Production process of laser holographic film without color difference, plate seam and interference line

Abstract

The invention relates to the technical field of laser holographic films, in particular to a production process of a laser holographic film without color difference, a plate seam and an interference line. The production process comprises the following steps that 1) a single-plate roller is adopted, a holographic plain nickel plate is arranged on the peripheral side of the single-plate roller in a sleeve mode, then a rubber roller is adopted and the rubber roller is enabled to be tangent to the side surface of the single-plate roller sleeved with the holographic plain nickel plate; 2) the holographic film waiting for laser treatment passes through a gap between the rubber roller and the single-plate roller, meanwhile, the holographic film waiting for laser treatment is introduced into a tension roller, and the holographic film is led to an output port of the holographic film through the tension roller; and 3) the single-plate roller is heated to enable the single-plate roller to expand,meanwhile, the single-plate roller is started, the rubber roller rotates and the holographic film conveyance is started, the holographic plain nickel plate on the single-plate roller is enabled to carry out laser engraving on the holographic film so as to obtain the laser holographic film. The production process has the advantage of easiness in operation.

Description

technical field [0001] The invention relates to the technical field of laser holographic film, in particular to a production process of a laser holographic film without color difference, plate seam and interference pattern. Background technique [0002] In the prior art, the production methods of laser holographic PET, OPP, PVC films, such as figure 1 As shown, there is a double-version roll 1, and the double-version roll 1 is pasted with a holographic panel 2, and the double-version roll 1 is filled with hot and cold oil 3, and the holographic film 4 to be lasered is sequentially laminated by the double-version roll 1 laser. [0003] However, there are the following defects in the overmolding method of the above-mentioned double version rollers: 1. In order to avoid the generation of interference lines, the holographic nickel plate attached to the first version roller and the holographic nickel plate attached to the second version roller are inclined at least 5-10° , that ...

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Problems solved by technology

[0003] However, there are the following defects in the overmolding method of the above-mentioned double version rollers: 1. In order to avoid the generation of interference lines, the holographic nickel plate attached to the first version roller and the holographic nickel plate attached to the second version roller are inclined at least 5-10° , that is, the first version must be tilted 5° relative to the second version when cutting the version to overcome the interference lines in the overlapping area, so that the inclination angle needs to be accurately measured during mass production, otherwise the inclination angle will increase interference if it is too large or too small Texture; 2. In the prior art, because the structure of the two plate rollers uses cooling oil pipelines to cool the lamination seam of the first plate roller and the second plate roller, the laser effect in the excessive area of ​​the plate seam has obvious black shadows and plate seams The deformation and flattening of the film in the excessive area is poor, especially OPP and PVC materials with low temperature resistance are more prone to deformation and dead wrinkles and cannot be mass-produced; 3. If the holographic nickel plate used by the two plate rollers is exactly the same, There will be interference lines in the overlapping area

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