Why should ton bags have the function of waterproof sealing

Due to the special requirements of packaging in chemical, cement, fertilizer, sugar and other industries, a considerable number of tons of bags must have the function of waterproof sealing At present, there are two main forms of waterproof sealing tons of bags widely produced and applied in China: One is an ordinary separate type lined film bag with an outer ton bag and an inner film bag, and the other is a laminated film ton bag with a layer of plastic film coated on a plastic woven cloth.

The production equipment and process of the separated lining film ton bag is relatively simple, the equipment investment is low, and the application is very wide. The inner bag is a blown film bag, and the outer chemical bag manufacturer's bag is a ton bag. The length and width of the inner bag are slightly larger than that of the outer bag. It is easy to break and the lining film bag and the outer bag need to be manually set together, the inner and outer bags at the mouth of the bag should be aligned and stitched, its production efficiency is low, manpower waste is large, and continuous production can not be carried out. A skilled operator can only complete about 1000 sets of manual bags per day, and only 300 pieces can be completed per person per day with the hinged sewing machine.

Coating ton bag production must go through the coating process, the coating machine is used to coat a layer of plastic film with a thickness of 0.02~0.04mm on the outside of the woven drum cloth, and the extrusion film temperature is 300℃. The combination between the just extruded film and the woven cloth is relatively firm by a pair of cooling rollers, but such high temperature reduces the strength of the cloth. The elasticity becomes smaller, the brittleness of the bag surface increases, and the bag is easily damaged when it is dropped.

The above is the relevant information shared by ton bag manufacturers for you. I hope it will be helpful to you. If you are interested in our products, please call our website for more in-depth understanding. Thank you for your attention and support to our website!