The difference between preprinting and traditional production of color carton

The traditional method for producing color corrugated cartons is to use a method of offset printing on a single sheet of carton paper first, and then use a veneer machine to bond the printed noodle sheet with a corrugated cardboard and die-cut into various box shapes.

The method for producing pre-printed color corrugated cartons is to use a large gravure printing machine to print on the web, and after printing, the web is still received into a web, and then the printed web is used as a corrugated paper production line Made of corrugated cardboard boxes, and then cut into boxes with a die cutter.

Gravure Printing Face Paper (web) - Production of Corrugated Cardboard - Computer Slitting - Computer Cross Cutting - Die Cutting

1, the preprint production of high efficiency

Because the preprinted printing method uses a web gravure printing machine, the printing speed can reach 150 meters per minute, and the imported printing machine can reach 300 meters per minute. After printing, the upper corrugated paper production line is made of corrugated cardboard, which is much faster than the traditional veneer machine.

2. Pre-printed color carton can get high-quality ink print

Gravure printing overprint accuracy of up to 0.2 mm, gravure printing can also be printed and painted varnish once completed; ordinary gravure printing after the print cable can reach 200 lines; gravure printing ink than other printing methods, the highest Up to 4.5g/m2, the printing ink is more saturated; the gravure printing is fully dried after each color printing, and the color of the printing product is more vivid and firm; therefore, under the premise of using a paper with a higher surface smoothness, the gravure printing can Get high quality ink printing. Most cigarette packages are gravure products. At present, domestically produced water-based gravure paper inks are relatively mature and can withstand the requirements of 180-degree high temperature and hot plate friction on the corrugated paper production line.

3, pre-print production can get large-format multi-color printing

The traditional maximum color offset printing format is generally 1.2×O.9 meters, and usually at most only four colors. The domestic gravure printing machine can reach 1.7x1.7 meters of printing format at present, can make the printing machine of 5- 12 colors very conveniently. Abroad gravure printing machine width up to 3.4 meters. The gravure printing machine can also print special inks such as gold ink and silver ink.

4, pre-printed production is more suitable for large-scale long-lived

Due to the high plate-making fee for gravure printing, the general high-level version fee is 0.7 yuan/cm2, and the ordinary level and line version fee is 0.35 yuan/cm2. Gravure printing plate printing capacity of 300 - 4 million printing, high-grade gravure printing machine only in the first color when the waste generated. Therefore, the greater the print volume, the lower the preprinting production cost.

5, preprinted corrugated boxes have higher strength

Because preprinted corrugated cartons are produced on the production line, there is a certain amount of heat-forming time when making corrugated paperboards, so the corrugated cartons have higher strength than traditional methods using a veneer machine and can avoid the production of veneer machines. The glue applied to the carton is not uniform, the carton is "struck", and the box is warped.