The role of the brightener is to convert the invisible ultraviolet radiation absorbed by the product into purple-blue fluorescent radiation, which complements the original yellow radiation to become white light, and improves the whiteness of the product under sunlight. Brighteners have been widely used in textiles, papermaking, washing powder, soap, rubber, plastics, pigments and paints.
Generally, brighteners are divided into two categories, one is water-soluble brighteners, and the other is water-insoluble brighteners. The former can be used as a brightener for paper, paint, washing powder and cotton fabrics. The latter can be used for whitening of chemical fibers and plastics.
It is often divided into:
This product is especially used for the molding and processing of various plastics and plastic products under high temperature. Because of its good heat resistance, light resistance and chlorine resistance, it is a brightener for polyester fibers. Polyester, cotton and other fiber blended fabrics The whitening effect is also particularly ideal, and can be used for the whitening of polyester stock solution.
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As the highlight before the opening of the Expo, at the signing ceremony of the Sichuan-Central Enterprise Industry Matchmaking Symposium and Project Signing Ceremony held on the 15th, Li Rongrong, Director of the State-owned Assets Supervision and Administration Commission of the State Council led 60 central SOEs such as China Chemical Industry and China Chemical Engineering Co., Ltd. The group unveiled and signed 30 projects in energy, chemicals and new materials in 18 cities and counties such as Chengdu, Deyang and Mianyang, with an investment of RMB 52.3 billion; and 16 agreement projects with an investment of RMB 56.7 billion. Li Rongrong said that Sichuan’s scientific research and industry base is good. Central enterprises must keep their own responsibilities and exert influence to drive the development of Sichuan's energy and chemical industries.
China Chemicals and the Sichuan Provincial Government also signed a strategic cooperation agreement, which will deepen cooperation in new materials and other fields. It is understood that China National Chemical Industry will use Sichuan as an important base for the western chemical industry and will go all out to promote the construction of two scientific and technological industrial bases in Chengdu and Zigong as well as new chemical materials and specialty chemicals, salt chemicals, carbon-chemicals, and chemical machinery. With the development of large industries, by the end of the “Twelfth Five-Year Planâ€, new investment will reach 100 billion yuan, forming the largest industrial cluster in the central and western regions. At the same time, the group will speed up the construction of high-quality fluoroelastomers from Zigong Xihua Southwest Company, high-performance fiber from China Blue Chenguang Research Institute, and PPS (polyphenylene sulfide) projects from South West China, and start construction of special organics as soon as possible. Silicon and plastic alloys, 10,000-ton high-performance fibers, high-performance catalysts, special high-performance PTFE dispersion resins, and other projects to fully promote the coalbed methane to compressed natural gas projects, poor quality coal gasification and coal to ethylene glycol project industries Change.
Petrochemical giants such as PetroChina, Sinopec, and CNOOC also fully exhibited at the Western Conference. CNPC's investment in Sichuan will reach 7.53 billion yuan. Among them, invest 1.23 billion yuan in Guangan to build “Gasification Guang'an†project; invest RMB 1.9 billion in Guangyuan to build “Gasification Guangyuan†and other projects; invest RMB 3.4 billion in Nanchong to build natural gas purification plant with Lishan Township Government of Yilong County Invested 1 billion yuan in Mianyang to build a petrochemical research base. Sinopec will invest 280 million yuan to build a Sinopec finished oil and gas supply project in Guangyuan.
Fluorescent brightener for detergents; Fluorescent brighteners for textiles; Fluorescent brighteners for papermaking; Fluorescent brighteners for plastics and synthetic materials; Fluorescent brighteners for other purposes.
The giant oil and petrochemical industry Western Conference held unprecedented investment
On October 16th, at the 10th Western China International Exposition held in Chengdu, major groups in the oil and chemical industry invested heavily in Sichuan and became a beautiful landscape here. The organizing committee of the Western China Expo revealed that more than 500 petrochemical companies from home and abroad participated in the exhibition. Central enterprises such as Sinopec, PetroChina, and China National Chemical Corporation signed 30 contracts for chemicals and new materials on the first day. The contracted amount reached 100 billion yuan.