Anti-sticking coated paper, corrugated board and anti-sticking carton

Abstract

The invention discloses anti-sticking coated paper suitable for thermal-state asphalt filling. The anti-sticking coated paper comprises body paper, wherein the surface of the body paper is coated with an anti-sticking coating layer, anti-sticking coating of the anti-sticking coating layer is low-surface-energy water-based siloxane coating, the viscosity of the anti-sticking coating of the anti-sticking coating layer is 300-800 cps, and pH is 2.0-6.0. The invention further discloses a corrugated board. The corrugated board is suitable for thermal-state asphalt filling and comprises an outer layer, a middle layer and an inner layer arranged in a laminated mode from outside to inside in sequence, the outer layer and the middle layer adhere through an adhesive, the middle layer and the inner layer adhere through an adhesive, and the inner layer is the anti-sticking coated paper. The invention further discloses an anti-sticking carton. The anti-sticking carton is suitable for thermal-state asphalt filling and comprises a carton body, and the carton body is formed by folding of corrugated boards. The anti-sticking coated paper, the corrugated board and the anti-sticking carton are all used for containing thermal-state asphalt and not prone to adhesion, and peeling is easy.

Description

technical field [0001] The invention relates to the technical field of packaging for hot-state asphalt filling, in particular to an anti-adhesive coated paper, a corrugated cardboard and an anti-adhesive carton. Background technique [0002] Asphalt pavement accounts for more than 90% of paved roads in the United States, and almost all of the highways that have been built and are under construction in my country use asphalt concrete pavement. The "National Expressway Road Network Planning" approved by the State Council shows that the investment in the national expressway planning network in the next ten years will be 4.7 trillion yuan; in addition, the rapid development of my country's construction industry, municipal construction, airport construction and sports venues must It will drive the growth of high-grade asphalt consumption, so the packaging of industrial asphalt has become one of the factors affecting the distribution and use of asphalt. [0003] The development of...

AI Technical Summary

Problems solved by technology

However, so far, there has not been any plastic bag inside, which is directly used for packaging cartons such as hot asphalt and other substances with high viscosity and low surface tension.

This may be due to the fact that the kraft paper on the surface of the carton is mainly composed of fiber materials, and there are gaps between the fibers. Due to the action of capillary adsorption, high-temperature molten asphalt penetrates into the gaps and cracks of the base paper, solidifies after cooling down, and wedges into the base paper. It cannot be peeled off during use; on the other hand, due to the low surface tension of asphalt, generally 35 dyne / cm, while the surface tension of base paper is greater than 72 dyne / cm (surface tension of normal temperature water), molten asphalt will try its best Spread on the paper surface to reduce the surface energy of the system

Images