WO2007148545A1 - 不織布 - Google Patents
不織布 Download PDFInfo
- Publication number
- WO2007148545A1 WO2007148545A1 PCT/JP2007/061601 JP2007061601W WO2007148545A1 WO 2007148545 A1 WO2007148545 A1 WO 2007148545A1 JP 2007061601 W JP2007061601 W JP 2007061601W WO 2007148545 A1 WO2007148545 A1 WO 2007148545A1
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- WO
- WIPO (PCT)
- Prior art keywords
- opening
- side edge
- nonwoven fabric
- fiber
- fibers
- Prior art date
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Classifications
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- 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
- D04H1/72—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 the fibres being randomly arranged
-
- 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
- D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/492—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
- D04H1/495—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet for formation of patterns, e.g. drilling or rearrangement
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- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
- Y10T442/184—Nonwoven scrim
Definitions
- the present invention relates to a nonwoven fabric and a nonwoven fabric manufacturing method.
- non-woven fabrics are used in a wide range of fields such as sanitary products such as paper diapers and sanitary napkins, cleaning products such as wipers, and medical products such as masks.
- sanitary products such as paper diapers and sanitary napkins
- cleaning products such as wipers
- medical products such as masks.
- non-woven fabrics are used in various different fields, but when actually used in products in each field, they are manufactured to have properties and structures suitable for the use of each product. It is necessary.
- the nonwoven fabric is produced, for example, by forming a fiber layer (fiber web) by a dry method or a wet method, and bonding fibers in the fiber layer by a chemical bond method or a thermal bond method.
- the step of bonding fibers for forming a fiber layer includes a step of applying a physical force from the outside to the fiber layer, such as a method of repeatedly piercing a large number of needles into this fiber layer, a method of jetting water flow, etc. There is also a method.
- a nonwoven fabric provided with openings has also been proposed.
- a non-woven fabric is sandwiched between a pressing die having a protrusion such as a needle protruding outward and a support on the receiving side that receives the protrusion, and the protruding portion penetrates the non-woven fabric.
- a method of opening a nonwoven fabric three-dimensionally is disclosed.
- the conventional nonwoven fabric has a problem that, for example, the fibers in the wall portion of the convex portion and the entire periphery of the opening are compressed to increase the fiber density, and further, heat is applied to form a film when the nonwoven fabric is formed.
- a non-woven fabric formed into a film with a high fiber density around the wall of the convex portion and the entire periphery of the opening does not easily collapse even when an external pressure S is applied.
- One of the reasons is that the non-woven fabric piece that has been broken with a needle or the like is less likely to fall.
- the liquid does not easily permeate downward.
- the liquid stays on the nonwoven fabric and soils the wearer's skin or the like or gives an uncomfortable feeling.
- the fiber density in the convex portions and the concave portions is not extremely increased, and only a part of the peripheral edge of the openings is densified. It aims at providing the nonwoven fabric adjusted in this way.
- the inventors of the present invention have disclosed a method of opening and closing a fiber web supported from the lower surface side by a predetermined net-like support member by blowing a gas from the upper surface side to move the fibers constituting the fiber web. It has been found that only a part of the periphery of the opening can be densified, and the present invention has been completed.
- the nonwoven fabric includes a plurality of openings formed along the first direction and side edges of the openings as viewed from the second direction orthogonal to the first direction.
- One side edge provided as one side region in the vicinity, and the other side edge provided as the other region in the vicinity of the side edge of the opening portion that is separated from the one side edge portion by the opening, And the one side edge portion has a higher fiber density than the other side edge portion.
- the nonwoven fabric according to the first embodiment wherein the one side edge portion has a higher fiber basis weight than the other side edge portion.
- the nonwoven fabric according to the first embodiment or the second embodiment, wherein the first opening and the second adjacent to each other in the array of the plurality of openings.
- the nonwoven fabric according to the third embodiment, wherein the one side edge portion in the second opening contains fibers oriented in the first direction.
- the rate is higher than the content of fibers oriented in the second direction.
- the nonwoven fabric according to any one of the third to fifth embodiments, wherein the first connecting portion is the other of the first openings.
- the fiber basis weight is higher than that of the side edge.
- the nonwoven fabric according to any one of the third to sixth embodiments, wherein the second opening and the second opening in the array of the plurality of openings Includes a third opening adjacent to the first opening on the opposite side, and a second connecting portion made of fibers between the first opening and the third opening, and the second connecting portion includes: The fiber density is higher than that of the other side edge in the first opening.
- the nonwoven fabric according to the seventh embodiment wherein the one side edge in the second opening and the one side edge in the first opening. Are located opposite to each other in the second direction, and the one side edge in the third opening and the one side edge in the first opening are mutually in the second direction.
- the one side edge in the second opening, the first connecting portion, and the one in the first opening are located on the opposite side and having a higher fiber density than the other side edge.
- the side edge portion, the second connecting portion, and the one side edge portion of the third opening portion are continuous in a serpentine shape.
- the nonwoven fabric according to the seventh embodiment or the eighth embodiment wherein the fiber density of the first connecting portion is 0.05 gZcm 3 or more, 1.1 or more times the fiber density of the other side edge in at least one of the first opening and the second opening, and the fiber density of the second connecting part is 0.5 g / cm 3 or more, and 1.1 times the fiber density of the other side edge portion in at least one of the first opening and the second opening That's it.
- the nonwoven fabric according to any one of the seventh to ninth embodiments, wherein the one side edge portion in the third opening portion has a front end.
- the content of fibers oriented in the first direction is higher than the content of fibers oriented in the second direction.
- the nonwoven fabric according to any one of the seventh to tenth embodiments, wherein the second connecting portion is a fiber oriented in the second direction. Is higher than the content of fibers oriented in the first direction.
- the nonwoven fabric according to any one of the seventh to eleventh embodiments, wherein the second connecting portion is the other in the first opening. Fiber basis weight is higher than that of the side edge.
- the fiber basis weight of the one side edge part in the second opening part and the fiber basis weight of the one side edge part in the third opening part are 15 to 250 g / m 2 , respectively.
- the nonwoven fabric according to any one of the first to thirteenth embodiments, extending in the first direction on one surface side of the nonwoven fabric. And a plurality of convex portions formed adjacent to each of the plurality of groove portions and extending in the first direction on the one surface side, and the plurality of openings. The portion is formed along each of the plurality of groove portions.
- the nonwoven fabric according to any one of the first to fourteenth embodiments, wherein each of the plurality of openings has a substantially circular shape or a substantially elliptical shape. It is.
- the nonwoven fabric includes a density change region in which the density of fibers is changed continuously or intermittently, and the density change region is a process in a machine at the time of manufacturing the nonwoven fabric.
- a plurality of high-density regions extending along a predetermined first direction that is the same as the flow direction.
- the high-density region includes a plurality of low-density, U-shaped high-density regions on one side when viewed from the second direction orthogonal to the first direction.
- the "U-shaped” includes a “reverse U-shaped” form. That is, the “U-shaped high-density area” includes “an inverted U-shaped high-density area”.
- the high-density region is a meandering high-density region extending in a meandering manner in the first direction.
- a non-woven fabric according to any one of the first to eighteenth embodiments, wherein the support member has a portion through which a fluid can pass.
- the fibers constituting the fiber assembly supported from one surface side are made to have a degree of freedom, and a fluid mainly composed of gas is sprayed on the fiber assembly, so that the fiber assembly It is a nonwoven fabric formed by moving some fibers.
- the fiber density in the convex portions and the concave portions is not extremely high, and only a partial region in the peripheral edge of the openings is dense. It is possible to provide a non-woven fabric that is adjusted to be
- FIG. 1A is a plan view of a nonwoven fabric according to a first embodiment of the present invention.
- FIG. 1B is a bottom view of the nonwoven fabric according to the first embodiment of the present invention.
- FIG. 2 is a perspective sectional view of the nonwoven fabric according to the first embodiment.
- FIG. 3A is a plan view of a net-like support member according to the first embodiment.
- FIG. 3B is a bottom view of the mesh support member according to the first embodiment.
- FIG. 4 is a perspective view of a fiber web.
- FIG. 5 is a side view illustrating the nonwoven fabric manufacturing apparatus according to the first embodiment.
- FIG. 6 is a plan view for explaining the nonwoven fabric manufacturing apparatus of FIG. 5.
- FIG. 7 is an enlarged perspective view of a region Z in FIG.
- FIG. 8 is a bottom view of the ejection part in FIG.
- FIG. 9A is a plan view of a nonwoven fabric according to a second embodiment.
- FIG. 9B is a bottom view of the nonwoven fabric according to the second embodiment.
- FIG. 10 is a perspective sectional view of a nonwoven fabric according to a second embodiment.
- FIG. 11A is a plan view of a nonwoven fabric according to a third embodiment.
- FIG. 11B is a cross-sectional view of the nonwoven fabric according to the third embodiment.
- FIG. 12A is a perspective sectional view showing an example of an application example of a nonwoven fabric according to the present invention.
- FIG. 12B is an enlarged view of a part of FIG. 12A.
- FIG. 13A is a perspective view showing an example of application of the nonwoven fabric according to the present invention.
- FIG. 13B is an enlarged view of a part of FIG. 13A.
- FIG. 14 is a view showing an example of an application example of a nonwoven fabric in the present invention.
- FIG. 15A is a perspective view showing an example of application of the nonwoven fabric according to the present invention.
- FIG. 15B is an enlarged view of a part of FIG. 15A.
- FIGS. 1A and IB are a plan view and a bottom view of the nonwoven fabric according to the first embodiment.
- FIG. 2 is a perspective sectional view of the nonwoven fabric according to the first embodiment.
- 3A and 3B are a plan view and a bottom view of the net-like support member in the first embodiment.
- FIG. 4 is a perspective view of the fiber web.
- FIG. 5 is a side view illustrating the nonwoven fabric manufacturing apparatus according to the first embodiment.
- FIG. 6 is a plan view for explaining the nonwoven fabric manufacturing apparatus of FIG.
- FIG. 7 is an enlarged perspective view of region Z in FIG.
- FIG. 8 is a bottom view of the ejection part in FIG.
- FIG. 9A and 9B are a plan view and a bottom view of the nonwoven fabric according to the second embodiment.
- FIG. 10 is a perspective sectional view of the nonwoven fabric according to the second embodiment.
- FIG. 11A and FIG. 11B are a plan view and a cross-sectional view of the nonwoven fabric according to the third embodiment.
- FIG. 12A and FIG. 12B are diagrams showing examples of application examples of the nonwoven fabric in the present invention.
- FIG. 13A and FIG. 13B are diagrams showing an example of an application example of the nonwoven fabric in the present invention.
- FIG. 14 is a diagram showing an example of an application example of the nonwoven fabric in the present invention.
- FIG. 15A and FIG. 15B are diagrams showing an example of an application example of the nonwoven fabric in the present invention.
- the nonwoven fabric of the present invention is generally realized as follows.
- a predetermined reticulated support member having a portion through which a fluid can pass is prepared.
- One side of the fiber assembly is supported by the net-like support member and is formed into a substantially sheet shape.
- the fiber assembly is mainly subjected to the other surface side.
- a fluid made of gas is sprayed on the surface.
- the movement of the fibers is controlled, and a plurality of openings are formed along the first direction, for example, the longitudinal direction (LD) which is the longitudinal direction.
- Each of the plurality of openings has, for example, the following characteristics.
- the width direction (WD) is a direction in which the nonwoven fabric or the fiber web is sent through the nonwoven fabric manufacturing machine.
- the width direction (WD) is a direction perpendicular to the longitudinal direction (LD).
- the groove portions la and lb are examples of the groove portion 1.
- the convex portions 2 a and 2 b are an example of the convex portion 2.
- a second opening 3b adjacent to the predetermined first opening 3a in the longitudinal direction (LD) (hereinafter, the first opening 3a and the second opening 3b are simply referred to as openings 3a and 3b). Is an example of a plurality of openings 3.
- the nonwoven fabric 116 in the present embodiment is a nonwoven fabric in which a plurality of units are formed in parallel with the groove portions 1a and lb as one unit. That is, the nonwoven fabric 116 has a plurality of groove portions la and lb formed on one surface side so as to extend in the longitudinal (longitudinal) direction (LD). Further, convex portions 2a and 2b are alternately formed in parallel at substantially equal intervals between the groove portion la and the groove portion lb.
- the nonwoven fabric 116 is a nonwoven fabric in which a plurality of openings 3a and 3b are alternately formed at substantially equal intervals in the longitudinal direction (LD) which is the longitudinal direction.
- the plurality of openings 3a and 3b are alternately formed continuously at substantially equal intervals. The force does not need to be formed continuously at substantially equal intervals.
- the grooves la and lb are formed by performing the following process on the fiber web 100 shown in FIG. 4 which is a fiber assembly.
- the fiber web 100 is supported from the lower surface side by the mesh-like support member 300 shown in FIG. 3, and the fiber web is sprayed from the upper surface side.
- the fibers 101 constituting 100 are moved. Thereby, the groove portions la and lb are formed.
- the movement of the fibers 101 constituting the fiber web 100 is controlled by a fluid mainly composed of gas sprayed from the upper surface side of the fiber web 100.
- the convex portions 2a and 2b are regions in the fiber web 100 where a fluid mainly composed of gas is not sprayed, and the regions protruding relatively by forming the groove portions la and lb. It became a region.
- the reticulated support member 300 includes a wire 301 disposed in the longitudinal direction (LD) and a wire 302 disposed in the width direction WD which is the lateral direction.
- the wire 301 straddles the wire 302 in the thickness direction of the mesh support member 300
- the wire 302 straddles the wire 301 in the thickness direction of the mesh support member 300. It is woven in a zigzag shape.
- the zigzag shape of the wire 302 is woven alternately in the longitudinal direction (LD).
- the fiber web 100 which is a fiber assembly
- the spraying position on the fiber web 100 is preferably approximately the center between the wires 301 arranged in the longitudinal direction (LD).
- the fiber web 100 disposed on the wire 302 between the wires 301 moves to form the openings 3a and 3b.
- the openings 3a and 3b are holes that penetrate through the nonwoven fabric 116 that is formed in the groove 1 at a predetermined interval, and are substantially circular or elliptical.
- the openings 3a and 3b are forces formed at substantially equal intervals, not limited to this, and may be formed at different intervals.
- the fiber web 100 is moved to the lower side of the inclined wire 302 disposed in the width direction (WD), so that one of the side edges 14 and 16 in each of the openings 3a and 3b is formed.
- Each is formed. That is, one side edge portion 14 or 16 is provided as one region in the vicinity of the side edge of the opening 3a or 3b in view of the width direction (WD) force.
- the other side edge portions 15 and 17 on the opposite side are formed with respect to the one side edge portions 14 and 16 in the openings 3a and 3b, respectively. That is, the other side edge 15 or 17 is provided as the other region in the vicinity of the side edge of the opening 3a or 3b with the opening 3a or 3b therebetween. Opening 3a, 3
- the fiber web 100 is hardly moved to each of the other side edges 15 and 17 in b.
- one side edge portions 14 and 16 in the openings 3a and 3b are formed in the convex portions 2a and 2b, respectively.
- one side edge 16 in the opening 3b is a side edge opposite to the one side edge 14 in the opening 3a in the width direction (WD).
- the other side edges 15 and 17 in the openings 3a and 3b are formed in the convex portions 2b and 2a, respectively.
- the other side edge portions 15 and 17 are regions where the fibers 101 constituting the fiber web 100 are not moved as compared with the one side edge portions 14 and 16.
- the one side edge portions 14 and 16 and the other side edge portions 15 and 17 are the force S formed on the convex portions 2a and 2b, not limited to this, and the groove portion la , lb may be formed.
- the first connecting portion 4a (hereinafter, "first connecting portion 4a" may be simply referred to as the connecting portion 4a) between the first opening 3a and the second opening 3b. ). That is, the first connecting portion 4a formed so as to connect the adjacent convex portions 2a and 2b is formed between the adjacent opening 3a and the opening 3b in the groove la or the groove lb. As will be described later, the first connecting portion 4a is a region having a higher fiber density and a higher basis weight than the other side edge 15 in the first opening 3a.
- the height of each of the convex portions 2a and 2b of the nonwoven fabric 116 in this embodiment in the thickness direction of the nonwoven fabric 116 may be 0.3 to 15 mm, preferably 0.5 to 5 mm. .
- the length in the width direction (WD) of the nonwoven fabric 116 of each of the convex portions 2a and 2b is 0.5 force, 30 mm, preferably 1.0 to 10 mm. Further, the distance between the apexes of the adjacent convex portions 2a and 2b can be exemplified by 0.5 force 30 mm, preferably 3 to 10 mm.
- the height in the thickness direction of the nonwoven fabric 116 in each of the groove portions la and lb is 90% or less, preferably 0 to 50%, more preferably 1 force of each of the heights of the convex portions 2a and 2b. It is 20% high.
- Examples of the length in the width direction (WD) of the nonwoven fabric 116 in each of the groove portions la and lb are 0.1 force, 30 mm, preferably 0.5 force and 10 mm.
- the distance between the matching grooves la, lb is 0.5 to 20 mm, preferably 3 to 10 mm.
- the height in the thickness direction of 0% indicates that the region is the openings 3a and 3b.
- the nonwoven fabric 116 when used as a surface sheet of an absorbent article, it is possible to prevent the surface from spreading widely even when a large amount of predetermined liquid is excreted. Suitable groove parts la and lb can be formed. Further, even if the convex portions 2a and 2b are crushed when excessive external pressure S is applied, it becomes easy to maintain the space by the groove portions la and lb, and the predetermined pressure is applied in the state where external pressure S is applied. Even when liquid is excreted, it can be made difficult to spread widely on the surface.
- the nonwoven fabric 116 has an advantage that it is difficult to reattach to the skin widely.
- the method of measuring the height, pitch, and width of the grooves la, lb or the convex portions 2a, 2b is as follows.
- the non-woven fabric 116 is placed on a table in a non-pressurized state, and the cross-sectional photograph or cross-sectional image of the non-woven fabric 116 is measured with a micro scope.
- the non-woven fabric 116 serving as a sump nore is cut so as to pass through the convex portions 2a and 2b and the groove portions la and lb.
- the upward force from the lowest position of the nonwoven fabric 116 (that is, the surface of the table) is directed to the convex portions 2a and 2b and the groove portions la and lb. Measure with the highest position as the height.
- the pitch of the convex portions 2a and 2b is measured by measuring the distance between the center positions of the convex portions 2a and 2b.
- the pitch of the groove portions la and lb is measured by measuring the distance between the center positions of the groove portions la and lb.
- the cross-sectional shape of the convex portions 2a, 2b is not particularly limited.
- a dome shape, a trapezoid shape, a triangular shape, an ⁇ shape, a square shape, and the like can be given.
- the vicinity of the top surfaces and the side surfaces of the convex portions 2a, 2b are preferably curved surfaces.
- the bottom of the convex portions 2a and 2b can be maintained. It is preferable that the width becomes narrower toward the top surface.
- a curved surface (curved surface) such as a substantially dome shape can be mentioned.
- the length of the nonwoven fabric 116 in each of the openings 3a and 3b in the longitudinal direction (LD) (or the length in the width direction (WD)) is 0.1 to 5 mm, preferably 0.5 force 4 mm.
- Illustrative power S The pitch between the opening 3a and the opening 3b adjacent to each other via the first connecting portion 4a can be exemplified by 0.5 force, 30 mm, preferably 1 to 10 mm.
- the height in the thickness direction of the nonwoven fabric 116 in the first connecting portion 4a is equal to or less than the height in the thickness direction of the nonwoven fabric 1 16 in the convex portions 2a and 2b, preferably 20 force 100%, more preferably 40 to 70%.
- the length in the longitudinal direction which is the longitudinal direction and the length in the width direction which is the lateral direction of the nonwoven fabric 116 of the first connecting portion 4a are both 0.1 to 5 mm, preferably 0.5. A force of 4mm can be illustrated.
- the pitch between the apexes of the adjacent first connecting portions 4a is 0.5 to 30 mm, preferably 1 to 10 mm.
- the cross-sectional shape of the nonwoven fabric 116 in the longitudinal direction is a substantially square shape.
- the cross-sectional shape in the longitudinal direction of the nonwoven fabric 116 of the first connecting portion 4a is not limited to a substantially square shape, and is not particularly limited to a dome shape, a trapezoidal shape, a triangular shape, an ⁇ shape, or the like.
- it is preferably a substantially rectangular shape.
- the top surface of the first connecting portion 4a is preferably a flat surface or a curved surface so that the first connecting portion 4a does not come into contact with the skin or the like under an excessive external pressure and does not give a sense of foreign matter.
- the nonwoven fabric 116 includes regions having different contents of longitudinally oriented fibers.
- the different regions are, for example, the convex portions 2a including the groove portions la and lb, one side edge portions 14 and 16 in the openings 3a and 3b, and the other side edge portions 15 and 17 in the openings 3a and 3b. , 2b etc.
- the fiber 101 is oriented in the longitudinal direction (longitudinal direction) (LD) which is the first direction, so that the fiber 101 is within a range of 145 to +45 degrees with respect to the longitudinal direction (LD). It is oriented in the direction.
- the longitudinal direction (LD) the nonwoven fabric or fiber web is fed through a nonwoven fabric production machine.
- Direction (MD) A fiber oriented in the longitudinal direction (LD) is called a longitudinally oriented fiber.
- the fiber 101 is oriented in the width direction (lateral direction) WD, which is the second direction, that the fiber 101 is in the second direction, here the direction perpendicular to the first direction (LD) (CD). Orientation within the range of 145 degrees to +45 degrees with respect to a given width direction (WD). Fibers oriented in the width direction (WD) are called transversely oriented fibers.
- the convex portions 2a and 2b are forces that are regions including one side edge portions 14 and 16 of the openings 3a and 3b and the other side edge portions 15 and 17 of the openings 3a and 3b. Except for one side edge part 14 and 16 in the opening parts 3a and 3b, the fibers 101 in the convex parts 2a and 2b are formed as a whole in the longitudinal direction (LD) and width direction of the nonwoven fabric 116 of the convex parts 2a and 2b. This is an area oriented in a direction substantially evenly along (WD). In other words, except for the one side edge portions 14 and 16 in the openings 3a and 3b, it is preferable that the convex portions 2a and 2b have moderately mixed longitudinally oriented fibers and laterally oriented fibers. .
- the fibers 101 constituting one of the side edges 14 and 16 in the openings 3a and 3b are oriented in a direction along the longitudinal direction (LD) of the nonwoven fabric 116 of each of the convex portions 2a and 2b.
- LD longitudinal direction
- the fibers 101 in the convex portions 2a, 2b are oriented in the longitudinal direction (LD) as compared to the orientation of the fibers 101 in the convex portions 2a, 2b. That is, it can be said that the number of longitudinally oriented fibers in the fibers 101 at one side edge 14 in the first opening 3a is larger than the number of laterally oriented fibers.
- the number of longitudinally oriented fibers in the fibers 101 in the side edge portion 16 on one side of the second opening 3b is larger than the number of laterally oriented fibers.
- the content of the longitudinally oriented fibers in one of the side edges 14 and 16 in the openings 3a and 3b can be exemplified as 55% force 100%, more preferably 60 to 100%. That is, in one side edge portion 14 in the second opening 3b, the content of the vertically oriented fibers is higher than the content of the horizontally oriented fibers.
- the groove portions la and lb are regions in which the openings 3a and 3b and the first connecting portion 4a are formed by directly jetting a fluid mainly made of gas (for example, hot air).
- a fluid mainly made of gas for example, hot air.
- the fibers 101 (longitudinal oriented fibers) oriented in the longitudinal direction (LD) are sprayed toward the side edges 14 and 16 of the openings 3a and 3b.
- the fibers 101 (laterally oriented fibers) oriented in the width direction (WD) are sprayed toward the connecting portion 4a.
- the fibers 101 in the first connecting portions 4a of the grooves la and 1b are oriented in the width direction (WD) as a whole.
- the content of longitudinally oriented fibers in the nonwoven fabric 116 is the lowest.
- the first connecting portion 4a has the highest content of laterally oriented fibers. That is, in the first connecting portion 4a, the content rate of the horizontally oriented fibers is higher than the content rate of the vertically oriented fibers.
- the content of the laterally oriented fibers in the first connecting portion 4a is 55 to 100%, preferably 60 to 100%.
- the content of the horizontally oriented fibers is lower than 55%, it is difficult to increase the strength of the nonwoven fabric in the width direction (WD) because the basis weight of the groove portions la and lb is low as described later.
- the non-woven fabric 116 is used as a surface sheet of an absorbent article, there is a risk that the absorbent article is distorted in the width direction or broken due to friction with the body during use.
- the fiber orientation was measured using a digital microscope VHX-100 manufactured by Keyence Corporation, and the following measurement method was used.
- the sample is set so that its longitudinal direction is an appropriate direction on the observation table.
- the lens is focused on the foremost fiber of the sample, except for the fiber that has irregularly jumped to the front, and (3) the 3D image of the Sampnore is created on the PC screen by setting the shooting depth (depth). To do.
- (4) convert the 3D image to a 2D image, and (5) draw multiple parallel lines on the screen that equally divide the longitudinal direction in the measurement range.
- (6) In each cell subdivided by drawing parallel lines, observe whether the fiber orientation is in the longitudinal direction (LD) (first direction) or in the width direction (WD) (second direction).
- LD longitudinal direction
- WD width direction
- the fiber density of the convex portions 2a and 2b is lower than 0.005 gZcm 3 , the convex portions 2a and 2b are easily crushed by the weight of the liquid contained in the convex portions 2a and 2b and the external pressure. The liquid once absorbed under pressure In some cases, it becomes easier to reverse.
- the predetermined liquid brought to the convex portions 2a and 2b moves downward, and the convex portions In some cases, liquid may stay in the shape parts 2a and 2b, giving the user a feeling of moisture.
- the fiber density of one of the side edges 14 and 16 in the openings 3a and 3b is 1.1 times or more of the fiber density of the other side edges 15 and 17.
- the fiber density of the first connecting portion 4a is 0.05 g / cm 3 or more, preferably 0.:! To 0.5 gZcm 3 . If the fiber density of the first connecting part 4a is less than 0.05 gZcm 3, the first connecting part 4a is also damaged when excessive external pressure is applied and the convex parts 2a, 2b are crushed. Similarly, it may be crushed. On the other hand, when the fiber density of the first connecting part 4a is larger than 0.5 g / cm 3 , the predetermined liquid dropped into the grooves la and lb accumulates in the first connecting part 4a, and an excessive external pressure is generated. When applied to the nonwoven fabric 116 and in direct contact with the skin, it may give a moist feeling.
- one side edge 14 in the first opening 3a, one side edge 16 in the second opening 3b, and the first connecting portion 4a are at least the opening 3a. It can be said that this is a high-density region in which the fiber density is higher than that of the other side edge 15 and the other side edge 17 of the opening 3b.
- one side edge 14 in the opening 3a and one side edge 16 in the opening 3b are defined as vertical high-density regions extending in the longitudinal direction (longitudinal direction) (LD).
- LD longitudinal direction
- the plurality of openings 3a, 3b are alternately and intermittently formed in the grooves la, lb, one side edge 14 in the opening 3a, which is the vertical high-density region, and the contact opening 3b
- One side edge portion 16 is also alternately and intermittently formed along the longitudinal direction (LD). Therefore, the nonwoven fabric 116 includes a plurality of longitudinal high-density regions extending in the longitudinal direction (LD).
- the nonwoven fabric 116 has a space area ratio force measured from the surface side where the groove portions la, 1b and the convex portions 2a, 2b are formed on one surface side in the thickness direction of the nonwoven fabric 116. It is formed so as to be lower than the space area ratio measured from the other surface side which is the surface opposite to the surface on which the groove portions la and lb and the convex portions 2a and 2b are formed in the thickness direction.
- the fiber web 100 conveyed on the reticulated support member 300 is mainly composed of fibers 101 by gravity. There is a tendency that the distance between the fibers near the surface on the side opposite to the surface on which the fluid made of gas is sprayed is narrowed, and the distance between the fibers is narrowed. On the other hand, the distance between the fibers tends to increase due to the force S approaching the surface on which the fluid mainly composed of gas is sprayed.
- the fluid 101 which is mainly composed of gas, is sprayed so that the fibers 101 on the side close to the mesh support member 300 are pressed against the mesh support member 300 so as to be parallel to the plane of the mesh support member 300.
- Some are suitable.
- the distance between the fibers is further reduced, and the fibers are more likely to be densely packed.
- the fibers are heat-sealed by heat treatment such as oven treatment, so that the degree of freedom of the fibers 101 is reduced and the space area ratio between the fibers is reduced.
- the fibers are not excessively crushed from the surface on the mesh-like support member 300 side toward the surface on which the fluid mainly composed of gas is blown, and in the convex portions 2a and 2b.
- the fibers 101 are directed so that the fibers 101 are partially perpendicular to the mesh-like support member 300 as the fluid mainly composed of gas is bounced back and hits the mesh-like support member 300. In such a state, the fibers are heat-sealed to increase the space area ratio between the fibers.
- the space area ratio refers to the ratio of the space area in which no fiber exists to the total area. Moreover, the measuring method of a space area ratio is as follows.
- a digital microscope VHX-100 manufactured by Keyence Corporation is used as a measuring instrument.
- the 3D image is converted into a 2D image, the set volume is planarized, and the space between the points in the range is specified.
- Binarization processing is performed on 2D images. Place existing parts in white and non-existing parts in black. (7) Invert the color to make the part where the fiber does not exist white, and measure the whitened area.
- the magnification is 300 times
- the shooting depth is 220 / im (1 shot every 20 / im, 1 shot in total)
- n 10 measurements
- the average value is taken. It was.
- the space area ratio is calculated as follows.
- Spatial area ratio (%) (total space area (mm 2 ) / measurement area (mm 2 )) X 100 where the total space area is calculated by (total space area at measurement Z magnification at measurement) In addition, the measurement range area can be calculated by (measurement range area at the time of measurement Z magnification at the time of measurement).
- the space area per space refers to the ratio of the total area of the spaces where no fibers exist to the number of spaces where no fibers exist within a predetermined range. It can be calculated with the following formula.
- the space area ratio measured from the surface on the side where the convex portions 2a and 2b protrude, and the surface area on the opposite side from the surface on which the convex portions 2a and 2b protrude is 5% or more, preferably 5 to 80%, more preferably 15 to 40%.
- the space area ratio measured from the surface on which the convex portions 2a and 2b protrude is 50% or more, preferably 50 to 90%, and more preferably 50 to 80%.
- the space area per space measured from the surface on which the convex portions 2a and 2b project is f up to 3000 xm 2 or more, preferably f up to 3000 forces, 30000 zm 2 , particularly preferably up to f 5000 forces.
- the basis weight of the entire nonwoven fabric 116 can be 10 forces to 200 g / m 2 , preferably 20 forces to 10 Og / m 2 .
- the nonwoven fabric 116 is used for, for example, a surface sheet of an absorbent article, if the fabric weight is smaller than SlOg / m 2, it is easily broken during use. Further, if the basis weight of the nonwoven fabric 116 is larger than 200 g / m 2, it may be difficult to smoothly move the resulting liquid downward.
- the basis weight of one of the side edges 14, 16 in the openings 3a, 3b is 1.1 times or more than the basis weight of the other side edges 15, 17;
- Examples of the 16 basis weight are 15 to 250 g / m 2 , preferably 20 to 120 gZm 2 .
- the convex portions 2a and 2b are caused by the weight of the liquid contained in the convex portions 2a and 2b or external pressure. In some cases, once absorbed, the liquid that has been absorbed is likely to return under pressure.
- the predetermined liquid brought to the convex portions 2a and 2b is moved downward. In some cases, liquid may accumulate in the convex portions 2a and 2b to give the user a feeling of moisture.
- the other side edge portions 15 and 17 in the openings 3a and 3b may have a basis weight of 10 g / m 2 to 200 g / m 2 , preferably 20 to 100 g / m 2 .
- the basis weight of the other side edge portions 15 and 17 in the openings 3a and 3b is smaller than 10 g / m 2 , the convex portions 2a and 2b are caused by the weight of the liquid contained in the convex portions 2a and 2b or external pressure. In some cases, once absorbed, the liquid that has been absorbed is likely to return under pressure.
- the predetermined liquid brought to the convex portions 2a and 2b is moved downward. In some cases, liquid may accumulate in the convex portions 2a and 2b to give the user a feeling of moisture.
- the basis weight of the first connecting part 4a is, 15 ⁇ 250g / m 2, preferably 20: may be mentioned 120gZm 2. If the basis weight of the first connecting part 4a 15GZm 2 smaller than, excessive external pressure or vignetting by convex portions 2a, when such 2b is crushed, also similarly first connecting part 4a ulcer It may be done. If the basis weight of the first connecting part 4a is larger than 250 gZm 2 , the predetermined liquid dropped into the grooves la and lb will accumulate in the first connecting part 4a, resulting in excessive external pressure. May be dampened when applied to the non-woven fabric 116 and in direct contact with the skin.
- the one side edge 14 in the first opening 3a has a higher basis weight than the other side edge 15 in the opening 3a.
- the one side edge 16 in the second opening 3b has a higher basis weight than the other side edge 17 in the second opening 3b.
- the first connecting portion 4a is obtained when the basis weight is higher than the other side edge portion 15 in the first opening 3a.
- the grooves la and lb are permeable to the liquid, and the convex portions 2a and 2b are porous so as to hold the liquid. I have to. Furthermore, the openings 3a and 3b formed in the grooves la and lb can transmit solid as well as liquid.
- the grooves la and lb are suitable for permeating liquid and solid. Furthermore, since the fibers 101 at the bottom of the grooves la and lb are oriented in the width direction (WD), the liquid flows too much in the longitudinal direction (LD) of the nonwoven fabric 116 of the grooves la and lb and spreads widely. Can be prevented. Even though the groove portions la and lb have a low basis weight, the fiber 101 is oriented (CD orientation) in the width direction (WD) of the groove portions la and lb, so the strength in the width direction (WD) of the nonwoven fabric (CD Strength) is increasing.
- the nonwoven fabric production method of the present invention is a fiber assembly formed in a substantially sheet shape, and a fluid mainly composed of gas is sprayed onto the fiber assembly in which the fibers constituting the fiber assembly have a degree of freedom.
- a plurality of openings formed in the longitudinal direction (LD) that is the vertical direction is formed, and one side edge in the width direction (WD) that is the horizontal direction in each of the plurality of openings is It is a manufacturing method for manufacturing a nonwoven fabric having a fiber density higher than that of the other side edge portion in the width direction (WD) in each of the plurality of openings.
- a method for producing the nonwoven fabric 116 in the present embodiment will be described below with reference to FIGS.
- the fiber web 100 is placed on the upper surface side of the mesh support member 300.
- the fiber web 100 is supported from below by the mesh support member 300.
- the net-like support member 300 in a state where the fiber web 100 is supported is arranged in the vertical direction.
- the nonwoven fabric 116 in this embodiment can be manufactured by moving in a certain longitudinal direction (LD) and continuously blowing gas from the upper surface side of the moved fiber web 100.
- the nonwoven fabric manufacturing apparatus 90 for manufacturing the nonwoven fabric 116 of the present embodiment is a net-like support member 30 0 that supports the fiber web 100, which is a fiber assembly, from one surface side. Then, a fluid mainly composed of gas is sprayed from the other surface side of the fiber web 100 as the fiber aggregate to the fiber web 100 as the fiber aggregate supported by the mesh-like support member 300 from the one surface side.
- An ejection unit 910 that is a spraying means and an air supply unit (not shown), and a conveyor 930 that is a moving unit that moves the fiber web 100 that is a fiber assembly in a predetermined direction F are provided.
- the mesh-like support member 300 is configured so that, for example, a fluid mainly composed of gas blown from the upper surface side, which is the other surface side of the fiber web 100, is a fiber web in the mesh-like support member 300. Ventilation part that can vent to the lower side opposite to the side where 100 is disposed, and fluid force mainly composed of gas blown from the upper surface side of the fiber web 100. And a non-venting part in which the fibers 101 constituting the fiber web 100 cannot move to the opposite side of the net-like support member 300.
- the wire 301 and the wire 302 portion of the mesh-like support member 300 and the intersection portion 304 thereof serve as a non-venting portion.
- the hole 303 which is a portion surrounded by the wire 301 and the wire 302 in the net-like support member 300 is a ventilation portion.
- the holes 303 in the mesh support member 300 allow the fibers 101 constituting the fiber web 100 to move to the opposite side of the mesh support member 300 from the side on which the fiber web 100 is placed. Thereby, the protrusion part which protrudes in the thickness direction can be formed. The protrusion will be described in detail in the third embodiment (see FIG. 11).
- the net-like support member 300 is formed so as to interweave the wire 301 arranged in the longitudinal direction (LD) and the wire 302 arranged in the width direction (WD) which is the lateral direction.
- the wire 302 is woven in a zigzag shape so as to straddle the wire 301 in the thickness direction.
- the zigzag shape of this wire 302 is woven alternately in the longitudinal direction (LD). It is included.
- the air-impermeable portion is connected to one wire 301 such that the upper apex portion of one wire 301 and the lower apex portion of one wire 302 are connected.
- the lower apex of the other wire 301 adjacent to 301 and the upper apex of the other wire 302 adjacent to one wire 302 are woven together so as to be connected.
- the fibrous web 100 is supported from the lower surface side, which is one surface side, by the mesh-like support member 300 shown in FIG. 3, and a fluid mainly composed of gas is sprayed from the upper surface side.
- the positional relationship between the ejection port 913 and the wire 301 arranged in the longitudinal direction (LD) is almost the center between the fluid force wire 301 and the wire 301 mainly composed of gas ejected from the ejection port 913. It is preferable to be sprayed on.
- the fibrous web 100 arranged on the wire 302 is moved by being sprayed with a fluid mainly composed of gas to form the openings 3a and 3b, and the fibrous web 100 is formed.
- the side edges 14 and 16 of the openings 3a and 3b are formed by moving the wire 302 to a lower inclination.
- the fibrous web 100 is hardly moved to the side edge opposite to the one side edge 14, 14 in the width direction (WD) of the openings 3a, 3b, that is, to the other side edges 15, 17. .
- the height difference of the inclination of the wire 302 arranged in the longitudinal direction (LD) is 0.5 mm or more, preferably 0.5 ⁇ 10 to 10 mm, more preferably 1 ⁇ 0 to 5.0 ⁇ 5 mm.
- the air permeability can be partially changed by partially changing the weaving method, the yarn thickness, and the yarn shape.
- the net-like support member 300 can be made of, for example, a member made of polyester, polyphenylene sulfide, nylon, yarn made of resin such as conductive monofilament, or stainless yarn made of metal such as copper or aluminum.
- a fluid mainly composed of a gas blown from the upper surface side of the fiber web 100 is partially blocked by the wire 301, the wire 302, and the intersection portion 304 of the mesh-like support member 300. The portion vents downward without being obstructed by the mesh-like support member 300.
- the air permeability of the wire 301 and the wire 302 (particularly, the wire intersection portion 304) serving as the air-impermeable portion in such a case is 90% or less with respect to the air permeability in the hole 303, preferably Examples include 0 force and 50%, more preferably 0 to 20%.
- 0% means that the fluid made up mainly of gas cannot be vented.
- the air permeability in the region of the hole 303 or the like serving as the ventilation portion can be, for example, 10000 force or 6000 0 cc / cm 2 'min, preferably 20000 to 50000 cc Zcm 2 ' min.
- the reticulated support member to be used preferably has a higher surface slipperity in the region serving as the air-impermeable portion than in the region forming the air-permeable portion. Due to the high sliding property, the fibers 101 are easily moved in the region where the fluid mainly composed of gas is sprayed and the region where the non-venting part intersects, so that the openings 3a, 3b and the first connecting part 4a are formed. Can increase the sex.
- the non-woven fabric 115 (corresponding to the non-woven fabric 116 in the present embodiment) is placed on the fiber web 100 in a predetermined direction in the non-woven fabric manufacturing apparatus 90. It is formed while being moved sequentially.
- the moving means moves the fiber web 100, which is a fiber assembly in a state of being supported from the one surface side by the mesh support member 300 described above, in a predetermined direction. Specifically, the fiber web 100 in a state where a fluid mainly composed of gas is sprayed is moved in a predetermined direction F.
- a conveyor 930 can be exemplified.
- the conveyor 930 includes a breathable breathable belt portion 939 formed in a horizontally long ring shape on which the mesh support member 300 is placed, and a longitudinal direction inside the breathable belt portion 939 formed in a horizontally long ring shape.
- Rotating portions 931 and 933 that are disposed at both ends of the (LD) and rotate the ring-shaped breathable belt portion 939 in a predetermined direction.
- the conveyor 930 moves the net-like support member 300 in a state where the fiber web 100 is supported from the lower surface side in the predetermined direction F as described above. Specifically, as shown in FIG. 7, the fiber web 100 is moved so as to pass under the force S and the lower side of the ejection portion 910. Further, the fiber web 100 is moved so as to pass through the inside of the heater section 950 that is open on both side surfaces, which is a heating means.
- the spraying means includes an air supply unit (not shown) and an ejection unit 910.
- An air supply unit (not shown) is connected to the ejection unit 910 via an air supply tube 920.
- the air supply pipe 920 is connected to the upper side of the ejection part 910 so as to allow ventilation.
- the ejection portion 910 has a plurality of ejection ports 913 formed at predetermined intervals.
- air is supplied from an air supply unit (not shown) to an ejection unit 910 via an air supply pipe 920.
- the generated gas is ejected from a plurality of ejection ports 913 formed in the ejection portion 910.
- the gas ejected from the plurality of ejection ports 913 is continuously ejected to the upper surface side of the fiber web 100 supported by the mesh support member 300 from the lower surface side.
- the gas ejected from the plurality of ejection ports 913 is continuously ejected onto the upper surface side of the fiber web 100 in a state where it is moved in the predetermined direction F by the conveyor 930.
- the intake portion 915 disposed below the ejection portion 910 and below the mesh-like support member 300 sucks in gas or the like ejected from the ejection portion 910 and ventilated through the mesh-like support member 300.
- the fiber web 100 can be positioned so as to stick to the mesh-like support member 300 by the intake air by the intake portion 915.
- the air can be conveyed into the heater unit 950 while maintaining the shape of the groove (unevenness) formed by the airflow. In this case, it is preferable that the air is conveyed while being sucked to the heater portion 950 simultaneously with the molding by the air flow.
- the temperature of the fluid mainly composed of gas ejected from each of the ejection ports 913 may be room temperature as in the first embodiment, but, for example, the moldability of the groove (unevenness) and the opening is good.
- the temperature can be adjusted to at least the softening point of the thermoplastic fiber constituting the fiber assembly, preferably within the temperature range of + 50 ° C. to 1050 ° C. of the melting point. If the fiber is soft, the repulsive force of the fiber itself will decrease, so if the fiber is rearranged by airflow or the like, or if the temperature is further increased immediately, heat fusion between the fibers will start. It becomes easier to maintain the shape of the groove (unevenness). This facilitates conveyance into the heater unit 950 while maintaining the shape of the groove (unevenness).
- the heater unit 950 which is a heating means, is open at both ends in the predetermined direction F.
- the fibrous web 100 placed on the reticulated support member 300 moved by the conveyor 930 is continuously moved in the heating space formed in the heater section 950 while staying for a predetermined time.
- thermoplastic fibers are included in the fibers 101 constituting the fiber web 100, a nonwoven fabric 115 in which the fibers 101 are bonded to each other by heating in the heater section 950 can be obtained.
- a support member different from the net-like support member 300 may be used to form the nonwoven fabric 116 having the openings 3a and 3b.
- Groove parts la, lb, convex part 2 depending on the supporting member used The sizes and arrangements of a, 2b, openings 3a, 3b, and first connecting portion 4a can be changed.
- a sleeve made of a metal such as stainless 'copper' aluminum can be exemplified.
- the sleeve can be exemplified by the metal plate partially extracted in a predetermined pattern.
- the metal is hollowed out, and the part where the metal is not hollowed out is a non-vented part.
- the surface of the air-impermeable portion is preferably smooth in order to improve the slip property of the surface.
- an intake portion 915 that draws a fluid mainly composed of gas blown to the nonwoven fabric 116 from below the mesh-like support member 300 or the support member of the sleeve.
- sucking (inhaling) the fluid mainly composed of gas injected by the suction portion 915 the fluid composed mainly of gas hitting the mesh support member 300 is rebounded excessively, and the shape of the fiber web 100 is changed. It can be prevented from being disturbed.
- the strength for drawing the fluid mainly composed of gas may be strong enough to press the fiber 101 in the region where the fluid composed mainly of gas is sprayed against the support member. Further, in order to maintain the state of being pressed against the supporting member, the temperature of the fluid mainly composed of gas sprayed is not less than the soft softening point of at least some of the constituent fibers of the fibers 101 constituting the nonwoven fabric 116, in particular. The softening point or higher and the melting point or lower is preferable.
- the convex portions 2a and 2b and the openings 3a and 3b and the openings 3a and 3b can be adjusted by adjusting the air volume, temperature, pull-in amount of the fluid mainly composed of gas to be blown, the air permeability of the support member, and the basis weight of the fiber web 100
- the shape of the first connecting portion 4a and the like can be changed.
- the amount of fluid mainly composed of gas injected and the amount of fluid mainly composed of gas sucked (intake) are almost equal, or the amount of fluid mainly composed of gas sucked (intake)
- the back surface side of the convex parts 2a and 2b in the nonwoven fabric 116 is formed so as to follow the shape of the mesh support member 300.
- the second embodiment and the third embodiment of the nonwoven fabric of the present invention will be described with reference to Figs.
- the second embodiment and the third embodiment are other embodiments in which the shape of the nonwoven fabric is different.
- the nonwoven fabric 140 includes a third opening 3c adjacent to the first opening 3a on the side opposite to the second opening 3b adjacent to the first opening 3a.
- the second connecting portion 4b formed between the two is different.
- the nonwoven fabric 140 in the present embodiment includes one side edge portion 16 in the second opening 3b, the first connecting portion 4a, one side edge portion 14 in the opening 3a, the second connecting portion 4b,
- the second adjacent opening 3c is different from the first embodiment in that the one side edge 18 in the second adjacent opening 3c is continuous in a serpentine shape.
- the nonwoven fabric 140 in the present embodiment includes the groove portions la and lb, the convex portions 2a and 2b, the opening portions 3a and 3b, the one side edge portions 14 and 16 in the opening portions 3a and 3b, and the opening portions 3a and 3b.
- the other side edge portions 15, 17 and the first connecting portion 4a, the fiber orientation, the fiber density, and the basis weight are the same as those in the above-described embodiment.
- the third opening 3c (hereinafter referred to as the third opening 3a) adjacent to the first opening 3a on the opposite side of the second opening 3b.
- the non-woven fabric 140 will be described with respect to differences from the above-described embodiment, with the opening 3c being simply abbreviated as the opening 3c) as an example of the plurality of openings 3.
- the nonwoven fabric 140 in the present embodiment is a nonwoven fabric in which the opening 3c is formed in addition to the openings 3a and 3b as described above.
- the nonwoven fabric 140 is The openings 3a, 3b, 3c are non-woven fabrics formed along the longitudinal (longitudinal) direction (LD) of the nonwoven fabric 140 in the order of the front side force opening 3c, the opening 3a, and the opening 3b.
- the nonwoven fabric 140 is formed with one side edge 18 in the width direction (WD) of the nonwoven fabric 140 in the opening 3c, similarly to the one side edge 14, 16 in the opening 3a, 3b.
- one side edge 18 in the third opening 3c is a side edge opposite to the one side edge 14 in the first opening 3a in the width direction (WD).
- the other side edge 19 in the width direction (WD) of the opening 3c is formed in the convex portions 2a and 2b.
- the nonwoven fabric 140 is a nonwoven fabric in which a second connecting portion 4b formed between the first opening 3a and the third opening 3c is formed. That is, between the first opening 3a and the third opening 3c adjacent to each other in the groove la or the groove lb, the first protrusions 2a and 2b adjacent to each other with the groove la or the groove lb interposed therebetween are connected. Two connecting portions 4b are formed. In other words, it can be said that the plurality of second connecting parts 4b formed at a predetermined interval connect the convex part 2a and the convex part 2b adjacent thereto. As will be described later, the second connecting portion 4b is a region having a fiber density higher than that of the other side edge portion 15 in the first opening 3a.
- the third opening 3c described above is formed in the same manner as the openings 3a and 3b, one side edge 18 is formed in the same manner as one side edge 14 and 16, and the other side edge
- the portion 19 is formed in the same manner as the other side edge portions 15 and 17, and the second connecting portion 4b is formed in the same manner as the first connecting portion 4a. Since the size, the thickness, the fiber orientation, the basis weight, the space area ratio, and the like are formed in the same manner, description thereof is omitted.
- the second connecting portion 4b is a region having a higher fiber density than the other side edge portion 15 in the opening 3a. Further, as described above, the first connecting portion 4a and the one side edge portion 14 of the opening 3a are similarly regions having higher fiber density than the other side edge portion 15 of the opening 3a.
- the first connecting portion 4a, the one side edge 14 in the opening 3a, and the second connecting portion 4b are high-density regions. Therefore, the first connecting portion 4a, the one side edge portion 14 in the opening 3a, and the second connecting portion 4b are formed in the opening 3a in the width direction (WD) of the nonwoven fabric 140. Since the opposite side (one side) of one side edge portion 14 is formed in an open U-shape, it can be defined as a U-shaped high-density region as a whole.
- the plurality of openings 3a, 3b, 3c are alternately and continuously formed in the grooves la, lb, one of the first connecting portion 4a, which is a U-shaped high-density region, and one of the openings 3a
- the side edge portion 14 and the second connecting portion 4b are also formed continuously along the longitudinal direction (LD) of the nonwoven fabric 140.
- the nonwoven fabric 140 according to the present embodiment is a nonwoven fabric provided with a plurality of U-shaped high-density regions extending in the longitudinal direction (LD).
- the U-shaped high-density region is an “inverted U-shaped” high density region that is the opposite shape of the “U-shaped”, that is, a region including an inverted U-shaped high density region.
- the groove portion la has a “U-shaped” high density region formed in the groove portion la and a “reverse U-shaped” high density region formed in the groove portion lb.
- a pair of “U-shaped” high density regions may be formed in lb, “U” shaped high density regions are formed in the groove la, and “U” shaped high density regions are formed in the groove lb.
- a "U-shaped" high-density region of the same shape is formed in the groove la, lb.
- the second connection One side edge 18 in the part 4b and the third opening 3c is a high-density region having a higher fiber density than the other side edge 15 in the first opening 3a.
- the nonwoven fabric 140 includes one side edge portion 16, the first connecting portion 4a, and the first opening portion 3a in the second opening portion 3b.
- a non-woven fabric in which a high-density region is formed so that one side edge 14 in the second continuous portion 4b, and one side edge 18 in the third opening 3c are continuous in a meandering manner. is there.
- One side edge 16 in the second opening 3b, the first connecting part 4a, one side edge 14 in the first opening 3a, the second connecting part 4b, and one side edge in the third opening 3c Part 18 can be defined as a serpentine high density region as a whole.
- the nonwoven fabric 140 is a nonwoven fabric having a plurality of meandering high-density regions extending in the longitudinal (longitudinal) direction (LD) of the groove portions la and lb.
- the nonwoven fabric 140 in the present embodiment can be manufactured by the nonwoven fabric manufacturing apparatus 90 described above.
- the description in the description of the manufacturing method of the nonwoven fabric 116 and the nonwoven fabric manufacturing apparatus 90 described above can be referred to.
- the fibrous web 100 when there is almost no line tension applied, or when the fiber web 100 is overfeeded immediately before a fluid mainly composed of gas (for example, hot air) is blown, the nonwoven fabric 140 is made of the above-mentioned nonwoven fabric.
- the manufacturing equipment 90 Manufactured by the manufacturing equipment 90
- a third embodiment of the nonwoven fabric of the present invention will be described with reference to FIG.
- the region corresponding to the convex portions 2a and 2b is the direction in which the convex portions 2a and 2b protrude. Is different in that it protrudes in the same direction. Further, the nonwoven fabric 150 in the present embodiment is different in that a plurality of protrusions 10 are formed on the other surface side.
- the non-woven cloth 150 ⁇ , groove ⁇ Bla, lb, convex ⁇ B2a, 2b, opening ⁇ 3a, 3b, 3c, one side edge 14 in opening ⁇ B3a, 3b, 3c 14 , 16, 18 and the other side edges 15, 17 and 19 in the openings 3a, 3b and 3c, the first connecting part 4a and the second connecting part 4b, and their fiber orientation, fiber density, and basis weight This is the same as the above-described embodiment.
- different points will be described.
- the groove portions la and lb are alternately formed in parallel at substantially equal intervals. Between the groove portions la and the groove portions lb, the convex portions 2a, 2b are alternately formed at substantially equal intervals.
- the region corresponding to the bottom surface of the convex portions 2a and 2b is on one surface side (one surface side) along the longitudinal direction (LD).
- the protrusions 2a and 2b are formed so as to protrude in the same direction.
- regions corresponding to the bottom surfaces of the convex portions 2a and 2b on the one surface side are recessed to form concave portions, and the convex portions 2a and 2b on the one surface side are formed.
- the area corresponding to the bottom of the is convex.
- the nonwoven fabric 150 is composed of one side edge 14 in the first opening 3a and one side edge in the second opening 3b on the other side. 16, partial force corresponding to one side edge 18 in the first connecting portion 4a, the second connecting portion 4b, and the third opening 3c Thickness
- a protruding portion of a predetermined length that is a protruding portion protruding in the thickness direction 10 is a nonwoven fabric in which a plurality is formed
- the protrusion 10 is a high-density region, one side edge 14 in the first opening 3a, one side edge 16 in the second opening 3b, the first connection 4a, the second connection
- the fiber 101 constituting the fiber web 100 at the one side edge 18 in the part 4b and the third opening 3c is formed so as to protrude in the thickness direction after being separated from the net-like support member 300. That is, the fibers 101 constituting the fiber web 100 to which a fluid made mainly of gas is sprayed are subjected to the action of the wire 301 and the wire 302 of the net-like support member 300, and the plurality of protrusions 10 have a thickness in the fiber web 100 It is formed so as to protrude in the vertical direction.
- the cross-sectional shape of the protrusion 10 in the longitudinal direction (LD) is a substantially square shape.
- the cross-sectional shape in the longitudinal direction (LD) of the protrusion 10 is not limited to a substantially square shape, and is not particularly limited to a dome shape, a trapezoidal shape, a triangular shape, an ⁇ shape, or the like.
- a substantially rectangular shape is preferable.
- the top surface of the protrusion 10 is preferably a flat surface or a curved surface.
- the cross-sectional shape in the longitudinal direction (LD) of the protrusion 10 is a substantially square shape.
- the protrusion triangular prism
- the protrusion has a triangular shape (on the triangular prism). Projections with curved tops, square (square prism) projections, and these projections that are inclined obliquely with respect to the thickness direction, etc. It ’s okay.
- the non-woven fabric 150 When the non-woven fabric 150 is viewed from the one surface side, the plurality of protrusions 10, the plurality of flat portions formed between the plurality of protrusions 10 and substantially square, and the plurality of protrusions 10.
- Flat part A plurality of openings 3a, 3b, 3c formed on a pair of sides are regularly formed.
- the manufacturing method of the nonwoven fabric 150 in the present embodiment is the same as that described above. However, as described later, the nonwoven fabric 150 is described above when the amount of fluid mainly composed of gas is larger than that in the second embodiment. It can be manufactured by the nonwoven fabric manufacturing apparatus 90. Further, the mesh support member 300 used for manufacturing the nonwoven fabric 150 is the same as the mesh support member 300 in the first embodiment described above.
- the fiber web 100 that is a fiber assembly is sprayed with a fluid mainly composed of gas in a state where the fiber web 100 is supported from the lower surface side by the mesh support member 300.
- a fluid mainly composed of gas is sucked (intake) from below the reticulated support member 300.
- the amount of fluid mainly composed of gas sucked (intake) is smaller than the amount of fluid mainly composed of gas force, that is, the fluid composed mainly of gas is sucked (intake).
- the bottom surface side (bottom surface side) of the convex portions 2a and 2b is convex
- the force S can be formed so as to protrude in the same direction as the convex portions 2a and 2b on the upper surface side of the portions 2a and 2b.
- a region on the other surface side corresponding to the bottom surface of the groove portions la and lb protrudes relative to each other to form a convex portion protruding from the lower surface side.
- the nonwoven fabric in the present invention examples include a surface sheet in an absorbent article such as a sanitary napkin, a liner, and a diaper.
- the convex part may be on either the skin side or the back side, but if it is on the skin side, the contact area with the skin is reduced, so it may be difficult to give a moist feeling due to body fluids.
- It can also be used as an intermediate sheet between the surface sheet of the absorbent article and the absorbent body. Since the contact area with the topsheet or absorbent body is reduced, it may be difficult to return from the absorbent body.
- absorbent material side sheets, outer surfaces such as diapers (outer backs), female hook-and-loop fastener materials, etc. can be used because they have a reduced contact area with the skin and a feeling of cushioning.
- wipers, masks, breast milk pads, etc. for removing dust and dirt from the floor and body Can be used for surfaces.
- the use of the nonwoven fabric in the present invention has, for example, unevenness, and has a plurality of openings 3a, 3b and a first connecting part 4a in the recesses (grooves la, lb), Fiber density force of one side edge 14 in the openings 3a, 3b
- Other parts for example, a nonwoven fabric having a fiber density higher than the fiber density of the other side edge 15 in the openings 3a, 3b, and the convex parts 2a, 2b
- the nonwoven fabric is preferably arranged so that the surface on which the convex portions 2a and 2b are formed is on the skin side.
- One side edge 14 of the openings 3a and 3b has a relatively high fiber density, that is, high rigidity. Therefore, it is possible to prevent the openings 3a and 3b from being easily crushed even if a load is applied to one side edge portion 14. Further, the other side edge 15 in the openings 3a, 3b has a relatively low fiber density, that is, it can prevent liquid around the openings 3a, 3b from staying.
- the nonwoven fabric When the nonwoven fabric is used as the surface sheets 401, 402 of the absorbent article, when a predetermined liquid is excreted, the liquid is mainly dropped into the groove.
- the opening since the opening is provided, for example, even a viscous liquid containing solids can be transferred to the absorber through the opening and can be prevented from immediately spreading to the surface. .
- the width direction (WD) since most of the fibers in the first connecting portion 4a are oriented in the width direction (WD), the width direction (WD) during wearing of the absorbent article having high tensile strength in the width direction (WD) ( It is possible to prevent the surface sheet from being damaged by applying a force such as friction to (WD).
- the nonwoven fabric in the present invention has unevenness, and has a plurality of openings 3a, 3b and a first connecting part 4a in the recesses (grooves la, lb). Fiber density force of one side edge 14 in 3a, 3b Other part, for example, in openings 3a, 3b
- the nonwoven fabric higher than the fiber density of the other side edge part 15 is used as the intermediate sheet 311 of the absorbent article in which the convex parts 2a and 2b are arranged on the skin surface side can be exemplified.
- the nonwoven fabric is preferably arranged so that the surface on which the convex portions are formed is on the surface sheet side.
- One side edge 14 in the openings 3a and 3b has a relatively high fiber density, that is, high rigidity. Therefore, it is possible to prevent the openings 3a and 3b from being easily crushed even if a load is applied to one side edge portion 14. Further, the other side edge 15 in the openings 3a, 3b has a relatively low fiber density, that is, it can prevent liquid around the openings 3a, 3b from staying.
- the nonwoven fabric By arranging the nonwoven fabric as an intermediate sheet so that the surface on which the convex portions 2a, 2b are formed is on the surface sheet 310 side, a plurality of spaces are provided between the surface sheet 310 and the intermediate sheet 311. Can be provided. Further, the openings 3a and 3b are provided in the intermediate sheet 311, so that even when a large amount of liquid is excreted in a short time, the liquid is quickly transferred to the absorber with a small number of liquid permeation inhibiting elements. Can be migrated. And it can prevent that this liquid returns to a surface sheet and spreads widely.
- the central part of the convex parts 2a, 2b contains more fibers oriented in the thickness direction (TD) than the groove parts la, lb, and the apex of the convex parts 2a, 2b and the surface sheet 310 ,
- the liquid remaining on the surface sheet 310 is easily drawn in the thickness direction (TD). This makes it difficult for the liquid to remain on the surface sheet.
- the surface on which the convex portions 2a and 2b of the outer surface covering material 320 are formed is arranged so as to be outside the absorbent article, when the absorbent article is used, the hand is mainly touched The touch feels better. Further, the openings 3a and 3b in the grooves la and lb provide excellent air permeability.
- the fiber assembly is a fiber assembly formed in a substantially sheet shape, and the fibers constituting the fiber assembly have a degree of freedom.
- it is a fiber assembly having a degree of freedom between fibers.
- the degree of freedom between the fibers means that the fibers can move freely by a fluid composed mainly of a gas, which is a fiber assembly.
- This fiber assembly can be formed, for example, by ejecting mixed fibers obtained by mixing a plurality of fibers so as to form a fiber layer having a predetermined thickness. Further, for example, a plurality of different fibers can be formed by being ejected so as to form a fiber layer by laminating them in a plurality of times.
- Examples of the fiber assembly in the present invention include a fiber web formed by a card method, or a fiber web before heat fusion and solidification of heat-fusion between fibers.
- the web formed by the airlaid method, or the fiber web before the heat fusion between the fibers is solidified can be exemplified.
- the fiber web before the heat-bonding embossed by the point bond method solidifies can be illustrated.
- the fiber aggregate before being spun and embossed by the spunbond method, or the fiber aggregate before the embossed heat fusion is solidified can be exemplified.
- semi-entangled formed by needle punch method An example of such a fibrous web is possible.
- the fiber web formed by the spunlace method and semi-entangled can be exemplified.
- melting by the melt blown method and heat-bonding of fibers solidifying can be illustrated.
- a fiber aggregate before the fibers are solidified by a solvent formed by a solvent bonding method can be exemplified.
- the fibers are easily rearranged by the air (gas) flow is a fiber web formed by a card method using relatively long fibers, and the degree of freedom between the fibers is high.
- a web before heat-sealing formed only by entanglement can be exemplified.
- an oven treatment heat treating
- a predetermined heating device or the like After forming a groove (irregularity) or the like by a plurality of air (gas) flows described later, in order to form a nonwoven fabric while maintaining the shape, an oven treatment (heating treatment) is performed by a predetermined heating device or the like.
- the through-air method in which the thermoplastic fibers contained in the fiber assembly are thermally fused is preferable.
- fibers constituting the fiber assembly include, for example, low density polyethylene, high density polyethylene, linear polyethylene, polypropylene, polyethylene terephthalate, modified polypropylene, and modified polypropylene.
- fibers composed of a thermoplastic resin such as polyethylene terephthalate, nylon, polyamide, etc., and each resin alone or in combination.
- Examples of the composite shape include a core-sheath type in which the melting point of the core component is higher than that of the sheath component, an eccentric type of the core-sheath, and a side-by-side type in which the melting points of the left and right components are different. Also mixed are hollow type, flat type, Y type, C type, etc., three-dimensional crimped fiber of latent crimp or actual crimp, split fiber divided by physical load such as water flow, heat, embossing, etc. May be.
- the three-dimensional crimped shape is a spiral shape, zigzag shape, ⁇ shape or the like, and even if the fiber orientation is mainly oriented in the plane direction, the fiber orientation is partially oriented in the thickness direction.
- the buckling strength of the fiber itself works in the thickness direction, so that the bulk does not easily collapse even when an external pressure is applied.
- the spiral shape will return to its original shape when the external pressure is released, so it will return to its original thickness after the external pressure is released even if the external pressure is released.
- the actual crimped fiber is a general term for fibers that are preliminarily crimped with a shape imparted by mechanical crimping, a core-sheath structure of an eccentric type, side-by-side, or the like.
- Latent crimped fibers are those that are crimped by the application of heat.
- Mechanical crimp is a continuous linear fiber after spinning, which can be controlled by the difference in peripheral speed of the line speed 'heat' calo pressure, and the greater the number of crimps per unit length, the lower the external pressure.
- the buckling strength with respect to can be increased.
- the number of crimps is preferably in the range of 10 to 35 Zinch, and further 15 to 30 / inch.
- Shape imparting by heat shrinkage refers to fibers that are three-dimensionally crimped because they are made of two or more resins having different melting points, and the heat shrinkage changes due to the difference in melting point when heat is applied.
- the resin configuration of the fiber cross section include an eccentric type with a core-sheath structure and a side-by-side type in which the melting points of the left and right components are different.
- the heat shrinkage rate of such fibers is, for example, 5 forces 90. Examples of preferable values are / o, 10 force, and 80%.
- the method of measuring the heat shrinkage rate is as follows: (1) Create a 200 gsm (g / m 2 ) web with 100% fiber to be measured, and (2) make a sampnore that is cut to a size of 250 x 250 mm. 3) Leave this sample in an oven at 145 ° C (418. 15K) for 5 minutes, (4) measure the length dimension after shrinkage, and (5) calculate the length difference force before and after heat shrinkage. Can do.
- the fineness is preferably in the range of 1.1 to 8.8 dtex in consideration of, for example, the penetration of the liquid and the touch.
- the nonwoven fabric When the nonwoven fabric is used as a surface sheet, pulp, chemical pulp, rayon, for example, absorbs a small amount of menstrual blood or sweat remaining on the skin as fibers constituting the fiber assembly.
- Cellulose-based liquid hydrophilic fibers such as acetate and natural cotton may be contained.
- the cellulosic fibers are difficult to discharge the liquid once absorbed, for example, a case where it is mixed in the range of 0.1 to 5% by mass with respect to the whole can be illustrated as a preferable embodiment.
- a hydrophilic agent or a water repellent is kneaded into the hydrophobic synthetic fibers listed above, It may be coated. Further, hydrophilicity may be imparted by corona treatment or plasma treatment.
- an inorganic filler such as titanium oxide, barium sulfate, calcium carbonate or the like is contained. If it is a core-sheath type composite fiber, it can be contained only in the core, but it can also be contained in the sheath.
- thermoplastic fibers are thermally fused by an oven treatment (heat treatment) is preferable.
- heat treatment heat treatment
- the fiber suitable for this production method it is preferable to use a fiber having a core-sheath structure or a side-by-side structure in order to heat-bond the intersections of the fibers. It is preferable that it is comprised with the fiber of a sheath structure.
- These fibers can be used alone or in combination of two or more.
- the fiber length is preferably 20 force 100 mm, particularly 35 to 65 mm.
- Examples of the fluid mainly composed of gas in the present invention include a gas adjusted to room temperature or a predetermined temperature, or an aerosol containing solid or liquid fine particles in the gas.
- Examples of the gas include air and nitrogen.
- the gas contains liquid vapor such as water vapor.
- Aerosonole is a liquid or solid dispersed in a gas, and examples thereof are given below.
- inks for coloring softeners such as silicon for enhancing flexibility, hydrophilic or water repellent activators for controlling antistatic properties and wettability, and oxidation for increasing fluid energy
- Inorganic fillers such as titanium and barium sulfate, powder bonds such as polyethylene to increase the energy of fluids and improve unevenness maintenance during heat treatment, diphenhydramine hydrochloride, isopropylene methylphenol to prevent itching, etc.
- Anti-histamine, moisturizer, disinfectant, etc. It can be illustrated.
- the solid includes a gel.
- the temperature of the fluid mainly composed of gas can be appropriately adjusted. It can be appropriately adjusted according to the properties of the fibers constituting the fiber assembly and the shape of the nonwoven fabric to be produced.
- the temperature of the fluid mainly composed of gas is higher when the temperature of the fluid constituting the fiber assembly is higher to some extent. This is preferable because the degree of freedom increases.
- the fluid mainly composed of gas was sprayed by setting the temperature of the fluid composed mainly of gas to a temperature at which the thermoplastic fiber can be softened.
- the thermoplastic fiber disposed in the region or the like can be configured to be softened or melted and cured again.
- the shape of the nonwoven fabric is maintained by spraying a fluid mainly composed of gas. Further, for example, when the fiber assembly is moved by a predetermined moving means, the fiber assembly (nonwoven fabric) is given a strength that is not scattered.
- the flow rate of the fluid mainly composed of gas can be adjusted as appropriate.
- the sheath is made of high-density polyethylene and the core is made of polyethylene terephthalate.
- the fiber strength is 20 to 100 mm, preferably 35 to 65 mm, and the fineness is 1 ⁇ 1 to 8 ⁇ 8dtex, preferably 2 ⁇ 2 force 5.
- Mainly 6dtex core-sheath fiber if the fiber is opened by the card method, the fiber length is 20 force 100mm, preferably 35 force 65mm, opened by airlaid method
- a fiber web 100 having a fiber length of 1 to 50 mm, preferably 3 to 20 mm, and adjusted to 10 g of 1000 gsm, preferably 15 to lOOgsm can be exemplified.
- an ejection portion 910 ejection port 913: diameter of 0.1 to 30 mm, preferably 0. 0
- a plurality of ejection ports 913 shown in FIG. 5 or FIG. 6 are formed.
- pitch is 0.5 force, et al. 30mm, preferably 0.1 to 10mm: shape is perfect circle, ellipse or rectangle), temperature is 15 to 300 ° C (288.15K force 573.15K ), Preferably f 100 power, et al 200. C (373. 15K force et al. 473. 15K) hot air at a flow rate of 3 force, et al. 50 [L / (min'hole)], preferably 5-20 [L / (min'hole)] An example is the case of 100 sprays.
- a fiber assembly in which the position and orientation of the constituent fibers can be changed is one of the preferred fiber assemblies in the present invention.
- One. Made with such fibers and production conditions For example, the nonwoven fabric shown in FIG. 9 can be formed.
- the dimensions and basis weight of the groove portions la and lb and the convex portions 2 a and 2 b can be obtained within the following ranges.
- Groove 1 has a thickness in the range of 0.05 to 1 Omm, preferably in the range of 0.1 to 5 mm, width in the range of 0.1 to 30 mm, preferably in the range of 0.5 to 5 mm, and the basis weight from 2 to 900 g / m 2 , preferably in the range of 10 to 90 gZm 2 .
- the thickness is 0.1 to 15 mm, preferably 0.5 to 10 mm
- the width is 0.5 force, etc. 30 mm, preferably f up to 1.0 force, etc. 10 mm, per unit weight ⁇ 5
- the force is 1000 g / m 2 , preferably in the range of 10 to lOOgsm. Further, the force capable of producing a nonwoven fabric within the above numerical range is not limited to this range.
- the interval between the concave portions (groove portions) in the formed unevenness, the height of the convex portion, etc. can be appropriately adjusted.
- the groove or the like can be appropriately adjusted to have a meandering shape (wave shape, zigzag shape) or another shape.
- the shape and formation pattern of a groove part and an opening part can be suitably adjusted by adjusting the ejection amount and ejection time of the fluid which mainly consist of gas.
- the spraying angle of the fluid mainly composed of gas may be vertical or only in the moving direction F of the fiber web 100 by a predetermined angle in the line flow direction which is the moving direction F. Even if it is facing, it may be facing a predetermined angle in the direction opposite to the line flow direction.
- Examples of the method for adhering the fibers 101 in the nonwoven fabric 116 in which the openings are formed include, for example, adhesion by a needle punch method, a spunlace method, a solvent adhesion method, and thermal adhesion by a point bond method or an air-through method.
- adhesion by a needle punch method a spunlace method
- solvent adhesion method a solvent adhesion method
- thermal adhesion by a point bond method or an air-through method In order to maintain the adjusted fiber orientation, fiber density, or fiber weight, and the shape of the formed groove, opening or protrusion, the air-through method is preferred.
- heat treatment in the air-through method using the heater unit 95 is preferable.
- the nonwoven fabric 115 manufactured by being heated by the heater unit 950 is cut into, for example, the nonwoven fabric 115 into a predetermined shape by the conveyor 940 continuous with the conveyor 930 in the predetermined direction F.
- the process is moved to the process of scraping.
- the conveyor 940 includes a belt portion 949, a rotating portion 941, and the like.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CN2007800182686A CN101448989B (zh) | 2006-06-23 | 2007-06-08 | 无纺织物 |
EP07744921A EP2034066A4 (en) | 2006-06-23 | 2007-06-08 | NON-WOVEN FABRIC |
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JP2006174505 | 2006-06-23 | ||
JP2006-174505 | 2006-06-23 | ||
JP2006-270111 | 2006-09-29 | ||
JP2006270111A JP5154048B2 (ja) | 2006-06-23 | 2006-09-29 | 不織布 |
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WO2007148545A1 true WO2007148545A1 (ja) | 2007-12-27 |
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US (1) | US20070298667A1 (ja) |
EP (1) | EP2034066A4 (ja) |
JP (1) | JP5154048B2 (ja) |
KR (1) | KR20090023344A (ja) |
TW (1) | TW200804642A (ja) |
WO (1) | WO2007148545A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109152674A (zh) * | 2016-05-13 | 2019-01-04 | 尤妮佳股份有限公司 | 吸收性物品用的无纺布 |
Families Citing this family (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5328089B2 (ja) * | 2006-06-23 | 2013-10-30 | ユニ・チャーム株式会社 | 多層不織布及び多層不織布の製造方法 |
JP5123505B2 (ja) * | 2006-06-23 | 2013-01-23 | ユニ・チャーム株式会社 | 不織布 |
JP5497987B2 (ja) * | 2007-06-22 | 2014-05-21 | ユニ・チャーム株式会社 | 不織布およびその製造方法 |
JP5441356B2 (ja) * | 2008-05-15 | 2014-03-12 | ユニ・チャーム株式会社 | 吸収性物品用表面シートとその製造方法およびそれを用いた吸収性物品 |
EP2281536A4 (en) * | 2008-05-28 | 2013-01-02 | Unicharm Corp | ABSORBENT ARTICLE AND HYGIENIC TOWEL |
JP5067808B2 (ja) * | 2008-08-12 | 2012-11-07 | 金星製紙株式会社 | 有孔不織布シートおよびその製造方法 |
JP5590834B2 (ja) * | 2009-08-11 | 2014-09-17 | ユニ・チャーム株式会社 | 不織布およびその製造方法 |
JP2011062227A (ja) * | 2009-09-15 | 2011-03-31 | Kochi Prefecture | 吸収性物品 |
JP5377262B2 (ja) * | 2009-12-14 | 2013-12-25 | 花王株式会社 | 吸収性物品 |
JP5650967B2 (ja) * | 2010-09-17 | 2015-01-07 | 株式会社近澤製紙所 | 吸収性物品及び該吸収性物品を使用した体液吸収物品 |
TWI448277B (zh) | 2011-03-31 | 2014-08-11 | Uni Charm Corp | Absorbent items |
JP5361965B2 (ja) | 2011-04-28 | 2013-12-04 | ユニ・チャーム株式会社 | 吸収性物品 |
JP6092508B2 (ja) | 2011-09-30 | 2017-03-08 | ユニ・チャーム株式会社 | 吸収性物品 |
JP6057664B2 (ja) | 2011-12-28 | 2017-01-11 | ユニ・チャーム株式会社 | 吸収性物品、及びその製造方法 |
JP5963639B2 (ja) | 2012-02-29 | 2016-08-03 | ユニ・チャーム株式会社 | 吸収性物品 |
WO2013129327A1 (ja) | 2012-02-29 | 2013-09-06 | ユニ・チャーム株式会社 | 吸収性物品 |
JP5847055B2 (ja) | 2012-02-29 | 2016-01-20 | ユニ・チャーム株式会社 | 吸収性物品 |
JP5717672B2 (ja) | 2012-02-29 | 2015-05-13 | ユニ・チャーム株式会社 | 吸収性物品 |
JP5843740B2 (ja) | 2012-02-29 | 2016-01-13 | ユニ・チャーム株式会社 | 吸収性物品 |
JP5726121B2 (ja) | 2012-03-30 | 2015-05-27 | ユニ・チャーム株式会社 | 吸収性物品 |
EP2832329B1 (en) | 2012-03-30 | 2016-10-12 | Unicharm Corporation | Absorbent and absorbent article provided therewith |
JP5726120B2 (ja) | 2012-03-30 | 2015-05-27 | ユニ・チャーム株式会社 | 吸収性物品 |
JP6116178B2 (ja) | 2012-04-02 | 2017-04-19 | ユニ・チャーム株式会社 | 吸収性物品 |
JP5717686B2 (ja) | 2012-04-02 | 2015-05-13 | ユニ・チャーム株式会社 | 吸収性物品 |
JP5717685B2 (ja) * | 2012-04-02 | 2015-05-13 | ユニ・チャーム株式会社 | 吸収性物品 |
JP5713951B2 (ja) | 2012-04-02 | 2015-05-07 | ユニ・チャーム株式会社 | 吸収性物品 |
JP5858859B2 (ja) * | 2012-04-20 | 2016-02-10 | ユニ・チャーム株式会社 | 吸収体用の不織布および吸収性物品 |
JP5998000B2 (ja) | 2012-09-30 | 2016-09-28 | ユニ・チャーム株式会社 | 不織布及び吸収性物品 |
US9382663B2 (en) | 2012-11-13 | 2016-07-05 | Georgia-Pacific Consumer Products Lp | Apparatus, system, and process for determining characteristics of a surface of a papermaking fabric |
US9062416B2 (en) | 2012-11-13 | 2015-06-23 | Georgia-Pacific Consumer Products Lp | Apparatus, system, and process for determining characteristics of a surface of a papermaking fabric |
JP5712194B2 (ja) * | 2012-12-04 | 2015-05-07 | 花王株式会社 | 拭き取りシート用不織布基材 |
JP5712195B2 (ja) * | 2012-12-04 | 2015-05-07 | 花王株式会社 | 拭き取りシート用不織布基材 |
US20140324009A1 (en) * | 2013-04-29 | 2014-10-30 | Kimberly-Clark Worldwide, Inc. | Aperture-Patterned Fibrous Nonwoven Web |
US9744083B2 (en) * | 2013-10-04 | 2017-08-29 | Kimberly-Clark Worldwide, Inc. | Apertured outer cover for absorbent articles |
JP5931131B2 (ja) * | 2014-06-26 | 2016-06-08 | ユニ・チャーム株式会社 | 不織布 |
JP5683742B1 (ja) | 2014-06-30 | 2015-03-11 | ユニ・チャーム株式会社 | 吸収性物品及び該吸収性物品を備える着用物品 |
US10190244B2 (en) | 2015-07-31 | 2019-01-29 | The Procter & Gamble Company | Forming belt for shaped nonwoven |
EP4082500A1 (en) | 2015-07-31 | 2022-11-02 | The Procter & Gamble Company | Package of absorbent articles utilizing a shaped nonwoven |
US10858768B2 (en) | 2015-07-31 | 2020-12-08 | The Procter & Gamble Company | Shaped nonwoven |
SI3239378T1 (sl) | 2016-04-29 | 2019-06-28 | Reifenhaeuser Gmbh & Co. Kg Maschinenfabrik | Naprava in postopek za izdelavo kopren iz brezkončnih filamentov |
US10888471B2 (en) | 2016-12-15 | 2021-01-12 | The Procter & Gamble Company | Shaped nonwoven |
EP3576697B1 (en) | 2017-01-31 | 2023-07-12 | The Procter & Gamble Company | Shaped nonwoven |
WO2018144357A1 (en) | 2017-01-31 | 2018-08-09 | The Procter & Gamble Company | Shaped nonwoven fabrics and articles including the same |
DE112018000618T5 (de) | 2017-01-31 | 2019-12-12 | The Procter & Gamble Company | Geformtes Vlies |
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CN112243370A (zh) | 2018-06-19 | 2021-01-19 | 宝洁公司 | 具有功能成形的顶片的吸收制品及制造方法 |
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US11819393B2 (en) | 2019-06-19 | 2023-11-21 | The Procter & Gamble Company | Absorbent article with function-formed topsheet, and method for manufacturing |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4379799A (en) | 1981-02-20 | 1983-04-12 | Chicopee | Nonwoven fabric having the appearance of apertured, ribbed terry cloth |
JPH06330443A (ja) | 1993-05-18 | 1994-11-29 | Kao Corp | 立体穿孔シートの製造方法及びその装置 |
JP2002030557A (ja) * | 2000-04-25 | 2002-01-31 | Daiwabo Co Ltd | 絡合不織布とこれを用いた清拭シートおよび湿潤性シート |
EP1201213A2 (en) | 2000-10-31 | 2002-05-02 | Uni-Charm Corporation | Topsheet made of nonwoven fabric used in disposable wearing article |
Family Cites Families (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3458905A (en) * | 1966-07-05 | 1969-08-05 | Du Pont | Apparatus for entangling fibers |
US3486168A (en) * | 1966-12-01 | 1969-12-23 | Du Pont | Tanglelaced non-woven fabric and method of producing same |
US3485706A (en) * | 1968-01-18 | 1969-12-23 | Du Pont | Textile-like patterned nonwoven fabrics and their production |
US3681182A (en) * | 1970-03-24 | 1972-08-01 | Johnson & Johnson | Nonwoven fabric comprising discontinuous large holes connected by fiber bundles defining small holes |
US3766922A (en) * | 1970-08-28 | 1973-10-23 | Scott Paper Co | Throw-away boy and girl diapers |
US4016317A (en) * | 1972-11-13 | 1977-04-05 | Johnson & Johnson | Nonwoven fabric |
US4186463A (en) * | 1974-09-17 | 1980-02-05 | The Kendall Company | Apparatus for making biaxially oriented nonwoven fabrics and method of making same |
US4016319A (en) * | 1974-09-17 | 1977-04-05 | The Kendall Company | Biaxially oriented nonwoven fabric having long and short fibers |
US4038452A (en) * | 1975-05-07 | 1977-07-26 | Asahi Kasei Kogyo Kabushiki Kaisha | Bulky non-woven fabric |
US4190695A (en) * | 1978-11-30 | 1980-02-26 | E. I. Du Pont De Nemours And Company | Hydraulically needling fabric of continuous filament textile and staple fibers |
JPS56119249A (en) * | 1980-02-27 | 1981-09-18 | Uni Charm Corp | Sanitary article |
ZA82846B (en) * | 1981-02-27 | 1983-01-26 | Dexter Ltd C H | Method and apparatus for making a patterned non-woven fabric |
US4612226A (en) * | 1982-01-22 | 1986-09-16 | Chicopee | Fabric having excellent wiping properties |
US4787947A (en) * | 1982-09-30 | 1988-11-29 | Chicopee | Method and apparatus for making patterned belt bonded material |
US4714466A (en) * | 1985-01-25 | 1987-12-22 | Kao Corporation | Absorbent member for tampon |
US4735842A (en) * | 1985-09-26 | 1988-04-05 | Chicopee | Light weight entangled non-woven fabric and process for making the same |
US4695500A (en) * | 1986-07-10 | 1987-09-22 | Johnson & Johnson Products, Inc. | Stabilized fabric |
JPH0737702B2 (ja) * | 1986-12-31 | 1995-04-26 | ユニ・チヤ−ム株式会社 | 開孔模様を有する不織布 |
JP3032304B2 (ja) * | 1990-12-21 | 2000-04-17 | 花王株式会社 | 吸収性物品の表面材 |
CA2090795A1 (en) * | 1992-11-19 | 1994-05-20 | Donald Joseph Sanders | Method and apparatus for sealing absorbent materials in an absorbent product |
EP0636727A1 (en) * | 1993-07-27 | 1995-02-01 | Japan Vilene Company, Ltd. | A non-woven fabric and method for producing the same |
JP4176145B2 (ja) * | 1993-10-21 | 2008-11-05 | ザ プロクター アンド ギャンブル カンパニー | 月経吸収性構造 |
JP2986689B2 (ja) * | 1994-08-29 | 1999-12-06 | ユニ・チャーム株式会社 | 不織布ワイパーの製造方法 |
JP3058572B2 (ja) * | 1994-12-13 | 2000-07-04 | ユニ・チャーム株式会社 | 体液吸収性物品 |
US5897547A (en) * | 1995-02-16 | 1999-04-27 | The Procter & Gamble Company | Absorbent article with elastically extensible landing member |
JP2875504B2 (ja) * | 1995-03-03 | 1999-03-31 | 花王株式会社 | 吸収性物品の表面シート |
MY117643A (en) * | 1996-02-29 | 2004-07-31 | Uni Charm Corp | Liquid-permeable topsheet for body exudates absorbent article, apparatus and method for manufacturing same |
AU6464698A (en) * | 1997-03-21 | 1998-10-20 | Kimberly-Clark Worldwide, Inc. | Dual-zoned absorbent webs |
JP3510089B2 (ja) * | 1997-09-22 | 2004-03-22 | ユニ・チャーム株式会社 | 体液吸収性物品の透液性表面シートおよび該シートの製造方法 |
JP3366849B2 (ja) * | 1997-12-26 | 2003-01-14 | ユニ・チャーム株式会社 | 開孔不織布の製造方法 |
SG83698A1 (en) * | 1998-01-16 | 2001-10-16 | Uni Charm Corp | Method of manufacturing a water disintegratable non-woven fabric and the water disintegratable non-woven fabric |
JPH11342154A (ja) * | 1998-06-03 | 1999-12-14 | Uni Charm Corp | 体液吸収性物品 |
US6855424B1 (en) * | 1998-12-28 | 2005-02-15 | Kinberly-Clark Worldwide, Inc. | Breathable composite elastic material having a cellular elastomeric film layer and method of making same |
JP3623392B2 (ja) * | 1999-03-18 | 2005-02-23 | ユニ・チャーム株式会社 | 不織布の製造方法 |
US6867156B1 (en) * | 1999-04-30 | 2005-03-15 | Kimberly-Clark Worldwide, Inc. | Materials having z-direction fibers and folds and method for producing same |
JP3748743B2 (ja) * | 1999-10-04 | 2006-02-22 | ユニ・チャーム株式会社 | 吸収性物品およびその製造方法 |
JP3537775B2 (ja) * | 2000-03-24 | 2004-06-14 | 花王株式会社 | 嵩高シート及びその製造方法 |
US6610173B1 (en) * | 2000-11-03 | 2003-08-26 | Kimberly-Clark Worldwide, Inc. | Three-dimensional tissue and methods for making the same |
US6582798B2 (en) * | 2001-06-06 | 2003-06-24 | Tredegar Film Products Corporation | Vacuum formed film topsheets having a silky tactile impression |
US6802932B2 (en) * | 2001-06-08 | 2004-10-12 | Uni-Charm Corporation | Absorbent article and method of manufacturing the same |
JP4146192B2 (ja) * | 2001-09-11 | 2008-09-03 | ユニ・チャーム株式会社 | 吸収性物品 |
US20040204697A1 (en) * | 2003-04-11 | 2004-10-14 | Litvay John D. | Absorbent articles containing absorbent cores having at least one outer layer containing microwells |
US20030232558A1 (en) * | 2002-03-06 | 2003-12-18 | Polymer Group, Inc. | Method for improved aperture clarity in three-dimensional nonwoven fabrics and the products thereof |
JP4244128B2 (ja) * | 2002-10-03 | 2009-03-25 | ユニ・チャーム株式会社 | 陰唇間パッド構成用の表面側シートおよび陰唇間パッド |
WO2005122817A1 (ja) * | 2004-06-17 | 2005-12-29 | Kuraray Fastening Co., Ltd. | 布製面ファスナー |
JP5123505B2 (ja) * | 2006-06-23 | 2013-01-23 | ユニ・チャーム株式会社 | 不織布 |
JP5328088B2 (ja) * | 2006-06-23 | 2013-10-30 | ユニ・チャーム株式会社 | 不織布 |
JP5069891B2 (ja) * | 2006-06-23 | 2012-11-07 | ユニ・チャーム株式会社 | 不織布 |
JP5123512B2 (ja) * | 2006-06-23 | 2013-01-23 | ユニ・チャーム株式会社 | 不織布 |
JP5123511B2 (ja) * | 2006-06-23 | 2013-01-23 | ユニ・チャーム株式会社 | 不織布 |
JP5069890B2 (ja) * | 2006-06-23 | 2012-11-07 | ユニ・チャーム株式会社 | 不織布 |
JP5123513B2 (ja) * | 2006-06-23 | 2013-01-23 | ユニ・チャーム株式会社 | 吸収体 |
JP5328113B2 (ja) * | 2006-06-23 | 2013-10-30 | ユニ・チャーム株式会社 | 吸収性物品 |
JP5328089B2 (ja) * | 2006-06-23 | 2013-10-30 | ユニ・チャーム株式会社 | 多層不織布及び多層不織布の製造方法 |
-
2006
- 2006-09-29 JP JP2006270111A patent/JP5154048B2/ja not_active Expired - Fee Related
-
2007
- 2007-05-15 US US11/748,712 patent/US20070298667A1/en not_active Abandoned
- 2007-06-06 TW TW96120382A patent/TW200804642A/zh not_active IP Right Cessation
- 2007-06-08 WO PCT/JP2007/061601 patent/WO2007148545A1/ja active Application Filing
- 2007-06-08 KR KR1020087026833A patent/KR20090023344A/ko not_active Application Discontinuation
- 2007-06-08 EP EP07744921A patent/EP2034066A4/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4379799A (en) | 1981-02-20 | 1983-04-12 | Chicopee | Nonwoven fabric having the appearance of apertured, ribbed terry cloth |
JPH06330443A (ja) | 1993-05-18 | 1994-11-29 | Kao Corp | 立体穿孔シートの製造方法及びその装置 |
JP2002030557A (ja) * | 2000-04-25 | 2002-01-31 | Daiwabo Co Ltd | 絡合不織布とこれを用いた清拭シートおよび湿潤性シート |
EP1201213A2 (en) | 2000-10-31 | 2002-05-02 | Uni-Charm Corporation | Topsheet made of nonwoven fabric used in disposable wearing article |
JP2002136547A (ja) * | 2000-10-31 | 2002-05-14 | Uni Charm Corp | 使い捨て着用物品の不織布製表面シート |
Non-Patent Citations (1)
Title |
---|
See also references of EP2034066A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109152674A (zh) * | 2016-05-13 | 2019-01-04 | 尤妮佳股份有限公司 | 吸收性物品用的无纺布 |
CN109152674B (zh) * | 2016-05-13 | 2021-04-27 | 尤妮佳股份有限公司 | 吸收性物品用的无纺布 |
Also Published As
Publication number | Publication date |
---|---|
JP5154048B2 (ja) | 2013-02-27 |
US20070298667A1 (en) | 2007-12-27 |
KR20090023344A (ko) | 2009-03-04 |
TWI343430B (ja) | 2011-06-11 |
TW200804642A (en) | 2008-01-16 |
JP2008025085A (ja) | 2008-02-07 |
EP2034066A1 (en) | 2009-03-11 |
EP2034066A4 (en) | 2011-05-18 |
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