Today in the BBS see on paper. The effect is using digital proofing, proofing manufacturers behind modifying only a text file, the manufacturer USES ordinary printer color out a, that guest sign. The results come out color printing off color. The payment for goods has paid off all the guests. Q do?
Yesterday we printing a beer TaiKa propaganda. The customer the design of your own (and old customers). And in JinYin straight out to print one, with 157 grams of double copper straight out, color is bright beautiful. Order entry, the requirements of the guests with 250 grams of single copper, TaiKa sure to put in on the table.
Order entry, already say with less than, the customer not afraid, color printing it. The goods time too late.
The printing process, beer bottles of red always not enough red, the rest of the local red too hard. The difference is too big, can't print. Customers drive to plant, color said personally seen again so, making too late. As far as possible will increase, a little red blue a little bit small.
That such off color why the difference, so why the big?
Reasons are as follows
1 the digital straight proofing, printing, using 157 grams of double copper, and file the customer has changed. Many customers said documents when I was a little shrinkage or change the file. But sometimes they have no intention of reform. But the new documents have pull, direct the film printing. So this time off color is bigger, also is one of the main sources of off color
How to avoid it?
1, as long as the document revision, must pull. If color is demanding, best yes, with what kind play traditional paper printing, use what paper to pull. Do the uniformly, so will off color plugging in the source. Especially new customers have to do so. Digital sample line not? Line. But also does not have a traditional kind. Digital proofing must be in manufacturers there dozen, general manufacturers have CTP. Digital printing machine and the parameters of the move into a to playing like this, out of the digital kind, printing and color can reach more than 9 into. Unfortunately, many CTP printing manufacturers, not tuned to a printing press parameters, or not.
2, the design problems, a lot of stylist doesn't understand printing or know some of the printing, not professional design, so out of the file looks very good, it's hard to do. Like many designers will be made when black C, M, Y, K100 % field, the longitudinal glancing to printing, yes this black is very nice and printing? Increase the difficulty, so big ink amount, it's hard to control. Especially, due to the large amount of ink flimsy, difficult to control ink printing paper, balance, it's hard to go walk good, often stop. This color which have no deviation, all the way out of the printing, and all the way off color. And four color into the flat out only one color nets, no control, color difference is bigger.
How to do, to avoid it?
To demand higher color piece to special color printing ink, especially in large quantity or flat nets color piece. If big ink amount can't to special color printing, in big blocks of colour don't do small font or picture line, to increase. The more can't make four-color printing, anyhow method is there
3, process press the row be reasonable, in rows before the project, single single, the process by a row
4, color, the captain of the main sources for improper operation.
Now more and more advanced, the captain for printing the requirements of printers requirements before many not so high. Many of the control for the captain color is very poor. In ink painting not under the premise of balance, with a few pieces of printing color sample, close to the printed, all the way down the paper went to bed at all, adjust the ink amount, all the way off color. Where there is no off color.
So printing color difference is inevitable, but too much deviation of off color can avoid.