I understand colour separation, but I'm not sure about designs where you have multiple colours that are in contact with eachother, especially intricate designs.
would both pattern colours need to be extracted or would the majority colour always be used as a base with the other colour printed ontop to create the pattern effect?
hope that's understandable. if not, i'll elaborate.
secondly, say i wanted to do a 2 colour print of a globe, green for the land and blue for the sea.. ok, say the blue layer is going to be on the bottom with the green layer overlayed.. which would most commonly occur
a) complete blue circle printed + green overlayed
b) blue circle printed with gaps (straight through to shirt) wherever the green ink will be printed
It actually looks like aplique (spelling???) which is a process of taking printed material and basically ironing it on to a a shirt. I think thats right, Fluid, care to chime in?
That design can be screen printed easily yet would require many colors.
The best way to print a design like that would be to print a white underbase and all top colors butt registration. Stacking of inks will only result in a bullet proof print and can cause all sorts of issues on press. If printing on top of each other you would need to flash between each color as well making the run longer and more costly.
Second question would be "B". Cut out for the reasons stated above. A slight trap will help with registration issues on press yet normally I would butt register the job.
That design can be screen printed easily yet would require many colors.
The best way to print a design like that would be to print a white underbase and all top colors butt registration. Stacking of inks will only result in a bullet proof print and can cause all sorts of issues on press. If printing on top of each other you would need to flash between each color as well making the run longer and more costly.
Second question would be "B". Cut out for the reasons stated above. A slight trap will help with registration issues on press yet normally I would butt register the job.
is there a 'preffered' method of doing this? if all my art is in vector format, but each colour has been drawn on-top of each other i.e colours are layered ontop of eachother.. is there a way to 'knock out' the underlying colours so that colours are butt registered instead of overlayed - or would this need to be taken into consideration when designing.. keeping colours on seperate layers and only drawing a colour where it will be printed?
no way your going to get those perfect solid colors using 4 colors. You would see the mixing on the shirt. the image looks to be specific solid spot colors. It could be printed with less like you mentioned yet I do not believe this shirt in question was printed that way.
no way your going to get those perfect solid colors using 4 colors. You would see the mixing on the shirt. the image looks to be specific solid spot colors. It could be printed with less like you mentioned yet I do not believe this shirt in question was printed that way.
Really? I really only see 4 solid colors here. Am I missing something?
lol. It does kind of hypnotize you if you stare too long.
__________________ Newell Graphics - Eco-Friendly Water Based Screen Printing ScreenPrintH2O.com - A Online Community of Waterbased Screen Printers
a major headache later Your right. it does look like 4 colors. with the image being so small the patterns and colors are merging causing me to see more. My bad
Hey we all screw up every now and then. Nothing was read into your post at all and I appreciate the correction. Nuttin like giving/getting the wrong advice
I don't mean acutally printing them, i just mean prepping the art. If you use spot colours in illustrator you can define which colours to print, it automatically knocks out colours that are covered up. I don't think I've explained that very well but it'll have to do for now..
That I do not know. In Corel yes and the in prog separations engine would separate it for you if the colors were specified in either cmyk or pms spot colors
Preparing complex art. 
