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Improved printing of security devices

A kind of safety equipment and equipment technology, applied in printing, printing process, printing of special varieties of printed matter, etc., can solve problems such as unclear images, blurring, etc., and achieve the effect of reducing ink volume, avoiding use, and reducing impact

Inactive Publication Date: 2016-03-30
LUMENCO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dot gain in the printed interlaced image behind the lenticular lens causes overfilling of the interleaved channel or image and results in a blurry or unclear image, which is not acceptable in commercial use

Method used

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  • Improved printing of security devices
  • Improved printing of security devices

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Experimental program
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Effect test

Embodiment Construction

[0059] A method for addressing point gain in interleaved images is disclosed. The method includes a pre-printing operation of selectively blanking image data of pixels in different frames as a means of compensating for the dot gain phenomenon that occurs when printing these images.

[0060] figure 2 The steps involved in evaluating the dot gain for preparing a composite interlaced image for lenticular printing are described in overview by means of a flowchart. A manual image preparation process was performed, followed by analysis of the data from the manual image preparation. First, in step 10, a "fingerprint" of the impression is taken by using a backing plate to create a printing plate or cylinder. Next, in step 20, the substrate is printed with a series of lines, spots, interlaced images and other images based on the artwork generated in step 10.

[0061] The substrate is then microscopically analyzed, and then in step 30 the original screenshot of the file and / or the p...

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Abstract

A computer-implemented method of preparing a digital image file or files for lenticular printing involves selectively blanking pixels of multiples images that are or are to comprise a composite interlaced image file for lenticular printing, such that the blanked pixels are distributed amongst the multiple images in successive complementary pixel sets distributed across the composite interlaced image file. As a result, the data integrity of the file is maintained, and the multiple images are represented in the composite interlaced image file without loss of information.

Description

technical field [0001] The present invention relates to an improved printing technique lenticular for images, especially for lens printing (ie printing of a set of images for use with lenticular lenses). Background technique [0002] The printing process, whether lithographic or gravure, provides a higher volume of ink than is needed or desired for printing the substrate. While the file that produces the artwork to be printed may be "perfect" and the plate or cylinder accurately represent the file, when the print is transferred from the plate to the blanket in lithography and then to the printing substrate, There is "gain" or unwanted distortion, which is called spot gain or imprint gain in various contexts. [0003] Dot gain (also known as tone value gain) is a phenomenon in lithography and some other forms of printing that causes printed material to appear darker than intended. Gain is caused by halftone dots (ink spreading outside the intended boundary) growing in the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M3/14
CPCG03B35/24B41M3/14B42D25/342G02B3/005G06K15/1868G06K15/1881
Inventor H·A·珀垃斯 索托M·A·雷蒙德
Owner LUMENCO LLC
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