Table of Content

15 November 2012, Volume 33 Issue 11

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Structure and properties of photo-biodegradable polyethylene fibre

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  1-5. 

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In order to get the fiber of photo-biodegradability and certain mechanical strength, the photo-biodegradable polyethylene fiber was produced by melt spinning. The mechanical properties was characterized with fiber tensile tester, and it was found that the breakage strength of the photo-biodegradable polyethylene fiber is close to the regular polyethylene fiber which can be used as general fiber material.. The photodegradability and biodegradability of the the photo-biodegradable fiber were studied by laboratory UV aging degradation and soil burial biodegradation. The results showed that with the extention of ultraviolet light time, the decomposition rate of photo-biodegradable polyethylene fiber increases,much higher than low density polyethylene fiber. With the increase of biological degradation time, the degradation rates increases to the maximum 27.65%.

Preparation of porous hollow polyacrylonitrile ultrafine fibers by coaxial electrospinning

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  6-10. 

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To obtain a perfect porous hollow fiber, ployacrylonitrile(PAN)/polyvinyl pyrrolidone(PVP)／N, N-Dimethylformamide(DMF) mixture solution as sheath spinning solution, and PVP/DMF, polyoxyethylene (PEO)/DMF and PVP/ethanol (EtOH) as core spinning solution respectively, composite ultrafine fibers were prepared by co-axial electrospinning. The water-soluble polymers in the composite ultrafine fibers were removed by deionized water under the conditions of ultrasonic vibration. The obtained ultrafine fibers were characterized by field emission scanning electron microscope(FESEM). The SEM observation revealed that the morphology of ultrafine fibers was poor when PVP/DMF solution was used as the core layer; and that ultrafine fibers with porous surface structure could be produced when PEO/DMF solution was used as core layer; and that porous hollow PAN ultrafine fibers could be fabricated only when PVP/EtOH solution was used as core layer.

Melt spinning process of biodegradable PLA filaments

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  11-14. 

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In order to spin the high quality PLA filament, the melt spinning method was applied and the chip drying process was optimized. The effect of spinning parameters, including spinning temperature, spinning speed, stretching ratio and stretching temperature, on the qualities of PLA filament (viscosity average molecular weight,orientation and mechanical property) were also researched. The results indicate that: the PLA chip should be dried in two stages. First stage, the temperature should climb up to 60-65℃, for 3-4h, in order to pre-crystallize, second stage, increased drying temperature up to100℃ for 15h. At last, the chip moisture content was lower than 0.005%. The optimum spinning parameters were as follows: 195℃ spinning temperature, 1000m/min spinning speed, 3 stretching ratio and T1/T2/T3=72℃/80℃/82℃stretching temperature.

Preparation and sustained-release evalution of electrospun drug loaded polylactide/silk fibroin nanofibers

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  15-19. 

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Drug loaded composite nanofibers of PLA/SF were prepared via electrospinning by dissolving aspirin,polylactide (PLA) and silk fibroin (SF) in binary solvent of trifluoroacetic acid and dichloromethane at a volume ratio of 7/3.The films were characterized by scanning electron microscope (SEM) and infrared spectroscopy (IR),and the absorbency of drug in PBS solution was detected by UV-visible spectroscopy, then counting the velocity of drug release.It was found that the average diameter of the blended nanofibers become fine with the content of drug increasing,PLA and SF can be composited very well and releasing rate reaches the maximum when containing SF with 3% and increases with the aspirin content growing.

Influence of melamine cyanurate on flame retardancy of poly(ethylene terephthalate)

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  20-26. 

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PET-MCA composites (PET-MCA) and phosphorus-contanining poly(ethylene terephthalate) (CP-PET)-MCA composites (CP-PET-MCA ) were prepared by melamine cyanurate (MCA) and poly(ethylene terephthalate) (PET) and CP-PET. The thermal stability, flame retardancy and char forming characteristics of the product were investigated by TGA, LOI, UL-94, Cone Calorimeter, SEM and EDS, and the mechanism were discussed. The result suggested that the temperature of thermal decomposition of PET and CP-PET showed a slight decrease with the incorporation of MCA, and the mass of residual char and LOI increased. CP-PET reached V-0 rating standard from UL-94 test and more uniform char granules were acquired. The addition of MCA compounded with 2-carboxyethyl(phenylphosphinic) acid (CEPPA) imparted N-P synergism effect on the flame retardancy of PET.

Preparation and characterization of poly (methyl methacrylate)/alumina nanocomposites

Cai-Ning ZHANG

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  27-30. 

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KH-570 was applied to modify the surface capability of the Al2O3. The modified Al2O3 were dispersed in methyl methyl methacrylate. The in-situ polymerization was used to prepare the PMMA/Al2O3 composites, in which azodiisobutyronitrile was used as initiator. FTIR、UV、DSC and TG were applied to characterized the prepared composites. The UV experimental results demonstrated that anti ultraviolet capability of the composites was obtained owing to the adding of Al2O3. With the increasing of the amount of Al2O3, the anti ultraviolet capability of the composites increased gradually. The experimental results of Tg and the solubility of PMMA/Al2O3 composites revealed that the heat stability and solubility of the composites increased with the increasing of the amount of Al2O3. Meanwhile, the molecular weight of PMMA in the composites increased with the increasing of the amount of Al2O3.

Preparation of modified PVDF hollow fiber separating membrane

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  31-36. 

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In this thesis, PVDF hollow fibers blood separate membrane are fabricated by using dry-wet phase inversion method. The hydrophilic of membrane materials is improved by the introduction of polyvinyl alcohol (PVA) with glutaraldehyde cross-linking reaction in the casting solution. The concentration of PVDF, PEG and other effects can affect membrane performance. The results indicated that the modifications of PVDF blood separate membrane significantly increase hydrophilic and water flux, decrease protein adsorption and have better chemical stability. The contact angle decreased from 70.2。 to 54.5。, the amount of protein adsorption decreased from 92mg/m2 to 27mg/m2 while Pure water flux from 85.4L / (h . m2) -1 to 189.4 L / (h . m2) -1. The tensile and burst pressure of membrane increased while the water flux and pore size decreased with the concentration of PVDF. The mechanical performance of membrane material has little changed while the water flux increased with the concentration of PEG.

Effect of annealing temperature on the conductive and optical properties of SnO₂ thin film coated on glass fibers

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  37-41. 

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For coating SnO2 thin film on the surface of glass fibers to improve the conductivity of glass fibers with good transmittance, the SnO2 sol was prepared by sol-gel method, and was coated on glass fibers by dipping method. The SnO2 thin film was formed onto the surface of glass fibers. The effects of the annealing temperature on the structure of the thin film, the conductive and optical properties of the glass fibers were investigated. X-Ray Diffraction(XRD), Scanning Electron Microscope(SEM)，Atomic Force Microscope(AFM) , Four-Probe Method and Ultraviolet Visible Spectrophotometer were utilized to characterize the structure and morphology of the thin film , the resistivity of glass fibers and the optical property of the thin film. The sol was very stable, and the optimized annealing temperature with 550℃was chosen, the mean particle size of the SnO2 thin film was 17.18nm, the conductivity of glass fibers was 5×10-5Ω·m, at the same time, the transmittance of the thin film was about 88%.

Degradation behavior of cellulose in imidazolium-based ionic liquids

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  42-46. 

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In order to study the degradation behavior of cellulose in imidazolium-based ionic liquids, the influence of temperature, time and agitation speed to degradation behavior of cellulose was studied by orthogonal experiment, and the degradation influence of cellulose on four kinds of different ionic liquids was compared and discussed. The results show that, the optimum conditions for cellulose in 1-ethyl-3-methylimidazolium acetate ([EMIM]Ac) were: temperature 80℃, dissolution time 1hour and agitation speed 230r/min. Dissolution temperature has a more influence on the cellulose degradation, the next is dissolution time and agitation speed. At the same conditions, [EMIM]Ac has a least influence on cellulose degradation, while 1-ally-3-methylimidazolium chloride ([AMIM]Cl) on the other. Propyl gallate could reduce the degradation of cellulose obviously in ionic liquid solutions. It is also found that the color of the solution turn out amaranth when adding propyl gallate into acetate imidazolium-based ionic liquids [EMIM]Ac and 1-butyl-3-methylimidazolium acetate ([BMIM]Ac), and disappear after dissolution of cellulose.

Dynamic analysis and mechanistic study of drawing process of polyester taffeta

Chen-Yang SHI PAN Zhi-Juan

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  47-52. 

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In this paper, tensile properties of polyester taffeta in 7 different specifications have been tested, in directions of warp and weft respectively. At the same time, the entire stretch processes have been recorded by high-speed camera, the digital information of which is analyzed. The results show that: the initial phase of the stretch belongs to mechanical high modulus area, longitudinal elongation becomes slow, but the width is reduced; the intermediate stage of the stretch is mechanical low modulus area, longitudinal elongation speed up, the speed of width decrease slow down; in the tail phase, yarn extend along the direction of the force, the fibers slip, modulus increase, changes of the specimen width appear more smoothly. The range ability of residual rate of width in the warp direction at the first feature points is larger than the weft direction. By the cover degree increases, the change rate of width appears the decreasing trend at the first and second stage.

Factors affecting measurement of electrical resistance of loose wool fiber assembly by one -side parallel electrodes

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  53-56. 

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Fiber compression device and a serial of one-side electrodes were used to study the factors affecting the electrodes resistance testing, and it’s hopeful to improve wool fiber moisture tester’s design. Experiment results show that the measuring depth is limited and the falling of measuring resistance is finite with the increasing of thickness of random wool fiber assembly. The resistance decreases with the decrease of the distance between electrodes, with the increasing of separation distance of one-side electrodes the variation of resistance increase. The resistance decreases with the increase of electrode area, and with the increase of area, variation of resistance slows down. The resistance decreases with the increase of wool fiber volume density. The measuring depth increases with the increase of applied voltage. The suitable voltage of one-side electrodes is bigger but no more than wool fiber’s local breakdown voltage.

Fabric image classification segmentation based on wavelet transform coefficient

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  57-60. 

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First discussed the features of segmentation algorithm that considered the spatial information. It has been found that the better segmentation result was achieved in coarse fabric than small texture one. If the small texture fabric has many details in the image, the segmentation algorithm that considered only color space information could be selected. Based on the above discussion, we should classify the fabric before segmentation. Experiments proved that the texture information mainly existed in the 2 and 3 detail sub image. Based on the decomposition coefficient energy, can distinguish the classification of the fabric from the texture view. And the coarse level can be detected too by the energy ratio of 2 and 3 detail images.

Comprehensive evaluation of appearance quality of fabric based on image analysis

LIU Zhe

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  61-65. 

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Aiming at the result of subjective evaluation of fabric appearance quality is not exact enough at present, this paper proposes an analysis method based on image gray. This method can use precise digital to describe and evaluate the appearance quality of fabric. The appearance quality of fabric is described by constructing five gray features that are gray range, texture evenness, energy range, contrast range and roughness range. An evaluation method based on magnitude adjustment and variable weight that can comprehensively calculate five features and form evaluating index is given. Experiments and analysis show that this method can reasonably describe and evaluate appearance quality of fabric and can provide a new research thought for objectification and standardization evaluation of fabric appearance quality.

Synthesis of nano-SiO2/PSt via miniemulsion polymerization and modification of polyacrylate sizing with it

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  66-71. 

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Nano-SiO2 particles were prepared via Sol-Gel method and then they were coupled with MPS. Miniemulsion polymerization, using styrene as monomer, CTAB as emulsifier and cyclohexane as costabilizer, was processed to prepare nano-SiO2/PSt microspheres. A series of nano-SiO2/PSt miniemulsion, with different stability and particle size, were prepared with different contents of emulsifier. Nano-SiO2 and nano-SiO2/PSt were characterized by means of FTIR, DLS and TEM. The results showed that: The average particle size of MPS-modified Nano-SiO2 was 38.7 nm; when the content of CTAB was 0.035 g, the prepared miniemulsion, with an average particle size of 148.8 nm, had a good stability and a narrow particle size distribution. Then the prepared miniemulsion was charged into the polyacrylate sizing agent SX-5 to form the nano-modified SX-5. The viscosities of SX-5 and nano-modified SX-5 were determined. Finally, T/C blended single yarns were sized by these two sizing agents, and breaking strength, breaking elongation and abrasion resistance of sized yarns were examined. The results showed that: There was tiny difference of viscosity between SX-5 and nano-modified SX-5, but the sizing rate of nano-modified SX-5 improved 8.9 %; Sizing properties of T/C yarns sized by nano-modified SX-5 improved in comparison with SX-5, since breaking strength, breaking elongation and abrasion resistance improved 4.7 %, - 6.5 % and 7.0 % respectively.

Synthesis of metal complex and its application in low temperature bleaching

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  72-76. 

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Binuclear manganese complex[（Me3TACN）2Mn2（μ-O）（μ-CH3CO2）] [PF6]2.1H2O（MnAcL） and iron complex[（Me3TACN）2Fe2（μ-O）（μ-CH3CO2） 2] [PF6]2.1H2O（FeAcL） of 1,4,7-trimethyl-1,4,7-triazacyclononane containing carboxylato-bridge were synthesized and characterized by FTIR，elemental analysis (EA) and TGA. Low temperature bleaching of cotton knitted fabric with MnAcL and FeAcL as catalyst for H2O2 and effect of key bleaching variables on bleaching performance were investigated in detail. The conditions were optimized as follows: 30% H2O2 10 g/L，complex MnAcL 10 μmol/L （FeAcL 15 μmol/L）， penetrating agent 1 g/L， stabilizer DTA 1 g/L， pH=10；liquor to goods ratio of 20:1，and the process was carried out at 70 ℃ for 60 min. The fabric bleached with MnAcL and FeAcL achieves the whiteness index to 82.3% and 65.7%，and the bursting strength retention is 95.5% and 96.9%，respectively. The whiteness index and wettability of the fabric bleached with MnAcL at low temperature were comparable with those of fabric bleached with the conventional high temperature technique. The bursting strength retention is much better for the fabric bleached at low temperature.

Preparation of nano-nickel colloid and its application to activation of electroless plating of fabrics

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  77-80. 

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Under acidic conditions，the nano-nickel colloid was prepared by reduced nickel sulfate with sodium hypophosphite in liquid phase with polyvinylpyrrolidone (PVP) as stabilizer. Then the nano-nickel colloid was used in the activation process of the fabric electroless plating copper. The phase structure, morphology and distribution were characterized by X-ray diffraction (XRD)，scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The test results showed that the nano-nickel colloid has pure composition and uniform particle size distribution，the it is effective for the activation of the fabric electroless plating copper used formaldehyde as a reducing agent.

Fixation of silver ions onto silk sericin for silk weighting

wei-ming HANG

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  81-85. 

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In order to keep the silk weight and increase antibacterial capacity of silk fiber, the silk fabrics were treated using the silver nitrate solution, and the silver ions were adsorbed to the silk fiber by coordination bonds, while the sericin dissolution decreased simultaneously. This paper discussed the usage of different reagents and the experimental conditions for the influences of sericin dissolution, such as silver nitrate, nitric acid, acetic acid, ammonia nitrate, fixation bath ratio, fixation time, preimpregnation time etc. As shown from the experimental results, the adsorption of silver ions on silk fiber surface can decrease the silk dissolution and increased the silk fiber weight indirectly. In the fixation solution, the usage of nitric acid especially ammonia nitrate, comparing to acetic acid, can decrease the sericin dissolution significantly. Furthermore, the preimpregnation time and fixing time should not be long, and the fixation bath ratio should be small.

Preparation of ultrafine disperse dye and influence factors on transfer printing effect

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  86-90. 

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The influences of dispersant structure, dosage and dispersing conditions on dispersing effect of disperse red 60 were studied. Influence factors on transfer printing effect were analysed. The result indicated that the PSMA applied to disperse red 60. The ultrafine disperse dye prepared with PSMA, 100 percent by weight of disperse dye, by grinding for 4 hours had 157nm diameter. Its centrifugal stability was 96.3% and particle size change rate under 60℃ for 24h was 3.4%. The transfer printing fabric with smaller particles of disperse dye had uniformer color and higher K/S value. The optimum transfer printing conditions were transfer printing at 210℃ for 40s when the viscosity of printing paste was 60 mPa·s.

Determination of 17 phenols in textiles by gas chromatography-mass spectrometry

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  91-96. 

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To solve the problem of simultaneous determination of multiple phenols in textiles, a method for the determination of 17 phenols in textiles was developed by gas chromatography-mass spectrometry (GC-MS). The sample was extracted with potassium hydroxide (2 mol/L) by ultrasonic; the extract was reacted with acetic anhydride. The derivative was extracted by hexane and determined by GC-MS. Data were acquired in the selected ion monitoring (SIM) mode and quantified by internal standard method. Good linearity was obtained at the mass concentration range of 0.05~0.5 μg/mL with a correlation coefficient (r2) above 0.9990. The limits of quantification (LOQs) were 0.05 mg/kg, the average recoveries were in the range of 89.3%~117.6 % for 17 phenols with the relative standard deviations below 9.3 %. This method is accurate and sensitive, and it is suitable for the analysis of 17 phenols in textiles.

Influence of knitting fabrics propreties on edge sewing of knitted apparel

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  97-101. 

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Abstract: The paper deals with the influence of performance of knitting fabrics on garment’s skived edge process. The experiment chooses 10 kinds of knitting fabrics and divedes the samples into two groups according to the elongation and the difference of the thickness by the clustering method, then chooses the different seam kinds, stich density, sewing treads and press stand to sew them and measure respectively the changes of the size, tensility and intensity of the skived edge. The experimental results are analysed by the SPSS software and sums up the law of fabric performance’s influence on skived edge process and improve the methods of sewing quality of knitting garment skived edge through the mean comparision, T test and partial correlation analysis. The study shows that the better the tensile properities of the fabric is, the larger the size changes of knitting garment’sskived edge being sewed is; the thicker of the fabrics is, the more remarkable change of the elongation occurs; the stich density is directly proportional to skived edge’s intensity and elongation. Study can be used for knitwear design and production and processing side of the mouth of the forecasting process of matching.

Geomagic-based characteristic extraction of air gap under clothing

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  102-106. 

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Air gaps entrapped between a protective garment and the human body are known as a major factor affecting the garment’s thermal protective performance. According to the request of the air gap determination of protective garments for studying the garment thermal performance, a 3D human body scanner was used to get the data cloud of nude and dressed flash fire manikin, the reversing engineering software Geomagic Qualify was utilized for modeling and getting the determination of air gap’s distribution and quantification of air gap size at each sensor location of different garments by 3D compare.

Relationship between dress bust ease, wearing way and thickness of fabric

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  107-111. 

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Abstract Dress bust ease is key factor that effects clothing fit . This article analyzed the influence factors and designing method of clothing‘s ease, experimental approach used different thickness underwear, sweater, coat, grouped different wearing level and wearing way by matching each other, measured the same part bust data and thickness of material. Through the experimental data, using stepwise regression analysis method to study the quantity relationship between the chest ease and space and the thickness of coat and underwear under different designing conditions, established mathematical model between clothing bust variation by wearing sweater underwear and thickness of sweater, thickness of underwear. Concluded the linear formula between the bust ease and clothing bust variation by wearing sweater underwear under different fit.

Numerical simulation and analysis of three dimensional flow field of modified four-roller compact spinning system based on Fluent

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  112-120. 

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Motion planning and analysis of manipulator system for single edge stitching of composites

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  117-120. 

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To be able to construct the expected suture stitch during the process of unilateral suture, this article focuses on design and planning the relationships among the action on each part of the mechanism. By analyzing the general relationgship between the rotation of mechanism and the displacement of the needle bar, the expression of phase difference about crank angle can be determined. While the article also uses simulation software to analyse the displacement of the mechanism.Acording to the location of the each part of the mechanism at some special moments in the simulation result, the relationships among the action on each part of the mechanism can be reflected. Simulation results demonstrate the action planing which are reasonable and efficient.，and afford a theoretical basis for debugging and construct the expected suture stitch during the process.

Dynamic analysis od shogging motion mechanism of guide bar on warp knitting machine

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  121-126. 

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In order to research stability and dynamic response of the guide bar,improve the inherent nature and mechanical properties of the guide bar shogging motion ,this research takes simplified analysis of the guide bar shog organization and establishes dynamic model, the dynamic differential equation is given according to the theory of Newton's laws of motion and do it by Laplace transform method, corresponding simulation model was developed based on the Matlab/Simulink analysis module. By taking actual measurement in points on the guide bar which adopting the test system for vibration constituted by the analytical system of acoustics and vibration, acceleration transducer and computer. Simulation was executed using the measured external incentives data of the guide bar, the simulation results of the vibration acceleration response curve are identified with the testing results，which verify the correctness of the model．

Real-time dynamic measurement of raw silk fineness

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  127-131. 

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To conform the academic development trend and meet measurement requirements of raw silk fineness at silk nest site. There are some problems in existing raw silk (fiber) fineness measuring instruments and detection methods. A sort of design scheme contain contactless, real-time and dynamic raw silk diameter measurement based on linear CCD array. The goal is to develop a high precision, high accuracy, non-contact, motion detection, ease of computer processing, easy and automatic control equipment connected to the fineness of raw silk photoelectric measuring instrument. This article presents theoretical design of the laser light source, optical system design, CCD image sensor imaging mode selection, the video signal processing experiment and method.secondly the paper proposes the study on how to improve the measuring accuracy of the measuring system from the theory and the various modules of the design parameters. It solve effection in instability of the light illumination and raw silk transparency of raw silk, to avoid CCD saturation due to bright background and the distortion caused by raw silk jitter.Finally, the design is proved in feasibility and practicality through experimental results.

Apparel e-tailing order model construction based on Newsboy model and theory of often-buying

Jianmei CAI

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  132-135. 

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Abstract Based on the market survey of e-retailers and e-consumers, find the key factors and combined with apparel Newsboy model and ordering theories, construct an optimal model of apparel ordering, the model parameters set the utility function, and the numerical solution of case presentation is given to model construction and application to help e-retailers for ordering, selling, advertising and Inventory management decisions.

Optimal ordering decisions for garment supply chain with demand information updating

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  136-140. 

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Under the competitive market of fashion, with the uncertainty of market demand, there is a very great challenge of ordering the best selling product, in order to make the benefits maximization. With information updating, this paper mainly study the best way of ordering for fashion retailers within a life-cycles. After comparing the strategy of one-time-ordering with three-time-ordering, it shows that three-time-ordering is more productive and the accuracy of the market demand forecast made by retailers before the start of sales period have a very big influence on fashion supply chain benefit.

 Knowledge representation of product lifecycle management demand flow chain in garmen sector

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  141-145. 

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In order to meet customer demand on costime, The knowledge representation on coordination facing product lifecycle management demand flow chain based on costume enterprise is put forword. The forming of cooperating knowledge is analysed in PLM demand flow chain,and the cooperation knowledge is expressed in the whole demand flow chain through knowledge semantic. Finally, the prototype system of Cooperation Knowledge Representation System facing Requirement Flow Chain is developed. The system architecture, modeling technology and peration process is studied.The result objectively reveals that the study theory realises the knowledge management on cooperation mechanisms in PLM demand flow chain effectively,which improves the competence of costume enterprise.

Research progress on treatment of dye wastewater by aquatic plants

JOURNAL OF TEXTILE RESEARCH. 2012, 33(11):  146-152. 

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Using aquatic plants to restore contaminated water is an efficient, simple, low consumed wastewater treatment technology. The research and application status of the treatments on dyeing wastewater by the lower and higher aquatic plants at home and abroad in recent years are reviewed in this paper and the development prospects are also presented.