While the internet has caused some people to transition away from reading hard-copy print to reading in only digital format, the printing industry is still a booming business. The printing industry processes virtually every item we come into contact with throughout our day; every tangible item containing pictures, letters or words has gone through some sort of printing process.
Here are a few of the main types of printing processes used today.
- offset lithography – printing is “offset” from a metal plate to rubber, then to the printing surface
- engraving – imposes ink onto paper using pressure
- thermography – heat and powder are used to create raised text
- reprographics – reproduction of graphics and images by mechanical or electrical means
- digital printing – inkjet or laser printers
- screen - mostly used in fabric printing; implements forced ink jets through stencils onto fabric
- flexography – use flexible plates with raised type or images. This type of printing is mostly used for labels
- gravure – employs impression rolls and is used for large runs of magazines and catalogs
During offset lithography ink is distributed onto a metal plate through rollers. The metal plate is dampened by water rollers and then by ink rollers. The perfect balance of ink and water is distributed to the plate, which has previously had the image or text to be printed transferred on to it. The plate then transfers its image to a rubber blanket, which in turn transfers the image to the paper.
Because the ink is still damp after going through the offset lithography process, there is a risk of the ink smudging. This is where combustion comes into play - in order to avoid smudges and dry the ink, the paper passes through an oven. The oven, gas fired by combustion burners, is operated between 300 and 400 degrees Fahrenheit. After going through the oven, the paper is then sent over chill rollers in order to be cooled down before going through quality control and slicing.
Because printing equipment moves at such a rapid pace it is important to keep all of the printing equipment, including the combustion equipment, well maintained in order to keep your process running smoothly, efficiently and effectively. Stelter & Brinck is one company that can help keep your combustion burners tuned and well maintained. For more information on Stelter & Brinck’s combustion field services and how they can help you maintain the burners in your printing process please call 513-367-9300 or visit http://www.stelterbrinck.com/combustion_burner_field_services.htm



