Protective label to determine the authenticity of the document or product, the way of obtaining and protected document labeled

 

The present invention relates to the field of security documents or articles by application of optically active element or label to determine authenticity. Label to determine the authenticity of the document or article contains embossed, transparent plastic film to obtain at least one diffracting mesh and a textured surface at least partially covered with a metal layer. Embossed film contains the first zone is capable of producing a rainbow effect when the first orientation of the label with respect to the direction of illumination and to provide the disappearance of this rainbow effect when orientation marks are perpendicular to the first orientation. The second zone, in which the removed metal coating and a coating of dielectric material (ZnS) and which is able to be colored in the first color when the first orientation marks and painted in the second color, different from the first orientation labels, perpendicular to the first orientation. Thus, we achieve a simple and reliable test to ensure a high degree of protection. 3 N. and 9 C.p. f-crystals, 6 ill.

The present invention relates to the field of security documents or articles by any different means of determining the authenticity with the use of a diffracting labels, in particular, holographic elements. Such labels are difficult to fake, and it allows you to complicate the work of potential falsifiers.

Optical effects are known from the prior art means of determining the authenticity, are, as a rule, cartoon effects, the reliability of which is not always possible to verify. In addition, these multiplier effects occur under very specific conditions of illumination and observation, and not enough experienced inspector during the inspection may have doubts about whether or not corresponds to the observed multiplier effect (sometimes difficult to observe due to poor positioning of the controlled subject or bad light) multiplier effect inherent in the genuine thing.

The aim of the present invention is to eliminate this drawback by proposing an optical labels, allowing simple and reliable test while ensuring a high degree of difficulty fake.

This goal is achieved by the fact that the label to determine the authenticity of the document or article containing an embossed transparent plastic film for men is receiving in the form of a metallic layer, according to the invention, made with embossed film containing the first metallized area capable of producing a rainbow effect when the first orientation of the label with respect to the direction of illumination and to provide the disappearance of rainbow effect when orientation marks in the perpendicular direction to the first orientation, and a second area with remote pre metallic coating, and further the coating layer made of dielectric material with a high coefficient of optical refraction, are able to be colored in the first color when the first orientation marks and painted a second, different from the first color when the orientation perpendicular to the first orientation.

Each of the two regions produces identifiable information.

Optimally, so that the first direction corresponds to the orientation at which the observer and the light source are located in the plane perpendicular to the surface of the label.

The second area is an area with a coating of dielectric material with a large refractive index.

The invention also concerns the method of obtaining the label to determine the authenticity of the document or article, characterized in that it contains a stage stanova the closure of the pressed film and the stage of coating the dielectric material.

Preferably, the method contains the additional step of coating.

According to a separate variant of the implementation stage of removal of the metallic coating is carried out by masking parts of the first zone using varnish, after which the label is passed through a chemical bath. It is possible to use other methods of removing metallic coatings known from the prior art.

More in detail the invention is illustrated below by the description of non-limiting example of implementation with reference to the accompanying drawings, in which:

Fig.1 depicts a label in the first orientation;

Fig.2 - label in the second orientation;

Fig.3 - section a-a in Fig.1;

Fig.4 - same as in Fig.3, an implementation option, where you get this film for hot marking or film for lamination;

Fig.5 and 6 embodiments of the optical tag according to the invention.

In Fig.1 and 2 show views of a label when it is first orientation (observation in the "twelve o'clock") and in the second orientation (viewing angle 90). The label contains the first peripheral area 1 having a metallic appearance and is easily controlled with a rainbow effect. The Central zone 2 has a homogeneous crackerboy appearance. Peripheral zone 1 loses its rainbow effect and takes a dim, not scattering. The Central zone 2 dramatically changes color and becomes, for example, red. Such effects are well traceable and leave no doubt in the controller.

In Fig.3 shows a section along the line AA. The label is made of polyester embossed stamping film 3, known in obtaining holograms or diffracting structures used to determine the authenticity of documents. The pressed surface has a coating in the form of metal deposited in the vacuum layer. Material for metallization can be, for example, aluminum.

Such metallized layer is partly removed with the expectation of saving it only in the peripheral zone 1 label in the form of metallized sections 4 and 5.

At site 6, the corresponding zone 2 with variable color, remove the metallic coating method, which consists in masking metallized surface, except for the zone in which it is necessary to remove the metallic coating, with protective varnish. Then the label is dipped into the bath for the destruction of the metal layer in areas not protected with varnish.

After cleaning the surface of these sites hold a new stage of coating in UCLA with high optical refractive index, for example, zinc sulfide (ZnS).

The resulting set cover then cling film 7, which is applied, for example, obkleivanie.

Received a label can be attached to the protected document or product, for example by gluing.

It may also be secured between the subject matter or the document and the fixing film protecting the object or document, to identify any attempts to remove this tape.

In Fig.4 depicts an implementation option, where you get this film for hot marking or film lamination. Nail stamping film 3 is applied on the detachable layer 10, which in turn is located on the transparent film 11, for example, polyester.

In Fig.5 and 6 represent embodiments of the optical labels, according to the invention. In these embodiments of the invention the zones 20, 30, depicted as a dark color, can be formed either metallized area or zone in which the metal coating is removed and in which the coating of dielectric material.

The label may contain in addition a line 25 from microbook.

Claims

1. Label to determine the authenticity of the document or article containing an embossed transparent plattensee least partially covered with a metal layer, characterized in that the embossed film contains the first zone is capable of producing a rainbow effect when the first orientation of the label with respect to the direction of illumination and to provide the disappearance of this rainbow effect when orientation marks are perpendicular to the first orientation, and a second area in which the removed metal coating and a coating of dielectric material (ZnS), and which is able to be colored in the first color when the first orientation marks and painted in the second color, different from the first orientation labels, perpendicular to the first orientation.

2. Label under item 1, characterized in that the first zone is a peripheral surface around the second zone, each of the two regions produces identifiable information.

3. Label under item 1 or 2, characterized in that the first direction corresponds to the orientation at which the observer and the light source are located in the plane perpendicular to the surface of the label.

4. Label under item 1, characterized in that the first area is metallized area.

5. Label under item 1, characterized in that the second area is an area with a coating of dielectric material.

6. Label according to any one of the preceding paragraphs, different then any of the preceding paragraphs, characterized in that the coating of nail stamping contains detachable layer and the transparent film.

8. The method of obtaining the label to determine the authenticity of the document or article, characterized in that it includes a stage of forming the transparent film, stage metallization of the pressed film, stage partial removal of the metal coating the pressed film and stage coating of a dielectric material.

9. The method according to p. 8, wherein the dielectric material is a transparent dielectric material with a high optical refractive index.

10. The method according to p. 8 or 9, characterized in that it contains the additional step of coating or laminating adhesive.

11. The method according to any of paragraphs.8-10, characterized in that the stage of removal of the metallized coating is carried out by masking parts of the first zone varnish with subsequent processing of the received label in the chemical bath.

12. Protected document, executed in the form of a substrate with a deposited optical label containing the embossed film, characterized in that the embossed film contains the first metallized area capable of producing a rainbow effect when the first orientation of the label with respect to N. the first orientation, and the second area, is able to be colored in the first color when the first orientation of the label and change the color to a second, different from the first orientation labels perpendicular to the first orientation.

 

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Valuable document // 2203188
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FIELD: protective marks.

SUBSTANCE: method for making protective marks on carrier having first surface and second surface opposite to first surface, includes sealing of first surface with high-resolution varnish, carrier is then electrolyzed and then washed and dried.

EFFECT: higher level of protection of forgery.

3 cl, 25 dwg

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