S. Q. Jiang

The effect of cellulase treatment on hydrolysis of linen

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.

Enzymatic treatment of linen

Abstract In this work, 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 equivalence. As compared with the 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 weight loss of cellulose became negligible when the treatment was done under agitation-free condition, the amount of sugar liberated was still readily measurable.

TEMPERATURE DEPENDENCE OF ELECTROLESS Ni–P DEPOSITION ON POLYESTER FABRIC

The effects of plating temperature on the plating rate, P content, surface morphology, and electrical resistance of the electroless Ni–P deposits were studied. The results showed that the deposition rate of the Ni–P deposit and P content of the Ni–P layer increased with the rise of temperature of the plating bath. Scanning electron microscopy of the Ni–P deposits showed a nodule structure. The Ni–P plating layers had an amorphous structure and surface resistance of the layer decreased with the rise of temperature. In addition, the electromagnetic interference shielding effectiveness (EMI SE) of electroless Ni–P plated polyester fabric was also investigated. The result indicated that EMI SE of Ni–P plated polyester fabric was close to 45–50 dB when the surface resistance was 0.63 Ω/□.

Textile Design with Electroless Nickel Plating

Trials have been performed to assess the practicability of the electroless nickel plating method applied to textile fabrics with various fabric constructions including polyester woven fabrics and polyester meshes. The effect of electroless nickel plating on different polyester fabric constructions had been studied. The results displayed that the nickel could be successfully plated on various fabric structures. In this study, it was found that fabric constructions can influence the appearance of electroless nickel-plated fabrics and generate different metallic effects. Fabric structure is considered to be a very important factor for determining the desired appearances of electroless nickel-plated fabrics. Moreover, electroless nickel plating is able to simulate the metallic effects of hard metal products on non-conductive fabrics with soft handle. Such findings could give inspiration to designers to design fabrics with different brilliant textures.

Optimising the Electroless Nickel Plating Process for Textile Application

In this paper, the optimisation of electroless nickel plating is investigated through the Orthogonal Array Testing Strategy. It was found that the electroless nickel plating process at the deposition stage with various parameters, i.e. temperature = 40°C, time = 20 minutes and pH = 10, is the most effective method in improving the metal adhesion performance. The performance of nickel-plated polyester fabrics was found to be dependent on the amount of nickel particles adhered on the fabric surface. The properties of optimised nickel-plated polyester were enhanced in term of fabric weight, fabric thickness and tensile strength. However, there was a moderate decrease in tearing strength and crocking fastness.

Effect of low-temperature plasma pre-treatment on the chemical silver-plated polyester fabrics

Low-temperature plasma (LTP) has been increasingly employed for polymer surface modifications. In this paper, plasma gases of oxygen and argon were used for pre-treating polyester fabrics before conducting chemical silver plating, aiming to increase the amount of metal content and improve the performance of the polyester fabrics. After LTP pre-treatment, there was a thin plasma layer generation on the fabric surface which was in good contact with the fibre. Based on the observation of micro-structure using scanning electron microscopy (SEM), it was found that there was an increase in the amount of silver particles deposited on the fibre surface after the LTP pre-treatment. The surface observation implies that the LTP pre-treatment could enhance the hydrophilicity of fibre surface and help facilitate the absorption of silver particle layer to reach the necessary level of uniformity and adhesive strength.

Surface Characterisation of Electroless Silver-plated Polyester Fibres

Electroless silver-plated polyester fibres are investigated in this work in order to develop functional textiles. The surface modification of silver-plated polyester fibres was characterized by the scanning electron microscope (SEM), X-ray diffraction (XRD) and Xray photoelectron spectroscope (XPS). The results showed that silver particles with high purity were deposited uniformly on polyester and the silver film had a rather perfect crystal structure, demonstrating that electroless deposition is a suitable technique for the uniform deposition of silver.

Creation of design on nylon metallic fabric

Abstract A design method for nylon metallic fabric design was studied by applying the chemical etching treatments and dyeing techniques. The present study was aimed to evaluate the influence of chemical treatments on the nylon metallic fabric for the development of decorative textiles. A series of experiments were conducted using acid and alkali solutions followed by dyeing process. The investigation explored the effect of various parameters including chemical concentration, temperature, and time scale on nylon metallic fabric. The appearance of the chemical-treated nylon metallic fabric was thoroughly discussed in this paper.

EFFECT OF SURFACE TREATMENT ON THE ENZYMATIC TREATMENT OF CELLULOSIC FIBER

Fiber modifications by environmentally friendly processing are essential in order to simplify the preparation and finishing processes, in addition to minimizing the chemical waste and associated disposal problem. In this regard, enzymes have been used extensively because it can remove the small fiber ends from yarn surface to create a smooth fabric surface appearance and introduce a degree of softness without using traditional chemical treatment. However, a significant strength reduction and slow reaction rate of the enzymatic reaction limit its industrial application. In this paper, the potential of using low-temperature plasma (LTP) as a surface pre-treatment prior to enzyme treatment on flax fiber has been studied. By means of the LTP pre-treatment, the effectiveness of enzyme treatment can be enhanced.

Design application of polyester with chemical silver plating

Chemical plating is one of the metallising treatment processes for fibrous materials that can produce unique textile properties. It poses a great potential for textile products in application aspects including functional and decorative effects. This study has investigated the operation condition and resultant performance of using chemical silver plating on polyester fabric. The silver-plated polyester fabric exhibited a specific protective function and novel appearance if optimum chemical plating condition was chosen. Furthermore, the fabric design practice employed by this chemical technique with design approach had achieved the diverse effects.