If why pressworking,ghost shadow breakdown decreases in the process

Presswork the regular meeting in the process encounters problem of " of " ghost shadow, right now, film, forme has been made, correcting is not actual, the measure that only can adopt is pressworking namely level decreases ghost shadow phenomenon hard to lowest. Later development will combine offset press of 3F of 3 water chestnut to introduce how to decrease ghost shadow breakdown the lightest.
1. Generation reason
We want black-and-white a picture. As a result of two horizontal strokes have among Chinese ink piece set upright a Chinese ink piece, the Zhou Xiang that sets upright a correspondence of Chinese ink piece needs bigger ink stick to measure. Presswork in high speed however in, be like Mo Gun to go up cannot complement in time enough printing ink, what perhaps say to set upright a correspondence is horizontal a quantity of place Chinese ink is less than quantity of other position Chinese ink, easy generation lacks image of Chinese ink ghost.
2. Breakdown processing
Although the following method cannot keep clear of completely ghost shadow, but can lower it almost invisible rate however.
(1) adjustment supplies Chinese ink system. Because have vertical stroke the Chinese ink amount with layout larger need, the Chinese ink quantity that we can bolt the Chinese ink that sets upright a correspondence is increased, complement more as far as possible the quantity offerring Chinese ink of this part. But because string together Mo Gun's axial,move, to assure whole horizontal stroke Chinese ink color is even, set upright a corresponding place two side should reduce Chinese ink amount. Quantity of this Chinese ink is added string move the Chinese ink quantity that come over to be able to assure a horizontal stroke basically what Chinese ink measures is even.
(2) controls embellish edition fashion. Offset press of 3F of 3 water chestnut has means of edition of 3 kinds of embellish to be able to offer an alternative. Can undertake switch to 3 kinds of means at any time on remote control stage. When occurrence ghost shadow, use form of edition of another kind of embellish commonly. In means of edition of this kind of embellish, because deliver roller 2 with move Mo Gun 5, divide evenly Mo Gun 6 departure, because of this water roller 1 on the printing ink that stop cannot be delivered, thereby these redundant printing ink can serve as to Chinese ink part is being lacked on edition one complements, reduce ghost shadow thereby. And the water of means of this embellish edition fights roller revolution lowest, degree of printing ink emulsification is small.
(3) adjustment water supply is measured. We know, presswork in the process, water Chinese ink is a relative balance evenly, the content of fluid of edition of the embellish in printing ink is in 15 ％～ all can realize water Chinese ink to balance between 26 ％ . embellish edition fluid control is when the balance with Chinese ink much little water, value of printing ink emulsification is the least, relative to character, in amount of same move Chinese ink, emulsification degree is small, imprint the on the high side of the quantity that contain ink stick in tasting, imprint thereby the saturation that taste Chinese ink is bright-coloured, go up in certain level but effect of abate ghost shadow.
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