Uniform ink color and bright color are the basic requirements of packaging product quality, and printing color difference is a common problem of printing product quality. In the process of printing process, there are many reasons for printing color difference, including the bad factors in technology and raw materials.
2. The printing color difference caused by the pressure discomfort is one of the conditions for ink transfer. Because the printing plate surface cannot be absolutely flat, the paper surface also inevitably has slight concave convex and uneven thickness. If the printing pressure is insufficient or uneven, the printing ink layer is prone to uneven thickness.
The quality of COTS plays an important role in the printing process of offset, relief and so on, which is caused by the bad three ink rollers.
Requirements for printing documents
General printing must be in AI vector image format. Please save logo and image design as EPS, CDR or AI document.
Text to curve.
If there are only pictures edited by Photoshop software, the original PSD document must be submitted, and the discrimination degree of pictures is not less than 300 dpi
If the customer does not specify the specific size of the logo when placing the order, we will determine the appropriate size for the customer. If the customer does not specify the printing area, we have the right to determine the location of logo printing according to the actual printable range of the gift.