Antibacterial finishing technology refers to the use of various chemical techniques to make fabrics inhibit the growth of fungi, protect fabrics from bacterial attack, and protect consumers from transmitting pathogenic bacteria. Antibacterial Finishing Technology Introduction Antibacterial finishing can prevent bacteria from spreading on the surface of fabrics, impart hygiene and freshness to fabrics, prevent odors, control the production of bacterial dirt, improve the feel of most fabrics, and prevent skin irritation. Evaluation of the antibacterial finishing effect can not simply stay on the antibacterial data, more importantly, the threat to the safety of the human body, especially the long-term potential hazard. The first classification of the main antibacterial finishing technology: The durability classification of the antibacterial properties of textile materials is temporary antibacterial and durable antibacterial. The temporary antibacterial property of the fabric is easily achieved in the finishing, but it is easy to lose in the small washing; and the durability of the antibacterial fabric is mostly achieved by the sustained release method. According to this method, sufficient antibacterial finish should be incorporated into the fiber or fabric towel during the wet finishing process, and the treated fabric loses activity by slowly releasing the antibacterial benefit from the material. The antibacterial finishing effect test The effect of antibacterial deodorizing textiles should be tested by antibacterial test, and can be divided into antibacterial test and sterilization test according to the different antibacterial activity. According to the degree of quantification, it can be divided into qualitative test, semi-quantitative test and quantitative test. Army Cap,Military Cap,Army Hat Cap,Military Flat Cap Dongyang City Feilong Cap Co., Ltd. , https://www.zjflcap.com Antibacterial finishing technology
Antibacterial finishing agent antibacterial finishing agent (2 photos)
1. Blending spinning method: an antibacterial agent is first added into a spinning material to prepare an antibacterial fiber, and then an antibacterial textile is prepared. The method has long-lasting antibacterial effect and good washing durability, but the technical content is high, the difficulty is large, the field is wide, the antibacterial agent is high, and the synthetic fiber product is commonly used.
2. Finishing method: Antibacterial agent (often referred to as antibacterial finishing agent) is added during the finishing process of fabric printing, and then made into various antibacterial textiles. The processing of the method is relatively simple, and the washing durability and the antibacterial effect are poor.
3. Composite finishing method: firstly add antibacterial agent to the spinning material to make antibacterial fiber, add antibacterial finishing agent in the finishing process of fabric printing, and then make antibacterial textile. This method only has high antibacterial performance requirements. Used in special products, limiting the scope of use. 
The second classification:
1. Surface treatment technology: also known as coating finishing, uniformly coating one or more layers of high-polymer materials on the surface of the fabric. ###################### The coating does not penetrate into the interior of the fabric, so it can keep the fiber itself soft.
2. Chemical functional finishing technology: fabric chemical finishing is the action of specific chemicals (or finishing agents) with fibers, which may be covalently bonded, or may be ionic bonds, coordination bonds, hydrogen bonds or Van der Waals forces (dispersion, induction, and force) combine to even fix the finish on the fiber surface with an adhesive.
3. Wool functional finishing technology: The functional finishing of wool fabrics is to sort out some functions that the wool fabrics did not originally possess. The functional finishing of wool fabrics mainly includes: anti-felt finishing, elastic finishing, three-proof finishing, anti-static finishing, flame-retardant finishing, antibacterial finishing, far-infrared finishing, anti-ultraviolet finishing, and the like.
4. Silk functional finishing technology: The silk fabric can be kept clean, fresh and antibacterial by finishing. The silk fabric finishing process involves many processes. The selection process must take into account the required silk feel and drape, and the correct combination of finishing equipment and the order of the finishing process are the key to determining the final style of the silk fabric.
5. Composite function finishing technology: ibid.
However, if the antibacterial agent enters the material without being covalently bonded to the fibers, they may completely disappear during long-term use and the function imparted will be reduced. In order to achieve the endogenous nature of the antibacterial function, a new finishing method has appeared in the factory many years ago, which is the development of the theoretical model proposed in Gauguardi's newspaper in 1962. According to this process, the parent (potential antibacterial agent) of the antibacterial compound replaces the antibacterial agent itself and is used in the antibacterial treatment of the cellulosic material. Before the antibacterial functional group is activated, the parent of the antibacterial compound is covalently bonded to the cellulosic material, and then it can be activated by a reversible chemical process (such as a redox reaction) to release an antibacterial function. Group. This finishing method is similar to the crease finishing process. The activation reaction can be carried out in a conventional process such as bleaching, whereby the antibacterial properties of the fabric can also be regenerated.
The following is a brief introduction to two common experimental methods:
1. Medium method l This is a qualitative antibacterial test method suitable for fabrics. The antibacterial fabric and the reference fabric are made into a circular swatch, placed in a medium containing a certain strain, and cultured at a constant temperature for a certain period of time to observe the growth and size of the inhibition zone. The larger the inhibition zone, the higher the antibacterial activity of the fabric. This method is based on the release of the antimicrobial agent from the fiber into the culture medium to create a zone of inhibition around the fabric. [4]
2, shake bottle method l This is a quantitative sterilization test method. Place the antibacterial fiber or fabric in an Erlenmeyer flask containing a certain culture medium (buffer solution), cover the bottle and shake it. After a certain period of time, observe the number of bacteria remaining in the culture solution. The sterilization rate is determined by The following formula is calculated: l Sterilization rate = (1 - number of bacteria after lofting / number of bacteria before lofting) × 100%