Barrier paper comprising grass fibers

The invention relates to a barrier paper (10) a) a paper substrate (11)， having a front side and a rear side opposite the front side， the paper substrate comprising cellulose fibers and at least some of the cellulose fibers consisting of grass fibers， and b) a barrier layer (12) arranged on the front and / or rear side of the paper substrate， the barrier layer (12) comprising or consisting of a polymeric binder and at least one wax and / or at least one vegetable oil. The present invention also relates to a food packaging， preferably a food bag， made from a barrier paper according to the invention and the use of a barrier paper according to the invention as a food packaging. The present invention further relates to a method for producing a barrier paper.

本发明涉及一种阻隔纸（barrier paper）(10)：
a) 纸基材（paper substrate）(11)，其具有正面与相对的背面，该纸基材包含纤维素纤维，且至少部分纤维素纤维为草类纤维；
b) 阻隔层（barrier layer）(12)，设置于该纸基材的正面和/或背面，该阻隔层包含或由聚合物粘合剂、至少一种蜡和/或至少一种植物油构成。
本发明还涉及一种由本发明所述阻隔纸制成的食品包装，优选为食品包装袋，以及本发明所述阻隔纸作为食品包装的用途。本发明进一步涉及一种阻隔纸的制备方法。