Advantages of tinplate packaging in various industries

Opacity

In addition to causing the deterioration of food, light can also cause changes in proteins and amino acids. Vitamin C is more susceptible to light exposure

tinplate
tinplate
It interacts with other food ingredients, resulting in a large amount of loss. According to research and analysis, the loss of vitamin C of milk in transparent glass bottles is 14 times higher than that of milk in dark bottles. Light will also cause oxidative odor in milk, and the cracking of radionuclides and methionine will lead to loss of nutritional value. The opaqueness of the tinplate allows the highest retention rate of vitamin C.
 

good sealing

The barrier properties of packaging containers to air and other volatile gases are very important for the preservation of nutritional content and sensory quality. Comparison of various juice packaging containers proves that the oxygen transmission rate of the container directly affects the browning of the juice and the preservation of vitamin C; the preservation of vitamin C in metal cans, glass bottles and aluminum foil glued layers and cartons with low oxygen transmission rate Better, among them, tin cans are the best.

reduction of tin

The tin on the inner wall of the tinplate will interact with the oxygen remaining in the container during filling, reducing the chance of the food ingredients being oxidized. The reduction effect of tin has a good preservation effect on the flavor and color of light-colored fruits and juices. Therefore, the juice cans packed in unpainted iron cans have better nutritional preservation and slight browning than those packed with other packaging materials. The acceptance of the flavor quality is better, and the shelf life is thus extended.
Tinplate canned food, except for a few light-colored fruit and juice cans, mostly use empty cans painted inside to improve the corrosion resistance of the container; due to the electrochemical action of metal, painted canned canned food will have a small amount in storage. The iron is dissolved in the form of ferrous iron in sealed canned food, which is easily absorbed by the human body, and the content is about 1 to 10 ppm. As far as fruit and vegetable products are concerned, the raw material itself does not contain much iron. The iron content of iron cans is calculated as a 350 ml beverage can with an iron content of 5 ppm. Each can can provide 1.75 mg of iron, which is about 18 mg of human daily intake. one-tenth of . If the above fruit and vegetable juice beverage cans are rich in vitamin C, iron will be more easily absorbed, so iron canned food and beverages are a good source of iron, and the significance of providing nutrition to iron canned food is more profound.

Because of these properties, tinplate cans provide a closed system that is completely isolated from environmental factors except heat. Color-avoiding foods are deteriorated by light, oxygen, and moisture, and are not faded by aroma transmission or permeated by environmental odors. The food has better storage stability than other packaging materials, the preservation rate of vitamin C is the highest, and the preservation of nutrients is also the best.

beverage can

Tinplate cans can be used to fill juice, coffee, tea and sports drinks, as well as cola, soda, beer and other beverages. The high degree of manufacturability of tinplate cans makes the cans of various types, whether tall, short, large, small, square or round, can meet the diverse needs and consumer preferences of today's beverage packaging.

Grease tank

Light will trigger and accelerate the oxidation reaction of oil, reduce the nutritional value, and may also produce harmful substances. More seriously, it destroys oily vitamins, especially vitamin D and vitamin A.

The oxygen in the air promotes the oxidation of food oils, reduces protein biomass, and destroys vitamins. The opacity of tinplate and the insulating effect of sealing air are the best choice for packaging oily food.

chemical tank

The material of tinplate is strong, good protection, no deformation, shock resistance, fire resistance, it is the best packaging material for chemicals.

spray can

Tinplate cans that can withstand high temperature and high pressure, especially suitable for high-pressure filling spray cans.

dry jar

Variety of cans and beautifully printed biscuit buckets, stationery boxes and milk powder cans are all tinplate products.