CN110328944B - 环保型聚烯烃可移标签膜及其制备方法 - Google Patents

环保型聚烯烃可移标签膜及其制备方法 Download PDF

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CN110328944B
CN110328944B CN201910662181.7A CN201910662181A CN110328944B CN 110328944 B CN110328944 B CN 110328944B CN 201910662181 A CN201910662181 A CN 201910662181A CN 110328944 B CN110328944 B CN 110328944B
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王毅刚
王丹旭
袁胜
蚁树雄
邱育渠
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Guangdong Andeli New Materials Co ltd
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Abstract

本发明提供了一种环保型聚烯烃可移标签膜及其制备方法,属于标签膜领域。环保型聚烯烃可移标签膜,包括依次层叠的亮面层、中间层和磨砂层,所述亮面层和所述磨砂层的原料,以质量百分比计,均包括:10‑20%的二元共聚聚丙烯、8‑10%的丙烯‑辛烯共聚物和70‑82%的均聚聚丙烯;所述中间层的原料包括均聚聚丙烯。环保型聚烯烃可移标签膜的制备方法,包括:将所述亮面层、所述中间层和所述磨砂层的原料除尘后按配比分别混合后熔融塑化,然后从三层复合流延模头中共挤出,再经过一组平行对压的压纹辊,冷却并定型后再依次进行切边和电晕处理,收卷即可。本申请提供的环保型聚烯烃可移标签膜,光泽度高,具有良好的可移性能。

Description

环保型聚烯烃可移标签膜及其制备方法
技术领域
本发明涉及标签膜领域,具体而言,涉及一种环保型聚烯烃可移标签膜及其制备方法。
背景技术
可移除标签又叫做环保型标签、N次贴标签、可移性标签、可移贴纸,它在撕去时不会产生痕迹,采用可移胶制作的,可以很容易的从一个背贴物上面揭开然后粘在另外一个背贴物上面,标签完好无损,可以多次重复使用。
可移除性标签材料分为薄膜类和纸张类两种,其中薄膜类标签比纸张类标签更具环保优势。可移标签膜作为可移标签的重要组成部分,其对机械强度、光泽度、胶水在其上的附着力等性能有着很高的要求。因此,开发一种机械强度高、光泽度好,附着力强的标签膜,成为研发的热点。
有鉴于此,特提出本发明。
发明内容
本发明的第一目的在于提供一种环保型聚烯烃可移标签膜,机械强度高、光泽度好,胶水在其上的附着力强。
本发明的第二目的在于提供一种环保型聚烯烃可移标签膜的制备方法,工艺简单,产品质量高,成本低。
为了实现本发明的上述目的,特采用以下技术方案:
一种环保型聚烯烃可移标签膜,包括依次层叠的亮面层、中间层和磨砂层,
所述亮面层和所述磨砂层的原料,以质量百分比计,均包括:10-20%的二元共聚聚丙烯、8-10%的丙烯-辛烯共聚物和70-82%的均聚聚丙烯;
所述中间层的原料包括均聚聚丙烯。
优选地,所述中间层的原料还包括色母粒,所述色母粒占所述中间层总质量的8-15%。
优选地,所述亮面层、所述中间层和所述磨砂层的原料均包括聚丙烯成核剂。
进一步优选地,所述聚丙烯成核剂包括二苄叉山梨醇、二苄叉山梨醇衍生物、芳香基磷酸酯盐、取代苯甲酸盐和羧酸金属盐类中的一种或多种。
优选地,所述环保型聚烯烃可移标签膜的厚度为70-90μm。
更加优选地,所述亮面层、所述中间层和所述磨砂层厚度相等。
可选地,2.16kg压力、190℃条件下,所述亮面层和所述磨砂层中的所述二元共聚聚丙烯的熔融指数为5-8g/10min,所述丙烯-辛烯共聚物的熔融指数为5-8g/10min,所述均聚聚丙烯的熔融指数为10-15g/10min;所述中间层中的均聚聚丙烯的熔融指数为5-10g/10min。
一种所述的环保型聚烯烃可移标签膜的制备方法,包括以下步骤:
将所述亮面层、所述中间层和所述磨砂层的原料除尘后按配比分别混合后熔融塑化,然后从三层复合流延模头中共挤出,再经过一组平行对压的压纹辊,冷却并定型后再依次进行切边和电晕处理,收卷即可。
优选地,所述亮面层和所述磨砂层的熔融塑化的温度阶梯设定为200℃-220℃-240℃-255℃,所述中间层的熔融塑化的温度阶梯设定为200℃-220℃-250℃-260℃,模头温度设定为265℃。
可选地,所述压纹辊包括一根钢辊和一根细磨砂胶辊;所述钢辊为高亮度镜面钢辊或表面粗细度为1000-1200目的细磨砂钢辊,所述细磨砂胶辊的表面粗细度为800-1000目。
与现有技术相比,本发明的有益效果为:
(1)本申请提供的环保型聚烯烃可移标签膜,通过对结构和原料的优化,得到的标签膜机械强度高、光泽度好,胶水在其上的附着力强。
(2)环保型聚烯烃可移标签膜的制备方法,工艺简单,产品质量高,成本低。
具体实施方式
下面将结合实施例对本发明的实施方案进行详细描述,但是本领域技术人员将会理解,下列实施例仅用于说明本发明,而不应视为限制本发明的范围。实施例中未注明具体条件者,按照常规条件或制造商建议的条件进行。所用试剂或仪器未注明生产厂商者,均为可以通过市售购买获得的常规产品。
实施例1
配料:
亮面层和磨砂层:二元共聚聚丙烯20kg、丙烯-辛烯共聚物10kg、均聚聚丙烯70kg;其中,2.16kg压力、190℃条件下,二元共聚聚丙烯的熔融指数为7g/10min,丙烯-辛烯共聚物的熔融指数为8g/10min,均聚聚丙烯的熔融指数为10g/10min;
中间层:均聚聚丙烯100kg;均聚聚丙烯的熔融指数为8g/10min。
制备工艺:
将亮面层、中间层和磨砂层的原料除尘后按配比分别混合后加入加料斗,在螺杆挤出机中熔融塑化,亮面层和磨砂层的熔融塑化的温度阶梯设定为200℃-220℃-240℃-255℃,中间层的熔融塑化的温度阶梯设定为200℃-220℃-250℃-260℃;然后从三层复合流延模头中共挤出,模头温度设定为265℃;再经过一组平行对压的压纹辊,压纹辊包括一根高亮度镜面钢辊和一根表面粗细度为1000目的细磨砂胶辊;然后冷却并定型后再经由数根牵引辊将膜引先后导入切边机和电晕机,依次进行切边和电晕处理,电晕处理功率为800W,挤出车速为45m/min,得到厚度为80μm的环保型聚烯烃可移标签膜,收卷即可。
实施例2
配料:
亮面层和磨砂层:二元共聚聚丙烯13kg、丙烯-辛烯共聚物8kg、均聚聚丙烯79kg;其中,2.16kg压力、190℃条件下,二元共聚聚丙烯的熔融指数为8g/10min,丙烯-辛烯共聚物的熔融指数为7g/10min,均聚聚丙烯的熔融指数为13g/10min;
中间层:均聚聚丙烯87kg,钛白粉色母粒13kg;均聚聚丙烯的熔融指数为10g/10min。
制备工艺:
将亮面层、中间层和磨砂层的原料除尘后加入聚丙烯成核剂二对甲基苄叉山梨醇,按配比分别混合后加入加料斗,在螺杆挤出机中熔融塑化,亮面层和磨砂层的熔融塑化的温度阶梯设定为200℃-220℃-240℃-255℃,中间层的熔融塑化的温度阶梯设定为200℃-220℃-250℃-260℃;然后从三层复合流延模头中共挤出,模头温度设定为265℃;再经过一组平行对压的压纹辊,压纹辊包括一根表面粗细度为1200目的细磨砂钢辊和一根表面粗细度为800目的细磨砂胶辊;然后冷却并定型后再经由数根牵引辊将膜引先后导入切边机和电晕机,依次进行切边和电晕处理,电晕处理功率为800W,挤出车速为45m/min,得到厚度为70μm的环保型聚烯烃可移标签膜,收卷即可。
实施例3
配料:
亮面层和磨砂层:二元共聚聚丙烯10kg、丙烯-辛烯共聚物9kg、均聚聚丙烯81kg;其中,2.16kg压力、190℃条件下,二元共聚聚丙烯的熔融指数为5g/10min,丙烯-辛烯共聚物的熔融指数为5g/10min,均聚聚丙烯的熔融指数为15g/10min;
中间层:均聚聚丙烯85kg,钛白粉色母粒15kg;均聚聚丙烯的熔融指数为5g/10min。
制备工艺:
将亮面层、中间层和磨砂层的原料除尘后加入聚丙烯成核剂二苄叉山梨醇和芳香基磷酸酯盐TMP-5(山西省化工研究所),按配比分别混合后加入加料斗,在螺杆挤出机中熔融塑化,亮面层和磨砂层的熔融塑化的温度阶梯设定为200℃-220℃-240℃-255℃,中间层的熔融塑化的温度阶梯设定为200℃-220℃-250℃-260℃;然后从三层复合流延模头中共挤出,模头温度设定为265℃;再经过一组平行对压的压纹辊,压纹辊包括一根表面粗细度为1000目的细磨砂钢辊和一根表面粗细度为900目的细磨砂胶辊;然后冷却并定型后再经由数根牵引辊将膜引先后导入切边机和电晕机,依次进行切边和电晕处理,电晕处理功率为800W,挤出车速为45m/min,得到厚度为90μm的环保型聚烯烃可移标签膜,收卷即可。
实施例4
配料:
亮面层和磨砂层:二元共聚聚丙烯10kg、丙烯-辛烯共聚物8kg、均聚聚丙烯82kg;其中,2.16kg压力、190℃条件下,二元共聚聚丙烯的熔融指数为6g/10min,丙烯-辛烯共聚物的熔融指数为7g/10min,均聚聚丙烯的熔融指数为12g/10min;
中间层:均聚聚丙烯92kg,钛白粉色母粒8kg;均聚聚丙烯的熔融指数为6g/10min。
制备工艺:
将亮面层、中间层和磨砂层的原料除尘后加入聚丙烯成核剂取代苯甲酸铝盐,按配比分别混合后加入加料斗,在螺杆挤出机中熔融塑化,亮面层和磨砂层的熔融塑化的温度阶梯设定为200℃-220℃-240℃-255℃,中间层的熔融塑化的温度阶梯设定为200℃-220℃-250℃-260℃;然后从三层复合流延模头中共挤出,模头温度设定为265℃,控制三层等厚度;再经过一组平行对压的压纹辊,压纹辊包括一根表面粗细度为1100目的细磨砂钢辊和一根表面粗细度为1000目的细磨砂胶辊;然后冷却并定型后再经由数根牵引辊将膜引先后导入切边机和电晕机,依次进行切边和电晕处理,电晕处理功率为800W,挤出车速为45m/min,得到厚度为90μm的环保型聚烯烃可移标签膜,收卷即可。
比较例1
与实施例1相比,区别在于,不设置亮面层。
比较例2
与实施例2相比,区别在于,不设置中间层。
比较例3
与实施例3相比,区别在于,不设置磨砂层。
比较例4
与实施例4相比,区别在于,亮面层不含丙烯-辛烯共聚物。
分别测试实施例1-4和比较例1-4得到的标签膜的性能,具体测试结果如下表1所示:
表1性能测试结果
Figure BDA0002138919680000071
Figure BDA0002138919680000081
由上表1可知,通过对标签膜层状结构的设置和成分的优化,可以获得机械性能高、透光性能好的标签膜。设置三层结构对标签膜的机械性能存在重大影响。而成分和用量的选择,主要对光泽度和透光性产生影响。膜的厚度也对性能有一定影响。
此外,本申请提供的环保型聚烯烃可移标签膜,亮面印刷鲜亮、饱满、精美,且能够很好的满足后期烫金、UV上光油和覆膜的要求。
尽管已用具体实施例来说明和描述了本发明,然而应意识到,在不背离本发明的精神和范围的情况下可以作出许多其它的更改和修改。因此,这意味着在所附权利要求中包括属于本发明范围内的所有这些变化和修改。

Claims (6)

1.一种环保型聚烯烃可移标签膜,其特征在于,包括依次层叠的亮面层、中间层和磨砂层,所述亮面层和所述磨砂层的原料,以质量百分比计,均包括:10-20%的二元共聚聚丙烯、8-10%的丙烯-辛烯共聚物和70-82%的均聚聚丙烯;
所述中间层的原料包括均聚聚丙烯;
所述中间层的原料还包括钛白粉色母粒,所述钛白粉色母粒占所述中间层总质量的8-15%;
所述亮面层、所述中间层和所述磨砂层的原料均包括聚丙烯成核剂,所述聚丙烯成核剂包括二苄叉山梨醇、二苄叉山梨醇衍生物、芳香基磷酸酯盐、取代苯甲酸盐和羧酸金属盐类中的一种或多种;
2.16kg压力、190℃条件下,所述亮面层和所述磨砂层中的所述二元共聚聚丙烯的熔融指数为5-8g/10min,所述丙烯-辛烯共聚物的熔融指数为5-8g/10min,所述均聚聚丙烯的熔融指数为10-15g/10min;所述中间层中的均聚聚丙烯的熔融指数为5-10g/10min。
2.根据权利要求1所述的环保型聚烯烃可移标签膜,其特征在于,所述环保型聚烯烃可移标签膜的厚度为70-90μm。
3.根据权利要求2所述的环保型聚烯烃可移标签膜,其特征在于,所述亮面层、所述中间层和所述磨砂层厚度相等。
4.一种权利要求1-3任一项所述的环保型聚烯烃可移标签膜的制备方法,其特征在于,包括以下步骤:
将所述亮面层、所述中间层和所述磨砂层的原料除尘后按配比分别混合后熔融塑化,然后从三层复合流延模头中共挤出,再经过一组平行对压的压纹辊,冷却并定型后再依次进行切边和电晕处理,收卷即可。
5.根据权利要求4所述的制备方法,其特征在于,所述亮面层和所述磨砂层的熔融塑化的温度阶梯设定为200℃-220℃-240℃-255℃,所述中间层的熔融塑化的温度阶梯设定为200℃-220℃-250℃-260℃,模头温度设定为265℃。
6.根据权利要求5所述的制备方法,其特征在于,所述压纹辊包括一根钢辊和一根细磨砂胶辊;所述钢辊为高亮度镜面钢辊或表面粗细度为1000-1200目的细磨砂钢辊,所述细磨砂胶辊的表面粗细度为800-1000目。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949971A (ja) * 1982-09-14 1984-03-22 東レ株式会社 擬紙化ポリオレフインフイルム
JPH0387255A (ja) * 1989-08-31 1991-04-12 Oji Yuka Synthetic Paper Co Ltd 複層樹脂フィルムよりなる合成紙
CN1659030A (zh) * 2002-06-26 2005-08-24 艾利丹尼森公司 包括聚丙烯/烯烃弹性体混合物的取向膜
CN206825915U (zh) * 2016-12-08 2018-01-02 上海新上化高分子材料有限公司 用于制备防粘型腹膜透析袋的压延薄膜压纹装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5949971A (ja) * 1982-09-14 1984-03-22 東レ株式会社 擬紙化ポリオレフインフイルム
JPH0387255A (ja) * 1989-08-31 1991-04-12 Oji Yuka Synthetic Paper Co Ltd 複層樹脂フィルムよりなる合成紙
CN1659030A (zh) * 2002-06-26 2005-08-24 艾利丹尼森公司 包括聚丙烯/烯烃弹性体混合物的取向膜
CN206825915U (zh) * 2016-12-08 2018-01-02 上海新上化高分子材料有限公司 用于制备防粘型腹膜透析袋的压延薄膜压纹装置

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