Analysis On The Processing Method Of Antibacterial And Odor Proof Textile Materials

At present spin There are many research reports on antibacterial and deodorant processing of materials, including quaternary amine salts, clothing, fatty acid vinegar, metal chemical compound Etc. Some of these antibacterial agents are only suitable for a specific fiber, and have the disadvantages of high reagent cost, complex processing technology, poor antibacterial and deodorant effect, poor durability, washing resistance, etc. Silk fabrics are light, breathable, comfortable to wear, and have a wide range of applications. However, there are few reports on antibacterial and odor proof processing of silk fibers.

We now provide a general antibacterial and odor proof processing method and products for silk and other textile materials. The specific processing steps are:

Impregnating textile materials or textile products in tannic acid solution to make tannic acid adsorbed on fibers, and washing after impregnation; 2。 The impregnated textile materials or textile products are then dipped in the metal ammonia complex ion solution to make tannic acid and metal ammonia complex ion generate tannic acid metal complex and combine it on the fiber. After soaking, they are washed, dried or dried. The general conditions of impregnation treatment are: concentration of metal ammonia complex ion solution 0.005M-ZM, bath ratio 1:20~1000, temperature normal, time 20 minutes to 24 hours; Common conditions are: concentration of metal ammonia complex ion solution is 0.01M~0.2M, bath ratio is 1:30~200, temperature is normal, time is 30~180 minutes.

The metal ammonia complex ion used in processing can be replaced by copper ammonia complex ion, zinc ammonia complex ion, nickel ammonia complex ion, or silver ion.

Copper ammonia solution, etc., is harmful to silk, cotton, hemp, artificial fibre It has dissolving effect, so it is generally not suitable to treat these fibers directly. The fiber should be adsorbed with tannic acid first, and then treated with copper ammonia solution. According to our research, when the fiber is soaked in copper ammonia solution after adsorbing tannic acid, the fiber is protected by tannic acid and will not be dissolved. Instead, tannic acid and copper ammonia complex ion generate copper tannate complex and combine it stably on the fiber, making the fiber or fabric have strong antibacterial ability. Tannic acid and copper salt solution can also form complex, but the structure of the complex is different from that of the complex formed by tannic acid and copper ammonia complex ion, and the reaction speed is slow and the amount of formation is small.

Antibacterial and odor proof textile materials and products prepared by this processing method are characterized by the combination of tannic acid and metal ammonia complex ions in the fiber molecule to form a tannic acid metal complex. The weight ratio of fiber, tannic acid and metal ions is 1: (0.005-0.5); (0.001~0.20)。

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Antibacterial and odor proof textile materials and products have the following advantages:

Wide scope of application: It is applicable to all textile materials with affinity for tannin, such as silk, cotton, linen, wool, rayon, nylon and other synthetic fibers and chemically modified fibers.

The processing method is simple: it is mainly a two-step impregnation process.

Low cost: raw materials are cheap.

Strong bactericidal and bacteriostatic effects: tannic acid metal complex can be stably combined on the fiber, which has strong bactericidal and bacteriostatic effects on gram-positive bacteria and gram-negative bacteria.

It is a permanent antibacterial and odor proof processing method with good durability and washing resistance.

It is non-toxic, non irritating and non allergic to human skin.

After treatment, it can increase the weight of textile materials and textile products.

It also made dyeing Processing.