当基本的条件如营养、水份、氧气以及合适的温度都具备时,纺织品是微生物生长的极好媒介物,其硕大的表面积有助于微生物的生长。为了减少有害微生物对人的危害,防止在人与人、人与动物、动物与动物之间的传播,我们必须人为地控制纺织品中微生物的生长繁殖。
耐久性抗菌整理是一种很有效的方法。它可减少微生物降解织物产生的气味,可以杀死或抑制细菌,减少对人体的危害,起到卫生保健作用。
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However, ideal antibacterial finishing and its technology should meet the following conditions:</p
无毒,不引起皮肤过敏或不适﹔不影响纺织品性能或外观﹔能与常规加工工艺相容和耐多次水洗。整理工艺必须对环境友好,整理后仍保持整理剂的内在功能,整理过的产品具有耐久性并保留织物所需要的功能及服用性能。
Antibacterial Mechanism Antibacterial agents inhibit or kill bacteria in several ways. Different types of antibacterial agents have different antibacterial mechanisms, which can be summarized as follows:</p
1. Inactivate various metabolisms in bacterial cells and kill bacteria; </p
2. Chemically react with proteins in cells and destroy their functions; </p
3. Inhibit sporulation, block DNA synthesis, and inhibit cell growth; </p
4. Accelerate the phosphoric acid chloride reduction system and disrupt the normal growth system of cells; </p
5. Destroy the energy release system in cells; </p
6.Hinder the electron transfer system and the process of amino acid transesterification; </p
7.通过静电场的吸附作用,破坏细胞壁而杀死细菌。
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抗菌整理剂的类型目前抗菌整理剂很多:可分为无机类、有机类和天然抗菌剂三大种类。
1.无机类抗菌剂多为金属离子以及一些光催化抗菌剂和复合整理抗菌剂。
2.金属及金属盐无机抗菌剂的组成,主要包括载体与抗菌成份,其中载体不是抗菌成份,而是保証活性组份稳定,同时具有缓释性� �抗菌成份主要是一些金属离子,如Pd、Hg、Ag、Cu、Zn等以及它们的化合物,通过与细菌中的细胞蛋白结合,使细菌变性或失活� �考虑到安全性,常选用Ag、Cu、Zn� �但由于Cu离子带有颜色,影响织物外观;Zn抗菌性差,其强度仅为Ag的1/1000� �因此市场上商品化的绝大多数使用载银无机抗菌剂� �银系列抗菌机理目前没有明确的定论,主要有接触抗菌机理和光催化抗菌机理,多数人认同接触抗菌机理� After Ag+ comes into contact with bacteria, it is firmly adsorbed on the negatively charged cell membrane by Coulomb attraction, and further penetrates the cell wall into the interior of the bacteria, reacts with the sulfur groups in it, destroys the activity of cell synthesis, and causes the cells to lose their ability to divide and proliferate and die. And Ag+ will be released from the dead bacteria to continue sterilization, and the antibacterial effect will be longer-lasting. �</p
Article source: Meisheng Bio
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