Paper bag manufacturer

22-07-2019

Paper bag manufacturer

Hand-held paper bags are mostly made of heavy kraft paper, white cardboard, white cardboard with grey background, white cardboard with white background and copper cardboard, which are printed, die-cut, bonded and formed by offset press. Due to the modernization of printing technology and equipment, printing patterns are very exquisite, delicate and rich in forms. All the processes in modern printing can be displayed on a small handbag, such as hot stamping, concave and convex, UV, die-cutting profiles, etc.

paper bag

Due to the difference of materials, kraft paper has better stiffness and toughness, rough surface, and with background color. It is not suitable for 4-color printing. It only does some monochrome printing, but also does not need to cover the surface. Its production cost is about 1.5 yuan (opposite). Careful attention should be paid to the use of good quality glue in the bonding process of kraft paper handbags. Otherwise, the phenomenon of bottom piercing and bursting will occur. At the same time, kraft paper handbags will degum if they are placed too long. White cardboard, gray-based white cardboard, white-based white cardboard and copper cardboard have a common feature. The surface is fine and white. They are suitable for four-color printing. They can print very beautiful patterns. 

Paper bag manufacturer


Owing to the toughness and water-repellency of the paper itself, they are usually coated on the surface after printing (BOPP film, also known as biaxial stretching). Polypropylene film, known as paper-plastic composite bag, increases its toughness and water resistance. The handbags treated with film coating generally do not degum. Its production cost is 1.3-2.0 yuan. Copper cardboard handbags have the highest cost, followed by white cardboard handbags, white cardboard handbags with grey bottom and white cardboard handbags with white bottom.

shopping bag

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