Shanghai Daoqin Plastics Co., Ltd.

      day active in 接触 plastics packaging bag types type more, specifications 不定, therefore, design and made as 人员往往 overlook made bag methods, its is although design 稿精美, made formed product packaging combined 人意, formed is waste product. experience 告诉我们, has in understanding commonly used packaging product types type upper, can 尽情发挥 design 思路, 杜绝不符 combined made bag process design as product, design use, formed product packaging.
plastics packaging bag made bag methods can separation is 三边封, in 底封, in and sheet/slice material 4 type .   
三边封 plastics bag is in packaging bag 四周封口, positive, dimensions is formed product dimensions, tool has overall 感, design 不受约束, front rear design tool has 一定 连贯 property. due to positive, dimensions 一致, can design positive 面, let and positive 面呼应. made positive, need in sleeve/set 版滚筒 upper.  
in plastics bag is in 背面封口, positive dimensions is formed product dimensions, separation formed versus and other separation, its wide degree and and other positive wide degree, usually in design is will positive, 背面展开, 进行一体化 design, in left right add 1cm封边, positive, in sleeve/set 版滚筒 upper.  
立体 in 封 plastics bag is in in 底封 基础 upper, in add 立体边, positive 背, 侧3面同样都 in sleeve/set 版滚筒 upper. sheet/slice material due to printing material made, its positive, 反面必 must separation design, separation made 版, can meanwhile in sleeve/set 版滚筒 upper.