1. 瓦楞纸箱的材质：瓦楞纸箱是由面纸，芯纸，里纸构成的，材质的优劣对瓦楞纸箱质量好坏影响较大，市面上各厂家材质代码略有不同,原纸的等级划分有A纸，B纸，C纸，K纸，一般K纸为200g左右,A约为160g左右,B为120g左右。在相同楞别的条件下，K级纸优于A级纸,A级纸优于B级纸,B级优于C级纸,材质的好坏手感能感觉出来，优材质重量足，手感厚重，坚挺，外观颜色均匀，有光泽，杂质少。
材质对比
C一般为再生纸,吸水性快易烂，性能不如B级纸。吸水性对比
2.瓦楞纸箱的工艺，包括纸板印刷，开槽，钉合等工艺，在印刷开槽机组中，该部分主要由上、下压线轮，上、下辊筒，上、下开槽刀。纸板经过上、下压线轮完成瓦楞纸板的纵压线及送纸功能，随着科技的发展，印刷开槽设备实现了自动化，采用吸风式进纸，这种送纸方式直接关乎纸板加工过程中纸箱的挺度与印刷位置。压力过大会导致纸板变软，挺度降低，都会影响瓦楞纸箱诸如箱压，承重等性能，压力过小，印刷会跑位。
瓦楞纸箱质量好坏，成型后合箱目视能初步做出判断，箱体是否周正，手感是否坚挺，印刷是否清晰，合盖是否密封等，这些纸箱质量指标都与工艺有着密切的关系，所以工艺水平考验着印刷师傅的水平，决定着公司技术实力的高低。
1. material of corrugated box: corrugated box is composed of face paper, core paper and lining paper. The quality of the material has a great impact on the quality of corrugated box. The material codes of various manufacturers in the market are slightly different. The grade of base paper includes a paper, B paper, C paper and K paper. Generally, K paper is 200g left and right, a is about 160g and B is about 120g. Under the same conditions, k-grade paper is better than A-grade paper, A-grade paper is better than B-grade paper, and B-grade paper is better than C-grade paper. The quality of the material can be felt. The quality material has sufficient weight, thick and firm feel, uniform appearance color, luster and less impurities.
Material comparison
C is generally recycled paper, with fast water absorption and easy deterioration, and its performance is not as good as grade B paper. Water absorption comparison
2. the corrugated box process includes paperboard printing, slotting, stapling and other processes. In the printing slotting unit, this part mainly consists of upper and lower line pressing wheels, upper and lower rollers, and upper and lower slotting knives. The paperboard passes through the upper and lower pressing wheels to complete the longitudinal pressing line and paper feeding functions of corrugated paperboard. With the development of science and technology, the printing slotting equipment has realized automation, and the air suction paper feeding is adopted. This paper feeding method is directly related to the stiffness and printing position of the carton in the paperboard processing process. If the pressure is too high, the paperboard will become soft and the stiffness will be reduced, which will affect the performance of corrugated boxes, such as box pressure and load-bearing. If the pressure is too low, the printing will move.
The quality of corrugated boxes can be preliminarily judged by visual inspection after forming. Whether the boxes are upright, whether the feel is firm, whether the printing is clear, whether the covers are sealed, etc. These carton quality indicators are closely related to the process. Therefore, the process level tests the level of printers and determines the level of the company's technical strength.
