CN117137730A - 新型卫生用品及其制备方法 - Google Patents
新型卫生用品及其制备方法 Download PDFInfo
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Abstract
本发明涉及一种新型卫生用品及其制备方法,新型卫生用品自上而下顺次由面层、第一吸水芯体、第二吸水芯体、底膜组成,所述第一吸水芯体的织物强度大于第二吸水芯体的织物强度,第一吸水芯体的饱和吸水率小于第二吸水芯体的饱和吸水率,面层、第一吸水芯体、第二吸水芯体、底膜之间通过热熔胶粘接,面层作为皮肤接触面。本发明通过设置第一吸水芯体和第二吸水芯体双层芯体,使卫生用品在使用过程中不易变形,能快速渗透吸收,充分锁住水分,吸水性强,且液体难以渗回面层,保持了面层的干爽度,舒适度高。
Description
技术领域
本发明属于卫生用品技术领域,特别涉及一种新型卫生用品及其制备方法。
背景技术
随着人们生活水平的提高,人们对健康和生活品质的要求越来越高,对卫生巾和纸尿裤这些卫生用品的要求也日益增多。传统的卫生巾/纸尿裤也存在着诸多问题,例如吸收性差、容易漏、不便于携带等等。卫生巾/纸尿裤一般分为面层、吸收芯体和底层,其中,吸收芯体的性能是卫生巾产品质量的关键。现有的的吸收芯体由木浆与高分子吸水颗粒组成,或由卫生纸/无纺布/无尘纸与高分子吸水颗粒与卫生纸/无纺布/无尘纸组成,吸水芯体为单薄结构,其吸水性与整体强度具有一定的局限性,都较为薄弱,会导致渗液、变形等,给使用者带来了不便。
中国专利CN206007478U公开了一种卫生巾,包括面层、底层和吸收芯,提供的吸收芯体,包括导液层、锁液层和拒液层,所述导液层、所述锁液层和所述拒液层依次层叠设置;所述导液层与所述锁液层粘合连接,所述锁液层与所述拒液层粘合连接。吸收芯体通过导液层增强液体的吸收能力和扩散能力,使经血通过导液层快速进入锁液层,避免经血外溢;通过设置锁液层,吸收和储存经血,避免经血渗漏;通过拒液层能一定程度的防止经血渗漏,避免弄脏衣物。但其吸收芯仍然采用的是传统的无尘纸与高分子吸水颗粒与无尘纸组成结构,整体结构较为单薄,在吸收能力上仍存在一定的局限性。
中国专利CN209154227U公开了一种卫生巾,包括外侧保护层和吸液单元,外侧保护层的内侧面具有定位区域以及折叠区域,吸液单元包括防护层、芯体、导流层,防护层贴合在定位区域内,防护层设置有胶粘层,芯体设置在防护层的背离外侧保护层的一侧,芯体包括主要由木浆和吸水树脂混合制成的凸起部、位于凸起部两侧的吸水层,吸水层包括两个表层以及位于两个表层之间的吸水树脂层,吸水层上设置有导流部,导流部将吸水层分隔形成外侧吸液区域和内侧吸液区域,凸起部位于内侧吸液区域,导流层贴合在吸水层远离防护层的一侧,导流层用于分散位于其上的液体并将液体输送至芯体处由芯体吸收;折叠区域覆盖在导流层外。其具有吸液效果好,但其吸液单元结构较为脆弱容易发生破裂变形。
发明内容
本发明所要解决的技术问题是提供一种新型卫生用品及其制备方法,使卫生用品在使用过程中不易变形,能快速渗透吸收,充分锁住水分,吸水性强,且液体难以渗回面层,保持了面层的干爽度,舒适度高。
本发明提供了一种新型卫生用品及其制备方法,新型卫生用品自上而下顺次由面层、第一吸水芯体、第二吸水芯体、底膜组成,所述第一吸水芯体的织物强度大于第二吸水芯体的织物强度,第一吸水芯体的饱和吸水率小于第二吸水芯体的饱和吸水率,面层、第一吸水芯体、第二吸水芯体、底膜之间通过热熔胶粘接。面层作为皮肤接触面。
织物强度为织物的力学性能,是织物在各种机械外力作用下所表现出的性能,它是织物的基本服用性能之一,织物强度越大其耐久性和坚牢度越强,通过测试织物的拉伸断裂、顶裂、撕裂性来反映这一性能,因此第一吸水芯体较第二吸水芯体具有更强的耐久性和坚牢度,能够对整体起到支撑的作用。
饱和吸水率反映该吸水芯体的最大吸收量,因此第一吸水芯体的吸水量小于第二吸水芯体的吸水量。
优选地,所述第一吸水芯体由上而下顺次包括芯体面层、第一连接层、第一吸水层、增强层、第二吸水层、第二连接层和芯体底层,所述第一吸水层、第二吸水层均由高分子吸水树脂组成,所述增强层与第二连接层中都均匀渗有高分子吸水树脂,所述第一连接层、第二连接层分别由含有粉状热熔胶或ES纤维的木浆纤维组成,可以在加热后起到整体粘接作用,不用再另外通过胶粘剂进行粘接,不会影响吸水性能,另外,木浆还可以起到增加吸水速度的作用;增强层由长纤维膨松无纺布组成,可以起到锁定高分子吸水颗粒、以及增加拉力的作用,使其制造得到的卫生巾、尿裤、尿布等不会断裂。
优选地,所述第二吸水芯体由上而下顺次包括织物导流层、吸收层和织物阻隔层,还包括第一高分子吸水树脂层和第二高分子吸水树脂层,所述第一高分子吸水树脂层位于织物导流层与吸收层之间,所述第二高分子吸水树脂层位于吸收层与织物阻隔层之间,吸收层内均匀渗有高分子吸水树脂;对高分子吸水树脂的约束减小,高分子吸水颗粒膨胀系数高,吸水量大,可以快速完全的将水分吸收。
织物导流层可以有效吸入液体,吸收层可以使液体快速往底层方向渗透,吸收层中的高分子吸水树脂层能有效吸收存储液体,织物阻隔层可以避免液体渗出,将液体锁在吸收层内。
优选地,所述底膜采用PE膜,PE膜为薄膜材质,具有优良的防水性,从而隔绝卫生巾底部渗液。
优选地,所述面层采用热风无纺布。
优选地,所述芯体面层采用无尘纸,芯体底层采用长纤维无纺布。
优选地,所述长纤维膨松无纺布的纤维长度为52~64mm,纤维长度对于无纺布的强度有很大的影响,在一定范围内,无纺布的拉伸性能会随着纤维长度的增加而增加,但超过一定长度时拉伸性能会下降。
优选地,所述吸收层与织物导流层、织物阻隔层之间均通过胶粘剂粘接。
优选地,所述吸收层采用膨松无纺布,织物导流层和织物阻隔层采用卫生纸或无纺布或无尘纸。
一种新型卫生用品的制备方法,包括如下步骤:
(1)将底膜平铺在工作台上,在底膜上方喷洒热熔胶;
(2)在底膜上方铺设第二吸水芯体,在第二吸水芯体上方喷洒热熔胶;
(3)在第二吸水芯体上方铺设第一吸水芯体,在第一吸水芯体上方喷洒热熔胶;
(4)在第一吸水芯体上方铺设面层,使底膜、第二吸水芯体、第一吸水芯体、面层由自下而上的依次排列;
(5)进行热压处理,获得新型卫生用品。
本发明所述的新型卫生用品包括卫生巾和纸尿裤;纸尿裤又包括成人纸尿裤和儿童纸尿裤等。
本发明具有以下技术效果:
1、通过第一吸水芯体的存在,使整个卫生用品的化纤含量增加,进而提高了卫生用品的整体强度,使其不易变形,能约束整体的高分子吸水树脂颗粒,使其不易遇水膨胀,避免其松散脱落,保证了卫生用品的完整性;
2、在第二吸水芯体中由于化纤含量低,对高分子吸水树脂的约束减小,高分子吸水颗粒膨胀系数高,吸水量大,可以快速完全的将水分吸收;
3、通过设置第一吸水芯体和第二吸水芯体双层芯体,在液体向下渗透的过程中能够快速的将其吸收,锁水能力强,能充分锁住水分,大量的液体被第二吸水芯体吸收,即使在第二吸水芯体吸收饱和的状态下,多余液体也会阻挡在第一吸水芯体内被吸收,难以反渗回面层,充分保持面层的干爽,提高舒适度。
附图说明
图1是新型卫生用品的结构示意图;
图2是第一吸水芯体的结构示意图;
图3是实施例1中第二吸水芯体的结构示意图;
图4是实施例2中第二吸水芯体的结构示意图;
图5是新型卫生用品制备方法过程示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,以下结合附图对本发明进行具体阐述。
实施例1
参照图1、图2、图3,一种新型卫生用品,自上而下顺次由面层1、第一吸水芯体2、第二吸水芯体3、底膜4组成,面层1、第一吸水芯体2、第二吸水芯体3、底膜4之间通过热熔胶粘接,面层1作为皮肤接触面;
所述第一吸水芯体2的织物强度大于第二吸水芯体3的织物强度,织物强度为织物的力学性能,是织物在各种机械外力作用下所表现出的性能,它是织物的基本服用性能之一,织物强度越大其耐久性和坚牢度越强,通过测试织物的拉伸断裂、顶裂、撕裂性来反映这一性能,因此第一吸水芯体2较第二吸水芯体3具有更强的耐久性和坚牢度,能够对整体起到支撑的作用。
所述第一吸水芯体2的饱和吸水率小于第二吸水芯体3的饱和吸水率,饱和吸水率是最大程度吸收量,因此第一吸水芯体2的吸水量小于第二吸水芯体3的吸水量。
所述第一吸水芯体2由上而下顺次包括芯体面层21、第一连接层22、第一吸水层23、增强层24、第二吸水层25、第二连接层26和芯体底层27,所述第一吸水层23、第二吸水层25均由高分子吸水树脂组成,所述增强层24与第二连接层26中都均匀渗有高分子吸水树脂,所述第一连接层22、第二连接层26分别由含有粉状热熔胶或ES纤维的木浆纤维组成,可以在加热后起到整体粘接作用,不用再另外通过胶粘剂进行粘接,不会影响吸水性能,另外,木浆还可以起到增加吸水速度的作用;增强层24由长纤维膨松无纺布组成,可以起到锁定高分子吸水颗粒、以及增加拉力的作用,使其制造得到的卫生巾、尿裤、尿布等不会断裂。
所述第二吸水芯体3由上而下顺次包括织物导流层31、吸收层33和织物阻隔层35,吸收层33内均匀渗有高分子吸水树脂。第二吸水芯体3对高分子吸水树脂的约束减小,高分子吸水颗粒膨胀系数高,吸水量大,可以快速完全的将水分吸收。
织物导流层31可以有效吸入液体,吸收层33可以使液体快速往底层方向渗透,吸收层33中的高分子吸水树脂层能有效吸收存储液体,织物阻隔层35可以避免液体渗出,将液体锁在吸收层内。
所述底膜4采用PE膜,PE膜为薄膜材质,具有优良的防水性,从而隔绝卫生巾底部渗液。
所述面层1采用热风无纺布。
所述芯体面层21采用无尘纸,芯体底层27采用长纤维无纺布。
所述长纤维膨松无纺布的纤维长度为52~64mm,纤维长度对于无纺布的强度有很大的影响,在一定范围内,无纺布的拉伸性能会随着纤维长度的增加而增加,但超过一定长度时拉伸性能会下降。
所述吸收层33与织物导流层31、织物阻隔层35之间均通过胶粘剂粘接。
所述吸收层33采用膨松无纺布。
所述的新型卫生用品包括卫生巾和纸尿裤,纸尿裤又包括成人纸尿裤和儿童纸尿裤等。
参照图1、图5,一种新型卫生用品的制备方法,包括如下步骤:
(1)将底膜4平铺在工作台上,在底膜4上方喷洒热熔胶;
(2)在底膜4上方铺设第二芯体3,在第二芯体3上方喷洒热熔胶;
(3)在第二芯体3上方铺设第一芯体2,在第一芯体2上方喷洒热熔胶;
(4)在第一芯体2上方铺设面层1,使底膜4、第二吸水芯体3、第一吸水芯体2、面层1由自下而上的依次排列;
(5)进行热压处理,获得新型卫生用品;所述新型卫生用品包括卫生巾和纸尿裤。
实施例2
参照图4,与实施例1不同的是,本实施例对第二吸水芯体3的结构作了改进,增设了第一高分子吸水树脂层32和第二高分子吸水树脂层34,所述第一高分子吸水树脂层32位于织物导流层31与吸收层33之间,所述第二高分子吸水树脂层34位于吸收层33与织物阻隔层35之间。由于吸收层33内本身即均匀布设有高分子吸水树脂,再加之第一高分子吸水树脂层32和第二高分子吸水树脂层34,增强了第二吸水芯体3的吸水能力,饱和吸水量更大,可以快速完全的将水分吸收。
以上所述的实施例仅是对本发明的优选方式进行描述,并非对本发明的范围进行限定,在不脱离本发明设计精神的前提下,本领域普通技术人员对本发明的技术方案做出的各种变形和改进,均应落入本发明权利要求书确定的保护范围内。
Claims (10)
1.一种新型卫生用品,其特征在于,自上而下顺次由面层、第一吸水芯体、第二吸水芯体、底膜组成,所述第一吸水芯体的织物强度大于第二吸水芯体的织物强度,第一吸水芯体的饱和吸水率小于第二吸水芯体的饱和吸水率,面层、第一吸水芯体、第二吸水芯体、底膜之间通过热熔胶粘接。
2.根据权利要求1所述的新型卫生用品,其特征在于:所述第一吸水芯体由上而下顺次包括芯体面层、第一连接层、第一吸水层、增强层、第二吸水层、第二连接层和芯体底层,所述第一吸水层、第二吸水层均由高分子吸水树脂组成,所述第二连接层与增强层中都均匀渗有高分子吸水树脂,所述第一连接层、第二连接层分别由含有粉状热熔胶或ES纤维的木浆纤维组成,所述增强层由长纤维膨松无纺布组成。
3.根据权利要求1所述的新型卫生用品,其特征在于:所述第二吸水芯体由上而下顺次包括织物导流层、吸收层和织物阻隔层,吸收层内均匀渗有高分子吸水树脂。
4.根据权利要求3所述的新型卫生用品,其特征在于:所述第二吸水芯体还包括第一高分子吸水树脂层和第二高分子吸水树脂层,所述第一高分子吸水树脂层位于织物导流层与吸收层之间,所述第二高分子吸水树脂层位于吸收层与织物阻隔层之间。
5.根据权利要求1所述的新型卫生用品,其特征在于:所述底膜采用PE膜。
6.根据权利要求1所述的新型卫生用品,其特征在于:所述面层采用热风无纺布。
7.根据权利要求2所述的新型卫生用品,其特征在于:所述芯体面层采用无尘纸,芯体底层采用长纤维无纺布,所述长纤维膨松无纺布的纤维长度为52~64mm。
8.根据权利要求3所述的新型卫生用品,其特征在于:所述吸收层与织物导流层、织物阻隔层之间均通过胶粘剂粘接。
9.根据权利要求3或8所述的新型卫生用品,其特征在于:所述吸收层采用膨松无纺布,织物导流层和织物阻隔层采用卫生纸或无纺布或无尘纸。
10.一种新型卫生用品的制备方法,包括如下步骤:
(1)将底膜平铺在工作台上,在底膜上方喷洒热熔胶;
(2)在底膜上方铺设第二吸水芯体,在第二吸水芯体上方喷洒热熔胶;
(3)在第二吸水芯体上方铺设第一吸水芯体,在第一吸水芯体上方喷洒热熔胶;
(4)在第一吸水芯体上方铺设面层;
(5)进行热压处理,获得新型卫生用品。
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