1. The color of the tin plate sheet printing product is different from the actual product. Customers will think that the tint of the tin box is inconsistent with the finished product, which will jeopardize the order information of the company and the brand image of the company. In fact, this is a customer's psychological expectations. Objectively speaking, the color shift of the tin box packaging printing is the essence of things, and it is not possible to attribute all the obligations to the tin box manufacturer. As we all know, manufacturers of tinplate boxes can only reduce errors and cannot completely avoid them.
2. The color of proof printing is different from that of electrolytic tin plate batch printing. When customers make sample prints, the color tone is just right, but they don't know that the color tone of the batchtin plate sheet printing is different, which is not what customers can understand. The emergence of this problem is related to printing ink problems, paper type problems, and dot restoration problems. If there is such a problem, the customer should be notified and asked to sign the sample himself.
3. The internal and external colors of the same batch of products are not exactly the same. In the tin plate sheet printing process of the printing press, the inking of the ink is a dynamic balancing process. In the electrolytic tin plate printing process, when the ink on the ink roller is reduced to a certain extent, the printing machine will automatically perform ink compensation. Here, to some extent, the color of the printed product before printing and the printed product after printing will directly deviate. This kind of color difference is the essence of things, which is a difficult problem that the packaging printing manufacturing industry has not been able to deal with for a long time.