JP2001145981A - Molding decorative film and method of manufacturing molded article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a molding decorative film used for a molded article large in size and highly excellent in beautifulness, weatherability and deep drawing properties. SOLUTION: A molding decorative film is constituted by successively laminating (a) an uncured ultraviolet or electron beam curable hard coat layer, (b) a thermoplastic transparent resin layer and (c) a thermoplastic color layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative film for molding particularly suitable for outdoor use and a method for producing a molded product using the same.

[0002]

2. Description of the Related Art At present, products which require a high degree of outdoor durability, such as automobile bodies and exterior parts, are generally coated with a heat-curable paint. However, these paintings require a lot of man-hours, require a large space for the installation of a booth and a baking / drying furnace for painting, and require a great deal of energy to operate them. In addition, there are various problems, such as the presence of dust during the painting operation.

[0003] As an external decoration method instead of painting, a flexible decoration film is attached or a durable decoration film is inserted into a mold and molten resin is injected from the back surface of the decoration surface. Methods of manufacturing plastic parts having a cosmetic surface having outdoor durability by injection molding or the like have been proposed (for example, JP-A-63-216717, JP-A-63-123469, and Japanese Patent Application Laid-Open (JP-A) No. 63-123469). 50307
No. 7).

However, when the products obtained by these proposed methods are used outdoors because the surface is a thermoplastic resin film, they are contaminated by dust and dirt flying from the air, and are scratched by brushes of car washing machines. In addition, there is a problem that durability against chemical substances such as acid rain and gasoline is not sufficient. Although the durability against chemical substances can be considerably improved by using a fluorine-containing resin-based film or the like, the film is expensive, and has a scratch resistance and a chemical substance resistance that are inferior to those of thermosetting paint films. It is a fact. As a method of obtaining a product having improved scratch resistance, there is a method disclosed in Shokai 62
JP-A-128815, a surface of a melt-molded material capable of forming a transparent molded body containing rubber in polymethyl methacrylate is hard-coated,
A method has been proposed in which a printed surface of a polycarbonate film having a printed back surface is bonded to a molding material during injection molding. However, in this method, since the hard coat does not have sufficient flexibility and elongation, if the deformation rate at the time of molding the polycarbonate film to which the hard coat is applied is large, the hard film is broken or cracked, and the cosmetic effect is lost. for,
There is a problem that it can be applied only to the production of a molded product having a small deformation rate such as a simple curved surface or at most a quadratic curved surface.

In addition, the molded article according to the present proposal has an outdoor durability such as an acrylic resin because at least partially an actinic ray such as ultraviolet rays in sunlight reaches the surface of the molded article base material via a surface layer. If a base material with good properties is not used, the surface of the base material will be degraded by transmitted light during use, causing problems such as peeling of the film layer on the surface, so it can be used as a base material when used outdoors Is limited to substrates having good light resistance.

[0006]

The inventor of the present invention has made intensive studies to solve the above-mentioned problems, and as a result, has completed the present invention. Thus, according to the present invention, "1. (a) an uncured ultraviolet or electron beam curable hard coat layer, (b) a thermoplastic transparent resin layer and (c) a thermoplastic colored layer are sequentially laminated. Characteristic decorative film for molding 2. (d) on the side of the thermoplastic colored layer (c) opposite to the (b) layer
The decorative film according to claim 1, wherein a thermoplastic sheet layer is laminated. 3. The decorative film according to claim 1, wherein the thermoplastic colored layer (c) contains a glitter material. 4. The decorative film according to any one of claims 1 to 3, wherein the thermoplastic colored layer (c) comprises two or more layers. 5. The decorative film according to claim 4, wherein the thermoplastic colored layer (c) is composed of two or more layers and has a pattern in a layer (c) which is adhered to the layer (b). 6. 6. The decorative film according to claim 1, wherein at least one of the thermoplastic transparent resin layer (b) and the thermoplastic colored layer (c) is formed by a casting method. 7. UV or electron beam curable hard coat layer (a)
The decorative film according to any one of claims 1 to 6, further comprising a release film layer (a ') provided on the side opposite to the thermoplastic transparent resin layer (b). 8. The decorative film obtained in any one of claims 1 to 7 is applied to a female mold of an injection mold so that the thermoplastic coloring layer (c) or the thermoplastic sheet layer (d) is in contact with the injection molding resin. Or pre-molded and inserted into the female mold in advance, or molded in the female mold by vacuum and / or heating along the inner wall of the female mold, and then set the metal so that the male mold is in a predetermined position. After closing the mold and pressing the molten resin into the gap between the male mold and the decorative film, the molded product is taken out of the mold, and further from the hard coat layer (a) or the release film layer (a ') side. A method for producing a molded article having a decorative film layer formed on its surface by irradiating an ultraviolet ray or an electron beam to cure the hard coat layer and then peeling off the release film layer (a '). 9. The manufacturing method according to claim 8, wherein the release film layer (a ') of the decorative film obtained in claim 7 is peeled before being inserted into a mold, before preliminary molding, or after irradiation with ultraviolet rays after molding. Is provided. Molded products manufactured using decorative films have sufficient weather resistance, chemical resistance and scratch resistance for automobile bodies or parts thereof, and are made of inexpensive resins with low weather resistance as base materials. Since it can also be used, it is economically superior to the conventional one.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The hard coat layer (a) in the present invention uses a hard coat composition of an ultraviolet ray or an electron beam curable type. Although there is no limitation, it is preferable in the present invention to provide a cured film having a pencil hardness of 6H or more on a glass plate after ultraviolet curing.

As such a hard coat composition, for example, a tri- or higher valent (meth) acrylate oligomer such as pentaerythritol tri (meth) acrylate and dipentaerythritol tetra (meth) acrylate alone or a mixture thereof is required. A composition in which a divalent or monovalent (meth) acrylate is mixed to adjust the physical properties, etc .; a polymer having a glass transition temperature of 70 ° C. or higher, such as polymethyl methacrylate, is mixed with pentaerythritol tri (meth) acrylate. ) Trivalent or more (meth) such as acrylate and dipentaerythritol tetra (meth) acrylate
A composition in which an acrylate oligomer alone or a mixture thereof and, if necessary, a divalent to monovalent (meth) acrylate for adjusting physical properties, etc .; photopolymerization which initiates polymerization of the composition with ultraviolet rays An ultraviolet-curable composition containing an initiator; an ultraviolet-curable organic-inorganic composite composition as described in JP-A-3-237113 (Japanese Patent No. 2804582); and the like.

It is also possible to add an ultraviolet absorber, HALS, etc. to these hard coat compositions to improve the light fastness. However, taking into consideration the light emission characteristics of the source of actinic rays used for curing. It is necessary to pay close attention to the type and amount of the ultraviolet absorber used. These hard coat compositions may be diluted with a solvent or the like that can dissolve the composition, if necessary, and a flow control agent, a coloring agent, a dispersant,
An adhesion-imparting agent or the like may be added. Above all,
The inorganic-organic composite hard coat composition described in Japanese Patent No. 237113 is an object of the present invention in that it has high scratch resistance, high chemical resistance, small curing shrinkage and excellent adhesion. Particularly preferred.

[0010] The thermoplastic transparent resin layer (b) in the present invention.
Is not particularly limited as long as it has transparency, and examples thereof include acrylic resin-based polymers, polyurethane-based polymers, fluorine-containing polymers, polycarbonates, PVC-based polymers, ABS, PET, and PBT.
And the like. For use outdoors, an acrylic resin-based polymer, a polyurethane-based polymer, a fluorine-containing polymer, or a PVC-based polymer film is preferable. Further, particularly preferable for use outdoors are those obtained by blending an acrylic resin such as an acrylic resin such as polymethyl methacrylate, a monomer that forms a polymer having a high glass transition temperature such as methyl methacrylate, and methyl acrylate. A copolymer with a monomer that gives a polymer having such a low glass transition temperature, an essentially linear polyurethane resin with few branches obtained by reacting an aliphatic diisocyanate with a glycol-based polyol, (meth) acrylic Examples thereof include a copolymer of a monomer and a fluorine-containing polymerizable monomer such as vinylidene fluoride, soft PVC, and the like. These resins can be used alone or, if necessary, kneaded or alloyed with each other. These are used as films. In these films, various additives usually used for forming a resin film can be used. Further, a coloring material or the like may be blended as long as the transparency is not lost.

Among the above polymers, ABS, PET,
PBT and the like are not inherently good in light fastness, but can be used for outdoor use unless extremely high light fastness is required by appropriately blending an ultraviolet absorber or the like.

The film is formed by a calender roll method,
It is performed by a known method such as a T-die method or a casting method, or may be composited by laminating or co-extrusion of different kinds of films. Also, as described later, the layer (b) may be formed by casting a coating solution obtained by dissolving or dispersing the composition for forming the layer (b) directly on the layer (a) or the layer (c) in a solvent. Good.

The thermoplastic colored layer (c) in the present invention comprises:
(B) Pigment, metal powder, mica powder, and a thin film of metal or metal oxide formed on the surface of these powders by a method such as vapor deposition on the same transparent resin layer forming material as that used for the layer. And the like. For outdoor use, the transmittance of light having a wavelength of 190 nm to 400 nm irradiated from the surface of the layer (a) after curing the layer (a) is 10%.
It is preferable to adjust the type and amount of the coloring material of the layer (c) or the amount of the ultraviolet absorber or the like so as to be preferably 5% or less. By controlling the light transmittance, a molded article having excellent outdoor weather resistance can be obtained even when a material having low light resistance is used as the layer (d) or the molded resin substrate. Further, the layer (c) may be a multilayer, a layer obtained by laminating layers containing different coloring materials on each layer, or a non-continuous pattern in which a pattern or the like is printed on the layer adjacent to the layer (b). It may include a typical pattern.

The thermoplastic resin sheet layer (d) in the present invention is not particularly limited as long as the adhesiveness between the layer (c) and the molded resin substrate is good. Can be used. To supplement the adhesiveness
(D) If necessary, an adhesive layer or a primer layer for assisting adhesion may be provided on both surfaces or one surface of the layer. For example, when the molding resin substrate is a polyolefin, a chlorinated polyolefin layer is used as the primer layer. Provided.

In the decorative film according to the present invention having no layer (d), the above-mentioned adhesive layer or primer layer is provided on the surface of the layer (c) to supplement the adhesiveness with the molded resin substrate. You may. The release film layer (a ′) in the present invention is obtained by curing the hard coat layer after completion of molding using a decorative film or by irradiating ultraviolet rays or an electron beam through (a ′) to harden the hard coat layer. There is no particular limitation as long as it can be peeled off from the layer surface. Further, the surface may be treated with a release agent such as a silicone-based agent in order to assist the release.

FIG. 1 shows the structure of a decorative film according to the present invention. The production may be performed by a known method, and a typical method will be described below. 1. A hard coat for forming the layer (a) is applied to the surface of the release film layer (a ') or the release-treated (a'), and if necessary, heated to remove the solvent contained in the hard coat coating film. To form a layer (a) by removing the layer (a) A step of laminating the layer (b) and the colored layer (c) in the form of a transparent film on the surface of the layer (a) in the order of the layers (b) and (c) is further required (C) laminating the sheet-like layer (d) on the surface of the layer (c) according to the above.

2. A hard coat for forming the layer (a) is applied to the surface of the release film layer (a ') or the release-treated (a'), and if necessary, heated to remove the solvent contained in the hard coat coating film. A step of forming a layer by removing (a) a step of laminating a layer (b) of a transparent film on the surface of the layer (a) by dissolving or dispersing a composition for forming a layer (c) in a solvent; A step of casting the coating agent which has been made coatable on the surface of the layer (b) and removing the solvent contained in the coating by heating or the like. Further, if necessary, the sheet-like layer (d) may be replaced with the layer (c). A method comprising a step of forming on a surface.

3. A hard coat for forming the layer (a) is applied to the surface of the release film layer (a ') or the release-treated (a'), and if necessary, heated to remove the solvent contained in the hard coat coating film. Step of forming layer (a) by removing the composition A solution forming or dispersing the composition for forming layer (b) in the form of a transparent film in a solvent is cast on the surface of layer (a) so as to be coatable. A step of removing the solvent contained in the coating by heating or the like. A coating composition which can be coated by dissolving or dispersing the composition forming the colored layer (c) in a solvent in the surface of the layer (b). And a step of removing the solvent contained in the coating by heating or the like, and, if necessary, forming a sheet-like (d) layer on the (c) layer surface.

4. A hard coat for forming the layer (a) is applied to the surface of the release material (a ') or the support material made of a metal plate, and if necessary, heated to remove the solvent contained in the hard coat applied film ( After the formation of the layer a), the layers (b) and (c) and, if necessary, the layer (d) are formed in the same manner as in the above-mentioned methods 1 to 3, and then the layer (a) is supported from the layer surface. A method comprising a step of removing and removing a material.

[5] Step (c) of forming a layer (c) on the surface of a release film (a ') or a support made of a metal plate in the same manner as in the above method 1 or 2; forming a layer (b) in a manner similar to the above method 1 or 2 (C) forming a hard coat on the surface of the layer (b) applying a hard coat on the surface of the layer and, if necessary, removing the solvent contained in the hard coat coating film by heating or the like to form a hard coat layer (a) A step of laminating the release film layer (a ') on the surface of the layer (a) if necessary. A method comprising a step of peeling and removing the support material from the surface of the layer (c).

6. In the above method 3, a method of forming the layer (c) on the surface of the layer (b) in a semi-dry state without completely removing the solvent. 7. (D) On the surface of the layer, (c), (b),
(A) a method comprising, if necessary, further forming a layer (a ') by any one of the above methods 1 to 3;

In the decorative film of the present invention, when the (d) layer is not provided or the adhesive or primer layer is provided on the open surface of the (d) layer, the surface of the (c) layer or (d) layer is provided. May be laminated with a temporary protective film having releasability.
The (d) layer can be formed by laminating a film-like material on the (c) layer, or by casting on the support or the (c) layer as described above. The support is peeled and removed from the layer surface after the decorative film is formed (d).

When the decorative film of the present invention is composed of a combination of materials having insufficient adhesion between the layer (b) and the layer (c) in a dry state, the layers (b) to (c) Immediately after the application of the layer or while in a semi-dry state,
It is particularly preferable to apply the layer (c) or the layer (b) because the mutual surfaces are mixed to improve the adhesion. The layer (c) may be formed by laminating a film-like material containing a coloring material in advance to the layers (b) to (d) in addition to the casting method. In this case, the layers (b) and (c) or the layers (c) and (d) may be previously co-extruded or composited with an adhesive.

In the production of the decorative film of the present invention, when each layer is formed by a casting method, the casting is performed by a known method, for example, a spray method, a roll coating method, a curtain coater method, a fountain coater method, a gravure printing method, and screen printing. It can be performed by a method or the like.
The decorative film according to the present invention may be in the form of a sheet cut into a certain size or a continuous film.

A molded article using the decorative film of the present invention thus obtained is produced as follows. A decorative film is preformed in a female mold of an injection mold so that the thermoplastic colored layer (c) or the thermoplastic sheet layer (d) can be inserted into the female mold in advance so that the thermoplastic colored layer (c) or the thermoplastic sheet layer (d) is in contact with the injection molded resin. Or after being formed along the inner wall of the female mold by vacuum and / or heating in the female mold, the mold is closed so that the male mold is in a predetermined position, and the male mold and the decorative film are separated. After the molten resin is pressed into the gap, the molded product is taken out of the mold, and further irradiated with ultraviolet light or an electron beam from the hard coat layer (a) or the release film layer (a ') to form the hard coat layer. After curing, the release film layer (a ') is peeled off to obtain a molded article having a decorative film layer formed on the surface. Alternatively, the molded product of the present invention can be similarly obtained by peeling the (a ') layer of the decorative film before inserting it into the mold or before preliminary molding.

[0026]

The present invention will be described in more detail with reference to the following examples. In the examples, “parts” and “%” mean “parts by weight” and “% by weight”, respectively.

Production Example 1 Production of Hard Coat 1 Dipentaerythritol tetramethacrylate 100
, 10 parts of methyl methacrylate, 15 parts of an adduct of 1 mol of 1,6-hexamethylene diisocyanate, 2 parts of 2-hydroxyethyl methacrylate and 8 parts of 2-hydroxy-2-methyl-propiophenone 1 was obtained.

Production Example 2 Production of Hard Coat 2 A hard coat consisting of the composition (Note 1) described in Example 2 of JP-A-3-237113 was designated as Hard Coat 2. (Note 1) Silica sol NBA-ST (manufactured by Nissan Chemical Co., Ltd., solid content: 20%) 100 parts 3,4-epoxycyclohexylmethyl acrylate 50 parts Tetrakis (ethylacetoacetonato) zirconium 1 part Hydroquinone 0.01 parts The mixture was reacted at 90 ° C. for 8 hours with stirring to obtain a solution having a solid content of 24%. A composition comprising 1050 parts of the solution, 150 parts of trimethylolpropane triacrylate and 20 parts of benzoin ethyl ether.

Production Example 3 Production of Hard Coat 3 100 parts of paraloid A-21 (acrylic resin manufactured by Rohm and Haas), 100 parts of dipentaerythritol pentaacrylate, 40 parts of 1,4-butanediol dimethacrylate, 2-methyl} Hard coat 3 was obtained by mixing 20 parts of 4- (methylthio)} phenyl 2-morpholino-1-propanone, 300 parts of toluene and 100 parts of methyl ethyl ketone.

Example 1 PE having a thickness of 120 μm treated with a silicone release agent
The hard coat 1 of Production Example 1 was applied to a release-treated surface of the T film (a ') by a roll coater so as to have a thickness of 5 μm to form a layer (a) having a support film. (Process).
Next, an acrylic resin-based lacquer (Acrylic # 2000, manufactured by Kansai Paint) containing aluminum powder was spray-coated on one side of a 50-μm-thick acrylic resin-based transparent film (b) to a dry film thickness of 30 μm. 100 ℃
After heating for 5 minutes, a 30 μm-thick polyethylene film was pressed against the painted surface to form a layer (c) having a temporary protective film (step). The (b) layer side of the (c) layer obtained in the step was pressed against the hard coat surface of the (a) layer obtained in the step to obtain a decorative film F1 for molding.

The F1 from which the temporary protective film has been removed is placed so that the surface of the (a ') layer faces the mold wall surface of the vacuum forming machine for preform, and the F1 is preformed into a desired shape by applying vacuum and heating. . After fitting the preformed F1 into a female mold having a desired shape for injection molding, the mold is closed so that the male mold is at a predetermined position, and the molten styrene resin is press-fitted. Is opened to take out the molded product.
Irradiation at 00 J / m2 (measured at 366 nm) was performed.
Next, the layer (a ') was peeled off from the surface to obtain a molded article 1 for the purpose.

The maximum deformation rate of the molded product was about 250%. The surface of the molded product shows good gloss, appearance and 000
Even if the surface was rubbed 30 times with No. 0 steel wool, gloss was not generated, and the surface was scarcely damaged, and a good surface condition was maintained. Further, the molded article was subjected to a wear resistance test (Note 2) and a solvent resistance test (Note 3). The change in haze (ΔHaze) before and after the taper abrasion test was 53% (the lower the value, the better), and the appearance in the MEK wiping test was good. (Note 2) Test temperature: 25 ° C, wear condition: wear wheel CS-1
0 load 500g, 500 rotations. ΔHaze = [(Haze value after test) − (H value before test)
(aze value)] ÷ Haze value before test × 100 (Note 3) Methyl ethyl ketone (MEK) was attached to the gauze, and the appearance was observed after wiping with a finger 20 times.

Example 2 An ABS film (d) layer having a thickness of 200 μm was pressed in place of the temporary protective film (polyethylene film) in Example 1 to obtain a decorative film F2 for molding.
F2 was mounted in the mold for preform as it was, and was placed along the inner wall of the female mold by vacuum and heating, and the intended molded product 2 was prepared in the same manner as in Example 1 except that ABS resin was used instead of styrene resin during injection molding. I got The surface of this molded product showed good gloss and appearance, and even if it was rubbed 30 times with No. 0000 steel wool, no gloss was produced, and almost no surface was damaged, and a good surface condition was maintained. Further, the haze% of the abrasion test was 55%, and the MEK wiping test was also good.

Example 3 On one side of an ABS film (d) layer having a thickness of 200 μm, 50 parts of paraloid B-44 and 50 parts of paraloid A-21 were added.
Part (paraloid is a solution 400 obtained by dissolving a resin mixture composed of an acrylic resin manufactured by Rohm and Haas Co. in 300 parts of a mixed solvent of toluene and isopropanol (5/1 weight ratio).
Was coated with a coating obtained by dispersing 60 parts of titanium white and 1 part of carbon black so as to have a dry film thickness of 30 μm using a knife coater, and then dried Aclick # 2000 containing mica powder thereon. Spray coating was performed so that the film thickness became 10 μm, and heated at 80 ° C. for 10 minutes to form a layer (c). Then, on top of it, Paraloid A-21 100
And Tinuvin 328 (UV absorber made by Ciba Geigy)
1 part of a mixed solvent of toluene and methyl ethyl ketone (5/1
(Weight ratio) A solution dissolved in 200 parts has a dry film thickness of 50 μm.
After coating with a knife coater and heating at 80 ° C. for 15 minutes to form a layer (b), the hard coat 2 of Production Example 2 was coated with a spin coater so as to have a dry film thickness of 2 μm. For 5 minutes to form the layer (a), thereby obtaining a decorative film for molding F3.

An intended molded product was obtained in the same manner as in Example 1 except that the layer (a) was placed in place of the layer (a) in place of the layer (a) so as to face the wall surface of the mold for preform. The surface of this molded product showed good gloss and appearance, and even if it was rubbed 30 times with No. 0000 steel wool, no gloss was produced, and almost no surface was damaged, and a good surface condition was maintained. Further, the haze% of the abrasion test was 10%, and the MEK wiping test was also good.

Example 4 A decorative film for molding by pressing a treated surface of a 25 μm-thick PET film treated with a silicone-based release agent on the layer (a) of Example 3 so as to be in contact with the layer (a). F4 was obtained.
AB instead of styrene resin as resin for injection molding
Except using S resin, it carried out similarly to Example 1, and obtained the target molded object 4. The surface of this molded product showed good gloss and appearance, and even if it was rubbed 30 times with No. 0000 steel wool, no gloss was produced, and almost no surface was damaged, and a good surface condition was maintained. Further, the haze% of the wear test is 5%.
%, MEK wiping test was also good.

Example 5 On one side of an acrylic resin film (b) layer having a thickness of 125 μm, 50 parts of paraloid B-44 and 50 parts of paraloid A-2
1 and 50 parts of a resin mixture dissolved in 300 parts of a mixed solvent of toluene and n-butanol (5/1 weight ratio).
Part of the coating material obtained by dispersing the mixture was dried with a knife coater to a dry film thickness of 50.
It was coated to a thickness of μm and heated at 120 ° C. for 8 minutes. Thereafter, a solution obtained by dissolving 100 parts of chlorinated polypropylene resin in 400 parts of toluene was further applied thereon to obtain a dry film having a thickness of 5 μm.
After spray coating and heating at 100 ° C. for 2 minutes, the hard coat 3 of Production Example 3 was spray-coated on the uncoated side of the layer (b) so as to have a dry film thickness of 10 μm. After heating for a minute, a decorative film for molding F5 was obtained.

A target molded product 5 was obtained in the same manner as in Example 3 except that a polypropylene resin was used instead of the ABS resin as the resin for injection molding. The surface of this molded product showed good gloss and appearance, and even if it was rubbed 30 times with No. 0000 steel wool, no gloss was produced, and almost no surface was damaged, and a good surface condition was maintained. Further, the haze% of the abrasion test was 62%, and the MEK wiping test was also good.

Example 6 A coating material obtained by dispersing 2 parts of a cyanine blue pigment in place of mica powder in Example 3 was screen-printed to a dry film thickness of 15%.
A molded article 6 was obtained in the same manner as in Example 3 except that printing was performed in a predetermined pattern so as to have a thickness of μm. The surface of this molded product showed good gloss and appearance, and even if it was rubbed 30 times with No. 0000 steel wool, no gloss was produced, and almost no surface was damaged, and a good surface condition was maintained.

Comparative Example 1 A film was obtained in the same manner as in Example 3 except that the hard coat 2 was not applied, and a comparative molded product 1 was obtained in the same manner as in Example 3. The surface of this molded product showed good gloss and appearance, but when the surface was rubbed 30 times with No. 0000 steel wool, the surface gloss was lost and deep scratches occurred. Further, the haze% in the abrasion test was 97%, and the MEK wiping test resulted in gloss.

Comparative Example 2 After the decorative film for molding of Example 2 was obtained, the film was irradiated with 20,000 J / m ² with a high pressure mercury lamp from the layer (a) side of the film to obtain a film of Comparative Example 2. A comparative molded product 2 was obtained in the same manner as in Example 2 except that irradiation with a high-pressure mercury lamp was not performed after injection molding. In the obtained molded product, the hard coat layer on the surface was cracked and peeled off, so that a continuous hard coat film was not formed. Also, (b) the pattern of the hard coat layer having the cracked layer surface was transferred and a smooth appearance was obtained. Did not show.

[0042]

According to the present invention, it is possible to easily produce a large-sized molded article such as an automobile bumper or door panel having extremely high scratch resistance, which is required to have a high degree of aesthetics, weather resistance and deep drawability. Can be.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a decorative film of the present invention.

[Explanation of symbols]

 (A) UV or electron beam curable hard coat layer (a ') Release film layer (b) Thermoplastic transparent resin layer (c) Thermoplastic coloring layer (d) Thermoplastic sheet layer

 ──────────────────────────────────────────────────続 き Continuing on the front page F term (reference) 4F100 AA19 AK01A AK01B AK25 AK42 AK52 BA03 BA04 BA05 BA10A BA10C BA10D BA10E CB00 CC00A DE01 EH312 EH61 EJ082 JEJ242 EJ311 EJ312 EJ422 EJ532 J16BB12J16B16BJBJB12B16BJBJBJBJBJB12B JN21 JN21C 4F206 AA43 AA44 AB14 AD05 AD20 AD32 AG03 AH18 AH47 JA07 JB14 JB20 JB24 JF01 JF05 JM04 JN11 JN26 JN41 JN43 JW21 JW34

Claims (9)

[Claims] 1. A molding method comprising: (a) an uncured ultraviolet or electron beam curable hard coat layer; (b) a thermoplastic transparent resin layer; and (c) a thermoplastic colored layer. Decorative film. 2. The decorative film according to claim 1, wherein a thermoplastic sheet layer (d) is laminated on the thermoplastic colored layer (c) on the side opposite to the layer (b). 3. The decorative film according to claim 1, wherein the thermoplastic colored layer (c) contains a glitter material. 4. The decorative film according to claim 1, wherein the thermoplastic colored layer (c) comprises two or more layers. 5. The decorative film according to claim 4, wherein the thermoplastic colored layer (c) is composed of two or more layers, and has a pattern in the layer (c) which is adhered to the layer (b). 6. The decorative film according to claim 1, wherein at least one of the thermoplastic transparent resin layer (b) and the thermoplastic colored layer (c) is formed by a casting method. 7. The method according to claim 1, wherein a release film layer (a ') is provided on the opposite side of the thermoplastic transparent resin layer (b) of the ultraviolet or electron beam-curable hard coat layer (a). Decorative film. 8. The thermoplastic colored layer (c) or the thermoplastic sheet layer (d) of the decorative film obtained in any one of claims 1 to 7 is injection molded in a female mold of an injection molding die. After preforming so that it can be inserted into the female mold so as to be in contact with the resin and inserting it, or after forming it along the inner wall of the female mold by vacuum and / or heating in the female mold, the male mold is placed in a predetermined position. After closing the mold so that the molten resin is pressed into the gap between the male mold and the decorative film, the molded product is taken out from the mold,
Further, the hard coat layer is cured by irradiating ultraviolet rays or an electron beam from the side of the hard coat layer (a) or the release film layer (a '), and then the release film layer (a').
A method for producing a molded article having a decorative film layer formed on the surface by peeling off a decorative film layer. 9. The decorative film according to claim 7, wherein the release film layer (a ′) of the decorative film is peeled off before being inserted into a mold, before preliminary molding or after irradiation with ultraviolet rays. Production method.