利乐无菌砖的包装材料 紧乙烯一防南作用 2纸张一稳固及强化包装 ③聚乙烯一粘性层 4 铝箔一阻隔氧气和阳光及 防止产品味道流失 5聚乙烯一粘性层 6 采乙烯一保持液体质量
Outside LDPE laer,1gm -Paperboard and printing Lamination layer LDPE,25gm Aluminium toil,17g/m Adhesive polymes,gm nside LDPE layer,29gm Example of TBA/materia
Construction of the packaging material. 1.Outer coating protects the package against external humidity. 2.Printing 3.Paper board,bleached,offers a good printing surface. 4.Paper board,unbleached,strengthens the package. 5.Lamination,a plastic layer which enables the paper board to stick to the aluminium layer. 6.Aluminium protects against oxygen and light. 7.Internal coating 1 offers adhesion against the aluminium layer. 8.Internal coating 2 offers tightning against the product and enables package sealing. Note! The structure of the packaging material varies depending on the product being packed.Further information is given in section Different material for different products,page 15-4
包装材料各层的作用 1.聚乙烯:防水.防微生物.防光。 2.纸板:赋予一定的强度和便于印刷。 3.聚乙烯:粘合铝萡和纸板。 4.铝萡:防止氧气.光.风味物质透过,同时在封 口时“电感加热”。 5.高密度聚乙烯:防止油墨分子向内迁移和防 止内部风味物质向外渗漏。 6.聚乙烯:防止液体外渗
包装材料各层的作用 1.聚乙烯:防水.防微生物.防光。 2.纸板:赋予一定的强度和便于印刷。 3.聚乙烯:粘合铝萡和纸板。 4.铝萡:防止氧气.光.风味物质透过,同时在封 口时“电感加热”。 5.高密度聚乙烯:防止油墨分子向内迁移和防 止内部风味物质向外渗漏。 6.聚乙烯:防止液体外渗
二.各种各样的包装
二.各种各样的包装