WO2013129167A1 - 不織布 - Google Patents

不織布 Download PDF

Info

Publication number
WO2013129167A1
WO2013129167A1 PCT/JP2013/053895 JP2013053895W WO2013129167A1 WO 2013129167 A1 WO2013129167 A1 WO 2013129167A1 JP 2013053895 W JP2013053895 W JP 2013053895W WO 2013129167 A1 WO2013129167 A1 WO 2013129167A1
Authority
WO
WIPO (PCT)
Prior art keywords
nonwoven fabric
protrusion
fiber
small
small protrusion
Prior art date
Application number
PCT/JP2013/053895
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
宏子 川口
正洋 谷口
Original Assignee
花王株式会社
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
Application filed by 花王株式会社 filed Critical 花王株式会社
Priority to BR112014020031-9A priority Critical patent/BR112014020031B1/pt
Priority to RU2014139060A priority patent/RU2637404C2/ru
Priority to CN201380004008.9A priority patent/CN103958756B/zh
Publication of WO2013129167A1 publication Critical patent/WO2013129167A1/ja

Links

Images

Classifications

    • 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 of the pads
    • 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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/76—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres otherwise than in a plane, e.g. in a tubular way
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/558—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in combination with mechanical or physical treatments other than embossing

Definitions

  • the present invention relates to a nonwoven fabric.
  • Patent Document 2 discloses a multilayer nonwoven fabric in which one side of a sheet material is a protruding portion extending in a streak shape, and the cross-section thereof is a kamaboko (substantially semicircular) shape.
  • the groove part in this nonwoven fabric is formed so that the basis weight is the lowest in the nonwoven fabric, the content of the horizontally oriented fibers is high, and the content of the vertically oriented fibers is low.
  • the side part of a convex-shaped part has the highest fabric weight in a nonwoven fabric, and the content rate of a longitudinally-oriented fiber is high.
  • Patent Literature 3 discloses a laminated nonwoven fabric of an upper layer nonwoven fabric and a lower layer nonwoven fabric, in which a large number of penetrating liquid passage holes are formed.
  • the upper and lower layers are joined to each other around the liquid passage hole of the laminated nonwoven fabric, a first space is formed between the upper layer nonwoven fabric and the lower layer nonwoven fabric, and a second space is formed below the lower layer nonwoven fabric.
  • the arched portion of the upper nonwoven fabric is a small convex portion that is smaller than the arched portion of the lower nonwoven fabric.
  • the above-mentioned laminated nonwoven fabric is said to have a high cushion feeling and soft feeling due to the above-described spaces.
  • Patent Document 4 discloses a polymer web.
  • the polymer web includes a pattern of individual hair-like fibrils, each hair-like fibril being a protruding extension of the polymer web and having side walls defining an open proximal portion and a closed distal portion.
  • the polymer web is thinned at or near the closed distal portion of the hair-like fibril, and the hair-like fibril has an average cross-sectional diameter of 50 ⁇ m at half the height of the fibril. It is supposed to be in the range of ⁇ 130 ⁇ m.
  • the hair-like fibrils are said to have an excellent soft feel, which has reduced rewet, i.e. the surface of the top sheet after first passing the top sheet into the underlying absorbent layer. The amount of fluid re-introduced into the chamber.
  • the present invention provides a first projecting portion projecting on the first surface side of the sheet nonwoven fabric in plan view and having an internal space, and a second projecting surface projecting on the second surface side opposite to the first surface side and having an internal space.
  • Two protrusions, and the first and second protrusions are nonwoven fabrics arranged alternately and continuously in different directions intersecting in plan view of the nonwoven fabric, and the tops of the first protrusions
  • the first surface side of the first protrusion is configured with a small protrusion having an outer diameter smaller than the outer diameter of the first protrusion, and an internal space existing inside the first protrusion and an internal space existing inside the small protrusion communicate with each other.
  • the nonwoven fabric which comprises one interior space is provided.
  • the present invention provides a skin-friendly feel by reducing the contact area with the skin, is excellent in shape retention of the nonwoven fabric even at the seating pressure of the wearer, the skin contact area is kept small even at high pressure, and the liquid return amount
  • the present invention relates to providing a non-woven fabric that is reduced.
  • the nonwoven fabric 10 of the present invention is preferably applied to a surface sheet of an absorbent article such as a sanitary napkin or a disposable diaper.
  • the first surface side Z1 is used with the skin surface side of the wearer, and the second surface side Z2 is used. Is preferably disposed on the absorbent body (not shown) side inside the absorbent article.
  • this invention is limited to this and is not interpreted.
  • the nonwoven fabric 10 of the present invention includes a first protruding portion 11 that protrudes on the first surface side Z1 on the side of the nonwoven fabric of the sheet in plan view and has an internal space 11K, and a first surface side Z1. And a second projecting portion 12 projecting on the second surface side Z2 opposite to the inner surface 12K.
  • These first protrusions 11 and second protrusions 12 are alternately and continuously arranged in different directions intersecting in plan view over the entire surface of the nonwoven fabric 10, for example.
  • the different directions are, as a specific example, an x direction that is one direction of the different directions and a y direction that is different from the x direction and is another direction of the different directions.
  • the convex portion viewed from the first surface side Z ⁇ b> 1 is the first projecting portion 11, and the concave portion is the second projecting portion 12. Further, the convex portion viewed from the second surface side Z ⁇ b> 2 is the second projecting portion 12, and the concave portion is the first projecting portion 11. Therefore, the first protrusion 11 and the second protrusion 12 are partially shared. Further, the top portion 11T of the first projecting portion 11 includes a small projecting portion 21 that further projects to the first surface side Z1. As described above, the first surface side Z ⁇ b> 1 is formed with a two-stage protruding portion. The small protrusion 21 has a smaller diameter than the first protrusion 11.
  • the small protrusion 21 is preferably arranged so as not to protrude from the first protrusion 11 in plan view. Further, the internal space 21K existing inside the small protrusion 21 and the internal space 11K of the first protrusion 21 are in communication with each other to constitute one internal space 23. Moreover, when the cross section (refer FIG. 3) of the 1st protrusion part 11 and the small protrusion part 21 is seen, the curve C showing the outline of the cross section outer side of the nonwoven fabric 10 is small protrusion part 21 from the wall part 13 of the 1st protrusion part 11. FIG. The curved line is continuous to the wall part 22 and has an inflection point P between the first projecting part 11 and the small projecting part 21.
  • first protrusions 11 and the second protrusions 12 will be described in more detail.
  • a large number of first protrusions 11 are arranged on the first surface side Z1 so as to obliquely intersect in two directions in the vertical and horizontal directions (hereinafter, this arrangement is referred to as an oblique lattice).
  • This lattice arrangement may be orthogonal (90 °), and in this case, the lattice arrangement may be distinguished as an orthogonal lattice arrangement.
  • the first direction (x) and the second direction (y) (see FIG. 2) in the plane preferably intersect at an angle of 30 ° to 90 °.
  • many 2nd protrusion parts 12 which protrude in the 2nd surface side Z2 of a nonwoven fabric are formed.
  • the second protrusions 12 are also in an orthogonal lattice arrangement, but may be an oblique lattice arrangement. Since the preferable range of the crossing angle is determined along with the first protrusion 11, it is the same as described above.
  • the first projecting portion 11 and the second projecting portion 12 project in opposite directions with respect to the sheet surface. In addition, they are arranged alternately in a relationship that is not in the same position in both a plan view and a side view, that is, there is no overlap.
  • the first protrusion 11 and the second protrusion 12 arranged so as to extend in the first direction (x direction) and the second direction (y direction) in the surface are continuous without contradiction to the surface
  • the nonwoven fabric 10 is comprised.
  • continuous without contradiction means that when a specific shape portion is continuous and becomes a surface, the entire surface is continuous with a gentle curved surface without being refracted or discontinuous.
  • sequence form of the said 1st protrusion part 11 and the 2nd protrusion part 12 is not limited above, What is necessary is just a form which can be arrange
  • the six second protrusions 12 may be arranged at the apex of the hexagon and the pattern may be spread in the plane. In this case, since the number of the second protrusions 12 exceeds the number of the first protrusions 11, a state in which the second protrusions 12 are adjacent to each other occurs. Such an arrangement is also included in the meaning that the first protrusions 11 and the second protrusions 12 are arranged alternately.
  • the top part 11T of the first protrusion part 11 and the top part 12T of the second protrusion part 12 are rounded truncated cones or hemispheres, and the top part 11T is constituted by the small protrusion part 21, and the first Similar to the projecting portion 11 and the like, it has a rounded truncated cone shape or hemisphere.
  • the first and second projecting portions 11 and 12 and the small projecting portion 21 are not limited to the above shapes, and may have any projecting shape, such as various cone shapes (in this specification, cone shapes). Is actually meant to include a cone, a truncated cone, a pyramid, a truncated pyramid, an oblique cone, etc.).
  • the said protrusion form of the 1st protrusion part 11 is a virtual shape in the state in which the said small protrusion part 21 is not made, and actually a part of 1st protrusion part top part 11T is a 1st surface in the said protrusion form.
  • a small protrusion 21 is configured to further protrude toward the side Z1.
  • the 1st, 2nd protrusion parts 11 and 12 and the small protrusion part 21 have the frustoconical or hemispherical internal space 11K, 12K and the internal space 21K with the round top part similar to the external shape. Yes.
  • a wall 13 is provided between the top of the first protrusion 11 (hereinafter also referred to as the first protrusion 11) 11T and the opening 11H.
  • the wall portion 13 forms an annular structure in the first projecting portion 11.
  • it has the wall part 14 between the top part (henceforth the 2nd protrusion part top part) 12T of the 2nd protrusion part 12, and its opening part 12H.
  • the wall portion 14 forms an annular structure in the second projecting portion 12.
  • the wall portion 14 is shared with a part of the wall portion 13.
  • a wall 22 is provided between the top of the small protrusion 21 (hereinafter also referred to as a small protrusion top) 21T and the opening 21H.
  • the wall portion 22 forms an annular structure in the small protruding portion 21, and also has an annular structure when viewed together with the wall portion 13 of the first protruding portion 11. That is, the wall 13 of the first protrusion 11 and the wall 22 of the small protrusion 21 have a continuous configuration.
  • the “annular” herein is not particularly limited as long as it has a series of endless shapes in plan view, and may be any shape such as a circle, an ellipse, a rectangle, or a polygon in plan view. In order to maintain the continuous state of the sheet suitably, a circle or an ellipse is preferable.
  • any ring structure such as a cylinder, an oblique cylinder, an elliptical column, a truncated cone, a truncated cone, a truncated elliptical cone, a truncated quadrangular pyramid, and a truncated oblique pyramid
  • a cylinder, an elliptical column, a truncated cone, and a truncated elliptical cone are preferable.
  • the nonwoven fabric 10 having the first and second projecting portions 11 and 12 and the small projecting portions 21 arranged as described above does not have a bent portion, and is configured by a curved surface that is continuous as described above. .
  • the said nonwoven fabric 10 has a structure continuous in the surface direction. This “continuous” means that there are no intermittent portions or small holes. However, fine holes such as gaps between fibers are not included in the small holes.
  • the small hole is defined as a hole having a diameter equivalent to a circle of 1.0 mm or more, for example.
  • the fibers constituting the wall portion 13 have fiber orientation in the direction connecting the first protruding portion top portion 11T and the edge portion of the opening portion 11H. In other words, it has fiber orientation in the direction in which the wall portion 13 stands.
  • the wall portion 13 has such fiber orientation over the entire circumference.
  • the fiber which comprises the wall part 22 of the small protrusion part 21 has fiber orientation in the direction which ties the edge part of the small protrusion part top part 21T and its opening part 21H. In other words, it has fiber orientation in the direction in which the wall portion 22 stands.
  • the fibers constituting the wall portion 22 of the small protruding portion 21 have such fiber orientation over the entire circumference.
  • the fibers constituting the wall portion 14 of the second protrusion 12 have fiber orientation in the direction connecting the second protrusion top 12T and the edge of the opening 12H.
  • the fiber orientation of the wall portion 14 is the same as the fiber orientation of the wall portion 13 at the common portion with the wall portion 13 described above.
  • the fibers are oriented in the MD direction and are fused as they are.
  • the fibers are oriented in the direction, in the cross section in the CD direction, the fibers are oriented in a direction perpendicular to the standing direction, and thus such fiber orientation is not present.
  • the fiber material that can be used for the nonwoven fabric 10 of the present invention is not particularly limited. Specific examples include the following fibers. Polyolefin fibers such as polyethylene (PE) fibers and polypropylene (PP) fibers; there are fibers using a thermoplastic resin such as polyethylene terephthalate (PET) and polyamide alone, and there are structures such as a core-sheath type and a side-by-side type. There are composite fibers. In the present invention, it is preferable to use a composite fiber.
  • the composite fiber examples include a core-sheath fiber having a high melting point component as a core portion and a low melting point component as a sheath portion, and a side-by-side fiber in which a high melting point component and a low melting point component are arranged in parallel.
  • Preferred examples thereof include fibers having a core-sheath structure in which the sheath component (low-melting-point component) is polyethylene or low-melting-point polypropylene.
  • the fibers having the core / sheath structure include PET (core) / PE ( Examples include fibers having a core-sheath structure such as a sheath), PP (core) / PE (sheath), polylactic acid (core) / PE (sheath), and PP (core) / low melting point PP (sheath). More specifically, the constituent fibers preferably include polyolefin fibers such as polyethylene fibers and polypropylene fibers, polyethylene composite fibers, and polypropylene composite fibers.
  • the composite composition of the polyethylene composite fiber is polyethylene terephthalate / polyethylene
  • the composite composition of the polypropylene composite fiber is preferably polyethylene terephthalate / low melting point polypropylene, and more specifically, PET (core). / PE (sheath), PET (core) / low melting point PP (sheath).
  • PET core
  • PE sheath
  • PET core
  • low melting point PP sheath
  • the thickness (TS) of the small protrusion 21 at the time of minute pressurization is preferably 5 to 70% of the thickness T of the nonwoven fabric 10 at the time of minute pressurization. More preferably, it is 10 to 70%, and particularly preferably 30 to 70%. By setting it as such a range, the shape of the small protrusion part 21 is maintained in the state where only the mounting pressure of the absorbent article is applied when the wearer stands or walks (when 0.05 kPa is applied). It is preferable because the contact area with the skin is kept small.
  • the thickness T of the nonwoven fabric 10 at the time of minute pressurization may be appropriately adjusted depending on the use.
  • the thickness TS of the small protrusion 21 at the time of minute pressurization is preferably 0.1 mm to 4.2 mm, more preferably 0.2 mm to 4.2 mm, and particularly preferably 0.2 mm for the above reasons. 3 mm to 4.2 mm.
  • the thickness (TSp) of the small protrusion 21 when pressurized with a pressure of 3.5 kPa is 20 to 70% of the thickness (TS) of the small protrusion 21 when slightly pressurized (0.05 kPa). It is preferable that More preferably, it is 20 to 60%, and particularly preferably 20 to 50%. By adopting such a range, the shape of the small protruding portion 21 is maintained to such an extent that the tactile sensation to the wearer is not deteriorated even at a high pressure (3.5 kPa) such as when the wearer is seated. The contact area with the skin is kept small, and the amount of liquid return can be reduced.
  • the nonwoven fabric 10 demonstrated by the said embodiment has the following effects. Since the nonwoven fabric 10 is a small protruding portion 21 having a diameter smaller than that of the first protruding portion 11 formed on the first protruding portion top portion 11T, the skin contact area is reduced and the skin is gentle to the skin. Can be given. Furthermore, since the nonwoven fabric 10 has a shape having the small protruding portion 21 on the first protruding portion 11, the nonwoven fabric 10 has excellent shape retention even under high pressure such as a seating pressure of the wearer, and has a skin contact area. Can be reduced to give a gentle touch to the skin.
  • the nonwoven fabric 10 has excellent cushioning properties. Since the nonwoven fabric 10 of this embodiment has the part which protruded not only on the single side
  • the fibers have an appropriate cushioning property that prevents the fibers from being crushed in the thickness direction. Furthermore, even if the nonwoven fabric 10 is crushed due to the pressing force due to the fiber orientation of the walls 13 and 22, the shape restoring force is large, and the initial cushioning force is easily maintained even if the packing state and wearing are continued. . That is, the nonwoven fabric is excellent in shape retention even at the seating pressure of the wearer, the skin contact area is kept small even at the time of high pressurization, and the first and second protrusions 11 and 12 and the small protrusion 21 are not easily crushed and deformed. If it happens, it is easy to recover.
  • the said nonwoven fabric 10 is excellent in the touch.
  • the nonwoven fabric 10 of this embodiment has a small protruding portion 21 and a second protruding portion 12 in both directions, and the top portions 21T and 12T are rounded. Therefore, whichever surface is the skin side, a good touch that the top sheet softly contacts the skin with respect to the skin is realized.
  • the non-woven fabric 10 is also very soft and soft in that it does not have a hot melt adhesive or heat bonded joint.
  • the point contact mentioned above has an effect also when excretion etc. are received, and the smooth touch is implement
  • the liquid flows smoothly through the fibers by the oriented fibers.
  • the nonwoven fabric 10 itself is excellent in air permeability by maintaining the structure described above, and is also useful for preventing fog due to the effect of point contact.
  • the liquid that has passed through the small protrusion 21 smoothly enters the internal space 11K of the first protrusion 11. Since it flows in, liquid permeability is good. And the liquid which permeate
  • the support 30 having the structure shown in FIG. 4A is used as the web-shaped support.
  • the support 30 has a large number of protrusions 31 corresponding to the positions where the second protrusions 12 are shaped, and has holes corresponding to the positions where the first protrusions 11 and the small protrusions 21 are shaped. 32 is arranged.
  • the small protrusion 21 is shaped so as to enter the hole 32 into the top 11T of the first protrusion 11 shaped corresponding to the hole 32. Further, the second protrusion 12 is shaped at the position of the protrusion 31. The height of the small protrusion 21 is appropriately determined depending on the height of the protrusion 31 and the wind speed. In addition, the drawing arrow has shown the flow of the warm air 60 typically.
  • the fiber web 50 before being fused is supplied from a card machine (not shown) to a device for shaping the web so as to have a predetermined thickness.
  • the shaping apparatus first, the fiber web 50 is fixed to the support 30.
  • warm air 60 is blown onto the fiber web 50 on the support 30 (the state shown in FIG. 4 (1)).
  • the fiber web 50 is shaped so that the shape of the support body 30 may be met (state of FIG. 4 (2)).
  • the temperature of the warm air 60 at this time is preferably 0 to 70 ° C. lower than the melting point of the thermoplastic fiber constituting the fiber web 50 in consideration of a general fiber material used for this type of product. More preferably, it is lower by -50 ° C.
  • the air velocity of the warm air 60 at this time is set to 70 to 180 m / s, preferably 80 to 150 m / s, from the viewpoint of formability and texture, although it depends on the height of the protrusion 31 of the support 30. s, more preferably 90 to 130 m / s.
  • the manufacturing apparatus (not shown) is a conveyor type or drum type capable of transporting the support 30, and winds the molded nonwoven fabric 10 being transported by a roll. An embodiment is mentioned.
  • the nonwoven fabric 10 of the present invention is obtained.
  • MD and CD may be turned to either direction about the nonwoven fabric 10 of this embodiment, when it says in the model figure shown in the said FIG. 2, it is preferable to make drawing vertical direction MD.
  • the MD is also referred to as a machine direction, which is a fiber web feeding direction when manufacturing a nonwoven fabric, and is an abbreviation for “Machine Direction”.
  • the CD is a direction orthogonal to the MD and is an abbreviation of “Cross Direction”.
  • the height of the protrusion 31 of the support 30 is set to 0.3 to 5 mm, preferably set to 0.4 to 4 mm, and more preferably set to 0.5 to 3 mm.
  • each fiber is fused by blowing air at a temperature at which each fiber can be appropriately fused (hereinafter referred to as hot air).
  • the temperature of the hot air at this time is preferably 0 to 70 ° C. higher than the melting point of the thermoplastic fiber constituting the fiber web 50 in consideration of a general fiber material used for this type of product. More preferably, the temperature is higher.
  • thermoplastic fiber the fiber described above is used.
  • the temperature of the hot air blown onto the fiber web 50 is preferably equal to or higher than the melting point of the low melting point component and lower than the melting point of the high melting point component.
  • the temperature of the hot air blown to the fiber web 50 is more preferably a temperature not lower than the melting point of the low melting point component and 10 ° C. lower than the melting point of the high melting point component, and more preferably 5 ° C. higher than the melting point of the low melting point component. It is more preferable that the temperature is lower by at least ° C.
  • the fiber web 50 preferably contains 30 to 100% by mass of thermoplastic fiber, more preferably 40 to 80% by mass.
  • the fiber web 50 may include fibers that do not inherently have heat-fusibility (for example, natural fibers such as cotton and pulp, rayon, and acetate fibers).
  • the nonwoven fabric 10 which has a 2 step
  • the outer diameter of the first protrusion 11 is a diameter of the minimum circumscribed circle when the opening 11H of the first protrusion 11 is viewed in plan
  • the outer diameter of the small protrusion 21 is a small protrusion. It is the diameter of the minimum circumscribed circle when the opening 21H of the portion 21 is viewed in plan.
  • the nonwoven fabric 10 of the present invention can be used for various applications.
  • it can be suitably used as a surface sheet of absorbent articles such as disposable diapers, sanitary napkins, panty liners, urine absorption pads and the like.
  • the both surfaces of the nonwoven fabric 10 are excellent in air permeability, liquid diffusibility, deformation characteristics at the time of pressing force, etc. due to the concavo-convex structure, between the surface sheet such as diapers and sanitary products and the absorbent body It can also be used as a sub-layer interposed between.
  • the form utilized as a surface sheet, gathers, an exterior sheet, and a wing of an absorbent article is also mentioned.
  • seat, and a filter is also mentioned.
  • the 1st protrusion part which protrudes in the 1st surface side of the side which planarly viewed the nonwoven fabric of the ⁇ 1> sheet
  • the first and second protrusions are nonwoven fabrics arranged alternately and continuously in different directions intersecting in plan view of the nonwoven fabric,
  • the first surface side of the top of the first protrusion is composed of a small protrusion having an outer diameter smaller than the outer diameter of the first protrusion, and an internal space existing inside the first protrusion and the inner side of the small protrusion A non-woven fabric in which the internal space existing in the space is connected to form one continuous internal space.
  • the curve representing the outer contour of the cross section of the nonwoven fabric is a curve continuous from the wall portion of the first protrusion portion to the wall portion of the small protrusion portion, and the first protrusion portion and the small protrusion portion.
  • ⁇ 1> which has an inflection point between.
  • ⁇ 3> The nonwoven fabric according to ⁇ 1> or ⁇ 2>, wherein an angle formed by different directions intersecting in plan view is 90 °.
  • ⁇ 4> The non-woven fabric according to any one of ⁇ 1> to ⁇ 3>, wherein the small protruding portion has a rounded truncated cone shape.
  • the first projecting portion, the second projecting portion, and the small projecting portion have a frustoconical or hemispherical interior space with a rounded top similar to the outer shape.
  • the fiber constituting the wall of the first protrusion has fiber orientation in the direction connecting the top of the first protrusion and the edge of the opening, and constitutes the wall of the small protrusion.
  • the fiber constituting the wall portion of the first protrusion and the fiber constituting the wall portion of the small protrusion have fiber orientation in the direction in which the wall portion stands up.
  • the fiber constituting the wall of the first protrusion and the fiber constituting the wall of the small protrusion have fiber orientation in the direction in which the wall rises over the entire circumference of the wall.
  • the fiber constituting the wall of the first protrusion and the fiber constituting the wall of the small protrusion are radial fibers in a direction from the top of the small protrusion toward the opening of the first protrusion.
  • the fiber constituting the wall portion of the second protrusion has fiber orientation in a direction connecting the top of the second protrusion and the edge of the opening thereof to any one of ⁇ 1> to ⁇ 9>.
  • the thickness of the small protrusion when the nonwoven fabric is pressed at a pressure of 0.05 kPa is 5% or more and 70% or less of the thickness of the nonwoven fabric when pressed at a pressure of 0.05 kPa.
  • ⁇ 1 The nonwoven fabric according to any one of ⁇ 10> to ⁇ 10>.
  • the thickness of the small protrusion when the ⁇ 12> nonwoven fabric is pressed with a pressure of 0.05 kPa is 10% or more and 70% or less of the thickness of the nonwoven fabric when pressed with a pressure of 0.05 kPa ⁇ 1.
  • the nonwoven fabric according to any one of ⁇ 11> to ⁇ 11>. ⁇ 13> The thickness of the small protrusion when the nonwoven fabric is pressurized at a pressure of 3.5 kPa is 70% or more of the thickness of the small protrusion when the nonwoven fabric is pressed at a pressure of 0.05 kPa. % Of the nonwoven fabric according to any one of ⁇ 1> to ⁇ 12>.
  • the thickness of the small protrusion when the nonwoven fabric is pressurized at a pressure of 3.5 kPa is 60% or more of the thickness of the small protrusion when the nonwoven fabric is pressed at a pressure of 0.05 kPa. % Of the nonwoven fabric according to any one of ⁇ 1> to ⁇ 12>.
  • the fiber web before fusing is disposed on a support having a large number of protrusions and holes set to a height of 0.3 mm or more and 5 mm or less, and then the fiber web is The fiber web is shaped into the shape of the support by blowing warm air with a wind speed set at 70 m / s or more and 180 m / s or less at a temperature higher by 0 ° C. or more and 70 ° C. or less than the melting point of the thermoplastic fiber constituting.
  • a method for producing a nonwoven fabric wherein the thermoplastic fibers are shaped so as to conform to each other, and thereafter, each of the thermoplastic fibers is fused by blowing hot air at a temperature of 0 ° C.
  • the height of the protrusion of the support is set to 0.5 mm or more and 3 mm or less, and the temperature of the hot air is within a range of 5 ° C. or more and 50 ° C. or less with respect to the melting point of the thermoplastic fiber constituting the fiber web.
  • the wind speed is set to 90 m / s or more and 130 m / s or less, and the hot air is set to a high temperature in the range of 5 ° C. or more and 50 ° C. or less with respect to the melting point of the thermoplastic fiber constituting the fiber web.
  • Example 1-5 In Example 1, a 2.4 dtex ⁇ 51 mm core-sheath composite fiber having a core of polyethylene terephthalate and a sheath of polyethylene was supplied from the card machine to the shaping device so that the basis weight was 30 g / m 2 .
  • the fiber web 50 was fixed on the support 30 having a large number of protrusions and air permeability.
  • the MD pitch in the plan view of the protrusion 31 of the support 30 was 8 mm
  • the CD pitch was 5 mm
  • the protrusion height was 0.7 mm.
  • the hole diameter of the hole 32 in the support body 30 was 2.8 mm.
  • the fiber web 50 on the support 30 is shaped by blowing warm air (temperature 130 ° C., wind speed 100 m / s), and the fiber web 50 is shaped along the protrusions 31 on the support 30.
  • the core-sheath structure fibers were fused by switching to hot air having a temperature of 145 ° C. and a wind speed of 5 m / s.
  • the line speed at this time was 100 m / min.
  • the nonwoven fabric 10 was produced by heat-sealing to obtain a nonwoven fabric test body of Example 1.
  • the thickness T of the nonwoven fabric 10 of Example 1 was 3.8 mm.
  • Example 2 the nonwoven fabric 10 was produced under the same conditions as in Example 1 except that the height of the protrusion 31 of the support 30 as a shaping condition was 2 mm.
  • the thickness T of the nonwoven fabric 10 of Example 2 was 3.8 mm.
  • Example 3 the nonwoven fabric 10 was produced under the same conditions as in Example 1 except that the height of the protrusion 31 of the support 30 as a shaping condition was 3 mm.
  • the nonwoven fabric 10 of Example 3 had a thickness T of 3.8 mm.
  • Example 4 the nonwoven fabric 10 was produced under the same conditions as in Example 2 except that the speed of warm air as the shaping condition was 120 m / s.
  • the thickness T of the nonwoven fabric 10 of Example 4 was 4.2 mm.
  • Example 5 the nonwoven fabric 10 was produced under the same conditions as in Example 3 except that the speed of warm air as the shaping condition was 120 m / s.
  • the thickness T of the nonwoven fabric 10 of Example 5 was 4.2 mm.
  • the reference example 1 produced the nonwoven fabric 10 on the same conditions as the said Example 3 except the wind speed of the warm air as shaping conditions having been 40 m / s. In Reference Example 1, no small protrusion was produced, and the thickness T of the nonwoven fabric 10 was 3.3 mm.
  • the reference example 2 produced the nonwoven fabric 10 on the same conditions as the said Example 1 except the height of the permite
  • Comparative Example 1 In Comparative Example 1, a nonwoven fabric test specimen was produced by the production method of Example 1 described in JP-A-2008-25081. Comparative Example 1 is a nonwoven fabric characterized by having a streak-like uneven shape and openings, and the thickness of the nonwoven fabric was 1.3 mm.
  • the cut surface of the non-woven fabric test specimen is expanded to a size (10 to 100 times) that can be measured with the KEYENCE digital microscope VHX-1000, and the weight becomes 0.05 kPa.
  • thickness TS of the small protrusion part 21 says the height from the part where the small protrusion part 21 stands
  • the measurement was performed 5 times, and on average, the thickness of the nonwoven fabric 10 of the sample was T, and the thickness of the small protrusion 21 was TS (mm). The value at this time was taken as the thickness at the time of 0.05 kPa pressurization.
  • the measurement method of the thickness (TSp) of the small protrusion 21 at the time of 3.5 kPa pressurization was performed in the same manner except that the weight was adjusted so that a pressure of 3.5 kPa was applied.
  • ⁇ Ratio of the thickness (TSp) of the small protrusion 21 at the time of 3.5 kPa pressurization to the thickness (TS) of the small protrusion 21 “The ratio of the thickness (TSp) of the small protrusion 21 at the time of 3.5 kPa pressurization to the thickness (TS) of the small protrusion 21” was expressed as (TSp / TS) ⁇ 100 (%).
  • the skin contact area ratio at the time of 0.05 kPa pressurization is measured by the following method.
  • a non-woven fabric specimen (10 cm ⁇ 10 cm) is uniformly blacked out with a black stamp ink (S-1) manufactured by Shachihata. Place this sheet on the copy paper with the ink surface down, place an acrylic plate (10 cm x 10 cm) on the sheet, and pressurize 0.05 kPa with the acrylic plate mass on it Place a weight to become and pressurize for 30 seconds. Then, quickly weigh, remove the acrylic plate and sheet, and allow the copy paper to air dry at room temperature. After drying, the area ratio of the black portion of the copy paper is determined using an image analyzer [manufactured by Nexus Corp., New Qube], and this value is defined as the skin contact area ratio at 0.05 kPa pressure.
  • the skin contact area ratio at the time of 3.5 kPa pressurization is the above 0.05 kPa addition except that the pressure is 3.5 kPa by the weight and weight of the acrylic plate in the method for measuring the skin contact area ratio at the time of 0.05 kPa pressurization. Measure in the same manner as the skin contact area ratio during pressure.
  • a method for measuring fiber orientation will be described below.
  • the sample was placed so that the z-axis direction in FIG. 1 was up and down, and an image taken from a direction perpendicular to the surface to be measured ( The magnification was adjusted so that 10 or more fibers could be measured (100 to 300 times), and the fibers were traced on a transparent PET sheet.
  • the said image was taken in in the personal computer and the said image was binarized using the NexusNew Inc. nextNewcube (stand-alone version) image processing software.
  • the binarized image is subjected to Fourier transform using Fiber Orientation Analysis 8.13 Single software manufactured by Nexus Co., Ltd., which is a fiber orientation analysis program, to obtain a power spectrum, and from an elliptical distribution map, An orientation angle and orientation strength were obtained.
  • the orientation angle indicates the angle at which the fibers are most oriented
  • the orientation strength indicates the strength at the orientation angle.
  • the value of the orientation angle closer to 90 ° indicates that the fibers are oriented from the opening portion 11H of the first projecting portion 11 toward the top portion 21T of the small projecting portion 21. If it is 130 °, it is determined that the fibers are oriented in the direction toward the top portion 21T of the small protrusion 21. Moreover, it represents that the direction of a fiber has gathered, so that the value of orientation strength is large. The case where the orientation strength is 1.05 or more is assumed to be oriented.
  • the orientation angle and orientation strength were measured at three locations, and the average of these measured values was taken as the orientation angle and orientation strength of the test specimen.
  • the measurement of the orientation angle and orientation strength of the wall portion was performed on the cross section in the CD direction.
  • the fiber orientation described above is a concept consisting of the orientation angle and orientation strength of the fiber.
  • the fiber orientation angle is a concept that indicates in which direction a plurality of fibers having various directions are oriented as a whole, and the shape of the fiber aggregate is quantified.
  • the orientation strength of the fiber is a concept indicating the amount of fibers exhibiting an orientation angle.
  • the orientation strength is less than 1.05 and is hardly oriented, and it can be said that the orientation strength is 1.05 or more.
  • the fiber orientation changes depending on the part.
  • the orientation strength is changed during the transition from a part having a certain orientation angle to a part having a different orientation angle (while the fiber is changing from a state where the orientation strength is strong in one direction to a part showing a strong strength in a different orientation). It has various states such as a weak state and a high state due to reorientation. Therefore, it is preferable that the orientation angle of the fiber is changed between the part showing a strong orientation angle and the part showing a strong orientation angle in another direction even if the orientation strength of the fiber is weak, and the orientation strength is high. Is more preferable.
  • An example of the orientation angle and orientation strength in the present embodiment is as follows.
  • the orientation angle is preferably 50 to 130 °, more preferably 70 to 110 ° with respect to the curved surface structure of the wall portion 22 of the small protrusion 21.
  • the orientation strength is preferably 1.05 or more, more preferably 1.20 or more.
  • the orientation angle with respect to the curved structure of the wall 13 of the first protrusion 11 is preferably 50 to 130 °, more preferably 70 to 110 °, and the orientation strength is preferably 1.05 or more, more preferably 1 10 or more. Since the orientation direction of the fibers of each of the wall portions 13 and 22 is the direction toward the top portion 21T of each small protruding portion 21, the cushioning property is exhibited.
  • the small protrusion 21 has higher orientation strength than the first protrusion 11.
  • the small protrusions 21 that are parts that come into contact with the wearer's skin are less likely to be crushed, and the area ratio of contact with the skin can be reduced even during high pressurization, giving a gentle touch to the skin.
  • the absorbent article 100 As an example of the absorbent article 100, the diaper for infants (made by Kao Corporation: Mary's Sarasara Air-Through (registered trademark) M size: made in 2011) is used to remove the surface sheet, and instead of the test piece of the nonwoven fabric 10 (hereinafter, An evaluation baby diaper obtained by fixing the periphery of the nonwoven fabric test body 110) was used. A pressure of 2 kPa was evenly applied on the nonwoven fabric test body 110, a cylinder having a cross-sectional area of 1000 mm 2 placed at the approximate center of the test body was applied, and artificial urine was injected therefrom.
  • Kao Corporation Mary's Sarasara Air-Through (registered trademark) M size: made in 2011
  • the artificial urine physiological saline was used, and a total of 160 g of artificial urine was infused 4 times at a rate of 40 g every 10 minutes. After standing for 10 minutes from the completion of the injection, the above cylinder and pressure were removed. And filter paper No. made by Advantech Co., Ltd. A weight adjusted so that a pressure of 3.5 kPa was applied to an absorbent sheet in which 10 sheets of 4A (100 mm ⁇ 100 mm, mass measurement W1) were stacked was placed on the nonwoven fabric specimen 110 around the injection point. After standing for 5 minutes, the weight was removed, the mass of the filter paper was measured (W2), and the liquid return amount was calculated as in the following equation.
  • Liquid return amount (g) Mass of filter paper after pressurization (W2)-Mass of first filter paper (W1)
  • Table 1 shows the measurement results and evaluation results for each of the above evaluation items.
  • test pieces of the nonwoven fabrics 10 of Examples 1 to 5 obtained good results in any evaluation items.
  • Comparative Example 1 has a skin contact area ratio of 65% at a pressure of 0.05 kPa, a skin contact area ratio of 93% at a pressure of 3.5 kPa, and a touch feeling at a low pressure and a high pressure. It cannot be said that it is excellent. Moreover, the amount of liquid return is as large as 1.3 g, and a sufficient effect is not exhibited.
  • each support 10 having the protrusion height described in Example 1 to Example 5 described above the surface area of contact with the skin can be reduced by performing a process of forming irregularities on the fiber web 50.
  • a shaped non-woven fabric that can give a gentle touch to the skin is excellent in shape retention of the nonwoven fabric even at the seating pressure of the wearer, has a small skin contact area even at high pressure, and can reduce the liquid return amount Can be manufactured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
PCT/JP2013/053895 2012-02-29 2013-02-18 不織布 WO2013129167A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR112014020031-9A BR112014020031B1 (pt) 2012-02-29 2013-02-18 tecido não tecido, artigo absorvente, fralda descartável e método de fabricação de um tecido não tecido
RU2014139060A RU2637404C2 (ru) 2012-02-29 2013-02-18 Нетканое полотно
CN201380004008.9A CN103958756B (zh) 2012-02-29 2013-02-18 无纺布、无纺布的制造方法、吸收性物品及一次性尿布

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012043274A JP5439524B2 (ja) 2012-02-29 2012-02-29 不織布
JP2012-043274 2012-02-29

Publications (1)

Publication Number Publication Date
WO2013129167A1 true WO2013129167A1 (ja) 2013-09-06

Family

ID=49082367

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/053895 WO2013129167A1 (ja) 2012-02-29 2013-02-18 不織布

Country Status (6)

Country Link
JP (1) JP5439524B2 (enrdf_load_stackoverflow)
CN (1) CN103958756B (enrdf_load_stackoverflow)
BR (1) BR112014020031B1 (enrdf_load_stackoverflow)
MY (1) MY165592A (enrdf_load_stackoverflow)
RU (1) RU2637404C2 (enrdf_load_stackoverflow)
WO (1) WO2013129167A1 (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015134359A1 (en) * 2014-03-06 2015-09-11 The Procter & Gamble Company Three-dimensional substrates
CN105636566A (zh) * 2014-12-26 2016-06-01 尤妮佳股份有限公司 吸收性物品用无纺布
KR20180013899A (ko) * 2015-05-29 2018-02-07 유니챰 가부시키가이샤 흡수성 물품용 부직포
US10195092B2 (en) 2014-03-06 2019-02-05 The Procter & Gamble Company Multi-component topsheets
US10285874B2 (en) 2014-03-06 2019-05-14 The Procter & Gamble Company Multi-component topsheets
US10973702B2 (en) 2015-08-26 2021-04-13 The Procter & Gamble Company Absorbent articles having three dimensional substrates and indicia
US11202723B2 (en) 2016-07-01 2021-12-21 The Procter & Gamble Company Absorbent articles with improved topsheet dryness

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6391459B2 (ja) * 2014-12-19 2018-09-19 花王株式会社 吸収性物品
JP6566657B2 (ja) * 2015-02-18 2019-08-28 花王株式会社 積層不織布
CN110366616B (zh) * 2017-02-28 2022-01-04 东丽株式会社 层叠不织布及面膜
JP7050128B2 (ja) 2020-08-25 2022-04-07 花王株式会社 吸収性物品
JP7672770B2 (ja) * 2021-03-23 2025-05-08 大王製紙株式会社 吸収性物品及び当該吸収性物品に使用する複合シートの製造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004113489A (ja) * 2002-09-26 2004-04-15 Asahi Kasei Fibers Corp 柔軟な衛生材料用不織布及び使い捨て衛生材料
JP2011127242A (ja) * 2009-12-16 2011-06-30 Kao Corp 不織布の製造方法及び製造装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5242632A (en) * 1989-07-18 1993-09-07 Mitsui Petrochemical Industries, Ltd. Nonwoven fabric and a method of manufacturing the same
US5674591A (en) * 1994-09-16 1997-10-07 James; William A. Nonwoven fabrics having raised portions
US8173858B2 (en) * 2006-11-22 2012-05-08 Uni-Charm Corporation Absorptive article and method of producing the same
JP5604041B2 (ja) * 2007-12-10 2014-10-08 花王株式会社 伸縮性複合シート
JP5074174B2 (ja) * 2007-12-25 2012-11-14 花王株式会社 立体賦形不織布の製造方法
JP5112047B2 (ja) * 2007-12-28 2013-01-09 花王株式会社 吸収性物品の表面シート
RU2500844C2 (ru) * 2008-12-25 2013-12-10 Као Корпорейшн Нетканая ткань и способ ее получения
WO2012086730A1 (ja) * 2010-12-24 2012-06-28 花王株式会社 不織布及びこれを用いた吸収性物品

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004113489A (ja) * 2002-09-26 2004-04-15 Asahi Kasei Fibers Corp 柔軟な衛生材料用不織布及び使い捨て衛生材料
JP2011127242A (ja) * 2009-12-16 2011-06-30 Kao Corp 不織布の製造方法及び製造装置

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11033440B2 (en) 2014-03-06 2021-06-15 The Procter & Gamble Company Three-dimensional substrates
JP2017510397A (ja) * 2014-03-06 2017-04-13 ザ プロクター アンド ギャンブル カンパニー ３次元基材
US10195092B2 (en) 2014-03-06 2019-02-05 The Procter & Gamble Company Multi-component topsheets
US10206826B2 (en) 2014-03-06 2019-02-19 The Procter & Gamble Company Three-dimensional substrates
US10285874B2 (en) 2014-03-06 2019-05-14 The Procter & Gamble Company Multi-component topsheets
WO2015134359A1 (en) * 2014-03-06 2015-09-11 The Procter & Gamble Company Three-dimensional substrates
US12076220B2 (en) 2014-03-06 2024-09-03 The Procter & Gamble Company Three-dimensional substrates
CN105636566A (zh) * 2014-12-26 2016-06-01 尤妮佳股份有限公司 吸收性物品用无纺布
KR20180013899A (ko) * 2015-05-29 2018-02-07 유니챰 가부시키가이샤 흡수성 물품용 부직포
EP3245991A4 (en) * 2015-05-29 2018-03-07 Unicharm Corporation Non-woven fabric for absorbent article
KR102462589B1 (ko) 2015-05-29 2022-11-02 유니챰 가부시키가이샤 흡수성 물품용 부직포
US10973702B2 (en) 2015-08-26 2021-04-13 The Procter & Gamble Company Absorbent articles having three dimensional substrates and indicia
US11202723B2 (en) 2016-07-01 2021-12-21 The Procter & Gamble Company Absorbent articles with improved topsheet dryness

Also Published As

Publication number Publication date
JP2013177715A (ja) 2013-09-09
RU2637404C2 (ru) 2017-12-04
BR112014020031B1 (pt) 2021-02-02
CN103958756B (zh) 2017-06-23
RU2014139060A (ru) 2016-04-20
JP5439524B2 (ja) 2014-03-12
BR112014020031A2 (enrdf_load_stackoverflow) 2017-06-20
BR112014020031A8 (pt) 2017-07-11
MY165592A (en) 2018-04-16
CN103958756A (zh) 2014-07-30

Similar Documents

Publication Publication Date Title
JP5439524B2 (ja) 不織布
CN204112013U (zh) 无纺布及使用该无纺布的吸收性物品、一次性尿布
JP6235012B2 (ja) より高い触覚的柔軟性特性を備えるおむつ構造
JP6273101B2 (ja) 不織布
WO2012086730A1 (ja) 不織布及びこれを用いた吸収性物品
JP6047428B2 (ja) 不織布
JP5674454B2 (ja) 不織布及びこれを用いた吸収性物品
JP6140388B2 (ja) シート及びこれを用いた吸収性物品
CN103339309B (zh) 无纺布和使用该无纺布的吸收性物品
JP5921866B2 (ja) 不織布
JP5764323B2 (ja) 不織布及びこれを用いた吸収性物品
JP5985258B2 (ja) 不織布
JP5449056B2 (ja) 吸収性物品の表面シート
JP6468803B2 (ja) 積層不織布
JP5956206B2 (ja) 不織布およびその製造方法
JP2017221274A (ja) 吸収体
JP2017221275A (ja) 吸収体
JP2017148141A (ja) 吸収性物品
JP5956132B2 (ja) 不織布
JP6233778B2 (ja) 不織布
JP5912907B2 (ja) 積層シート
JP2023075941A (ja) 吸収性物品

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13755480

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2014/10169

Country of ref document: TR

WWE Wipo information: entry into national phase

Ref document number: 2014139060

Country of ref document: RU

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112014020031

Country of ref document: BR

122 Ep: pct application non-entry in european phase

Ref document number: 13755480

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 112014020031

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20140813