Optimization And Model Research Of Carbon Emission In Garment Production Processes

In order to mitigate global warming, haze, dust storms and other inclement weather and air pollution, many countries and different organizations have issued a series of regulations and standards on carbon emissions. There are carbon emissions in every link of the textile and garment industry and because of the huge industrial chain,large amounts of carbon emissions have been produced. This paper mainly studies carbon emissions in garment production processes through the establishment of model, quantitative analysis and Optimization in order to provide the basis for carbon emission control of clothing production.This paper first summarizes the carbon emission status and background of textile and garment industry, a comparative analysis of the carbon emission accounting standards and the current international method has been carried on. At the same time, garment production process, production equipment and procedure were analyzed. The paper also analyzes the production equipment and process of three common style garments as examplesAccording to the related rules and definitions of carbon emissions, the paper establishes carbon emission calculation model corresponding to the various segments of the production equipment from transmission process, waste disposal, labor loss and carbon emission factors for cutting, sewing and finishing production processes. All energy are transferred into carbon dioxide equivalent for carbon emissions accounting and evaluation.According to the evaluation process of carbon emissions in PAS 2050, the paper analyzes the carbon emissions in male shirt production through process analysis, functional units, data collection and carbon emission calculation. The quantitative calculation results show that the carbon emissions in male shirts production are higher than carbon emissions the male shirts with fabric produced. Sewing processes produces the highest quantity of carbon emissions.On the basis of the above research, this paper discusses the approaches of reducing carbon emissions in clothing production process. Take male shirt production as an example,the paper arranges and optimizes the sewing process. A comparative analysis was made between the production process before and after the optimization of carbon emissions. The results showed, 7kg carbon emissions decreased in the sewing process. In addition, human transmission and conveyor belt transmission, these two kinds of transmission modes are compared. The results show that under the conveyor belt transmission, the carbon emissions are reduced a lot of compared to manpower transmission.The process and method of carbon emissions calculation model established in this paper are also applicable to other styles of the clothes, which can provide a basis and reference for supervision and evaluation of carbon emissions of the clothing production enterprises.