CN105584720A - 全息防伪垫片及其制备方法 - Google Patents
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Abstract
本发明属于防伪材料技术领域,具体涉及一种全息防伪垫片及其制备方法。全息防伪垫片是PE层、铝箔层、第一胶层、镀铝层、全息图文层、信息层、PET层、第二胶层与吸收层由内至外依次相连。本发明实现开盖即检的功能,杜绝了垫片的二次使用;使用环保材料复合制作防伪铝箔垫片,提高了环保功能。
Description
技术领域
本发明属于防伪材料技术领域,具体涉及一种全息防伪垫片及其制备方法。
背景技术
在食品或药品等领域,灌装或瓶装的封口,通常采用电磁感应铝箔垫片实现密封,以阻隔空气和水分,达到延长食品或药品保质期的目的,在假冒伪劣商品日益猖獗的今天,因食品、药品直接关系到人体健康,所以食品、药品的防伪成为重中之重。
发明内容
本发明的目的是提供一种全息防伪垫片,增强了防伪力度,杜绝了垫片的二次使用,提高了环保功能;本发明同时提供了全息防伪垫片的制备方法,科学合理、简单易行。
本发明所述的全息防伪垫片是PE层、铝箔层、第一胶层、镀铝层、全息图文层、信息层、PET层、第二胶层与吸收层由内至外依次相连。
所述的PE层厚度为15-30μm。
所述的第一胶层的材质为高聚聚氨酯,其固含量为100%;第一胶层的厚度为15-20微米。
所述的信息层由如下重量份数的原料制成:
FL-7201H180-90份
FL-7201H210-20份。
FL-7201H1和FL-7201H2是上海维凯化学品有限公司生产。
所述的第二胶层的材质是复合胶DH-3018,复合胶DH-3018是厦门鼎宏热熔胶有限公司生产。
所述的吸收层是原浆纸层,吸收层的厚度为1-2mm。
本发明全息信息内容是不可透视的,只有吸收层分离后才可以识读全息内容,并且每个垫片的全息信息内容的位置是相对固定的。
本发明所述的全息防伪垫片的制备方法,步骤如下:
(1)选择铝箔,利用流延机在铝箔上面涂布PE层;
(2)选择PET,利用复合机将信息层涂布在上面;
(3)制版时,垫片等距离排列,利用全息技术制作全息图文信息版;
(4)采用无版缝模压工艺在信息层上模压全息图文信息;
(5)使用真空镀铝机在全息图文层上面进行镀铝;
(6)使用无溶剂复合机将上述的铝箔和PET进行复合,复合面为铝箔面和镀铝层面;
(7)根据上述垫片之间的相对位置,制作对应的凹印版,并利用凹印机采用二次印刷工艺在步骤(6)复合好的半成品PE面定位印刷规矩线和单个垫片的模切线;
(8)利用干式复合机将步骤(7)中复合好半成品的PET面涂布复合胶DH-3018并与原浆纸进行复合;
(9)根据规矩线和模切线位置裁切成单个的防伪垫片。
步骤(1)中所述的铝箔的厚度为50-60μm。
步骤(1)中所述的涂布的车速为50-80米/分钟。
步骤(2)中所述的PET的厚度为12-30μm。
步骤(2)中所述的涂布中烘干温度为90-140-180-185-110℃,车速为50-60米/分钟,涂布干量为0.6-0.8g/m2。
步骤(5)中所述的镀铝的方阻值为1.0-1.5。
步骤(7)中所述的定位偏差≤0.2mm。
步骤(8)中所述的复合胶DH-3018在化料槽融化温度为80-90℃,复合中复合辊温度为40-50℃。
本发明与现有技术相比,具有如下有益效果:
1、解决了信息隐藏的实施办法,并同时解决定位模切垫片的方法。
2、实现开盖即检的功能,杜绝了垫片的二次使用。
3、使用环保材料复合制作防伪铝箔垫片,提高了环保功能。
4、预防了信息内容的外泄。
本发明的防伪铝箔封口垫片,不仅达到了密封的目的,同时也起到了打假护优的作用,严厉打击了食品、药品行业假冒伪劣产品的产生。
具体实施方式
以下结合实施例对本发明做进一步描述。
实施例1
客户订单500万枚
(1)选择厚度为50μm的铝箔,利用流延机在铝箔上面涂布PE层,PE层厚度为20μm,车速为80米/分钟。
(2)选择厚度为12μm的PET,利用复合机将配置好的信息层涂布在上面,烘干温度为90-140-180-185-110℃,车速60米/分钟,涂布干量为0.6g/m2;信息层组分和含量为FL-7201H1:80kg;FL-7201H2:20kg。
(3)制版时,垫片等距离排列,利用全息技术制作全息图文信息版。
(4)采用无版缝模压工艺在信息层上模压全息图文信息。
(5)使用真空镀铝机在全息图文层上面进行镀铝,镀铝层的方阻值为1.0。
(6)使用无溶剂复合机将上述的铝箔和PET进行复合,复合面为铝箔面和镀铝层面。
(7)根据上述垫片之间的相对位置,制作对应的凹印版,并利用凹印机采用二次印刷工艺在步骤(6)复合好的半成品PE面定位印刷规矩线和单个垫片的模切线,定位偏差≤0.2mm。
(8)利用干式复合机将步骤(7)中复合好半成品的PET面涂布复合胶DH-3018并与原浆纸进行复合。复合胶DH-3018在化料槽融化温度为80℃。复合辊温度为40℃。
(9)根据规矩线和模切线位置裁切成单个的防伪垫片。
实施例2
客户订单700万枚
(1)选择厚度为60μm的铝箔,利用流延机在铝箔上面涂布PE层,PE层厚度为25μm,车速为70米/分钟。
(2)选择厚度为16μm的PET,利用复合机将配置好的信息层涂布在上面,烘干温度为90-140-180-185-110℃,车速50-60米/分钟,涂布干量为0.7g/m2;信息层组分和含量为FL-7201H1:85kg;FL-7201H2:15kg。
(3)制版时,垫片等距离排列,利用全息技术制作全息图文信息版;
(4)采用无版缝模压工艺在信息层上模压全息图文信息。
(5)使用真空镀铝机在全息图文层上面进行镀铝。镀铝层的方阻值为1.2。
(6)使用无溶剂复合机将上述的铝箔和PET进行复合,复合面为铝箔面和镀铝层面。
(7)根据上述垫片之间的相对位置,制作对应的凹印版,并利用凹印机采用二次印刷工艺在步骤(6)复合好的半成品PE面定位印刷规矩线和单个垫片的模切线,定位偏差≤0.2mm。
(8)利用干式复合机将步骤(7)中复合好半成品的PET面涂布复合胶DH-3018并与原浆纸进行复合。复合胶DH-3018在化料槽融化温度为85℃。复合辊温度为45℃。
(9)根据规矩线和模切线位置裁切成单个的防伪垫片。
实施例3
客户订单1000万枚
(1)选择厚度为60μm的铝箔,利用流延机在铝箔上面涂布PE层,PE层厚度为30μm,车速为50米/分钟。
(2)选择厚度为30μm的PET,利用复合机将配置好的信息层涂布在上面,烘干温度为90-140-180-185-110℃,车速50米/分钟,涂布干量为0.8g/m2;信息层组分和含量为FL-7201H1:90kg;FL-7201H2:10kg。
(3)制版时,垫片等距离排列,利用全息技术制作全息图文信息版;
(4)采用无版缝模压工艺在信息层上模压全息图文信息。
(5)使用真空镀铝机在全息图文层上面进行镀铝。镀铝层的方阻值为1.5。
(6)使用无溶剂复合机将上述的铝箔和PET进行复合,复合面为铝箔面和镀铝层面。
(7)根据上述垫片之间的相对位置,制作对应的凹印版,并利用凹印机采用二次印刷工艺在步骤(6)复合好的半成品PE面定位印刷规矩线和单个垫片的模切线,定位偏差≤0.2mm。
(8)利用干式复合机将步骤(7)中复合好半成品的PET面涂布复合胶DH-3018并与原浆纸进行复合。复合胶DH-3018在化料槽融化温度为90℃。复合辊温度为50℃。
(9)根据规矩线和模切线位置裁切成单个的防伪垫片。
Claims (10)
1.一种全息防伪垫片,其特征在于PE层、铝箔层、第一胶层、镀铝层、全息图文层、信息层、PET层、第二胶层与吸收层由内至外依次相连。
2.根据权利要求1所述的全息防伪垫片,其特征在于所述的PE层厚度为15-30μm。
3.根据权利要求1所述的全息防伪垫片,其特征在于所述的第一胶层的材质为高聚聚氨酯,其固含量为100%;第一胶层的厚度为15-20微米。
4.根据权利要求1所述的全息防伪垫片,其特征在于所述的信息层由如下重量份数的原料制成:
FL-7201H180-90份
FL-7201H210-20份。
5.根据权利要求1所述的全息防伪垫片,其特征在于所述的第二胶层的材质是复合胶DH-3018。
6.根据权利要求1所述的全息防伪垫片,其特征在于所述的吸收层是原浆纸层,吸收层的厚度为1-2mm。
7.一种权利要求1-6任一所述的全息防伪垫片的制备方法,其特征在于步骤如下:
(1)选择铝箔,利用流延机在铝箔上面涂布PE层;
(2)选择PET,利用复合机将信息层涂布在上面;
(3)制版时,垫片等距离排列,利用全息技术制作全息图文信息版;
(4)采用无版缝模压工艺在信息层上模压全息图文信息;
(5)使用真空镀铝机在全息图文层上面进行镀铝;
(6)使用无溶剂复合机将上述的铝箔和PET进行复合,复合面为铝箔面和镀铝层面;
(7)根据上述垫片之间的相对位置,制作对应的凹印版,并利用凹印机采用二次印刷工艺在步骤(6)复合好的半成品PE面定位印刷规矩线和单个垫片的模切线;
(8)利用干式复合机将步骤(7)中复合好半成品的PET面涂布复合胶DH-3018并与原浆纸进行复合;
(9)根据规矩线和模切线位置裁切成单个的防伪垫片。
8.根据权利要求7所述的全息防伪垫片的制备方法,其特征在于步骤(1)中所述的铝箔的厚度为50-60μm。
9.根据权利要求7所述的全息防伪垫片的制备方法,其特征在于步骤(2)中所述的PET的厚度为12-30μm。
10.根据权利要求7所述的全息防伪垫片的制备方法,其特征在于步骤(2)中所述的涂布中烘干温度为90-140-180-185-110℃,车速为50-60米/分钟,涂布干量为0.6-0.8g/m2。
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