The development direction and outlook of pre-painted steel coils

If the 1950s marked the beginning of pre-painted coil, the 1960s marked a time of rapid development, and the 1970s saw the improvement of quality and the introduction of new technologies. The coming of the new century brings with it a widespread application of pre-coated rolled materials, the most promising uses in the development of space and packaging, giving the packaging sector a challenge for the new century.

1. Development of highly durable pre-coated rolls

(1) improve the weather resistance of oil-free polyester paint (excellent resistance to discoloration, fading, chalking paint), so that it is used exclusively as the external coating of steel drums.

(2) Vigorously develop polyfluoroolefin coatings. By cooperating with a rustproof substrate, it is possible to obtain a pre-coated coil that is more adaptable to the processing of steel drums.

(3) The use of galvanized steel as a substrate, which is not only good processability but also corrosion resistance.

2. Development of hardness, elasticity, and good resistance to staining pre-coated coil material

(1) The use of high-quality coil substrate with good processability.

(2) polyester resin as the basis, through the adjustment of molecular weight, the choice of crosslinking agent to sample high performance in this area.

3. Reduce the baking temperature and shorten the baking time

(1) Develop a new type of highly efficient catalyst and highly active curing agent.

(2) Improve the molecular weight of the resin, make the resin multifunctionalization, and increase the degree of branching of the resin.

(3) Develop electron beam curing coatings. Used for a pre-coated coil of electron beam curing coating has carried out a lot of research work, before industrialization has begun. But compared with the ordinary baking type, the history is not long, both varieties and production are less, to be further developed. Related product: Ral 1050 Galvanized Prepainted Steel Coil.

4. In the packaging collar will have greater application

(1) can replace the wood and cardboard production of ordinary packaging boxes, strong and reliable beauty and generous, waterproof fire corrosion, wooden boxes and cartons are difficult to compare the advantages.

(2) Alternative to ordinary thin steel plate to make metal containers, such as steel drums, steel cans, and small drums, etc., with simple processing, energy saving, and reduce pollution advantages.

(3) Alternative to tinplate manufacturing commodity packaging boxes, beautiful and elegant, low cost.

(4) Alternative to glass bottles and other manufacturing for food, beverages, cans, and other packaging, improving the safety of packaging.

(5) A large number of used in the manufacture of large-scale packaging products, such as containers, container drums, etc., to reduce costs, save energy, reduce pollution, and simplify processing.