JP2012051247A - Decorative hard coat film, decorative film and decorative molded product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decorative hard coat film capable of suppressing tackiness of a hard coat layer in a state before ultraviolet curing, reducing a possibility that cracks may occur in the hard coat layer during molding and applying wear resistance to the hard coat layer after molding.SOLUTION: In the decorative hard coat film A, the hard coat layer 13 is laminated on one face 10 of a base material film via a mold release layer 12, and a forming material of the hard coat layer 13 includes ultraviolet curing acrylate-based resin. An elongation percentage of the hard coat layer 13 after drying and before ultraviolet light irradiation is set to be 200% or more, and pencil hardness (JIS K5600-5-4:1999) of the hard coat layer 13 after ultraviolet light irradiation is set to be H or harder. Further, there are provided a decorative film 1 using the decorative hard coat film A and a decorative molded product using the decorative film 1.

Description

  The present invention relates to a decorative hard coat film, a decorative film using the decorative hard coat film, and a decorative molded product using the decorative film.

  Conventionally, as a method of obtaining a decorative molded product, a base film is sandwiched between molds to have a predetermined shape, and a resin such as a thermoplastic resin is injected and solidified on the base film, followed by painting or printing. It was. However, when the shape of the base film is a curved surface, it is difficult to perform coating or printing.

  Therefore, in-mold molding and insert mold molding (hereinafter referred to as in-mold molding or the like) have attracted attention as methods for obtaining a decorative molded product. When performing these shaping | molding, the film for decorating by which the printing layer which has a predetermined pattern and a character was laminated | stacked on the base film is used. A decorative molded product is obtained by sandwiching the decorative film between molds and pouring and solidifying a resin on the decorative film having a predetermined shape. Since the decorative molded product obtained by this method forms a printed layer before injecting and solidifying the resin, it becomes possible to give fine and vivid patterns and characters.

  Examples of objects for which in-mold molding is used include mobile phone exterior parts, automobile-related parts, medical equipment, electronics products, home appliances, building materials, containers for detergents and cosmetics, and toys.

  A decorative hard coat film in which a hard coat layer is laminated on the above base film is disclosed (for example, see Patent Document 1). It is described that the hard coat layer described in Patent Document 1 has wear resistance and chemical resistance. By providing this hard coat layer on the decorative film, it is possible to impart wear resistance and chemical resistance to the decorative molded product.

JP 2005-292198 A

  The hard coat layer described in Patent Document 1 is made of an ultraviolet curable resin, and the main structure is a polyfunctional acrylic or acrylic functional polymer. However, although the hard coat layer made of the material has wear resistance, it has a problem of low flexibility. In in-mold molding and the like, when the decorative film comprising the hard coat layer is sandwiched between molds to have a predetermined shape, the elongation of the hard coat layer cannot follow the molding, There was a problem that the hard coat layer was cracked. This problem of cracking is more likely to occur as the molding drawing becomes deeper, and more likely to occur as the hard coat layer is hardened to improve the wear resistance.

  In addition, after laminating the hard coat layer on the base film, the substrate is transferred to the next step, which is a printing step for painting or laminating a print layer having a pattern or characters on the hard coat layer. A laminated film obtained by laminating a film and a hard coat layer is wound into a roll. At this time, in the conventional hard coat layer, it is not irradiated with ultraviolet rays because it is before decorative molding, has tackiness, and the hard coat layer comes into contact with the back surface when wound in a roll shape. There was a problem that stickiness would occur.

  The present invention has been made to solve the above-described problem, and the tackiness of the hard coat layer in a state before being cured by ultraviolet rays is suppressed, and there is little risk of causing cracks in the hard coat layer during molding. An object of the present invention is to provide a decorative hard coat film, a decorative film and a decorative molded product that can impart wear resistance to the hard coat layer after molding.

  The hard coat film for decoration of the present invention is formed by laminating a hard coat layer on one side of a base film via a release layer, and the material for forming the hard coat layer contains an ultraviolet curable acrylate resin. The elongation after drying of the hard coat layer and before UV irradiation is 200% or more, and the pencil hardness (JIS standard K5600-5-4: 1999) after UV irradiation of the hard coat layer is H or more. It is characterized by being.

  In this invention, it is set as the preferable aspect that the said hard-coat layer contains a photoinitiator.

  In this invention, it is set as the preferable aspect that an antistatic layer is laminated | stacked on the surface on the opposite side to the base film of the said hard-coat layer.

  The decorative film of the present invention is characterized in that an anchor layer and a printed layer are laminated in this order on the hard coat layer constituting the decorative hard coat film described above.

  In this invention, it is set as the preferable aspect that a protective layer is laminated | stacked on the said printing layer.

  The decorative molded product of the present invention is characterized by being molded using any of the decorative films described above.

  The hard coat film for decoration of the present invention, since the surface tack of the hard coat layer is suppressed only by heat drying without performing UV curing after the coating of the hard coat layer, no stickiness to the back surface occurs, and the roll Can be wound and printing / molding can be performed in the next process. In addition, since molding can be performed before UV curing, the elongation property is excellent, and there is little risk of cracking during molding. Furthermore, high hardness and wear resistance are obtained after UV curing. The decorative hard coat film of the present invention can provide a decorative film and a decorative molded product having such good characteristics.

It is sectional drawing of the film for decorating of this invention. It is sectional drawing for demonstrating the manufacturing method of the decorative molded product of this invention, Comprising: (a) Cross-sectional view before decorative molding, (b) Cross-sectional view during decorative molding, (c) After decorative molding It is sectional drawing of (d), It is sectional drawing of the completed decorative molded product.

Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional view showing a decorative hard coat film A and a decorative film 1 of the present invention. As shown in FIG. 1A, the decorative hard coat film A has a basic configuration in which a hard coat layer 13 is laminated on a base film 10 via a release layer 12. The release layer 12 is a layer for peeling the base film 10 and the hard coat layer 13 in a later step. If necessary, an antistatic layer 11 can be provided on the side of the base film 10 opposite to the hard coat layer 13, and a protective layer 14 can be provided on the side of the hard coat layer 13 opposite to the base film 10. By laminating the protective layer 14, the hard coat layer 13 is less likely to be scratched or soiled. As the antistatic layer 11, a method of providing a metal such as aluminum or tin, a metal oxide film such as ITO by vapor deposition or sputtering, metal fine particles such as aluminum or tin, whisker, metal oxide such as tin oxide, antimony or the like. Polyesters such as fillers made from doped fine particles, whiskers, 7,7,8,8-tetracyanoquinodimethane and electron donors (donors) such as metal ions and organic cations It can be provided by a method in which it is dispersed in a resin, an acrylic resin, an epoxy resin or the like and provided by solvent coating, or a method in which polypyrrole, polyaniline or the like is doped with camphorsulfonic acid or the like is provided by solvent coating or the like.

  The decorative film 1 includes a decorative hard coat film A excluding the protective layer 14 and a printed portion B, as shown in FIG. On the decorative hard coat film A, a print layer 15 having a predetermined pattern or character is applied or laminated as a print portion B. A primer layer 16 and a protective layer 17 may be laminated on the printing layer 15 as necessary. Examples of the primer layer 16 include urethane resins, acrylic resins, polyester resins, and vinyl ester resins. In addition, an anchor layer may be provided under the printing layer 15 in order to improve the adhesion between the hard coat layer 13 and the printing layer 15.

  The hard coat layer 13 constituting the present invention is preferable as the light transmittance is higher. The light transmittance in this invention can be represented by a total light transmittance (JISK7361-1: 1997). The light transmittance of the hard coat layer 13 is preferably 80% or more, and more preferably 90% or more. As a result, the print portion of the print layer 15 provided on the hard coat layer 13 can be clearly identified.

  Hereinafter, each layer constituting the present invention will be described focusing on materials.

<Hard coat layer>
The hard coat layer constituting the present invention needs to contain an acrylate resin such as acrylate or urethane acrylate. The content thereof is preferably in the range of 10 to 70% by mass, more preferably 15 to 60% by mass, and particularly preferably 20 to 50% by mass in the total solid content of the hard coat layer. . If it is less than 10% by mass, there is a problem in that the flexibility, abrasion resistance, scratch resistance, optical properties and the like of the coating film deteriorate. If it exceeds 70% by mass, the initiation of photopolymerization is delayed, which is not preferable for production.

  The acrylate resin contained in the hard coat layer in the present invention may be either an oligomer or a prepolymer, and is not particularly limited. The acrylate-based resin constituting the present invention is required to form a hard coat layer and have an elongation percentage of 200% or more after heat drying and before ultraviolet curing. By setting the range of the elongation rate within the range, it is possible to provide a hard coat film with less occurrence of cracks during molding. There exists a problem which a crack generate | occur | produces at the time of shaping | molding that the elongation rate of acrylate-type resin is less than 200%.

  Here, as will be described later in the examples, the elongation rate is obtained by coating and thermally drying a hard coat layer on a base film and cutting it to a width of 15 mm and a length of 150 mm, a distance between chucks of 100 m, and a pulling speed. The test piece was pulled at 50 mm / min, and the length of the test piece when a crack occurred in the coating film was measured.

  The glass transition point of the acrylate resin is preferably 30 to 150 ° C, more preferably 35 to 140 ° C, and particularly preferably 40 to 130 ° C. By setting the glass transition point of the acrylate resin within the range, the coating film hardness and wear resistance at room temperature are improved. A hard coat layer using an acrylate resin having a glass transition point of less than 30 ° C. tends to have insufficient wear resistance and coating film hardness, and the coating film after heat drying has tackiness, and roll winding. Sometimes blocking tends to occur. When the glass transition point is higher than 150 ° C., the coating film hardness increases, and there is a problem that cracking occurs during molding. Here, the glass transition point refers to a value measured by a differential scanning calorimetry (DSC) method.

  The pencil hardness of the hard coat layer after decoration molding (after UV curing) is H or higher. By setting the pencil hardness within the range, there is an advantage that the wear resistance of the hard coat layer is improved. When the pencil hardness is less than H, the wear resistance of the hard coat layer constituting the present invention is insufficient.

Here, as will be described later in the examples, the pencil hardness means that the coated and dried film is irradiated with ultraviolet rays at an integrated light quantity of 300 mJ / cm ² to cure the coating film to obtain a test piece. The value measured according to JIS K5600-5-4-1999.

  The hard coat layer of the present invention can contain a photopolymerization initiator. By containing a photopolymerization initiator, the polymerization and curing reaction of the hard coat layer by irradiation with light (ultraviolet rays) can be performed in a short time.

  As photopolymerization initiators, benzophenone, benzyl, Michler's ketone, 2-chlorothioxanthone, 2,4-diethylthioxanthone, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, 2,2-diethoxyacetophenone, benzyldimethyl ketal, 2 , 2-Dimethoxy-1,2-diphenylethane-1-one, 2-hydroxy-2-methyl-1-phenylpropan-1-one, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1- [4- ( Methylthio) phenyl] -2-morpholinopropanone-1, 1- [4- (2-hydroxyethoxy) -phenyl] -2-hydroxy-2-methyl-1-propan-1-one, bis (cyclopentadienyl) ) -Bis (2,6-difluo) -3- (Pyr-1-yl) titanium, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone-1,2,4,6-trimethylbenzoyldiphenylphosphine oxide, etc. These compounds may be used alone or in combination.

  The photopolymerization initiator contained in the solid content of the hard coat layer is preferably 0.01 to 10% by mass and more preferably 0.1 to 7% by mass in the total solid content of the hard coat layer. It is particularly preferable that 0.1 to 5% by mass is blended. When the content of the photopolymerization initiator is less than 0.01% by mass, the photocurability is lowered. When the content exceeds 10% by mass, the hard coat layer is colored and the photocuring reaction proceeds. Is not economically preferable because of no change. It is also possible to add various known dyes and sensitizers to improve photocurability.

  Depending on the situation, surfactants such as leveling agents, antifoaming agents, and antifouling agents, additives such as surface modifiers, and fillers such as organic fillers and inorganic fillers can be added to the hard coat layer. .

<Base film>
Examples of the base film include polyethylene film, polypropylene film, polybutene film, polybutadiene film, polymethylpentene film, polyvinyl chloride film, vinyl chloride copolymer film, polyethylene terephthalate film, polybutylene terephthalate film, polyurethane film, and ethylene vinegar. Bi-films, ionomer base films, ethylene / (meth) acrylic acid copolymer films, ethylene / (meth) acrylic acid ester copolymer films, polystyrene films, polycarbonate films, and the like, and cross-linked films thereof are used. Furthermore, these laminated films may be sufficient. Furthermore, if necessary, a film obtained by coloring the above film, a fluorine base film, or the like can be used.

  The thickness of the base film is usually about 25 to 500 μm, preferably about 50 to 300 μm. When the thickness of the base film becomes thin, the handling property may be lowered.

  The base film is preferably heat resistant because heat is applied during in-mold molding. As a result, deformation of the base film is reduced during in-mold molding, so that the close contact state (adhesive force) with the hard coat layer laminated adjacently on the base film can be preferably maintained before and after thermal load. Therefore, the hard coat layer is hardly cracked. The heat resistance in the present invention is not limited as long as the substrate film is placed in a 150 ° C. oven for 5 seconds and no deformation is observed or substantially no deformation is observed.

  In addition to physical treatment such as corona surface treatment, flame treatment, and plasma treatment, the surface of the base film can be subjected to an easy adhesion treatment in which an easy adhesion layer such as polyester or urethane is provided. By performing these treatments, the adhesive force between the base film and the adjacent layer is improved.

<Release layer>
The resin component used for the release layer is not particularly limited as long as it has excellent adhesion to the base film and molding processability and has releasability from the hard coat layer after ultraviolet irradiation. , Melamine resin release agents, silicone resin release agents, fluororesin release agents, cellulose derivative release agents, urea resin release agents, polyolefin resin release agents, paraffin release agents, and these A composite mold release agent or the like can be used. These resin components may be used alone or in combination. In the present invention, it is preferable from the viewpoint of molding processability to use a release agent mainly composed of a melamine resin-based resin.

  As a method for forming the release layer, a bar coating method, a knife coating method, a roll coating method, a blade coating method, a die coating method, a gravure coating method, a curtain coating method, and the like are applied and dried by heating. The

<Protective layer>
The protective layer can be provided on the hard coat layer 13 and the print layer 15. As the protective layer, a resin film provided with an adhesive layer is preferably used. As a resin film which comprises a protective layer, the same thing as said base film can be used. In addition to the above, a self-adhesive polyethylene film can also be used.

  The resin component used in the adhesive layer is not particularly limited as long as it can adhere a hard coat layer and a resin film, and a printing layer and a resin film, but an acrylic resin and a polyurethane resin. Polyester resin, polyvinyl acetate resin, epoxy resin and the like can be used. These resin components may be used alone or in combination. In the present invention, it is preferable from the viewpoint of transparency to use an adhesive layer mainly composed of an acrylic resin.

<Print layer>
The printing layer can be formed by using metal or ink. When using a metal, it can be formed by vapor deposition or sputtering, and a predetermined pattern can be formed by a method such as a patterning process. When ink is used, it can be formed on a substrate film by a printing method such as gravure printing, flexographic printing, screen printing, or sublimation thermal transfer.

  Hereinafter, the production method of the present invention will be described in detail.

<Method for producing hard coat film for decoration>
When the hard coat layer 13 constituting the present invention is applied to the base film 10, a solvent can be added. Examples of the solvent include aromatic hydrocarbons such as benzene, toluene, and xylene, aliphatic hydrocarbons such as hexane, heptane, octane, nonane, and decane, and ketones such as methyl ethyl ketone, diethyl ketone, and diisopropyl ketone. What is necessary is just to select the compounding quantity of a diluent suitably.

  The decorative hard coat film A of the present invention is applied to the surface of the base film 10 via the release layer 12 after mixing the materials constituting the hard coat layer 13 and adding a solvent. Examples of the method for applying each material constituting the hard coat layer 13 on the release layer 12 include a bar coating method, a knife coating method, a roll coating method, a blade coating method, a die coating method, a gravure coating method, and a curtain coating method. A conventionally well-known method is mentioned.

  Next, the solvent is evaporated by heating to 40 to 160 ° C. to dry the hard coat layer 13. The hard coat film A for decoration of the present invention thus obtained has suppressed tackiness even though the hard coat layer 13 has not been irradiated with ultraviolet rays and has not been cured. There is no stickiness, and even if it is wound up in a roll shape, it can be sent to the next printing step without sticking to the back surface, but a protective layer 14 may be provided on the hard coat layer 13.

<Method for producing decorative film>
A printing layer 15 is provided on the hard coat layer 13 constituting the decorative hard coat film A obtained above. In addition, when the protective layer 14 is laminated | stacked on the hard-coat film, after peeling this protective layer 14 and exposing the hard-coat layer 13, the printing layer 15 is formed. As a method for forming the printing layer 15, in the case of metal, vapor deposition or sputtering may be used. When ink is used, screen printing or the like may be used. In this way, the decorative film 1 of the present invention is obtained. An anchor layer may be provided to improve the adhesion between the hard coat layer 13 and the print layer 15. Examples of the anchor layer include resins such as urethane resins and epoxy resins. Moreover, these mixtures may be sufficient and what modified | denatured these polymers may be sufficient. Examples of the method for forming the anchor layer include a coating method such as a bar coating method, a knife coating method, a roll coating method, a blade coating method, a die coating method, a gravure coating method, and a curtain coating method, and a printing method such as silk printing and screen printing. Is mentioned.

<Manufacturing method of decorative molded product>
The manufacturing method of the decorative molded product of this invention is demonstrated using FIG.
FIG. 2A is a cross-sectional view before decorative molding, and the protective layer 17 is wound around the roll 40 between the first molding die 20 and the second molding die 21. The decorative film 1 which is peeled and developed is arranged. The second molding die 21 is formed with a resin injection port 22 for covering the decorative film 1 with the resin material 31.

  FIG. 2B is a cross-sectional view during the decorative molding, and the decorative film is interposed between the first molding die 20 and the second molding die 21 shown in FIG. 1 is sandwiched and a gap is formed between the second molding die 21 and the molded decorative film 1, and then a molding resin 31 is inserted into the gap from the resin injection port 22. Injected to coat. As the molding resin 31, it is preferable to use a thermoplastic resin such as ABS or PS.

  FIG. 2C is a cross-sectional view after decorative molding. Here, the decorative film 1 has a 1a portion (a portion comprising an antistatic layer 11, a base film 10, and a release layer 12 as shown in FIG. 1B) with the release layer 12 as a boundary, It peels to 1b part (part consisting of the hard-coat layer 13, the printing layer 15, and the primer layer 16), and only 1b part is coat | covered by the resin 31 for molding, and 1a part is removed. Thereby, the hard-coat layer 13 comes to be located in the outermost surface of a decorative molded product. The decorative molded product is cooled or allowed to cool, and then the hard coat layer 13 is cured by irradiation with radiation (ultraviolet rays, visible rays, infrared rays, or electron beams).

These radiations may be polarized or non-polarized. In particular, ultraviolet rays are suitable from the viewpoints of equipment cost, safety, running cost, and the like. When curing by ultraviolet irradiation, it is necessary to add a photopolymerization initiator. As the ultraviolet energy beam source, for example, a high-pressure mercury lamp, a halogen lamp, a xenon lamp, a metal halide lamp, a nitrogen laser, an electron beam accelerator, a radioactive element, and the like are preferable. The amount of irradiation with the energy radiation source of accumulative exposure at an ultraviolet wavelength of 365 nm, preferably in the range of ^{100~5,000mJ / cm 2, 300~3,000mJ / cm} 2 is more preferable. When the irradiation amount is less than 100 mJ / cm ² , curing is insufficient, and thus the hardness of the hard coat layer may be reduced. Moreover, when it exceeds 5,000 mJ / cm < ² >, a hard-coat layer will color and transparency will fall.

  The oxygen concentration during radiation irradiation is preferably 5% or less, more preferably 3% or less, and particularly preferably 2% or less. In an oxygen-free or low-concentration atmosphere, the gas contained in addition to oxygen is preferably an inert gas. Examples of the inert gas include nitrogen, helium, neon, and argon. The ultraviolet light may be polarized or non-polarized.

  FIG.2 (d) is sectional drawing of a decorative molded product. In FIG. 2C, the molding resin 31 is cooled and hardened, and the hard coat layer 13 is UV-cured, and then separated from the first molding die 20 and the second molding die 21. The decorative molded product of the present invention can be obtained.

  EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention in detail, this invention is not limited to these Examples at all.

[Example 1]
To the release surface of the base film (non-silicone release film, thickness 50 μm, trade name: TF535, manufactured by Nipper), paint 1 (acrylate resin 30% by mass, silicon dioxide 10% by mass, photopolymerization initiator 3% by mass) And 50% by weight of methyl ethyl ketone, 2% by weight of propylene glycol monomethyl ether, 5% by weight of propylene glycol monomethyl ether acetate) were applied so as to have a dry film thickness of 7 μm, and dried at 100 ° C. for 2 minutes to obtain a sample sheet . Various characteristics before curing were measured as shown in the following measurement conditions. Ultraviolet irradiation was performed to complete the curing, and various properties after curing were measured.

[Example 2]
Paint 1 in Example 1 is paint 2 (resin mixture (containing 50% by weight of urethane acrylate, 10% by weight of acrylic ester, 40% by weight of methyl ethyl ketone)) and a photopolymerization initiator (trade name: Irgacure 184, manufactured by Ciba Japan) A sample sheet was obtained in the same manner except that 3 g and 30 g of toluene were mixed.

[Comparative Example 1]
Paint 1 in Example 1 is paint 3 (ultraviolet curable resin (trade name: Beamset 575CB, manufactured by Arakawa Chemical) 99.5 g and photopolymerization initiator (trade name: Irgacure 184, manufactured by Ciba Japan) A sample sheet was obtained in the same manner except that 100 g of toluene was mixed.

For the sample sheets of Examples 1 and 2 and Comparative Example 1, various properties were measured under the measurement conditions shown below. The results are shown in Table 1.
<Tackiness>
The coated film surface of the coated and dried film was touched with a finger to confirm the presence or absence of adhesion of the coating film.

<Blocking property>
The coated surface (front surface) of the coated and dried coating film and the uncoated surface (back surface) of the coated film are overlapped in an atmosphere of 72 hr, temperature 23 ° C., humidity 40% with a load of 500 g / cm ² applied. The film was peeled off and the uncoated surface (back surface) was visually observed. The case where there was no adhesion or transfer of the coating film was marked with ◯, and the case where there was adhesion or transfer of the coating film was marked with X.

<Elongation>
The coated and dried coated film is cut into a test piece with a width of 15 mm and a length of 150 mm. The test piece is pulled when the distance between chucks is 100 mm and the pulling speed is 50 mm / min. The elongation was measured by the following formula.
Elongation (%) = Length of test piece when crack occurs (mm) / 100 (mm) x 100

<Pencil hardness>
The coated and dried coated film is irradiated with ultraviolet rays at an integrated light quantity of 300 mJ / cm ² to cure the coating film to obtain a test piece. The pencil hardness of the coating film was measured according to JIS K5600-5-4: 1999.

<Abrasion resistance test>
The coated and dried coated film was irradiated with ultraviolet rays at an integrated light amount of 300 mJ / cm ² to cure the coating film to obtain a test piece, and the abrasion resistance was evaluated by a steel wool resistance test. # 0000 steel wool was placed on the coating film, and the coating film was reciprocated 10 times with a load of 250 g, and the state of the coating film was observed. A sample having no scratches was indicated as ◯, a sample having some scratches as Δ, a sample having moderate scratches as ×, and a sample having many scratches as XX.

<Total light transmittance>
The coated and dried coated film was irradiated with ultraviolet rays at an integrated light amount of 300 mJ / cm ² to cure the coating film to obtain a test piece, and the total light transmittance was measured in accordance with JIS K7361-1: 1997.

<Hz>
The coated and dried coated film was irradiated with ultraviolet rays at an integrated light amount of 300 mJ / cm ² to cure the coating film to obtain a test piece, and the total light transmittance was measured in accordance with JIS K7361-1: 1997.

<Peeling force>
The coated and dried coated film was cut into a test piece with a width of 15 mm and a length of 150 mm. The coating film and the film were pulled at a chuck distance of 100 mm and a pulling speed of 50 mm / min, and the peeling force was measured.

  As shown in Table 1, the properties after curing of the coating film that was irradiated with ultraviolet rays were good in both Examples and Comparative Examples. However, before the ultraviolet irradiation, the examples had good tackiness and blocking properties and were not sticky, but the comparative examples were sticky. Moreover, although the Example had the favorable elongation before ultraviolet irradiation, in the comparative example, the crack generate | occur | produced, without extending | stretching like an Example. Thus, the sample sheets of the examples had good characteristics before and after UV curing.

  According to the present invention, the hard coat film has not only wear resistance after ultraviolet irradiation, but also has a high elongation rate and is less likely to crack even during molding before ultraviolet irradiation, and has improved tackiness. Therefore, it can be suitably used as a decorative hard coat film, a decorative film, and a decorative molded product.

DESCRIPTION OF SYMBOLS 1 ... Decorating film A ... Decorating hard coat film B ... Printing part 10 ... Base film 11 ... Antistatic layer 12 ... Release layer 13 ... Hard coat layer 14 ... Protective layer 15 ... Printing layer 16 ... Primer layer 17 ... protective layer 20 ... first molding die 21 ... second molding die 22 ... resin injection hole 31 ... molding resin 40 ... roll

Claims (7)

A hard coat layer is laminated on one side of the base film via a release layer, and the material for forming the hard coat layer contains an ultraviolet curable acrylate resin,
The elongation after drying of the hard coat layer and before ultraviolet irradiation is 200% or more,
A hard coat film for decorating, wherein the hard coat layer has a pencil hardness (JIS standard K5600-5-4: 1999) after ultraviolet irradiation of H or higher.   The hard coat film for decoration according to claim 1, wherein the hard coat layer contains a photopolymerization initiator.   The hard coat film for decoration according to claim 1 or 2, wherein an antistatic layer is laminated on a surface of the hard coat layer opposite to the base film.   A decorative film, wherein a printed layer is laminated on a hard coat layer constituting the decorative hard coat film according to any one of claims 1 to 3.   The decorative film according to claim 4, wherein a protective layer is laminated on the printed layer.   An anchoring layer is laminated | stacked on the hard-coat layer which comprises the hard-coat film for decorating in any one of Claims 1 thru | or 5. The decorating film characterized by the above-mentioned. A decorative molded product formed by using the decorative film according to claim 4.

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