CN114670528A - 一种高耐磨pu人造革及其制备工艺 - Google Patents

一种高耐磨pu人造革及其制备工艺 Download PDF

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CN114670528A
CN114670528A CN202210421064.3A CN202210421064A CN114670528A CN 114670528 A CN114670528 A CN 114670528A CN 202210421064 A CN202210421064 A CN 202210421064A CN 114670528 A CN114670528 A CN 114670528A
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仰雪林
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    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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Abstract

本发明提供一种高耐磨PU人造革及其制备工艺,涉及PU人造革加工技术领域。该高耐磨PU人造革及其制备工艺,包括基布层,所述基布层为无纺布或棉麻布的一种,所述基布层的顶部铺设有尼龙网层,所述尼龙网层是由尼龙材料编织而成,且尼龙网层呈矩形网状结构;所述基布层和尼龙网层的顶部淋涂有PU皮革层;所述PU皮革层是由聚氨酯高温淋涂成型;所述基布层的底部滚涂有第一粘接层,所述第一粘接层的底部粘结有保温层;所述保温层的底部滚涂有第二粘接层,所述第二粘接层的底部粘结有内绒布层。通过设计简单的复合式PU人造革,不仅大大提高了PU人造革的耐磨性,同时也增强了PU人造革的柔软度和保暖性能,作为服饰材料使用时,舒适性较好。

Description

一种高耐磨PU人造革及其制备工艺
技术领域
本发明涉及PU人造革加工技术领域,具体为一种高耐磨PU人造革及其制备工艺。
背景技术
PU,化学中文名称聚氨酯。PU人造革就是聚氨酯成分的表皮。广泛适用于做箱包、服装、鞋、车辆和家具的装饰,它已日益得到市场的肯定,其应用范围之广,数量之大,品种之多,是传统的天然皮革无法满足的。PU人造革其质量也有好坏,好的PU人造革甚至比真皮价格还昂贵。以起毛布为底基,以聚氨酯溶液为涂料制成。起毛布用聚氨酯溶液浸渍、涂覆并经水浴凝固后所得的微孔层,经磨面后即成聚氨酯绒面革。这种人造革质地轻软、耐磨、保暖、手感不受冷暖变化的影响,适于制作服装、较高级的包、袋和装饰用品。
PU人造革是一种运用十分广泛的人造皮革,在很多装饰领域都有应用,根据实际需求的不同,PU人造革也有多种不同的种类,目前市场上有多种不同类型的PU人造革,但现有大多数PU人造革的结构以及加工工艺过于简单,整体耐磨性较差,经过长时间的使用后,其内外表层容易产生开裂脱落,而且其整体的柔软度和保暖性较差,作为服饰材料使用时,舒适性较差。
为此,我们研发出了新的一种高耐磨PU人造革及其制备工艺。
发明内容
(一)解决的技术问题
针对现有技术的不足,本发明提供了一种高耐磨PU人造革及其制备工艺,解决了现有大多数PU人造革的结构以及加工工艺过于简单,整体耐磨性较差,经过长时间的使用后,其内外表层容易产生开裂脱落,而且其整体的柔软度和保暖性较差,作为服饰材料使用时,舒适性较差的问题。
(二)技术方案
为实现以上目的,本发明通过以下技术方案予以实现:一种高耐磨PU人造革,包括基布层,所述基布层的顶部铺设有尼龙网层,所述基布层和尼龙网层的顶部淋涂有PU皮革层;
所述基布层的底部滚涂有第一粘接层,所述第一粘接层的底部粘结有保温层;
所述保温层的底部滚涂有第二粘接层,所述第二粘接层的底部粘结有内绒布层。
优选的,所述基布层为无纺布或棉麻布的一种。
优选的,所述尼龙网层是由尼龙材料编织而成,且尼龙网层呈矩形网状结构。
通过上述技术方案,由尼龙材料编织而成矩形网状结构尼龙网层不仅可以增强PU皮革层的整体强度,同时也可以防止PU皮革层发生开裂脱落,从而进一步提升了PU人造革的整体耐磨性。
优选的,所述PU皮革层是由聚氨酯高温淋涂成型。
通过上述技术方案,由聚氨酯高温淋涂成型的PU皮革层不仅保证了聚氨酯材料的淋涂质量,同时也可以对基布层、尼龙网起到稳定的粘结固定作用。
优选的,所述保温层是由棉布材料制成。
通过上述技术方案,由棉布材料制成的保温层具有较好的保温效果,从而进一步增强了磨PU人造革的整体保温性能。
优选的,所述第一粘接层和第二粘接层均是由粘结胶滚涂形成。
通过上述技术方案,粘结胶为万能胶、聚烯烃复合胶、水性不干胶、糊盒胶或水性复膜胶中的一种,第一粘接层和第二粘接层可以提高保温层和内绒布层的粘结质量。
一种高耐磨PU人造革的制备工艺,包括以下具体步骤:
S1.初期备料,准备基布层、尼龙网、PU胶、粘结胶、保温层和内绒布层;
S2.将尼龙网平铺在与基布层的表面,并使尼龙网与基布层贴紧定位;
S3.将PU胶料加热熔化,并利用淋涂设备将PU胶料淋涂在基布层和尼龙网表层;
S4.利用自然降温或冷却设备进行辅助制冷,对上述人造革进行降温冷却,使PU胶料形成复合PU皮革层,同时也使基布层、尼龙网和PU皮革层形成一个整体结构;
S5.在基布层内表面滚涂粘结胶,形成第一粘接层;
S6.将保温层粘接固定在第一粘接层的表面;
S7.在保温层的内表面滚涂粘结胶,形成第二粘接层;
S8.将内绒布层粘接固定在第二粘接层的表面,形成完整的人造革;
S9.采用分段式辊压机对上述人造革进行辊压,使基布层、尼龙网层、PU皮革层、第一粘接层、保温层、第二粘接层和内绒布层之间连接更为紧密,并形成完整的人造革;
S10.对人造革进行表面处理、压花、冷却和分切收卷。
优选的,所述S9中采用分段式辊压机对人造革进行辊压后,根据实际需要进行低温烘干,加速第一粘接层和第二粘接层的固结速度。
(三)有益效果
本发明提供了一种高耐磨PU人造革及其制备工艺。具备以下有益效果:
1、该高耐磨PU人造革及其制备工艺,通过设计简单的复合式PU人造革,不仅大大提高了PU人造革的耐磨性,同时也增强了PU人造革的柔软度和保暖性能,作为服饰材料使用时,舒适性较好。
2、该高耐磨PU人造革及其制备工艺,通过在PU人造革中复合尼龙网层,由尼龙材料编织而成矩形网状结构尼龙网层不仅可以增强PU人造革的整体强度,同时也可以防止PU皮革层发生开裂脱落,从而进一步提升了PU人造革的整体耐磨性。
附图说明
图1为本发明PU人造革的结构示意图;
图2为本发明尼龙网层的结构示意图;
图3为本发明实施例一的工艺流程图;
图4为本发明实施例二的工艺流程图。
其中,1、基布层;2、尼龙网层;3、PU皮革层;4、第一粘接层;5、保温层;6、第二粘接层;7、内绒布层。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例一:
如图1-2所示,本发明实施例提供一种高耐磨PU人造革,包括基布层1,基布层1为无纺布或棉麻布的一种,基布层1的顶部铺设有尼龙网层2,尼龙网层2是由尼龙材料编织而成,且尼龙网层2呈矩形网状结构,由尼龙材料编织而成矩形网状结构尼龙网层2不仅可以增强PU皮革层3的整体强度,同时也可以防止PU皮革层3发生开裂脱落,从而进一步提升了PU人造革的整体耐磨性,基布层1和尼龙网层2的顶部淋涂有PU皮革层3;PU皮革层3是由聚氨酯高温淋涂成型,由聚氨酯高温淋涂成型的PU皮革层3不仅保证了聚氨酯材料的淋涂质量,同时也可以对基布层1、尼龙网2起到稳定的粘结固定作用;
基布层1的底部滚涂有第一粘接层4,第一粘接层4的底部粘结有保温层5,保温层5是由棉布材料制成,由棉布材料制成的保温层5具有较好的保温效果,从而进一步增强了磨PU人造革的整体保温性能;
保温层5的底部滚涂有第二粘接层6,第二粘接层6的底部粘结有内绒布层7;第一粘接层4和第二粘接层6均是由粘结胶滚涂形成,粘结胶为万能胶、聚烯烃复合胶、水性不干胶、糊盒胶或水性复膜胶中的一种,第一粘接层4和第二粘接层6可以提高保温层5和内绒布层7的粘结质量。
如图3所示,一种高耐磨PU人造革的制备工艺,包括以下具体步骤:
S101.初期备料,准备基布层1、尼龙网2、PU胶、粘结胶、保温层5和内绒布层7;
S102.将尼龙网2平铺在与基布层1的表面,并使尼龙网2与基布层1贴紧定位;
S103.将PU胶料加热熔化,并利用淋涂设备将PU胶料淋涂在基布层1和尼龙网2表层;
S104.利用自然降温或冷却设备进行辅助制冷,对上述人造革进行降温冷却,使PU胶料形成复合PU皮革层3,同时也使基布层1、尼龙网2和PU皮革层3形成一个整体结构;
S105.在基布层1内表面滚涂粘结胶,形成第一粘接层4;
S106.将保温层5粘接固定在第一粘接层4的表面;
S107.在保温层5的内表面滚涂粘结胶,形成第二粘接层6;
S108.将内绒布层7粘接固定在第二粘接层6的表面,形成完整的人造革;
S109.采用分段式辊压机对上述人造革进行辊压,使基布层1、尼龙网层2、PU皮革层3、第一粘接层4、保温层5、第二粘接层6和内绒布层7之间连接更为紧密,并形成完整的人造革;
S110.对人造革进行表面处理、压花、冷却和分切收卷。
进一步的,S9中采用分段式辊压机对人造革进行辊压后,根据实际需要进行低温烘干,加速第一粘接层4和第二粘接层6的固结速度。
实施例二:
如图4所示,本实施例在基于实施例一的基础上,提出了另一种加工工艺,具体工艺步骤如下:
S201.初期备料,准备基布层1、尼龙网2、PU胶、粘结胶、保温层5和内绒布层7;
S202.将尼龙网2平铺在与基布层1的表面,并使尼龙网2与基布层1贴紧定位;
S203.将PU胶料加热熔化,并利用淋涂设备将PU胶料淋涂在基布层1和尼龙网2表层;
S204.利用自然降温或冷却设备进行辅助制冷,对上述人造革进行降温冷却,使PU胶料形成复合PU皮革层3,同时也使基布层1、尼龙网2和PU皮革层3形成一个整体结构;
S205.在基布层1内表面滚涂粘结胶,形成第一粘接层4;
S206.将保温层5粘接固定在第一粘接层4的表面;
S207.采用辊压机对人造革进行第一次辊压,使保温层5稳定粘结在基布层1内表面;
S208.在保温层5的内表面滚涂粘结胶,形成第二粘接层6;
S209.将内绒布层7粘接固定在第二粘接层6的表面,形成完整的人造革;
S210.采用辊压机对上述人造革进行二次辊压,使基布层1、尼龙网层2、PU皮革层3、第一粘接层4、保温层5、第二粘接层6和内绒布层7之间连接更为紧密,并形成完整的人造革;
S211.对人造革进行表面处理、压花、冷却和分切收卷。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神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,本发明的范围由所附权利要求及其等同物限定。

Claims (8)

1.一种高耐磨PU人造革,包括基布层(1),其特征在于:所述基布层(1)的顶部铺设有尼龙网层(2),所述基布层(1)和尼龙网层(2)的顶部淋涂有PU皮革层(3);
所述基布层(1)的底部滚涂有第一粘接层(4),所述第一粘接层(4)的底部粘结有保温层(5);
所述保温层(5)的底部滚涂有第二粘接层(6),所述第二粘接层(6)的底部粘结有内绒布层(7)。
2.根据权利要求1所述的一种高耐磨PU人造革,其特征在于:所述基布层(1)为无纺布或棉麻布的一种。
3.根据权利要求1所述的一种高耐磨PU人造革,其特征在于:所述尼龙网层(2)是由尼龙材料编织而成,且尼龙网层(2)呈矩形网状结构。
4.根据权利要求1所述的一种高耐磨PU人造革,其特征在于:所述PU皮革层(3)是由聚氨酯高温淋涂成型。
5.根据权利要求1所述的一种高耐磨PU人造革,其特征在于:所述保温层(5)是由棉布材料制成。
6.根据权利要求1所述的一种高耐磨PU人造革,其特征在于:所述第一粘接层(4)和第二粘接层(6)均是由粘结胶滚涂形成,粘结胶为万能胶、聚烯烃复合胶、水性不干胶、糊盒胶或水性复膜胶中的一种。
7.根据权利要求1-6中任意一项所述的一种高耐磨PU人造革的制备工艺,其特征在于,包括以下具体步骤:
S1.初期备料,准备基布层(1)、尼龙网(2)、PU胶、粘结胶、保温层(5)和内绒布层(7);
S2.将尼龙网(2)平铺在与基布层(1)的表面,并使尼龙网(2)与基布层(1)贴紧定位;
S3.将PU胶料加热熔化,并利用淋涂设备将PU胶料淋涂在基布层(1)和尼龙网(2)表层;
S4.利用自然降温或冷却设备进行辅助制冷,对上述人造革进行降温冷却,使PU胶料形成复合PU皮革层(3),同时也使基布层(1)、尼龙网(2)和PU皮革层(3)形成一个整体结构;
S5.在基布层(1)内表面滚涂粘结胶,形成第一粘接层(4);
S6.将保温层(5)粘接固定在第一粘接层(4)的表面;
S7.在保温层(5)的内表面滚涂粘结胶,形成第二粘接层(6);
S8.将内绒布层(7)粘接固定在第二粘接层(6)的表面,形成完整的人造革;
S9.采用分段式辊压机对上述人造革进行辊压,使基布层(1)、尼龙网层(2)、PU皮革层(3)、第一粘接层(4)、保温层(5)、第二粘接层(6)和内绒布层(7)之间连接更为紧密,并形成完整的人造革;
S10.对人造革进行表面处理、压花、冷却和分切收卷。
8.根据权利要求7所述的一种高耐磨PU人造革的制备工艺,其特征在于:所述S9中采用分段式辊压机对人造革进行辊压后,根据实际需要进行低温烘干,加速第一粘接层(4)和第二粘接层(6)的固结速度。
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Publication number Priority date Publication date Assignee Title
CN110254003A (zh) * 2019-06-04 2019-09-20 浙江锦尚合成革有限公司 一种抗折耐腐蚀高强合成革的配方及制造方法
CN110744907A (zh) * 2019-10-17 2020-02-04 浙江豪丰合成革有限公司 一种高耐磨pu人造革及其制备工艺

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CN110254003A (zh) * 2019-06-04 2019-09-20 浙江锦尚合成革有限公司 一种抗折耐腐蚀高强合成革的配方及制造方法
CN110744907A (zh) * 2019-10-17 2020-02-04 浙江豪丰合成革有限公司 一种高耐磨pu人造革及其制备工艺

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