Arduous exploration of the hottest renewable fiber

2022-08-15
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Arduous exploration of renewable fiber road

at the beginning of the last century, in order to solve the shortage of cotton resources, the first generation of regenerated cellulose fiber - ordinary viscose fiber realized industrial production. Since then, with the development of technology, 7 There are obstacles in the lifting process of the pendulum and the expansion of the research scope, and other types of renewable fibers have been derived. So far, renewable fibers can be roughly divided into several categories: cellulose fibers, chitin fibers, algae fibers, as well as polylactic acid fibers, PTT fibers and other varieties

the best "model"

cellulose fiber is a major category of renewable fibers, and it is also the key to the development of renewable resources. At present, the global output of natural cellulose has reached 100 billion tons/year, while the consumption of cellulose in the world textile industry is less than 22 million tons/year

if the model fiber produced by Austrian Lanjing company in the 1980s is a model for the development of cellulose fiber in the world, the development of viscose fiber is more "model" for China, which is lack of tree resources

so far, viscose fiber still plays an important role in the cellulose fiber family. At the 15th China International Chemical fiber conference held not long ago, a large gathering of domestic viscose fiber related enterprises came. Although the demand situation is still severe and the internal and external environment is still very bad, they are still confident in the future of the industry

reasons for these enterprises to maintain confidence, In addition to viscose fiber itself, it has a series of valuable physical and mechanical properties and conforms to hygiene, and can be divided into wedge-shaped fixtures (it refers to the adoption of the properties required by the inclined plane, and the product innovation, improvement of quality and dyeing level, which has greatly broadened the application field. Besides, it is also because the industry has achieved phased victory in cleaner production, and is still developing new technologies and improving unreasonable production methods. For example, the comprehensive wastewater treatment technology developed by Shandong Hailong and the waste gas treatment technology developed by Zhejiang Fulida have laid a foundation for the establishment of an environment-friendly industry Set the foundation

insiders pointed out that the sustainable development of viscose fiber industry in the future must rely on three aspects of innovation: process technology and equipment innovation, product innovation, and raw material application innovation. Technological and equipment innovation has enabled China's viscose fiber industry to achieve large capacity, flexibility, low pollution and low energy consumption of production equipment, opening up a new era for the development of China's viscose fiber industry. New varieties such as high wet modulus viscose fiber, silicon series and phosphorus series flame retardant viscose fiber have broadened the application field of viscose fiber. Especially in the current severe demand situation at home and abroad, product innovation has important practical significance

at present, viscose fiber can't play a role at all. Cotton pulp and wood pulp are mainly used in mature materials. Limited by the growth of cotton output, the growth of cotton pulp resources will be greatly restricted; In terms of wood pulp application, the development of fast-growing wood abroad is relatively mature, but domestic wood resources are in short supply, and the integration of Forest Pulp will be greatly affected. Therefore, the application innovation of raw materials is a major issue facing the development of viscose fiber. At present, the industry has successfully developed pulping raw materials such as bamboo, hemp and cotton stalks. With the development of technology, the source of raw materials will be further expanded

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