Bag and bag making apparatus

摘要: A mixing bag (4) comprising a chamber in the form of compartment (45), pocket (42) having mouth opening (44) so that it can be filled with liquid (72) to predetermined volume. The is easily ruptured when closed discharge volume into for material (70) compartment. During walls (46, 47) about serve as non-return valve bag. Apparatus making bags includes web bonding means (10), feeding (11) feed film waterproof thermoplastics from rolls (12, 13 and 14) means, via splitting (15) separator (16), take up (17) wind onto (18). (16) enables mouths made between inner whilst are seamed adjacent outer walls. apparatus forms open bottoms insertion subsequent closure.