CN104840304A - 带有海泥无纺布层的一次性纸尿裤 - Google Patents

带有海泥无纺布层的一次性纸尿裤 Download PDF

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CN104840304A
CN104840304A CN201510076130.8A CN201510076130A CN104840304A CN 104840304 A CN104840304 A CN 104840304A CN 201510076130 A CN201510076130 A CN 201510076130A CN 104840304 A CN104840304 A CN 104840304A
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Abstract

本发明涉及一种带有海泥无纺布层的一次性纸尿裤,包括一裤型主体,其由防渗底层、吸收芯体和吸水表层依次层叠贴合形成;所述吸收芯体设于防渗底层与吸水表层之间的中心裆部位置;所述防渗底层与吸收表层前后两端分别贴合形成弹性腰围和前腰贴,且所述弹性腰围两侧分别设有左右腰贴;所述裤型主体通过左右腰贴与前腰贴贴合形成裤型,且其裆部位置两侧设有腿部收缩橡筋。所述吸水表层包括至少一层海泥无纺布。本发明通过在无纺布上添加海泥成分,大大提高了纸尿裤的护肤效果和抗菌效果,从而有效预防长时间佩戴纸尿裤带来的皮肤刺激问题。

Description

带有海泥无纺布层的一次性纸尿裤
技术领域
本发明涉及一次性纸尿裤制造领域,尤其涉及带有海泥无纺布层的一次性纸尿裤。
背景技术
一般一次性纸尿裤的吸水表层是直接与使用者的皮肤表面接触的部分,因此说它是决定使用者皮肤状态的最为重要的部分也不为过。吸水表层的作用在于快速吸收使用者的小便,使之透过表层到达吸水芯体,从而使表层始终处于干爽状态,并且是防止大便外漏的第一道屏障。吸水表层一直以来主要使用聚乙烯或聚丙烯等无纺布面料,其制作方法中热合无纺布占据着主流地位。近年来一般还使用加快吸水速度、长时间保持干爽的热风无纺布,或单位面积重量较重的厚体高蓬松无纺布或导流层无纺布等。
另外被称为弹性腰围或防漏护围的部分与宝宝的皮肤直接接触,具有防止液体小便与固体或液状大便从一次性纸尿裤里外漏的作用。为了达到这一目的,一般会将弹性体和无纺布结合起来使用,但是这样会在宝宝的皮肤上留下红色的勒痕,可以说是对宝宝的皮肤造成物理性刺激的因素。弹性腰围的制作目的在于防止液体外渗,因此主要使用疏水性的聚乙烯或聚丙烯无纺布,其制作方法主要由纺粘无纺布占主流地位。
近年来提高疏水性能、外观较好的多层复合无纺布也被广泛应用,最具代表性的有SMS(spun-melt blown-spun),SMMS(spun-melt blown-melt blown-spun)无纺布等。
目前普遍使用的是超薄瞬吸型一次性纸尿裤,此类纸尿裤通过增加高吸水性树脂的含量、减少绒毛浆的含量来使厚度变得更薄、吸水性能更优。因此可以吸收的小便量也随之增加,使宝宝佩带一次性纸尿裤的时间也相对变得更长,从而大小便对宝宝皮肤造成刺激的可能性也变得更大。通常佩带一次性纸尿裤的宝宝皮肤上会出现的皮肤刺激现象,俗称尿布疹,是一种皮肤红斑现象,医学上定义为原发性刺激性皮炎。此类尿布疹的发病原因是小便的高pH导致皮肤的pH上升,在这样的条件下对皮肤造成的刺激和摩擦等为尿布疹的发病创造了环境条件,另外像白念珠菌等此类细菌的侵入也会使刺激程度加重。
为了降低这一皮肤刺激的发生机率,如何在与皮肤表面直接接触的吸水表层或弹性腰围用无纺布上进行皮肤保护处理,使之对皮肤造成刺激的尿布疹等的发生率最小化成为了极其重要的解决课题。
发明内容
本发明在于克服现有技术的缺点于不足,提供一种具有护肤效果和抗菌效果且穿着舒适的带有海泥无纺布层的一次性纸尿裤。
为了达到上述目的,本发明采用以下技术方案:带有海泥无纺布层的一次性纸尿裤,包括一裤型主体,其由防渗底层、吸收芯体和吸水表层依次层叠贴合形成;所述吸收芯体设于防渗底层与吸水表层之间的中心裆部位置;所述防渗底层与吸收表层前后两端分别贴合形成弹性腰围和前腰贴,且所述弹性腰围两侧分别设有左右腰贴;所述裤型主体通过左右腰贴与前腰贴贴合形成裤型,且其裆部位置两侧设有腿部收缩橡筋。所述吸水表层包括至少一层海泥无纺布。
进一步,所述吸收表层上位于吸收芯体两侧还设有立体的防漏护围,该防漏护围一侧与吸收表层贴合,另一侧设有橡筋并通过橡筋伸缩形成立体屏障。在使用过程中,该立体屏障可避免因宝宝扭动而导致排泄物从两侧外漏。
进一步,所述弹性腰围由外层无纺布及内层海泥无纺布复合于中间弹性体两面上形成,在自然状态下外层无纺布和内层海泥无纺布呈褶皱状。该设置可防止液体外渗,同时提高纸尿裤的使用舒适度以及防止皮肤刺激问题的发生。
进一步,所述防漏护围由海泥无纺布制成。由于防漏护围与宝宝的皮肤直接接触,长时间佩戴容易导致皮肤刺激问题,采用添加海泥的无纺布可很好地避免皮肤刺激问题的发生。
进一步,所述海泥无纺布由海泥浆通过凹版印刷式涂布工艺涂布于无纺布表面形成。采用该工艺方法涂布均匀,且可实现快速运转作业。海泥浆既可均匀涂布于无纺布表面,也可呈条状间隔涂布,或者以其他任何均匀分布的条纹涂布于无纺布表面。
进一步,所述海泥浆按重量份数由以下成分组成:
进一步,所述海泥无纺布中海泥浆在无纺布上的涂布密度为4.5~20g/m2,经干燥处理后海泥浆固体粉末与无纺布的质量比为0.5%~2.0%。
相比于现有技术,本发明的带有海泥无纺布层的一次性纸尿裤,通过凹版印刷式涂布工艺将海泥浆涂布于无纺布表面形成海泥无纺布,并将其应用于吸水表层、防漏护围以及弹性腰围等与宝宝皮肤直接接触的部位,大大提高了纸尿裤的护肤效果和抗菌效果,从而有效预防长时间佩戴纸尿裤带来的皮肤刺激问题。
为了更好地理解和实施,下面结合附图详细说明本发明。
附图说明
图1为本发明的带有海泥无纺布层的一次性纸尿裤的展开示意图
图2为本发明的带有海泥无纺布层的一次性纸尿裤的截面示意图
图3为在无纺布上进行凹版印刷式涂布工艺的示意图
图4是将海泥浆液转印至无纺布上的状态示意图
具体实施方式
请同时参阅图1和图2,其中,图1为本发明的带有海泥无纺布层的一次性纸尿裤的展开示意图;图2为本发明的带有海泥无纺布层的一次性纸尿裤的截面示意图。本发明的带有海泥无纺布层的一次性纸尿裤,包括裤型主体1;所述裤型主体由防渗底层11、吸收芯体12和吸水表层13依次层叠贴合形成。
所述吸收芯体12设于防渗底层11与吸水表层13之间的中心裆部位置;所述防渗底层11与吸收表层13前后两端分别贴合形成弹性腰围14和前腰贴15,且所述弹性腰围14两侧分别设有左腰贴141和右腰贴142;所述裤型主体1通过左141腰贴和右腰贴142分别与前腰贴15贴合形成裤型,且其裆部位置两侧设有腿部收缩橡筋16。所述吸收表层13上位于吸收芯体13两侧还设有立体的防漏护围17,该防漏护围17一侧与吸水表层13贴合,另一侧设有橡筋并通过橡筋伸缩形成立体屏障。
具体地,所述吸水表层13包括至少一层海泥无纺布。该海泥无纺布由海泥浆通过凹版印刷式涂布工艺涂布于无纺布表面形成。海泥浆既可均匀涂布于无纺布表面,也可呈条状间隔涂布,或者以其他任何均匀分布的条纹涂布于无纺布表面。
进一步地,所述弹性腰围14由外层无纺布及内层海泥无纺布复合于中间弹性体两面上形成,在自然状态下外层无纺布和内层海泥无纺布呈褶皱状。所述中间弹性体既可以为橡筋等,也可以为弹性薄膜。所述弹性腰围也可由天然橡胶或聚乙烯丝等形成的公认材料边褶无纺布制成。所述防漏护围亦可由海泥无纺布制成。
具体地,本发明中的吸收芯体12,是由纤维素的绒毛浆与丙烯酸作为主要成分进行交联而形成的强吸水性树脂。在制作裤型主体1时,一般通过导流无纺布或无纺布把吸收芯体置于防渗底层11之上,然后在吸收芯体12的上边接合表层无纺布131或在表层无纺布131的上层或下层接合第二无纺布132来形成吸水表层13,最后在吸收芯体12的左右,即表层无纺布的左右接合一对弹性腰围14。而在本发明中,上述表层无纺布131、第二无纺布132、弹性腰围14的内层无纺布以及防漏护围均采用海泥无纺布,其由海泥浆通过凹版印刷式涂布工艺涂布于无纺布表面形成。
所述海泥浆按重量份数由以下成分组成:
所述海泥无纺布中海泥浆在无纺布上的涂布密度为4.5~20g/m2,经干燥处理后海泥浆固体粉末与无纺布的质量比为0.5%~2.0%。
本发明中使用的海泥由韩国保宁市政府提供,由于在保宁大川海滨浴场采集的海泥中挟杂着天然海藻类及贝类等的腐蚀物,因此需要经过了洗涤、干燥、粉碎、灭菌等多道环节去除杂质后,只提取对人体有益的海泥进行325Mesh的微细粉碎,从而获得海泥粉。
海泥的主要成分有Al2O3(氧化铝),CaO(氧化钙),Fe2O3(氧化铁),K2O(氧化钾),MgO(氧化镁),MnO(氧化亚锰),Na2O(氧化钠),TiO2(二氧化钛),SiO2(二氧化硅),P2O5(磷矿石)化合物等,各成分的含量如表1所示。
表1保宁海泥粉末中的化学物质成分含量表(韩国地质资源研究院[2006.6.2])
进一步地,对海泥粉末中的各个成分的含量检验结果显示,锗含量为0.2mg/kg(韩国化学试验研究院[2006.5.2]),远红外线放射率(5-20μm)0.918,放射能3.701×102W/m2(试验温度40℃/陶瓷工业技术院[2006.6.22]),说明其远红外线放射效果要远优于五色黄土和黄土森林浴,各种化学元素的含量也比其他地区的海泥要高,因此,添加该海泥粉有益于增强杀菌效果,预防尿布疹等皮肤刺激性疾病的发生。各元素含量的检验结果如表2。
表2海泥粉末中的各元素检验结果(韩国地质资源研究院[2014.7.15])
请同时参阅图3和图4,其中,图3为在无纺布上进行凹版印刷式涂布工艺的示意图;图4为将海泥浆液转印至无纺布上的状态示意图。
本发明采用以下工艺流程在无妨布上进行海泥染色:
(1)将海泥粉、粘合剂、增稠剂和水按照2:2:1:5的质量比混合均匀,并可加入适量水溶性油墨,制成海泥浆液;
(2)将成卷的无纺布装在放卷机2上,通过凹版印刷式涂布工艺将海泥浆液转印至无纺布上;具体地,在铜质的滚筒上雕刻特定花纹(方格纹、条纹等均可),使海泥浆液从浆液池3中进入雕刻的凹缝中,从而使无纺布在通过铜质滚筒与其上方的橡胶滚筒之间时将凹缝中的海泥浆液转印至无纺布上。
(3)将印有海泥浆液的无纺布以100m/min的速度在90~100℃的干燥室4中进行干燥处理,得到干燥的海泥无纺布;
(4)将干燥后的海泥无纺布运至复绕机5中重新进行缠绕成卷。
上述工艺流程的特点在于海泥的均匀涂布和不会渗透至无纺布的背面,充分的干燥是极为重要的工艺条件,它可以最大限度地维持作为吸水性卫生用品的无纺布的空隙结构,从而可以保障无纺布的快速吸收。采用该工艺方法涂布均匀,且可实现快速运转作业。
上述工艺流程中,海泥浆在无纺布上的涂布密度为4.5~20g/m2,经干燥处理后海泥浆固体粉末与无纺布的质量比为0.5%~2.0%。
相比于现有技术,本发明的带有海泥无纺布层的一次性纸尿裤,通过凹版印刷式涂布工艺将海泥浆涂布于无纺布表面形成海泥无纺布,并将其应用于吸水表层、防漏护围以及弹性腰围等与宝宝皮肤直接接触的部位,大大提高了纸尿裤的护肤效果和抗菌效果,从而有效预防长时间佩戴纸尿裤带来的皮肤刺激问题。
以上仅是本发明的优选实施方式,应当指出的是,上述优选实施方式不应视为对本发明的限制,本发明的保护范围应当以权利要求所限定的范围为准。对于本技术领域的普通技术人员来说,在不脱离本发明的精神和范围内,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。

Claims (7)

1.带有海泥无纺布层的一次性纸尿裤,包括一裤型主体,其由防渗底层、吸收芯体和吸水表层依次层叠贴合形成;所述吸收芯体设于防渗底层与吸水表层之间的中心裆部位置;所述防渗底层与吸收表层前后两端分别贴合形成弹性腰围和前腰贴,且所述弹性腰围两侧分别设有左右腰贴;所述裤型主体通过左右腰贴与前腰贴贴合形成裤型,且其裆部位置两侧设有腿部收缩橡筋;其特征在于:所述吸水表层包括至少一层海泥无纺布。
2.根据权利要求1所述的带有海泥无纺布层的一次性纸尿裤,其特征在于:所述吸收表层上位于吸收芯体两侧还设有立体的防漏护围,该防漏护围一侧与吸收表层贴合,另一侧设有橡筋并通过橡筋伸缩形成立体屏障。
3.根据权利要求2所述的带有海泥无纺布层的一次性纸尿裤,其特征在于:所述弹性腰围由外层无纺布及内层海泥无纺布复合于中间弹性体两面上形成,在自然状态下外层无纺布和内层海泥无纺布呈褶皱状。
4.根据权利要求3所述的带有海泥无纺布层的一次性纸尿裤,其特征在于:所述防漏护围由海泥无纺布制成。
5.根据权利要求1~4任一项所述的带有海泥无纺布层的一次性纸尿裤,其特征在于:所述海泥无纺布由海泥浆通过凹版印刷式涂布工艺涂布于无纺布表面形成。
6.根据权利要求5所述的带有海泥无纺布层的一次性纸尿裤,其特征在于:所述海泥浆按重量份数由以下成分组成:
7.根据权利要求6所述的带有海泥无纺布层的一次性纸尿裤,其特征在于:所述海泥无纺布中海泥浆在无纺布上的涂布密度为4.5~20g/m2,经干燥处理后海泥浆固体粉末与无纺布的质量比为0.5%~2.0%。
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