CN116656267A - 一种具有信息储存及读取功能的防伪转移材料及其制备方法 - Google Patents

一种具有信息储存及读取功能的防伪转移材料及其制备方法 Download PDF

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CN116656267A
CN116656267A CN202310598028.9A CN202310598028A CN116656267A CN 116656267 A CN116656267 A CN 116656267A CN 202310598028 A CN202310598028 A CN 202310598028A CN 116656267 A CN116656267 A CN 116656267A
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CN116656267B (zh
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林雪峰
陆游
郑勇
陆霞琴
王靖靖
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Hengfeng Material Technology Zhejiang Co ltd
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Abstract

本发明涉及一种具有信息储存及读取功能的防伪转移材料及其制备方法，属于全息防伪技术领域。所述的一种具有信息储存及读取功能的防伪转移材料，其结构上依次有聚酯薄膜、分离层、全息防伪层、信息承载层、金属镀层、热熔胶层。本发明在保持防伪转移材料全息防伪性能的基础上增加了信息储存及读取功能，可广泛应用于各类防伪标识、磁卡等领域，具有：防伪性好、转移效果优的特点。

Description

一种具有信息储存及读取功能的防伪转移材料及其制备方法
技术领域
本发明涉及的是一种具有信息储存及读取功能的防伪转移材料及其制备方法，属于全息防伪技术领域。本发明在保持转移材料全息防伪性能的基础上增加了信息储存及读取功能，可广泛应用于各类防伪标识、磁卡等领域，具有：防伪性好、转移效果优的特点。
背景技术
防伪转移材料是一种有多学科相融合而成，结合了高分子材料学、全息模压技术、光学、机械及真空技术，具有使用便捷、高效、图文精美等特点，可突显外观效果且具备全息防伪性能，已广泛应用于各类防伪标识领域。随着现阶段信息技术的蓬勃发展和应用普及，实现防伪转移材料和信息技术的有效融合，在原有全息防伪性能的基础上增加信息储存及读取功能，对现有技术来说是一次突破性的技术创新，丰富使用功能并可进一步拓宽应用领域，符合行业领域发展趋势。
发明内容
本发明的目的在于提供一种保持防伪转移材料全息防伪性能的基础上增加了信息储存及读取功能，具有：防伪性好、转移效果优的特点的一种具有信息储存及读取功能的防伪转移材料及其制备方法。
为了实现上述目的，本发明采用的技术方案如下：
一种具有信息储存及读取功能的防伪转移材料，其特征在于，结构上依次有聚酯薄膜、分离层、全息防伪层、信息承载层、金属镀层、热熔胶层；所述的分离层在一定剥离力的作用下能与聚酯薄膜有效分离；所述的全息防伪层可根据不同的全息镍版而制作出不同类型防伪图文，并呈现不同的全息镭射效果；所述的信息承载层是一道不影响光学效果的透明涂层，是实现信息储存及读取功能的主体涂层；所述的金属镀层可使转移图文具备金属光泽度；所述的热熔胶层在一定温度下能迅速熔融，在压力的同时作用下能与承印基材有效黏合。
如权利要求1所述的一种具有信息储存及读取功能的防伪转移材料，其特征在于：
1)所述的聚酯薄膜为非电晕双向拉伸BOPET膜，厚度为18-30μm；
2)所述的分离层是将离型剂通过涂布机涂覆得到的；所述的离型剂按质量份数计包括：达玛树脂2-8份、马来酸改性硬质氯化聚烯烃树脂1-5份、甲基纤维素1-3份、稀释剂25-60份；
其中，所述的达玛树脂的软化点为90℃；所述的马来酸改性硬质氯化聚烯烃树脂的分子量为3-5万、Tg为45℃；所述的甲基纤维素的聚合度为300-350；所述的稀释剂以乙酯、丁酮、异丙醇、烷基酚聚氧乙烯醚按质量比30：20：6：1混合而成；
3)所述的全息防伪层是将模压涂料通过涂布机涂覆，再经全息模压得到的；所述的模压涂料按质量份数计包括：热塑性EVA树脂2-10份、甲苯二异氰酸酯1-6份、氯化聚丙烯树脂1-5份、硝酸纤维素0-3份、络合染料0-5份、稀释剂20-60份；
其中，所述的热塑性EVA树脂的软化点为95-100℃、拉伸强度为20Mpa；所述的甲苯二异氰酸酯的软化点为100℃；所述的氯化聚丙烯树脂的氯含量在26％；所述的络合染料的耐热性为210℃下≥10秒；所述的稀释剂以丁酮、正丙酯、异丁酯、戊酮按质量比10：5：2：2混合而成；
4)所述的信息承载层是将磁性涂料通过涂布机和挤压辊涂覆得到的；所述的磁性涂料按质量份数计包括：铁氧体/氧化锌纳米复合材料粉末2-10份、热固性聚氨酯2-6份、松香改性酚醛树脂1-5份、二乙烯基三胺0-2份、乙酸乙酯5-15份、丙酮1-5份；
5)所述的金属镀层是将金属材料通过真空镀膜设备蒸镀得到的；
其中，所述的金属材料为纯度99.9％以上的铝、铜、镍、锌中的任何一种；
6)所述的热熔胶层是将热熔胶涂料通过涂布机涂覆得到的；所述的热熔胶涂料按质量份数计包括：聚酯树脂2-8份、聚酰胺树脂1-5份、氨基树脂1-5份、硝酸纤维素0-2份、二氧化硅粉0-3份、乙酸乙酯10-50份、正丁酯5-15份。
如权利要求1所述的一种具有信息储存及读取功能的防伪转移材料的制备方法，其特征在于，包括以下步骤：
1)使用涂布机，将离型剂涂覆至聚酯薄膜表面，控制干涂量1.35-1.85g/m2，制得分离层；
2)使用涂布机，将模压涂料涂覆至分离层表面，控制干涂量1.6-2.35g/m2，形成待模压层；再使用模压设备、全息镍版，设定模压温度180-210℃，设定模压压力10-15kg/m 2，制得全息防伪层；
3)使用涂布机、挤压辊，将磁性涂料涂覆至全息防伪层表面，控制干涂量4-8g/m2，制得信息承载层；
4)使用真空镀膜设备，将纯度99.9％以上的铝、铜、镍、锌中的任何一种金属材料均匀蒸镀在信息承载层表面，控制镀层厚度在700-850埃之间，制得金属镀层；
5)使用涂布机，将热熔胶涂料涂覆至金属镀层表面，控制干涂量1.85-2.85g/m2，制得热熔胶层。
本发明与现有技术相比，在保持防伪转移材料全息防伪性能的基础上增加了信息储存及读取功能，具有：防伪性好、转移效果优的特点。
具体实施方式
以下结合具体实施例，对本发明作进一步详细说明：
实施例1
一种具有信息储存及读取功能的防伪转移材料，其特征在于，结构上依次有聚酯薄膜、分离层、全息防伪层、信息承载层、金属镀层、热熔胶层；所述的分离层在一定剥离力的作用下能与聚酯薄膜有效分离；所述的全息防伪层可根据不同的全息镍版而制作出不同类型防伪图文，并呈现不同的全息镭射效果；所述的信息承载层是一道不影响光学效果的透明涂层，是实现信息储存及读取功能的主体涂层；所述的金属镀层可使转移图文具备金属光泽度；所述的热熔胶层在一定温度下能迅速熔融，在压力的同时作用下能与承印基材有效黏合。
按下表要求准备所需物料：
一种具有信息储存及读取功能的防伪转移材料的制备方法，具体步骤如下：
1)使用涂布机，将离型剂涂覆至聚酯薄膜表面，控制干涂量1.35-1.5g/m2,制得分离层；
2)使用涂布机，将模压涂料涂覆至分离层表面，控制干涂量1.6-1.8g/m2,形成待模压层；再使用模压设备、全息镍版，设定模压温度190℃，设定模压压力10kg/m 2，制得全息防伪层；
3)使用涂布机、挤压辊，将磁性涂料涂覆至全息防伪层表面，控制干涂量4-5g/m2，制得信息承载层；
4)使用真空镀膜设备，将金属材料均匀蒸镀在信息承载层表面，控制镀层厚度在700-850埃之间，制得金属镀层；
5)使用涂布机，将热熔胶涂料涂覆至金属镀层表面，控制干涂量1.85-2.15g/m2，制得热熔胶层。
实施例2
一种具有信息储存及读取功能的防伪转移材料，其特征在于，结构上依次有聚酯薄膜、分离层、全息防伪层、信息承载层、金属镀层、热熔胶层；所述的分离层在一定剥离力的作用下能与聚酯薄膜有效分离；所述的全息防伪层可根据不同的全息镍版而制作出不同类型防伪图文，并呈现不同的全息镭射效果；所述的信息承载层是一道不影响光学效果的透明涂层，是实现信息储存及读取功能的主体涂层；所述的金属镀层可使转移图文具备金属光泽度；所述的热熔胶层在一定温度下能迅速熔融，在压力的同时作用下能与承印基材有效黏合。
按下表要求准备所需物料：
一种具有信息储存及读取功能的防伪转移材料的制备方法，具体步骤如下：
1)使用涂布机，将离型剂涂覆至聚酯薄膜表面，控制干涂量1.55-1.80g/m2,制得分离层；
2)使用涂布机，将模压涂料涂覆至分离层表面，控制干涂量2.05-2.35g/m2,形成待模压层；再使用模压设备、全息镍版，设定模压温度210℃，设定模压压力15kg/m 2，制得全息防伪层；
3)使用涂布机、挤压辊，将磁性涂料涂覆至全息防伪层表面，控制干涂量6-7g/m2，制得信息承载层；
4)使用真空镀膜设备，将金属材料均匀蒸镀在信息承载层表面，控制镀层厚度在700-850埃之间，制得金属镀层；
5)使用涂布机，将热熔胶涂料涂覆至金属镀层表面，控制干涂量2.35-2.65g/m2，制得热熔胶层。
通过上述实施例所制备的一种具有信息储存及读取功能的防伪转移材料，在保持防伪转移材料全息防伪性能的基础上增加了信息储存及读取功能，可广泛应用于各类防伪标识、磁卡等领域，具有：防伪性好、转移效果优的特点。从测试情况来看：(1)实施例1采用相对较薄的的聚酯薄膜，厚度为18μm，且各涂层干涂量相对较小，在转移过程中涂层间具备较好的传热效应，平压平转移方式所需温度在125-160℃、所需压力3-5Mpa，适用于精细图文类高速转移，转移图文精美；制备过程要控制离型剂配方中马来酸改性硬质氯化聚烯烃树脂的添加量，否则会出现转移图文粘连、残缺共存现象；模压涂料配方中需要将热塑性EVA树脂、氯化聚丙烯树脂的添加量控制在合适的比例，确保涂层经镍版模压后具备较好的光栅成像性能且不影响转移切边性，同时配方中未添加络合染料，模压后可呈现素面全息镭射效果；(2)实施例2采用相对较厚的聚酯薄膜，厚度为30μm，且各涂层干涂量相对较大，平压平转移方式所需温度在150-180℃、所需压力4-6Mpa，适用于8cm2以上较大面积图文类转移，转移图文富有质感；在增加磁性涂料干涂量的情况下需要适当提高涂料树脂中热固性聚氨酯的添加比例，减少因涂层内部结合牢度、内聚力不足而引起的转移图文分层现象；随着各涂层厚度和转移图文面积的增加，不仅需要热熔胶具备较好的受热熔融性能，同时要与各类承印基材有着优异的结合强度，为此在热熔胶涂料配方中要适当提高具备优异附着力的聚酰胺树脂和氨基树脂的添加比例。另外需要指出的是，无论何种实施方式，信息承载层必须是一道不影响光学效果的透明涂层，否则将影响本发明的全息防伪性能；同时，磁性涂料中采用热固性聚氨酯、松香改性酚醛树脂的搭配方式，主要综合了树脂与铁氧体/氧化锌纳米复合材料粉末的结合强度以及适应转移切边性而定的。
以上所述的仅为本发明的优选实施方式，应当指出，对于本领域的技术人员来说，本发明还可以有若干更改和变化。凡在本发明创造构思的范围内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (3)

1.一种具有信息储存及读取功能的防伪转移材料，其特征在于，结构上依次有聚酯薄膜、分离层、全息防伪层、信息承载层、金属镀层、热熔胶层；所述的分离层在一定剥离力的作用下能与聚酯薄膜有效分离；所述的全息防伪层可根据不同的全息镍版而制作出不同类型防伪图文，并呈现不同的全息镭射效果；所述的信息承载层是一道不影响光学效果的透明涂层，是实现信息储存及读取功能的主体涂层；所述的金属镀层可使转移图文具备金属光泽度；所述的热熔胶层在一定温度下能迅速熔融，在压力的同时作用下能与承印基材有效黏合。
2.如权利要求1所述的一种具有信息储存及读取功能的防伪转移材料，其特征在于：
1)所述的聚酯薄膜为非电晕双向拉伸BOPET膜，厚度为18-30μm；
2)所述的分离层是将离型剂通过涂布机涂覆得到的；所述的离型剂按质量份数计包括：达玛树脂2-8份、马来酸改性硬质氯化聚烯烃树脂1-5份、甲基纤维素1-3份、稀释剂25-60份；
其中，所述的达玛树脂的软化点为90℃；所述的马来酸改性硬质氯化聚烯烃树脂的分子量为3-5万、Tg为45℃；所述的甲基纤维素的聚合度为300-350；所述的稀释剂以乙酯、丁酮、异丙醇、烷基酚聚氧乙烯醚按质量比30：20：6：1混合而成；
3)所述的全息防伪层是将模压涂料通过涂布机涂覆，再经全息模压得到的；所述的模压涂料按质量份数计包括：热塑性EVA树脂2-10份、甲苯二异氰酸酯1-6份、氯化聚丙烯树脂1-5份、硝酸纤维素0-3份、络合染料0-5份、稀释剂20-60份；
其中，所述的热塑性EVA树脂的软化点为95-100℃、拉伸强度为20Mpa；所述的甲苯二异氰酸酯的软化点为100℃；所述的氯化聚丙烯树脂的氯含量在26％；所述的络合染料的耐热性为210℃下≥10秒；所述的稀释剂以丁酮、正丙酯、异丁酯、戊酮按质量比10：5：2：2混合而成；
4)所述的信息承载层是将磁性涂料通过涂布机和挤压辊涂覆得到的；所述的磁性涂料按质量份数计包括：铁氧体/氧化锌纳米复合材料粉末2-10份、热固性聚氨酯2-6份、松香改性酚醛树脂1-5份、二乙烯基三胺0-2份、乙酸乙酯5-15份、丙酮1-5份；
5)所述的金属镀层是将金属材料通过真空镀膜设备蒸镀得到的；
其中，所述的金属材料为纯度99.9％以上的铝、铜、镍、锌中的任何一种；
6)所述的热熔胶层是将热熔胶涂料通过涂布机涂覆得到的；所述的热熔胶涂料按质量份数计包括：聚酯树脂2-8份、聚酰胺树脂1-5份、氨基树脂1-5份、硝酸纤维素0-2份、二氧化硅粉0-3份、乙酸乙酯10-50份、正丁酯5-15份。
3.如权利要求1所述的一种具有信息储存及读取功能的防伪转移材料的制备方法，其特征在于，包括以下步骤：
1)使用涂布机，将离型剂涂覆至聚酯薄膜表面，控制干涂量1.35-1.85g/m2，制得分离层；
2)使用涂布机，将模压涂料涂覆至分离层表面，控制干涂量1.6-2.35g/m2，形成待模压层；再使用模压设备、全息镍版，设定模压温度180-210℃，设定模压压力10-15kg/m 2，制得全息防伪层；
3)使用涂布机、挤压辊，将磁性涂料涂覆至全息防伪层表面，控制干涂量4-8g/m2，制得信息承载层；
4)使用真空镀膜设备，将纯度99.9％以上的铝、铜、镍、锌中的任何一种金属材料均匀蒸镀在信息承载层表面，控制镀层厚度在700-850埃之间，制得金属镀层；
5)使用涂布机，将热熔胶涂料涂覆至金属镀层表面，控制干涂量1.85-2.85g/m2，制得热熔胶层。
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