CN111516329A - 一种制式隔离服的制造方法 - Google Patents
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Abstract
本发明公开了一种制式隔离服的制造方法,包括如下步骤:(1)将亲水改性聚丙烯内层纺粘布、纳米二氧化硅改性聚丙烯中层熔喷布和聚氨酯改性聚丙烯母粒外层纺粘布依次铺平经过热轧机热轧压合,再经过卷绕机制成SMS无纺布;(2)将SMS无纺布进行制版、裁剪后送到车间缝制,缝合处均用无纺布热熔胶通过超声波粘合;(3)将缝制好的隔离服放入紫外线消毒窗进行消毒,将隔离服放入灭菌装置内进行灭菌。SMS无纺布包括内层纺粘布、中层熔喷布和外层纺粘布,内层纺粘布具有较好的吸水性,中层熔喷布具有较好的透气性和韧性,外层纺粘布具有较好的防水隔离效果。从而使生产的隔离服透气透湿好、拒液性强、不易破损、亲肤,提升隔离服穿着的舒适感。
Description
技术领域
本发明属于隔离服制造领域,具体涉及一种制式隔离服的制造方法。
背景技术
隔离服是医务人员在接触避免受到血液、体液和其他感染性物质污染也是用于保护患者避免感染的防护用品。隔离服主要的使用地点为医疗卫生机构,而医疗卫生机构通常又是病人聚集的地方,因此这就要求隔离服具有安全防护能力。
现有的隔离服常见有以下几个缺陷:透气、透湿差,拒液性差,容易破损,对皮肤有刺激性等。由于隔离服由非织造工艺制成,因此在强力低、轻薄的同时存在一定的拒水效果,故服装表面孔隙极小,会使人出汗蒸汽无法排出,从而导致上述缺陷。
发明内容
本发明的目的在于提供一种透气透湿好、拒液性强、不易破损、亲肤的隔离服,提升隔离服穿着的舒适感。
为了解决上述技术问题,本发明采用如下技术方案:
一种制式隔离服的制造方法,其特征在于,包括如下步骤:
a.制造SMS无纺布:
(1)使用亲水改性聚丙烯母粒通过纺粘法制得内层纺粘布;
(2)使用纳米二氧化硅改性聚丙烯母粒通过熔喷法制得中层熔喷布;
(3)使用聚氨酯改性聚丙烯母粒通过纺粘法制得外层纺粘布;
(4)将内层纺粘布、中层熔喷布和外层纺粘布依次铺平经过热轧机热轧压合,再经过卷绕机制成SMS无纺布;
b.制造隔离服:
(1)将SMS无纺布进行制版、裁剪后送到车间缝制;
(2)缝合处均用无纺布热熔胶通过超声波粘合;
c.消毒灭菌:
(1)将缝制好的隔离服放入紫外线消毒窗进行消毒;
(2)将隔离服放入灭菌装置内进行灭菌。
SMS无纺布由三层构成,内层纺粘布、中层熔喷布和外层纺粘布,其中内层纺粘布具有较好的吸水性,中层熔喷布具有较好的透气性和韧性,外层纺粘布具有较好的防水隔离效果。从而使生产的隔离服透气透湿好、拒液性强、不易破损、亲肤,提升隔离服穿着的舒适感。
优选的,所述亲水改性聚丙烯母粒的制造方法为:
(1)将纳米碳酸钙和分散剂放入搅拌机中搅拌;
(2)将聚丙烯切片、偶联剂、亲水助剂和搅拌机中的混合物放入共混机中混合挤出切粒,制得亲水改性聚丙烯母粒。
纳米碳酸钙有较好的亲水性,并且能提高聚丙烯纤维的拉伸强度。由于纳米碳酸钙易团聚,先将纳米碳酸钙和分散剂在搅拌机中均匀分散,再将剩余原料放入共混机中共混,提高纳米碳酸钙的分散性。亲水助剂有助于提高聚丙烯纤维的吸水性,常见的亲水助剂有烷基苯磺酸钠和聚乙二醇烷基醚。偶联剂可以为KH550,分散剂可以为正磷酸钠、柠檬酸钾。
优选的,纳米二氧化硅改性聚丙烯母粒的制造方法为:
(1)将纳米二氧化硅放入甲苯溶剂中加入偶联剂,放入反应釜中搅拌反应,反应完毕后取出干燥烘干研磨制得改性纳米二氧化硅;
(2)将聚丙烯切片、改性纳米二氧化硅放入共混机中混合挤出切粒,制得纳米二氧化硅改性聚丙烯母粒。
纳米二氧化硅同样容易聚集,使用湿法改性的纳米二氧化硅可以均匀分散在聚丙烯切片中。经过纳米二氧化硅改性的聚丙烯纤维具有更大的孔径,增加其透气性,同时提高熔喷布的韧性。
优选的,聚氨酯改性聚丙烯母粒的制造方法为:将聚丙烯切片、聚酯型聚氨酯和PP-g-PU放入共混机中混合挤出切粒,制得聚氨酯改性聚丙烯母粒。
聚酯型聚氨酯具有较好的疏水性,PP-g-PU为马来酸酐化聚丙烯与聚氨酯通过自由基反应生成的接枝共聚物,是一种增容剂,可以使聚氨酯和聚丙烯更好地相容共混。聚氨酯改性后的聚丙烯纤维具有更好的防水性能,拒液性强,提高了外层纺粘布的强度。
优选的,聚丙烯切片、纳米碳酸钙、偶联剂、分散剂、亲水助剂的质量份数比为90-100:5-20:1-5:1-3:1-5。
优选的,纳米二氧化硅与偶联剂的质量分数比为100:1-5;所述聚丙烯切片与所述改性纳米二氧化硅的质量分数比为100:0.1-1;所述反应釜中反应时间为1-5h。纳米二氧化硅的含量若太高容易导致熔喷布韧性降低,容易损坏。
优选的,聚丙烯切片、聚酯型聚氨酯和PP-g-PU的质量分数比为100:1-5:0.1-5。
优选的,将内层纺粘布在进行热轧之前放入浸渍液后经过电子辐照改性,改性后过滤干燥。辐照改性可以在内层纺粘布上接枝基团,以达到提高亲水性、亲肤性等目的。
优选的,浸渍液的制备方法为:按质量份数计,100-200甲基硅油和0.5-2乙烯基三乙氧基硅烷在50-70℃混合1-5h。将乙烯基三乙氧基硅烷溶解在甲基硅油中,通过电子辐照将含硅基团接枝在内层纺粘布上,提高内层纺粘布的亲肤性。
优选的,内层纺粘布在浸渍液浸泡1-4h之后在常温下放置10-24h,放入辐照设备,通入氮气排出氧气,γ射线剂量率为5kGy/h。辐照容易产生臭氧,因此需要在惰性气体的保护下进行辐照改性。
由于采用上述技术方案,本发明具有以下有益效果:
SMS无纺布由三层构成,内层纺粘布、中层熔喷布和外层纺粘布,其中内层纺粘布具有较好的吸水性,中层熔喷布具有较好的透气性和韧性,外层纺粘布具有较好的防水隔离效果。从而使制得的隔离服透气透湿好、拒液性强、不易破损、亲肤,提升隔离服穿着的舒适感。具体有益效果为:
1、纳米碳酸钙有较好的亲水性,并且能提高聚丙烯纤维的拉伸强度。由于纳米碳酸钙易团聚,先将纳米碳酸钙和分散剂在搅拌机中均匀分散,再将剩余原料放入共混机中共混,提高纳米碳酸钙的分散性。亲水助剂有助于提高聚丙烯纤维的吸水性。
2、纳米二氧化硅同样容易聚集,使用湿法改性的纳米二氧化硅可以均匀分散在聚丙烯切片中。经过纳米二氧化硅改性的聚丙烯纤维具有更大的孔径,增加其透气性,同时提高熔喷布的韧性。
3、聚酯型聚氨酯具有较好的疏水性,PP-g-PU为马来酸酐化聚丙烯与聚氨酯通过自由基反应生成的接枝共聚物,是一种增容剂,可以使聚氨酯和聚丙烯更好地相容共混。聚氨酯改性后的聚丙烯纤维具有更好的防水性能,拒液性强,提高了外层纺粘布的强度。
4、将乙烯基三乙氧基硅烷溶解在甲基硅油中,通过电子辐照将含硅基团接枝在内层纺粘布上,提高内层纺粘布的亲肤性。
具体实施方式
下面根据实施例对本发明作进一步说明。
一种制式隔离服的制造方法,包括如下步骤:
a.制造SMS无纺布:
(1)使用亲水改性聚丙烯母粒通过纺粘法制得内层纺粘布:
ⅰ.将纳米碳酸钙和分散剂放入搅拌机中搅拌30min;
ⅱ.将聚丙烯切片、偶联剂KH550、亲水助剂烷基苯磺酸钠和搅拌机中的混合物放入共混机中混合2-5h挤出切粒,制得亲水改性聚丙烯母粒;
(2)使用纳米二氧化硅改性聚丙烯母粒通过熔喷法制得中层熔喷布:
ⅰ.将纳米二氧化硅放入甲苯溶剂中加入偶联剂,放入反应釜中搅拌反应1-3h,反应完毕后取出干燥烘干研磨制得改性纳米二氧化硅;
ⅱ.将聚丙烯切片、改性纳米二氧化硅放入共混机中混合2-5h挤出切粒,制得纳米二氧化硅改性聚丙烯母粒;
(3)使用聚氨酯改性聚丙烯母粒通过纺粘法制得外层纺粘布:将聚丙烯切片、聚酯型聚氨酯和PP-g-PU放入共混机中混合2-5h挤出切粒,制得聚氨酯改性聚丙烯母粒;
(4)辐照改性:
ⅰ.制备浸渍液:按质量份数计,100-200甲基硅油和0.5-2乙烯基三乙氧基硅烷在50-70℃混合1-5h;
ⅱ.内层纺粘布在浸渍液浸泡1-4h之后在常温下放置10-24h,放入辐照设备,通入氮气排出氧气,γ射线剂量率为5kGy/h;
(5)将内层纺粘布、中层熔喷布和外层纺粘布依次铺平经过热轧机热轧压合,再经过卷绕机制成SMS无纺布;
b.制造隔离服:
(1)将SMS无纺布进行制版、裁剪后送到车间缝制;
(2)缝合处均用无纺布热熔胶通过超声波粘合;
c.消毒灭菌:
(1)将缝制好的隔离服放入紫外线消毒窗进行消毒;
(2)将隔离服放入灭菌装置内进行灭菌。
SMS无纺布由三层构成,内层纺粘布、中层熔喷布和外层纺粘布,其中内层纺粘布具有较好的吸水性,中层熔喷布具有较好的透气性和韧性,外层纺粘布具有较好的防水隔离效果。从而使制得的隔离服透气透湿好、拒液性强、不易破损、亲肤,提升隔离服穿着的舒适感。
纳米碳酸钙有较好的亲水性,并且能提高聚丙烯纤维的拉伸强度。由于纳米碳酸钙易团聚,先将纳米碳酸钙和分散剂在搅拌机中均匀分散,再将剩余原料放入共混机中共混,提高纳米碳酸钙的分散性。亲水助剂有助于提高聚丙烯纤维的吸水性,常见的亲水助剂有烷基苯磺酸钠和聚乙二醇烷基醚。偶联剂可以为KH550,分散剂可以为正磷酸钠、柠檬酸钾。
纳米二氧化硅同样容易聚集,使用湿法改性的纳米二氧化硅可以均匀分散在聚丙烯切片中。经过纳米二氧化硅改性的聚丙烯纤维具有更大的孔径,增加其透气性,同时提高熔喷布的韧性。
聚酯型聚氨酯具有较好的疏水性,PP-g-PU为马来酸酐化聚丙烯与聚氨酯通过自由基反应生成的接枝共聚物,是一种增容剂,可以使聚氨酯和聚丙烯更好地相容共混。聚氨酯改性后的聚丙烯纤维具有更好的防水性能,拒液性强,提高了外层纺粘布的强度。
实施例1-5
使用上述步骤制备隔离服,原料质量比如表1-表4所示。
表1:内层纺粘布的原料质量份数比。
聚丙烯切片 | 纳米碳酸钙 | 偶联剂 | 分散剂 | 亲水助剂 | |
实施例1 | 90 | 5 | 1 | 1 | 1 |
实施例2 | 90 | 10 | 2 | 1.5 | 2 |
实施例3 | 95 | 15 | 3 | 2 | 3 |
实施例4 | 100 | 20 | 4 | 2.5 | 4 |
实施例5 | 100 | 20 | 5 | 3 | 5 |
表2:中层熔喷布的原料质量份数比。
纳米二氧化硅:偶联剂 | 聚丙烯切片:纳米二氧化硅 | |
实施例1 | 100:1 | 100:0.1 |
实施例2 | 100:2 | 100:0.2 |
实施例3 | 100:3 | 100:0.3 |
实施例4 | 100:4 | 100:0.4 |
实施例5 | 100:5 | 100:0.5 |
表3:外层纺粘布的原料质量份数比。
表4:浸渍液的原料质量份数比。
甲基硅油 | 乙烯基三乙氧基硅烷 | |
实施例1 | 100 | 0.5 |
实施例2 | 120 | 1 |
实施例3 | 150 | 1.5 |
实施例4 | 180 | 2 |
实施例5 | 200 | 2 |
将生产的隔离服根据GB/T 4744-2013测试外层的拒液性能,根据GB/T 12704.1-2009测试透湿性,根据GB/T 5453-1997测试透气性,根据GB 19082-2009测试机械性能。测试结果如表5所示。
表5:实施例1-5测试结果。
以上仅为本发明的具体实施例,但本发明的技术特征并不局限于此。任何以本发明为基础,为解决基本相同的技术问题,实现基本相同的技术效果,所作出地简单变化、等同替换或者修饰等,皆涵盖于本发明的保护范围之中。
Claims (10)
1.一种制式隔离服的制造方法,其特征在于,包括如下步骤:
a.制造SMS无纺布:
(1)使用亲水改性聚丙烯母粒通过纺粘法制得内层纺粘布;
(2)使用纳米二氧化硅改性聚丙烯母粒通过熔喷法制得中层熔喷布;
(3)使用聚氨酯改性聚丙烯母粒通过纺粘法制得外层纺粘布;
(4)将内层纺粘布、中层熔喷布和外层纺粘布依次铺平经过热轧机热轧压合,再经过卷绕机制成SMS无纺布;
b.制造隔离服:
(1)将SMS无纺布进行制版、裁剪后送到车间缝制;
(2)缝合处均用无纺布热熔胶通过超声波粘合;
c.消毒灭菌:
(1)将缝制好的隔离服放入紫外线消毒窗进行消毒;
(2)将隔离服放入灭菌装置内进行灭菌。
2.根据权利要求1所述的一种制式隔离服的制造方法,其特征在于:所述亲水改性聚丙烯母粒的制造方法为:
(1)将纳米碳酸钙和分散剂放入搅拌机中搅拌;
(2)将聚丙烯切片、偶联剂、亲水助剂和搅拌机中的混合物放入共混机中混合挤出切粒,制得亲水改性聚丙烯母粒。
3.根据权利要求1所述的一种制式隔离服的制造方法,其特征在于:所述纳米二氧化硅改性聚丙烯母粒的制造方法为:
(1)将纳米二氧化硅放入甲苯溶剂中加入偶联剂,放入反应釜中搅拌反应,反应完毕后取出干燥烘干研磨制得改性纳米二氧化硅;
(2)将聚丙烯切片、改性纳米二氧化硅放入共混机中混合挤出切粒,制得纳米二氧化硅改性聚丙烯母粒。
4.根据权利要求1所述的一种制式隔离服的制造方法,其特征在于:所述聚氨酯改性聚丙烯母粒的制造方法为:将聚丙烯切片、聚酯型聚氨酯和PP-g-PU放入共混机中混合挤出切粒,制得聚氨酯改性聚丙烯母粒。
5.根据权利要求2所述的一种制式隔离服的制造方法,其特征在于:所述聚丙烯切片、纳米碳酸钙、偶联剂、分散剂、亲水助剂的质量份数比为90-100:5-20:1-5:1-3:1-5。
6.根据权利要求3所述的一种制式隔离服的制造方法,其特征在于:所述纳米二氧化硅与偶联剂的质量分数比为100:1-5;所述聚丙烯切片与所述改性纳米二氧化硅的质量分数比为100:0.1-1;所述反应釜中反应时间为1-5h。
7.根据权利要求4所述的一种制式隔离服的制造方法,其特征在于:所述聚丙烯切片、聚酯型聚氨酯和PP-g-PU的质量分数比为100:1-5:0.1-5。
8.根据权利要求1所述的一种制式隔离服的制造方法,其特征在于:将内层纺粘布在进行热轧之前放入浸渍液后经过电子辐照改性,改性后过滤干燥。
9.根据权利要求8所述的一种制式隔离服的制造方法,其特征在于:所述浸渍液的制备方法为:按质量份数计,100-200甲基硅油和0.5-2乙烯基三乙氧基硅烷在50-70℃混合1-5h。
10.根据权利要求8所述的一种制式隔离服的制造方法,其特征在于:所述内层纺粘布在浸渍液浸泡1-4h之后在常温下放置10-24h,放入辐照设备,通入氮气排出氧气,γ射线剂量率为5kGy/h。
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