JP2010184361A - Color laminated film for car - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a color laminated film for cars, which prevents an adverse influence on the film by a solvent, so that the color laminated film has beautiful exterior, and which has excellent flexibility and formability. <P>SOLUTION: The color laminated film 10A for cars, which is stuck to the surface of a resin molding M, is composed of: a color coating film layer 20 formed of a kneaded material obtained by kneading an acrylic resin, a urethane resin or the mixture thereof with a pigment, a dye, a colorant or the mixture thereof; and an anchor coat layer 30 which has a primer layer 60 or an adhesive layer 65 on the back surface thereof and is formed on the undersurface of the color coating film layer 20 to enhance adhesiveness of the color coating film layer 20 to the resin molding M and protectiveness of the resin molding M. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a colored laminated film for automobiles adhered to the surface of a resin molding such as an exterior part of an automobile.

  In general, from the viewpoint of weather resistance, durability, decorativeness, etc., an appropriate laminated film is attached to the resin molded body such as an exterior part of an automobile, in particular, from the viewpoint of the surface beautification of the part, A colored laminated film for automobiles including a colored layer for expressing a desired color on the surface of the component is used.

  As such a colored laminated film for automobiles, for example, a base film layer in which pigments of various colors are kneaded in a synthetic resin material and adhered to a resin molded body, and a decorative PET film laminated on the upper surface side thereof A layer in which a colored layer is formed through an adhesive layer between layers is known (see, for example, Patent Document 1). In this colored laminated film for automobiles, the base film layer and the decorative PET film layer can be firmly bonded and a deep color can be expressed.

  By the way, in the conventional colored laminated film for automobiles, the solvent may be eluted from the adhesive layer for joining the base film layer and the decorative PET film layer. If the solvent eluted from the adhesive layer penetrates into the colored layer, it may adversely affect the expression of the desired color and may deteriorate the appearance as a film for automobiles. Furthermore, when the solvent eluted from the adhesive layer permeates the colored layer, there is a problem that the adhesion between the decorative PET film layer on the surface and the base film layer is hindered.

  The decorative PET film layer provided on the surface of the colored laminated film for automobiles is formed with a thickness that can sufficiently ensure performance such as durability while minimizing the influence on flexibility and moldability. When the resin molded body is integrally formed with an appropriate molding method such as injection molding, extrusion molding, or the like, there may be a problem that a portion corresponding to a corner of the resin molded body may be wrinkled. Therefore, in order to ensure flexibility and moldability, it is possible to form a fluorine film layer instead of the decorative PET film layer. In such a case, the coloring layer is dull due to the cloudiness peculiar to the fluorine film. That was the problem.

JP 2006-224324 A

  The present invention has been made in view of the foregoing points, and provides a colored laminated film for automobiles that has a more beautiful exterior by preventing the adverse effects of the solvent on the film, and that is also excellent in flexibility and moldability. It is.

  That is, the invention of claim 1 is a colored laminated film for automobiles to be stuck to the surface of a resin molded body, and is an acrylic resin or a urethane resin alone or a mixture thereof, a pigment, a dye, or a colorant alone. Or a colored coating layer formed by kneading a mixture of these, and on the lower surface side of the colored coating layer, a primer layer or an adhesive layer is provided on the back surface, and the adhesion between the colored coating layer and the resin molded body The present invention relates to a colored laminated film for automobiles, in which an anchor coat layer is formed to improve the property and the protective property.

  The invention of claim 2 is a colored laminated film for automobiles to be adhered to the surface of a resin molded body, and includes an acrylic resin or a urethane resin alone or a mixture thereof, a pigment, a dye, a colorant alone or these A base film layer adhered to the surface of the resin molded body and a colored coating layer bonded to the upper surface thereof through an adhesive layer made of a dry laminate, and the colored coating layer An anchor coat layer for improving adhesion and protection between the colored coating layer and the adhesive layer is formed on the lower surface of the colored laminated film for automobiles.

  The invention according to claim 3 relates to the colored laminated film for automobile according to claim 2, wherein a primer layer or an adhesive layer is provided on the back surface of the base film layer.

  In the invention of claim 4, the anchor coat layer is made of a polyester resin, a melamine resin, a urea resin, a urea-melamine resin, a urethane resin, an acrylic resin, a nitrocellulose resin alone or a mixture thereof. The thickness is 0.01 to 5 µm. The colored laminated film for automobiles according to any one of claims 1 to 3.

  Invention of Claim 5 concerns on the colored laminated film for motor vehicles of any one of Claim 1 thru | or 4 which has a protective film layer on the said colored coating-film layer upper surface.

  A sixth aspect of the present invention is directed to an automobile according to any one of the first to fourth aspects, wherein a transparent resin coating layer made of an acrylic resin or a urethane resin is formed on the upper surface side of the colored coating layer. It relates to a colored laminated film.

  The invention according to claim 7 relates to the colored laminated film for automobile according to claim 6, wherein the transparent resin coating layer has a thickness of 3 to 100 μm.

  Invention of Claim 8 concerns on the colored laminated | multilayer film for motor vehicles of Claim 6 or 7 which has a protective film layer on the said transparent resin coating-film layer upper surface.

  According to the colored laminated film for automobiles of the invention of claim 1, the colored laminated film for automobiles adhered to the surface of the resin molded body, which is a pigment in an acrylic resin or urethane resin alone or in a mixture thereof A colored coating layer formed by kneading a dye or a colorant alone or a mixture thereof, and having a primer layer or an adhesive layer on the back side of the colored coating layer and the colored coating layer Since an anchor coat layer is formed to increase adhesion and protection with the resin molded body, sufficient flexibility and moldability can be obtained, and the penetration of the solvent can be effectively prevented. Thus, the adverse effect on the film can be suppressed, and a more beautiful exterior can be formed.

  According to the colored laminated film for automobiles of the invention of claim 2, it is a colored laminated film for automobiles stuck on the surface of a resin molded body, and is a pigment in an acrylic resin or a urethane resin alone or a mixture thereof. A colored coating film that is kneaded with a dye, a colorant, or a mixture thereof, and is bonded to the upper surface of the resin molded body via an adhesive layer made of a dry laminate and a base film layer that is adhered to the surface of the resin molded body Since an anchor coat layer for enhancing adhesion and protection between the colored coating layer and the adhesive layer is formed on the lower surface side of the colored coating layer. In addition to being able to obtain moldability, it is possible to effectively prevent the permeation of the solvent to suppress the adverse effect on the film and to make a more beautiful exterior.

  According to the invention of claim 3, since the primer layer or the pressure-sensitive adhesive layer is applied to the back surface of the base film layer in claim 2, the adhesion between the base film layer and the resin molded body can be improved. .

  According to a fourth aspect of the present invention, in the first to third aspects, the anchor coat layer is made of polyester resin, melamine resin, urea resin, urea-melamine resin, urethane resin, acrylic resin, nitrocellulose. Since it is made of a single resin or a mixture of these and has a thickness of 0.01 to 5 μm, it is possible to obtain sufficient adhesion by the anchor coat layer and to obtain an economically colored laminated film for automobiles. be able to.

  According to invention of Claim 5, in Claim 1 thru | or 4, since it has a protective film layer on the said colored coating-film layer, the bonding process of the said colored laminated film for motor vehicles, and this colored laminated film for cars are stuck The processing of the processed material, or transportation and storage can prevent the colored laminated film for automobiles from being damaged.

  According to the invention of claim 6, in claims 1 to 4, since the transparent resin coating layer made of acrylic resin or urethane resin is formed on the upper surface side of the colored coating layer, the weather resistance, etc. Sufficient performance can be secured.

  According to the invention of claim 7, since the thickness of the transparent resin coating layer is 3 to 100 μm in claim 6, it is possible to obtain sufficient performance such as weather resistance and economically advantageous. A colored laminated film for automobiles can be obtained.

  According to invention of Claim 8, in Claim 6 or 7, since it has a protective film layer on the said transparent resin coating film layer, the bonding process of the said colored laminated film for motor vehicles, and this colored laminated film for motor vehicles are affixed. The colored laminated film for automobiles can be prevented from being damaged during the processing step of the worn material, transportation or storage.

It is a schematic sectional drawing of the colored laminated | multilayer film for motor vehicles based on the 1st Example of this invention. It is a schematic sectional drawing of the colored laminated | multilayer film for motor vehicles based on a 2nd Example. It is a schematic sectional drawing of the colored laminated | multilayer film for motor vehicles based on a 3rd Example. It is a schematic sectional drawing of the colored laminated | multilayer film for motor vehicles which concerns on 4th Example. It is a schematic sectional drawing of the colored laminated | multilayer film for motor vehicles which concerns on 5th Example. It is a schematic sectional drawing of the coloring laminated film for motor vehicles concerning a 6th Example.

  As shown in FIG. 1, a colored laminated film 10A for an automobile according to the first embodiment of the present invention is attached to the surface of a resin molded body M, includes a colored coating layer 20, and includes a colored coating film. An anchor coat layer 30 is formed on the lower surface side of the film layer 20. The resin molded body M of an Example consists of exterior parts for motor vehicles, such as a motor vehicle molding formed with resin, such as PC, ABS, PVC, PP, etc., for example. In addition, the code | symbol 55 in a figure represents a well-known carrier film.

  The colored coating layer 20 is formed by kneading an acrylic resin or a urethane resin alone or a mixture thereof with a pigment, a dye, or a colorant alone or a mixture thereof. The colored coating layer 20 is formed by a known method such as a gravure roll coating method. The thickness is preferably 3 to 100 μm in order to express the target color and ensure weather resistance. In the embodiment, the carrier film 55 is formed by coating on the back surface of the carrier film 55 by a gravure roll coating method. When the thickness of the colored coating layer 20 exceeds 100 μm, there is a problem from the viewpoints of appearance, manufacturing and cost. On the other hand, when the thickness is less than 3 μm, it is difficult to ensure sufficient performance such as weather resistance. As the required weather resistance, it is preferable that the ΔE of the color difference by the sunshine weather meter 2000 hour treatment in the colored laminated film 10A for automobiles alone is at least 3 or less. Moreover, you may add a well-known ultraviolet absorber to the colored coating film layer 20 in order to improve a weather resistance.

  The anchor coat layer 30 is formed between the colored coating layer 20 and the resin molded body M to enhance the adhesion and protection between them, and the back surface thereof has adhesiveness with the resin molded body M. In order to improve, the primer layer 60 is applied by a known primer treatment. The anchor coat layer 30 is composed of a polyester resin, a melamine resin, a urea resin, a urea-melamine resin, a urethane resin, an acrylic resin, a nitrocellulose resin alone or a mixture thereof as a main component. . Thus, since the anchor coat layer 30 is formed on the lower surface side of the colored coating layer 20, the solvent of the primer layer 60 is prevented from eluting and penetrating into the colored coating layer 20; It is possible to prevent adverse effects on color expression. Note that an adhesive layer 65 can be applied to the back surface of the anchor coat layer 30 by a known adhesive treatment instead of the primer layer 60.

  The anchor coat layer 30 is formed by applying a paint obtained by dissolving the above resin in an organic solvent to the upper surface of the resin molded body M using a normal printing method such as a gravure printing method, a screen printing method, an offset printing method, and the like. Formed. The thickness of the anchor coat layer 30 is not particularly limited as long as sufficient adhesion between the colored coating layer 20 and the resin molded body M can be obtained, and is preferably 0.01 to 5 μm, for example. When the thickness is less than 0.01 μm, the effect of adhesion is small, and when the thickness exceeds 5 μm, sufficient adhesion cannot be obtained, which is disadvantageous economically.

  In the colored laminated film 10A for automobiles, it is preferably recommended to have the protective film layer 50 on the upper surface of the colored coating layer 20. The protective film layer 50 includes a step of bonding the film to the resin molded body M to which the colored laminated film 10A for automobile is attached or coated, and a processing step of the material to which the film is attached, or transportation, During storage, the film is prevented from being damaged. In the embodiment, the carrier film 55 having the colored coating layer 20 applied on the back surface is used as the protective film layer 50 as it is. Moreover, the thickness of the protective film layer 50 is 9-100 micrometers, More preferably, it is 12-75 micrometers. When the thickness is less than 9 μm, the protection performance cannot be satisfied, and when the thickness exceeds 100 μm, there is a problem from the viewpoint of price. The protective film layer 50 is a protective part and is finally peeled off.

  In addition, in the colored laminated film 10A for an automobile of the example, first, the colored coating layer 20 is formed on the back surface of the carrier film 55, and thereafter each layer is formed in the order of the anchor coat layer 30 and the primer layer 60.

  The colored laminated film 10B for automobiles according to the second embodiment shown in FIG. 2 is joined via a base film layer 11 and an adhesive layer 15 on which the colored coating layer 20 is adhered to the surface of the resin molded body M. In the following description of each embodiment, the same reference numerals as those in the first embodiment represent the same configuration, and the description thereof is omitted.

  The material and thickness of the base film layer 11 are selected depending on the material of the resin molded body M. For example, when the colored laminated film 10B for automobiles is integrally formed with an extruded product by extrusion molding of a vinyl chloride resin, a vinyl chloride resin film is preferably used as the base film layer 11. As a general material, for example, a resin including a polypropylene resin and a copolymer component is used among polyolefin resins, and an ABS resin or the like can also be used as a polymer alloy resin. Since the required performance requires heat resistance, water resistance, etc., a heat resistance stabilizer and the like may be included. In addition, an appropriate coloring pigment or the like may be kneaded or a known ultraviolet absorber may be added to improve weather resistance.

  The thickness of the base film layer 11 is preferably 30 to 500 μm, particularly 50 to 300 μm. If the thickness is less than 30 μm, the adhesion performance cannot be satisfied, and if it exceeds 500 μm, it is disadvantageous from the viewpoint of production and cost.

  The adhesive layer 15 adheres the base film layer 11 and the colored coating film layer 20 and is formed by coating the upper surface of the base film layer 11 with a known dry laminator. As the adhesive layer 15, a two-component curable polyurethane adhesive or the like is preferably used. Moreover, the thickness of the adhesive layer 15 after apply | coating and drying is 1-10 micrometers, More preferably, it is 2-7 micrometers. If the thickness is less than 1 μm, satisfactory adhesive strength cannot be obtained, and if it exceeds 10 μm, it is disadvantageous from the viewpoint of manufacturing and cost.

  In the colored laminated film 10 </ b> B for automobiles, an anchor coat layer 30 is formed on the lower surface side of the colored coating film layer 20 in order to improve adhesion and protection with the adhesive layer 15. Thereby, since the solvent of the adhesive layer 15 is eluted and is prevented from penetrating into the colored coating layer 20, it is possible to prevent an adverse effect on the color expression due to the solvent.

  Moreover, you may give the primer layer 60 to the back surface of the base film layer 11 by a well-known primer process like the colored laminated film 10C for motor vehicles of the 3rd Example shown in FIG. Thereby, the adhesiveness of the base film layer 11 and the resin molding M can be improved. In addition, it is also possible to give the adhesion layer 65 to the back surface of the base film layer 11 by a known adhesion treatment instead of the primer layer 60.

  The colored laminated film 10D for automobiles according to the fourth embodiment shown in FIG. 4 includes a colored coating layer 20 and an anchor coat layer 30 formed on the lower surface side of the colored coating layer 20, and the colored coating layer 20 A transparent resin coating layer 40 made of an acrylic resin or a urethane resin is formed on the upper surface side.

  The transparent resin coating layer 40 is made of an acrylic resin or a urethane resin excellent in transparency and weather resistance, and any one of these or a mixture thereof can be used. Examples of acrylic resins include acrylic acid or methacrylic acid, or polymers of alkyl esters such as methyl ester and ethyl ester thereof, alkenylbenzenes copolymerizable with these monomers, α Copolymers of β-unsaturated monomeric monomers with comonomers are preferably used. As a urethane-type resin, the composition which has polyisocyanate, a polyol, etc. (active hydrogen compound) as a main component is used suitably.

  The transparent resin coating layer 40 is formed by a known method such as a gravure roll coating method, and the thickness is preferably 3 to 100 μm, more preferably 10 to 25 μm. In the embodiment, an acrylic resin or a urethane resin is applied to the back surface of the carrier film 55 by a gravure roll coating method. When the thickness of the transparent resin coating layer 40 is less than 3 μm, it is difficult to sufficiently ensure the performance such as weather resistance, and when it exceeds 100 μm, there is a problem from the viewpoint of price. In addition, as the required weather resistance, it is preferable that ΔE of the color difference by the sunshine weather meter 2000 hour treatment in the colored laminated film for automobile 10A alone is at least 3 or less. In order to improve the weather resistance, a transparent resin coating is used. A known ultraviolet absorber may be added to the film layer 40.

  Further, the colored coating layer 20 is formed by being applied to the lower surface of the transparent resin coating layer 30 by a known method such as a gravure roll coating method, and a desired color is expressed through the transparent resin coating layer 30. The The colored coating film layer 20 has a function of joining the transparent resin coating film layer 30 and the resin molded body M, and the thickness is preferably 1 to 30 μm. When the thickness exceeds 30 μm, there is a problem from the viewpoints of appearance, manufacturing and cost. On the other hand, when the thickness is less than 1 μm, there is a problem that it is difficult to express the target color. Moreover, you may add a well-known ultraviolet absorber to the colored coating film layer 20 in order to improve a weather resistance.

  In the embodiment, first, the transparent resin coating layer 40 is formed on the back surface of the carrier film 55, and thereafter, the layers are formed in the order of the colored coating layer 20, the anchor coating layer 30, and the primer layer 60. Further, as described above, the carrier film 55 is used as it is as the protective film layer 50, and finally peeled off.

  In this colored laminated film 10D for automobiles, since the anchor coat layer 30 is formed on the lower surface side of the colored coating layer 20, the solvent of the primer layer 60 is prevented from eluting and penetrating into the colored coating layer 20. Therefore, it is possible to prevent an adverse effect on the color development due to the solvent. In particular, the transparent resin coating layer 40 can be prevented from being attacked (swelled) by the eluted solvent.

  The colored laminated film 10E for automobiles according to the fifth embodiment shown in FIG. 5 is a base film layer 11 in which a colored coating layer 20 formed on the lower surface of the transparent resin coating layer 40 is adhered to the surface of the resin molded body M. And bonded through an adhesive layer 15. Also in this colored laminated film 10E for automobiles, the solvent of the adhesive layer 15 is eluted by forming the anchor coat layer 30 on the lower surface side of the colored coating film layer 20 as in the colored laminated film 10D for automobiles. It is possible to prevent penetration into the colored coating layer 20, and in particular, it is possible to prevent the transparent resin coating layer 40 from being attacked (swelled) by the eluted solvent.

  Moreover, you may give the primer layer 60 to the back surface of the base film layer 11 by a well-known primer process like the colored laminated film 10F for motor vehicles of the 6th Example shown in FIG. Thereby, the adhesiveness of the base film layer 11 and the resin molding M can be improved. In addition, it is also possible to give the adhesion layer 65 to the back surface of the base film layer 11 by a known adhesion treatment instead of the primer layer 60.

  As shown and described above, the colored laminated films 10A, 10B, 10C, 10D, 10E, and 10F of the present invention do not require a decorative PET layer like a conventional automotive film, and thus are sufficient. Flexibility and moldability can be obtained, and even when integrally molded with the resin molded body M, defects such as wrinkles do not occur.

  In particular, the colored laminated films 10A, 10B, 10C, 10D, 10E, and 10F for automobiles all have the anchor coat layer 30 on the lower surface side of the colored coating layer 20, so that the adhesive layer 15 and the primer layer 60 (adhesion) It is possible to effectively prevent the solvent of the layer 65) from penetrating and to adversely affect the films 10A, 10B, 10C, 10D, 10E, 10F such as the colored coating layer 20 and the transparent resin coating layer 40. Suppressing and making a more beautiful exterior.

  In addition, the colored laminated film for automobiles of the present invention is not limited to the above examples, and can be changed without departing from the spirit of the invention.

10A, 10B, 10C Colored laminated film for automobile 20 Colored paint film layer 30 Anchor coat layer 40 Transparent resin paint film layer 50 Protective film layer 60 Primer layer 65 Adhesive layer M Resin molded product

Claims (8)

It is a colored laminated film for automobiles adhered to the surface of a resin molded body,
Including a colored coating layer formed by kneading a pigment, a dye, a colorant alone or a mixture thereof in an acrylic resin or urethane resin alone or in a mixture thereof,
On the lower surface side of the colored coating film layer, an anchor coat layer is formed which has a primer layer or an adhesive layer on the back surface to enhance adhesion and protection between the colored coating film layer and the resin molded body. A colored laminated film for automobiles. It is a colored laminated film for automobiles adhered to the surface of a resin molded body,
A pigment, dye, or colorant alone or a mixture thereof is kneaded with an acrylic resin or a urethane resin alone or a mixture thereof, and a base film layer to be adhered to the surface of the resin molded body and a dry film on the upper surface thereof. Including a colored coating layer bonded through an adhesive layer composed of a laminate;
A colored laminated film for automobiles, wherein an anchor coat layer is formed on the lower surface side of the colored coating layer to enhance adhesion and protection between the colored coating layer and the adhesive layer. .   The colored laminated film for automobiles according to claim 2, wherein a primer layer or an adhesive layer is provided on the back surface of the base film layer.   The anchor coat layer is made of a polyester resin, a melamine resin, a urea resin, a urea-melamine resin, a urethane resin, an acrylic resin, a nitrocellulose resin alone or a mixture thereof, and has a thickness of 0.01. The colored laminated film for automobiles according to any one of claims 1 to 3, which is -5 µm.   The colored laminated film for automobiles according to any one of claims 1 to 4, further comprising a protective film layer on an upper surface of the colored coating layer.   The colored laminated film for automobiles according to any one of claims 1 to 4, wherein a transparent resin coating layer made of an acrylic resin or a urethane resin is formed on an upper surface side of the colored coating layer.   The colored laminated film for automobiles according to claim 6, wherein the transparent resin coating layer has a thickness of 3 to 100 μm.   The colored laminated film for automobiles according to claim 6 or 7, further comprising a protective film layer on the upper surface of the transparent resin coating layer.

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