Do you want to publish a course? Click here

Study the impact of ultrasound technology on the quality of woolen fibers dyeing by acid dyes

دراسة تأثير تقنية الأمواج فوق الصوتية على جودة صباغة الألياف الصوفية بالأصبغة الحامضية

1118   0   13   0 ( 0 )
 Publication date 2015
and research's language is العربية
 Created by Shamra Editor




Ask ChatGPT about the research

In this research, we did the optical spectral study for using ultrasound energy in dyeing wool fibers using acid dyes. That we dyed wool fibers using both traditional dyeing and ultrasound techniques by using three acid dyes from different firms. The results of exhaustion percentage of the dye had been compared "the total moving dyes from a solution to fibers after dyeing". The exhaustion rate of some dyes increased by a large proportion but the effect on the fastness of the light, rubbing and washing was not great.

References used
AbduelmagedAbdualla," Investigating the Effect of Dyeing on the Surface of Wool Fibers with Atomic Force Microscopy (AFM)", Master Thesis, University of Stellenbosch, 2006
Berger, R. “Fiber Reactive Dyes with Improved Affinity and Fixation Efficiency.” Master Thesis, North Carolina State University, Textile Chemistry Program, 2005
Cegla, F. „Ultrasonic Waveguide Sensors For Fluid Characterisation And Remote Sensing‟, Mechanical Engineering Department, Imperial College London, 2006
rate research

Read More

In this study we used ultrasonic technology as a means of enhancing dyeing process efficiency of polyester fibers with disperse dyes, which had frequency 42kHz and, we studied the behavior of dye when the polyester dyed with (US) and with traditional dyeing methods (without US).
Bleaching process of cotton fabrics consider an important and sensitive operations in wet chemical treatments of cotton fabrics, mercerization is not less important than them and that in cases in which is made necessary, but from the problems of t hese processes are long time and consumption of energy, but the ultrasound energy contribute to reduce these problems.
The study aimed to know the effect of the governance of technological activities in the banks under study on the quality of loan portfolios provided to their clients and to achieve the purpose of this study, a questionnaire was designed and distribut ed to workers in the private Syrian banks from administrative levels (managers, internal auditor, head of department, head of department) . The study sample consisted of (180) valid observations for the analysis, and using the appropriate statistical methods to transmit the data, the study reached the following: The presence of an impact of information technology governance at the level applied in the Syrian banks under study in accordance with the COBIT framework in its four fields combined, and individually, on the quality of the loans portfolios of those banks.
This research is based on the use of different types of mineral mordants, mineral salts, in the dyeing process using the aqueous extract of eucalyptus leaves. The used mordants are aluminum potassium sulphate, copper sulphate, iron sulphate and mi xtures of these mordants. Study the effect of these mordants on the dyeing process.
This study was conducted at AL Assad University Hospital in Latakia in 2012. It was a prospective study of pregnant patients admitted Department of Obstetrics and Gynecology during the period between 1\9\2012 and 1\9\2013. These patients had regular menstrual information and were in 37th week or more of gestation and did not have any disease in the mother or fetus affecting the growth of the fetus. The study included 122 patients regardless of the mode of delivery. Each patient's information was documented: estimated gestational age by LMP (last menstrual period) and estimated gestational age by ECHO using (BPD : biparietal diameter, FL: femur length) during the 24-hour from delivery, presentation and amount of liquid by ECHO. Gestational age ranged between 37 and 41.5 weeks "with an average of 38.6 weeks" and a standard deviation of 1.1 weeks" by LMP. Results showed almost convergent values based on all BPD and FL. There was also a stronger correlation between the ages of pregnancy estimated FL, LMP than BPD, LMP. Moreover, there was presence of a strong correlation between the ages of pregnancy estimated using BPD, FL and LMP when the presentation was breech. It was also observed that the presence of a good amount of liquid is necessary to estimate the age pregnancy ultrasound.
comments
Fetching comments Fetching comments
Sign in to be able to follow your search criteria
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا