1.印刷網(wǎng)點(diǎn)變化規(guī)律(1)印刷網(wǎng)點(diǎn)增大的必然性。在印刷過(guò)程中,網(wǎng)點(diǎn)由于受到機(jī)械擠壓、油墨的鋪展及紙張的雙重反射效應(yīng)(見圖2-1),會(huì)造成承印物上網(wǎng)點(diǎn)面積比印版上相對(duì)應(yīng)部分的網(wǎng)點(diǎn)面積有所增大,這種適當(dāng)?shù)脑龃髮儆谡,F(xiàn)象,但要 (共 3489 字) [閱讀本文] >>