JPS6141600A - Easily colored metal-like glitter - 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] [Industrial Application Field] The present invention relates to metallic glitter made by cutting a metallized film into small pieces, and more specifically to metallic glitter that can be easily colored with a water-soluble resin coloring agent. - related to

[Conventional technology]

Conventionally, there have been two methods: (1) a transparent film coated with a metal vapor deposited with a transparent top coat layer formed on the metal vapor layer; and (2) a transparent film coated with a metal vapor deposited with a colored top coat layer formed on both sides. ■Metal-deposited transparent film with metal-deposited layers bonded together using an adhesive.

■Glitter is used by finely cutting a metallized film for ordinary gold and silver threads, such as a transparent film with a transparent colored layer and then a metal vapor deposited layer formed on one side, but the metal vapor deposited layers are adhered to each other with an adhesive. It is being

[Problem that the invention seeks to solve]

However, with conventional metallized films for gold and silver threads,
Since the surface is hydrophobic, when it becomes glitter, it does not mix well with water-soluble resin and is not evenly dispersed in water-soluble resin, resulting in pinholes, repelling, poor adhesion, etc. Because of this, it cannot be colored with a water-soluble resin coloring agent that is a mixture of water-soluble resin with dyes and pigments (
There was a problem.

[Means for solving problems]

In view of the above-mentioned circumstances, the inventors of the present invention have made extensive studies, and as a result, we have developed a metallized film whose surface is coated with a coating film that has an SP value close to that of water or has hydrophilic properties. It has been found that all of the above problems can be solved by cutting.

〔Effect of the invention〕

By adopting the above method, the surface of the metallic gritter is no longer hydrophobic but hydrophilic, so unlike conventional gritters, the glitter of the present invention is compatible with water-soluble resins. It can be dispersed uniformly and easily colored with water-soluble resins, dyes, and pigments, and does not cause pinholes, repellents, or poor adhesion, making it extremely simple and easy to display. This has a remarkable effect.

[For production]

The easy-to-color metallic glitter of the present invention will be explained with reference to the drawings. In FIG. 1, (1) is a metallized film, (2) is a coating film of a hydrophilic resin, and (3) is an easily colored metallic glitter of the present invention.

In the figure, first, a resin paint having an SP value close to that of water or having hydrophilic properties is applied to both sides of a metallized film (1) to form a hydrophilic resin coating (2). The easy-to-color metallic glitter (3) of the present invention can be obtained by forming a metallized film with hydrophilic surfaces on both sides and then cutting it into pieces.

As the metallized film (1), all those used for the above-mentioned ordinary gold and silver thread can be used, but for example, polyethylene terephthalate, polyethylene, polyethylene, polyamide, etc. having a thickness of about 1.5 to 50 μm can be used.
If necessary, an undercoat layer, a colored layer, etc. is pre-coated on the surface of a film made of polycarbonate, vinyl chloride, etc., and a metal vapor-deposited layer is provided on that surface, or a transparent coating is applied on top of this metal-deposited layer. Preferably used are those provided with a coating layer, or those with metal vapor deposited layers or transparent overcoat layers adhered to each other via an adhesive.

The hydrophilic resin coating (2) includes hydrophilic resins such as polyvinyl alcohol resin, polyamide resin, methyl cellulose resin, butyl resin, some polyester isocyanate resins, polyacrylonitrile resin, and polyvinylidene chloride resin. It can be formed by coating and drying the surface of the metallized film (1) with a resin paint whose main component is a resin, or by adding, for example, -8O, Hl-O20,
H, -08O,M, -COOM, -NRsX, -
COOH.

-NH,, -CN, -OR, -Nu CONH=,
-(OCR,CH,)n-1-8O,NH,C0-1(
However, R: is an alkyl group, M: is an alkali metal or -N
Surfactants with hydrophilic groups such as (H,, The metallized film (1) is coated with a resin paint mixed with amidosulfonic acid/salts, polyoxyethylene alkylphenol ethers, polyoxyethylene alkyl esters, etc.
It is formed by applying it to the surface and drying it. Although the mixing ratio of the surfactant and the resin depends on the combination thereof, it is usually preferably in the range of about 0.02 to 296 (volume %, the same applies hereinafter) to the resin. If it is less than 0.0296, the coating film (21) does not exhibit sufficient hydrophilicity and the object of the present invention cannot be achieved.If it is more than 296, the coating film performance deteriorates or the drying property is affected. The thickness of the coating film (2) is usually preferably in the range of about 0.5 to 4 μm. If it is less than 0.596, the hydrophilicity will not increase, which is not preferable. If it is 0 μm or more, it is not preferable because it may cause problems such as drying properties and paint film peeling.

〔Example〕

9 μm thick polyethylene terephthalate film,
A primer consisting of epoxy resin 4096, isocyanate 10%, methyl ethyl ketone 2596, and Trol 2596 was applied using a gravure method and dried to a thickness of approximately 1.2
A micrometer undercoat layer is formed, then silver is deposited using a vacuum evaporation method to form a silver deposited film with a thickness of approximately 70 nm, and then melamine acrylic paint (manufactured by Dainippon Ink) MC is used to prevent metal oxidation.
Apply M-3000E using the gravure method and dry to a thickness of approximately 1.
．． A 5 μm undercoat layer was formed to obtain an all-metallic film (1). Toyobo ester resin #30 on both sides is 19.6
%, methyl ethyl ketone 3996, doluol 39
A mixed resin solution consisting of 296% nitrocellulose (1/4 second) and 0.4% ethylene glycol was applied using a gravure method and dried to form a coating film (2) with a thickness of about 1.8 μm. , a metallized film surface-coated with a hydrophilic coating was obtained. Next, this metallized film was cut into pieces in the order of width 0.1-1 and length 0.1 to form glitter.

The easily colored metallic glitter of the present invention (3)
The surface can be colored freely with water-soluble resins, dyes, and pigments, and it has a bright metallic luster (has excellent dispersibility and compatibility with water-soluble resins, and does not cause pinholes (adhesive). It was also of excellent sex.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram for explaining the easy-to-color metallic glitter of the present invention. (Drawing codes) (1): Metallized film (21: Coating film

Claims (2)

[Claims] (1) A metalized film that is easily colored with a water-soluble resin colorant, characterized by finely cut metallized film whose surface is coated with a coating film that has an SP value close to that of water or has hydrophilic properties. glitter. (2) The coating film forming resin has a hydrophilic group, for example -SO_3H,
-OSO_3H, -OSO_3M, -COOM, -NR
_3X, -COOH, -NH_2, -CN, -OH, -
NHCONH_2, -(OCH_2CH_2)n-, -
SO_2NH_2CO-, (where R: is an alkyl group,
M: is an alkali metal or -NH_4, X: is a halogen) Claim 1
A metallic glitter that can be easily colored with the water-soluble resin colorant described in Section 1.