Flexographic Printing: A Modern Approach to High-Speed Printing
Flexography, often abbreviated as “flexo,” is a versatile printing process that utilizes a flexible relief plate. It has evolved from traditional letterpress printing, incorporating high-speed rotary functionality. Flexography can be used to print on various substrates, including plastic, metallic films, cellophane, and paper. Let’s delve into the details:Get more news about
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History
The first patented flexographic press was built in Liverpool, England, in 1890. Unfortunately, the water-based ink used at the time smeared easily, earning the press the nickname “Bibby’s Folly.”
By the early 1900s, European presses using rubber printing plates and aniline oil-based ink emerged, leading to the process being called “aniline printing.”
In the 1920s, most presses were manufactured in Germany, where the process was known as “gummidruck” (rubber printing).
In the United States, flexography gained prominence in food packaging during the early 20th century. However, concerns about aniline dyes led to a decline in sales.
To improve the industry’s image, the process was renamed in 1951 through a reader poll, and “flexographic process” emerged as the chosen name1.
Evolution
Initially, flexographic printing quality was rudimentary. High-quality labels were typically printed using offset processes.
Since 1990, significant advancements have occurred in flexographic printing:
Photopolymer printing plates have improved, enhancing both plate material and plate creation methods.
Ink systems and printing inks have also seen substantial progress.
Flexography now competes with other printing methods for quality and versatility.
How Flexography Works
Flexographic printing involves creating a positive mirrored master of the desired image as a 3D relief on a rubber or polymer material.
The flexible printing plates, made of rubber or elastic photopolymer, are clamped onto large printing cylinders.
Ink is applied to the printing plate and transferred to the surface of labels or flexible packaging substrates.
Flexography is ideal for printing on non-porous materials, making it suitable for food packaging and large solid color areas.
In summary, flexographic printing has come a long way, offering high-speed, efficient, and versatile solutions for various industries. Its adaptability to different substrates makes it a valuable choice in today’s printing landscape.
