Food bag selection knowledge

Tote bags, as the name implies, are bags for holding items that are easy to carry. Its carrying capacity determines its material and form, and can be roughly divided into paper tote bags, plastic bags, cloth bags, small baskets and small baskets according to the materials used. The most common and frequently used ones are paper composite bags and plastic bags, followed by cloth bags, small baskets and small baskets are rare in metropolitan areas.
Most of the paper tote bags are printed, die-cut, glued and formed by offset printing machines using thick kraft paper, white cardboard, gray-white cardboard, white-white cardboard and copper cardboard. Due to the modernization of printing technology and equipment, the printed patterns are exquisite, delicate and rich in expression. All the processes in modern printing can be expressed on a small handbag, such as bronzing, bump, UV, die-cutting and so on.

 

Due to the difference in materials, kraft paper has good stiffness and toughness, rough surface, and background color. Generally, it is not suitable for 4-color printing. It only does some monochrome printing, and it is not used for surface coating. Pay attention to the use of good quality glue when bonding, otherwise there will be a phenomenon of bottoming and blasting. At the same time, the kraft paper tote bag will be degummed if it is left for too long. White cardboard, gray-white cardboard, white-white cardboard and copper cardboard have a common feature. The surface is delicate and white. It is suitable for 4-color printing and can print very beautiful patterns due to the paper itself. The characteristics of toughness and water-repellent are usually coated on the surface after printing to increase its toughness and water resistance. The handbag after the film treatment is generally not degummed.

Most of the textile bags are made of cotton cloth, canvas, polyester cotton cloth, oxford cloth, etc. These cloths have rough surface and cannot be directly printed finely, and most of them are screen printing or transfer printing. At the same time, due to the high price of raw materials, the production of handbags is also relatively expensive.

Small baskets and small baskets are mostly made of bamboo, wood and rattan. The carrying items are durable and durable. They are generally handicrafts, expensive, not portable, and the yield and usage are not large.

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