Open multilayer bags are designed for packaging bulk and piece goods with subsequent sewing or gluing of the bag neck. The total number of layers of paper and combined materials ranges from two to six. The entire range of kraft paper is made from 100% kraft pulp. For food products (milk powder, feed yeast, fishmeal, pasta, food additives), three-layer and four-layer open bags are usually used. As standard, open bags of the brand are made from sack kraft paper with a density of 65 g/m or 70 g/m in three or four layers. For the top layer, either brown or white kraft paper with a density of 70 g/m or 80 g can be used.