Resource

  Paper Stocks
Printing Glossary
Tips On Printing
 
File Preparation
Avoiding Common Mistakes with Files
Graphic file formats
Rich black versus plain black
Preflight checking in InDesign
About Coatings
Densitometer
About Proof




 Yep, that's it.
Hey, I got the shipment today. They look AWESOME! Let me know if you want me to write some kind of testimonial you've been absolutely a pleasure to work with, fantastic communication (which was a concern of mine given the distance and language barrier), and the final product is FANTASTIC. Thanks, Roger. Can't wait to get the next one going!

Jason Neulander


Density is the level of darkness in a negative or positive film or print. The measurement of density is called densitometry. An instrument called a densitometer is used to measure the density.

The density of a photographic positive or negative is a result of the amount of silver dye developed in the film or photographic paper. In printed copy, density is caused by the light-stopping ability of the pigments in the printing ink that are deposited on the paper by the printing process. Densitometers are widely used in the graphics industry to help control color in each step of the printing process.


Types of densitometers

There are three types of densitometers:

  1. Transmission - A transmission densitometer measures the amount of light transmitted through a transparent material. It determines the opacity for different areas of an original transparency or of the processed film negative or positive.

  2. Reflection - A reflection densitometer measures the amount of light being reflected from a surface, such as a reflection original. The reflection readings are also used to calculate total dot gain, hue error, grayness, and other characteristics in printed pieces.

  3. Combination - A densitometer that measures both reflection and transmission densities.

Density and opacity are the same thing but they are measured differently. Density is measured with readings that run on a scale from 0 to 4.0, with the highest number having the greatest density. Opacity is measured in decimal numbers ranging from 1 to 100. The higher the number, the great the opacity.



Densitometer readings are different for different types of substrates. For example, for optimum print reproduction on newsprint, the recommended densitometer reading is 1.4 to 1.8 for a black and white print and 2.5 to 2.8 for a color transparency.


Measuring colors with a densitometer
To measure color, a test strip across the edge of the proof or press sheet is used. The test strips are called color bars, print control strips, color control bars, color control strips, or proofing bars. The different strips are available commercially from several vendors. The usual targets on a test strip are the dashed ink density, dot area/gain of the quarter, half, and three-quarter tints, contrast, and the trapping of ink overprints.


Home   |   Privacy Policy   |  About Us   |   Products and services   |   Capabilities   |   Printing Offshare   |   Resource   |   Contact
Copyright © 2020 Union printing Co., LTD All Rights Reserved.
Phone: +86-574-27889688  Fax: +86-574-27889688
Email: sales@printingunion.com



Books printing:
● Catalog printing
● Magazine printing
● Booklet printing
● Brochure Printing
● Hardcover books printing
● Paperback books printing
● Reference books printing
● Yearbooks printing
● Trade books printing
● Educational books printing
● Pop-Up books
  Packaging Printing
● Paper boxes printing
● Cardboard boxes printing
● Rigid boxes printing
● Custom boxes printing
● Cosmetic boxes printing
● Wine boxes printing
● Christmas boxes printing
● Shopping Bags printing
● Paper Bags printing
● Merchandise Bags printing
  China Printing
● China offset printing
● Cheap printing
● Discount printing
● Commerce printing
● Color printing
● Business printing
● Printing services
● China printer
● Chinese printing
● China printing company
● China printing factory
● China printing supplier
● Printing Outsource
● China Printing Solutions
● Printing china
● China Printing Manufacturers
       
Children’s book printing
● Cardboard Books printing
● Touch/Feel Board Books printing
● Irregular Board Books printing
● Sound/voice board books printing
● EVA board books printing
● Plush Board Books printing
● Pop-up board books printing
● Puzzle Book printing
● Comic Books Printing
  Gift Items Printing
● Greeting Cards printing
● Card Boxes printing
● Address Books printing
● Albums printing
● Gift Boxes printing
● Gift Bags printing
● Gift Books printing
● Photo Frames printing
● Wrappers Printing
 
       
Game Set Printing
● Board Games printing
● Playing Cards printing
● Activity Sets printing
● Puzzles printing


  Stationery Printing
● Notebooks printing
● Diaries Printing
● Notepads printing
● Journals printing
● Exercise books printing
● School notebooks printing
● Calendars printing
● Envelopes Printing
 

统计代码