CN114457617A - 一种无墨热敏打印纸及其制备方法 - Google Patents
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Abstract
本发明涉及一种无墨热敏打印纸及其制备方法,包括纸基层、预涂层和无墨涂层;所述预涂层包括氯醋树脂、附着力促进剂和溶剂,所述无墨涂层包括组分一和组分二,所述组分一包括以下质量百分比的材料:聚乙烯醇2‑10%、黑色染料5‑15%、分散剂0‑10%、水70‑80%;所述组分二包括以下质量百分比的材料:聚乙烯醇2‑10%、显色剂5‑15%、分散剂0‑10%、水70‑80%;所述组分一和组分二的比例为1:1~1:2。本发明打印后表面光滑、色彩鲜活、层次分明,分辨率高;表面有保护层,防水、防油、防腐蚀、耐刮性好,使用寿命长;添加了抗紫外老化剂以及紫外吸收剂,能够有效抑制其褪色等情况。
Description
技术领域
本发明涉及打印耗材技术领域,具体是一种无墨热敏打印纸及其制备方法。
背景技术
目前市场上使用的无墨打印纸的结构一般由四层组成,分别为:纸基层、无墨涂层和保护层,无墨涂层大多使用荧烷类化合物,通过打印机的加热头对无墨层进行升温,使其显示出黑色的文字图案。制作工艺是在普通纸基上涂敷微粒粉末,成分是无色染料苯酚类或其他酸性物质,在受热条件下,薄膜融化,粉末混合起显色反应。
但由于工艺简单、使用要求不高,打印后的纸张显色的字迹不稳定、时间稍长会消褪,不适合长期保存,目前主要应用于超市购物票、物流快递单、银行POS票据等,打印迅速且不需要长期保存。
发明内容
本发明的目的是简化热敏打印纸的制备过程,简化了制备工艺,并且添加了抗紫外老化剂以及紫外吸收剂能够有效抑制其褪色等情况,而且表面增加一层保护层,防水、防油、防污染,耐刮擦,能够长期保存。
本发明提供的具体解决方案如下:
一种无墨热敏打印纸,包括纸基层、预涂层和无墨涂层;所述预涂层包括氯醋树脂、附着力促进剂和溶剂,所述氯醋树脂所占质量百分数为5-30%;所述附着力促进剂选自钛酸四乙酯和钛酸正丁酯中的一种或多种,所占质量百分数为0-2%;所述溶剂选自丁酮、甲苯和乙酸乙酯中的一种或多种,所占质量百分数为68-95%;
所述无墨涂层包括组分一和组分二,所述组分一包括以下质量百分比的材料:聚乙烯醇2-10%、黑色染料5-15%、分散剂0-10%、水70-80%;所述组分二包括以下质量百分比的材料:聚乙烯醇2-10%、显色剂5-15%、分散剂0-10%、水70-80%;所述组分一和组分二的比例为1:1,~1:2。
优选地,所述无墨涂层还包括抗紫外助剂,所占质量百分比为0.5-1%。
优选地,还包括保护层,所述保护层,所述保护层包括氟碳树脂、附着力促进剂、溶剂和助剂,所述氟碳树脂选自聚四氟乙烯树脂、聚偏二氟乙烯树脂、聚三氟氯乙烯树脂、乙烯基醚树脂和聚氟乙烯树脂中的一种或多种,所占质量百分比为5~30%,所述附着力促进剂选自钛酸四乙酯和钛酸正丁酯中的一种或多种,所占质量百分比为0~2%,所述溶剂为水,所占质量百分比为60~85%,所述助剂选自苯二甲酸二丁酯、苯二甲酸二甲酯、聚乙烯蜡、二甲基硅酮油中的一种或多种,所占质量百分比为2~5%。
优选地,还包括中间间隔层,为树脂和填料的混合物。
一种无墨热敏打印纸的制备方法,包括如下步骤:
S1、配置预涂层溶液,用3#线棒将预涂层溶液涂布在纸基层上并放入烘箱中,烘箱温度范围为100~120℃,时间为2~5min;
S2、配置无墨涂层溶液,用3#线棒将无墨涂层溶液涂布在预涂层上,并放入烘箱中,烘箱温度范围为50~80℃,时间为2~5min;
S3、配置保护层溶液,用3#线棒将保护层溶液涂布在无墨涂层上,并放入烘箱中,烘箱温度范围为50~80℃,时间为2~5min。
优选地,所述预涂层、无墨涂层和保护层的各层厚度范围为1~20μm。
综上所述,本发明提出的技术方案具有以下有益效果:
(1)不需要配套墨水、墨粉或碳带,能够直接、快速打印,节省材料,同时也保护了环境;
(2)打印后表面光滑、色彩鲜活、层次分明,分辨率高;
(3)表面有保护层,防水、防油、防腐蚀、耐刮性好,使用寿命长;
(4)添加了抗紫外老化剂以及紫外吸收剂,能够有效抑制其褪色等情况。
具体实施方式
下面详细描述本发明的实施例,旨在用于解释本发明,而不能理解为对本发明的限制。
一种无墨热敏打印纸,包括纸基层、预涂层和无墨涂层;所述预涂层包括氯醋树脂、附着力促进剂和溶剂,所述氯醋树脂所占质量百分数为5-30%;所述附着力促进剂选自钛酸四乙酯和钛酸正丁酯中的一种或多种,所占质量百分数为0-2%;所述溶剂选自丁酮、甲苯和乙酸乙酯中的一种或多种,所占质量百分数为68-95%;
所述无墨涂层包括组分一和组分二,所述组分一包括以下质量百分比的材料:聚乙烯醇2-10%、黑色染料5-15%、分散剂0-10%、水70-80%;所述组分二包括以下质量百分比的材料:聚乙烯醇2-10%、显色剂5-15%、分散剂0-10%、水70-80%;所述组分一和组分二的比例为1:1,~1:2。
所述无墨涂层还包括抗紫外助剂,所占质量百分比为0.5-1%。
还包括保护层,所述保护层,所述保护层包括氟碳树脂、附着力促进剂、溶剂和助剂,所述氟碳树脂选自聚四氟乙烯树脂、聚偏二氟乙烯树脂、聚三氟氯乙烯树脂、乙烯基醚树脂和聚氟乙烯树脂中的一种或多种,所占质量百分比为5~30%,所述附着力促进剂选自钛酸四乙酯和钛酸正丁酯中的一种或多种,所占质量百分比为0~2%,所述溶剂为水,所占质量百分比为60~85%,所述助剂选自苯二甲酸二丁酯、苯二甲酸二甲酯、聚乙烯蜡、二甲基硅酮油中的一种或多种,所占质量百分比为2~5%。
还包括中间间隔层,为树脂和填料的混合物。
一种无墨热敏打印纸的制备方法,包括如下步骤:
S1、配置预涂层溶液,用3#线棒将预涂层溶液涂布在纸基层上并放入烘箱中,烘箱温度范围为100~120℃,时间为2~5min;
S2、配置无墨涂层溶液,用3#线棒将无墨涂层溶液涂布在预涂层上,并放入烘箱中,烘箱温度范围为50~80℃,时间为2~5min;
S3、配置保护层溶液,用3#线棒将保护层溶液涂布在无墨涂层上,并放入烘箱中,烘箱温度范围为50~80℃,时间为2~5min。
所述预涂层、无墨涂层和保护层的各层厚度范围为1~20μm。
具体实施例一
预涂层配方:氯醋树脂5%、附着力促进剂选用钛酸四乙酯2%、选用丁酮作为溶剂。
无墨涂层配方:
组分一:取聚乙烯醇(PVA)2%、黑色染料15%、分散剂选用BYK190、溶剂选用水,然后进行研磨,选用的黑色染料粒径范围为300-500nm。
组分二:取聚乙烯醇(PVA)5%、显色剂10%、分散剂选用BYK190、溶剂选用水,然后进行研磨,显色剂径范围为300-500nm。
研磨后的组分一和组分二按照1:1进行混合,添加0.5%的抗紫外助剂,然后制备成热敏涂层油墨。
所述保护层包括氟碳树脂、附着力促进剂、溶剂和助剂,所述氟碳树脂选自聚四氟乙烯树脂,所占质量百分比为7%,所述附着力促进剂选自钛酸四乙酯,所占质量百分比为2%,所述溶剂为水,所占质量百分比为85%,所述助剂选自苯二甲酸二丁酯,所占质量百分比为5%。
一种无墨热敏打印纸的制备方法,包括如下步骤:
S1、配置预涂层溶液,用3#线棒将预涂层溶液涂布在纸基层上并放入烘箱中,烘箱温度范围为100~120℃,时间为2~5min;
S2、配置无墨涂层溶液,用3#线棒将无墨涂层溶液涂布在预涂层上,并放入烘箱中,烘箱温度范围为50~80℃,时间为2~5min;
S3、配置保护层溶液,用3#线棒将保护层溶液涂布在无墨涂层上,并放入烘箱中,烘箱温度范围为50~80℃,时间为2~5min。
以上所述的实施例还包括中间间隔层,为树脂和填料的混合物,主要起分隔温度区间的作用,避免出现不同温度响应的显色层之间互相影响。
所述预涂层、无墨涂层和保护层的各层涂布的厚度范围为1~20μm。
以上所述的分散剂还可以选择BYK190、BYK2012或BYK3455中的一种或多种。
综上所述,本发明提出的技术方案具有以下有益效果:
(1)不需要配套墨水、墨粉或碳带,能够直接、快速打印,节省材料,同时也保护了环境;
(2)打印后表面光滑、色彩鲜活、层次分明,分辨率高;
(3)表面有保护层,防水、防油、防腐蚀、耐刮性好,使用寿命长;
(4)添加了抗紫外老化剂以及紫外吸收剂,能够有效抑制其褪色等情况。
尽管上面已经详细描述了本发明的实施例,本领域的普通技术人员可以理解:在不脱离本本发明的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由权利要求及其等同物限定。
Claims (6)
1.一种无墨热敏打印纸,其特征在于,包括纸基层、预涂层和无墨涂层;所述预涂层包括氯醋树脂、附着力促进剂和溶剂,所述氯醋树脂所占质量百分数为5-30%;所述附着力促进剂选自钛酸四乙酯和钛酸正丁酯中的一种或多种,所占质量百分数为0-2%;所述溶剂选自丁酮、甲苯和乙酸乙酯中的一种或多种,所占质量百分数为68-95%;
所述无墨涂层包括组分一和组分二,所述组分一包括以下质量百分比的材料:聚乙烯醇2-10%、黑色染料5-15%、分散剂0-10%、水70-80%;所述组分二包括以下质量百分比的材料:聚乙烯醇2-10%、显色剂5-15%、分散剂0-10%、水70-80%;所述组分一和组分二的比例为1:1,~1:2。
2.根据权利要求1所述的一种无墨热敏打印纸,其特征在于,所述无墨涂层还包括抗紫外助剂,所占质量百分比为0.5-1%。
3.根据权利要求1所述的一种无墨热敏打印纸,其特征在于,还包括保护层,所述保护层,所述保护层包括氟碳树脂、附着力促进剂、溶剂和助剂,所述氟碳树脂选自聚四氟乙烯树脂、聚偏二氟乙烯树脂、聚三氟氯乙烯树脂、乙烯基醚树脂和聚氟乙烯树脂中的一种或多种,所占质量百分比为5~30%,所述附着力促进剂选自钛酸四乙酯和钛酸正丁酯中的一种或多种,所占质量百分比为0~2%,所述溶剂为水,所占质量百分比为60~85%,所述助剂选自苯二甲酸二丁酯、苯二甲酸二甲酯、聚乙烯蜡、二甲基硅酮油中的一种或多种,所占质量百分比为2~5%。
4.根据权利要求1所述的一种无墨热敏打印纸,其特征在于,还包括中间间隔层,为树脂和填料的混合物。
5.一种无墨热敏打印纸的制备方法,其特征在于,包括如下步骤:
S1、配置预涂层溶液,用3#线棒将预涂层溶液涂布在纸基层上并放入烘箱中,烘箱温度范围为100~120℃,时间为2~5min;
S2、配置无墨涂层溶液,用3#线棒将无墨涂层溶液涂布在预涂层上,并放入烘箱中,烘箱温度范围为50~80℃,时间为2~5min(时间温度均可左右调整10-20%);
S3、配置保护层溶液,用3#线棒将保护层溶液涂布在无墨涂层上,并放入烘箱中,烘箱温度范围为50~80℃,时间为2~5min。
6.根据权利要求5所述的一种无墨热敏打印纸的制备方法,其特征在于,所述预涂层、无墨涂层和保护层的各层厚度范围为1~20μm。
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JP2006076112A (ja) * | 2004-09-09 | 2006-03-23 | Ricoh Co Ltd | 感熱記録材料 |
CN101247962A (zh) * | 2005-08-25 | 2008-08-20 | 王子制纸株式会社 | 热敏记录材料和制备该材料的方法 |
CN109423916A (zh) * | 2017-08-21 | 2019-03-05 | 金华盛纸业(苏州工业园区)有限公司 | 一种热敏纸及其制备方法 |
CN211199912U (zh) * | 2019-08-28 | 2020-08-07 | 曲阜市玉樵夫科技有限公司 | 一种热敏打印纸 |
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JP2006076112A (ja) * | 2004-09-09 | 2006-03-23 | Ricoh Co Ltd | 感熱記録材料 |
CN101247962A (zh) * | 2005-08-25 | 2008-08-20 | 王子制纸株式会社 | 热敏记录材料和制备该材料的方法 |
CN109423916A (zh) * | 2017-08-21 | 2019-03-05 | 金华盛纸业(苏州工业园区)有限公司 | 一种热敏纸及其制备方法 |
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