Physical Properties Of Fibers Research Articles

Analysis of physical and thermal properties of chiengora fibers

ABSTRACTThis paper excogitates the potential of an unconventional animal fiber in textile applications. The chiengora fiber taken from dog hair has been chosen for this current study to analyze their chemical, physical, morphological, and thermal properties to explore their usage in textiles. Hairs from five different breeds of dogs namely Labrador, Golden retriever, German shepherd, Pomeranian, and Lhasa apso have been characterized and tested in this study. The research revealed that the chemical, morphological, and thermal properties of the hairs of five breeds are similar to each other. However, marked difference is observed in the physical properties of the fiber such as denier and diameter. It is also found that chiengora fibers have more tenacity than other animal fibers and are very coarser than wool fibers. The X-ray diffraction results reveal that chiengora fibers are having higher crystallinity compared to other animal fibers. Only hairs of Lhasa apso and Pomeranian breed have spinnability characteristics using spinning machines due to their finer denier and higher slenderness ratio and may be spun into yarn to create textile products.

Strength Characteristics of Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) in accordance with Physical Properties of Fiber

Strength Characteristics of Ultra-High Performance Fiber Reinforced Concrete (UHPFRC) in accordance with Physical Properties of Fiber

Study of Natural Dyes and Pineapple Leaf Fibres Growing Locations within Plant Stems on Dyeing Intensity.

The physical properties of fibres produced from pineapple leaves can vary due to the differences in growing locations within a stem and are influenced by leaf growth age. Pineapple leaf fibres require quality increase, particularly in dyeing. The utilizing of natural dyes ingredients from suji (Dracaena angustifolia) leaves extract, turmeric (Curcuma domestica val) and sappan (Caesalpinia sappan [L.]) wood have friendly impact on the environment. Various types of natural dyes and leaf fibres growing location within the stems of pineapple plants and the color intensity are carefully examined in this study. The diversity of natural dyes used in dyeing influenced the fibres color intensity of pineapple leaves. Pinneaple leaf fibers growing loccation within pineapple stems impacted fibre color lightness intensity, the axis a* and b* colors. The utilization of pineapple leaf fibers from the base of plant stem is more suitable to be used as textile raw material due to its higher lightness level.

YARN DEVELOPMENT FROM RICE STRAW TO COMMERCIAL

This research studied the process of separating fibers from rice straw. To study the physical properties of fibers from rice straw and the process of manufacturing yarn from rice straw fibers. It was analyzed by physical textile testing laboratory and developed as woven and into commercial products. The process of separating fibers from dried rice straw and selected the rice straw fiber length at least 30 cm. To subtract and peel off the joints of the lower end by hand. The result in the physical laboratory, it is cellulose fibers, tensile strength (Newton) at 28.18, elongation (percent) is at 2.01 which is cross-section; oval and clearly and its length is smooth and transparent. There are metals plenty of CADMIUM and LEAD at 0.1 mg/kg, CHROMIUM (TOTAL) / (VI) and COPPER at 0.5 mg/kg. There are 2 warps yarn and using natural color without blench. When woven as a fabric to develop for 4 products prototype: table lamps, tablecloths in Japanese style, potted plants and Accessories Box. Article DOI: https://dx.doi.org/10.20319/mijst.2017.32.506513 This work is licensed under the Creative Commons Attribution-Non-commercial 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.

The effect of alkali treatment under various conditions on physical properties of kenaf fiber

Alkali treatment was known as one commonly used treatment for natural fiber and obtained a good fiber matrix adhesion, thermal and mechanical properties of composite. This paper reports the effect of alkali treatment conditions on the physical properties of kenaf fiber such as density, weight loss, diameter, cross sectional and fiber morphology. In this study, kenaf fiber were treated under various conditions alkali concentration at 2, 6 and 10 (w/v%), immersion duration at 30, 240 and 480 minute and immersion temperature at 27, 60 and 100°C. The effects of alkali treatment on kenaf fiber physical properties under various conditions were explored. Alkali treatment conditions setting have an impact on kenaf bast fiber physical characteristics. In kenaf fiber density, it was found that a small increase of kenaf density value after alkali treatment compared to untreated kenaf fiber. When each of alkali treatment parameters increased, kenaf fiber density also increased slightly. Kenaf fiber weight loss also exhibit a similar pattern of small increment with the increase of treatment parameters. Additionally, kenaf fiber diameter and cross sectional area show a decline pattern after treated with alkali. Furthermore, this decline pattern was corresponding with the increasing level of alkali treatment parameters. The maximum of kenaf diameter reduction was recorded at high level of each alkali treatment parameters.

A Review of Physio-Biochemical Properties of Natural Fibers and Their Application in Soil Reinforcement

Abstract The use of natural materials in place of synthetic materials has been the focus of research in sustainable geotechnics. In this context, use of natural plants/weeds as randomly distributed fiber-reinforced soil (RDFS) is extensively researched as a possible soil-improvement technique. The behavior of soil–natural fiber composite is dependent on the biochemical, physical, and mechanical properties of natural fibers. These natural-fiber properties are inherently different from those of conventional synthetic fibers, in which mechanical properties essentially govern the soil-fiber composite behavior. Very few geotechnical applications using natural geo-reinforcement materials have taken into consideration the biochemical and physical properties of the fiber. Moreover, there is rarely any systematic assessment and compilation of the work encompassing the application of natural fibers in soil reinforcement. This review summarizes the use of natural fibers in soil reinforcement. The study explores the importance and impact of natural-fiber properties on the performance of natural fibers in subsoil conditions. The treatment methodologies used in natural fibers to increase their longevity and reinforcement capabilities are also discussed. Based on this review, some key research gaps and the future scope of research have been highlighted. The review strongly recommends potential natural flora as RDFS fibers from a sustainability perspective. The review brings out the importance of biochemical composition (cellulose, lignin, hemicellulose, etc.) on fiber performance in subsoil conditions and highlights the use of treatment methodologies for fibers.

Influence of Mechanical Harvesting Process on Productivity and Quality of Cotton Fiber

The aim of this study is to evaluate and compare the performance of two different types of cotton pickers, namely the John Deere model 7260 and the Pamuk brand cotton harvesting machine model ptm2. Therefore, field experiments were conducted to investigate the effects of four mean forward speeds of 1.32 ,1.66, 1.87, and 2.15 km h-1, three fiber moisture contents of 13.3, 10.8, and 8.7% d.b, and three inter-row spaces of 0.70, 0.76, and 0.85 m. on the picking losses, machine productivity, specific energy consumption and fiber physical properties. The results showed that the minimum values of the picking losses were 0.8 and 4.5 % for the John Deere and Pamuk cotton pickers respectively recorded at a forward speed of 1.32 km/h, a fiber moisture content of 10.8% d.b., and an inter-row spacing of 0.85 m. The maximum values of machine productivity of the John Deere and Pamuk cotton pickers were 2.1 and 0.995 Mg h-1, respectively, at a forward speed of 2.15 km h-1, a fiber moisture content of 10.8%, and an inter-row spacing of 0.76 m. The lowest values for the specific energy consumption were 23.07 and 30.69 kW h Mg-1 for the John Deere and Pamuk cotton pickers, respectively, at a forward speed of 2.15 km/h, a fiber moisture content of 8.7 % d.b., and an inter-row spacing of 0.85 m. Also, At a forward speed of 1.32 km/h, fiber moisture content of 13.3% and an inter-row spacing of 0.76 m. both cotton pickers achieved the maximum values of 2.5% span fiber length, 50 % span fiber length, fiber length uniformity ratio and reflectance and minimum values of seed cotton trash content and yellowness.

Influence of fibers on drying shrinkage in restrained concrete

Drying shrinkage cracks mainly start to develop at the exposed surface of the concrete elements due to the shrinkage strain caused by self-desiccation. For the purpose of controlling drying shrinkage cracks additions and fibers are used in fresh concretes in order to provide high early age mechanical capacity for moderating the crack development. The purpose of this study is to evaluate the performance of using different fibers in reducing the drying shrinkage and cracking under restrained conditions. To investigate the effectiveness of using both polymeric and metal fibers in concrete, three different types of fibers, including polypropylene fiber, polyolefin fibers, and steel fiber were used in this study. The maximum drying shrinkage strength was highly dependent on fibers’ module of elasticity. The average length cracking and its pattern in fiber reinforced concretes were different than control concrete. The physical properties of fibers have direct effects on reducing the cracking width.

MECHANICAL PROPERTIES AND SURFACE FREE ENERGY OF OIL PALM EMPTY FRUIT BUNCHES FIBRE REINFORCED BIOCOMPOSITES AS GLASS FIBRE SUBSTITUTION

Study of the size effect of natural fibre from oil palm empty fruit bunches (OPEFB) as filler, onto the mechanical and physical properties of fibre reinforced biocomposites based on recycled Acrylonitrile Butadiene Styrene (ABS) has been done. The OPEFB fibres were prepared by mechanical milling and sieving to obtain medium-fibre (20 mesh) and short-fibre (100 mesh). The biocomposites have been produced by extrusion using single-screw extruder method. Mechanical properties and S of biocomposites were evaluated and compared with glass fibre (GF) filled composite which is commonly used in plastics industrial applications. The result showed that the impact strength increased with the decreasing of OPEFB fibre size, while the Young’s modulus decreased. Other mechanical properties of biocomposites with short-fibre (RABS/SF) and medium-fibre (RABS/MF) filler were not significantly different at 95% confidence interval. Impact strength of short-fibre filled biocomposite was higher than glass fibre filled composites. The surface free energy of biocomposites lower than glass fibre filled composites, but its dispersive components are higher, indicating more hydrophobic feature of the surface. The fabricated micro-fibre of OPEFB can be used as viable alternative to substitute glass fibre as filler materials of composites.

The effect of engineered nanotopography of electrospun microfibers on fiber rigidity and macrophage cytokine production

Currently, it is unknown how the mechanical properties of electrospun fibers, and the presentation of surface nanotopography influence macrophage gene expression and protein production. By further elucidating how specific fiber properties (mechanical properties or surface properties) alter macrophage behavior, it may be possible to create electrospun fiber scaffolds capable of initiating unique cellular and tissue responses. In this study, we determined the elastic modulus and rigidity of fibers with varying topographies created by finely controlling humidity and including a non-solvent during electrospinning. In total,five fiber scaffold types were produced. Analysis of fiber physical properties demonstrated no change in fiber diameter amongst the five different fiber groups. However, the four different fibrous scaffolds with nanopits or divots each possessed different numbers of pits with different nanoscale dimensions. Unpolarized bone marrow derived murine macrophages (M0), macrophages polarized towards a pro-inflammatory phenotype (M1), or macrophages polarized towards anti-inflammatory phenotype (M2b) were placed onto each of the scaffolds and cytokine RNA expression and protein production were analyzed. Specific nanotopographies did not appreciably alter cytokine production from undifferentiated macrophages (M0) or anti-inflammatory macrophages (M2b), but a specific fiber (with many small pits) did increase IL-12 transcript and IL-12 protein production compared to fibers with small divots. When analyzing the mechanical properties between fibers with divots or with many small pits,divoted fibers possessed similar elastic moduli but different stiffness values. In total,we present techniques capable of creating unique electrospun fibers. These unique fibers have varying fiber mechanical characteristics and modestly modulate macrophage cytokine expression.

Bioinspired lignocellulosic films to understand the mechanical properties of lignified plant cell walls at nanoscale

The physicochemical properties of plant fibres are determined by the fibre morphology and structural features of the cell wall, which is composed of three main layers that differ in chemical composition and architecture. This composition and hierarchical structure are responsible for many of the mechanical properties that are desirable for industrial applications. As interactions between the lignocellulosic polymers at the molecular level are the main factor governing the final cohesion and mechanical properties of plant fibres, atomic force microscopy (AFM) is well suited for the observation and measurement of their physical properties at nanoscale levels. Given the complexity of plant cell walls, we have developed a strategy based on lignocellulosic assemblies with increasing complexity to understand the influence of the different polymers on the nanomechanical properties. Measurements of the indentation moduli performed on one type of lignified cell wall compared with those performed on the corresponding lignocellulosic films clearly show the importance of the lignin in the mechanical properties of cell walls. Through this strategy, we envision a wide application of bioinspired systems in future studies of the physical properties of fibres.

Electrospinning Pullulan Fibers from Salt Solutions.

There is an increasing interest in applying the technology of electrospinning for making ultrafine fibers from biopolymers for food-grade applications, and using pullulan (PUL) as a carrier to improve the electrospinnability of proteins and other naturally occurring polyelectrolytes. In this study, PUL solutions containing NaCl or Na3C6H5O7 at different concentrations were electrospun. The inclusion of salts interrupted the hydrogen bonding and altered solution properties, such as viscosity, electric conductivity, and surface tension, as well as physical properties of fibers thus obtained, such as appearance, size, and melting point. The exogenous Na+ associated to the oxygen in the C6 position of PUL as suggested by FTIR measurement and was maintained during electrospinning. Bead-free PUL fibers could be electrospun from PUL solution (8%, w/v) in the presence of a 0.20 M NaCl (124 ± 34 nm) or 0.05 M Na3C6H5O7 (154 ± 36 nm). The further increase of NaCl or Na3C6H5O7 resulted in fibers that were flat with larger diameter sizes and defects. SEM also showed excess salt adhering on the surfaces of PUL fibers. Since most food processing is not carried out in pure water, information obtained through the present research is useful for the development of electrospinning biopolymers for food-grade applications.

Physical and Chemical Properties of Poly (l-lactic acid)/Graphene Oxide Nanofibers for Nerve Regeneration

ABSTRACTThe development of biodegradable polymeric nanofiber scaffolds for a potential effort to repair injured nerve cells is of great interest in nerve tissue engineering applications. Poly (L-lactic acid) (PLLA) has been widely used in nerve conduit studies due to its biocompatibility, easily shaped properties and degradation to low toxic lactic acid. However, its hydrophobicity and lack of binding sites for cellular activities restricts its use as implants. In this regard, this study involves the incorporation of graphene oxide (GO) into PLLA nanofibers for enhancing mechanical properties, electrical conductivity and hydrophilicity of PLLA to make it suitable for a potential peripheral nerve regeneration application. For this purpose, PLLA and PLLA/GO nanofibers were prepared via electrospinning. The processing parameters and solution parameters were optimized to adjust physical and mechanical properties of nanofiber in terms of size, porosity and biologically active affinity for cellular interaction. The morphology and composition of the developed electrospun fibers were characterized via, Scanning Electron Microscopy (SEM), Raman Spectroscopy, tensile testing and contact angle measurements. The morphological results showed that using chloroform/DMF ratio of 8/2 for 7wt% PLLA led to the formation of bead free and thinner PLLA fibers than fibers produced from other concentration of PLLA. Moreover, the addition of the GO resulted in decrease of the average diameter of PLLA fibers from 828 nm to 490 nm and the thinnest nanofiber structure was obtained by addition of 10 v/v % GO. The sonication time of GO highly enhanced the porosity of the nanofibers, namely the porosity of the nanofibers increased with increasing sonication time. Raman Spectroscopy exhibits peaks at bands of 1775, 873 and 1455 cm-1that are attributed to C=O stretching, C-COO stretching and CH3asymmetric deformation respectively for PLLA and 1379 and 1599 cm-1which represent structural imperfections and sp2 domain of carbon atoms respectively for GO. Hence, Raman peaks confirmed that GO was mixed in PLLA nanofibers. The incorporation of GO significantly improved the tensile strength from 2.25 MPa of pure PLLA to 8.13 MPa, 10.44 MPa and 12.93 MPa with 5, 7.5 and 10 v/v% of GO addition, respectively. The results revealed that the addition of GO led to enhanced chemical and physical properties of fibers which is promising for nerve regeneration applications.

Elastin structure and its involvement in skin photoageing

Skin aging is a complex process that may be caused by factors that are intrinsic and extrinsic to the body. Ultraviolet (UV) radiation represents one of the main sources of skin damage over the years and characterizes a process known as photoaging. Among the changes that affect cutaneous tissue with age, the loss of elastic properties caused by changes in elastin production, increased degradation and/or processing produces a substantial impact on tissue esthetics and health. The occurrence of solar elastosis is one of the main markers of cutaneous photoaging and is characterized by disorganized and non-functional deposition of elastic fibers. The occurrence of UV radiation-induced alternative splicing of the elastin gene, which leads to inadequate synthesis of the proteins required for the correct assembly of elastic fibers, is a potential explanation for this phenomenon. Innovative studies have been fundamental for the elucidation of rarely explored photoaging mechanisms and have enabled the identification of effective therapeutic alternatives such as cosmetic products. This review addresses cutaneous photoaging and the changes that affect elastin in this process.

Structural and Antibacterial Properties of PP/CuO Composite Filaments Having Different Cross Sectional Shapes

AbstractTextile scientists make researches for producing new types of fibers as well as modifying the existing fibers to provide new raw materials for technical textile applications. The easiest way of modifying fiber physical properties is to change the cross sectional shape of a synthetic fiber. Also, composite fibers loaded with different kinds of additives attracted the attention of researchers in the last decades for functionalizing fibers. Some other methods like coating, exhausting, padding or other novel methods can be used for the same purpose. But in these methods, the functional effect is generally not durable enough against several times of washing and abrasion. Also, these methods usually require higher consumption of water and heat when compared to composite fiber production. As a result, in this work the effect of cross sectional modification and composite fiber production were combined in the same fiber. One of the most important functional properties which can be provided by composite fiber production is antibacterial activity. Only a few research papers were published on antibacterial additive doped polypropylene fibers. In this work cupric oxide (CuO) doped antibacterial composite polypropylene (PP) fibers having different cross sectional shapes (circular, trilobal and triangular) were produced and the effect of cross sectional shape and CuO on the antibacterial activity, structural and mechanical properties of the fibers were investigated for the first time. Cross sectional and longitudinal images of composite fibers were evaluated by using optical microscope and scanning electron microscope (SEM). As the released content of active agent is an important parameter for the activity, durability, environmental and health effect of the product, the copper release from the fibers into the water media was investigated by inductively coupled plasma optical emission spectrometry (ICP-OES). Thermal analysis results showed that PP/CuO composite filaments having three different cross sectional shapes can be produced without any significant changes on thermal behavior of fibers. With the increasing content of cupric oxide, tenacities of fibers slightly decreased. Cupric oxide particles also led to some crystallinity changes. All of the composite fibers showed good antibacterial activity against Gram-negative bacterium Escherichia coli.

Fibers by interfacial polyelectrolyte complexation – processes, materials and applications

Interfacial polyelectrolyte (polyion) complexation (IPC) is a process whereby fibers and capsules are formed through interactions at the interface of oppositely charged polymers. Since its discovery in the late 1990s, the IPC fiber process, in particular, has been investigated for various applications such as tissue engineering, drug delivery, flexible electronics and biosensing. The advent of the IPC fiber and process has been supported by its unique mechanism of formation that makes it amenable to encapsulation and functionalization. In this first review on IPC fibers, we consolidate the current knowledge of the IPC process, mechanism of fiber formation and fiber physical properties, while documenting the various polycation–polyanion pairs and encapsulants that have been used to date. We review the rapidly accumulating literature on IPC fibers for tissue engineering, describing how they have been used to release protein factors in a sustained manner, made into random or spatially well-defined scaffolds and decorated with appropriate functionalities and extracellular matrices in order to tailor the microenvironment for cell growth and function.

Oxidative Modification in Human Hair: The Effect of the Levels of Cu (II) Ions, UV Exposure and Hair Pigmentation.

Protein oxidative degradation is implicated in a wide range of deleterious effects. For human hair, this oxidative damage can lead to significant observable changes in fiber physical and visual properties. A redox proteomic approach was applied to map molecular modification in human hair proteins and correlate this modification with the abundance of copper (II) ions, the levels of UV exposure and the general level of hair pigmentation. An increase in oxidative modification was observed with increasing copper (II) ion levels, regardless of the pigmentation level. Significantly, increased protein oxidative modification was also observed to occur in both lightly and darkly pigmented hair tresses even in the absence of irradiation, albeit at lower relative levels. Modification levels increased with increased copper (II) ion concentration. This new finding indicates that the level of copper (II) ions in human hair plays a key role in mediating protein oxidation, with or without exposure to UV light. Overall, these results strongly suggest that minimization of the level of copper (II) ions in human hair will mitigate and/or slow protein oxidative modification and therefore lower overall hair damage.

Chemical composition and physical properties of dew- and water-retted hemp fibers

Hemp (Cannabis sativa L.), as a multipurpose crop, is attracting more and more attention due to its economic importance allied with its renewable and sustainable character. In Lithuania, farmers have been allowed to grow industrial hemp only since 2014, yet, the declared area under this crop was over 1000ha the same year. Hemp fibrous stem represent a source of industrial products but fiber extraction is limited to few methods, such as dew-retting (the most common) and water-retting. The aim of this study was to evaluate the effect of dew- and water-retting on the chemical composition and physical properties of hemp fibers obtained from different cultivars. Three replicated field experiment on eight hemp cultivars (Beniko (PL), Bialobrzeskie (PL), Epsilon 68 (FR), Fedora 17 (FR), Felina 32 (FR), Futura 75 (FR), Santhica 27 (FR), and USO 31 (FR)) were carried out during 2010–2011 in the Central Lowland of Lithuania. Hemp was sown (seeding rate 50kgha−1) at the beginning of May, and harvested when the first mature seed appeared (in September or October, depending on the year and cultivar). Dew- and water-retting were applied for fiber loosening. Fiber flexibility and fiber strength and hemicellulose, cellulose, and Klason lignin were determined in the extracted fiber to characterize it, physically and chemically.Three-way ANOVA was performed on the data to determine significance of the following factors: retting method, hemp cultivar, and harvest year. In all cases, the main constituent of hemp fiber was cellulose (the mean was close to 80% on dry matter of fiber basis). Lignin content consisted to an average of 11.2%. The F-test showed that retting method had a significant (P<0.01) influence on fiber chemical composition. Water-retted stems provided higher content of cellulose (81.7%), hemicellulose (6.32%), but lower content of lignin (10.2%) in fiber when compared with that of dew-retted fiber (78.4, 5.9, and 13.1%, respectively). Cellulose content also depended on cultivar. The best fiber quality was for cv. Beniko (high cellulose and low ash content, high fiber content, and high fiber yield). The year also impacted cellulose and lignin content. In 2011, fiber had significantly higher lignin content (13.4%) and lower cellulose content (78.4%) than in 2010. Extracted fiber and fiber physical properties (flexibility, strength) dependency on retting method or other factors was inconsistent. Retting methods applied to extracted fiber had significant effect on fiber strength but not on flexibility. Fiber strength depended also on cultivar but not flexibility. The year affected both physical properties (flexibility and strength). In conclusion, the retting method is important to get a high quality fiber in hemp.

Modeling Multi-Scale Carbon Fiber Supports for Thin Film Bioelectrodes

Carbon electrodes with their super electro-catalytic properties are commonly used in electrochemistry, especially in biomolecular redox reactions1. Electrospinning as a low cost, facile technique is applied to produce uniform carbon nanofibers between 150 nm and 1µm fiber diameter by pyrolyzing electrospun Polyacrylonitrile (PAN) fiber at 250°C and 1100°C. Varying the concentration of PAN in N,N-Dimethylformamide precursor solution changes the fiber diameter and leads to diversity in materials properties, such as surface area, void fraction and conductivity. These electrospun carbon nano fiber (ECNF) properties are characterized by SEM, BET, and four-point probe resistivity measurements. Thin film Os+/2+ mediated electron in hydrogel immobilized glucose oxidase layer is coated on either single micro fiber 2 or free - standing carbon nanofiber mats (Figure 1) to study the effect of carbon fiber physical properties on electron transfer in mediated redox hydrogel bioanode. Electron transport via redox polymer Os+/2+ is enhanced by reducing the average hydrogel film thickness with uniform distribution of small fiber of high surface area (<1.6E3 cm-1 surface area per volume). A transport model is developed to give more insight into these correlations and yield more understanding of electron transfer mechanism in thin film porous electrode. Figure 1

고감성 의류용 축열 니트소재의 물성

This paper investigated wear comfort property of heat storage knitted fabrics for high emotional garment. For this purpose, ZrC imbedded PET knitted fabric was prepared and various physical properties such as thermal, wicking and drying characteristics were measured. In addition, far-infrared emission characteristics of ZrC imbedded PET was analysed and tactile hand property and dye affinity of ZrC imbedded knitted fabric were also studied in comparison with regular and other commercial heat storage PET knitted fabrics. It was observed that Zr imbedded amount in the yarn was 19.29% by ingredient analysis and far-infrared emission energy was <TEX>$3.65{\times}10^2W/m^2$</TEX>, emissivity was 0.906 at the range of wavelength <TEX>$6{\sim}20{\mu}m$</TEX>. It was found that maximum heat flow (Qmax) of ZrC imbedded PET knitted fabric was lower than that of regular PET one and warmth keepability rate was higher than that of regular PET one, which means ZrC imbedded PET have heat storage property. Drying property of ZrC imbedded knitted fabric was better than that of regular PET one due to heat by far-infrared emitted from ZrC in the core of filament. It revealed that wicking property of the ZrC imbedded fabric was not influenced by far-infrared emission, but affected by fibre physical properties. Tactile hand property of ZrC imbedded knitted fabric was not influenced by imbedding ZrC in the filament but affected preferably by structure of knitted fabric. Dye affinity of ZrC imbedded PET knitted fabric was less influenced by dyeing temperature and time than regular PET knitted one.