1. Application of nanotechnology Emerging nanomaterials have a series of unique functions and are undoubtedly a bright spot at the forefront of the current development of new functional finish...
1. Application of nanotechnology
Emerging nanomaterials have a series of unique functions and are undoubtedly a bright spot at the forefront of the current development of new functional finishing technologies. Many domestic universities and research units focus on research on metal oxides with semiconductor structural properties such as TiO2, ZnO, and Si02: and other nanomaterials, and introduced their effects in anti-ultraviolet, antibacterial and other aspects. The Hong Kong Polytechnic University has developed textiles with self-cleaning properties. They used sol-gel technology to apply titanium sol to the fabric to form a gel. TiO2: anatase structure, under ultraviolet irradiation, can produce hydroxyl radicals (•OH) and peroxide with strong oxidizing properties. Ions (•O2-) and perhydroxide radicals (•OOH) can decompose dirt on fabrics to keep them clean. The article does not mention whether damage is caused to the fabric (matrix) at the same time, and how the anatase structure can be formed under the low temperature conditions of the treatment.
Domestic manufacturers of nano powders have reached a certain scale, and there are also some manufacturers that can provide nano finishing agents. The media has reported information about functional finishing textiles processed with nanotechnology passing technical appraisal or being put into batch trial production. Generally speaking, the application of nanotechnology in functional finishing in my country is still in its infancy, but its development prospects are extremely attractive. According to Cientfica, a consulting company dedicated to textile nanotechnology, it is predicted that the market for nanotextiles will reach US$13.6 billion in 2007 and jump to US$115 billion in 2012. Its growth rate is much higher than that of traditional clothing and home textiles. However, the preparation and application of nanomaterials are not mature enough, and there are still many problems that need to be solved. If nanoparticles enter the environment, there is still a lack of reliable data on the impact on biological (including human) life through breathing and contact. This is not only the forefront of international science, but also a social security issue closely related to human health activities.
2. Application of packaging technology
The use of wrapping technology is to wrap chemicals that cannot be replaced by traditional finishing and have certain sustained functional effects. It is one of the methods to develop a number of new functional finishing methods in recent years. There are two commonly used packaging methods: one is sustained-release microcapsules; the other is cyclodextrin. The former is a one-time closed wrapping method, and the latter is an open wrapping method that can be repeated or replaced with other wrapping materials midway. The wrapped capsules can be fixed on the fibers with the help of adhesives, and cyclodextrin can also ensure that the outer layer has hydrophilic hydroxyl groups and use a cross-linking agent to form a chemical bond with the reactive groups on the surface of the fibers. .
In the late 1980s, people used microcapsule technology to prepare sustained-release aromatic microcapsule finishing agents, which was the first attempt to use encapsulation technology in the field of finishing. With the rapid development of industrialization, the damage to the ecological environment has expanded rapidly, leading to the deterioration of human living conditions. First of all, people’s skin has been harmed. Due to research on the mechanism of action of skin, people have realized the importance of cosmetics for skin health care. , leading to the emergence of Skincare Finishing, a fashionable and functional finishing for wearing cosmetics on the body.
Skin care finishing has the functions of moisturizing, moisturizing, conditioning and controlling pH value. Generally, conditioning the skin can relieve fatigue, delay aging, provide a feeling of freshness and coolness, and make the user feel more comfortable physically and mentally. It should also have a slimming function. Most of the raw materials used are natural raw materials and have passed cosmetics standard inspection and comply with environmentally friendly chemicals.
Skin care and finishing products are very popular among women, and young women are the main consumer group, with huge market potential. The products are mainly underwear and bedding. How to make consumers feel the practical effect of its functions, washability and safety are the key technical keys.
The aromatic fabric finishing agent distributed is a kind of slow-release aromatic microcapsule technology. The treated fabric has a long-lasting fragrance and no toxic and negative effects, and is very popular in the market!
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