CN105584178A - 一种彩色收缩膜及其制备方法 - Google Patents

一种彩色收缩膜及其制备方法 Download PDF

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CN105584178A
CN105584178A CN201610017632.8A CN201610017632A CN105584178A CN 105584178 A CN105584178 A CN 105584178A CN 201610017632 A CN201610017632 A CN 201610017632A CN 105584178 A CN105584178 A CN 105584178A
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layers
film
shrink film
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colored
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马莉娜
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DONGGUAN HUAYU PACKING Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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    • B29C48/001—Combinations of extrusion moulding with other shaping operations
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    • B32—LAYERED PRODUCTS
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    • B32—LAYERED PRODUCTS
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    • B32B27/00—Layered products comprising a layer of synthetic resin
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    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
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    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/402—Coloured
    • B32B2307/404—Multi-coloured
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    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/046—LDPE, i.e. low density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
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    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
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Abstract

本发明现提供一种彩色收缩膜，种彩色收缩膜，包括中间的PE层和上下两表层的PP层组成，由以下原料加工制得，各原料重量份数如下：PE？58-88；色母1-5；PP？10-40。所述PE层包括三层，3层的原料均为LLDPE？2045G、LLDPE？4203和LLDPE？OF07，本发明的彩色收缩膜中间采用三层PE层，表面两层PP层，其中PE层为3种PE原料和色母混合制成的薄膜压合而成，表面的PP层材料中包含润滑剂，色彩明亮并且收缩效果优良。

Description

一种彩色收缩膜及其制备方法
技术领域
本发明属于包装材料领域，具体涉及一种彩色收缩膜及其制备方法。
背景技术
收缩膜主要用于多种产品的运输和销售过程中的包装，主要作用使稳固、遮盖和保护产品，收缩膜必须有一定的耐穿刺性、良好的收缩性和一定的收缩应力。但透明的收缩膜不能为产品提供更多的个性展示和区分效果，为此，如果能有一种带有色彩的收缩膜，可以将不同产品按颜色进行不同颜色的包装，将会受到市场的极大欢迎。
发明内容
本发明的目的主要是针对现有技术中的问题，现提供一种彩色收缩膜及其制备方法。
为实现本发明的目的，本发明提供了以下技术方案：
一种彩色收缩膜，包括中间的PE层和上下两表层的PP层组成，由以下原料加工制得，各原料重量份数如下：
PE58-88；
色母1-5；
PP10-40。
所述PE层包括三层，3层的原料包括LLDPE2045G、LLDPE4203和LLDPEOF07，各原料所占的重量比例为：
LLDPE2045G20-50；
LLDPE420320-50
LLDPEOF070.2-5。
所述色母包括桔黄色母E-204和浅黄色母E203，重量份数比为桔黄色母E-204：浅黄色母E203=1.2-2:1。
PP层原料中包括PS6612L、ABP0F0-I和SP0F07，重量份数为：
FS6612L20-40；
ABP0F0-I0.5-2；
SP0F070.2-2。
所述2层PP层的厚度为0.5-5μm,PE层的总厚度为7-10μm。
一种彩色收缩膜的制备方法，步骤为：a、混料，将PE料LLDPE2045G、LLDPE4203和LLDPEOF07物料按照比例进行混合，然后和色母进行混匀；将PP料FS6612L、ABP0F0-I和IL2582SC按照比例混合，b、在150℃-200℃的条件下将PE料挤出拉伸制得3层彩色薄膜，然后在150℃-200℃的条件下将PP料挤出拉伸制成2层PP薄膜；c、将2层PP薄膜在外，3层PE彩色薄膜在内通过200℃-300℃的高温热压形成彩色复合薄膜；d将彩色复合薄膜进行电晕处理，冷却，收卷，制得本发明所述的彩色收缩膜。
本发明的优点在于：
1、本发明的彩色收缩膜中间采用三层PE+色母形成的PE彩色层，表面两层PP层，这样包装时彩色薄膜中的色母部分不会接触到包装物，因为有表面的PP层阻挡，提高了彩色收缩膜的质量。
2、表面的PP层材料中包含具有润滑效果的ABP0F0-I，收缩效果最好，表面摩擦系数大幅降低。
3、本发明制备方法中采用分别挤出3层彩色PE薄膜和2层PP薄膜，然后经过热压压合，再经过电晕，制得的彩色收缩膜颜色亮丽并且透明效果好，而且耐应力强。
具体实施方式
为了更详细地说明本发明，给出下述制备实例。但本发明的范围并不局限于此。
实施例1
取原料以及重量如下：
LLDPE2045G3300g；
LLDPE42033500g；
LLDPEOF07200g；
FS6612L2960g；
ABP0F0-I20g；
SP0F0750g；
桔黄色母E-20421g；
浅黄色母E20314g；
制备方法为：a、混料，将PE料LLDPE2045G、LLDPE4203和LLDPEOF07物料按照比例进行混合，然后和色母进行混匀；将PP料FS6612L、ABP0F0-I和IL2582SC按照比例混合，b、在150℃-200℃的条件下将PE料挤出拉伸制得3层彩色薄膜，然后在150℃-200℃的条件下将PP料挤出拉伸制成2层PP薄膜；c、将2层PP薄膜在外，3层PE彩色薄膜在内通过280℃的高温热压形成彩色复合薄膜；d将彩色复合薄膜进行电晕处理，冷却，收卷，制得实施例1的彩色收缩膜。
实施例2
取原料以及重量如下：
LLDPE2045G3500g；
LLDPE42033500g；
LLDPEOF07150g；
FS6612L2810g；
ABP0F0-I15g；
SP0F0770g；
桔黄色母E-20420g；
浅黄色母E20313g；
制备方法为：a、混料，将PE料LLDPE2045G、LLDPE4203和LLDPEOF07物料按照比例进行混合，然后和色母进行混匀；将PP料FS6612L、ABP0F0-I和IL2582SC按照比例混合，b、在150℃-200℃的条件下将PE料挤出拉伸制得3层彩色薄膜，然后在150℃-200℃的条件下将PP料挤出拉伸制成2层PP薄膜；c、将2层PP薄膜在外，3层PE彩色薄膜在内通过300℃的高温热压形成彩色复合薄膜；d将彩色复合薄膜进行电晕处理，冷却，收卷，制得实施例2的彩色收缩膜。
实施例3
取原料以及重量如下：
LLDPE2045G3800g；
LLDPE42033200g；
LLDPEOF07200g；
FS6612L2760g；
ABP0F0-I30g；
SP0F0780g；
桔黄色母E-20422g；
浅黄色母E20314g；
制备方法为：a、混料，将PE料LLDPE2045G、LLDPE4203和LLDPEOF07物料按照比例进行混合，然后和色母进行混匀；将PP料FS6612L、ABP0F0-I和IL2582SC按照比例混合，b、在150℃-200℃的条件下将PE料挤出拉伸制得3层彩色薄膜，然后在150℃-200℃的条件下将PP料挤出拉伸制成2层PP薄膜；c、将2层PP薄膜在外，3层PE彩色薄膜在内通过230℃的高温热压形成彩色复合薄膜；d将彩色复合薄膜进行电晕处理，冷却，收卷，制得实施例3的彩色收缩膜。
实施例4
取原料以及重量如下：
LLDPE2045G3600g；
LLDPE42033300g；
LLDPEOF07300g；
FS6612L3000g；
ABP0F0-I10g；
SP0F0790g；
桔黄色母E-20423g；
浅黄色母E20315g；
制备方法为：a、混料，将PE料LLDPE2045G、LLDPE4203和LLDPEOF07物料按照比例进行混合，然后和色母进行混匀；将PP料FS6612L、ABP0F0-I和IL2582SC按照比例混合，b、在150℃-200℃的条件下将PE料挤出拉伸制得3层彩色薄膜，然后在150℃-200℃的条件下将PP料挤出拉伸制成2层PP薄膜；c、将2层PP薄膜在外，3层PE彩色薄膜在内通过260℃的高温热压形成彩色复合薄膜；d将彩色复合薄膜进行电晕处理，冷却，收卷，制得实施例4的彩色收缩膜。
将实施例1-4制备的彩色收缩膜进行性能测试，结果如下：
性能 单位 测试方法 实施例1 实施例2 实施例3 实施例4
坚韧度 N/mm2 ASTM-D882A 350/420 360/450 350/440 400/4803 -->
拉伸强度 N/mm2 ASTM/882 100/100 100/100 105/105 110/110
拉伸极限 % ASTM/882 105/105 110/110 105/105 115/115
封口强度 g/cm3 internal 900 1130 1025 1250
抗撕裂度 g/cm3 ASTM-D1938 9.5 13.8 11.5 14.2
摩擦系数 ADIM ASTM-D1894 0.26 0.15 0.28 0.20
通过以上实施例可以得知，本发明与现有技术相比，在拉伸强度和坚韧度不变的前提下，本发明的彩色收缩膜封口强度较强，实施例2和实施例4，其他性能不变的情况下，摩擦系数明显降低，并且拉伸强度和封口强度比现有的收缩膜有明显提高。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求的保护范围为准。

Claims (6)

1.一种彩色收缩膜，包括中间的PE层和上下两表层的PP层组成，其特征在于：由以下原料加工制得，各原料重量份数如下：
PE58-88；
色母1-5；
PP10-40。
2.根据权利要求1所述的彩色收缩膜，其特征在于：所述PE层包括三层，3层的原料包括LLDPE2045G、LLDPE4203和LLDPEOF07，各原料所占的重量比例为：
LLDPE2045G20-50；
LLDPE420320-50
LLDPEOF070.2-5。
3.根据权利要求1所述的彩色收缩膜，其特征在于：所述色母包括桔黄色母E-204和浅黄色母E203，重量份数比为桔黄色母E-204：浅黄色母E203=1.2-2:1。
4.根据权利要求1所述的彩色收缩膜，其特征在于：PP层原料中包括PS6612L、ABP0F0-I和SP0F07，重量份数为：
FS6612L20-40；
ABP0F0-I0.5-2；
SP0F070.2-2。
5.根据权利要求4所述的彩色收缩膜，其特征在于：所述2层PP层的厚度为0.5-5μm,PE层的总厚度为7-10μm。
6.一种权利要求1-5任一项所述的彩色收缩膜的制备方法，步骤为：a、混料，将PE料LLDPE2045G、LLDPE4203和LLDPEOF07物料按照比例进行混合，然后和色母进行混匀；将PP料FS6612L、ABP0F0-I和IL2582SC按照比例混合，b、在150℃-200℃的条件下将PE料挤出拉伸制得PE彩色薄膜，然后在150℃-200℃的条件下将PP料挤出拉伸制成PP薄膜；c、将2层PP薄膜在外，3层PE彩色薄膜在内通过200℃-300℃的高温热压形成彩色复合薄膜；d将彩色复合薄膜进行电晕处理，冷却，收卷，制得权利要求1-5任一项所述的彩色收缩膜。
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CN103087423A (zh) * 2011-11-07 2013-05-08 中国石油化工股份有限公司 一种聚合物膜用组合物以及聚合物膜和多层膜
CN203945770U (zh) * 2014-05-06 2014-11-19 东莞市华宇包装有限公司 一种包装用pof彩色收缩薄膜

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WO2007088092A1 (en) * 2006-02-02 2007-08-09 Basell Polyolefine Gmbh Multilayer thermoshrinkable films
CN101049750A (zh) * 2007-04-20 2007-10-10 上海紫泉标签有限公司 防粘热收缩薄膜
CN103087423A (zh) * 2011-11-07 2013-05-08 中国石油化工股份有限公司 一种聚合物膜用组合物以及聚合物膜和多层膜
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