Printing Plates

Printing processes such as offset lithography use printing plates to transfer an image to paper or other substrates. The plates may be made of metal, plastic, rubber, paper, and other materials. The image is put on the printing plates using photomechanical, photochemical, or laser engraving processes. The image may be positive or negative. Typically, printing plates are attached to a cylinder in the press. Ink is applied to the plate's image area and transferred directly to the paper or to an intermediary cylinder and then to the paper. The printing plates used depend on the type of press, the printing method, and quantity of the print run. A plate is prepared for each color used, or four plates in the case of 4-color (CMYK) process printing. In general, metal plates are more expensive but last longer and have greater accuracy. Paper plates are usually more suitable for shorter runs without close or touching colors.

 Offset Lithography
The function of the original stone printing surface is now served by thin aluminum plates, although other materials, such as stainless steel and plastic, can also be used. The plates are wrapped around the circumference of the printing cylinder and make direct contact with the rubber blanket cylinder. Rubber rollers carry ink and water to the plate surface. The ink is transferred first to the blanket cylinder and then to the paper.

Lithographic plates are the least expensive printing surfaces available today, and this fact has contributed greatly to the success of the process. Aluminum plate materials have a thin surface coating of light-sensitive material, such as a photopolymer, that undergoes a solubility change when exposed to an intense source of blue and ultraviolet light. Images are transferred to the surface by exposing the plate through a film positive or negative. Some materials can be exposed directly, as in a graphic-arts camera or by a computer-controlled laser beam, thereby eliminating the expense of film and speeding up the plate making process.

Modern offset lithographic presses range in size from small sheet-fed duplicators-used for small, single-color jobs such as brochures and newsletters-to massive web presses capable of printing millions of copies of magazines, catalogs, mailing pieces, and packaging materials in full color. No other process has such a broad range of applications.

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Think of what you need, and it is more than likely that we, at Printing Channel are able to provide it. Printing process is much more complicated and systematic than it looks. Each and every factor like Water, Paper, Ink, PS Plates, Blankets and other things are dependent on one another. If one part is not working as it is supposed to be the end result will be not up to mark. Even poor Conductivity of water can cause problems in printing. As there are varieties of substrates available for printing each and every substrate have it's own properties and so do inks. In printing the problem can cause anywhere and anytime. Your question may be regarding standard inks, color matching, technical services, printing accessories feel free to ask us. Quality should never be compromised, so reach us to learn all about our Products. We will continue to offer you innovative solutions and the highest quality products and services.

Solution to Common Printing Problems

Troubleshooting Guide - Advanced Printing Problems

Our Parent Company

Printing Material Corporation

Established in 24 april 1967
Location: Jalandhar City, PUNJAB (INDIA)

Our Branch Offices

Handa Sales Corporation

Established in 8 August 1990
Location: Ludhiana City, PUNJAB (INDIA)

Sachin Sales Corporation

Established in 5 May 2003
Location: Amritsar City, PUNJAB (INDIA)

Technics PolyFilms

Established in 6 January 2010
Location: Jalandhar City, PUNJAB (INDIA)

To give our customer best possible services we are having our offices in all the major cities of PUNJAB. As we are covering all the small towns with our technical staff and sales representatives it makes us to reach each and every customer in PUNJAB.