초록 ▼

Carton liners are used in freezing frames for the preparation of large frozen blocks of fresh food material, e.g. fish fillets. The liners have a lid with skirt flaps to be closed upon filling of the liner, and care should be taken that the lid flaps be located at the outsides of the liner walls ins

Carton liners are used in freezing frames for the preparation of large frozen blocks of fresh food material, e.g. fish fillets. The liners have a lid with skirt flaps to be closed upon filling of the liner, and care should be taken that the lid flaps be located at the outsides of the liner walls inside the freezing frame, as they may otherwise be embedded in the material to be frozen and thus disturb the regularity of the frozen block material. The same applies to corner flaps which, already by the mounting of the liner, should be folded to assume an exterior position. According to the invention, in order to ascertain a correct mounting and closing of the liners once they have been removed from the freezing frames, such liners are used which are provided with printed marking on those outside area portions that are to be covered by exterior liner/lid flaps, and the closed liners are inspected for detection of any visible marking, which will be indicative of a potentially defect block product.

대표청구항 ▼

[ I claim:] [1.] Method of detecting an incorrect mounting or closing of packings of the carton liner type as used for packing food products to be frozen in freezing frames, these frame liners comprising a bottom part with erectable wall flaps and a lid part with lid skirt flaps to be located at the

[ I claim:] [1.] Method of detecting an incorrect mounting or closing of packings of the carton liner type as used for packing food products to be frozen in freezing frames, these frame liners comprising a bottom part with erectable wall flaps and a lid part with lid skirt flaps to be located at the outside of the corresponding wall flaps in correctly closed packings, characterized in using for the packaging carton liners provided with a colored or otherwise visually differentiated marking (24, 25, 26) on at least some of such sub areas, such as sub areas of the outsides of the innermost liner wall flaps (6, 8), which have to be externally covered by other portions of the liner, e.g. by lid skirt flaps (4, 16) and/or corner flaps (18, 20) and, after deframing of the frozen packings, effecting inspection of the packings so as to respond to a detection of any said marking being exposed on the packings.