A Study on Frictional Characteristics of Woven Fabrics (original) (raw)
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Frictional characteristics of woven suiting and shirting fabrics
Indian Journal of Fibre & …, 2007
Frictional characteristics of woven shirting and suiting fabrics with different blends and constructional parameters have been studied. Fabric-to-metal surface and fabric-to-fabric frictional characteristics in both warp-warp and weft-weft directions have also been studied. It is observed that the normal load and the frictional force follow the logarithmic relationship for all the fabrics. The nature of fabric friction has been characterized by different parameters, like ratio of frictional force to normal load, friction index, friction parameter and their ratio. Fabric-to-metal friction is found to be less sensitive to fabric morphology and rubbing direction, whereas the fabric-to-fabric friction is highly sensitive to these factors. Fabric-to-fabric friction has been affected by lot of factors, like type of fibre, type of blend, yarn structure, fabric structure, crimp, compressibility, etc. For all the fabrics, the kinetic friction is always lower than the static friction at different levels of normal load and the F/N ratio reduces consistently with the increase in normal pressure.
Journal of Engineered Fibers and Fabrics, 2012
Frictional characteristics of woven fabrics can determine smoothness and softness values of the fabric. Moreover different environmental conditions can leads to change the properties of the weaves. In this paper, we studied the effect of temperature and relative humidity variations on the frictional properties of cotton and polyester fabrics. Plain woven fabrics were produced with polyester warp yarn and two different weft yarns (cotton and polyester). Each fabric was examined in various temperatures and relative humilities; then the frictional forces measurement was carried out on the fabrics in warp over warp direction. The results show that there is a statistically significant difference between the frictional parameters. This difference relates to the type of fiber material (weft yarns), temperature, and relative humidity. In addition, the data reveal that cotton fabrics have more static and kinetic forces than polyester fabrics in all environmental conditions. Moreover, polyest...
Frictional characteristics of woven and nonwoven wipes
Fibers and Polymers, 2005
We have examined the fabric-to-metal surface and fabric-to-fabric frictional characteristics (in both warp and weft directions) of a series of fabrics containing 100% polyester, 100% viscose, and P/C & P/V blends with different blend proportions. It has been observed that the normal load and the frictional force follow a logarithmic relationship for all the fabrics. The nature of fabric friction is characterised by different parameters such as the F/N ratio, and the values of n, k and k/n. Fabric-to-metal friction is found to be less sensitive to fabric morphology and rubbing direction, whereas fabric-to-fabric friction is highly sensitive to these factors. Fabric friction has been affected by many factors such as the type of fibre, type of blend, blend proportion, yarn structure, fabric structure, crimp and crimp height, compressibility, etc. In P/C and P/V blended fabrics, the frictional force increases as the cellulose fibre component increases.
Roughness and frictional properties of cotton and polyester woven fabrics
The roughness and frictional properties of cotton and polyester fabrics and relationship between these properties have been investigated and compared. Two sets of test samples comprising nine cotton and twelve polyester fabrics have been woven by systematically changing parameters such as weave type, weft setting and linear density of weft yarn. The fabric roughness measurements are conducted by using a new surface roughness tester for textile applications and the fabric friction measurements are performed with a friction attachment adaptable to a tensile tester. All the results are statistically evaluated in relation to the structural parameters of the test fabrics by using multivariate variance analyses. The relationship between roughness and frictional properties is examined by correlation analyses. For all the test fabrics, it can be noted that an increase in weft setting causes decrease in fabric roughness values for every weave type and this tendency is in accordance with the fabric friction results. When the relationships between the frictional and roughness values are examined, statistically significant and high correlations are determined for both of the cotton and polyester fabrics.
Effect of Fabric Structure and The Inter Yarn Friction on Fabric Shear Properties
he frictional behavior of fibrous assemblies greatly affects their processing, properties, and the mechanical properties of the final products. The importance of friction has led to extensive investigations about the yarn nature determining fabric properties performance. The combined effects of yarn tensile strength, inter-yarn friction, will affect the probabilistic impact response. Moreover, frictional properties of fabrics are determined by yarn friction and fabric structure. The effects of fabric structure on yarn friction have been evaluated by varying weaves.
Design of a New Instrument for Measuring Frictional Properties of Woven Fabrics
International Journal of Engineering, 2011
Friction measurement is one of the important and interesting problems in the study of handle properties of fabrics. Different methods have been developed for measuring friction, such as sliding, Kawabata Evaluation System (KES) and cyclic testing. In this research, considering the possibilities of varying conditions in measuring friction, a new instrument is used in which the bottom surface of fabric can be moved and the top slider is kept fixed in order to prevent slider vibrations. In this method, the force inserted by an extensible yarn connected to the trolley standing on four very smooth bearings was measured. The result of experiments confirmed 7.6% increase in correlation coefficient in the dynamic friction region for nine different test samples and about 4.6% reduction in coefficient of variation compared to the sliding type.
REVIEW ON MEASUREMENT AND ANALYSIS OF FRICTION ON TEXTILES
Surface texture of organisms attracts more and more interests of researchers. On one hand, the surface texture of various organisms is crucial for their adaptation to the natural environment. On the other hand, numerous excellent tribological properties of the nature inspire people to design mechanical structures and surface textures that could increase or reduce friction to be used in industries. It is the surface property of the fibre when two solid surfaces slide against each other. When we talk about fiber friction then it is very necessary because it is the force that holds together the fibre in a spun yarn and the interlacing threads in a fabric. It is the surface property of the fibers when two solid surfaces slide against each other. For example if we rub silk fabric with itself or any other type of material static charge and heat energy is produced due to fiber friction. Frictional properties of fabrics are determined by yarn friction and fabric structure. The effects of fabric structure on fabric friction have been evaluated by varying weaves, type of knits, and orientation of fibres in nonwovens. The frictional resistances within a yarn (inter-fibre friction) and between yarns (inter-yarn friction) influence fabric friction, fabric bending rigidity, fabric strength, creasing, abrasion resistance, tear resistance, and fabric hand and comfort-even though the quantitative measurement of the magnitude of effects of friction on other properties is likely to be difficult. Friction theories adopted for textiles explain that the friction is affected by their surface properties and their bulk properties. The term " skin friction " refers to the friction between in vivo human skin and an arbitrary contact material. Skin friction involves the interaction of the skin and the contact material, and consequently it depends on the properties of the skin, the contact material and its properties, the parameters of the contact between the materials and the environment surrounding the materials. Skin friction research is actually on the interface between tribology, materials science, dermatology, Product development and rehabilitation medicine.
Static and kinetic frictional characteristics of staple fibres and woven fabrics
2007
An instrumental has been developed for measuring static and kinetic frictional characteristics of staple fibres and fabrics. The influence of fibre length and fineness on static and kinetic frictional characteristics of polyester and viscose staple fibres has also been studied. A comparative study has been carried out to ascertain the difference in frictional forces measured by an attachment fitted with Instron tensile tester. The developed instrument is also used to study the frictional characteristics of acrylic staple fibres at different levels of finish application. A wide variation in frictional characteristics is observed among different varieties of cotton, even within same variety from different place of origin. It is also observed that warp density and fabric thickness have good correlation with static and kinetic frictional properties of both warp-on-warp and weft-on-weft motions.
Influence of the dry woven fabrics meso-structure on fabric/fabric contact behavior
Journal of Composite Materials, 2012
The first stage of the RTM process concerns the preforming of the part. During the preforming of multilayered reinforcements, frictions between the plies occur. An experimental device designed to analyse the ply/ply, ply/tool and yarn/yarn frictions has been set up. Specific contact behaviour for ply/ply friction is directly related to shocks taking place between overhanging yarns of each samples. Within the signal, two particular periods can be exhibited. This work shows for four different architecture woven fabrics that the two periods are directly related to the meso architecture of the studied woven fabrics and more precisely to the characteristics of the fabric unit cell.