LIQUID FOOD AND WINE STORAGE BLADDER WITHIN A CONTAINER

摘要

Container for bulk storage of liquid foods and wine comprising a liquid-tight bladder to contain the stored liquid having a filling port (13) for filling and emptying and a venting port (12) for venting any overfill, gas or head space air, a stainless steel tank (2) containing supporting liquid of similar density to the liquid in the bladder, control means or ballast weight (8) to control the attitude of said bladder, support means (21) to prevent the walls of said bladder from drifting into and closing off the filling port during emptying. The bladder can be provided with a porous filter-cloth infusion bag (20) with wood or oak chips. The bladder has an external polyamide reinforcing layer and ethanol barrier, at least one oxygen barrier layer of EVOH or PVDC or metallised PET, and an inner water seal layer of polyethylene.