Liquid packaging bags can be used to fill asphalt, paraffin, rosin, solid alkali and Other liquids at high temperatures, solid materials at room temperature and paint, paint and other thick materials, with low cost, high strength, acid, alkali and resistant High temperature (450°C), moisture resistance, can prevent surface aging of packaged materials, anti-virus, anti-corrosion, stacking layers (above 20 layers) and neat, easy to transport (especially railways and shipping) and handling and save storage and transportation Volume, easy filling and non-stick bags when opening, can achieve civilized production, old bags without harmful substances and easy to recycle, etc., can be used for dangerous goods packaging.
The materials used for making liquid packaging bags mainly include kraft paper, plastic-woven cloth, non-woven fabrics, chemical fiber cloth, rubber, flat cloth made of cotton and linen, vinylon water-soluble yarn, composite film, and the like. , coated with high temperature anti-sticking material.
Recently, the use of various types of reinforced paper for the production of liquid flexible packaging bags with other materials has shown its characteristics, and has initially formed a trend.
The upper end of the liquid packaging bag is made into an open mouth, and a large-sized packaging bag is provided with a bottleneck-type charging port, which is sealed after filling. The bottom of the bag is sealed, with high firmness and tightness. The bag body can be reinforced with metal strips.
Liquid packaging bags used to package construction petroleum asphalt, ordinary petroleum asphalt, and road petroleum asphalt have begun to spread. Several domestic petrochemical companies have begun to use them, and several bag-making companies have also developed several different types of asphalt packaging bags. Some have formed industry standards, and some have established corporate standards.
Recently, a packaging bag containing caustic soda and solid caustic soda has been developed.
Alkali with large water content, commonly known as caustic soda, is often transported by special tank trucks that are used by users when they are used in large quantities. After reaching their destination, they are discharged by pipelines. Or use iron drums. The successful development of solid caustic soda bags has changed the old look of solid caustic soda packaging, improved product quality, increased benefits, solved inconvenient problems in storage, transportation, and use, and reduced insecurity.
The use of packaging bags for filling thick objects also saves floor space and transportation costs for filling, cooling, storage.
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