| 摘要 |
PURPOSE: Provided is a grain packing paper with jade, hard charcoal and ocher used which keeps freshness of grains and extends storage or effective period by negative ion discharged by the property of jade, hard charcoal and ocher. CONSTITUTION: The production process of the grain packing paper with jade, hard charcoal and ocher comprises the steps of: (i) preparing 8-15wt% of jade, 0.1-0.5wt% of hard charcoal and 30-50wt% of ocher and crushing into fine powder with more than 250 meshes in size; (ii) mixing the crushed material with a prepared coating member; (iii) filling a spray device with the mixed material and coats the material on the surface of packing paper; and (iv) drying the coated packing paper to produce as grain packing paper.
|
