CN116200952B - 一种蓄热防粘银涂层面料及其制备工艺 - Google Patents

一种蓄热防粘银涂层面料及其制备工艺 Download PDF

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CN116200952B
CN116200952B CN202310352749.1A CN202310352749A CN116200952B CN 116200952 B CN116200952 B CN 116200952B CN 202310352749 A CN202310352749 A CN 202310352749A CN 116200952 B CN116200952 B CN 116200952B
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林志阳
林俊发
谢应彩
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Yonggu Textile Technology Co ltd
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Abstract

本发明涉及功能面料技术领域，具体公开一种蓄热防粘银涂层面料及其制备工艺，包括：基布；PU粘着层，粘结在基布表面；PU基银涂层，固化成型在PU粘着层表面，该PU基银涂层的表面规则分布有反射凹部；以及柔软涂层，固化成型在相邻两反射凹部之间的PU基银涂层表面上且相对PU基银涂层表面凸出设置。本发明利用PU粘着层将PU基银涂层牢固结合在基布上，利用PU基银涂层反射由人体辐射出来的红外热量，达到蓄热升温效果；通过凸出设置的柔软涂层和凹陷设置的反射凹部，使得在穿着状态下面料的贴肤面主要依靠柔软涂层与肌肤接触，通过柔软涂层的柔软触感提升肌肤触感舒适度，同时起到隔离作用，有效的降低了PU膜与皮肤的黏附感。

Description

一种蓄热防粘银涂层面料及其制备工艺
技术领域
本发明涉及功能面料技术领域，具体涉及一种蓄热防粘银涂层面料及其制备工艺。
背景技术
纺织品涂层又称涂层胶，是一种均匀涂布于织物表面的高分子类化合物。它通过粘合作用在织物表面形成一层或多层薄膜，不仅能改善织物的外观和风格，而且能增加织物的功能，使织物具有防水、遮光反射等特殊功能。
现有技术中的银涂层面料采用把PU银色涂料直接涂布于基布之上，或者把银色涂料转移贴合于基布之上，利用银浆对红外线高反射率达到热量循环保温目的。但是，由于银涂层为平面结构，与皮肤接触的部分黏腻造成不舒服。为改善粘连不适感，出现了将银涂层贴肤面设计成蜂窝状或迷宫状，利用蜂窝状或迷宫状的凸起与皮肤接触而不是整个银涂层平面与皮肤接触，但这种结构却带来了对皮肤的摩擦刺激与磨损问题。因此，有必要提出一种新的蓄热防粘银涂层面料。
发明内容
本发明的发明目的是提供一种蓄热防粘银涂层面料及其制备工艺，具备蓄热反射功能的同时提高肌肤触感舒适度。
为实现上述发明目的，本发明采用的技术方案是：
一种蓄热防粘银涂层面料，包括：
基布；
PU粘着层，粘结在基布表面；
PU基银涂层，固化成型在PU粘着层表面，该PU基银涂层的表面规则分布有反射凹部；以及
柔软涂层，固化成型在相邻两反射凹部之间的PU基银涂层表面上且相对PU基银涂层表面凸出设置。
优选地，所述基布为梭织面料或针织面料。
优选地，所述PU粘着层的厚度为0.01mm～0.02mm。
优选地，所述PU基银涂层的厚度为0.02mm～0.03mm。
优选地，所述柔软涂层的凸起高度为0.002mm～0.005mm。
优选地，所述反射凹部为半球曲面形状，半径为0.6mm～2mm。
优选地，所述反射凹部呈矩阵分布。
本发明还提供一种蓄热防粘银涂层面料的制备工艺，具体包括如下步骤：
S1、准备离型膜：离型膜的涂布面上呈矩阵式规则分布设置有凸半球并在凸半球之间沿矩阵横纵方向开设有涂布凹槽；
S2、准备柔软涂层浆料、PU基银涂料和聚氨酯底胶；
S3、先在离型膜的涂布凹槽上涂布柔软涂层浆料，使柔软涂层浆料填充在涂布凹槽内并与涂布面平齐；然后进入20℃～40℃凝固浴中进行扩散、凝固、水洗、烘干，从而在离型膜上制得具有表面孔隙丰富的柔软涂层；
S4、涂布PU基银涂料在涂布面上，在烘箱前设置超声波振荡箱，对PU基银涂料进行超声波振荡10min-20min，使得PU基银涂料进入柔软涂层表面孔隙并与柔软涂层相结合；然后烘干冷却制得PU基银涂层；
S5、涂布PU粘着浆料在PU基银涂层表面，烘干冷却制得PU粘着层，此时在离型膜上形成柔软涂层、PU基银涂层和PU粘着层；
S6、与基布贴合、烘干冷却，从而使PU粘着层、PU基银涂层和柔软涂层转印结合在基布表面，剥离离型膜。
其中：所述柔软涂层浆料包括端羟基聚氨酯树脂70-80份、有机硅类柔软剂30-40份、流平剂0.2-0.5份、强极性溶剂50-70份。
与现有技术相比，本发明具有以下有益效果：
本发明面料在基布表面由内及外依次设置PU粘着层、PU基银涂层和柔软涂层，利用PU粘着层将PU基银涂层牢固结合在基布上，利用PU基银涂层内部的纳米银颗粒反射由人体辐射出来的红外热量，达到蓄热升温效果。同时，本申请改进了PU基银涂层表面结构为多个反射凹部，一方面在穿用状态下减少与肌肤接触，有效减轻粘附力，不易磨损，也不会对肌肤产生刺激不适；另一方面凹面反射面积总和显著大于传统平面银涂层结构的反射面积，能够更充分的把从人体表面热辐射出来的热量反射回去，尤其是凹面镜能把人体辐射出来的红外热量反射汇聚，蓄热升温效果更佳。再者，本申请还创新性地在PU基银涂层表面成型凸出设置的柔软涂层，结合凹陷设置的反射凹部，使得在穿着状态下面料的贴肤面主要依靠柔软涂层与肌肤接触，通过柔软涂层的柔软触感提升肌肤触感舒适度，同时起到隔离作用以及拒水效果，有效的降低了PU膜与皮肤的黏附感。
本发明的另一创新在于柔软涂层的涂层工艺，传统的转移涂层是在离型纸上依次涂布固化成型出多层涂层而后再剥离离型纸，而本发明创新性地在转移涂层技术上结合了湿法涂层工艺，先采用湿法涂层工艺在离型膜的涂布凹槽内形成表面具有丰富孔隙的柔软涂层，一方面柔软触感又透气舒适，另一方面能够在超声波振荡工艺配合下使PU基银涂层渗透与结合在柔软涂层的孔隙内，保证在剥离离型膜时微细结构的柔软涂层也能够很好保持完整且附着在PU基银涂层上。
附图说明
图1为本发明银涂层面料结构示意图。
图2为本发明离型膜涂布面结构示意图。
具体实施方式
为了让本发明的上述特征和优点更明显易懂，下面特举实施例，并配合附图，作详细说明如下。
如图1所示，本实施例提供一种蓄热防粘银涂层面料，包括：基布10、PU粘着层20、PU基银涂层30以及柔软涂层40。
在本实施例中，所述基布10可采用市面常见的梭织面料或针织面料，具体根据面料应用在不同功能用途或场景应用的服装种类进行选择，例如可以采用经纱为20D锦纶、纬纱为20D涤纶的锦涤交织布。要注意的是，基布10的选材对于本申请的提升触感发明目的的影响小，在实际生产中可以从市面采购回来基布后进行涂层后整理。
在本实施例中，所述PU粘着层20采用聚氨酯底胶粘结在基布10表面，所述PU粘着层20的厚度为0.01mm～0.02mm；PU基银涂层30采用PU基银涂料固化成型在PU粘着层20表面，PU基银涂层30的表面规则分布有反射凹部31，所述PU基银涂层30的厚度为0.02mm～0.03mm；所述柔软涂层40采用有机硅类柔软层，具有柔软和拒水性能，所述柔软涂层40固化成型在相邻两反射凹部31之间的PU基银涂层30表面上且相对PU基银涂层30表面凸出设置，所述柔软涂层40的凸起高度为0.002mm～0.005mm。
在本实施例中，所述反射凹部31为半球曲面形状，呈矩阵分布，半径为0.6mm～2mm。进一步地，所述柔软涂层40的截面形状也为凸半球结构，半径为0.2mm-0.5mm，曲面平滑，触感良好。
下面具体提出该面料制备工艺的两个实施例。
实施例1
该面料制备工艺具体包括如下步骤：
S1、准备离型膜：离型膜50的涂布面上呈矩阵式规则分布设置有凸半球51并在凸半球51之间沿矩阵横纵方向开设有涂布凹槽52，如图2所示。
S2、准备柔软涂层浆料、PU基银涂料和聚氨酯底胶；其中：PU基银涂料的原料组成为：PU聚氨酯树脂100份、DMF50份、TOL30份、流平剂0.2份、纳米级别银浆10份，开稀后的作业粘度3000CPS；聚氨酯底胶的原料组成为：PU聚氨酯粘剂100份、DMF40份、TOL20份、交联剂6份、交联催化剂1份，开稀后的作业粘度3000CPS；所述柔软涂层浆料包括端羟基聚氨酯树脂80份、有机硅类柔软剂40份、流平剂0.3份、强极性溶剂DMF 60份，所述有机硅类柔软剂具体采用羧基聚硅氧烷柔软剂，开稀后的作业粘度3500CPS。
S3、先在离型膜50的涂布凹槽52上涂布柔软涂层浆料，使柔软涂层浆料填充在涂布凹槽52内并与涂布面平齐；然后进入30℃凝固浴中进行扩散、凝固、水洗、烘干，从而在离型膜50上制得具有表面孔隙丰富的柔软涂层40。
S4、涂布PU基银涂料在涂布面上，在烘箱前设置超声波振荡箱，对PU基银涂料进行超声波振荡20min，使得PU基银涂料进入柔软涂层40表面孔隙并与柔软涂层40相结合；然后烘干冷却制得PU基银涂层30，各区烘干温度为80℃、100℃、120℃、140℃。
S5、涂布PU粘着浆料在PU基银涂层30表面，烘干冷却制得PU粘着层20，各区烘干温度为60℃-120℃，此时在离型膜50上形成柔软涂层40、PU基银涂层30和PU粘着层20。
S6、与基布10贴合、烘干冷却，贴合压力5kg/cm2，各区烘干温度为100℃、120℃、140℃、150℃，从而使PU粘着层20、PU基银涂层30和柔软涂层40转印结合在基布10表面，剥离离型膜50。
实施例2
该面料制备工艺具体包括如下步骤：
S1、准备离型膜：离型膜50的涂布面上呈矩阵式规则分布设置有凸半球51并在凸半球51之间沿矩阵横纵方向开设有涂布凹槽52，如图2所示。
S2、准备柔软涂层浆料、PU基银涂料和聚氨酯底胶；其中：PU基银涂料的原料组成为：PU聚氨酯树脂100份、DMF60份、TOL30份、流平剂0.5份、纳米级别银浆12份，开稀后的作业粘度3500CPS；聚氨酯底胶的原料组成为：PU聚氨酯粘剂100份、DMF40份、TOL30份、交联剂5份、交联催化剂0.5份，开稀后的作业粘度4000CPS；所述柔软涂层浆料包括端羟基聚氨酯树脂70份、有机硅类柔软剂35份、流平剂0.4份、强极性溶剂DMF 50份，所述有机硅类柔软剂具体采用羧基聚硅氧烷柔软剂，开稀后的作业粘度4000CPS。
S3、先在离型膜50的涂布凹槽52上涂布柔软涂层浆料，使柔软涂层浆料填充在涂布凹槽52内并与涂布面平齐；然后进入28℃凝固浴中进行扩散、凝固、水洗、烘干，从而在离型膜50上制得具有表面孔隙丰富的柔软涂层40。
S4、涂布PU基银涂料在涂布面上，在烘箱前设置超声波振荡箱，对PU基银涂料进行超声波振荡20min，使得PU基银涂料进入柔软涂层40表面孔隙并与柔软涂层40相结合；然后烘干冷却制得PU基银涂层30，各区烘干温度为80℃、100℃、120℃、140℃。
S5、涂布PU粘着浆料在PU基银涂层30表面，烘干冷却制得PU粘着层20，各区烘干温度为60℃-120℃，此时在离型膜50上形成柔软涂层40、PU基银涂层30和PU粘着层20。
S6、与基布10贴合、烘干冷却，贴合压力5kg/cm2，各区烘干温度为100℃、120℃、140℃、150℃，从而使PU粘着层20、PU基银涂层30和柔软涂层40转印结合在基布10表面，剥离离型膜50。
本实施例的PU基银涂层30表面分布有反射凹部31，一方面在穿用状态下减少与肌肤接触，有效减轻粘附力，不易磨损，也不会对肌肤产生刺激不适；另一方面凹面反射面积总和显著大于传统平面银涂层结构的反射面积，能够更充分的把从人体表面热辐射出来的热量反射回去，尤其是凹面镜能把人体辐射出来的红外热量反射汇聚，蓄热升温效果更佳。根据实验发现，平面结构的远红外辐射升温5℃，而采用本实施例方案可以达到7℃以上，提升40%以上。
以上显示和描述了本发明创造的基本原理和主要特征及本发明的优点，本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明创造精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内，本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (8)

1.一种蓄热防粘银涂层面料，其特征在于，包括：
基布；
PU粘着层，粘结在基布表面；
PU基银涂层，固化成型在PU粘着层表面，该PU基银涂层的表面规则分布有反射凹部；以及
柔软涂层，固化成型在相邻两反射凹部之间的PU基银涂层表面上且相对PU基银涂层表面凸出设置；
该蓄热防粘银涂层面料的制备工艺具体包括如下步骤：
S1、准备离型膜：离型膜的涂布面上呈矩阵式规则分布设置有凸半球并在凸半球之间沿矩阵横纵方向开设有涂布凹槽；
S2、准备柔软涂层浆料、PU基银涂料和聚氨酯底胶；
S3、先在离型膜的涂布凹槽上涂布柔软涂层浆料，使柔软涂层浆料填充在涂布凹槽内并与涂布面平齐；然后进入20℃～40℃凝固浴中进行扩散、凝固、水洗、烘干，从而在离型膜上制得具有表面孔隙丰富的柔软涂层；
S4、涂布PU基银涂料在涂布面上，在烘箱前设置超声波振荡箱，对PU基银涂料进行超声波振荡10min-20min，使得PU基银涂料进入柔软涂层表面孔隙并与柔软涂层相结合；然后烘干冷却制得PU基银涂层；
S5、涂布PU粘着浆料在PU基银涂层表面，烘干冷却制得PU粘着层，此时在离型膜上形成柔软涂层、PU基银涂层和PU粘着层；
S6、与基布贴合、烘干冷却，从而使PU粘着层、PU基银涂层和柔软涂层转印结合在基布表面，剥离离型膜。
2.根据权利要求1所述的蓄热防粘银涂层面料，其特征在于：所述基布为梭织面料或针织面料。
3.根据权利要求1所述的蓄热防粘银涂层面料，其特征在于：所述PU粘着层的厚度为0.01mm～0.02mm。
4.根据权利要求1所述的蓄热防粘银涂层面料，其特征在于：所述PU基银涂层的厚度为0.02mm～0.03mm。
5.根据权利要求1所述的蓄热防粘银涂层面料，其特征在于：所述柔软涂层的凸起高度为0.002mm～0.005mm。
6.根据权利要求1所述的蓄热防粘银涂层面料，其特征在于：所述反射凹部为半球曲面形状，半径为0.6mm～2mm。
7.根据权利要求1所述的蓄热防粘银涂层面料，其特征在于：所述反射凹部呈矩阵分布。
8.根据权利要求1所述的蓄热防粘银涂层面料，其特征在于：所述柔软涂层浆料包括端羟基聚氨酯树脂70-80份、有机硅类柔软剂30-40份、流平剂0.2-0.5份、强极性溶剂50-70份。
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