CN107097495A - 一种一次性口罩面料及其制备方法 - Google Patents

一种一次性口罩面料及其制备方法 Download PDF

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CN107097495A
CN107097495A CN201710294026.5A CN201710294026A CN107097495A CN 107097495 A CN107097495 A CN 107097495A CN 201710294026 A CN201710294026 A CN 201710294026A CN 107097495 A CN107097495 A CN 107097495A
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fabric
breathing mask
disposable breathing
regain
contact
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韩鹏
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Quanzhou Zhongke Patent Technology Standardization Research Institute Co Ltd
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Quanzhou Zhongke Patent Technology Standardization Research Institute Co Ltd
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
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    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
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Abstract

本发明公开了一种一次性口罩面料及其制备方法，包括外层面料和内层面料，外层直接接触空气层；内层面料为多层面料；内层面料为纺织布；内层面料的回潮率从接触口腔层到接触外层面料层逐层递增；接触口腔层为：海藻纤维和维尼纶或者海藻纤维和锦纶混纺的纺织布；接触外层面料层为：铜氨纤维和竹纤维或者铜氨纤维和粘胶纤维或者铜氨纤维和莫代尔纤维混纺的纺织布；制备方法为：将内层面料中的各层按照回潮率递增模式逐层叠层，采用热轧处理工艺粘合，即得内层面料；将外层面料与内层面料叠层，采用超声波缝合机将叠层好的面料边缘缝合，即得一次性口罩面料。本发明制备的一次性口罩面料吸湿透气、抵抗病菌、可有效的过滤PM2.5。

Description

一种一次性口罩面料及其制备方法
技术领域
本发明涉及多层纺织品的生产领域，具体涉及一种一次性口罩面料及其制备方法。
背景技术
近年来，雾霾天气逐渐成为影响我国大部分地区空气质量的主要因素，颗粒物是雾霾主要的大气污染物，其中，直径≤2.5μm的颗粒物，也称细颗粒物PM2.5，因其粒径小、比表面积大，易于富集空气中的有毒有害物质，并可以随着人的呼吸进入体内，甚至进入人体肺泡或血液循环系统，直接导致心血管、呼吸系统等疾病，是城市大气污染物中损害人体健康的最重要元凶。随着我国大部分地区雾霾天气的爆发，PM2.5防护产品变得十分抢手，市场上随即出现大量标有“防雾霾口罩”。
市场在售口罩主要分为一般用普通纱布口罩、棉布和针织布口罩、医用口罩和工业防尘口罩四大类；其中，普通纱布口罩、棉布和针织布口罩作为滤材，因其孔径较大，无法有效过滤微米级以下颗粒，因而难以有效防护细颗粒物；一次性医用口罩的滤材像一面网或筛子，疏水透气性强，对微小带病毒气溶胶或有害微尘的过滤效果显著，但不能有效过滤PM2.5；工业防尘口罩多数是采用无纺布材料，其特点是其滤材是一个开放的结构，由随机指向各个方向的直径可达微米级以下的纤维形成密网状材料，有一定深度，纤维间孔径非常小，颗粒物在这个纵深方向穿过滤材过程中被捕获。
中国专利CN201420224875.5公开了一种防尘口罩滤片，该防尘口罩滤片由多层过滤材质叠加复合而成，依次包括无纺布、核微孔膜、带静电吸附的熔喷纤维布和无纺布。该实用新型的防尘口罩滤片能够同时较好滤除各种粒径的粉尘、细菌和病毒。但是该专利透气性差，对不带电的小粒径粒子的防护性差。
因此，为解决上述问题，需要发明一种吸湿透气、抵抗病菌及有效过滤PM2.5的一次性口罩面料。
发明内容
本发明针对上述问题，提供一种一次性口罩面料及其制备方法。
本发明解决上述问题所采用的技术方案是：一种一次性口罩面料，包括外层面料和内层面料，外层直接接触空气层；内层面料为多层面料；多层为2层～4层；内层面料为纺织布；内层面料的回潮率从接触口腔层到接触外层面料层逐层递增；接触口腔层为：海藻纤维和维尼纶或者海藻纤维和锦纶以质量比1:3～5混纺的纺织布；接触口腔层的回潮率为4.5％～6％；接触外层面料层为：铜氨纤维和竹纤维或者铜氨纤维和粘胶纤维或者铜氨纤维和莫代尔纤维以质量比1:4～6混纺的纺织布；接触外层面料层的回潮率为13％～15％；
其中，无纺布作为外层面料，使口罩面料具有良好的透气性，并且阻止较大颗粒物进入口腔；根据口罩所需环境，可灵活选择内层面料的层数；因内层面料的回潮率从接触口腔层到接触外层面料层逐层递增，当口腔呼出的水汽被接触口腔层面料吸收后，很快会被下一层回潮率更高的面料吸收，最后被接触外层面料层吸收，接触外层面料层中的水汽透过无纺布层排出，以此达到吸湿透气效果；当空气中微小粒子透过外层面料后，部分溶解在接触外层面料层中的水汽中；接触外层面料层中的铜氨纤维具有抗菌性能，抵抗微小粒子携带的细菌；接触口腔层面料中的海藻纤维带有负离子，可吸附PM2.5中带有正电荷的粒子。
进一步地，外层面料的克重为：50g/m2～70g/m2。
进一步地，外层面料为：熔喷无纺布或纺粘无纺布。
进一步地，无纺布的材料为：聚对苯二甲酸乙二醇酯、聚丙烯、聚酰胺、聚氨基甲酸酯中的任一种。
进一步地，内层面料的克重为：80g/m2～120g/m2。
进一步地，内层面料为3层或4层时，接触口腔层与接触外层面料层之间的纺织布的材料为：醋酸纤维、棉纤维、大豆纤维、苎麻纤维中的任一种。
本发明的另一个目的，在于提供一种上述一次性口罩面料的制备方法，包括以下步骤：
步骤S1，将内层面料中的各层按照回潮率递增模式逐层叠层，采用热轧处理工艺在120℃～140℃的温度下粘合，即得内层面料；
步骤S2，将外层面料叠在内层面料回潮率最高的一侧，采用超声波缝合机将叠层好的面料边缘以5m/min～15m/min的速率缝合，即得一次性口罩面料。
进一步地，步骤S1中，热轧处理工艺的轧辊间线压力为：3N/cm～6N/cm。
进一步地，步骤S1中，粘合的速率为：120m/min～150m/min。
进一步地，步骤S2中，缝合的宽度为：1mm～2mm。
本发明的优点是：
1.本发明制备的一次性口罩面料具有吸湿透气、抵抗病菌及防止PM2.5的功效；其中，无纺布作为外层面料，使口罩面料具有良好的透气性，并且阻止较大颗粒物进入口腔；根据口罩所需环境，可灵活选择内层面料的层数；因内层面料的回潮率从接触口腔层到接触外层面料层逐层递增，当口腔呼出的水汽被接触口腔层面料吸收后，很快会被下一层回潮率更高的面料吸收，最后被接触外层面料层吸收，接触外层面料层中的水汽透过无纺布层排出，以此达到吸湿透气效果；当空气中微小粒子透过外层面料后，部分溶解在接触外层面料层中的水汽中；接触外层面料层中的铜氨纤维具有抗菌性能，抵抗微小粒子携带的细菌；接触口腔层面料中的海藻纤维带有负离子，可吸附PM2.5中中带有正电荷的粒子；
2.本发明一次性口罩面料的制备工艺简单、容易操作，得到的一次性口罩面料粘合牢固、强度适中。
具体实施方式
以下对本发明的实施例进行详细说明，但是本发明可以由权利要求限定和覆盖的多种不同方式实施。
实施例1
一种一次性口罩面料，包括外层面料和内层面料，外层直接接触空气层；内层面料为多层面料；多层为2层；内层面料为纺织布；内层面料的回潮率从接触口腔层到接触外层面料层逐层递增；接触口腔层为：海藻纤维和维尼纶以质量比1:3混纺的纺织布；接触口腔层的回潮率为4.5％；接触外层面料层为：铜氨纤维和竹纤维以质量比1:4混纺的纺织布；接触外层面料层的回潮率为13％；其中，外层面料的克重为50g/m2；外层面料为熔喷无纺布；无纺布的材料为聚丙烯；内层面料的克重为80g/m2。
实施例2
一种一次性口罩面料，包括外层面料和内层面料，外层直接接触空气层；内层面料为多层面料；多层为3层；内层面料为纺织布；内层面料的回潮率从接触口腔层到接触外层面料层逐层递增；接触口腔层为：海藻纤维和锦纶以质量比1:4混纺的纺织布；接触口腔层的回潮率为5％；接触外层面料层为：铜氨纤维和莫代尔纤维以质量比1:5混纺的纺织布；接触外层面料层的回潮率为13％；其中，外层面料的克重为60g/m2；外层面料为熔喷无纺布；无纺布的材料为聚酰胺；内层面料的克重为90g/m2；接触口腔层与接触外层面料层之间的纺织布的材料为醋酸纤维。
实施例3
一种一次性口罩面料，包括外层面料和内层面料，外层直接接触空气层；内层面料为多层面料；多层为4层；内层面料为纺织布；内层面料的回潮率从接触口腔层到接触外层面料层逐层递增；接触口腔层为：海藻纤维和维尼纶以质量比1:5混纺的纺织布；接触口腔层的回潮率为5.5％；接触外层面料层为：铜氨纤维和粘胶纤维以质量比1:6混纺的纺织布；接触外层面料层的回潮率为15％；其中，外层面料的克重为70g/m2；外层面料为纺粘无纺布；无纺布的材料为聚对苯二甲酸乙二醇酯；内层面料的克重为100g/m2；接触口腔层与接触外层面料层之间的纺织布的材料依次为：醋酸纤维和棉纤维。
实施例4
一种一次性口罩面料，包括外层面料和内层面料，外层直接接触空气层；内层面料为多层面料；多层为2层；内层面料为纺织布；内层面料的回潮率从接触口腔层到接触外层面料层逐层递增；接触口腔层为：海藻纤维和锦纶以质量比1:3混纺的纺织布；接触口腔层的回潮率为6％；接触外层面料层为：铜氨纤维和竹纤维以质量比1:4混纺的纺织布；接触外层面料层的回潮率为13％；其中，外层面料的克重为55g/m2；外层面料为纺粘无纺布；无纺布的材料为聚氨基甲酸酯；内层面料的克重为110g/m2。
实施例5
一种一次性口罩面料，包括外层面料和内层面料，外层直接接触空气层；内层面料为多层面料；多层为3层；内层面料为纺织布；内层面料的回潮率从接触口腔层到接触外层面料层逐层递增；接触口腔层为：海藻纤维和维尼纶或以质量比1:3.5混纺的纺织布；接触口腔层的回潮率为4.5％；接触外层面料层为铜氨纤维和莫代尔纤维以质量比1:5混纺的纺织布；接触外层面料层的回潮率为14％；其中，外层面料的克重为65g/m2；外层面料为熔喷无纺布；无纺布的材料为聚丙烯；内层面料的克重为120g/m2；接触口腔层与接触外层面料层之间的纺织布的材料为大豆纤维。
实施例6
一种一次性口罩面料，包括外层面料和内层面料，外层直接接触空气层；内层面料为多层面料；多层为4层；内层面料为纺织布；内层面料的回潮率从接触口腔层到接触外层面料层逐层递增；接触口腔层为：海藻纤维和锦纶以质量比1:4.5混纺的纺织布；接触口腔层的回潮率为5.5％；接触外层面料层为：铜氨纤维和粘胶纤维以质量比1:6混纺的纺织布；接触外层面料层的回潮率为15％；其中，外层面料的克重为70g/m2；外层面料为纺粘无纺布；无纺布的材料为聚对苯二甲酸乙二醇酯；内层面料的克重为120g/m2；接触口腔层与接触外层面料层之间的纺织布的材料依次为：棉纤维和苎麻纤维。
实施例7
一种一次性口罩面料的制备方法，包括以下步骤：
步骤S1，将内层面料中的各层按照回潮率递增模式逐层叠层，采用热轧处理工艺在120℃的温度下粘合，即得内层面料；其中，热轧处理工艺的轧辊间线压力为3N/cm；粘合的速率为120m/min；
步骤S2，将外层面料叠在内层面料回潮率最高的一侧，采用超声波缝合机将叠层好的面料边缘以5m/min的速率缝合，即得一次性口罩面料；其中，缝合的宽度为1mm。
实施例8
一种一次性口罩面料的制备方法，包括以下步骤：
步骤S1，将内层面料中的各层按照回潮率递增模式逐层叠层，采用热轧处理工艺在130℃的温度下粘合，即得内层面料；其中，热轧处理工艺的轧辊间线压力为4N/cm；粘合的速率为130m/min；
步骤S2，将外层面料叠在内层面料回潮率最高的一侧，采用超声波缝合机将叠层好的面料边缘以10m/min的速率缝合，即得一次性口罩面料；其中，缝合的宽度为1.5mm。
实施例9
一种一次性口罩面料的制备方法，包括以下步骤：
步骤S1，将内层面料中的各层按照回潮率递增模式逐层叠层，采用热轧处理工艺在140℃的温度下粘合，即得内层面料；其中，热轧处理工艺的轧辊间线压力为6N/cm；粘合的速率为150m/min；
步骤S2，将外层面料叠在内层面料回潮率最高的一侧，采用超声波缝合机将叠层好的面料边缘以15m/min的速率缝合，即得一次性口罩面料；其中，缝合的宽度为2mm。
实验例1
实施例1～9制备的一次性口罩面料作为样品1～9，进行过滤性能测试，测试数据如表1所示。
测试条件：采用GB2626～2006《呼吸防护用品自吸过滤式防颗粒物呼吸》方式，对一次性口罩面料进行过滤效率测试；模拟粒子为Na盐，流量为85L/min。
表1 一次性口罩面料过滤性能测试数据
结果：实施例1～9制备的一次性口罩面料过滤效率为93％～98％。
结论：本发明制备的一次性口罩面料吸湿透气、抵抗病菌、防止PM2.5效率强。
以上仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

1.一种一次性口罩面料，包括外层面料和内层面料，其特征在于，所述外层直接接触空气层；所述内层面料为多层面料；所述多层为2层～4层；所述内层面料为纺织布；所述内层面料的回潮率从接触口腔层到接触外层面料层逐层递增；所述接触口腔层为：海藻纤维和维尼纶或者海藻纤维和锦纶以质量比1:3～5混纺的纺织布；所述接触口腔层的回潮率为4.5％～6％；所述接触外层面料层为：铜氨纤维和竹纤维或者铜氨纤维和粘胶纤维或者铜氨纤维和莫代尔纤维以质量比1:4～6混纺的纺织布；所述接触外层面料层的回潮率为13％～15％。
2.根据权利要求1所述的一次性口罩面料，其特征在于，所述外层面料的克重为：50g/m2～70g/m2。
3.根据权利要求1所述的一次性口罩面料，其特征在于，所述外层面料为：熔喷无纺布或纺粘无纺布。
4.根据权利要求1～3中任一项所述的一次性口罩面料，其特征在于，所述无纺布的材料为：聚对苯二甲酸乙二醇酯、聚丙烯、聚酰胺、聚氨基甲酸酯中的任一种。
5.根据权利要求1所述的一次性口罩面料，其特征在于，所述内层面料的克重为：80g/m2～120g/m2。
6.根据权利要求1或5所述的一次性口罩面料，其特征在于，所述内层面料为3层或4层时，接触口腔层与接触外层面料层之间的纺织布的材料为：醋酸纤维、棉纤维、大豆纤维、苎麻纤维中的任一种。
7.一种根据权利要求1～6中任一项所述的一次性口罩面料的制备方法，其特征在于，包括以下步骤：
步骤S1，将内层面料中的各层按照回潮率递增模式逐层叠层，采用热轧处理工艺在120℃～140℃的温度下粘合，即得所述内层面料；
步骤S2，将外层面料叠在内层面料回潮率最高的一侧，采用超声波缝合机将叠层好的面料边缘以5m/min～15m/min的速率缝合，即得所述一次性口罩面料。
8.根据权利要求7所述的制备方法，其特征在于，步骤S1中，所述热轧处理工艺的轧辊间线压力为：3N/cm～6N/cm。
9.根据权利要求7所述的制备方法，其特征在于，步骤S1中，所述粘合的速率为：120m/min～150m/min。
10.根据权利要求7所述的制备方法，其特征在于，步骤S2中，所述缝合的宽度为：1mm～2mm。
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