CN106541723A - 一种水转印镭射膜及其制备方法 - Google Patents

一种水转印镭射膜及其制备方法 Download PDF

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CN106541723A
CN106541723A CN201610948664.XA CN201610948664A CN106541723A CN 106541723 A CN106541723 A CN 106541723A CN 201610948664 A CN201610948664 A CN 201610948664A CN 106541723 A CN106541723 A CN 106541723A
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何宜祥
王程
许花
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Suzhou Wonderful New Material Co Ltd
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Abstract

本发明公开了一种用于布料烫印的夜光热转移膜,其包括PET基膜,所述PET基膜上依次涂覆有离型层、着色层、模压层、镀铝层以及背胶层,转移到PVA膜后外附有PE膜保护膜层;其中,离型层为有机硅树脂层,具有剥离性;着色层主要是赋予产品颜色;模压层主要是产品形成光栅镭射的效果;镀铝层可以赋予产品金属光泽,提高产品的美观性和档次;背胶层主要是与PVA保护膜具有很好地粘结性;PVA层是一种水溶性极强的薄膜,使转印层在水中很好地转移到曲形物品上,经一定的高温固化后,能牢固的与被烫物结合在一起,解决旧工艺粘接不牢的难题,提高了转移膜的应用范围,同时也解决了曲形面不能转印的难题。

Description

一种水转印镭射膜及其制备方法
技术领域
本发明涉及一种水转印镭射膜及其制备方法。
背景技术
热转移膜作为一种新型的印刷装饰材料,具有环保、高效、节能等特点,应用范围广泛。在转移的发展史上,曲面物体一直被排除在外,如在鞋底,鞋帮,不规则建材,汽车轮毂等领域,一直是被烫印的空白,且具有很大的市场发展空间。
发明内容
本发明目的是:为了解决上述现有技术的不足,提供一种具有水溶性较好的转印产品,能强有力的包覆在曲形面上,解决了曲形面无法转印的难题。
本发明的一种技术方案是:一种水转印镭射膜,其包括PET基膜,所述PET基膜上依次涂覆有离型层、着色层、模压层、镀铝层,背胶层以及PVA膜层。
其中,所述离型层为水性有机硅树脂固化层,其具有剥离性,可以使着色层、模压层、镀铝层等涂层从PET基膜上剥离,从而转移到承印物的表面。
其中,所述着色层由色层树脂、有机溶剂以及促进剂混合固化而成,其可以使热转移膜具有不同的颜色,通过调节染料的组分和树脂浓度可以改变热转移膜的颜色。
其中,所述模压层,赋予产品光栅图案形成镭射效果。
其中,镀铝层的厚度为35-40nm,该厚度的镀铝层赋予产品金属的光泽,提高产品的美观性和档次。
其中,所述背胶层为树脂粘结剂层,其可以使热转移膜与布料牢固粘合。
其中,所述PVA膜层为水性粘结层,其可以使转移膜在水中与曲面烫印物结合在一起。
本发明的另一种技术方案是:一种水转印镭射膜的制备方法,其制备步骤如下:
1)以双向拉伸的聚酯薄膜为基膜,以下简称PET基膜;
2)在PET薄膜表面涂覆形成离型层:将有机硅树脂均匀地溶解于有机溶剂中制备出离型层料液,并通过网纹辊涂布到PET薄膜的表面,然后经过四段式烘箱逐渐升温、降温进行反应和干燥,形成离型层;该离型层具有可剥离性,经烫印工艺可以使基膜与其它涂层分离,达到热转印的目的;
3)在离型层的表面涂覆形成着色层:将色层树脂、有机溶剂以及促进剂混合并搅拌均匀制备出着色层料液,然后用网纹辊将其涂布到微镀铝层的表面,经过四段式烘箱逐渐升温、降温进行反应和干燥,形成着色层;着色层的存在可以使热转移膜呈现出不同的颜色,提高美观性。
4)在着色层表面模压层:镭射涂层在150-250度的高温,通过两次镍板图形辊,压制而成光栅图案,形成镭射效果;
5)在着色层的表面形成镀铝层:在真空环境下将蒸发舟加热至1400-1600℃,将高纯度的铝丝连续性地送入蒸发舟使之发生连续升华成为铝蒸汽,随后均匀的附着于着色层的表面,形成镀铝层;
6)在镀铝层的表面形成背胶层:将树脂粘结剂通过网纹辊涂布到镀铝层的表面,经四段式烘箱逐渐升温、降温进行反应和干燥,形成背胶层;背胶层可以使热转移膜与布料牢固粘合。
9)在背胶层的表面设置PVA膜层:在120-150度高温下,背胶层通过转印机转印到PVA膜层上;
10)PVA膜层表面复合PE膜保护膜层;
11)以分切机将上述热转移膜分切收卷即可获得所述的功能性热转移膜。
优选的,步骤2)中,网纹辊为150-250目,四段式烘箱的低温区温度为85-105℃,高温区温度为110-130℃,车速为80-110m/min。采用逐渐升温然后降温的模式能够使料液中的有机溶剂挥发完全,是固化反应更加彻底,有利于形成稳定合适的离型,使热转移膜的剥离过程连续,无断膜现象。
优选的,步骤3)中,网纹辊为150-250目,四段式烘箱的低温区温度为130-150℃,高温区温度为160-180℃,车速为80-110m/min。该温度设定以及逐渐升温然后降温的模式能够使色层树脂充分发生固化反应,使热转移膜的颜色稳定。
优选的,步骤4)中,模压温度200℃,速度50m/min,模压两遍。
优选的,步骤5)中,镀铝层的厚度为35-40nm。该厚度的镀铝层赋予产品有金属的光泽。
优选的,步骤6)中,网纹辊为150-250目,四段式烘箱的低温区温度为60-80℃,高温区温度为110-140℃,车速为80-120m/min。
本发明的优点是:
1、本发明中所述离型层具有剥离性,可以使着色层、镀铝层等涂层从PET基膜上剥离,从而转移到承印物的表面。
2、本发明中所述着色层具有很强的耐碱性,在水中转移时不被水腐蚀。
3、本发明中所述的模压层,使涂层具有光栅镭射的效果,且在水中转移时不失镭射光,提高了产品的档次。
4、本发明中所述镀铝层的厚度为35-40nm,赋予产品很高的亮度,使镭射效果更佳明显。
5、本发明中所述着色层由色层树脂、有机溶剂以及促进剂混合固化而成,其可以使热转移膜具有不同的颜色。
6、本发明中所述背胶层为树脂粘结剂层,其可以使热转移膜与布料牢固粘合。
7、本发明中所述的PVA膜层,具有很强的水溶性,在水中能与曲面物形成很强的包覆和粘结力。
附图说明
下面结合附图及实施例对本发明作进一步描述:
图1为本发明的结构示意图。
其中:1PET基膜;2离型层;3着色层;4模压层;5镀铝层;6背胶层;7PVA膜层。
具体实施方式
一种水转印镭射膜的实施例:如图1所示,一种水转印镭射膜,包括PET基膜1,所述PET基膜1上依次涂覆有离型层2,着色层3,模压层4,镀铝层5,背胶层6,PVA膜层7。
本实施例中,所述离型层2为水性有机硅树脂固化层,其具有剥离性,可以使着色层、模压层、镀铝层等涂层从PET基膜上剥离,从而转移到承印物的表面。
本实施例中,所述着色层3由色层树脂、有机溶剂以及促进剂混合固化而成,其可以使热转移膜具有不同的颜色。
本实施例中,所述背胶层6为树脂粘结剂层,其可以使热转移膜与布料牢固粘合。
一种水转印镭射膜的制备方法的实施例一:一种水转印镭射膜的制备方法,其制备步骤如下:
1)以双向拉伸的聚酯薄膜为基膜,以下简称PET基膜;
2)在PET薄膜表面涂覆形成离型层:将有机硅树脂均匀地溶解于有机溶剂中制备出离型层料液,并通过150目的网纹辊涂布到PET薄膜的表面,然后经过四段式烘箱逐渐升温、降温进行反应和干燥,形成离型层。其中,烘箱的各段温度为90℃-110℃-110℃-90℃,车速为80m/min。该离型层具有可剥离性,经烫印工艺可以使基膜与其它涂层分离,达到热转印的目的;
3)在离型层的表面涂覆形成着色层:将色层树脂、有机溶剂以及促进剂混合并搅拌均匀制备出着色层料液,然后用200目的网纹辊将其涂布到微镀铝层的表面,经过四段式烘箱逐渐升温、降温进行反应和干燥,形成着色层;其中,烘箱的各段温度为140℃-160℃-150℃-130℃,车速为80m/min。着色层的存在可以使热转移膜呈现出不同的颜色,提高美观性。
4)在着色层面形成模压层,在200℃的高温下,车速50m/min经过两次模压,形成光栅镭射层,具有很强的幻彩效果,提高了产品的档次。
5)在着色层的表面形成镀铝层:在真空环境下将蒸发舟加热至1500℃,将高纯度的铝丝连续性地送入蒸发舟使之发生连续升华成为铝蒸汽,随后均匀的附着于着色层的表面,形成37nm的镀铝层;可以使转移膜具有金属光泽,提高产品档次亮度。
6)在铝层的表面形成背胶层:将树脂粘结剂通过200目的网纹辊涂布到镀铝层的表面,经四段式烘箱逐渐升温、降温进行反应和干燥,形成背胶层;其中烘箱的各段温度为70℃-120℃-120℃-80℃,车速为90m/min。背胶层可以使热转移膜与PVA膜牢固粘合。
7)在背胶层的表面设置PVA膜层:在120-150度高温下,背胶层通过转印机转印到PVA膜层上;
8)PVA膜层表面复合PE膜保护膜层;
9)以分切机将上述热转移膜分切收卷即可获得所述的水转印镭射膜。
一种水转印镭射膜的制备方法的实施例二:一种水转印镭射膜的制备方法,其制备步骤如下:
1)以双向拉伸的聚酯薄膜为基膜,以下简称PET基膜;
2)在PET薄膜表面涂覆形成离型层:将有机硅树脂均匀地溶解于有机溶剂中制备出离型层料液,并通过200目的网纹辊涂布到PET薄膜的表面,然后经过四段式烘箱逐渐升温、降温进行反应和干燥,形成离型层。其中,烘箱的各段温度为100℃-125℃-125℃-100℃,车速为90m/min。该离型层具有可剥离性,经烫印工艺可以使基膜与其它涂层分离,达到热转印的目的。
3)在离型层的表面涂覆形成着色层:将色层树脂、有机溶剂以及促进剂混合并搅拌均匀制备出着色层料液,然后用200目的网纹辊将其涂布到离型层的表面,经过四段式烘箱逐渐升温、降温进行反应和干燥,形成着色层;其中,烘箱的各段温度为150℃-175℃-160℃-140℃,车速为90m/min。着色层的存在可以使转移膜呈现出不同的颜色,提高美观性。
4)在着色层表面形成模压层,在210度的高温下,车速50m/min经过两次模压,形成光栅镭射层,具有很强的幻彩效果,提高了产品的档次。
5)在模压层的表面形成镀铝层:在真空环境下将蒸发舟加热至1600℃,将高纯度的铝丝连续性地送入蒸发舟使之发生连续升华成为铝蒸汽,随后均匀的附着于模压层的表面,形成39nm的镀铝层;该层可以使转移膜具有金属光泽,提高产品档次。
6)在镀铝层的表面形成背胶层:将树脂粘结剂通过200目的网纹辊涂布到镀铝层的表面,经四段式烘箱逐渐升温、降温进行反应和干燥,形成背胶层;其中烘箱的各段温度为75℃-130℃-130℃-80℃,车速为100m/min。背胶层可以使热转移膜与PVA膜层牢固粘合。
7)在背胶层的表面设置PVA膜层:在120-150度高温下,背胶层通过转印机转印到PVA膜层上;
8)PVA膜层表面复合PE膜保护膜层;
9)以分切机将上述热转移膜分切收卷即可获得所述的功能性热转移膜。
本发明中PVA膜层是一种水溶性极强的薄膜,使转印层在水中很好地转移到曲形物品上,经一定的高温固化后,能牢固的与被烫物结合在一起,解决旧工艺粘接不牢的的难题,提高了转移膜的应用范围,同时也解决了曲形面不能转印的难题。

Claims (10)

1.一种水转印镭射转移膜,其特征在于:包括PET基膜(1),所述PET基膜(1)上依次涂覆有离型层(2)、着色层(3)、模压层(4)、镀铝层(5)、背胶层(6)及PVA膜(7)。
2.根据权利要求1所述的一种水转印镭射膜,其特征在于:所述模压层(4)为光栅镭射层。
3.根据权利要求1或2所述的一种水转印镭射膜,其特征在于:所述着色层(3)由色层树脂、有机溶剂以及促进剂混合固化而成。
4.根据权利要求1或2所述的一种水转印镭射膜,其特征在于:所述离型层(2)为水性有机硅树脂固化层,所述背胶层(6)为树脂粘结剂层。
5.一种水转印镭射膜的制备方法,其制备步骤如下:
1)以双向拉伸的聚酯薄膜为基膜,以下简称PET基膜;
2)在PET薄膜表面涂覆形成离型层:将有机硅树脂均匀地溶解于有机溶剂中制备出离型层料液,并通过网纹辊涂布到PET薄膜的表面,然后经过四段式烘箱逐渐升温、降温进行反应和干燥,形成离型层;
3)在离型层的表面涂覆形成着色层:将色层树脂、有机溶剂以及促进剂混合并搅拌均匀制备出着色层料液,然后用网纹辊将其涂布到离型层的表面,经过四段式烘箱逐渐升温、降温进行反应和干燥,形成着色层;
4)在着色层的表面形成模压层:镭射涂层在150-250度的高温,通过两次镍板图形辊,压制而成光栅图案,形成镭射效果;
5)在模压层的表面形成镀铝层:在真空环境下将蒸发舟加热至1400-1600℃,将高纯度的铝丝连续性地送入蒸发舟使之发生连续升华成为铝蒸汽,随后均匀的附着于着色层的表面,形成镀铝层;
6)在镀铝层的表面形成背胶层:将树脂粘结剂通过网纹辊涂布到镀铝层的表面,经四段式烘箱逐渐升温、降温进行反应和干燥,形成背胶层;
7)在背胶层的表面设置PVA膜层:在120-150度高温下,背胶层通过转印机转印到PVA膜层上;
8)PVA膜层表面复合PE膜保护膜层;
9)以分切机将上述热转移膜分切收卷即可获得所述的水转印镭射膜。
6.根据权利要求5所述的一种水性镭射膜的制备方法,其特征在于:步骤2)中,网纹辊为150-250目,四段式烘箱的低温区温度为85-105℃,高温区温度为110-130℃,车速为80-110m/min。
7.根据权利要求5所述的一种水性镭射膜的制备方法,其特征在于:步骤3)中,网纹辊为150-250目,四段式烘箱的低温区温度为130-150℃,高温区温度为160-180℃,车速为80-110m/min。
8.根据权利要求5所述的一种水性镭射膜的制备方法,其特征在于:步骤4)中,两个花纹镍板在200℃的高温下,按50m/min模压两次。
9.根据权利要求5所述的一种水性镭射膜的制备方法,其特征在于:所述步骤5)中,镀铝层的厚度为35-40nm。
10.根据权利要求1所述的一种水性镭射膜的制备方法,其特征在于:所述步骤6)中,网纹辊为150-250目,四段式烘箱的低温区温度为60-80℃,高温区温度为110-140℃,车速为80-120m/min。
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