The rubber industry is a characteristic industry and leading industry in Hengshui City, especially Taocheng District. Last year, the city’s rubber industry achieved a total output value of 15.05 billion yuan, of which the engineering rubber industry realized a production value of 6.1 billion yuan, accounting for 55% of the national market share. Taocheng District was also named by the country as China (Hengshui) Engineering rubber industry manufacturing base, The hometown of rubber products in China.
It is understood that in the process of the rise of the rubber industry in Hengshui City, industry associations have played a very important role. Ten years ago, the rubber industry of Hengshui City was in the process of transition to a market economy, and there were more than 1,000 rubber companies. The scale of production, technology, and product grades were uneven, the sales market was chaotic, and shoddy products and disorderly competition were serious. Lack of unified planning and supervision. In October 2000, Hebei Hengshui Engineering Rubber Industry Association was formally established. In the past 10 years, the association has cooperated with the local government to strengthen the management of the industry and externally promote the market, which has effectively promoted the orderly, healthy and rapid development of the engineering rubber industry. At present, the governing unit of the association has grown to 25, and has formulated eight documents such as the Engineering Rubber Industry Regulations Convention, and through various means to enhance the industrial image, the brand of Hengshui Engineering Rubber has become bigger and stronger.
Sodium hydrosulfite is widely used in the textile industry for reducing dyeing, reducing cleaning, printing and decoloring, and for bleaching silk, wool, nylon and other fabrics. Because it does not contain heavy metals, the bleached fabric has bright color and is not easy to fade. In terms of various substances, sodium silicate can also be used for food bleaching, such as gelatin, sucrose, honey, etc., soap, animal (vegetable) oil, bamboo, porcelain clay, etc. Sodium hydroxide can also be used in organic synthesis, such as reducing agent or bleaching agent in the production of dyes and medicines. It is the most suitable bleaching agent for wood pulp and papermaking. Moreover, many heavy metal ions such as Pb2+ and Bi3+ can be reduced to metals in water treatment and pollution control, and it can also be used to preserve food and fruits. However, due to the many dangers of sosso, many of its uses tend to be replaced by thiourea dioxide, which is safer and easier to store and transport.
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