Preparation method of laser film with character holography

Abstract

The invention relates to the technical field of laser films, and discloses a preparation method of a laser film with character holography. The preparation method comprises the following steps that 1, a holographic character image is designed and manufactured through pre-printing software Photoshop or Coreldraw; 2, a thin-layer silver surface is generated on the surface of a photoresist master mask by using a chemical spraying method; 3, after a residual photosensitive layer on a nickel plate is cleaned with sodium hydroxide, the master mask cast through the silver-surface nickel plate serves as a grandmother plate, the master mask cast through the grandmother plate serves as a mother plate, and a molded plate is cast through the mother plate; 4, on a makeup machine, a plastic holographic dry plate with the required size is obtained from the minimum unit character patterns in a flat-pressing manner; 5, fine embossment type interference fringes on the holographic molded working nickel plate are transferred to the surface of a holographic material, and the laser film with the character holography is prepared. and 6, compounding is conducted. According to the preparation method of the laser film with the character holography, the manufacturing process is simple, the manufacturing cost is low, the process is simple, and a processed product is not prone to damage.

Description

technical field [0001] The invention relates to the technical field of laser film, in particular to a method for preparing a laser film with text holography. Background technique [0002] With the wide application of laser film in packaging materials in the fields of tobacco and alcohol, food, medicine and cosmetics, laser film is divided into slit laser film with text hologram and seamless laser film with plain surface and other effects. The main process of the laser film with text holography is to use the film plate to directly press the information on the base film and then coat the corresponding medium. The film plate is wrapped on the surface of the steel roller by a flat nickel plate, so that the nickel plate is stitched together. There will be a seam at the place, resulting in the final pressed laser film also has a corresponding seam. The seamless laser film of the plain surface or light column adopts the second film pressing. After the normal film is pressed once, ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for preparing a laser film with a text hologram, which can solve the problem that the normal film pressing process of an existing method for preparing a laser film with a text hologram uses a nickel plate as a template. Pressing, the temperature during the film pressing process is too high at about 150°C, so the pressed base film is easy to deform or wrinkle; the speed of the traditional film press is too slow, generally 45m / min, which seriously affects the production efficiency; and the traditional nickel plate The production process is complex, the quality requirements are very strict, the production cost is high, the production technology is high, the process is complicated, and the product is easily damaged after processing; the invention can reduce the film pressure temperature and increase the film pressure speed, thereby improving the fastness of the base film High degree of clarity and clarity, improve production efficiency, can realize seamless laser film with text holography, and the production process is simple, the production cost is not high, the process is simple, and the product is not easy to damage after processing

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