Why are the colors of white water glasses purchased at the same time obviously different?

This problem must have troubled many consumers, and they must have encountered various explanations from various customer service companies. Some consumers are very tolerant and accept it because they find it troublesome, while others will choose to return it. So how did this happen? We first explain the problem of color difference. The main reasons for color difference are the inconsistent color of the spraying material and the inconsistent control of the spraying process.

There are two situations in which the color of spraying materials is inconsistent. There are color differences between spraying materials from the same batch and color differences between spraying materials from different batches. Different batches of spraying materials are easy to understand, but it is not easy to understand the inconsistent colors of spraying materials in the same batch. Color differences in the same batch often indicate that the product is shipped in large quantities and requires a lot of spraying materials. In this way it is possible for color inconsistencies to occur in a large number of materials from the same batch.

Many people don’t understand the control of the spraying process. Taking white as an example, the effect and color of the same stainless steel water cup will be different between manual spraying and automatic spraying; the number of spraying passes for the same spraying process will also directly affect the color change. The stainless steel water cup is spray painted white. Usually the white color at this time will be grayish and bluish. After spraying twice, the color will become yellowish. As the spray becomes thicker, the color will also turn red.

Although the above reasons explain the reasons for the color difference of water cups, from the perspective of production standards, it should not happen, nor should products of different batches of colors enter the market. Thewater cup industry not only has Chinese water cup industry production standards but also international industry standards. Each standard clearly states the requirements for color consistency, which requires quality control personnel to strictly control color consistency.