What is Tinplate?

What is Tinplate?

Tinplate Steel (SPTE, ElectrolyticTinplate) is commonly known as cold rolled tinplate thin steel plates. It refers to cold -rolled low -carbon thin steel plates or steel strip with electrolytic tin coating on both sides.

It mainly plays the effect of preventing corrosion and rust. The strength and molding of steel are combined with the corrosion resistance of the tin, the tin welding and beautiful appearance in one material, good sexual characteristics.

Electrolytic Tinplate originated from Bohemia (now Czech and Slovakia). The place has been rich in metal since ancient times, advanced craftsmanship, and knowing how to use hydropower to engage in machinery manufacturing. Since the 14th century, the production of horse mouth iron has been produced. Later, for the First World War, the army of various countries made a large number of iron containers (cans) and extended to today.

The characteristics of the Tinplate

Non-transparency

In addition to the inferior reactions of food, light can also cause changes in protein and amino acids. Vitamin C is more likely to be irradiated by light to make it effect with other food components, which causes a lot of loss. According to research and analysis, the amount of losses of vitamin C is 14 times higher than the milk of the vitamin C in the milk of transparent glass bottles. The opaque light of the Magou iron can make the preservation rate of vitamin C. The highest preservation rate.

Good sealing

The blocking container’s resistance to air and other volatile gases is very important for the preservation of nutrients and sensory quality. Compared with various juice packaging containers, the oxygen transmission rate of the container directly affects the brown change of fruit juice and the preservation of vitamin C; metal tanks, glass bottles and aluminum foil accumulation layers, and carton preservation of vitamin C with low oxygen transmission rate It’s better, and the iron can is the best.

Tin’s restoration effect

The tin on the inner wall of the tinplate steel will be the oxygen effect that remains in the container during filling, reducing the chance of food ingredients to be oxidized. The restoring effect of tin has a good preservation effect on the flavor and color of light -colored fruits and juice. Therefore, it is better to use the nutrition of the juice cans without painted iron cans. The acceptability of the flavor and quality is better, and the storage period is extended.

Origin

Tinplate cans can packaging food, except for a few light -colored fruits and canned juice, mostly uses the internal paint empty can to improve the container’s corrosion resistance. Due to the electrochemical effect of metal, paint canned canned food will be in storage.

A small amount of iron dissolves, exists in the sealing canned food in the two -price iron form, it is easy to be absorbed by the human body, and the content is about 1 to 10 ppm. In terms of fruit and vegetable products, the raw material itself is not much iron content. The iron pot products are calculated in the beverage can of 350 ml per can, and the iron content is 5 ppm. Each can can be provided with 1.75mg iron.

One -tenth. If the above -mentioned fruit and vegetable juice beverage tanks are rich in vitamin C, the iron is more likely to be absorbed. Therefore, iron cans and beverages are a good source of iron, and it is far -reaching that it provides nutritional significance for iron can food.

Because of these attributes, the Tinplate Cans provides a closed system that is completely isolated from environmental factors except heat. Due to the inferiority of coloring foods due to light, oxygen, and moisture. Excessive pollution and taste, the stability of food storage is better than other packaging materials. The preservation rate of vitamin C is the highest, and the preservation of nutrients is also the best.

 

The application of Tinplate Steel is very extensive. From packaging materials as food and beverages to oil cans, chemical cans, and other miscellaneous cans. The advantages and characteristics of the Tinplate steel provide the content of the content and chemistry in the physical and chemical properties.

Food cans

Tinplate steel cans can ensure the hygiene of food, minimize the possibility of corruption, effectively prevent the danger of health, and also meet the convenient and fast needs of modern people in diet. , Candy packaging, cigarette packaging, gift packaging and other food packaging containers are the first choice.

Beverage cans

The tinplate steel can can be used to fill the juice, coffee, tea and sports drinks, and can also fill cola, soda, beer and other beverages. The height of the tinplate can make the cans change a lot. Whether it is high, short, large, small, or square, or round, it can meet the diverse needs of today’s beverage packaging and consumer hobbies.

Oil cans

Light can cause and accelerate the oxidation reactions of fat, reduce nutritional value, and may also produce harmful substances. What is more serious is that vitamins that destroy oil, especially vitamin D and vitamin A.

The oxygen in the air prompts the oxidation of food oil, reducing protein biomass, destroying vitamins, and the isolation effect of the obsession of the macyou iron transmission and the sealing air is the best choice for packaging oil food.

Chemical cans

The material of the tinplate steel is solid, good protection, non -deformation, earthquake resistance, and refractory resistance. It is the best packaging material for chemicals.

Spray bottles

High -temperature and high -pressure tinplate steel cans are particularly suitable for high -pressure filling spray tanks.

Other cans

The variable -shaped and printed biscuit barrels, stationery boxes and milk powder cans are all -round iron products.