1. The classification is not the same: domestic cardboard paper is divided into three grades: high-quality, first-class, and qualified. Corrugated paper is generally divided into two types: single corrugated cardboard and double corrugated cardboard, which are divided into five types according to the corrugated size: A, B, C, E, and F.
2. The purpose is different: the purpose of boxboard paper is mainly to make a corrugated box after bonding with a corrugated paper core, which is used to package household appliances, daily necessities, knitted cotton fabrics, stationery, Chinese and Western medicines, etc. A type corrugated and B type corrugated are generally used as outer packaging boxes for transportation, and beer crates are generally made of B corrugated.
E flutes are mostly used as single-piece packaging boxes with certain aesthetic requirements and appropriate weight content. F flutes and G flutes are collectively called micro flutes, which are extremely thin flutes, used for hamburgers, cream pastries and other foods Disposable packaging container, or used as the packaging of digital cameras, portable audio systems and other micro-electric products and refrigerated products.
3. The requirements are different: the requirements of the box board to the box board are that it should have a certain degree of compressive strength, toughness, tear resistance, smooth paper surface, and no lumps, knots and uneven appearance paper defects. The requirement of corrugated paper is to be pressed into a corrugated shape during the production process. After being made into corrugated paperboard, it will provide the paperboard elasticity, flat compressive strength, and affect the vertical compressive strength and other properties.
For corrugated paper, the paper surface should be flat, the thickness should be consistent, and there should be no paper defects such as wrinkles, cracks and holes, otherwise it will increase the breakage of the production process and affect the quality of the product.