JPS6123187A - Copy preventive film - Google Patents

Abstract

PURPOSE:To obtain a film which is less hard to recognize recording information when adhered to a document surface where information is recorded, but has large copy prevention effect by using a transparent film colored in red, yellow, and blue. CONSTITUTION:This copy preventive film is formed of the transparent film colored in red by 89-39wt%, yellow by 10-60%, and blue by 20-1%. A coloring range is within the area (hatched) determined by points A-D. Namely, the point A is colored in 70% red, 10% yellow, and 20% blue and the point B is colored in 89% red, 10% yellow, and 1% blue; and the point C is colored in 40% red, 40% yellow, and 20% blue and the point D is colored in 39% red, 60% yellow, and 1% blue.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Industrial Application Field The present invention relates to a copy protection film used to prevent copying by electronic copying or photography.
In particular, information is recorded by gluing characters, figures, etc. on the surface of paper or film (hereinafter referred to as information-recorded documents) written by handwriting, printing, copying, etc., or on the surface of the film itself. The present invention relates to an anti-copying film that can enhance the anti-copying effect by doing so.

(2) Problems to be solved by conventional techniques and inventions Recently, as shown in Public Utility Model Publication No. 138670/1980, a plastic film coated with metal vapor deposition is adhered to the surface of a document on which information is recorded. was considered as an anti-copying film, but the document to which this film was adhered had the disadvantage of being extremely unsightly as the recorded information was visible through the metal-deposited film. This tendency was severe when the transmittance was lowered.

An object of the present invention is to minimize the difficulty in visually recognizing recorded information when it is adhered to the surface of a document on which information is recorded.
The present invention provides a copy-preventing film that has a relatively large copy-preventing effect. Another object of the invention is to provide an anti-copying film that is capable of recording information on its own film surface. Still another object of the present invention is to
To provide a copy prevention film that is inexpensive and easy to manufacture.

(3) Means for solving the problem In accordance with the above object, the present invention provides a copy prevention film comprising a transparent film colored with 89% to 39% red, 10% to 60% yellow, and 20% to 1% blue. It is.

If the above-mentioned colored range in the present invention is shown in the drawing, the colored range is within the area (indicated by diagonal lines) surrounding point A, point B, point 0, and point D. That is, the coloring at point A is 70% red, 10% yellow, and 20% blue; the coloring at point B is 89% red, 10% yellow, and 1% blue; and the coloring at point 0 is 40% red, 40% yellow. %, blue 20%, D
Coloring at points is red 3991), yellow 60%, blue 1
% φ Further, the anti-copying film of the present invention includes the following.

(1) A transparent film colored with 89% to 39% red, 10% to 60% yellow, and 20% to 1% blue, and an adhesive coated on the back side of the transparent film to form a transparent layer; An anti-copying film comprising a release paper releasably attached to a surface coated with the adhesive.

(2) Consisting of a transparent film colored 89% to 39% red, 10% to 60% yellow, and 20% to 1% blue, and a transparent metal thin film deposited on the back and surface of the transparent film. Anti-copying film. In addition to aluminum, the metals used include gold, silver, copper, nickel, chromium, and zinc.

Further, it is preferable that the gold 88 film has a visible light transmittance in the range of 10 to 70%.

(3) A transparent film colored with 89% to 39% red, 10% to 60% yellow, and 20% to 1% blue, and a transparent gold Fk'R film deposited on the back side of the transparent film. and a release paper releasably attached to the transparent layer on the metal thin film surface.

(4) Contains a transparent film colored with 89% to 39% red, 10% to 60% yellow, and 20% to 1% blue, and a fine particle matting agent coated on the surface of the transparent film to form a transparent layer. Anti-copying film consisting of a thin resin film.

The resin containing the fine particle matting agent has a particle size of 0.00, for example.
For example, 0.07 to 0.016 ton of silica
6% by weight of organic solvents (e.g. alcohols, ketones, chlorinated hydrocarbons, etc., or a mixture of two or more) soluble preolefins, acrylic acids, polyvinyl chloride, etc. Resin is used.

(6) Contains a transparent film colored with 89% to 39% red, 10% to 60% yellow, and 20% to 1% blue, and a fine particle matting agent coated on the surface of the transparent film to form a transparent layer. With resin thin film.

An anti-copying film comprising a transparent metal thin film deposited on the back surface of the transparent film.

(4) Effects and Effects of the Invention The anti-copying film of the present invention can provide a sufficient anti-copying effect without applying a metal vapor deposition film, and is extremely easy to manufacture since it is only necessary to color the film. It has the advantage of being inexpensive. Furthermore, when a metal vapor-deposited film is applied to the back side of the anti-copying film of the present invention, the anti-copying effect is not inhibited even if the visible light transmittance of the metal-deposited film is increased, and the anti-copying effect is further improved due to the synergistic effect. At the same time, the difficulty of viewing the recorded information is reduced.

In addition, in the coloring range of the anti-copying film of the present invention, if 89% or more of red is mixed, if 20% or more of blue is mixed, or if 60% or more of yellow is mixed, the recorded information will be lost. It becomes difficult to see through, and if 39% or less of red is mixed, 1% or less of blue is mixed, and 10% or less of yellow is mixed, no anti-copying effect can be obtained.

(5) Example 1 An adhesive was applied to the back side of a transparent polyester film colored 60% red, 35% yellow, and 50% blue to form a transparent layer, and the adhesive was adhered to the surface of information recording paper. However,
Not only is it less ugly to see through the recorded information, but when it was electronically copied, the electronic copy paper was completely darkened and the recorded information could not be deciphered.

Example 2 An aluminum metal film with a visible light transmittance of 70% was deposited on the back side of a transparent polyester film colored with 60% red, 39% yellow, and 1% blue, so that a transparent layer was formed on the metal film surface. When adhesive was applied and adhered to the surface of the information recording paper, the recorded information could be seen through, making it less unsightly, and when it was electronically copied, the entire electronic copy paper turned black and the recorded information could not be deciphered. Ta.

Example 8: An average particle size of 0.0 was applied to the surface of a transparent polyester film colored with 50% red, 40% yellow, and 10% blue.
When information was recorded on the surface of a paper coated with a polyolefin resin alcohol solution containing 2% 1 micron silica and then electronically copied, the entire electronic copy paper turned black and the recorded information could not be deciphered.

[Brief explanation of the drawing]

The drawing is a graph showing the coloring range of the anti-copying film of the present invention. Agent Patent Attorney Ya Watanabe -Ojiyi~ Seven @ Time

Claims (1)

[Claims] 1. Red 89% to 39, yellow 10% to 60%, blue 20
Anti-copying film made of a transparent film with a coloring of 1% to 1%. 2. Red 89% to 39%, Yellow 10% to 60%, Blue 2
A transparent film with 0% to 1% coloring, and an adhesive coated on the back side of the transparent film to form a transparent layer;
An anti-copying film comprising a release paper releasably attached to a surface coated with the adhesive. 3. Red 89% to 39%, yellow 10% to 60%, blue 2
An anti-copying film comprising a transparent film colored 0% to 1% and a see-through metal thin film deposited on the back side of the transparent film. 4. Red 89% to 39%, Yellow 10% to 60%, Blue 2
A transparent film with 0% to 1% coloring, a transparent metal thin film deposited on the back side of the transparent film, an adhesive layer coated on the metal thin film surface to form a transparent layer, and the adhesive layer. An anti-copying film consisting of a release paper removably attached to the coated surface. 5. Red 89%-39%, yellow 10%-60%, blue 2
An anti-copying film comprising a transparent film colored 0% to 1% and a thin resin film containing a fine particle matting agent coated on the surface of the transparent film to form a transparent layer. 6. Red 89% to 39%, Yellow 10% to 60%, Blue 2
A transparent film with 0% to 1% coloring, a resin thin film containing a fine particle matting agent applied to the surface of the transparent film to form a transparent layer, and a transparent metal thin film deposited on the back surface of the transparent film. Anti-copying film consisting of.