CN115125764A - 一种耐磨损的转印纸涂层 - Google Patents

一种耐磨损的转印纸涂层 Download PDF

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CN115125764A
CN115125764A CN202210639314.0A CN202210639314A CN115125764A CN 115125764 A CN115125764 A CN 115125764A CN 202210639314 A CN202210639314 A CN 202210639314A CN 115125764 A CN115125764 A CN 115125764A
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刘海丰
沙金兰
王樱
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Changzhou Taiyi New Material Co ltd
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Abstract

一种耐磨损的转印纸涂层,包括:壳聚糖、消泡剂、去离子水、磁粉、吸附高分子物质,还可包括二氧化硅、滑石粉,磁粉为钕铁硼,涂层配制过程中需要通过电磁设备引流穿梭转移,涂布生产过程中涂料涂覆、低温烘干、烘缸压平步骤中同样利用电磁设备引导磁粉迁移至涂层表面;优势如下:壳聚糖的共吸水能力可提高涂层的干燥速度,同时起到乳化剂、偶联剂的作用,磁粉通过吸附作用行程表面硬化层,提高涂层表面的耐磨度。

Description

一种耐磨损的转印纸涂层
技术领域
本发明涉及热转印技术领域,具体为一种耐磨损的转印纸涂层。
背景技术
热转印技术是一种新兴的印染技术,属于无水印染技术,在广告家纺等众多领域应用广泛,图画逼真度高且色彩度好。转印纸使用过程中,表面涂层难免会因摩擦产生磨损,影响后期上墨质量,最终影响转印的图案质量;再者,涂料涂覆到原纸表面后,会经过烘缸干燥转印纸并提升转印纸的平整性,烘缸转动干燥、压平转印纸过程中若涂层的干燥速度过慢、粘度高,会导致涂层粘黏在烘缸上,得到次品转印纸,次品转印纸在打印转印过程中于布面显示白点,导致转印失败;其次,涂层液制备过程中很难做到无泡制备,含有气泡的涂层在转印涂布后,气泡位置在转印中也会行成白点;除此之外,导致“转印白点”现象产生的原因还有很多,例如水性涂料中混有油滴、涂料变质发酵等等。
增强涂层表面的耐磨性是解决涂层磨损的主要手段之一;同时,从涂层技术本身来讲,提高涂料的干燥速度、减少涂料内的气泡含量是控制“转印白点”的关键所在,利于转印后的快速卷料,缩短交货周期。
本发明提出一种耐磨损的转印纸涂层,解决上述技术问题。
发明内容
一种转印纸涂层,包括:壳聚糖、消泡剂、去离子水、磁粉、吸附高分子物质。
优选的,所述一种转印纸涂层,所述吸附高分子物质是瓜尔胶、明胶、丙烯酸乳液、羟丙基纤维素、羧甲基纤维素钠、聚醋酸乳液、羧基丁苯乳液、羧基丁基苯乳胶、聚乙烯醇(pva)、丁苯乳胶、淀粉、海藻酸钠、聚丙烯酰胺、苯丙乳液、vae乳液、丙烯酸烷基酯、聚氨酯树脂、聚乙二醇、聚醋酸乙烯酯乳液、松香乳液、聚氧乙烯、聚乙烯磺酸钠、聚苯乙烯磺酸钠、聚丙烯酸甲酯、聚丙烯酸乙酯、聚丙烯酸丁酯、聚丙烯酸-2-乙基己基酯、纯丙乳液、醋丙乳液、叔醋乳液、叔丙乳液、VAE-松香共混乳液、松香苯丙复合乳液、AKD乳液中的一种或多种。
优选的,所述一种耐磨损的转印纸涂层,所述壳聚糖的质量分数为3%~10%,所述吸附高分子物质的质量分数为5%~10%,所述磁粉的质量分数为3%~10%,所述消泡剂的质量分数为1%~3%,剩余为去离子水。
优选的,所述一种转印纸涂层,还包括二氧化硅、滑石粉中的至少一种,所述二氧化硅、滑石粉的总质量分数为3%~6%。
优选的,所述一种转印纸涂层,所述磁粉为钕铁硼成分的磁粉,钕铁硼成分的铁粉高温消磁温度在200℃左右,可保证磁粉在低温烘干过程中保持磁性,高温转印过程中消磁,不会影响墨水转印工序。
一种转印纸涂层的制备方法,步骤如下:
将壳聚糖置于酸性溶液中溶解后,加入其它成分并充分搅拌;
配置涂层的容器中设置有电磁设备,通过电磁设备的通断电使磁粉在涂层溶液中移动避免因为大幅度搅拌混入气体的同时,还可刺破已存在的气泡达到消泡的目的。
一种转印纸涂层的涂布生产方法,步骤如下:
涂料涂覆、低温烘干、烘缸压平中的一个或多个步骤通过电磁设备使涂层中的磁粉向涂层表面迁移。
工作原理:
本发明涉及的转印纸涂层中,壳聚糖具有生物降解性、生物相容性、无毒性、抑菌等特点,壳聚糖中含有羟基、氨基等极性基团,吸湿性很强,甲壳素的吸湿率可达400%~500%,是纤维素的两倍多,成膜性能好,可作为成膜剂、偶联剂使用,高温稳定性能高,可保证迁移后磁粉位置的稳定性,高吸湿率可保证涂层中的含水量迅速降低,避免涂层烘干不透的现象,但壳聚糖含量要在合理范围内,不能过高,否则难以保证涂层含水量的稳定性,其次,根据去离子水含量的多少,可适当增加二氧化硅、滑石粉等成分进一步降低涂层中游离态的水含量,提高涂层中水的烘干效率。
在涂层生产过程中可利用电磁设备,甚至是交流电池设备的作用使涂层中的磁粉反复移动,消除涂层中已存在的气泡,特备对于体积较小气泡的消除有显著作用,再者,通过电磁设备将磁粉迁移至涂层表面并在壳聚糖的作用下稳定在涂层表面,便于表面的磁粉在设备运行过程中吸附铁质颗粒在涂层表面形成一定厚度的杂质层,大大提高涂层表面的耐磨性,保证涂层的完整性、平整性,有利于后期上模和图案转印。
具体实施方式
具体实施案例1:
一种转印纸涂层,包括:壳聚糖、消泡剂、去离子水、钕铁硼磁粉、吸附高分子物质。
其中,吸附高分子物质为羧甲基纤维素钠。
可选择的,还可选择性的加入滑石粉。
根据转印纸涂层的组分分为5个实验组,具体组分见表一所示;
上述5组实验组转印纸涂层的制备步骤如下:
将壳聚糖置于酸性溶液中溶解后,加入其它成分并充分搅拌;
配置涂层的容器中多处设置有电磁设备,通过电磁设备的通断电使磁粉在涂层溶液中移动避免因为大幅度搅拌混入气体的同时刺破已存在的气泡达到消泡的目的。
上述转印纸涂层的涂覆方法如下:
涂料涂覆、低温烘干、烘缸压平中均通过电磁设备使涂层中的磁粉向涂层表面迁移;
需要时可加入二氧化硅或滑石粉。
上述转印纸涂层的制备方法如下:
将壳聚糖置于酸性溶液中溶解后,加入其它成分并充分搅拌;
配置涂层的容器中设置有电磁设备,通过电磁设备的通断电使磁粉在涂层溶液中移动避免因为大幅度搅拌混入气体的同时,还可刺破已存在的气泡达到消泡的目的。
上述转印纸涂层的涂布生产方法如下:
涂料涂覆、低温烘干、烘缸压平步骤均通过电磁设备使涂层中的磁粉向涂层表面迁移;
针对上述五个实验组对应的涂层,在室温进行干燥时间测试(转印纸涂层面打印标准青色)、涂层表面耐磨性测试(转印纸涂层面打印标准青色后,两张涂布纸涂层面接触平放于桌面,上置标准200g砝码,匀速来回拖拉使纸面在砝码压力作用下摩擦,观察色面的磨损情况));转印白点情况。结果如表二所述,其中每个实验组对应不用涂覆步骤的重复试验组为5组。
表一实验组涂层中的各成分含量
Figure BDA0003683185930000031
表二各实验组涂层对应的干燥速度、表面强度、转印白点
Figure BDA0003683185930000032
实验结论如下:当涂层中同时存在壳聚糖、磁粉时可以提高涂层的干燥速度、使涂层的表面强度大大提高,加入适量滑石粉后,涂层的干燥速度会在小范围内进一步提升干;但是当壳聚糖含量过高时会降低涂层的干燥速度,主要是因为壳聚糖吸水的同时也起到保湿的作用,当含量过多时,保湿作用明显大于吸水干燥作用,不利于涂层的快速干燥;此外,磁粉的存在大大提高了表面强度(拉毛现象大大改善),实验结果可得知,适量磁粉的加入可提高表面强度的同时还可通过电磁设备的引流减少涂层中气泡的含量。
具体实施案例2:
在具体实施案例1的基础上,
可选择的,所述电磁设备为交流电磁设备,便于内部空间较小的容器安装使用,且可通过电流方向改变磁粉颗粒的移动方向,进一步优化消泡效果。
可选择的,可以在容器靠近中心的位置及靠近边缘的位置均设置电磁设备,且两处的电磁设备在同一时间段内对磁粉的作用方向相同,更有利于磁粉在涂层内的快速移动。
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对本发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。

Claims (7)

1.一种转印纸涂层,其特征在于:壳聚糖、消泡剂、去离子水、磁粉、吸附高分子物质。
2.如权利要求1所述一种转印纸涂层,其特征在于:所述吸附高分子物质是瓜尔胶、明胶、丙烯酸乳液、羟丙基纤维素、羧甲基纤维素钠、聚醋酸乳液、羧基丁苯乳液、羧基丁基苯乳胶、聚乙烯醇(pva)、丁苯乳胶、淀粉、海藻酸钠、聚丙烯酰胺、苯丙乳液、vae乳液、丙烯酸烷基酯、聚氨酯树脂、聚乙二醇、聚醋酸乙烯酯乳液、松香乳液、聚氧乙烯、聚乙烯磺酸钠、聚苯乙烯磺酸钠、聚丙烯酸甲酯、聚丙烯酸乙酯、聚丙烯酸丁酯、聚丙烯酸-2-乙基己基酯、纯丙乳液、醋丙乳液、叔醋乳液、叔丙乳液、VAE-松香共混乳液、松香苯丙复合乳液、AKD乳液中的一种或多种。
3.如权利要求1所述一种转印纸涂层,其特征在于:所述壳聚糖的质量分数为3%~10%,所述吸附高分子物质的质量分数为5%~10%,所述磁粉的质量分数为3%~10%,所述消泡剂的质量分数为1%~3%,剩余为去离子水。
4.如权利要求1所述一种转印纸涂层,其特征在于:还包括二氧化硅、滑石粉中的至少一种,所述二氧化硅、滑石粉的总质量分数为3%~6%。
5.如权利要求1所述一种转印纸涂层,其特征在于:所述磁粉为钕铁硼成分的磁粉。
6.如权利要求1~5任意所述转印纸涂层的制备方法,步骤如下:
将壳聚糖置于酸性溶液中溶解后,加入其它成分并充分搅拌;
配置涂层的容器中设置有电磁设备,通过电磁设备的通断使磁粉在涂层溶液中移动。
7.如权利要求1~5任意所述转印纸涂层的涂布生产方法,其特征在于:涂料涂覆、低温烘干、烘缸压平中的一个或多个步骤通过电磁设备使涂层中的磁粉向涂层表面迁移。
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CN115770717A (zh) * 2022-11-30 2023-03-10 深圳市松博宇科技股份有限公司 一种高纵深感的磁化木纹涂装加工方法

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JPS6490070A (en) * 1987-09-30 1989-04-05 Hitachi Ltd Method for applying magnetic paint
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