North China Aluminium Co., Ltd. Obtained Patent of Invention

(China Aluminum Network) PS Printing Plate Black Bar Detection Method is the invention patent of North China Aluminium Co., Ltd. has obtained certificate of authority from SIPO. This is the first time for the company to obtain invention patent.

This invention patent published a black bar detection method of PS printing plate. Through alkali wash, scouring, washing, electrolysis, re-alkali wash, re-scouring and re-washing in turn can reveal the invisible black bar defects on the surface of PS printing plate, then realize the detection and judgement of those defects. Thus can largely improve the judgement of detection and reduce return and loss. Before this the company has got another 7 utility model patents already.

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