发明名称 A SACK OF GRAIN AND MANUFACTURING METHOD THEREOF
摘要 PURPOSE: A grain sack and a manufacturing method thereof are provided to prevent the color change and the degeneration of grains by protecting the grains from the moisture using a complex kraft paper layer. CONSTITUTION: A grain sack(1) includes a normal kraft paper layer(10), and a complex kraft paper layer(20). The normal kraft paper layer is formed by overlapping two sheets of kraft paper(10a,10b). The complex kraft paper layer is formed on the outside of the normal kraft paper layer, and includes another page of kraft paper(10c) and a PE bonding layer(20b). The PE bonding layer prevents water from being inserted into the sack.
申请公布号 KR20110041820(A) 申请公布日期 2011.04.22
申请号 KR20090098821 申请日期 2009.10.16
申请人 P&B CO., LTD. 发明人 LEE, HYEON JOO
分类号 B65D30/08;B31B39/00;B65D33/01;B65D33/04 主分类号 B65D30/08
代理机构 代理人
主权项
地址