Paper, stone finish tinplate, glass, and plastic are called the four major packaging materials. As one of the four major packaging materials, stone finish tinplate packaging materials occupies an important position in modern packaging materials.
Let's talk about the disadvantages and advantages of stone finish tinplate packaging.
(1) With excellent barrier properties and excellent comprehensive protection properties, stone finish tinplate packaging materials have extremely low permeability to gas, water and water vapor (almost zero), good fragrance retention, and completely opaque, which can effectively Avoid the harmful effects of ultraviolet rays; its gas barrier, moisture resistance, shading and fragrance retention far exceed other types of packaging materials such as plastic and paper. Therefore, the electorlytic tinplate strips packaging can provide excellent protection performance for the contents, which is beneficial to maintain the quality of the goods for a long time.
(2) Good mechanical properties, processability and high-strength electorlytic tinplate strips packaging materials have good ductility and high strength, and can be processed by stamping, rolling, stretching, welding, etc., and can be made into thin-walled, The packaging container with high compressive strength and not easy to break can also be combined with other materials to form a composite packaging material with excellent comprehensive performance.
(3) Tinplate printing tray has a special metallic luster and good surface decoration. The special metallic luster and exquisite decoration printing can make the appearance of the product rich and gorgeous, beautiful and marketable, and at the same time can increase the value of the product.
(4) Convenient and hygienic metal packaging containers and inner coatings generally meet the requirements of hygiene and safety, and the products packaged with them are easy to carry and use (generally equipped with easy-opening devices, such as the pull ring of a can), and can adapt to Different climatic conditions. And the waste disposal is good, and it can be recycled and reused.
The disadvantages of electorlytic tinplate strips packaging mainly include: poor chemical stability, especially steel materials are easy to rust, generally should be coated with anti-rust materials; acid and alkali resistance is weak, when packaging acidic materials (especially food), metal ions will be precipitated. Influencing product quality, generally require inner coating isolation protection; stone finish tinplate packaging materials are more expensive than other packaging materials, and the overall packaging cost is relatively higher.