The first prototype of soft-type containers was manufactured in Japan by Taiyo Kogyo Co. (1919). These were products of small carrying capacity and volume, as a rule they were used for transportation of bulk cargoes by rail.
Then, soft containers (big bags) began to be used in the US and Western Europe. The first variants contained in their basis natural raw materials: cotton canvas, tarpaulin, etc. Their exploitation was limited to the fact that they were not very strong and quickly rotted.
The next stage in the history of containers took placein the 50’s and 70’s of the twentieth century, when the production was transformed from natural material to synthetic bases – polyamide and polyester fabrics. These were stronger options for products, but they also had their disadvantages. Polyamides are prone to light aging, polyester are prone to accumulation of static electricity.
In the former Soviet Union, the first designs of soft-type containers appeared also in the 70’s, but they differed in quality and reliability from the modern ones and were less reliable than the current big bags in Ukraine produced by ZahidPromPack.