Effect of Supercritical Carbon Dioxide Dyeing Procedure on Mechanical Property of Wool Fiber

2014 ◽  
Vol 1048 ◽  
pp. 17-20 ◽  
Author(s):  
Peng Peng Yin ◽  
Lai Jiu Zheng ◽  
Yan Yun Wu ◽  
Zhong Tao Gao ◽  
Bing Du
Keyword(s):  
Carbon Dioxide ◽  
Mechanical Property ◽  
Supercritical Carbon Dioxide ◽  
Wool Fiber ◽  
Design Experiment ◽  
Optimal Conditions ◽  
Single Factor ◽  
Single Factor Experiment ◽  
Supercritical Carbon

In this paper, the effects of dyeing temperature, pressure, and time on mechanical property of wool fiber were investigated in supercritical carbon dioxide fluid. In addition, On the basis of single factor experiment, the optimal technological conditions for dyed wool fiber was optimized by employing Box-Benhnken Design experiment, and the optimal conditions were as following: dyeing temperature 110 °C, dyeing pressure 25 MPa and dyeing time 75 min.

Effect of treatment pressure on wool fiber in supercritical carbon dioxide fluid

2013 ◽  
Vol 43 ◽  
pp. 52-58 ◽  
Author(s):  
Jia-Jie Long ◽  
Chuang-Long Cui ◽  
Ling Wang ◽  
Hong-Mei Xu ◽  
Zhi-Jin Yu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Wool Fiber ◽  
Effect Of Treatment ◽  
Treatment Pressure ◽  
Supercritical Carbon

Waterless sterilization and cleaning of sheep wool fiber using supercritical carbon dioxide

2021 ◽  
pp. 004051752110428
Author(s):  
Faisal Aboelkasim Allafi ◽  
Md Sohrab Hossain ◽  
Marwan Shaah ◽  
Japarang Lalung ◽  
Mohd Omar Ab Kadir ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Textile Industry ◽  
Treatment Time ◽  
Wool Fiber ◽  
Morphological Properties ◽  
Whiteness Index ◽  
Wool Processing ◽  
Sheep Wool ◽  
Supercritical Carbon

There is increasing concern regarding the existing sheep wool processing technology in the textile industry owing to the enormous volume of toxic effluents generated. The application of supercritical carbon dioxide (scCO2) in sheep wool processing is cleaner and increases wool fiber production while avoiding toxic effluent generation. scCO2 is a novel clean technology that can be utilized in sheep processing for sterilization, cleaning, and drying sheep wool at the same time. In the present study, scCO2 was used to treat sheep wool with varying pressure, temperature, and treatment time. These parameters influence the scCO2 treatment of sheep wool fiber through the inactivation of microorganisms and improvement of the whiteness index. The identification of bacteria in sheep wool was carried out based on biochemical analysis by molecular means, using 16s rRNA sequencing. It was found that scCO2 completely inactivated the microorganisms present in sheep wool and potentially enhanced the percentage whiteness index at the highest pressure of 30 MPa, temperature of 80°C, and treatment time of 80 min. Several analytical methods were employed to assess the physicochemical, thermal, and morphological properties of untreated and scCO2 treated sheep wool fibers. The results show that scCO2 effectively removes the impurities and completely inactivates the microorganisms present in sheep wool. The findings of the present study reveal that scCO2 can be utilized as an alternative treatment technology for sheep wool processing in the textile industry.

scholarly journals Characteristics and Micromorphology of Designed Regenerative a Cellular Dermal Collagen Particles Derived from a Combined Procedure of Supercritical Carbon Dioxide Fluids and Protease Treatments at Low Temperatures

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Ching Cheng Huang
Keyword(s):  
Carbon Dioxide ◽  
Mechanical Property ◽  
Supercritical Carbon Dioxide ◽  
Medical Devices ◽  
Low Temperatures ◽  
Combined Procedure ◽  
Cutting Machine ◽  
Dermal Collagen ◽  
Specific Tissue ◽  
Supercritical Carbon

A new regenerative collagen particle with extra-cellular matrix (ECM) was designed and prepared from porcine dermal. A specific tissue-cutting machine was designed to prepare extra thin tissue membranes, which could be used for preparing the regenerative collagen particles with ECM. Furthermore, a novel procedure combining supercritical carbon dioxide fluids technology and protease treatments at low temperatures was employed. Characteristics of the resulting regenerative collagen particles with ECM were observed by determining morphology, thermal property and mechanical property for clinic application of medical devices

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