A method of manufacturing a holographic labels

 

(57) Abstract:

The invention relates to advertising, printing, remedies securities, manufacturing labels, nameplates, labels and tags. The inventive method consists in forming a hologram image marking sign and registration relief-phase holograms of this sign by contactless deformation of the working layer of the label, applying a reflective coating, applying an adhesive coating on the reverse side of the label. The working layer of the label includes a substrate and a photosensitive thermoplastic recording layer. 5 Il.

The invention relates to advertising, printing, banking (in particular, to means of protection securities), mainly for the production of labels, nameplates, stickers and labels, bearing advertising or protective (against forgery) character.

High diffraction efficiency, low cost, relative simplicity of manufacturing technology has led to the predominant use in the manufacture of holographic labels reflective (relief phase) holograms.

A known method of manufacturing a holographic labels [1] which consists in registering the primary is s carried out by registering the secondary hologram on the positive photoresistive material, etching, production of matrix-copy with etched secondary hologram and the application of the hologram image marking symbol on the label by their contact deformation (forging) using the matrix-copy. As the substrate fundamentals of labels used metalized Mylar tape.

The disadvantages of this method include complex manufacturing technology, due to the multi-stage process of manufacturing labels and multiple copying of holograms, and poor performance, due to the presence of rewritings of the hologram and photochemical processing. In addition, the use in the manufacture of holographic labels stamping operations with matrices leads to inability to obtain single copies (small series) holographic labels due to the high cost of the process.

There is also known a method of manufacturing a holographic labels [2] which consists in forming a hologram image marking sign and registration relief-phase holograms image marking sign by deformation of the working layer labels representing deposited on the working layer reflective coating, nanoseal is closest to the invention and selected for the prototype.

The disadvantages of this method is the complexity and the low speed is determined the same as in method-similar reasons.

The technical result of the invention is to simplify the technology and improving the performance of the method.

The technical result is achieved in that the method consists in forming a hologram image marking sign and registration relief-phase holograms image marking sign by deformation of the working layer of the label, applying a reflective coating, applying an adhesive coating on the reverse side of the label, the working layer of the label is formed in a multilayer structure comprising a substrate and a photosensitive thermoplastic recording layer, forming a hologram image marking sign is carried out on the surface of the recording layer, registration relief-phase holograms image marking sign is carried out directly after its formation, the reflective coating applied to the surface of the recording layer after the registration of the hologram, moreover, the deformation of the surface labels make contactless.

In Fig. 1 is a diagram of the teachings, 3 diagram of the formation of the hologram 4 label 5 device manifestations of the hologram, 6 high-voltage source 7, a heat pipe, 8 synchronizer of Fig. 2 the label in the section before the formation of the hologram of Fig. 3 in the manufacturing process to heat manifestations of Fig. 4 after fixing the hologram before and after (Fig. 5) applying reflective coatings, where 9 reflective coating, 10 of the recording layer 11 of adhesive coating, substrate 12.

The essence of the claimed method consists in the following.

Is formed, the mark 1, the holographic label image which you want to retrieve (it can represent a three dimensional or flat banner). Illuminating the mark with the source 2 of coherent radiation, get it to a coherent image, using which, using scheme 3 formation of the hologram (for example, in the case of registration of rainbow holograms using a hologram image restored with a slit hologram (mark) on the label surface to form a hologram of the desired type.

Forming a hologram beams of coherent radiation is called at each point of the image is proportional to the intensity of radiation lokalt.E. as a working layer using a photosensitive thermoplastic layer deposited on a polymeric substrate 12 (Fig. 2). To increase the sensitivity of the recording layer before the formation of the hologram on its surface, apply a uniform electrostatic charge. Under the influence of coherent radiation is a change in the density of surface charge that converts a uniform charge in the potential relief is proportional to the intensity distribution of the radiation on the surface of the recording layer (Fig. 3). During the subsequent heat treatment emerging local changes in the surface electric field is transformed into a geometric terrain, the depth of which is proportional to the local intensity of coherent radiation, forming a hologram image marking sign.

Removing the heat load allows you to capture the geometric relief and thereby to obtain relief-phase holograms a hologram image marking sign (Fig. 4). The strain of the working surface of the label is carried out without mechanical contact, only by impulse heat.

Formirovanie taken labels, that allows you to quickly enter into registered marks changes, providing identifitsiruemosti each label (e.g., room). Drawing on the reverse side of the label adhesive coating may be carried out in a single technological process of manufacturing of labels, and after the print edition.

For a more complete description of the claimed method will give an example of its implementation in the device.

Mark 1 illuminated by the radiation source 2 coherent radiation (laser) and using scheme 3 formation of the hologram to form a coherent image of the identification mark on the recording layer 10 labels, providing exposure of the working layer. At the same time on the layer 10 of the label 4 is applied electrostatically charged by a high voltage source 6, in the discharge period which contains a label. Synchronization of processes involving charge, exposure, symptoms, and fixing the hologram is realized by means of the synchronizer 8 (unit time intervals of the output keys and gate) for modulation of the laser radiation 2. For fixation of relief-phase holograms heated after exposure to registrera is the source current, is loaded on the heat pipe 7 being in thermal contact with the label (for example, a conductive coating on the dielectric substrate, is pressed against the reverse side of the label).

After removing the heat geometric terrain, and hence the relief-phase holograms are recorded on the surface of the active layer (Fig. 4). To increase the diffraction efficiency of the recorded hologram image marking sign on the working surface of the label is applied, for example, by evaporation in a vacuum, reflective coating 9 (metallized layer). On the reverse side of the label applied adhesive coating 11, which is carried out on standard printing equipment (as well as the application of the recording layer 10) irrigation machines.

The main advantages of this method are the speed and the simplification of the manufacture of labels. This is ensured by the refusal of operations photochemical processing and immediate formation of holograms on the surface of the produced labels.

A method of MANUFACTURING a HOLOGRAPHIC LABELS, which consists in forming a hologram image marking sign and registration relief-Paysage coverage, applying an adhesive coating on the reverse side of the label, characterized in that the working layer of the label is formed in a multilayer structure comprising a substrate and a photosensitive thermoplastic recording layer, forming a hologram image marking sign is carried out on the surface of the recording layer, registration relief-phase holograms image marking sign is carried out after its formation, the reflective coating is applied sequentially to the surface of the recording layer after the registration of the hologram, and the deformation of the working layer labels make contactless.

 

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SUBSTANCE: invention relates to the field of printing. Machine of screen printing comprises device for removal of printing forms intended to remove printing form from form cylinder and to assemble printing form after connection of printing form, exposed to operation of printing forms making, to form cylinder for printing on sheet. Device to remove printing forms comprises section for storage intended to store printing form, closing element intended to close section for storage with the possibility of free opening and closing, and facility intended to block closing element in closed condition, at the same time device for removal of printing forms is arranged so that it may be extracted from screen printing machine body.

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