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Nowadays, the development of commodity economy is becoming more and more mature. A high-quality commodity is not only the expression of the market value, but also the extension of the cultural connotation of the commodity. Therefore, the hand-carried paper bag is not only a single transportation tool to convey some simple information. Handbag printing reflects the importance of the enterprise business to the commodity, showing the culture of the enterprise. The paper bag is a practical product that reflects the trend of commodity development and has the effect of advertisement.

The classification of portable paper bags is very much, according to the classification of the different thickness, there may be hundreds of different types of handbag printing, various forms, multifarious, its function, appearance content also have their own. From the perspective of packaging and printing industry, this paper sorts out the types of handbag printing, which are classified according to different materials.

1. White paper bag

The portable paper bag made of white cardboard is one of the most high-grade portable paper bags. Its characteristics are as follows: the strength of the portable paper bag made of white cardboard is the highest among all the paper bags, which is determined by the physical properties of white cardboard. Designers generally use this kind of handbag to hold high-end clothes or goods. Compared with the white board paper carrier bag, the white card carrier bag feels obviously delicate. Therefore, the white card carrier bag is particularly elegant. White paper has good printing suitability, designers can boldly apply a variety of design techniques (including color conception). The white paper bag is the most expensive of all.

2. White board paper bag

White board is also a common material for making hand - held paper bags. The strength of the paper bag made of white board paper is larger, which can hold some goods with a certain weight. Designers often use white board paper for clothing paper bags, whose specifications are generally fold-off or fully open. Because the white board of printing suitability is general, therefore, more suitable for printing text, line or color block. Whiteboard paper strength is larger, can not cover film, therefore, the cost is lower, is a more affordable handbag.

3, coated paper bag

Choose coated paper to make a portable paper bag, which is characterized by moderate fastness. Because the coated paper has a higher whiteness and gloss, printing suitability is good, designers can boldly use a variety of pictures and color block, advertising effect is good. On the surface of coated paper coated with light film or matte film, not only moisture-proof, durable function, and appear more refined. Coated paper is one of the most popular materials for making paper bags.

Kraft paper bag

Hand-held paper bags made of kraft paper are characterized by high fastness and low cost. In addition to white kraft paper, kraft paper generally darker background color, therefore, more suitable for printing dark text and lines, but also design some strong contrast color block. Kraft paper bag is generally not covered with film, is a low-cost portable paper bag.

Processing technology of portable paper bag

1. The design

Design and manufacture is the key link of the whole paper bag production process. Most hand-carried paper bags are an extension of the corporate image and product advertising strategy. In most cases, the products need to be confirmed by proofing. The proofing in the design is not only the verification of the process, but also the basis of customer confirmation and the specimen produced.

2. Printing

Portable paper bag printing design is different from the general printing, spot color, full plate more, with large amount of ink, bright color. So its printing to pay special attention to the ink balance control, equipment adjustment is good, otherwise easy to occur ink bar, color difference problem.

3. The effect of

Mulching refers to the printing on the surface of a layer of 0.012 ~ 0.020mm thick transparent plastic film and the formation of a combination of paper and plastic finishing process, generally divided into precoating and coating two kinds of process. According to the use of thin film materials and there are different highlights and matte film. Especially use matte film can give a person with downy, high-grade, comfortable feeling.

4. Die-cutting processing

Die cutting technology is die cutting knife and indentation knife combination in the same template on the use of die cutting machine for printing die cutting and indentation processing technology, also known as "rolling mark". It is an important process in the production of portable paper bags. The quality of die-cutting directly affects the quality of paper bag and the efficiency of manual pasting.

5. Paste system

Pasting process is the most special process in the manufacture of portable paper bags. In addition to the auxiliary use of some semi-automatic equipment, mainly rely on manual completion, is the whole paper bag process in the least efficient part.

6. Punch and string

The final portable paper bag shape packaging.

In our daily life, we are not strangers to the portable paper bag, but also think that they look simple, little did they know that the birth of a portable paper bag also needs so many manufacturing technology. But also do not be frightened by it, after all, you do not know the industry some people know, in front of the professional paper bag manufacturers these are small meaning, so the bag bag or have to find a manufacturer, PAP packaging is the strength of the best packaging manufacturers, the products are exported to the international market, won foreign friends praise, the bag bag to find it is right!