Packaging pouch with food flow properties

摘要

In a packaging pouch made of a flexible mono or multilayer film for packaging viscous jelly and/or gravy matrix food, in which a thermo cycle such as retort, pasteurisation, hot filling or aseptic conditions are applicable, the surface of a layer of the film forming the pouch inner walls or a surface coating on the film being in contact with food comprises a substance having the effect that the surface tension of the layer or the surface coating on the layer is 24 mN/m or less and the pouch inner walls being in contact with food exhibit easy flow properties. The substance comprises a graft polymer having a polyolefin based acrylic copolymer backbone with the general structure
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ [CH 2 CRCOO(CH 2 )pCH 3 ] x [CH 2 CR 1 COO(CH 2 ) 2 (CF 2 ) q CF 3 ] y
with R = H, CH 3 ; R 1 = H, CH 3 ; 0 < p < 35; 0 < q < 15; 40 > y/x > 0.03.