| 摘要 |
<p>The bag i.e. valve bag (1), has a film comprising a first paper layer i.e. kraft paper layer, that is provided with an inner face and an outer face. Hydrophobic composition is coated on a part of the outer face of the first paper layer such that the part of the coated outer face presents air-wetting tension that is lower than or equal to water-wetting tension, where the bag is free from a plastic layer. The film comprises a second paper layer i.e. kraft paper layer, that is fixed on the inner face of the first paper layer by an adhesive layer. The hydrophobic composition is chosen from wax, lacquer, paint or oil. An independent claim is also included for a method for fabricating a bag.</p> |
