LOT CODE AND EXPIRATION DATE INSPECTION

Meet label requirements and ensure consumer safety

Cognex in-sight reading date-lot code on food packaging on conveyor belt

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Date and lot codes, batch codes, and expiration date codes are required on food and beverage products to identify when and where a product was made. Items are marked with these codes early in production for quality control and traceability. These codes often combine 1D symbologies and plain text to encode batch and manufacturing date information. Optical character recognition (OCR) and optical character verification (OCV) are used for reliable process control, helping food and beverage manufacturers meet labeling requirements and ensure consumer safety. Quality inspections must verify that the codes are present and printed correctly to ensure traceability and more easily manage product recalls.

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In-Sight vision systems with OCRMax technology detect the presence or absence of lot codes and expiration date codes and verify that their chain of numbers and letters is correct. For challenging codes, including laser-engraved, dot peen, or chemically-etched DPM text, Cognex AI-powered OCR and OCV tools ensure codes are accurately read and verified. These tools decipher deformed, skewed, and poorly etched characters using OCR and OCV. The pre-trained, omni-font library identifies most text without additional programming or font training.

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