CN112760808A - 一种水刺复合面料及其制备方法和应用 - Google Patents
一种水刺复合面料及其制备方法和应用 Download PDFInfo
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Abstract
本申请公开了一种水刺复合面料的制备方法,采用预湿后的面层和结构层进行水刺复合得到复合面层,对所述复合面层进行拒水处理得到拒水性复合面层,采用冲孔工艺在拒水性复合面层上制作网孔,将结构层和导流层复合,以使导流层覆盖所述拒水性复合面层上的网孔,从而得到所述水刺复合面料。本申请创造性地将面层和结构层进行水刺复合后,能够得到强度更高的复合面层,使进而得到边缘更加清晰的网孔,从而保证了面层的吸液速度不会受到网孔边缘的纤维的阻碍;此外,将复合面层和导流层复合,并覆盖复合面层的网孔后,能够在通过导流层增加面层的吸液速度的同时,有效防止面层的网孔出现漏胶的情况,从而得到吸液速度快且不发生漏胶的水刺复合面料。
Description
技术领域
本发明涉及卫生制品技术领域,具体涉及一种水刺复合面料及其制备方法和应用。
背景技术
市面上用于卫生制品面层的材料可分为四大类,分别为纺粘布、热风布、流延膜、水刺无纺布。纺粘无纺布、热风无纺布、流延膜均由化纤原料制成,具备很好的干爽性能,但亲肤性、舒适性较差。
随着人们生活水平的提高,消费者对卫生巾、尿裤等卫生制品的舒适性、安全性要求越来越高,而水刺无纺布具备优异的亲肤、柔软性能,能够满足消费者亲肤性、舒适性、安全性的需求,使得其被越来越多的应用到卫生制品的面层。
卫生制品的面层有很多网孔存在,但很多网孔存在边缘不清晰的问题;此外,为了使液体快速通过面层,面层网孔设计通常比较大,由于面层大网孔的设计,喷涂在卫生制品吸收层上面的胶体会直接透过面层的大网孔渗入面层,导致面层有漏胶风险,影响用户产品使用体验。
因此,如何提高面层的吸液速度且避免面层漏胶是改进卫生制品的难点。
发明内容
本申请的目的是提供一种水刺复合面料及其制备方法和应用,以在提升面层吸液速度的同时,避免面层出现漏胶的情况。
为了实现上述目的,本申请采用了以下技术方案:
本申请的第一方面公开了一种水刺复合面料的制备方法,采用预湿后的面层和结构层进行水刺复合得到复合面层,对复合面层进行拒水处理得到拒水性复合面层,采用冲孔工艺在拒水性复合面层上制作网孔,将结构层和导流层复合,以使导流层覆盖拒水性复合面层上的网孔,从而得到水刺复合面料。
需要说明的是,本申请创造性地将面层和结构层进行水刺复合后,相比于原有的单层面层,能够得到强度更高的复合面层,这种复合面层的强力能够满足冲孔工艺所需的布面强度,从而能够实现在对复合面层进行拒水处理后,使用冲孔工艺在复合面层上制作边缘更加清晰的网孔,从而保证了面层的吸液速度不会受到网孔边缘的纤维的阻碍;此外,将复合面层和导流层复合,并覆盖复合面层的网孔后,能够在通过导流层增加面层的吸液速度的同时,有效防止面层的网孔出现漏胶的情况,从而得到吸液速度快且不发生漏胶的水刺复合面料。
本申请的一种实现方式中,面层的克重为8-40g/m2,结构层的克重为6-25g/m2,导流层的克重为12-30g/m2;
优选地,面层采用纤维网层,纤维网层包括至少一层纤维网;
优选地,结构层采用热熔性无纺布,更优选为热风无纺布;
优选地,导流层采用亲水热风无纺布。
值得说明的是,本申请水刺复合面料中面层和结构层的克重较低,能够使得复合面层的总体持液量较低,进一步增加复合面层的干爽性。
作为优选地,本申请采用热风无纺布作为结构层,原因在于热风无纺布具有蓬松的布面结构,便于面层与其水刺复合,两层布经水刺复合后,面层中的纤维会与蓬松的热风布面的纤维结合更紧密,结合效果更佳,不易分层。此外,相较于导流层使用的亲水热风无纺布,结构层使用的热风无纺布纤维偏细,布面更加柔软,与面层复合后,复合无纺布的柔软性也会更好,同时也起到增强复合布面强力的作用。相较于结构层使用的热风无纺布,导流层使用的热风无纺布会偏硬一些,其使用到的纤维更粗一些,以便其具备更好的液体导流特性。
本申请的一种实现方式中,纤维网层的制备过程包括:
备料:将纤维备好,以备使用;
梳理:采用梳棉机将纤维梳顺;
铺网:采用垂直铺网或交叉铺网的方式将纤维铺成纤维网层;
优选地,采用垂直铺网的方式将纤维制成纤维网层。
值得说明的是,本申请铺制纤维网层使用的纤维克重较低,可以采用垂直铺网的方式将纤维制成纤维网层,相比于交叉铺网的方式,垂直铺网更加均匀,铺网速度更快。
本申请的一种实现方式中,对复合面层进行拒水处理得到拒水性复合面层具体包括:
对复合面层进行轧干和高温水洗,对经高温水洗的复合面层进行拒水处理,对经拒水处理的复合面层进行烘干,得到拒水性复合面层;
优选地,采用80-100℃的高温水对复合面层进行高温水洗。
本申请的一种实现方式中,网孔为圆形网孔、椭圆形网孔或方形网孔中的任意一种;
优选地,网孔为圆形网孔;
优选地,圆形网孔的孔径为1-5mm。
本申请的一种实现方式中,将与纤维网层复合的结构层和导流层复合的方式包括超声波复合或热复合中的任意一种;
优选地,将与纤维网层复合的结构层和导流层复合的方式为超声波复合。
本申请的第二方面公开了一种上述制备方法制备的水刺复合面料。
本申请的第三方面公开了一种上述水刺复合面料的应用。
本申请的第四方面公开了一种采用上述水刺复合面料作为表层的卫生制品。
需要说明的是,本申请的卫生制品包括表层,表层采用上述复合面料,通过拒水性面层保持表层干爽的同时,还能够通过复合面料的网孔和导流层增加表层的吸液速度,同时导流层也能避免卫生制品的表层出现漏胶的风险。
本申请的一种实现方式中,还包括吸收层和底膜,表层覆盖于吸收层的一侧,以使复合面料的导流层和吸收层相接触,底膜覆盖于吸收层远离复合面料的拒水性复合面层的一侧。
由于采用以上技术方案,本申请的有益效果在于:
本申请创造性地将面层和结构层进行水刺复合后,相比于原有的单层面层,能够得到强度更高的复合面层,这种复合面层的强力能够满足冲孔工艺所需的布面强度,从而能够实现在对复合面层进行拒水处理后,使用冲孔工艺在复合面层上制作边缘更加清晰的网孔,从而保证了面层的吸液速度不会受到网孔边缘的纤维的阻碍;此外,将复合面层和导流层复合,并覆盖复合面层的网孔后,能够在通过导流层增加面层的吸液速度的同时,有效防止面层的网孔出现漏胶的情况,从而得到吸液速度快且不发生漏胶的水刺复合面料。
附图说明
图1为本实施例提供的一种纯棉水刺复合面料的结构示意图;
图2为本实施例提供的一种卫生制品的结构示意图。
具体实施方式
下面通过具体实施方式对本发明作进一步详细说明。在以下的实施方式中,很多细节描述是为了使得本申请能被更好的理解。然而,本领域技术人员可以毫不费力的认识到,其中部分特征在不同情况下是可以省略的,或者可以由其他材料、方法所替代。在某些情况下,本申请相关的一些操作并没有在说明书中显示或者描述,这是为了避免本申请的核心部分被过多的描述所淹没,而对于本领域技术人员而言,详细描述这些相关操作并不是必要的,他们根据说明书中的描述以及本领域的一般技术知识即可完整了解相关操作。
另外,说明书中所描述的特点、操作或者特征可以以任意适当的方式结合形成各种实施方式。同时,方法描述中的各步骤或者动作也可以按照本领域技术人员所能显而易见的方式进行顺序调换或调整。因此,说明书中的各种顺序只是为了清楚描述某一个实施例,并不意味着是必须的顺序,除非另有说明其中某个顺序是必须遵循的。
为了进一步说明本申请,以下结合实施例对本申请提供的水刺复合面料及其制备方法和应用进行详细描述,但是应当理解,这些实施例是在以本申请技术方案为前提下进行实施,给出了详细的实施方式和具体的操作过程,只是为进一步说明本申请的特征和优点,而不是对本申请权利要求的限制,本申请的保护范围也不限于下述的实施例。
本实施例水刺复合面料的制备方法,采用预湿后的面层11和结构层12进行水刺复合得到复合面层,对复合面层进行拒水处理得到拒水性复合面层1,采用冲孔工艺在拒水性复合面层1上制作网孔2,将结构层12和导流层3复合,以使导流层覆盖拒水性复合面层上网孔,从而得到水刺复合面料。本实施例制备的水刺复合面料结构示意图如图1所示。
本实施例以粘胶纤维为例,给出了从粘胶纤维制备水刺复合面料的整个过程,本实施例水刺复合面料涉及备料、梳理、铺网、预湿、水刺、轧干、高温水洗、拒水整理、烘干、冲孔、复合以及成品收卷等工艺,具体工艺过程如实施例1所示。本实施例涉及的工艺设备均为制备传统面料使用的工艺使用的设备。本实施例各个工艺流程使用的所有原料,对其来源没有特别限制,在市场上购买或按照本领域技术人员熟知的常规方法制备即可。
实施例1
本实施例通过粘胶纤维制备水刺复合面料的工艺流程包括:
1.备料:将100%粘胶纤维备好,以备使用;
2.梳理:使用梳棉机将粘胶纤维梳顺;
3.铺网:采用垂直铺网的方式铺制粘胶纤维网层,以粘胶纤维网层作为面层;
4.预湿:对粘胶纤维网层进行润湿,并以热风无纺布作为结构层,同步退卷提前准备好的热风无纺布,使得粘胶纤维网与热风无纺布有一个初步的结合;
5.水刺:利用水刺机的高压水流对粘胶纤维网层和热风无纺布进行正面及反面水刺,使得粘胶纤维相互缠结,同时,粘胶纤维也与热风无纺布进行了相互缠结,形成面层和结构层水刺复合的水刺复合面层。上述水刺工艺不仅加固了粘胶纤维抱合粘结的张力,也加固了纤维网层和热风无纺布之间结合的紧密度,最终增强了水刺复合面层的强力;
6.轧干:将面层与结构层复合布面的水分挤出,便于进行高温水洗工序;
7.高温水洗:采用80-100℃的高温水对水刺复合面层进行清洗,除去布面上残留的杂质,如棉籽壳、泥浆等,同时达到高温灭菌的目的,使得水刺复合面层布面的初始污染菌得到有效控制;
8.拒水整理:将高温水洗后的复合面层进行拒水整理,使得复合面层具有拒水特性;
9.烘干;
10.冲孔:用冲孔设备对烘干后的水刺复合面层进行冲孔,孔型是圆形,孔型直径为1mm-5mm。对水刺复合面层进行冲孔后,由于水刺复合面层的布面是拒水的,液体可以通过网孔穿透布面,而不会有液体存留在水刺复合面层,水刺复合面料的面层的干爽性可以得到保证;
11.复合:以亲水热风无纺布作为导流层,将导流层与已经和面层水刺复合的结构层进行超声波复合,以得到水刺复合面层和导流层复合的水刺复合面料,其中亲水热风无纺布为表现为亲水,液体通过水刺复合面层的网孔时,能够被导流层快速吸收,并由导流层快速地扩散开;
12.成品收卷。
本实施例还以粘胶纤维和麻纤维为例,给出了从粘胶纤维和麻纤维的混合纤维制备水刺复合面料的整个过程,具体步骤如实施例2所示。
实施例2
本实施例通过70%的粘胶纤维和30%的麻纤维制备水刺复合面料的工艺流程包括:
1.备料:将70%的粘胶纤维和30%的麻纤维混合均匀得到混合纤维,以备使用;
2.梳理:包括开松和梳理两个部分,即将混合纤维开松成单纤维状态,便于用梳棉机将其梳顺;
3.铺网:采用垂直铺网的方式铺制混合纤维网层;
4.预湿:对混合纤维网层进行润湿,并以热风无纺布作为结构层,同步退卷提前准备好的热风无纺布,使得混合纤维网层与热风无纺布有一个初步的结合;
5.水刺:利用水刺机的高压水流对混合纤维网层和热风无纺布进行正面及反面水刺,使得混合纤维相互缠结,同时,混合纤维也与热风无纺布进行了相互缠结,形成面层和结构层水刺复合的水刺复合面层。上述水刺工艺不仅加固了混合纤维抱合粘结的张力,也加固了纤维网层和热风无纺布之间结合的紧密度,最终增强了水刺复合面层的强力;
6.轧干:将面层与结构层复合布面的水分挤出,便于进行高温水洗工序;
7.高温水洗:采用80-100℃的高温水对水刺复合面层进行清洗,除去布面上残留的杂质,如棉籽壳、泥浆等,同时达到高温灭菌的目的,使得水刺复合面层布面的初始污染菌得到有效控制;
8.拒水整理:将高温水洗后的复合面层进行拒水整理,使得复合面层具有拒水特性;
9.烘干;
10.冲孔:用冲孔设备对烘干后的水刺复合面层进行冲孔,孔型是圆形,孔型直径为1mm-5mm。对水刺复合面层进行冲孔后,由于水刺复合面层的布面是拒水的,液体可以通过网孔穿透布面,而不会有液体存留在水刺复合面层,水刺复合面料的面层的干爽性可以得到保证;
11.复合:以亲水热风无纺布作为导流层,将导流层与已经和面层水刺复合的结构层进行超声波复合,以得到水刺复合面层和导流层复合的水刺复合面料,其中亲水热风无纺布为表现为亲水,液体通过水刺复合面层的网孔时,能够被导流层快速吸收,并由导流层快速地扩散开;
12.成品收卷。
本实施例还提供了一种卫生制品,如图2所示,包括表层4、吸收层5和底膜6,表层4采用上述实施例1或实施例2制备的水刺复合面料。在保持表层4干爽的同时,还能够通过表层4的网孔2和导流层3增加表层4的吸液速度,同时导流层3也能避免卫生制品的吸收层5的胶体通过网孔2渗漏至表层4的风险。
以上应用了具体个例对本申请进行阐述,只是用于帮助理解本发明,并不用以限制本申请。对于本申请所属技术领域的技术人员,依据本申请的思想,还可以做出若干简单推演、变形或替换。
Claims (10)
1.一种水刺复合面料的制备方法,其特征在于,采用预湿后的面层和结构层进行水刺复合得到复合面层,对所述复合面层进行拒水处理得到拒水性复合面层,采用冲孔工艺在拒水性复合面层上制作网孔,将结构层和导流层复合,以使导流层覆盖所述拒水性复合面层上的网孔,从而得到所述水刺复合面料。
2.根据权利要求1所述的制备方法,其特征在于,所述面层的克重为8-40g/m2,所述结构层的克重为6-25g/m2,所述导流层的克重为12-30g/m2;
优选地,所述面层采用纤维网层,所述纤维网层包括至少一层纤维网;
优选地,所述结构层采用热熔性无纺布,更优选为热风无纺布;
优选地,所述导流层采用亲水热风无纺布。
3.根据权利要求2所述的制备方法,其特征在于,所述纤维网层的制备过程包括:
备料:将纤维备好,以备使用;
梳理:采用梳棉机将所述纤维梳顺;
铺网:采用垂直铺网或交叉铺网的方式将所述纤维铺成纤维网层;
优选地,采用垂直铺网的方式将所述纤维制成纤维网层。
4.根据权利要求1所述的制备方法,其特征在于,所述对所述复合面层进行拒水处理得到拒水性复合面层具体包括:
对所述复合面层进行轧干和高温水洗,对经高温水洗的复合面层进行拒水处理,对经拒水处理的复合面层进行烘干,得到拒水性复合面层;
优选地,采用80-100℃的高温水对所述复合面层进行高温水洗。
5.根据权利要求1所述的制备方法,其特征在于,所述网孔为圆形网孔、椭圆形网孔或方形网孔中的任意一种;
优选地,所述网孔为圆形网孔;
优选地,所述圆形网孔的孔径为1-5mm。
6.根据权利要求1所述的制备方法,其特征在于,所述将与纤维网层复合的结构层和导流层复合的方式包括超声波复合或热复合中的任意一种;
优选地,所述将与纤维网层复合的结构层和导流层复合的方式为超声波复合。
7.一种根据权利要求1-7任一项所述的制备方法制备的水刺复合面料。
8.一种根据权利要求7所述的水刺复合面料的应用。
9.一种采用权利要求7所述的水刺复合面料作为表层的卫生制品。
10.根据权利要求9所述的卫生制品,其特征在于,还包括吸收层和底膜,所述表层覆盖于吸收层的一侧,以使所述复合面料的导流层和所述吸收层相接触,所述底膜覆盖于所述吸收层远离所述复合面料的拒水性复合面层的一侧。
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CN116492145A (zh) * | 2023-04-28 | 2023-07-28 | 江苏宝姿实业有限公司 | 一种抑菌除异味的卫生巾及其制备工艺 |
CN116492145B (zh) * | 2023-04-28 | 2023-09-26 | 江苏宝姿实业有限公司 | 一种抑菌除异味的卫生巾及其制备工艺 |
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