Packaging bag having an anti-slip plastic layer

Abstract

A packaging bag includes a plain woven plastic bag body having two opposite major walls facing each other to define an accommodation space, and at least one anti-slip plastic layer formed by thermo-coating on an outer surface of at least one of the major walls so as to provide a frictional force for preventing slippage of the bag body. The bag body is made of a material selected from the group consisting of polypropylene and polyethylene. The anti-slip plastic layer is made of a material selected from the group consisting of polypropylene, polyethylene, and polyvinyl chloride.

1 . A packaging bag comprising:
 a plain woven plastic bag body having two opposite major walls facing each other to define an accommodation space; and   at least one anti-slip plastic layer formed by thermo-coating on an outer surface of at least one of said major walls so as to provide a frictional force for preventing slippage of said bag body.   
     
     
         2 . The packaging bag of  claim 1 , wherein said bag body is made of a material selected from the group consisting of polypropylene and polyethylene, and said anti-slip plastic layer is made of a material selected from the group consisting of polypropylene, polyethylene, and polyvinyl chloride. 
     
     
         3 . The packaging bag of  claim 1 , wherein said bag body further has longitudinally opposite opened and closed ends, and said anti-slip plastic layer is elongated, and extends longitudinally between said opened and closed ends of said bag body. 
     
     
         4 . The packaging bag of  claim 1 , wherein said anti-slip plastic layer covers completely said outer surfaces of said major walls. 
     
     
         5 . The packaging bag of  claim 1 , wherein said anti-slip plastic layer has an outer surface provided with a plurality of anti-slip protrusions projecting outwardly therefrom.