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The design and production of paper bag is the key link of the whole paper bag production process. Most paper bags are an extension of corporate image and commodity advertising strategies, so the selection of materials, decorative processes and forms of performance are closely related to the use and efficacy of paper bags.

In order to enhance the beauty of the hand-held paper bag, the printing decoration process will use bronzing, UV, glazing, colorful, concave and convex, flocking processes to make the paper bag bright and three-dimensional. There is no doubt that no matter what finishing process is used, designers must consider the economic use of paper materials and the rationality of process design.

Kraft paper has good toughness, high strength and rough surface.

The rigidity of the paper is good but the toughness is poor, and the surface coating is generally required for paper bags.

Coated paper has a certain toughness, rich printing color, but the stiffness is worse than the cardboard.

Emphasize the durability of the choice of kraft paper, the color and stiffness have to pay attention to most of the use of cardboard, and the need for rich gorgeous pattern effect, people often prefer coated paper.

>>>> handbag printing

The general layout color of the bag is quite large, the selection of high-quality printing press for printing, a good printing press, the ink control is more symmetrical, the color brightness is also better.

>>>> tote bag covering
Laminating film, also known as post-printing plastic, post-printing laminating or post-printing film, refers to the surface of the printed product covered with a layer of 0.012~0.020mm transparent plastic film, formed a paper-plastic combination of post-printing finishing process, generally divided into pre-coating and namely coating two processes.

According to the different film materials used, there are high light film and matte film. With the use of environmentally friendly water-based solvents, the environmental protection of the film coating process has been further improved.

Non-kraft paper bags are more laminating process, mainly because it can increase the color concentration, the product waterproof and stain resistance is good, the physical properties of the paper aging resistance, tear resistance, and perforation resistance are generally improved, the fastness and strength of the paper bag are improved, and the light resistance of the paper bag is significantly improved. In particular, the use of matte film can give people a soft, high-grade, comfortable feeling.

Handbag surface finish

Gilding, UV, glazing and other printing surface finishing processes are widely used in the production of hand-held paper bags. It greatly meets people's beautiful and high-grade pursuit of paper bags. In the production process, the key points of these technical links must be controlled.

Compared with gold printing, hot stamping process has strong metallic feeling, good consistency, bright color and rich three-dimensional sense. The perfect bronzing effect depends on the organic coordination of temperature, pressure and speed of bronzing.

Hot stamping is a complex process technology, in the process of hot stamping fully consider the influence of the above factors, it is possible to achieve satisfactory hot stamping effect. The surface glazing process mainly refers to UV glazing and ordinary glazing. The glazing process can make the printed product maintain a good luster effect and improve the surface resistance to wear resistance of the printed product, especially the use of UV glazing and local UV glazing in the paper bag processing process, so that the printing layer of the paper bag is thick and dense, the luster is rich and moist, the printing theme is prominent, and the appearance is strong.

>>>> bag die cutting processing

Die cutting process is the combination of die cutting knife and indentation knife on the same template using die cutting machine to die cutting and indentation processing process, also known as "indentation". In the production of paper bags, it is an important process. The quality of the mold directly affects the molding quality of the paper bag and the efficiency of the manual paste.

>>>> bag paste box
Paste making process is one of the most special links in the production of hand-held paper bags. In addition to the use of some semi-automatic equipment, mainly rely on manual completion, is the least efficient part of the entire paper bag process. Due to the inability to achieve automated production lines, the demand for exquisite hand-held paper bags in developed countries is especially huge, so it also provides a market for the export of paper bag products of many printing and packaging enterprises in China.

The hand-made paper bag has been basically formed, and some paper bags have the last process - punching, threading and other operations, so as to complete the molding and packaging of the final paper bag.

We know that the exquisite and fashionable portable paper bag is formed by a complex process in series. Negligence in any process may lead to product quality accidents. To ensure product quality, strict process requirements.

From the perspective of the entire process flow, we must strengthen the evaluation and management of the process and the implementation of the first confirmation procedure before each process quantity, and at the same time, strictly track and control the production process. The perfect process must rely on strict process operation procedures to ensure that the manufacture of portable paper bags is no exception.