Bulk bags with polyethylene inliner provide a suitable solution for materials that require a high degree of purity during packaging. The PE inliner covers the whole inner side of the big bags so the material does not come into contact with the fabric or seams. For very tiny powdery materials and liquids bags dustproof sealing is usually not enough. In these cases inliners are used to prevent leakage.
Inliners can be in the form of a hose or in the form of a bottle which follows the spouts. Special type of inliner has baffles in itself and functions as a Q-bag:
PE inliners can be attached to the FIBC in various ways:
The inlet and outlet of FIBC with inliner can be designed with a spout, a skirt and other variants. There are various options for attaching and/or closing the inliner at the inlet and outlet of big bags:
Dimensions of PE inliner are usually determined based on the dimensions of a big bag for which it is used. Depending on the type and purpose of the material, the thickness of the inliner can be from 60 to 120 microns(my), usually it is 80 my for FIBC larger than 1000 kg. The material is usually 100% virgin LDPE, or at the request of the customer can be made from other materials. The inliner is usually transparent, but can also be blue or in other colors..
Type C bags and inliner
For type B and type C big bags, there is a special type of inliner that is electro-conductive..
Inliner for big bags with one or two loops
For big bags with one and two loops almost always a inliner is used. These inliners have a special shape..
Food industry and inliner
Inliner can meet the needs for big bags in the food industry. FIBC can be made with special measures for cleanliness..