TW201434632A - Film for surface decoration - Google Patents

Abstract

The present invention addresses the problem of providing a film for surface decoration, said film being capable of effecting sufficient soft and moist touch. This film for surface decoration is a film which is provided with a surface decoration layer on a base film and which is characterized in that: the surface decoration layer comprises a cured product of a curable resin compound, organic fine particles and inorganic fine particles and the surface decoration layer has a surface roughness (SMD) of 0.10 to less than 0.40μm as determined with a KES surface tester. The film for surface decoration exhibits excellent softness and moistness.

Description

Surface decorative film

The present invention relates to a film for surface decoration which can provide a wet touch.

In the prior art, the surface of various resin molded bodies such as automobile interior parts, electrical appliance outer casings, and building materials is decorated with a film, and various decorative films are known. However, most of these are reports that provide gloss, color, pattern, and the like to improve the appearance (so-called appearance), but there is almost no decorative film that provides a desired touch on the surface of the resin molded body.

However, even if the desired (for example, leather-like) appearance of the resin molded body is provided, the touch feeling which is felt at the time of touch and the touch feeling imagined by the appearance (for example, in the case of imitation leather, it is a wet touch) Sense) is far apart, it can not meet the true orientation of consumers, and can not fully enhance the value of goods. Therefore, in recent years, there have been proposals for some decorative techniques for improving the surface feel of a resin molded body.

As a decorative film which can improve the surface feel of the resin molded body, Patent Document 1 proposes a film comprising a thermoplastic polyurethane elastomer, polyurethane particles, and a carbamate (methyl group). The acrylate cosmetic material is formed, thereby providing a soft touch (suede style) in which the fingers do not get stuck and moist. Also, in the patent Document 2 proposes a film for surface decoration comprising a surface decorative layer on a surface of a substrate film, the surface decorative layer using a water-soluble resin (A), a hardener (B), and a cationicity at a predetermined ratio. The material (C) and the particles (D) are formed, and the coating amount and bulk density of the surface decorative layer are controlled to a specific range, whereby a fine white wood wood feel can be provided.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2012-219221

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2012-218284

However, in the case where the touch of the resin molded body can be provided to improve the commercial value, the touch feeling required for the resin molded body can be various depending on the appearance and the like. For example, as long as it is a leather-like appearance, it is desired to have a moist touch like a genuine leather (referred to as "wet feeling" in the present specification), and a dry touch like a genuine wood is desired as long as it is a wood-like appearance. In the various touches, the inventors of the present invention have focused on the "wet feeling" and have attempted to achieve them by the techniques described in the above patent documents. However, in the method described in the above Patent Document 1, although a certain degree of "wet feeling" is obtained, it is not possible to obtain a "wet feeling" which can be sufficiently satisfied, and the touch feeling obtained by the method described in the above Patent Document 2 is obtained. The feeling of being dry is strong, and the feeling of "wetness" is still quite distant.

In addition, in this manual, the so-called "wet feeling", specifically It is a feeling that is expressed by a non-adhesive feeling, a slippery feeling, and no rough feeling (in other words, smooth and delicate).

An object of the present invention is to provide a film for surface decoration which can sufficiently exhibit a wet touch.

In order to solve this problem, the inventors of the present invention have found that in order to fully exhibit the wet touch, it is found that the organic fine particles which are relatively easy to feel when the touch is caused by moderate resistance during touch are relatively difficult to feel the adhesive. Both of the adhesive inorganic fine particles are contained in the cured product of the curable resin compound, and the surface roughness SMD measured by the KES surface tester is controlled to a predetermined range capable of reproducing smoothness or fineness, and thus the present invention has been completed.

That is, the present invention encompasses the following constitution.

(1) A film for surface decoration comprising a film for surface decoration excellent in moist feeling of a surface decorative layer on a base film, characterized in that the surface decorative layer contains a cured product of a curable resin compound. The organic fine particles and the inorganic fine particles are used, and the surface roughness SMD measured by the KES surface tester is 0.10 μm or more and less than 0.40 μm.

(2) The film for surface finishing according to (1), wherein the surface decorative layer has a static friction index of 0.5 to 3.0 as measured by a KES surface friction tester using a 矽 sensor friction element.

(3) The film for surface finishing according to (1) or (2), wherein the organic fine particles have a glass transition point (Tg) of -10 ° C or lower.

(4) The film for surface finishing according to any one of (1) to (3), wherein the organic fine particles have a volume average particle diameter of from 1 to 30 μm.

(5) The film for surface finishing according to any one of the above-mentioned (1) to (4), wherein the organic fine particles are contained in an amount of 1 to 20 parts by mass based on 100 parts by mass of the cured product of the curable resin compound.

(6) The film for surface finishing according to any one of (1) to (5), wherein the inorganic fine particles have a volume average particle diameter of from 1 to 50 μm.

(7) The surface-coated film according to any one of the above-mentioned (1) to (6), wherein the inorganic fine particles are contained in an amount of 1 to 30 parts by mass based on 100 parts by mass of the cured product of the curable resin compound.

(8) The film for surface finishing according to any one of (1) to (7), wherein a thickness of the cured product of the curable resin compound in the surface decorative layer is 80% of the particle size of the organic fine particle. %the following.

According to the film for surface finishing of the present invention, since the surface decorative layer contains both the organic fine particles and the inorganic fine particles, the surface roughness SMD is controlled to a predetermined range, so that the wet touch can be sufficiently exhibited.

1‧‧‧Substrate film

2‧‧‧Surface finish (cured material of curable resin compound)

3‧‧‧Organic particles

4‧‧‧Inorganic particles

Fig. 1 is a scanning electron microscope (SEM) photograph of the surface of the surface decorative layer of the film for surface decoration of the present invention ((a) is 100 times and (b) is 1000 times).

Fig. 2 is a scanning electron microscope (SEM) photograph (2000 times) showing a cross section of the film for surface decoration of the present invention.

[Formation of the Invention]

The film for surface decoration of the present invention is used in a substrate film A film with a surface finish layer on at least one side, which can fully feel the wet touch, and is a decorative film excellent in moist feeling.

(surface finish)

The surface decorative layer of the present invention contains a cured product of a curable resin compound, organic fine particles, and inorganic fine particles, and is coated with, for example, a coating liquid containing a curable resin compound, organic fine particles, and inorganic fine particles. It is formed by drying and hardening on a base film.

The curable resin compound is a raw material compound or a polymer (including an oligomer) which provides a resin which is hardened by a crosslinking reaction and/or a polymerization reaction by external excitation energy, and is roughly classified into an ionizing radiation hardening type. The resin compound is cured by irradiation with an active ray (ultraviolet rays, radiation, electron beam, or the like); and the thermosetting resin compound is cured by heat. The surface decorative layer is formed of a cured product obtained by providing a film-like (layered) curable resin compound with a desired external excitation energy and hardening.

Examples of the ionizing radiation-curable resin compound include an ultraviolet curable urethane (meth) acrylate resin, an ultraviolet curable polyester (meth) acrylate resin, and an ultraviolet curable epoxy (methyl). An acrylate resin or a (meth) acrylate-based ionizing radiation-curable resin compound such as these raw material compounds. Among these, an ultraviolet curable urethane acrylate resin is preferred.

The (meth) acrylate-based ionizing radiation-curable resin compound is preferably a bifunctional raw material compound or a polymer of the raw material compound in order to improve the slipperiness of the surface decorative layer and further improve the moist feeling.

The bifunctional starting material compound may, for example, be a compound in which the hydroxyl group is an ester of two (meth)acrylic acids in a polyhydric alcohol having two or more alcoholic hydroxyl groups in one molecule. Specifically, (a) (meth)acrylic acid diesters of alkylene glycol having 2 to 12 carbon atoms: ethylene glycol di(meth)acrylate, propylene glycol di(meth)acrylate , 1,4-butanediol di(meth)acrylate, neopentyl glycol di(meth)acrylate, 1,6-hexanediol (meth)acrylate, etc.; (b) polyoxyalkylene Diol (meth)acrylic acid diesters: diethylene glycol di(meth)acrylate, triethylene glycol di(meth)acrylate, tetraethylene glycol di(meth)acrylate, two ( Dipropylene glycol (meth)acrylate, polyethylene glycol di(meth)acrylate, polypropylene glycol di(meth)acrylate, etc.; (c) (meth)acrylic acid diester of polyol: di(methyl ) neopentyl glycol acrylate, etc.; (d) bisphenol A or bisphenol A hydride of ethylene oxide or propylene oxide adduct (meth) acrylate diester: 2, 2'-double (4-acryloxyethoxypropyl)propane, 2,2'-bis(4-propoxypropoxyphenyl)propane, etc.; (e) the polyfunctional isocyanate compound and two or more A compound having an alcoholic hydroxyl group is pre-reacted to obtain a terminal isocyanate group a urethane (meth) acrylate having two (meth) acryloyl groups in a molecule obtained by reacting an alcoholic hydroxyl group-containing (meth) acrylate. (f) a compound having two or more epoxy groups in the molecule, and having two (meth) propylene in the molecule obtained by reacting acrylic acid or methacrylic acid An epoxy group-containing epoxy (meth) acrylate or the like.

Examples of the thermosetting resin compound include a thermosetting urethane resin, a thermosetting acrylic resin, a thermosetting polyoxynoxy resin, a thermosetting polyester resin, and a thermosetting vinyl ester resin. A thermosetting epoxy resin, a thermosetting phenol resin, etc. are especially preferable as a thermosetting urethane resin.

Specific examples of the thermosetting urethane resin include, for example, polyester polyurethane, polyether polyurethane, polycarbonate polyurethane, and poly In addition to the ether polycarbonate type polyurethane, etc., the polyurethanes are modified with other polymers having different skeletons (for example, polyfluorene modified, fluorine-based polymer modified, polyacrylate) Those who have been modified by polymers).

In the case of the curable resin compound, it is preferred that the elasticity of the cured product is 100% or more. Thereby, not only the wet touch feeling but also the formability when applied to the decorative object can be provided. Further, the elasticity of the cured product of the curable resin compound is defined by JIS-K7113, and specifically, it can be measured, for example, by a method described later in the examples.

The organic fine particles mainly show a slipperiness in the surface decorative layer. The organic fine particles are not particularly limited, and examples thereof include crosslinked urethane fine particles, crosslinked acrylic fine particles, crosslinked styrene fine particles, crosslinked rubber fine particles, polyfluorinated fine particles, and nylon fine particles. Preferred among these are crosslinked urethane microparticles. The organic fine particles may be used alone or in combination of two or more.

The glass transition point (Tg) of the organic fine particles is preferably -10 ° C or lower, more preferably -15 ° C or lower, and even more preferably -20 ° C or lower. Good is below -30 °C. When the glass transition point (Tg) of the organic fine particles is in this range, the film for surface decoration which further increases the moist feeling is obtained.

The particle size of the organic fine particles is preferably 1 μm or more and 30 μm or less, more preferably 3 μm or more and 20 μm or less, and still more preferably 5 μm or more and 10 μm or less. When the particle diameter of the organic fine particles is within this range, the film for surface decoration which further increases the moisturizing feeling is obtained. In addition, as long as the organic fine particles having the particle diameter of the range are present, the effect of improving the moisturizing feeling can be obtained. Therefore, if it is a small amount of about 15% by mass or less of the entire organic fine particles, the particle diameter of the entire range is not included. The organic fine particles may contain organic ultrafine particles having a volume average particle diameter of less than 1 μm. The particle diameter of the organic fine particles can be measured by a method described later in the examples.

The shape of the organic fine particles is not particularly limited, and any shape such as a spherical shape, a flat plate shape, a rod shape, an indefinite shape, and an aspect ratio may be used. However, in terms of exhibiting a moist feeling, a spherical shape is preferable.

The organic fine particles are preferably contained in an amount of 1 part by mass or more and 20 parts by mass or less, more preferably 3 parts by mass or more and 15 parts by mass or less based on 100 parts by mass of the cured product of the curable resin compound. When the content of the organic fine particles is too small, the effect of the action of the organic fine particles is insufficient, and as a result, the moist feeling is lowered, and even if it is too large, the moisturizing feeling is lowered.

Inorganic microparticles mainly provide a dry touch-like feel to the surface decorative layer and exhibit difficulty in adhesion. The inorganic fine particles are not particularly limited, and examples thereof include titanium dioxide, calcium carbonate, cerium oxide ( vermiculite, colloidal vermiculite), barium sulfate, aluminum oxide, aluminum hydroxide, zeolite, zinc oxide, talc, and benzopyrene. A benzoguanamine particle or the like. Preferred in these 矽, talc. The inorganic fine particles may be used alone or in combination of two or more.

The particle diameter of the inorganic fine particles is preferably 1 μm or more and 50 μm or less, more preferably 3 μm or more and 30 μm or less, and still more preferably 5 μm or more and 20 μm or less. When the particle diameter of the inorganic fine particles is within this range, the film for surface decoration which further increases the wet feeling is obtained. In addition, since the inorganic fine particles having the particle diameter in the range are present, the moisturizing effect-improving effect can be obtained. Therefore, if it is a small amount of about 15% by mass or less of the entire inorganic fine particles, the particle diameter of the entire range is not included. The inorganic fine particles may contain inorganic ultrafine particles having a volume average particle diameter of less than 1 μm. Further, the particle diameter of the inorganic fine particles can be measured by a method described later in the examples.

The shape of the inorganic fine particles is not particularly limited, and any shape such as a spherical shape, a flat plate shape, a rod shape, an indefinite shape, and an aspect ratio may be employed. However, in order to exhibit a moist feeling, it is preferably spherical.

The inorganic fine particles are preferably contained in an amount of 1 part by mass or more and 30 parts by mass or less, more preferably 5 parts by mass or more and 20 parts by mass or less, and still more preferably 17 parts by mass or less, based on 100 parts by mass of the cured product of the curable resin compound. Further, it is more preferably 15 parts by mass or less, and particularly preferably 13 parts by mass or less. When the content of the inorganic fine particles is too small, the effect of the inorganic fine particles is insufficient, and as a result, the moist feeling is lowered, and even if it is too large, the moist feeling is lowered.

In the case where an ionizing radiation curable resin compound is used as the curable resin compound, it is preferred to add a photopolymerization initiator to the coating liquid when the surface decorative layer is formed.

The photopolymerization initiator may, for example, be acetophenone , 2,2-diethoxyethyl benzene, p-dimethyl acetophenone, p-dimethylamino propyl benzene, benzophenone, 2-chlorobenzophenone, 4,4'-dichloro Benzophenone, 4,4,-bisdiethylaminobenzophenone, mischantrone, diphenylethylenedione, benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, methyl benzalkonate, a carbonyl compound such as isopropyl-α-hydroxyisobutyl benzene, α-hydroxyisobutyl benzene, 2,2-dimethoxy-2-phenyl acetophenone or 1-hydroxycyclohexyl phenyl ketone; Sulfur such as tetramethylthiuram monosulfide, tetramethylthiuram disulfide, thioxanthone, 2-chlorothioxanthone, 2-methylthioxanthone a compound; a peroxide compound such as a benzamidine peroxide or a di-tertiary butyl peroxide; and the like. The photopolymerization initiator may be used singly or in combination of two or more.

The amount of the photopolymerization initiator to be added is preferably from 0.01 part by mass to 15 parts by mass, more preferably from 0.1 part by mass to 10 parts by mass, per 100 parts by mass of the ionizing radiation curable resin compound. When the amount of the photopolymerization initiator is too small, it takes time to harden, and there is a possibility that the productivity is lowered. When the amount is too large, the surface addition layer is yellowed by the photopolymerization initiator.

In the case where a thermosetting resin compound is used as the curable resin compound, it is preferred to add a crosslinking agent to the coating liquid when forming the surface decorative layer.

Examples of the crosslinking agent include, for example, tolylene diisocyanate (TDI), diphenylmethane diisocyanate (MDI), hexamethylene diisocyanate (HDI), and the like. An isocyanate-based crosslinking agent such as sulphonone diisocyanate (IPDI) is particularly preferred as hexamethylene diisocyanate or isophorone diisocyanate because of its excellent light resistance. Further, depending on the functional group of the thermosetting resin compound, an epoxy crosslinking agent may be used. An oxazoline crosslinking agent, a carbodiimide crosslinking agent, a melamine crosslinking agent, and the like. The crosslinking agent may be used alone or in combination of two or more.

The amount of the crosslinking agent to be added is not particularly limited. For example, it is preferably 0.1 parts by mass or more and 30 parts by mass or less, more preferably 1 part by mass or more and 10 parts by mass or less per 100 parts by mass of the thermosetting resin compound. When the amount of the crosslinking agent is too small, it takes time to harden and the productivity is lowered. When the amount is too large, the resin becomes hard, so that the wet feeling is insufficient.

The coating liquid at the time of forming the surface decorative layer may further contain a conventionally known surfactant as a leveling agent insofar as the effects of the present invention are not impaired. Thereby, the surface tension of the coating liquid can be lowered, and the appearance of the surface decorative layer can be improved, in particular, leakage due to leakage of fine bubbles, adhesion due to adhesion of foreign matter, and the like, and small cavities in the drying step can be improved. Further, in the coating liquid for forming the surface decorative layer, a well-known additive may be appropriately contained in addition to the above-mentioned surfactant.

For example, the curable resin compound, the organic fine particles, the inorganic fine particles, and various additives (photopolymerization initiator, crosslinking agent, leveling agent, etc.) which are contained as needed can be added to an appropriate organic organic layer. The coating liquid is prepared in a solvent, applied to a base film, and dried and hardened.

The organic solvent which can be used for forming the coating layer for forming the surface decorative layer may, for example, be a ketone solvent such as methyl ethyl ketone or methyl isobutyl ketone; an alcohol solvent such as methanol, ethanol or isopropanol; ether And a glycol ether solvent such as propylene glycol monomethyl ether acetate; an ester solvent such as ethyl acetate or butyl acetate; a hydrocarbon solvent such as toluene or xylene. These organic solvents may be used singly or in combination of two or more.

For the coating method of the coating liquid when the surface decorative layer is formed, a gravure coating method, a roll coating method, a dipping method, a spray coating method, a curtain coating method, an air knife coating method, a knife coating method, a reverse roll coating method, or the like may be employed. A well-known coating method such as a method, a bar coating method, or a lip coat method, wherein a roll-to-roll method can be applied, and a gravure coating method capable of uniform coating is preferable. The best is reverse gravure. The coating amount of the coating liquid can be appropriately set in accordance with the desired film thickness of the surface decorative layer or the like.

The drying temperature after the application of the coating liquid is not particularly limited, and is, for example, preferably 40° C. or higher and 130° C. or lower, and more preferably 50° C. or higher and 80° C. or lower. When the drying temperature is too low, there is a possibility that the solvent remains in the coating film. When the drying temperature is too high, the coating film formed is abnormal (bubble, small pit, etc.) due to excessive heating, which may cause defects in appearance. .

In the case where an ionizing radiation-curable resin compound is used as the curable resin compound, the irradiation amount of the active ray to be hardened is preferably 50 mJ/cm ² or more and 1000 mJ/cm ² or less, and more preferably 150 mJ. /cm ² or more and 700 mJ/cm ² or less. When the amount of accumulated light is too small, the polymerization reaction of the ionizing radiation-curable resin compound is not promoted, and the surface hardness tends to be remarkably lowered. When the amount is too large, the base film may be deformed by the influence of heat generated.

In the case where a thermosetting resin compound is used as the curable resin compound, the heating temperature for hardening is preferably 40 ° C. The above 150 ° C or less, more preferably 50 ° C or more and 100 ° C or less. When the heating temperature at the time of hardening is too low, the polymerization reaction of the thermosetting resin compound cannot be promoted, and the surface hardness tends to be remarkably lowered. When the temperature is too high, the base film may be deformed. Further, the heating at the time of curing may also serve as drying after applying the coating liquid.

When forming the surface decorative layer, it is preferable to make the film thickness of the layer of the cured product of the curable resin compound smaller than the particle diameter of the organic fine particles, so that the particles are stacked to have a moderately large thickness of the layer of the cured product. The surface state of the shape. The surface state of such a surface finish layer is shown in Fig. 1. When the surface decorative layer is in such a surface state, it is easy to control the surface roughness SMD and the static friction index which will be described later, and it is easy to exhibit a moist feeling.

When the thickness of the layer of the cured product of the curable resin compound is smaller than the particle diameter of the organic fine particles, specifically, when the surface decorative layer is cut by a line containing the center of one organic fine particle, it is observed. It is preferable to make the minimum value of the thickness of the cured product of the curable resin compound in the surface decorative layer to be 80% or less of the particle diameter of the organic fine particles. If it is described in detail in Fig. 2 showing the cross section of the surface decorative layer, it is as follows. In other words, the thickness of the surface decorative layer (cured material 2 of the curable resin compound) provided on the base film 1 is usually thick in the portion where the organic fine particles 3 are present, and in the portion where the organic fine particles 3 are not present. thin. In the portion where the organic fine particles 3 are not present, the thickness of the cured product 2 of the minimum curable resin compound (B in FIG. 2) is preferably the particle diameter of the organic fine particles 3 (A in FIG. 2) ) 80% or less. More preferably, the minimum value of the thickness of the cured product of the curable resin compound in the surface decorative layer is 75% or less, more preferably 70% or less, still more preferably 50% or less, and even more preferably the particle diameter of the organic fine particles. 30% the following. In addition, whether the particle diameter of the organic fine particles (A in FIG. 2) and the minimum thickness of the cured resin compound cured material (B in FIG. 2) are in the above relationship, and the surface decorative film can be used. It was cut and judged by a scanning electron microscope (SEM) observation section.

The minimum film thickness of the surface decorative layer, that is, the minimum thickness of the cured product of the curable resin compound constituting the surface decorative layer, preferably satisfies the relationship with the particle diameter of the above organic fine particles, specifically, the lower limit is Preferably, it is 0.6 μm, more preferably 1.0 μm. Further, the upper limit of the minimum film thickness of the surface decorative layer is preferably 100 μm, more preferably 80 μm, still more preferably 60 μm, and particularly preferably 20 μm. When the minimum thickness of the surface decorative layer is too thin, the organic fine particles and the inorganic fine particles are detached, and the touch is changed during use. When the thickness is too thick, the organic fine particles are easily buried in the coating film, and the surface is convexly concave and convex. Small, it is difficult to obtain the touch of purpose. There are also defects in the hardening of the curable resin compound or the curling caused by the hardening shrinkage.

Further, in the present invention, the minimum thickness of the surface decorative layer is measured by scanning electron microscopy (SEM) photographs of the cross-section of the surface decorative film at 10 places, and the hardening property is measured in each of the thinnest portions of each photograph. The thickness of the cured product of the resin compound was determined by averaging 10 points.

In the surface decorative layer of the present invention, it is extremely important that the surface roughness SMD measured by a KES surface tester is 0.10 μm or more and less than 0.40 μm. Here, KES (Kawabata Evaluation SYSTEM) refers to an objective evaluation method for the fabric texture of clothes established by the "Quality Measurement and Standardization Research Committee" set up by the Japan Fiber Machinery Society. The surface roughness SMD is an index indicating the surface texture (roughness, roughness, convexity, convexity, etc.). The smaller the value, the smaller the roughness, the coarseness, the convexity and the concaveness, and the smoothness. Careful meaning. Therefore, as long as the surface roughness SMD of the surface decorative layer is within this range, the rough feeling disappears, and a wet touch can be sufficiently provided. The surface roughness SMD of the surface decorative layer is preferably 0.12 μm or more and 0.38 μm or less, more preferably 0.14 μm or more and 0.36 μm or less. Further, in the KES surface tester, an automatic surface tester (KES-FB4) manufactured by Kato Tech Co., Ltd. can be used, and the measurement of the surface roughness SMD can be carried out, for example, by a method described later in the examples.

Further, the surface is decorated with a layer having a static friction index of 0.5 to 3.0 as measured by a KES surface friction tester using a 矽 sensor friction element. The static friction index is an index indicating the resistance feeling, and the larger the value, the greater the resistance change. Moreover, when the degree of resistance is moderate, the slippery feeling is induced, and the moist feeling is further improved. Therefore, as long as the static friction index of the surface decorative layer is within this range, the slippery feeling can be improved, and a further moist-like touch can be provided. The static friction index of the surface decorative layer is preferably 0.9 or more and 2.8 or less, more preferably 1.0 or more and 2.5 or less. Further, in the KES surface friction tester, a frictional sensitivity tester (KES-SE) manufactured by Kato Tech Co., Ltd. can be used, and the measurement of the static friction index can be carried out, for example, by a method described later in the examples.

In order to make the surface decorative layer have the surface roughness SMD and the static friction index in the above range, for example, the cured product thickness (surface decorative layer thickness), the organic fine particle amount, and the inorganic fine particle amount of the curable resin compound are controlled. The particle diameter of the organic fine particles, the particle diameter of the inorganic fine particles, the relationship between the thickness of the cured resin compound and the particle diameter of the organic fine particles, the amount of the organic fine particles, and the amount of the inorganic fine particles. Very good for controlling all.

(substrate film)

The base film is not particularly limited, but is preferably a plastic film. Examples of the resin constituting the base film include polyester, polyolefin, polyamide, polyurethane, polyether, polystyrene, polyacrylic resin, polyethylene resin, and the like. Zhong Tejia is polyester.

As the constituent resin of the base film, a polyester which can be preferably used, for example, an aromatic dicarboxylic acid such as terephthalic acid, isophthalic acid or naphthalene dicarboxylic acid or an ester thereof, such as ethylene glycol or two The glycol of ethylene glycol, 1,4-butanediol, and neopentyl glycol is produced by polycondensation. In the polycondensation of an aromatic dicarboxylic acid and a diol, a method of directly reacting; a transesterification reaction of an alkyl ester of an aromatic dicarboxylic acid with a diol; and a method of polycondensation; or aroma A general method such as a method of polycondensation of a diethylene glycol dicarboxylate. Representative examples of such polyesters include polyethylene terephthalate, polybutylene terephthalate, and polyethylene-2,6-naphthalate. The polyesters may be homopolymers or copolymers. In the case of a copolymer, the polyester unit such as ethylene terephthalate unit, butylene terephthalate unit, and ethylene-2,6-naphthalate unit is preferably 70 mol% or more. Preferably, the amount is 80% or more, and more preferably 90% or more.

The base film may be an unstretched film, and is preferably an extended film from the viewpoint of mechanical strength of the film for surface decoration. The extension may be a one-axis extension or a biaxial extension, but from the viewpoint of heat resistance or solvent resistance, a biaxially stretched film is preferred.

The thickness of the base film is not particularly limited, but is preferably 35 to 350 μm, more preferably 50 to 260 μm, still more preferably 75 to 200 μm. base When the material film is too thick, the formability when applied to a decorative object may be lowered. In addition to the use, the cost is also disadvantageous. When the film is too thin, the resulting surface-applied film may be used. The tendency to deteriorate the handling.

Further, as will be described later, in the case where a printing layer providing a pattern or a color is provided on the surface of the base film opposite to the surface decorative layer, the base film preferably has a total light transmittance of 80% or more. When the total light transmittance of the base film is too low, the visibility of the printed layer seen from the side of the surface decorative layer is insufficient.

(printing layer, adhesive layer, etc.)

The film for surface decoration of the present invention may have a printed layer which provides a pattern or a color on the surface of the base film opposite to the surface decorative layer. Thereby, an excellent moist feeling can be provided while the desired appearance is decorated.

The printing method is not particularly limited, and various printing methods such as thermal transfer, thermal transfer, sublimation transfer, gravure printing, stencil printing, letterpress printing, lithography, magnetic, electrostatic, and inkjet methods can be applied.

Moreover, the film for surface decoration of the present invention may have an adhesive layer on the surface of the base film opposite to the surface decorative layer. In this case, the film for surface decoration of the present invention can be adhered to the resin molded body as a decorative object by the adhesive force of the adhesive layer.

The adhesive which can be used for the formation of the adhesive layer is not particularly limited, and examples thereof include natural rubber, synthetic rubber, chloroprene rubber, NBR, butyl rubber, urethane rubber, vinyl acetate and copolymers thereof, and acrylic acid. Solvent-based binders such as copolymers thereof; natural rubber latex, chloroprene latex, NBR latex, vinyl acetate and copolymers thereof, acrylic acid Emulsion-type binders such as copolymers thereof; water-soluble binders such as polyvinyl alcohol, starch, animal glue; thermosetting properties such as epoxy resin, polyester resin, urea and melamine resin, phenol resin, polyurethane resin, etc. Resin; hot melt type binder such as paraffin wax, microcrystalline wax, asphalt, resin wax mixture; polyolefin such as polyethylene, unsaturated polyester, and the like. The adhesive may be one type or two or more types.

In the case where the film for surface decoration of the present invention has the adhesive layer, it is preferred to provide a release layer on the adhesive layer. In this way, the adhesive layer of the adhesive layer can be easily removed by the release layer when the film for surface decoration of the present invention is adhered to the resin molded body to be decorated, and the release layer can be easily peeled off during the adhesion. Further, the release layer can be formed, for example, by coating a known release agent or the like.

The present application claims priority rights in accordance with Japanese Patent Application No. 2013-014816 filed on Jan. 29, 2013. The entire contents of the specification of Japanese Patent Application No. 2013-014816, filed on Jan. 29, 2013, the entire content of

[Examples]

In the following, the present invention will be more specifically described by the following examples, but the present invention is not limited by the following examples, and may be carried out by appropriately changing the scope of the present invention, which is included in the present invention. Within the technical scope.

In addition, in the following, "%" and "part" of the content rate and the usage amount are shown as mass standards unless otherwise specified.

The method for determining the physical property values in the examples and comparative examples is as follows. The following.

(surface roughness SMD)

The upper and lower thickness variations of the surface of the sample (surface decorative layer of the film) were measured using an automated surface testing machine (KES-FB4) manufactured by Kato Tech Co., Ltd. The measurement conditions were a piano line with a 0.098 N load and a 0.5 mm diameter with a width of 5 mm, and a friction distance of 30 mm, an analysis distance of 20 mm, and a sample moving speed of 1 mm/sec. Further, the measurement was carried out in an environment of 65% RH at 20 ° C, and the average of five measurements was used.

(static friction index)

The surface friction coefficient was measured using a friction tester (KES-SE) manufactured by Kato Tech. The measurement conditions were as follows using a rod of a standard friction element, and a 矽 sensor (10 mm × 10 mm × 3 mm) manufactured by Kato Tech Co., Ltd. was used for the friction element, and the load at the time of friction was set to 0.245 N/cm ² (25 gf/cm ² ). The sensitivity H (sensitivity 20 g/V) was measured. Other conditions such as friction distance and friction speed are as specified in the device specifications (friction distance 30 mm, resolution distance 20 mm, sample moving speed 1 mm/sec). Next, a data logger (a multi-input data collecting system manufactured by Keyence Corporation) was connected to the friction sensation tester to obtain the voltage value of the load obtained at the time of measurement, and the voltage value at the time when the friction element started moving was used as the static friction index. Further, the measurement was carried out in an environment of 65% RH at 20 ° C, and the average of five measurements was used. In addition, when the static friction index is measured by using a commercially available biaxially stretched polyester film ("Softshine (registered trademark)" manufactured by Toyobo Co., Ltd.: thickness: 125 μm) as a sample, it is confirmed that three or more values are obtained in advance. Used in the assay.

(particle size)

Laser diffraction type particle size distribution measuring device manufactured by Shimadzu Corporation (SALD-200V), water was measured as a dispersion medium, and the volume average particle diameter was determined from the particle size distribution represented by volume.

(elasticity of cured product of curable resin compound)

A rectangular test piece having a width of 1 cm and a length of 15 cm was cut out from the obtained film for surface decoration, and a tensile tester ("AG-IS" manufactured by Shimadzu Corporation) was used to make the base at a stretching speed of 20 mm/min. The polyester film of the film is stretched until it breaks. In either embodiment, no cracking occurred in the surface finish layer at the point of time when the base film was broken, and even in any of the examples, the base film did not break to 120% of elasticity. From this, it can be said that the cured product of the curable resin compound in the film for surface decoration obtained in each of the examples has an elasticity of 100% or more.

The organic fine particles or inorganic fine particles used in the examples and comparative examples are as follows.

(organic particles)

Particle No. 1: Crosslinked urethane fine particles ("Art-pearl (registered trademark)" P800T, manufactured by K.K., Ltd.; Tg-34 ° C, volume average particle diameter: 6 μm)

Particle No. 2: Crosslinked urethane fine particles ("Art-pearl (registered trademark) C-800" manufactured by K.K., Ltd.; Tg-13 ° C, volume average particle diameter: 6 μm)

Particle No. 3: Crosslinked urethane fine particles ("Art-pearl (registered trademark) AK-200TR" manufactured by K.K., Ltd.; Tg-34 ° C, volume average particle diameter: 32 μm)

(inorganic particles)

Particle No. 1: 矽石 ("Silysia 446" by Fuji Silysia Chemical Co., Ltd. "Volume average particle size 6μm)

Particle No. 2: vermiculite ("sicastar" manufactured by Corefront Co., Ltd.; volume average particle diameter: 70 μm)

Particle No. 3: colloidal vermiculite (Snowtex (registered trademark) MEK-ST, manufactured by Nissan Chemical Co., Ltd.; volume average particle diameter: 12.5 nm)

(Example 1)

A biaxially oriented polyester film ("Softshine (registered trademark) TA009, manufactured by Toyobo Co., Ltd., thickness: 125 μm) containing a copolymerized polyester having an easy-to-bond layer on both sides was used as a base film, and a wire bar was coated thereon. The coating liquid prepared by the following formulation is such that the thickness of the cured layer after application hardening (in detail, the minimum thickness) becomes a predetermined target value (3 μm) (at this time, the actual coating amount is 3.5 g in a dry state). m ² ), dried by hot air at a temperature of 80 ° C for 60 seconds, and then cured by a cumulative light amount of 200 mJ/cm ² under a high pressure mercury lamp to obtain a film for surface decoration. The surface finish thickness (SMD) and static friction index of the obtained surface-added film are shown in Table 1.

In addition, the obtained film for surface decoration was cut in a line containing one organic fine particle, and the cross section thereof was observed with an electron microscope (2000 times), and as a result, a photograph shown in Fig. 2 was obtained. According to this SEM photograph, the particle diameter of the organic fine particles to be cut was 9 μm, and the minimum thickness of the cured product of the curable resin compound was 2 μm. That is, the minimum value of the cured product thickness of the curable resin compound in the surface decorative layer is 22.2% of the particle diameter of the organic fine particles.

[Coating liquid preparation]

The following materials were mixed in the mass ratio shown below and stirred for 30 minutes. Dissolve on it. Next, the coating liquid was prepared by removing the undissolved matter using a filter having a nominal filtration accuracy of 100 μm.

‧ methyl ethyl ketone: 15.384% by mass

‧ urethane acrylate UV/EB hardening resin ("AUP-707" manufactured by Tokushiki Co., Ltd.; bifunctional, solid content 20% by mass): 81.191% by mass

‧Organic Particles No.1 ("Art-pearl (registered trademark)" P800T, manufactured by Kokusai Industrial Co., Ltd.): 0.855 mass%

‧Inorganic particulates No.1 ("sylysia 446" manufactured by Fuji Silysia Chemical Co., Ltd.: 1.709% by mass

‧Photopolymerization initiator (Irgacure (registered trademark) 184, manufactured by BASF Japan): 0.812% by mass

‧ leveling agent (polyoxygenated surfactant ("DC57" manufactured by Dow Corning Toray Co., Ltd.): 0.050% by mass

(Example 2)

In the first embodiment, in the case of preparing the coating liquid, organic fine particle No. 2 ("Art-pearl (registered trademark)" C-800, manufactured by Konica Minolta Co., Ltd.) was used instead of the organic fine particle No. 1, and Example 1 was used. In the same manner, a film for surface decoration was obtained. The surface roughness (SMD) and static friction index of the surface decorative layer in the obtained surface-added film are shown in Table 1.

In addition, the obtained film for surface decoration was cut in a line containing one organic fine particle, and the cross section thereof was observed by an electron microscope (2000 times), and as a result, the thickness of the cured product of the curable resin compound in the surface decorative layer was the minimum. It is 22.8% of the particle diameter of the organic fine particles.

(Example 3)

In the same manner as in Example 1, except that the coating liquid was prepared in the same manner as in the first embodiment, a film for surface decoration was obtained.

‧ methyl ethyl ketone: 25.753 mass%

‧ urethane acrylate UV/EB hardening resin ("AUP-707" manufactured by Tokushiki Co., Ltd.; bifunctional, solid content 20% by mass): 67.809% by mass

‧Organic microparticles No.1 ("Art-pearl (registered trademark)" P800T, manufactured by Kokusai Industrial Co., Ltd.): 4.283 mass%

‧Inorganic particulates No.1 ("sylysia 446" manufactured by Fuji Silysia Chemical Co., Ltd.: 1.428% by mass

‧Photopolymerization initiator (Irgacure (registered trademark) 184, manufactured by BASF Japan): 0.678% by mass

‧ leveling agent (polyoxygenated surfactant ("DC57" manufactured by Dow Corning Toray Co., Ltd.): 0.050% by mass

The surface roughness (SMD) and static friction index of the surface decorative layer in the obtained surface-added film are shown in Table 1.

In addition, the obtained film for surface decoration was cut in a line containing one organic fine particle, and the cross section thereof was observed by an electron microscope (2000 times), and as a result, the minimum thickness of the cured product of the curable resin compound in the surface decorative layer was observed. It is 34.5% of the particle diameter of the organic fine particles.

(Example 4)

In the first embodiment, in the case of preparing the coating liquid, organic fine particles No. 3 ("Art-pearl (registered trademark)" AK-200TR) manufactured by Konica Minolta Co., Ltd.) was used instead of the organic fine particles No. 1, and examples were used. 1 was carried out in the same manner to obtain a film for surface decoration. The surface of the obtained surface decorative film is added The surface roughness (SMD) and static friction index of the finish are shown in Table 1.

In addition, the obtained film for surface decoration was cut in a line containing one organic fine particle, and the cross section thereof was observed by an electron microscope (2000 times), and as a result, the thickness of the cured product of the curable resin compound in the surface decorative layer was the minimum. The particle diameter of the organic fine particles was 16.8%.

(Example 5)

In the same manner as in Example 1, except that the inorganic fine particles No. 2 ("Sicastar" manufactured by Corefront Co., Ltd.) was used in the first embodiment, the inorganic fine particles No. 2 ("Sicastar" manufactured by Corefront Co., Ltd.) was used in the same manner as in Example 1. film. The surface roughness (SMD) and static friction index of the surface decorative layer in the obtained surface-added film are shown in Table 1.

In addition, the obtained film for surface decoration was cut in a line containing one organic fine particle, and the cross section thereof was observed by an electron microscope (2000 times). As a result, the minimum thickness of the cured product of the curable resin compound in the surface decorative layer was The particle size of the organic fine particles was 76.7%.

(Example 6)

In the same manner as in the first embodiment, the inorganic fine particles No. 3 ("Snowtex (registered trademark)" MEK-ST, manufactured by Nissan Chemical Co., Ltd.) was used in the same manner as in the first embodiment except for the inorganic fine particles No. 1. The film was applied to obtain a surface decorative film. The surface roughness (SMD) and static friction index of the surface decorative layer in the obtained surface-added film are shown in Table 1.

In addition, the obtained film for surface decoration was cut in a line containing one organic fine particle, and the cross section thereof was observed by an electron microscope (2000 times). As a result, the minimum thickness of the cured product of the curable resin compound in the surface decorative layer was The particle size of the organic fine particles was 25.9%.

(Example 7)

In the same manner as in Example 1, except that the coating liquid was prepared in the same manner as in the first embodiment, a film for surface decoration was obtained.

‧ methyl ethyl ketone: 27.580% by mass

‧ urethane acrylate UV/EB hardening resin ("AUP-707" manufactured by Tokushiki Co., Ltd.; bifunctional, solid content 20% by mass): 65.460% by mass

‧Organic Particles No.1 (Art-pearl (registered trademark) P800T, manufactured by Gensal Industries Co., Ltd.): 0.689 mass%

‧Inorganic particulates No.1 ("sylysia 446" manufactured by Fuji Silysia Chemical Co., Ltd.: 5.560 mass%

‧Photopolymerization initiator (Irgacure (registered trademark) 184, manufactured by BASF Japan): 0.661% by mass

‧ leveling agent (polyoxygenated surfactant ("DC57" manufactured by Dow Corning Toray Co., Ltd.): 0.050% by mass

The surface roughness (SMD) and static friction index of the surface decorative layer in the obtained surface-added film are shown in Table 1.

In addition, the obtained film for surface decoration was cut in a line containing one organic fine particle, and the cross section thereof was observed by an electron microscope (2000 times), and as a result, the thickness of the cured product of the curable resin compound in the surface decorative layer was the minimum. It is 74.8% of the particle diameter of the organic fine particles.

(Example 8)

In the same manner as in Example 1, except that the coating liquid was prepared in the same manner as in Example 1, a film for surface decoration was obtained.

‧ methyl ethyl ketone: 17.656 mass%

‧ urethane acrylate UV/EB hardening resin ("AUP-707" manufactured by Tokushiki Co., Ltd.; bifunctional, solid content 20% by mass): 77.930% by mass

‧Organic Particles No.1 (Art-pearl (registered trademark) P800T, manufactured by Kokusai Industrial Co., Ltd.): 0.779% by mass

‧Inorganic particulates No.1 ("sylysia 446" manufactured by Fuji Silysia Chemical Co., Ltd.: 2.805 mass%

‧Photopolymerization initiator (Irgacure (registered trademark) 184, manufactured by BASF Japan): 0.779% by mass

‧ leveling agent (polyoxygenated surfactant ("DC57" manufactured by Dow Corning Toray Co., Ltd.): 0.050% by mass

The surface roughness (SMD) and static friction index of the surface decorative layer in the obtained surface-added film are shown in Table 1.

In addition, the obtained film for surface decoration was cut in a line containing one organic fine particle, and the cross section thereof was observed by an electron microscope (2000 times), and as a result, the minimum thickness of the cured product of the curable resin compound in the surface decorative layer was observed. It is 70.8% of the particle diameter of the organic fine particles.

(Example 9)

In the same manner as in Example 1, except that the coating liquid was prepared in the same manner as in Example 1, a film for surface decoration was obtained.

‧ methyl ethyl ketone: 16.160% by mass

‧ urethane acrylate UV/EB hardening resin ("AUP-707" manufactured by Tokushiki Co., Ltd.; bifunctional, solid content 20% by mass): 79.800% by mass

‧Organic Particles No.1 ("Art-pearl" Trademark)"P800T): 0.798% by mass

‧Inorganic particulates No.1 ("sylysia 446" manufactured by Fuji Silysia Chemical Co., Ltd.: 2.394% by mass

‧Photopolymerization initiator (Irgacure (registered trademark) 184, manufactured by BASF Japan): 0.798 mass%

‧ leveling agent (polyoxygenated surfactant ("DC57" manufactured by Dow Corning Toray Co., Ltd.): 0.050% by mass

The surface roughness (SMD) and static friction index of the surface decorative layer in the obtained surface-added film are shown in Table 1.

In addition, the obtained film for surface decoration was cut in a line containing one organic fine particle, and the cross section thereof was observed by an electron microscope (2000 times), and as a result, the thickness of the hardened resin compound in the surface decorative layer was the smallest. The value is 68.2% of the particle diameter of the organic fine particles.

(Embodiment 10)

Except in Example 1, the place where the coating liquid was prepared was changed to the following In the same manner as in Example 1, except for the above, a film for surface decoration was obtained.

‧ methyl ethyl ketone: 15.122% by mass

‧ urethane acrylate UV/EB hardening resin ("AUP-707" manufactured by Tokushiki Co., Ltd.; bifunctional, solid content 20% by mass): 81.098% by mass

‧Organic Particles No.1 (Art-pearl (registered trademark) P800T, manufactured by Kokusai Industrial Co., Ltd.): 0.811% by mass

‧Inorganic particulates No.1 ("sylysia 446" manufactured by Fuji Silysia Chemical Co., Ltd.: 2.109% by mass

‧Photopolymerization initiator (Irgacure, manufactured by BASF Japan) Registered trademark) 184"): 0.811% by mass

‧ leveling agent (polyoxygenated surfactant ("DC57" manufactured by Dow Corning Toray Co., Ltd.): 0.050% by mass

The surface roughness (SMD) and static friction index of the surface decorative layer in the obtained surface-added film are shown in Table 1.

In addition, the obtained film for surface decoration was cut in a line containing one organic fine particle, and the cross section thereof was observed by an electron microscope (2000 times), and as a result, the minimum thickness of the cured product of the curable resin compound in the surface decorative layer was observed. It is 66.4% of the particle diameter of the organic fine particles.

(Example 11)

In the same manner as in Example 1, except that the coating liquid was prepared in the same manner as in the first embodiment, a film for surface decoration was obtained.

‧ methyl ethyl ketone: 31.622% by mass

‧ Thermosetting urethane resin ("NY-331" manufactured by DIC Corporation; solid content: 25 mass%): 64.953 mass%

‧Organic Particles No.1 ("Art-pear1 (registered trademark)" P800T, manufactured by Kokusai Industrial Co., Ltd.): 0.855 mass%

‧Inorganic particulates No.1 ("sylysia 446" manufactured by Fuji Silysia Chemical Co., Ltd.: 1.709% by mass

‧Isocyanate cross-linking agent ("CORONATE (registered trademark) HL" manufactured by Japan Polyurethane Co., Ltd.): 0.812% by mass

‧ leveling agent (polyoxygenated surfactant ("DC57" manufactured by Dow Corning Toray Co., Ltd.): 0.050% by mass

The surface roughness (SMD) and static friction index of the surface decorative layer in the obtained surface-added film are shown in Table 1.

In addition, the obtained film for surface decoration was cut in a line containing one organic fine particle, and the cross section thereof was observed by an electron microscope (2000 times), and as a result, the thickness of the cured product of the curable resin compound in the surface decorative layer was the minimum. It is 22.6% of the particle diameter of the organic fine particles.

(Comparative Example 1)

In the same manner as in Example 1, except that the coating liquid was prepared in the same manner as in the first embodiment, a film for surface decoration was obtained.

‧ methyl ethyl ketone: 7.393% by mass

‧ urethane acrylate UV/EB hardening resin ("AUP-707" manufactured by Tokushiki Co., Ltd.; bifunctional, solid content 20% by mass): 90.695 mass%

‧Organic Particles No.1 (Art-pearl (registered trademark) P800T, manufactured by Kokusai Industrial Co., Ltd.): 0.955 mass%

‧Photopolymerization initiator (Irgacure (registered trademark) 184, manufactured by BASF Japan): 0.907% by mass

‧ leveling agent (polyoxygenated surfactant ("DC57" manufactured by Dow Corning Toray Co., Ltd.): 0.050% by mass

The surface roughness (SMD) and static friction index of the surface decorative layer in the obtained surface-added film are shown in Table 1.

(Comparative Example 2)

In the same manner as in Example 1, except that the coating liquid was prepared in the same manner as in the first embodiment, a film for surface decoration was obtained.

‧ methyl ethyl ketone: 13.081% by mass

‧ urethane acrylate UV/EB hardening resin ("AUP-707" manufactured by Tokushiki Co., Ltd.; bifunctional, solid content 20% by mass): 84.252 quality%

‧Inorganic particulates No.1 ("sylysia 446" manufactured by Fuji Silysia Chemical Co., Ltd.: 1.747% by mass

‧Photopolymerization initiator (Irgacure (registered trademark) 184, manufactured by BASF Japan): 0.843% by mass

‧ leveling agent (polyoxygenated surfactant ("DC57" manufactured by Dow Corning Toray Co., Ltd.): 0.050% by mass

The surface roughness (SMD) and static friction index of the surface decorative layer in the obtained surface-added film are shown in Table 1.

(Comparative Example 3)

In the same manner as in Example 1, except that the coating liquid was prepared in the same manner as in the first embodiment, a film for surface decoration was obtained.

‧ urethane acrylate UV/EB hardening resin ("AUP-707" manufactured by Tokushiki Co., Ltd.; bifunctional, solid content 20% by mass): 98.961% by mass

‧Photopolymerization initiator (Irgacure (registered trademark) 184, manufactured by BASF Japan): 0.990% by mass

‧ leveling agent (polyoxygenated surfactant ("DC57" manufactured by Dow Corning Toray Co., Ltd.): 0.050% by mass

The surface roughness (SMD) and static friction index of the surface decorative layer in the obtained surface-added film are shown in Table 1.

The touch feeling (adhesiveness, slippery feeling, rough feeling, moist feeling) of the film for surface decoration obtained by the above Examples and Comparative Examples was judged by the method of paired comparison of 10 commentators. To evaluate. The evaluation results are shown in Table 1.

Two kinds of samples (film for surface decoration) were placed in a constant temperature and humidity chamber controlled at 25 ° C and 60% RH, and the left and right palms of the commentator were placed on each sample for 1 minute. Next, the adhesive feeling, the slipperiness, the rough feeling after 1 minute, and the moist feeling which was evaluated as a total were judged. Specifically, it is determined whether the sample on the left and right sides is less sticky, whether there is a slippery feeling, whether there is no roughness, and whether it is further evaluated as a wetness. After the comparison and determination of the whole sample combination, according to Thurston's pairing comparison method, The adhesive feeling, slippery feeling, rough feeling, and moist feeling were standardized by -2 to +2 points, and converted into a score.

In addition, the higher the "adhesive" score, the less likely it is to feel sticky. The higher the "slippery" score, the more slippery the feeling is. The higher the "roughness" score, the less the rough feel (in other words, the smoothness of the sense). ). The higher the number of points is the feeling of being close to moist. However, since the individual can not express the moist feeling alone, the "wet feeling" is also evaluated as a total evaluation. The higher the "wet feeling" point, the higher the feeling of moistening. In particular, as long as the number of points is positive, it can be said that it feels "wet".

As can be seen from Table 1, the surface decorative layer contains both organic fine particles and inorganic fine particles, and the surface roughness SMD is in the range of 0.1 μm or more and less than 0.4 μm, and the static friction index is in the range of 0.5 to 3.0. In any of the films for surface finishing of the 11th, since the adhesiveness, the slippery feeling, and the rough feeling are all positive scores, the moist feeling of the total evaluation is also a positive score, so that an excellent moist feeling can be obtained.

On the other hand, in Comparative Examples 1 to 3 in which the surface roughness SMD was too small as compared with the range of the present invention, it was found that the adhesiveness was poor, and the wet feeling of the total evaluation of the tactile sensation could not be obtained.

[Industrial availability]

The film for surface decoration of the present invention can be suitably applied to household appliances, automobile signage or building materials, portable telephones, stereos, portable players/recorders, IC recorders, and the like. Car navigation, PDA and other portable devices or notebook PCs.

Claims (8)

A surface-applied film which is provided with a surface-applied film which is excellent in moist feeling of a surface decorative layer on a base film, and which is characterized in that the surface decorative layer contains a cured product of a curable resin compound and an organic system. The surface roughness layer SMD measured by a KES surface tester was 0.10 μm or more and less than 0.40 μm. The film for surface finishing of claim 1, wherein the surface decorative layer has a static friction index of 0.5 to 3.0 as measured by a KES surface friction tester using a 矽 sensor friction element. The film for surface finishing of claim 1 or 2, wherein the organic fine particles have a glass transition point (Tg) of -10 ° C or less. The surface-applied film according to any one of claims 1 to 3, wherein the organic fine particles have a volume average particle diameter of from 1 to 30 μm. The film for surface finishing according to any one of claims 1 to 4, wherein the organic fine particles are contained in an amount of 1 to 20 parts by mass based on 100 parts by mass of the cured product of the curable resin compound. The surface-applied film according to any one of claims 1 to 5, wherein the inorganic fine particles have a volume average particle diameter of from 1 to 50 μm. The film for surface finishing according to any one of claims 1 to 6, wherein the inorganic fine particles are contained in an amount of 1 to 30 parts by mass based on 100 parts by mass of the cured product of the curable resin compound. The surface-applied film according to any one of claims 1 to 7, wherein a thickness of the cured product of the curable resin compound in the surface decorative layer is 80% or less of the particle diameter of the organic fine particles.