As a part of modern logistics, carton bears the important responsibility of loading, maintaining goods and beautiful, and the physical performance index of packaging carton becomes the basis of its quality evaluation. Stable working environment conditions ensure the accuracy and reliability of test data.
Cartons can be recycled to save costs. Cartons can be made into various styles that need to be made. No matter they are large, large fruit boxes, or petite small jewelry boxes, you can see the shadow of cartons. Many shopping malls now include clothing stores, they are also packaged in paper, which is beneficial to environmental protection.
The compressive strength of the carton is divided into effective value and final value. When the force value and deformation amount are added to a certain degree, the force value stops and the deformation amount continues to be added. After a period of time, the force value will continue to be added, until the collapse point of the carton, the appropriate quality should be selected when using the carton.
Several ways of printing:
1. Letterpress printing
Any part of the printed picture and text that is higher than the blank should be coated with ink around the picture and text. Through the effect of pressure, the picture and text should be imprinted on the surface of the printed object.
2. Lithographic printing (offset printing)
Now it is customary to call offset printing lithographic printing. The graphic and blank parts of the printing plate are on the same plane. Through the principle of oil-water separation, the graphic and text are transferred to the surface of the printed matter.
3. Gravure printing
Gravure printing and letterpress printing are just the opposite. The graphic part is concave while the blank part remains the original plane. The graphic part bears the ink layer and moves the ink layer to the surface of the printed matter through the pressure of the printing cylinder.