How to identify the quality of printed matter? Below, Ji'nan picture printing company will introduce us briefly.
Large background color, such as coffee, red, black and so on, to see color printing evenly uneven, good press uniform pressure, the color is also more natural.
Ink powder: a good press, the pressure is better, and naturally less likely to use a hand, a large smear on the hands of the situation.
Please note: the paper, paper quality is better not more thick, some of the relatively poor quality of the coated paper pulp, in the middle of coating, feel very thick, but this paper scraps of paper printing more adsorption on the ink is relatively poor. Good paper features: exquisite feel, moderate thickness, good expression of ink.
The quality of printing products have a great relationship with the electronic file, please use the above CMYK color mode, 300DPI resolution, vector software such as CDR, AI (with JPG, JPG layout is not suitable for the high level of quality requirements).
What are the skills in print? Below, Ji'nan picture printing factory to brief with us.
Ji'nan picture album printing
1, knife folding principle
Knifefold has high precision, the book please pressure, because of inertia folding, folding speed.
2, impact folding principle
With the help of longitudinal fracture of triangular plate, longitudinal fold along the paper won the first, the knife out of the hinge drum activities red folding paper, paper will be pushed to the two continuous rotation of the roll 4, the hinge post compaction, and transmitted to the receiving post flower drum.
3, roll folding hinge principle
The rolling type folding machine has high folding accuracy and fast speed, and is generally used in rotary paper press rotary printing press. According to the number of folds completed, fold the type, using a different number of folding drum and folding program.