CN105662730A - 一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤 - Google Patents

一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤 Download PDF

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CN105662730A
CN105662730A CN201610106268.2A CN201610106268A CN105662730A CN 105662730 A CN105662730 A CN 105662730A CN 201610106268 A CN201610106268 A CN 201610106268A CN 105662730 A CN105662730 A CN 105662730A
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刘小辉
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Abstract

本发明公开了一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤,包括主体和用于固定纸尿裤的魔术贴,主体由上到下依次为面层、导流层、高分子聚合物吸水层、不透液PE底膜,所述导流层为微溶无纺布,由羧甲基壳聚糖纤维、壳聚糖纤维和低熔点的ES纤维制备而成,在温度30~37℃、PH为5.0~8.0环境下羧甲基壳聚糖纤维、壳聚糖纤维不同程度溶解,产生微溶状态,具有更高的抗菌性能、吸附重金属微小颗粒性能,同时能透过面层与皮肤接触,产生保健功能,并能有效阻隔高分子聚合物吸水层里面由于尿液产生的细菌透过无纺布反过来侵害人体皮肤。

Description

一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤
技术领域
本发明属于卫生用品技术领域,具体涉及一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤。
背景技术
纸尿裤由于其穿着方便、使用简单,可大大降低护理的劳动强度,倍受父母们的喜爱,但是纸尿裤是一个封闭的环境,当尿液、粪便积聚在纸尿裤中,时间一长就会引起细菌繁殖产生大量氨气等,从而使PH升高,刺激皮肤,导致皮肤疾病,不利于身体健康。
目前,也有一些抑菌性纸尿裤,一般采用中药抑菌,抑菌药物通常需要加入酒精、香精等溶剂进行溶解,防腐剂防止氧化,但是,酒精、香精、防腐剂等物质本身对皮肤有刺激作用且酒精本身易挥发,会导致抑菌性能一定程度上丧失。中国专利号为200820150724.4的专利,提出喷涂甲壳素来抑菌,但是甲壳素本身只能溶于浓酸,不溶于碱及水,因此,抑菌性有限。专利号201110431244的中国专利,提出在吸收层上设置水溶性壳聚糖固体颗粒,遇水溶解,发挥抑菌性能,但是颗粒状的水溶性壳聚糖溶解性能有限,用量比较多,浪费资源,分布不均匀导致抑菌性能差。
壳聚糖含有丰富的氨基和羟基,在一定条件下可以反应得到羧甲基化的壳聚糖,既保留了壳聚糖的优点,又极大地改善了水溶性、抗菌性、吸附性,如何将羧甲基壳聚糖及壳聚糖的抗菌性能运用到纸尿裤中,制备一种吸湿性强、透气性好的高抗菌、高吸附重金属微小颗粒的纸尿裤,是本领域研发人员亟需解决的问题。
发明内容
本发明的目的是提供一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤,针对尿液的特殊环境,羧甲基壳聚糖纤维、壳聚糖纤维不同程度的溶解,产生微溶状态,具有更高的抗菌性能、吸附重金属微小颗粒性能,同时透过面层与皮肤接触,具有很好的保健功能。
本发明的技术方案是:一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤,包括主体和用于固定纸尿裤的魔术贴,主体由上到下依次为面层、导流层、高分子聚合物吸水层、不透液PE底膜,所述导流层为微溶无纺布,所述微溶无纺布由羧甲基壳聚糖纤维、壳聚糖纤维和低熔点的ES纤维制备而成,在温度30~37℃、PH为5.0~8.0环境下羧甲基壳聚糖纤维、壳聚糖纤维不同程度溶解,产生不同程度的微溶状态;所述羧甲基壳聚糖纤维、壳聚糖纤维、ES纤维三种纤维的重量百分比分别为:羧甲基壳聚糖纤维1%-10%,壳聚糖纤维5%-20%,低熔点的ES纤维70%-94%;
进一步的,用于本发明的微溶无纺布的制备工艺,包括以下步骤:
一、羧甲基壳聚糖纤维的制备
(1)将分子量为1×104、脱乙酰度为92%的壳聚糖与异丙醇以1:5的质量比室温下混合均匀,溶胀1~1.5h,然后加入与壳聚糖质量比为1:6、浓度为20ml/L的氢氧化钠,调节PH=9,在45℃下强力搅拌1.5~2h碱化;
(2)然后逐滴加入与氢氧化钠质量比为1:1、浓度为5ml/L的氯乙酸,边滴加边搅拌,滴加过程水浴加热,保持反应体系温度55℃,在1.5h内滴加完毕,然后滴加盐酸,调节PH=7;
(3)离心分离,向上清液中加入3倍量的丙酮沉淀,过滤得到滤饼,粉碎后再用3倍量的无水乙醇冲洗,45℃温度下真空干燥,得到大分子量的羧甲基壳聚糖;
(4)将处理好的羧甲基壳聚糖采用湿法纺丝技术制得羧甲基壳聚糖纤维;
二、羧甲基壳聚糖纤维后处理
(1)将制得的羧甲基壳聚糖纤维在500W微波下处理3~5min,降解分子量,增加水溶性,提高羧甲基壳聚糖纤维抗菌性;
(2)在10℃下,用有机硅季铵盐表面抗菌剂处理上述步骤(1)中得到的羧甲基壳聚糖纤维,提高羧甲基壳聚糖纤维断裂强度和抗菌性能;
三、微溶无纺布的制备
先将羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维进行开松、梳理混纺成纤维网,将纤维网在140℃下通过热风粘合,低熔点的ES纤维在交叉点上熔融,使羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维之间产生粘着,非交叉点的羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维仍保持原来的状态,冷却后制得高抗菌、吸附重金属微小颗粒的新型微溶无纺布。
进一步的,所述面层为棉质、PE网质或者无纺布质,厚度为0.03~0.05mm,所述微溶无纺布厚度为0.1~0.8mm,所述高分子聚合物吸水层由高分子吸水树脂、无纺布、棉复合而成,厚度为2~3mm,面层、导流层、高分子聚合物吸水层、不透液PE底膜边缘粘合在一起。
进一步的,为保证在温度30~37℃、PH为5.0~8.0环境下羧甲基壳聚糖纤维、壳聚糖纤维不同程度溶解,能产生微溶状态,所述羧甲基壳聚糖纤维的制备过程中用紫外线处理,加热均匀,利于羧甲基壳聚糖分子量的降解。
与现有技术相比,本发明优点在于:
(1)采用四层防护结构,快速吸收尿液,防止渗漏,改善传统纸尿裤性能,吸湿性强、透气性好;
(2)本发明的导流层为微溶无纺布,遇到碱性或中性尿液时,微溶无纺布内的羧甲基壳聚糖纤维会微溶,遇到酸性尿液时,微溶无纺布内的羧甲基壳聚糖纤维、壳聚糖纤维同时微溶,在微溶状态下,本发明被溶解的比率很少,本身外观、强度不会发生明显变化,但是具有更高的抗菌性能、吸附重金属微小颗粒性能;同时能透过面层与皮肤接触,产生保健功能,并能有效阻隔高分子聚合物吸水层里面由于尿液产生的细菌透过无纺布反过来侵害人体皮肤;
(3)用于本发明的微溶无纺布的羧甲基壳聚糖纤维在制备过程中采用紫外线处理,降解羧甲基壳聚糖的分子量,溶解性能更好;羧甲基壳聚糖纤维制备后采用微波及表面抗菌剂处理,增加水溶性,提高羧甲基壳聚糖纤维的强度和抗菌性,进而提高本发明的强度、水溶性和抗菌性能。
附图说明
图1是本发明的结构示意图;
图2是本发明的剖面示意图。
1.主体;2.魔术贴;3.面层;4.导流层;5.高分子聚合物吸水层;6.不透液PE底膜。
具体实施方式
下面结合附图及具体实施例对本发明作进一步详细说明。
实施例1
一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤,包括主体1和用于固定纸尿裤的魔术贴2,主体1由上到下依次为面层3、导流层4、高分子聚合物吸水层5、不透液PE底膜6,面层3为棉质,厚度为0.03mm,导流层4为微溶无纺布,厚度为0.1mm,高分子聚合物吸水层5由高分子吸水树脂、无纺布、棉复合而成,厚度为2mm,面层3、导流层4、高分子聚合物吸水层5、不透液PE底膜6边缘粘合在一起;微溶无纺布由质量比为1%的羧甲基壳聚糖纤维、5%的壳聚糖纤维和94%低熔点的ES纤维制备而成,在温度30℃、PH为5.0环境下羧甲基壳聚糖纤维溶解15%、壳聚糖纤维溶解5%。
用于本实施例的高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤的微溶无纺布的制备工艺,包括以下步骤:
一、羧甲基壳聚糖纤维的制备
(1)将分子量为1×104、脱乙酰度为92%的壳聚糖与异丙醇以1:5的质量比室温下混合均匀,溶胀1h,然后加入与壳聚糖质量比为1:6、浓度为20ml/L的氢氧化钠,调节PH=9,在45℃下强力搅拌1.5h碱化;
(2)然后逐滴加入与氢氧化钠质量比为1:1、浓度为5ml/L的氯乙酸,边滴加边搅拌,滴加过程水浴加热,保持反应体系温度55℃,在1.5h内滴加完毕,然后滴加盐酸,调节PH=7;
(3)离心分离,向上清液中加入3倍量的丙酮沉淀,过滤得到滤饼,粉碎后再用3倍量的无水乙醇冲洗,45℃温度下真空干燥,得到O位上取代度为0.6、N位上取代度为0.5的大分子量的羧甲基壳聚糖;
(4)将处理好的羧甲基壳聚糖采用湿法纺丝技术制得羧甲基壳聚糖纤维;
二、羧甲基壳聚糖纤维后处理
(1)将制得的羧甲基壳聚糖纤维在500W微波下处理3min,降解分子量,增加水溶性,提高羧甲基壳聚糖纤维抗菌性;
(2)在10℃下,用有机硅季铵盐表面抗菌剂处理上述步骤(1)中得到的羧甲基壳聚糖纤维,提高羧甲基壳聚糖纤维断裂强度和抗菌性能;
三、微溶无纺布的制备
先将羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维进行开松、梳理混纺成纤维网,将纤维网在140℃下通过热风粘合,低熔点的ES纤维在交叉点上熔融,使羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维之间产生粘着,非交叉点的羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维仍保持原来的状态,冷却后制得高抗菌、吸附重金属微小颗粒的新型微溶无纺布。
为保证在温度30℃、PH为5.0环境下羧甲基壳聚糖纤维溶解15%、壳聚糖纤维溶解5%,能产生微溶状态,所述羧甲基壳聚糖纤维的制备过程中用紫外线处理,加热均匀,利于羧甲基壳聚糖分子量的降解。
实施例2
一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤,与实施例1相同的结构不再赘述,面层3为PE网质,厚度为0.04mm,导流层4为微溶无纺布,厚度为0.4mm,高分子聚合物吸水层5由高分子吸水树脂、无纺布、棉复合而成,厚度为2.5mm,面层3、导流层4、高分子聚合物吸水层5、不透液PE底膜6边缘粘合在一起;微溶无纺布由质量比为5%的羧甲基壳聚糖纤维、10%的壳聚糖纤维和85%低熔点的ES纤维制备而成,在温度35℃、PH为6.5环境下羧甲基壳聚糖纤维溶解18%、壳聚糖纤维溶解3%。
用于本实施例所述的高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤的微溶无纺布的制备工艺,包括以下步骤:
一、羧甲基壳聚糖纤维的制备
(1)将分子量为1×104、脱乙酰度为92%的壳聚糖与异丙醇以1:5的质量比室温下混合均匀,溶胀1.2h,然后加入与壳聚糖质量比为1:6、浓度为20ml/L的氢氧化钠,调节PH=9,在45℃下强力搅拌1.7h碱化;
(2)然后逐滴加入与氢氧化钠质量比为1:1、浓度为5ml/L的氯乙酸,边滴加边搅拌,滴加过程水浴加热,保持反应体系温度55℃,在1.5h内滴加完毕,然后滴加盐酸,调节PH=7;
(3)离心分离,向上清液中加入3倍量的丙酮沉淀,过滤得到滤饼,粉碎后再用3倍量的无水乙醇冲洗,45℃温度下真空干燥,得到O位上取代度为0.7、N位上取代度为0.6的大分子量的羧甲基壳聚糖;
(4)将处理好的羧甲基壳聚糖采用湿法纺丝技术制得羧甲基壳聚糖纤维;
二、羧甲基壳聚糖纤维后处理
(1)将制得的羧甲基壳聚糖纤维在500W微波下处理4min,降解分子量,增加水溶性,提高羧甲基壳聚糖纤维抗菌性;
(2)在10℃下,用有机硅季铵盐表面抗菌剂处理上述步骤(1)中得到的羧甲基壳聚糖纤维,提高羧甲基壳聚糖纤维断裂强度和抗菌性能;
三、微溶无纺布的制备
先将羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维进行开松、梳理混纺成纤维网,将纤维网在140℃下通过热风粘合,低熔点的ES纤维在交叉点上熔融,使羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维之间产生粘着,非交叉点的羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维仍保持原来的状态,冷却后制得高抗菌、吸附重金属微小颗粒的新型微溶无纺布。
为保证在温度35℃、PH为6.5环境下羧甲基壳聚糖纤维溶解18%、壳聚糖纤维溶解3%,产生微溶状态,羧甲基壳聚糖纤维的制备过程中用紫外线处理,加热均匀,利于羧甲基壳聚糖分子量的降解。
实施例3
一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤,与实施例1相同的结构不再赘述,面层3为PE网质,厚度为0.04mm,导流层4为微溶无纺布,厚度为0.6mm,高分子聚合物吸水层5由高分子吸水树脂、无纺布、棉复合而成,厚度为2.6mm,面层3、导流层4、高分子聚合物吸水层5、不透液PE底膜6边缘粘合在一起;微溶无纺布由质量比为8%的羧甲基壳聚糖纤维、15%的壳聚糖纤维和77%低熔点的ES纤维制备而成,在温度36℃、PH为7.5环境下羧甲基壳聚糖纤维溶解20%。
用于本发明所述的高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤的微溶无纺布的制备工艺,包括以下步骤:
一、羧甲基壳聚糖纤维的制备
(1)将分子量为1×104、脱乙酰度为92%的壳聚糖与异丙醇以1:5的质量比室温下混合均匀,溶胀1.5h,然后加入与壳聚糖质量比为1:6、浓度为20ml/L的氢氧化钠,调节PH=9,在45℃下强力搅拌2h碱化;
(2)然后逐滴加入与氢氧化钠质量比为1:1、浓度为5ml/L的氯乙酸,边滴加边搅拌,滴加过程水浴加热,保持反应体系温度55℃,在1.5h内滴加完毕,然后滴加盐酸,调节PH=7;
(3)离心分离,向上清液中加入3倍量的丙酮沉淀,过滤得到滤饼,粉碎后再用3倍量的无水乙醇冲洗,45℃温度下真空干燥,得到O位上取代度为0.8、N位上取代度为0.65的大分子量的羧甲基壳聚糖;
(4)将处理好的羧甲基壳聚糖采用湿法纺丝技术制得羧甲基壳聚糖纤维;
二、羧甲基壳聚糖纤维后处理
(1)将制得的羧甲基壳聚糖纤维在500W微波下处理5min,降解分子量,增加水溶性,提高羧甲基壳聚糖纤维抗菌性;
(2)在10℃下,用有机硅季铵盐表面抗菌剂处理上述步骤(1)中得到的羧甲基壳聚糖纤维,提高羧甲基壳聚糖纤维断裂强度和抗菌性能;
三、微溶无纺布的制备
先将羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维进行开松、梳理混纺成纤维网,将纤维网在140℃下通过热风粘合,低熔点的ES纤维在交叉点上熔融,使羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维之间产生粘着,非交叉点的羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维仍保持原来的状态,冷却后制得高抗菌、吸附重金属微小颗粒的新型微溶无纺布。
为保证让本发明在温度36℃、PH为7.5环境下羧甲基壳聚糖纤维溶解20%,产生微溶状态,所述羧甲基壳聚糖纤维的制备过程中用紫外线处理,加热均匀,制备的羧甲基壳聚糖分子量较小,水溶性增加。
实施例4
一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤,与实施例1相同的结构不再赘述,面层3为无纺布质,厚度为0.05mm,导流层4为微溶无纺布,厚度为0.8mm,高分子聚合物吸水层5由高分子吸水树脂、无纺布、棉复合而成,厚度为3mm,面层3、导流层4、高分子聚合物吸水层5、不透液PE底膜6边缘粘合在一起;微溶无纺布由质量比为10%的羧甲基壳聚糖纤维、20%的壳聚糖纤维和70%低熔点的ES纤维制备而成,在温度37℃、PH为8.0环境下羧甲基壳聚糖纤维溶解19%。
用于本发明所述的高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤的微溶无纺布的制备工艺,包括以下步骤:
一、羧甲基壳聚糖纤维的制备
(1)将分子量为1×104、脱乙酰度为92%的壳聚糖与异丙醇以1:5的质量比室温下混合均匀,溶胀1.5h,然后加入与壳聚糖质量比为1:6、浓度为20ml/L的氢氧化钠,调节PH=9,在45℃下强力搅拌2h碱化;
(2)然后逐滴加入与氢氧化钠质量比为1:1、浓度为5ml/L的氯乙酸,边滴加边搅拌,滴加过程水浴加热,保持反应体系温度55℃,在1.5h内滴加完毕,然后滴加盐酸,调节PH=7;
(3)离心分离,向上清液中加入3倍量的丙酮沉淀,过滤得到滤饼,粉碎后再用3倍量的无水乙醇冲洗,45℃温度下真空干燥,得到O位上取代度为0.8、N位上取代度为0.65的大分子量的羧甲基壳聚糖;
(4)将处理好的羧甲基壳聚糖采用湿法纺丝技术制得羧甲基壳聚糖纤维;
二、羧甲基壳聚糖纤维后处理
(1)将制得的羧甲基壳聚糖纤维在500W微波下处理5min,降解分子量,增加水溶性,提高羧甲基壳聚糖纤维抗菌性;
(2)在10℃下,用有机硅季铵盐表面抗菌剂处理上述步骤(1)中得到的羧甲基壳聚糖纤维,提高羧甲基壳聚糖纤维断裂强度和抗菌性能;
三、微溶无纺布的制备
先将羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维进行开松、梳理混纺成纤维网,将纤维网在140℃下通过热风粘合,低熔点的ES纤维在交叉点上熔融,使羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维之间产生粘着,非交叉点的羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维仍保持原来的状态,冷却后制得高抗菌、吸附重金属微小颗粒的新型微溶无纺布。
为保证让本发明在温度37℃、PH为8.0环境下羧甲基壳聚糖纤维溶解19%,产生微溶状态,所述羧甲基壳聚糖纤维的制备过程中用紫外线处理,加热均匀,制备的羧甲基壳聚糖分子量较小,水溶性增加。
综上所述,本发明主体采用四层防护结构,快速吸收尿液,防止渗漏,改善传统纸尿裤性能,吸湿性强、透气性好;本发明的导流层为微溶无纺布,遇到碱性或中性尿液时,微溶无纺布内的羧甲基壳聚糖纤维会微溶,遇到酸性尿液时,微溶无纺布内的羧甲基壳聚糖纤维、壳聚糖纤维同时微溶,在微溶状态下,本发明被溶解的比率很少,本身外观、强度不会发生明显变化,但是具有更高的抗菌性能、吸附重金属微小颗粒性能;同时能透过面层与皮肤接触,产生保健功能,并能有效阻隔高分子聚合物吸水层里面由于尿液产生的细菌透过无纺布反过来侵害人体皮肤。
上面以举例方式对本发明进行了说明,但本发明不限于上述具体实施例,凡基于本发明所做的任何改动或变型均属于本发明要求保护的范围。

Claims (3)

1.一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤,包括主体和用于固定纸尿裤的魔术贴,主体由上到下依次为面层、导流层、高分子聚合物吸水层、不透液PE底膜,其特征在于:所述导流层为微溶无纺布,该微溶无纺布由羧甲基壳聚糖纤维、壳聚糖纤维和低熔点的ES纤维制备而成,在温度30~37℃、PH为5.0~8.0环境下羧甲基壳聚糖纤维、壳聚糖纤维不同程度溶解,产生不同程度的微溶状态;
所述羧甲基壳聚糖纤维、壳聚糖纤维、ES纤维三种纤维的重量百分比分别为:
羧甲基壳聚糖纤维1%-10%,
壳聚糖纤维5%-20%,
低熔点的ES纤维70%-94%;
所述微溶无纺布的制备工艺,包括以下步骤:
一、羧甲基壳聚糖纤维的制备
(1)将分子量为1×104、脱乙酰度为92%的壳聚糖与异丙醇以1:5的质量比室温下混合均匀,溶胀1~1.5h,然后加入与壳聚糖质量比为1:6、浓度为20ml/L的氢氧化钠,调节PH=9,在45℃下强力搅拌1.5~2h碱化;
(2)然后逐滴加入与氢氧化钠质量比为1:1、浓度为5ml/L的氯乙酸,边滴加边搅拌,滴加过程水浴加热,保持反应体系温度55℃,在1.5h内滴加完毕,然后滴加盐酸,调节PH=7;
(3)离心分离,向上清液中加入3倍量的丙酮沉淀,过滤得到滤饼,粉碎后再用3倍量的无水乙醇冲洗,45℃温度下真空干燥,得到大分子量的羧甲基壳聚糖;
(4)将处理好的羧甲基壳聚糖采用湿法纺丝技术制得羧甲基壳聚糖纤维;
二、羧甲基壳聚糖纤维后处理
(1)将制得的羧甲基壳聚糖纤维在500W微波下处理3~5min,降解分子量,增加水溶性,提高羧甲基壳聚糖纤维抗菌性;
(2)在10℃下,用有机硅季铵盐表面抗菌剂处理上述步骤(1)中得到的羧甲基壳聚糖纤维,提高羧甲基壳聚糖纤维断裂强度和抗菌性能;
三、微溶无纺布的制备
先将羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维进行开松、梳理混纺成纤维网,将纤维网在140℃下通过热风粘合,低熔点的ES纤维在交叉点上熔融,使羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维之间产生粘着,非交叉点的羧甲基壳聚糖纤维、壳聚糖纤维和ES纤维仍保持原来的状态,冷却后制得高抗菌、吸附重金属微小颗粒的新型微溶无纺布。
2.根据权利要求1所述的一种高抗菌、吸附重金属微小颗粒的新型微溶保健功能纸尿裤,其特征在于:所述面层为棉质、PE网质或者无纺布质,厚度为0.03~0.05mm,所述微溶无纺布厚度为0.1~0.8mm,所述高分子聚合物吸水层由高分子吸水树脂、无纺布、棉复合而成,厚度为2~3mm,面层、导流层、高分子聚合物吸水层、不透液PE底膜边缘粘合在一起。
3.根据权利要求1所述的微溶无纺布的制备工艺,其特征在于:为保证在温度30~37℃、PH为5.0~8.0下羧甲基壳聚糖纤维、壳聚糖纤维不同程度溶解,能产生微溶状态,所述羧甲基壳聚糖纤维的制备过程中用紫外线处理。
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