CN114250038A - 一种可印刷的环保贴膜及其制备方法 - Google Patents

一种可印刷的环保贴膜及其制备方法 Download PDF

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CN114250038A
CN114250038A CN202111672062.3A CN202111672062A CN114250038A CN 114250038 A CN114250038 A CN 114250038A CN 202111672062 A CN202111672062 A CN 202111672062A CN 114250038 A CN114250038 A CN 114250038A
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张宝敏
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Abstract

本发明公开了一种可印刷环保的降解贴膜,包括依次层叠的离心层、压敏胶层和薄膜层,其特征在于,所述的薄膜层由下列重量百分比的原料配制而成:聚乙烯树脂10‑70%、聚乙烯醋酸乙烯树脂20‑80%、氯乙烯醋酸乙烯树脂0‑30%、钛白粉0‑40%、碳酸钙0‑40%、光稳定剂0‑1.5%、防霉抗菌剂0‑5%、消泡剂0‑3%。本发明提供的可印刷的环保贴膜,可完全替代传统的PVC贴膜,即可满足油墨印刷的适应性,又完全不含任何增塑剂,环保无毒性,便于有效降解。在薄膜加入光稳定剂,增加膜的吸光性,从而加速降解。薄膜层降解后,残余成分完全无毒无害。本发明产生的预料不到的效果是即可解决PVC膜降解的环保问题,又能满足各类印刷要求。

Description

一种可印刷的环保贴膜及其制备方法
技术领域
本发明涉及可印刷的贴膜材料,尤其涉及一种可用作广告标识及标签的环保贴膜及其制备方法。
背景技术
目前,在广告标识及标签材料中,PVC贴膜的使用量非常大,使用范围非常广泛。但是因为PVC材料中含有大量的增塑剂,其带有有毒的致癌物质。所以PVC材料后期降解过程,对环境污染的问题日益突出和严峻。但是,因为PVC材料有较高的表面极性,表面不需要做任何处理就可以适合印刷图案,而且PVC材料有较好的拉伸性能,能够贴在曲面的物体表面,所以市场上没有合适的替代材料。由于PVC材料对环境的污染问题,欧洲早已出台法律,逐步禁止PVC材料的使用,国内随着环保要求的逐步提高,对PVC材料的限制使用会越来越多,所以急需有一种PVC贴膜的替代材料来解决上诉问题。
因此,提供一种怎样的材料用于替代现有可印刷的PVC贴膜材料是业界亟待解决的技术解决。
发明内容
本发明为了解决现有可印刷的PVC贴膜材料不环保的技术解决,提供一种既具有良好的拉伸性能,又具备广泛的油墨印刷适应性,并不含任何增塑剂和环保可降解的贴膜及其制备方法,以便替代现有可印刷的PVC贴膜材料。
本发明提供的一种可印刷环保的降解贴膜,包括依次层叠的离心层、压敏胶层和薄膜层,其特征在于,所述的薄膜层由下列重量百分比的原料配制而成:
聚乙烯树脂10-70%、聚乙烯醋酸乙烯树脂20-80%、氯乙烯醋酸乙烯树脂0-30%、
钛白粉0-40%、碳酸钙0-40%、光稳定剂0-1.5%、防霉抗菌剂0-5%、消泡剂0-3%。
优选的,所述薄膜层的厚度为0.04-0.4mm。
优选的,所述压敏胶层的厚度为0.01-0.08mm。
优选的,所述的离心层为离型纸或离型塑料膜。
优选的,所述的薄膜层是通过流延挤出方式或多辊压延的方式形成的厚度均匀的薄膜层。
本发明还提供了一种可印刷的环保贴膜的制备方法,步骤如下:
步骤1、根据所述可印刷的环保降解贴膜的原料配方称取各种原料的用量;
步骤2、将所述原料充分混合均匀后通过螺杆挤出机挤出,并通用辊筒压延成0.04-0.4mm厚的薄膜;
步骤3、在离型纸上均匀涂布一层丙乙烯酸压敏胶,并烤干,该丙乙烯酸压敏胶的厚度控制在0.01-0.08mm,然后将该层丙乙烯酸压敏胶层与所述的薄膜通过复合辊复合在一起,制得所述的可印刷环保的降解贴膜。
本发明提供的可印刷的环保贴膜,可完全替代传统的PVC贴膜,即可满足油墨印刷的适应性,又完全不含任何增塑剂,环保无毒性,便于有效降解。在薄膜加入光稳定剂,增加膜的吸光性,从而加速降解。薄膜层降解后,残余成分完全无毒无害。本发明产生的预料不到的效果是即可解决PVC膜降解的环保问题,又能满足各类印刷要求。
附图说明
图1是本发明环保贴膜实施例的剖视示意图。
具体实施方式
下面结合实施例和附图对本发明作详细的说明。
本发明提供的一种可印刷环保的降解贴膜,包括依次层叠的离心层1、压敏胶层2和薄膜层3。所述的薄膜层由下列重量百分比的原料配制而成:
聚乙烯树脂10-70%、聚乙烯醋酸乙烯树脂20-80%、氯乙烯醋酸乙烯树脂0-30%、
钛白粉0-40%、碳酸钙0-40%、光稳定剂0-1.5%、防霉抗菌剂0-5%、消泡剂0-3%。
根据需要,可以采用不同的原料配比(重量百分比)制备降解贴膜材料,如,采用下表但不限于下表1给出的六种实施例的配方:
Figure BDA0003453305150000021
表1
本发明所述薄膜层的厚度为0.04-0.4mm。所述压敏胶层的厚度为0.01-0.08mm。所述的底层为离型纸或离型塑料膜。所述的薄膜层是通过流延挤出方式或多辊压延的方式形成的厚度均匀的薄膜层。
本发明还提供了一种可印刷的环保贴膜的制备方法,步骤如下:
步骤1、根据所述可印刷的环保降解贴膜的原料配方称取各种原料的用量;
步骤2、将所述原料充分混合均匀后通过螺杆挤出机挤出,并通用辊筒压延成0.04-0.4mm厚的薄膜;
步骤3、在离型纸上均匀涂布一层丙乙烯酸压敏胶,并烤干,该丙乙烯酸压敏胶的厚度控制在0.01-0.08mm,然后将该层丙乙烯酸压敏胶层与所述的薄膜通过复合辊复合在一起,制得所述的可印刷环保的降解贴膜。
本发明除了表1给出配方之外,还可以通过下面具体实施例7~实施例11详细明本发明的制备方法,请结合附图1:
实施例7
称取原料的用量:聚乙烯树脂35份、聚乙烯醋酸乙烯树脂40份、钛白粉15份、碳酸钙5份、光稳定剂2-羟基-4-正辛氧基二甲苯铜0.8份、防霉抗菌剂对氯间二甲基苯酚2份、消泡剂2.2份,经充分混合均匀后,通过螺杆挤出机挤出,并通过辊筒压延成0.1mm厚的薄膜3。另外在一离型纸1上均匀涂布一层丙乙烯酸压敏胶2,通过烤箱彻底烘干,胶的厚度控制在0.03mm厚,然后将丙乙烯酸压敏胶层2与所述0.1mm厚的薄膜3通过复合辊复合在一起,制得所述的可印刷的环保贴膜。
实施例8
称取原料用量:聚乙烯树脂40份、聚乙烯醋酸乙烯树脂40份、氯乙烯醋酸乙烯树脂15份、光稳定剂4-苯甲酰氧基-2,2,6,6-四甲基呱啶1份、防霉抗菌剂2.5份、消泡剂1.5份,经充分混合后,通过流延工艺形成0.12mm厚的薄膜3。另外在离型膜1表面均匀涂布一层丙烯酸压敏胶2,并通过烤箱彻底干燥,胶的厚度控制在0.025mm,然后将丙乙烯酸压敏胶层2与所述0.12mm厚的薄膜3通过复合辊复合在一起,制得所述的可印刷的环保贴膜。
实施例9
称取原料用量:聚乙烯树脂50份、聚乙烯醋酸乙烯树脂30份、氯乙烯醋酸乙烯树脂8份、钛白粉8份、光稳定剂三(1.2.2.6.6-五甲呱啶基)亚磷酸脂0.8份、防霉抗菌剂邻苯基苯酚钠2份、消泡剂1.2份,经充分混合后,通过流延方式形成0.15mm厚的薄膜3。另外在离型纸1表面均匀涂布一层丙烯酸压敏胶2,并通过烤箱彻底烘干,胶的厚度控制在0.04mm厚,然后将丙烯酸压敏胶层2与所述0.15mm厚的薄膜3通过复合辊复合在一起,制得所述的可印刷的环保贴膜。
实施例10
称取原料用量:聚乙烯树脂45份、聚乙烯醋酸乙烯树脂48份、光稳定剂2羟基-4-辛氧基二苯甲酮1.5份、防霉抗菌剂邻苯基苯酚钠1.5份、消泡剂3份、充分混合通过流延方式形成0.1mm厚的薄膜3。另外在离型膜1表面均匀涂布一层有机硅压敏胶2,并通过烤箱彻底烘干,胶的厚度控制在0.02mm,然后将有机硅压敏胶层2与所述0.1mm厚的薄膜3通过复合辊复合在一起,制得所述的可印刷的环保贴膜。
实施例11
称取原料用量:聚乙烯树脂60份、聚乙烯醋酸乙烯树脂20份、钛白粉15份、光稳定剂2羟基-4-正辛氧基二苯甲铜1.2份、防霉抗菌剂对氯间二甲苯酚1.5份、消泡剂2.3份、通过压延成膜方式形成0.12mm厚的薄膜3。另外在离型纸1表面均匀涂布一层丙烯酸压敏胶2,并通过烤箱彻底烘干,胶的厚度控制在0.025厚,然后将丙烯酸压敏胶层2与所述0.12mm厚的薄膜3通过复合辊复合在一起,制得所述的可印刷的环保贴膜。
本发明提供的可印刷的环保贴膜,可完全替代传统的PVC贴膜,即可满足油墨印刷的适应性,又完全不含任何增塑剂,环保无毒性,便于有效降解。现有贴膜中的增塑剂主要作用是增加膜的柔软性和拉伸性能,本发明的薄膜中含有较大比例的聚乙烯醋酸乙烯树脂,而这些树脂本身具有很好的柔软性和拉伸性能,所以本发明可以除去传统原料增塑剂。从根本上解决了现有技术不环保的问题,给社会带来了社会效益及巨大的经济效益。
以上结合实施方式对本发明进行了具体描述,但是本技术领域内的技术人员可以对这些实施方式作出多种变更或变化,这些变更和变化应落入本发明保护范围之内。

Claims (7)

1.一种可印刷环保的降解贴膜,包括依次层叠的离心层、压敏胶层和薄膜层,其特征在于,所述的薄膜层由下列重量百分比的原料配制而成:
聚乙烯树脂 10-70%、聚乙烯醋酸乙烯树脂20-80%、氯乙烯醋酸乙烯树脂0-30%、
钛白粉0-40%、碳酸钙0-40%、光稳定剂0-1.5%、防霉抗菌剂0-5%、消泡剂0-3%。
2.如权利要求1所述的降解贴膜,其特征在于,所述薄膜层的厚度为0.04-0.4mm。
3.如权利要求1所述的降解贴膜,其特征在于,所述压敏胶层的厚度为0.01-0.08mm。
4.如权利要求1所述的降解贴膜,其特征在于,所述的离心层为离型纸或离型塑料膜。
5.如权利要求1所述的降解贴膜,其特征在于,所述的薄膜层是通过流延挤出方式或多辊压延的方式形成的厚度均匀的薄膜层。
6.如权利要求1所述的降解贴膜,其特征在于,所述的薄膜层为即能够承受印刷又能够承受拉伸的环保薄膜层。
7.一种如权利要求1至6任一项所述降解贴膜的制备方法,其特征在于,包括如下步骤:
步骤1、根据所述可印刷的环保降解贴膜的原料配方称取各种原料的用量;
步骤2、将所述原料充分混合均匀后通过螺杆挤出机挤出,并通用辊筒压延成0.04-0.4mm厚的薄膜;
步骤3、在离型纸上均匀涂布一层丙乙烯酸压敏胶,并烤干,该丙乙烯酸压敏胶的厚度控制在0.01-0.08mm,然后将该层丙乙烯酸压敏胶层与所述的薄膜通过复合辊复合在一起,制得所述的可印刷环保的降解贴膜。
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CN110452627A (zh) * 2018-05-07 2019-11-15 上海纳尔实业股份有限公司 Pp背胶贴膜及其制造方法
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JP2015117326A (ja) * 2013-12-19 2015-06-25 Jx日鉱日石エネルギー株式会社 印刷用フィルム
CN110452627A (zh) * 2018-05-07 2019-11-15 上海纳尔实业股份有限公司 Pp背胶贴膜及其制造方法
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