CN110547909B - 一种改进型复合芯体的制备方法 - Google Patents

一种改进型复合芯体的制备方法 Download PDF

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CN110547909B
CN110547909B CN201910911052.7A CN201910911052A CN110547909B CN 110547909 B CN110547909 B CN 110547909B CN 201910911052 A CN201910911052 A CN 201910911052A CN 110547909 B CN110547909 B CN 110547909B
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郑佳明
谯志勇
庄剑波
张程娟
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CHIAUS (FUJIAN) INDUSTRIAL DEVELOPMENT CO LTD
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Abstract

本发明涉及一次性卫生用品领域,尤其涉及一种改进型复合芯体的制备方法,它主要解决了现有技术中复合芯体的加工工艺繁琐、加工成本高的问题,包括以下步骤:a、制备无纺布;b、在步骤a的无纺布的上添加高分子吸水树脂材料;c、制备膨松无纺布,并对膨松无纺布的上表面喷涂高分子吸水树脂材料;d、将膨松无纺布的下表面复合在步骤b的制品的上表面上;e、将步骤d的制品进行裁切,形成单个宽度尺寸较小的卷状材料;f、将步骤d的制品以连续的方式进行输送;g、制备底层无纺布,再将其与膨松无纺布的上表面复合;h、将步骤g中的底层无纺布的横向两侧中未与膨松无纺布粘合的区域向下、向内弯折包覆,使其粘附在无纺布的下表面的横向两侧。

Description

一种改进型复合芯体的制备方法
技术领域
本发明涉及一次性卫生用品领域,尤其涉及一种改进型复合芯体的制备方法。
背景技术
吸收芯体广泛用于护理的吸收用品中。传统的吸收芯体是由无纺布包覆于木浆或者绒毛浆形成块状结构,为了进一步增加芯体的吸收性能,通常在木浆或者绒毛浆内混合高分子吸水树脂材料,但是这样做出来的吸收芯体不仅在使用过程中容易出现起坨、断裂的情况,并且该吸收芯体的结构常常很厚,会降低使用者的舒适性。
为了解决吸收芯体的起坨、断裂以及厚度问题,现有的吸收芯体通常是设置成五层结构的吸收芯体后再复合上一层无纺布,参考图1,其结构是在中层无纺布1’的上、下表面分别设置有上层高分子吸水树脂层2’和下层高分子吸收树脂层3’,并且在上层高分子吸水树脂层2’的上表面粘附有上层无纺布 4’,在下层高分子吸水树脂层3’的下表面粘附有下层无纺布5’形成五层结构的吸收芯体,在吸收芯体的下表面粘附一层无纺布层6’,其横向两边向上弯折包覆在吸收芯体的横向两侧,防止吸收芯体内的高分子吸水树脂泄露;其大大降低了吸收芯体的厚度,并且防止起坨、断裂的现象发生;参考图2,该结构的吸收芯体在实际生产过程中是:将宽度尺寸较大的下层无纺布5’连续输送,在其上表面上喷胶并且喷洒高分子吸水树脂形成下层高分子吸水树脂层3’,再粘附中层无纺布1’,接着在中层无纺布1’的上表面喷胶并且喷洒高分子吸水树脂形成上层高分子吸水树脂层2’,最后粘附上层无纺布4’,并对其进行收卷,将收卷后呈卷状的材料沿其宽度方向裁切形成单卷宽度尺寸与要求款式的吸收芯体的宽度尺寸,再对其放卷粘附上无纺布层6’后对无纺布6’的横向两侧弯折并粘附形成复合芯体。该吸收芯体在制备中,为了防止高分子吸水树脂材料的泄露需要多粘附一层无纺布,不仅增加了加工工艺流程,从而降低生产效率,并且无纺布与下层无纺布形成叠层部分降低了透气性以及增加了加工成本。
发明内容
因此,针对上述的问题,本发明提供一种改进型复合芯体的制备方法,它主要解决了现有技术中复合芯体的加工工艺繁琐、加工成本高的问题。
为实现上述目的,本发明采用了以下技术方案:
一种改进型复合芯体的制备方法,包括以下步骤:
a、将一无纺布以连续的方式进行输送,定义沿无纺布的输送方向为纵向方向,沿其宽度方向为横向方向,在连续输送的无纺布的上表面进行喷胶处理;
b、在步骤a的无纺布的上表面添加高分子吸水树脂材料;
c、将一膨松无纺布以连续的方式输送,并对膨松无纺布的上表面进行喷胶处理,再将高分子吸水树脂材料喷洒在膨松无纺布的间隙内;
d、对步骤c中的膨松无纺布的下表面进行喷胶处理,并且将其复合在步骤 b的制品的上表面上;
e、将步骤d的制品进行收卷形成卷状结构,并且沿轴向方向间隔裁切,形成单个宽度尺寸较小的卷状材料;
f、将步骤d的制品进行放卷,并以连续的方式进行输送;
g、将一底层无纺布以连续的方式输送,并对其下表面进行喷胶处理,再将其与膨松无纺布的上表面复合,所述膨松无纺布分布于底层无纺布的横向中部,所述底层无纺布的横向尺寸比膨松无纺布的横向尺寸宽10mm~50mm;
h、将步骤g中的底层无纺布的横向两侧中未与膨松无纺布粘合的区域向下、向内弯折包覆,使其粘附在无纺布的下表面的横向两侧。
进一步的,所述底层无纺布的横向尺寸比膨松无纺布的横向尺寸宽20mm。
进一步的,所述步骤c中的膨松无纺布的上表面在喷胶之前先通过凹凸辊对其下表面进行压合形成至少两个沿横向方向平行凹槽。
进一步的,所述步骤c中的高分子吸水树脂材料的喷洒中所采用的喷枪温度控制在25℃~40℃,气压控制在0.1Mpa~0.8Mpa。
进一步的,所述步骤c中高分子吸水树脂材料喷洒在膨松无纺布的深度尺寸占膨松无纺布厚度的三分之一至二分之一。
通过采用前述技术方案,本发明的有益效果是:本改进型复合芯体的制备方法,通过膨松无纺布的一面喷涂高分子吸水树脂材料,高分子吸水树脂材料的进入到膨松无纺布的间隙中,并与膨松无纺布粘合,形成较为牢固的连接,其形成一层吸水性强的高分子吸水树脂层结构,膨松无纺布的另一面与喷涂形成的一层高分子吸水树脂层粘合,从而固定住高分子吸水树脂材料,防止其发生窜动,并且在后续的收卷、分切时能够很好的锁住高分子吸水树脂材料,有利于后续对底层无纺布的复合,与以往的复合芯体的制备方法相比,减少了材料收卷之前需要预先复合一层无纺布,防止材料在收卷过程的泄露或者粘接在另外的无纺布上的问题,本申请文件,通过该种制备方法,减少了一层无纺布的复合工序,简化了加工工艺,降低了加工成本,并且能够很好的保持着复合芯体的超薄性、吸水性以及防止吸水后的起坨、断裂的问题发生,同时,提升了透气性;进一步的,膨松无纺布下表面设置相互平行的凹槽,凹槽呈纵向分布,使得形成的吸收芯体的中部形成透气腔,有利于气体的流通、替换,提高透气性,并且在活动是能够起到较好弯折作用,提高活动性能。
附图说明
图1是现有技术中复合芯体的剖视结构示意图;
图2是现有技术中复合芯体的工艺流程图;
图3是本发明实施例一的剖视结构示意图;
图4是本发明实施例一的工艺流程图;
图5是本发明实施例二的工艺流程图。
具体实施方式
现结合附图和具体实施方式对本发明进一步说明。
本发明实施例为:
实施例一:
参考图3与图4,一种改进型复合芯体的制备方法,包括以下步骤:
a、将一无纺布1以连续的方式进行输送,定义沿无纺布1的输送方向为纵向方向,沿其宽度方向为横向方向,在连续输送的无纺布1的上表面进行喷胶处理;
b、在步骤a的无纺布1的上表面添加高分子吸水树脂材料2;
c、将一膨松无纺布3以连续的方式输送,并对膨松无纺布3的上表面进行喷胶处理,再将高分子吸水树脂材料4喷洒在膨松无纺布3的间隙内,高分子吸水树脂材料4的喷洒中所采用的喷枪温度控制在30℃,气压控制在0.5Mpa,高分子吸水树脂材料喷洒在膨松无纺布的深度尺寸占膨松无纺布厚度的二分之一;
d、对步骤c中的膨松无纺布3的下表面进行喷胶处理,并且将其复合在步骤b的制品的上表面上;
e、将步骤d的制品进行收卷形成卷状结构,并且沿轴向方向间隔裁切,形成单个宽度尺寸较小的卷状材料;
f、将步骤d的制品进行放卷,并以连续的方式进行输送;
g、将一底层无纺布5以连续的方式输送,并对其下表面进行喷胶处理,再将其与膨松无纺布3的上表面复合,所述膨松无纺布3分布于底层无纺布5的横向中部,所述底层无纺布5的横向尺寸比膨松无纺布3的横向尺寸宽20mm;
h、将步骤g中的底层无纺布5的横向两侧中未与膨松无纺布3粘合的区域向下、向内弯折包覆,使其粘附在无纺布1的下表面的横向两侧。
实施例二:
参考图5,一种改进型复合芯体的制备方法,包括以下步骤:
a、将一无纺布1以连续的方式进行输送,定义沿无纺布1的输送方向为纵向方向,沿其宽度方向为横向方向,在连续输送的无纺布1的上表面进行喷胶处理;
b、在步骤a的无纺布1的上表面添加高分子吸水树脂材料2;
c、将一膨松无纺布3以连续的方式输送,并通过凹凸辊对其下表面进行压合形成三个沿横向方向平行凹槽6,高分子吸水树脂材料4的喷洒中所采用的喷枪温度控制在30℃,气压控制在0.5Mpa,高分子吸水树脂材料喷洒在膨松无纺布的深度尺寸占膨松无纺布厚度的二分之一;
d、对步骤c中的膨松无纺布3的上表面进行喷胶处理,再将高分子吸水树脂材料4喷洒在膨松无纺布3的间隙内;
e、对步骤c中的膨松无纺布3的下表面进行喷胶处理,并且将其复合在步骤b的制品的上表面上;
f、将步骤d的制品进行收卷形成卷状结构,并且沿轴向方向间隔裁切,形成单个宽度尺寸较小的卷状材料;
g、将步骤d的制品进行放卷,并以连续的方式进行输送;
h、将一底层无纺布5以连续的方式输送,并对其下表面进行喷胶处理,再将其与膨松无纺布3的上表面复合,所述膨松无纺布3分布于底层无纺布的横向中部,所述底层无纺布5的横向尺寸比膨松无纺布3的横向尺寸宽20mm;
i、将步骤g中的底层无纺布5的横向两侧中未与膨松无纺布3粘合的区域向下、向内弯折包覆,使其粘附在无纺布1的下表面的横向两侧。
本发明的工作方式是:本改进型复合芯体的制备方法,通过膨松无纺布3 的一面喷涂高分子吸水树脂材料4,高分子吸水树脂材料4的进入到膨松无纺布 3的间隙中,并与膨松无纺布3粘合,形成较为牢固的连接,其形成一层吸水性强的高分子吸水树脂层结构,膨松无纺布3的另一面与喷涂形成的一层高分子吸水树脂层2粘合,从而固定住高分子吸水树脂材料,防止其发生窜动,并且在后续的收卷、分切时能够很好的锁住高分子吸水树脂材料,有利于后续对底层无纺布5的复合,与以往的复合芯体的制备方法相比,减少了材料收卷之前需要预先复合一层无纺布,防止材料在收卷过程的泄露或者粘接在另外的无纺布上的问题,本申请文件,通过该种制备方法,减少了一层无纺布的复合工序,简化了加工工艺,降低了加工成本,并且能够很好的保持着复合芯体的超薄性、吸水性以及防止吸水后的起坨、断裂的问题发生,同时,提升了透气性;膨松无纺布3下表面设置相互平行的凹槽6,凹槽6呈纵向分布,使得形成的吸收芯体的中部形成透气腔,有利于气体的流通、替换,提高透气性,并且在活动是能够起到较好弯折作用,提高活动性能。
尽管结合优选实施方案具体展示和介绍了本发明,但所属领域的技术人员应该明白,在不脱离所附权利要求书所限定的本发明的精神和范围内,在形式上和细节上可以对本发明做出各种变化,均为本发明的保护范围。

Claims (3)

1.一种改进型复合芯体的制备方法,其特征在于:包括以下步骤:
a、将一无纺布以连续的方式进行输送,定义沿无纺布的输送方向为纵向方向,沿其宽度方向为横向方向,在连续输送的无纺布的上表面进行喷胶处理;
b、在步骤a的无纺布的上表面添加高分子吸水树脂材料;
c、将一膨松无纺布以连续的方式输送,并对膨松无纺布的上表面进行喷胶处理,再将高分子吸水树脂材料喷洒在膨松无纺布的间隙内,高分子吸水树脂材料的喷洒中所采用的喷枪温度控制在25℃~40℃,气压控制在0.1Mpa~0.8Mpa,高分子吸水树脂材料喷洒在膨松无纺布的深度尺寸占膨松无纺布厚度的三分之一至二分之一;
d、对步骤c中的膨松无纺布的下表面进行喷胶处理,并且将其复合在步骤b的制品的上表面上;
e、将步骤d的制品进行收卷形成卷状结构,并且沿轴向方向间隔裁切,形成单个宽度尺寸较小的卷状材料;
f、将步骤e的制品进行放卷,并以连续的方式进行输送;
g、将一底层无纺布以连续的方式输送,并对其下表面进行喷胶处理,再将其与膨松无纺布的上表面复合,所述膨松无纺布分布于底层无纺布的横向中部,所述底层无纺布的横向尺寸比膨松无纺布的横向尺寸宽10mm~50mm;
h、将步骤g中的底层无纺布的横向两侧中未与膨松无纺布粘合的区域向下、向内弯折包覆,使其粘附在无纺布的下表面的横向两侧。
2.根据权利要求1所述的改进型复合芯体的制备方法,其特征在于:所述底层无纺布的横向尺寸比膨松无纺布的横向尺寸宽20mm。
3.根据权利要求1所述的改进型复合芯体的制备方法,其特征在于:所述步骤c中的膨松无纺布的表面在喷胶之前先通过凹凸辊对其表面进行压合形成至少两个沿横向方向平行凹槽。
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