JPS62259884A - Transfer film, transferred article obtained using the same and transfer forming method - Google Patents

Abstract

PURPOSE:To transfer a transfer pattern having a sharp edge, by applying a vehicle mixture based on a metal coated powder and a liquid resin binder to the single surface of transfer film to form a vehicle coating layer. CONSTITUTION:A metal coated powder 3 is obtained by coating a ceramic fine powder at a fine powder nucleus 1 with a metal 2 such as palladium Pd, platinum Pt or rhodium Rh and is an ultrafine particulate powder having a particle size of 0.01-30mum. A resin powder 4 formed into a solution form is mixed with said powder 3 in a wt. ratio of 6:4 to prepare a vehicle 5 which is, in turn, applied to the single surface of the tape or the transfer film 6 formed of a material such as polyester or cellophane to form a coating layer 5a having a thickness of 0.1-100mum and, further, a heat-sensitive adhesive layer 7 is formed to the surface of said coating layer 5a by coating. Because only the resin material of the binder positioned between powder particles may be separated from the transfer film to be transferred to a base material, an extremely small character or code, a picture or a wire pattern can be transferred certainly.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a transfer film, a transfer object transferred using the transfer film, and a transfer forming method for forming the transfer object. Specifically, thermal transfer films and thermally transferred transfer materials for forming industrial electrical lead wire printed wiring, or patterns such as letters, codes, pictures, etc. with metallic luster on transfer substrates. The present invention relates to a method for forming this transferred object.

<Prior art> A conventionally commonly used thermal transfer method is a method usually called a hot stamping method, as shown in FIG.
The film coated with a heat-sensitive adhesive (e) is placed opposite the transfer base material (d), heated and pressed using a desired mold (e), and then the heat transfer film (a) is removed and the base material ( d) Desired patterns, letters, etc. with metallic luster were obtained on the surface.

The present invention eliminates the drawbacks of the above-mentioned conventional technology, and can transfer even minute linear transfers, and the transferred characters, codes, pictures, printed wiring, and pond patterns can be sharply transferred according to the shape of the transfer mold. A heat or pressure transfer film that can be transferred with a green transfer pattern, and a transferred object that is transferred using this heat or pressure transfer film and has a continuous gold R layer on the transfer surface, A transfer forming method for forming this transferred object is proposed here.

First, the configuration of the transfer film as the first invention consists of a mixture of a metal-coated powder (3) in which a fine powder nucleophile (1) is coated with a metal (2) and a solution-like 8I fat binder (4) as the main ingredients. The mixed vehicle (5) is coated on one side of the transfer film (6), resulting in vehicle coating! (5a) is formed.

Further, the structure of the transfer target as the second invention is that the fine powder nucleophilic (
A mixture vehicle (5) in which a metal coating powder (3) in which metal (2) is coated on 1) and a solution resin binder (4) as main ingredients is used as a transfer film (
6) coated on one side to form a vehicle coating layer (5a).
) on the transfer mold (1
0) on the transfer base material (9) with pattern 1! ! (5b)
is transferred and formed, and this transfer-formed pattern film (5
b) powder (3) in the vehicle (5);
A series of continuous metal plating layers (5C) are formed using the catalyst metal (2) coated on the metal plate as a growth nucleus of the plating layer.

Furthermore, the transfer forming method for forming a transferred object as the ptS3 invention includes (a) forming a metal (2) on a fine powder nucleophile (1);
b) mixing the metal coating powder (3) and solution resin paint (4) to form a mixing vehicle (5);
(c) The mixture vehicle (5) is transferred to the transfer film (6).
Vehicle coating ff1 by coating on one side of
(5a) and (d) an adhesive layer (7) formed immediately after or on the surface of the vehicle coating layer (5a) on the transfer film (6) obtained through the above steps. After applying pressure to the back side of the transfer film (6) with a transfer mold (10) which is placed oppositely on the transfer base material (9) and has a desired pattern formed on the mold surface, The film (6) is removed from the transfer base material (9), and the transfer mold (
10) A patterned film (5b) that responds to the pattern formed on the mold surface.
) is transferred onto the transfer substrate (9), and (e) the pattern film (5b) thus obtained is formed on the transfer substrate (9).
is immersed in the electroless metal plating solution (11), pattern g! (
5b) Form a metal plating layer (5C) connected to the metal coating powder (3) on the surface in series. (v) This method is to form the film through the above-mentioned means.

<Function> The present invention uses a mixed vehicle (5), which is a mixture of fine powder (1) coated with a metal (2) and a resin binder (4) in the form of a solution, as a main ingredient, and a vehicle coating layer (5a). ), so when this vehicle coating layer (5a) is transferred to the transfer substrate (9), the vehicle coating layer (5a
) is located between the whole powder cores (1), and the resin binder (
4) It will be cut at the part, and there is no need to separate the metal-coated fine powder technique (1) itself.
Even extremely thin lines can be easily and smoothly transferred with sharp side edges of the transfer pattern.

After that, the fine powder technique (1) coated with the metal (2) is completely connected to each other by electroless plating treatment,
This makes it possible to make the transferred pattern an electrical conductor and at the same time increase the metal density and increase the gloss.

<Example> Fig. 1 shows a fine powder technique (1) used in the method of the present invention, in which ceramic fine powder (polymer or metal fine powder may be used), for example, palladium (Pd), platinum (Pt), etc. ),
An enlarged view of metal-coated powder (3) obtained by coating metal (2) such as rhodium (Rh) is shown. This powder (3) is an ultra-fine powder with a particle size of 0.0
Those having a diameter of 1 to 30 μm are mainly used. Moreover, the particle size may be in the range of o, oos to 1000 μm. ! Figure @2 shows the stage at which a vehicle (5) was obtained by mixing the resin binder (4) in solution form with the powder (3) at a ratio of 6:4. Figure f53 shows a coating layer (with a thickness of 0.1 to 100 μm) obtained by coating the vehicle (5) on one side of a transfer film (6) tape made of a material such as polyester or cellophane.
5a) and further heat-sensitive adhesive M (7) (
or a pressure-sensitive adhesive), and if necessary, a release film (8) such as release paper is temporarily pasted on the surface. 5 is a partially enlarged vertical sectional side view showing a part of FIG. 5 enlarged. f
Figure jS5 shows the above vehicle coating film,
Transfer base material (9) made of polyester plate
) (which may be a plate or flexible film made of polyimide, polyimideamide, cellophane, etc.) and the adhesive layer (
7) are placed so as to face each other and are in contact with each other, and the state immediately after being heated and pressed by a heat transfer mold (10) with a predetermined pattern letter A formed on the mold surface is shown. The f56 diagram shows this transcription type (10
), the transfer film (6) is heated and pressed.
) is removed from the transfer base material (9). In this way the vehicle coating layer (5a)
is attached to the transfer base material (
9) Adhesive transfer onto. FIG. 7 shows that the transfer substrate (9) obtained in the above step is immersed in an electroless plating solution, for example, a MM deplating solution for nickel, gold, silver, platinum, or an alloy thereof. Showing the process of performing electrolytic plating treatment, the metal coated on the fine powder technique (1) (2)
As a catalyst, a plating layer with a thickness of about 20 microns is applied to the side of the plating layer> ■ The material of the resin binder (4) is a material of the same type and quality as the material of the transfer base material (9), or a material with a high degree of mutual affinity. The vehicle coating layer (5a
The resin of the resin binder (4) is heated and melted without forming an adhesive layer (7) on the surface of the transfer base material ().
9) A method of performing thermal transfer on.

For this reason, the following can be used as combination materials, for example.

When the resin binder (4) is a copolymer such as polyvinyl chloride or vinyl acetate, the transfer base material (9) is polyvinyl chloride or ABS.

It is preferable to use a resin material sheet such as AS, polycarbonate, methyl methacrylate, or styrene.

■ The weight mixing ratio of the powder (3) and the resin binder (4) is 95:5 to 5:9 in addition to the above-mentioned 6:4.
It can also be implemented as a ratio in the range of 5.

(2) The adhesive forming the adhesive ffi (7) has been described as being heat-sensitive, but a pressure-sensitive adhesive may also be used.

■ The above-mentioned fine powder technique (1) and gold 1 to coat it
As (2), the following combination of materials can be used.

Specific materials for fine powder technique (1) include plas, silica sand, carbon, titanium oxide, alumina, barium sulfate, iron, nickel, phenol, and polypropylene, and coating metals (2) include palladium and rhodium. ,
Platinum or the like is used.

(2) The following combination of materials can be used for the combination of the gold M(2) and the electroless plating solution.

When palladium, rhodium, platinum, etc. are used as the metal (2), copper, nickel, chromium, gold, silver, platinum, or an alloy thereof can be used as the electroless plating solution.

(2) As the material for the transfer film (6) and the transfer base material (9), the above-mentioned materials such as Tetoron, cellophane, polyimide, and polyimideamide can be used.

■ In the above example, the structure was shown in which the letter A was transferred to a plate material made of Tetron as the transfer base material (9), but m
As shown in Figure 8 (A), the transfer base material (9) is a 7lexible thin film, and as shown in Figure 8 (B), the electrical lead M (5e) and the plate arrangement #1 ( 5c) may be formed.

■ Also, as shown in Figure 9, transfer the picture to a transfer base (9
), and a picture (5c) with excellent metallic luster can be formed by electroless plating. Since the coating layer is a transfer film coated using a mixed vehicle in which metal coating powder, which is a metal coating powder coated with metal using a fine powder technique, is mixed with a resin solution as a binder, the transfer target, that is, the transfer substrate. There is no need to separate the metal-coated powder itself in the vehicle coating layer by applying heat or pressure to the eaves sill, and only the resin material as the paint located between these powders is transferred from the transfer film. Since it is only necessary to transfer the pattern to the substrate for printing, the side edges of the pattern film to be transferred onto the transfer base material can be made extremely sharp in accordance with the shape of the transfer mold. It has the remarkable effect of being able to reliably transfer extremely small characters, codes, pictures, wire patterns, etc., which was impossible with conventional methods.

Further, the second invention referred to in the present invention is such that the powder in the mixing vehicle is coated on the transfer pattern-like film on the transfer Shukimura that has been transferred using the transfer film thus formed. Since the metal plating layer is formed using the metal as a connecting catalyst, the metal plating layer can be accurately formed only on the part where the powder is present, and the metal plating layer with high gloss can be formed on extremely thin lines. In addition to being able to reliably form a metal plating layer on the outside of the transfer plate, it is especially suitable for letters, symbols, and pictures with extremely small spacing between adjacent lines. It is possible to form parallel electrical lead wires and printed wiring on the base material at minute intervals, which was impossible with the conventional hot-melt stamping method due to the risk of electrical shock, and the base material is not a rigid plate. It has the remarkable effect that even thin film materials with high flexibility can be easily formed.

Furthermore, the method of the third aspect of the present invention has the effect that a transfer material having such a remarkable effect can be obtained extremely easily.

As described above, the present invention enables the production of fine characters, codes, and
The greatest effect is that patterns such as pictures and wiring can now be easily obtained as patterns with high conductivity and metallic luster.

[Brief explanation of drawings]

In the drawings, tjS1 to 9 illustrate embodiments of the invention. Figure 51 is an enlarged view of powder coated with metal in fine powder technique, Figure 2 is a side view showing a vehicle in which the powder and resin binder are mixed in a container, and Figure 3
The figure is a partially cutaway perspective view of a transfer film on which a vehicle coating layer has been formed, Figure 4 is an enlarged sectional view of the main part of Figure tjS3, and Figure 5IIXl is a schematic perspective view showing the thermal transfer process.
Figure 6 is a longitudinal side view of the main part after transfer, Figure 7 is a schematic perspective view showing the electroless plating process, and Figure 8 (a) is a perspective view of electrical lead wires formed on the flexible eave selvage base material. FIG. 9 is a perspective view showing a printed wiring, FIG. 9 is a perspective view showing a transferred picture, and FIG. 10 is a longitudinal sectional side view showing a conventional method. In the figure, (1) is fine powder technique, (2) is metal, (3) is powder, (4) is binder, (5) is vehicle, (5a
) is the vehicle coating layer, (5b) is the patterned film, (5
c) is a metal plating layer, (6) is a transfer film, (7)
is the adhesive layer, (9) is the base material for the eaves, and (10) is the first transfer layer.
141 Figure 2 Figure 3 Figure 4 Figure 6 Figure 7 C 914 Figure 10

Claims (1)

[Scope of Claims] [1] A mixed vehicle (5) in which a metal-coated powder (3) in which a fine powder core (1) is coated with a metal (2) and a solution resin binder (4) are mixed as main ingredients. ) is coated on one side of the transfer film (6) to form a vehicle coating layer (5a). [2] Claim No. 2, wherein the fine powder core (1) is a fine powder selected from ceramic, polymer, or metal.
The transfer film according to item 1]. [3] The coating metal (2) on the fine powder core (1) is
The transfer film according to claim 1, which is a metal selected from palladium, rhodium, and platinum. [4] The transfer film according to claim [1], wherein the fine powder cores (1) have a particle size of 0.01 to 30 μm. [5] The transfer film according to claim [1], wherein the coating thickness of the coating metal (2) on the fine powder core (1) is 0.001 to 30 μm. [6] The transfer film according to claim [1], wherein the transfer film (6) is a film selected from Tetoron, cellophane... [7] The transfer film according to claim [1], wherein the vehicle coating layer (5a) on the surface of the transfer film (6) has a thickness of 0.1 to 100 μm. [8] The transfer film according to claim [1], wherein an adhesive layer (7) made of either a heat-sensitive adhesive or a pressure-sensitive adhesive is formed on the vehicle coating layer (5a). . [9] A mixture vehicle (5) containing a metal-coated powder (3) in which a fine powder core (1) is coated with a metal (2) and a solution resin binder (4) as main ingredients is used as a transfer film ( 6) coated on one side to form a vehicle coating layer (5a);
The upper vehicle coating layer (5a) is applied to the transfer mold (10
), the pattern film (5b) is transferred onto the transfer substrate (9), and the surface of the transferred pattern film (5b) is coated with the powder (3) in the vehicle (5). A transferred object on which a continuous metal plating layer (5c) is formed using the catalytic metal (2) as a growth nucleus of the plating layer. [10] The transferred object according to claim [9], wherein the transfer substrate (9) is a flexible film selected from polyester, polyimide, polyimideamide, and cellophane. [11] The transferred object according to claim [9], wherein the transfer substrate (9) is a plate selected from polyester, polyimide, polyimideamide, and cellophane. [12] Claim No. 9, wherein the transferred pattern film (5b) is a pattern film selected from characters, codes, pictures, electrical lead wires, and printed wiring pattern films.
Materials to be transferred as described in Section. [13] The metal plating layer (5c) is copper, nickel, gold,
The transferred object according to claim 9, which is a metal plating layer selected from silver, platinum, or an alloy thereof. [14] (a) Coating the fine powder core (1) with the metal (2) to form a metal-coated powder (3); (b) forming the metal-coated powder (3) and the solution resin binder (4); (c) mix the mixed vehicle (5) to form a transfer film (6);
Coat one side of the vehicle coating layer (5
(d) Immediately after the vehicle coating layer (5a) on the transfer film (6) obtained through each of the above steps, or an adhesive layer (7) formed on the surface thereof. After pressing the back side of the transfer film (6) with a transfer mold (10) which is placed oppositely on the transfer base material (9) and has a desired pattern formed on the mold surface, the transfer film (6) is pressed. (6) to transfer base material (9)
), and a pattern film (5b) responsive to the pattern formed on the mold surface of the transfer mold (10) is transferred and formed on the transfer base material (9); The pattern film (5b) formation transfer substrate (9) is immersed in an electroless metal plating solution (11), and the metal coating powder (3) on the surface of the pattern film (5b) is removed.
A metal plating layer (5c) connected in series is formed. (F) A transfer forming method for a transfer object formed through the above-mentioned means. [15] The metal plating pattern film (5c) transferred and formed on the transfer base material (9) can contain characters, codes, pictures, electrical lead wires,
[16] The electroless metal plating solution (11) may contain copper, nickel, gold, copper, nickel, gold, The transfer forming method of a transfer target according to claim 14, wherein the electroless plating solution is selected from silver, platinum, or an alloy thereof. [17] The vehicle coating layer (5a) on the transfer film (6) is transferred to the transfer base material (9) by using the fusing force due to thermal melting of the resin binder (4) in the vehicle coating layer (5a). Claim No. [14]
] The method for forming a transfer of a transfer target according to item 1. [18] The adhesive of the adhesive layer (7) formed by coating the vehicle coating layer (5a) on the transfer film (6) on the surface of the vehicle coating layer (5a) is a pressure-sensitive adhesive. A method for forming a transfer object according to claim [14]. [19] A patent claim in which the transfer type (10) is a pressure-sensitive transfer type, and the adhesive of the adhesive layer (7) applied and formed on the surface of the vehicle coating layer (5a) is a pressure-sensitive adhesive. The method for forming a transfer object according to item [14]. [20] The transfer type (10) is a thermal transfer type, and the adhesive of the adhesive layer (7) applied and formed on the surface of the vehicle coating layer (5a) is a heat-sensitive adhesive. [14] The method for forming a transfer object according to item [14].