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Dear Friends, What is the Best quality ink brand for printing High-end art catalogs? I have been using inks from a Japanese company, Megami Inks. To be a little more specific: The company had a nice spot Violet ink in the past, that created a nice saturated Blue when combined with Cyan base...

What causes moire on printed images? The effect is not in the digital images, so they are definitely the result of the press. They are on some (not all) pages with grayish neutral backgrounds. I am suspecting the lines are caused by the screen angles. Although they are very fine lines at around...

Hi Printers, Does the CMYK color bars on the sheet edge show the color layout order? Which color was first and which was last? I always thought the layout order was 1st Cyan, 2nd Magenta, 3rd Yellow, 4th Black. But seems like it is not the case. I am using an additional Violet spot color...

Press Thumbnails to view in larger size. Original artwork detail Moire pattern example Cyan channel Screen angle Magenta channel Screen angle Rosetta pattern

Alibryan, Good suggestion. I will try to post the photos here. I also thought that AM and FM screens should not differ in price. Since the only difference is placements of the dots and it doesn't cost extra electricity or anything. Seems like the company is not very honest about the price. I...

Thanks Adil, I agree. The first rule of thumb in haltone printing is probably screen angles. But they did use the same angle for Cyan and Magenta. I mentioned this to the artist who is in direct contact with the printing company. The artist went abroad to make the second test print of the plate...

We are having an overseas company make a print on porcelain plates. As I understand, they use a halftone screen printing technique for this, similar to CMYK book printing. Although I don’t know much about plate printing and what type of printing it is, I can see some moiré problems on the print...

I am designing a catalog for 889 x 596 mm paper and have to consider how large and how many pages I could make out of this sheet size. I want to know the width of the printer marks. And which sides these marks are put on. So that I can calculate the trim off part including the bleed. If you...

I don't have an experience with florescent inks. But what I learned from printing with 5th color is this. If you are going to print parts that are gradiated and mixed with other 4 colors, you have to take the color plate angles into your concern. Each color has its own angle of coverage...

Thank you xfactor for answering my question. It was helpful in my learning process. I would like to learn about the term "excessive bloating". Does it refer to PDF file from an image that had high pixel density? I am sure my previous entry wording was not so clear. As a result you mostly wrote...

No one wants to answer my question? Or may be I didn't put my question clearly.

I design books and catalogs. I have a question about preparing images for press. If I prepare my file for a book on Indesign and submit it to the printer, does it go through any pixel based program (such as PDF or Photoshop) at the print shop? Or do they convert the pages directly to printing...

Thank you for recommendations. I read the print guide blogspot and contacted the administrator. He gave me some good advice that might help me in the future. In the meantime I would like to learn about CMYK color profiles. The colors are turning out muddy on this job. I am guessing that it may...

Today I went to the print shop and asked for the screen angles. They said C15, M75, Y90, K45 degrees. But they don't know the angles of the 2 spot colors. I used two types of blue colors, each on different images for the most part. Their system doesn't show the angles and frequencies of the spot...

Sample images Here are couple of scans from the print. You can see tiny patterns on the saddle and tails of the laying horse and on the neck of the cropped image. The patterns may be more visible to the naked eye than on the scan. Please click the image for larger view. If you have any idea...

I am printing an art book with spot colors. Yesterday we started the printing, but there was a problem with the spot colors. The Blue areas in the artwork use Spot color + Cyan(60-80%) + Black(3-10%). The application of the spot color is not flat or 100% solid, but it is continuous tone...

Thanks for the reply. I asked about that matter from the supervisor of the print shop again. He said that he bought the ink from a local shop that sells Chinese products. Chinese paints usually have numbers beside the color name. And those numbers can be only reference for that actual brand. So...

I was trying to find a right ink for my custom spot color. I saw this very saturated blue ink in one printing supply shop the other day. And the shopkeeper told me that the code for this blue was 453. Today I saw the same ink in a local printing company and the supervisor also said that the code...

Hi again, It has been very long since I started this thread. But finally I was able to make a test print using the Spot Blue colors. The quality of the blue color has improved a lot. But the tonality and the integration of the spot color with the rest of the standard colors is a mess. I have...

Some more questions Thank you very much for the input. I would like to clarify few things. Is there optimum Raster resolution for the FM screening, such as 400, 600, or 1200? For the standard AM screening it is 300 dpi. And do I need to prepare images for the print? Most people don't know that...