机械打样的工作原理及工艺流程简析（Brief analysis of working principle and process flow of mechanical proofing）.docVIP

机械打样的工作原理及工艺流程简析（Brief analysis of working principle and process flow of mechanical proofing） Brief analysis of working principle and process flow of mechanical proofing Is the use of mechanical proofing proofing machines, and in the same printing conditions, transfer printing graphics and text on the ink to the substrate, method of printing small batch. This method of proof fully simulated printing method is realized to transfer ink pressure principle, can more accurately reflect the characteristics of the plate and the printing process, and printing proofs are consistent. Working principle of mechanical proofing It includes two processes: work stroke and auxiliary stroke. The work stroke refers to the movement process of the drum from left to right, the first is to layout the inking roller ink, rubber drum with roll layout, transfer layout of ink to the blanket, then stick to the layout of water supply water, prevent the plate dirty, when the drum rack to continue to run through the paper when put the blanket on the transfer of ink transfer to paper. When the drum frame back to the right endpoint is to complete a cycle of work process, in the process of water cycle and stick rollers after the paper has been raised. Auxiliary stroke refers to the movement of the roller frame from right to left (viewed from the operating side). Before running the roller frame in a right endpoint, stick with water to keep enough water, the ink stick to add ink to the left running roller. After version Taiwan water roller and rollers in turn plate water table version of inking, finally arrived at the left end point by the water to supplement water stick stick fountain solution, this trip always raise the rubber roller, it is until fall under. Proofing process The process of lithographic proofing is: upper plate, dampening, inking, paper feeding, color washing, ink and post treatment. One, the last edition The upper plate refers to the process of clamping the plate onto the plate of th