Anti mite textiles: principle, function and realization method
Published on: July 10, 2018
Source: Textile Guide
With the improvement of people's environmental protection and health awareness, not only pay attention to the beauty and comfort of products, but also put forward higher requirements for the hygiene and health care functions of fibers and fabrics. For example, fibers and fabrics with anti mite function have been widely used in recent years.
Dust mite and its harm
Dust mite is an autophagous mite. It feeds on powdery materials, such as animal dander, flour and cottonseed cake. The most suitable temperature for its growth and development is (25 ± 2) ℃, and the most suitable relative humidity is about 80%. The room with air conditioning and carpet is a good living environment.
The main harm of dust mite is dust mite allergy, and its clinical manifestations are dust mite asthma, allergic rhinitis and allergic dermatitis. Many large-scale epidemiological investigations have found that dust mites are the most important indoor allergen. It is estimated that 50% ~ 80% of asthma is caused by dust mites, which can also cause other allergic diseases such as hay fever.
Anti mite textiles
Textiles with anti mite and anti-bacterial properties can not only inhibit mites and drive away mites, effectively prevent the occurrence of diseases related to dust mites, but also resist bacteria and inhibit the reproduction of bacteria, so as to improve the living environment. Based on the application of textiles and the living conditions of mites, the current anti mite measures of textiles generally include chemical anti mite, physical anti mite and natural fiber anti mite..
Chemical control of mites
Chemical acaricide is to kill and repel mites by chemical methods. The chemical acaricides used include acaricide and acaricide. The mechanism of acaricides is to destroy the nerve function, epidermis, growth, development and reproduction of mites to achieve the purpose of killing mites; Mite repellents prevent mites from approaching or inhibiting their reproduction under the action of taste, smell and pheromone.
Finishing method is an earlier conventional treatment technology for anti mite textiles, which includes spraying, padding, coating and so on. The production process of this technology is simple and the application range is wide. The disadvantage is that the durability is poor, and the anti mite performance weakens with the use and washing. At present, new technologies such as microcapsule technology, bonding technology and cross-linking technology are used to make the anti mite finishing agent form an elastic film on the surface of the fiber, which can improve the performance of the anti mite fabric and have better durability.
In recent years, great progress has been made in the application of anti mite functional fiber. At present, there are two commonly used methods for the production of anti mite functional fibers: adding anti mite finishing agents in the polymer polymerization process and spinning, or applying anti mite finishing agents in polymer spinning process, such as the Japanese bell spinning company, using acrylic fiber as the base material, and applying anti mite finishing agent in the gel state when it is in the gel state, so that the anti mite finishing agent penetrated under the surface of the fiber. The effect of mite control was improved. In addition, the anti-bacterial and anti mite group can be grafted onto the reaction base of the fiber by grafting technology.
Physical prevention of mites
According to the filtration theory, the finer the fiber in the filter material, the larger the specific surface area and the smaller the pore size, the better the filtration accuracy and efficiency. Therefore, by increasing the fabric density, the invasion of mites or other allergens can be prevented, so as to achieve the purpose of mite prevention. For example, the anti mite rate of "klinick" high-density fabric made by Toray company of Japan reaches 90%; In addition, the nonwovens "teweiqiang" produced by DuPont company of the United States and the microfiber cloth "evolon" produced by kedebao company of Germany are all such products. Physical anti mite methods can avoid or reduce the use of chemical reagents, and the anti mite effect is lasting. But this method mainly depends on the fabric itself woven tightly or with microporous structure to prevent mites from invading or passing through the fabric, which can not repel or kill mites.
Anti mite effect of natural fiber
Bamboo contains a unique substance "Zhukun", which has natural antibacterial, anti mite, anti odor and anti insect functions. Although the natural characteristics of bamboo pulp fiber were destroyed during the processing, and the functions of deodorization, antibacterial and anti ultraviolet of the fiber decreased significantly, the experiment proved that the bamboo pulp fiber still had good antibacterial and anti mite properties.
Kapok fiber has the characteristics of high and medium void ratio (more than 86%), both ends of the fiber closed and good warmth retention. The results show that the anti mite rate of kapok wadding reaches 90%, and the anti mite effect is excellent. It can be used as wadding for home textile products, and has a good market prospect.
|
What is bamboo fiber fabric and what are its advantages? 2020-09-18 05:00 Bamboo fiber fabric is a kind of environmental protection and green material in recent years. Because of its many advantages, it has been favored by people since it came into being. Perhaps many people are still unfamiliar with bamboo fiber fabric, so what is bamboo fiber fabric and what is its unique function? Let's take a look at the bamboo fiber fabric. Bamboo fiber fabric Bamboo fiber is a kind of cellulose fiber extracted from natural bamboo, which is the fifth largest natural fiber after cotton, hemp, wool and silk. Bamboo fiber has good air permeability, instant water absorption, strong wear resistance and good dyeing properties. At the same time, it also has natural antibacterial, bacteriostatic, acarid, deodorant and anti ultraviolet functions. Experts pointed out that bamboo fiber is a kind of natural environmental protection green fiber in the true sense. Bamboo fiber textiles are favored by consumers because they completely copy the inherent characteristics of bamboo fiber, and the demand for products is increasing year by year.
Advantages of bamboo fiber fabric Compared with traditional fabrics, bamboo fiber fabric is different. It has many unique features in its own quality and finished product performance. Now, let's take a look at the advantages of bamboo fiber fabric. 1. Delicate and smooth Bamboo fiber fabric has fine compactness, coupled with the natural smoothness of bamboo fiber, bamboo fiber fabric feels very smooth, delicate, similar to silk feel. 2. Breathable and hygroscopic As a kind of plant fiber, bamboo fiber has good air permeability. After being made into bamboo fiber fabric, the fabric is covered with fine holes, which help the fabric breathe and absorb water. Therefore, the permeability and moisture absorption of bamboo fiber fabric is very strong. 3. Inhibition of bacteria This characteristic has been proved by experiments. Bamboo fiber fabric not only does not breed bacteria, but also can kill the spread of bacteria, which is very healthy. 4. UV resistant Bamboo fiber has a strong ability to resist ultraviolet rays. It is scientifically proved that the ultraviolet rays are strictly controlled. 5. Beauty and health care This characteristic is also the characteristic of bamboo itself. Bamboo has natural medicinal value in deodorization, insect prevention and mite elimination. Long term consumption of bamboo fiber products can provide beauty and health care. 6. Warm in winter and cool in summer This item is related to the natural coolness and air permeability of bamboo fiber. In summer, it is cool and heatstroke proof, and in winter, it is comfortable and warm. 7. Green environmental protection Bamboo fiber is a kind of pure plant fiber, which does not involve chemical products. It is green and natural. The growth speed of bamboo is very fast, the planting area is wide, the regeneration ability is strong, energy saving and environmental protection. 8. Comfortable and beautiful Bamboo fiber fabric has high brightness, good dyeing effect, and is not easy to fade. Coupled with its smoothness and delicacy, this kind of fabric is very beautiful.
Bamboo fiber fabric has many advantages, but everything has two sides. Bamboo fiber fabric also has its own disadvantages. Its service life is very short. If it is not replaced for a long time, the performance of bamboo fiber fabric products will obviously decline, and it is very uncomfortable to use. Therefore, in daily use, we should avoid twisting and pulling bamboo fiber products, We can't soak them for a long time, don't expose them to the sun for a long time, and don't use softeners when washing. We should pay attention to changing them after using them for a period of time, so that we can fully enjoy the benefits of bamboo fiber fabrics. |