SHEET MATERIAL FOR MAKING PACKS FOR FOOD PRODUCTS AND PACKS MADE OF SUCH MATERIAL

摘要

FIELD: food industry; packing. ^ SUBSTANCE: proposed sheet material for food products has uninterrupted row of optically detectable marks, each mark having first and second lengths parallel to each other and perpendicular to direction of material feeding, and inclined length located between parallel lengths to form broken mainly, Z-shaped line which can be used to determine position of material, both in direction of feeding and in perpendicular direction. ^ EFFECT: improved quality of packs and speed of pack making. ^ 15 cl, 5 dwg