Web Offset Printing Machine

Views:
 
     
 

Presentation Description

To find more information about web offset printing machine and manufacturers of web offset printing machine from tradeindia web portal.

Comments

Presentation Transcript

slide 1:

Web Offset Printing Machine

slide 2:

Offset Printing Offset printing is a commonly used printing technique in which the inked image is transferred from a plate to a rubber blanket then to the printing surface. When used in combination with the lithographic process which is based on the repulsion of oil and water.

slide 3:

web offset printing Web offset is a form of offset printing in which a continuous roll of paper is fed through the printing press. Pages are separated and cut to size after they have been printed. Web offset printing is used for high-volume publications such as mass- market books magazines newspapers catalogs and brochures. Two methods are used in web offset printing Heatest Method :-In the heatset process the ink is dried rapidly by forced-air heating. Coldest Method :- In the Coldest process the ink dries more slowly by ordinary evaporation and absorption.

slide 4:

There are two types of Web offset printing machine are use High speed commercial web • Used mostly for high volume printing such as publication newspaper book advertising etc. • Speed: 900 - 3000 ft/min • Heatset - ink dries by heat • Combination sheeters and folders • Prints both sides of the web at the same time. • "Half-web" meaning web widths in the 25" range • "Full-web" meaning web widths in the range between 33" - 56" Small narrow Web • Used mostly for lower volume printing such as business forms small publications etc. • Speed: 300 - 900 ft/min • Coldset - ink dries by air and absorption into the paper • Roll to roll or roll to sheet or roll to fan-fold • Able to perforate punch etc. • Width ranges from 11" to 25" Features of Web offset printing machine • The main advantage of offset printing is its high and consistent image quality. • The process can be used for small medium or high-volume jobs. • Bigger printing process very easy. • Quality Printing.

authorStream Live Help