JPS60174645A - Metallic plate coated with printed polyester resin film - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a metal plate whose surface is coated with a vinyl chloride resin film and which is coated with a printed polyester resin film. Acrylic, rubber, epoxy, and urethane types used for adhesion between resin films and vinyl chloride resin coatings.

A resin consisting of one or more amino-based or ester-based resins, an inorganic pigment, and an organic pigment.

A metal plate that is coated with a vinyl chloride resin film, with a transparent or translucent polyester resin film coated with a pattern or solid print using a colored printing ink containing one or more metal powders.

This relates to a metal plate coated with a printed polyester resin film that is laminated directly onto the substrate and has excellent properties such as design, surface hardness, stain resistance, and processing adhesion without deteriorating the physical properties of the resin or adhesive performance. be.

BACKGROUND ART Composite materials in which a metal plate is coated with a polyester resin film by a lamination method have been used in some fields such as home appliances. However, the two-layer polyester resin composite material has an adhesive layer interposed between the polyester resin film and the vinyl chloride resin film. In addition, there are colored polyester resin films with aluminum vapor deposition, but they have floral patterns.

There are no woodgrain patterns or other printed items. Products coated with aluminum evaporation have poor processing adhesion and water resistance, and are particularly problematic in terms of design, so their uses are limited. In addition, some metal plates coated with vinyl chloride resin film are laminated with polyester resin to improve the surface hardness, but in all cases the adhesive layer is used, and none of them are printed, and the adhesion of the film is poor. Because it is insufficient, its uses are severely limited.

In order to obtain an excellent design and economic efficiency, the present invention has the following features:
The particle size of the inorganic pigment or organic pigment is 0.000 parts per 100 parts by weight of the solid content of the resin or the resin composed of two or more of the above resins.
A transparent or translucent polyester resin film of 5 to 200 μm is prepared by adding 5 to 200 parts by weight of metal powder with a particle size of 0.1 to 25 μm. A pattern or solid print is applied to the metal plate, and laminated directly at high speed onto a metal plate coated with a vinyl chloride resin film of 5 μm to 250 μm without using an adhesive layer to create a metal plate coated with a conventional vinyl chloride resin film or polyester. Better design than metal plate coated with resin film! The object of the present invention is to provide a metal plate coated with a printed polyester resin film that has excellent two-sided properties and economical efficiency, and has no color fading because the printed portion is not exposed on the surface.

The contents of the present invention will be explained in detail below. First, when coating a vinyl chloride resin film 3- to improve the design, any known material may be used, and the thickness of the film may be 5 to 2.
A suitable thickness is 50 μm, and either a sol method or a film method may be used. When the thickness is 50 μm or less, the organosol method is preferable, and when it is larger than that, it is preferable to use a paste sol or film method for coating. If the thickness is 5 μm or less, no improvement in design is seen, and if it is 250 μm, no further improvement in design is seen, resulting in poor economic efficiency. Next, a transparent or translucent polyester resin film is applied as the resin to be coated on the upper layer. The resin used for the printing ink is one of acrylic resins, rubber resins, epoxy resins, urethane resins, abrasion resins, or ester resins that have adhesive properties to polyester resin films and vinyl chloride resin films. Contains a species or two or more species. Pigments added to printing inks include inorganic pigments and organic pigments that are commonly used as pigments in printing inks.

One or more types of metal powder. 70 Particle size and blending amount are powders having a particle size of 0.1 to 25 μm, and containing 5 to 4 to 200 parts by weight of the powder per 100 parts by weight of solid content of the resin. Here, if the amount of the powder added is less than 5 parts by weight, the impact force will be extremely reduced, which is not preferable. On the other hand, the amount added to the resin layer is 200
If the amount exceeds 1 part by weight, the adhesion will be significantly reduced when a polyester resin film is coated. The optimal range is 20~
It is 60 parts by weight. Further, the particle size of the powder is 0.1 to 25
The thickness is preferably 25 μm, and if it is 25 μm or more, printing characteristics will be deteriorated and coverage of the upper layer polyester resin will be deteriorated.

Metal substrates include mild steel plates (including rolled foils), electrocast iron foils, aluminum plates (including rolled foils), and zinc, tin,
Lead, aluminum, copper, chromium.

Cut sheets or strips of steel sheets plated with nickel alone or with two or more alloys, alloy (composite) plated steel sheets with zinc as the main component, chemical conversion treated steel sheets with chromate, phosphate, etc. are drilled.

Of course, the galvanized steel sheet may be plated by any method such as electrolytic or melting (or it may be coated by chemical conversion treatment after plating).

Next, the thickness of the transparent or translucent polyester film is usefully between 5 and 200 .mu.m; if it is less than 5 .mu.m, the processability will decrease, and if it is more than 200 .mu.m, it will be economically disadvantageous.

On the other hand, the thickness of the printed layer is generally preferably in the range of 1 to 15 .mu.m; if it is less than 1 .mu.m, the adhesion will be extremely reduced, causing a practical problem, and if it is 15 .mu.m or more, it will be economically disadvantageous.

Next, an example of a method for obtaining the printed polyester resin film-coated metal plate of the present invention will be briefly described.

First, a wood grain pattern is printed on the inner surface of the polyester resin film using printing equipment using acrylic printing ink colored with black and brown pigments, and then the same ink is used to print the printed surface. Furthermore, solid printing is performed and dried at an ambient temperature of 100 to 140° C. for 10 to 30 seconds to create a printed film for the cavity.

Next, the metal plate coated with a vinyl chloride resin film having a thickness of 100 μm is heated to 250° C., and the printed film is laminated thereon. After lamination, it is immediately cooled to obtain a printed polyester resin-coated metal plate.

(Thus, the printed polyester resin film-coated metal plate thus obtained has a further improved design and excellent processing adhesion compared to a metal plate not coated with vinyl chloride resin 11M.

In the method of the present invention, vinyl chloride resin that is colored or printed with a pattern can be used, or vinyl chloride resin that is not colored can be used. □ Examples will be explained in detail below.

Example 1 A degreased, pickled, and surface-clean mild steel plate with a thickness of 0.5 m was coated with a 50 μm organosol film, and printed using a printing ink containing pigments according to the processing method of the invention of the present application. A polyester resin film was coated onto the organosol coating.

Coated resin film Polyester resin film (trade name: Nilmirror, manufactured by Toyo Rayon Co., Ltd.) 7- (Thickness: 20 μm) Printing ink Four types of printing ink, carmine, titanium yellow, and cyanine blue carbon, were prepared.

The formulation is shown below.

Acrylic-rubber resin (solid content 30%) (rubber component 1
0% acrylic resin) 100 parts by weight Epoxy resin (solid content 30%) Organic pigments (carmine, cyanine blue) (particle size: 1 to 3 μm) 20 parts by weight inorganic pigments (titanium yellow, carbon) (particle size: 1 ~3 μm) 40 parts by weight Curing agent (trade name: Catalyst F manufactured by Adeka) 2 parts by weight 8- Processing method After printing a wood grain pattern on one side of the Hoki polyester resin film with the above printing ink, apply the above printing to the printed surface. Solid printing is done in a brown color mixed with ink, and the size is 100~
It was dried at an ambient temperature of 140 DEG C. for 10 to 30 seconds, then laminated onto a metal plate coated with a vinyl chloride resin film heated to 230 DEG C., and immediately quenched.

The printed metal plate coated with a polyester resin film of the present invention was able to obtain a woodgrain appearance with excellent design compared to a metal plate not coated with a vinyl chloride resin film.

Further, even when # digit Erichsen 8% overhang processing was performed, no interlayer peeling was observed between the polyester resin film, the printed surface, and the vinyl chloride resin, and the processing adhesion was good.

Example 2 A degreased electrolytic chromic acid treated steel plate with a thickness of 0.6
A 0 μm plastisol film was coated, and a polyester resin film printed by the processing method of the present invention was coated on the plastisol film using a printing ink containing pigments and metal powders.

Coated Resin Film Polyester Resin Film Printing Inks Five types of printing inks were prepared: cyanine blue, carmine, cyanide/green, titanium yellow, and aluminum powder. The formulation is shown below.

Acrylic resin (II!LI type part 25 parts 25 parts by weight Epoxy resin (solid content 30%) Organic pigments (cyanine blue, carmine, cyani/green) (particle size: 1 to 3 μm) 15 parts by weight Inorganic pigments (titanium yellow ) (Particle size: 1 to 3 μm) 50 parts by weight Aluminum powder (scaly) (Particle size: 1 to 25 μm) 5 parts by weight Processing method After printing a floral pattern on one side of the polyester resin film with the above printing ink. , solidly print an aluminum-colored printing ink on the printing surface, dry it for 10-30 seconds at an ambient temperature of 100-140°C, and then ink it at 200-230°C.
It was laminated onto a metal plate coated with a vinyl chloride resin film heated to 0°C, and immediately quenched.

The printed polyester resin film coated metal plate of the present invention was superior in design and had a unique appearance compared to a metal plate not coated with a vinyl chloride resin film. Further, the processing adhesion was as good as in Example 1.

11-Example 3 A 150 μm vinyl chloride resin film was laminated onto a tin-plated steel plate with a clean surface and a thickness of 0.321 mm (amount of tin deposited on one side: 5.6 t/rr?), and pigments and metal powder were applied. A polyester resin film printed by the processing method of the present invention was coated on one side with a printing ink containing .

Coated resin film Polyester resin film printing ink Two types of printing ink, cyanine blue and aluminum powder, were prepared. The formulation is shown below.

Acrylic-epoxy resin (solid content 30%) (acrylic resin containing 10% epoxy resin) 100 parts by weight acrylic resin (solid content 25%) 12- Organic pigment (cyanine blue) (particle size: 1 to 3 μm) 20 Part by weight Aluminum powder (scaly) (Particle size: 1 to 25 um) 20 tls Processing method After printing a checkered pattern on one side of the polyester resin film with the above printing ink, solid printing with aluminum color printing ink on the printing surface. It was dried for 10 to 30 seconds at an ambient temperature of 100 to 140°C, then laminated onto a metal plate coated with a vinyl chloride resin film heated to 230°C, and immediately quenched.

The printed metal plate coated with a polyester resin film of the present invention had an improved design and a unique appearance compared to a metal plate not coated with a vinyl chloride resin film. Further, the processing adhesion was as good as in Example 1.

Example 4 Electrolytic chromic acid treatment (
0.519/dtr as Cr? ) and 100μ
Pigment is laminated with a vinyl chloride resin film of m.

A polyester resin film printed by the processing method of the present invention was coated on one side with a printing ink containing metal powder.

Coated resin film Polyester resin film Printing ink Acrylic-urethane resin (solid content aO96) (acrylic resin containing 596 urethane resin) 100 parts by weight Inorganic pigment (y-tan yellow) (particle size: 1 to 3 μfn) 20 parts by weight Aluminum powder (scaly) (particle size: 1 to 25 μm) 10 parts by weight Processing method After printing the printing ink on one side of the polyester resin film using printing equipment, using a printing ink containing titanium yellow, Solid printing with aluminum-colored printing ink is performed on the printing surface, dried for 10 to 30 seconds at an ambient temperature of 100 to 140°C, and then laminated to a metal plate coated with a vinyl chloride resin film heated to 220°C.
It was immediately quenched.

The printed polyester resin film coated metal plate of the present invention was superior in design and had a unique appearance compared to a metal plate not coated with a vinyl chloride resin film.

Further, even when processing was performed at a drawing ratio of 1.4, no delamination between the polyester resin film and the vinyl chloride resin film was observed, and as in Example 1, the processing adhesion was good.

As mentioned above, as is clear from Examples 1 to 4, the metal plate coated with the vinyl chloride resin film of the present invention and the polyester resin film printed thereon was coated with an inorganic pigment,
Printing ink is colored by adding organic pigments and metal powder,
A transparent or semi-transparent polyester resin film is printed with wood grain, floral patterns, etc., then solid printing is applied to the printed surface, and then laminated directly onto a metal plate coated with a vinyl chloride resin film. It has an excellent surface appearance with a different design from other products, does not fade in color, is easy to process, and is economical.

16-

Claims (2)

[Claims] (1) A metal plate coated with a vinyl chloride resin film of 5 to 250 μm! ! On the surface, a transparent or translucent polyester film, on the inner surface, a resin consisting of one or more of acrylic, rubber, epoxy, urethane, amino, or ester resins, and an inorganic pigment or organic pigment. particle size of 0.1 to 10 μm, metal powder particle size of 0.1 to 25 μm
One or more of the powders are added to a solid content of 10% of the resin described in W.
Add 1 to 100 parts by weight of the above powder to 0 parts by weight, apply a pattern or solid print with a colored printing ink, and use the printed layer to strongly bond the polyester film and the metal plate covered with the vinyl chloride resin film. A metal plate coated with a printed polyester resin film, characterized in that it is glued. (2) The metal substrate is a mild steel plate (including rolled foil), electrocast iron foil, aluminum plate (including rolled foil), or single plating of zinc, tin, lead, aluminum, copper, chromium, or nickel, or The printed polyester resin film according to claim 1, which is a steel plate coated with two or more alloys, a steel plate coated with an alloy (composite) containing zinc as a main component, a steel plate chemically treated with chromate, phosphate, etc. metal plate coated with