Application Misunderstanding and Advantage Analysis of Flexographic Printing Process

1. Product suitability

At present, flexographic printing technology has made great progress. The quality of flexographic products has been significantly improved, and it has achieved good economic benefits. It has basically been able to meet the needs of packaging and printing; in particular, the quality standards of UV flexo printing are precisely matched in color It also surpasses offset printing in terms of stability and stability. This is the best process choice for some products that require stable solid colors, such as adhesive labels and folding cartons.

Nowadays, the flexographic printing technology in the world is mainly adapted to the field: medium and narrow flexo printing machines are mainly suitable for trademark labels, clothing tags, boarding passes, luggage labeling tapes, folding cartons, stationery, small cartons, paper bags, plastic portables Bags, wrapping paper, paper cups, wallpaper, etc. The wide format flexo printing machine is mainly used for corrugated carton pre-printing, film, aluminized film, liquid packaging (such as milk Tetra Pak, fruit juice leisure bag, etc.), food, fast food, cosmetics, pharmaceutical packaging and other printing.

Domestic packaging and printing companies are often prone to misunderstanding the suitability of flexographic printing products:

First of all, the understanding of the flexo printing process is not comprehensive, and the characteristics of flexo printing are not fully understood. It is customary to go to the higher definition of the screen line and the gradation level of the dot compared with the offset and gravure printing.

Secondly, the lack of perfect flexographic quality evaluation standards, and there is no unified standard for communication with customers, causing certain misunderstandings and differences.

Third, there is a lack of professional flexo designers, operators, and market development personnel, and cannot fully utilize the advantages of flexo products, such as ink layer thickness and color saturation;

Fourth, it does not take advantage of the strong advantages of flexo press linkage, combining multiple printing methods and post-press processing techniques to improve production efficiency and reduce product costs. Inadequate understanding of the profitability of printed matter and integration costs, most domestic packaging and printing companies are still in the stage of extensive operation and management, and the profit assessment and cost integration of printed matter are not systematic and standardized.

2. Suitability of equipment and process

At present, the advantages of flexographic printing generally recognized in the field of packaging and printing are as follows:

1. Using non-toxic water-based ink and UV ink, safe and environmentally friendly, known as "green printing", widely used in packaging printing of medicine and food.

2. The ink layer is relatively thick and the color saturation is good. The ink color can be kept consistent between different batches of prints, which meets the characteristics of packaging printing.

3. The printing materials of the flexo printing machine are wide. In addition to various types of paper, it is also suitable for printing plastic films, corrugated paper, adhesive materials, aluminum foil, metal foil and other materials.

4. The comprehensive processing ability of the flexo printing machine is very strong. It can be combined with printing methods such as relief printing, offset printing, screen printing, etc., linked to glazing, laminating, die cutting, waste discharge, slitting, cutting, folding, and even printing. Holes, coding, hot stamping, gluing and various complex post-press processing techniques are commonly referred to as "printing processing lines".

5. The flexo printing production line has good linkage, fast printing speed, less production space, saving labor in the next process, avoiding the waste of turnover between processes, so the comprehensive production cost is low and the economic benefit is high.

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