CN107139560A - 液态食品包装的安全高阻隔复合膜及其加工方法 - Google Patents

液态食品包装的安全高阻隔复合膜及其加工方法 Download PDF

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CN107139560A
CN107139560A CN201710314865.9A CN201710314865A CN107139560A CN 107139560 A CN107139560 A CN 107139560A CN 201710314865 A CN201710314865 A CN 201710314865A CN 107139560 A CN107139560 A CN 107139560A
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film layer
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栾培培
张婧
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Wuhu City Sanshan District Green Food Industry Association
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Abstract

本发明公开了液态食品包装的安全高阻隔复合膜，其特征在于，所述的适用于液态食品包装的安全高阻隔复合膜依次设置为高聚物层、印刷层、强化膜层一、金属层、强化膜层二、避光热封层。本发明在纯铝箔层两侧均设置有强化膜层，大大提高了铝箔层的阻隔氧气及密封的能力，从而能够提高复合膜的阻隔、安全性能，增强复合膜的密封效果，延长液态食品的保质时间，在复合膜加工过程中，将纯铝箔层与两侧的强化膜层粘合后再与其他膜层粘合，不仅能够提高纯铝箔层与强化膜层之间的粘合强度，还能降低复合膜的加工难度，提高复合膜的整体质量性能。

Description

液态食品包装的安全高阻隔复合膜及其加工方法
技术领域
本发明涉及一种包装膜领域，具体是液态食品包装的安全高阻隔复合膜及其加工方法。
背景技术
目前，复合包装膜因其生产成本低、质量性能佳的优点被广泛用于食品药品包装领域，由于液态食品易变质、不易保存的特点，就对用于液态食品的复合包装膜在阻隔、安全、遮光、密封等方面提出更高的要求，而目前用于液态食品的复合包装膜多是又几层薄膜粘合而成，存在着质量性能不高、包装效果不佳的问题，如申请号为200920088205.4的专利公布了液态食品安全高阻隔复合薄膜，该液态食品安全高阻隔复合薄膜由双向拉伸聚乙烯薄膜或单向拉伸聚丙烯薄膜层、印刷层、高阻隔涂布层、粘合层和避光热封层叠置复合成一体，但其存在着包装的强度和阻隔性不高、复合膜的延展性、遮光性能较低的不足。
发明内容
本发明的目的是针对现有用于液态食品的复合膜存在的质量性能不高、包装效果不佳、延展性、遮光性能较低的问题，提供一种结构强度高、质量性能好、包装效率好、延展性、遮光性能高的液态食品包装的安全高阻隔复合膜及其加工方法。
本发明解决的技术问题所采取的技术方案为：
液态食品包装的安全高阻隔复合膜，其特征在于，所述的适用于液态食品包装的安全高阻隔复合膜依次设置为高聚物层、印刷层、强化膜层一、金属层、强化膜层二、避光热封层，在纯铝箔层两侧均设置有强化膜层，大大提高了铝箔层的阻隔氧气及密封的能力，从而能够提高复合膜的阻隔、安全性能，增强复合膜的密封效果，延长液态食品的保质时间，在复合膜加工过程中，将纯铝箔层与两侧的强化膜层粘合后再与其他膜层粘合，不仅能够提高纯铝箔层与强化膜层之间的粘合强度，也能够降低复合膜的加工难度，提高复合膜的整体性能。
所述的高聚物层设置为PDVC薄膜。
所述的强化膜层一设置为PET膜层。
所述的金属层设置材质为AL12的纯铝箔层。
所述的强化膜层二设置为PVC膜层。
所述的液态食品包装的安全高阻隔复合膜的加工方法通过以下步骤完成：
a.高聚物层与印刷层预合：将PDVC薄膜与印刷层薄膜各在48℃的无菌环境下干燥35h，干燥后向PDVC薄膜与印刷层薄膜之间加入丙烯酸树脂胶黏剂后进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度控制位45℃，固化时间为48h；
b.强化膜层一与金属层预合：将PET膜层与AL12的纯铝箔层分别在55℃的无菌环境中干燥20h，干燥后向PET膜层与AL12的纯铝箔层加入浓度为36%的铝塑复合粘，进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为35℃，固化时间为46h；
c.强化膜层一/金属层与强化膜层二预合：将PET膜层/AL12的纯铝箔层与PVC膜层在50℃的无菌环境下干燥38h，干燥后向PET膜层/AL12的纯铝箔层与PVC膜层之间加入浓度为41%的铝塑复合粘合剂进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为32℃，固化时间为54h；
d.强化膜层一/金属层/强化膜层二与避光热封层预合：将PET膜层/AL12的纯铝箔层/PVC膜层与避光热封层在58℃的无菌环境下干燥23h，干燥后向PET膜层/AL12的纯铝箔层/PVC膜层与避光热封层之间加入TPU热熔胶进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为36℃，固化时间为45h；
e.高聚物层/印刷层与强化膜层一/金属层/强化膜层二/避光热封层预合：将PDVC薄膜/印刷层薄膜与PET膜层/AL12的纯铝箔层/PVC膜层/避光热封层在52℃的无菌环境下干燥46h，干燥后向PDVC薄膜/印刷层薄膜与PET膜层/AL12的纯铝箔层/PVC膜层/避光热封层之间加入EVA热熔胶进行薄膜复合，薄膜复合机的收辊转数为20r/s，再加入醋酸乙脂胶合剂整平压合成型；
f.切分成捆，包装后制得适用于液态食品包装的安全高阻隔复合膜。
有益效果：本发明在纯铝箔层两侧均设置有强化膜层，大大提高了铝箔层的阻隔氧气及密封的能力，从而能够提高复合膜的阻隔、安全性能，增强复合膜的密封效果，延长液态食品的保质时间，在复合膜加工过程中，将纯铝箔层与两侧的强化膜层粘合后再与其他膜层粘合，不仅能够提高纯铝箔层与强化膜层之间的粘合强度，还能降低复合膜的加工难度，提高复合膜的整体质量性能。
附图说明
图1是本发明的结构示意图。
图中：1.高聚物层、2.印刷层、3.强化膜层一、4.金属层、5.强化膜层二、6.避光热封层。
具体实施方式
以下将结合附图对本发明进行较为详细的说明。
实施例1：
液态食品包装的安全高阻隔复合膜及其加工方法，其特征在于，所述的适用于液态食品包装的安全高阻隔复合膜依次设置为高聚物层1、印刷层2、强化膜层一3、金属层4、强化膜层二5、避光热封层6，所述的高聚物层1设置为PDVC薄膜，所述的强化膜层一3设置为PET膜层，所述的金属层4设置材质为AL12的纯铝箔层，所述的强化膜层二5设置为PVC膜层，在纯铝箔层两侧均设置有强化膜层，大大提高了铝箔层的阻隔氧气及密封的能力，从而能够提高复合膜的阻隔、安全性能，增强复合膜的密封效果，延长液态食品的保质时间，在复合膜加工过程中，将纯铝箔层与两侧的强化膜层粘合后再与其他膜层粘合，不仅能够提高纯铝箔层与强化膜层之间的粘合强度，也能够降低复合膜的加工难度，提高复合膜的整体性能。
所述的加工方法通过以下步骤完成：
a.高聚物层1与印刷层2预合：将PDVC薄膜与印刷层2薄膜各在48℃的无菌环境下干燥35h，干燥后向PDVC薄膜与印刷层2薄膜之间加入丙烯酸树脂胶黏剂后进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度控制位45℃，固化时间为48h；
b.强化膜层一3与金属层4预合：将PET膜层与AL12的纯铝箔层分别在55℃的无菌环境中干燥20h，干燥后向PET膜层与AL12的纯铝箔层加入浓度为36%的铝塑复合粘，进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为35℃，固化时间为46h；
c.强化膜层一3/金属层4与强化膜层二5预合：将PET膜层/AL12的纯铝箔层与PVC膜层在50℃的无菌环境下干燥38h，干燥后向PET膜层/AL12的纯铝箔层与PVC膜层之间加入浓度为41%的铝塑复合粘合剂进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为32℃，固化时间为54h；
d.强化膜层一3/金属层4/强化膜层二5与避光热封层6预合：将PET膜层/AL12的纯铝箔层/PVC膜层与避光热封层6在58℃的无菌环境下干燥23h，干燥后向PET膜层/AL12的纯铝箔层/PVC膜层与避光热封层之间加入TPU热熔胶进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为36℃，固化时间为45h；
e.高聚物层1/印刷层2与强化膜层一3/金属层4/强化膜层二5/避光热封层6预合：将PDVC薄膜/印刷层2薄膜与PET膜层/AL12的纯铝箔层/PVC膜层/避光热封层6在52℃的无菌环境下干燥46h，干燥后向PDVC薄膜/印刷层2薄膜与PET膜层/AL12的纯铝箔层/PVC膜层/避光热封层6之间加入EVA热熔胶进行薄膜复合，薄膜复合机的收辊转数为20r/s，再加入醋酸乙脂胶合剂整平压合成型；
f.切分成捆，包装后制得适用于液态食品包装的安全高阻隔复合膜。
实施例2：
液态食品包装的安全高阻隔复合膜及其加工方法，其特征在于，所述的适用于液态食品包装的安全高阻隔复合膜依次设置为高聚物层1、印刷层2、强化膜层一3、金属层4、强化膜层二5、避光热封层6，所述的高聚物层1设置为聚酯膜层，所述的强化膜层一3设置为HDPE膜层，所述的金属层4设置材质为AL12的纯铝箔层，所述的强化膜层二5设置为PEY膜层，在纯铝箔层两侧均设置有强化膜层，大大提高了铝箔层的阻隔氧气及密封的能力，从而能够提高复合膜的阻隔、安全性能，增强复合膜的密封效果，延长液态食品的保质时间，在复合膜加工过程中，将纯铝箔层与两侧的强化膜层粘合后再与其他膜层粘合，不仅能够提高纯铝箔层与强化膜层之间的粘合强度，也能够降低复合膜的加工难度，提高复合膜的整体性能。
所述的加工方法通过以下步骤完成：
a.高聚物层1与印刷层2预合：将聚酯膜层与印刷层2薄膜各在46℃的无菌环境下干燥38h，干燥后向聚酯膜层与印刷层2薄膜之间加入环氧树脂胶粘剂后进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度控制位47℃，固化时间为56h；
b.强化膜层一3与金属层4预合：将HDPE膜层与AL12的纯铝箔层分别在47℃的无菌环境中干燥35h，干燥后向HDPE膜层与AL12的纯铝箔层加入浓度为38%的铝塑复合粘，进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为43℃，固化时间为50h；
c.强化膜层一3/金属层4与强化膜层二5预合：将HDPE膜层/AL12的纯铝箔层与PEY膜层在55℃的无菌环境下干燥36h，干燥后向HDPE膜层/AL12的纯铝箔层与PEY膜层之间加入浓度为34%的铝塑复合粘合剂进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为36℃，固化时间为52h；
d.强化膜层一3/金属层4/强化膜层二5与避光热封层6预合：将HDPE膜层/AL12的纯铝箔层/PEY膜层与避光热封层6在57℃的无菌环境下干燥33h，干燥后向HDPE膜层/AL12的纯铝箔层/PEY膜层与避光热封层之间加入有机胶水进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为39℃，固化时间为43h；
e.高聚物层1/印刷层2与强化膜层一3/金属层4/强化膜层二5/避光热封层6预合：将聚酯膜层/印刷层2薄膜与HDPE膜层/AL12的纯铝箔层/PEY膜层/避光热封层6在54℃的无菌环境下干燥42h，干燥后向聚酯膜层/印刷层2薄膜与HDPE膜层/AL12的纯铝箔层/PEY膜层/避光热封层6之间加入聚氨酯胶粘剂进行薄膜复合，薄膜复合机的收辊转数为25r/s，再加入醋酸乙脂胶合剂整平压合成型；
f.切分成捆，包装后制得适用于液态食品包装的安全高阻隔复合膜。
实施例3：
液态食品包装的安全高阻隔复合膜及其加工方法，其特征在于，所述的适用于液态食品包装的安全高阻隔复合膜依次设置为高聚物层1、印刷层2、强化膜层一3、金属层4、强化膜层二5、避光热封层6，所述的高聚物层1设置为聚乙烯树脂膜层，所述的强化膜层一3设置为PTFE膜层，所述的金属层4设置材质为AL12的纯铝箔层，所述的强化膜层二5设置为PET膜层，在纯铝箔层两侧均设置有强化膜层，大大提高了铝箔层的阻隔氧气及密封的能力，从而能够提高复合膜的阻隔、安全性能，增强复合膜的密封效果，延长液态食品的保质时间，在复合膜加工过程中，将纯铝箔层与两侧的强化膜层粘合后再与其他膜层粘合，不仅能够提高纯铝箔层与强化膜层之间的粘合强度，也能够降低复合膜的加工难度，提高复合膜的整体性能。
所述的加工方法通过以下步骤完成：
a.高聚物层1与印刷层2预合：将聚乙烯树脂膜层与印刷层2薄膜各在49℃的无菌环境下干燥41h，干燥后向聚乙烯树脂膜层与印刷层2薄膜之间加入有机胶水后进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度控制位42℃，固化时间为58h；
b.强化膜层一3与金属层4预合：将PTFE膜层与AL12的纯铝箔层分别在41℃的无菌环境中干燥39h，干燥后向PTFE膜层与AL12的纯铝箔层加入浓度为35%的铝塑复合粘，进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为45℃，固化时间为52h；
c.强化膜层一3/金属层4与强化膜层二5预合：将PTFE膜层/AL12的纯铝箔层与PET膜层在55℃的无菌环境下干燥36h，干燥后向HDPE膜层/AL12的纯铝箔层与PET膜层之间加入浓度为37%的铝塑复合粘合剂进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为38℃，固化时间为57h；
d.强化膜层一3/金属层4/强化膜层二5与避光热封层6预合：将PTFE膜层/AL12的纯铝箔层/PET膜层与避光热封层6在53℃的无菌环境下干燥45h，干燥后向PTFE膜层/AL12的纯铝箔层/PET膜层与避光热封层之间加入有机胶水进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为37℃，固化时间为48h；
e.高聚物层1/印刷层2与强化膜层一3/金属层4/强化膜层二5/避光热封层6预合：将聚乙烯树脂膜层/印刷层2薄膜与PTFE膜层/AL12的纯铝箔层/PET膜层/避光热封层6在55℃的无菌环境下干燥46h，干燥后向聚酯膜层/印刷层2薄膜与PTFE膜层/AL12的纯铝箔层/PET膜层/避光热封层6之间加入聚氨酯胶粘剂进行薄膜复合，薄膜复合机的收辊转数为13r/s，再加入醋酸乙脂胶合剂整平压合成型；
f.切分成捆，包装后制得适用于液态食品包装的安全高阻隔复合膜。
本发明未涉及部分均与现有技术相同或可采用现有技术加以实现。

Claims (6)

1.一种液态食品包装的安全高阻隔复合膜，其特征在于，所述的适用于液态食品包装的安全高阻隔复合膜依次设置为高聚物层、印刷层、强化膜层一、金属层、强化膜层二、避光热封层。
2.根据权利要求1所述的液态食品包装的安全高阻隔复合膜，其特征在于，所述的高聚物层设置为PDVC薄膜。
3.根据权利要求1所述的液态食品包装的安全高阻隔复合膜，其特征在于，所述的强化膜层一设置为PET膜层。
4.根据权利要求1所述的液态食品包装的安全高阻隔复合膜，其特征在于，所述的金属层设置材质为AL12的纯铝箔层。
5.根据权利要求1所述的液态食品包装的安全高阻隔复合膜，其特征在于，所述的强化膜层二设置为PVC膜层。
6.根据权利要求1所述的液态食品包装的安全高阻隔复合膜，所述的加工方法通过以下步骤完成：
a.高聚物层与印刷层预合：将PDVC薄膜与印刷层薄膜各在48℃的无菌环境下干燥35h，干燥后向PDVC薄膜与印刷层薄膜之间加入丙烯酸树脂胶黏剂后进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度控制位45℃，固化时间为48h；
b.强化膜层一与金属层预合：将PET膜层与AL12的纯铝箔层分别在55℃的无菌环境中干燥20h，干燥后向PET膜层与AL12的纯铝箔层加入浓度为36%的铝塑复合粘，进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为35℃，固化时间为46h；
c.强化膜层一/金属层与强化膜层二预合：将PET膜层/AL12的纯铝箔层与PVC膜层在50℃的无菌环境下干燥38h，干燥后向PET膜层/AL12的纯铝箔层与PVC膜层之间加入浓度为41%的铝塑复合粘合剂进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为32℃，固化时间为54h；
d.强化膜层一/金属层/强化膜层二与避光热封层预合：将PET膜层/AL12的纯铝箔层/PVC膜层与避光热封层在58℃的无菌环境下干燥23h，干燥后向PET膜层/AL12的纯铝箔层/PVC膜层与避光热封层之间加入TPU热熔胶进行薄膜复合，复合好之后送入无菌固化机进行固化，固化温度为36℃，固化时间为45h；
e.高聚物层/印刷层与强化膜层一/金属层/强化膜层二/避光热封层预合：将PDVC薄膜/印刷层薄膜与PET膜层/AL12的纯铝箔层/PVC膜层/避光热封层在52℃的无菌环境下干燥46h，干燥后向PDVC薄膜/印刷层薄膜与PET膜层/AL12的纯铝箔层/PVC膜层/避光热封层之间加入EVA热熔胶进行薄膜复合，薄膜复合机的收辊转数为20r/s，再加入醋酸乙脂胶合剂整平压合成型；
f.切分成捆，包装后制得适用于液态食品包装的安全高阻隔复合膜。
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