WO2018087850A1 - 吸収性物品 - Google Patents
吸収性物品 Download PDFInfo
- Publication number
- WO2018087850A1 WO2018087850A1 PCT/JP2016/083270 JP2016083270W WO2018087850A1 WO 2018087850 A1 WO2018087850 A1 WO 2018087850A1 JP 2016083270 W JP2016083270 W JP 2016083270W WO 2018087850 A1 WO2018087850 A1 WO 2018087850A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- illusion
- absorbent article
- longitudinal direction
- sheet
- rear portion
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent 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
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
- A61F13/51394—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability creating a visual effect, e.g. having a printed or coloured topsheet, printed or coloured sub-layer but being visible from the topsheet, other than embossing for purposes of bonding, wicking, acquisition, leakage-prevention
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent 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 shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/45—Absorbent 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 shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/472—Sanitary towels, incontinence pads or napkins specially adapted for female use
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent 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
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent 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
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
- A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
- A61F13/51108—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections the top sheet having corrugations or embossments having one axis relatively longer than the other axis, e.g. forming channels or grooves in a longitudinal direction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent 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
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent 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
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
- A61F13/51496—Backsheet, i.e. the impermeable cover or layer furthest from the skin having visual effects
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/51—Absorbent 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
- A61F13/515—Absorbent 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 characterised by the interconnection of the topsheet and the backsheet
Definitions
- the present invention relates to an absorbent article.
- Absorbent articles such as sanitary napkins and incontinence pads are known. Absorbent articles are used while being attached to underwear. However, if not properly worn, excretion fluid or the like is not sufficiently absorbed by the absorbent article, and there is a risk of problems such as leakage to the outside. In order to appropriately attach the absorbent article, for example, a method of attaching a label for attachment to the absorbent article is conceivable.
- Patent document 1 is mentioned as a method of providing a label
- the absorbent article of Patent Document 1 is a feminine hygiene article having a body-facing surface, a first end region and a second end region, the crotch portion being bounded on both sides by a curved leg opening portion Installed in underwear.
- the feminine hygiene article includes at least one enhancement marker that is visible from a body facing surface.
- the enhanced sign corresponds to at least one enhanced portion of the feminine hygiene article.
- the function-enhanced sign allows the user to know the part of the article whose function has been enhanced, and the article can be appropriately placed in the underwear.
- the function enhancement sign is a sign or signal that can be perceived by the user, specifically a line, a line segment, a curve, a band, an arrow, a word, a picture, a mark, a dot, a spot, a shadow, a striped pattern,
- An object of the present invention is to provide an absorbent article that can appropriately understand the function imparted to the absorbent article and can be appropriately attached to the absorbent article.
- the manufacturing method of the absorber of the present invention is as follows. (1) Absorbent article composed of a plurality of materials, the part having the function or the part having the function so that the user can visually recognize the function of at least one of the plurality of materials.
- the absorbent article which has the illusion part by which the illusion figure was drawn in the part corresponding to.
- an illusion figure is drawn so that the user can visually recognize the function of at least one of the plurality of materials. Therefore, the user can easily recall and understand that the illusion part or the part corresponding to the illusion part has the function even if there is no explanation just by looking at the illusion figure. Thereby, based on the function, an absorbent article can be appropriately handled and appropriately mounted without trial and error.
- the absorbent article of the present invention is (2) the absorbent article has a longitudinal direction, a width direction, and a thickness direction, and is located at the rear of the longitudinal direction and has a rear portion extending in the longitudinal direction.
- a portion corresponding to the rear portion in at least one of the plurality of materials includes the illusion portion, and the illusion figure is visible to a user with a function that the rear portion extends in the longitudinal direction.
- the present absorbent article includes a rear portion that extends in the longitudinal direction, that is, has a function that the rear portion extends in the longitudinal direction. This function is intended to enhance the wearability of the absorbent article by making the movement of the legs of the wearer and the rear portion interlock and easy to move.
- the absorbent article when the absorbent article is attached to the underwear, if the rear portion is carelessly pulled backward, the rear portion will be extended, and the absorbent article may be attached to the underwear in an extended state than expected. There is a possibility that the absorbent article may be worn out of the underwear. If it becomes so, an absorbent article will shift
- the illusion figure includes an illusion figure that is visible so that the rear portion extends in the longitudinal direction. Therefore, the user can intuitively recognize that the rear portion has a function of extending. Thereby, based on the function, it is possible to attach the absorbent article while appropriately handling the absorbent article while handling the rear part without extending the rear part without trial and error.
- the absorptive article of the present invention is (3) the absorptivity according to (2) above, wherein the illusion figure includes a Fraser-Wilcox illusion figure that is visible so that the rear portion extends in the longitudinal direction. It may be an article.
- the rear part of the absorbent article is moved in the longitudinal direction by using the Fraser-Wilcox illusion figure, that is, a figure in which colors having different luminance are repeatedly arranged along the longitudinal direction as the illusion figure. That is, it seems to expand and contract. Therefore, the user can easily recall the extending function and can easily grasp the rear portion having the function.
- the absorbent article without appropriately extending the rear portion without trial and error, that is, to appropriately attach the absorbent article.
- the user is expected to be a high-quality absorbent article that is particularly excellent in stretchability (that is, excellent in wearing feeling). Can be nurtured.
- the illusion figure includes an inclination illusion figure of a geometric illusion that is visible so that the rear portion extends in the longitudinal direction. Absorptive article as described in a).
- a geometrical illusion tilt illusion figure that is, a figure arranged by combining figures with different inclinations along the longitudinal direction is used as the illusion figure, so that the rear part of the absorbent article is in the longitudinal direction. It appears to move, that is, to expand and contract. Therefore, the user can easily recall the extending function and can easily grasp the rear portion having the function.
- the illusion figure includes a figure formed by perspective in which the rear portion is visible so as to extend in the longitudinal direction.
- the absorbent article as described in any one of these may be sufficient.
- a figure formed by perspective that creates the illusion that a two-dimensional figure looks like a three-dimensional figure is used as an illusion figure. It appears that the rear part of the product is elongated. Therefore, the user can easily recall the extending function and can easily grasp the rear portion having the function.
- the illusion figure includes a plurality of patterns along the longitudinal direction in which at least one pattern element is arranged in the width direction, and the plurality of patterns May be the absorbent article according to any one of (2) to (5), which is gradually deformed along the longitudinal direction.
- a plurality of patterns each including at least one type of pattern elements arranged in the width direction are provided along the longitudinal direction, and the plurality of patterns are gradually increased along the longitudinal direction.
- the absorbent article of the present invention is (7) the absorbent article according to (6), wherein the size of the plurality of patterns gradually increases or decreases along the longitudinal direction. Good.
- the rear part of the absorbent article is expanded and contracted by using a figure formed such that the size of a plurality of patterns gradually increases or decreases along the longitudinal direction as an illusion figure. Looks like. Therefore, the user can easily recall the extending function and can easily grasp the rear portion having the function.
- the dimension in the width direction or the longitudinal direction of the plurality of patterns is gradually increased or decreased along the longitudinal direction, (6) or (7)
- the back of the absorbent article can be obtained by using, as an illusion figure, a figure formed such that the dimension in the width direction or the longitudinal direction of a plurality of patterns gradually increases or decreases along the longitudinal direction. The part appears to stretch. Therefore, the user can easily recall the extending function and can easily grasp the rear portion having the function.
- the rear part of the absorbent article is formed by using a figure formed such that the longitudinal dimension interval between a plurality of patterns gradually widens or narrows along the longitudinal direction as an illusion figure. Appears to stretch. Therefore, the user can easily recall the extending function and can easily grasp the rear portion having the function.
- the absorbent article of the present invention is (10) any one of the above (6) to (9), wherein the plurality of patterns are arranged in a wave shape or a spring shape along the longitudinal direction and / or the width direction.
- the absorbent article according to one item may be used.
- the rear part of the absorbent article appears to be elongated by using a figure in which a plurality of patterns are arranged in a wave shape or a spring shape along the longitudinal direction and / or the width direction as an illusion figure. Therefore, the user can easily recall the extending function and can easily grasp the rear portion having the function.
- the plurality of materials are a top sheet, a back sheet, an absorber positioned between the top sheet and the back sheet, and between the top sheet and the previous absorbent body.
- the absorbent article described in the item may be used.
- the illusion figure is drawn on the surface of the auxiliary sheet on the absorber side, so the user should confirm the illusion figure from the top sheet side, that is, from the skin side that is easy to see when wearing the absorbent article. Can do.
- an illusion figure can generally be drawn on an auxiliary sheet having a fiber density higher than that of the surface sheet, the illusion figure can be drawn more clearly and can be easily recognized by the user.
- the plurality of materials include a top sheet, a back sheet, and an absorbent body positioned between the top sheet and the back sheet, and the illusion part is formed on the top sheet.
- the illusion figure is drawn on the skin side surface of the top sheet, so the user can confirm the illusion figure directly from the top sheet side, that is, from the skin side that is easy to see when wearing the absorbent article. it can. Therefore, the user can more easily recall the function of expanding and contracting, and can more easily grasp the rear portion having the function.
- the plurality of materials includes a top sheet, a back sheet, and an absorber positioned between the top sheet and the back sheet, and the illusion part is formed on the back sheet.
- the user since the illusion figure is drawn on the non-skin side surface of the back sheet, the user can confirm the illusion figure directly from the back sheet side. Therefore, the user can easily recall the function of expanding and contracting, and can easily grasp the rear portion having the function even in a state where the back sheet in the packaged state faces the front side.
- the absorbency which can understand appropriately the function which the part which attached
- the absorbent article and the absorbent body according to the present embodiment will be described with reference to the drawings, taking a sanitary napkin as an example.
- the type and use of the absorbent article are not particularly limited, and examples include panty liners and light incontinence pads.
- the liquid to be absorbed by the absorbent article is not particularly limited, and examples thereof include user's liquid excrement and body fluid.
- FIG.1 and FIG.2 is a figure which shows the absorbent article 2, The top view and the exploded perspective view in the state which expand
- the absorbent article 2 has a longitudinal direction L, a width direction W, and a thickness direction T perpendicular to each other, a main body 2a extending in the longitudinal direction L, and extending on both sides of the width direction W at a substantially central portion in the longitudinal direction L. A pair of flap portions 2b and 2b are provided.
- the absorbent article 2 has a longitudinal center line CL extending in the longitudinal direction L through the center in the width direction W, and a width direction center line CW extending in the width direction W through the center in the longitudinal direction L of the pair of flap portions 2b, 2b.
- the upper side is the front of the absorbent article 2 and the lower side is the rear of the absorbent article 2. Since the longitudinal direction L, the width direction W, and the thickness direction T of the absorbent article 2 coincide with the longitudinal direction, the width direction, and the thickness direction of each material of the absorbent article 2 described later, the absorbent article 2 and its The longitudinal direction L, the width direction W, and the thickness direction T are used in common for each material.
- the “plan view” means that the absorbent article 2 in a developed state is viewed in the thickness direction T from the upper surface side.
- the “skin side” and “non-skin side” refer to a side closer to and far from the user's skin surface in the thickness direction T when the absorbent article 2 is worn by the user of the absorbent article 2.
- a direction toward the longitudinal center line CL and a direction away from the longitudinal center line CL are defined as an inner direction and an outer direction in the width direction W, respectively.
- a direction toward the center line CW in the width direction and a direction away from the center line CW are defined as the inner and outer directions of the longitudinal direction L, respectively.
- the main body 2a has a rounded rectangular shape, a vertically long oval shape, or an oval shape, and the outer edges 2T1 and 2T2 at both end edges in the longitudinal direction L of the main body portion 2a have a substantially semicircular or bowl shape.
- the main body 2a includes a liquid-permeable top sheet 4, a liquid-impermeable back sheet 5, and a liquid-absorbing and liquid-holding absorber 3 disposed between the top sheet 4 and the back sheet 5. And comprising.
- the non-skin side surface of the top sheet 4 and the skin side surface of the absorber 3 are joined with an adhesive or the like, and the non-skin side surface of the absorber 3 and the skin side surface of the back sheet 5 are adhesive or the like. Are joined together.
- the edge of the non-skin side surface of the top sheet 4 and the edge of the skin side surface of the back sheet 5 are joined with an adhesive.
- the region where the topsheet 4 and the absorbent body 3 of the main body 2a overlap in the thickness direction T the region that comes in contact with the excretion port at the time of wearing, in the center in the longitudinal direction L and slightly in the front in the width direction W
- a mouth contact area STA is set.
- the flap portion 2b has a semicircular or semi-elliptical shape, and in the longitudinal direction L, the positions of both ends (roots) and the center of the pair of flap portions 2b, 2b are both ends of the excretory opening contact area STA. And it is formed so as to substantially overlap the position of the central portion.
- the main body 2a is formed with a pressing portion 26 formed by pressing the top sheet 4 and the absorbent body 3 from the top sheet 4 side in and around the excretory opening contact area STA (absorbed in FIG. 2).
- the description of the pressing part 26 of the body 3 is omitted).
- a dot-shaped central pressing part 26a is formed on the excretion opening contact area STA, and groove-shaped side pressing parts 26b and 26b are formed on both sides in the width direction W of the excretion opening contact area STA.
- a groove-shaped front pressing part 26c and a rear pressing part 26d are formed in front and rear of the excretion opening contact area STA, respectively.
- the main body portion 2a and the pair of flap portions 2b, 2b of the absorbent article 2 include a plurality of fixing portions (not shown) for fixing the absorbent article 2 to clothes on the skin surface side of the back sheet 5.
- the fixing part is covered with a release sheet.
- the absorbent article 2 of the present embodiment is composed of a plurality of materials as described above, that is, the top sheet 4, the absorber 3 and the back sheet 5, and further, a leak-proof wall (not shown) for preventing excretion fluid leakage. Or an auxiliary sheet (not shown) for excretory fluid diffusion, a known material may be included in the absorbent article 2.
- At least one of the plurality of materials has some function, and an illusion figure is drawn on a part having the function or a part corresponding to the part having the function. It has an optical illusion.
- optical illusion is an illusion about vision, and in a form consisting of faces, lines, points, and a set of them, a phenomenon in which the size, length, direction, etc. appear different from those objectively.
- An illusion figure is a figure that causes an illusion.
- a fraudulent picture (Trompe-l'oeil) is included. In this way, the absorbent article 2 has an illusion figure, so that the user can easily recall that the absorbent article 2 has its function just by looking at the illusion figure even without any explanation. Understandable.
- the user can visually recognize the contents of the function by the illusion generated by the illusion graphic, and can visually recognize the position of the portion having the function by the position where the illusion graphic is drawn.
- the absorbent article 2 can be handled properly without trial and error, and can be appropriately worn.
- visual recognition of a function using an illusion figure means that a person visually grasps the illusion figure and grasps the captured illusion figure so that its size, length, direction, movement, etc. are different from those objectively. This means that the function that produces the grasped content is recognized as if it exists.
- an illusion figure that appears to move in the longitudinal direction L is drawn on a predetermined portion of the absorbent article, the person visually grasps the illusion figure and grasps that the captured illusion figure moves in the longitudinal direction L. This means that the function of moving in the longitudinal direction L is recognized as existing in the predetermined portion.
- Illusions include, for example, motion illusions in which a stationary object appears to move (example: Fraser-Wilcox illusion, Ouchi illusion), geometric illusions related to shape, size, and inclination (example: tilt illusion (Y-junction) Illusions)), illusions in which nothing is visible (visual complement), illusions in which objects appear to have depth (stereoscopic / space vision (perspective), crater illusion), and the like.
- motion illusions in which a stationary object appears to move example: Fraser-Wilcox illusion, Ouchi illusion
- geometric illusions related to shape, size, and inclination example: tilt illusion (Y-junction) Illusions
- illusions in which nothing is visible visual complement
- illusions in which objects appear to have depth stereographic / space vision (perspective), crater illusion
- the absorbent article 2 of the present embodiment is provided with a function called extensibility. That is, the absorbent article 2 has extensibility in the rear portion 30 in the longitudinal direction L. In other words, the absorbent article 2 has higher extensibility in the longitudinal direction L than extensibility in the width direction W.
- “extensibility” refers to the property that when a tensile force is applied to an object, the shape of the object extends in that direction. In this case, when the tensile force disappears, the shape of the object may return to the original shape, or may approach the original shape but may not return to the original shape.
- the absorbent article 2 may be provided with a function of elasticity in the rear portion 30 in the longitudinal direction L, that is, may have elasticity in the longitudinal direction L.
- “Stretchability” refers to the property that when a tensile force is applied to an object, the shape of the object extends in that direction, and when the tensile force disappears, the shape of the object returns to its original shape. It can also be said to be “elastic”.
- the phrase “having” “extensibility” or “stretchability” means that a product has a tensile elongation (breaking elongation) of at least 3% as the degree of elongation of the product.
- the elongation of the product has a tensile elongation (breaking elongation) of 0% or It is less than 3%.
- the measuring method of the tensile elongation (breaking elongation) is measured by the tensile elongation test of the fiber sheet described later.
- the top sheet 4 has a front portion 4a and a rear portion 4b with the width direction center line CW as a boundary.
- the rear portion 4b has extensibility in the longitudinal direction L
- the front portion 4a has almost no extensibility in the longitudinal direction L.
- the topsheet 4 has a function of extensibility in the longitudinal direction L at the rear portion 4b.
- the rear portion 4b may have stretchability or elasticity in addition to extensibility.
- As a method for imparting extensibility for example, gear stretching treatment can be mentioned. In that case, stretchability can also be imparted.
- the surface sheet 4 has a stretching property in the back part 4b.
- the back sheet 5 has a front part 5a and a rear part 5b with the width direction center line CW as a boundary.
- the rear portion 5b has extensibility in the longitudinal direction L
- the front portion 5a has almost no extensibility in the longitudinal direction L. Therefore, the back sheet 5 has a function of extensibility in the longitudinal direction L at the rear portion 5b.
- the rear portion 5b may have stretchability or elasticity in addition to extensibility.
- As a method for imparting extensibility for example, gear stretching treatment can be mentioned. In that case, stretchability can also be imparted.
- the back surface sheet 5 has a stretching property in the back part 5b.
- the absorber 3 includes an absorber body 3m, and further includes a carrier sheet 3n bonded to a surface of the absorber body 3m on the back sheet 5 side.
- the absorber main body 3m has a front part 3ma and a rear part 3mb with the center line CW in the width direction as a boundary.
- the rear part 3mb has extensibility in the longitudinal direction L
- the front part 3ma has almost no extensibility in the longitudinal direction L. Therefore, the absorber main body 3m has a function of extensibility in the longitudinal direction L at the rear portion 3mb.
- Examples of a method for imparting extensibility include a method of forming a plurality of cuts 3S in the rear portion 3mb of the absorber main body 3m.
- Examples of the plurality of cuts 3 ⁇ / b> S include a plurality of cuts that extend along the substantially width direction W and are arranged at intervals in the substantially longitudinal direction L. Thereby, when tension
- FIG. Examples of the shape of the cut 3S include a straight line shape (this embodiment) and a wavy line shape.
- the cut 3S As the arrangement of the cuts 3S, a method of arranging the individual cuts 3S in the rear portion 3mb in a staggered pattern, or arranging the individual cuts 3S in a virtual rhombus-shaped small region in a staggered pattern. And the method (this Embodiment) etc. etc. which arrange
- the auxiliary sheet (not shown) that assists the diffusion of the liquid is further provided between the top sheet 4 and the absorber 3, the auxiliary sheet has the same outer shape and cut as the absorber main body 3m, The slit can be extended in the longitudinal direction L.
- the carrier sheet 3n has a front portion 3na and a rear portion 3nb with the width direction center line CW as a boundary.
- the rear portion 3nb has extensibility in the longitudinal direction L
- the front portion 3ma has almost no extensibility in the longitudinal direction L. Therefore, the carrier sheet 3n has a function of extensibility in the longitudinal direction L at the rear portion 3nb.
- the rear portion 3nb may have stretchability in addition to stretchability. Examples of a method of imparting extensibility include a method of using an extensible sheet having extensibility in a predetermined direction for the rear portion 3nb, and when using a sheet having extensibility in a predetermined direction, stretchability can also be imparted.
- the front portion 3na and the rear portion 3nb may be a front portion and a rear portion of the same sheet, or may be formed of two types of sheets having different extensibility (or stretchability).
- stretchability is imparted to the front portion 3na using a non-extensible sheet, and the rear portion 30nb using a stretchable sheet having stretchability.
- the absorbent body 3 can exhibit extensibility in the rear portion (3 mb + 3 nb; excluding the excretory opening contact area STA) by overlapping the absorbent body portion 3m and the carrier sheet 3n.
- the absorbent body 3 can exhibit stretchability because the carrier sheet 3n has stretchability.
- the rear portion 3mb of the absorbent body main body 3m exhibits extensibility only by the plurality of cuts 3S, but the contractibility is not always sufficient, and therefore the stretchability is not sufficient. Therefore, in the present embodiment, stretchability is imparted to the absorbent body 3 by sticking the stretchable carrier sheet 3n to the absorbent body main body 3m.
- the carrier sheet 3n also has a function of preventing a situation where the plurality of cuts 3S are partially cut and the absorber body portion 3m loses its shape when the absorber body portion 3m extends.
- the absorbent body 3m As the material for the top sheet 4, the absorbent body 3m, the carrier sheet 3n, the back sheet 5, the fixing part, and the release sheet, known materials generally used in the absorbent article 2 can be used.
- a material of the surface sheet 4 As a material of the surface sheet 4, a non-woven fabric, a woven fabric, a synthetic resin film in which liquid permeation holes are formed, and a composite sheet thereof can be cited.
- the nonwoven fabric include natural fibers, regenerated fibers, inorganic fibers, and synthetic resin fibers.
- the material for the absorber body 3m include pulp fibers, synthetic fibers, and absorbent polymers.
- the material for the auxiliary sheet include nonwoven fabric, pulp fiber, and synthetic fiber.
- Examples of the carrier sheet 3n include a synthetic resin film having elasticity in a uniaxial direction. In particular, a synthetic resin film having elasticity in one axis direction but not having elasticity in the other axis direction orthogonal to the one axis direction is preferable.
- Examples of the material for the back sheet 5 include a waterproof nonwoven fabric, a synthetic resin film, a composite sheet of a nonwoven fabric and a synthetic resin film, and an SMS nonwoven fabric.
- an adhesive such as a styrene-butadiene copolymer can be used.
- Examples of the release sheet material include a paper or resin sheet base material coated with a silicone resin release material.
- the adhesive used for joining between the top sheet 4, the (auxiliary sheet) absorber main body 3 m, the carrier sheet 3 n and the back sheet 5 is a known material generally used in the absorbent article 2.
- a thermoplastic adhesive can be used.
- a material of a packaging sheet the well-known material generally used in order to package the absorbent article 2 can be used.
- a resin film, paper, and a nonwoven fabric are mentioned.
- the top sheet 4 having extensibility in the rear part 4b (excluding the excretory opening contact area STA) and the rear part 5b have extensibility.
- the back sheet 5 and the absorbent body 3 having elasticity are overlapped in the thickness direction T in the rear part (3 mb + 3 nb; excluding the excretory opening contact area STA).
- the absorbent article 2 has extensibility (stretchability in the present embodiment) in the rear portion 30.
- the absorbent article 2 does not have extensibility in the front part (excluding the width direction center line CW) and the excretion opening contact area STA, and excludes the excretion opening contact area STA (width direction center line CW).
- the stretchability is substantially changed between the front part and the rear part 30. Therefore, when the absorbent article 2 is fixed to the underwear by the fixing part, while maintaining the state where the front part of the absorbent article 2 and the excretion opening contact area STA are in contact with the body of the underwear wearer, The rear portion 30 except the contact area STA can be extended with the movement of the body. Specifically, when the underwear wearer walks, the load applied to the absorbent article 2 with the movement of both feet is released by the rear portion 30 excluding the excretory opening contact area STA extending and deforming, Can be absorbed.
- the excretion opening contact area STA and the front part do not extend, the excretion opening contact area STA can stably adhere to the body of the underwear wearer, and the excretion opening contact area STA is stable to the excretion opening (vagina opening). It can adhere.
- the reason is that deformation such as kinking of the rear portion 30 is hardly transmitted to the front portion because the front portion and the excretion opening contact area STA do not have extensibility.
- the front part is naturally less affected by the movement of both feet, so it is easy to stably adhere to the body. Therefore, by ensuring a wide part that does not have stretchability in such a front part, This is because the ability to prevent transmission of deformation from the portion 30 can be increased.
- the front part and the rear part 30 can behave differently according to the movement of the wearer of the underwear, thereby making it possible to achieve both absorbency and wearability.
- the above-described mechanism is similarly effective when each member is not stretchable but stretchable.
- the absorbent article 2 has a function of extensibility in the longitudinal direction L (stretchability in the present embodiment) at the portion 30 behind the width direction center line CW in the absorbent article 2. Is granted.
- the illusion part 40 is formed in the rear part 30 of the absorbent article 2 to which the function of extensibility is given in order to make the function easy to visually recognize.
- 3 and 4 are diagrams illustrating an example of the illusion unit 40 in the absorbent article 2.
- an illusion having an illusion figure 41 in a portion where elongation is more remarkable that is, a rear portion 31 in the longitudinal direction L than the excretory opening contact area STA.
- Part 40 is formed.
- the illusion unit 40 is provided on the surface sheet 4 in the rear portion 31 of the absorbent article 2, and the illusion pattern 41 is drawn on the skin side surface of the surface sheet 4 so as to be visible to the wearer. .
- the illusion part 40 (illusionary figure 41) is visible to the wearer, the non-skin side surface of the top sheet 4, the skin side surface of the absorber 3, and the non-skin side surface of the back sheet 5 It may be drawn on either of these.
- the illusion unit 40 (the illusion pattern 41) may be drawn on the skin side or non-skin side surface of the auxiliary sheet when the auxiliary sheet is disposed between the top sheet 4 and the absorber 3. Good.
- 3 and 4 is an illusion figure of Fraser-Wilcox.
- the Fraser-Wilcox illusion is an illusion that a figure with a luminance gradient from dark to light (continuous or discontinuous) is drawn repeatedly along the luminance gradient, and the figure appears to move in the direction of the gradient. It is a kind of motion illusion that a stationary object appears to move.
- an illusion figure 41 is drawn in which patterns having discontinuous luminance gradients (for example, four stages) along the longitudinal direction L are arranged so as to repeat along the longitudinal direction L. Therefore, the illusion figure 41, that is, the rear portion 31, appears to move in the longitudinal direction L, and thus appears to expand and contract substantially in the longitudinal direction L.
- FIG. 1 In the example of FIG.
- the visible illusion figure 41 is arranged in the rear part 31 (of the illusion part 40) so that the rear part 31 expands and contracts in the longitudinal direction L. Therefore, the user can intuitively recognize that the rear portion 31 has a function of extending by looking at the rear portion 31. Thereby, based on the function, the user can wear the absorbent article 2 while appropriately handling the absorbent article 2 while handling the rear portion 31 so as not to extend without trial and error. It becomes possible. As described above, according to the present invention, it is possible to appropriately understand the function of the part to which the graphic is attached only by looking at the graphic drawn on the absorbent article 2, and to appropriately attach the absorbent article 2. Can be provided.
- the rotary drum of the fiber stacking apparatus is rotated, and the fiber stacking material supplied from the material supplier is deposited in a groove communicating with the negative pressure chamber in the pattern plate installed on the outer peripheral surface of the rotary drum.
- the piled-up body which has the shape which the some absorber main-body part 3m connected in the groove
- a stacked fiber body having a substantially uniform basis weight on the entire surface or a stacked fiber body partially having a region with a large basis weight is formed depending on the shape of the groove of the pattern plate.
- the fiber stack in the formed groove reaches the positive pressure chamber together with the pattern plate, the fiber stack is separated from the pattern plate and transported in the transport direction as an absorber continuous body.
- a plurality of cuts are formed in a region corresponding to the portion 3 mb behind the absorber main body 3 m in the absorber continuum by being sandwiched between the anvil roll and the cut roll while the absorber continuum is being conveyed in the conveying direction. 3S is formed.
- the absorber continuous body having a plurality of cuts 3S is attached to a continuous carrier sheet in which the carrier sheet 3n is continuous in the transport direction.
- the absorbent body continuous body with the continuous carrier sheet is sandwiched between the anvil roll and the cut roll while being transported in the transport direction, thereby forming the absorbent body 3m with the individual carrier sheet 3n, that is, the absorbent body 3.
- the individual absorbent bodies 3 are placed on the continuous surface sheet at a predetermined interval. Are joined.
- the pressing part 26 is formed by being sandwiched between the anvil roll and the embossing roll (embossing) while the absorbent body with the continuous surface sheet is conveyed in the conveying direction.
- the continuous back sheet in which the back sheet 5 is continuous in the transport direction is joined to the absorbent body with the continuous top sheet while being transported in the transport direction, and then cut into the shape of the absorbent article 2.
- the illusion part 40 is formed by printing the illusion figure 41 with an inkjet printer on the surface of the back part 4b of the surface sheet 4 of the absorbent article 2.
- the absorbent article 2 is formed as described above.
- the method of drawing the illusion figure 41 is not limited to the above-described ink jet printing technique, and may be drawn using another known printing technique (example: screen printing technique).
- the illusion figure 41 is drawn on the skin side surface of the topsheet 4, the user can easily see from the topsheet 4 side, that is, when wearing the absorbent article 2.
- the illusion figure 41 can be confirmed directly from the skin side. Therefore, the user can recall the function of the absorbent article 2 to expand and contract more easily, and can more easily grasp the rear part having the function.
- the illusion unit 40 may be provided on the auxiliary sheet.
- the illusion figure 41 is drawn by printing with an inkjet printer on the surface of the auxiliary sheet on the absorber 3 side.
- the user can confirm the illusion figure 41 from the surface sheet 4 side, that is, from the skin side that is easy to see when the absorbent article 2 is worn. Therefore, the user can easily recall the function of expanding and contracting, and can easily grasp the rear part having the function.
- the illusion figure 41 can be drawn on the auxiliary sheet having a fiber density higher than that of the surface sheet 4 in general, the illusion figure 41 can be drawn more clearly and can be easily recognized by the user.
- the illusion unit 40 may be provided on the back sheet 5.
- the illusion figure 41 is drawn by printing on the non-skin side surface of the back sheet 5 with an ink jet printer. Thereby, the user can confirm the illusion figure 41 directly from the back sheet 5 side. Therefore, even in a state where the back sheet 5 in the packaged state faces the front side, the user can easily recall the function of expanding and contracting, and can easily grasp the rear part having the function. .
- FIG. 5 is a diagram illustrating another example of the illusion unit 40 in the absorbent article 2.
- the illusion figure 41a in FIG. 5 is a figure to which the Y illusion of the geometrical illusion tilt illusion is applied.
- Geometric illusion is that the properties of a plane figure such as the size (length, width), direction, angle, and shape of an object look different from the actual one due to the relationship between surrounding lines and shapes. It is an illusion.
- the illusion of the Y-junction (the illusion of the wave) means that if you place white and black stars alternately on the corners of the checkered pattern in dark and light colors and turn the pattern over in some areas, the area and background Is an illusion that appears to separate and move separately.
- the region on the right side in the width direction W with respect to the center line CL in the longitudinal direction appears to wave and move, and substantially appears to expand and contract in that direction.
- the region on the left side in the width direction W with respect to the longitudinal center line CL appears to wave and move, and substantially appears to expand and contract in that direction. Therefore, when both are put together, the rear portion 31 as a whole appears to expand and contract substantially in the longitudinal direction L.
- the illusion figure 41a that can be visually recognized is arranged in the rear part 31 (of the illusion part 40) so that the rear part 31 extends in the longitudinal direction L. Therefore, the user can intuitively recognize that the rear portion 31 has a function of extending by looking at the rear portion 31. Thereby, based on the function, the user can appropriately wear the absorbent article 2 while handling the rear portion 31 so as not to extend without trial and error.
- FIG. 6 is a diagram illustrating still another example of the illusion unit 40 in the absorbent article 2.
- the illusion figure 41b in FIG. 6 is a figure to which the perspective method, which is an illusion that the object appears to have depth, is applied.
- Perspective is a method of depicting natural objects on the screen with a sense of distance similar to that seen by the eye, that is, a method of expressing a three-dimensional shape with a two-dimensional drawing, and thus a two-dimensional figure. Is an illusion that looks like a three-dimensional shape.
- the illusion figure 41b is formed by alternately and continuously arranging the region swollen to the near side in the thickness direction T and the region depressed to the far side in the longitudinal direction L by using zero point perspective projection. It is a two-dimensional figure depicting a three-dimensional shape of an undulating or mesh shape. As a result, the rear portion 31 appears to wave. Therefore, the rear portion 31 appears to expand and contract in the longitudinal direction L substantially.
- the illusion figure 41b that can be visually recognized is arranged in the rear part 31 (of the illusion part 40) so that the rear part 31 extends in the longitudinal direction L. Therefore, the user can intuitively recognize that the rear portion 31 has a function of extending by looking at the rear portion 31. Thereby, based on the function, the user can appropriately wear the absorbent article 2 while handling the rear portion 31 so as not to extend without trial and error.
- FIG. 7 is a diagram illustrating still another example of the illusion unit 40 in the absorbent article 2.
- the illusion figure 41c is a two-point perspective projection in which a rectangular parallelepiped located on the back side in the thickness direction T and a rectangular parallelepiped located on the near side are alternately and continuously along the longitudinal direction L.
- the illusion figure 41c that can be visually recognized is arranged in the rear part 31 (of the illusion part 40) so that the rear part 31 extends in the longitudinal direction L. Therefore, the user can intuitively recognize that the rear portion 31 has a function of extending by looking at the rear portion 31. Thereby, based on the function, the user can appropriately wear the absorbent article 2 while handling the rear portion 31 so as not to extend without trial and error.
- the rectangular parallelepiped is drawn in the example of FIG. 7, other solids (example: polyhedron, sphere, ellipsoid) may be sufficient.
- the illusion figure of the illusion part is not limited to the above example, and may be another illusion figure.
- an illusion figure is formed by arranging at least one type of pattern elements (eg, points, lines, circles, ellipses, polygons, stars, flowers, leaves, hearts, solids) in the width direction W.
- a plurality of patterns are provided along the longitudinal direction L. The plurality of patterns are gradually deformed along the longitudinal direction L. This will be described below with reference to FIGS.
- FIG. 8 is a diagram showing still another example of the illusion unit 40 in the absorbent article 2.
- the illusion figure 41 d includes a plurality of sphere patterns along the longitudinal direction L that are configured by arranging spheres that are pattern elements along the width direction W.
- the size of the plurality of sphere patterns gradually increases or decreases along the longitudinal direction L.
- the sphere of each sphere pattern gradually increases in the middle along the longitudinal direction L and gradually decreases from the middle.
- the rear portion 31 periodically increases or decreases along the longitudinal direction L, and appears to be wavy. Therefore, the rear portion 31 appears to extend substantially in the longitudinal direction L.
- FIG. 9 is a diagram illustrating still another example of the illusion unit 40 in the absorbent article 2.
- the illusion figure 41 e includes a plurality of rhombus patterns along the longitudinal direction L, in which rhombuses that are pattern elements are arranged along the width direction W.
- the dimension in the longitudinal direction L of the plurality of rhombus patterns gradually increases along the longitudinal direction L.
- the interval in the longitudinal direction L between the plurality of rhombus patterns is gradually increased along the longitudinal direction L.
- the rear portion 31 partially swells along the longitudinal direction L and appears to wave. Therefore, the rear portion 31 appears to extend substantially in the longitudinal direction L.
- FIG. 9 is a diagram illustrating still another example of the illusion unit 40 in the absorbent article 2.
- the illusion figure 41 e includes a plurality of rhombus patterns along the longitudinal direction L, in which rhombuses that are pattern elements are arranged along the width direction W.
- the dimension in the longitudinal direction L of the plurality of rhombus patterns gradually increases along
- the rhombus patterns adjacent to each other in the longitudinal direction L are arranged so that the rhombuses are shifted from each other in the width direction W, but may be arranged so that the rhombuses are not shifted from each other in the width direction W.
- the dimension in the longitudinal direction L of the plurality of rhombus patterns is gradually increased, but the dimension in the width direction W of the plurality of rhombus patterns may be gradually increased.
- the dimensions of the plurality of rhombus patterns are gradually increased, but the dimensions of the plurality of rhombus patterns may be gradually decreased.
- FIG. 10 is a diagram illustrating still another example of the illusion unit 40 in the absorbent article 2.
- the illusion figure 41 f includes a plurality of band patterns along the longitudinal direction L, each of which is formed by extending a band as a pattern element along the width direction W.
- the dimension (width) of the plurality of strip patterns in the longitudinal direction L repeats a period along the longitudinal direction L from a small dimension to a gradually large dimension.
- the interval in the longitudinal direction L between the plurality of band patterns repeats a period along the longitudinal direction L from a small dimension to a gradually large dimension.
- the rear portion 31 periodically swells and appears to wave. Therefore, the rear portion 31 appears to extend substantially in the longitudinal direction L.
- the cycle in which the dimension in the longitudinal direction L of the plurality of strip patterns is gradually increased from a small dimension is repeated, but the cycle in which the dimension is gradually increased from a large dimension may be repeated.
- the cycle from the small size to the small size via the large size may be repeated, or the cycle from the large size to the large size via the small size may be repeated.
- FIG. 11 is a diagram showing still another example of the illusion unit 40 in the absorbent article 2.
- the illusion figure 41 g includes a plurality of wavy heart patterns along the longitudinal direction L, each of which is a pattern element in which hearts are arranged in a wavy shape along the width direction W.
- the interval in the longitudinal direction L between the plurality of wavy heart patterns gradually increases along the longitudinal direction L.
- the rear portion 31 partially swells along the longitudinal direction L and appears to wave. Therefore, the rear portion 31 appears to extend substantially in the longitudinal direction L.
- FIG. 12 is a view showing still another example of the illusion unit 40 in the absorbent article 2.
- the illusion figure 41 h includes a plurality of heart patterns along the longitudinal direction L, in which hearts that are pattern elements are arranged along the width direction W.
- the positions of the plurality of heart patterns in the width direction W are gradually changed along the longitudinal direction L, and the hearts appear to be arranged in a wave shape along the longitudinal direction L.
- the rear portion 31 is wavy in the width direction W and appears to travel in the longitudinal direction L. Therefore, the rear portion 31 appears to extend substantially in the longitudinal direction L.
- FIG. 13 is a diagram showing still another example of the illusion unit 40 in the absorbent article 2.
- the illusion figure 41 i has a spring pattern drawn along the longitudinal direction L, in which spring-like spirals as pattern elements are arranged along the width direction W.
- the direction in which the spring of the spring pattern expands and contracts corresponds to the longitudinal direction L.
- the rear portion 31 appears to expand and contract substantially in the longitudinal direction L.
- the illusion figures 41d to 41i that are visible so that the rear part 31 extends in the longitudinal direction L are arranged in the rear part 31 (of the illusion part 40). Therefore, the user can intuitively recognize that the rear portion 31 has a function of extending by looking at the rear portion 31. Thereby, based on the function, the user can appropriately wear the absorbent article 2 while handling the rear portion 31 so as not to extend without trial and error.
- the shape of the pattern element is not limited to a specific shape, for example, a point, a line, a circle, an ellipse, a polygon, a star, a flower, a leaf, a heart, a solid, Various figures such as a polyhedron can be used.
- the absorbent article 2 is provided with a function of high absorption performance in the excretion opening contact area STA.
- the illusion part 40 is formed in the excretion opening
- the density and basis weight of the fibers and the absorbent polymer in the excretion opening contact area STA of the absorbent body main body 3m are compared with the surrounding area. The method of making it high, ie, making it bulky, is mentioned.
- FIG. 14 is a diagram illustrating still another example of the illusion unit 40 in the absorbent article 2.
- the illusion figure 41j in FIG. 14 is a crater illusion figure.
- the crater illusion is an illusion that an object appears to protrude when the upper end of a certain object is bright and the lower end is dark.
- a portion having a high absorption performance of the excretory opening contact area STA is displayed in an elliptical shape, and the front of the elliptical shape in the longitudinal direction L is bright and the rear is dark.
- the front of the elliptical longitudinal direction L is viewed as the upper end and the rear is viewed as the lower end. Therefore, the elliptical shape of the illusion figure 41j appears to protrude in the thickness direction T, and the bulk appears substantially high.
- the illusion figure 41j that is visible so that the ellipse protrudes in the thickness direction T and looks bulky is arranged in the excretory opening contact area STA. Therefore, the user can intuitively recognize that the excretory opening contact area STA is bulky by looking at the rear portion 31. Thereby, based on the function, the user can wear the absorbent article 2 while handling the excretory opening contact area STA in contact with the excretion opening without trial and error, that is, the absorbent article. 2 can be appropriately mounted.
- the crater illusion figure is used as the illusion figure 41j so that the excretory opening contact area STA looks bulky.
- the tilt illusion is an illusion in which, when another line intersects with a certain line, the line appears to be tilted in a direction in which the acute angle side of those crossing angles is overestimated, and is exemplified by the Zerner illusion and the Fraser illusion.
- the curved illusion is an illusion in which a smoothly curved line is perceived when the tilt illusion that appears to tilt to the right and the tilt illusion that appears to tilt to the left are combined, and is exemplified by the Hunger illusion.
- the illusion of bulging is an illusion that appears to bulge when the curved line is made two-dimensional and appears to bulge. It combines the illusion of checkered pattern and the illusion of shifted lines. Dimensional fold illusion.
- ⁇ Tensile elongation (breaking elongation) of fiber sheet> A portion to be measured in the material of the absorbent article 2 to be measured is cut into a size of 150 mm ⁇ 25 mm (longitudinal direction ⁇ width direction) to obtain a measurement sample.
- a tensile tester manufactured by Shimadzu Corporation, Autograph, model AGS-1kNG
- the tensile elongation is measured under the condition of a tensile speed of 100 mm / min.
- the average value of the tensile elongation of the three measurement samples is calculated as the final tensile elongation.
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Abstract
Description
(1)複数の資材から構成される吸収性物品であって、前記複数の資材のうちの少なくとも一つが有する機能を使用者が視認可能なように、前記機能を有する部分又は前記機能を有する部分に対応する部分に、錯視図形が描画された錯視部を有する、吸収性物品。
本吸収性物品は、長手方向に伸長する後方部分を含んでおり、すなわち後方部分が長手方向に伸長するという機能を有している。本機能は、装着者の両足の動きと後方部分とを連動させ動かし易くして、吸収性物品の装着性を高めるためのものである。この場合、吸収性物品を下着に装着するとき、後方部分を不用意に後方に引っ張ると、後方部分が伸びてしまい、想定されているよりも伸びた状態で吸収性物品が下着に装着されたり、吸収性物品が下着からずれて装着されたりするおそれがある。そうなると、吸収性物品は、当初想定されていた装着位置からずれてしまい、上記の機能を発揮できないおそれがある。そこで、本吸収性物品では、錯視部を後方部分に配置し、すなわち後方部分に錯視図形を描画している。その錯視図形は、後方部分が長手方向に伸長するように視認可能な錯視図形を含んでいる。そのため、使用者は、後方部分が伸長する機能を有することを直感的に認識できる。それにより、その機能に基づいて、試行錯誤をせずとも、後方部分を伸長させないように取り扱いながら吸収性物品を装着すること、すなわち吸収性物品を適切に装着することが可能となる。
本吸収性物品では、フレーザー・ウィルコックス錯視図形、すなわち長手方向に沿って、輝度の異なる色を繰り返し配置する図形を錯視図形として用いることで、吸収性物品の後方部分が長手方向に動いているように、すなわち伸縮するように見える。そのため、使用者は、伸びる機能を容易に想起でき、及び、その機能を有する後方部分を容易に把握することができる。それにより、その機能に基づいて、試行錯誤をせずとも、後方部分を伸長させないようにしながら吸収性物品を装着すること、すなわち吸収性物品を適切に装着することが可能となる。それに加えて、使用者が使用前に吸収性物品を伸長させなくても、伸縮性に特に優れた(すなわち装着感に優れた)高品質の吸収性物品であるとの期待感を使用者に醸成させることができる。
本吸収性物品では、幾何学的錯視の傾き錯視図形、すなわち長手方向に沿って、傾きの異なる図形を組み合わせて配置する図形を錯視図形として用いることで、吸収性物品の後方部分が長手方向に動いているように、すなわち伸縮するように見える。そのため、使用者は、伸びる機能を容易に想起でき、及び、その機能を有する後方部分を容易に把握できる。
本吸収性物品では、二次元の図形が三次元の図形に見える錯覚を起こす遠近法で形成された図形を錯覚図形として用いることで、奥に見える要素と手前に見える要素が混在することにより吸収性物品の後方部分が伸長するように見える。そのため、使用者は、伸びる機能を容易に想起でき、及び、その機能を有する後方部分を容易に把握できる。
本吸収性物品では、少なくとも一種類のパターン要素が幅方向に並んで構成されるパターンを長手方向に沿って複数個備えており、かつ、前記複数個のパターンが前記長手方向に沿って徐々に変形することで、吸収性物品の後方部分が伸長するように見える。そのため、使用者は、伸びる機能を容易に想起でき、及び、その機能を有する後方部分を容易に把握できる。
本吸収性物品では、複数個のパターンの大きさが、長手方向に沿って徐々に大きく又は小さくなるように形成された図形を錯覚図形として用いることで、吸収性物品の後方部分が伸縮するように見える。そのため、使用者は、伸びる機能を容易に想起でき、及び、その機能を有する後方部分を容易に把握できる。
本吸収性物品では、複数個のパターンの幅方向又は長手方向の寸法が、長手方向に沿って徐々に大きく又は小さくなるように形成された図形を錯覚図形として用いることで、吸収性物品の後方部分が伸長するように見える。そのため、使用者は、伸びる機能を容易に想起でき、及び、その機能を有する後方部分を容易に把握できる。
本吸収性物品では、複数個のパターン間の長手方向の寸法間隔が長手方向に沿って徐々に広く又は狭くなるように形成された図形を錯覚図形として用いることで、吸収性物品の後方部分が伸長するように見える。そのため、使用者は、伸びる機能を容易に想起でき、及び、その機能を有する後方部分を容易に把握できる。
本吸収性物品では、複数個のパターンが長手方向及び/又は幅方向に沿って波状又はバネ状に並んだ図形を錯覚図形として用いることで、吸収性物品の後方部分が伸長するように見える。そのため、使用者は、伸びる機能を容易に想起でき、及び、その機能を有する後方部分を容易に把握できる。
本吸収性物品では、錯視図形が補助シートの吸収体側の表面に描画されるので、使用者は、表面シート側から、すなわち吸収性物品を装着するときに見易い肌側から錯視図形を確認することができる。そのため、使用者は、伸び縮みする機能を容易に想起でき、及び、その機能を有する後方部分を容易に把握できる。また、一般に表面シートよりも繊維密度が高い補助シートに錯視図形を描画できるので、錯視図形をより明確に描くことができ、使用者に分かり易く視認させることができる。
本吸収性物品では、錯視図形が表面シートの肌側の表面に描画されるので、使用者は、表面シート側から、すなわち吸収性物品を装着するときに見易い肌側から錯視図形を直接に確認できる。そのため、使用者は、伸び縮みする機能をより容易に想起でき、及び、その機能を有する後方部分をより容易に把握できる。
本吸収性物品では、錯視図形が裏面シートの非肌側の表面に描画されるので、使用者は、裏面シート側から錯視図形を直接に確認できる。そのため、使用者は、包装状態の裏面シートが表側に向いている状態においても、伸び縮みする機能を容易に想起でき、及び、その機能を有する後方部分を容易に把握できる。
まず、積繊装置の回転ドラムが回転され、材料供給器から供給された積繊材料が、回転ドラムの外周面に設置されたパターンプレートにおける負圧室に連通した溝内に堆積される。それにより、パターンプレートの溝内に、複数の吸収体本体部3mが連結した形状を有する積繊体が形成される。このとき、パターンプレートの溝の形状により、例えば坪量が全面で概ね均一な積繊体や、坪量が多い領域を部分的に有する積繊体が形成される。次いで、形成された溝内の積繊体がパターンプレートと共に正圧室に到達すると、積繊体がパターンプレートから離脱され、吸収体連続体として搬送方向に搬送される。次いで、吸収体連続体が搬送方に搬送されつつ、アンビルロールとカットロールとに挟まれることにより、吸収体連続体における吸収体本体部3mの後方の部分3mbに対応する領域に、複数の切れ目3Sが形成される。次いで、複数の切れ目3Sを有する吸収体連続体は、キャリアシート3nが搬送方向に連続した連続キャリアシートに貼り付けられる。次いで、連続キャリアシート付き吸収体連続体は、搬送方向に搬送されつつ、アンビルロールとカットロールとに挟まれることにより、個々のキャリアシート3n付き吸収体本体部3m、すなわち吸収体3となる。次いで、表面シート4が搬送方向に連続した連続表面シートが搬送方向に搬送されつつ、その連続表面シート上に個々の吸収体3が所定の間隔で載置され、連続表面シートと吸収体3とが接合される。次いで、連続表面シート付き吸収体が搬送方向に搬送されつつ、アンビルロールとエンボスロールとに挟まれることにより(エンボス加工)、圧搾部26が形成される。次いで、裏面シート5が搬送方向に連続した連続裏面シートが搬送方向に搬送されつつ、連続表面シート付き吸収体と接合されて、続いて吸収性物品2の形状に切り出される。その後、吸収性物品2の表面シート4の後方の部分4bの表面にインクジェットプリンタで錯視図形41が印刷されることにより、錯視部40が形成される。以上のようにして、吸収性物品2が形成される。
なお、図9の例では、長手方向Lに隣り合う菱形パターンは、菱形が互いに幅方向Wにずれるように配置されるが、菱形が互いに幅方向Wにずれないように配置されてもよい。また、図9の例では、複数個の菱形パターンの長手方向Lの寸法が徐々に大きくなるが、複数個の菱形パターンの幅方向Wの寸法が徐々に大きくなってもよい。また、図9の例では、複数個の菱形パターンの寸法が徐々に大きくなるが、複数個の菱形パターンの寸法が徐々に小さくなってもよい。
なお、図10の例では、複数個の帯パターンの長手方向Lの寸法が小さい寸法から徐々に大きな寸法になる周期を繰り返すが、大きい寸法から徐々に小さな寸法になる周期を繰り返してもよいし、小さい寸法から大きい寸法を経由して小さい寸法になる周期を繰り返してもよいし、大きい寸法から小さい寸法を経由して大きい寸法になる周期を繰り返してもよい。
本実施の形態では、吸収性物品2は、排泄口当接域STAに、高い吸収性能という機能が付与されている。そして、上記の吸収性物品2における、高い吸収性能という機能が付与された排泄口当接域STAに、錯視部40が形成される。ここで排泄口当接域STAの吸収性能を高くする方法としては、吸収体本体部3mの排泄口当接域STAの繊維や吸収性ポリマの密度や坪量を、その周辺領域と比較して高くする、すなわち嵩高くする方法が挙げられる。図14は、吸収性物品2における錯視部40の更に他の例を示す図である。
なお、図14の例では、錯視図形41jとしてクレーター錯視図形を用いて、排泄口当接域STAが嵩高く見えるようにしているが、例えば幾何学的錯視の傾き錯視の彎曲錯視の膨らみの錯視を用いてもよい。傾き錯視とは、ある線に別の線が交差するとき、それらの交差角のうちの鋭角側を過大視する方向に線が傾いて見える錯視であり、ツェルナー錯視やフレーザー錯視に例示される。彎曲錯視とは、右に傾いて見える傾き錯視と左に傾いて見える傾き錯視を合せたとき、滑らかに彎曲した線が知覚される錯視であり、へング錯視に例示される。膨らみの錯視とは、その彎曲する線を二次元にしたときに奥行方向にも曲がった印象を受け、膨らんだように見える錯視であり、市松模様錯視とずれた線の錯視とを組み合わせた二次元彎曲錯視である。
(1)測定対象の吸収性物品2の資材における測定すべき部分を、150mm×25mm(長手方向×幅方向)のサイズにカットし、測定試料とする。
(2)最大荷重容量が50Nであるロードセルを備えた引張試験機(島津製作所(株)製、オートグラフ、型式AGS-1kNG)を使用して、三つの測定試料それぞれにつき、100mmのチャック間距離、100mm/分の引張速度の条件で引張伸度を測定する。
(3)三つの測定試料の引張伸度の平均値を最終的な引張伸度として算出する。
3 吸収体
4 表面シート
5 裏面シート
40 錯視部
41 錯視図形
Claims (13)
- 複数の資材から構成される吸収性物品であって、
前記複数の資材のうちの少なくとも一つが有する機能を使用者が視認可能なように、前記機能を有する部分又は前記機能を有する部分に対応する部分に、錯視図形が描画された錯視部を有する、
吸収性物品。 - 前記吸収性物品は、
長手方向、幅方向及び厚さ方向を有しており、
前記長手方向の後方に位置し、前記長手方向に伸長する後方部分を含み、
前記複数の資材の少なくとも一つにおける前記後方部分に対応する部分は、前記錯視部を含み、
前記錯視図形は、前記後方部分が前記長手方向に伸長する機能を使用者が視認可能なように前記錯視部に描画されている、
請求項1に記載の吸収性物品。 - 前記錯視図形は、前記後方部分が前記長手方向に伸長するように視認可能な、フレーザー・ウィルコックス錯視図形を含む、
請求項2に記載の吸収性物品。 - 前記錯視図形は、前記後方部分が前記長手方向に伸長するように視認可能な、幾何学的錯視の傾き錯視図形を含む、
請求項2又は3に記載の吸収性物品。 - 前記錯視図形は、前記後方部分が前記長手方向に伸長するように視認可能な、遠近法で形成された図形を含む、
請求項2乃至4のいずれか一項に記載の吸収性物品。 - 前記錯視図形は、少なくとも一種類のパターン要素が前記幅方向に並んで構成されるパターンを、前記長手方向に沿って複数個備え、
前記複数個のパターンは、前記長手方向に沿って徐々に変形する、
請求項2乃至5のいずれか一項に記載の吸収性物品。 - 前記複数個のパターンの大きさは、前記長手方向に沿って、徐々に大きく又は小さくなる、
請求項6に記載の吸収性物品。 - 前記複数個のパターンの前記幅方向又は前記長手方向の寸法は、前記長手方向に沿って、徐々に大きく又は小さくなる、
請求項6又は7に記載の吸収性物品。 - 前記複数個のパターンの間の前記長手方向の間隔は、前記長手方向に沿って、徐々に広く又は狭くなる、
請求項6乃至8のいずれか一項に記載の吸収性物品。 - 前記複数個のパターンは、前記長手方向及び/又は前記幅方向に沿って波状又はバネ状に並んでいる、
請求項6乃至9のいずれか一項に記載の吸収性物品。 - 前記複数の資材は、表面シート、裏面シート、前記表面シートと前記裏面シートとの間に位置する吸収体と、前記表面シートと前期吸収体との間に位置する補助シートとを含み、
前記錯視部は前記補助シートに設けられ、前記錯視図形は前記補助シートの前記吸収体側の表面に描画される、
請求項2乃至10のいずれか一項に記載の吸収性物品。 - 前記複数の資材は、表面シート、裏面シート、前記表面シートと前記裏面シートとの間に位置する吸収体とを含み、
前記錯視部は前記表面シートに設けられ、前記錯視図形は前記表面シートの肌側の表面に描画される、
請求項2乃至10のいずれか一項に記載の吸収性物品。 - 前記複数の資材は、表面シート、裏面シート、前記表面シートと前記裏面シートとの間に位置する吸収体とを含み、
前記錯視部は前記裏面シートに設けられ、前記錯視図形は前記裏面シートの非肌側の表面に描画される、
請求項2乃至10のいずれか一項に記載の吸収性物品。
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JP2022082496A (ja) * | 2021-08-17 | 2022-06-02 | 未紅 小西 | 新規生理用ナプキンおよびそれを用いた下着 |
WO2024004417A1 (ja) * | 2022-06-27 | 2024-01-04 | ユニ・チャーム株式会社 | おむつ |
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