FIELD: soft packing for loose materials. SUBSTANCE: sack is made of several layers of sack paper. Intermediate layers are shortened in sack height at one or two sides, and are placed between longer outer layers. Either all intermediate layers are shortened at both sides, or some intermediate layers are shortened and others are left long and alternate with shorter layers at both sides or layers shortened at two sides alternate with layers shortened at one side, some layers are shortened at sack bottom side and alternate with layers shortened at sack neck side. EFFECT: enhanced quality of packing. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PAPER BAG FOR PACKAGING BULK MATERIALS | 2011 |
|
RU2497733C2 |
| 0 |
|
SU2202A1 | |
| SACK FOR LOOSE MATERIAL, METHOD OF MAKING OF SACKS OF POLYMERIC FILM OR TUBULAR MATERIAL, AND ORIENTED THERMOPLASTIC POLYMERIC MATERIAL FOR MANUFACTURE OF SACKS | 1989 |
|
RU2050310C1 |
| DEVICE FOR PACKING LOOSE MATERIALS IN LARGE-SIZE BAGS | 0 |
|
SU1546339A1 |
| METHOD OF MAKING PAPER BAG WITH INSERT FROM POLYMER MATERIAL (VERSIONS) | 2015 |
|
RU2585545C1 |
| MULTIPURPOSE TESTILE CONTAINER AND METHOD OF ITS MANUFACTURE | 2005 |
|
RU2292293C1 |
| DEVICE FOR FIXING BAGS ON FILLING PIPES | 0 |
|
SU1328244A1 |
| MATCH LIGHTING DEVICE | 1991 |
|
RU2011355C1 |
| BAG | 2015 |
|
RU2682428C2 |
