FIELD: packaging industry.
SUBSTANCE: bag is made of several layers of bag paper, connected using adhesive to form the tube and includes a bottom and a top formed by folding the edges, side surfaces with lateral folds and a charging valve. The bottom and the top of the bag are additionally reinforced with reinforcing paper strips, and the lateral fold is a vertical crease that passes into the triangular creases, adjacent to the bottom or the top of the bag. At that the charging valve is made in the form of glued paper tube which is glued into the top of the bag, and the end of the charging valve should be beyond the boundary of the lateral fold.
EFFECT: invention provides a simplified design while maintaining the necessary tightness.
3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| 0 |
|
SU2202A1 | |
| 0 |
|
SU20438A1 | |
| PAPER SACK | 1992 |
|
RU2067546C1 |
| BAG | 2015 |
|
RU2682428C2 |
| BAG WITH WALL DESIGNED TO DISSOLVE IN MOIST ENVIRONMENT AND USE OF BAG AS CEMENT BAG | 2011 |
|
RU2561021C2 |
| BAG AND METHOD OF ITS EMPTYING | 2009 |
|
RU2492126C2 |
| PACKAGE FOR FREE-FLOWING BULK MATERIAL | 0 |
|
SU1830034A3 |
| BLANK FOR MAKING PACKAGE SHAPED AS STRAIGHT-ANGLE PARALLELEPIPED | 0 |
|
SU1503679A3 |
| MULTILAYER PAPER SACK | 2007 |
|
RU2373122C1 |
| PACKAGE FOR POISONOUS CHEMICALS MADE OF POLYMERIC MATERIAL | 0 |
|
SU1083904A3 |
