來源：http://www.skyequiltedcards.com 發布時間：2022-06-30 15:03:35
The color of aluminum coil is various, but sometimes the color dyed by the manufacturer can not reach the ideal effect, which seriously affects the use effect. So what factors will affect the dyeing of coiled materials? What is its storage environment?
1. oxide film. Oxide film refers to the thickness, porosity, transparency, etc. of the coil film layer. The thickness of the film layer shall be kept above 10um.
2. Temperature of dye solution. The dyeing of aluminum coil can be divided into cold dyeing and hot dyeing. Cold dyeing takes a long time in production and the dyeing uniformity is well controlled; However, the heat dyeing time is short and the color is difficult to control. Its temperature is about 40-60 ° C. Too high temperature will reduce the adsorption of dyeing, which is easy to cause frost on the surface of coiled material.
3. Raw materials. In the dyeing process, high-purity aluminum, aluminum magnesium and aluminum manganese alloys can be dyed into various colors after anodic oxidation treatment; For heavy silicon or heavy copper coils, only dark, black and other monotonous colors can be dyed in the dyeing process.
4. Dye concentrate. The concentration of aluminum coil is related to dyeing. If you dye light colors, the concentration can be lower, and the concentration of dark colors should be higher.
Generally speaking, the lighter color is 0.1-0.39g/l, the lighter color is 1g/l, the darker color is 3-5g/l, and the thicker color is 10-15g/l. In order to strengthen the adsorption of dyeing, the low concentration color can be used for extended dyeing, so that the dye molecules can penetrate into the pores of the oxide film more evenly, and the dyed color is more harmonious and firm
The storage environment shall ensure air circulation and dryness, and shall not be placed in a humid environment. This is mainly because the product is a non-ferrous metal, which will undergo oxidation-reduction reaction after contacting with water vapor, which will form spots on the surface, resulting in damage to the coil surface. Therefore, a dry environment is very necessary for the storage of coiled materials.
Tightness of outer packing box. Before leaving the factory, the manufacturer will put a layer of plastic film on the outside of the aluminum coil, put moisture-proof desiccant in the film, and then wrap a layer of packaging box to prevent the coil from oxidation due to moisture or rain during logistics and transportation. Therefore, for this product, if it is not applicable, we do not recommend opening the package. If the package is found damaged, it should be repaired immediately to prevent damage to the product. Generally speaking, the product can be stored for a long time on the premise that the outer packaging is not damaged.
The aluminum coil manufacturer should pay attention to that if the aluminum coil is not used up after opening the outer packaging, the remaining coil must be put back into the original packaging, repackaged according to the previous method, and placed in a dry and ventilated place to ensure that the remaining products are not oxidized and can still show a good use effect in the next use.
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