JP2020040264A - Molded sheet, method for producing molded sheet, molding and method for producing molding - Google Patents

Abstract

To provide a molded sheet that can be produced simply at low cost and has a soft texture, a method for producing a molded sheet, a molding and a method for producing a molding.SOLUTION: A molded sheet 10 has a base material 20, a thermally expansion layer 30 that has a thermal expansion material 32 and is put on a first principal face 22 of the base material 20, and a napped layer 40 containing an adhesion layer 42 put on the thermally expansion layer 30 and a fiber 44 planted on the adhesion layer 42. The adhesion layer 42 contains a heat conversion material that converts electromagnetic waves into heat to expand the thermal expansion material 32.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a molded sheet, a method of manufacturing a molded sheet, a molded article, and a method of producing a molded article using a thermal expansion material that expands by heating.

  Shaped objects manufactured from foamable sheets are known. For example, Patent Literature 1 discloses that a foam layer is selectively foamed from a foam sheet having a base layer, a light absorption pattern printed on the base layer, and a foam layer provided on the base layer. Discloses a foamed molded article manufactured by the above method.

JP 2001-150812 A

  In the foamed molded article of Patent Literature 1, since the foamed layer is made of a thermoplastic resin, when the user touches the molded article, the user feels hard to touch. On the other hand, in order to soften the touch, for example, when a flocking process is applied to a foamed molded product, it is necessary to apply an adhesive to the foamed molded product and to implant fibers (flock) in the applied adhesive, so that manufacturing is performed. The number of processes increases, and the manufacturing cost increases.

  The present invention has been made in view of the above circumstances, and provides a molded sheet, a method of producing a molded sheet, a method of producing a molded sheet, a molded article, and a method of producing a molded article that can be produced at a low cost by a simple production method and have a soft touch. With the goal. It is another object of the present invention to provide a molded article and a method of manufacturing the molded article, which have at least one of heat insulation, sound insulation, moisture absorption, and braking.

In order to achieve the above object, the molded sheet according to the first aspect of the present invention includes:
A substrate,
A thermal expansion layer comprising a thermal expansion material, laminated on a first main surface of the base material;
An adhesive layer laminated on the thermal expansion layer, and a raised layer having fibers planted in the adhesive layer,
The adhesive layer includes a heat conversion material that converts electromagnetic waves into heat and expands the thermal expansion material.

The molded article according to the second aspect of the present invention includes:
A substrate,
A thermal expansion layer including a thermal expansion material, laminated on the first main surface of the base material, and at least partially expanded.
An adhesive layer laminated on the expanded region of the thermal expansion layer, and a raised layer having fibers planted in the adhesive layer,
The adhesive layer includes a heat conversion material that converts electromagnetic waves into heat and expands the thermal expansion material.

The method for producing a molded sheet according to the third aspect of the present invention includes:
A thermal expansion layer laminating step of laminating a thermal expansion layer containing a thermal expansion material on the first main surface of the base material;
On the thermal expansion layer, an adhesive containing a heat conversion material that expands the thermal expansion material by converting electromagnetic waves into heat is applied, and a raised layer laminating step of planting fibers in the applied adhesive. including.

The method for manufacturing a shaped article according to the fourth aspect of the present invention includes:
A substrate, a thermal expansion layer including a thermal expansion material and laminated on a first main surface of the substrate, an adhesive layer laminated on the thermal expansion layer, and fibers planted in the adhesive layer; And a raised layer having: a bonding step, wherein the adhesive layer includes a heat conversion material that expands the thermal expansion material by converting electromagnetic waves into heat, a preparation step of preparing a molded sheet,
Expanding the thermal expansion layer by irradiating the adhesive layer with the electromagnetic wave to expand the thermal expansion material.

  According to the present invention, it is possible to provide a molded sheet, a method for producing a molded sheet, a molded article, and a method for producing a molded article, which can be produced at a low cost by a simple production method and have a soft touch. Further, according to the present invention, it is possible to provide a molded article and a method of manufacturing the molded article, which have at least one of heat insulation, soundproofing, moisture absorption, and braking.

It is a schematic diagram which shows the cross section of the molded sheet which concerns on embodiment of this invention. It is a flowchart which shows the manufacturing method of the molded sheet which concerns on embodiment of this invention. It is a mimetic diagram showing the thermal expansion layer laminated on the substrate concerning the embodiment of the present invention. It is a mimetic diagram showing an adhesive containing a heat conversion material applied to a thermal expansion layer concerning an embodiment of the present invention. It is a mimetic diagram showing fibers implanted in an adhesive containing a heat conversion material according to an embodiment of the present invention. It is a perspective view showing a modeled thing concerning an embodiment of the present invention. FIG. 7 is a cross-sectional view of the molded article shown in FIG. 6 taken along line AA. It is a flowchart which shows the manufacturing method of the molded article which concerns on embodiment of this invention.

  Hereinafter, a molded article according to an embodiment of the present invention will be described with reference to the drawings.

  In the present embodiment, the molded article 100 is manufactured from the molded sheet 10. The modeled object 100 is used as a decorative sheet, wallpaper, or the like. The “molded object” in this specification is a sheet in which irregularities are formed (formed) on a predetermined surface, and the irregularities constitute a geometric shape, a character, a pattern, a decoration, and the like. Here, the “decoration” refers to recalling beauty through visual and / or tactile sensation. “Shaping (or shaping)” means to create something with a shape, and also includes concepts such as decoration to add decoration and decoration to form decoration. In addition, the “modeled object” in this specification is a three-dimensional object having irregularities on a predetermined surface. Also referred to as (2.5D) objects or pseudo three-dimensional (Pseudo-3D) objects. The technology for manufacturing the modeled object according to the present embodiment can also be referred to as a 2.5D printing technology or a Pseudo-3D printing technology.

(Molded sheet)
The molded sheet 10 will be described with reference to FIG. As shown in FIG. 1, the molded sheet 10 includes a substrate 20, a thermal expansion layer 30 laminated on the first main surface 22 of the substrate 20, and an adhesive layer laminated on the thermal expansion layer 30. And a raised layer 40 having fibers 44 implanted in the adhesive layer 42.

  The base material 20 of the molded sheet 10 has the first main surface 22 on which the thermal expansion layer 30 is formed, and supports the thermal expansion layer 30. The base material 20 is formed in a sheet shape, for example. The material forming the substrate 20 is, for example, a thermoplastic resin such as a polyolefin resin (polyethylene (PE), polypropylene (PP), etc.), a polyester resin (polyethylene terephthalate (PET), polybutylene terephthalate (PBT), etc.). It is. The type of the material constituting the base material 20 and the thickness of the base material 20 are selected according to the use of the molded article 100.

  The thermal expansion layer 30 of the molded sheet 10 is laminated on the first main surface 22 of the substrate 20. The thermal expansion layer 30 includes a binder 31 and a thermal expansion material (thermal expansion material before expansion) 32 dispersed in the binder 31. The binder 31 is an arbitrary thermoplastic resin such as a vinyl acetate polymer or an acrylic polymer. The heat-expandable material 32 is, for example, a heat-expandable microcapsule, and is heated to a predetermined temperature or more, so that the heat-expandable material 32 has a size corresponding to the amount of heat to be heated (specifically, a heating temperature, a heating time, and the like). Swell. The thermal expansion material 32 expands by being heated to, for example, 80C to 120C or more.

  The heat-expandable microcapsules are microcapsules in which a foaming agent composed of propane, butane, and other low-boiling substances is wrapped in a shell made of a thermoplastic resin. The shell of the heat-expandable microcapsule is formed from a thermoplastic resin such as polystyrene, polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, polyacrylate, polyacrylonitrile, polybutadiene, and a copolymer thereof. When the heat-expandable microcapsules are heated to a predetermined temperature or higher, the shell softens and the foaming agent evaporates, and the shell expands into a balloon by the pressure at which the foaming agent evaporates. The thermally expandable microcapsules expand to about five times the particle size before expansion. The average particle size of the thermally expandable microcapsules before expansion is, for example, 5 to 50 μm.

  In the manufacture of the modeled object 100, at least a part of the thermal expansion layer 30 expands due to the expansion of the thermal expansion material 32, and irregularities 39 described later are formed on the surface 34 opposite to the base material 20. The formation of the unevenness 39 of the thermal expansion layer 30 will be described later.

  The raised layer 40 of the molded sheet 10 has an adhesive layer 42 laminated on the surface 34 of the thermal expansion layer 30 opposite to the substrate 20, and fibers 44 planted in the adhesive layer 42.

  The adhesive layer 42 of the raised layer 40 is laminated on the surface 34 of the thermal expansion layer 30 on the side opposite to the substrate 20 in a predetermined pattern corresponding to the irregularities 39 of the thermal expansion layer 30 of the modeled object 100. You. The adhesive layer 42 is made of an adhesive containing a heat conversion material that converts the absorbed electromagnetic waves into heat. The ratio of the heat conversion material contained in the adhesive is, for example, 2% by weight to 10% by weight.

  The heat conversion material of the adhesive layer 42 converts the absorbed electromagnetic wave into heat and emits the converted heat, thereby heating the heat expansion material 32 of the heat expansion layer 30. The heated thermal expansion material 32 expands to a size according to the heating temperature, the heating time, and the like. Then, due to the expansion of the thermal expansion material 32, the thermal expansion layer 30 expands. Since the heat conversion material converts electromagnetic waves into heat more quickly than other portions of the molded sheet 10, the region near the adhesive layer 42, that is, the thermal expansion material 32 near the adhesive layer 42 is selectively heated. it can.

The heat conversion material is carbon black which is a carbon molecule, a metal hexaboride compound, a tungsten oxide-based compound, or the like. For example, carbon black absorbs visible light, infrared light and the like and converts it into heat. Further, the metal hexaboride compound and the tungsten oxide-based compound absorb near-infrared light and convert it to heat. Among the metal hexaboride compound and the tungsten oxide-based compound, lanthanum hexaboride (LaB ₆ ) and cesium tungsten oxide ( Cs ₂ WO ₄ ) is preferred.

  When the adhesive of the adhesive layer 42 is cured to form the adhesive layer 42, the adhesive that cures below the temperature at which the thermal expansion material 32 starts to expand so that the thermal expansion material 32 of the thermal expansion layer 30 does not expand. For example, an emulsion adhesive and a UV-curable adhesive. In addition, since the UV-curable adhesive is cured by irradiation with UV (ultraviolet) light, when cured, it suppresses the conversion of electromagnetic waves (visible light, infrared light) from heat into heat in the heat conversion material, and reduces heat. The expansion of the expansion material 32 (that is, the thermal expansion layer 30) can be suppressed.

The fibers 44 of the raised layer 40 are implanted in the adhesive layer 42. The fiber 44 is, for example, a fiber having a length of 100 μm to 5 mm, and is made of nylon 66, rayon, or the like. Fibers 44, for example, 1 m ² per 50,000 6 million units, are flocked on the adhesive layer 42.

  Next, a method for manufacturing the molded sheet 10 will be described. FIG. 2 is a flowchart illustrating a method for manufacturing the molded sheet 10. The method for manufacturing the molded sheet 10 includes a thermal expansion layer laminating step of laminating the thermal expansion layer 30 on the first main surface 22 of the base material 20 (step S10), and a thermal conversion material on the thermal expansion layer 30. A brushed layer laminating step (step S <b> 20) of applying the adhesive 41 including the heat conversion material and implanting the fibers 44 into the adhesive 41 including the applied heat conversion material.

In the thermal expansion layer laminating step (step S10), first, the base material 20, a coating liquid for forming the thermal expansion layer 30, and the adhesive 41 containing a heat conversion material are prepared. The substrate 20 may be in a roll shape or may be cut into a sheet shape in advance. The coating liquid for forming the thermal expansion layer 30 is prepared by mixing the binder 31 and the thermal expansion material 32 (for example, thermal expansion microcapsules). The adhesive 41 containing the heat conversion material is prepared by, for example, mixing LaB ₆ and a UV-curable adhesive.

  Next, a coating liquid is applied to the first main surface 22 of the base material 20 using a coating device, and the coating liquid applied to the first main surface 22 of the base material 20 is dried. Thereby, as shown in FIG. 3, the thermal expansion layer 30 is laminated on the first main surface 22 of the base material 20. The coating device is a bar coater, a roller coater, a spray coater, or the like. In order to obtain a predetermined thickness of the thermal expansion layer 30, the application of the coating liquid and the drying of the coating liquid may be repeated.

  In the brushed layer laminating step (step S20), as shown in FIG. 4, an adhesive 41 containing a heat conversion material is applied onto the surface 34 of the thermal expansion layer 30 opposite to the base material 20 by using a coating device. A predetermined pattern is applied corresponding to the irregularities 39 of the thermal expansion layer 30 of the modeled object 100. Next, the fibers 44 are implanted in the adhesive 41 containing the heat conversion material. The fibers 44 are implanted by, for example, electrostatic flocking. Specifically, the base material 20 to which the adhesive 41 containing the heat conversion material has been applied is inserted on the surface 34 of the thermal expansion layer 30 between the electrodes to which a high voltage is applied and the fibers 44 fly. Thereby, as shown in FIG. 5, the fibers 44 are stabbed into the adhesive 41 containing the heat conversion material, and the fibers are implanted. Finally, the adhesive 41 containing the heat conversion material on which the fibers 44 are planted is irradiated with UV light to cure the adhesive 41 containing the heat conversion material, thereby forming the adhesive layer 42 containing the heat conversion material. . In the present embodiment, since the adhesive layer 42 is formed by irradiating UV light, conversion of the heat conversion material from electromagnetic waves to heat can be suppressed, and expansion of the thermal expansion material 32 can be suppressed.

  As described above, the molded sheet 10 is manufactured. When the thermal expansion layer 30 and the raised layer 40 are laminated on the roll-shaped substrate 20, the substrate 20 on which the thermal expansion layer 30 and the raised layer 40 are laminated may be cut into a desired size.

(Molded object)
Next, the molded article 100 will be described with reference to FIGS. As shown in FIG. 6 and FIG. 7, the modeled object 100 has a base material 20, a thermal expansion layer 30 partially laminated on the first main surface 22 of the base material 20, and a thermal expansion layer 30 partially expanded. And a raised layer 40 having an adhesive layer 42 laminated on the expanded region 36 of FIG. In the molded article 100, irregularities 39 due to the expanded region 36 of the thermal expansion layer 30 are formed on the surface 34 of the thermal expansion layer 30 opposite to the base material 20. Since the configuration of the substrate 20 of the molded article 100 is the same as that of the substrate 20 of the molded sheet 10, the thermal expansion layer 30 and the raised layer 40 of the molded article 100 will be described.

  The thermal expansion layer 30 of the modeled object 100 is laminated on the first main surface 22 of the base material 20, similarly to the thermal expansion layer 30 of the molded sheet 10. The thermal expansion layer 30 of the modeled object 100 has an expanded area 36, and the expanded area 36 forms unevenness 39 on a surface 34 opposite to the base material 20. The expanded region 36 of the thermal expansion layer 30 includes the binder 31 and the expanded thermal expansion material 32a, and the region other than the expanded region 36 of the thermal expansion layer 30 includes the binder 31 and the unexpanded thermal expansion material 32b (that is, the molding). Thermal expansion material 32) of the sheet 10.

  The raised layer 40 of the modeled object 100 has an adhesive layer 42 laminated on the expanded region 36 of the thermal expansion layer 30, and fibers 44 implanted in the adhesive layer 42. The configuration of the adhesive layer 42 and the fibers 44 of the modeled object 100 is the same as the configuration of the adhesive layer 42 and the fibers 44 of the molded sheet 10.

  Next, a method for manufacturing the modeled object 100 will be described with reference to FIG. In the present embodiment, the molded article 100 is manufactured from the sheet-shaped (for example, A4 paper size) molded sheet 10.

  FIG. 8 is a flowchart illustrating a method for manufacturing the modeled object 100. In the method of manufacturing the modeled object 100, the base material 20, the thermal expansion layer 30 including the thermal expansion material 32, stacked on the first main surface 22 of the base material 20, and stacked on the thermal expansion layer 30 A raised layer 40 having an adhesive layer 42 and fibers 44 implanted in the adhesive layer 42, wherein the adhesive layer 42 includes a heat conversion material that converts electromagnetic waves into heat to expand the thermal expansion material 32. A preparation step (step S30) of preparing the sheet 10 and an expansion step (step S40) of expanding the thermal expansion layer 30 by irradiating the adhesive layer 42 with electromagnetic waves to expand the thermal expansion material 32 are included.

  In the preparation step (Step S30), the molded sheet 10 is prepared. The molded sheet 10 is manufactured by, for example, the above-described method of manufacturing the molded sheet 10 (Step S10, Step S20).

In the expansion step (Step S40), the heat expansion layer 30 is expanded by irradiating the adhesive layer 42 of the molded sheet 10 with electromagnetic waves to expand the heat expansion material 32. Specifically, when LaB ₆ is included in the bonding layer 42 as a heat conversion material, the bonding layer 42 is irradiated with infrared light that the LaB ₆ absorbs and converts into heat from an irradiation device (not shown). LaB ₆ emits the converted heat. Then, the thermal expansion material 32 near the adhesive layer 42 is heated by the heat released from the LaB ₆ and expands. As a result, the expanded thermal expansion material 32a is formed in the region of the thermal expansion layer 30 below the adhesive layer 42, and the region of the thermal expansion layer 30 below the adhesive layer 42 expands. Since the adhesive layer 42 of the molded sheet 10 is laminated on the surface 34 of the thermal expansion layer 30 in a predetermined pattern corresponding to the unevenness 39 of the thermal expansion layer 30, the region 36 expanded on the thermal expansion layer 30. Is formed, and irregularities 39 due to the expanded region 36 are formed. As described above, the modeled object 100 can be manufactured. Since the region of the molded sheet 10 below the adhesive layer 42 of the thermal expansion layer 30 expands, the adhesive layer 42 of the modeled object 100 is laminated on the expanded region 36 of the thermal expansion layer 30. It will be.

Here, the amount of heat released from the heat conversion material of the adhesive layer 42 is determined by the ratio of LaB ₆ contained in the adhesive layer 42, the unit area of the electromagnetic wave applied to the adhesive layer 42, and the amount of energy per unit time. Depends on. Therefore, by controlling the ratio of LaB ₆ contained in the adhesive layer 42 and the unit area and the amount of energy per unit time of the irradiated electromagnetic wave (infrared light), the thermal expansion material 32 (that is, the thermal expansion layer 30) is controlled. It is possible to control the thickness of the expanded region 36 of the thermal expansion layer 30 in the expanded and shaped object 100, the uneven shape of the unevenness 39 and the like.

  The modeled object 100 of the present embodiment includes a raised layer 40 on the expanded region 36 of the thermal expansion layer 30. Therefore, when the user touches the modeled object 100, the user can touch the fibers 44 of the brushed layer 40 and feel a soft touch. Furthermore, in this embodiment, since the adhesive layer 42 of the raised layer 40 in the molded sheet 10 contains a heat conversion material, a pattern corresponding to the irregularities 39 made of the heat conversion material is formed separately from the adhesive layer 42. The molded article 100 can be manufactured without being provided at the same time. Therefore, the molded article 100 can be manufactured at low cost by a simple manufacturing method, and the molded sheet 10 can be provided at low cost by a simple manufacturing method. Further, the manufacturing method according to the present embodiment can manufacture the molded article 100 simply and inexpensively. Further, the raised layer 40 can be easily provided only in the expanded region 36 of the thermal expansion layer 30, and the shaped article 100 in which only the expanded region 36 of the thermal expansion layer 30 is planted can be easily manufactured.

  Although the embodiments of the present invention have been described above, the present invention can be variously modified without departing from the gist of the present invention.

  For example, the molded sheet 10 may be manufactured in a roll shape, and the molded article 100 may be manufactured in a roll shape from the roll-shaped molded sheet 10.

  The material forming the base material 20 is not limited to a thermoplastic resin, but may be paper, cloth, or the like. The thermoplastic resin forming the base material 20 is not limited to a polyolefin resin and a polyester resin, but may be a polyamide resin, a polyvinyl chloride (PVC) resin, a polyimide resin, or the like.

  The adhesive layer 42 of the raised layer 40 is not limited to a UV-curable adhesive containing a heat conversion material, but may be made of an acrylic emulsion adhesive containing a heat conversion material, a urethane adhesive containing a heat conversion material, or the like. .

The fibers 44 of the raised layer 40 are not limited to nylon 66 and rayon, but may be cotton, acrylic fiber, fibrous leather, or the like. By changing the material, length, flocking conditions, and the like of the fibers 44, the feel of the raised layer 40 can be changed, and various effects of the raised layer 40 can be provided. For example, when a long fiber 44 (for example, nylon 66 having a length of 0.8 mm) that is difficult to bend is planted at a high density of 10 million fibers per 1 m ² , the raised layer 40 (a portion exposed on the surface of the fiber 44) Can hold a lot of air, so that the raised layer 40 can provide a heat insulating effect, and the modeled object 100 has heat insulating properties. Further, since the fibers 44 vibrate by sound and convert the sound into heat, the raised layer 40 can provide a soundproofing effect, and the molded article 100 has soundproofing properties. Therefore, the raised layer 40 can be represented as a heat insulating layer or a soundproofing layer.

  Further, for example, when the fibers 44 are made of rayon, the raised layer 40 provides a moisture absorbing effect, a dew condensation preventing effect, and the like due to the high moisture absorbing property of the rayon, and the molded article 100 has a moisture absorbing property. Further, the raised layer 40 provides a braking effect (anti-slip effect) by the fibers 44, and the modeled object 100 has a braking property. The raised layer 40 is also referred to as a moisture absorbing layer or a damping layer.

  The molded sheet 10 and the modeled object 100 may have a layer formed of any other material between the layers. For example, between the base material 20 and the thermal expansion layer 30, an adhesion layer that makes the base material 20 and the thermal expansion layer 30 more adhere may be formed. The adhesion layer is made of, for example, a surface modifier.

  Further, the molded sheet 10 and the modeled object 100 may be printed with a color image. For example, the molded sheet 10 and the modeled object 100 are formed by laminating a color ink layer composed of four color inks of cyan C, magenta M, yellow Y, and black K on the surface 34 of the thermal expansion layer 30 and representing a color image. You may. Further, a color image may be printed on the raised layer 40. By printing a color image on the raised layer 40, a clearer image can be formed on the modeled object 100. In addition, by coloring the raised layer 40 by dyeing, printing, or the like, it is possible to realize the molded article 100 having higher coloring properties.

  As described above, the preferred embodiments of the present invention have been described, but the present invention is not limited to the specific embodiments, and the present invention includes the inventions described in the claims and equivalents thereof. It is. Hereinafter, the invention described in the claims of the present application is additionally described.

(Appendix 1)
A substrate,
A thermal expansion layer comprising a thermal expansion material, laminated on a first main surface of the base material;
An adhesive layer laminated on the thermal expansion layer, and a raised layer having fibers planted in the adhesive layer,
The adhesive layer includes a heat conversion material that converts electromagnetic waves into heat and expands the thermal expansion material.
Molded sheet.

(Appendix 2)
The adhesive layer is laminated on the thermal expansion layer in a predetermined pattern,
The molded sheet according to supplementary note 1.

(Appendix 3)
The heat conversion material converts visible light or infrared light into heat to expand the thermal expansion material,
The adhesive layer is composed of a UV curable adhesive containing the heat conversion material.
The molded sheet according to supplementary note 1 or 2.

(Appendix 4)
A substrate,
A thermal expansion layer including a thermal expansion material, laminated on the first main surface of the base material, and at least partially expanded.
An adhesive layer laminated on the expanded region of the thermal expansion layer, and a raised layer having fibers planted in the adhesive layer,
The adhesive layer includes a heat conversion material that converts electromagnetic waves into heat and expands the thermal expansion material.
Molded object.

(Appendix 5)
A thermal expansion layer laminating step of laminating a thermal expansion layer containing a thermal expansion material on the first main surface of the base material;
On the thermal expansion layer, an adhesive containing a heat conversion material that expands the thermal expansion material by converting electromagnetic waves to heat is applied, and a raised layer laminating step of planting fibers in the applied adhesive. including,
Manufacturing method of molded sheet.

(Appendix 6)
A substrate, a thermal expansion layer including a thermal expansion material and laminated on a first main surface of the substrate, an adhesive layer laminated on the thermal expansion layer, and fibers planted in the adhesive layer; And a raised layer having: a bonding step, wherein the adhesive layer includes a heat conversion material that expands the thermal expansion material by converting electromagnetic waves into heat, a preparation step of preparing a molded sheet,
An expansion step of expanding the thermal expansion layer by irradiating the electromagnetic wave to the adhesive layer to expand the thermal expansion material.
A method for manufacturing a molded article.

DESCRIPTION OF SYMBOLS 10 ... Molded sheet, 20 ... Base material, 22 ... 1st main surface of base material, 30 ... Thermal expansion layer, 31 ... Binder, 32 ... Thermal expansion material, 32a. ..Expanded thermal expansion material, 32b: thermal expansion material before expansion, 34: surface of thermal expansion layer opposite to base material, 36: expanded region, 39 ... unevenness, 40 ... brushed layer, 41 ... adhesive containing heat conversion material, 42 ... adhesive layer, 44 ... fiber, 100 ... molded article

Claims (6)

A substrate,
A thermal expansion layer comprising a thermal expansion material, laminated on a first main surface of the base material;
An adhesive layer laminated on the thermal expansion layer, and a raised layer having fibers planted in the adhesive layer,
The adhesive layer includes a heat conversion material that converts electromagnetic waves into heat and expands the thermal expansion material.
Molded sheet. The adhesive layer is laminated on the thermal expansion layer in a predetermined pattern,
The molded sheet according to claim 1. The heat conversion material converts visible light or infrared light into heat to expand the thermal expansion material,
The adhesive layer is composed of a UV curable adhesive containing the heat conversion material.
The molded sheet according to claim 1. A substrate,
A thermal expansion layer including a thermal expansion material, laminated on the first main surface of the base material, and at least partially expanded.
An adhesive layer laminated on the expanded region of the thermal expansion layer, and a raised layer having fibers planted in the adhesive layer,
The adhesive layer includes a heat conversion material that converts electromagnetic waves into heat and expands the thermal expansion material.
Molded object. A thermal expansion layer laminating step of laminating a thermal expansion layer containing a thermal expansion material on the first main surface of the base material;
On the thermal expansion layer, an adhesive containing a heat conversion material that expands the thermal expansion material by converting electromagnetic waves into heat is applied, and a raised layer laminating step of planting fibers in the applied adhesive. including,
Manufacturing method of molded sheet. A substrate, a thermal expansion layer including a thermal expansion material and laminated on a first main surface of the substrate, an adhesive layer laminated on the thermal expansion layer, and fibers planted in the adhesive layer; And a raised layer having: a bonding step, wherein the adhesive layer includes a heat conversion material that expands the thermal expansion material by converting electromagnetic waves into heat, a preparation step of preparing a molded sheet,
An expansion step of expanding the thermal expansion layer by irradiating the electromagnetic wave to the adhesive layer to expand the thermal expansion material.
A method for manufacturing a molded article.

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