CN112618169B - 一种抗菌婴儿纸尿裤的制备方法 - Google Patents

一种抗菌婴儿纸尿裤的制备方法 Download PDF

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CN112618169B
CN112618169B CN202011601534.1A CN202011601534A CN112618169B CN 112618169 B CN112618169 B CN 112618169B CN 202011601534 A CN202011601534 A CN 202011601534A CN 112618169 B CN112618169 B CN 112618169B
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woven fabric
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利莉
王添辉
谢锡佳
陈宗哲
梁倩儿
叶俊鸿
何瑜
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Guangdong Cojin Co ltd
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Abstract

本发明涉及卫生用品领域,提供一种抗菌婴儿纸尿裤的制备方法,解决现有技术的抗菌纸尿裤抗菌效果差及透气性能不佳的缺陷,包括制备抗菌透气复合层、制备吸收体、制备不透液性底层以及将抗菌透气复合层、吸收体和不透液性底层复合为一体的制备步骤。

Description

一种抗菌婴儿纸尿裤的制备方法
技术领域
本发明涉及卫生用品领域,尤其涉及一种抗菌婴儿纸尿裤的制备方法。
背景技术
婴儿纸尿裤,一般包括由上至下依次叠层设置的透液性面层、吸收体及不透液性底层,其中的透液性面层通常由亲水无纺布及设于其横向两侧的疏水无纺布组成,而传统的亲水无纺布和疏水无纺布往往是没有抗菌效果的。婴儿的尿液在温湿环境中容易与空气中的氧结合进而滋生细菌,这就要求面层具有抗菌效果。市面的抗菌纸尿裤,常见的是对面层的无纺布进行抗菌处理,抗菌处理的方式一般有两种,第一种是将无纺布浸泡在抗菌处理液中,采用这种浸泡式处理的无纺布虽然具有一定的抗菌效果,但是其无纺布的强度却下降了,第二种是在无纺布上喷洒抗菌液,这种方式处理后的无纺布表面的孔隙变小,透气性降低,影响整体使用的舒适性。
中国专利申请号201910502885 .8公开了一种亲肤抗菌纸尿裤,在纸尿裤本体上接触人体皮肤的一面压覆一层抗菌聚合物膜材料,利用聚丙烯酸酯乳液为主体原料合成制备高吸附性速干前驱体产物,再添加有机反应物互溶,然后加 入纳米二氧化钛,进行成膜反应,制备得到的成型抗菌聚合物膜材料,使用无水乙醇浸泡烘干即可安全使用,该抗菌聚合物膜材料在纸尿裤应用上具有很好的表现,有效杀死各类细菌,使死亡的细菌从皮肤表面脱离,制备得到的纸尿裤表面能够对细菌起到极好的杀除作用,从而抑制细菌的繁殖,在吸收尿液后立即在表面形成物 理凝胶,防止尿液的反渗透。但是,由于吸收尿液后在纸尿裤的表面形成了一层凝胶膜,纸尿裤的透气性能降低了,如果没有及时的更换纸尿裤,闷热感较强,使用不舒适。
发明内容
因此,针对上述的问题,本发明提供一种抗菌婴儿纸尿裤的制备方法,解决现有技术的抗菌纸尿裤抗菌效果差及透气性能不佳的缺陷。
为实现上述目的,本发明采用了以下技术方案:一种抗菌婴儿纸尿裤的制备方法,包括制备抗菌透气复合层、制备抗菌吸收体、制备不透液性底层以及将抗菌透气复合层、抗菌吸收体和不透液性底层复合为一体的制备步骤,所述制备抗菌透气复合层的具体步骤为:
a1:制备抗菌表层无纺布:将聚丙烯切片、载银抗菌母粒混合,送入造粒机造粒,得到纺丝原母粒,再将纺丝原母粒送入螺杆挤出机熔融挤出,经计量泵计量后喷丝、冷却、上油、定型,得到改性聚丙烯纤维,再将改性聚丙烯纤维送入开松机开松梳理成纤维网,再经针刺加固,得到抗菌表层无纺布;
a2:制备亲水多孔无纺布:以水刺无纺布为基材,在水刺无纺布表面均匀喷洒一层热熔胶,再在施胶后的水刺无纺布表面喷洒亲水聚合物微球分散液,经烘干处理后得到亲水多孔无纺布;所述亲水聚合物微球分散液的制备方法为:将聚甲基丙烯酸叔丁酯、亲水性单体、交联剂、乙醇、水、2,2’-偶氮二(N,N’-二亚甲基异丙基咪唑)混合,在55-65℃恒温水浴中振动反应22-25h;
a3:将a2的亲水多孔无纺布在线传输通过热压合复合到a1的抗菌表层无纺布上;
a4:将复合为一体的抗菌透气复合层在线传输入一组锥形针辊组处理,所述锥形针辊组包括锥形针凸辊和与之相匹配的凹辊,所述锥形针凸辊设置在凹辊上方,所述锥形针凸辊与凹辊之间具有供抗菌透气复合层穿过的间隙,所述锥形针凸辊圆周外表面均匀间隔设置有锥形针,所述锥形针的横截面积从自由端至锥形针凸辊外表面的方向逐渐变大,经过所述锥形针辊组处理后的抗菌透气复合层的上层亲水多孔无纺布表面的孔径大于抗菌表层无纺布的孔径;
a5:将经过步骤a4处理的抗菌透气复合层在线翻转180°,使抗菌表层无纺布在亲水多孔无纺布之上。
进一步的改进是:所述a2中的亲水性单体为丙烯酰胺。
进一步的改进是:所述亲水聚合物微球分散液中水的重量占比为5-8%。
进一步的改进是:所述聚丙烯切片与载银抗菌母粒的用量比以重量百分比计=1:0.01-0.1。
进一步的改进是:所述螺杆挤出机的加热温度为70-290℃
进一步的改进是:还包括在吸收体与抗菌透气复合层之间在线施加一活性炭吸味条,具体的施加方法为:以亲水无纺布为载体,亲水无纺布开卷传输后,在其表面均匀施加高分子吸水性树脂与活性炭的混合物,所述高分子吸水性树脂与活性炭的用量比以重量计=1:0.3-0.5,接着在其表面在线覆盖一层卫生纸,在亲水无纺布与混合物之间以及混合物与卫生纸之间均有喷胶,复合为一体后进行分切,即得到活性炭吸味条,将分切好后的活性炭吸味条传输到吸收体上与吸收体复合为一体再进行后续的处理。
进一步的改进是:分切后的单个活性炭吸味条与吸收体宽度相同。
进一步的改进是:分切后的单个活性炭吸味条长度为吸收体长度的1/9-1/10。
进一步的改进是:定义吸收体沿长度方向具有依次连接的前段、中段和尾段,分切后的活性炭吸味条传输复合在吸收体的后段表面。
进一步的改进是:定义吸收体沿长度方向具有依次连接的前段、中段和尾段,分切后的活性炭吸味条传输复合在吸收体的前段表面。
进一步的改进是:还包括在吸收体与抗菌透气复合层之间在线施加一活性炭吸味条,具体的施加方法为:以无尘纸为基材,在无尘纸表面在线依次复合高分子吸水树脂、活性炭及卫生纸,高分子吸水树脂及活性炭均为粉末状,分别通过不同的下料装置传输到无尘纸上,再通过喷胶、辊压分切后得到单个的活性炭吸味条,再将所述活性炭吸味条传输复合到吸收体上。
进一步的改进是:活性炭吸味条在分切前还进行包裹处理,即在其外表面包裹一层无纺布。
通过采用前述技术方案,本发明的有益效果为:
1、本发明的抗菌婴儿纸尿裤,其最表层为抗菌透气复合层,即由抗菌表层无纺布和亲水多孔无纺布复合而成,该抗菌透气复合层的抗菌表层无纺布上均匀布置有密密麻麻的细小孔,用于供液体通过,而亲水多孔无纺布上也布置有孔,但该孔的孔径大于抗菌表层无纺布的孔径,使液体可以快速的通过下渗到吸收体中,该亲水多孔无纺布在制备的过程中有经过聚合物微球分散液处理,使得无纺布的表面分布有亲水聚合物微球,使无纺布的亲水性得到增加,液体从抗菌表层无纺布进入该层后能够快速的被这层无纺布吸收且由于亲水聚合物微球吸水后发生溶胀,排泄液不容易反渗到抗菌表层无纺布上,不易发生反渗。
2、抗菌表层无纺布的吸水性低于亲水多孔无纺布的吸水性,可保持纸尿裤面层的干爽性,提升使用舒适性。
3、纸尿裤的最表层,即抗菌表层无纺布,其抗菌处理不是采用传统的浸泡或喷洒工序,而是将载银抗菌母粒直接与聚丙烯切片混合后熔融纺丝再制成无纺布,从原材料上进行改进,制得的纤维本身即具备抗菌效果,避免了制成的无纺布存在透气不佳和机械强度不高的问题。
4、复合为一体的抗菌透气复合层通过一组锥形针辊处理,使该复合层的表面形成具有尺寸差异的细小孔,即可改善透气效果又可增加吸收速度。
5、在吸收体抗菌透气复合层之间在线施加一活性炭吸味条,在婴儿尿后或大便后能够吸收一定的异味,改善周围的环境。
6、进一度的,活性炭吸味条设置在吸收体的后段表面,可以起到一定的防后漏作用,且由于婴儿大便一般都集中在后部,将活性炭吸味条设置在吸收体的后段,可以更好的发挥吸味效果。
7、进一度的,活性炭吸味条设置在吸收体的前段表面,可以起到一定的防前漏作用。
附图说明
图1是本发明实施例中锥形针辊组的结构示意图;
图2为图1中锥形针凸辊的圆周侧面展开结构示意图。
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:
参考图1及图2,一种抗菌婴儿纸尿裤的制备方法,包括以下制备步骤:
a:制备抗菌透气复合层;
a1:制备抗菌表层无纺布:将聚丙烯切片、载银抗菌母粒混合,送入造粒机造粒,得到纺丝原母粒,再将纺丝原母粒送入螺杆挤出机熔融挤出,所述螺杆挤出机的加热温度为70-290℃,从螺杆挤出机的进料端到出料端温度呈梯度上升,经计量泵计量后喷丝、冷却、上油、定型,得到改性聚丙烯纤维,再将改性聚丙烯纤维送入开松机开松梳理成纤维网,再经针刺加固,得到抗菌表层无纺布;所述聚丙烯切片与载银抗菌母粒的用量比以重量百分比计=1:0.05;
a2:制备亲水多孔无纺布:以水刺无纺布为基材,在水刺无纺布表面均匀喷洒一层热熔胶,再在施胶后的水刺无纺布表面喷洒亲水聚合物微球分散液,经烘干处理后得到亲水多孔无纺布;所述亲水聚合物微球分散液的制备方法为:将聚甲基丙烯酸叔丁酯、丙烯酰胺、N,N’-亚甲基二丙烯酰胺、乙醇、水、2,2’-偶氮二(N,N’-二亚甲基异丙基咪唑)混合,在55-65℃恒温水浴中振动反应22-25h;所述各物质组分的用量为:聚甲基丙烯酸叔丁酯60重量份、丙烯酰胺20重量份、N,N’-亚甲基二丙烯酰胺8重量份、乙醇40重量份、水5重量份、2,2’-偶氮二(N,N’-二亚甲基异丙基咪唑)5重量份;
a3:将a2的亲水多孔无纺布在线传输通过热压合复合到a1的抗菌表层无纺布上;
a4:将复合为一体的抗菌透气复合层在线传输入一组锥形针辊组处理,所述锥形针辊组包括锥形针凸辊1和与之相匹配的凹辊2,所述锥形针凸辊1设置在凹辊2上方,所述锥形针凸辊1与凹辊2之间具有供抗菌透气复合层穿过的间隙,所述锥形针凸辊1圆周外表面均匀间隔设置有锥形针3,所述锥形针3的横截面积从自由端至锥形针凸辊外表面的方向逐渐变大,经过所述锥形针辊组处理后的抗菌透气复合层的上层亲水多孔无纺布表面的孔径大于抗菌表层无纺布的孔径;
a5:将经过步骤a4处理的抗菌透气复合层在线翻转180°,使抗菌表层无纺布在亲水多孔无纺布之上。
b、制备吸收体,所述吸收体以传统的方式进行制备,在本实施例中,吸收体是由无尘纸包裹绒毛浆与高分子吸水树脂组成;所述吸收体具有沿长度方向依次连接的前段、中段和后段;
c、在吸收体的后段上在线传输复合一活性炭吸味条,具体的复合方法为:以亲水无纺布为载体,亲水无纺布开卷传输后,在其表面均匀施加高分子吸水性树脂与活性炭的混合物,所述高分子吸水性树脂与活性炭的用量比以重量计=1:0.3,接着在其表面在线覆盖一层卫生纸,在亲水无纺布与混合物之间以及混合物与卫生纸之间均有喷胶,复合为一体后进行分切,即得到活性炭吸味条,将分切好后的活性炭吸味条传输到吸收体上与吸收体复合为一体;该活性炭吸味条具有与吸收体一样的宽度,长度为吸收体长度的1/9;
d: 将上述抗菌透气复合层在线传输复合到步骤c处理后的吸收体上;
e、再按照传统的方式将前腰贴、魔术扣、腿围橡筋分别在线复合到上述产品上,即得到抗菌婴儿纸尿裤。
本发明的活性炭吸味条的制备方法也可以采用传统的模轮模穴进行成形,再脱模到吸收体上。
对比例
本对比例的纸尿裤,其具有由上至下依次叠层设置的透液性面层、吸收体和不透液性底层,其透液性面层为亲水无纺布和设置在亲水无纺布横向两侧的疏水无纺布组成,吸收体由无尘纸包裹绒毛浆与高分子吸水树脂组成,不透液性底层为PE膜与无纺布复合而成。
对本发明实施例及对比例进行性能测试,结果见下表。
Figure DEST_PATH_IMAGE002
透湿率的检测方法按照GB/T1037进行,纵向拉伸强度和横向拉伸强度按照GB/T1040-1992进行。
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 (12)

1.一种抗菌婴儿纸尿裤的制备方法,其特征在于:包括制备抗菌透气复合层、制备吸收体、制备不透液性底层以及将抗菌透气复合层、吸收体和不透液性底层复合为一体的制备步骤,所述制备抗菌透气复合层的具体步骤为:
a1:制备抗菌表层无纺布:将聚丙烯切片、载银抗菌母粒混合,送入造粒机造粒,得到纺丝原母粒,再将纺丝原母粒送入螺杆挤出机熔融挤出,经计量泵计量后喷丝、冷却、上油、定型,得到改性聚丙烯纤维,再将改性聚丙烯纤维送入开松机开松梳理成纤维网,再经针刺加固,得到抗菌表层无纺布;
a2:制备亲水多孔无纺布:以水刺无纺布为基材,在水刺无纺布表面均匀喷洒一层热熔胶,再在施胶后的水刺无纺布表面喷洒亲水聚合物微球分散液,经烘干处理后得到亲水多孔无纺布;所述亲水聚合物微球分散液的制备方法为:将聚甲基丙烯酸叔丁酯、亲水性单体、交联剂、乙醇、水、2,2’-偶氮二(N,N’-二亚甲基异丙基咪唑)混合,在55-65℃恒温水浴中振动反应22-25h;
a3:将a2的亲水多孔无纺布在线传输通过热压合复合到a1的抗菌表层无纺布上;
a4:将复合为一体的抗菌透气复合层在线传输入一组锥形针辊组处理,所述锥形针辊组包括锥形针凸辊和与之相匹配的凹辊,所述锥形针凸辊设置在凹辊上方,所述锥形针凸辊与凹辊之间具有供抗菌透气复合层穿过的间隙,所述锥形针凸辊圆周外表面均匀间隔设置有锥形针,所述锥形针的横截面积从自由端至锥形针凸辊外表面的方向逐渐变大,经过所述锥形针辊组处理后的抗菌透气复合层的上层亲水多孔无纺布表面的孔径大于抗菌表层无纺布的孔径;
a5:将经过步骤a4处理的抗菌透气复合层在线翻转180°,使抗菌表层无纺布在亲水多孔无纺布之上。
2.根据权利要求1所述的一种抗菌婴儿纸尿裤的制备方法,其特征在于:所述a2中的亲水性单体为丙烯酰胺。
3.根据权利要求1所述的一种抗菌婴儿纸尿裤的制备方法,其特征在于:所述亲水聚合物微球分散液中水的重量占比为5-8%。
4.根据权利要求1所述的一种抗菌婴儿纸尿裤的制备方法,其特征在于:所述聚丙烯切片与载银抗菌母粒的用量比以重量百分比计=1:0.01-0.1。
5.根据权利要求1所述的一种抗菌婴儿纸尿裤的制备方法,其特征在于:所述螺杆挤出机的加热温度为70-290℃。
6.根据权利要求1所述的一种抗菌婴儿纸尿裤的制备方法,其特征在于:还包括在吸收体与抗菌透气复合层之间在线施加一活性炭吸味条,具体的施加方法为:以亲水无纺布为载体,亲水无纺布开卷传输后,在其表面均匀施加高分子吸水性树脂与活性炭的混合物,所述高分子吸水性树脂与活性炭的用量比以重量计=1:0.3-0.5,接着在其表面在线覆盖一层卫生纸,在亲水无纺布与混合物之间以及混合物与卫生纸之间均有喷胶,复合为一体后进行分切,即得到活性炭吸味条,将分切好后的活性炭吸味条传输到吸收体上与吸收体复合为一体再进行后续的处理。
7.根据权利要求6所述的一种抗菌婴儿纸尿裤的制备方法,其特征在于:分切后的单个活性炭吸味条与吸收体宽度相同。
8.根据权利要求7所述的一种抗菌婴儿纸尿裤的制备方法,其特征在于:分切后的单个活性炭吸味条长度为吸收体长度的1/9-1/10。
9.根据权利要求8所述的一种抗菌婴儿纸尿裤的制备方法,其特征在于:定义吸收体沿长度方向具有依次连接的前段、中段和尾段,分切后的活性炭吸味条传输复合在吸收体的后段表面。
10.根据权利要求8所述的一种抗菌婴儿纸尿裤的制备方法,其特征在于:定义吸收体沿长度方向具有依次连接的前段、中段和尾段,分切后的活性炭吸味条传输复合在吸收体的前段表面。
11.根据权利要求1所述的一种抗菌婴儿纸尿裤的制备方法,其特征在于:还包括在吸收体与抗菌透气复合层之间在线施加一活性炭吸味条,具体的施加方法为:以无尘纸为基材,在无尘纸表面在线依次复合高分子吸水树脂、活性炭及卫生纸,高分子吸水树脂及活性炭均为粉末状,分别通过不同的下料装置传输到无尘纸上,再通过喷胶、辊压分切后得到单个的活性炭吸味条,再将所述活性炭吸味条传输复合到吸收体上。
12.根据权利要求10或11所述的一种抗菌婴儿纸尿裤的制备方法,其特征在于:活性炭吸味条在分切前还进行包裹处理,即在其外表面包裹一层无纺布。
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