WO2017110696A1 - Absorbent article - Google Patents

Absorbent article Download PDF

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Publication number
WO2017110696A1
WO2017110696A1 PCT/JP2016/087652 JP2016087652W WO2017110696A1 WO 2017110696 A1 WO2017110696 A1 WO 2017110696A1 JP 2016087652 W JP2016087652 W JP 2016087652W WO 2017110696 A1 WO2017110696 A1 WO 2017110696A1
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WO
WIPO (PCT)
Prior art keywords
sheet
skin
dots
absorbent article
colored portion
Prior art date
Application number
PCT/JP2016/087652
Other languages
French (fr)
Japanese (ja)
Inventor
麗子 ▲高▼島
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2016159324A external-priority patent/JP6710126B2/en
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to CN201680075020.2A priority Critical patent/CN108472177B/en
Priority to BR112018012983A priority patent/BR112018012983A2/en
Publication of WO2017110696A1 publication Critical patent/WO2017110696A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the outer layers
    • A61F13/511Topsheet, i.e. the permeable cover or layer facing the skin

Definitions

  • the present invention relates to absorbent articles such as disposable diapers, breast milk pads and sanitary napkins.
  • An absorbent article having a colored portion that is visible through a liquid-permeable sheet called a top sheet from the skin facing surface side of the absorbent article is known.
  • a colored portion having at least two regions of different colors is provided, and these regions create a perception of depth on or through the top sheet.
  • Absorbent articles placed in the are described. By creating a perception of depth, it is possible to visually represent the function or action of the secretions being drawn into the absorbent article, giving the user a sense of security before and after use. It is said that.
  • Patent Document 1 is designed to visually express the function of an absorbent material that cannot be recognized from the outside by creating a perception of depth, It is not intended to give the impression that the absorbent article has a high absorbent performance.
  • An object of the present invention is to give an impression that the absorbent article has high absorption performance to the user by giving the user an impression that holes that are not actually present in the absorbent article. .
  • the present invention is embodied in one form by an absorbent article.
  • the absorbent article which concerns on one form of this invention is between the absorber, the 1st skin surface sheet which consists of a nonwoven fabric arrange
  • the first skin sheet has a region where the formation index is in the range of 180 to 557
  • the second skin sheet has a colored portion composed of a plurality of dots long in the first direction, It is visible from the skin facing surface side of the absorbent article through the region of the first skin sheet, and the length of the colored portion in the first direction is 0.5 mm or more and 1.85 mm or less, and the colored portion.
  • the length in the second direction is not less than 0.1 mm and not more than 0.7 mm, and the interval between the colored portions adjacent to each other in the first direction is not less than 0.5 mm and not more than 10 mm, and in the second direction
  • the interval between the colored portions adjacent to each other is 0.75 mm or more and 3.5 mm or less.
  • the present invention it is possible to give the user an impression that a hole that does not actually exist in the absorbent article, and to give the user an impression that the absorbent article has high absorption performance.
  • the top view of the disposable diaper which is an absorptive article concerning one embodiment of the present invention AA line sectional view of a disposable diaper concerning an embodiment same as the above
  • the enlarged plan view which shows typically the state seen from the skin opposing surface side of the disposable diaper which concerns on embodiment same as the above.
  • the enlarged plan view of the 2nd skin sheet provided in the disposable diaper concerning an embodiment same as the above Explanatory drawing of the effect acquired by embodiment same as the above
  • Schematic which shows the example of a change regarding arrangement
  • the absorbent article which concerns on one Embodiment of this invention is between the absorber, the 1st skin surface sheet which consists of a nonwoven fabric arrange
  • the first skin sheet has a region where the formation index is in the range of 180 to 557
  • the second skin sheet has a colored portion composed of a plurality of dots long in the first direction, It is visible from the skin facing surface side of the absorbent article through the region of the first skin sheet, and the length of the colored portion in the first direction is 0.5 mm or more and 1.85 mm or less, and the colored portion.
  • the length in the second direction is not less than 0.1 mm and not more than 0.7 mm, and the interval between the colored portions adjacent to each other in the first direction is not less than 0.5 mm and not more than 10 mm, and in the second direction
  • the interval between the colored portions adjacent to each other is 0.75 mm or more and 3.5 mm or less.
  • the first skin sheet is made of non-woven fabric, and the formation index of the first skin sheet is in the range of 180 to 557, so that the texture of the first skin sheet is moderately uneven. Light and dark will occur in the dots that can be seen through the first skin sheet from the skin facing surface side of the absorbent article.
  • the length of the colored portion in the first direction is 0.5 mm or more and 1.85 mm or less
  • the length of the colored portion in the second direction is 0.1 mm or more and 0.7 mm or less, and is adjacent to the first direction.
  • the interval between the colored portions is 0.5 mm or more and 10 mm or less
  • the interval between the colored portions adjacent in the second direction is 0.75 mm or more and 3.5 mm or less. Such an impression can be given.
  • the illusion effect that the shade of the dot is a shadow of the hole is produced, and the impression that the dot is not a simple pattern or pattern but a hole is produced.
  • the dots By making the dots long in the direction (first direction) along the orientation of the fibers in the first skin sheet, the dots look like the shadow of the fibers, and the shadow is expressed on the second skin sheet Therefore, it is possible to enhance the effect that the dots appear to be holes. Thereby, it is possible to give the user an impression that a hole that does not actually exist in the absorbent article, and to give the user an impression that the absorbent article has high absorption performance.
  • the above area of the first skin sheet preferably has an average absorbance in the range of 275 to 1694.
  • the colored portion includes a plurality of dot rows in which dots are arranged in the first direction, and the dot rows are preferably arranged apart from each other in the second direction.
  • the first skin sheet extends over a plurality of dots constituting the row.
  • the part which becomes a shadow of a fiber is formed favorably, the effect which makes a dot look as if it is a hole can be improved, and the impression that a hole exists in an absorptive article can further be improved.
  • the dots adjacent in the second direction are shifted from each other in the first direction between the plurality of dot rows.
  • the interval between adjacent dots in the second direction is constant and is in the range of 0.75 to 3.5 mm.
  • the colored portion has a size along the second direction of the dots smaller than the interval between adjacent dot rows.
  • the colored portion preferably has a ratio A / B in the range of 1 to 18.5, where A is the dot size in the first direction and B is the dot size in the second direction.
  • the dots are in the direction along the fiber orientation in the first skin sheet (first direction). Therefore, the shape can be suitably long so that it looks like a hole.
  • FIG. 1 is a plan view schematically showing an overall configuration of a disposable diaper 10 which is an absorbent article according to the present embodiment.
  • FIG. 1 shows a disposable diaper 10 in an unfolded state before being worn on the body.
  • the disposable diaper 10 is not limited to a tape type but may be a pants type.
  • the disposable diaper 10 is located between the front waistline region Sf applied to the front surface of the waistline of the wearer, the rear waistline region Sb addressed to the back surface of the waistline, the front waistline region Sf, and the rear waistline region Sb.
  • the crotch region Sc applied to the wearer's crotch region is roughly divided into a chassis 20, an absorbent body 30, a first skin sheet 40, and a second skin sheet 50.
  • a direction in which the crotch region Sc extends between the front waistline region Sf and the rear waistline region Sb is defined as a first direction L, which is parallel to the surface of the first skin sheet 40 and orthogonal to the first direction L.
  • the direction to be taken is the second direction W.
  • the chassis 20 forms the overall outer shape of the disposable diaper 10, constitutes a diaper main body, and fixes the absorber 30 relative to the wearer's body.
  • the chassis 20 (specifically, the back nonwoven fabric 21 to be described later) forms a pair of side flaps 60 extending outward in the second direction W in the rear waistline region Sb.
  • a fastening tape 105 is attached to the side flap 60.
  • a hook sheet 110 is affixed to the fastening tape 105. By engaging the hook sheet 110 with a target tape 120 provided in the front waistline region Sf, the disposable diaper 10 can be maintained in the mounted state. Is possible.
  • the absorber 30 (only its outline is shown by a thick dotted line in FIG. 1) has a vertically long rectangular shape as a whole, and the skin facing surface of the chassis 20 in a state where the longitudinal direction coincides with the first direction L. Is placed on top.
  • a first skin sheet (hereinafter referred to as “top sheet”) 40 is disposed on the skin facing surface side of the absorbent body 30 and forms the inner surface of the disposable diaper 10 that directly contacts the wearer's skin.
  • the top sheet 40 is comprised with the white nonwoven fabric which has liquid permeability, and is specifically comprised with the air through nonwoven fabric which has the average light absorbency and formation index of a predetermined range.
  • the 2nd skin sheet 50 embodies the coloring part 55 concerning this embodiment.
  • the second skin sheet 50 is realized as an upper covering sheet having liquid absorbency, and in other words, between the absorbent body 30 and the top sheet 40, in other words, on the skin facing surface side of the absorbent body 30,
  • the top sheet 40 is disposed on the non-skin facing surface side.
  • the upper covering sheet 50 is made of a tissue material provided with a colored portion 55 by printing, and has an outer shape that substantially matches the absorber 30 in the plan view of FIG.
  • the upper covering sheet 50 constitutes a member generally called a core wrap together with the lower covering sheet 35 described later.
  • the disposable diaper 10 includes a first elastic body 70 that forms an upright three-dimensional cuff on the outer side in the second direction W with respect to the absorbent body 30, and a chassis corresponding to the circumference of the wearer's leg.
  • 20 is provided with a second elastic body 80 that imparts stretchability in the first direction L.
  • the first elastic body 70 extends from the front waistline region Sf to the rear waistline region Sb on the outside of the absorber 30 and expands and contracts in the first direction L.
  • the second elastic body 80 extends over the entire crotch region Sc at the side edge of the chassis 20 corresponding to the circumference of the wearer's leg, and expands and contracts in the first direction L.
  • the three-dimensional cuff formed by the first elastic body 70 surrounds the urination position in the second direction W, and can prevent leakage of excrement from the urination position toward the outside in the second direction W. Furthermore, the stretchability is imparted to the side edge of the chassis 20 by the second elastic body 80, so that the fit of the disposable diaper 10 around the legs can be enhanced.
  • FIG. 2 is a cross-sectional view of the disposable diaper 10 shown in FIG.
  • the chassis 20 is configured by laminating a plurality of sheet members. Specifically, the chassis 20 forms the outermost surface of the disposable diaper 10, and a back nonwoven fabric 21 that contacts the wearer's clothes, and a back film 22 disposed between the absorbent body 30 and the back nonwoven fabric 21.
  • the back nonwoven fabric 21 and the back film 22 are joined by an adhesive (for example, a hot melt adhesive).
  • the back nonwoven fabric 21 is hydrophobic, and the back film 22 is liquid impermeable.
  • the absorber 30 is in a state of being covered with an upper covering sheet 50 and a liquid-absorbing lower covering sheet 35 configured as a separate sheet member from the upper covering sheet 50.
  • a tissue material is used for the lower covering sheet 35, and the absorber 30 is covered with the lower covering sheet 35 on the bottom surface that is the non-skin facing surface and the two side edges that extend in the first direction L. ing.
  • covered with the lower coating sheet 35 is formed in the skin opposing surface side of the absorber 30, and the both sides of the 1st direction L, and the upper coating sheet 50 is arrange
  • the entire absorber 30 is covered with the upper cover sheet 50 and the lower cover sheet 35.
  • the top sheet 40 covers the entire upper covering sheet 50 on the skin facing surface side of the absorbent body 30 and extends beyond the side edge of the upper covering sheet 50 to the outside in the second direction W.
  • the side sheet 25 is provided on the outer side in the second direction W with respect to the top sheet 40, and the side sheet 25 has its inner edge folded back to the outside and overlapped with the side edge of the top sheet 40.
  • the first elastic body 70 that forms a three-dimensional cuff is sandwiched between the folded portions of the side seat 25.
  • the side sheet 25 extends outward in the second direction W following the back nonwoven fabric 21 of the chassis 20 and is joined to the back nonwoven fabric 21 to form a side flap 60.
  • FIG. 3 is an enlarged plan view schematically showing a state of the disposable diaper 10 as viewed from the skin facing surface side.
  • FIG. 4 is an enlarged plan view of the upper covering sheet 50, and shows an enlarged color portion 55 provided on the upper covering sheet 50.
  • the upper covering sheet 50 is provided with a colored portion 55 by printing on the skin facing surface.
  • the printing method of the coloring part 55 may be a method using ink such as flexographic printing, gravure printing, flat printing or on-demand printing, or may be a method using pressure sensitive ink or colored hot melt adhesive. Good.
  • the tissue material employed in the upper covering sheet 50 has a narrow gap between the fibers compared to the non-woven fabric, the ink tends to remain on the surface of the material during printing. It is possible to form a uniform printed portion without unevenness.
  • employing a non-woven fabric as the material of the upper covering sheet 50 is not excluded.
  • the colored portion 55 of the upper covering sheet 50 includes a plurality of dots that are long in the first direction L.
  • the “dot” is not limited to a circle or an ellipse, but is interpreted as a concept including a “segment” of a line that forms one straight line as a whole, such as a broken line (dotted line), a one-dot chain line, or a two-dot chain line.
  • the dots 55 shown in FIG. 4 are broken line segments.
  • the dots 55 constitute a dot row 55A composed of a plurality of dots arranged in the first direction L at a predetermined interval, and the dot rows 55A are arranged apart from each other in the second direction W.
  • the dimensions of the dots 55 are preferably such that the length A in the first direction L is in the range of 0.5 mm to 1.85 mm, and the width B in the second direction W is in the range of 0.1 mm to 0.7 mm. Is preferred.
  • the length A of the dots 55 is more preferably in the range of 0.5 mm to 1.5 mm.
  • the interval G1 between the dots 55 adjacent in the first direction L is preferably in the range of 0.5 mm to 10 mm
  • the interval G2 between the dots 55 adjacent in the second direction W is 0.75 mm to 3 mm.
  • the distances G1 and G2 between the dots 55 are more preferably in the range of 0.5 mm to 4 mm and 0.75 mm to 2.5 mm, respectively.
  • the dot 55 has a length A that is greater than or equal to the width B (B ⁇ A), and the ratio A / B of the length A to the width B is in the range of 1 to 18.5, more preferably. Is in the range of 1-10.
  • the width B of the dots 55 is smaller than the interval G2 between the dot rows 55A adjacent in the second direction W.
  • the dots 55 adjacent in the second direction W are shifted from each other in the first direction L and arranged in a staggered manner among the plurality of dot rows 55A.
  • the dots 55 may be arranged on a straight line parallel to the second direction W between the adjacent dot rows 55A.
  • the dots 55 are provided not only on the entire skin facing surface of the upper covering sheet 50 but also on a part of the skin facing surface of the upper covering sheet 50 with respect to at least one of the first direction L and the second direction W. May be provided only.
  • the color of the dots 55 can be appropriately selected in consideration of the visibility. Specifically, all primary colors such as white, black, red, blue, purple, orange, yellow, green and indigo, and their lighter colors or mixed colors thereof can be selected.
  • the color of the dots 55 constituting the colored portion is similar to the ground color of the upper covering sheet 50, and is more than the ground color. Is preferably a dark color.
  • the advancing color (bright) is expressed in the non-colored portion where the dots 55 are not printed, while the backward color (dark) is expressed by the dots 55 in the colored portion.
  • the upper cover sheet 50 is covered with the top sheet 40 on the skin contact surface side.
  • the top sheet 40 is an air-through type white nonwoven fabric.
  • the top sheet 40 has a fiber orientation parallel to the first direction L, and has a predetermined range of average absorbance and formation index.
  • the top sheet 40 has an average absorbance in the range of 275 to 1694 and a formation index in the range of 180 to 557.
  • the top sheet 40 is not limited to the case where the entire surface has the average absorbance and the formation index within the above range, but may have only a part of the average absorbance within the above range.
  • the overall basis weight of the top sheet 40 is less than 60 gsm, preferably in the range of 18 gsm to 44 gsm.
  • the top sheet 40 is not limited to an air-through nonwoven fabric, and may be composed of various nonwoven fabrics such as point bonds, spun bonds, and SMS (spun bond / melt blown spun bond). Furthermore, the color of the nonwoven fabric constituting the top sheet 40 is not limited to white, and can be appropriately selected in consideration of the visibility of the colored portion 55 of the upper covering sheet 50.
  • FIG. 3 shows a high absorbance region 40A and a low absorbance region 40B formed on the top sheet 40 by applying formation unevenness.
  • the high absorbance region 40A is a region determined to have an absorbance higher than the threshold value as a result of the binarization process using the average absorbance of the entire top sheet 40 as a threshold value.
  • the low absorbance region 40B is a region determined to have an absorbance lower than the threshold value as a result of the binarization process.
  • the dots 55 of the upper covering sheet 50 are visible from the skin facing surface side of the disposable diaper 10 through both the high absorbance region 40 ⁇ / b> A and the low absorbance region 40 ⁇ / b> B of the top sheet 40.
  • the average absorbance and formation index of the top sheet 40 are measured using a formation tester (FMT-MIII) available from Nomura Corporation.
  • FMT-MIII formation tester
  • a non-woven fabric sample of A4 size (length 29.7 cm ⁇ width 21.0 cm) is placed on a sample stage, and a transmission image when the light of an irradiation lamp is applied to the sample is taken with a two-dimensional CCD camera.
  • the captured image is decomposed into an appropriate number of pixels (for example, 320 ⁇ 320 pixels), the intensity of light received by each pixel is measured, and the absolute transmittance t (%) of light is expressed by the following formula (1 ) For each pixel.
  • the absolute transmittance refers to the light transmittance for each pixel when light is transmitted through the sample itself
  • the average absorbance refers to the average value of absorbance obtained for the entire A4 size sample.
  • V100 intensity of illumination lamp on V0: intensity of illumination lamp off
  • Vt intensity of illumination lamp on with sample placed
  • Vr intensity of illumination lamp off with sample on and absolute transmittance t below
  • the top sheet 40 is made of non-woven fabric, and the formation index of the top sheet 40 is in the range of 180 to 557, so that an appropriate unevenness is imparted to the texture of the top sheet 40, whereby a disposable diaper
  • the dots 55 seen through the top sheet 40 from the side facing the skin 10 are shaded. This creates the illusion that the shades are shadows of the holes, and the dots 55 are not merely patterns or patterns. This produces an effect that looks like
  • the dot 55 looks like the shadow of a fiber by making the shape of the dot 55 long in the 1st direction L along the orientation of the fiber in the top sheet 40, the shadow is expressed on the upper coating sheet 50.
  • the effect that the dots 55 appear as if they are holes can be enhanced.
  • the direction in which the dot row 55A extends coincide with the first direction L along the fiber orientation in the top sheet 40, the shadow of the fiber of the top sheet 40 over the plurality of dots 55 constituting the row 55A. This part is formed well. Thereby, the effect which looks as if the dot 55 is a hole can be heightened, and the impression that the hole exists in the disposable diaper 10 can further be heightened.
  • the user is given an impression that a hole that is not actually present in the disposable diaper 10, and the user is impressed that the disposable diaper 10 has high absorption performance. It becomes possible.
  • the average absorbance of the top sheet 40 in the range of 275 to 1694, the visibility from the skin facing surface side of the plurality of dots 55 constituting the colored portion of the upper covering sheet 50 is ensured.
  • the absorbance is lower than 275, the top sheet 40 is excessively transparent, and the impression as if the dots 55 are simple patterns or symbols is enhanced.
  • the absorbance is higher than 1694, the shielding property of the top sheet 40 is increased, and the dots 55 may be difficult to see from the skin facing surface side of the disposable diaper 10.
  • the interval G2 between the dots 55 adjacent in the second direction W is constant and falls within the range of 0.75 mm to 3.5 mm, so that the dots 55 are appropriately densely packed, and the entire top sheet 40 is covered. It is possible to appropriately ensure the appearance frequency at which the dots 55 are visually recognized. Thereby, even in a region where the absorbance is relatively high (for example, the high absorbance region 40A), the dots 55 appear on the skin facing surface side through the top sheet 40, and the top sheet 40 is between the colored portion and the other non-colored portions. It is possible to further maintain the impression that a hole is present in the disposable diaper 10 while maintaining the contrast through the medium.
  • the interval G1 between the dots 55 adjacent in the first direction L is preferably within a range of 0.5 mm to 10 mm.
  • the color difference between the colored portion and the non-colored portion other than the colored portion via the top sheet 40 is preferably in the range of 3.2 to 13, and the color difference in such a range is set. Further, the contrast between the colored portion and the non-colored portion seen through the top sheet 40 becomes better, and it becomes easy to visually recognize the dots 55 from the skin facing surface side.
  • the width B of the dots 55 becomes narrower than the non-colored portion, and the depth of the hole in which the dots 55 are generated is reduced. Since an impression is emphasized, the impression that a hole exists in the disposable diaper 10 can be further enhanced.
  • the dots 55 are moderate with respect to the first direction L along the fiber orientation in the top sheet 40. It is possible to make the dimensions suitable for making it look like a hole.
  • FIG. 5 is a diagram for explaining the effect obtained by the present embodiment, and is a comparison of how dots 55 are obtained when different nonwoven fabrics are used as the top sheet 40.
  • a to N are samples of the nonwoven fabric used for the evaluation, and specifically, as follows.
  • both the samples C and E are concavo-convex air-through non-woven fabrics, but the sample C is concavo-convex formed by an air jet method, whereas the sample E is mechanical secondary processing (gear processing). ) To form irregularities.
  • the air jet method the fiber in the portion corresponding to the concave portion is blown away by the air flow, so that a difference in basis weight occurs between the portion corresponding to the convex portion.
  • the sample D is also formed by the air jet method similarly to the sample C. However, the sample D is different from the sample C in the fiber diameter and fiber type, and also in the air blowing interval.
  • samples I and J not only differ in basis weight, but also differ in fiber type.
  • Numbers 1 to 32 indicate the upper covering sheet 50 used for the evaluation, and the length A and width B of the dots 55 and the intervals G1 and G2 between the dots 55 are changed between the sheets with different numbers.
  • the average absorbance is preferably in the range of 275 to 1694, and the formation index is preferably in the range of 180 to 557.
  • the basis weight of the top sheet is preferably less than 60 gsm. When the basis weight of the top sheet is 60 gsm or more, it is difficult to visually recognize the colored portion through the top sheet, and it is difficult to exhibit a visual effect that the colored portion is a hole.
  • the length A of the dot 55 and the interval G1 in the first direction L are respectively shown.
  • the width B is in the range of 0.1 mm to 0.7 mm
  • the gap G2 in the second direction W is in the range of 0.75 mm to 3.5 mm. Good evaluation of ⁇ or ⁇ is obtained.
  • the length A is in the range of 0.5 mm to 1.75 mm.
  • the gap G1 in one direction L is in the range of 0.5 mm to 10 mm, a good evaluation of ⁇ is obtained.
  • FIG. 6 is a plan view of a disposable diaper 10 ′ showing a modification example regarding an object on which a coloring part is provided.
  • the colored portion is provided in the upper covering sheet 50 disposed between the absorbent body 30 and the top sheet 40 as a separate sheet member from the lower covering sheet 35 surrounding the absorbent body 30. .
  • the colored portion may be provided on both the upper cover sheet 50 and the lower cover sheet 35, or may be provided only on the lower cover sheet 35 without being provided on the upper cover sheet 50.
  • the upper covering sheet 50 and the lower covering sheet 35 constitute a “second skin face sheet” and give the user the impression that a hole exists over the entire skin facing surface of the absorbent body 30. Is possible.
  • the lower covering sheet 35 constitutes a “second skin sheet”, and the impression that the holes are unevenly distributed in the region near the side edge of the absorber 30 can be emphasized.
  • printing can be employed in any example.
  • the whole absorber 30 is surrounded by one coating sheet 35 ', and the coloring part is provided in the part which touches the skin opposing surface of the absorber 30 among coating sheet 35'.
  • the covering sheet 35 ′ constitutes a “second skin sheet”.
  • the colored portion is provided on at least one of the upper covering sheet 50 and the lower covering sheet 35 surrounding the absorber 30.
  • a coloring part is provided in what is called a second sheet arrange
  • the second sheet constitutes the “second skin sheet”.
  • FIG. 7 is a schematic diagram schematically illustrating a modification example regarding the configuration of the coloring portion.
  • side portions between the center in the second direction W and the central portion in the vicinity thereof in the upper covering sheet 50 and the portions on both sides sandwiching the central portion (hereinafter referred to as “side portions”).
  • the density of the dots 55 is different, and in the center, the interval G21 between the dots 551 in the second direction W is narrower than the interval G22 in the side portion. This makes it possible to emphasize the impression that more holes are present in the central part near the urination position.
  • the length A1 of the dot 551 is shorter than the length A2 of the side portion in the central portion of the upper covering sheet 50.
  • the width B1 of the dot 551 is larger than the width B2 at the side in the central portion of the upper covering sheet 50.
  • disposable diapers 10, 10 have been adopted as absorbent articles.
  • the absorbent article is not limited to a disposable diaper, and may be a breast milk pad or a sanitary napkin.
  • FIG. 8 is a plan view of a breast milk pad 100 which is an absorbent article according to another embodiment of the present invention.
  • FIG. 9 is a cross-sectional view of the breast milk pad 100 shown in FIG. 8 taken along line BB.
  • the breast milk pad 100 includes an absorber 130, and the absorber 130 is covered with two covering sheets (an upper covering sheet 151 and a lower covering sheet 152) having liquid absorbency.
  • these two cover sheets 151 and 152 constitute a “second skin sheet”.
  • the upper cover sheet 151 has a dimension that substantially matches the absorber 130 in the plan view of FIG. 8, and is disposed on the skin facing surface of the absorber 130.
  • the lower covering sheet 152 covers the bottom surface which is the non-skin facing surface of the absorbent body 130 and the two side edges extending in the first direction L, and the both end edges overlap with the side edges of the upper covering sheet 151. It is bent and arranged.
  • the nonwoven fabric 140 which comprises a "1st skin surface sheet” is arrange
  • the nonwoven fabric 140 forms a contact surface for the wearer.
  • the upper covering sheet 151 and the lower covering sheet 152 are provided with a colored portion over the entire surface thereof, and the colored portion is aligned with the fiber orientation of the nonwoven fabric 140 in any of the covering sheets 151 and 152. It is composed of dots having a long shape in the first direction L, and is arranged so as to constitute a dot row continuous in the first direction L.
  • the upper and lower dots also overlap at the portion where the two covering sheets 151 and 152 overlap, and these overlapping dots are darker through the nonwoven fabric 140 than the portion where only the upper covering sheet 151 is disposed. Appears as a shadow. Thereby, it is used between the area
  • a side edge in the second direction W is provided in the breast milk pad 100 shown in FIG.
  • the dots of the upper covering sheet 151 overlap with the blank area of the lower covering sheet 152, so that the area in the central area Z where only the upper covering sheet 151 is arranged is smaller.
  • absorbent articles according to the first to third modifications will be described.
  • the same components as those in the above-described embodiment are denoted by the same reference numerals and the description thereof is omitted.
  • Absorbent articles according to Modifications 1 to 3 are different from the embodiment in the configuration of the colored portion. Moreover, the structure of the coloring part is the same over the 2nd skin sheet as for the absorbent article which concerns on the modification 1.
  • FIG. Absorbent articles according to Modification 2 and Modification 3 are different in the configuration of the colored portion at the center and the configuration of the colored portion at the side. Table 1 shows the configuration of the first skin sheet and the configuration of the second skin sheet according to the absorbent article according to Modifications 1 to 3.
  • the coloring part of this invention is comprised as follows.
  • the length (A) of the colored part in the first direction 0.5 mm to 1.85 mm
  • the length (B) of the colored part in the second direction 0.1 mm to 0.7 mm.
  • the colored portion can give an impression like an opening. More preferably, the distance between the colored parts adjacent in the first direction (G1): 0.5 mm or more and 10 mm or less, and the distance between the colored parts adjacent in the second direction (G2): 0.75 mm or more. By being 3.5 mm or less, the colored part can give an impression like an opening more.
  • the first direction is the longitudinal direction and the second direction is the width direction.
  • the absorbent article according to the present invention includes an embodiment in which the first direction is the width direction and the second direction is the longitudinal direction.
  • the fiber orientation direction in the first skin sheet is the width direction.
  • ascertain the absorption performance of an absorbent article by the visual effect of the skin opposing surface of an absorbent article can be provided.
  • Disposable diapers DESCRIPTION OF SYMBOLS 20 ... Chassis 30 ... Absorber 35 ... Lower coating sheet 40 ... Top sheet (1st skin sheet) 40A: High absorbance region 40B: Low absorbance region 50: Upper covering sheet (second skin sheet) 55 ... dot (colored part) 55A ... dot row 60 ... side flap L ... first direction W ... second direction A ... dot length B ... dot width G1 ... dot spacing in the first direction G2 ... dot spacing in the second direction 100 ... breast milk Pad (absorbent article) 130 ... Absorber 140 ... Non-woven fabric (first skin sheet) 151 ... Upper covering sheet (second skin sheet) 152 ... lower covering sheet (second skin sheet)

Abstract

An absorbent article (10) includes: an absorbing body (30); a first skin-side sheet (40) made of non-woven fabric; and a second skin-side sheet (50) disposed between the absorbing body and the first skin-side sheet, and has a first direction (L) extending along the orientation of fiber in the first skin-side sheet and a second direction (W) perpendicular to the first direction. The first skin-side sheet has a region having a formation index of 180 to 557. The second skin-side sheet has long colored sections (55) extending in the first direction and formed of a plurality of dots. The colored sections can be viewed from the skin facing side of the absorbent article through the aforementioned region in the first skin-side sheet. The length of the colored sections in the first direction is 0.5 mm to 1.85 mm. The length of the colored sections in the second direction is 0.1 mm to 0.7 mm. The distance between adjacent colored sections in the first direction is 0.5 mm to 10 mm. The distance between adjacent colored sections in the second direction is 0.75 mm to 3.5 mm.

Description

吸収性物品Absorbent articles
 本発明は、使い捨ておむつ、母乳パッドおよび生理用ナプキン等の吸収性物品に関する。 The present invention relates to absorbent articles such as disposable diapers, breast milk pads and sanitary napkins.
 吸収性物品の肌対向面側からトップシートと呼ばれる液透過性シートを通じて視認可能な着色部を有する吸収性物品が知られている。特許文献1には、このような吸収性物品として、異なる色調の少なくとも二つの領域を有する着色部が設けられ、これらの領域がトップシート上にまたはトップシートを通じて深みの知覚が創り出されるような関係に配置された吸収性物品が記載されている。深みの知覚が創り出されることで、分泌物が吸収性物品の内部に引き込まれる機能ないし動作を視覚的に表すことができ、使用者に対して使用前および使用後の安心感を与えることが可能であるとされている。 An absorbent article having a colored portion that is visible through a liquid-permeable sheet called a top sheet from the skin facing surface side of the absorbent article is known. In Patent Document 1, as such an absorbent article, a colored portion having at least two regions of different colors is provided, and these regions create a perception of depth on or through the top sheet. Absorbent articles placed in the are described. By creating a perception of depth, it is possible to visually represent the function or action of the secretions being drawn into the absorbent article, giving the user a sense of security before and after use. It is said that.
特表2005-512682号公報JP 2005-512682 A
 しかし、特許文献1に記載の吸収性物品は、深みの知覚を創り出すことで、外部からではその存在を認識することのできない吸収性材料の機能等を視覚的に表すようにしたものであり、吸収性物品が高い吸収性能を有する印象を与えることが意図されたものではない。 However, the absorbent article described in Patent Document 1 is designed to visually express the function of an absorbent material that cannot be recognized from the outside by creating a perception of depth, It is not intended to give the impression that the absorbent article has a high absorbent performance.
 本発明の目的は、吸収性物品に実際にはない孔が存在するような印象を使用者に与えることで、使用者に対し、吸収性物品が高い吸収性能を有することを印象付けることにある。 An object of the present invention is to give an impression that the absorbent article has high absorption performance to the user by giving the user an impression that holes that are not actually present in the absorbent article. .
 本発明は、一形態において、吸収性物品により具現される。 The present invention is embodied in one form by an absorbent article.
 本発明の一形態に係る吸収性物品は、吸収体と、吸収体の肌対向面側に配置された、不織布からなる第1肌面シートと、吸収体と第1肌面シートとの間に配置された第2肌面シートと、を備え、第1肌面シートにおける繊維の配向に沿った第1方向と、第1方向と直交する第2方向とを有する。第1肌面シートは、地合指数が180~557の範囲にある領域を有し、第2肌面シートは、第1方向に長い複数のドットからなる着色部を有し、着色部は、第1肌面シートの上記領域を通じて吸収性物品の肌対向面側から視認可能であり、前記着色部の前記第1方向の長さは、0.5mm以上1.85mm以下であり、前記着色部の前記第2方向の長さは、0.1mm以上0.7mm以下であり、前記第1方向に隣接する前記着色部同士の間隔は、0.5mm以上10mm以下であり、前記第2方向に隣接する前記着色部同士の間隔は、0.75mm以上3.5mm以下である。 The absorbent article which concerns on one form of this invention is between the absorber, the 1st skin surface sheet which consists of a nonwoven fabric arrange | positioned at the skin opposing surface side of an absorber, and an absorber and a 1st skin surface sheet. A first skin surface sheet, and a first direction along the fiber orientation in the first skin surface sheet, and a second direction orthogonal to the first direction. The first skin sheet has a region where the formation index is in the range of 180 to 557, the second skin sheet has a colored portion composed of a plurality of dots long in the first direction, It is visible from the skin facing surface side of the absorbent article through the region of the first skin sheet, and the length of the colored portion in the first direction is 0.5 mm or more and 1.85 mm or less, and the colored portion. The length in the second direction is not less than 0.1 mm and not more than 0.7 mm, and the interval between the colored portions adjacent to each other in the first direction is not less than 0.5 mm and not more than 10 mm, and in the second direction The interval between the colored portions adjacent to each other is 0.75 mm or more and 3.5 mm or less.
 本発明によれば、吸収性物品に実際にはない孔が存在するような印象を使用者に与え、使用者に対し、吸収性物品が高い吸収性能を有することを印象付けることができる。 According to the present invention, it is possible to give the user an impression that a hole that does not actually exist in the absorbent article, and to give the user an impression that the absorbent article has high absorption performance.
本発明の一実施形態に係る吸収性物品である使い捨ておむつの平面図The top view of the disposable diaper which is an absorptive article concerning one embodiment of the present invention. 同上実施形態に係る使い捨ておむつのA-A線断面図AA line sectional view of a disposable diaper concerning an embodiment same as the above 同上実施形態に係る使い捨ておむつの肌対向面側からみた状態を模式的に示す拡大平面図The enlarged plan view which shows typically the state seen from the skin opposing surface side of the disposable diaper which concerns on embodiment same as the above. 同上実施形態に係る使い捨ておむつに設けられる第2肌面シートの拡大平面図The enlarged plan view of the 2nd skin sheet provided in the disposable diaper concerning an embodiment same as the above 同上実施形態により得られる効果の説明図Explanatory drawing of the effect acquired by embodiment same as the above 同上実施形態に係る使い捨ておむつの、着色部の配置に関する変更例を示す概略図Schematic which shows the example of a change regarding arrangement | positioning of the coloring part of the disposable diaper which concerns on embodiment same as the above. 着色部の構成に関する変更例を示す概略図Schematic showing an example of changes related to the configuration of the coloring section 本発明の他の実施形態に係る吸収性物品である母乳パッドの平面図The top view of the breast milk pad which is an absorptive article concerning other embodiments of the present invention. 同上実施形態に係る母乳パッドのB-B線断面図BB line sectional view of a breast milk pad according to the same embodiment
 以下に図面を参照して、本発明の実施の形態について説明する。 Embodiments of the present invention will be described below with reference to the drawings.
 本発明の一実施形態に係る吸収性物品は、吸収体と、吸収体の肌対向面側に配置された、不織布からなる第1肌面シートと、吸収体と第1肌面シートとの間に配置された第2肌面シートと、を備え、第1肌面シートにおける繊維の配向に沿った第1方向と、第1方向と直交する第2方向とを有する。第1肌面シートは、地合指数が180~557の範囲にある領域を有し、第2肌面シートは、第1方向に長い複数のドットからなる着色部を有し、着色部は、第1肌面シートの上記領域を通じて吸収性物品の肌対向面側から視認可能であり、前記着色部の前記第1方向の長さは、0.5mm以上1.85mm以下であり、前記着色部の前記第2方向の長さは、0.1mm以上0.7mm以下であり、前記第1方向に隣接する前記着色部同士の間隔は、0.5mm以上10mm以下であり、前記第2方向に隣接する前記着色部同士の間隔は、0.75mm以上3.5mm以下である。 The absorbent article which concerns on one Embodiment of this invention is between the absorber, the 1st skin surface sheet which consists of a nonwoven fabric arrange | positioned at the skin opposing surface side of an absorber, and an absorber and a 1st skin surface sheet. And a second direction that is perpendicular to the first direction and a first direction along the orientation of the fibers in the first skin surface sheet. The first skin sheet has a region where the formation index is in the range of 180 to 557, the second skin sheet has a colored portion composed of a plurality of dots long in the first direction, It is visible from the skin facing surface side of the absorbent article through the region of the first skin sheet, and the length of the colored portion in the first direction is 0.5 mm or more and 1.85 mm or less, and the colored portion. The length in the second direction is not less than 0.1 mm and not more than 0.7 mm, and the interval between the colored portions adjacent to each other in the first direction is not less than 0.5 mm and not more than 10 mm, and in the second direction The interval between the colored portions adjacent to each other is 0.75 mm or more and 3.5 mm or less.
 このように、第1肌面シートを不織布から構成し、第1肌面シートの地合指数を180~557の範囲としたことで、第1肌面シートの地合いに適度なムラが付され、吸収性物品の肌対向面側から第1肌面シートを通じてみえるドットに濃淡が生じることとなる。また、着色部の第1方向の長さが0.5mm以上1.85mm以下であり、着色部の第2方向の長さが0.1mm以上0.7mm以下であり、前記第1方向に隣接する前記着色部同士の間隔は、0.5mm以上10mm以下であり、前記第2方向に隣接する前記着色部同士の間隔は、0.75mm以上3.5mm以下であるため、着色部が孔のような印象を与えることができる。そして、このドットの濃淡が孔の陰影であるかのような錯視効果を生じ、ドットが単なる模様ないし図柄としてではなく、孔であるかのようにみえる印象を生じる。ドットを第1肌面シートにおける繊維の配向に沿った方向(第1方向)に長い形状とすることで、ドットが繊維の影のようにみえ、第2肌面シートに陰影が表現されることから、ドットが孔であるかのようにみえる効果を高めることができる。これにより、吸収性物品に実際にはない孔が存在する印象を使用者に与え、使用者に対し、吸収性物品が高い吸収性能を有することを印象付けることが可能となる。 As described above, the first skin sheet is made of non-woven fabric, and the formation index of the first skin sheet is in the range of 180 to 557, so that the texture of the first skin sheet is moderately uneven. Light and dark will occur in the dots that can be seen through the first skin sheet from the skin facing surface side of the absorbent article. Further, the length of the colored portion in the first direction is 0.5 mm or more and 1.85 mm or less, the length of the colored portion in the second direction is 0.1 mm or more and 0.7 mm or less, and is adjacent to the first direction. The interval between the colored portions is 0.5 mm or more and 10 mm or less, and the interval between the colored portions adjacent in the second direction is 0.75 mm or more and 3.5 mm or less. Such an impression can be given. Then, the illusion effect that the shade of the dot is a shadow of the hole is produced, and the impression that the dot is not a simple pattern or pattern but a hole is produced. By making the dots long in the direction (first direction) along the orientation of the fibers in the first skin sheet, the dots look like the shadow of the fibers, and the shadow is expressed on the second skin sheet Therefore, it is possible to enhance the effect that the dots appear to be holes. Thereby, it is possible to give the user an impression that a hole that does not actually exist in the absorbent article, and to give the user an impression that the absorbent article has high absorption performance.
 第1肌面シートの上記領域は、平均吸光度が275~1694の範囲にあるのが好ましい。 The above area of the first skin sheet preferably has an average absorbance in the range of 275 to 1694.
 これにより、第2肌面シートの着色部を構成する複数のドットの肌対向面側からの視認性が確保される。 Thereby, the visibility from the skin facing surface side of the plurality of dots constituting the colored portion of the second skin sheet is ensured.
 着色部は、ドットが第1方向に並んだ複数のドット列を含み、ドット列は、第2方向に互いに隔てて配置されているのが好ましい。 The colored portion includes a plurality of dot rows in which dots are arranged in the first direction, and the dot rows are preferably arranged apart from each other in the second direction.
 このように、ドット列が延びる方向を第1肌面シートにおける繊維の配向に沿った方向(第1方向)と一致させることで、列を構成する複数のドットに亘って第1肌面シートの繊維の影となる部分が良好に形成され、ドットが孔であるかのようにみえる効果を高め、吸収性物品に孔が存在する印象をさらに高めることができる。 Thus, by making the direction in which the dot rows extend coincide with the direction (first direction) along the orientation of the fibers in the first skin sheet, the first skin sheet extends over a plurality of dots constituting the row. The part which becomes a shadow of a fiber is formed favorably, the effect which makes a dot look as if it is a hole can be improved, and the impression that a hole exists in an absorptive article can further be improved.
 着色部は、複数のドット列の間で、第2方向に隣り合うドットが第1方向に互いにずれて配置されているのが好ましい。 In the colored portion, it is preferable that the dots adjacent in the second direction are shifted from each other in the first direction between the plurality of dot rows.
 このように、複数のドット列の間でドットが千鳥状に配置されることで、孔が散在しているようにみせることが可能となり、吸収性物品に孔が存在する印象をさらに高めることができる。 Thus, by arranging the dots in a staggered manner between the plurality of dot rows, it becomes possible to make the holes appear to be scattered, and the impression that the holes exist in the absorbent article can be further enhanced. it can.
 着色部は、第2方向に隣接するドットの間隔が一定であり、0.75~3.5mmの範囲にあるのが好ましい。 In the colored portion, it is preferable that the interval between adjacent dots in the second direction is constant and is in the range of 0.75 to 3.5 mm.
 これにより、ドットを適度に密集させ、第1肌面シートの上記領域全体に亘ってドットが視認される出現頻度を適度に確保することが可能となる。よって、吸光度が比較的高い領域においても第1肌面シートを通じてドットを出現させ、着色部とそれ以外の非着色部との間で第1肌面シートを介したコントラストを適度に維持して、吸収性物品に孔が存在する印象をさらに高めることができる。 Thereby, it is possible to moderately dense the dots and to appropriately ensure the appearance frequency at which the dots are visually recognized over the entire area of the first skin sheet. Therefore, even in a region where the absorbance is relatively high, dots appear through the first skin sheet, and the contrast through the first skin sheet is moderately maintained between the colored portion and the other non-colored portion, The impression that a hole exists in an absorbent article can be further enhanced.
 着色部は、ドットの第2方向に沿った寸法が隣り合うドット列の間隔よりも小さいのが好ましい。 It is preferable that the colored portion has a size along the second direction of the dots smaller than the interval between adjacent dot rows.
 これにより、非着色部に対してドットの幅が狭くなり、ドットが生じる孔の深みの印象が強調されるので、吸収性物品に孔が存在する印象をさらに高めることができる。 This makes the dot width narrower than the non-colored portion and emphasizes the impression of the depth of the hole where the dot is formed, so that the impression that the absorbent article has a hole can be further enhanced.
 着色部は、第1方向におけるドットの寸法をAとし、第2方向におけるドットの寸法をBとしたときに、比A/Bが1~18.5の範囲にあるのが好ましい。 The colored portion preferably has a ratio A / B in the range of 1 to 18.5, where A is the dot size in the first direction and B is the dot size in the second direction.
 このように、ドットの寸法A、Bの比A/Bを1~18.5の範囲としたことで、ドットを第1肌面シートにおける繊維の配向に沿った方向(第1方向)に対して適度に長い形状とし、孔であるかのようにみせるのに好適な寸法とすることができる。 Thus, by setting the ratio A / B of the dimensions A and B of the dots in the range of 1 to 18.5, the dots are in the direction along the fiber orientation in the first skin sheet (first direction). Therefore, the shape can be suitably long so that it looks like a hole.
 以下に、図面を参照して具体的に説明する。 Hereinafter, specific description will be given with reference to the drawings.
 図1は、本実施形態に係る吸収性物品である使い捨ておむつ10の全体的な構成を概略的に示す平面図である。図1は、使い捨ておむつ10を身体装着前の展開状態で示している。使い捨ておむつ10は、テープタイプのものに限らず、パンツタイプのものであってもよい。 FIG. 1 is a plan view schematically showing an overall configuration of a disposable diaper 10 which is an absorbent article according to the present embodiment. FIG. 1 shows a disposable diaper 10 in an unfolded state before being worn on the body. The disposable diaper 10 is not limited to a tape type but may be a pants type.
 本実施形態に係る使い捨ておむつ10は、着用者の胴回り前面にあてがわれる前胴回り域Sfと、胴回り背面に宛がわれる後胴回り域Sbと、前胴回り域Sfおよび後胴回り域Sbの間に位置し、着用者の股間部にあてがわれる股下域Scとを有し、大別すると、シャーシ20と、吸収体30と、第1肌面シート40と、第2肌面シート50とから構成される。ここで、前胴回り域Sfと後胴回り域Sbとの間で股下域Scが延びる方向を第1方向Lとし、第1肌面シート40の表面に平行であり、第1方向Lに対して直交する方向を第2方向Wとする。 The disposable diaper 10 according to the present embodiment is located between the front waistline region Sf applied to the front surface of the waistline of the wearer, the rear waistline region Sb addressed to the back surface of the waistline, the front waistline region Sf, and the rear waistline region Sb. The crotch region Sc applied to the wearer's crotch region is roughly divided into a chassis 20, an absorbent body 30, a first skin sheet 40, and a second skin sheet 50. The Here, a direction in which the crotch region Sc extends between the front waistline region Sf and the rear waistline region Sb is defined as a first direction L, which is parallel to the surface of the first skin sheet 40 and orthogonal to the first direction L. The direction to be taken is the second direction W.
 シャーシ20は、使い捨ておむつ10の全体的な外形を形成しており、おむつ本体を構成して、着用者の身体に対して吸収体30を位置的に固定するものである。 The chassis 20 forms the overall outer shape of the disposable diaper 10, constitutes a diaper main body, and fixes the absorber 30 relative to the wearer's body.
 シャーシ20(具体的には、後に述べるバック不織布21)は、後胴回り域Sbにおいて、第2方向Wの外側に延出する一対のサイドフラップ60を形成する。サイドフラップ60には、ファスニングテープ105が取り付けられている。ファスニングテープ105には、フックシート110が貼り付けられており、このフックシート110を前胴回り域Sfに設けられたターゲットテープ120に係合させることで、使い捨ておむつ10を装着状態に維持することが可能である。 The chassis 20 (specifically, the back nonwoven fabric 21 to be described later) forms a pair of side flaps 60 extending outward in the second direction W in the rear waistline region Sb. A fastening tape 105 is attached to the side flap 60. A hook sheet 110 is affixed to the fastening tape 105. By engaging the hook sheet 110 with a target tape 120 provided in the front waistline region Sf, the disposable diaper 10 can be maintained in the mounted state. Is possible.
 吸収体(図1中、太い点線によりその輪郭のみを示す)30は、全体として縦長の矩形形状をなしており、その長手方向が第1方向Lと一致する状態で、シャーシ20の肌対向面上に配置されている。吸収体30に用いる材料について特に限定はなく、親水性繊維および吸収性ポリマー等、公知の部材および材料を適宜採用することができる。 The absorber 30 (only its outline is shown by a thick dotted line in FIG. 1) has a vertically long rectangular shape as a whole, and the skin facing surface of the chassis 20 in a state where the longitudinal direction coincides with the first direction L. Is placed on top. There is no limitation in particular about the material used for the absorber 30, A well-known member and material, such as a hydrophilic fiber and an absorptive polymer, can be employ | adopted suitably.
 第1肌面シート(以下「トップシート」という)40は、吸収体30の肌対向面側に配置され、着用者の肌と直接接触する使い捨ておむつ10の内面を形成するものである。本実施形態において、トップシート40は、液透過性を有する白色不織布で構成され、具体的には、所定範囲の平均吸光度および地合指数を有するエアスルー不織布で構成されている。 A first skin sheet (hereinafter referred to as “top sheet”) 40 is disposed on the skin facing surface side of the absorbent body 30 and forms the inner surface of the disposable diaper 10 that directly contacts the wearer's skin. In this embodiment, the top sheet 40 is comprised with the white nonwoven fabric which has liquid permeability, and is specifically comprised with the air through nonwoven fabric which has the average light absorbency and formation index of a predetermined range.
 第2肌面シート50は、本実施形態に係る着色部55を具現する。本実施形態において、第2肌面シート50は、液吸収性を有する上部被覆シートとして実現され、吸収体30とトップシート40との間、換言すれば、吸収体30の肌対向面側において、トップシート40の非肌対向面側に配置されている。上部被覆シート50は、印刷により着色部55が設けられたティッシュ素材で構成され、図1の平面視において、吸収体30とほぼ一致する外形を有する。上部被覆シート50は、後に述べる下部被覆シート35とともに、一般にコアラップと称される部材を構成するものである。 The 2nd skin sheet 50 embodies the coloring part 55 concerning this embodiment. In the present embodiment, the second skin sheet 50 is realized as an upper covering sheet having liquid absorbency, and in other words, between the absorbent body 30 and the top sheet 40, in other words, on the skin facing surface side of the absorbent body 30, The top sheet 40 is disposed on the non-skin facing surface side. The upper covering sheet 50 is made of a tissue material provided with a colored portion 55 by printing, and has an outer shape that substantially matches the absorber 30 in the plan view of FIG. The upper covering sheet 50 constitutes a member generally called a core wrap together with the lower covering sheet 35 described later.
 以上に加え、使い捨ておむつ10は、吸収体30に対して第2方向Wの外側に起立性の立体カフを形成する第1弾性体70を備えるとともに、着用者の脚回りに対応する部分でシャーシ20に第1方向Lの伸縮性を付与する第2弾性体80を備える。第1弾性体70は、吸収体30の外側で前胴回り域Sfから後胴回り域Sbにかけて延在し、第1方向Lに伸縮する。第2弾性体80は、着用者の脚回りに対応するシャーシ20の側縁部で股下域Sc全体に亘って延在し、第1方向Lに伸縮する。第1弾性体70により形成される立体カフにより、排尿位置を第2方向Wに包囲し、排尿位置から第2方向Wの外側に向かう排泄物の漏れを抑えることができる。さらに、第2弾性体80によりシャーシ20の側縁部に伸縮性が付与されることで、脚回りにおける使い捨ておむつ10のフィット性を高めることができる。 In addition to the above, the disposable diaper 10 includes a first elastic body 70 that forms an upright three-dimensional cuff on the outer side in the second direction W with respect to the absorbent body 30, and a chassis corresponding to the circumference of the wearer's leg. 20 is provided with a second elastic body 80 that imparts stretchability in the first direction L. The first elastic body 70 extends from the front waistline region Sf to the rear waistline region Sb on the outside of the absorber 30 and expands and contracts in the first direction L. The second elastic body 80 extends over the entire crotch region Sc at the side edge of the chassis 20 corresponding to the circumference of the wearer's leg, and expands and contracts in the first direction L. The three-dimensional cuff formed by the first elastic body 70 surrounds the urination position in the second direction W, and can prevent leakage of excrement from the urination position toward the outside in the second direction W. Furthermore, the stretchability is imparted to the side edge of the chassis 20 by the second elastic body 80, so that the fit of the disposable diaper 10 around the legs can be enhanced.
 図2は、図1に示す使い捨ておむつ10のA-A線断面図である。
 シャーシ20は、複数のシート部材を積層して構成されている。具体的には、シャーシ20は、使い捨ておむつ10の最も外側の表面を形成し、着用者の衣服に当接するバック不織布21と、吸収体30とバック不織布21との間に配置されたバックフィルム22とで構成され、バック不織布21とバックフィルム22とは、接着剤(例えば、ホットメルト接着剤)により接合されている。バック不織布21は、疎水性であり、バックフィルム22は、液不透過性である。
FIG. 2 is a cross-sectional view of the disposable diaper 10 shown in FIG.
The chassis 20 is configured by laminating a plurality of sheet members. Specifically, the chassis 20 forms the outermost surface of the disposable diaper 10, and a back nonwoven fabric 21 that contacts the wearer's clothes, and a back film 22 disposed between the absorbent body 30 and the back nonwoven fabric 21. The back nonwoven fabric 21 and the back film 22 are joined by an adhesive (for example, a hot melt adhesive). The back nonwoven fabric 21 is hydrophobic, and the back film 22 is liquid impermeable.
 吸収体30は、上部被覆シート50と、上部被覆シート50とは別体のシート部材として構成された液吸収性の下部被覆シート35とにより被覆された状態にある。本実施形態では、下部被覆シート35にティッシュ素材が用いられ、吸収体30は、非肌対向面である底面と、第1方向Lに延びる二つの側縁とにおいて、下部被覆シート35により被覆されている。ここで、吸収体30の肌対向面側および第1方向Lの両側に下部被覆シート35により被覆されていない開口が形成されており、この開口を塞ぐように上部被覆シート50が配置されることで、上部被覆シート50および下部被覆シート35により吸収体30の全体が被覆されている。 The absorber 30 is in a state of being covered with an upper covering sheet 50 and a liquid-absorbing lower covering sheet 35 configured as a separate sheet member from the upper covering sheet 50. In the present embodiment, a tissue material is used for the lower covering sheet 35, and the absorber 30 is covered with the lower covering sheet 35 on the bottom surface that is the non-skin facing surface and the two side edges that extend in the first direction L. ing. Here, the opening which is not coat | covered with the lower coating sheet 35 is formed in the skin opposing surface side of the absorber 30, and the both sides of the 1st direction L, and the upper coating sheet 50 is arrange | positioned so that this opening may be plugged up Thus, the entire absorber 30 is covered with the upper cover sheet 50 and the lower cover sheet 35.
 トップシート40は、吸収体30の肌対向面側において、上部被覆シート50の全体を覆うとともに、上部被覆シート50の側縁部を第2方向Wの外側に越えて延設されている。本実施形態では、トップシート40に対して第2方向Wの外側にサイドシート25が設けられ、サイドシート25は、その内縁部が外側に折り返されるとともに、トップシート40の側縁部に重なっており、サイドシート25の折り返された部分に、立体カフを形成する第1弾性体70が挟み込まれている。サイドシート25は、後胴回り域Sbにおいて、シャーシ20のバック不織布21に倣って第2方向Wの外側に延出し、バック不織布21と接合されてサイドフラップ60を形成する。 The top sheet 40 covers the entire upper covering sheet 50 on the skin facing surface side of the absorbent body 30 and extends beyond the side edge of the upper covering sheet 50 to the outside in the second direction W. In the present embodiment, the side sheet 25 is provided on the outer side in the second direction W with respect to the top sheet 40, and the side sheet 25 has its inner edge folded back to the outside and overlapped with the side edge of the top sheet 40. The first elastic body 70 that forms a three-dimensional cuff is sandwiched between the folded portions of the side seat 25. In the rear waistline region Sb, the side sheet 25 extends outward in the second direction W following the back nonwoven fabric 21 of the chassis 20 and is joined to the back nonwoven fabric 21 to form a side flap 60.
 第2弾性体80は、バックフィルム22とサイドシート25との間に挟持されている。なお、第2弾性体80は、バック不織布21とバックフィルム22との間に挟持されていてもよい。図3は、使い捨ておむつ10の肌対向面側からみた状態を模式的に示す拡大平面図である。図4は、上部被覆シート50の拡大平面図であり、上部被覆シート50に設けられる着色部55を拡大して示している。 The second elastic body 80 is sandwiched between the back film 22 and the side sheet 25. The second elastic body 80 may be sandwiched between the back nonwoven fabric 21 and the back film 22. FIG. 3 is an enlarged plan view schematically showing a state of the disposable diaper 10 as viewed from the skin facing surface side. FIG. 4 is an enlarged plan view of the upper covering sheet 50, and shows an enlarged color portion 55 provided on the upper covering sheet 50.
 上部被覆シート50は、その肌対向面に印刷により着色部55が設けられている。着色部55の印刷方法は、フレキソ印刷、グラビア印刷、平板印刷またはオンディマンド印刷等のインクを用いた方法であってもよく、感圧インクまたは着色ホットメルト接着剤等を用いたものであってもよい。ここで、上部被覆シート50に採用されているティッシュ素材は、不織布と比べて繊維同士の隙間が狭いため、印刷に際してインクが資材の表面に残り易く、全体として鮮明な、具体的には、印刷のムラがなく、均質な印刷部を形成することが可能である。しかし、上部被覆シート50の素材として、不織布を採用することが排斥されるものではない。 The upper covering sheet 50 is provided with a colored portion 55 by printing on the skin facing surface. The printing method of the coloring part 55 may be a method using ink such as flexographic printing, gravure printing, flat printing or on-demand printing, or may be a method using pressure sensitive ink or colored hot melt adhesive. Good. Here, since the tissue material employed in the upper covering sheet 50 has a narrow gap between the fibers compared to the non-woven fabric, the ink tends to remain on the surface of the material during printing. It is possible to form a uniform printed portion without unevenness. However, employing a non-woven fabric as the material of the upper covering sheet 50 is not excluded.
 図4を参照すると、上部被覆シート50の着色部55は、第1方向Lに長い複数のドットからなる。ここで、「ドット」とは、円または楕円に限らず、破線(点線)、一点鎖線または二点鎖線等の全体として1つの直線を形成する線の「セグメント」を包含する概念として解釈する。図4に示すドット55は、破線のセグメントである。 Referring to FIG. 4, the colored portion 55 of the upper covering sheet 50 includes a plurality of dots that are long in the first direction L. Here, the “dot” is not limited to a circle or an ellipse, but is interpreted as a concept including a “segment” of a line that forms one straight line as a whole, such as a broken line (dotted line), a one-dot chain line, or a two-dot chain line. The dots 55 shown in FIG. 4 are broken line segments.
 図4において、ドット55は、所定間隔を空けて第1方向Lに並んだ複数のドットからなるドット列55Aを構成し、ドット列55Aは、第2方向Wに互いに隔てて配置されている。ドット55の寸法は、第1方向Lの長さAが0.5mm~1.85mmの範囲であるのが好ましく、第2方向Wの幅Bが0.1mm~0.7mmの範囲であるのが好ましい。使用者に与える印象の観点から、ドット55の長さAは、0.5mm~1.5mmの範囲であるのがより好ましい。さらに、第1方向Lに隣り合うドット55同士の間隔G1は、0.5mm~10mmの範囲であるのが好ましく、第2方向Wに隣り合うドット55同士の間隔G2は、0.75mm~3.5mmの範囲であるのが好ましい。ドット55同士の間隔G1、G2は、夫々0.5mm~4mm、0.75mm~2.5mmの範囲であるのがより好ましい。本実施形態において、ドット55は、長さAが幅B以上であり(B≦A)、長さAと幅Bとの比A/Bは、1~18.5の範囲にあり、より好ましくは、1~10の範囲にある。そして、ドット55の幅Bは、第2方向Wに隣り合うドット列55A同士の間隔G2よりも小さい。 In FIG. 4, the dots 55 constitute a dot row 55A composed of a plurality of dots arranged in the first direction L at a predetermined interval, and the dot rows 55A are arranged apart from each other in the second direction W. The dimensions of the dots 55 are preferably such that the length A in the first direction L is in the range of 0.5 mm to 1.85 mm, and the width B in the second direction W is in the range of 0.1 mm to 0.7 mm. Is preferred. In view of the impression given to the user, the length A of the dots 55 is more preferably in the range of 0.5 mm to 1.5 mm. Further, the interval G1 between the dots 55 adjacent in the first direction L is preferably in the range of 0.5 mm to 10 mm, and the interval G2 between the dots 55 adjacent in the second direction W is 0.75 mm to 3 mm. Preferably it is in the range of 5 mm. The distances G1 and G2 between the dots 55 are more preferably in the range of 0.5 mm to 4 mm and 0.75 mm to 2.5 mm, respectively. In the present embodiment, the dot 55 has a length A that is greater than or equal to the width B (B ≦ A), and the ratio A / B of the length A to the width B is in the range of 1 to 18.5, more preferably. Is in the range of 1-10. The width B of the dots 55 is smaller than the interval G2 between the dot rows 55A adjacent in the second direction W.
 本実施形態では、複数のドット列55Aの間で、第2方向Wに隣り合うドット55が第1方向Lに互いにずれて、千鳥状に配置されている。このような配置に限らず、隣り合うドット列55Aの間で、ドット55が第2方向Wに平行な直線上に揃えて配置されてもよいことはいうまでもない。 In the present embodiment, the dots 55 adjacent in the second direction W are shifted from each other in the first direction L and arranged in a staggered manner among the plurality of dot rows 55A. Needless to say, the dots 55 may be arranged on a straight line parallel to the second direction W between the adjacent dot rows 55A.
 さらに、ドット55は、上部被覆シート50の肌対向面の全体に亘って設けられるだけでなく、第1方向Lおよび第2方向Wの少なくとも一方に関して上部被覆シート50の肌対向面の一部にのみ設けられてもよい。 Furthermore, the dots 55 are provided not only on the entire skin facing surface of the upper covering sheet 50 but also on a part of the skin facing surface of the upper covering sheet 50 with respect to at least one of the first direction L and the second direction W. May be provided only.
 ドット55の色は、その視認性を考慮して適宜選択することが可能である。具体的には、白、黒、赤、青、紫、橙、黄、緑および藍色等のあらゆる原色、ならびにそれらの薄めの色またはそれらの混合色を選択することができる。ここで、上部被覆シート50に白色以外で地の色が付されている場合は、着色部を構成するドット55の色は、上部被覆シート50の地の色と同系色で、地の色よりも濃い色であるのが好ましい。これにより、ドット55が印刷されていない非着色部に進出色(明)を表す一方、着色部のドット55により後退色(暗)を表現する。 The color of the dots 55 can be appropriately selected in consideration of the visibility. Specifically, all primary colors such as white, black, red, blue, purple, orange, yellow, green and indigo, and their lighter colors or mixed colors thereof can be selected. Here, when the ground color other than white is applied to the upper covering sheet 50, the color of the dots 55 constituting the colored portion is similar to the ground color of the upper covering sheet 50, and is more than the ground color. Is preferably a dark color. Thus, the advancing color (bright) is expressed in the non-colored portion where the dots 55 are not printed, while the backward color (dark) is expressed by the dots 55 in the colored portion.
 図3の説明に戻り、上部被覆シート50は、その肌当接面側がトップシート40により被覆されている。 Returning to the description of FIG. 3, the upper cover sheet 50 is covered with the top sheet 40 on the skin contact surface side.
 トップシート40は、エアスルータイプの白色不織布である。トップシート40は、第1方向Lに平行な繊維の配向を有し、所定範囲の平均吸光度および地合指数を有する。本実施形態において、トップシート40は、平均吸光度が275以上1694以下の範囲にあり、地合指数が180以上557以下の範囲にある。トップシート40は、その表面全体が上記範囲の平均吸光度および地合指数を有する場合に限らず、上記範囲の平均吸光度等を一部のみで有するものであってもよい。トップシート40の全体坪量は、60gsm未満であり、好ましくは、18gsm~44gsmの範囲である。トップシート40は、エアスルー不織布に限らず、ポイントボンド、スパンボンドおよびSMS(スパンボンド・メルトブローン・スパンボンド)等、各種不織布で構成することもできる。さらに、トップシート40を構成する不織布の色は、白色に限らず、上部被覆シート50の着色部55の視認性を考慮して、適宜選択することが可能である。 The top sheet 40 is an air-through type white nonwoven fabric. The top sheet 40 has a fiber orientation parallel to the first direction L, and has a predetermined range of average absorbance and formation index. In the present embodiment, the top sheet 40 has an average absorbance in the range of 275 to 1694 and a formation index in the range of 180 to 557. The top sheet 40 is not limited to the case where the entire surface has the average absorbance and the formation index within the above range, but may have only a part of the average absorbance within the above range. The overall basis weight of the top sheet 40 is less than 60 gsm, preferably in the range of 18 gsm to 44 gsm. The top sheet 40 is not limited to an air-through nonwoven fabric, and may be composed of various nonwoven fabrics such as point bonds, spun bonds, and SMS (spun bond / melt blown spun bond). Furthermore, the color of the nonwoven fabric constituting the top sheet 40 is not limited to white, and can be appropriately selected in consideration of the visibility of the colored portion 55 of the upper covering sheet 50.
 このように、トップシート40の地合指数を180~557の範囲としたことで、トップシート40の地合いに、図3に示すようなムラが形成される。図3は、地合ムラを付することによりトップシート40に形成される高吸光度領域40Aおよび低吸光度領域40Bを示す。高吸光度領域40Aは、トップシート40全体の平均吸光度をしきい値とした二値化処理の結果、しきい値よりも高い吸光度を有すると判断される領域であり、図3において、斜線を付して示している。対して、低吸光度領域40Bは、上記二値化処理の結果、しきい値よりも低い吸光度を有すると判断される領域である。図3に示すように、上部被覆シート50のドット55は、トップシート40の高吸光度領域40Aおよび低吸光度領域40Bの双方を通じて使い捨ておむつ10の肌対向面側から視認可能である。 As described above, by setting the formation index of the top sheet 40 in the range of 180 to 557, unevenness as shown in FIG. FIG. 3 shows a high absorbance region 40A and a low absorbance region 40B formed on the top sheet 40 by applying formation unevenness. The high absorbance region 40A is a region determined to have an absorbance higher than the threshold value as a result of the binarization process using the average absorbance of the entire top sheet 40 as a threshold value. As shown. On the other hand, the low absorbance region 40B is a region determined to have an absorbance lower than the threshold value as a result of the binarization process. As shown in FIG. 3, the dots 55 of the upper covering sheet 50 are visible from the skin facing surface side of the disposable diaper 10 through both the high absorbance region 40 </ b> A and the low absorbance region 40 </ b> B of the top sheet 40.
 ここで、平均吸光度および地合指数の測定方法について説明する。
 トップシート40の平均吸光度および地合指数は、野村商事株式会社から入手可能なフォーメーションテスター(FMT-MIII)を用いて測定する。A4サイズ(縦29.7cm×横21.0cm)の不織布試料を試料台に載置し、試料に照射ランプの光を当てた際の透過像を二次元CCDカメラで撮影する。そして、撮影された像を適切な画素数(例えば、320×320画素)に分解し、それぞれの画素が受ける光の強さを測定し、光の絶対透過率t(%)を下式(1)により画素毎に算出する。ここで、絶対透過率とは、試料自体に光を透過させた場合の、画素毎の光の透過率をいい、平均吸光度とは、A4サイズの試料全体について得られる吸光度の平均値をいう。
Here, a method for measuring the average absorbance and the formation index will be described.
The average absorbance and formation index of the top sheet 40 are measured using a formation tester (FMT-MIII) available from Nomura Corporation. A non-woven fabric sample of A4 size (length 29.7 cm × width 21.0 cm) is placed on a sample stage, and a transmission image when the light of an irradiation lamp is applied to the sample is taken with a two-dimensional CCD camera. Then, the captured image is decomposed into an appropriate number of pixels (for example, 320 × 320 pixels), the intensity of light received by each pixel is measured, and the absolute transmittance t (%) of light is expressed by the following formula (1 ) For each pixel. Here, the absolute transmittance refers to the light transmittance for each pixel when light is transmitted through the sample itself, and the average absorbance refers to the average value of absorbance obtained for the entire A4 size sample.
 絶対透過率t=(Vt-Vr)/(V100-V0)×100% …(1)
 ここで、上式(1)に示す変数は、夫々次のようである。
Absolute transmittance t = (Vt−Vr) / (V100−V0) × 100% (1)
Here, the variables shown in the above equation (1) are as follows.
 V100:照射ランプ点灯の光度
 V0:照射ランプ消灯の光度
 Vt:試料を載せた状態での照射ランプ点灯の光度
 Vr:試料を載せた状態での照射ランプ消灯の光度
 そして、絶対透過率tを下式(2)により吸光度Eに換算し、得られた吸光度Eから下式(3)および(4)により地合指数を算出する。
V100: intensity of illumination lamp on V0: intensity of illumination lamp off Vt: intensity of illumination lamp on with sample placed Vr: intensity of illumination lamp off with sample on and absolute transmittance t below It converts into the light absorbency E by Formula (2), and a formation index is calculated from the obtained light absorbency E by following Formula (3) and (4).
 吸光度E=2-logt …(2)
 地合指数=吸光度Eの変動係数×10 …(3)
 変動係数=吸光度Eの標準偏差/平均吸光度×100% …(4)
 本実施形態によれば、次のような効果を得ることができる。
Absorbance E = 2-logt (2)
Formation index = Coefficient of variation of absorbance E × 10 (3)
Coefficient of variation = standard deviation of absorbance E / average absorbance × 100% (4)
According to this embodiment, the following effects can be obtained.
 本実施形態では、トップシート40を不織布から構成し、トップシート40の地合指数を180~557の範囲としたことで、トップシート40の地合いに適度なムラが付され、これにより、使い捨ておむつ10の肌対向面側からトップシート40を通じてみえるドット55に濃淡が生じることとなり、この濃淡が孔の陰影であるかのような錯視効果を生じ、ドット55が単なる模様ないし図柄としてではなく、孔であるかのようにみえる効果を生じる。 In the present embodiment, the top sheet 40 is made of non-woven fabric, and the formation index of the top sheet 40 is in the range of 180 to 557, so that an appropriate unevenness is imparted to the texture of the top sheet 40, whereby a disposable diaper As a result, the dots 55 seen through the top sheet 40 from the side facing the skin 10 are shaded. This creates the illusion that the shades are shadows of the holes, and the dots 55 are not merely patterns or patterns. This produces an effect that looks like
 そして、ドット55をトップシート40における繊維の配向に沿った第1方向Lに長い形状とすることで、ドット55が繊維の影のようにみえ、上部被覆シート50に陰影が表現されることから、ドット55が孔であるかのようにみえる効果を高めることができる。ここで、ドット列55Aが延びる方向をトップシート40における繊維の配向に沿った第1方向Lと一致させることで、列55Aを構成する複数のドット55に亘ってトップシート40の繊維の影となる部分が良好に形成される。これにより、ドット55が孔であるかのようにみえる効果を高め、使い捨ておむつ10に孔が存在する印象をさらに高めることができる。 And since the dot 55 looks like the shadow of a fiber by making the shape of the dot 55 long in the 1st direction L along the orientation of the fiber in the top sheet 40, the shadow is expressed on the upper coating sheet 50. The effect that the dots 55 appear as if they are holes can be enhanced. Here, by making the direction in which the dot row 55A extends coincide with the first direction L along the fiber orientation in the top sheet 40, the shadow of the fiber of the top sheet 40 over the plurality of dots 55 constituting the row 55A. This part is formed well. Thereby, the effect which looks as if the dot 55 is a hole can be heightened, and the impression that the hole exists in the disposable diaper 10 can further be heightened.
 このように、本実施形態によれば、使い捨ておむつ10に実際にはない孔が存在する印象を使用者に与え、使用者に対し、使い捨ておむつ10が高い吸収性能を有することを印象付けることが可能となる。 Thus, according to the present embodiment, the user is given an impression that a hole that is not actually present in the disposable diaper 10, and the user is impressed that the disposable diaper 10 has high absorption performance. It becomes possible.
 ここで、トップシート40の平均吸光度を275~1694の範囲とすることで、上部被覆シート50の着色部を構成する複数のドット55の肌対向面側からの視認性が確保される。吸光度が275よりも低い場合は、トップシート40が過度に透けて、ドット55が単なる模様ないし図柄であるかのような印象が強くなる。他方で、吸光度が1694よりも高い場合は、トップシート40の遮蔽性が増し、使い捨ておむつ10の肌対向面側からドット55がみえ難くなる可能性がある。 Here, by setting the average absorbance of the top sheet 40 in the range of 275 to 1694, the visibility from the skin facing surface side of the plurality of dots 55 constituting the colored portion of the upper covering sheet 50 is ensured. When the absorbance is lower than 275, the top sheet 40 is excessively transparent, and the impression as if the dots 55 are simple patterns or symbols is enhanced. On the other hand, when the absorbance is higher than 1694, the shielding property of the top sheet 40 is increased, and the dots 55 may be difficult to see from the skin facing surface side of the disposable diaper 10.
 そして、複数のドット列55Aの間でドット55が千鳥状に配置されることで、孔が散在しているようにみせることが可能となり、使い捨ておむつ10に孔が存在する印象をさらに高めることができる。 And by arranging the dots 55 in a staggered manner between the plurality of dot rows 55A, it becomes possible to make the holes appear scattered, and the impression that the holes are present in the disposable diaper 10 can be further enhanced. it can.
 ここで、第2方向Wに隣接するドット55の間隔G2が一定であり、0.75mm~3.5mmの範囲に収まることで、ドット55を適度に密集させ、トップシート40の全体に亘ってドット55が視認される出現頻度を適度に確保することが可能となる。これにより、吸光度が比較的高い領域(例えば、高吸光度領域40A)においてもトップシート40を通じて肌対向面側にドット55を出現させ、着色部とそれ以外の非着色部との間でトップシート40を介したコントラストを適度に維持して、使い捨ておむつ10に孔が存在する印象をさらに高めることができる。ここで、ドット55の出現頻度を確保するという観点から、第1方向Lに隣接するドット55の間隔G1は、0.5mm~10mmの範囲に収まるのが好ましい。 Here, the interval G2 between the dots 55 adjacent in the second direction W is constant and falls within the range of 0.75 mm to 3.5 mm, so that the dots 55 are appropriately densely packed, and the entire top sheet 40 is covered. It is possible to appropriately ensure the appearance frequency at which the dots 55 are visually recognized. Thereby, even in a region where the absorbance is relatively high (for example, the high absorbance region 40A), the dots 55 appear on the skin facing surface side through the top sheet 40, and the top sheet 40 is between the colored portion and the other non-colored portions. It is possible to further maintain the impression that a hole is present in the disposable diaper 10 while maintaining the contrast through the medium. Here, from the viewpoint of securing the appearance frequency of the dots 55, the interval G1 between the dots 55 adjacent in the first direction L is preferably within a range of 0.5 mm to 10 mm.
 上部被覆シート50において、着色部と着色部以外の非着色部とのトップシート40を介した色差は、3.2~13の範囲にあるのが好ましく、このような範囲の色差とすることで、トップシート40を通じてみえる着色部と非着色部との間のコントラストがより良好なものとなり、肌対向面側からドット55を視認するのが容易となる。 In the upper covering sheet 50, the color difference between the colored portion and the non-colored portion other than the colored portion via the top sheet 40 is preferably in the range of 3.2 to 13, and the color difference in such a range is set. Further, the contrast between the colored portion and the non-colored portion seen through the top sheet 40 becomes better, and it becomes easy to visually recognize the dots 55 from the skin facing surface side.
 さらに、第2方向Wにおけるドット55の寸法(幅)をドット列55Aの間隔よりも小さくすることで、非着色部に対してドット55の幅Bが狭くなり、ドット55が生じる孔の深みの印象が強調されるので、使い捨ておむつ10に孔が存在する印象をさらに高めることができる。 Furthermore, by making the size (width) of the dots 55 in the second direction W smaller than the interval between the dot rows 55A, the width B of the dots 55 becomes narrower than the non-colored portion, and the depth of the hole in which the dots 55 are generated is reduced. Since an impression is emphasized, the impression that a hole exists in the disposable diaper 10 can be further enhanced.
 そして、ドット55の長さAおよび幅Bの比A/Bを1~18.5の範囲とすることで、ドット55をトップシート40における繊維の配向に沿った第1方向Lに対して適度に長い形状とし、孔であるかのようにみせるのに好適な寸法とすることができる。 Then, by setting the ratio A / B of the length A and the width B of the dots 55 to be in the range of 1 to 18.5, the dots 55 are moderate with respect to the first direction L along the fiber orientation in the top sheet 40. It is possible to make the dimensions suitable for making it look like a hole.
 図5は、本実施形態により得られる効果を説明する図であり、トップシート40として異なる不織布を採用した場合のドット55のみえ方を比較したものである。A~Nは、評価に使用した不織布のサンプルを示し、具体的には、次のようである。 FIG. 5 is a diagram for explaining the effect obtained by the present embodiment, and is a comparison of how dots 55 are obtained when different nonwoven fabrics are used as the top sheet 40. A to N are samples of the nonwoven fabric used for the evaluation, and specifically, as follows.
 A:エアスルー不織布(坪量18gsm)
 B:エアスルー不織布(坪量25gsm)
 C:凹凸エアスルー不織布(坪量25gsm)
 D:凹凸エアスルー不織布(坪量27gsm)
 E:凹凸エアスルー不織布(坪量25gsm)
 F:エアスルー不織布(坪量40gsm)
 G:スパンボンド不織布(坪量13gsm)
 H:凹凸スパンボンド不織布(坪量18gsm)
 I:スパンボンド不織布(坪量30gsm)
 J:スパンボンド不織布(坪量60gsm)
 K:ポイントボンド不織布(坪量23gsm)
 L:SMS不織布(坪量10gsm)
 M:SMS不織布(坪量35gsm)
 N:エアスルー不織布(坪量44gsm)
A: Air-through nonwoven fabric (basis weight 18 gsm)
B: Air-through nonwoven fabric (basis weight 25 gsm)
C: Uneven air-through nonwoven fabric (basis weight 25 gsm)
D: Uneven air-through nonwoven fabric (basis weight 27 gsm)
E: Uneven air-through nonwoven fabric (basis weight 25 gsm)
F: Air-through nonwoven fabric (basis weight 40 gsm)
G: Spunbond nonwoven fabric (basis weight: 13 gsm)
H: Uneven spunbonded nonwoven fabric (basis weight 18 gsm)
I: Spunbond nonwoven fabric (basis weight 30 gsm)
J: Spunbonded nonwoven fabric (basis weight 60 gsm)
K: Point bond nonwoven fabric (basis weight 23gsm)
L: SMS nonwoven fabric (basis weight 10 gsm)
M: SMS nonwoven fabric (basis weight 35 gsm)
N: Air-through nonwoven fabric (basis weight 44 gsm)
 ここで、サンプルCおよびEは、いずれも凹凸エアスルー不織布であるが、サンプルCがエアジェット方式により凹凸が形成されたものであるのに対し、サンプルEは、機械的な二次加工(ギア加工)により凹凸が形成されている。エアジェット方式によれば、凹部に相当する部分の繊維が気流により吹き払われることで、凸部に相当する部分との間に目付の差が生じる。サンプルDもサンプルCと同様にエアジェット方式により形成されたものであるが、サンプルCとは繊維径および線維種が相違するほか、エアを吹き付ける間隔においても相違する。さらにサンプルIおよびJは、目付が異なるだけでなく、繊維種も相違する。 Here, both the samples C and E are concavo-convex air-through non-woven fabrics, but the sample C is concavo-convex formed by an air jet method, whereas the sample E is mechanical secondary processing (gear processing). ) To form irregularities. According to the air jet method, the fiber in the portion corresponding to the concave portion is blown away by the air flow, so that a difference in basis weight occurs between the portion corresponding to the convex portion. The sample D is also formed by the air jet method similarly to the sample C. However, the sample D is different from the sample C in the fiber diameter and fiber type, and also in the air blowing interval. Furthermore, samples I and J not only differ in basis weight, but also differ in fiber type.
 番号1~32は、評価に使用した上部被覆シート50を示し、異なる番号のシートの間で、ドット55の長さAおよび幅B、ドット55同士の間隔G1およびG2を変化させている。 Numbers 1 to 32 indicate the upper covering sheet 50 used for the evaluation, and the length A and width B of the dots 55 and the intervals G1 and G2 between the dots 55 are changed between the sheets with different numbers.
 10(N=10)人の成人を対象として、サンプルA~Nのそれぞれを上部被覆シート50に被せ、サンプルA~Nを肌対向面側からみた場合に、ドット55が孔として認識される度合いを三段階(○、△および×)の評価で検証した。「○」は、孔であるような印象を受けるとの積極的な判断をした被検者の数(Np)が過半数に達する場合(5<Np)を示し、「△」は、過半数に達しない場合を示す(Np≦5)。「×」は、「△」の評価のうち、特に上記判断をした被検者がいない場合(Np=0)を示す。 The degree to which the dot 55 is recognized as a hole when 10 (N = 10) adults are covered with the samples A to N on the upper covering sheet 50 and the samples A to N are viewed from the skin facing surface side. Was verified in three stages (○, △ and ×). “○” indicates a case where the number of subjects (Np) who have positively determined to receive an impression of being a hole reaches a majority (5 <Np), and “△” indicates a majority. The case where it does not do is shown (Np <= 5). “X” indicates a case where there is no subject who made the above determination among the evaluations of “Δ” (Np = 0).
 図5に示すように、JおよびM以外のサンプルで良好か評価が得られている。平均吸光度は、275~1694の範囲にあるのが好ましく、地合指数は、180~557の範囲にあるのが好ましい。トップシートの坪量は、60gsm未満であることが好ましい。トップシートの坪量が60gsm以上であると、トップシートを介して着色部を視認し難く、着色部が孔であるような視覚効果を発揮し難い。 As shown in FIG. 5, whether the samples other than J and M are good is evaluated. The average absorbance is preferably in the range of 275 to 1694, and the formation index is preferably in the range of 180 to 557. The basis weight of the top sheet is preferably less than 60 gsm. When the basis weight of the top sheet is 60 gsm or more, it is difficult to visually recognize the colored portion through the top sheet, and it is difficult to exhibit a visual effect that the colored portion is a hole.
 さらに、平均吸光度、地合指数及び坪量がいずれも上記範囲にあるサンプルA~D、F~I、KおよびLについて比較すると、ドット55の長さAおよび第1方向Lの間隔G1を夫々1mmに固定した場合(番号1~14)に、幅Bが0.1mm~0.7mmの範囲にあり、第2方向Wの間隔G2が0.75mm~3.5mmの範囲にある場合に、○または△の良好な評価が得られている。 Further, when comparing the samples A to D, F to I, K, and L, in which the average absorbance, the formation index, and the basis weight are all within the above ranges, the length A of the dot 55 and the interval G1 in the first direction L are respectively shown. When fixed to 1 mm (numbers 1 to 14), the width B is in the range of 0.1 mm to 0.7 mm, and the gap G2 in the second direction W is in the range of 0.75 mm to 3.5 mm. Good evaluation of ○ or Δ is obtained.
 そして、ドット55の幅Bを0.35mmとし、第2方向Wの間隔G2を1mmとした場合(番号15~32)に、長さAが0.5mm~1.75mmの範囲にあり、第1方向Lの間隔G1が0.5mm~10mmの範囲にある場合に、○の良好な評価が得られている。 When the width B of the dot 55 is 0.35 mm and the interval G2 in the second direction W is 1 mm (numbers 15 to 32), the length A is in the range of 0.5 mm to 1.75 mm. When the gap G1 in one direction L is in the range of 0.5 mm to 10 mm, a good evaluation of ◯ is obtained.
 図6は、着色部を設ける対象に関する変更例を示す、使い捨ておむつ10’の平面図である。
 以上の説明では、吸収体30を包囲する下部被覆シート35とは別体のシート部材として、吸収体30とトップシート40との間に配置される上部被覆シート50に着色部が設けられていた。
FIG. 6 is a plan view of a disposable diaper 10 ′ showing a modification example regarding an object on which a coloring part is provided.
In the above description, the colored portion is provided in the upper covering sheet 50 disposed between the absorbent body 30 and the top sheet 40 as a separate sheet member from the lower covering sheet 35 surrounding the absorbent body 30. .
 これに限らず、着色部は、上部被覆シート50と下部被覆シート35との双方に設けることとしてもよく、上部被覆シート50には設けず、下部被覆シート35にのみ設けることとしてもよい。前者の例では、上部被覆シート50および下部被覆シート35が「第2肌面シート」を構成し、使用者に対し、吸収体30の肌対向面全体に亘って孔が存在する印象を与えることが可能となる。一方で、後者の例では、下部被覆シート35が「第2肌面シート」を構成し、吸収体30の側縁近傍の領域に孔が偏在する印象を強調することが可能となる。着色部を設ける方法は、いずれの例にあっても印刷を採用することが可能である。 Not limited to this, the colored portion may be provided on both the upper cover sheet 50 and the lower cover sheet 35, or may be provided only on the lower cover sheet 35 without being provided on the upper cover sheet 50. In the former example, the upper covering sheet 50 and the lower covering sheet 35 constitute a “second skin face sheet” and give the user the impression that a hole exists over the entire skin facing surface of the absorbent body 30. Is possible. On the other hand, in the latter example, the lower covering sheet 35 constitutes a “second skin sheet”, and the impression that the holes are unevenly distributed in the region near the side edge of the absorber 30 can be emphasized. As for the method for providing the colored portion, printing can be employed in any example.
 そして、図6に示す例では、吸収体30の全体が1枚の被覆シート35’により包囲され、被覆シート35’のうち、吸収体30の肌対向面に接する部分に着色部が設けられている。この変更例では、被覆シート35’が「第2肌面シート」を構成する。 And in the example shown in FIG. 6, the whole absorber 30 is surrounded by one coating sheet 35 ', and the coloring part is provided in the part which touches the skin opposing surface of the absorber 30 among coating sheet 35'. Yes. In this modification, the covering sheet 35 ′ constitutes a “second skin sheet”.
 さらに、以上の説明では、吸収体30を包囲する上部被覆シート50および下部被覆シート35の少なくとも一方に着色部が設けられていた。これに限らず、着色部は、吸収体30への排泄物の移動速度を高め、ウェットバックを抑制する目的でトップシート40と吸収体30との間に配置される、いわゆるセカンドシートに設けることとしてもよい。この場合は、セカンドシートが「第2肌面シート」を構成する。 Furthermore, in the above description, the colored portion is provided on at least one of the upper covering sheet 50 and the lower covering sheet 35 surrounding the absorber 30. Not only this but a coloring part is provided in what is called a second sheet arrange | positioned between the top sheet 40 and the absorber 30 in order to raise the moving speed of the excrement to the absorber 30, and to suppress a wet back. It is good. In this case, the second sheet constitutes the “second skin sheet”.
 図7は、着色部の構成に関する変更例を概略的に示す模式図である。
 図7(a)に示す例では、上部被覆シート50のうち、第2方向Wに関する中央およびその近傍の中央部と、中央部を挟む両側の部分(以下「側部」という)との間でドット55の密度が異なり、中央部において、第2方向Wにおけるドット551同士の間隔G21が側部における間隔G22よりも狭められている。これにより、排尿位置に近い中央部により多くの孔が存在する印象を強調することが可能となる。
FIG. 7 is a schematic diagram schematically illustrating a modification example regarding the configuration of the coloring portion.
In the example shown in FIG. 7A, between the center in the second direction W and the central portion in the vicinity thereof in the upper covering sheet 50 and the portions on both sides sandwiching the central portion (hereinafter referred to as “side portions”). The density of the dots 55 is different, and in the center, the interval G21 between the dots 551 in the second direction W is narrower than the interval G22 in the side portion. This makes it possible to emphasize the impression that more holes are present in the central part near the urination position.
 これと同様の効果は、ドット55の長さAまたは幅Bを変えることによっても得ることが可能である。 The same effect can be obtained by changing the length A or the width B of the dots 55.
 同図(b)に示す例では、上部被覆シート50の中央部において、ドット551の長さA1が側部における長さA2よりも短縮されている。 In the example shown in FIG. 5B, the length A1 of the dot 551 is shorter than the length A2 of the side portion in the central portion of the upper covering sheet 50.
 同図(c)に示す例では、上部被覆シート50の中央部において、ドット551の幅B1が側部における幅B2よりも拡大されている。 In the example shown in FIG. 5C, the width B1 of the dot 551 is larger than the width B2 at the side in the central portion of the upper covering sheet 50.
 以上の説明では、吸収性物品として使い捨ておむつ10、10’が採用された。吸収性物品は、使い捨ておむつに限らず、母乳パッドまたは生理用ナプキンであってもよい。 In the above description, disposable diapers 10, 10 'have been adopted as absorbent articles. The absorbent article is not limited to a disposable diaper, and may be a breast milk pad or a sanitary napkin.
 図8は、本発明の他の実施形態に係る吸収性物品である母乳パッド100の平面図である。図9は、図8に示す母乳パッド100のB-B線断面図である。図9に示すように、母乳パッド100は、吸収体130を備え、吸収体130は、液吸収性を有する2枚の被覆シート(上部被覆シート151および下部被覆シート152)により被覆されている。本実施形態では、これら2枚の被覆シート151、152が「第2肌面シート」を構成する。 FIG. 8 is a plan view of a breast milk pad 100 which is an absorbent article according to another embodiment of the present invention. FIG. 9 is a cross-sectional view of the breast milk pad 100 shown in FIG. 8 taken along line BB. As shown in FIG. 9, the breast milk pad 100 includes an absorber 130, and the absorber 130 is covered with two covering sheets (an upper covering sheet 151 and a lower covering sheet 152) having liquid absorbency. In the present embodiment, these two cover sheets 151 and 152 constitute a “second skin sheet”.
 上部被覆シート151は、図8の平面視において、吸収体130とほぼ一致する寸法を有し、吸収体130の肌対向面上に配置されている。下部被覆シート152は、吸収体130の非肌対向面である底面および第1方向Lに延びる二つの側縁を被覆し、その両端縁が上部被覆シート151の側縁部に重なるように内側に折り曲げて配置されている。さらに、上部被覆シート151の肌対向面側に、「第1肌面シート」を構成する不織布140が配置されている。この不織布140は、着用者に対する接触面を形成するものである。 The upper cover sheet 151 has a dimension that substantially matches the absorber 130 in the plan view of FIG. 8, and is disposed on the skin facing surface of the absorber 130. The lower covering sheet 152 covers the bottom surface which is the non-skin facing surface of the absorbent body 130 and the two side edges extending in the first direction L, and the both end edges overlap with the side edges of the upper covering sheet 151. It is bent and arranged. Furthermore, the nonwoven fabric 140 which comprises a "1st skin surface sheet" is arrange | positioned at the skin opposing surface side of the upper coating sheet 151. FIG. The nonwoven fabric 140 forms a contact surface for the wearer.
 ここで、上部被覆シート151および下部被覆シート152は、それらの全面に亘って着色部が設けられており、着色部は、いずれの被覆シート151および152においても不織布140の繊維の配向に沿った第1方向Lに長い形状を有するドットからなり、第1方向Lに連なるドット列を構成するように配置されている。 Here, the upper covering sheet 151 and the lower covering sheet 152 are provided with a colored portion over the entire surface thereof, and the colored portion is aligned with the fiber orientation of the nonwoven fabric 140 in any of the covering sheets 151 and 152. It is composed of dots having a long shape in the first direction L, and is arranged so as to constitute a dot row continuous in the first direction L.
 よって、本実施形態では、2枚の被覆シート151および152が重なる部分で上下のドット同士も重なり、これらの重なり合うドットが、上部被覆シート151のみが配置されている部分よりも不織布140を通じてより濃い陰影として現れる。これにより、上部被覆シート151および下部被覆シート152が重なる吸収体130の側縁近傍の領域X(図8)と、上部被覆シート151のみが配置されている中央の領域Zとの間で、使用者が受ける深みの印象に差を付け、吸収体130の側縁近傍の領域Xで吸収性能がより高い印象を強調することが可能となる。 Therefore, in the present embodiment, the upper and lower dots also overlap at the portion where the two covering sheets 151 and 152 overlap, and these overlapping dots are darker through the nonwoven fabric 140 than the portion where only the upper covering sheet 151 is disposed. Appears as a shadow. Thereby, it is used between the area | region X (FIG. 8) near the side edge of the absorber 130 with which the upper coating sheet 151 and the lower coating sheet 152 overlap, and the center area | region Z where only the upper coating sheet 151 is arrange | positioned. It is possible to make a difference in the impression of the depth received by the person and to emphasize the impression of higher absorption performance in the region X near the side edge of the absorber 130.
 さらに、下部被覆シート152に着色部を設ける工程において、下部被覆シート152の側縁部に印刷が施されない余白部を設けることで、図8に示す母乳パッド100において、第2方向Wに関する側縁近傍の領域Xと中央域Zとの間の領域Yにおいて、上部被覆シート151のドットが下部被覆シート152の余白部に重なることで、上部被覆シート151のみが配置されている中央域Zにおけるよりもさらに薄い色のドットを表現することができる。これにより、吸収性能に関して使用者に与える印象を、段階的に調整することが可能となる。 Further, in the step of providing a colored portion on the lower covering sheet 152, a side edge in the second direction W is provided in the breast milk pad 100 shown in FIG. In the area Y between the adjacent area X and the central area Z, the dots of the upper covering sheet 151 overlap with the blank area of the lower covering sheet 152, so that the area in the central area Z where only the upper covering sheet 151 is arranged is smaller. Can express even lighter dots. Thereby, the impression given to the user regarding the absorption performance can be adjusted in stages.
 次いで、変形例1~3に係る吸収性物品について説明する。なお、以下の説明において上述の実施形態と同様の構成については、同符号を用いて説明を省略する。変形例1~3に係る吸収性物品は、実施の形態と着色部の構成が異なっている。また、変形例1に係る吸収性物品は、第2肌面シート全体に亘って着色部の構成が同じである。変形例2及び変形例3に係る吸収性物品は、中央部の着色部の構成と、側部の着色部の構成と、が異なる。変形例1~3に係る吸収性物品に係る第1肌面シートの構成及び第2肌面シートの構成を表1に示す。 Next, absorbent articles according to the first to third modifications will be described. In the following description, the same components as those in the above-described embodiment are denoted by the same reference numerals and the description thereof is omitted. Absorbent articles according to Modifications 1 to 3 are different from the embodiment in the configuration of the colored portion. Moreover, the structure of the coloring part is the same over the 2nd skin sheet as for the absorbent article which concerns on the modification 1. FIG. Absorbent articles according to Modification 2 and Modification 3 are different in the configuration of the colored portion at the center and the configuration of the colored portion at the side. Table 1 shows the configuration of the first skin sheet and the configuration of the second skin sheet according to the absorbent article according to Modifications 1 to 3.
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
 変形例1~3に係る着色部を有する吸収性物品によっても、吸収性物品には実際にない孔が存在するような印象を使用者に与えることができる。 Even with an absorbent article having colored portions according to the first to third modifications, the user can be given an impression that there are holes that are not actually present in the absorbent article.
 上述の実施形態及び変形例によれば、本願発明の着色部は、以下のように構成されていることが好ましい。
 ・着色部の第1方向の長さ(A):0.5mm以上1.85mm以下
 ・着色部の第2方向の長さ(B):0.1mm以上0.7mm以下
 ・第1方向に隣接する着色部同士の間隔(G1):0.5mm以上10mm以下
 ・第2方向に隣接する着色部同士の間隔(G2):0.75mm以上3.5mm以下
 ・AとBの関係:A>B
 ・G2とG1の関係:G2<G1、G2>G1及びG1=G2のいずれか
 ・G2とBの関係:G2>B
 特に、着色部の第1方向の長さ(A):0.5mm以上1.85mm以下であり、かつ着色部の第2方向の長さ(B):0.1mm以上0.7mm以下であることにより、着色部が開口のような印象を与えることができる。また、より好ましくは、第1方向に隣接する着色部同士の間隔(G1):0.5mm以上10mm以下であり、・第2方向に隣接する着色部同士の間隔(G2):0.75mm以上3.5mm以下であることにより、着色部が開口のような印象をより与えることができる。
According to the above-mentioned embodiment and modification, it is preferable that the coloring part of this invention is comprised as follows.
-Length of colored portion in first direction (A): 0.5 mm to 1.85 mm-Length of colored portion in second direction (B): 0.1 mm to 0.7 mm-Adjacent to first direction Interval between colored parts (G1): 0.5 mm or more and 10 mm or less Interval between colored parts adjacent in the second direction (G2): 0.75 mm or more and 3.5 mm or less Relation between A and B: A> B
-Relationship between G2 and G1: Any of G2 <G1, G2> G1 and G1 = G2-Relationship between G2 and B: G2> B
In particular, the length (A) of the colored part in the first direction: 0.5 mm to 1.85 mm, and the length (B) of the colored part in the second direction: 0.1 mm to 0.7 mm. Thus, the colored portion can give an impression like an opening. More preferably, the distance between the colored parts adjacent in the first direction (G1): 0.5 mm or more and 10 mm or less, and the distance between the colored parts adjacent in the second direction (G2): 0.75 mm or more. By being 3.5 mm or less, the colored part can give an impression like an opening more.
 上述の実施形態では、第1方向が長手方向であり、第2方向が幅方向の形態である。しかし、本発明に係る吸収性物品は、第1方向が幅方向であり、第2方向が長手方向である実施形態を含むものである。第1方向が幅方向であり、第2方向が長手方向である実施形態では、第1肌面シートにおける繊維の配向方向は、幅方向である。 In the above-described embodiment, the first direction is the longitudinal direction and the second direction is the width direction. However, the absorbent article according to the present invention includes an embodiment in which the first direction is the width direction and the second direction is the longitudinal direction. In the embodiment in which the first direction is the width direction and the second direction is the longitudinal direction, the fiber orientation direction in the first skin sheet is the width direction.
 上述したように、本発明の実施形態を通じて本発明の内容を開示したが、この開示の一部をなす論述及び図面は、本発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施の形態、実施例及び運用技術が明らかとなる。したがって、本発明の技術的範囲は、上述の説明から妥当な特許請求の範囲に係る発明特定事項によってのみ定められるものである。 As described above, the contents of the present invention have been disclosed through the embodiments of the present invention. However, it should not be understood that the descriptions and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.
 なお、2015年12月25日に出願された日本国特許出願第2015-254246の全内容、2016年8月15日に出願された日本国特許出願第2016-159324の全内容が、参照により、本明細書に組み込まれる。 The entire contents of Japanese Patent Application No. 2015-254246 filed on December 25, 2015, and the entire contents of Japanese Patent Application No. 2016-159324 filed on August 15, 2016, Incorporated herein.
吸収性物品の肌対向面の視覚効果によって、着用者が吸収性物品の吸収性能を把握することができる吸収性物品を提供することができる。 The absorbent article which a wearer can grasp | ascertain the absorption performance of an absorbent article by the visual effect of the skin opposing surface of an absorbent article can be provided.
 10…使い捨ておむつ(吸収性物品)
 20…シャーシ
 30…吸収体
 35…下部被覆シート
 40…トップシート(第1肌面シート)
 40A…高吸光度領域
 40B…低吸光度領域
 50…上部被覆シート(第2肌面シート)
 55…ドット(着色部)
 55A…ドット列
 60…サイドフラップ
 L…第1方向
 W…第2方向
 A…ドットの長さ
 B…ドットの幅
 G1…第1方向におけるドットの間隔
 G2…第2方向におけるドットの間隔
 100…母乳パッド(吸収性物品)
 130…吸収体
 140…不織布(第1肌面シート)
 151…上部被覆シート(第2肌面シート)
 152…下部被覆シート(第2肌面シート)
10. Disposable diapers (absorbent articles)
DESCRIPTION OF SYMBOLS 20 ... Chassis 30 ... Absorber 35 ... Lower coating sheet 40 ... Top sheet (1st skin sheet)
40A: High absorbance region 40B: Low absorbance region 50: Upper covering sheet (second skin sheet)
55 ... dot (colored part)
55A ... dot row 60 ... side flap L ... first direction W ... second direction A ... dot length B ... dot width G1 ... dot spacing in the first direction G2 ... dot spacing in the second direction 100 ... breast milk Pad (absorbent article)
130 ... Absorber 140 ... Non-woven fabric (first skin sheet)
151 ... Upper covering sheet (second skin sheet)
152 ... lower covering sheet (second skin sheet)

Claims (6)

  1.  吸収体と、
     前記吸収体の肌対向面側に配置された、不織布からなる第1肌面シートと、
     前記吸収体と前記第1肌面シートとの間に配置された第2肌面シートと、を備え、
     前記第1肌面シートにおける繊維の配向に沿った第1方向と、前記第1方向と直交する第2方向とを有する吸収性物品であって、
     前記第1肌面シートは、地合指数が180~557の範囲にある領域を有し、
     前記第2肌面シートは、前記第1方向に長い複数のドットからなる着色部を有し、
     前記着色部は、前記第1肌面シートの前記領域を通じて吸収性物品の肌対向面側から視認可能であり、
     前記着色部の前記第1方向の長さは、0.5mm以上1.85mm以下であり、
     前記着色部の前記第2方向の長さは、0.1mm以上0.7mm以下であり、
     前記第1方向に隣接する前記着色部同士の間隔は、0.5mm以上10mm以下であり、
     前記第2方向に隣接する前記着色部同士の間隔は、0.75mm以上3.5mm以下である、吸収性物品。
    An absorber,
    A first skin sheet made of a nonwoven fabric, disposed on the skin-facing surface side of the absorbent body,
    A second skin sheet disposed between the absorbent body and the first skin sheet;
    An absorbent article having a first direction along the fiber orientation in the first skin sheet and a second direction orthogonal to the first direction,
    The first skin sheet has a region where the formation index is in a range of 180 to 557,
    The second skin sheet has a colored portion composed of a plurality of dots long in the first direction,
    The colored portion is visible from the skin facing surface side of the absorbent article through the region of the first skin sheet,
    The length of the colored portion in the first direction is 0.5 mm or more and 1.85 mm or less,
    The length of the colored portion in the second direction is 0.1 mm or more and 0.7 mm or less,
    An interval between the colored portions adjacent to each other in the first direction is 0.5 mm or more and 10 mm or less,
    The absorbent article, wherein an interval between the colored portions adjacent to each other in the second direction is not less than 0.75 mm and not more than 3.5 mm.
  2.  前記第1肌面シートの前記領域は、平均吸光度が275~1694の範囲にある、請求項1に記載の吸収性物品。 The absorbent article according to claim 1, wherein the region of the first skin sheet has an average absorbance in the range of 275 to 1694.
  3.  前記着色部は、前記ドットが前記第1方向に並んだ複数のドット列を含み、
     前記ドット列は、前記第2方向に互いに隔てて配置されていることを特徴とする、請求項1又は請求項2に記載の吸収性物品。
    The colored portion includes a plurality of dot rows in which the dots are arranged in the first direction,
    The absorbent article according to claim 1 or 2, wherein the dot rows are arranged apart from each other in the second direction.
  4.  前記着色部は、複数のドット列の間で、前記第2方向に隣り合うドットが前記第1方向に互いにずれて配置されていることを特徴とする、請求項3に記載の吸収性物品。 The absorbent article according to claim 3, wherein in the coloring portion, dots adjacent in the second direction are arranged so as to be shifted from each other in the first direction between a plurality of dot rows.
  5.  前記着色部は、前記ドットの前記第2方向に沿った寸法が隣り合う前記ドット列の間隔よりも小さいことを特徴とする、請求項1から請求項4のいずれかに記載の吸収性物品。 The absorbent article according to any one of claims 1 to 4, wherein the colored portion has a dimension along the second direction of the dots smaller than an interval between the adjacent dot rows.
  6.  前記着色部は、前記第1方向における前記ドットの寸法をAとし、前記第2方向における前記ドットの寸法をBとしたときに、比A/Bが1~18.5の範囲にあることを特徴とする、請求項1から請求項5のいずれかに記載の吸収性物品。 The colored portion has a ratio A / B in the range of 1 to 18.5, where A is the size of the dots in the first direction and B is the size of the dots in the second direction. The absorbent article according to any one of claims 1 to 5, wherein the absorbent article is characterized.
PCT/JP2016/087652 2015-12-25 2016-12-16 Absorbent article WO2017110696A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3172505U (en) * 2005-10-26 2011-12-22 ザ プロクター アンド ギャンブル カンパニー Hygiene articles with inks that increase the hydrophobicity of certain areas
JP2012210503A (en) * 2012-08-07 2012-11-01 Daio Paper Corp Absorbent article
JP2013208320A (en) * 2012-03-30 2013-10-10 Unicharm Corp Absorbent article

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3172505U (en) * 2005-10-26 2011-12-22 ザ プロクター アンド ギャンブル カンパニー Hygiene articles with inks that increase the hydrophobicity of certain areas
JP2013208320A (en) * 2012-03-30 2013-10-10 Unicharm Corp Absorbent article
JP2012210503A (en) * 2012-08-07 2012-11-01 Daio Paper Corp Absorbent article

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