| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to flexible packages, particularly, to flexible laminate tubes with sealed overlapped edges. Said tube comprises laminate and sealing tape. Laminate has at least two layers, i.e. inner and outer layers. Outer and inner layers are open and sealed. Laminate are folded so that two lengthwise opposite edges are overlapped to make a hollow structural element. Sealing tape comprises at least first and second layers. First layer seals the laminate inner layer while second layer seals laminate outer layer. Sealing tape is fitted between two lengthwise opposite overlapping laminate edges so that first layer faces said inner layer while second layer faces to seal two opposite lengthwise edges to form tube structural element.EFFECT: hard and reliable flexible tubes from various laminates.24 cl, 9 dwg |
