Table of Content

15 February 2014, Volume 35 Issue 2

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Catalytic oxidation of formaldehyde by activated carbon fibers supported platinum

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  1-0. 

Abstract ( 817 )   PDF (1170KB) ( 462 )   Save

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Activated carbon fibers (ACF) supported platinum (Pt) catalyst (Pt/ACF) was prepared by chemical reduction method with sodium borohydride, characterized by Scanning Electron Microscope (SEM), Energy Dispersive X-ray Spectroscopy (EDS), X-ray Diffraction (XRD) and nitrogen isothermal adsorption. The catalytic activity of Pt/ACF on formaldehyde in solution was investigated. The experimental results indicated that Pt/ACF had excellent catalytic activity, and the removal rate for formaldehyde was more than 96.5 % in 9 hours, mineralized to carbon dioxide. Pt/ACF could be recycled. Pt/ACF can efficiently purify the formaldehyde at room temperature, which could be mineralized to carbon dioxide.

Surface grafting of cashmere fiber and its performance

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  6-0. 

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In order to improve the felting, easy pilling characteristics of cashmere fabric, we researched on the cashmere fibers to graft on the surface with methyl acrylate as monomer, potassium persulfate (KPS) as initiator, analyzed the influence factors of the graft rate, and tested the morphological structure and main performance of the grafted cashmere fiber. It shows that: with bath ratio 1:20, initiator KPS amount of 1%, monomer concentration 40%, reaction temperature 80 ℃, reaction pH value 2, we can succeed to get the different increasing weight rate of graft cashmere feasible by controlling the reaction time; the cashmere fiber that the grafted weight increasing rate is 10%, got certain modifications on the surface based on maintaining a full scale structure, and its mechanical properties increased slightly, friction properties improved a lot, felting performance can be improved to a certain extent.

Finite element analysis of effects of core structures on compression-resistance of fiber reinforcement composites

Li-Min JIN Chun-Xia WANG

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  12-0. 

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In order to summarize the effects of core structures on mechanical behavior of the hollow fiber reinforcement composites, the dynamic responses of “π”shape and “O” shape core structural fiber reinforcement composites under the same compression loading condition were calculated and compared by finite element analysis (FEA) in the level of yarn core and resin. By omparatively analyzing the deflection-time curves, structural stress distributions, the locations of maximum and minimum stress and quilibrium degree of stress of the two type of composites, it was found that the deflection magnitude of the“O”shape core composite was obviously less than that of the“π”shape core composite. Moreover, for the “O”shape core composite, its stress concentration region located at the symmetrical central line of geometrical structure, which was very beneficial to the overall loading-bearing behavior of the composite structure. In addition, it may induce the greater stress equilibrium degree, all of these factors made this type of structural material to absorb and dissipate more energy during the loading process.

Preparation of alginate-chitosan phase change heat storage microcapsules

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  18-0. 

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Both alginate and chitosan are cheap and environmental friendly as the natural polymers, which have the considerable prospects. In order to solve fatty alcohol Leakage problem during the phase change process, microencapsulated binary fatty alcohol with alginate-chitosan shells as phase change material for thermal energy storage were prepared by emulsification-gelation. The dosages of core materials, CaCO3, emulsifier and the concentration of chitosan have been investigated. Microcapsules were characterized by DSC, SEM, laser particle sizer and temperature-time cures. The results show that the phase transition temperature is 37.9℃, the temperature adjustment range is 37.9~40.8℃, the latent heat is 52.8J/g, and binary fatty alcohol encapsulation efficiency is 44.7%.

Influence of yarn formation process on properties of bamboo pulp fiber colored spun yarn using air jet vortex spinning

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  23-0. 

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In this paper, experimental schemes are designed by Box-Behnken method. The software Minitab 16 is introduced to analyze the influence of process parameters of air jet vortex spinning on properties of bamboo pulp fiber vortex colored spun yarn, which makes for broadening varieties of vortex spun yarn and improving productivity of traditional colored spun yarn. Research results show that effect of yarn formation process on the tenacity of air jet vortex colored yarn spun by bamboo pulp fiber is complicated, and the effect of yarn delivery speed and yarn linear density on yarn tenacity depends on the change of nozzle pressure. The evenness of colored yarn is affected principally by yarn delivery speed and yarn count. Increasing yarn delivery speed makes yarn’s evenness value decrease and then increase. However decreasing yarn linear density will significantly deteriorate yarn evenness. Yarn hairiness is influenced mainly by nozzle pressure and yarn delivery, which becomes more when decreasing nozzle pressure and increasing yarn delivery. Yarn diameter is affected primarily by nozzle pressure and yarn count. Enhancing nozzle pressure and decreasing yarn linear density result into the obvious decrease of yarn diameter.

Innovative design and manufacture of composite yarn with novel structure on TRIZ theory

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  29-0. 

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In this paper, with the purpose of recovering wrapped and core-spun composite yarns’ defects, the design thought of novel composite yarn was analyzed using TRIZ Nine Screen Method. Furthermore, technology conflict resolution principles 1, 15, 17, 27 and 32 were applied to direct and complete the design and manufacture of novel composite yarn: three filaments were fed into the front nip and located into drafted strand at a certain distance by a special input feed system, and they were twisted into such novel composite yarn by spindle after the filaments and cotton fibers were exported through the front roller nip. Finally, the real structure of designed yarn was very similar to ideal structure which came from TRIZ theory, and the novel composite yarn, compared to core-spun yarn and wrapped yarn, had innovative structure, excellent strength and abrasion resistance, at the same time, the hairiness property was also improved greatly.

Influence of fabric structure on sweater warmth retention

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  34-0. 

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Abstract In order to find out the fabric structure influence on the property of the fabric, 5 kinds of stitches such as the siping needle stitch, milano rib stitch, 1+1 rib stitch, cardigan and half cardigan stitches commonly used in sweater were selected and, their performance were tested. The experimental results show that siping stitch is the most thinnest; The warmth retention of cardigan stitch is the best and its breathability also very good; The warmth retention is influenced by both the thickness and permeability. In a certain sinking depth range, the thickness plays a leading role on the influence of the warmth retention property, with the increase of sinking depth, the permeability become the leading role; The warmth retention thickness ratio and sinking depth has quadratic polynomial relationship.

Development and performance evaluation of cool -type interweave silk fabric

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  39-0. 

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In order to develop a new type of cool summer fabric，a group of fabrics were made. Which used silk as warp yarns, modified polyester yarn and silk as weft picking, The fabrics had a different proportion of modified polyester with 2/2 twill weave .Test the basic parameters of the thickness and the fabrics square meters heavy, Then the contact apathetic, heat transfer value, regenerative heat up and Dampness of the fabric cool to evaluation the fabric’s hot-wet performance. The result shows that: the fabric made by silk has a good contact apathetic to quickly transfer heat; The samples in some cases of the relative thickness of the fabric content of modified polyester higher the better the heat transfer performanc and which content more of modified polyester can keep a long time in the process of regenerative heating fabric at low temperature. Silk has good performance zhan modified polyester at moisture permeability.

Research on color difference between PLA and PET fibers dyed with disperse dyes

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  43-0. 

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Polylactic acid (PLA) fiber and polyester (PET) fiber belong to polyester fibers which general be dyed in disperse dyes. Because of the molecular structure and chemical properties of the two kinds of fibers were different, the same dyeing would be shown the color difference phenomenon in fibers. Dyeing PLA, PET fiber with 15 typical disperse dye in papers. The experiment through the dye in the fiber color characteristic value and maximum absorption wavelength showed that significant color different phenomenon in the two kinds of fibers and dye in the PLA fiber produced light effect, and light effect of anthraquinone type and heterocyclic azo type was weaker, anthraquinone type or heterocyclic azo type disperse dye was suitable for PLA, PET woven fabric or blended fabric dyeing. Analysis of the mutual adaptability of PLA, PET and dyes had been given in papers and the dyes suit for PLA/PET blend system was put forward. The result of papers had certain theoretical guiding significance for practice dyeing and the suitable dyes of PLA, PET woven fabric or blended fabric.

Preparation of fluorinated acrylate emulsion by micro-jet pre-emulsification

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  47-0. 

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A kind of acrylate polymer emulsion being provided with water and oil repellent properties was synthesized by emulsion polymerization, in which the fluorinated acrylate together with glycidyl methacrylat, N,N-dimethyl formamide, butyl acrylate and dipropylene glycol was selected as monomers, and NP-10, NP-8 and octadecyl trimethyl ammonium chloride were employed as emulsifying agent, and 2,2’-azoisobutyramidinedihydrochloride was taken as the initiator in this article. The effects of pre-emulsifying technology on the emulsion particle size and application were discussed, and the structure was featured by IR. The results demonstrated that the emulsion particle size distributed in 50~57nm and the emulsion particle was positive electricity after being pre-emulsificated twice under the pressure of 15000psi by micro-jet dispersion method. And the performance was stable. Therefore, the water and oil repellent properties of the cotton fabrics treated with the emulsion was excellent, and the contact angle to water and oil were over 140o and 145o respectively.

Synthesis of novel UV-absorber and its application on cotton fabrics

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  52-0. 

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A reactive UV-absorber, 4-(4,6- dichloro-1,3,5-triazin-2- yloxy)-2-hydroxyphenyl) (phenyl)methanone (UV-DTHM）was successfully synthesized by reaction of xy benzophenone(UV-O) with Trichloro-1,3,5-triazine(TCT), and was applied to anti-UV finishing of cotton fabrics. Padding temperature in finishing liquor of UV-DTHM, steaming time, concentration of UV-DTM was discussed. Obtaining the finishing process of the optimized conditions. The highest UPF(46.5) can be get in the conditions of 60℃, 2% o.w.f UV-DTHM and 60min, and after 30 soaping, UPF remain 34.2 which showed fairly good fastness to soaping.

Reactive dyeing of soybean∕casein∕polyvinyl alcohol blend fibers

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  56-0. 

Abstract ( 648 )   PDF (1200KB) ( 568 )   Save

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Reactive dyes were applied to dyeing soybean/casein/polyvinyl alcohol blend fibers (short for double protein fibers). The influence of dyeing temperature, dyeing time, dosage of sodium carbonate and sodium chloride on dyeing percent of exhaustion and fixation were studied. The dyeing performance of double protein fiber and soybean protein fiber were compared. The building up properties of these dyes were also discussed. The results showed that the optimal process of medium temperature reactive dyeing double protein fiber was sodium carbonate 1-2g/L, sodium chloride 20-40g/L, dyeing at 60℃ for more than 60min; The optimal process of high temperature reactive dyeing double protein fiber was sodium carbonate 0g/L, sodium chloride 20-40g/L, dyeing at 80 to 90℃ for more than 60min; The dyeing percent of exhaustion and fixation of double protein fiber at the same dyeing conditions was higher than that of soybean protein fiber. The building up power of reactive dyes on double protein fiber was good.

Characteristic and evolution of wave-cliff patterns on dragon robes during qing dynasty

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  62-0. 

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The wave-cliff pattern, which is a symbol of the royal and noble status，was widely used on Qing Dynasty’s dragon robes. In order to enrich the study of the Qing Dynasty clothing patterns and provide a foundation for dividing the history of dragon robes into periods, this paper elaborated the wave-cliff pattern’s characteristics by analyzing and collating the data of the dragon robes during Qing Dynasty. The evolvement rules of wave-cliff patterns of Qing Dynasty was summarized by generalizing and concluding the details of wave-cliff patterns. The results showed that the evolvement rules of wave-cliff patterns changed from plain and simple to luxurious and elegant visual effect over time, eventually tended to regular and sophisticated style.

Implied cultural connotation on hand knitted bracelets

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  67-0. 

Abstract ( 562 )   PDF (877KB) ( 407 )   Save

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In order to disclose the broad and profound Chinese folk culture in the little hand woven bracelets, a lot of material object has been collected and studied. By analyzing the construction of them, it pointed that knot and charm is basic elements of it. It also pointed, as one kinds of China Knot application, that the hand woven bracelet has not only special aesthetic form but also broad and diverse culture. By traced the source of Implied References by analyzing the Five element theories and the culture of religious implement, knot and jade, it pointed that the accessories have been given various intention by of Chinese culture aspects in various value orientation. Base on them, it analyses the spirit level of hand woven bracelet in China indirect comparison and states the feature of three kinds indirect comparison in matter feature ,action and pronunciation.

Study of functional structure design of volleyball match sportswear

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  71-0. 

Abstract ( 602 )   PDF (2007KB) ( 654 )   Save

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Design of networked and electric control system for flat screen printing unit

Huaizhong CHEN

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  78-0. 

Abstract ( 653 )   PDF (1414KB) ( 283 )   Save

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According to the deficiency of the traditional printing screen printing unit such as poor anti-interference ability, weak communication networking function, low position control accuracy, the big pollution of net frame up and so on, this paper put forward a kind of electrical control improved scheme aiming at above deficiency. At the same time we use the Panasonic FP-X PLC as the center controller of each printing unit，Each printing unit forming monitored control system though PC-LINK communication networks, and the touch screen as a display and control unit, dynamically monitoring the production process. The printing unit scraper system and network frame lifting system technology is improved by using new permanent magnet synchronous servo driving strategy. Though the renovation to a number of enterprises equipment, results show that system has high control precision, fast speed, full functions, high degree of automation, and the efficiency of production and management of enterprises is improved.

Effect of drum friction test conditions on electric charge accumulation on anti-static clothing

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  84-0. 

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In order to study charges produced by friction in the anti-static clothing, drum friction measurement is used to produce accumulated charges, then these charges are observed by Faraday cage and related devices, and the charge distribution is focused to consider under the same and different relative humidity (RH). Friction time effect is also investigated. The results showed: 1) The distribution of electric charges is between 0.10μC and 0.40μC, and relatively disperse for the 0.2μC criteria in GB12014—2009. Above 50 tests are more reliable for the value record. 2) As each friction time extends, the magnitude of electric charges does not increase. However, the mean value of electric charges slightly decreases as the friction cycle increases. 3) It is demonstrated that electric charges decrease as the RH increases in the 60% distribution zone (0.19μC—0.25μC). However, the trend is not obvious for overall charge distribution.

Strategies for research and development of medical textile materials

Qin Yimin

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  89-0. 

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Medical textile materials are a type of functional textile products with special properties and end uses. Medical textile materials are widely used in many fields with production technologies encompassing textile, material, medicine and many other disciplines, making them one of the most technically sophisticated and highest value added industries. This paper analyzed the importance of research and development strategy for the development of medical textile materials and introduced the principles of product positioning based on market classification. Taking into consideration of the characteristics of medical textile materials, a practical research and development process was proposed, with significant implications in guiding the successful development of medical textile materials.

Research on image retrieval algorithm by relevance feedback technology and shape features

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  94-0. 

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Abstract: Content based image retrieval is a research focus in clothing electronic commerce. Shape feature is the most important clothing image visual features. Image retrieval based on shape feature has been the problem of image processing for many years. In order to improve the accuracy of the system, an algorithm has been put forward which use general Fourier descriptors and the improved feedback technology .General Fourier descriptor has outstanding performance in all kinds Fourier descriptors. At the same time, according to the probability distribution, the algorithm improves weight calculation method for the query vector .So the correlation dimension is more reasonable. The experimental results show that the proposed algorithm outperforms the traditional algorithm.

Research advances in negative Poisson's ratio structure textile materials

Zhao-Qun DU

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  99-0. 

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The structure analyses of negative Poisson’s ratio foam and polymer show that the negative Poisson?s ratio materials have microstructures with re-entrant and internal rotation folded structure, which is the essence for auxetic effects and the design concept of auxetic textile materials. The investigation on the structure of auxetic fiber, yarn and fabric, also demonstrates that re-entrant structure or internal-rotation folded structure is the basic structure for auxetic fiber, internal-rotation folded structure being the basic structure for auxetic yarn, and re-entrant structure or internal-rotation folded structure being the basic structure for auxetic fabric. The present work of the structure and development trend of negative Poisson's ratio material can contribute to improve the new textile material technology and new functional textile products.

Design mode and development tendency of smart clothing

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  109-0. 

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Although smart clothing has been the area of research focus in recent years, the study of design process is not well-developed. Several typical cases are analyzed in order to identify the key issues in smart clothes development. General design approaches are concluded from the aspect of interaction relationship in terms of technic, textile and construction. A general process is put forward, which is adhering to user-centered concept, applying general design approaches, and estimating by the form of classification drawing on the experience of five-level evaluation system of protective clothing. In the whole process of smart clothes development, environmental pollution should be reduced, and recycling utilization should be increased so that smart clothes will be more environmental friendly. The tendency of smart clothing can be divided into two aspects: professional integration for the specific groups, and commercialization for the vast number of consumers.

Study on swelling behaviors of cellulose pulp in NMMO/H₂O

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  116-0. 

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The swelling behaviors of cellulose in N-methyl morpholine solution (NMMO/H2O) were investigated by measuring the thickness crystallinity changes before and after swelling of cellulose pulp in NMMO/H2O. The effects of concentration, temperature and time of swelling conditions in NMMO/H2O solution during swelling of cellulose pulp were discussed. The results showed that cellulose swelling rate was increased with increasing the NMMO concentration and swelling temperature, and the swelling effect is better. Based on X- ray diffraction analysis of the crystallinity of the swelling cellulose pulp, it was concluded as following: NMMO/H2O can change the crystallinity of cellulose pulp. The more crystallinity the of cellulose pulp was decreased with increasing the concentration of NMMO/H2O solution, and it was influenced by temperature.

Research progress in cellulose fiber preparation with alkali/urea aqueous solution at low temperature

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  121-0. 

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Cellulose is the optimum option to replace the oil resources, but cellulose can neither dissolve in common solvent nor melt-spin due to the special structure of cellulose, which severely limits the industrial development of these strong polar polymers. Therefore, the number of investigations on high efficient preparation of cellulose fiber with green methods has been rapidly increasing. Based on the new dissolving technology of cellulose in alkali/urea aqueous solution at low temperature which invented by Academician Zhang Lina, the spinning engineering experiments of cellulose has been investigated systemically, including batch process, continuous process and continuous in-situ chemical modification process. The results showed that the strong shear stress of extruder can obviously increase the dissolving efficiency and solubility of cellulose as well as prolong the gelation time of solution, so the continuous and stable spinning of cellulose dopes with high concentration was achieved.

Development survey and outlook of new solvent process regenerated cellulose fibers

Yu-Shan SUN

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  126-0. 

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From the long-term development point of view, the solvent process regenerated cellulose fibers will radically resolve the collision problem of land occupation between grain and cotton, and become a staple variety of future fiber materials. The Lyocell fiber will come into being about 300 thousand tons production scale worldwide in recent years, and move towards high speed developing period after quantity production of specialized cellulose pulp and solvent in the future. For alkali / urea aqueous solvents, the key point is to resolve the problem that the hydrogen bond formed in the coagulating process restricts the drawing orientation of the macromolecules. For cellulose carbamate / NaOH aqueous solution system, the technological parameters need to be optimized to reach the level of viscose fibers in fiber performance and technological economic indices. For ionic liquid solvent system, the functional fibers can be developed for the first stage. For phosphoric acid solvent system, the key point is to resolve the problem of degradation control and solvent recovery, in order to realize low cost and environment friendly production.

Ionic liquid as novel solvent in application of preparation of high-value added cellulose fibers

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  133-0. 

Abstract ( 641 )   PDF (1244KB) ( 379 )   Save

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In order to develop high-value cellulose fibers, the application of ionic liquids in the preparation of high value cellulose fibers were reviewed. The details of the ionic liquid solvent system, the spinning process and the progress of technology were discussed. Point out that theory research of ionic liquids in the application of cellulose fibers has been fully studied, technology system has been found. Kinds of high values cellulose fibers had been listed, the composite cellulose fiber and cellulose derivation fibers maybe the future of cellulose fibers prepared with ionic liquids as solvent.

Influence of carbon materials on degradation of sodium alginate spinning solution

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  138-0. 

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The research aimed to study the degradation effect of carbon black, activated carbon, graphene oxide and multi-walled carbon nanotubes on sodium alginate solution. Employing the GPC and rotation viscometer, the changes of degradation rate of SA/carbon material complex solutions were analyzed firstly and based on those results, degradation kinetics of SA complex solutions were investigated. It was found that among these carbon materials, the effect of anti-degradation was GO>CB>AC>MWCNTs. The degradation rate constants was kSA>kSA/MWCNTs>kSA/AC>kSA/CB>kSA/GO. Anti-degradation effect of SA/carbon material solutions were characterized by FTIR, XRD and SEM. The results indicated that no new covalent bond formed，but H-bond existed between SA and carbon materials. The crystalline region of SA film after UV irradiation was slightly decreased, but graphene oxide/SA complex film was notably enhanced. The neat SA film exhibited cracking while SA/carbon complex film didn’t after UV irradiation. To summarize, carbon materials as degradation agents have advantages of simple technology and easy operation.

Current status and development trend of application of alginate fiber

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  145-0. 

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Alginate fibre is one of well recognised bio-polymer fibres. Its raw material (sodium alginate) is extracted from brown seaweed. The fiber has a very good biocompatibility, forms gels on contacting with wound fluid through ion exchanges, and has a good moisture absorption and retention capacities. There have been a large body of researches and reports on this material over the past decades. In this paper, the authors reviewed the history of the alginate fiber, compared the strength and the weakness of the material and discussed the applications and limitations of the technology. In particular, the authors summarized the developments of alginate fiber as an advanced wound dressing. The authors therefore have made suggestions regarding the further development needs of alginate fiber and it technologies in general textile applications and in medical applications.

Technical requirements on the label of biomass regenerated fibers and related thinking

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  153-0. 

Abstract ( 466 )   PDF (1211KB) ( 339 )   Save

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To the problem of the name of the biomass regenerated fiber ,the labelling of its production while more and more new fiber biomass regenerated fibers are researching and developing, through the analysis of the main trade in textile and apparel technology regulations, the labelling of products were mandatory and permanent. Some suggestions about the fiber generic name，fiber identification and method for quantitative analysis of the biomass of regenerated fiber were given.

Industrialized green spinning technology and application of pure chitosan fibers

JOURNAL OF TEXTILE RESEARCH. 2014, 35(2):  157-0. 

Abstract ( 527 )   PDF (1279KB) ( 447 )   Save

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This article simply introduced the development history of pure chitosan fiber both at home and abroad. Focusing on the research and breakthrough of industrialized green spinning technology in production of pure chitosan fiber. Described the application of pure chitosan fiber in Medical, Hygienic, Textile, Aerospace, Military industry, Filter, etc. Will strengthen the industry-university-research cooperation, and promote the research and development of pure chitosan fiber related products in high-end application. In order to better play the important role of pure chitosan fiber in promoting human health and improving the quality of life,thus to promote the pure chitosan fiber industry sustained, healthy and rapid development.Thus to promote the sustained, healthy and rapid development of chitosan fiber industry.