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A Two-Bath Method for Digital Ink-jet Printing of Cotton Fabric with Chitosan
Yuen, C.W.M.,Ku, S.K.A.,Kan, C.W.,Choi, P.S.R. The Korean Fiber Society 2007 Fibers and polymers Vol.8 No.6
In our previous research, the possibility of using chitosan in preparing the pretreatment print paste for digital ink-jet printing for cotton fabric was investigated but the final color was not good as expected. In this paper, we modified our previous work by applying the chitosan separately on the cotton fabric for digital ink-jet printing. A two-bath method was thus proposed and it was confirmed that a better color yield was achieved with this method. However, the use of chitosan reduced the tensile strength of the digital ink-jet printed fabric slightly.
Influence of Low Temperature Plasma Treatment on the Properties of Ink-jet Printed Cotton Fabric
Yuen, C.W.M.,Kan, C.W. The Korean Fiber Society 2007 Fibers and polymers Vol.8 No.2
The aim of this paper is to study the possibility and effectiveness of applying LTP treatment to enhance the performance of pre-treatment paste containing sodium alginate so as to improve the properties of the ink-jet printed cotton fabric. Experimental results revealed that the LTP pre-treatment in couple with the ink-jet printing technique could improve the final printed properties of cotton fabric.
Improving Wrinkle Resistance of Cotton Fabric by Montmorillonite
Yuen C.W.M.,Kan C.W.,Lee H.L. The Korean Fiber Society 2006 Fibers and polymers Vol.7 No.2
Cotton fabric was treated with montmorillonite (MMT) so as to evaluate its effectiveness on improving its wrinkle resistance. The MMT in emulsion form was applied to cotton fabric by padding and finally the wrinkle resistance of the MMT-treated cotton fabric was improved. Furthermore, instrumental methods were used for studying the presence of MMT particles on the cotton fabric surface. It was noted that nano-scale MMT particles adhered on the fiber surface and the particle size played an important role in influencing the wrinkle resistance of the cotton fabric. The experimental results are discussed thoroughly in this paper.
Evaluation of Keratin Fibre Damages
Yuen, C.W.M.,Kan, C.W.,Cheng, S.Y. The Korean Fiber Society 2007 Fibers and polymers Vol.8 No.4
This paper investigated the effect of three different treatments, namely: (i) sunlight (simulated by Xenon light) exposures, (ii) bleaching and (iii) perming on the damage of keratin fibre (with the use human hair). Four different testing methods were applied to quantify the hair damages. On evaluating the test results, it was concluded that the bleaching process imparted the most severe damaging action for hair. The results of the different test methods were evaluated and discussed.
Yuen, C.W.M.,Ku, S.K.A.,Choi, P.S.,Kan, C.W. The Korean Fiber Society 2004 Fibers and polymers Vol.5 No.2
Optimum condition concerning the content of pretreatment print paste and steaming time for ink-jet printing was newly developed through the orthogonal analysis. The cotton fabric treated under the newly developed optimum condition could achieve a high level of colour yield similar to that of the commercially pretreated cotton fabric available in the market for ink-jet printing. The results were discussed thoroughly in this paper.
The Effect of Cellulase Treatment on Hydrolysis of Linen
Kan C.W.,Yuen C.W.M.,Jiang S.Q. The Korean Fiber Society 2006 Fibers and polymers Vol.7 No.3
In this paper, the effect of cellulase treatment was evaluated by means of phenol-sulphuric acid method. This method was performed by determining sugar liberation in the treatment bath with the amount expressed in glucose equivalent. As compared with conventional method, the measurement of amount of sugar liberated gave a more reliable and accurate result than the weight loss method. It was found that although the weight loss of cellulose became negligible when the treatment was done under agitation-free condition, the amount of sugar liberated was still readily measurable.
Effect of Low Temperature Plasma Treatment on Wool Fabric Properties
Kan C. W.,Yuen C. W. M. The Korean Fiber Society 2005 Fibers and polymers Vol.6 No.2
Low temperature plasma (LTP) treatment was applied to wool fabric with the use of a non-polymerizing gas, namely oxygen. After the LTP treatment, the fabric properties including low-stress mechanical properties, air permeability and thermal properties, were evaluated. The low-stress mechanical properties were evaluated by means of Kawabata Evaluation System Fabric (KES-F) revealing that the tensile, shearing, bending, compression and surface properties were altered after the LTP treatment. The changes in these properties are believed to be related closely to the inter-fiber and inter-yam frictional force induced by the LTP. The decrease in the air permeability of the LTP-treated wool fabric was found to be probably due to the plasma action effect on increasing in the fabric thickness and a change in fabric surface morphology. The change in the thermal properties of the LTP-treated wool fabric was in good agreement with the above findings and can be attributed to the amount of air trapped between the yams and fibers. This study suggested that the LTP treatment can influence the final properties of the wool fabric.
A Study of the Oxygen Plasma Treatment on the Serviceability of a Wool Fabric
Kan, C.W.,Chan, K.,Yuen, C.W.M. The Korean Fiber Society 2004 Fibers and polymers Vol.5 No.3
Low temperature plasma (LTP) treatment using oxygen gas was applied to a wool fabric. The LTP treated wool fabric was tested with several methods: ASTM D5035-1995, ASTM D1424-1996, AATCC Test Method 99-2000, AATCC Test Method 61-2001 lA, AATCC Test Method 15-2002 and AATCC Test Method 8-2001 and the results were compared with the industrial requirements (ASTM D3780-02 and ASTM D4155-0l). The results revealed that the LTP treated wool fabric could fulfil the industrial requirements. The results of the investigation were discussed thoroughly in this paper.
Kan, C.W.,Chan, K.,Yuen, C.W.M. The Korean Fiber Society 2004 Fibers and polymers Vol.5 No.1
Previous investigation results revealed that after the Low Temperature Plasma (LTP) treatment, the hydrophilicity of wool fiber was improved significantly. Such improvement enhances the wool dyeing and finishing processes which might be due to the changes of the wool surface to a more reactive one. In this paper, wool fibers were treated with LTP with different gases, namely, oxygen, nitrogen and gas mixture (25 % hydrogen/75 % nitrogen). Investigations showed that chemical composition of wool fiber surface varied differently with the different plasma gas used. The surface chemical composition of the different LTP-treated wool fibers was evaluated with different characterization methods, namely FTIR-ATR, XPS and saturated adsorption value. The experimental results were thoroughly discussed.