JPS63230389A - Electrothermo-transfer recording medium provided with metallic luster printing - Google Patents

Abstract

PURPOSE:To enable metallic luster printing with high luminance and metallic luster printing with a desired hue, by dividing an intermediate layer into two sections consisting respectively of specified layers, and coloring a part or the entire part of a heat-fusible adhesive layer on a vapor-deposited metallic layer. CONSTITUTION:An intermediate layer divided into a section provided with an adhesive layer A3 by coating and a section comprising a heat-fusible releasable layer 2 and a vapor deposition anchor layer 4 is provided on a base 1, and a vapor-deposited metallic layer 5 and a heat-fusible adhesive layer B6 are provided thereon. A part or the entire part of the adhesive layer B6 is colored to form a colored adhesive layer 7. The metallic layer 5 is a layer for representing a metallic luster of a printed matter, and when the colored layer 7 consists of yellow, cyan and magenta parts 7Y, 7M, 7C, an expression of a metallic luster pattern with desired colors can be obtained through three color superimposition, as viewed from above the vapor-deposited metallic layer 5 after transferring. To perform metallic luster printing with a desired hue, printing is first conducted by using the adhesive layer 6 of the medium, and then perform printing by use of the colored layer 7 being conducted in a superimposing manner, whereby metallic luster printing with the desired hue can be easily performed. Naturally, a metallic color can be displayed when a printing by use of the colored layer 7 is not conducted.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a thermal transfer recording medium used in a thermal printing device using a thermal recording member such as a thermal head.

In particular, the present invention relates to a metallic gloss thermal transfer recording medium on which colored characters or patterns of any desired color, including gold or silver, can be easily formed using a conventional Kafuu printer method.

(Prior Art) In recent years, a thermal transfer recording method using a thermal head is rapidly becoming popular due to its advantages such as low noise, ability to print in color, and the ability to make the device relatively inexpensive and compact. However, in printing using conventional thermal transfer recording media, it is difficult to express gold or silver colors with high brightness, and it is also impossible to express metallic luster in desired colors.

(Problems to be Solved by the Invention) The present invention was developed in view of the above-mentioned circumstances, and enables high brightness metallic gloss printing to be easily obtained.

Moreover, it is an object of the present invention to provide a metallic gloss thermal transfer recording medium capable of printing metallic gloss with a desired hue.

Another object of the present invention is to use the three primary colors or the four primary colors with the addition of ink.
A transfer recording medium made up of different colors.

The object of the present invention is to achieve the above-mentioned purpose without changing the mechanism of the conventional Kashini printer, which prints patterns of arbitrary colors by overlapping colors using the printer.

Another object of the present invention is to provide a metallic luster thermal transfer recording medium that is easy to manufacture and can be provided at a low cost due to the disposable nature of the medium.

(Means for solving the problems) The present invention will be described below with reference to the drawings. The metallic gloss thermal transfer recording medium of the present invention has a base material (1
) on which the metal vapor deposited layer (5 ) and a heat-fusible adhesive layer B (6), and a part or all of the heat-fusible adhesive layer B is colored.

Group #(1) is commonly used as a support for thermal transfer recording media. Any film or sheet with the necessary heat resistance and strength may be used, and typical examples of such substrates include stretched polyester film and condenser paper. It is also common to provide a heat-resistant protective layer on one side of the base material to prevent sticking, if necessary.

The release layer (2) formed on the base material (1) is melted during printing by the heat of the thermal head, and is provided for the purpose of promoting the transfer of the metal vapor deposited layer (5) from the base material to the transfer paper. The first ingredient is carnauba wax.

Natural or synthetic waxes such as rice wax, montan wax, candelilla wax, and paraffin wax, heat-melting low molecular weight resins, etc. are used as main components. Considering the compatibility with thermal heads such as printing quality and speed, and the storage stability of the medium, the melting point of these compositions is 60.
The temperature is desirably above 100°C and below 100°C, and from the viewpoint of ease of peeling, it is desirable to contain as a component a wax having low strength and viscosity when melted under heat.

The vapor deposition anchor layer (4) formed on the release layer (2) is provided for the purpose of protecting the release layer (2) from heat during metal vapor deposition and improving the adhesion between the vapor deposited metal and the release layer. ing. The resins used for this vapor-deposited anchor layer (4) include alkyd resin and phenolic resin.

Resins such as vinyl resin, epoxy resin, acrylic LTL NW, hydrocarbon resin, urethane resin, polyether steel resin, butyral resin, and silicone resin can be used.

From the viewpoint of adhesion to waxes, film-forming properties, ease of coating, etc., compositions whose main components are chlorinated rubber, chlorinated polyolefin, saturated polyester resin, cellulose derivative, polyamide resin, or a combination thereof are preferable. used.

The purpose of the adhesive layer A (3) formed in another area on the base material (1) is to bond the base material and the metal vapor deposited layer, and prevents peeling at room temperature and the transfer of the metal vapor deposit layer to the transfer paper during printing. The goal is to prevent metastasis. Therefore, the same material as the deposited anchor layer (4) can be used.

The metal vapor deposition layer (5) is a layer for expressing the metallic luster of printed matter, and is typically made of aluminum from 10OA to 50OA.
Thicknesses up to A can be used, but other metals are also possible. When the aluminum vapor deposition layer is 0, if the film thickness is less than 100%, there will be little concealment of the base of the printed matter and the metallic luster will be poor, and if the film thickness exceeds 500%, the printing will be difficult to cut and the resolution will decrease. However, it is of course possible to use ratios outside the range depending on the purpose.

Adhesive layer B applied on the metallized layer (5) in the areas coated with the release layer (2) and the vapour-deposited anchor layer (4) on the substrate
(6) is a material that melts and adheres to the transfer paper during printing and at the same time fixes the metal vapor deposited layer (5) onto the transfer paper.
The same components as those for the release layer (2) can be used.

In addition, the colored adhesive layer (7) applied to other areas on the metal vapor deposited layer (5) is melted by heating during printing and transferred onto the transfer paper or onto the pattern formed on the transfer paper, resulting in multicolor It is a colored composition layer for expressing a pattern, and in particular, it is a substantially transparent colored layer when printing on a metal vapor deposited layer formed on transfer paper to obtain a metallic luster expression. This is desirable. Furthermore, these colored layers are yellow and cyan.

If the three colors of magenta are as shown in (7Y), (7M), and (7C) in Figure 1, the metallic luster pattern of the desired color can be expressed by overlapping the three colors above after transferring the metal vapor deposition layer. This is easily possible. A colored adhesive layer (the force component is basically the same binder component as the adhesive layer B(6)) and a coloring agent of a desired hue can be used.

In order to perform metallic gloss printing of a desired hue using the metallic gloss thermal transfer recording medium of the present invention, first the medium is shown in FIG.
This can be easily carried out using a printer that is mechanically the same as a normal thermal color printer by first printing using the area (7) and then overlapping the area (7). Of course, it is also possible to express the same color as metal (by not printing in the force area, or to express a color without the usual metallic luster by not printing in the area (6)). be.

(Effects of the Invention) According to the metallic gloss thermal transfer recording medium of the present invention, a metallic gloss printed matter of a desired hue can be easily obtained using an ordinary thermal color printer.

Ordinary color prints can also be obtained if metallic luster is not required. Furthermore, since the structure is such that a continuous metal vapor deposited layer is provided over the entire surface of the medium, it is possible to partially provide the vapor deposited layer,
Alternatively, there is no need to partially remove the deposited layer after the entire surface is deposited, which not only makes manufacturing easier and inexpensive, but also has the additional effect of significantly reducing the charge on the medium, preventing dust adhesion during use, and reducing the thermal head. Problems such as damage can also be prevented.

(Example) The following composition was partially coated on a polyester film with a thickness of 5.7 μm and dried to provide a release layer with a thickness of 0.8 μm. Rice wax: 10 parts by weight Carnauba wax: 10 EVA 21/Solvent
78 〃 A vapor-deposited anchor layer/adhesive layer made of a mixture of equal amounts of nitrocellulose and polyethylene terephthalate is formed on the entire surface to a thickness of 0.5 μm, and then a layer of 20 μm thick is formed on the entire surface.
Aluminum evaporation of i was carried out. After this, using the same binder as the release layer and a composition colored with yellow, cyan, and magenta pigments, adhesive layer B (6) and colored adhesive are applied from above the vapor deposited layer as shown in Figure 2. layer(
7Y), (7M), and (7C) were formed.

Using this medium, an ordinary color printer is used to print out areas of adhesive layer B (6) and area 1 of colored adhesive layer (7Y) shown in Figure 2.
When a pattern of a baboon was printed in the order of area 1 of the colored adhesive layer (7M) and area 1 of the colored adhesive layer (7C), a printed matter with an extremely metallic luster was obtained.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment of a metallic gloss thermal transfer recording medium according to the present invention, and FIG. 2 is a plan view thereof. (1)... Base material (2)... Peeling layer (3
)... Adhesive layer A (4)... Vapor deposition anchor layer (5).
...Metal deposited layer (6)...Adhesive layer B (7Y)
・・Colored adhesive layer (7M) ・・Colored adhesive layer (7C)・
・・Colored adhesive layer

Claims (5)

[Claims] (1) In a thermal transfer recording medium in which a metal vapor deposited layer and a heat-fusible adhesive layer are successively provided on one side of a base material via an intermediate layer, the intermediate layer is an adhesive layer that is continuously provided on the base material. and a region consisting of a heat-fusible release layer and a vapor-deposited anchor layer, and a part or all of the heat-fusible adhesive layer on the metal vapor-deposited layer is colored. A metallic gloss thermal transfer recording medium. (2) The heat-fusible release layer and vapor-deposited anchor layer of the intermediate layer are substantially uncolored and transparent, and the intermediate layer corresponds to the area consisting of the adhesive layer continuously provided on the base material via the metal vapor-deposited layer. 2. The metallic luster thermal transfer recording medium according to claim 1, wherein the heat-melting adhesive layer is colored and transparent. (3) A plurality of areas where the heat-melting adhesive layer corresponds to the area where the intermediate layer is made of the adhesive layer continuously provided on the base material via the metal vapor deposited layer and includes at least three colors of yellow, cyan, and magenta. The metallic luster thermal transfer recording medium according to claim 1 or 2, characterized in that the medium is coated in different colors. (4) The metal according to claim 1, wherein the heat-fusible release layer and the heat-fusible adhesive layer contain wax and are composed of a composition having a melting point of 60°C or more and 100°C or less. Glossy thermal transfer recording media (5) The metallic luster according to claim 1, wherein the vapor-deposited anchor layer is made of a composition whose main component is chlorinated rubber, chlorinated polyolefin, polyester, polyamide, or a combination thereof. thermal transfer recording medium