What is a film to film?

Film is film , is the old translation for the film , now generally refers to film, can also refer to the printing plate in the film.

LEXAN PC materials are added into the enterprise-specific UV, anti-aging up to 20 years, are black film , film corners generally have a sign in English , is the film 's numbers , indicating that the film is a C, M, Y, K in which one is cmyk one ( or spot color number ) , which means that this film is what color output , and if not, you can see the hanging angle , to identify what color . Stepped color bar next to the dot density is used for proofreading .

In addition to the color of the dot density to see whether it is normal , or one is watching CMYK, color bar in the lower left corner is C, the color bar in the upper left is M, in the upper right corner is Y, in the lower right corner is K, so long as according to the color of the printing CMYK know it. That in order to facilitate the development of the concentration of test film , the film has a color code on the corner piece . As for the number of color print film based on each piece of network cable to set.

Outlets on the film is to tell you, " Here's this level of a certain color ," for example , plain text version , only one black , a film version of the child only if you use red ink printing, the print-out is red . Films represent a color , the color printing , a minimum of four pieces of film , representing the C, M, Y, K 4 colors ! It can be four spot colors, spot color film is a separate file output into K version .

Next color CMYK not indicate a specific value , but with the control , inspection and meets the requirements of the film . Some habits are unfinished moldings ( crop marks , registration marks ) after himself and then the solid mark on each version of each version of the name. For example , marked C, M, Y, K, specifically silver , respectively, then fill in blue, red, yellow , black spot color and spot color version on the way, the film has a logo on it and is particularly intuitive. The color-coded size 10 * 5mm, and CMYK color of paper marked with letters of the alphabet , color and color names one by one. Copy the workers will be able to see the film edges . In general, the angle of the film outlets are fixed , like the yellow version of the screen angle is 90 degrees. There are exceptions , if the image of the yellow expression concentrated in the range of 90 degrees , so you can not use 90 yellow corner , otherwise traces of hanging on too obvious !

In the usual sense , a color , a color bar should play , in order to check the color of the film in the process, the situation of each of the step density becomes clear tannery , generally four color bars , and arranged very neat . Most colors are obtained by a combination of these four colors more , then each film are black but they represent different colors C, M, Y, K, look proportion to know, and then by printing four-color inks .

Want to see the results before printing the actual printing , there are three ways :

First, the first out before the film good quality inkjet draft ( cheap, but not easy to see prospective ) ;

Second, the number of copies available more digital printing test print first few confirmed after the film, before the printing machine ; small number directly using digital printing fast and cheap ;

Third, make a film after film company proofing ( first try with a proofing printer finished printing 6 ) , which is the most traditional way , the price is not low , slow , but good results

Follow-up:

The benefits of CTP plate Bifei Lin published in what ah ? ?

Answer :

CTP is to CMYK four-color separations to the PS version , it is compared with the film version will be more clean, do not throw outlets, improve print quality and speed.

Added:

Here are some detailed comparison

A traditional film workflow and CTP process cost comparison .

Many are not familiar with the printing on the CTP process , a simple comparison of PS and CTP plates edition price , draw conclusions apply CTP too costly , it is not true , as we have for the entire production process and cost comparison analysis and discussion about the CTP Compare the cost of traditional printing processes and processes .

Traditional graphic production process electronic documents - Film ( film ) output- proofing copy , change the sample copy - Printing -

CTP process electronic documents produced graphic digital proofing - batch sample , change the sample output - CTP printing plates

Taking a firm offer:

Film Film 53 yuan m 2, the traditional proofing recycled PS version 20 yuan off the plates, printing PS plate 30 yuan off the plate ; digital proofing using glossy photo paper 6 yuan m 2, CTP printing plate 80 yuan m 2, CTP plate was about 2 yuan per version basis for the calculation sheets . to produce a four-color 1037mm * 770mm live parts as an example

A traditional film process costs

1.037 m * 0.77m * 53 * 4 + 20 * 4 + 4 * 30 = 169.28 +80 +120 =$369.28

2.CTP process costs

1.037 m * 0.77m * 6 + 1.037m * 0.77m* 80 * 4 + 2 * 4 = 4.79 +255.52 +8 =$268.31

From the above analysis we can see that the data material costs alone , the cost of CTP systems are not as high as people think , the other film process costing significantly higher than the cost of CTP , the overall is actually quite ; another on labor costs words , film CTP workflow process more than the three links , CTP process one person can accomplish , and film the process takes at least five people , so the film craft labor costs more than three times higher CTP technology ; analysis from the printing machine view , CTP printing machine ink balance speed, according to data provided by the manufacturer practical application , in general as long as 10 to 20 over the paper version will be able to reach equilibrium ink , but with the film printed copy machine you need at least 50 more sheets of paper version too , since it appears on the printed paper waste is reduced a lot.

Based on the above analysis CTP process operating costs lower than traditional film process.

Two . CTP workflow and output to film the process from time to compare the printing machine

Process film ( 4 color off set ) Time ( min ) CTP version ( 4 color off set ) time ( min )

Output monochrome film 4 20 30 monochrome photos CTP4

Renewable edition copy sun 4 40 None 0

Proofing color proofing 4 times 80 digital proofing ( completed before publication ) 20

Monochrome copy version 4 40 None 0

Total 180 minutes 50 minutes

With the plate making, printing market competition continues to intensify , the printed product cycles are getting shorter , the time required is very important , in the actual production customers often require the completion of live parts output in 3 to 4 hours , print full process , in this case , if the use of CTP process , customer requirements can be met if the traditional film process , there may be delays in delivery of live time , damage the interests of customers , so that enterprises suffered losses .

Three quality comparison . CTP process the output of traditional film products and processes the output of products

CTP process is a fully digital workflow, from data to produce output data to the CTP printing plates , the whole process is not affected by people, the environment and other factors, entirely under computer control . Truly reflects the WYSIWYG effect . CTP plate process output can easily be made as small as 1% to 99% of the large dot and the dot size can be artificially adjusted to bridge insufficient printing on the printing performance .

The film output is different from the output to the addition of a make- printing machine , copy and other processes , and these processes are associated with multiple variables, people , environment , humidity , temperature, etc. have great relevance in the copy during the dot loss is inevitable, artificial imposition four-color overprint is often allowed to appear under normal circumstances , after a copy outlets below 4% is not visible , always lost , and more than 98 % of the network will paste the sun , so express high levels of light and dark tone prints will be greatly affected.

Therefore, both the output process using the CTP version of repeatability , reducing outlets or register accuracy than using film has greatly improved , especially can enhance the overall quality of products enterprises .