JPH1016149A - Stain-resistant film, its manufacturing method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stain-resistant film in which the decorative properties are improved by the solid demonstration of suggested embosses inside and no lowering of stain-resistant function is generated on its surface in the stain- resistant film formed by compounding a surface film layer composed of a fluorine resin film with a base film layer composed of a polyvinyl chloride resin film. SOLUTION: A stain-resistant film is provided with a base film layer 1 composed of a polyvinyl chloride resin film having a metallic brilliant pattern at least on a part and a surface film layer 2 composed of a fluororesin film bonded on the upper face side of the base film layer 1, and an emboss recessed and face 1A is formed on the back of the base film layer 1, and the surface of the surface film layer 2 is formed into a smooth surface of a frosted surface 2A formed of recesses and projections finer than those of the embossment recessed and surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a plastic surface decorative material at a place where dirt is a problem, such as a kitchen door, a vanity stand, a bathroom, a toilet booth, an elevator interior material, or a vehicle interior material such as a train. The present invention relates to a stain-resistant film suitable for use as a film, a method for producing the film, and an apparatus for producing the film.

[0002]

2. Description of the Related Art As a stain-resistant film as described above,
A film in which a surface film layer made of a fluorine-based resin film and a base film layer made of a polyvinyl chloride-based resin film are combined is used, and a film in which an embossed uneven surface is formed on the surface film layer is also used. ing.

[0003]

A film using a fluorine-based resin on the surface is excellent in stain resistance, but has a problem in terms of cosmetics. In the case where the embossed uneven surface is formed on the surface, there is a problem that a contaminant enters the embossed unevenness, which makes cleaning difficult and reduces the stain resistance.

The present invention has been made in view of the above points, and is a stain-resistant film in which a surface film layer made of a fluororesin film and a base film layer made of a polyvinyl chloride resin film are combined. In, the cosmetics are improved by a three-dimensional expression that makes you feel embossed inside,
Moreover, it is an object of the present invention to provide a stain-resistant film whose surface stain-resistant function does not deteriorate, and a method and an apparatus for manufacturing the same.

[0005]

Next, means for solving the above-mentioned problems will be described with reference to the embodiments shown in the drawings.
That is, the invention of claim 1 of the present application relates to a stain-resistant film, and as shown in FIG. 1 or FIG. 2, a base film made of a polyvinyl chloride resin film having a metallic glitter pattern at least in part. And a surface film layer 2 made of a fluororesin film adhered to the upper surface side of the base film layer 1, and an embossed uneven surface 1A is formed on the back surface of the base film layer 1, The surface of the surface film layer 2 is characterized in that it is a flat surface or a matte surface 2A made of finer irregularities than the embossed irregularities.

[0008] As described in claim 2, the base film layer 1 is a film printed with an ink in which a metallic glitter material is blended on the surface of a polyvinyl chloride resin film, a film in which the metallic glitter material is kneaded, Alternatively, it is formed using a film in which a metallic glitter pattern is printed on the surface of a film in which a metallic glitter material is kneaded.

As a third aspect of the present invention, the fluorine-based resin constituting the surface film layer 2 is an ethylene-tetrafluoroethylene copolymer, a vinylidene fluoride resin, or a tetrafluoroethylene-perfluoroaryl vinyl ether copolymer. It is characterized by being. The surface film layer 2 is transparent, colored transparent, or translucent.

The invention of claim 4 relates to a stain-resistant film. As shown in FIG. 3, a transparent, translucent or colored transparent polychlorinated film is provided between the base film layer 1 and the surface film layer 2. It is characterized in that an intermediate layer 3 made of a vinyl resin film is formed. The intermediate layer may be formed as a single layer or a plurality of layers such as two layers. Middle layer 3
Can be formed by kneading a brilliant material similar to that of the base film layer 1 or by printing a film.

In the inside of the stain resistant film, a metallic glittering pattern is seen through the unevenness of the backside embossed surface along the unevenness, and a part of the metallic glittering pattern is seen. When there is a gap or at least a part of the pattern is transparent, the embossed uneven surface on the back surface can be seen through the gap.

The invention according to claim 5 relates to a method for producing a stain-resistant film, comprising a base film layer made of a polyvinyl chloride resin film and a fluororesin film adhered to the upper surface side of the base film layer. As shown in FIG. 4, in a method for manufacturing a stain-resistant film having a surface film layer comprising: an embossing roll 4 and a rubber roll 5 receiving the embossing roll; Has a hardness of 70 to 90 degrees, preferably 70 to 80 degrees, and at least a surface side layer of the rubbery portion has a length of 320 mesh to 800 mesh, preferably 320 mesh to 500 mesh.
Sand-like particles of the mesh are mixed, and the base film layer and the surface film layer are joined or adhered to each other, and heated and passed between the embossing roll and the rubber roll to form the base film layer. It is characterized in that an embossed uneven surface is formed on the back surface and at the same time, a matte surface made of finer unevenness than the embossed uneven surface is formed on the surface of the front film layer. The hardness of the rubber portion of the rubber roll can be measured by a hardness test based on a spring-type hardness test according to JIS (JIS K6301 5.3).

The invention according to claim 6 relates to an apparatus for producing a stain-resistant film. As shown in FIG. 4, a base film layer made of a polyvinyl chloride resin film and an upper surface side of the base film layer are bonded to each other. And a surface film layer comprising a fluororesin film to be produced, wherein an embossing roll 4 for forming an embossed uneven surface on the back surface of the base film layer and the embossing roll are received. A rubber roll 5 for forming a matte surface having finer irregularities than the embossed irregularities on the surface of the surface film layer;
Means that the hardness of the rubbery part is 70 to 90 degrees, preferably 70 to 8
0 degree, and at least 320
Mesh ~ 800 mesh, preferably 320 mesh ~
It is characterized by having a structure in which sandy particles of 500 mesh are mixed.

[0012] According to the above-mentioned stain-resistant film, the surface is smoothed or matte, and through the surface film layer or the intermediate layer, into the inside thereof, under the influence of the embossed uneven surface on the back surface, along the intermediate surface. The metallic brilliant printed pattern becomes uneven and looks embossed, and the reflected light from the metallic brilliant pattern is slightly irregularly reflected by the matte surface of the surface, so that a deep aesthetic effect can be obtained. Thus, a more subtle cosmetic effect can be obtained by making the film feel embossed. In addition, since the front surface is hardly affected by unevenness due to the embossed uneven surface on the back surface and is a smooth surface or a matte surface, it is easy to physically wipe dirt, and has a good contamination resistance function. .

Further, according to the above-described production method and apparatus, the gloss or roughness of the surface of the stain-resistant film can be adjusted by the rubber roll 5. In order to obtain a rough surface, a maximum of 320 mesh may be used, and in order to obtain a dense surface, a minimum of 800 mesh may be used. If the hardness of the rubber roll 5 is low, irregularities along the irregularities of the back surface emboss appear on the front surface side of the film, and the contamination resistance function decreases.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on the illustrated embodiments. FIG. 1 is a sectional view showing a first embodiment of a stain-resistant film. The contaminating film is provided on at least a part of the surface thereof with an adhesive on the upper surface side of a base film layer 1 made of a hard polyvinyl chloride-based resin film which has been printed 6 with a printing ink mixed with a metallic glitter pigment. Is a structure in which a surface film layer 2 made of a transparent, colored transparent or translucent fluororesin film is adhered by dry lamination via an adhesive layer 7 made of a resin. Thus, an embossed uneven surface 1A is formed on the back surface of the base film layer 1, and the surface of the front film layer 2 is a smooth surface or a rough surface having finer unevenness than the embossed uneven surface, that is, a matte surface 2A, From the side of the surface film layer 2, a metallic glitter print 6 is formed.
It is made possible to see through in an embossed shape under the influence of the embossed uneven surface 1A. There is a gap in at least a part of the print 6,
Alternatively, if the printing is transparent, the printing 6
The embossed uneven surface 1 </ b> A is seen through from between. As the fluorine-based resin film used as the surface film layer 2, it is desirable to use a thin film of ethylene-tetrafluoroethylene copolymer having a thickness of 12 to 25 μm from the viewpoint of stain resistance.

FIG. 4 shows an apparatus for manufacturing a contaminated film according to the first embodiment, and the manufacturing method and the apparatus will be described. This apparatus comprises an embossing roll 4 for forming an embossed uneven surface on the back surface of a base film layer of a stain-resistant film, and the surface of the surface film layer receiving the embossed roll has finer unevenness than the embossed uneven surface. A rubber roll 5 for forming a matte surface. The rubbery roll 5 has a rubbery part having a hardness of 70 to 90 degrees, preferably 70 to 80 degrees, and at least a surface of the rubbery part has 320 to 800 mesh, preferably 320 to 500 mesh sandy particles. Are mixed. The mixing amount of the sand-like particles is 40 to 70%.
Preferably, it is 50 to 60%. The hardness of the rubber roll is set so that the influence of the back emboss by the embossing roll does not appear on the surface of the stain-resistant film, and the surface roughness of the rubber roll is such that the surface of the stain-resistant film is smooth or rough. It is appropriately selected so as to be smaller than the degree of unevenness of the back emboss.

Next, a method for manufacturing a contaminating film according to the first embodiment will be described. A hard polyvinyl chloride resin film and a fluororesin film having the above-described printing 6 on the surface are bonded in advance by dry lamination. This is passed through the heated state between the embossing roll 4 and the rubber roll 5 using the apparatus shown in FIG. 4 to form an embossed uneven surface on the back surface. The rough surface is adjusted by selecting the rubber roll 5 to be used within the above range.

FIG. 2 is a sectional view showing a second embodiment of the stain-resistant film. This contaminating film comprises a hard polyvinyl chloride-based resin film on which printing 6 serving as the base film layer has been applied and a composite film of a fuso-based resin layer and an acrylic resin layer serving as the surface film layer, as shown in FIG. While passing between the embossing roll 4 and the rubber roll 5 by heating, they are bonded by thermal lamination, and at the same time, an embossed uneven surface is formed on the back surface and a rough surface is formed on the surface.
The contaminating film according to the second embodiment is substantially the same as the first embodiment except that the adhesive layer 7 'is a layer formed by thermal lamination. Further, as the fluorinated resin film to be the surface film layer in this embodiment, it is desirable to use a composite film composed of a vinylidene fluoride resin layer and an acrylic resin layer from the viewpoints of stain resistance and heat resistance during production. .

FIG. 3 is a cross-sectional view showing a third embodiment of a stain-resistant film. In the first or second embodiment, this contaminating film is formed between a transparent, translucent or colored transparent polyvinyl chloride resin film between the base film layer 1 and the surface film layer 2. The intermediate layer 3 is formed. This intermediate layer may be formed as a single layer or a plurality of layers.

In the stain-resistant film according to the first or second embodiment, the thickness of the surface film layer is particularly limited when an expensive ethylene-tetrafluoroethylene copolymer is used (first embodiment). Form), which is as thin as 12 to 25 μm and lacks depth, but in the third embodiment, a deep intermediate embossing effect can be obtained by the presence of the intermediate layer 3.

In each of the above embodiments, the surface of the stain-resistant film may be a smooth surface. In order to obtain a rough surface or a matte surface, for example, a film obtained by pressing a rough emboss on PET of 25 μm is used. May be.

[0021]

【Example】

Example A (corresponding to the first embodiment) 180μm, close to thick paint finish on poplar straight grain
RVC hard film (10YR7 / 12 gold), color change with Helio wood engraving version: medium: pearl gold: black: red: yellow = 65: 31: 0.
2: 2: 1.8 is illuminated by trees. 2. Next, using poplar bark version and conduit version, first, medium: black: red: yellow = 91: 1:
2: 6 and medium: black: red: yellow = 8
Print at 7: 4: 3: 6. 3. Next, the above-mentioned printed product and ethylene-tetrafluoroethylene copolymer (ETFE) 1
A film having a thickness of 2 μm is attached with a polyester adhesive. 4. The laminated film is completely cured by aging at 50 ° C. for 3 days, and then milled into a spiral line (depth 1).
The film printed by embossing (00 .mu.mmax) is embossed from the back side. At this time, the rubber roll had sandy particles of 500 mesh mixed therein, and the surface of the product had a gloss of about 5 minutes.

Example B (corresponding to the second embodiment) The same printing as in Example A is performed using a film having a semi-rigidity of 100 μm. 2. Next, a 50μ vinylidene fluoride resin (PVDF)
And a composite film made of acrylic resin is thermally laminated. The emboss is embossed with a hair line from the back of the print film.

[0023]

As described above, according to the contamination-resistant film of the present invention, the surface film layer is formed of a fluorine-based resin, and the surface is formed as a smooth surface or a shallow surface with irregularities and a matte surface. Excellent in terms of pollution,
In addition, embossing is felt inside, and it is deep and excellent in terms of cosmetic properties, and has an excellent effect when used as a plastic surface decorative material in places where dirt is a problem.

Further, as a manufacturing method and an apparatus, an embossing roll 4 and a rubber roll 5 receiving the embossing roll are used, and the rubber roll has a rubber portion having a hardness of 70 to 70.
It is 90 degrees, preferably 70 to 80 degrees, and sandy particles of 320 to 800 mesh, preferably 320 to 500 mesh are mixed in at least the surface side layer of the rubbery part. The material film layer and the surface film layer are joined or bonded to each other, and heated and passed between the embossing roll and the rubbery roll, thereby forming an embossed uneven surface on the back surface of the base film layer and simultaneously forming the surface film layer. Since a matte surface made of finer irregularities than the embossed uneven surface is formed on the surface of the surface, it is possible to perform a process of making the inside feel embossed satisfactorily, and the state of the matte surface or rough surface of the surface is Easy to adjust.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a contamination-resistant film according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a contamination-resistant film according to a second embodiment of the present invention.

FIG. 3 is a cross-sectional view of a contamination-resistant film according to a third embodiment of the present invention.

FIG. 4 is a side view showing the manufacturing apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base film layer, 1A embossed uneven surface 2 Surface film layer, 2A matte surface 3 Intermediate layer 4 Emboss roll 5 Rubber roll 6 Printing 7, 7 'Adhesive layer

Claims (6)

[Claims] 1. A base film comprising a polyvinyl chloride resin film having at least a part of a metallic glitter pattern, and a surface film comprising a fluororesin film adhered to an upper surface of the base film layer. An embossed uneven surface is formed on the back surface of the base film layer, and the surface of the surface film layer is a flat surface or a matte surface made of finer unevenness than the embossed uneven surface. Features a stain-resistant film. 2. The method according to claim 1, wherein the base film layer comprises a film printed with an ink obtained by mixing a metallic glitter material on the surface of a polyvinyl chloride resin film, a film in which the metallic glitter material is kneaded, or a metallic glitter material. The stain-resistant film according to claim 1, wherein the film is formed by using a film having a metallic glitter pattern printed on the surface of the kneaded film. 3. The method according to claim 1, wherein the fluorine-based resin is an ethylene-tetrafluoroethylene copolymer, a vinylidene fluoride resin, or a tetrafluoroethylene-perfluoroaryl vinyl ether copolymer. The described stain-resistant film. 4. An intermediate layer made of a transparent, translucent or colored transparent polyvinyl chloride resin film is formed between said base film layer and said surface film layer. The stain-resistant film according to 1, 2, or 3. 5. A method for producing a stain-resistant film comprising a base film layer made of a polyvinyl chloride resin film and a surface film layer made of a fluororesin film adhered to the upper surface of the base film layer. In the above, an embossing roll and a rubber roll receiving the embossing roll are used, and the rubber roll has a rubber portion having a hardness of 70 to 90.
Is preferably 70 to 80 degrees, and sandy particles of 320 to 800 mesh, preferably 320 to 500 mesh are mixed on at least the surface side of the rubbery portion. Contamination resistance characterized in that an embossed uneven surface is formed by the embossing roll, and at the same time, a matte surface composed of finer unevenness than the embossed uneven surface is formed on the surface of the surface film layer by the rubbery roll. Film manufacturing method. 6. An apparatus for producing a stain-resistant film, comprising: a base film layer made of a polyvinyl chloride resin film; and a surface film layer made of a fluorine resin film adhered on the upper surface side of the base film layer. Receiving an embossing roll for forming an embossed uneven surface on the back surface of the base film layer and receiving the embossed roll on the surface of the surface film layer to form a matte surface made of finer unevenness than the embossed uneven surface on the surface of the surface film layer. Rubber roll, wherein the rubber roll has a rubber portion hardness of 70 to
90 degrees, preferably 70 to 80 degrees, and a structure in which sand-like particles of 320 to 800 mesh, preferably 320 to 500 mesh are mixed at least on the surface side of the rubbery portion. Equipment for producing stain-resistant films.