(57) A flexible container (1) for transporting and storing bulk goods comprises an outer
sack (2) of a strong and load bearing material and an inner impervious sack (3) which
is loose initially. A pressure sensitive adhesive (5) has been applied onto one or
more pairs of corresponding adhesive zones (4, 7. 8) on at least one of the opposing
sides of the sacks (2, 3). Subsequently, the pairs of corresponding adhesive zones
have been sealingly pressed together about the adhesive (5). The adhesive presents
such a low inner cohesion force that the pairs of corresponding adhesive zones (4,
7, 8) can be completely or partially separated when the inner sack (3) has expanded
within the outer sack (2) by blast air or through filling in of bulk goods. The cohesiveness
of the adhesive (5) is of such a magnitude that the adhesive connection between the
outer sack (2) and the inner sack (1) when the latter is pressed towards the yet uncovered
pressure sensitive adhesive (5) on the adhesive zones (4, 7, 8) at the termination
of its expansion is capable of transferring the forces which the inner sack (3) is
subjected to during the filling or emptying of the container (1) to the outer sack
(2). In this manner the inner sack is not torn loose from the outer sack.
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