From：Honge Package Co.,Limited Release time：2019-06-18
Overview：cardboard box suppliers - Hongge (Guangzhou) Paper Packaging Co., Ltd. specializes in the production and export of various paper products, such as paper gift boxes, food boxes, round boxes, perfume boxes, perpetual calendar tubes, wine tubes, paper bags, cardboard tubes, facial tissues and so on. All our products are made of environmentally friendly materials and our boxes can be customized.
Cardboard box printing often has heavy shapes, illegible characters, font distortion and inaccurate printing. The following will study the causes and solutions of the above problems one by one:
Cardboard box If the adjustment is improper during the printing process, the printed font will often appear to have a heavy shape. This phenomenon is mainly caused by excessive vibration of the equipment or unstable speed. Another cause is also related to the pressure of the ink roller. To solve this phenomenon, our common method is to adjust the pressure of the ink roller to the best before production, and start the machine at a constant speed, and the equipment should be turned on without "sickness". The standard for the distortion of the font is completely dependent on the operator's equipment. Whether the adjustment is fully optimal and related to the proficiency of the operator;
Nowadays, due to the strict requirements of various manufacturers of product packaging, such as carton has high requirements for cardboard box pressure, which requires strict control of the gap pressure of the paper feed roller during the printing process, to avoid excessive pressure and cause the thickness of the cardboard. Damaged, corrugated will also be damaged by the deformation of the shape, which will directly lead to reduced pressure on the carton after molding;
Another reason that affects the thickness of the cardboard is also related to the material used in the layout. Originally, the corrugated thickness of the cardboard can reach 7.0mm~7.5mm, but after printing this process is only 7mm, sometimes even less than 7mm, because If the layout is made of rubber and the layout is too large, in order to ensure the printing layout effect in production, the thickness of the cardboard will not be considered, and even if the pressure is too large, the corrugated crush will be damaged. Accordingly, it is recommended to use flexographic printing as much as possible for products with high requirements on a large area to reduce the unqualified cardboard caused by the pressure of the layout;
In many cases, people encounter the phenomenon of blurred prints. People use the cleaning plate to solve the problem. In fact, this ignores the problem of pressure and the problem of repeatedly printing the layout and causing the area of the ink. It is recommended to clean the offset before the production. And according to the quality of the offset plate to adjust the pressure to the best state, like the imprint blur, the phenomenon of heavy shape can basically not appear, for the seepage phenomenon, this situation does not rule out the problem of cardboard material; on the other hand, the concentration of ink used and The pressure of the lower roller also has a great relationship. For example, the ink concentration should not be too thin, which will increase the coverage of the layout and reduce the occurrence of the bleed phenomenon;
There is a problem that can't be ignored in the printing of cardboard box, that is, the phenomenon that the slotted belt is hung, the chamfer angle is not clean, and the cracking of the handle is broken. Like our common slotting is not clean, there is a hanging edge. The phenomenon that often occurs in carton printing, which is related to the material of the cardboard; on the other hand, it is also related to the wear of the equipment. To solve this problem, the depth of the grooving can be improved, the gap between the upper and lower knives can be reduced, and it is impossible to blindly change the knives. Another one has a crack on the handle. Generally, the inner cut type will not crack the paper, but for the outer cut handle, because the paper is directly stressed, we must pre-press in the printing, buffer, face paper Direct force (without affecting quality and strength).
cardboard box suppliers - Hongge (Guangzhou) Paper Packaging Co., Ltd. specializes in the production and export of various paper products, such as paper gift boxes, food boxes, round boxes, perfume boxes, perpetual calendar tubes, wine tubes, paper bags, cardboard tubes, facial tissues and so on. All our products are made of environmentally friendly materials and our boxes can be customized.