Suno packaging is a professional for you to create the most secure easy open lid packaging business, production and research and development as a whole. The main products include three series: Beverages easy open lid, aluminum easy open lid and tinplate easy open lid  safe side. Applies to all kinds of tin cans, aluminum cans, composite cans and PET cans. Now we explain the inner wall easy open lid cans curing methods to prevent discoloration.

1, the addition of acid in the alkaline range prone vulcanization color, so the amount of citric acid added point can effectively prevent the generation of the iron sulfide.

2, the use of anti-tank wall sulfur coating.

3, treatment with chemical passivation method tinplate passivation, Paul oxide film formed on the surface to prevent discoloration or sulfide corrosion resistance of reinforced metal plate.

4, in the canning process strictly prevent the tin layer, a passivation film and the coating layer is damaged.

5, the strict control of the heating intensity and speed of cooling.

6, different raw materials necessary to take different measures to prevent, in addition, fresh ingredients will not aggravate sulfide generation.