CN110965202A - 一种改性牛奶蛋白抑菌纤维无纺布及其制备方法 - Google Patents

一种改性牛奶蛋白抑菌纤维无纺布及其制备方法 Download PDF

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CN110965202A
CN110965202A CN201910945172.9A CN201910945172A CN110965202A CN 110965202 A CN110965202 A CN 110965202A CN 201910945172 A CN201910945172 A CN 201910945172A CN 110965202 A CN110965202 A CN 110965202A
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milk protein
woven fabric
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杨莉莉
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Hengan Fujian Holding Group Co Ltd
Fujian Hengan Household Life Article Co Ltd
Hengan China Hygiene Products Co Ltd
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Fujian Hengan Household Life Article Co Ltd
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Abstract

本发明涉及无纺布领域,尤其涉及的是一种改性牛奶蛋白抑菌纤维无纺布及其制备方法,由1.5~2旦尼尔的PE/PP双组份纤维中添加2~10%的纳米银离子复合牛奶蛋白纤维,通过无纺布热风工艺制成;所述纳米银离子复合牛奶蛋白纤维是牛奶蛋白与纳米银离子在去离子水中振荡、揉合、加热熔喷而成。本发明通过纳米银改性牛奶蛋白纤维,所制备的牛奶蛋白纤维具有良好的抗菌功效,再将纳米银改性的牛奶蛋白纤维添加到PP/PE双组份纤维中,旨在研究开发一种亲肤性好,具有抗菌保健功能,能有效防止尿布疹的材料,并应用于纸尿裤产品的面层无纺布材料。

Description

一种改性牛奶蛋白抑菌纤维无纺布及其制备方法
技术领域
本发明涉及无纺布领域,尤其涉及的是一种改性牛奶蛋白抑菌纤维无纺布及其制备方法。
背景技术
在生活节奏加快的现代社会,纸尿裤成为很多年轻父母的首选,它是一种一次性吸湿用 品,使用更换便捷,大大简化了婴幼儿护理的繁琐。近年来人们的消费观念日益成熟,他们 对纸尿裤产品在安全性能方面提出了更高的要求。新生儿红臀是新生儿常见的疾病,主要由于 新生儿皮肤薄嫩,表皮与真皮间结构不致密,皮肤角质发育不完善,对外界刺激抵抗力差,易受 机械性和化学性刺激所致。目前纸尿裤急需要解决的应该是皮肤问题。现在不少纸尿裤吸湿 透气性尤其是抗菌性差,长时间穿着会使皮肤表面的角质层很容易被刺激物磨损、渗透,最 终使皮肤受损、发炎,引发婴幼儿患上尿布疹。随着非织造材料生产技术的不断革新和应用 领域的不断拓展,研制超柔软、超亲肤型、不过敏的无纺布材料应用于纸尿裤,成为了一项 迫切需要展开的研究课题。
发明内容
本发明的目的在于克服上述不足,提供一种改性牛奶蛋白抑菌纤维无纺布及其制备方法。
为实现上述目的,本发明的技术解决方案是:
一种改性牛奶蛋白抑菌纤维无纺布,由1.5~2旦尼尔的PE/PP双组份纤维中添加2~10% 的纳米银离子复合牛奶蛋白纤维,通过无纺布热风工艺制成;所述纳米银离子复合牛奶蛋白 纤维是牛奶蛋白与纳米银离子在去离子水中振荡、揉合、加热熔喷而成。
优选的,所述纳米银离子粒度≤40纳米。
优选的,所述振荡过程为150~200rmp转速振荡10h。
一种改性牛奶蛋白抑菌纤维无纺布的制备方法,包括如下步骤:
1)纳米银抗菌剂的制备
将质量比为1~5:1~5:1~5的硝酸银、柠檬酸钠、硼氢化钠混合,在常压下50~80℃ 水相中反应30min,过滤,制备得到粒度≤40纳米的抗菌粉;
2)牛奶蛋白纤维的制备
用量筒取500~1000重量份的纯牛奶,将其置于蒸发器中蒸发10~12h,蒸发器温度在 60-70℃,蒸发器中的压力在60~80KPa;10~12h后取出置于锥形瓶中,将锥形瓶放置在离心 机中将大部分脂肪去除,离心机转速设定在1500r/min~2000r/min;离心3~4h后加入100~ 150份氢氧化钠水溶液;氢氧化钠水溶液浓度控制在0.04mol/L~0.05mol/L;最后通过用半透 膜将碱化反应后的乳浊液中的蛋白质分离出来,收集备用;
3)含有纳米银离子的牛奶蛋白纤维的制备
向锥形瓶中加入去离子水,再加入20~30重量份的纳米银离子抗菌粉,放入振荡仪以 150~200rmp转速振荡10h,混合均匀后送入揉合机并加热到50~60℃,经充分混合成特别揉 合流体后即可作为纺丝液;纺丝罐的温度设定为60℃,喷丝头温度控制在50~60℃;将所得 的固化后的长丝在定型过内90℃烘干定型12h,得到纳米银离子复合牛奶蛋白纤维,其中银离 子的有效含量为10%~30%;
4)含有纳米银离子复合牛奶蛋白纤维的PP/PE双组份热风无纺布的制备
选取1.5~2旦的PE/PP双组份纤维,向PE/PP双组份纤维中添加2~10%的纳米银离子复合 牛奶蛋白纤维,通过无纺布热风制备工艺制成包括纳米银离子复合牛奶蛋白纤维的PE/PP双组 份纤维的热风无纺布面层材料。
银材料或离子态银具有一定的抗菌抑菌作用,比如用银质器皿盛放食物可降低食物腐败 速度,用银丝制成纱布包裹皮肤创伤可以防感染等。纳米银就是将粒径做到纳米级的金属银 单质,对大肠杆菌、淋球菌、沙眼衣原体等数十种致病微生物都有强烈的抑制和杀灭作用, 而且不会产生耐药性。纳米银抗菌效果远高于宏观银,一方面是由于其可以释放出银离子, 另一方面是由于其特殊的尺寸效应。
细胞是生命体的基本活动单元,细胞膜不仅是细胞的界膜,还是细胞与外界的信息、物 质交流和能量传递的重要场所,其完整性对细胞正常生理代谢具有重要的意义。纳米银粒子 与细胞膜接触往往会造成细胞膜结构和性质的变化,当纳米银粒径较小(<20nm)时,它可 与细胞膜的组成成分含硫蛋白相互作用,破坏细胞膜结构完整性,使其通透性增加进而丧失 正常的功能,直至细胞死亡。并且带正电荷的纳米银颗粒会通过某些“特殊元素”与大肠杆 菌细胞膜接触,在细胞膜上形成明显的不规则穿孔,造成膜系统结构的变化和退化,使细胞 内容物外渗,从而导致其死亡。因此纳米银可以作为有效的新型抗菌材料。除此之外,纳米 银具有优异的抗菌性能,将纳米银整理到织物上,即可制备抗菌织物,相对于传统的有机抗 菌剂,纳米银抗菌剂具有非迁移性,遇到尿液时,不会发生脱落和迁移,更适合与人体皮肤 直接接触
牛奶蛋白纤维外观呈乳白色,有着真丝般柔和的光泽和爽滑手感。牛奶纤维具有天然抗 菌功效,纤维在服饰上不会对皮肤造成任何过敏反应。牛奶纤维中所含蛋白质成分为人体所 必须的,对人体皮肤有较好的营养和保护作用。
通过采用上述的技术方案,本发明的有益效果是:本发明通过纳米银改性牛奶蛋白纤维, 所制备的牛奶蛋白纤维具有良好的抗菌功效,再将纳米银改性的牛奶蛋白纤维添加到PP/PE 双组份纤维中,旨在研究开发一种亲肤性好,具有抗菌保健功能,能有效防止尿布疹的材料, 并应用于纸尿裤产品的面层无纺布材料。
具体实施方式
以下结合具体实施例来进一步说明本发明。
本发明的一种改性牛奶蛋白抑菌纤维无纺布的制备方法,包括如下步骤:
1)纳米银抗菌剂的制备
将质量比为1~5:1~5:1~5的硝酸银、柠檬酸钠、硼氢化钠混合,在常压下50~80℃ 水相中反应30min,过滤,制备得到粒度≤40纳米的抗菌粉;
2)牛奶蛋白纤维的制备
用量筒取500~1000重量份的纯牛奶,将其置于蒸发器中蒸发10~12h,蒸发器温度在 60-70℃,蒸发器中的压力在60~80KPa;10~12h后取出置于锥形瓶中,将锥形瓶放置在离心 机中将大部分脂肪去除,离心机转速设定在1500r/min~2000r/min;离心3~4h后加入100~ 150份氢氧化钠水溶液;氢氧化钠水溶液浓度控制在0.04mol/L~0.05mol/L;最后通过用半透 膜将碱化反应后的乳浊液中的蛋白质分离出来,收集备用;
3)含有纳米银离子的牛奶蛋白纤维的制备
向锥形瓶中加入去离子水,再加入20~30重量份的纳米银离子抗菌粉,放入振荡仪以 150~200rmp转速振荡10h,混合均匀后送入揉合机并加热到50~60℃,经充分混合成特别揉 合流体后即可作为纺丝液;纺丝罐的温度设定为60℃,喷丝头温度控制在50~60℃;将所得 的固化后的长丝在定型过内90℃烘干定型12h,得到纳米银离子复合牛奶蛋白纤维,其中银离 子的有效含量为10%~30%;
4)含有纳米银离子复合牛奶蛋白纤维的PP/PE双组份热风无纺布的制备
选取1.5~2旦的PE/PP双组份纤维,向PE/PP双组份纤维中添加2~10%的纳米银离子复合 牛奶蛋白纤维,通过无纺布热风制备工艺制成包括纳米银离子复合牛奶蛋白纤维的PE/PP双组 份纤维的热风无纺布面层材料。
无纺布材料应用于在纸尿裤产品的性能研究
纳米银离子复合牛奶蛋白纤维的PP/PE双组份热风无纺布运用于纸尿裤的面层,评估产品 的抗菌等性能。
将所得的纳米银离子复合牛奶蛋白纤维的PP/PE双组份热风无纺布应用于纸尿裤产品的 面层,评估纸尿裤产品的抗菌等性能。
(1)参考国标GB15979-2002_一次性使用卫生用品卫生标准,制备1-2*105cfu/ml菌悬液。 2cm*3cm含纳米银离子复合牛奶蛋白纤维无纺布与100μl菌悬液充分振荡混合后,静置20min 后加入5ml磷酸缓冲盐溶液。然后制备两个稀释度,各取0.5ml做细菌培养(35℃±2℃,48h)。
Figure BDA0002223954040000041
结论:含纳米银离子复合牛奶蛋白纤维无纺布对大肠杆菌,白色念珠菌和金黄色葡萄球 菌有显著的抑制作用
(2)使用含有含纳米银离子复合牛奶蛋白纤维无纺布材料和空白样进行消费者试用调 查,试用对象为易过敏人群,样本数为200份,使用含有氧化石墨烯的热风面层无纺布材料的 过敏率按人数为2%,按片数0.4%,空白样按人数为10%,按片数为4%,过敏率显著降低。
以上所述的,仅为本发明的较佳实施例而已,不能限定本发明实施的范围,凡是依本发 明申请专利范围所作的均等变化与装饰,皆应仍属于本发明涵盖的范围内。

Claims (4)

1.一种改性牛奶蛋白抑菌纤维无纺布,其特征在于:由1.5~2旦尼尔的PE/PP双组份纤维中添加2~10%的纳米银离子复合牛奶蛋白纤维,通过无纺布热风工艺制成;所述纳米银离子复合牛奶蛋白纤维是牛奶蛋白与纳米银离子在去离子水中振荡、揉合、加热熔喷而成。
2.根据权利要求1所述的改性牛奶蛋白抑菌纤维无纺布,其特征在于:所述纳米银粒度≤40纳米。
3.根据权利要求1所述的改性牛奶蛋白抑菌纤维无纺布,其特征在于:所述振荡过程为150~200rmp转速振荡10h。
4.一种改性牛奶蛋白抑菌纤维无纺布的制备方法,其特征在于,包括如下步骤:
1)纳米银抗菌剂的制备
将质量比为1~5:1~5:1~5的硝酸银、柠檬酸钠、硼氢化钠混合,在常压下50~80℃水相中反应30min,过滤,制备得到粒度≤40纳米的抗菌粉;
2)牛奶蛋白纤维的制备
用量筒取500~1000重量份的纯牛奶,将其置于蒸发器中蒸发10~12h,蒸发器温度在60-70℃,蒸发器中的压力在60~80KPa;10~12h后取出置于锥形瓶中,将锥形瓶放置在离心机中将大部分脂肪去除,离心机转速设定在1500r/min~2000r/min;离心3~4h后加入100~150份氢氧化钠水溶液;氢氧化钠水溶液浓度控制在0.04mol/L~0.05mol/L;最后通过用半透膜将碱化反应后的乳浊液中的蛋白质分离出来,收集备用;
3)含有纳米银离子的牛奶蛋白纤维的制备
向锥形瓶中加入去离子水,再加入20~30重量份的纳米银离子抗菌粉,放入振荡仪以150~200rmp转速振荡10h,混合均匀后送入揉合机并加热到50~60℃,经充分混合成特别揉合流体后即可作为纺丝液;纺丝罐的温度设定为60℃,喷丝头温度控制在50~60℃;将所得的固化后的长丝在定型锅90℃烘干定型12h,得到纳米银离子复合牛奶蛋白纤维,其中银离子的有效含量为10%~30%;
4)含有纳米银离子复合牛奶蛋白纤维的PP/PE双组份热风无纺布的制备
选取1.5~2旦的PE/PP双组份纤维,双组分PE/PP份纤维开松后与2~10%的纳米银离子复合牛奶蛋白纤维在多仓混棉机中充分混合均匀后,通过无纺布热风制备工艺制成包括纳米银离子复合牛奶蛋白纤维的PE/PP双组份纤维的热风无纺布面层材料。
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