CN113389066A - 一种三位一体有机硅防污功能合成革的制造方法 - Google Patents
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Abstract
本发明所涉及的一种三位一体有机硅防污功能合成革的制造方法,包括如下步骤:表皮层的制备、中间层的制备、接着层的制备、贴合、熟化和分离;表皮层中的有机硅改性树脂复配浆料中含有有机硅改性树脂、有机硅防污助剂、有机硅架桥剂;中间层的粘结浆料含有有机硅粘结树脂、架桥剂、流平剂和色浆;接着层浆料中含有无溶剂树脂A、无溶剂树脂B、流平剂、色浆、催化剂。采用改性有机硅材料涂层、高固含量无溶剂聚氨酯结合涤纶底布材料的三位一体设计,并采用干法离型纸转移技术一次完成,工序简单,效率底高。并且表皮层采用的有机硅材料,表面亲肤触感佳,防污能力优异。在涂层材料中使用环保材料,成品DMF残留测试≤50ppm。
Description
技术领域
本发明涉及合成革制备技术领域,尤其是一种三位一体有机硅防污功能合成革的制造方法。
背景技术
现有市场上的合成革没有防污功能,并且现有市场上所使用的防污合成革,从原理上应用的是普通的聚氨酯树脂,进行助剂改性及通过交联提高聚氨酯树脂的致密性和防污性的效果,此种合成树脂的表面滑爽,并没有亲肤的手感,客户对于防污能力较为满意,但是对使用体验上希望能够达到亲肤触感。
市场上还流行一种有机硅革,该材料表面触感优异,但是整体手感偏僵硬,不够丰满,而且整体价格高,客户接受度不大。
如何通过配方、工艺手段实现有机硅材料与聚氨酯材料的有机结合,成为需要解决的问题。本发明通过有机硅树脂、聚氨酯树脂的优化选择、应用,实现两者的可结合;通过反应型聚氨酯树脂的应用实现产品整体手感的丰满度;
发明内容
本发明的目的是提供一种三位一体有机硅防污功能合成革的制造方法,采用改性有机硅材料涂层、高固含量无溶剂聚氨酯结合涤纶底布材料的三位一体设计,并采用干法离型纸转移技术一次完成,工序简单,效率底高。
为解决上述技术问题,本发明的目的是这样实现的:
1、一种三位一体有机硅防污功能合成革的制造方法,其特征在于,包括如下步骤:
步骤S1、表皮层的制备:将有机硅改性树脂复配浆料涂覆在离型纸上,涂覆刀位为0.03-0.15mm,烘干;烘干后的表皮层厚度为0.01-0.1mm;
所述有机硅改性树脂复配浆料中含有有机硅改性树脂、有机硅防污助剂、有机硅架桥剂;
所配制的有机硅改性树脂浆料的黏度在3000-10000cps/25℃,按照150-250g/m的涂布量涂覆至离型纸上,
所述有机硅改性树脂为有机硅成分占固成份30-70%的改性树脂;
步骤S2、中间层的制备:将有机硅粘结浆料涂覆在干燥后的表皮层上,涂覆刀位0.1-0.5mm,烘干;烘干后的中间层的成膜厚度为0.05-0.4mm;
所述有机硅粘结浆料中含有有机硅粘结树脂、架桥剂、流平剂和色浆;
所配制的有机硅粘结浆料的黏度在3000-20000cps/25℃,按照150-450g/m的涂布量涂覆至表皮层上;
所述有机硅粘结树脂为一种二液型、高温反应型聚醚型聚氨酯树脂,分子量在3000-10000;
所述色浆为100%固含无溶剂色料;
步骤S3、接着层的制备:将接着层浆料涂覆至烘干后的中间层表面上,涂覆刀位0.2-0.8mm;
所述接着层浆料中含有无溶剂树脂A、无溶剂树脂B、流平剂、色浆、催化剂;
所述无溶剂树脂A为聚醚多元醇混合物;所述无溶剂树脂B为聚醚异氰酸酯预聚体;
步骤S4、贴合:在80-120℃条件下预烘1-2min,再将底布贴合在接着层表面;
步骤S5、熟化:将贴合后的底布、接着层、中间层、表皮层和离型纸,在烘箱中进行熟化,设定温度在90-140℃,熟化时间为5-15min;
步骤S6、分离:将熟化后成品与离型纸分离并分别收卷。
在上述方案的基础上并作为上述方案的优选方案:步骤S1中,所述有机硅架桥剂为氮丙啶类架桥剂;所述有机硅防污助剂为反应型有机硅改性防污助剂。
在上述方案的基础上并作为上述方案的优选方案:所述催化剂为胺类、金属铋类催化剂混合物。
在上述方案的基础上并作为上述方案的优选方案:所述架桥剂为二元醇、二元胺类小分子混合物。
在上述方案的基础上并作为上述方案的优选方案:所述流平剂为100%固含有机硅改性表面活性剂。
在上述方案的基础上并作为上述方案的优选方案:所述有机硅改性树脂复配浆料中有机硅改性树脂的用量为100质量份、有机硅助剂的用量为10质量份、所述有机硅架桥剂的用量为1-10质量份。
在上述方案的基础上并作为上述方案的优选方案:所述有机硅粘结浆料中有机硅粘结树脂的用量为100质量份、所述架桥剂的用量为3-20质量份、所述流平剂的用量为0.1-2质量份、所述色浆的用量为1-10质量份。
在上述方案的基础上并作为上述方案的优选方案:所述接着层浆料中无溶剂树脂A的用量为100质量份、无溶剂树脂B的用量为3-20质量份、流平剂的用量是0.1-2质量份、色浆的用量为0-5质量份、催化剂的用量是0.1-1质量份。
本发明的有益效果是:本发明所涉及的一种三位一体有机硅防污功能合成革的制造方法,采用改性有机硅材料涂层、高固含量无溶剂聚氨酯结合涤纶底布材料的三位一体设计,并采用干法离型纸转移技术一次完成,工序简单,效率底高。并且表皮层采用的有机硅材料,表面亲肤触感佳,防污能力优异。在涂层材料中使用环保材料,成品DMF残留测试≤50ppm。
附图说明
图1是本发明所制备的合成革的结构示意图。
图中标记说明如下:1-表皮层;2-中间层;3-接着层;4-底布。
具体实施方式
下面结合附图和具体实施例对本发明进一步说明。
实施例
结合图1,对本实施例作详细说明。本实施例所涉及的一种三位一体有机硅防污功能合成革的制造方法,其特征在于,包括如下步骤:步骤S1表皮层的制备、步骤S2中间层的制备、步骤S3接着层的制备、步骤S4贴合、步骤S5熟化、步骤S6分离。
在步骤S1表皮层的制备中,将有机硅改性树脂复配浆料涂覆在离型纸上,涂覆刀位为0.03-0.15mm,烘干;烘干后的表皮层厚度为0.01-0.1mm。具体至本实施例中,涂覆刀位为0.1mm,烘干后的表皮层厚度为0.08mm。在所使用的离型纸上设置有纹路,表皮层涂覆至离型纸上时将纹路转移至表皮层的表面。
在本步骤中有机硅改性树脂复配浆料中含有有机硅改性树脂、有机硅防污助剂、有机硅架桥剂。所使用的有机硅改性树脂复配浆料中有机硅改性树脂的用量为100质量份、有机硅助剂的用量为10质量份、有机硅架桥剂的用量为1-10质量份。具体的,有机硅架桥剂的用量为6质量份。
所配制的有机硅改性树脂浆料的黏度在3000-10000cps/25℃,按照150-250g/m的涂布量涂覆至离型纸上。具体的,在本实施例中,黏度调配7000cps/25℃,涂布量为200g/m,涂布宽度为1.4m。
具体的,在步骤中所使用的有机硅改性树脂为有机硅成分占固成份30-70%的改性树脂。所述有机硅架桥剂为氮丙啶类架桥剂;所述有机硅防污助剂为反应型有机硅改性防污助剂。在本步骤中选择有机硅成分占固成份30-70%的有机硅改性树脂可实现与聚氨酯树脂的结合,提供成品表皮层的亲肤、抗污效果。
在步骤S2中间层的制备中,将有机硅粘结浆料涂覆在干燥后的表皮层上,涂覆刀位0.1-0.5mm,烘干;烘干后的中间层的成膜厚度为0.05-0.4mm。具体至本实施例中,涂覆刀位0.3mm,烘干后的中间层的成膜厚度为0.25mm。
在本步骤中,有机硅粘结浆料中含有有机硅粘结树脂、架桥剂、流平剂和色浆。有机硅粘结浆料中有机硅粘结树脂的用量为100质量份、架桥剂的用量为3-20质量份、流平剂的用量为0.1-2质量份、色浆的用量为1-10质量份。具体的,架桥剂的用量为12质量份、流平剂的用量为1.2质量份、色浆的用量为5质量份.
所配制的有机硅粘结浆料的黏度在3000-20000cps/25℃,按照150-450g/m的涂布量涂覆至表皮层上。具体的,黏度在12000cps/25℃,300g/m的涂布量。所述有机硅粘结树脂为一种二液型、高温反应型聚醚型聚氨酯树脂,分子量在3000-10000。所述架桥剂为二元醇、二元胺类小分子混合物。所述色浆为100%固含无溶剂色料。所述流平剂为100%固含有机硅改性表面活性剂。
在本步骤中选择一种100%固含的反应型聚氨酯树脂,通过高温条件下自交联反应,实现涂层成膜及与改性有机硅面层的结合。
在步骤S3接着层的制备中,将接着层浆料涂覆至烘干后的中间层表面上,涂覆刀位0.2-0.8mm。具体的,涂覆刀位0.5mm,烘干后的成膜厚度为0.3mm。
本步骤中所使用的接着层浆料中含有无溶剂树脂A、无溶剂树脂B、流平剂、色浆、催化剂。接着层浆料中无溶剂树脂A的用量为100质量份、无溶剂树脂B的用量为3-20质量份、流平剂的用量是0.1-2质量份、色浆的用量为0-5质量份、催化剂的用量是0.1-1质量份。具体的,无溶剂树脂B的用量为16质量份、流平剂的用量是1.2质量份、色浆的用量为3质量份、催化剂的用量是0.6质量份。
所使用的无溶剂树脂A为聚醚多元醇混合物、无溶剂树脂B为聚醚异氰酸酯预聚体。所选用的聚醚异氰酸酯预聚体,可实现与有机硅粘结树脂的结合性,及提供成品丰满的手感。所述催化剂为胺类、金属铋类催化剂混合物。所述色浆为100%固含无溶剂色料。所述流平剂为100%固含有机硅改性表面活性剂。
具体的表皮层、中间层和接着层的配方及参数要求如下:
在步骤S4贴合中,在80-120℃条件下预烘1-2min,再将底布贴合在接着层表面。具体是在100℃条件下预烘1.5min。
在步骤S5熟化中,将贴合后的底布、接着层、中间层、表皮层和离型纸,在烘箱中进行熟化,设定温度在90-140℃,熟化时间为5-15min。具体的,温度在115℃,熟化时间为10min。
步骤S6、分离:将熟化后成品与离型纸分离并分别收卷。将熟化好的成品与离型纸通过导辊、2个收卷装置,分离、收卷;成品在成品收卷架上,离型纸在离型纸收卷架。
在本发明中,采用有机硅涂层技术:通过有机硅树脂的复配,实现与聚氨酯高分子材料可结合性设计。
采用高固含无溶剂涂层技术:高固含无溶剂涂层配方优化,实现与有机硅涂层、涤纶底布的有效结合。
1、有机硅面层树脂与本实施例中有机硅改性树脂相比结果如下:
项次 | 有机硅面层 | 本实施例有机硅改性面层 |
涂层结合性 | 与中间层结合性差 | 表皮层与中间层结合优异 |
常温耐折(次) | 1000次开裂 | ≥10万 |
2、100%固含树脂与本实施例有机硅粘结树脂相比结果如下:
项次 | 100%固含树脂 | 本实施例有机硅粘结树脂 |
涂层结合性 | 与有机硅改性层结合性差 | 表皮层与中间层结合优异 |
常温耐折(次) | 1000次开裂 | ≥10万 |
3、普通无溶剂树脂底浆与本实施例无溶剂接着层相比结果如下:
项次 | 普通无溶剂树脂 | 本实施例无溶剂接着层树脂 |
涂层结合性 | 与有机硅粘结层结合性差 | 与有机硅粘结层结合优异 |
常温耐折(次) | 5000次开裂 | ≥10万 |
4、传统溶剂型防污合成革与本实施例防污合成革对比结果如下:
由上述的对比结果可以看出本实施例所制备的防污合成革,即具有亲肤触感,又具有防污的功能。并且表皮层中间层结合优异,中间层与接着层结合优异,常温耐折均在10万次以上。
以上详细描述了本发明的较佳具体实施例。应当理解,本领域的普通技术人员无需创造性劳动就可以根据本发明的构思做出诸多修改和变化。因此,凡本技术领域中技术人员依本发明的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案,皆应在由权利要求书所确定的保护范围内。
Claims (8)
1.一种三位一体有机硅防污功能合成革的制造方法,其特征在于,包括如下步骤:
步骤S1、表皮层的制备:将有机硅改性树脂复配浆料涂覆在离型纸上,涂覆刀位为0.03-0.15mm,烘干;烘干后的表皮层厚度为0.01-0.1mm;
所述有机硅改性树脂复配浆料中含有有机硅改性树脂、有机硅防污助剂、有机硅架桥剂;
所配制的有机硅改性树脂浆料的黏度在3000-10000cps/25℃,按照150-250g/m的涂布量涂覆至离型纸上;
所述有机硅改性树脂为有机硅成分占固成份30-70%的改性树脂;
步骤S2、中间层的制备:将有机硅粘结浆料涂覆在干燥后的表皮层上,涂覆刀位0.1-0.5mm,烘干;烘干后的中间层的成膜厚度为0.05-0.4mm;
所述有机硅粘结浆料中含有有机硅粘结树脂、架桥剂、流平剂和色浆;
所配制的有机硅粘结浆料的黏度在3000-20000cps/25℃,按照150-450g/m的涂布量涂覆至表皮层上;
所述有机硅粘结树脂为一种二液型、高温反应型聚醚型聚氨酯树脂,分子量在3000-10000;
所述色浆为100%固含无溶剂色料;
步骤S3、接着层的制备:将接着层浆料涂覆至烘干后的中间层表面上,涂覆刀位0.2-0.8mm;
所述接着层浆料中含有无溶剂树脂A、无溶剂树脂B、流平剂、色浆、催化剂;
所述无溶剂树脂A为聚醚多元醇混合物;所述无溶剂树脂B为聚醚异氰酸酯预聚体;
步骤S4、贴合:在80-120℃条件下预烘1-2min,再将底布贴合在接着层表面;
步骤S5、熟化:将贴合后的底布、接着层、中间层、表皮层和离型纸,在烘箱中进行熟化,设定温度在90-140℃,熟化时间为5-15min;
步骤S6、分离:将熟化后成品与离型纸分离并分别收卷。
2.根据权利要求1所述的一种三位一体有机硅防污功能合成革的制造方法,其特征在于,步骤S1中,所述有机硅架桥剂为氮丙啶类架桥剂;所述有机硅防污助剂为反应型有机硅改性防污助剂。
3.根据权利要求1所述的一种三位一体有机硅防污功能合成革的制造方法,其特征在于,所述催化剂为胺类、金属铋类催化剂混合物。
4.根据权利要求1所述的一种三位一体有机硅防污功能合成革的制造方法,其特征在于,所述架桥剂为二元醇、二元胺类小分子混合物。
5.根据权利要求1所述的一种三位一体有机硅防污功能合成革的制造方法,其特征在于,所述流平剂为100%固含有机硅改性表面活性剂。
6.根据权利要求1所述的一种三位一体有机硅防污功能合成革的制造方法,其特征在于,所述有机硅改性树脂复配浆料中有机硅改性树脂的用量为100质量份、有机硅助剂的用量为10质量份、所述有机硅架桥剂的用量为1-10质量份。
7.根据权利要求1所述的一种三位一体有机硅防污功能合成革的制造方法,其特征在于,所述有机硅粘结浆料中有机硅粘结树脂的用量为100质量份、所述架桥剂的用量为3-20质量份、所述流平剂的用量为0.1-2质量份、所述色浆的用量为1-10质量份。
8.根据权利要求1所述的一种三位一体有机硅防污功能合成革的制造方法,其特征在于,所述接着层浆料中无溶剂树脂A的用量为100质量份、无溶剂树脂B的用量为3-20质量份、流平剂的用量是0.1-2质量份、色浆的用量为0-5质量份、催化剂的用量是0.1-1质量份。
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