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Packaging bag with identification code and production method

A production method and identification code technology, applied in the field of packaging bags with identification codes, can solve the problem that the code assignment method of the packaging bags cannot satisfy the merchants, etc., and achieve the effects of firm attachment, cost reduction and energy saving.

Active Publication Date: 2016-05-11
SHANGHAI TY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing coding methods for packaging bags cannot meet the needs of merchants

Method used

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  • Packaging bag with identification code and production method

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Embodiment Construction

[0028] In order to make the creative features, technical means and objectives of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments.

[0029] Such as figure 1 As shown, a packaging bag with an identification code includes a packaging bag body 1 and a second identification code 4, the second identification code 4 is located on the inner side 22 of the packaging bag body 1, and the second identification code is connected to the packaging bag body 1. There is a transparent coating 7 between them, and the transparent coating 7 has water absorption and is attached to the inner side 22 of the packaging bag body 1 . The second identification code 4 is printed (or sprayed) on the transparent coating layer 7 by water-based ink. The second identification code 4 is covered with a protective layer 6, and the thickness of the protective layer 6 is much smaller than that required for printing the second identi...

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Abstract

The invention provides a packaging bag with an identification code. The second identification code is arranged on the inner side of the packaging bag, especially a plastic film bag or a paper bag in the field of food. The identification code is printed through water based ink. The situation that the second identification code is identified before final sale of a product can be avoided effectively. Moreover, food hygiene and safety problems in the foot packaging field can be effectively solved. In addition, the thickness of a protecting layer between the identification code and contacted food can be reduced, and the production cost is greatly lowered.

Description

technical field [0001] The invention relates to a packaging bag with an identification code. Background technique [0002] On the existing plastic packaging bags or paper packaging bags, UV printing is often used to print patterns or characters on the packaging bags. UV printing usually dries and cures inks by ultraviolet light, and inks containing photosensitizers are required to cooperate with UV curing lamps. Printed patterns or texts are usually thicker and more penetrating, that is, patterns or texts printed by UV are easier to penetrate the protective layer covering them and cause pollution to food outside the protective layer. Therefore, in the food field, especially the inner surface of the packaging bag that contacts food, UV printing is usually not allowed. [0003] Identification codes include one-dimensional codes and two-dimensional codes, especially two-dimensional codes, such as QR codes (Quick Response codes), which are often printed on product packages in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D33/00
Inventor 陈辉王利明
Owner SHANGHAI TY TECH
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