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What are Ecological requirements for pigment printing?

Views: 1000     Author: Site Editor     Publish Time: 2021-05-26      Origin: Site


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 The six factors that compare the environmental and ecological load of printed textiles and their production methods are raw material consumption, energy consumption, land use, emissions in air and water and soil, the use of hazardous substances, and possible hazards (such as transportation and use). Etc.), the environmental and ecological load analysis of textile printing methods; obviously, textile pigment printing has the following four outstanding characteristics:


       a. Lower production cost and simple production process;


       b. Strong applicability, not only can obtain the required printing effect, but also almost undoubtedly applicable to all fiber types;


       c. In a wide range, including color, feel and fastness, it is almost no longer different from the level of reactive dye printing;


       d. Low environmental and ecological load, energy saving, time saving and safer. Production practice has proved that the energy consumption, raw material consumption and land requirements of the pigment printing method are lower than that of the more used dye printing (such as reactive and disperse dye printing). This is because the steam curing is eliminated after the pigment printing. The color and post-washing process reduces the source of environmental and ecological load, and reduces the risk of waste water and pollution accidents.


       Therefore, the continuous expansion of the application of pigment printing, coupled with the continuous improvement of its ecological protection performance, has reached a very high technical level today, and has achieved a leading position in printed textiles. According to statistics, the number of pigment printing in printed fabrics in the world has exceeded 55% (reactive dye printing accounts for 24%, vat dye printing accounts for less than 5%, etc.); among them, the United States accounts for 80%, India accounts for 60%, and my country also Gradually rise to about 30%, with the mass production of synthetic fibers and blended fabrics, the superiority of pigment printing is particularly prominent.


       Although pigment printing has many advantages in ecological protection, there are also a series of important issues worth noting. This requires the textile printing industry to pay attention to the waste water and exhaust gas during production and processing, and the effects of processed printed textiles on the human body. Problems with toxicological behavior.

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