CN110735326B - A kind of silver mask cloth and preparation method thereof - Google Patents
A kind of silver mask cloth and preparation method thereofDownload PDFInfo
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及化妆品技术领域，特别是涉及一种银面膜布及其制备方法。The invention relates to the technical field of cosmetics, in particular to a silver mask cloth and a preparation method thereof.
背景技术Background technique
面膜是护肤品中的一个类别，是美容保养品的一种载体。通过覆盖在脸部，面膜中的水分及其他小分子的有效成分渗入表皮的角质层，从而实现补水、美白、抗衰老、平衡油脂等功效。面膜的形式主要有泥膏型、撕拉型、冻胶型、湿纸巾型四种。其中泥膏型含较多高岭土，防腐剂、矿物质含量较高；撕剥型面膜主要成分是高分子胶、水和酒精，是利用面膜和皮肤的充分接触和黏合，通过撕拉将皮肤上的黑头、老化角质等剥离下来，很容易造成皮肤松弛、毛孔粗大等问题；冻胶型面膜主要成分是高分子胶、多元醇类、还加入一些碱剂及表面活性剂制成，会破坏皮肤天然屏障；湿纸巾型面膜材质主要有蚕丝、全棉、涤纶、混纺、天丝、生物纤维等，有些材料加工过程中加入漂白剂等成分，长期使用会对健康造成威胁。Mask is a category of skin care products and a carrier of beauty care products. By covering the face, the water in the mask and other active ingredients of small molecules penetrate into the stratum corneum of the epidermis, so as to achieve the effects of moisturizing, whitening, anti-aging, and balancing oil. There are mainly four types of masks: mud type, tear type, jelly type, and wet tissue type. Among them, the mud paste type contains more kaolin, and the content of preservatives and minerals is high; the main components of the peel-off type mask are polymer glue, water and alcohol. The blackheads, aging keratin, etc. are peeled off, and it is easy to cause problems such as skin relaxation and large pores; the main components of the jelly-type mask are polymer glue, polyols, and some alkali agents and surfactants are added, which will damage the skin. Natural barrier; wet tissue type facial masks are mainly made of silk, cotton, polyester, blended, tencel, bio-fiber, etc. Some materials are processed with bleach and other ingredients, and long-term use will pose a threat to health.
但是，众所周知，面膜最佳的使用频率是一周两到三次。因为传统面膜的护肤方式是通过面部与膜布中的精华液与水分直接接触，在隔绝空气的环境下，对肌肤从表层开始进保湿与滋养。但是面部的肌肤有自己的肌肤屏障系统，过于频繁的使用面膜，会过度软化肌肤本身拥有的屏障保护，造成肌肤损伤；同时也可能导致对面部肌肤本有水分的倒吸，使得肌肤反而更干燥，带来更多的肌肤问题。因此，目前的面膜不适宜高频率、长时间使用。However, it is well known that the optimal frequency of using the mask is two to three times a week. Because the traditional skin care method of the mask is to directly contact the water with the essence in the face and the mask cloth, in an environment isolated from the air, the skin is moisturized and nourished from the surface layer. However, the skin of the face has its own skin barrier system. Using the mask too frequently will soften the barrier protection of the skin itself and cause skin damage. At the same time, it may also lead to the absorption of the original moisture of the facial skin, making the skin drier. , bring more skin problems. Therefore, the current mask is not suitable for high-frequency and long-term use.
银离子具有杀菌的作用，可有效提高护肤品的滋润渗透功效，利于肌肤对营养物质的吸收，中国专利(申请号CN206548844U)公开了一种银纤维超导面膜，但该专利采用的是银纤维与天然纤维混纺布层，银的含量较低，电子传导作用较差，因此，提供一种银含量高的含银面膜具有重要意义。Silver ions have the effect of sterilization, which can effectively improve the moisturizing and penetrating effect of skin care products, which is beneficial to the absorption of nutrients by the skin. Chinese patent (application number CN206548844U) discloses a silver fiber superconducting mask, but the patent uses silver fiber The cloth layer blended with natural fibers has a low silver content and poor electron conduction. Therefore, it is of great significance to provide a silver-containing mask with a high silver content.
发明内容SUMMARY OF THE INVENTION
本发明的目的是提供一种银面膜布及其制备方法，以解决上述现有技术存在的问题。The purpose of the present invention is to provide a kind of silver mask cloth and preparation method thereof, to solve the problems existing in the above-mentioned prior art.
为实现上述目的，本发明提供了如下方案：For achieving the above object, the present invention provides following scheme:
本发明提供了一种银面膜布的制备方法，包括以下步骤：The invention provides a preparation method of a silver mask cloth, comprising the following steps:
(1)预处理混纺布：用脂肪酶溶液处理混纺布锦纶/氨纶面膜布；(1) Pretreatment of blended fabric: treatment of blended nylon/spandex mask cloth with lipase solution;
(2)预处理壳聚糖：用冰醋酸改性壳聚糖；(2) Pretreatment of chitosan: Modified chitosan with glacial acetic acid;
(3)制备纳米银分散液：将AgNO3溶液分散于改性后的壳聚糖溶液中，得到纳米银分散液；(3 ) Preparation of nano-silver dispersion: the AgNO solution is dispersed in the modified chitosan solution to obtain nano-silver dispersion;
(4)制备镀银锦纶/氨纶面膜布：将步骤(1)的预处理混纺布浸渍于纳米银分散液中，得到具有活性中心的面膜布，在其上喷洒还原糖溶液，然后将其浸渍于银氨水溶液中；(4) Preparation of silver-plated nylon/spandex mask cloth: dipping the pretreated blended cloth in step (1) into nano-silver dispersion to obtain a mask cloth with active centers, spray reducing sugar solution on it, and then dipping it In silver ammonia solution;
(5)镀银锦纶/氨纶面膜布后处理：将脂肪酸、乙醇和水混合，得到混合液，并将所述混合液喷于制备的镀银锦纶/氨纶面膜布表面并烘干。(5) Post-treatment of silver-plated nylon/spandex mask cloth: mixing fatty acid, ethanol and water to obtain a mixed solution, and spraying the mixed solution on the surface of the prepared silver-plated nylon/spandex mask cloth and drying.
进一步的，所述步骤具体包括：Further, the steps specifically include:
(1)预处理混纺布：配制脂肪酶溶液，将混纺布锦纶/氨纶面膜布放入配制好的脂肪酶溶液中，在30℃～50℃下反应10～20min，反应完成后升温到80℃，取出锦纶/氨纶面膜布清洗，得到预处理的锦纶/氨纶面膜布；对混纺布的预处理过程，使酰胺基发生变化，避免后续处理过程中由于锦纶与弹性纤维收缩，得到最终尺寸并保证尺寸的稳定性；(1) Pretreatment of blended fabric: prepare lipase solution, put blended nylon/spandex mask cloth into the prepared lipase solution, react at 30℃～50℃ for 10～20min, and heat up to 80℃ after the reaction is completed , take out the nylon/spandex mask cloth and wash it to obtain the pretreated nylon/spandex mask cloth; the pretreatment process of the blended fabric will change the amide group to avoid the shrinkage of the nylon and elastic fibers in the subsequent processing process, and obtain the final size and guarantee dimensional stability;
(2)预处理壳聚糖：将壳聚糖溶于pH为4的缓冲溶液中，加入冰醋酸，以避免壳聚糖中还原糖由于在pH高于6时产生沉淀，制备成0.5～1.0wt％的壳聚糖溶液，在0.5～1.0wt％的壳聚糖溶液中加入缓冲溶液搅拌15min，用孔径为40-100μm坩埚式过滤器过滤，得到壳聚糖溶液，待用；(2) Pretreatment of chitosan: Dissolve chitosan in a buffer solution with a pH of 4, add glacial acetic acid to avoid precipitation of reducing sugar in chitosan when the pH is higher than 6, and prepare it to 0.5-1.0 wt % chitosan solution, add buffer solution to 0.5-1.0 wt % chitosan solution and stir for 15 minutes, filter with a crucible filter with a pore size of 40-100 μm to obtain a chitosan solution, which is ready for use;
(3)制备纳米银分散液：将10～30mmol/L的AgNO3溶液与步骤(2)中的壳聚糖溶液混合，得到混合液，混合液首先在密闭条件下20～30℃搅拌10～15min，形成活性前驱物种，再在温度70～90℃下反应10～15h，得到纳米银分散液，所述纳米银分散液在1500rpm的转速下仍保持稳定，证明所述纳米银分散液具备良好的稳定性，在此过程中，CS(壳聚糖)的羟基、氨基与Ag+发生配位结合，再在高温下，Ag+转化成Ag活性中心，形成稳定的纳米银分散液；(3 ) Preparation of nano-silver dispersion: Mix 10-30 mmol/L AgNO3 solution with the chitosan solution in step (2) to obtain a mixed solution. The mixed solution is first stirred at 20-30°C for 10-10 minutes under airtight conditions. 15min to form an active precursor species, and then react at a temperature of 70 to 90 ° C for 10 to 15 hours to obtain a nano-silver dispersion. The nano-silver dispersion remains stable at a rotational speed of 1500 rpm, which proves that the nano-silver dispersion has good performance. In this process, the hydroxyl and amino groups of CS (chitosan) coordinate with Ag+ , and then at high temperature, Ag+ is converted into Ag active center to form a stable nano-silver dispersion;
(4)制备镀银锦纶/氨纶面膜布：将步骤(1)得到的预处理的锦纶/氨纶面膜布浸渍在步骤(3)得到的纳米银分散液中，在温度60～80℃的条件下浸渍10～15min后取出，用蒸馏水清洗，得到具有活性中心的面膜布，此过程中，面膜布表面的氨基可与纳米银分散液中纳米Ag作用并与未反应的Ag+配位结合，同时壳聚糖也与混纺布中的-NH2等活性基团作用，这是提升银活性中心与增强其与混纺布牢固结合的关键因素，利用喷涂法将浓度为1.0～2.0g/L的还原糖溶液喷于具有活性中心的面膜布上，然后将其浸入60～80mmol/L银氨水溶液中，在25～35℃条件下，反应20～30min，得到镀银锦纶/氨纶面膜布；(4) Preparation of silver-plated nylon/spandex mask cloth: immersing the pretreated nylon/spandex mask cloth obtained in step (1) in the nano-silver dispersion obtained in step (3), at a temperature of 60-80 °C After soaking for 10-15min, take it out, wash it with distilled water, and obtain a mask cloth with an active center. During this process, the amino groups on the surface of the mask cloth can interact with the nano-Ag in the nano-silver dispersion and coordinate with the unreacted Ag+ + , and at the same time Chitosan also interacts with active groups such as -NH2 in the blended fabric, which is the key factor to enhance the silver active center and enhance its firm bond with the blended fabric. The spraying method is used to reduce the concentration of 1.0 ~ 2.0g/L. The sugar solution is sprayed on the mask cloth with an active center, and then immersed in a 60-80 mmol/L silver ammonia aqueous solution, and reacted for 20-30 minutes under the condition of 25-35 ℃ to obtain a silver-plated nylon/spandex mask cloth;
(5)镀银锦纶/氨纶面膜布后处理：将脂肪酸、乙醇和水混合，得到混合液，所述混合液中脂肪酸质量百分比占3～5wt％，乙醇80～85％，水10～17％，并将所述混合液喷于制备的镀银锦纶/氨纶面膜布表面并烘干。(5) Post-treatment of silver-plated nylon/spandex mask cloth: mixing fatty acid, ethanol and water to obtain a mixed solution, in which the mass percentage of fatty acid accounts for 3-5wt%, ethanol 80-85%, water 10-17% , and the mixed solution was sprayed on the surface of the prepared silver-plated nylon/spandex mask cloth and dried.
进一步的，步骤(1)中锦纶/氨纶面膜布中锦纶与氨纶的质量比例(80％～90％):(10％～20％)。Further, in step (1), the mass ratio of nylon and spandex in the nylon/spandex mask cloth (80%-90%): (10%-20%).
进一步的，步骤(1)中脂肪酶溶液中脂肪酶占的质量百分比为0.1～0.2％。Further, in step (1), the mass percentage of lipase in the lipase solution is 0.1-0.2%.
进一步的，步骤(1)中面膜布与脂肪酶溶液的浴比为1:10～1:20(kg布：L液体体积)。Further, in step (1), the bath ratio of the mask cloth to the lipase solution is 1:10-1:20 (kg cloth:L liquid volume).
进一步的，所述壳聚糖为70％～85％的中脱乙酰度壳聚糖。Further, the chitosan is 70%-85% chitosan with a moderate degree of deacetylation.
进一步的，步骤(2)中所述缓冲溶液为0.1M的醋酸-醋酸钠缓冲溶液。Further, the buffer solution in step (2) is a 0.1M acetic acid-sodium acetate buffer solution.
进一步的，步骤(2)中壳聚糖和缓冲溶液的料液比为1g:90mL。Further, the solid-liquid ratio of chitosan and buffer solution in step (2) is 1 g: 90 mL.
进一步的，步骤(2)中冰醋酸的加入量与壳聚糖的质量比为0.30～0.34:1。Further, in step (2), the mass ratio of the added amount of glacial acetic acid to the chitosan is 0.30-0.34:1.
进一步的，步骤(3)中AgNO3溶液与壳聚糖溶液的体积比为0.3～0.5。Further, in step (3), the volume ratio of the AgNO3 solution to the chitosan solution is 0.3-0.5.
进一步的，步骤(4)中所述还原糖溶液为葡萄糖溶液或者蔗糖溶液，每块面膜布上喷洒还原糖溶液2～4ml。Further, the reducing sugar solution in step (4) is a glucose solution or a sucrose solution, and 2-4 ml of the reducing sugar solution is sprayed on each mask cloth.
本发明还提供了一种利用所述的制备方法制备的银面膜布。The present invention also provides a silver mask cloth prepared by the preparation method.
本发明首先采用脂肪酶溶液对基布进行处理，去除基布表面的油污，确保后续反应的正常进行，然后进行热处理使酰胺基发生变化，避免后续处理过程中由于锦纶与弹性纤维收缩，得到适宜制备面膜的尺寸并保证尺寸的稳定性。同时，反应条件温和，酰胺基发生变化使后续的银粒子、壳聚糖与酰胺基之间有一定的作用力，提高结合牢度。In the present invention, lipase solution is used to first treat the base fabric to remove oil stains on the surface of the base fabric, so as to ensure the normal progress of the subsequent reaction, and then heat treatment is performed to change the amide group, so as to avoid the shrinkage of nylon and elastic fibers in the subsequent treatment process, and obtain suitable The size of the mask is prepared and dimensional stability is assured. At the same time, the reaction conditions are mild, and the change of the amide group makes the subsequent silver particles, chitosan and the amide group have a certain force, which improves the bonding fastness.
本发明以锦纶/氨纶面膜布作为面膜布的基布，与其它种类的基布相比，对碱性溶液的耐受性更差，因此，通过纳米银分散液处理锦纶/氨纶面膜布，在其表面形成活性中心，然后在其表面吸附葡萄糖或者蔗糖等还原糖溶液，再在碱性的镀银溶液中快速沉积银层，从而避免了碱性液体对基布的伤害，保证了基布的强度和韧性。In the present invention, nylon/spandex mask cloth is used as the base cloth of the mask cloth, and compared with other types of base cloth, the resistance to alkaline solution is worse. Therefore, the nylon/spandex mask cloth is treated with nano-silver dispersion. An active center is formed on its surface, and then a reducing sugar solution such as glucose or sucrose is adsorbed on its surface, and then a silver layer is quickly deposited in an alkaline silver plating solution, thereby avoiding the damage of the alkaline liquid to the base fabric and ensuring the base fabric's quality. strength and toughness.
本发明利用银纳米分散液在基布表面首先形成由生物高分子和纳米银形成的催化活性中心的薄膜，保证了后续银层的连续形成，并确保银层与面膜基布的结合牢度，以达到较高耐水洗牢度的性能，保证多次重复利用，采用本发明提供的银面膜布制备成的银面膜耐水洗色牢度4-5级，可重复利用3个月左右。In the invention, the silver nano-dispersion liquid is used to first form a catalytically active center film formed by biopolymers and nano-silver on the surface of the base cloth, which ensures the continuous formation of the subsequent silver layer, and ensures the bonding fastness of the silver layer and the mask base cloth. In order to achieve higher washing fastness performance and ensure multiple reuse, the silver mask prepared by using the silver mask cloth provided by the invention has a color fastness of 4-5 to washing, and can be reused for about 3 months.
本发明采用的银纤维面膜布通过Rohs(出口欧美)报告，安全、放心。The silver fiber mask cloth used in the present invention is reported by Rohs (exported to Europe and the United States), which is safe and secure.
采用本发明提供的银面膜布制备成的银面膜轻薄服帖，利于营养物质和水分的吸收，利用其物理导电性能，可以加速面部微循环，促进细胞代谢的同时帮助吸收水分，直达肌底，15-20分钟后银膜表面微干后取下。涂敷凝胶层内含保湿因子与营养素(美容剂)，可根据不同的客户需求，加入不同的营养素。The silver facial mask prepared by using the silver facial mask cloth provided by the present invention is light, thin and compliant, which is beneficial to the absorption of nutrients and water, and can accelerate the microcirculation of the face by using its physical conductivity, promote cell metabolism and help absorb water, and reach the bottom of the muscle. 15 -After 20 minutes, the surface of the silver film is slightly dry and then removed. The coated gel layer contains moisturizing factors and nutrients (beauty agents), and different nutrients can be added according to different customer needs.
当采用本发明提供的银面膜布制备成的银面膜与面部肌肤接触时，产生生物电电磁场，加速脸部微循环，疏通毛囊皮脂腺导管，疏导水分直达肌底，能促进营养成分的吸收，能提高营养成分吸收率，普通面膜纸吸收率30％左右，本发明的银面膜营养成分的吸收率高达90％，可辅助护肤品水分与营养深度导入肌肤。When the silver mask prepared by using the silver mask cloth provided by the present invention is in contact with the facial skin, a bioelectric electromagnetic field is generated, the microcirculation of the face is accelerated, the ducts of the hair follicles and sebaceous glands are dredged, the water can be dredged directly to the bottom of the muscle, the absorption of nutrients can be promoted, and the The absorption rate of nutrients is improved, the absorption rate of ordinary mask paper is about 30%, and the absorption rate of nutrients of the silver mask of the present invention is as high as 90%, which can assist skin care products to deeply introduce moisture and nutrients into the skin.
因为传统面膜的护肤方式是通过面部与膜布中的精华液与水分直接接触，在隔绝空气的环境下，对肌肤从表层开始进保湿与滋养。但是面部的肌肤有自己的肌肤屏障系统，过于频繁的使用面膜，会过度软化肌肤本身拥有的屏障保护，造成肌肤损伤；同时也可能导致对面部肌肤本有水分的倒吸，使得肌肤反而更干燥，带来更多的肌肤问题。而本发明的银面膜注导式营养和水分补给方式可深层导入被皮肤吸收，因此不存在营养和水分倒吸的状况，可以天天使用。Because the traditional skin care method of the mask is to directly contact the water with the essence in the face and the mask cloth, in an environment isolated from the air, the skin is moisturized and nourished from the surface layer. However, the skin of the face has its own skin barrier system. Using the mask too frequently will soften the barrier protection of the skin itself and cause skin damage. At the same time, it may also lead to the absorption of the original moisture of the facial skin, making the skin drier. , bring more skin problems. However, the infusion type nutrition and moisture replenishment method of the silver mask of the present invention can be deeply introduced and absorbed by the skin, so there is no condition of sucking back nutrients and moisture, and it can be used every day.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative labor.
图1为本发明的银面膜布的实物图；Fig. 1 is the real picture of silver mask cloth of the present invention;
图2为利用本发明的银面膜布制备的面膜的实物图。Fig. 2 is the real picture of the facial mask prepared by utilizing the silver facial mask cloth of the present invention.
具体实施方式Detailed ways
现详细说明本发明的多种示例性实施方式，该详细说明不应认为是对本发明的限制，而应理解为是对本发明的某些方面、特性和实施方案的更详细的描述。Various exemplary embodiments of the present invention will now be described in detail, which detailed description should not be construed as a limitation of the invention, but rather as a more detailed description of certain aspects, features, and embodiments of the invention.
应理解本发明中所述的术语仅仅是为描述特别的实施方式，并非用于限制本发明。另外，对于本发明中的数值范围，应理解为还具体公开了该范围的上限和下限之间的每个中间值。在任何陈述值或陈述范围内的中间值以及任何其他陈述值或在所述范围内的中间值之间的每个较小的范围也包括在本发明内。这些较小范围的上限和下限可独立地包括或排除在范围内。It should be understood that the terms described in the present invention are only used to describe particular embodiments, and are not used to limit the present invention. Additionally, for numerical ranges in the present disclosure, it should be understood that each intervening value between the upper and lower limits of the range is also specifically disclosed. Every smaller range between any stated value or intervening value in a stated range and any other stated value or intervening value in that stated range is also encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
除非另有说明，否则本文使用的所有技术和科学术语具有本发明所述领域的常规技术人员通常理解的相同含义。虽然本发明仅描述了优选的方法和材料，但是在本发明的实施或测试中也可以使用与本文所述相似或等同的任何方法和材料。本说明书中提到的所有文献通过引用并入，用以公开和描述与所述文献相关的方法和/或材料。在与任何并入的文献冲突时，以本说明书的内容为准。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention relates. Although only the preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can also be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference for the purpose of disclosing and describing the methods and/or materials in connection with which the documents are referred. In the event of conflict with any incorporated document, the contents of this specification shall control.
在不背离本发明的范围或精神的情况下，可对本发明说明书的具体实施方式做多种改进和变化，这对本领域技术人员而言是显而易见的。由本发明的说明书得到的其他实施方式对技术人员而言是显而易见得的。本申请说明书和实施例仅是示例性的。It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present invention without departing from the scope or spirit of the invention. Other embodiments will be apparent to those skilled in the art from the description of the present invention. The specification and examples of the present application are exemplary only.
关于本文中所使用的“包含”、“包括”、“具有”、“含有”等等，均为开放性的用语，即意指包含但不限于。As used herein, "comprising," "including," "having," "containing," and the like, are open-ended terms, meaning including but not limited to.
本发明所述脂肪酶购自于SigmaAldrich。The lipase of the present invention was purchased from SigmaAldrich.
实施例1Example 1
(1)预处理混纺布：混纺布锦纶/氨纶面膜布中锦纶与氨纶的质量比例80％:20％，配制脂肪酶溶液，脂肪酶溶液中脂肪酶的质量分数为0.1％，将混纺布锦纶/氨纶面膜布放入配制好的脂肪酶溶液中，浴比：1kg:10L,在30℃下反应10min，反应完成后升温到80℃，取出锦纶/氨纶面膜布清洗，得到预处理的锦纶/氨纶面膜布；(1) Pretreatment blended fabric: the mass ratio of nylon and spandex in the blended nylon/spandex mask cloth is 80%: 20%, and a lipase solution is prepared. The mass fraction of lipase in the lipase solution is 0.1%. /Spandex mask cloth is put into the prepared lipase solution, liquor ratio: 1kg:10L, react at 30°C for 10min, after the reaction is completed, the temperature is raised to 80°C, take out the nylon/spandex mask cloth for cleaning, and obtain the pretreated nylon/ Spandex mask cloth;
(2)预处理壳聚糖：将1.00g壳聚糖溶于90mLpH为4的醋酸-醋酸钠缓冲溶液中，再加入0.32g冰醋酸，以避免壳聚糖中还原糖由于在pH高于6时产生沉淀，制备成1.0wt％的壳聚糖溶液，在1.0wt％的壳聚糖溶液中加入缓冲溶液搅拌15min，用孔径为40μm坩埚式过滤器过滤，得到壳聚糖溶液，待用；(2) Pretreatment of chitosan: Dissolve 1.00 g of chitosan in 90 mL of acetic acid-sodium acetate buffer solution with a pH of 4, and then add 0.32 g of glacial acetic acid to avoid reducing sugar in chitosan due to its pH higher than 6 Precipitation occurred during the 1.0 wt% chitosan solution, adding a buffer solution to the 1.0 wt% chitosan solution, stirring for 15 min, and filtering with a crucible filter with a pore size of 40 μm to obtain a chitosan solution, which is ready for use;
(3)制备纳米银分散液：将10mmol/L的AgNO3溶液与步骤(2)中的壳聚糖溶液混合，得到混合液，二者体积比为0.3：1，混合液首先在密闭条件下20℃搅拌10min，形成活性前驱物种，再在温度70℃下反应10h，得到纳米银分散液，所述纳米银分散液在1500rpm的转速下仍保持稳定；(3 ) Preparation of nano-silver dispersion: mix 10 mmol/L AgNO3 solution with the chitosan solution in step (2) to obtain a mixed solution, the volume ratio of the two is 0.3:1, and the mixed solution is first sealed under airtight conditions. Stir at 20°C for 10min to form active precursor species, and then react at 70°C for 10h to obtain a nano-silver dispersion, which remains stable at a rotational speed of 1500rpm;
(4)制备镀银锦纶/氨纶面膜布：将步骤(1)得到的预处理的锦纶/氨纶面膜布浸渍在步骤(3)得到的纳米银分散液中，在温度60℃的条件下浸渍10min后取出，用蒸馏水清洗，得到具有活性中心的面膜布，此过程中，面膜布表面的氨基可与纳米银分散液中纳米Ag作用并与未反应的Ag+配位结合，同时壳聚糖也与混纺布中的-NH2等活性基团作用，这是提升银活性中心与增强其与混纺布牢固结合的关键因素，利用喷涂法将浓度为1.0/L的葡萄糖溶液2mL喷于具有活性中心的面膜布上，然后将其浸入15mL 60mmol/L银氨水溶液中，在25℃条件下，反应20min，得到镀银锦纶/氨纶面膜布；(4) Preparation of silver-plated nylon/spandex mask cloth: immerse the pretreated nylon/spandex mask cloth obtained in step (1) in the nano-silver dispersion obtained in step (3), and soak it for 10 minutes at a temperature of 60°C Then take it out and wash it with distilled water to obtain a mask cloth with an active center. During this process, the amino groups on the surface of the mask cloth can interact with the nano-Ag in the nano-silver dispersion and coordinate with the unreacted Ag+ , and the chitosan also It interacts with active groups such as -NH2 in the blended fabric, which is the key factor to enhance the silver active center and enhance its firm bond with the blended fabric. Use the spray method to spray 2 mL of glucose solution with a concentration of 1.0/L on the active center. on the mask cloth, then immersed it in 15mL 60mmol/L silver ammonia solution, and reacted for 20min at 25°C to obtain silver-plated nylon/spandex mask cloth;
(5)镀银锦纶/氨纶面膜布后处理：将脂肪酸、乙醇和水混合，得到混合液，所述混合液中脂肪酸质量百分比占3wt％，乙醇80wt％，水17wt％，并将所述混合液喷于制备的镀银锦纶/氨纶面膜布表面并烘干，即可。(5) Post-treatment of silver-plated nylon/spandex mask cloth: mixing fatty acid, ethanol and water to obtain a mixed solution, in which the mass percentage of fatty acid accounts for 3wt%, ethanol 80wt%, water 17wt%, and the mixed solution The liquid is sprayed on the surface of the prepared silver-plated nylon/spandex mask cloth and dried.
实施例2Example 2
(1)预处理混纺布：混纺布锦纶/氨纶面膜布中锦纶与氨纶的质量比例90％:10％，配制脂肪酶溶液，脂肪酶溶液中脂肪酶的质量分数为0.1％，将混纺布锦纶/氨纶面膜布放入配制好的脂肪酶溶液中，浴比：1kg:20L,在40℃下反应10min，反应完成后升温到80℃，取出锦纶/氨纶面膜布清洗，得到预处理的锦纶/氨纶面膜布；(1) Pretreated blended fabric: the mass ratio of nylon and spandex in the blended nylon/spandex mask cloth is 90%: 10%, and a lipase solution is prepared. The mass fraction of lipase in the lipase solution is 0.1%. /Spandex mask cloth is put into the prepared lipase solution, liquor ratio: 1kg:20L, react at 40°C for 10min, after the reaction is completed, the temperature is raised to 80°C, take out the nylon/spandex mask cloth for cleaning, and obtain the pretreated nylon/ Spandex mask cloth;
(2)预处理壳聚糖：将1.00g壳聚糖溶于90mLpH为4的醋酸-醋酸钠缓冲溶液中，再加入0.32g冰醋酸，以避免壳聚糖中还原糖由于在pH高于6时产生沉淀，制备成1.0wt％的壳聚糖溶液，在1.0wt％的壳聚糖溶液中加入缓冲溶液搅拌15min，用孔径为50μm坩埚式过滤器过滤，得到壳聚糖溶液，待用；(2) Pretreatment of chitosan: Dissolve 1.00 g of chitosan in 90 mL of acetic acid-sodium acetate buffer solution with a pH of 4, and then add 0.32 g of glacial acetic acid to avoid reducing sugar in chitosan due to its pH higher than 6 Precipitation occurs during the 1.0 wt% chitosan solution, adding a buffer solution to the 1.0 wt% chitosan solution and stirring for 15 min, and filtering with a 50 μm pore size crucible filter to obtain a chitosan solution, which is ready for use;
(3)制备纳米银分散液：将20mmol/L的AgNO3溶液与步骤(2)中的壳聚糖溶液混合，得到混合液，二者体积比为0.4：1，混合液首先在密闭条件下25℃搅拌10min，形成活性前驱物种，再在温度80℃下反应10h，得到纳米银分散液，所述纳米银分散液在1500rpm的转速下仍保持稳定；(3 ) Preparation of nano-silver dispersion: mix 20 mmol/L AgNO3 solution with the chitosan solution in step (2) to obtain a mixed solution, the volume ratio of the two is 0.4:1, and the mixed solution is first placed under airtight conditions. Stir at 25°C for 10min to form active precursor species, and then react at 80°C for 10h to obtain a nano-silver dispersion, which remains stable at a rotational speed of 1500rpm;
(4)制备镀银锦纶/氨纶面膜布：将步骤(1)得到的预处理的锦纶/氨纶面膜布浸渍在步骤(3)得到的纳米银分散液中，在温度70℃的条件下浸渍10min后取出，用蒸馏水清洗，得到具有活性中心的面膜布，此过程中，面膜布表面的氨基可与纳米银分散液中纳米Ag作用并与未反应的Ag+配位结合，同时壳聚糖也与混纺布中的-NH2等活性基团作用，这是提升银活性中心与增强其与混纺布牢固结合的关键因素，利用喷涂法将浓度为2.0/L的葡萄糖溶液3mL喷于具有活性中心的面膜布上，然后将其浸入20mL 70mmol/L银氨水溶液中，在30℃条件下，反应20min，得到镀银锦纶/氨纶面膜布；(4) Preparation of silver-plated nylon/spandex mask cloth: immerse the pretreated nylon/spandex mask cloth obtained in step (1) in the nano-silver dispersion obtained in step (3), and immerse it for 10 minutes at a temperature of 70°C Then take it out and wash it with distilled water to obtain a mask cloth with an active center. During this process, the amino groups on the surface of the mask cloth can interact with the nano-Ag in the nano-silver dispersion and coordinate with the unreacted Ag+ , and the chitosan also It interacts with active groups such as -NH2 in the blended fabric, which is the key factor to enhance the silver active center and enhance its firm bond with the blended fabric. Use the spray method to spray 3 mL of glucose solution with a concentration of 2.0/L on the active center. on the mask cloth, then immersed it in 20mL of 70mmol/L silver ammonia solution, and reacted for 20min at 30°C to obtain silver-plated nylon/spandex mask cloth;
(5)镀银锦纶/氨纶面膜布后处理：将脂肪酸、乙醇和水混合，得到混合液，所述混合液中脂肪酸质量百分比占4wt％，乙醇82wt％，水14wt％，并将所述混合液喷于制备的镀银锦纶/氨纶面膜布表面并烘干,即可。(5) Post-treatment of silver-plated nylon/spandex mask cloth: mix fatty acid, ethanol and water to obtain a mixed solution, in which the mass percentage of fatty acid accounts for 4wt%, ethanol 82wt%, water 14wt%, and the mixed solution The liquid is sprayed on the surface of the prepared silver-plated nylon/spandex mask cloth and dried.
实施例3Example 3
(1)预处理混纺布：混纺布锦纶/氨纶面膜布中锦纶与氨纶的质量比例90％:10％，配制脂肪酶溶液，脂肪酶溶液中脂肪酶的质量分数为0.2％，将混纺布锦纶/氨纶面膜布放入配制好的脂肪酶溶液中，浴比：1kg:15L,在50℃下反应20min，反应完成后升温到80℃，取出锦纶/氨纶面膜布清洗，得到预处理的锦纶/氨纶面膜布；(1) Pretreatment blended fabric: the mass ratio of nylon and spandex in the blended nylon/spandex mask cloth is 90%: 10%, and a lipase solution is prepared. The mass fraction of lipase in the lipase solution is 0.2%. /Spandex mask cloth is put into the prepared lipase solution, liquor ratio: 1kg:15L, react at 50°C for 20min, after the reaction is completed, the temperature is raised to 80°C, take out the nylon/spandex mask cloth for cleaning, and obtain the pretreated nylon/ Spandex mask cloth;
(2)预处理壳聚糖：将1.00g壳聚糖溶于90mLpH为4的醋酸-醋酸钠缓冲溶液中，再加入0.32g冰醋酸，以避免壳聚糖中还原糖由于在pH高于6时产生沉淀，制备成1.0wt％的壳聚糖溶液，在1.0wt％的壳聚糖溶液中加入缓冲溶液搅拌15min，用孔径为80μm坩埚式过滤器过滤，得到壳聚糖溶液，待用；(2) Pretreatment of chitosan: Dissolve 1.00 g of chitosan in 90 mL of acetic acid-sodium acetate buffer solution with a pH of 4, and then add 0.32 g of glacial acetic acid to avoid reducing sugar in chitosan due to its pH higher than 6 Precipitation occurs during the 1.0 wt% chitosan solution, adding a buffer solution to the 1.0 wt% chitosan solution and stirring for 15 min, and filtering with a crucible filter with a pore size of 80 μm to obtain a chitosan solution, which is ready for use;
(3)制备纳米银分散液：将30mmol/L的AgNO3溶液与步骤(2)中的壳聚糖溶液混合，得到混合液，二者体积比为0.5：1，混合液首先在密闭条件下30℃搅拌15min，形成活性前驱物种，再在温度80℃下反应15h，得到纳米银分散液，所述纳米银分散液在1500rpm的转速下仍保持稳定；(3) Preparation of nano-silver dispersion: mix30 mmol/L AgNO3 solution with the chitosan solution in step (2) to obtain a mixed solution, the volume ratio of the two is 0.5:1, and the mixed solution is first placed under airtight conditions. Stir at 30°C for 15min to form active precursor species, and then react at 80°C for 15h to obtain a nano-silver dispersion, which remains stable at a rotational speed of 1500rpm;
(4)制备镀银锦纶/氨纶面膜布：将步骤(1)得到的预处理的锦纶/氨纶面膜布浸渍在步骤(3)得到的纳米银分散液中，在温度80℃的条件下浸渍10min后取出，用蒸馏水清洗，得到具有活性中心的面膜布，此过程中，面膜布表面的氨基可与纳米银分散液中纳米Ag作用并与未反应的Ag+配位结合，同时壳聚糖也与混纺布中的-NH2等活性基团作用，这是提升银活性中心与增强其与混纺布牢固结合的关键因素，利用喷涂法将浓度为2.0/L的蔗糖溶液4mL喷于具有活性中心的面膜布上，然后将其浸入20mL 80mmol/L银氨水溶液中，在35℃条件下，反应30min，得到镀银锦纶/氨纶面膜布；(4) Preparation of silver-plated nylon/spandex mask cloth: immerse the pretreated nylon/spandex mask cloth obtained in step (1) in the nano-silver dispersion obtained in step (3), and soak it for 10 minutes at a temperature of 80°C Then take it out and wash it with distilled water to obtain a mask cloth with an active center. During this process, the amino groups on the surface of the mask cloth can interact with the nano-Ag in the nano-silver dispersion and coordinate with the unreacted Ag+ , and the chitosan also It interacts with active groups such as -NH2 in the blended fabric, which is the key factor to enhance the silver active center and enhance its firm bond with the blended fabric. Spray 4 mL of sucrose solution with a concentration of 2.0/L on the active center by spraying method. Then, immersed it in 20mL 80mmol/L silver ammonia solution, and reacted for 30min at 35℃ to obtain silver-plated nylon/spandex mask cloth;
(5)镀银锦纶/氨纶面膜布后处理：将脂肪酸、乙醇和水混合，得到混合液，所述混合液中脂肪酸质量百分比占5wt％，乙醇85wt％，水10wt％，并将所述混合液喷于制备的镀银锦纶/氨纶面膜布表面并烘干。(5) Post-treatment of silver-plated nylon/spandex mask cloth: mixing fatty acid, ethanol and water to obtain a mixed solution, in which the mass percentage of fatty acid accounts for 5wt%, ethanol 85wt%, water 10wt%, and the mixed solution The liquid was sprayed on the surface of the prepared silver-plated nylon/spandex mask cloth and dried.
实施例4Example 4
(1)预处理混纺布：混纺布锦纶/氨纶面膜布中锦纶与氨纶的质量比例85％:15％，配制脂肪酶溶液，脂肪酶溶液中脂肪酶的质量分数为0.2％，将混纺布锦纶/氨纶面膜布放入配制好的脂肪酶溶液中，浴比：1kg:20L,在50℃下反应15min，反应完成后升温到80℃，取出锦纶/氨纶面膜布清洗，得到预处理的锦纶/氨纶面膜布；(1) Pretreatment blended fabric: the mass ratio of nylon and spandex in the blended nylon/spandex mask cloth is 85%: 15%, and a lipase solution is prepared. The mass fraction of lipase in the lipase solution is 0.2%. /Spandex mask cloth is put into the prepared lipase solution, liquor ratio: 1kg:20L, react at 50°C for 15min, after the reaction is completed, the temperature is raised to 80°C, take out the nylon/spandex mask cloth for cleaning, and obtain the pretreated nylon/ Spandex mask cloth;
(2)预处理壳聚糖：将1.00g壳聚糖溶于90mLpH为4的醋酸-醋酸钠缓冲溶液中，再加入0.32g冰醋酸，以避免壳聚糖中还原糖由于在pH高于6时产生沉淀，制备成1.0wt％的壳聚糖溶液，在1.0wt％的壳聚糖溶液中加入缓冲溶液搅拌15min，用孔径为100μm坩埚式过滤器过滤，得到壳聚糖溶液，待用；(2) Pretreatment of chitosan: Dissolve 1.00 g of chitosan in 90 mL of acetic acid-sodium acetate buffer solution with a pH of 4, and then add 0.32 g of glacial acetic acid to avoid reducing sugar in chitosan due to its pH higher than 6 Precipitation occurs during the 1.0 wt% chitosan solution, adding a buffer solution to the 1.0 wt% chitosan solution, stirring for 15 min, and filtering with a crucible filter with a pore size of 100 μm to obtain a chitosan solution, which is ready for use;
(3)制备纳米银分散液：将25mmol/L的AgNO3溶液与步骤(2)中的壳聚糖溶液混合，得到混合液，二者体积比为0.3：1，混合液首先在密闭条件下30℃搅拌15min，形成活性前驱物种，再在温度75℃下反应15h，得到纳米银分散液，所述纳米银分散液在1500rpm的转速下仍保持稳定；(3 ) Preparation of nano-silver dispersion: Mix 25mmol/L AgNO3 solution with the chitosan solution in step (2) to obtain a mixed solution, the volume ratio of the two is 0.3:1, and the mixed solution is first sealed under airtight conditions. Stir at 30°C for 15min to form active precursor species, and then react at 75°C for 15h to obtain a nano-silver dispersion, which remains stable at a rotational speed of 1500rpm;
(4)制备镀银锦纶/氨纶面膜布：将步骤(1)得到的预处理的锦纶/氨纶面膜布浸渍在步骤(3)得到的纳米银分散液中，在温度70℃的条件下浸渍15min后取出，用蒸馏水清洗，得到具有活性中心的面膜布，此过程中，面膜布表面的氨基可与纳米银分散液中纳米Ag作用并与未反应的Ag+配位结合，同时壳聚糖也与混纺布中的-NH2等活性基团作用，这是提升银活性中心与增强其与混纺布牢固结合的关键因素，利用喷涂法将浓度为1.0/L的蔗糖溶液3mL喷于具有活性中心的面膜布上，然后将其浸入20mL 60mmol/L银氨水溶液中，在35℃条件下，反应25min，得到镀银锦纶/氨纶面膜布；(4) Preparation of silver-plated nylon/spandex mask cloth: immerse the pretreated nylon/spandex mask cloth obtained in step (1) in the nano-silver dispersion obtained in step (3), and soak it for 15 minutes at a temperature of 70°C Then take it out and wash it with distilled water to obtain a mask cloth with an active center. During this process, the amino groups on the surface of the mask cloth can interact with the nano-Ag in the nano-silver dispersion and coordinate with the unreacted Ag+ , and the chitosan also It interacts with active groups such as -NH2 in the blended fabric, which is the key factor to enhance the silver active center and enhance its firm bond with the blended fabric. Spray 3 mL of sucrose solution with a concentration of 1.0/L on the active center by spraying method. Then, immersed in 20mL 60mmol/L silver ammonia solution, reacted for 25min at 35°C to obtain silver-plated nylon/spandex mask cloth;
(5)镀银锦纶/氨纶面膜布后处理：将脂肪酸、乙醇和水混合，得到混合液，所述混合液中脂肪酸质量百分比占5wt％，乙醇80wt％，水15wt％，并将所述混合液喷于制备的镀银锦纶/氨纶面膜布表面并烘干。(5) Post-treatment of silver-plated nylon/spandex mask cloth: mix fatty acid, ethanol and water to obtain a mixed solution, in which the mass percentage of fatty acid accounts for 5wt%, ethanol 80wt%, water 15wt%, and the mixed solution The liquid was sprayed on the surface of the prepared silver-plated nylon/spandex mask cloth and dried.
实施例5Example 5
(1)预处理混纺布：混纺布锦纶/氨纶面膜布中锦纶与氨纶的质量比例80％:20％，配制脂肪酶溶液，脂肪酶溶液中脂肪酶的质量分数为0.2％，将混纺布锦纶/氨纶面膜布放入配制好的脂肪酶溶液中，浴比：1kg:20L,在45℃下反应15min，反应完成后升温到80℃，取出锦纶/氨纶面膜布清洗，得到预处理的锦纶/氨纶面膜布；(1) Pretreatment blended fabric: The mass ratio of nylon and spandex in the blended nylon/spandex mask cloth is 80%: 20%, and a lipase solution is prepared. The mass fraction of lipase in the lipase solution is 0.2%. /Spandex mask cloth is put into the prepared lipase solution, liquor ratio: 1kg:20L, react at 45°C for 15min, after the reaction is completed, the temperature is raised to 80°C, take out the nylon/spandex mask cloth and wash to obtain the pretreated nylon/ Spandex mask cloth;
(2)预处理壳聚糖：将1.00g壳聚糖溶于90mLpH为4的醋酸-醋酸钠缓冲溶液中，再加入0.32g冰醋酸，以避免壳聚糖中还原糖由于在pH高于6时产生沉淀，制备成1.0wt％的壳聚糖溶液，在1.0wt％的壳聚糖溶液中加入缓冲溶液搅拌15min，用孔径为90μm坩埚式过滤器过滤，得到壳聚糖溶液，待用；(2) Pretreatment of chitosan: Dissolve 1.00 g of chitosan in 90 mL of acetic acid-sodium acetate buffer solution with a pH of 4, and then add 0.32 g of glacial acetic acid to avoid reducing sugar in chitosan due to its pH higher than 6 Precipitation occurs during the 1.0 wt% chitosan solution, adding a buffer solution to the 1.0 wt% chitosan solution, stirring for 15 min, and filtering with a crucible filter with a pore size of 90 μm to obtain a chitosan solution, which is ready for use;
(3)制备纳米银分散液：将25mmol/L的AgNO3溶液与步骤(2)中的壳聚糖溶液混合，得到混合液，二者体积比为0.5：1，混合液首先在密闭条件下25℃搅拌15min，形成活性前驱物种，再在温度70℃下反应15h，得到纳米银分散液，所述纳米银分散液在1500rpm的转速下仍保持稳定；(3 ) Preparation of nano-silver dispersion: mix 25mmol/L AgNO3 solution with the chitosan solution in step (2) to obtain a mixed solution, the volume ratio of the two is 0.5:1, and the mixed solution is first sealed under airtight conditions. Stir at 25°C for 15min to form active precursor species, and then react at 70°C for 15h to obtain a nano-silver dispersion, which remains stable at a rotational speed of 1500rpm;
(4)制备镀银锦纶/氨纶面膜布：将步骤(1)得到的预处理的锦纶/氨纶面膜布浸渍在步骤(3)得到的纳米银分散液中，在温度70℃的条件下浸渍10min后取出，用蒸馏水清洗，得到具有活性中心的面膜布，此过程中，面膜布表面的氨基可与纳米银分散液中纳米Ag作用并与未反应的Ag+配位结合，同时壳聚糖也与混纺布中的-NH2等活性基团作用，这是提升银活性中心与增强其与混纺布牢固结合的关键因素，利用喷涂法将浓度为1.0/L的蔗糖溶液2mL喷于具有活性中心的面膜布上，然后将其浸入15mL 60mmol/L银氨水溶液中，在30℃条件下，反应20min，得到镀银锦纶/氨纶面膜布；(4) Preparation of silver-plated nylon/spandex mask cloth: immerse the pretreated nylon/spandex mask cloth obtained in step (1) in the nano-silver dispersion obtained in step (3), and immerse it for 10 minutes at a temperature of 70°C Then take it out and wash it with distilled water to obtain a mask cloth with an active center. During this process, the amino groups on the surface of the mask cloth can interact with the nano-Ag in the nano-silver dispersion and coordinate with the unreacted Ag+ , and the chitosan also It interacts with the active groups such as -NH2 in the blended fabric, which is the key factor to enhance the silver active center and enhance its firm bond with the blended fabric. Use the spray method to spray 2 mL of sucrose solution with a concentration of 1.0/L on the active center. Then, immersed it in 15mL 60mmol/L silver ammonia solution, and reacted for 20min at 30°C to obtain silver-plated nylon/spandex mask cloth;
(5)镀银锦纶/氨纶面膜布后处理：将脂肪酸、乙醇和水混合，得到混合液，所述混合液中脂肪酸质量百分比占5wt％，乙醇85wt％，水10wt％，并将所述混合液喷于制备的镀银锦纶/氨纶面膜布表面并烘干。(5) Post-treatment of silver-plated nylon/spandex mask cloth: mixing fatty acid, ethanol and water to obtain a mixed solution, in which the mass percentage of fatty acid accounts for 5wt%, ethanol 85wt%, water 10wt%, and the mixed solution The liquid was sprayed on the surface of the prepared silver-plated nylon/spandex mask cloth and dried.
对比例1Comparative Example 1
制备方法同实施例1，不同之处仅在于未对混纺布进行预处理，进行常规处理。The preparation method is the same as that in Example 1, except that the blended fabric is not pretreated and conventionally treated.
对比例2Comparative Example 2
制备方法同实施例1，不同之处仅在于没有预处理壳聚糖过程，在纳米银分散液为常规的纳米银分散液。The preparation method is the same as that in Example 1, except that there is no pretreatment process of chitosan, and the nano-silver dispersion is a conventional nano-silver dispersion.
对比例3Comparative Example 3
同实施例1，不同之处仅在于未对预处理的锦纶/氨纶面膜布进行纳米银分散液活化，直接镀银。The same as Example 1, the difference is only that the pretreated nylon/spandex mask cloth is not activated by nano-silver dispersion, and silver is directly plated.
对实施例1-5以及对比例1-3的银面膜布进行检测，检测依据为IEC 62321-4:2013；IEC 62321-5:2013；IEC 62321-6:2015；IEC 62321-7:2017；IEC 62321-8:2017，判定依据为欧盟RoHS指令2011/65/EU(RoHS 2.0)及其修订指令(EU)2015/863，检测环境：温度，(22～28)℃；湿度，(45～75)％RH，检测结果见表1。The silver mask cloths of Examples 1-5 and Comparative Examples 1-3 were detected, and the detection basis was IEC 62321-4:2013; IEC 62321-5:2013; IEC 62321-6:2015; IEC 62321-7:2017; IEC 62321-8:2017, based on EU RoHS Directive 2011/65/EU (RoHS 2.0) and its revised directive (EU) 2015/863, testing environment: temperature, (22～28)℃; humidity, (45～ 75)%RH, the test results are shown in Table 1.
表1Table 1
注：1)1mg/kg＝1ppm＝0.0001％；Note: 1) 1mg/kg=1ppm=0.0001%;
2)MDL＝检测下限；2) MDL = detection lower limit;
3)ND＝未检出(＜MDL)。3) ND = not detected (<MDL).
由表1结果可知，本发明的银面膜布通过RoHS(出口欧美)的检测，可放心使用。It can be seen from the results in Table 1 that the silver mask cloth of the present invention has passed the test of RoHS (exported to Europe and the United States) and can be used with confidence.
对实施例1-5以及对比例1-3的银面膜布是抗菌性能进行检测，检测依据为GB/T21510-2008，FZ/T 73023-2006，试验时间为24h，其中，实施例1-5以及对比例1-3中：白色念球菌0h空白对照样菌落数4.50×104cfu/mL，24h空白对照样菌落数4.40×104cfu/mL；须毛癣菌0h空白对照样菌落数3.60×104cfu/mL，24h空白对照样菌落数3.50×104cfu/mL；金黄色葡萄球菌0h空白对照样菌落数4.30×104cfu/mL，24h空白对照样菌落数4.20×104cfu/mL；大肠杆菌0h空白对照样菌落数4.60×104cfu/mL，24h空白对照样菌落数4.40×104cfu/mL；白色念珠菌0h对照样平均回收菌落数1.78×104cfu/mL，作用后对照样平均回收菌落数4.60×105cfu/mL，检测结果见表2。The antibacterial properties of the silver mask cloths of Examples 1-5 and Comparative Examples 1-3 were detected, and the detection basis was GB/T21510-2008, FZ/T 73023-2006, and the test time was 24h. Among them, Example 1-5 And in Comparative Examples 1-3: the colony count of Candida albicans 0h blank control sample was 4.50×104 cfu/mL, the 24h blank control sample colony count was 4.40×104 cfu/mL; the 0h blank control sample colony count of Trichophyton mentagrophytes was 3.60 ×104 cfu/mL, 24h blank control sample colony count 3.50×104 cfu/mL; Staphylococcus aureus 0h blank control sample colony count 4.30×104 cfu/mL, 24h blank control sample colony count 4.20×104 cfu /mL; Escherichia coli 0h blank control sample colony count 4.60×104 cfu/mL, 24h blank control sample colony count 4.40×104 cfu/mL; Candida albicans 0h control sample average recovered colony count 1.78×104 cfu/mL , the average recovered colony number of the control sample after the action was 4.60×105 cfu/mL. The test results are shown in Table 2.
表2Table 2
将实施例1-5以及对比例1-3的面膜布进行水洗200次，发现，实施例1-5的面膜布即使经过水洗200次，抗菌率仍＞99.9％，对比例1的面膜布抗菌率经过水洗200次，抗菌率＞89％，对比例2的面膜布抗菌率经过水洗200次，抗菌率＞45％，对比例3的面膜布抗菌率经过水洗200次，抗菌率＞25％。The mask cloths of Examples 1-5 and Comparative Examples 1-3 were washed 200 times with water, and it was found that even though the mask cloths of Example 1-5 were washed 200 times, the antibacterial rate was still >99.9%, and the mask cloth of Comparative Example 1 was antibacterial. After washing 200 times, the antibacterial rate is >89%, the antibacterial rate of the mask cloth of Comparative Example 2 is washed 200 times, and the antibacterial rate is >45%, and the antibacterial rate of the mask cloth of Comparative Example 3 is washed 200 times, and the antibacterial rate is >25%.
以上所述的实施例仅是对本发明的优选方式进行描述，并非对本发明的范围进行限定，在不脱离本发明设计精神的前提下，本领域普通技术人员对本发明的技术方案做出的各种变形和改进，均应落入本发明权利要求书确定的保护范围内。The above-mentioned embodiments are only to describe the preferred mode of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, those of ordinary skill in the art can make various Variations and improvements should fall within the protection scope determined by the claims of the present invention.
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