CN112009051A - 一种tpu加强拉丝气垫及其生产工艺 - Google Patents
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Abstract
本发明公开了一种TPU加强拉丝气垫及其生产工艺,包括上网格布、下网格布、聚乙烯纤维拉丝层;聚乙烯纤维拉丝层由若干个呈X型的拉丝单元组成,上网格布的上端依次涂覆有上TPU涂层、上PVC涂层,下网格布的下端依次涂覆有下TPU涂层、下PVC涂层。本工艺为:制备空间布、制备PVC连接条、刮涂TPU涂层、刮涂PVC涂层、PVC连接条与空间布粘贴;本发明添加了一层TPU涂层,使得拉丝气垫压力承载能力和结构稳定性较都有所提高,极大的提高了产品的耐磨性和抗衰老性;且本工艺操作简单,不但提高了生产效率,且降低了生产成本;同时,涂层厚度减小,减小了拉丝气垫的重量,更方便使用者携带。
Description
技术领域
本发明涉及一种拉丝气垫及工艺,尤其涉及一种TPU加强拉丝气垫及其生产工艺。
背景技术
拉丝气垫由于具有使用灵活、占用体积小、携带方便、承载力量大等特点,近年来被广泛应用于各行各行,特别是在体育、医学、户外设备、运动设备行业中随处可见。目前,市面上传统的拉丝气垫存在着如下缺陷,1)传统的拉丝气垫的产品构较为疏松,抗老化性能差,热封性能较差,从而影响了气垫的使用寿命;2)传统拉丝气垫耐磨性较差;3)传统的拉丝气垫压力承载能力和结构稳定性较差;4)传统的拉丝气垫的表面涂层处理方法十分复杂,生产成本较高,极大的增加了拉丝气垫的重量,不利于使用者携带。
发明内容
为了解决上述技术所存在的不足之处,本发明提供了一种TPU加强拉丝气垫及其生产工艺。
为了解决以上技术问题,本发明采用的技术方案是:一种TPU加强拉丝气垫,包括上网格布、下网格布,它还包括位于上网格布和下网格布之间的聚乙烯纤维拉丝层,上网格布、下网格布通过聚乙烯纤维拉丝层相连接;
聚乙烯纤维拉丝层由若干个呈X型的拉丝单元组成,若干个拉丝单元纵横排列,且相邻的拉丝单元在上端、下端处连接;上网格布的上端涂覆有上TPU涂层,上TUP涂层的上端涂覆有上PVC涂层,下网格布的下端涂覆有下TPU涂层,下TPU涂层的下端涂覆有下PVC涂层。
进一步地,上网格布、下网格布及聚乙烯纤维拉丝层共同组成空间布,空间布的侧边粘贴有PVC连接条。
进一步地,上网格布、下网格布均由经线和纬线交织而成并形成四边形的网格,拉丝单元的顶端连接在上网格布的四边形顶点处,拉丝单元的底端连接在下网格布的四边形顶点处。
一种TPU加强拉丝气垫的生产工艺,包括以下步骤:
步骤一、预先准备好涤纶丝、聚乙烯纤维丝,采用三维编织技术,首先利用涤纶丝编织出上网格布、下网格布,再利用聚乙烯纤维丝在上、下网格布的四边形顶点处相互连接,形成呈X型的拉丝单元,若干个拉丝单元纵横排列在上、下网格布之间,形成聚乙烯纤维拉丝层;
步骤二、制备PVC连接条:所需原料为100重量份的PVC树脂、15重量份的天然橡胶、30重量份的环己烷二羧酸壬酯、4重量份钙锌热稳定剂、2重量份的色料;将上述原料经高速搅拌、密炼、精炼后进行辊压延,再经牵引、压花、冷却处理,然后经切边、卷取制得相应的PVC连接条;在此过程中,高速搅拌时温度控制在160℃,密炼温度控制在170℃,上顶栓压力控制在0.9Mpa;
步骤三、刮涂TPU涂层:利用刮涂装置,将TPU母点加热到60℃融化为TPU液,在上网格布的上端刮涂上TPU涂层,在网格布的下端刮涂下TPU涂层;
步骤四、刮涂PVC涂层:待上TPU涂层、下TPU涂层干后,再在上TPU涂层的上端刮涂上PVC涂层,在下TPU涂层的下端刮涂下PVC涂层,进一步确保涂层的刮涂效果;
步骤五、PVC连接条的粘合:在步骤一所获的空间布的两侧分别经上浆轮辊轮涂胶水,经烘干预定型处理,然后在空间布的两侧分别热熔贴合步骤二制得的PVC连接条,再经压花、冷却、定型、切边处理;辊轮涂胶水时,骨架材料沿其纵向水平移动,烘干预定型时,骨架材料沿其纵向竖直向上移动;烘干预定型温度控制在150℃;热熔贴合时,PVC膜与网格布贴合温度为210℃,贴合压力为620N,贴合速度为6m/min。
进一步地,上TPU涂层、下TPU涂层的刮涂厚度为0.2~0.3mm,上PVC涂层、下PVC涂层的刮涂厚度为0.4~0.5mm。
本发明公开了一种TPU加强拉丝气垫及其生产工艺,该TPU加强拉丝气垫在PVC涂层的中间添加了一层TPU涂层,使得拉丝气垫压力承载能力和结构稳定性较都有所提高,对比传统的拉丝气垫极大的提高了产品的耐磨性和抗衰老性;本工艺操作简单,相比于传统的复杂的表面涂层处理方法,不但提高了生产效率,且降低了生产成本;同时,涂层厚度减小,减小了拉丝气垫的重量,更方便使用者携带。
附图说明
图1为本发明上网格布或下网格布的结构示意图。
图2为本发明空间布的结构示意视图。
图3为本发明整体结构的侧视图。
图4为本发明TPU母点加热为TPU液的过程示意图。
图中:1、上网格布;2、聚乙烯纤维拉丝层;3、下网格布;4、上TPU涂层;5、上PVC涂层;6、下TPU涂层;7、下PVC涂层。
具体实施方式
下面结合附图和具体实施方式对本发明作进一步详细的说明。
如图3所示的一种TPU加强拉丝气垫,包括上网格布1、下网格布3,它还包括位于上网格布1和下网格布3之间的聚乙烯纤维拉丝层2,上网格布1、下网格布3通过聚乙烯纤维拉丝层2相连接;
由上网格布1、下网格布3以及聚乙烯纤维层2共同组成图2所示的空间布,其中,采用聚乙烯纤维作为中间的拉丝层,充分利用聚乙烯纤维强度高,密度低,绝缘性佳等优点,大大提升了拉丝气垫的性能;对于中间的聚乙烯纤维拉丝层2,其由若干个呈X型的拉丝单元组成,若干个拉丝单元纵横排列,且相邻的拉丝单元在上端、下端处连接;具体的有:如图1所示,上网格布1、下网格布3均由经线和纬线交织而成并形成四边形的网格,由拉丝单元的顶端连接在上网格布1的四边形顶点处,拉丝单元的底端连接在下网格布3的四边形顶点处,从而,通过聚乙烯纤维将上网格布、下网格布连接起来。
为进一步提高最终得到的拉丝气垫的结构强度和耐磨性,在PVC涂层内,涂覆有TPU涂层,TPU涂层采用图4所示的TPU母点加热获得的TPU液进行涂覆,具体有:如图3所示,在上网格布1的上端涂覆有上TPU涂层4,下TPU涂层6的下端涂覆有下PVC涂层7。涂覆好TPU涂层后,再在上TUP涂层4的上端涂覆有上PVC涂层5,下网格布1的下端涂覆有下TPU涂层6。
此外,上网格布1、下网格布3及聚乙烯纤维拉丝层2所共同组成的空间布的侧边还粘贴有PVC连接条,由PVC连接条在侧边进行包边。
本发明还公开了一种TPU加强拉丝气垫的生产工艺,包括以下步骤:
步骤一、预先准备好涤纶丝、聚乙烯纤维丝,采用三维编织技术,首先利用涤纶丝编织出上网格布1、下网格布3,再利用聚乙烯纤维丝在上、下网格布的四边形顶点处相互连接,形成呈X型的拉丝单元,若干个拉丝单元纵横排列在上、下网格布之间,形成聚乙烯纤维拉丝层2;
步骤二、制备PVC连接条:所需原料为100重量份的PVC树脂、15重量份的天然橡胶、30重量份的环己烷二羧酸壬酯、4重量份钙锌热稳定剂、2重量份的色料;将上述原料经高速搅拌、密炼、精炼后进行辊压延,再经牵引、压花、冷却处理,然后经切边、卷取制得相应的PVC连接条;在此过程中,高速搅拌时温度控制在160℃,密炼温度控制在170℃,上顶栓压力控制在0.9Mpa;
步骤三、刮涂TPU涂层:利用刮涂装置,将TPU母点加热到60℃融化为TPU液,在上网格布1的上端刮涂上TPU涂层4,在网格布3的下端刮涂下TPU涂层6;
步骤四、刮涂PVC涂层:待上TPU涂层4、下TPU涂层6干后,再在上TPU涂层4的上端刮涂上PVC涂层5,在下TPU涂层6的下端刮涂下PVC涂层7,进一步确保涂层的刮涂效果;
步骤五、PVC连接条的粘合:在步骤一所获的空间布的两侧分别经上浆轮辊轮涂胶水,经烘干预定型处理,然后在空间布的两侧分别热熔贴合步骤二制得的PVC连接条,再经压花、冷却、定型、切边处理;辊轮涂胶水时,骨架材料沿其纵向水平移动,烘干预定型时,骨架材料沿其纵向竖直向上移动;烘干预定型温度控制在150℃;热熔贴合时,PVC膜与网格布贴合温度为210℃,贴合压力为620N,贴合速度为6m/min。
其中,上TPU涂层4、下TPU涂层6的刮涂厚度为0.2~0.3mm,上PVC涂层5、下PVC涂层7的刮涂厚度为0.4~0.5mm。
本发明所公开的TPU加强拉丝气垫及其生产方法,拉丝气垫上的TPU涂层,极大的提高了产品的耐磨性和抗衰老性;同时优化了生产工艺,提高了生产效率,并且在保证了质量的前提下,还大大降低了产品的重量,更便于使用者携带。
上述实施方式并非是对本发明的限制,本发明也并不仅限于上述举例,本技术领域的技术人员在本发明的技术方案范围内所做出的变化、改型、添加或替换,也均属于本发明的保护范围。
Claims (5)
1.一种TPU加强拉丝气垫,包括上网格布(1)、下网格布(3),其特征在于:它还包括位于上网格布(1)和下网格布(3)之间的聚乙烯纤维拉丝层(2),上网格布(1)、下网格布(3)通过聚乙烯纤维拉丝层(2)相连接;
所述聚乙烯纤维拉丝层(2)由若干个呈X型的拉丝单元组成,若干个拉丝单元纵横排列,且相邻的拉丝单元在上端、下端处连接;所述上网格布(1)的上端涂覆有上TPU涂层(4),上TUP涂层(4)的上端涂覆有上PVC涂层(5),所述下网格布(1)的下端涂覆有下TPU涂层(6),下TPU涂层(6)的下端涂覆有下PVC涂层(7)。
2.根据权利要求1所述的TPU加强拉丝气垫,其特征在于:所述上网格布(1)、下网格布(3)及聚乙烯纤维拉丝层(2)共同组成空间布,空间布的侧边粘贴有PVC连接条。
3.根据权利要求2所述的TPU加强拉丝气垫,其特征在于:所述上网格布(1)、下网格布(3)均由经线和纬线交织而成并形成四边形的网格,拉丝单元的顶端连接在上网格布(1)的四边形顶点处,拉丝单元的底端连接在下网格布(3)的四边形顶点处。
4.一种如权利要求3所述的TPU加强拉丝气垫的生产工艺,其特征在于:所述生产工艺包括以下步骤:
步骤一、预先准备好涤纶丝、聚乙烯纤维丝,采用三维编织技术,首先利用涤纶丝编织出上网格布(1)、下网格布(3),再利用聚乙烯纤维丝在上、下网格布的四边形顶点处相互连接,形成呈X型的拉丝单元,若干个拉丝单元纵横排列在上、下网格布之间,形成聚乙烯纤维拉丝层(2);
步骤二、制备PVC连接条:所需原料为100重量份的PVC树脂、15重量份的天然橡胶、30重量份的环己烷二羧酸壬酯、4重量份钙锌热稳定剂、2重量份的色料;将上述原料经高速搅拌、密炼、精炼后进行辊压延,再经牵引、压花、冷却处理,然后经切边、卷取制得相应的PVC连接条;在此过程中,高速搅拌时温度控制在160℃,密炼温度控制在170℃,上顶栓压力控制在0.9Mpa;
步骤三、刮涂TPU涂层:利用刮涂装置,将TPU母点加热到60℃融化为TPU液,在上网格布(1)的上端刮涂上TPU涂层(4),在网格布(3)的下端刮涂下TPU涂层(6);
步骤四、刮涂PVC涂层:待上TPU涂层(4)、下TPU涂层(6)干后,再在上TPU涂层(4)的上端刮涂上PVC涂层(5),在下TPU涂层(6)的下端刮涂下PVC涂层(7),进一步确保涂层的刮涂效果;
步骤五、PVC连接条的粘合:在步骤一所获的空间布的两侧分别经上浆轮辊轮涂胶水,经烘干预定型处理,然后在空间布的两侧分别热熔贴合步骤二制得的PVC连接条,再经压花、冷却、定型、切边处理;辊轮涂胶水时,骨架材料沿其纵向水平移动,烘干预定型时,骨架材料沿其纵向竖直向上移动;烘干预定型温度控制在150℃;热熔贴合时,PVC膜与网格布贴合温度为210℃,贴合压力为620N,贴合速度为6m/min。
5.根据权利要求4所述的TPU加强拉丝气垫的生产工艺,其特征在于:所述上TPU涂层(4)、下TPU涂层(6)的刮涂厚度为0.2~0.3mm,上PVC涂层(5)、下PVC涂层(7)的刮涂厚度为0.4~0.5mm。
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