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CN108501484B - 一种bopp珠光膜及其制造方法 - Google Patents

一种bopp珠光膜及其制造方法 Download PDF

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CN108501484B
CN108501484B CN201810040254.4A CN201810040254A CN108501484B CN 108501484 B CN108501484 B CN 108501484B CN 201810040254 A CN201810040254 A CN 201810040254A CN 108501484 B CN108501484 B CN 108501484B
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surface layer
film
layers
antioxidant
bopp
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CN108501484A (zh
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方文彬
许艺生
徐登赛
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Gettel Group Suqian Plastic Co ltd
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Abstract

本发明公开了一种BOPP珠光膜，包括A、B、C三层，其中A、C层为表层，B为芯层，所述表层A为85‑90%氯化聚乙烯+5%聚乙烯+3%聚丙烯+1‑4%抗氧剂+剩余珠光粉，所述芯层B为50%聚丙烯+30%珠光粉+2‑5%抗静电剂+剩余抗氧剂，所述表层C为30‑56%聚苯乙烯+20‑35%环氧树脂+10‑20%热稳定剂+5‑15%抗静电剂+3‑5%抗氧剂+10‑15%珠光片双酯+剩余爽滑剂。本发明结构简单、操作方便、制造成本低、制造过程中产生的次品率偏低，产品美观大方，性能好。

Description

一种BOPP珠光膜及其制造方法
技术领域
本发明涉及一种珠光膜及其制造方法，具体涉及一种BOPP珠光膜及其制造方法。
背景技术
珠光膜是用聚丙烯树脂为原料、添加碳酸钙和珠光颜料等，混合后经双向拉伸而成。由于采用机械发泡法，所以珠光膜的比重仅0.7左右，而PP比重是0.9左右，所以软包装企业愿意选用，因为价廉且装饰性好、性能优良。一般复合结构的BOPP珠光膜由于具有一定的珠光效果，常常用在冷饮包装如：冰激凌、热封标签、甜食、饼干、风味小吃包装等。在长期生产过程中发现现在珠光膜的制造成本高，在制造过程中由于没有对原料进行筛选过滤，导致出现的次品率较高。
发明内容
本发明针对背景技术中的不足：提供一种BOPP珠光膜及其制造方法。本发明的目的是通过如下途径实现的：
一种BOPP珠光膜，包括A、B、C三层，其中A、C层为表层，B为芯层，所述表层A为85-90％氯化聚乙烯、5％聚乙烯、3％聚丙烯、1-4％抗氧剂和剩余珠光粉，所述表层A的各组分之和为100％，所述芯层B为50％聚丙烯、30％珠光粉、2-5％抗静电剂和剩余抗氧剂，所述芯层B的各组分之和为100％，所述表层C为30％聚苯乙烯、20％环氧树脂、10％热稳定剂、5-15％抗静电剂、3-5％抗氧剂、10-15％珠光片双酯和剩余爽滑剂，所述表层C的各组分之和为100％。
所述A、B、C各层的厚度分布：表层A为0.7-2.4微米，芯层B为5-7微米，表层C为1-3微米。
所述抗氧剂为对苯二胺、二氢喹啉、三辛酯、三癸酯或2，6-三级丁基-4-甲基苯酚。
所述抗静电剂为阴离子抗静电剂。
所述爽滑剂主要成分为α—淀粉酶制剂、β—葡萄糖酶、烷基苯磺酸钠和阿拉伯胶。
一种BOPP珠光膜的制造方法，包括如下步骤，(1)原料过滤，将用于制作表层A、芯层B和表层C的原料用过滤筛逐一进行两次过滤，将过滤的杂质驱除；(2)混料搅拌，将用于制作表层A、芯层B和表层C的原料分别放入搅拌机内进行混料搅拌，搅拌时间3-5分钟，(3)二次过滤，将经过混料搅拌后的原料用过滤筛进行二次过滤，过滤后分别放入挤出机；(4)熔融挤出，在将二次过滤后的混合原料放入挤出机时，事先将挤出机预热，当加热区温度为180-210℃时，再将混合原料放入挤出机，在熔融的过程中，原料在挤出机的作用下塑化、混炼，并经第三和第五加热区的两个排气口经原料上的水分吸出，空气利用真空泵排出，原料经熔融后通过计量泵进入过滤器，然后进入模头；(5)铸片，熔体在模头中分三层流出，模头温度为225-260℃，之后经铸片辊内的冷水进行冷却后形成厚片，铸片辊表面温度为5-12℃，(6)纵向拉伸，在进行纵向拉伸前，厚片事先经预热辊预热后进入纵向拉伸机内进行3-6次纵向拉伸，将其拉伸成薄片，(7)横向拉伸，薄片经纵向拉伸后进入横向拉伸机内进行3-6次横向拉伸，然后再进行定型区进行后进行二次冷却，(8)牵引切边，在牵引切边前，事先进行巡检，用巡检装置或肉眼对薄片进行检查、看是否存在瑕疵，若存在，看在牵引切边过程中是否能修复，之后再进行切边，切边过程中产生的废料送入粉碎机内进行粉碎，(9)收卷，切边完成后利用收卷装置进行收卷，(10)分切，之后将收卷完成的薄膜进行放卷，在放卷过程中将薄膜平铺之后按照规定的尺寸利用分切装置进行分切，(11)验收，对分切后的薄膜进行验收，验收合格包装，验收不合格退回，(12)将验收合格的产品进行包装，最后入库。
本发明的有益效果：
本发明结构简单、操作方便、制造成本低、制造过程中产生的次品率偏低，产品美观大方，性能好。
具体实施方式
下面结合实施例对本发明作进一步的描述：
实施例1
本发明公开了一种BOPP珠光膜，包括A、B、C三层，其中A、C层为表层，B为芯层，所述表层A为85-90％氯化聚乙烯、5％聚乙烯、3％聚丙烯、1-4％抗氧剂和剩余珠光粉，所述表层A的各组分之和为100％，所述芯层B为50％聚丙烯、30％珠光粉、2-5％抗静电剂和剩余抗氧剂，所述芯层B的各组分之和为100％，所述表层C为30％聚苯乙烯、20％环氧树脂、10％热稳定剂、5-15％抗静电剂、3-5％抗氧剂、10-15％珠光片双酯和剩余爽滑剂，所述表层C的各组分之和为100％，所述A、B、C各层的厚度分布：表层A为0.7-2.4微米，芯层B为5-7微米，表层C为1-3微米，所述抗氧剂为对苯二胺、二氢喹啉、三辛酯、三癸酯或2，6-三级丁基-4-甲基苯酚，所述抗静电剂为阴离子抗静电剂，所述爽滑剂主要成分为α—淀粉酶制剂、β—葡萄糖酶、烷基苯磺酸钠和阿拉伯胶，根据上述所述的一种BOPP珠光膜的制造方法，包括如下步骤，(1)原料过滤，将用于制作表层A、芯层B和表层C的原料用过滤筛逐一进行两次过滤，将过滤的杂质驱除；(2)混料搅拌，将用于制作表层A、芯层B和表层C的原料分别放入搅拌机内进行混料搅拌，搅拌时间3-5分钟，(3)二次过滤，将经过混料搅拌后的原料用过滤筛进行二次过滤，过滤后分别放入挤出机；(4)熔融挤出，在将二次过滤后的混合原料放入挤出机时，事先将挤出机预热，当加热区温度为180-210℃时，再将混合原料放入挤出机，在熔融的过程中，原料在挤出机的作用下塑化、混炼，并经第三和第五加热区的两个排气口经原料上的水分吸出，空气利用真空泵排出，原料经熔融后通过计量泵进入过滤器，然后进入模头；(5)铸片，熔体在模头中分三层流出，模头温度为225-260℃，之后经铸片辊内的冷水进行冷却后形成厚片，铸片辊表面温度为5-12℃，(6)纵向拉伸，在进行纵向拉伸前，厚片事先经预热辊预热后进入纵向拉伸机内进行3-6次纵向拉伸，将其拉伸成薄片，(7)横向拉伸，薄片经纵向拉伸后进入横向拉伸机内进行3-6次横向拉伸，然后再进行定型区进行后进行二次冷却，(8)牵引切边，在牵引切边前，事先进行巡检，用巡检装置或肉眼对薄片进行检查、看是否存在瑕疵，若存在，看在牵引切边过程中是否能修复，之后再进行切边，切边过程中产生的废料送入粉碎机内进行粉碎，(9)收卷，切边完成后利用收卷装置进行收卷，(10)分切，之后将收卷完成的薄膜进行放卷，在放卷过程中将薄膜平铺之后按照规定的尺寸利用分切装置进行分切，(11)验收，对分切后的薄膜进行验收，验收合格包装，验收不合格退回，(12)将验收合格的产品进行包装，最后入库。
实施例2
本发明公开了一种BOPP珠光膜，包括A、B、C三层，其中A、C层为表层，B为芯层，所述表层A为87％氯化聚乙烯、5％聚乙烯、3％聚丙烯、2％抗氧剂和剩余珠光粉，所述表层A的各组分之和为100％，所述芯层B为50％聚丙烯、30％珠光粉、3％抗静电剂和剩余抗氧剂，所述芯层B的各组分之和为100％，所述表层C为30％聚苯乙烯、20％环氧树脂、10％热稳定剂、9％抗静电剂、4％抗氧剂、12％珠光片双酯和剩余爽滑剂，所述表层C的各组分之和为100％，所述A、B、C各层的厚度分布：表层A为2微米，芯层B为5微米，表层C为2微米，所述抗氧剂为对苯二胺、二氢喹啉、三辛酯、三癸酯或2，6-三级丁基-4-甲基苯酚，所述抗静电剂为阴离子抗静电剂，所述爽滑剂主要成分为α—淀粉酶制剂、β—葡萄糖酶、烷基苯磺酸钠和阿拉伯胶，根据上述所述的一种BOPP珠光膜的制造方法，包括如下步骤，(1)原料过滤，将用于制作表层A、芯层B和表层C的原料用过滤筛逐一进行两次过滤，将过滤的杂质驱除；(2)混料搅拌，将用于制作表层A、芯层B和表层C的原料分别放入搅拌机内进行混料搅拌，搅拌时间4分钟，(3)二次过滤，将经过混料搅拌后的原料用过滤筛进行二次过滤，过滤后分别放入挤出机；(4)熔融挤出，在将二次过滤后的混合原料放入挤出机时，事先将挤出机预热，当加热区温度为200℃时，再将混合原料放入挤出机，在熔融的过程中，原料在挤出机的作用下塑化、混炼，并经第三和第五加热区的两个排气口经原料上的水分吸出，空气利用真空泵排出，原料经熔融后通过计量泵进入过滤器，然后进入模头；(5)铸片，熔体在模头中分三层流出，模头温度为240℃，之后经铸片辊内的冷水进行冷却后形成厚片，铸片辊表面温度为8℃，(6)纵向拉伸，在进行纵向拉伸前，厚片事先经预热辊预热后进入纵向拉伸机内进行5次纵向拉伸，将其拉伸成薄片，(7)横向拉伸，薄片经纵向拉伸后进入横向拉伸机内进行5次横向拉伸，然后再进行定型区进行后进行二次冷却，(8)牵引切边，再牵引切边前，事先进行巡检，用巡检装置或肉眼对薄片进行检查、看是否存在瑕疵，若存在，看在牵引切边过程中是否能修复，之后再进行切边，切边过程中产生的废料送入粉碎机内进行粉碎，(9)收卷，切边完成后利用收卷装置进行收卷，(10)分切，之后将收卷完成的薄膜进行放卷，在放卷过程中将薄膜平铺之后按照规定的尺寸利用分切装置进行分切，(11)验收，对分切后的薄膜进行验收，验收合格包装，验收不合格退回，(12)将验收合格的产品进行包装，最后入库。
实施例3
本发明公开了一种BOPP珠光膜，包括A、B、C三层，其中A、C层为表层，B为芯层，所述表层A为85％氯化聚乙烯、5％聚乙烯、3％聚丙烯、4％抗氧剂和剩余珠光粉，所述表层A的各组分之和为100％，所述芯层B为50％聚丙烯、30％珠光粉、5％抗静电剂和剩余抗氧剂，所述芯层B的各组分之和为100％，所述表层C为30％聚苯乙烯、20％环氧树脂、10％热稳定剂、5％抗静电剂、3％抗氧剂、10％珠光片双酯和剩余爽滑剂，所述表层C的各组分之和为100％，所述A、B、C各层的厚度分布：表层A为2.4微米，芯层B为5微米，表层C为3微米，所述抗氧剂为对苯二胺、二氢喹啉、三辛酯、三癸酯或2，6-三级丁基-4-甲基苯酚，所述抗静电剂为阴离子抗静电剂，所述爽滑剂主要成分为α—淀粉酶制剂、β—葡萄糖酶、烷基苯磺酸钠和阿拉伯胶；根据上述所述一种BOPP珠光膜的制造方法，包括如下步骤，(1)原料过滤，将用于制作表层A、芯层B和表层C的原料用过滤筛逐一进行两次过滤，将过滤的杂质驱除；(2)混料搅拌，将用于制作表层A、芯层B和表层C的原料分别放入搅拌机内进行混料搅拌，搅拌时间5分钟，(3)二次过滤，将经过混料搅拌后的原料用过滤筛进行二次过滤，过滤后分别放入挤出机；(4)熔融挤出，在将二次过滤后的混合原料放入挤出机时，事先将挤出机预热，当加热区温度为180℃时，再将混合原料放入挤出机，在熔融的过程中，原料在挤出机的作用下塑化、混炼，并经第三和第五加热区的两个排气口经原料上的水分吸出，空气利用真空泵排出，原料经熔融后通过计量泵进入过滤器，然后进入模头；(5)铸片，熔体在模头中分三层流出，模头温度为260℃，之后经铸片辊内的冷水进行冷却后形成厚片，铸片辊表面温度为5℃，(6)纵向拉伸，在进行纵向拉伸前，厚片事先经预热辊预热后进入纵向拉伸机内进行6次纵向拉伸，将其拉伸成薄片，(7)横向拉伸，薄片经纵向拉伸后进入横向拉伸机内进行3次横向拉伸，然后再进行定型区进行后进行二次冷却，(8)牵引切边，再牵引切边前，事先进行巡检，用巡检装置或肉眼对薄片进行检查、看是否存在瑕疵，若存在，看在牵引切边过程中是否能修复，之后再进行切边，切边过程中产生的废料送入粉碎机内进行粉碎，(9)收卷，切边完成后利用收卷装置进行收卷，(10)分切，之后将收卷完成的薄膜进行放卷，在放卷过程中将薄膜平铺之后按照规定的尺寸利用分切装置进行分切，(11)验收，对分切后的薄膜进行验收，验收合格包装，验收不合格退回，(12)将验收合格的产品进行包装，最后入库。

Claims (6)

1.一种BOPP珠光膜，包括A、B、C三层，其中A、C层为表层，B为芯层，其特征在于：所述表层A为85-90％氯化聚乙烯、5％聚乙烯、3％聚丙烯、1-4％抗氧剂和剩余珠光粉，所述表层A的各组分之和为100％，所述芯层B为50％聚丙烯、30％珠光粉、2-5％抗静电剂和剩余抗氧剂，所述芯层B的各组分之和为100％，所述表层C为30％聚苯乙烯、20％环氧树脂、10％热稳定剂、5-15％抗静电剂、3-5％抗氧剂、10-15％珠光片双酯和剩余爽滑剂，所述表层C的各组分之和为100％。
2.根据权利要求1所述的一种BOPP珠光膜，其特征在于：所述A、B、C各层的厚度分布：表层A为0.7-2.4微米，芯层B为5-7微米，表层C为1-3微米。
3.根据权利要求1所述的一种BOPP珠光膜，其特征在于：所述抗氧剂为对苯二胺、二氢喹啉、三辛酯、三癸酯或2，6-三级丁基-4-甲基苯酚。
4.根据权利要求1所述的一种BOPP珠光膜，其特征在于：所述抗静电剂为阴离子抗静电剂。
5.根据权利要求1所述的一种BOPP珠光膜，其特征在于：所述爽滑剂主要成分为α—淀粉酶制剂、β—葡萄糖酶、烷基苯磺酸钠和阿拉伯胶。
6.根据权利要求1所述的一种BOPP珠光膜的制造方法，其特征在于：包括如下步骤，(1)原料过滤，将用于制作表层A、芯层B和表层C的原料用过滤筛逐一进行两次过滤，将过滤的杂质驱除；(2)混料搅拌，将用于制作表层A、芯层B和表层C的原料分别放入搅拌机内进行混料搅拌，搅拌时间3-5分钟，(3)二次过滤，将经过混料搅拌后的原料用过滤筛进行二次过滤，过滤后分别放入挤出机；(4)熔融挤出，在将二次过滤后的混合原料放入挤出机时，事先将挤出机预热，当加热区温度为180-210℃时，再将混合原料放入挤出机，在熔融的过程中，原料在挤出机的作用下塑化、混炼，并经第三和第五加热区的两个排气口经原料上的水分吸出，空气利用真空泵排出，原料经熔融后通过计量泵进入过滤器，然后进入模头；(5)铸片，熔体在模头中分三层流出，模头温度为225-260℃，之后经铸片辊内的冷水进行冷却后形成厚片，铸片辊表面温度为5-12℃，(6)纵向拉伸，在进行纵向拉伸前，厚片事先经预热辊预热后进入纵向拉伸机内进行3-6次纵向拉伸，将其拉伸成薄片，(7)横向拉伸，薄片经纵向拉伸后进入横向拉伸机内进行3-6次横向拉伸，然后再进入定型区进行后进行二次冷却，(8)牵引切边，在牵引切边前，事先进行巡检，用巡检装置或肉眼对薄片进行检查、看是否存在瑕疵，若存在，看在牵引切边过程中是否能修复，之后再进行切边，切边过程中产生的废料送入粉碎机内进行粉碎，(9)收卷，切边完成后利用收卷装置进行收卷，(10)分切，之后将收卷完成的薄膜进行放卷，在放卷过程中将薄膜平铺之后按照规定的尺寸利用分切装置进行分切，(11)验收，对分切后的薄膜进行验收，验收合格包装，验收不合格退回，(12)将验收合格的产品进行包装，最后入库。
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