Table of Content

15 February 2012, Volume 33 Issue 2

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Effect of alkali treatment on the structure and electrical properties of Polypyrrole/PET fiber

RUAN Fang-Tao, JIN Xin, WEI Yi-Jun, WANG Wen-Yu, GUO Cheng-Yue, XIAO Chang-Fa, XIE Chun

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  1-5. 

Abstract ( 1376 )   PDF (993KB) ( 457 )   Save

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The conductive composite synthetic fibers which prepared by polypyrrloe depositing polymerization, It’s uniformity of conductive coating and adhesion stress between coating and fibrous matrix are poor. This research attempted to prepare PPy/PET conductive fibers by alkali-treatment and pyrrole liquid-phase deposition polymerization, the uniformity of coatings and adhesion stress were investigated by SEM and abrasion testing, it was found that the alkali-treatment can improve uniformity and adhesion stress of coatings, and the electrical capability was improved . PET fibers’ structure and performance which effected by alkali-treatment were investigated by a series of thermal analysis, such as DSC,DMA,TG, the experimental results showed that degree of fibers’ crystal decreased and Tg increased after the alkali treatment; PPy/PET fibers has better heat resistance due to the PPy coatings. At the same time, this research also optimized processing conditions of alkali-treatment to PET fibers.

Structure and temperature-regulating performance of Outlast viscose fiber

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  6-9. 

Abstract ( 1372 )   PDF (1029KB) ( 477 )   Save

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In order to analyze the structure and temperature-regulating performance of Outlast viscose fiber, the structure of Outlast viscose fiber was observed respectively by FTIR spectra, X-ray diffraction and scanning electron microscope, and the temperature-regulating performance of Outlast viscose fiber was investigated by differential scanning calorimeter, thermal gravimeter analysis and cooling test. The results show that the structure of Outlast viscose fiber is similar to that of normal viscose fiber. Both the melting peak and crystallization peak of Outlast rayon fiber are double peak, and the phase change temperature range is applicable and the phase change enthalpy is high. The decomposition temperature of Outlast viscose fiber is about 280~320℃. The cooling velocity of Outlast viscose fiber decreases exponentially as the time increases, and the temperature-regulating ability of Outlast viscose fiber is obviously better than that of normal viscose fiber.

Influence of milk protein grafting on the performance of rabbit fiber

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  10-15. 

Abstract ( 1001 )   PDF (1274KB) ( 363 )   Save

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To improve the rabbit fiber’s surface friction coefficient and tensile strength, the fiber’s surface is grafted using milk protein and cross-linking agent SFEGE with the pretreatment of H2SO4 and H2O2 respectively. In this paper, analysis of some index such as surface topography, friction coefficient and strength of grafted rabbit fibers is performed. Research results show that, with the pretreatment of H2SO4, under the condition of 10% protein and 1% ~ 1.5% cross-linking agent concentration, milk protein grafting on the fiber surface reaches the best, the friction coefficient and strength growth can respectively achieve 40.97% and 4.96%. The grafting effect with the pretreatment of H2O2 is relatively poor. Although the friction coefficient growth can reach 32.33% under the condition of 10% protein and 1.5% cross-linking agent concentration, fiber tensile strength declined sharply.

Study on the properties of the different flame retardant viscose fiber

WANG Ying, JIN Xin, WANG Shao-Wei

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  16-20. 

Abstract ( 1301 )   PDF (1249KB) ( 450 )   Save

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The export demand of viscose fiber must be up to the standards of the flame retardants, taking the safe and nontoxic, and easy to problems of industrial production. The viscose fiber adds separately TBEP, sodium silicate, melamine by the method of spinning mixing. The flame retardant viscose fiber Ⅰ, Ⅱ, Ⅲ are obtained. The test and study on the flame retardant properties are evaluated by Limit Oxygen Index (LOI), infrared spectroscopy (FTIR), thermal gravimetric (TG), differential thermal analysis (DTA), and combined with differential thermal analysis and infrared spectroscopy (DTA-FTIR). The limit oxygen index of flame retardant viscose fiber Ⅲ could reach 32.8. FTIR shows that the flame retardants were effectively connected the to the viscose fiber. TG-DTA shows that the charring is enhanced, while the stage of the dehydration is advanced, and the stages of the oxidation and decomposition become gentle. DTA-FTIR suggests that the combustion product is water, CO, CO2. The flame retardants are safe and innocuous.

The structure and properties of the PLGA/PLA blended nanofibers

LIU Hua, WANG Shu-Dong

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  21-25. 

Abstract ( 1439 )   PDF (1077KB) ( 403 )   Save

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To prepare tissue engineering scaffolds, the the biocompatible PLGA and PLA are used as materials. The PLGA/PLA blended nanofibrous membrane is fabricated via electrospinning. The structure and properties of the PLGA/PLA blended nanofibers are characterized by means of SEM, rheometer, TG-DSC and tensile tester. The results show that the PLGA/PLA blended micro-nanofibers can be prepared successfully by electrospinning. The viscosity of the spinning solution increases with the increase of the blended ratio of PLA, which induces the increment of the diameters and leads the diameters distribute uniformity, and also results that the pose diameters increase and porosities decrease. The thermal analysis indicates that the crystallinity and stability of the PLGA/PLA blended nanofibers increase with the increase of the blended ratio of PLA. The breaking strength increases and the elongation decreases with the increase of the blended ratio of PLA. In order to meet the requests of different tissue engineering scaffolds, the blended ratio can be adjusted to control the structure and properties of the scaffolds.

Waterborne polyurethane: synthesis and its application on cotton fabrics surface

NIAN Yi-Ting, ZHANG Zhi-Ying, DAN Jian-Lin, TANG Ya-Xin, DONG Zhi-Zhi, XIAO Chang-Fa

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  26-31. 

Abstract ( 1144 )   PDF (1138KB) ( 423 )   Save

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Two-component waterborne polyurethane coating consists of a polyisocyanate as a curing agent and a dispersion polyol of aqueous crosslinked polyurethane, which was synthesized by using polycarbonate diol(PCDL), dimethylol propionic acid(DMPA) and isophorone diisocyanate(IPDI) as preplolymerization material and then extended with trimethylol propane(TMP). It was applied on cotton fabrics surface in order to research the effect of polyurethane coating on cotton fabrics water resistance, the treated cotton fabrics was characterized with scanning electron microscopy(SEM), contact angle and water absorption analysis. The results indicate that the fiber bundles of treated cotton fabrics surface is tightly conglutinated together, it shows very good hydrophobicity, the contact angles for water can reach 130°, and the water absorption of treated cotton fabrics decrease to 9%. In addition, it also shows good washing durability, the contact angles still reach 90° even after 12 washing cycles and the water absorption is much smaller.

Technology parameter optimization of roving spacer of cable type core-spun yarn

WU Wei-Mian, YANG Rui-Hua, WANG Hong-Bo, GAO Wei-Dong

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  32-34. 

Abstract ( 1062 )   PDF (845KB) ( 634 )   Save

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This article studied the structure parameters design of the solospun roller which is one of the important components to spin the core-solospun yarn, including material, thickness of edges, width, depth and diameter of the groove. By comparing the spinning performance, polyformaldehyde was chosen to be the solospun roller material. Structure sizes optimized through orthogonal experiment were that the thickness of edge was 0.2mm, groove diameter was 13mm, shallow groove was 0.3mm, deep groove was 0.4mm, and width of groove was 0.5mm. Under the same spinning conditions, polyester/cotton core-solospun yarn and core-spun yarn were spun. The yarn property test indicated that: compared to ordinary core-spun yarn, the hairiness of core-solospun yarn reduced by 44%, but the breaking strength and the evenness had no obvious difference; The yarn slice stated that the coverture of core-solospun yarn was better than ordinary core-spun yarn with the core yarn position relatively stable.

Loop forming property of glass fiber during warp knitting

MIAO Xu-Hong, LIU Jie-Qiong

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  35-39. 

Abstract ( 954 )   PDF (1050KB) ( 430 )   Save

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The glass fiber yarn is damaged easily during knitting process and difficult to be knitted into fabric. The knitting experiments are carried out with two specific glass fiber yarns knitted on different machine type. The influencing factors such as knitting elements, let-off device, take-up and batching mechanism, yarn twist, direction of twist, Glass fiber soakage agent are discussed. The bad side of fabric which is caused by yarn twist and direction of twist is analyzed. The key warp knitting technology of glass fiber is concluded. It’s proved that textile glass fiber yarn can be knitted successfully on tricot warp knitting machine with compound needle and positive let-off Mechanism.

Dynamic tension analysis of yarn strand in tufting jacquard carpets

GAO Xiao-Ping, SUN Xin-Ze, MENG Chuo, XU Yang, SUN Zhi-Jun

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  40-45. 

Abstract ( 1017 )   PDF (1152KB) ( 361 )   Save

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It is essential to research the forming of yarn tension and its effects during tufting process for controlling its vibration due to the control of jacquard roller and improving the carpet quality. In this paper, assuming that the yarn strand is a linear elastic with a circular cross section. Taking the dynamic tension as an output and the braking moment applied on the Jacquard roller as an input. At a moment of clutch operating and releasing, the dynamic tension fluctuations of yarn strand during transmitted between the jacquard roller and drag roller are theoretical analyzed. A mathematical model describing the yarn strand tension fluctuation is derived from theorem of moment of momentum and material balance. The dynamic tension is obtained by applying Laplace's transformation and providing that the input braking moment is a step response. The amplitude, frequency and damping coefficient of yarn tension fluctuation are obtained. The result shows that the braking moment has an important influence on the yarn strand tension fluctuations, suggesting a necessity of careful designing and controlling of Jacquard roller and friction plate of clutch. At the same time, the effect of the length of yarn strand from jacquard rollers to drag rollers on natural frequency and damping coefficient of fluctuation of yarn strand tension are analyzed.

Fabric image mosaicing technology based on grille

YAO Gui-Guo, LIANG Jin-Xiang, ZUO Bao-Qi

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  46-49. 

Abstract ( 990 )   PDF (869KB) ( 417 )   Save

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The image mosaic technology is an important branch in computer vision and digital image processing. In this paper, firstly, research the influence on similarity measurement time and accuracy by absolute difference, difference of squares and normalized correlation coefficient .Then, eliminated the effect of splice joints by the integration of different methods of arithmetic average, weighted average and multi-resolution wavelet fusion. Finally, through analyzed the time complexity and accuracy of matching and the integration effect to find the suitable method for fabric image mosaic. The result showed that the use of gray-scale grid-based matching and application of the weighted average method is well positioned to complete the integration of image stitching fabric.

Synthesis process optimization and characterization of carboxymethyl wheat starch with high degree of substitution

WANG Hai-Long, ZHANG Ling-Ling, WANG Xin-Li

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  50-54. 

Abstract ( 1072 )   PDF (988KB) ( 394 )   Save

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Abstract:Carboxymethyl starch (CMS) with high degree of substitution (DS) was synthesized from wheat starch and chloroacetic acid in the present of sodium hyroxide. The process conditions were optimized by orthogonal experiment with the amount of starch of 4 g, the optimized conditions were obtained as follows：amount of water of 6 mL，amount of absolute ethyl alcohol of 60 mL，molar ratio of chloroacetic acid to starch 1.4，molar ratio of sodium hydroxide to chloroacetic acid 1.8，amount of alkalization of sodium hydroxide 70%，alkalization temperature 35℃～40℃，alkalization time 0.5～1 h，etherification temperature 50～55℃，etherification time 2～3 h，the value of DS was 1.21 under the synthetic conditions.

Influence of introduction of CBD on adsorption of cutinase on cellulose fibers

ZHOU Li-Hua, WANG Qiang, FAN Xue-Rong, WU Jing, CHEN Yun, CAO Jian-Hua, LIU Zhe

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  55-58. 

Abstract ( 1283 )   PDF (1020KB) ( 444 )   Save

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To study the influence of adsorption capacity in the cellulose fiber when fusing Cellulose-binding Domain（CBD） into cutinase, we selected bleached cotton, viscose fiber, cellulose acetate fiber, and prey cotton knitted fabric, and had comparative tests about adsorption capacities between cutinase and cutinase-CBD. The results show that: after fusing CBD into the cutinase the binding protien amount between cutinase and cellulose fibers have inhanced. In case the glucose residue of cellulose hydroxyl groups are partially esterified, the impact of the introduction of CBD structure on the adsorption began to weaken. On condition the cellulose fiber surface is covered by the hydrophobic impurities, the adsorption capacity of cutinase-CBD decreased.

Physicochemical properties of monascorubrin

BAI Gang, LI Bei-Bei, SANG Yan-Xia, LIU Yan-Chun

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  59-62. 

Abstract ( 1855 )   PDF (771KB) ( 430 )   Save

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The physical chemical properties of monascorubin were investigated in order to discuss the application feasibility of monascorubrin in dyeing and printing industry. The solubility, acid and alkali resistance, hot stability and light stability of monascorubin were researched. The effect of mordants on monascorubin was also investigated. The results showed that monascorubin could be dissolved in water. It was relatively stable under 100 ℃. In the range of pH 3~11, it was stable for pH values. Monascorubin maintained stable in the ultraviolet radiation, but sensitive to the visible light. Ferrous sulphate had little effect on monascorubin, while potassium dichromate and copper sulphate had disadvantageous effect on the pigment. Praseodymium chloride had the protection of color, which would improve the color fastness of monascorubin.

Optimization of culture conditions for laccase production from Polyporus elegans Fr.

XU Xue-Fei, BI Yun-Feng, JIANG Hai-Qin, SHEN Ming-Hao

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  63-67. 

Abstract ( 957 )   PDF (851KB) ( 390 )   Save

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The 9 factors that influenced laccase production from Polyporus elegans Fr. was studied using Plackett-Burman design. The result showed that the main nutrition factors was C/N ratio, the concentration of Cu2+ and pH. On that basis，response surface analysis were adopted to investigate the optimal levels of the 3 main factors. The result was undertaked the second regression analysis using Design-Expert software and showed that the laccase activity was 446U/mL(178U/mL before optimization) when the C/N ratio, the concentration of Cu2+ and pH was 4:1, 0.1 mmol/L and 5.5 respectively.

Application of tea polyphenol on dyeing of silk and its anti-ultraviolet property

QIAN Hong-Fei

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  68-72. 

Abstract ( 1663 )   PDF (998KB) ( 493 )   Save

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In order to probe into the dyeing and anti-altraviolet property of tea polyphenol on textile fabric, the high-purity tea polyphenol was applied to silk by using ferrous sulfate, copper sulfate and potassium aluminum sulfate as mordant respectively, and with post-mordanting method. The study result shows that the color hue of silk varied with mordants., ant the dyeing of silk with tea polyphenol had good buid up property. During washing fastness test, relatively great color change was occurred, particularly with ferrous salt, but the staining on adjacent fiber was slight whilst the apparent color depth at their maximum absorbent wavelength for all samples was increased. By measurement of ultraviolet transmittance curve of dyed silk, it was observed that dyed silk with tea polyphenol would provide with desirable anti-ultraviolet property. Under the same mass concentration of tea polyphenol and the same amounts of metal ion, the silk with ferrous salt mordant produced the best anti-ultraviolet property at A ultraviolet band, followed by copper and alum salt. While all the three kinds of mordants had the similar anti-ultraviolet property at B and C ultraviolet band.

Cationic modification of silk∕cotton union fabric and its dyeing properties

WANG Hua-Qing

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  73-79. 

Abstract ( 1567 )   PDF (1299KB) ( 498 )   Save

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Silk/cotton fabric was modified by color media and achieved dyeing of reactive dye without salt and alkali in one bath. The different reactive dye were applied to dyeing of silk/cotton in one both and optimized to obtained trichromatic reactive dyes for dyeing of silk/cotton in one both by analyzed the balance value of union dyeing K and color-difference ?E. The dosages of Color Media, temperature and time were discussed to affect on dyeing in one bath of silk/cotton fabric, and the optimal modified process was obtained by orthogonal experiment design. The results indicate that the ratio of dye-uptake and fixation, union dyeing property and strength reserved ratio of fibre were increased obviously and color fastness was not decreased by compared traditional dyeing.

Structure and antibacterial performance of silver-supported mesoporous silica antibacterial agent

YAO Yun-Fei, ZHU Hai-Lin, FENG Xin-Xing, CHEN Jian-Yong

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  80-84. 

Abstract ( 1277 )   PDF (1023KB) ( 452 )   Save

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Owing to special channels of mesoporous silica SBA-15, an novel silver-supporting mesoporous silica antimicrobial (Ag/SBA-15) was synthesized by one-step method with adding Ag into the process of preparing mesoporous carrier. Ag/SBA-15 and SBA-15 were characterized by X-ray diffraction(XRD),transmission electron microscopy(TEM), electron spectroscopy(EDS), atomic absorption spectrometry(AAS) and N2 adsorption-desorption isotherm. And the antibacterial property of Ag/SBA-15 against colon bacillus and staphylococcus aureus were also studied. The results showed that the prepared antimicrobial with the content of Ag accounting to 14.8% still remained an ordered mesoporous structure with Ag evenly dispering in the mesoporous carrier and possessed good release behavior.Meanwhile,Ag/SBA-15 antimicrobial was shown to be an effective bactericide against colon bacillus and staphylococcus aureus.The minimal inhibitory concentration(MIC) was 40?g/ml.

Effects of cutinase on environmentally acceptable shrink-resistance finishing of wool

YU Zhu-Qing, WANG Shu-Gen, WANG Qiang, TIAN Xiu-Zhi, WANG Ping

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  85-88. 

Abstract ( 1285 )   PDF (927KB) ( 425 )   Save

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Abstract：To improve the current situation that the traditional wool shrink-proofing process can not meet the ecological requirements, this paper focused on the shrink-resistant finishing of Gabardine and Valitin by the eco-friendly combination of H2O2/cutinase/protease. The results showed that the use of cutinase obviously enhanced the shrink-proofing effect. And the shrinkage rates of Gabardine and Valitin after finishing reached 0.25% and 6.5%, respectively, which had met the IWS standard of machine-washable. Moreover, results from the dye absorbing rate and alkaline solubility showed that relative to the sample treated without cutinase, the one treated with cutinase had higher dye absorbing rate and lower alkaline solubility, which suggested that cutinase could break the scales of wool surface to a higher extent. Thus, looser structure in the scales made the further treatment of protease take place more possibly in the scales, reducing the hydrolysis to woolen cortex by protease.

Jacquard partition design of warp knitted seamless upper outer garment based on pressure comfort

WU Zhi-Ming, ZHAO Min

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  89-93. 

Abstract ( 1080 )   PDF (1097KB) ( 495 )   Save

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In order to study the jacquard partition design of warp knitted seamless garment, objective stress test and subjective evaluation were used to study pressure comfort and get the comfortable range of warp knitted seamless garment. By pressure measurement and given elongation tensile test of jacquard fabric, the relationship between jacquard organizational structure and clothing pressure was discussed. The results showed that organizational effect of jacquard fabric was correlated with tensile elastic recovery, and it had positive correlation between clothing pressure and elastic recovery for warp knitted seamless garment. When jacquard organizational effect was thicker, the pressure on the human body would be greater. This paper presented a method of jacquard partition design of warp knitted seamless upper outer garment, with theoretical and practical significance.

Factors influencing extensibility  of knitted piping around collar

XU Li-Ping

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  94-97. 

Abstract ( 1006 )   PDF (866KB) ( 496 )   Save

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In order to find out the influencing factors of knit trim collar stretchability, six different properties of knitted fabrics were Selected. Influences of performance of different fabrics and different sewing conditions on stretchability of trim collar were studied through experiments. The results show that fabric properties had greater impact on trim collar’s stretchability. Influences of the horizontal density, the density and elongation on trim collar stretch were positive correlation. The higher horizontal density, vertical density and elongation at break, the better the Stretchability trim collar. trim collar stretch was negatively correlated with the fineness. The smaller fineness , the better the stretchability of trim collar. When the fabric and stitch density were the same, stretchability of single-needle trim collar was better than the needle. When fabrics and number of needle were the same, the more stitch density, the better the stretch.

Nantong’s blue print cloth：yesterday, today, and tomorrow  

XI Yan-Feng, LIANG Hui-E

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  98-103. 

Abstract ( 2068 )   PDF (1531KB) ( 677 )   Save

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The Nantong blue printed cloth is one of our country folk traditional processes, she by its plain simple and elegant, contains exquisitely in, is full of the rich rural customs public sentiment to have the unique fine reputation in the material cultural history. Through traces the Nantong blue printed cloth in each historical period development, points out it in aspect and so on dyeing craft, grain type modeling evolutionary processes. From the Nantong blue printed cloth in the past as well as the present management, survival state analysis obtaining, pointed out only has the tradition and the modern union, can cause the traditional process culture to glow the new vitality. And take this as the standpoint, through with other representative local blue printed cloth present situation analysis, pointed out the Nantong blue printed cloth the superiority which in raw material、 the region、 design idea、 production management、industrial chain aspects and so on formation has.

 Study on made-to-order designing mode

LIU Li-Xian, GUO Jian-南, ZENG Li

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  104-108. 

Abstract ( 1691 )   PDF (1046KB) ( 934 )   Save

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At present, most made-to-order companies are lack of effective design planning in China, meanwhile, the conventional theory has not apply to the particularity of made-to-order design. Due to these factors, the author conducted relevant reflection and exploration from modern marketing strategy, and then the basic framework of made-to-order design mode was finished. Based on the positioning, experience, strategy and design mode, the author forms a relatively integrated made-to-order design chain, including product experience, situation experience and interactive experience. The mode is not only about design method thinking, but also ideas combing and methods exploration about design for Chinese made-to-order companies. It also provides some methods for references when these companies launch the specific made-to-order design.

Automatic measuring and analyzing system for characteristic parameters of cross section of Y-Shape fiber

QU Chang, CHEN Xing-Qiu, WANG Jun-Ze, ZHANG Xiao-Ping, LIU Yao-Feng

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  109-114. 

Abstract ( 1047 )   PDF (1344KB) ( 514 )   Save

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The traditional measuring method for the shape factors of profile fibers could not meet the requirements of current producing of profile fibers. The technology of digital image processing is widely used in analyzing of fiber cross section and in measuring of the section characteristic parameters for its unique advantage. An automatic measuring and analyzing system for characteristic parameters of cross section of Y shape fiber is developed based on VB platform and presented in this paper. The fiber cross section boundary and other parameters, such as area, circumference, circumscribed circle, inscribed circle and etc. can be obtained by using the boundary detection approach, including one point method, manual repairing, three point method and etc. Then the fiber shape factors are automatically calculated. The measuring data of fiber shape factors and corresponding processing parameters, including size moisture, size temperature and preheating temperature of size, can be output in the form of Excel list. The analysis of relevancy between fiber shape factors and spinning processing of fiber is also realized. It shows that the system can provide good measuring precision and high efficiency. And its function of automatic analysis is of benefit to optimization of processing of Y shape fibers.

Design and analysis on filter of rapier Loom’s warp tension control

SONG Ya-Nan, XU Rong-Hua, WANG Qin-Ruo

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  115-120. 

Abstract ( 1062 )   PDF (1093KB) ( 427 )   Save

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Design train of thought and principles is brought out based on analysis on noise source and characteristics in rapier loom’s tension control. For low pass filter bring lag phase and increase time constant of generalized plant，the influence of filter on design controller is analysis based on definition of difficult control degree and controller design method on rapier loom’s tension is brought out. Results of matlab’s simulink simulation show effectiveness of analysis and design method on filter. That is used as a basis of design on actual rapier loom’s tension control filter and controller

Feasibility about application of spark detection & extinguishing system in textile industry

SHI Jian-Zhong, WANG Xiu-Qing

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  121-124. 

Abstract ( 1040 )   PDF (890KB) ( 488 )   Save

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Textile industry of fire and dust explosions have occurred, and great harm. The ignition source is one of the conditions lead to accidents. If sparks can be detected before the accident, the accident can be prevented. Spark detection & Extinguishing system can do. Then ,introduced the principle of spark detection & extinguishing system and the basic composition of spark detection & extinguishing system used on pipe, analyzed the spark source produced in textile industry, discussed where the spark detection & extinguishing system is installed. the biggest advantage of the spark detection & extinguishing system is spark extinguished immediately, without affecting the continued operation of the production, and it is a positive way used in the textile industry dust explosion. But for the complete elimination of fire and explosion hazards, for the protection of buildings and equipment other effective measures must be taken.

Rendering cracks in wax printing using Voronoi diagram

TANG Ying, FANG Kuan-Jun, SHEN Lei, FU Shao-Hai, ZHANG Lian-Bing

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  125-130. 

Abstract ( 1228 )   PDF (1284KB) ( 490 )   Save

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In this study, an algorithm based on Voronoi diagram is selected for simulating the wax crack patterns. Firstly, the positions of the Voronoi sites are determined randomly in digital wax printing pattern; then the standard Voronoi diagram is obtained. The Voronoi boundary need to be picked out of the wax region, and taking the intersection of the Voronoi boundary as the starting point. Perlin noise is introduced in the spread direction of the original Voronoi diagram and a new Voronoi boundary is generated. Finally, the real crack effects are achieved via adjusting the coefficients such as numbers and noise. The experimental results show that the proposed method can imitate authentic wax crack patterns with good consistency and network, which meets the characteristics of the real wax printing.

Empirical rsearch on job burnout of knowledge employees in textile and apparel industry

BAI Yu-Ling, LIU Peng-Peng

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  131-136. 

Abstract ( 1079 )   PDF (1710KB) ( 371 )   Save

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Nowadays, the issue on job burnout of occupation employees is rising greatly in china, and in correspondent to the situation, This paper carried an empirical research based on the investigation sample of knowledge employees from textile and apparel industry .The purpose of the paper is to discover the level of job burnout, so proper intervention strategies can be adopted by enterprises. The first process was to establish the dimensions of research variable on the base of interview and literature review, then data was collected through a questionnaire survey, and statistics analysis was used. Results indicated that the level of job burnout was not very high among knowledge employees from textile and apparel industry, but there were significantly different characteristics when considering the demographic variables of age, gender and education background etc. Practical strategies for enterprises were proposed accordingly.

Study on competitive advantage of clothing brands from standpoint of consumer values 

SUN Hong, GUO Jian-nan

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  137-142. 

Abstract ( 1276 )   PDF (1324KB) ( 539 )   Save

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The questionnaire studies based on consumption values of sportswear and brand choice has been showed as follows. Clothing consumption values are a multidimensional structure which is conposed of some value elements of different magnitude. Different values of consumer will affect their choice of brands. If value positioning of enterprise brands fits consumers value demand, it will possess a relative competitive advantage. The homogenization tendency is serious among different sportswear bands, and competitive advantages are fading. Internal needs of consumers driven by consumption values have not still been satisfied, thus there is a big potential market. These conclusions provide the bases for clothing enterprises to choose their appropriate brand positioning and enhance the brand competitive advantages.

Research status and prospect for cotton fiber maturity measurements

ZHANG Xian-Miao, WANG Rong-Wu, WU Xiong-Ying

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  143-150. 

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Cotton fiber maturity is very important for cotton-textile, such as raising efficiency of technique,assuring the quality of fiber and product. It is the main indicator of cotton grades assessment. The principle and research status of cotton fiber maturity measurements is introduced, and the virtue and drawback of those methods is analyzed in this paper. Through comparative analysis of those methods at accuracy and speed, this paper indicates that longitudinal measurement is effective way to measure maturity quickly, objectively and accurately. The important problems would be faced in the longitudinal measurement are also developed in this paper.

 Application of emotional event-related potentials in fashion design

LU Jia, CHEN Dong-sheng

JOURNAL OF TEXTILE RESEARCH. 2012, 33(2):  151-156. 

Abstract ( 1140 )   PDF (1576KB) ( 494 )   Save

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Based on analyzing and summarizing domestic and foreign literatures of emotion and emotional event-related potential research, including changes of event-related potential components by emotional stimulations and the research outcomes of event-related potentials in different emotional research areas. By expounding the necessity and applied ranges of event-related potential applied to fashion design, raising the theory of leading emotion and event-related potential technology into the field of fashion design. Provide new ideas and methods to quantitative analyze the relationship between designers and costumers. And providing scientific guidance for future trend and development of fashion design.