Method for direct ink jet printing of variable information

Abstract

the invention relates to a method for direct ink jet printing of variable information. According to the method, the phenomenon that a two-dimensional code on a packaging container is read in an unauthorized mode before a consumer purchases a commodity can be avoided, the urgent need of carrying out ink jet printing of a code on the bottom of the inner side of a bottle cap or a concave and deep container can be met, and meanwhile, the safety of food can be considered. The method is characterized by comprising the steps that a background image of an optical readable computer graphic code is formed at a low-lying part of the concave and deep container through a spraying mode or an ink jet printing mode; coding of the optical readable computer graphic code is directly carried out on the low-lying part of the concave and deep container through a continuous ink jet printing device; and after ink jet printing of the optical readable computer graphic code is carried out on the low-lying part of the concave and deep container, a protective film is sprayed. The method has the advantages that high-speed and large-scale coding can be realized on common bottle caps or concave and deep containers which are not likely to be subjected to coding.

Description

【Technical field】 [0001] The invention belongs to a method for direct coding of variable information in the field of image processing. 【Background technique】 [0002] With the concrete application of the concept of the Internet of Things, people finally see clearly that it is a de-conceptual practicability with less investment and quick results between popular mobile phone reading, connecting products to the Internet to realize product promotion, public anti-counterfeiting identification of products, and big data analysis of products. technology. [0003] Therefore, no matter what the product is, it has become a trend to realize public mobile phone identification through variable information coding. However, how to code products with high efficiency and low cost has become a subject of attention. [0004] For this reason, there have been many publications on patents related to this aspect in the past year. In China, the German coding professional company Domiro published a ...

AI Technical Summary

Problems solved by technology

[0017] The first purpose of the present invention is to solve the problems of low coding efficiency of lasers, large restrictions on coding materials, and low coding quality that is not easy to identify, especially for bottle caps that have been produced, especially for brand companies. A product that cannot be changed, and proposes a method that solves all the problems caused by laser coding through the direct coding process without changing the existing bottle cap material and structure

[0019] The third purpose of the present invention is: propose a kind of method that solves the difficult problem that jet printing ink can not contact beverage or food by spraying protective film

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