Polypropylene is the name of polypropylene fiber produced in China. This fiber was invented by the Italian Nathalie in 1955 and did not enter industrial production until 1960. Among the many synthetic fibers, polypropylene belongs to the "young generation."
The proportion of polypropylene is only 0.92, which means that clothes made of it can float on the water without sinking. Polypropylene, although "light", but the body is very strong. The biggest advantage of this type of fiber is its abundant raw materials and relatively simple production. Therefore, the cost is low and it has development value.
Polypropylene "cheap" is "good thing"? From the warmth, fluffy and chemical resistance to the "good thing." However, the light resistance is very bad and it is easy to age. Second, the heat resistance is also not good. More troubling is that the dyeing is not easy and it is difficult to dye well. Polypropylene also has a disadvantage in that it does not feel good, and there is no "grace" like polyester. Later, people blended it with cotton. All these shortcomings have been improved to some extent, but the proportion in the consumer market has not been very large.
In recent years, with the advancement of technology, it has been found that when its linear density is reduced to less than 0.2 tex, a special core absorption effect can induce moisture, and it can be used to make underwear not stick to skin when sweating. Many people hope that such underwear should also have good comfort. In fact, fiber's moisture absorption and moisture conductivity are not equal. Whether such commodities can be accepted by consumers remains to be verified in practice.
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