1 results about "Batch Number" patented technology

A batch traceability information management method for garbage bag products involves installing a laser engraving device at the film feeding end of the garbage bag production line. The laser etches a micro-QR code pattern, composed of a dot matrix, onto a specific area of ​​the film surface. Embedded within this micro-QR code is initial coding data containing the raw material batch number, production date, and a unique production line identifier. Each pixel of the micro-QR code is less than 0.1 mm in diameter, and the spacing between adjacent pixels is 0.2 mm, forming an invisible identification layer. This invention effectively avoids the risk of failure caused by wear, dirt, or human intervention, as with traditional labels, by using a high-energy laser beam to etch a micro-QR code pattern on a specific area of ​​the film surface. The initial coding data includes the raw material batch number, production date, and unique production line identifier, ensuring the inseparability of product identity and raw material origin.