Table of Content

15 September 2011, Volume 32 Issue 9

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Filtration properties of electrospun PAN nanofibrous porous membrane

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  1-4. 

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PAN nanofibrous porous membranes from different solution concentrations were prepared by electrospinning, and then the morphology, diameter of fiber, porosity and specific surface area, mechnical properties and filtration efficency of the fiber membranea were tested and analysised. The results show that the average diameters of nanofibers increase as the concentrations of spinning solutions rise, the as-spun nanofibrous porous membranes which exhibit good overall mechnical properties show lower filtration efficiency, the sample 2 presents the best filtration efficiency among them. When the filtration rate is 5.3 cm / s and experimental particle size is 0.06 ~ 0.43 μm, its filtration efficiency is between 99.9% and 99.993%, better than the commonly used high filter. Moreover, its most penetrating particulate size is about 0.10μm.

Fabrication of composite nanofibers membrane and photocatalytic degradation of dyes

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  5-8. 

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PMMA/TiO2 and PMMA/MMT/TiO2 composite nanofiber membranes were fabricated through electrospinning and sol-gel coating. Light-catalyzed properties of different samples were analyzed and compared through the degradation of methylene blue under UV-light. SEM and FT-IR were employed to investigate the difference between the samples before and after light-catalyzed reaction the morphology of the fibers, the structure of the molecular as well as the chemical contents of the nanofiber membranes. The study has revealed that PMMA/MMT/TiO2 composite nanofiber membranes performed best in methylene blue degradation. MMT not only improved the absorption property of the nanofiber membrane but also prevented the TiO2 membrane from cracking.

Study on the Compatibility of MCPET/PTT Blends

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  9-14. 

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In this paper, MCPET pellets made by ourselves were mixed with PTT pellets, then the MCPET/PTT blend fibers were obtained by melt spinning under 238℃. FTIR spectrum of the blends obtained show that there is no significant peakshift or the generation of new peaks, indicating that transesterification reaction and terminal group reaction didn’t exist in the blends .The compatibility of MCPET/ PTT blends was studied by DSC, DMA, WAXD and SEM. The results of DMA and DSC show that MCPET is well matched with PTT in the amorphous region; WAXD indicates that the crystalline region was partly compatible; Fracture morphologies explored by SEM indicate that the two materials have good compatibility.

Preparation and characterization of high molecular weight poly(L-lactic-glycolic) copolymer

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  15-19. 

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A high molecular weight poly (L-lactic-glycolic) (PLGA) was successfully synthesized by joining hydroxyl terminated prepolymer (OLGA-OH) together using 1,6-hexamethylene diisocyanate (HDI) as the chain extender. The polymer samples were characterized with FTIR, GPC, DSC, TGA and 1H-NMR. The results showed that the obtained polymer had a Mn of 5.6×104 and a Mw of 15.0×104 at -NCO/-OH=2 (molar ratio). The glass transition temperature (Tg) of the OLGA-OH was 36 ℃. After chain extension, Tg increased to 53 ℃.

The absorption properties of Seacell fibers for copper and zinc ions

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  20-23. 

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In order to study the absorption properties of Seacell fibers for copper and zinc ions, this paper used aqueous solutions of copper chloride and zinc sulphate to treat Seacell fibers under various treatment time and temperature. The absorption capacities for copper and zinc ions were determined after measuring the changes of the copper and zinc ion concentrations in the treatment solution. Results showed that because of the alginate rich seaweed particles dispersed in the fiber structure, Seacell fibers have good absorption properties for both copper and zinc ions, with the equilibrium absorption capacities for copper and zinc ions at about 7 mg/g and 2 mg/g respectively. The absorption of copper and zinc ions by Seacell fibers is a relatively fast process, with most of the absorption completed within 30 min. It is possible to prepare Seacell fibers containing different amounts of copper and zinc ions by controlling the copper and zinc ion concentrations in the treatment solution.

An Inverse Problem of Type Design for Textile Materials under Low Temperature

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  24-28. 

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Based on the model of steady-state heat and moisture transfer through textiles, we put forward an inverse problem of type design for textile materials under low temperature, that is to say, according to the environment’s temperature and humidity people live in and the comfort index of clothing, given the textile microcosmic structure and thickness of the material, we determine the type of the material. According to the idea of regularization method, the inverse problem of type design can be formulated into a function minimization problem. Combining the finite difference algorithm for nonlinear ordinary differential equation with direct search method of one-dimensional minimization problems, we construct an iterative algorithm for the regularized solution of the inverse problem. Numerical Simulation shows the effectiveness of the algorithm.

Fabric Defect Clustering Analysis based on Artificial Neural Network

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  29-33. 

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It proposes a method to classify fabric defects based on artificial neural network in this paper. Firstly, gray co-occurrence matrix is used to extract texture feature parameters from fabric defects image. Then, the topology structure of forward feedback BP neural network is narrated, and also indicated the training process in detail. Finally, the BP artificial neural network is applied to fabric defects classification, the five kinds of fabric sample is used in the experiment, and defects data for classification can be gotten through neural network training process, these data can be used to classify fabric defects, the accuracy of classification is up to 100 percent, which verify the feasibility of the method mentioned in the paper.

The Effect of the Structural Parameters of the Air Permeability of Weft Elastic Silk

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  34-37. 

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Weft elastic silk fabric is a kind of parachute fabric. Due to the diversification of air impact load, the size of the fabric changed. As a result, the volume of air permeability changed. In the parameters of the properties of the parachute silk, the air permeability is an important parameter. According to the requirements of the air permeability performance of the parachute fabric, 15 types of weft elastic parachute silk, different outsourcing twist and different pre drafting ratio, have been designed. The relationships between the structure parameters of the fabrics have been researched, and the major factors impacting the air permeability of weft elastic silk fabric was found. It was found that the great warp density favors the small air permeability of the fabric. In addition, the air permeability of the fabric increased and decreased with the increase of the outsourcing twist. The air permeability of weft elastic parachute silk is the biggest when the outsourcing twist is 1000T/10cm.

A Study on the Antibacterial Properties of Fabrics with Silver-plated Fibers

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  38-41. 

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To study the relationship between the content of silver-plated fibers in fabrics and the antibacterial performance of the fabrics, five sets of samples with common polyester yarns and silver-plated polyamide yarns were manufactured for the experiment, a qualitative antibacterial test with flask-shaking method was performed and compared for fabrics with different content of silver-plated fibers. The results show that fabrics with silver-plated fibers have good antibacterial effect, and the bacterial inhibition rate will be improved as the content of silver-plated fibers increasing. When the content of silver-plated fibers is 3.6%, the bacterial inhibition rate for coli form and golden staphylococcus will reach to 76.92% and 99.36%, the antibacterial effect of silver-plated fibers to golden staphylococcus is better than coli form; When the content of silver-plated fibers is higher than 11.99%, the fabrics have better antibacterial properties for the two bacteria and the bacterial inhibition rates are higher than 99%.

Study on Properties of PET Fabrics Prepared by Electroless Sliver Plating

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  42-46. 

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Electromagnetic shielding Poly(ethylene terephthalate) (PET) fabrics were prepared by electroless sliver plating. The surface morphology, chemical composition and crystal structure of sliver-coated fabric were characterized by means of FE-SEM, EDS and XRD. Systematic investigations, including thickness, weight gain, surface resistance, anti-static property, tensile strength, elongation, fabric stiffness, fabric draping and air permeability were conducted on PET fabrics before and after electroless sliver plating. The results reveal that the metal-layer was high purity sliver, and the crystal structure of sliver deposit was face cubic central structure. The fabric surface resistance decrease greatly when mass gain increase at the beginning. However, the surface resistance reduce slightly when mass gain heavier than 35%. The Ag-plated polyester fabric had higher anti-static property, tensile strength, elongation, stiffness, and draping, but lower air permeability.

Research on the Weft Knitted Fabric Defects Detection

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  47-52. 

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The real-time system including the image acquisition, signal processing and illumination device was developed to detect the weft knitted fabric defects in this paper. The cellular neural network was applied for detecting the defects with obvious gray level distribution and irregular shape. While the line detection based on Radon transform was first proposed to indentify the defects according to their linear shape, because the gray level distribution of the image and background of such defects are very similar. The experiments indicated that the algorithms could effectively detect defects like hole, dropped stitch, fly, float, course mark and miss tuck.

The Analysis of the Factors Affecting the Fuzzing and Pilling of Bamboo Fiber Knitted Fabrics

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  53-58. 

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Based on the results of the tests to the basic structure parameters and the fuzzing and pilling of seven kinds of bamboo fiber single jersey fabrics, the relationship among fabrics’ basic structure parameters and fuzzing and pilling was analyzed qualitatively and quantitatively by grey ralated analytical method. The results show that the sequentially-reducing inflence on fuzzing and pilling is as follow: mass, wale density, thickness, count, spendex precentage, course density and bamboo fiber percentage; 100% bamboo fiber single jersey fabric containing spandex in every course is worst and the fuzzing and pilling resistance of PCM viscose and bamboo fiber blended(80/20) single jersey fabric without spandex is best; and the fuzzing and pilling resistance of the single jersey fabrics containing spandex in every course knitted by the bamboo fiber and cotton blended yarns increases greatly.

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JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  59-63. 

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Study on Adsorption Kinetic of Octylphenol ethoxylates onto Silk fiber

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  64-68. 

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Octylphenol ethoxylates are one of important Alkylphenol ethoxylates, widely used in textile, leather and daily life. Recently, the fate and effects of OPEO in the environment have received considerable attention because their bio-degradation products have been proved to have estrogen-mimicking effects to nature receptor. In this paper, through the study OPEO on adsorption of silk fiber, in order to give a theoretical guidance mentioned for quarantine inspection. The results showed the adsorption isotherms fitted Langmuir model. The adsorption process could be well described using pseudo-second-order kinetics, and initial OPEO concentrations are larger, the adsorption rate constants are smaller and that reach to balance longer. The higher the temperature OPEO solution, the adsorption rate constants is larger. The pellet diffusion is a main factor in silk fiber adsorption of OPEO, but is not the only factor. The adsorption activation energy is 34.33kJ/mol in silk fiber of OPEO, which is far less than that of chemical adsorption required activation 83.72kJ/mol. It indicates that it belongs to physics adsorption.

The adsorption of copper ion by wool fiber

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  69-73. 

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This paper analyzed the adsorption of copper ion by wool fiber from five factors, such as the Cu (Ⅱ) initial molar concentration, pH value, time, temperature and pre-treatment for wool fiber. By comparing the differences between raw wool fiber and Cu(Ⅱ)- wool fiber in the mechanical properties, the damage after treatment was analyzed. Through the structural characterization of the Cu(Ⅱ)- wool fiber by Fourier Transform Infrared Spectroscopy, the paper discussed the binding site of wool fiber with Cu(Ⅱ).

Effects of enzymatic processing with protease of Savinase and papain on wool properties

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  74-78. 

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The enzymatic treatments based on the combined use of cutinase and protease (alkaline protease of Savinase or papain) treatments were contrastively studied. The effects the two-step combined treatments on wool anti-felting were investigated. The results indicated that Savinase treatment was more efficient than papain treatment during wool processing, it led to more weight loss after wool enzymatic incubating. For the wool fabric treated with papain, when the weight loss was similar to that of the sample treated with Savinase, the wettability of the former was more satisfactory, the alkaline solubility and shrinkage percentage were also appreciably lower, revealing that the extent of scale removal was more remarkable during cutinase-papain treatment. The data obtained by the XPS method further showed that papain seems to degrade the scales more efficiently in hydrolysis mode than the protease of Savinase during wool enzymatic processing.

Study of Dyeing Properties of Wool Yarns Treated by ILs

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  79-83. 

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Dyeing properties of wool yarns treated by ionic liquids prepared in our lab was studied. The results show that dyeing rates of wool treated by ILs are increased in some degree, and in the same treatment condition, equilibrium exhaustion of wool treated by [Emim]Ac at 60 ℃ for 10min reaches 93.95%, while equilibrium exhaustion of wool untreated reaches only 78.9%, that wool yarns treated by [Emim]Ac at 60 ℃ for 10min have good low temperature dyeing, and that wool yarns treated by ILs which have better dyeability have lower tensile strength. SEM shows treatments of various ILs have great effects on surface structure of wool fiber.

Study on the Technology of Cashmere Skein Dyeing with Reactive Dyes

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  84-88. 

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The research and application of modified silica hydrosol for superhydrophobic cotton fabrics

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  89-94. 

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Modified silica hydrosol was prepared by water-based sol-gel method using methyltrimethoxysilane (MTMOS) as the precursor and hexadecyltrimethoxysilane (HDTMS) as a hydrophobic additive, in the presence of ammonia and the anionic surfactant sodium dodecyl benzenesulfonate (SDBS). Superhydrophobic cotton fabrics were successfully obtained by dip-coating the modified silica hydrosol. By controlling ammonia amount and surfactant concentration, the modified silica hydrosols with different particle sizes and PDIs were prepared. The effect of the SiO2 nanoparticle size and distribution on the water-repellent property of the treated cotton fabrics was discussed. The treated cotton fabrics were characterized by scanning electron microscopy (SEM), atomic force microscope (AFM), X-ray photoelectron spectroscopy (XPS). The results showed that the modified silica nanoparticles had been coated onto the cotton fiber surface, resulting in the lowered surface free energy and the increased surface roughness. The water-repellent property of the treated cotton fabrics were evaluated, and it was demonstrated that the water contact angle and water sliding angle of the treated fabric were respectively 152.1° for a 5µL droplet and 8° for a 15µL droplet, and the spray rating was 100, thus realizing superhydrophobicity. The physical and mechanical properties measurement of fabrics showed that there was a slight change after finishing except the permeability.

Improvement of the construction of Donghua’s garment basic block based on different characteristics of female body for different ages

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  95-99. 

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As the basic pattern of female garment, Donghua’s basic block has been developed for ten years based on the body measurements from young women. In order to improve the construction of Donghua’s basic block to be applied in a large range of different ages, 23 body measurements of 182 subjects aged between 18 and 40 in East China were obtained from 3D body scanning. Subjects were classified into four age groups: 18-24, 25-30, 31-35, and 36-40. One-Way ANOVA was run to investigate the potential presence of significant differences on the means of measurements between characteristics of each age group. Then, the regression equations were revised by adjusting regression constants for different age groups. The evaluation results showed that the sample produced by revised basic block had a good fit.

The study on the central size and the grading in the major circumference and height of the young woman in Jiangsu and Zhejiang area

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  100-103. 

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The woman body is consituted by complex surface, it will have a significant difference in Three-dimensional cross section even if the same chest girth and waist girth. In order to express the woman,s surface exactly ,This article study the major circumference and height in Jiangsu and Zhejiang area based on 3-D body measurement. The data is analyzed by spss software, and get the main reference site of the body circumference, it is height, bust, waist circumference, maximum abdominal circumference and the hip circumference. The date is analysized in the infrequency and factor ,then, combining with the clothing number type standard of the GB／T1335。2—1997,get the central size and the grading in the major circumference and height of the young woman .

The Analysis of Somatotype of School Girl in Liaoning Province

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  104-108. 

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Aimed at girl’s growth of physical characteristics in advance and dislocation phenomenon between production and sales, selected Liaoning region as sample source, randomly sample 312 school age girls, perform manual measuring, then adopt SPSS statistical analysis software to analyze data, factor analysis, according to chest-body ratio and chest-waist ratio , execute rapid clustering analysis. the result divide liaoning school-age girl into BT slender standard body, BS standard body, and BF obesity standard bady. This thesis research results will provide valuable reference for making new standard size, and provide basis and data for realizing wear garment intelligent CAD system, and provides the making pattern experience and promote structural design of the individuation, diversity and fitness.

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JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  109-113. 

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Study on processing chemical fiber with new type gill pin taker-in

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  114-118. 

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Effect of carding machine using on card sliver and yarn of polyester was studied. The card sliver and yarn were processed by respectively using gill pin taker-in and saw-tooth take-in under different speeds, and the content of short fiber and nep of the card sliver, yarn evenness, and yarn strength were tested with conventional method. The test results show that, the content of nep and short fiebr was lower when gill pin take-in was used than those of saw-tooth take-in, the quality of yarn produced by using gill pin taker-in was better than that of saw-tooth take-in as a whole, especially the parameters of yarn strength and strength CV% value. It is concluded that, the gill pin with smooth surface without edge, and small tooth-top area resulting in less fiber damage and lower nep content.

Applied research of independent component analysis in the noise test of spinning spindle

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  119-124. 

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The performance of spinning spindles decisively influences the production efficiency and yarn quality. This article analyzes the noise during the running process of spinning spindles. Sound pressure signals which collected during the experiment is analyzed and separated by spectrum analysis method and FastICA algorithm. Thus the source of the noise component during the running process of spinning spindles is separated and contrast with the main frequency of the motor noise. 38.88% of the main frequency is identical, 44.44% of the main frequency is close with the minimum error 0.05%. Experimental and analytical results show the effectiveness and correctness of FastICA algorithm used in sound pressure signals separation.

Calculation and Analysis of Weft Insertion Force for Air-jet Loom’s Main Nozzle Based on Fluent

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  125-129. 

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The Fluent of CFD is used to simulate the interior flow field of main nozzle of the air-jet looms, and a comparison has been made between the numerical simulation and experimental values arising from other investigators. The compared results show that Fluent is feasible for simulating the flow field of air-jet main nozzle. According to the values of pressure、velocity and Mach number from simulation results, weft insertion force in main nozzle can be calculted. So an approach is supplied for calculating and analyzing the weft insertion force.

The upgrade path of Ningbo Apparel Industry cluster in the perspective of the spatial integration

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  130-135. 

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This article use a new perspective, study the upgrade of the cluster uniquely and innovative which based on localization, regionalization and globalization integration. This paper comprehensively uses economic geography, industrial economics, regional economics, makes Ningbo Apparel Industry as a Case ,Studies its cluster localization, regionalization and globalization, and the analysis of the order , extracts the industrial cluster model and path of the upgrade features, thinks of further upgrade of its basic ideas. The findings have important theoretical and practical significance, it expands the research area of the upgrade of the local industry cluster, provides for a new method for local governments to develop and implement policies related to upgrades.

Automatic Identification of Jacquard Warp knitted fabrics' multi-zones based on Wavelet Transformation

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  136-141. 

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In order to simplify the regional design process of Jacquard regions in warp knitted fabrics, the automatic regional identification method is proposed in connection with the texture characteristics of various regions, particularly the difficult situation in mesh region classification. First median filtering is used for noise elimination in the original image. Second wavelet transform method is adopted to extract different fabrics regional texture features. Then in the case of knowing the Category number, K means clustering method is used to segment these texture features. Experiments show that the method has a good effect, Jacquard warp knitted fabric which with two or more regions can be distinguished in supervised and automatic manner, and the method is adapted to the mesh regions with better regional consistency and edge accuracy.

Research on auto-generation system of pattern size based on upper clothing of lady’s suit

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  142-146. 

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The Questions of Basic Researches about Anti-bacterial and Odor-control Textiles

JOURNAL OF TEXTILE RESEARCH. 2011, 32(9):  147-152. 

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The preparation and testing technologies of the anti-bacterial and odor-control textiles have been reported in quantity. But consumers are worry about the safety and the effectiveness. The paper discusses the four basic questions including the human skin microecology environment, the formation and odor molecules of the human unpleasant odor, the relationship among skin bacterial and human odor and textiles, the effect of antibacterial textiles to normal skin flora. The human skin flora has good defense mechanism, it is not necessary to using antibacterial textiles to prevent bacterial infection. The antibacterial textiles can reduce a part of odor and odor have been caused by skin bacterial should be removed by odor removing finishing. The bacterial colonization on the textiles and the odor reserved on the textiles are closely related to the types of fibers. The antibacterial textiles used for interval and long time wont damage the balance of the skin flora. The relationship among skin bacterial and the human odor and textiles are complex and should be further studied