In the printing industry, there are nowadays two widely applied types of printing technology. That is Flexo printing and Offset printing. Offset printing may be quite familiar to many people, but not everyone understands about Flexo printing and its operating principle. Therefore, let's find out more details about this unique printing technique with Vietbox.
What is Flexo Printing?
Flexo printing (also known as flexography) is a technique to emboss an element of your printed design (images, letters, etc.) on the printing mold that is higher than the non-printed elements, especially the images on the printing plate must be in the opposite direction. The ink is provided by anilox shaft then transferred directly to the printing material in the printing process.
Flexo printing (also known as flexography) is a technique to emboss an element of your printed design (images, letters, etc.)
Flexo printing technology is mainly used for printing catons, goods labels, films, labels, stickers, packaging labels, …
Operating principle of flexographic printing
When flexographic printing, it must be based on the operating principle of the anilox shaft. The anilox shaft is a concave surface metal shaft with many small cells. When the shaft is partially immersed in the ink trough, the ink follows the small cells to the inside of the shaft. Excess ink on the surface will be removed with the ink knife.
The printing mold (usually made of photopolymer, CTP-direct computer or laser engraving) will contact and receive ink from the surface of the printing plate and then transfer it into printing materials. Images or letters will all be embossed on the printed material quickly and opposite to the image on the printing plate.
Why did FIBC manufacturers choose this technology?
The reason why Jumbo bag needs to be Flexo printed is because this printing method has advantages that are hard to find in other printing methods such as:
Although Flexo printing still has some limitations such as a long printing time
• Print quality from Flexo machines can meet many different printing requirements such as printing brands, logos, images... with relative sharpness.
• Easily print on a variety of materials.
• The cost is much cheaper than printing by offset method.
• Good ink adhesion, quick drying and no color smearing.
• Detachable shaft for printing samples.
Although Flexo printing still has some limitations such as a long printing time, occasional technical errors in the printing process... but with its low cost and above advantages, this method is still chosen popularly.
What is the application of Flexo printing technology?
Because of the above advantages and characteristics, Flexo printing technology has been applied a lot in life with good quality printed products and affordable prices. This printing technique is applied in some fields:
Flexo printing on Jumbo bags
After learning about Flexo printing, you probably already know that this method produces uniform printed products with bold ink colors. Because manufacturers often use solid colors with anilox shafts to guide the ink in this method. Therefore, it is often used for packaging bulk bags. The bags printed by this technique all have eye-catching images, fast production time and affordable prices. Recently, Epp.vn specializes in manufacturing and supplying FIBC bags, also known by many names such as Jumbo bags, big bags, bulk bags, container bags...
Flexo printing on other materials
In addition, this printing technique is also used to print goods decals, films, ... on many special materials such as fabric, cardboard, polymer film, etc. Moreover, this printing method can be used for rolls of materials for automatic gluing machines too.
About the images, Flexo printing produces a print quality that is not as high as other techniques. However, it is still widely used with the advantage of large production capacity and low cost. In particular, the automatic closing system right after the printing process of Flexo technology helps manufacturers save time and effort. For example, when printing decals, the excess of the product will be peeled off quickly from the base.
As above, I introduced you to Flexo printing technique as well as the operating principle and application of this method. Hope that this article will help you answer your questions.
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