Detection method for preventing ink from falling off from zip-top can

Abstract

The invention discloses a detection method for preventing ink from falling off from a zip-top can. The detection method comprises the following steps of S10, detecting raw materials; S20, conducting smoothness detection: conducting smoothness detection on the zip-top can cleaned by a can cleaning machine, so that the smoothness of the cleaned zip-top cans is ensured to meet the requirement; S30, conducting temperature control: in the production process, monitoring in real time and controlling the temperatures of white primer drying, color printing drying and inner coating drying processes to be within a preset range; S40, conducting thickness control: controlling the final can body thickness of the zip-top can within a preset range in the production process; S50, testing the adhesive force; and S60, isolating and tracing defective products. According to the detection method for preventing ink from falling off from the zip-top can provided by the invention, raw materials and zip-top cans are detected before printing ink printing, so that the quality of the raw materials and the smoothness of the zip-top cans are qualified; temperature and thickness control is matched, so that printing ink is ensured to be firmly attached to the zip-top cans before necking is conducted, and the printing ink is prevented from falling off after necking is conducted; and timely isolation and process backtracking can be realized, so that more printing ink is prevented from being attached to the unqualified zip-top can flowing necking process.

Description

technical field [0001] The invention belongs to the technical field of pop can production, and in particular relates to a detection method for ink drop-off prevention of pop cans. Background technique [0002] With the increasing requirements of consumers for food packaging, the requirements for the quality and appearance of products in the can industry are also getting higher and higher, and the requirements for on-site process control at the can manufacturing end are becoming more and more stringent. At present, the can production line in the industry is generally prone to the problem of ink falling off after the product is necked and flanged during the production process. This is mainly caused by the processes of can washing, printing and drying. This quality defect is mainly related to the production process. There is a relatively large relationship between the technical parameters of the process, the sanitation of the machine and the temperature control of the oven. Th...

AI Technical Summary

Problems solved by technology

[0003] At present, the canning industry generally only takes samples of the finished cans, simulates the pasteurization at 68°C or high-temperature cooking at 121°C in the filling plant, and then conducts the cross-cut test of the paint film to verify the ink adhesion of the cans. For can washing, printing , Whether the drying process and process sanitation have an impact on the ink adhesion, currently there is no complete set of methods to prevent ink falling off in advance in the industry

[0004] Therefore, need a kind of new technology to solve the problem in the prior art that the ink comes off after the necking and flanging of the product

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