HELP ME....... Im New student in Printing..........

[faznur idza]

Hi.. im faznur.. i have a problem to make my report about Offset Lithography Process Control. this report must submit on 22nd april 2008.. until now i didn't get the information about my report even i search the internet...until i find this group..... i hope anybody can help me as soon as possible... tQ....
My lecturer give a question... the question is.....

1. Why should colour bars be use?

2. How to measure the colour bars? Describe the equipment used to measure the colour
patches.

3. Explain about the various measuring patches color bar?

4. Why is it necessary to ensure that the cmyk ink supplied conform to the required
standards? Explain their implication on the printed result.

5. What is the result of running higher solid densities of c,m,y,k then recommended for a
particular substrate e.g. coated paper.

6. What do you understand about ink trap? Why is it important to control it in printing?

7. Explain the relationship between in film thickness and ink saturation when referring to
solid density.

[nakulpadalkar]

hey look for a book "Handbook of Printmedia; Springer publication" you will get all the answers u need

[faznur idza]

Hey Nakul, thanks for the help me... ermm but
how and where can i get the book??

ok, today i will go to library & bookshop and try to find the book..... thanks you so much.....

Edited by: MizzFano on Apr 22, 2008 12:48 AM

[jaclark]

I'm probably too late but here you are anyway. The attached PDF is a portion of a Flexo specification document that was created by the FIRST committee. I'm a Flexo specialist, sorry.... but when translated it will give you the answers to many of the questions you have. Flexo typically strives towards SWOP Offset standards.

QUESTION 1. See section 19.1.4

QUESTION 2. Spectrophotometer and Spectrodensitometer are two different device types (look them up on the web, X-rite is one of the most popular)

QUESTION 3. See section 19.1.4

QUESTION 4. See section 19.3.2.3 explains in part and if you skim through the whole print section you will find other explainations.

QUESTION 5. Many possible things resulting from over or increased saturation, Ink wasted (Costly), Ink transfer problems from being to wet, wetter inks create more hue shifts in the ink traps, increased dot gain, etc.

QUESTION 6. See section 18.5.2.4 INK TRAP

QUESTION 7. See section 19.1.2.1 SOLID INK DENSITY

Good Luck,
James

PS
PDF wouldn't go so I will try your email......

[nakulpadalkar]

U can search that book on net books.google.com,

I found some stuff in my collection, it may answer most of your questions.

check ur mail.

Bye TC

[faznur idza]

Dear james....
I already received your email.. its really help me to accomplish my report. Your kind professional assistance in this matter are really appreciated and thank you so much, I hope we can keep in touch together to share knowledge, experience and everything about education................

PS
James, I ca't found the section 19.3.2.3.....
Your email is very helpful... thanks again...

[faznur idza]

Dear nakul....

thank you so much.... ur email also really helpful
I really appreciate that.
I hope we can keep in touch together to share everything about education..... ^_*

Thanks agains........

[marktonk]

Hi Faznur,

The link below is to a PDF on Color and Quality, this will answer some of your questions.

Good luck,

Regards,

Mark

http://www.heidelberg.com/wwwbinarie...uide_color.pdf

[aqazi81]

Anybody can share Handbook Of Print Media through e mail? i shall be very thankful...
aqazi81@gmail.com

[samuelsun]

I also want this book ..Please who know about this book please inform me from where i will get??Thanks in advance ...