Iron box iron can knowledge popularization
Release time:
2020-10-28
Iron boxes, many people call iron cans, are made of tinplate as raw materials, tinplate through welding or stamping and buckle bones and other different processes made of packaging boxes. Because it is made of tinplate as raw material, it is also called tinplate box. What is the difference between an iron box and an iron can? In fact, there is no strict difference at this point. Generally speaking, we call the square and rectangular boxes, and the round ones are called cans. Characteristics: 1. opaque light in addition to the deterioration of food reaction, but also cause changes in protein and amino acids. Vitamin C is more likely to interact with other food ingredients when exposed to light.
Iron boxes, many people call iron cans, are made of tinplate as raw materials, tinplate through welding or stamping and buckle bones and other different processes made of packaging boxes. Because it is made of tinplate as raw material, it is also called tinplate box. What is the difference between an iron box and an iron can? In fact, there is no strict difference at this point. Generally speaking, we call the square and rectangular boxes, and the round ones are called cans. Features: 1. Opacity In addition to the light will cause the deterioration of food reaction, can also cause changes in protein and amino acids. And vitamin C is more likely to be exposed to light and other food ingredients, resulting in a large loss. According to research and analysis, the loss of vitamin C in milk in transparent glass bottles is 14 times higher than that in dark bottles. Light will also cause oxidation and peculiar smell of milk, and the loss of nutritional value due to cracking of nuclides and methionine. The opacity of tinplate cans makes the preservation rate of vitamin C the highest. 2. Good sealing The barrier of packaging containers to air and other volatile gases is very important for the preservation of nutrients and sensory quality. Comparison of various fruit juice packaging containers proves that the oxygen transmission rate of the container directly affects the browning of fruit juice and the preservation of vitamin C. Metal cans, glass bottles, aluminum foil glue layers and cartons with low oxygen transmission rate have better preservation of vitamin C, of which iron cans are the best. 3. 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 oxidation of food ingredients. The reduction effect of tin has a good preservation effect on the flavor and color of light-colored fruits and fruit juices. Therefore, the fruit juice cans filled with unpainted iron are better than those filled with other packaging materials. The brown change is slight, the acceptance of flavor quality is better, and the storage period is thus prolonged. Iron Box Standard Main parts: reflect the main pattern, text, mark and bar code position. Slight scratch: the printing surface is not more than 0.3mm * 20mm, no iron scratch marks. Front view surface: The outer surface that can be observed by placing the front of the product graphic directly in front of and directly under the sunlight. Non-main viewing surface: A surface other than the main viewing surface, such as the back, side, bottom, and inner surface.
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