Packaging and printing is an important way to improve the added value of goods, enhance the competitiveness of goods and explore the market. Designers should know the necessary knowledge of packaging and printing technology to make the designed packaging works more functional and beautiful. Different packaging materials will have different printing processes. This issue will introduce the common printing process of paper gift bags.
The basic printing process of portable paper bag is divided into silk screen printing, flexo-graphic printing, offset printing.
① Silk Screen Printing / Screen Printing
Screen printing refers to the method of scraping and printing to obtain graphics by using screen engraving plate and printing material. The graphic accuracy obtained by silk screen printing method is low, but the process is simple. As for small quantity demand, like 100~300 pcs, the production efficiency is high and the cost is low.
② Flexo Printing
Flexo-graphic printing is a direct printing method of outer packaging paper bag. It uses an image printing plate with elasticity and convex surface, which is called flexo-graphic printing. Flexo-graphic printing has unique flexibility and economy, and is beneficial to the protection of the environment. It meets the hygienic standard of food packaging printing, which is also one of the reasons for the rapid development of flexo-graphic printing technology abroad.
③ Offset Printing
Offset printing is now the most important printing method in the printing industry. It is a printing method that transfers the design on the printing plate to the surface of the portable paper bag through rubber (blanket). It has the characteristics of rich level display and delicate performance in details.
For different types of products, different printing processes and production processes need to be matched. LangHai has more than 20 years of production and service experience in packaging and printing. The production process of Kraft paper bags will be introduced later.
Post time: Mar-08-2022