The appearance of nitrocellulose lacquer has been more than 100 years old. China began production and application in 1935. At that time, the production of nitrocellulose lacquer in the United States reached 42.3 million gallons (160 million liters). Nitrocellulose lacquer is very popular because of its fast drying, good decorativeness, good outdoor weather resistance, and the ability to polish and polish wax to modify the flaws caused by the paint film during construction. At that time, only nitrocellulose paint could be sprayed, which is suitable for large-area construction. DuPont's products have been used in the world's first automotive body coating line.
After the 1950s, with the development of the technical strength of the coatings industry, domestic coating companies have the conditions to improve old products, develop new products, adopt new processes, and add new equipment to improve the production quality and variety of nitrocellulose lacquers. rapid. The varieties produced at that time mainly include: nitro primer and putty, nitro industrial paint (nitro lacquer for internal use), automotive spray paint (external nitrocellulose paint), wood lacquer, pencil paint, leather paint, plastic paint, etc. Before the 1970s, it was a decorative high-grade coating product, and its output increased year by year. By the mid-1980s, after the statistics of China's coating products in 18 categories, the ratio of its output to the total output of coatings was relatively stable.
In recent years, with the development of the coatings industry and the advancement of science and technology, in order to continuously meet the needs of the society, a batch of new products have been successfully developed, and many synthetic resin coatings have emerged one after another. In order to adapt the coating products to meet the requirements of national industrial construction, the former Ministry of Chemical Industry proposed in the product structure optimization adjustment plan: "Limit the first four categories (grease paint, natural resin paint, phenolic paint, asphalt paint), and transform the two types of nitrate Base paint, perchloroethylene varnish, further improve the quality and develop synthetic resin paint." The development of synthetic resin paints has also squeezed out a portion of the market for nitrocellulose lacquers. For example, in the early 1960s, Beijing Red Lion Coatings Co., Ltd., the predecessor of Beijing Red Paint Co., cooperated with Beijing Auto Repair Factory, and was the first in China to change the trolley trolley and bus used in Beijing to urethane paint to amino acid baking varnish. And weather resistance, etc. have been significantly improved, greatly extending the maintenance time of these vehicles.
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