JPS59232852A - 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 printed polyester resin-coated metal plate, and more specifically to an acrylic or rubber-based adhesive used to bond a transparent or translucent polyester resin film to a metal plate. , epoxo-based, urethane-based, amine-based, or ester-based resin, and one or more of inorganic pigments, organic pigments, and metal powders are added to the resin for printing. with ink,
A pattern is printed on a transparent or semi-transparent polyester resin film and laminated directly onto a metal plate to improve surface hardness without reducing the physical properties of the resin or adhesive performance.

This invention relates to a metal plate coated with a printed polyester resin film that has excellent properties such as stain resistance, designability, and processing adhesion.

BACKGROUND ART Composite abrasive materials made by coating a metal plate with a polyester resin film by a laminating method have been used in fields such as home appliances. However, these polyester resin film composite materials have an adhesive layer and a vinyl chloride resin 1+ between the polyester resin film and the metal plate.
Most of the films are made of polyester resin films coated with aluminum vapor deposition, but there are no films that are printed with floral patterns, wood grain patterns, etc. Products coated with aluminum vapor deposition have poor water resistance and processing adhesion, and have design problems, so their uses are limited.

In order to obtain a product that is superior in design and economical efficiency, the present invention
Solid content of resin consisting of one or more of the above resins 1
A printing ink containing 5 to 200 parts by weight of one or more of inorganic pigments, organic pigments with a particle size of 01 to 0 μm, and metal powders with a particle size of 01 to 25 μIn to 00 parts by weight. , a pattern is printed on a transparent or translucent polyester resin film with a thickness of 5 to 200/1 m, and laminated directly onto a metal plate at high speed without using vinyl chloride resin or other resins, resulting in a design that is better than conventional ones. It has an excellent and unique surface appearance, and is also highly economical. Further, since the printed portion is not exposed on the surface, a metal plate coated with a printed polyester resin film that does not fade in color is provided.

The contents of the present invention will be explained in detail below. First, a transparent or translucent polyester resin film is used as the resin to cover the upper layer.

The resin used for the printing ink may be one of acrylic resins, rubber resins, epoxy resins, urethane resins, amino resins, or ester resins that have adhesive properties to polyester resin films and steel plates. It includes two or more types.

Next, the pigment to be added to the printing ink is one or more of inorganic pigments, organic pigments, and metal powders that are commonly used as pigments in printing inks. The particle size and blending amount are such that the powder has a particle size of 01 to 25 μm, and contains 5 to 200 parts by weight of the powder per 100 parts by weight of the 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, if the amount added to the resin layer is 200 parts by weight or more, the adhesion will be significantly reduced when a polyester resin film is coated. The optimum amount is 20 to 60 parts by weight. Further, the particle size of the powder is preferably 01 to 25 μm, and if it exceeds 25 μm, the printing characteristics will be deteriorated and the coverage of the soil layer with the polyester resin will be deteriorated.

Next, as the metal substrate, mild steel plate (including rolled foil),
Electroformed iron foil, aluminum plate (including rolled foil), individual plating of zinc, tin, lead, aluminum, copper, chromium, nickel, or two or more alloy-plated steel sheets, alloys with zinc as the main component (composite) Examples include plated steel sheets, cut sheets of chemically treated steel sheets with chromate, phosphate, etc., and strip sheets. Of course, the galvanized steel sheet may be electrolytically or melted, and it is also possible to apply a chemical conversion treatment after plating.

At the same time, the thickness of a transparent or translucent polyester film is preferably from 5 to 20,071 m, and if it is less than 57 zm, the processability will decrease, and if it is more than 200 μm, it will be economically disadvantageous.

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

Next, an example of a method for obtaining a metal plate coated with a polyester resin film having the seal 1ii1 of the present invention will be briefly described.

First, use acrylic printing ink colored with black and brown pigments to print a wood grain pattern on the inner surface of the polyester resin film, then use the same ink to print the wood grain pattern. Solid printing is further applied to the surface and dried at an ambient temperature of 100 to 140° C. for 10 to 30 seconds to produce a printed film for lamination.

Then, lamii-
View. After lamination, it is immediately cooled to obtain a printed polyester resin-coated metal plate.

Thus, the polyester resin film-coated metal plate marked with 1-) has superior design properties compared to conventional ones, and also has superior processing adhesion, and can be laminated directly onto the metal plate. It is also economical and heat-resistant.

Examples will be described in detail below.

Example 1 A polyester resin film printed by the processing method of the present invention was printed on one side of a degreased and pickled mild steel plate with a surface edge of 0.5 am using a pigment-added printing ink. coated.

Coated Resin Film Polyester Resin Film Printing Inks Four types of printing inks were prepared: Cyanine Flu, Soanine Clean, Carmine, and Titanium Yellow. Mix the following (
This is shown.

Urethane resin (solid content 50%) Acrylic resin (solid content 30%) Curing agent organic pigment (particle size: 1-3//In) 20 Heavy foot inorganic pigment (titanium yellow) (particle size: 1-3 μm) 50 Weight part treatment method: Print a wood grain pattern on one side of the polyester resin film using the above printing ink using Li:lJ equipment.
After that, a rough print is applied to the printing surface in a brownish color mixed with the printing ink, dried for 10 to 30 seconds at an ambient temperature of 100 to 140°C, and then dried at a temperature of 200 to 230°C.
It was laminated onto a heated steel plate and immediately quenched.

The printed polyester resin film-coated metal plate was able to obtain a drawer, wood-grain appearance different from conventional ones.

Also, even if Igeta Elirasen 8χ overhang processing is applied, the interlayer I between the polyester resin film and the marked 101" surface, and the steel plate
No peeling was observed, and the processing adhesion was good.

Example 2 A polyester resin film printed by the treatment method of the present invention was printed on one side of a degreased electrolytic chromic acid treated steel plate J'7-06wII using a printing ink containing pigments and metal powder. I got hurt.

Coated Resin Film Polyester Resin Film Printing Inks Five types of printing inks were prepared: cyanine full, carmine, and nitrogen 7)) lean, titanium yellow, and aluminum powder. The formulation is shown below.

Acrylic resin (solid content 30%) Epoquin resin (solid content 30%) Curing agent (particle size: 1 to 3 μm) 20 parts by weight Inorganic face A:L (Titanium yellow) (Particle size: 1 to 3 μm ) 50 parts by weight Aluminum powder (scaly) (particle size: 1 to 25 μm) 20 parts by weight Processing method After printing a floral pattern on one side of the polyester resin film with the above printing ink using printing equipment, the printing Solid printing of aluminum color printing ink on the surface, 100%
It was dried for 10-30 seconds at an ambient temperature of ~140°C, then laminated onto a steel plate heated to 200-230°C, and immediately quenched.

The metal plate coated with a polyester resin film marked with the mark 11ilJ was able to obtain a unique appearance different from conventional ones. Further, the processing adhesion was as good as in Example 1.

Example 3 A printing ink containing pigments and metal powder was used on a tin-plated steel plate with a clean surface and a thickness of 0.32 (amount of tin on one side: 5.6?/1r?) according to the present invention. Two types of printing inks, cyanine blue and aluminum powder, were prepared by coating a polyester resin film printed by the processing method of the invention. The formulation is shown below.

Acrylic resin (solid content 30%) Acrylic resin (solid content 25%) Hardening agent organic pigment (cyanine blue) (particle size: 1 to 3 μm) 20 parts by weight aluminum powder (scaly) (particle size: 1 to 25 μm) 20 parts by weight Processing method After printing a checkered pattern on one side of the polyester resin film with the above printing ink using printing equipment, the mark 11
Aluminum-colored printing ink was printed all over the surface of IL1, dried for 10 to 30 seconds at an ambient temperature of 100 to 140°C, then laminated onto a steel plate heated to 200 to 300°C, and immediately quenched.

The printed polyester resin film coated metal plate was able to obtain a unique appearance different from conventional ones. Further, the processing adhesion was as good as in Example 1.

Example 4 On the surface? Electrolytic chromic acid treatment (0.5 m2/dJ as Cr) was applied to a clean 20 μm electrocast iron foil, and the face Jfi
), Kim IJ.

A powdered printing ink was used to coat a +1i1J stamped polyester resin film on one side by the processing method of the present invention.

Coated resin film Polyester resin film (product name: Nilmirror, manufactured by Toyo Rayon Co., Ltd.) (thickness:
25) 11n) Printing ink modified polyester type (solid content 30%) Hardening agent inorganic pigment (titanium yellow) (particle size: 1-3 μm) 20 parts by weight aluminum powder (scaly) (particle size: 1-25 μm) 20 Weight part processing method After printing the above printing ink on one side of the polyester resin film using printing equipment, a printing ink containing titanium yellow is printed solidly, and then an aluminum color printing ink is printed solidly on the surface of the mark III. Dry at an ambient temperature of 140°C for 10-30 seconds, then dry at a temperature of 200-300°C.
It was laminated onto a steel plate heated to ℃ and immediately quenched.

The printed polyester resin film coated metal plate was able to obtain a unique appearance different from conventional ones.

Further, even when the polyester resin film and the electroformed iron foil were subjected to hardening at a drawing ratio of 1.4, no delamination was observed between the polyester resin film and the electroformed iron foil, and as in Example 1, the processing adhesion was good.

As is clear from Examples 1 to 4, the metal plate coated with the printed polyester resin film according to the present invention can be transparent or translucent by printing ink colored with inorganic pigments, organic pigments, and metal powders. Wood grain on polyester resin film.

Claims (2)

[Claims] (1) One or two of acrylic, rubber, Epoquin, urethane, amino, or ester resins are applied to the inner surface of a transparent or translucent polyester film.
A resin consisting of more than one species, and an inorganic pigment. Organic pigment particle size 01-10 μm, metal powder particle size 0.1
1 to 100 parts by weight of the powder is added to 100 parts by weight of the solid content of the resin, and a pattern is printed with a colored printing ink, and the pattern is printed through the printing layer. A metal plate coated with a printed polyester resin film, characterized in that the polyester film and the metal plate are strongly adhered. (2) The metal substrate is a mild steel plate (including rolled foil), an electrocast iron foil, an aluminum plate (including rolled foil), zinc, tin, lead,
Patent claims for steel sheets plated with aluminum, copper, chromium, nickel alone or with two or more alloys, alloy (composite) plated steel sheets with zinc as the main component, steel sheets chemically treated with chromate, phosphate, etc. A metal plate coated with the printed polyester resin film according to item 1.