Table of Content

15 March 2010, Volume 31 Issue 3

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纤维材料

Effect of electrospinning process on structure and property of electrospun PA6/MWNTs yarn

Liu Yang;xu anchang;CHENG Qian;PAN Zhijuan

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  1-6. 

Abstract ( 1022 )   PDF (1358KB) ( 406 )   Save

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In this paper multiwalled carbon nanotubes (MWNTs) were used to reinforce electrospun PA6 yarn. The effects of spinning voltage, vertical distance, electric field intensity and other electrospinning parameters were investigated. The results indicated that the increase of spinning voltage not only increased the diameters of yarns and fibers, crystal linity degree, and fracture strength but also decreased the adherence between fibers. As the vertical distance was enlarged, the fiber orientation in yarn, crystal linity degree, fracture strength and initial modulus of yarns were improved. Under a certain fixed electric field intensity, the fiber orientation in yarn, fracture strength, elongation at break, initial modulus are improved by enlarging voltage and vertical distance.

Study on Non-isothermal Crystallization Kinetics of TLCP/PPS

LIAO Qian;WANG Yimin;SHI Shenghua;ZHU Weibiao

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  7-10. 

Abstract ( 1097 )   PDF (855KB) ( 444 )   Save

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The thermal liquid crystal polymer (TLCP) / Polyphenylene sulphide (PPS) in-situ microfibril forming hybrid fiber was prepared by melt spinning method. The formation of TLCP microfibrils enhance the mechanical properties of PPS matrix and optimize the spinning process. Considering that the actual spinning process is a non-isothermal crystallizing course, the non-isothermal crystallization kinetics of PPS/TLCP hybrid fibre was studied first. Differential scanning calorimetry (DSC) was used to investigate the influence of TLCP microfibrils on the crystallization of PPS matrix in accordance with non-isothermal crystallization and Jeziorny model was utilized to analyze the parameters. The results showed that the microfibrils of TLCP, which acted as a heterogeneous nucleation agent in the course of blending with linear PPS matrix, increased the onset crystallization temperature and lowered the half time， thus accelerated the crystallization process. Besides, the morphology of blend and the microfibrils of TLCP of hybrid fiber were observed through scanning electron microscope (SEM).

Preparation of electrospun high molecular weight chitosan/ Poly(ethylene oxide) composite nanofibers

XIA Xin;WEI Qufu;LI Jing

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  11-14. 

Abstract ( 1056 )   PDF (701KB) ( 402 )   Save

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Nanofibers were prepared by electrospinning a mixture of high molecular weight chitosan(concentration of 3%) and poly(ethylene oxide)(PEO) at a ratio of 3:1 in 50% aqueous acetic acid. To further improve the spinnable properties, surfactants of different charge were added at concentrations well above their critical micellar concentrations. The morphology and interaction of the composite nanofibers were characterized by Scanning Electronic Microscope (SEM) and Fourier Transform Infrared spectrum (FTIR) images, respectively. Tensile test were measured to assess the mechanical properties of the composite nanofibrous membrane in glutaraldehyde treatments. The study revealed that PEO is beneficial to the spinning properties. The composite solutions containing micellar solutions of surfactants enhanced the spinnability through modifying the molecular bond of the mixed solution and lowering its viscosity. Glutaraldehyde treatments improved the mechanical properties of the composite nanofibrous membrane. The presence of anionic-cationic surfactant resulted in the formation of smoother and high strength nanofibers.

Electrical resistance properties of Ni-Ti shape memory alloy fiber in phase transformation

XU Lei;WANG Rui;ZHANG Shujie

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  15-19. 

Abstract ( 1072 )   PDF (532KB) ( 359 )   Save

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Phase transition temperatures are the key parameters that decide the processing and operating temperatures. In this paper, Transformation of Ni-Ti shape memory alloy fiber was investigated by electrical resistance method. The relationship between the resistivity and temperature was derived by logistic’s martensite volume growth model and mixing rule. A signal acquisition system is established to measure the resistance and temperature of the Ni-Ti fiber. By the derivation of resistance-temperature curves, the measured phase transition temperatures of the Ni% 55.5a.t.% fiber sample are Ms = 34.4 ℃, Mf = 25.6 ℃, As = 39.4 ℃and Af = 51.1℃, respectively. Compare with the DSC testing method, the electrical resistance method is more accurate, thus can detect the fiber phase transformation more effectively.

Modification of silk fiber with HBP-HTC and its effect on structure and property of the fiber

ZHANG Desuo;LIN Hong;CHEN Yuyue

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  20-23. 

Abstract ( 934 )   PDF (826KB) ( 366 )   Save

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The influence of the treatment on the structure and performance of silk fibers was examined by using SEM, FTIR, XRD, TG, and so on as to provide theoretical basis for modification research of silk fibers. The results showed that the surface of treated silk fibers was etched and the random conformation in the treated silk fibers increased. The relative crystallinity increased slightly and the onset decomposition temperature declined. However, the destruction of structure of the silk fibers was in their surface so that the treatment has little effect on the mechanical properties of the silk fibers.

Metal content determination of metallized fiber by density testing

LI Ruizhou;ZHENG Yuansheng;AO Limin

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  24-26. 

Abstract ( 996 )   PDF (394KB) ( 448 )   Save

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The characterization and measurement of the metal content of the metallized fiber at home and abroad are introduced, and metal content determination of metallized fiber by density testing is proposed. The weight and percentage of plated metal of metallized fiber can be derived form measuring the weight and volume of metallized fiber via the density formula and the law of conservation of mass with konwing the density of plated metal and the basic fiber. The specific operation is discussed using silver content determination of the silver-plated fiber as an example.

Acoustic emission features on damage behaviors of PE self-reinforced composites

WANG Xu;YAN Xiong

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  27-31. 

Abstract ( 1003 )   PDF (762KB) ( 315 )   Save

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The purpose of the present study is to investigate acoustic emission features on damage mechanisms of PE self-reinforced composites. According to quasi-static tensile test on LDPE resin, axial and transverse of unidirectional laminate, matrix damage, interface damage and fiber damage were activated and their AE features were investigated. Experiment revealed that various damage mechanisms resulted in distinct difference in AE features. Matrix plastic transformation and matrix fracture generated AE signal with amplitude 40-60 dB duration less 800µs and amplitude 75-90 dB duration 2300-2600µs respectively. Based on damage level, interface damage generated AE signals with 40-60 dB、less than 500µs，40-80 dB、500-2000µs and over 90 dB、3000-7000µs，respectively. Single fiber breakage and fiber bundle breakage generated AE signals with amplitude 40-75 dB，duration less than 1000µs and over 90 dB、duration 1500-2000µs， respectively.

Acoustical absorption property of elastomer composites consisting of chlorinated polyethylene and seven-hole hollow polyester fibers

JIANG Sheng;YAN Xiong

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  32-35. 

Abstract ( 1037 )   PDF (540KB) ( 413 )   Save

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A series of elastomer composites were prepared with Chlorinated Polyethylene (CPE) as the substrate and seven-hole hollow polyester fibers(SHPF) as reinforcing material. The acoustical absorption property of the samples was studied. The results showed that CPE/SHPF elastomer composites have preferable acoustical absorption property at medium frequency and acoustical absorption coefficient of the samples markedly increased with increasing of the proportion of fibers. Acoustical absorption coefficient of CPE/SHPF composites with 1㎜ thickness is 0.364 in 2500Hz frequency when the proportion in mass of CPE/SHPF is 100/25. The dynamic viscoelasticity of CPE/ SHPF was measured in order to analyze the acoustical absorption mechanism of the composites. It was found that the acoustical absorption is inversely related with their viscoelasticity. This is abnormal, indicating that there are some other factors that influence acoustical absorption of CPE/ SHPF. The mechanical properties of the composites were also tested. The mechanical properties of the composites improved significantly with increasing of fibers. As an acoustical absorption material, CPE/ SHPF composites have potential applications in engineering field.

纺织工程

Tensile strength of tri-component composite yarn and its mechanical model

FAN Lishan;LAI Kan;SUN Runjun;YAO Mu;QIN pei

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  36-39. 

Abstract ( 1125 )   PDF (473KB) ( 309 )   Save

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To analyze and study the tensile properties and breaking features of the tri-component filament and staple fiber composite yarns, the yarns with different twists and different linear densities of each component were tested on a single yarn tester, and the tensile curves were plotted down. The experiments showed that generally there is a feature of multi-peak on the tensile curves of the tri-component composite yarns. The tensile curves of the composite yarns vary with the yarn twist. Moreover, the mechanical model is set up based on the practice of the yarn tension and the novel slider unit is introduced into the model. Its mathematic resolution can better explain the tensile property of the yarn.

Effect of structure parameters on memory properties of thermo-sensitive shape-memory woven fabrics

Jin Guanxiu;HU Jinlian;LU Jing;TAN Dongyi

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  40-44. 

Abstract ( 1112 )   PDF (522KB) ( 313 )   Save

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The principle of compositionality and temperature-response characteristic of shape-memory polyurethane was introduced and a method to describe this shape-memory properties was given. A series of thermo-sensitive shape-memory woven fabrics which have different structure parameters have been developed and tested. The testing results showed that the shape-memory property was not strengthened obviously with the increasing of shape-memory(SM) fiber line density. Moreover, plain woven fabric had the best shape-memory properties, but there were not obvious differences among other woven structures. In addition, with the increasing of fabric tightness, single-way SM fabric shape recovery ratio(SR) would decline and the shape fixity ratio(SF) would rise slightly, but both the SR and SF of two-way fabric would drop. When using bamboo fiber as the warp yarns, the fabric had the best shape-memory property. However, no evident differences were shown when using other fiber as warp yarn. Furthermore, the SR of two-way SM fabic was higher significantly than that of single-way fabric, but the SF of single-way SM fabric was superior to that of two-way fabric. Finally, the results showed that the other way of single-way SM fabric also had shape-memory function but with lower index, and as to fabrics with SM as weft yarn, the SF in warp direction was totally higher than in weft direction.

Fabric friction as affected by different human skin

WANG Xu;LIU Ping;WANG Fumei

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  45-49. 

Abstract ( 1118 )   PDF (660KB) ( 480 )   Save

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In order to investigate the dependence of friction properties on gender and body parameters, friction experiments between fabrics (a group of woven fabrics and a group of knitted fabrics) and 20 volunteers’（10 male and 10 female）inside forearm skin are carried out with a fabric-skin friction tester. It is found that there is a significant difference of friction between female and male skin when rubbing with some fine and smooth fabrics. The dynamic friction between female skin and fabrics are significantly larger than the male’s. Gender difference basically has no influence on the coefficient of mean deviation of the dynamic friction between fabric and skin. In addition, there are not any significant differences of friction and their coefficient of mean deviation between fabrics and skin in terms of human body height, weight, age and body mass index within 20-30 age group.

Effect of blending ratio on the bending property of cotton and bamboo / cotton mixed fabric

CHEN ZHIHUA;WU Peiyun

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  50-54. 

Abstract ( 1198 )   PDF (928KB) ( 302 )   Save

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For further utilizing the characteristics of bamboo fibers and developing fine textile fabrics，we have designed and developed 15 kinds of mixed fabrics with different specifications by using five kinds of blending ratio of bamboo/cotton warp and filling, The drape, rigid flexibility, and crease resistance were tested. The results showed that the cotton and bamboo/cotton mixed fabric has better drape, rigid-flexibility and crease resistance than the pure cotton fabric. With increase of bamboo fiber content in the filling, the static and dynamic drape coefficient of the mixed fabric decreased, while the drapability and form improved, the bending rigidity and bending modulus of elasticity decreased, and the softness improved. Elastic recovery angle increased, and crease recovery and crease resistance enhanced, when the fabric structure, raw materials and warp density were the same, the drape and rigid flexible decreased, and both the fast and slow elastic recovery exhibited a downward trend with increase of weft density. When the blending ratio of bamboo/cotton blend filling was 55/45, the symmetry of the fabric form was poor and care should be taken when choosing this ratio.

Manual weaving technology of Lu Brocade

REN XueLing;ZHU Sukang

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  55-58. 

Abstract ( 1037 )   PDF (2475KB) ( 395 )   Save

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Based on profound investigations of Lu brocade, we explore the weaving technology of Lu brocade by collecting, classifying and analyzing a great deal of patterns, and probe into the weaving technology of several typical patterns by using engineering technology methodology with focus on patterns by warp threads. It is considered that some historical origin exits between Japanese Hakata-or I and Lu brocade in respect of making patterns by warp threads. Through manufacturing of cloth-wrapper band, the unique hanging-warps weaving technology of Lu brocade is analyzed. Based on the weaving pattern of seven characters, we analyze the framework-saving drawing method originating from an ancient method-a warp yarn passing through several frameworks. In addition, the loop transfer technology of Lu brocade is discussed. Finally, we conclude that some weaving technology of Lu brocade are scientific and creative, which can not be implemented by modern loom.

Automatic location of woven fabric crossing points via Hough transform

PAN Ruru;GAO Weidong;LIU Jihong;WANG Hongbo

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  59-63. 

Abstract ( 1267 )   PDF (1760KB) ( 592 )   Save

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To recognize the weave of woven fabrics, the crossing points should first be located and recognized. To overcome the limitations of conventional crossing points segmentation method, Hough transform is proposed to detect the skew angle of the warp and weft, and then coordinate transform is applied for the pixels in the fabric. By accumulating the gray levels of the pixels in the same horizontal or vertical line in the fabric image after coordinate transform, the projection curve can be obtained. By locating the minimums in the projection curve, the warps and wefts can be segmented individually. The crossing points can be located by combining the warp and weft segmentation results. The experimental results show that the algorithm proposed in this study can locate the cross points in fabrics with skew weft or warp yarns.

Loop offset of warp-knitted structures in 3-D simulation

ZHANH Lizhe;JIANG Daoming

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  64-67. 

Abstract ( 1004 )   PDF (1051KB) ( 480 )   Save

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In order to simulate the loop construction of warp-knitted structures more truly with computer technology, loop offset theory and calculation formula are derived after observing the loop construction of all kinds of warp-knitted fabrics and analyzing the regulation of loop offset caused by yarn tension. The theory assumes that offset is the accumulated value of each loop offset in the same needle. Applying the theory to the three-dimension model of warp-knitted loop, the coordinates of some control points defining the loop are amended. Finally, computer 3-D simulation of tricot warp-knitted fabrics is successfully realized with the program language Visual C+ +. NET and the tool of OpenGL. Comparing the simulated images with the real fabrics, it is found that there is high similarity on fabric construction between them.

Analysis on thermal properties of the hemp needle-punched felt treated by Mg(OH)₂

DU Zhaofang;LIU Xiaohua;CHENG Xiansheng;SONG Lei

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  68-71. 

Abstract ( 995 )   PDF (440KB) ( 314 )   Save

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The flame-retardant finishing of the hemp needle-performed with Mg(OH)2 (mass concentration 300g/L) and adhesive (volume concentration 20%) with imprenating time 20 min. The thermal properties the hemp needle-punched felt before and after flame retardant finishing were analyzed by using thermo gravimetry (TG) and differential thermal analysis (DTA). The results revealed that the hemp needle-punched felt treated by Mg(OH)2 has the initial pyrolysis stage 0 ~ 330 ℃, the main pyrolysis stage 330 ~ 400 ℃, and the residual pyrolysis stage 400 ~ 600 ℃. The speed of hot weightlessness and maximum hot weightlose reduces obviously, and the rate of remains of the carbon increases and the initial temperature of thermal decomposition increases. The first exothermic peak value reduced 50% , no second exothermic peak is observed, indicating that the Mg(OH)2 has imparted good flame-retardant effect to the hemp needle-punched felt.

染整与化学品

Determination of multi-residues of alkylphenols and alkylphenol polyethoxylates in down and feather by accelerated solvent extracting and high performance liquid chromatography

WU Gang;ZHAO Shanhong;WANG Huaxiong;WU Jianjian;GUO Fanglong;WAN Lijun;XIE Weibin;SONG Baoguo;YE Qingfu

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  72-77. 

Abstract ( 1193 )   PDF (637KB) ( 359 )   Save

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A rapid method was developed to determine the multi-residues of alkylphenols and alkylphenol polyethoxylates in the down and feather by high performance liquid chromatography. The samples could be extracted with methanol by accelerated solvent extractor (ASE). Then, the collected solution was analysed by HPLC with fluorescence detector (FLD) and quantified by external standard method. The Sinochrom ODS-BP column was selected，and the mixture of methanol-acentrile-water（81︰6︰13，V︰V ）was used as the HPLC mobile phase. The excitation wavelengh and the emission wavelengh were set at 230nm and 296nm, respectively. The result shows that the alkylphenols and alkylphenol polyethoxylates in the down and feather were separated efficiently from impurity in high sensitivity and reproducibility by HPLC-FLD.

Enzymatic processing for wool fabric based on cutinase pre-treatment in reverse micelles followed by protease treatment in aqueous phase

WANG Ping;FAN Xuerong;MA Xiaoyun;WANG Qiang;CUI Li;ZHAO Xianfei

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  78-82. 

Abstract ( 1106 )   PDF (831KB) ( 304 )   Save

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To improve the wettability of wool surface by lipid removal and the efficacy of succeeding proteolytic reaction by Savinase in aqueous phase, the effects of surfactant, cutinase concentrations and others in reverse micelles on wettability, weight loss and alkaline solubility of wool fabrics were studied. The results indicated that the protease-treated wool fabrics presented desirable wettability and acceptable fiber damages when pretreated with 2%(o.w.f) of cutinase in the reverse micelles (the volume ratio of cyclohexane, alcohol and Tween-80 was 5:1:1, and the molar ratio of H2O and Tween-80 was 25). The result from amino acid analysis showed that the relative mass concentration of cystine decreased remarkedly after the combination of cutinase and protease treatments. SEM images further proved that the combined enzymatic process led to a more satisfactory removal of scales from wool surface.

Hydrophilic surface modification of wool by ionic liquid/protease treatment

YUAN Jiu-Gang;WANG Qiang;FAN Xuerong;ZHOU Lihua;FENG Fei

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  83-87. 

Abstract ( 1087 )   PDF (626KB) ( 313 )   Save

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An ionic liquid 1-butyl-3-methylimidazolium chloride which has a good solubility for wool keratin was employed as a pretreatment step in protease processing. The effect of IL pretreatment combined with protease process on the wettability of wool fibers and fabric was analyzed through wetting time, water uptake and contact angle tests. The results revealed that IL pretreatment could sufficiently improve the efficiency of protease processing. The wettability of wool samples after the combined treatments was improved. The water wetting time and contact angle of wool fabric decreased quickly while water uptake of wool fibers increased. The tests of weight loss and XPS showed that IL pretreatment improved the hydrolyzation efficiency of protease, and thus inducing more hydrophilic protein groups exposed.

Hydrophilic surface modification of wool by ionic liquid/protease treatment

MIAO Hongchao;LIN Hong;CHEN Yuyue

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  88-91. 

Abstract ( 1091 )   PDF (907KB) ( 425 )   Save

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Nano-silver solution was prepared by deoxygenation with natural cactus solution, which is simple and non-polluting. The size and distribution of cactus silver nanoparticles were studied using HPPS and TEM. Functional treatment of the B. mori silk fabric was performed with nano-silver solution, and the antibacterial property and wash durability of the treated fabric were investigated. The results showed that the resultant cactus silver nanoparticles have a size about 50nm, the uniformity and the dispersivity is good. The experiments show that the finished fabric has good antibacterial activity. When the silver content on silk fabric was about 268.58 mg/kg, the bacterial ratio is over 99%, and the bacterial ratio is over 98% after washing 50 times, indicating the good antibacterial property and wash durability of the fabric.

服装工程

Effects of waist and lower limb movement on clothing ease design

WANG Yongjin;MOK Pikyin;LI Yi;KWOK Yilin

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  92-97. 

Abstract ( 1211 )   PDF (1152KB) ( 420 )   Save

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Based on 1600 measurements of 10 subjects measured in natural standing state and shoulder joint movements, two statistical methods, including factor analysis and one-way ANOVA, were used in this study to explore principal body measurements and analyze effects of different waist and lower limb movements on each principal body measurement for clothing ease design, which were helpful to dynamic pattern design. The findings showed that changes of all body measurements in waist and lower limb movements were different and 9 measurements were principal body measurements, which were used in bottom pattern making. Except waist and ankle girth, effects of waist and lower limb movements on each principal body measurement were significant, especially on hip girth and back central length of leg. Finally, clothing ease design and fabric elasticity design were discussed according to the changing results of principal body measurements in different movements.

Analysis on spring/summer fashion colors characteristics and changing rules

CHANG Lixia;GAO Weidong;LU Yuzheng;PAN Ruru

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  98-103. 

Abstract ( 1028 )   PDF (775KB) ( 350 )   Save

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This paper aims to explore fashion colors distribution characters and their changing rules in their three attributions，including lightness, hue and chroma. The quantitative analysis on fashion colors, released by three authoritative fashion color forecasting agencies，i.e. , Pantone Agency, International Commission for Color in Fashion and Textiles and View International Fashion and Fabrics were made by mintab15 software. The distribution characteristics and changing rules of fashion colors released by every agency were discussed. Meanwhile comparisons of fashion colors among the three agencies were undertaken. The results show that there are certain rules existed in the fashion colors such as the presentation of typical double peaks and contrast of cold and warm tone in hue and so on. IC colors play the leading role for other forecasting agencies as shown by single factor variance analysis.

Transition of modern Qilu folk costume culture under influence of confucianism cultural

Qi Yan;FAN Xuerong;CUI Rongrong

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  104-110. 

Abstract ( 1189 )   PDF (1148KB) ( 352 )   Save

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In China people’s values, way of thinking, political conviction and social order are deeply influenced by confucianism culture. Traditional costumes are so obviously restricted by confucianism culture that they have become a distinctive mark of grade, status and identity. According to the study of the hierarchy, aesthetic and interpretation of folk emotion in the Qilu folk costumes culture and the analysis of objects in the Folk Costumes Museum of Jiangnan University, this paper elaborates that Chinese costume culture is a process from〝compliance〞 to 〝antagonism〞 under the influence of confucianism culture. Based on the analysis of 〝compliance〞 and 〝antagonism〞 phenomenon respectively, the reason of Chinese costume culture from 〝compliance〞 to 〝antagonism〞 is that the changes of the social formation and history, the Promulgation of the Dress Orders of government as well as promotion of western-style education. This research plays a certain role in providing complements and substantial evidances for further study of confucianism culture, Chinese clothing culture and Qilu folk culture.

机械与器材

Design of HR-I electronic jacquard machine controller

WU ZhaoYang;SU Jun;CHENShuxia;RUI yannian

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  115-118. 

Abstract ( 1100 )   PDF (513KB) ( 368 )   Save

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For rapid change of pattern and abandon of jacquard card, reduction of the waste of funds and materials，this paper proposed a low cost electronic jacquard control technology aiming to in replace of the mechanical jacquard based on analysis of domestic and foreign electronic jacquard technology, The MCU ATmega128 is used as the core, jacquard data transmission is affected by CAN-bus, thus realizing long-distance transmission of the data. The MCU ATmega16 receives the data from CAN-bus, and distributes data to the jacquard Modules through synchronous serial interfaces under external interrupted signal. The amplified signal drives the electromagnetic valve and the jacquard loom controls the motion of individual warp yarn. The on-site experiments show that the system is characterized by non-error data transmission, good reliability and anti-interference, rapid and convenient change of pattern, satisfaction of weaving requirement, and raising the productivity.

Comparative analysis of testing stability between AFIS and aQura

CAO Jipeng;SUN Pengzi

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  123-127. 

Abstract ( 1120 )   PDF (452KB) ( 288 )   Save

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This paper makes a comparative analysis of testing stability between AFIS and aQura. After testing card sliver produced by two different experiments (twelve plans in each experiment) with AFIS and aQura, the test results are analyzed with the theory of statistical analysis and the range and average of test times that can get a reliable test result of common test parameters of AFIS and aQura are calculated. The following conclusions are drawn that for the parameters of SCN number, SCN size and total neps number, the testing stability with aQura is much better than that with AFIS. For the parameters of nep mean size, 5% length, short fiber content by weight and short fiber content by number, there is no evident difference in test stability between aQura and AFIS, and test stability of them are all very high.

管理与信息化

Computer Simulation Research on Batik Crack Patterns

TANG Ying;FANG Kuanjun;FU Shaohai;TIAN Anli;ZHANG Lianbing

JOURNAL OF TEXTILE RESEARCH. 2010, 31(3):  128-132. 

Abstract ( 1388 )   PDF (1284KB) ( 416 )   Save

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To solve the problems encountered in digital simulation of batik crack patterns, this paper has proposed an improved efficient algorithm of crack simulation based on distance transformation and analysis on characteristics of crack on hand-made batik dyeing in different conditions. Firstly, the initial position was determined after distance transformed. Then the spread direction was determined according to the gradient of distance transformation. Finally, the dyeing of cracks was simulated by using Multiplicative Color Model regarding to the different features of cracks and the crossing area between the old cracks and new ones. The results demonstrate that the proposed method can perform lifelike crack simulation on batik, and batilk effects with various crack patterns can be plotted by varying parameters.