Table of Content

15 July 2014, Volume 35 Issue 7

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Physical and chemical properties of surface modification wool by oxidation reduction method

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  1-0. 

Abstract ( 661 )   PDF (1836KB) ( 674 )   Save

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The scales of wool fabric were stripped through potassium permanganate oxidation method and thiourea dioxide reduction method. The physical and chemical properties of wool fabrics before and after treating with potassium permanganate were characterized by scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR/ATR). SEM results showed that the surface of wool fabrics after treating with potassium permanganate is overall relatively smooth and the ladder-shaped structure of the fabric edge are not obvious. XPS and FTIR-ATR results showed that the methods mentioned above can fracture the disulfide-bond on the surface of wool fabrics and modification or removal the lipid substances on the surface. Consequently, the wettability of wool fabrics was effectively promoted after treating with potassium permanganate. In addition, the strength retention, whiteness, fiber thinning of treated wool fabrics was obtained good results. But the char length and limiting oxygen index were both dropped after treating with potassium permanganate, and the thermal stability got worse.

Graft copolymerization dinetics of silk and its grafting structure

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  8-0. 

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Two kinds of RAFT (Reversible addition-fragmentation chain transfer) agents were introduced to mediate graft copolymerizations of silk fibers with DMAAm (N, N'-dimethyl acrylamide). New oligomer radicals generated from the chain transfer reactions between RAFT agents and propagation radicals. The RAFT-ST3 released an oligomer radical of PAA-PST* (polyacrylic acid-b-polystyrene), which accelerated graft copolymerization and caused increased silk grafting yield and monomer grafting efficiency. However, the kinetic was little influenced by the oligomer radical originated from RAFT-AA30 agent and had a chain structure of PST-PAA*. FT-IR (Fourier transform infrared spectroscopy) spectra showed that, RAFT agents and their derivatives did not covalently bond with silk fibers. The grafting yield was still contributed by the grafted PDMAAm chains. SEM (scanning electron microscope) analysis showed that, compared with conventional silk graft copolymerization (without RAFT agent), RAFT agents mediated reaction produced silk fibers with grafted PDMAAm chains distributing much more evenly on the outer surface.

Preparation and characterization of porous SnO2 nanofibers

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  13-0. 

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Tin dioxide with doped nanofibers was prepared by electrospinning a mixture solution. Polyvingl pyrrolidone acted as a polymer intermediate，stannic chloride pentahydrate transformed to tin dioxide, silicon dioxide is a doping material ,respectively. The porous tin dioxide nanofibers were obtained using hydrofluoric acid etched, which depend on the different chemical properties between tin dioxide and silicon dioxide. The morphology of tin dioxide nanofibers was characterized by scanning electron microscope and transmission electron microscopy. X-ray diffractometer and energy dispersive X-ray spectrometer were measured to assess the structure of nanofibers. Especially, the specific surface area of tin dioxide nanofibers was detected. The study revealed that the diameters of tin dioxide nanofibers were increased by adding more silicon dioxide nanoparticles, and the surface roughness of nanofibers was increased as well. After hydrofluoric acid treated, the swelling phenomenon was happened on the nanofibers, but silicon dioxide nanoparticles were successful etched and the specific surface area of tin dioxide nanofibers was increased.

Effect of alkali solution on extraction efficiency and composition of natural brown cotton pigment

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  18-0. 

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Many scholars used different methods for brown cotton pigment extraction, which results in significant difference on qualitative. According to the alkali-soluble ability of polyphenols, with ultrasound-assisted extraction technology, we use different pH alkaline solution for natural brown pigment extraction. The results indicated that the alkali solution has better extractability, which PH value is 14.1, can extract most of the pigments from natural brown cotton fiber. The UV spectrum of pigments solution changed which extracted by deionized water repatriation neutral after alkali treatment. The HPLC separation results also showed that some substances changed which extracted by alkaline solutions. Natural brown cotton pigments have multi-component structure and complexity. Alkali solution cannot be used for the pigment extraction from natural brown cotton, which purpose is structural identification.

Hydrolysis process optimization of feather＆down powder and its hydrolysate film forming property

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  23-0. 

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In order to study the hydrolysis of waste feather ＆down and the film forming property of the hydrolysis products, the waste feather ＆down which have been mechanical grinding into fine powder firstly, was hydrolyzed into polypeptide powder by reduction - caustic soda two-step hydrolysis technique. The study focused on the impact of factors such as reductant quantity, the temperature of hydrolysis and auxiliary on the productivity of polypeptide powder. Besides, film forming property of the products was also studied. The powder, polypeptide powder, and film forming were characterized by FTIR, XRD, DTG and SEM. The findings showed that the reduction - caustic soda two-step hydrolysis technique could improve the productivity of polypeptide powder. On the basis of the theory of one factor optimization, the condition of the reduction-caustic soda two-step hydrolysis technique is that the mercaptoacetic acid concentration is 0.2mol/L,reduction temperature is 80℃, urea concentration is 14g/L, LAS concentration is 2g/L in the reduction process. When the polypeptide powder was dissolved into formic acid, mechanical properties of film forming is good. Besides, SEM showed that reducing process corroded the powder obviously. According to the FTIR spectra the reduction process could broke the disulfide bond of feather ＆down powder. Meanwhile the heat endurance of hydrolysis product slightly decreased and the crystalline state also had a change after hydrolysis.

Structure and properties of PA6/PEG phase change and temperature regulating nanofibers

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  30-0. 

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Aim of this paper is to prepare PA6/PEG phase change nanofiber was by means of adding phase change material PEG into PA6 via electrospinning. Structure and properties of the PA6/PEG phase change nanofiber were characterized by means of SEM, FTIR, thermal analyser, and electronic strength tester. The results show that the PEG can improve the viscosity of the electrospinning. The diameter of the nanofiber increases with the increase of the blended ratio of the PEG. There are hydrogen bonds between the PA6 and PEG. The melting temperature and enthalpy of the phase change nanofiber increase with the increase of the blended ratio of the PEG. PA6/PEG nanofibers have excellent thermal-regulating properties. Breaking strength of the phase change nanofiber decreases with the increase of the blended ratio of the PEG. Conclusion of this research is that the PA6/PEG nanofiber is an excellent thermal-regulating material.

Development of stainless steel fiber/cotton composite yarn and its performances

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  36-0. 

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In this paper, a kind of novel composite yarn made of stainless steel filaments, stainless steel short fiber and cotton was introduced. Composite yarns were developed by a novel filament/short fiber composite spinning technology. Structures, hairiness index, tensile properties and conductive properties of yarns with different stainless steel fiber contents were tested. Electromagnetic shielding effectiveness of fabrics made of these composite yarns were also discussed. Results showed that the composite yarns exhibited good performances, and stainless steel fiber contents had remarkable influences on these performances. Percentage of electromagnetic shielding of fabric reached up to 90%~99.9% which meets requirement of daily life.

Mechanical properties and hand style comparison of two kinds of elastic fabrics

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  42-0. 

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Abstract: In this paper, we want to know the difference of the hand and mechanical property of the fabrics that contain PTT(Polytrimethylene terephthalate)/PET(Polyethlene terephthalate) bi-component fiber and PU. The KES-F system is used to test the mechanical parameters of 4 control groups and then calculate the hand by Equation KN 301-S. It is found that this two kind fabrics have similar hand and mechanical property. However, the fabrics containing PTT/PET bi-component composite fiber have lower bending rigidity, higher bending and shearing hysteresis which lead to soft feeling and stable Shape.

Performance of blended fabrics with coffee carbon fiber

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  48-0. 

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The basic performances of coffee carbon fibers were tested, such as surface morphology, strong stretching property and moisture regain. Coffee carbon fiber, cotton, viscose and modal fiber were selected as the materials and 8 fabrics in two series were woven according to different blending proportions. Fabric wearability was tested and analyzed. The results showed that many nanoscale coffee carbon particles are adhered on the lengthways surface of coffee carbon fibers, and the transverse sections of fibers have obvious cavity structure; the breaking strength, elongation at break and initial modulus of coffee carbon fiber are lower than ordinary polyester fibers, and the moisture regain is increased; the fabrics with 35% coffee carbon fiber and cotton, which the warmth retention property is better than the fabrics with 35% coffee carbon fiber and modal or viscose; the fabrics with 35% coffee carbon fiber and viscose or modal, which the wet comfort and anti-pilling property and drapability are better than the fabrics with 35% coffee carbon fiber and cotton; the fabrics with 35% coffee carbon fiber and modal or cotton, which the crease recovery ability is better than the fabrics with 35% coffee carbon fiber and viscose; the fabrics with 35% coffee carbon fiber and viscose, which the air permeability is better than the fabrics with 35% coffee carbon fiber and modal or cotton.

Photoaging properties of Vectran fabric

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  53-0. 

Abstract ( 498 )   PDF (1315KB) ( 564 )   Save

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The photolysis of Vectran fabric exposed to Xenon-Arc Lamp was investigated. The breaking strength and the chemical structure were studied. The aging mechanism of Vectran fiber was discussed. The result shows the Xenon-Arc Lamp leads dramatic decrease of tensile strength in Vectran fabric. It can be seen that 1725cm-1 and 1110cm-1 are weaken from ATR-FTIR spectra of Vectran fiber, which attributed to C=O and C―O respectively, this indicates the main damage of Vectran fiber is chain scission of Vectran molecule. The ESEM micrographs shows that low molecule compounds are separated out from the inner side of Vectran fiber, which results in serious coarsing on the fiber’s surface. The DSC shows the photoaging seriously destroyed the crystalline structure inside Vectran fiber.

Weave design of two-sided velvet based on cut double layered and weft pulling

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  57-0. 

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Based on the single-shuttle loom, N-type and W-type binding weaves and two-sided velvet weave by lead-in auxiliary weft picks were designed innovatively, through the analysis of weave construction design method of conventional raised fabric. Double layered ground weave was designed, auxiliary weft picks were designed simultaneously which outside the face and back ground fabrics, not interweaved with ground warp. Pile ends link the face and back fabrics and interweave with wefts of single layer. One side of above or below pile ends coats on the auxiliary weft outside, the other side in the auxiliary weft, so that forming two-sided warp pile double layered weave. Adopting the warp pile cutting technology forms inner single-sided velvet. Auxiliary weft picks are pulled out of fabric by using weft sorting machine, pile ends which coat on the outside of auxiliary weft are pulled out from the outer layer, to form the outer layer pile. Two-sided velvet fabrics developed using this design possess full piles, soft handle, achieve the effect of wash and machine wash without pilling, provide a valuable method for the enterprise product development.

Woven fabric defect detection using singular value decomposition

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  61-0. 

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Aiming at texture adaptability and real time issue challenging for most existing algorithms, a method for woven fabric defect detection using singular value decomposition (SVD) is proposed. Firstly, the gray values of the normal image are projected along the horizontal and vertical directions, and the resulting two sequences are combined into a joint sequence. Secondly, the matrix of the joint sequence is solved by SVD, extracting basis vectors. Finally the extracted basis vectors are used to reconstruct testing samples and its reconstruction error can be used to discriminate defects from normal texture. The effect of the number of vectors and patch size is also investigated. After 2888 experimental samples ,results show that False detection rate of less than 10% and the detection rate of more than 90%. And the proposed method outperforms AR method in detection accuracy and real time.

Forming and performance of PP spun-bonded/needling formwork liner

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  67-0. 

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Spun-bonded process was used on the Polypropylene needled felt’s surface. Obtaining certain aperture and permeability properties of the controlled permeability formwork liner after heat-seal lamination treatment. The best technology to make spun-bonded/needling controlled permeability formwork liner was acquired through the orthogonal experiment, then the effect of the hot-press temperature and the weight of spun-bonded on the relevant properties of formwork liner were discussed. The results showed that the optimal hydraulic conductivity was obtained when the hot-pressing temperature was 171℃, hot pressing time was 4 s, hot pressing pressure was 1.5 MPa. Under the same hot pressing time and pressure, the fiber density of the formwork liner and the performance of the surface condensation changed along with the hot-pressing temperature and affected the effect of the end use.

Effect of washing temperature on smoothness appearance of woven fabric during domestic tumble laundering

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  74-0. 

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Abstract：The effect of water and temperature on smoothness appearance of woven is very significant during domestic tumble laundering. Thus the setting of temperature is very important for washing parameter optimization. This paper selected five kinds of white and ordinary finishing woven fabrics to wash in different temperature which are 20℃, 30℃, 45℃, 60℃, 75℃ respectively, and then measured smoothness appearance, shear stiffness and bending stiffness. It indicates that the smoothness appearance, shear stiffness and bending stiffness decease with the increase of washing temperature. The reducing scope of pure cotton fabric in smoothness appearance is 1.6 degree; the pure polyester fabric is 1.6 degree. So the effect of washing temperature on polyester is more significant comparing with cotton fabrics. The results provide basis for washing temperature setting of woven fabrics domestic tumble laundering.

Effect of electron beam irradiation on dyeability of polyester fabrics

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  79-0. 

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Polyester fabric was treated by electron beam irradiation with different dose, the crystallization and surface morphology has been studied. K/S value, disperse dye uptake as well as rubbing fastness of the fabric before and after treatment were researched。Results show that, polyester irradiated with 100kGy will cause the crystallization degree rise, decrease dyeing rate, increased dyeing K/S value; radiated with 200kGy will decrease the crystallization degree, caused dyeing rate increased, dyeing K/S value decreased; radiated with 400kGy could the etching the surface of polyester, caused the dyeing K/S value increased.

Microwave-assisted in-situ synthesis and application of nano zinc phosphate in UV-resistance finishing of cotton fabric

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  83-0. 

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UV-resistance cotton fabric was prepared by microwave-assisted in situ synthesis of zinc phosphate using cheap Zn(NO3)2 and NaH2PO4. The source of zinc and phosphate and drying temperature were first discussed. The structure of Zn3(PO4)2 was characterized by XRD. The results showed that the drying temperature only changed the number of crystal water instead of the structure of Zn3(PO4)2. The effect of concentration of Zn(NO3)2 and NaH2PO4, microwave heating temperature and time, curing temperature and time on the UV-resistance properties and whiteness value of cotton fabric was investigated. It showed that the UV-resistance capabilities increased with the increase of the content of zinc phosphate. The UPF value also increased with the increase of the curing temperature and time. The surface morphology of treated cotton fiber was investigated by SEM.

Microwave-assisted low temperature in-situ synthesis and coating of Tungsten-doped TiO2 onto cotton fabric and photocatalytic peerformance of coated fabric

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  88-0. 

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Tungsten-doped TiO2 coated cotton fabric was successfully in prepared with (NH4)2TiF6, H3BO3 and Na2WO4 (or (NH4)2WO4) as raw materials by microwave-assisted method. The influence of the molar ratio of (NH4)2TiF6 and H3BO3, microwave heating temperature and tungsten doping ratio on the crystal form of TiO2 were studied. The result shows that the ratio of (NH4)2TiF6 and H3BO3, microwave heating temperature, tungsten doping ratio have little influence on the crystal form of TiO2. The effects of the concentration of the precursor, tungsten doping ratio, microwave reaction time and temperature on the photocatalytic performance of coated fabric were also investigated. The best processing condition was the doping ratio of 5% tungsten, 0.05mol/L (NH4)2TiF6 and microwave heating at 95°C for 45min.

Determination of aromatic amines in terylene by ASE coupled with UPLC-MS/MS

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  94-0. 

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A novel method has been developed for the rapid extraction and determination of 22 aromatic amines derived from banned azo colorants in terylene by accelerated solvent extraction (ASE) with acetone coupled with ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). The extract was dried by rotavapor, then through REDOX cracking reaction, and then using ethyl acetate to extract aromatic amines from the reaction liquid. The extract was blowed with N2 to nearly dry, redissolved in the solvent of methanol and water（1∶9，v∶v）.The chromatographic analysis was performed on an acquity UPLC BEH C18 column (100 mm × 2.1 mm，1.7 μm ) by a gradient elution employing of methanol and 0.05% formic acid as a mobile phase. The analytes were detected by electrospray ionization (ESI) tandem mass spectrometry with multiple reaction monitoring (MRM) in positive ion mode. Good linearity (r ＞ 0.99) was observed between 0.01 and 0.2 μg/mL for all compounds. The recoveries and relative standard deviations (RSDs) were checked by spiking untreated samples with the 22 aromatic amines at three levels: 15, 20 and 30 mg /kg. The average recoveries of the 22 aromatic amines were from 33.28 ± 1.83 to 107.14 ± 1.10％. The precision values expressed as RSD were from 0.38 to 10.9％ (n = 6). The limits of detection were from 0.96 to 17 μg/kg, and the limits of quantification were 3.2 to 56.1 μg/kg for the analytes. The results showed that the method can be considered a fast and easy alternative technique with great ruggedness, high degree of automation and good suitability for screening and detecting 22 aromatic amines derived from banned azo colorants in terylene.

Application of cationic starch-bentonite composite to adsorb Reactive Red X-3B dye

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  101-0. 

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A novel compound flocculant was prepared using one-step process with the natural bentonite and cationic starch adsorbed for each other, in order to increase the color removal efficiency of bentonite and cationic starch, respectively. The mixture of cationic starch and bentonite had a large specific surface area and loose structure, which increased the effect of adsorption for dye. An indicator of the percentage of color removal was used to determined the optimal application conditions of cationic starch –bentonite compound through experiments: the dosage of adsorbent was 1.25g.L-1 with a mass ratio of 1:1, the pH of dyeing wastewater was 7, without additional sodium chloride, and its color removal rate from wastewater of reactive red X- 3B was more than 90%. On this basis, the adsorption isothermal line of the cationic starch-bentonite compound was set, which belonged to L-model, and the adsorbent’s adsorption of the reactive red X- 3B is coordinated surface adsorption.

Shape analysis of bust slice using Elliptic Fourier

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  107-0. 

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In this paper, we applied an Elliptic Fourier analysis to bust slice of human body. First, the Elliptic Fourier description of closed planar contour were introduced, as well as the normalization of position, scale and orientation of the contour; Then bust slices of 459 females and 107 males were extracted from 3D scan data and fitted using Elliptic Fourier. The fitting errors with different maximum harmonic number were also analyzed. A new method was proposed to build symmetric bust slice, and the average shapes of bust slice under different bust girth were calculated. By applying principal component analysis to Elliptic Fourier descriptors of bust slice, the main modes of bust slice variation were discussed in detail. Finally, a BP neural network was built to recognize the gender of a bust slice with Elliptic Fourier descriptors. The test results showed high identification rates.

Introduction of dramatic play art into fashion show

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  113-0. 

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Abstract Fashion show has been 100 years of history, in order to fully demonstrate the design idea, the connotation of ear, cultural and aesthetic value, it is innovative to break the traditional catwalk style and establish a new kind of performance based on the understanding of clothing theme and performance. In that way, models will carry out performance as certain role with drama elements. What matters, is not how much drama elements used in the performance, but find out the right way; when the resonance happens, little adjustment will bring huge influence. Thus, to add appropriate drama performance, will surly break through the original performance style and produce spectacular display effect.

Fashion customization brand design model study based on dynamic multi-dimensional positioning

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  117-0. 

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The composition of fashion customization brand design model is helpful to solve the problem which existed during the indigenous brand upgrading procedure. Under the background of brand multi-variant, customization sub-brand manager always confused by brand model and design method greatly. So the model is also meaningful to create a better positioning for specific brand. To deem operation model, benefit model, business model, and service model as core dimensions, fashion customization brand model can be classified into three kinds. High-end fashion made-to-order brand, sub-brand which offer made-to-order product or service and belong to the successful ready-to-wear brand, mass customization fashion brand depends on digital technology and assembly line. Making sure study field and object after comparison. Then the positioning constructional characteristics can be concluded, three main customization motivations can be abstracted simultaneously, three dimensional positioning concept also can be abstracted basing on that, so four steps procedure of fashion customization brand positioning system is clearly. Finally, design model includes four sub-models as follow, three dimensional design model, dynamic multi-dimensional positioning model, core brand elements model, marketing mix model. Then contemporary fashion customization brand design model can be sorted out.

Structure and performance of blend spin pack for spinning PET∕PE

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  123-0. 

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The performance of the blend spin pack was studied by the PET/PE blend spinning experiments. The SEM photographs of the PET/PE blend fiber were observed and analyzed，which is processed by universal spin pack （without static mixing disk）and blend spin pack （set-in static mixing disk）. Experimental results show that the blend spin pack can help improve the performance of the dispersed phase and hold backs their together again. With the increase number of the static mixing disk in the pack the dispersed phase particle in the blend fibers was more uniform and refining.

Use of EMD-ESN model  in temperature control system of hot roll

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  128-0. 

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Draw Roll is a kind of equipment which has been widely used in chemical textile industry. The temperature stability on the surface of draw roll directly affects the quality of spinning. So the mean point of this paper is how to improve the temperature stability on the surface of draw roll. First, this paper combined empirical mode decomposition(EMD) and echo state network(ESN) as the EMD-ESN combination forecast model. Then predicted the surface temperature of draw roll by using the model. After these, combine EMD-ESN prediction method with fuzzy PID method, use the actual value minus the predicted values and put the difference as one of the input value of fuzzy PID control system. Last, used fuzzy PID system to forecast the draw roll temperature and form the draw roll temperature prediction control system. The experimental result shows that this paper’s method obtains a good effect on temperature control.

 Method for measuring whole and local clothing ventilation

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  134-0. 

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A device to measure local clothing ventilation was developed based on ongoing research. This method chose N2 as the tracer gas and used the so called ‘steady state method’ based on the mass conservation law. This measuring system can measure the clothing local ventilation values of the chest, the back, the right arm and the left arm at the same time. The clothing whole ventilation value can also be computed according to the measured data. The forced ventilation method was used to validate the system and the method was proved to achieve a better feasibility. Local ventilation of several upper body garments (common jacket, knit jacket, shooting jacket and firefighter uniform) were measured using this system. Results confirmed that the method had widespread applicability.

CAD design method for small- pattern dobby fabric weaves with determined harness numbers

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  140-0. 

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In order to simplify the design for small-pattern dobby fabric weaves, an intelligent design method for determined harness numbers and different warp and weft circulation based on image processing was proposed in this article, in which the complex images can directly apply to the design of dobby weaves. By analyzing the principle of dobby weaves, the drafting plan, chain plan and weave diagram can be converted to the corresponding weave matrix. Then according to the mathematical model of optimized harness numbers, the looming draft would suitable for dobby weaving within determined harness numbers. Comparing the weaves before and after, the result shows that the images are basically the same with no significant change. Finally, VB programming language also achieves to the realization of CAD.

Study on contributions of China's textile industry to national economic development

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  145-0. 

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The development of China's textile industry plays a significant role in the national economy structure adjustment. However，the status of textile industry in the national economy is still a topical issues．This paper aims at addressing this issue by examining the contribution and stimulation of textile industry to the national economy. In order to have a more accurate measurement of the contribution of China's textile industry to the national economic，the study presented in this paper divides the contributions of it to GDP and state revenue and foreign exchange added-value of China. The conclusion shows that it was a significant contributor to the national economy of China's textile industry Since China's reform and opening up to the 1990s, from 1978 to 2012, the average contribution rate of China's textile industry to GDP and fiscal revenue and foreign exchange is over 15%，the three average contribution degree is 2.15% and 0.51% and 3.53%. But in the 21st century, the contributions if it is on the decline. Nonetheless, China's textile industry plays an irreplaceable role in offering specialized solutions to a variety of end-user-markets including apparel, transportation interiors, composites and industrial fabrics.

Surface modification of PET by acrylic acid and collagen

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  152-0. 

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Poly (ethylene terephthalate)（PET）has good physical and chemical properties and has better application prospects as the medical polymer material. But the poor absorbency and biocompatibility of PET restrict the application in biomedical areas. So it is important to improve the biocompatibility of PET by surface modification. Firstly, this paper expounds the necessity of surface modification especially PET surface modification; then it states the development of acrylic acid used for modification of PET; furthermore, it discusses the surface modification of polyester by collagen based on biocompatibility. Finally, it points out the development prospects of the modified polyester.

Research development of thermal infrared camouflage textiles

JOURNAL OF TEXTILE RESEARCH. 2014, 35(7):  158-0. 

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The development of thermal infrared camouflage textiles has attracted more attentions because of the rapid development and wide application of the modern thermal infrared detection technology and hyperspectral remote sensing technology. Based on the introduction of the thermal infrared camouflage mechanism, the research and development status of thermal infrared camouflage textiles at home and abroad were reviewed from controlling target infrared temperature and infrared emissivity. Also the development tendency of thermal infrared camouflage textiles was indicated. The development of thermal infrared camouflage textiles should be strengthened and updated from the following several aspects：the ingenious design of fabric structure, the complex application of fabric camouflage pattern design and low emissivity coating, and the multi-functional compatibility.