Comprehensive Evaluation Method of Packaging Products (I)

[Abstract] According to the theory of life cycle assessment, comprehensive evaluation of packaging products is conducted to explore the effective mode of ecological packaging manufacturing.
Key words: life cycle assessment; paper mold; AHP Based on LCA theory, a comprehensive analysis of the production process of packaging products is conducted to determine the production system that is more in line with the green packaging engineering requirements. According to the definition of objectives, the research focused on the production of 25-inch color television paper mold packaging as a functional unit, focusing on the differences in the environmental impact, economic benefits, and technical performance of two different paper mold packaging product manufacturing systems. Therefore, when the scope is defined, the acquisition of raw materials is used as the beginning of this life cycle evaluation study to obtain the finished product of paper mold packaging products as the end of this life cycle evaluation study.
1 Inventory analysis The survey production statistics, material balance, and key workshop water, electricity, and oil consumption were calculated. The factors such as personnel salaries, depreciation of fixed assets, and period expenses were taken into consideration. The data list is shown in Table 1. Its product pass rate is 98%.
Table 1 List of Slurry Configuration and Forming and Drying Stages

Project No.1 Paper Mould Factory No.2 Paper Mould Factory Slurry Disposal (kg/d) Drain Waste 30.0583.639 Drain Wastewater 7.97.9 Mold Drying (t/d) CO24.1864.582SO20.0050.068CO0.000040.00159NO20.000350.00166NOx0. 003140.01493 Operating cost (yuan/set) Energy consumption fee 2.8963.083 Water consumption 0.0060.007 Fuel consumption 1.6630.469 Additive cost 0.1000 Equipment depreciation fee 1.6102.300 Labor expense 1.4400.600 Overhaul fund 0.1500.188 Management fee 0.3750.375

2 Comprehensive Evaluation of Production Process 2.1 The quantification of environmental load is based on the paper mold production process. It can be determined that there are two main types of environmental shadow load types for the paper mold production system, namely global warming and atmospheric acidification. According to the data list and potential factors of different environmental impact categories, the main environmental impact types are quantified. The specific results are shown in Table 2.
2.2 The model construction Considering the characteristics of the production process, it is proposed to use AHP to conduct multi-objective regulation. The data and people's assessment basis for the problem itself is the information foundation of the AHP. Through these information foundations, the objects to be analyzed are transformed into hierarchical hierarchies. At each level, according to the corresponding requirements of the previous level, team-by-team comparisons are performed on the level elements and quantified according to the stipulated scale to form a judgment matrix. On the basis of the judgment matrix, the calculation is the weight of the order of importance of the elements associated with this level matrix for its previous level. When constructing a judgment matrix, inconsistencies in understanding are inevitable. In order to consider whether the results obtained by the analytic hierarchy process are basically reasonable, it is necessary to check the consistency of the judgment matrix. The results obtained after inspection can be considered as feasible.
Table 2 Environmental Impact Load Statistics for Paper Mold Production System

Project No.1 Paper Mould Factory Second Paper Mould Factory Weight (t/a) EB Weight (t/a) EB Global Warming NOx 1.03741.4834.928197.12CO0.1330.3990.5251.575CO21381.4231381.4231512.1811512.181 Atmospheric Acidification SO21.7731.77322.50322.503 NO20.1150.0810.5480.384

(To be continued)

Logger Boots

Safety Shoes,Logger Boots,Safety Boots

Cementing Safety Shoes Co., Ltd. , http://www.nsshoessafety.com