The Low Carbon Road In Textile Industry Is Imperative; &Nbsp; After 5 Years Wear Straw Clothes.

Among the 10 high energy consuming industries in the national "11th Five-Year" statistics, textile industry One of them. Italy Flalnox According to the company's investigation, to produce a 200 gram cotton T-shirt, 10 kilograms of carbon dioxide is needed, and carbon dioxide emissions are 50 times the weight of the T-shirt itself. Under the background of climate change, the "big household" textile industry is walking away. Low carbon road Be imperative. Many experts expressed this view at the high level Forum on climate change and low carbon textiles. Because of the development of new technology, perhaps 5 years later, we can wear low carbon clothing made from straw and other refines.

　　 The earth has been "feverish".

The fact that the earth is burning and has been in danger - - the temperature curve of the five continents - illustrates this point.

Scientists believe that the concentration of carbon dioxide in the atmosphere exceeds 350ppm (one millionth of a million) warning line, and the earth will be at risk. However, the atmospheric carbon dioxide concentration measured in July 2011 was 392.39ppm, far exceeding the warning line.

The future of the earth is not optimistic. A number of forecast models are expected to increase 4 degrees in the 21st century. If the prediction is true, 3 billion of the population will be in a state of water shortage and sea level will rise by 0.59 meters.

"Climate warming is a serious challenge facing mankind in the next few decades." Academician Zhou Xiang, Professor of Donghua University and director of engineering and Technology Committee of the national dyeing and finishing engineering technology research center, appealed, "as one of the largest greenhouse gas emissions industries on the planet, emission reduction in textile industry is imperative."

　　 Reduce laundry "carbon footprint"

It is estimated that the world produces about 60 billion kilograms of fabric every year, consuming 1 trillion kilowatt hours of electricity and 9 trillion liters of water. The amount of greenhouse gases emitted by the textile industry is obvious.

If we convert the huge figures into a 200 gram heavy cotton T-shirt, we need 50 liters of industrial water, 2000 liters of agricultural water, 4 square meters of land, 5 kilowatts of electricity, 4 kilograms of steam and 0.4 kilograms of chemicals.

It is worth mentioning that the carbon footprint of clothing will not be returned to zero due to the completion of production, and the use process will also cause carbon emissions. According to the Sustain consultation conference in Berlin, the carbon footprint of consumers accounted for 31% of the total life cycle of clothing and 3 percentage points of the manufacturing process. Wash The more times, the more carbon emissions.

When we know the emissions and their sources, we know where to reduce carbon emissions. Washing machines to wash a batch of clothes, 30 degrees of water than 40 degrees of water can be reduced by 100 grams of carbon dioxide. If we choose to dry rather than dry, we will reduce carbon emissions by 1.7 kilograms. See here, smart you should know how to do it.

　　 Biological waste extraction fiber

Now, wear a piece from Corn fiber The clothes made should be a piece of wind; in the future, the source of cloth will be extended to all kinds of crops. At present, the technology of Refining Lactic Acid from crops to produce fiber has matured. The polylactic acid filament made from corn starch as raw material in a chemical fiber factory in China has already woven clothes.

and Polyester fiber Unlike other materials made from oil, the biological fibers produced in the field can absorb carbon dioxide in the atmosphere through photosynthesis and store carbon in biomass and soil. Petrochemicals not only can not absorb carbon dioxide, but also cause a large amount of carbon emissions.

Jiang Shicheng, a member of the Chinese Academy of engineering, said that an ordinary large white T-shirt for men would produce 6.5 kilograms of carbon dioxide if produced by traditional methods. If biomass feedstock was used, carbon dioxide emissions would be only 1/10. Of course, if planting links are organic, then carbon emissions will be even less.

Jiang Shicheng's team is trying to extract fibers from agricultural wastes such as straws and water pollution of the duckweed. It is reported that straw pretreatment and refining technology is maturing, and foreign demonstration factories have been set up. China is expected to make breakthroughs in 5 years and become industrialized after 10 years.