the lower layer absorber. The dimension of an upper layer absorber may be smaller than the dimension of a lower layer absorber.

[Ventral band member, dorsal band member]
The abdominal band member 30 and the back band member 31 are formed to overlap the front end portion and the rear end portion, which are the end portions of the absorbent main body 20, from the non-skin contact surface side. 30 and the width direction both ends of the back | dorsal belt | band | zone member 31 are joined, the waist opening part 11 and the leg opening part 12 are formed, respectively, the outer surface of the underpants type absorbent article 1 is comprised, and non-skin contact The exterior nonwoven fabric sheets 301 and 311 directed to the surface side, and the interior nonwoven fabric sheets 302 and 312 oriented to the skin contact surface side on the body side of the exterior nonwoven fabric sheets 301 and 311.

(Exterior nonwoven sheet and interior nonwoven sheet)
As described above, the exterior nonwoven fabric sheets 301 and 311 and the interior nonwoven fabric sheets 302 and 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 inner side, and the abdominal side portion 13 and the back side portion. The both side edges of 15 are connected with overlapping portions. Thereby, exterior nonwoven fabric sheet 301,311 forms the elastic waist opening part 11 and a pair of leg opening part 12, and comprises the underpants type absorbent article 1 in the pants shape which can be attached or detached as a whole. When the pant-type absorbent article 1 is worn, the abdomen 13 covers the waist on the wearer's stomach, and the back 15 covers the waist on the wearer's back.

The interior nonwoven fabric sheets 302 and 312 are laminated inside the exterior nonwoven fabric sheets 301 and 311 so that the strength of the ventral belt member 30 and the back belt member 31 is increased. The exterior nonwoven fabric sheets 301 and 311 and the interior nonwoven fabric sheets 302 and 312 are a nonwoven fabric such as a thermal bond nonwoven fabric, an air-through nonwoven fabric, and a spunbond nonwoven fabric, preferably an air-through nonwoven fabric or a spunbond nonwoven fabric, such as polypropylene, polyester, and polyethylene. A nonwoven fabric made of a thermoplastic resin can be used. When using these nonwoven fabrics, the basis weight 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 nonwoven fabric sheets 302 and 312 are nonwoven fabrics having an uneven emboss pattern. When the interior nonwoven fabric sheets 302 and 312 have uneven embossed patterns, the touch when the pant-type absorbent article 1 is worn is good. Embossing patterns formed on the interior nonwoven fabric sheets 302 and 312 include round shapes such as circles and ellipses, and polygonal shapes such as triangles, squares, pentagons, hexagons, heptagons, octagons, octagons, and decagons. A pattern can be mentioned, and although the dimension in the longitudinal direction and the dimension in the width direction may be the same or different, the ventral belt member 30 and the back belt member 31 are elongated by 200% in the width direction of the absorbent article. In this state, it is preferable that the dimension in the width direction of the pants type absorbent article 1 is larger than the dimension in the longitudinal direction of the pants type absorbent article 1. Here, the “200% stretched state” refers to a state in which the dimension in a non-stretched state is 100% and the dimension in a non-stretched state is doubled. More specifically, as shown in FIG. 3, the embossing pattern in the longitudinal direction of the pant-type absorbent article 1 in the state where the ventral belt member 30 and the back belt member 31 are extended by 200% in the width direction of the absorbent article. The dimension is preferably 3.0 mm or greater and 7.0 mm or less, and the dimension in the width direction of the pant-type absorbent article 1 is preferably 7.0 mm or greater and 13.0 mm or less. In the state where the side band member 31 is not extended in the width direction of the absorbent article, the size in the longitudinal direction and the width direction of the pant-type absorbent article 1 is preferably 3.0 mm or greater and 7.0 mm or less. Moreover, the height of the convex part of an uneven | corrugated embossing pattern may be 1.0 mm or more and 3.0 mm or less in the state which extended the ventral | abdominal band member 30 and the back | dorsal band member 31 200% in the width direction of the absorbent article. Preferably, it is 2.0 mm or more and 6.0 mm or less in a state where the ventral band member 30 and the back band member 31 are not extended in the width direction of the absorbent article. In addition, it is preferable that the interior nonwoven fabric sheets 302 and 312 and the exterior nonwoven fabric sheets 301 and 311 are joined by heat or ultrasonic waves at a site where a stretchable elastic member described later does not exist.

  In the present invention, the uneven emboss patterns of the interior nonwoven fabric sheets 302 and 312 are different between the ventral belt member 30 and the back belt member 31. Specifically, in the interior nonwoven fabric sheet 302 of the ventral band member 30, the uneven emboss pattern is a continuous pattern of a circle, an ellipse, or a polygon, and connects the centers of circles, ellipses, or polygons adjacent to each other in the front and rear directions. While the straight line has a predetermined angle with respect to the longitudinal direction of the pant-type absorbent article 1, the embossed pattern of unevenness is a circle, an ellipse, or a polygon in the interior nonwoven fabric sheet 312 of the back side band member 31. It is preferable that the straight line which connects the center of the circle | round | yen, ellipse, or polygonal shape which adjoins front and back is parallel to the longitudinal direction of the pants type absorbent article 1. By adopting such a configuration, even if the pants-type absorbent article 1 is worn and lying on its back, the breathability of the pants-type absorbent article 1 including the back region and the nonwoven fabric sheet The skin feel is good.

  The length in the longitudinal direction of the pants-type absorbent article 1 of the interior nonwoven fabric sheet 302 of the ventral band member 30 is preferably 40 mm or more and 80 mm or less, and the pants-type absorbent article of the interior nonwoven fabric sheet 312 of the back-side band member 31. 1 is preferably 50 mm or more and 100 mm or less. Moreover, it is preferable that the interior nonwoven fabric sheet 302 of the abdominal band member 30 overlaps the absorbent main body 20 and the longitudinal dimension of the pants-type absorbent article 1 by 20 mm or more and 30 mm or less. The sheet 312 preferably overlaps with the absorbent main body 20 and the dimension in the longitudinal direction of the pant-type absorbent article 1 by 20 mm or more and 40 mm or less. By making the dimensions of the interior nonwoven fabric sheets 302 and 312 within the above range, the breathability of the pant-type absorbent article 1 and the touch of the nonwoven fabric sheet, including the back region, may be improved. it can.

[Elastic elastic member]
In the pants-type absorbent article 1 of the present invention, the outer nonwoven fabric sheets 301 and 311 and the interior are provided at the periphery of the waist opening 11, the periphery of the leg opening 12, the abdomen 13, the back 15, and the crotch 14. A plurality of elastic elastic members are disposed between the nonwoven fabric sheets 302 and 312, and are joined to the exterior nonwoven fabric sheets 301 and 311 and the interior nonwoven fabric sheets 302 and 312. And in the state which this elastic elastic member extended | stretched, it is joined to the bottom part of the embossed pattern of the unevenness | corrugation of the interior nonwoven fabric sheet 302,312. By adopting such a configuration, in the state in which the pant-type absorbent article 1 is worn, wrinkles along the uneven embossed pattern are formed on the interior nonwoven fabric sheets 302, 312 and the wearer and the pant-type absorbent Since the gap is maintained between the interior nonwoven fabric sheets 302 and 312 of the article 1, the air permeability of the pant-type absorbent article 1 is maintained well. In addition, it is preferable that the interior nonwoven fabric sheets 302 and 312 and the stretchable elastic member are bonded to each other via a hot melt adhesive interposed only in the stretchable elastic member.

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

  Hereinafter, an example is given and the present invention is explained in detail.

  For an absorbent main body having a length of 350 mm and a width of 180 mm, an abdominal band member having a width dimension of 350 mm and a dorsal band member having a width dimension of 350 mm were prepared to produce an H-type pant-type absorbent article. . In the absorbent main body, the absorbent body contained 8 g of fluff pulp and 9 g of superabsorbent polymer. As the interior nonwoven fabric sheet of the ventral side band member, a nonwoven fabric having an embossed pattern in which a straight line connecting the centers of substantially circular irregularities is inclined by 45 ° with respect to the longitudinal direction of the pant-type absorbent article. On the other hand, for the interior nonwoven fabric sheet of the back side band member, a nonwoven fabric having an embossed pattern in which a substantially circular unevenness and a straight line connecting the central portions thereof are formed in parallel to the longitudinal direction of the pant-type absorbent article is used. It was. Providing prototypes to 20 child-rearing women for 0.5-month to <1.0-year-olds to use for a week and instructing the diaper to be changed when the indicator changes color It was evaluated with. The results are shown in Table 1.

[Evaluation criteria]
◯: The butt skin feels lighter than the currently used paper diapers.
X: The skin feeling of the paper diaper currently used and the buttocks does not change.

  In Example 1 and Example 2, the nonwoven fabric sheet which has an uneven | corrugated embossing pattern was arrange | positioned on the back side and the stomach side, the softness improved and ventilation performance improved. In particular, there are many opinions that the back side is smooth, and it is considered that the breathability is improved by the embossed pattern on the back side being parallel to the longitudinal direction of the pants-type absorbent article. . In the comparative example 1, the nonwoven fabric sheet which has an uneven | corrugated embossed pattern on the back side is not arrange | positioned, and in the comparative example 2, the nonwoven fabric sheet which has an uneven | corrugated embossed pattern on the stomach side and the back side was not arrange | positioned. As a result, there were many opinions that a smooth skin feeling after use was not felt.

DESCRIPTION OF SYMBOLS 1 Pants type absorbent article 11 Waist opening part 12 Leg opening part 13 Abdominal side part 14 Crotch part 15 Back side part 20 Absorbent main body 24 Top sheet 25 Back sheet 29 Absorber 30 Abdominal side belt member 301 Exterior nonwoven fabric sheet (abdominal side belt member) )
302 Interior nonwoven fabric sheet (ventral side band member)
31 back side belt member 311 exterior nonwoven fabric sheet (back side belt member)
312 Interior non-woven fabric sheet (back side belt member)

Claims (8)

Forming a waist opening at the top of the ventral side and the dorsal side, forming leg openings on both sides of the crotch between the ventral side and the dorsal side;
An absorbent body,
An abdominal band member superimposed from the non-skin contact surface side on the front end which is one end in the longitudinal direction of the absorbent main body,
As a separate member from the ventral band member, a pant-type absorbent article having a back band member that is overlapped from the non-skin contact surface side at the rear end that is the other end in the longitudinal direction of the absorbent main body. There,
The absorbent main body is composed of a liquid permeable top sheet, a liquid impermeable back sheet, and an absorber disposed between the top sheet and the back sheet,
The ventral belt member and the back belt member are disposed between the interior nonwoven fabric sheet facing the skin contact surface side, the exterior nonwoven fabric sheet facing the non-skin contact surface side, and the interior nonwoven fabric sheet and the exterior nonwoven fabric sheet. Composed of a plurality of stretchable elastic members,
The interior nonwoven fabric sheet is a nonwoven fabric having an uneven embossed pattern,
The interior nonwoven fabric sheet and the stretchable elastic member are joined to the bottom of the embossed pattern of the unevenness of the interior nonwoven fabric sheet in a state where the stretchable elastic member is extended,
An underpants type absorbent article, wherein the ventral belt member and the back belt member have different embossed patterns on the interior nonwoven fabric sheet. The embossed pattern of irregularities formed on the interior nonwoven fabric sheet consists of a continuous pattern of circles, ellipses, or polygons,
In the interior nonwoven fabric sheet of the ventral side belt member, while the straight line connecting the centers of the circle, ellipse, or polygon adjacent to each other has a predetermined angle with respect to the longitudinal direction of the pants-type absorbent article,
The underpants type according to claim 1, wherein in the interior nonwoven fabric sheet of the backside band member, a straight line connecting the centers of circles, ellipses, or polygons adjacent to each other in parallel is parallel to the longitudinal direction of the pant type absorbent article. Absorbent article. The dimension in the longitudinal direction of the pants-type absorbent article of the interior nonwoven fabric sheet of the ventral band member is 40 mm or more and 80 mm or less,
The underpants type absorbent article of Claim 1 or 2 whose dimension in the longitudinal direction of the underpants type absorbent article of the interior nonwoven fabric sheet of the said back side belt member is 50 mm or more and 100 mm or less.   The height of the convex part of the uneven embossing pattern of the interior nonwoven fabric sheet is 1.0 mm or more in a state where the ventral belt member and the back belt member are stretched by 200% in the width direction of the pant-type absorbent article. The underpants type absorbent article according to any one of claims 1 to 3, wherein the pants-type absorbent article is 0 mm or less and 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 stretched.   The uneven embossed pattern of the interior nonwoven fabric sheet has a lengthwise dimension of the pant-type absorbent article of 3.0 mm in a state where the ventral band member and the back band member are stretched 200% in the width direction of the absorbent article. The width of the pant-type absorbent article is 7.0 mm or greater and 13.0 mm or less, and the pant-type absorbent is in a state where the ventral band member and the back-side band member are not extended. The dimension in the longitudinal direction of the absorbent article is 3.0 mm or more and 7.0 mm or less, and the dimension in the width direction of the pant-type absorbent article is 3.0 mm or more and 7.0 mm or less. The described pants-type absorbent article.   The pants-type absorbent article according to any one of claims 1 to 5, wherein the interior nonwoven fabric sheet is an air-through nonwoven fabric or a spunbond nonwoven fabric.   The underpants type absorptivity according to any one of claims 1 to 6, wherein the interior nonwoven fabric sheet and the stretchable elastic member are bonded via a hot melt adhesive interposed only in the stretchable elastic member. Goods.   The pants-type absorbent article according to any one of claims 1 to 7, wherein the interior nonwoven fabric sheet and the exterior nonwoven fabric sheet are joined by heat or ultrasonic waves at a site where the stretchable elastic member does not exist. .

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