CN106974773A - 一次性卫生用品的复合芯体及其成型方法 - Google Patents

一次性卫生用品的复合芯体及其成型方法 Download PDF

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CN106974773A
CN106974773A CN201710271358.1A CN201710271358A CN106974773A CN 106974773 A CN106974773 A CN 106974773A CN 201710271358 A CN201710271358 A CN 201710271358A CN 106974773 A CN106974773 A CN 106974773A
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molecular resin
hydroscopic high
upper strata
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韦文颐
黄奕赤
黄剑波
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Quanzhou Bai Bai Bai Health Products Co Ltd
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Abstract

本发明涉及卫生用品生产制造技术领域,提供一种透气性强、超薄吸收效果好,防反渗、侧漏、断裂、起坨的一次性卫生用品的复合芯体及其成型方法,由上至下依次包括上层卫生纸层、上层高分子吸水树脂层、热风蓬松不织布层、下层高分子吸水树脂层以及下层卫生纸层,所述上层卫生纸层与上层高分子吸水树脂层通过湿强热熔胶胶合,下层高分子吸水树脂层与下层卫生纸层通过湿强热熔胶胶合在一起,所述上层高分子吸水树脂层的密度比下层高分子吸水树脂层的密度小。

Description

一次性卫生用品的复合芯体及其成型方法
技术领域
本发明公开一次性卫生用品的复合芯体及其成型方法,属于卫生用品生产制造技术领域。
背景技术
一次性卫生用品如纸尿裤与卫生巾其结构已为公知,通常由透液性面层、不透液性底层、以及设于透液性面层与不透液性底层之间的复合芯体组成,所述为了增加液体在一次性卫生用品中的扩散速度在透液性面层与吸收体之间设有导流层无纺布,所述复合芯体大体分为:绒毛浆加吸水粒子、湿强纸加吸水粒子和用无尘纸加吸水粒子做复合芯体的,也有用绒毛浆再加湿强纸复合或绒毛浆加再加无尘纸复合的所谓半芯体。但是,这些都存在不易吸收、反渗、侧漏、断裂、起坨的问题。特别是在生产过程中极易造成吸水粒子流漏和浮在表面的现象,即,浪费资源又容易造成环境污染和消费者的不适。
发明内容
针对上述问题,本发明提出一种透气性强、超薄吸收效果好,防反渗、侧漏、断裂、起坨的一次性卫生用品的复合芯体及其成型方法。
为解决此技术问题,本发明采取以下方案:一次性卫生用品的复合芯体,由上至下依次包括上层卫生纸层、上层高分子吸水树脂层、热风蓬松不织布层、下层高分子吸水树脂层以及下层卫生纸层,所述上层卫生纸层与上层高分子吸水树脂层通过湿强热熔胶胶合,下层高分子吸水树脂层与下层卫生纸层通过湿强热熔胶胶合在一起,所述上层高分子吸水树脂层的粒度比下层高分子吸水树脂层的粒度大。
进一步改进的是:所述上层卫生纸层与下层卫生纸层为全木浆纸或无尘纸。
进一步改进的是:所述上层卫生纸层的克重为18g~26g。
进一步改进的是:热风蓬松不织布层的克重为45~60g。
基于同一发明构思本发明还提供一种一次性卫生用品的复合芯体的成型方法,包括如下步骤:
1)、先将湿强热熔胶装入溶胶缸,以缸体容积的一半为宜,然后进行初加温45~55℃,10分钟后;再加物料湿强热熔胶至缸体容积的三分之二,进行预加温85~95℃,直至达到要求的理想温度126℃~156℃,同时,对热熔胶的输送喉管,出胶口的胶枪进行加温,对加热系统的仪表进行读数复核与校准;
2)、将上层卫生纸安装在设备的放卷轴上固定好;将热风蓬松不织布安装在设备的放卷轴上固定好;将物料湿强热熔胶加热准备好;将高分子吸水树脂加入设备上的下料分布器的下料仓准备好;调校好设备上的分切刀具格局;调校好设备各部位的放卷张力,调校好设备收卷压力;
3)、先将上层卫生纸由第一料架轴开松放卷,并输送至湿强热熔胶的第一排喷胶枪口下,进行第一次表面喷胶,上层卫生纸喷胶后,经输送托辊上方穿过;
4)、将热风蓬松不织布由料架开松放卷,并输送至装有高分子吸水树脂的料仓下方,到位后经第一道分布器在热风蓬松不织布的正面导流添加一层高分子吸水树脂层,由此在热风蓬松不织布上表面形成上层高分子吸水树脂层;
5)、将上层高分子吸水树脂层与上层卫生纸已喷胶的一面进行胶合式复合;
6)、上述步骤5)复合后的芯体再经输送过渡托辊输送至装有高分子吸水树脂的第二分布器的料仓前,到位后在上述步骤5)热风蓬松不织布的反面即下表面再导流添加一层高分子吸水树脂层,从而在热风蓬松不织布的反面复合一层下层高分子吸水树脂层,导流添加高分子吸水树脂时,上层高分子吸水树脂层的粒度比下层高分子吸水树脂层的粒度大;
7)、将第二料架上的下层卫生纸输送至湿强热熔胶的喷胶枪口下,并对第二料架上的下层卫生纸进行表面喷胶,喷胶后的下层卫生纸经输送过渡托辊输送至第二道分布器所述高分子吸水树脂料仓的下方,与上述下层高分子吸水树脂层胶合复合;
8)、将胶合复合完成的物料,经由输送托辊输送至分切工位;
9)、由分切设备进行需求分切;
10)、将复卷机分切工位分切后输送过来的物料,在复卷设备上进行调压收卷,至此复合工艺完成。
进一步改进的是:所述上层卫生纸层与下层卫生纸层为全木浆纸或无尘纸。
进一步改进的是:所述初加温的温度为50℃,10分钟后;再加物料湿强热熔胶至缸体容积的三分之二,进行预加温90℃,直至达到要求的理想温度135℃。
通过采用前述技术方案,本发明的有益效果是:本发明复合芯体上层高分子吸水树脂层的粒度比下层高分子吸水树脂层的粒度大,因此,热风蓬松不织布上表面的高分子吸水树脂的密度比热风蓬松不织布上表面下表面的下层高分子吸水树脂层的密度小,因此液体到上层高分子吸水树脂层时,由于其密度小吸收速度就特别快,可以快速导流至下层高分子吸水树脂层,提高吸收芯体的利用率,液体到下层高分子吸水树脂层时,由于下层高分子吸水树脂层的密度大,吸液后会快速达到锁液的效果,从而形成反向拒水的效果,达到上层快速吸水,下层快速锁水防止吸收体反渗的功效,从而避免复合芯体吸收慢导致侧漏、断裂、起坨的问题,本发明复合方法,可避免在生产过程中吸水粒子流漏和浮在表面的现象,即;浪费资源又容易造成环境污染和消费者的不适。
附图说明
图1是本发明复合芯体结构示意图。
具体实施方式
现结合附图和具体实施例对本发明进一步说明。
参考图1,本实施例公开一次性卫生用品的复合芯体,由上至下依次包括上层卫生纸层1、上层高分子吸水树脂层2、热风蓬松不织布层3、下层高分子吸水树脂层4以及下层卫生纸层5,所述上层卫生纸层1与上层高分子吸水树脂2层通过湿强热熔胶6胶合,下层高分子吸水树脂层4与下层卫生纸层5通过湿强热熔胶6胶合在一起,所述上层高分子吸水树脂层2的粒度比下层高分子吸水树脂层的粒度大。所述上层卫生纸层与下层卫生纸层为全木浆纸,所述上层卫生纸层的克重为18g~26g,蓬松不织布层的克重为45~60g。
上述一次性卫生用品的复合芯体的成型方法,包括如下步骤:
1)、先将湿强热熔胶装入溶胶缸,以缸体容积的一半为宜,然后进行初加温50℃,10分钟后;再加物料湿强热熔胶至缸体容积的三分之二,进行预加温90℃,直至达到要求的理想温度135℃,同时,对热熔胶的输送喉管,出胶口的胶枪进行加温,对加热系统的仪表进行读数复核与校准;
2)、将上层卫生纸1安装在设备的放卷轴上固定好;将热风蓬松不织布3安装在设备的放卷轴上固定好;将物料湿强热熔胶6加热准备好;高分子吸水树脂加入设备上的下料分布器的下料仓准备好;调校好设备上的分切刀具格局;调校好设备各部位的放卷张力,调校好设备收卷压力;
3)、先将上层卫生纸1由第一料架轴开松放卷,并输送至湿强热熔胶6的第一排喷胶枪口下,进行第一次表面喷胶,上层卫生纸1喷胶后,经输送托辊上方穿过;
4)、将热风蓬松不织布3由料架开松放卷,并输送至装有粒度较大的高分子吸水树脂的料仓下方,到位后经第一道分布器在热风蓬松不织布2的正面导流添加一层高分子吸水树脂层,由此在热风蓬松不织布上表面形成上层高分子吸水树脂层2;
5)、将上层高分子吸水树脂层2与上层卫生纸1已喷胶的一面进行胶合式复合;
6)、上述步骤5)复合后的芯体再经输送过渡托辊输送至装有粒度较小高分子吸水树脂的第二分布器的料仓前,到位后在上述步骤5)热风蓬松不织布3的反面即下表面再导流添加一层高分子吸水树脂层,从而在热风蓬松不织布3的反面复合一层下层高分子吸水树脂层4,导流添加高分子吸水树脂时,上层高分子吸水树脂层的粒度比下层高分子吸水树脂层的粒度大;
7)、将第二料架上的下层卫生纸5输送至湿强热熔胶6的喷胶枪口下,并对第二料架上的下层卫生纸5进行表面喷胶,喷胶后的下层卫生纸5经输送过渡托辊输送至第二道分布器所述高分子吸水树脂料仓的下方,与上述下层高分子吸水树脂层4胶合复合;
8)、将胶合复合完成的物料,经由输送托辊输送至分切工位;
9)、由分切设备进行需求分切;
10)、将复卷机分切工位分切后输送过来的物料,在复卷设备上进行调压收卷,至此复合工艺完成。
其于前述技术方案:所述上层卫生纸层与下层卫生纸层也可以为无尘纸。
所述初加温的温度为只要在45~50℃之间,所述预加温的温度只要在85~95℃,理想温度只要在126℃~156℃,均可以实现本发明目的。
本发明复合芯体上层高分子吸水树脂层的粒度比下层高分子吸水树脂层的粒度大,因此,热风蓬松不织布上表面的高分子吸水树脂的密度比热风蓬松不织布上表面下表面的下层高分子吸水树脂层的密度小,因此液体到上层高分子吸水树脂层时,由于其密度小吸收速度就特别快,可以快速导流至下层高分子吸水树脂层,提高吸收芯体的利用率,液体到下层高分子吸水树脂层时,由于下层高分子吸水树脂层的密度大,吸液后会快速达到锁液的效果,从而形成反向拒水的效果,达到上层快速吸水,下层快速锁水防止吸收体反渗的功效,从而避免复合芯体吸收慢导致侧漏、断裂、起坨的问题,本发明复合方法,可避免在生产过程中吸水粒子流漏和浮在表面的现象,即;浪费资源又容易造成环境污染和消费者的不适。
以上所记载,仅为利用本创作技术内容的实施例,任何熟悉本项技艺者运用本创作所做的修饰、变化,皆属本创作主张的专利范围,而不限于实施例所揭示者。

Claims (7)

1.一次性卫生用品的复合芯体,其特征在于:由上至下依次包括上层卫生纸层、上层高分子吸水树脂层、热风蓬松不织布层、下层高分子吸水树脂层以及下层卫生纸层,所述上层卫生纸层与上层高分子吸水树脂层通过湿强热熔胶胶合,下层高分子吸水树脂层与下层卫生纸层通过湿强热熔胶胶合在一起,所述上层高分子吸水树脂层的粒度比下层高分子吸水树脂层的粒度大。
2.根据权利要求1或2所述的卫生用品的复合芯体,其特征在于:所述上层卫生纸层与下层卫生纸层为全木浆纸或无尘纸。
3.根据权利要求1所述的卫生用品的复合芯体,其特征在于:所述上层卫生纸层的克重为18g~26g。
4.根据权利要求1所述的卫生用品的复合芯体,其特征在于:热风蓬松不织布层的克重为45~60g。
5.一次性卫生用品的复合芯体的成型方法,其特征在于:包括如下步骤:
1)、先将湿强热熔胶装入溶胶缸,以缸体容积的一半为宜,然后进行初加温45~55℃,10分钟后;再加物料湿强热熔胶至缸体容积的三分之二,进行预加温85~95℃,直至达到要求的理想温度126℃~156℃,同时,对热熔胶的输送喉管,出胶口的胶枪进行加温,对加热系统的仪表进行读数复核与校准;
2)、将上层卫生纸安装在设备的放卷轴上固定好;将热风蓬松不织布安装在设备的放卷轴上固定好;将物料湿强热熔胶加热准备好;将高分子吸水树脂加入设备上的下料分布器的下料仓准备好;调校好设备上的分切刀具格局;调校好设备各部位的放卷张力,调校好设备收卷压力;
3)、先将上层卫生纸由第一料架轴开松放卷,并输送至湿强热熔胶的第一排喷胶枪口下,进行第一次表面喷胶,上层卫生纸喷胶后,经输送托辊上方穿过;
4)、将热风蓬松不织布由料架开松放卷,并输送至装有高分子吸水树脂的料仓下方,到位后经第一道分布器在热风蓬松不织布的正面导流添加一层高分子吸水树脂层,由此在热风蓬松不织布上表面形成上层高分子吸水树脂层;
5)、将上层高分子吸水树脂层与上层卫生纸已喷胶的一面进行胶合式复合;
6)、上述步骤5)复合后的芯体再经输送过渡托辊输送至装有高分子吸水树脂的第二分布器的料仓前,到位后在上述步骤5)热风蓬松不织布的反面即下表面再导流添加一层高分子吸水树脂层,从而在热风蓬松不织布的反面复合一层下层高分子吸水树脂层,导流添加高分子吸水树脂时,所述上层高分子吸水树脂层的粒度比下层高分子吸水树脂层的粒度大;
7)、将第二料架上的下层卫生纸输送至湿强热熔胶的喷胶枪口下,并对第二料架上的下层卫生纸进行表面喷胶,喷胶后的下层卫生纸经输送过渡托辊输送至第二道分布器所述高分子吸水树脂料仓的下方,与上述下层高分子吸水树脂层胶合复合;
8)、将胶合复合完成的物料,经由输送托辊输送至分切工位;
9)、由分切设备进行需求分切;
10)、将复卷机分切工位分切后输送过来的物料,在复卷设备上进行调压收卷,至此复合工艺完成。
6.根据权利要求1或2所述的一次性卫生用品的复合芯体的成型方法,其特征在于:所述上层卫生纸层与下层卫生纸层为全木浆纸或无尘纸。
7.根据权利要求1或2所述的一次性卫生用品的复合芯体的成型方法,所述初加温的温度为50℃,10分钟后;再加物料湿强热熔胶至缸体容积的三分之二,进行预加温90℃,直至达到要求的理想温度135℃。
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