Corrugated board wax coating process

Abstract

The invention provides a corrugated board wax coating process. The corrugated board wax coating process includes: a first step, preparing a wax coating material, wherein the wax coating material uses paraffin and stearic acid as raw materials, the weight ratio of the paraffin and the stearic acid is 1:1, water is used as a medium, and the wax coating material is molten at the temperature of 60-80 DEG C; a second step, coating a corrugated board with the wax coating material, wherein an outer surface of the corrugated board is coated with the wax coating material at the temperature of 90 DEG C, the use amount of the wax coating material is 14 g / m2, and then a rolling wheel is used to press the wax coating material so as to allow the wax coating material to be pressed on the corrugated board; a third step, cooling the wax coating material, wherein the outer surface of the half-finished corrugated board is rapidly cooled by using cooling water at the temperature of less than or equal to 8 DEG C so as to separate water from wax; a forth step, polishing the wax coated surface, wherein the half-finished corrugated board is placed in a polishing machine, and a wax coating of the corrugated board is polished. The beneficial effects of the invention are that smell released by the wax coating material in air can be reduced, and the body health of workers can be effectively ensured.

Description

technical field [0001] The invention belongs to the field of cardboard processing, in particular to a wax coating process for corrugated cardboard. Background technique [0002] In modern society, the fast pace of life promotes the development of the transportation industry and the express delivery industry, and the cartons used to transport products sometimes come into contact with a lot of water, so both the inner and outer surfaces of the carton must have good waterproof performance. At present, the process of wax-coated cartons usually uses paraffin as the coating, and coats a layer of coating surface on the corrugated cardboard. This coating surface has poor bonding force with the base paper layer of the wax-coated cardboard. After the treatment, the wax is seriously lost at the position of the crimping line, and water is easy to infiltrate from the crease line, which affects the overall waterproof effect of the carton made of corrugated cardboard; while using paraffin ...

AI Technical Summary

Problems solved by technology

At present, the process of wax-coated cartons usually uses paraffin as the coating, and coats a layer of coating surface on the corrugated cardboard. This coating surface has poor bonding force with the base paper layer of the wax-coated cardboard. After the treatment, the wax is seriously lost at the position of the crimping line, and water is easy to infiltrate from the crease line, which affects the overall waterproof effect of the carton made of corrugated cardboard; while using paraffin as the raw material of the coating, after high-temperature hot-melt treatment, the paraffin is in contact with the air. Chemical reactions will produce odors, which will affect the health of the staff and pollute the environment. At the same time, if the wax is not cooled, there will be some residual air in the middle of the corrugated cardboard that will not be discharged in time, which will affect the cartons made after waxing. The quality of the product in the product greatly shortens its shelf life