Packaging bag

Abstract

The present invention relates to a packaging bag. The packaging bag includes a bag body member. The bag body member has a double-layered structure which is formed by an inner sheet and an outer sheet, whereby toughness of the packaging bag is improved. A carrying handle member is attached to an upper end of the bag body member to enable easy carrying and handling of the packaging bag. A zipper or zippers are installed on an upper end and/or a lower end of the packaging bag, whereby the packaging bag can be rapidly and easily opened and closed.

What is claimed is:  
     
         1 . A packaging bag comprising: 
 a cylindrical bag body member having a double-layered structure which is formed by an inner sheet and an outer sheet; and    a carrying handle member inserted into and fastened to an upper end of the bag body member.    
     
     
         2 . The packaging bag as claimed in  claim 1 , wherein the carrying handle member comprises a transversely extending elongate bar which is inserted into and fastened to the upper end of the bag body member and a handle which projects upward from substantially a center portion of the elongate bar.  
     
     
         3 . The packaging bag as claimed in  claim 2 , wherein the carrying handle member is made of a synthetic resinous material.  
     
     
         4 . The packaging bag as claimed in  claim 1 , wherein the cylindrical bag body member has a pair of seaming portions which correspond to both side ends thereof and extend in a longitudinal direction, and an inner tape and an outer tape are attached to inner surfaces and outer surfaces of the seaming portions, respectively.  
     
     
         5 . The packaging bag as claimed in  claim 4 , wherein the inner and outer tapes are made of a nonwoven fabric which possesses a high frictional coefficient.  
     
     
         6 . The packaging bag as claimed in  claim 1 , wherein the inner sheet is made of linear low-density polyethylene (LLDPE), and the outer sheet is made of one selected from a group consisting of nylon, polyethylene terephthalate (PET), LLDPE, paper, polyethylene, and a lamination of at least two of them.  
     
     
         7 . The packaging bag as claimed in  claim 3 , wherein the upper end of the bag body member is sealed by heat fusion after the carrying handle member is inserted therein, and a lower end of the bag body member is sealed by heat fusion.  
     
     
         8 . The packaging bag as claimed in  claim 1 , wherein a zipper or zippers are attached to the upper end and/or the lower end of the bag body member.