JP6564656B2 - Designable sheet and method for producing the designed sheet - Google Patents

Description

  The present invention relates to a design sheet used as a skin material for various products that require design properties and a method for producing the same.

For example, the design of sheet used as the upper cladding material of sports shoes, such as running shoes, laminates have been known bonded Messi Interview dough fiber structure sheet, such as artificial leather with an adhesive.

For example, Patent Document 1, artificial leather, suede fabric, suede knitted, and synthetic leather such as a skin material, a heat-adhesive resin layer are laminated, further Messi Interview dough is an internal upper surface material of the shoe The laminated body formed by thermocompression bonding the laminated body which laminated | stacked was disclosed.

  Patent Document 2 below discloses a laminated fabric obtained by laminating a nonwoven fabric web made of fibers having a diameter of less than 1 μm on at least one side of a fabric via an adhesive.

Thus, Patent Document 1 and Patent Document 2 discloses a laminate formed by bonding a fiber structure sheet Messi Interview fabrics and fabric as a layer for decoration.

JP 2011-117104 A JP 2010-030289 A

  In recent years, with the diversification of consumer needs, new designs have been sought as shoe materials for shoes, skin materials for clothing, bags and accessories. An object of this invention is to provide the designable sheet | seat which equips the surface with the soft tactile sense by a fiber structure, and the uneven | corrugated pattern with a three-dimensional effect, and its manufacturing method.

One aspect of the present invention includes a main Tsu push from fabric having a surface having irregularities composed of a concave portion is a portion where the yarn convex portion is a portion which the yarn is present is absent, heat-adhesive resin Messi Interview dough in and a fiber structure to form a contact wear has been surface, the surface of the surface layer, a design sheet having a three-dimensional uneven pattern that is exposed irregularities Messi Interview fabric as a mold. Such a designable sheet is provided with a concavo-convex pattern having a soft tactile sensation due to the fiber structure and a three-dimensional feeling on the surface.

  Moreover, it is preferable that a concavo-convex pattern has a recessed part and a convex part whose mutual height difference is 100 micrometers or more from the point which is excellent in the three-dimensional effect of a concavo-convex pattern.

Further, Messi Interview dough has more thickness 1 mm, a surface layer containing a fibrous structure preferably have a thickness of less than 1 mm. In such a case, it is preferable from the point that the uneven | corrugated pattern excellent in a three-dimensional effect is easy to be formed on the surface of a surface layer.

Further, Messi Interview fabric has a three-layer structure textile tissue, when a layer thickness of at least 2mm is excellent in three-dimensional effect, that easily uneven pattern is formed with a large concave and convex portions of the height difference To preferred.

  Moreover, it is preferable that the concavo-convex pattern is a mesh having an opening of 3 mm or more from the viewpoint that the boundary between the concave portion and the convex portion is clearly formed.

  Moreover, it is preferable that the fiber structure is a non-woven fabric of ultrafine fibers from the viewpoint of easily obtaining a concavo-convex pattern rich in three-dimensional feeling with a large difference in height.

  Moreover, it is preferable that the fiber structure is an artificial leather since a leather-like appearance rich in design can be obtained.

Also, it is transferred the uneven pattern in Table layer in order to have a heat-adhesive resin layer between the mesh Interview fabrics and fibrous structure.

Further, another aspect of the present invention, main Tsu sheet having a surface having a having more than 1mm thick, consisting of a concave portion is a convex portion and a portion where the thread is not present is a portion which the yarn is present irregularities forming a Interview fabrics, and fibrous structures comprising a superfine fiber nonwoven fabric having a thickness of 1 mm, and the heat-adhesive resin sheet interposed between the Messi Interview fabrics and fibrous structure, a stack of repeated process and the stack comprises a step of hot pressing, and in the step of hot pressing method of the design sheet to form a standing body specific rugged pattern irregularities Messi Interview fabric to the surface of the fiber structure as a mold It is. According to such a method, it is preferable from the viewpoint of easily obtaining a designable sheet having a soft tactile sensation due to the fiber structure and a concavo-convex pattern rich in three-dimensionality on the surface.

  ADVANTAGE OF THE INVENTION According to this invention, the designable sheet | seat provided with the soft tactile sense by a fiber structure and a three-dimensional uneven | corrugated pattern on the surface can be obtained.

FIG. 1 is a schematic diagram of a designable sheet 10 of the present embodiment. FIG. 2 is a schematic diagram showing a layer structure of the stack 20 for obtaining the designable sheet 10 of the present embodiment. FIG. 3 is a schematic process diagram for explaining a manufacturing process of the designable sheet 10 of the present embodiment.

An embodiment of a designable sheet according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic view of a designable sheet 10 according to the present embodiment, FIG. 1A is a top view, and FIG. 1B is a cross-sectional view taken along the line BB ′ of FIG. In Figure 1, 1 is a mesh Interview fabric having an uneven surface, is 2 a fiber structure to form a surface layer, 3 is an adhesive layer for bonding the mesh Interview fabric 1 and the fiber structure 2.

Mesh fabric 1, the irregular surface of the mesh is formed, specifically, has a region 1a in which yarns forming the mesh Interview dough 1 are present densely and an opening v having portions thread is not present, The region 1a and the opening v form a concavo-convex pattern. Hereinafter, referred to the convex portion of the mesh Interview dough region 1a yarn Messi Interview fabric 1 is present, the opening v yarn Messi Interview fabric 1 is not present with recess Messi Interview fabric 1.

  An example of a specific method for producing the designable sheet of the present embodiment will be described in detail with reference to FIGS.

As shown in FIG. 2 and FIG. 3 (a), in the manufacturing method of the design sheet of the present embodiment, first, Messi Interview dough 1 having an uneven surface, and the thermally adhesive resin sheet 3a, the fiber structure sheet A stack 20 is formed by sequentially stacking 2a.

Then, as shown in FIG. 3B, the stack 20 is placed between a lower mold 5a and an upper mold 5b forming a hot press mold, and the lower mold 5a and the upper mold are placed. Clamp 5b and heat press. By hot pressing, and Messi Interview fabric 1 and the fiber structure sheet 2a, it is bonded by heat-adhesive resin sheet 3a.

Fiber structure sheet 2a laminated Messi Interview fabric 1 is supported in the region 1a is a convex portion of the mesh Interview fabric 1, are sufficiently supported in the opening v is a recess Messi Interview fabric 1 Absent. Therefore, when the stack is compressed by hot pressing, the region facing the opening v of the fiber structure sheet 2a is more bent and is easily pushed into the opening v that is a recess. As a result, recesses and protrusions Messi Interview fabric 1 becomes a mold surface having an uneven pattern having a concave portion c and protrusions d on the surface of the fiber structure sheet 2a is formed.

In a state where the area of the fiber structure sheet 2a opposing to the portion of the recess Messi Interview fabric 1 is pushed into the deflection or recess, heat-adhesive resin sheet 3a is Messi Interview fabric 1 and the fiber structure sheet 2a Glue. And the recessed part c and the convex part d of the fiber structure sheet | seat 2a are fixed by cooling the lower metal mold | die 5a and the upper metal mold | die 5b. And as shown in FIG.3 (c), the design which has the uneven | corrugated pattern which has the recessed part c and the convex part d on the surface as shown in FIG. 1 by opening the lower metal mold | die 5a and the upper metal mold | die 5b. Sheet 10 is obtained.

Conditions of thermal press, become convex portions of the concave portions and mesh Interview fabric Messi Interview fabric a type, so long as those are conditions that can transfer the concave and convex portions on the surface of the fiber structure sheet is not particularly limited. When the surface temperature or press pressure of the heating roll or hot press is too low, the concave and convex portions tend not to be sufficiently transferred to the surface of the fiber structure sheet. The surface temperature and the pressing pressure are appropriately selected according to the characteristics of various materials.

In this manner, the design sheet 10 having a surface three-dimensional uneven pattern has been granted an uneven surface of the mesh Interview fabric 1 as a mold is obtained. The height difference of the concavo-convex pattern is not particularly limited, but is preferably 100 μm or more, more preferably 150 μm or more, and particularly preferably 400 μm or more from the viewpoint of providing a concavo-convex pattern rich in stereoscopic effect.

Next, Messi Interview dough used to make the design of sheet of the present embodiment, the fiber structure sheet, and the heat-adhesive resin sheet will be described.

Messi Interview fabric used in the present embodiment is used without particular limitation as long as mesh Interview fabric having an uneven surface with a height difference. Examples Messi Interview fabric, for example, and Messi Interview fabrics monolayer include Messi Interview fabric having two or more layers. Among these, the thickness of large, double raschel mesh material having a three-layer structure textile tissue, large height difference, to a large opening of the mesh by a honeycomb structure or the like may have a mesh, the mesh Interview fabric It is particularly preferable from the viewpoint of easily imparting a concavo-convex pattern with the concavo-convex surface as a mold to the surface of the fiber structure.

The thickness of the mesh Interview dough, 1 mm or more, more not less 2mm or more, preferably an uneven pattern rich in stereoscopic effect having a large height difference from the point that can be formed on the surface.

The shape of the openings forming the mesh pattern of the mesh Interview fabric, a honeycomb shape, a square shape is not particularly limited, such as circular or elliptical shape. Moreover, the opening which shows the magnitude | size of opening is although it does not specifically limit, 3 mm or more, Especially 4 mm or more is preferable from the point which is easy to form the uneven | corrugated pattern rich in design property. If the eye opening of Messi Interview dough is too small, there is a tendency that the contours of the uneven pattern becomes unclear. Incidentally mesh among the openings of the mesh forming the mesh Interview dough, means the distance shortest part.

Examples of the fiber structure sheet used in the present embodiment include non-woven fabrics, woven fabrics, woven fabrics, knitted fabrics, and the like. Further, the fiber structure sheet may be a leather-like sheet such as artificial leather or synthetic leather containing the fiber structure. Among the fibrous structures, non-woven fabrics, particularly ultrafine fiber non-woven fabrics, and artificial leather containing them are particularly preferred. An ultrafine fiber nonwoven fabric has a high fiber density, and thus the apparent density tends to be high, and even if it is thin, it has high homogeneity. For this reason, it preferred the uneven surface of Messi Interview dough and mold was a high uneven pattern of the three-dimensional effect from the viewpoint of easy to applied to the surface. The case of using an ultrafine fiber nonwoven fabric will be described in detail as a representative example.

  The nonwoven fabric of ultrafine fibers can be obtained, for example, by entanglement treatment of ultrafine fiber-generating fibers such as sea-island type (matrix-domain type) composite fibers and the ultrafine fiber treatment. In the present embodiment, the case where the sea-island type composite fiber is used will be described in detail. However, even if an ultrafine fiber-generating fiber other than the sea-island type composite fiber is used, it is directly used without using the ultrafine fiber-generating fiber. Ultra fine fibers may be spun. In addition, as a specific example of the ultrafine fiber generation type fiber other than the sea-island type composite fiber, a plurality of ultrafine fibers are formed by lightly bonding immediately after spinning, and a plurality of ultrafine fibers are formed by unraveling by mechanical operation. Such as a split-divided fiber, or a petal-type fiber in which a plurality of resins are alternately gathered in a petal shape in the melt spinning process, and any fiber that can form ultrafine fibers is used without particular limitation. It is done.

  In the production of the ultrafine fiber nonwoven fabric, the island of the sea-island type composite fiber that is the resin component that forms the sea component (matrix component) of the sea-island type composite fiber that can be selectively removed and the resin component that forms the ultrafine fiber are first introduced. A sea-island type composite fiber is obtained by melt spinning and stretching a thermoplastic resin constituting the component (domain component).

  As the sea component thermoplastic resin, a thermoplastic resin having a different solubility in a solvent or a decomposability in a decomposing agent is selected from the island component resin. Specific examples of the thermoplastic resin constituting the sea component include, for example, a water-soluble polyvinyl alcohol resin, polyethylene, polypropylene, polystyrene, ethylene propylene resin, ethylene vinyl acetate resin, styrene ethylene resin, styrene acrylic resin, and the like. . Among these, polyvinyl alcohol resins, particularly ethylene-modified polyvinyl alcohol resins, are preferable because they are easily contracted by wet heat or hot water.

  The thermoplastic resin, which is a resin component that forms island components and forms ultrafine fibers, is not particularly limited as long as it is a resin capable of forming sea-island composite fibers and ultrafine fibers. Specifically, for example, polyethylene terephthalate (PET), isophthalic acid modified PET, sulfoisophthalic acid modified PET, polybutylene terephthalate, polyhexamethylene terephthalate and other aromatic polyesters; polylactic acid, polyethylene succinate, polybutylene succinate, Aliphatic polyesters such as polybutylene succinate adipate, polyhydroxybutyrate-polyhydroxyvalerate resin; polyamides such as polyamide 6, polyamide 66, polyamide 10, polyamide 11, polyamide 12, polyamide 6-12; polypropylene, polyethylene, polybutene , Polyolefins such as polymethylpentene and chlorinated polyolefin. These may be used alone or in combination of two or more. In these, since the aromatic polyester whose glass transition temperature (Tg) is 100-120 degreeC, and also 105-115 degreeC is excellent in the drawability at the time of softening by heating, the uneven | corrugated pattern with a large height difference is large. It is preferable from the viewpoint of excellent transferability.

  Tg is measured using a dynamic viscoelasticity measuring device (for example, FT Leospectra DDVIV manufactured by Rheology Co., Ltd.) by fixing a test piece having a width of 5 mm and a length of 30 mm between chucks with a spacing of 20 mm. It can be obtained by measuring the dynamic viscoelastic behavior under the conditions of 250 ° C., temperature rising rate 3 ° C./min, strain 5 μm / 20 mm, and measurement frequency 10 Hz.

  Specific examples of the aromatic polyester having a Tg of 100 to 120 ° C. include, for example, modified polyethylene terephthalate containing a copolymer component that disturbs a linear structure as a constituent unit of polyethylene terephthalate, particularly isophthalic acid, phthalic acid. And modified polyethylene terephthalate containing an asymmetric aromatic carboxylic acid such as 5-sodium sulfoisophthalic acid or an aliphatic dicarboxylic acid such as adipic acid as a copolymerization component in a predetermined ratio. More specifically, modified polyethylene terephthalate containing 2 to 12 mol% of isophthalic acid unit as a monomer component is preferable.

  As a method for producing a nonwoven fabric of ultrafine fibers, for example, a sea-island composite fiber is melt-spun to produce a web, the web is entangled, and then sea components are selectively removed from the sea-island composite fiber. The method of forming is mentioned. As a method for producing a web, a long-fiber sea-island composite fiber spun by a spunbond method or the like is collected on a net without being cut to form a long-fiber web, or a long fiber is cut into staples. And a method of forming a short fiber web. Among these, a long fiber web is particularly preferable because it is excellent in denseness and fullness. In addition, the formed web may be subjected to a fusion treatment in order to impart shape stability.

  In addition, a long fiber means a continuous fiber that is not a short fiber intentionally cut after spinning. More specifically, for example, it means a fiber that is not a short fiber intentionally cut so that the fiber length is about 3 to 80 mm. It is preferable that the fiber length of the sea-island type composite fiber before the ultrafine fiber formation is 100 mm or more, and it can be technically manufactured and unavoidably cut in the manufacturing process. The fiber length may be km or more. In addition, a part of long fiber may be inevitably cut | disconnected and become a short fiber in a manufacturing process by the needle punch at the time of the entanglement mentioned later, or buffing of the surface.

  Sea island type composite fiber is densified by performing fiber shrinkage treatment such as entanglement treatment and heat shrink treatment with water vapor in any process from removing sea components of sea island type composite fiber to forming ultra fine fiber can do. Examples of the entanglement treatment include a method of stacking about 5 to 100 webs and performing needle punching or high-pressure water flow treatment.

  The sea component of the sea-island type composite fiber is removed by dissolution or decomposition at an appropriate stage after the web is formed. The sea-island type composite fibers are made into ultrafine fibers by such decomposition removal or dissolution extraction removal, and a fiber bundle-like ultrafine fiber nonwoven fabric is formed. The apparent density of the non-woven fabric of ultrafine fibers in a bundle of fibers may be further increased by heat shrink treatment, a heating roll, or heat pressing.

  The fineness of the ultrafine fibers is not particularly limited, but is preferably 0.001 to 0.9 dtex, more preferably 0.01 to 0.6 dtex, and particularly preferably 0.02 to 0.5 dtex. When the fineness is too high, there is a tendency that a non-woven fabric with insufficient density is obtained. Moreover, it is difficult to produce a fiber having a fineness that is too low.

  The ultrafine fiber nonwoven fabric thus obtained is subjected to thickness adjustment and flattening treatment as necessary. Specifically, slice processing and buffing processing are performed. In this way, an ultrafine fiber nonwoven fabric is obtained.

  In addition, the voids between the fibers of the fiber structure contain a polymer elastic body as necessary for the purpose of imparting shape stability, fixing a colorant, or imparting a sense of fulfillment. May be. The kind of polymer elastic body is not particularly limited. Specific examples thereof include various polyurethanes such as polycarbonate polyurethane, polyester polyurethane, and polyether polyurethane, acrylic elastic bodies, polyurethane acrylic composite elastic bodies, polyvinyl chloride, and synthetic rubber. Among these, polyurethane is preferable from the viewpoint of excellent adhesiveness and mechanical properties.

  Examples of a method for applying a polymer elastic body to a fiber structure include a method in which a polymer elastic body is impregnated with a solution or emulsion of the polymer elastic body and then the polymer elastic body is solidified. As a method of impregnating a fiber structure with a solution or emulsion of a polymer elastic body, a process of immersing the solution or emulsion in the fiber structure so as to be in a predetermined impregnation state and squeezing with a press roll or the like is performed once or plural times. The dip nip method is preferably used. As other methods, a bar coating method, a knife coating method, a roll coating method, a comma coating method, a spray coating method, or the like may be used.

  The polymer elastic body is fixed to the fiber structure by impregnating the fiber structure with a solution or emulsion of the polymer elastic body and coagulating the polymer elastic body.

  The content of the polymer elastic body in the fiber structure is preferably 0 to 40% by mass, more preferably 5 to 35% by mass, and particularly preferably 8 to 30%. When the content ratio of the polymer elastic body is too high, the formability tends to decrease.

  In addition, a silver surface-like leather-like sheet having a silver-like leather-like appearance can be obtained by laminating and forming a silver-tone resin layer on one surface of the fiber structure. Further, by raising one surface of the fiber structure, a raised leather-like sheet having a raised appearance can be obtained.

  As a method of forming a silver surface-like leather-like sheet, a method of forming a silver surface-like resin layer containing a polymer elastic body such as polyurethane on one surface of a fiber structure by a dry surface forming method or a direct coating method Is mentioned. In the dry surface-forming method, after forming a resin film containing a polymer elastic body on a support substrate such as a release paper, an adhesive is applied to the surface of the resin film and bonded to one surface of the fiber structure, This is a method of forming a silver-tone resin layer by pressing and adhering if necessary, and peeling the release paper. The direct coating method is a method in which a liquid resin or a resin liquid containing a polymer elastic body is directly applied to one surface of a fiber structure and then cured to form a silver surface-like resin layer.

  As the polymer elastic body for forming the silver-tone resin layer, polyurethane, an acrylic elastic body, or the like conventionally used for forming a silver-tone resin layer can be used. Specific examples thereof include various polyurethanes such as polycarbonate polyurethane, polyester polyurethane and polyether polyurethane, acrylic elastic bodies, polyurethane acrylic composite elastic bodies, polyvinyl chloride elastic bodies, synthetic rubbers and the like.

  The thickness of the silver-tone resin layer is not particularly limited. For example, a silver-tone bark-like sheet having an excellent balance between mechanical properties and texture is about 0.02 to 0.2 mm. It is preferable from the point obtained.

  Moreover, as a method of forming a raised leather-like sheet, a method of forming a suede-like or nubuck-like decorative surface that has been subjected to raising treatment by buffing the surface of the fiber structure can be mentioned. The buffing process is a process of raising fibers on the surface of the fiber structure using sandpaper or the like.

The thickness of the fiber structure sheet is preferably 0.1 to 1 mm, more preferably 0.15 to 0.8 mm, and particularly preferably 0.2 to 0.5 mm. When the fiber structure sheet is too thick, it tends to prevent the irregularities are sufficiently transferred when the mold an uneven surface of the mesh Interview fabric. If it is too thin, the thickness tends to be non-uniform.

The apparent density of the fiber structure sheet is 0.45 g / cm ³ or more, preferably 0.50 to 0.85 g / cm ³ , particularly preferably 0.50 to 0.80 g / cm ³ . In the case of such a high apparent density, even if it is thin, the homogeneity is high. Preferred an uneven surface of the mesh Interview dough mold was a three-dimensional uneven pattern from the viewpoint of easily applied to the surface for that purpose.

The heat-adhesive resin sheet used in this embodiment, by a stack which is formed by interposing between the fiber structure sheet and the mesh Interview fabrics hot-pressed, and solidified after softened or melted by heating when a adhesive sheet for bonding a fiber structure sheet and the mesh Interview dough. Specific examples of the resin that forms such a heat-adhesive resin sheet include a hot-melt type polyurethane resin having a softening temperature of about 80 to 140 ° C., and preferably a softening temperature of about 90 to 120 ° C.

  The thickness of the heat-adhesive resin sheet is not particularly limited, but is preferably about 0.03 to 0.2 mm, more preferably about 0.05 to 0.1 mm.

  As described above, the designable sheet of the present embodiment described above is preferably used for applications such as a shell material for shoes such as sports shoes, a light work such as bags and miscellaneous goods, and interiors.

  Hereinafter, the present invention will be specifically described by way of examples. The scope of the present invention is not limited by the examples.

First, the production of the nonwoven fabric used in this example will be described.
(Manufacture of artificial leather)
Individually melted ethylene-modified polyvinyl alcohol as the sea component thermoplastic resin and isophthalic acid-modified polyethylene terephthalate (content of isophthalic acid unit of 6.0 mol%) having a Tg of 110 ° C as the island component thermoplastic resin. I let you. Then, each molten resin was supplied to a plurality of spinning nozzles in which a large number of nozzle holes were arranged in parallel so as to form a cross-section in which 25 island components having a uniform cross-sectional area were distributed in the sea component. . And the molten fiber was discharged from the nozzle hole set to the nozzle | cap | die temperature of 260 degreeC.

Then, the molten fiber discharged from the nozzle hole was drawn by suction with an air jet / nozzle type suction device, and a 2.1 dtex sea-island type composite long fiber was spun. The spun sea-island composite long fibers were continuously deposited on the movable net while being sucked from the back of the net. Then, the sea-island type composite long fibers were peeled from the net and hot-pressed by passing between a lattice-pattern metal roll having a surface temperature of 75 ° C. and a back roll. In this way, a long fiber web having a basis weight of 34 g / m ² was obtained.

After applying the oil agent to the surface of the obtained long fiber web, 10 sheets of the long fiber web were overlapped using a cross wrapping apparatus to form an overlap web having a total basis weight of 340 g / m ² . And the three-dimensional entanglement process was carried out by needle punching the overlap web.

And the obtained entangled web was densified by the wet heat shrink process. The basis weight of the densified entangled web was 750 g / m ² and the apparent density was 0.52 g / cm ³ . The apparent density was adjusted to 0.60 g / cm ³ by dry-heat roll pressing to further densify the entangled web.

  The densified entangled web was impregnated with polyurethane emulsion and dried. In this way, a polyurethane-entangled web composite having a polyurethane / entangled web mass ratio of 18/82 was formed.

  Next, the polyurethane-entangled web composite was immersed in hot water at 95 ° C. for 20 minutes to extract and remove sea components contained in the sea-island composite long fiber, and dried in a drying furnace at 120 ° C. Then, by grinding the surface, three types of non-woven fabrics of 0.45 mm, 0.75 mm, and 0.95 mm were obtained.

The apparent density of the obtained nonwoven fabric was 0.53 g / cm ³ , and the mass ratio of nonwoven fabric / polyurethane was 78/22. Moreover, the fineness of the ultrafine fibers forming the nonwoven fabric was 0.08 dtex.

  On the other hand, a DMF solution of polycarbonate polyurethane was applied as a skin layer on the release paper, and dried to form a silver surface-tone resin film having a thickness of 0.05 mm.

  And the silver surface tone resin film was adhere | attached on each nonwoven fabric. In this way, three types of silver-tone artificial leather having thicknesses of 0.5 mm, 0.8 mm, and 1.0 mm, respectively, were obtained.

[Example 1]
As the fiber structure sheet, a silver-tone artificial leather having a thickness of 0.5 mm was used. Further, as the mesh Interview fabric, a thickness of 3 mm, was prepared double raschel mesh eyes open 4mm square shaped reticulated (open) is formed. In addition, a thermoplastic polyurethane sheet (softening point 105 ° C., polyether type) having a thickness of 0.05 mm was prepared as a thermoadhesive resin sheet.

Then, Messi Interview dough, to form a stack on top of the thermoplastic polyurethane sheet and artificial leather in order. Then, the stack hot press by hot pressing at (surface temperature 125 ° C., pressing pressure 0.05 MPa, pressing time 60 seconds), the surface of the grain-finished artificial leather, the square mesh of mesh Interview fabric A design sheet having a three-dimensional concavo-convex pattern as a mold was obtained. The height difference between the concave portion and the convex portion on the surface of the obtained designable sheet was 550 μm.

[Example 2]
In Example 1, as a fiber structure sheet, the design properties were the same except that a silver surface-like artificial leather having a thickness of 0.8 mm was used instead of the silver-like artificial leather having a thickness of 0.5 mm. Sheets were manufactured and evaluated. The height difference between the concave and convex portions on the surface of the obtained designable sheet was 260 μm.

[Example 3]
In Example 1, instead of the silver surface-like artificial leather having a thickness of 0.5 mm as the fiber structure sheet, a design sheet was similarly obtained except that a silver-tone artificial leather having a thickness of 1 mm was used. Manufactured and evaluated. The height difference between the concave and convex portions on the surface of the obtained designable sheet was 120 μm.

[Comparative Example 1]
In Example 1, in place of the mesh Interview dough, to produce the design sheet in the same manner except for using the polyester fabric having a thickness of 0.5 mm, was evaluated. A three-dimensional uneven pattern did not appear on the surface of the resulting design sheet.

[Comparative Example 2]
In Example 1, instead of the silver surface artificial leather having a thickness of 0.5 mm as the fiber structure sheet, the silver surface artificial leather having a thickness of 1 mm and including a nonwoven fabric of PET fiber having a fineness of 3 dtex A designable sheet was produced and evaluated in the same manner except that was used. A three-dimensional uneven pattern did not appear on the surface of the resulting design sheet.

  Adhering 0.5 to 1 mm silver-tone artificial leather to a double raschel mesh material with a thickness of 3 mm and a square stitch with 4 mm openings (openings) to transfer the irregularities of the double raschel mesh material The designable sheet obtained in the formed Examples 1 to 3 was formed with a concavo-convex pattern that was sharply shaped with a height difference of 120 to 550 μm. In particular, the design sheet obtained in Examples 2 and 3 using a silver-tone artificial leather with a thickness of 0.5 to 0.8 mm had an uneven pattern with a very large height difference. On the other hand, the three-dimensional concavo-convex pattern did not appear in the designable sheet obtained in Comparative Example 1 using a polyester woven fabric having a thickness of 0.5 mm. In addition, a three-dimensional uneven pattern did not appear on the design sheet obtained in Comparative Example 1 using a 1 mm thick silver surface artificial leather containing a PET fiber nonwoven fabric with a fineness of 3 dtex.

  The designable sheet obtained in the present invention is particularly preferably used for applications such as a leather material such as a running shoe, a light material such as a bag, miscellaneous goods, and interiors.

DESCRIPTION OF SYMBOLS 1 Mesh material 2 Fiber structure 2a Fiber structure sheet 3 Adhesive layer 3a Thermal adhesive resin sheet 5a Lower mold 5b Upper mold 10 Designable sheet 20 Stack body v Opening part c Concave part d Convex part

Claims (8)

A main Tsu push from fabric having a surface having irregularities composed of a concave portion is a portion where the yarn convex portion is a portion in which the yarn is present is absent, the surface layer which is contact wear thermally adhesive resin to the mesh Interview dough A fibrous structure forming
Design sheet, wherein the surface layer of the surface, having a three-dimensional uneven pattern that the unevenness allowed out table as the type of the mesh Interview dough.   The design sheet according to claim 1, wherein the concavo-convex pattern has a concave portion and a convex portion having a height difference of 100 µm or more. The Messi Interview fabric has a thickness of more than 1 mm, the design sheet according to claim 1 or 2 wherein the surface layer has a thickness of 1 mm. The Messi Interview fabric has a three-layer structure textile tissue, design sheet according to any one of claims 1 to 3 is a layer thickness of at least 2 mm.   The design sheet according to any one of claims 1 to 4, wherein the uneven pattern is a mesh having an opening of 3 mm or more.   The design sheet according to any one of claims 1 to 5, wherein the fiber structure includes a non-woven fabric of ultrafine fibers.   The design sheet according to any one of claims 1 to 6, wherein the fiber structure is a leather-like sheet. Have 1mm or thicker, the main Tsu push from fabric having a surface having irregularities composed of a concave portion is a portion where the yarn the projections are not present is a portion which the yarn is present, a thickness of less than 1mm forming a fibrous structure comprising a superfine fiber nonwoven fabric, a stack of superposed and heat-adhesive resin sheet interposed, the between the Messi Interview fabric and said fibrous structure having,
And heat-pressing the stack.
In the process of the heat press method of the design sheet, characterized in that to form the standing body specific rugged pattern irregularities as the type of the mesh Interview fabric to the surface of the fiber structure.

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