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The Study of Foam Finishing Liquid and Foam Performance and Application in Production

Author: LiYongGeng
Tutor: XuHaiYu
School: Donghua University
Course: Textile Chemistry and Dyeing and Finishing Engineering
Keywords: Foam finishing Foam dope Vesicant Foam height Foam half-life Foam than
CLC: TS195.5
Type: Master's thesis
Year: 2008
Downloads: 107
Quote: 0
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Foam finishing is influenced by the Middle East oil crisis in the 1970s in Europe and the United States quickly developed a low to medium, less pollution, high energy-efficient dyeing and finishing technology. It is the gas into the working liquid containing a surface active agent, mixing shear through the foam generator generating a plurality of uniform and microscopic bubbles of the bulky foam, then the form of foam is applied to the fabric, so that the fabric with liquid from the traditional 60% to 80% down to 15% to 30%, thereby saving drying energy consumption by more than 50%. In the 1980s, China has set off a wave of foam finishing research climax, its technological achievements have been many domestic printing and dyeing enterprise applications, processing hundred million meters of various fabrics to the domestic and foreign markets, the quality of its products by the quality and passed the test after launch . However, due to equipment condition and technical level restrictions, this technology could not be continued development and further promote the application. In recent years, with the energy crisis and environmental problems exacerbated greatly enhance people's awareness of environmental protection, printing and dyeing enterprises in the areas of production cost, energy consumption and wastewater discharge pressure doubled, in the \consumption, emission reduction policy driven, foam finishing renewed people's attention and favor. It is reported that some domestic and foreign research institutes and enterprises are actively studying the new foam finishing technology and equipment, and has made gratifying achievements. Foam dope composition and foam performance is an important part of the foam finishing technology. According to the new situation under the requirements of the eco-system of of foam finishing foam dope composition and foam properties. Roche - Myers (Ross-Miles) Act and stirring method foaming test, screened two ecological environmental protection and foam finishing production requirements foaming agent, sodium dodecyl sulfate (NaLS, anionic) Detergent JU (non-ionic), and a foaming agent molecular structure, the impact of the mass concentration and anionic / non-ionic foaming agent complex system of foam dope blistering performance and foam stability; choose tackifying The significant effect of hydroxyethyl cellulose (HEC) as a foam stabilizer, explore the HEC foam stabilization mechanism NaLS foaming liquid system; investigated the concentration of finishing agent, inorganic salts, environmental temperature, pH, and other factors on the foam finishing hair bubble the dope and foam stability. In addition, the article also explores the foam decay and stable mechanism, analysis of the bubble size distribution and camera through a microscope, uniformity of bubble size distribution of the foam stability. This paper also studied the foam soft foam resin, foam retardant, foam, anti-UV finishing and the foam stock solution of the the foam sizing whitening process, system compatibility and finishing liquid foam stability; applied manually by laboratory foam organize and deal with the comparison of conventional padding, to prove the above foam dope its foam properties to meet the processing requirements, provided the basis for the production of applications; This article by application to the production of a dyeing factory in Zhejiang test confirmed the foam finishing products with conventional finishing quality indicators of the processed products are the same, but with fluid is low due to the foam fabric finishing, significant savings in drying energy, improve labor productivity, reflecting the superiority of the foam finishing process.

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CLC: > Industrial Technology > Light industry,handicrafts > Textile industry,dyeing and finishing industry > Dyeing and finishing industry > Finishing > Chemical finishing
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