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1.
In this study, the dimensional and some physical properties of plain knitted fabrics made from 50/50 bamboo/cotton blended
yarns are investigated. In order to see the differences and similarities, the results are then compared with those for similar
fabrics knitted from 50/50 conventional viscose/cotton and 50/50 modal/cotton blended yarns. Each fabric type was produced
with three different stitch lengths. After all fabrics were dyed under identical dyeing conditions, they were subjected to
dry and full relaxation treatments. For dimensional properties of fabrics, course, wale and stitch densities were measured.
Then, by calculating statistically best-fit lines passing both through the experimental points and the origin, dimensional
constants i.e. k values were predicted in terms of the fiber types. The result show that each fabric type knitted from bamboo/cotton, viscose/cotton
and modal/cotton blended yarns behaves in a similar manner. However, in both dry and fully relaxed states, the modal/cotton
knitted fabrics tend to have slightly higher k values than the bamboo/cotton and viscose/cotton knitted fabrics. For physical properties, fabric weight per unit area, thickness,
bursting strength, air permeability and pilling were evaluated. The results show that the weight, thickness and air permeability
values are independent of the fiber type. Plain knitted fabrics from modal/cotton blended yarns have the highest bursting
strength values. Plain knitted fabrics from bamboo/cotton blended yarns tend to pill less. 相似文献
2.
Ahu Demiroz Gun 《Fibers and Polymers》2011,12(2):258-267
The dimensional, some physical and thermal comfort properties of the plain knitted fabrics having modal viscose microfibers
in three different stitch lengths are investigated in comparison with the similar fabrics having conventional modal viscose
fibers. The fabrics made from microfibers and conventional fibers exhibit different dimensional properties. The stitch density
results and the dimensional constants calculated at the fully relaxed state reveal that the fabrics with microfibers tend
to have lower shrinkage tendency than those with conventional fibers. The statistical results show that the fiber type (or
fiber fineness) and the stitch length affect the some physical properties and all of the thermal comfort properties of the
fabrics significantly. The bursting strength values of the fabrics with microfibers are observed to be slightly higher than
those of the fabrics with conventional fibers. However, the difference between the bursting strength values of these fabrics
is found to be statistically unimportant. The fabrics with microfibers reveal lower thickness and air permeability and, higher
pilling tendency than those with conventional fibers. It is also observed from the thermal comfort results that the fabrics
made from microfibers have higher thermal conductivity, thermal absorptivity and maximum heat flux values and, lower thermal
resistance and thermal diffusivity values. Because of the higher thermal absorptivity and maximum heat flux values, the fabrics
from microfibers provide cooler feeling when compared with those from conventional fibers. 相似文献
3.
In this research work, behavior of flexural stiffness of core spun cotton spandex single jersey, 1x1 rib and interlock fabrics was studied under relaxation and machine washing treatments. Results are compared with similar fabrics made from 100 % cotton. Fabric weight density increased with the progression of treatments and it is proportionate to the fabric tightness factor (stitch length?1). Even though both types of fabrics had same machine set stitch lengths, cotton/spandex fabrics have shown the higher fabric weight densities than that of 100 % cotton fabrics. Although 1x1 rib and single jersey fabrics knitted with the same machine set stitch lengths, rib fabrics have given higher fabric weight densities than single jersey fabrics. Among the three knitted structures, interlock fabrics with higher machine set stitch lengths gave the higher fabric weights. Fabric stiffness and flexural rigidity have given higher values under the progression of treatments and it was found that higher values of stiffness have given by cotton/spandex knitted fabrics compared to their cotton fabrics. Fabric stiffness and flexural rigidity in wale direction were higher than that in course direction, but it is only observed in single jersey fabrics. However, 1x1 rib and interlock fabrics have shown an opposite behavior. It was also observed a positive correlation between TF (i.e.: stitch length?1) and bending length/flexural rigidity in both fabric types. Lower flexural rigidities reported with single jersey structures and highest values gave with interlock structures of cotton/spandex and cotton fabrics. 相似文献
4.
C. N. Herath 《Fibers and Polymers》2013,14(8):1339-1346
In this research work, air permeability variations of core spun cotton/spandex single jersey and 1×1 rib knitted structures were studied under relaxation treatments. Results are compared with similar fabrics made from 100 % cotton material. Even though cotton/spandex fabrics knitted with same stitch lengths, their structural spacing and stitch densities vary with the progression of treatments. Similar behavior was also observed with 100 % cotton knitted structures. Under higher machine set stitch lengths (i.e., lower fabric tightness factor), higher structural spacing and lower stitch densities were resulted and those variations significantly affected on the air permeability variations of knitted structures. 1×1 rib knitted structures showed significantly higher air permeability than single jersey structures and it is more prominent with cotton rib structures. However, cotton/spandex 1×1 rib and single jersey structures have not showed such significant deviations. Air permeability of cotton/spandex and 100 % cotton rib and single jersey knitted structures decreased with lower machine set stitch lengths (i.e., at higher fabric tightness factors). There was a correlation with fabric tightness, air permeability, areal density and fabric thickness such as knitted fabrics became tighter, their weight and thickness were higher, while their air permeability was lower. Thus, fabric areal density and fabric thickness are positively correlates to machine set stitch length?1 (fabric tightness factor). Air permeability of a knitted structure depends on material type, knitted structure, stitch length, relaxation treatment, structural spacing and stitch density. 相似文献
5.
Effect of machine washing on structural behavior of core spun cotton/spandex interlock fabrics made with high, medium and
low tightness factors has been investigated. Results are compared with those for similar fabrics knitted from 100 % cotton.
Structural behavior of cotton/spandex and cotton fabric samples was observed under full relaxation and washing treatments
up to 10th cycle. Based on these data, dimensional constants (U-values) were predicted under 95 % significance level. Higher
course and wale densities, stitch densities, dimensional constant values, linear and area dimensional shrinkages are reported
with cotton/spandex interlocks. After treatment levels, cotton/spandex showed the dimensional constants with lesser CV %.
With increasing fabric tightness, decreasing of length shrinkages and area shrinkages and increasing of width shrinkages are
reported in cotton/spandex interlock structures. Cotton/spandex interlocks showed longitudinally and highly deformed shapes
after treatments. Fabric tightness affects significantly on structural behavior of cotton/ spandex and cotton structures during
relaxation. 相似文献
6.
Youngmi Park 《Fibers and Polymers》2016,17(3):477-483
The properties of moisture transfer and the comfort of mesh-structured fabrics with various knit compositions and properties were investigated. The comfort effects of the double knitted fabrics combined with different cross-shaped fibers composed of dyeable-polypropylene (PPd) and regular polyester (PET) double-knitted fabrics were studied. A series of PET, PPd, Coolmax® (Cm) with single knitted fabrics and PPd/Cm with double knitted fabrics were evaluated to determine the physical properties and wearing performance for comfortable clothing. To compare the structural properties involving the vapor transfer of 4 types of fabrics with different fiber compositions, fiber types, weights, and thicknesses, the surface structure and pore characteristics were evaluated by scanning electron microscopy and a capillary flow porometer. The properties of moisture transfer were tested using vertical wicking and gravimetric absorbent testing system (GATS). In addition, the comfort performance measured by the thermal insulation value (Rt) and moisture permeability index (im) with a thermal manikin in a conditioned walk-in environmental test chamber was predicted. The result showed that the PPd/Cm sample has potential applications as good comfort fabric materials. 相似文献
7.
Vildan Sülar Eren Oner Gökberk Devrim Mehmet Aslan Burçin Eser 《Fibers and Polymers》2016,17(12):2085-2094
Biodegradable products are parts of a natural cycle. The biopolymers and the fibers that can be produced from them are very attractive on the market because of the positive human perception. Therefore, PLA being a well known biodegradable fiber and some conventional fibers were selected for the current study to examine the differences between them and to emphasize the importance of biodegradability beside fabric performance. 14.8 tex (Ne 40/1) combed ring spun yarns produced from biodegradable fiber PLA, new generation regenerated fibers Modal and Tencel, synthetic and blends 50/ 50 % cotton/polyester and 50/50 % viscose/polyester, polyester were selected as yarn types and by using these yarns, six knitted fabrics were produced and some important yarn and fabric properties were compared. In this context, moisture and the tensile behavior of yarns and pilling, bursting strength, air permeability and moisture management properties of the test fabrics are discussed. 相似文献
8.
The effect of blend percentage on comfort and handle related properties of fabrics made from polyester/viscose blended air-jet
textured yarn weft were studied and the results were compared with fabrics made from polyester/viscose ring-spun yarn wefts
of similar linear densities. It is observed that with increase in polyester content in the blend, the air permeability and
water vapour permeability reduces whereas thermal resistance, transverse wicking and shear rigidity increases both in ring-spun
yarn and textured yarn fabrics and bending rigidity increases in textured yarn fabrics. Textured yarn fabrics exhibit lower
air permeability and extensibility, higher thermal resistance, relative water vapour permeability, transverse wicking values
and bending rigidity as compared to the ring-spun yarn fabrics. 相似文献
9.
10.
This paper discusses the inter fiber cohesion in man made and blended yarns. The fiber parameters such as fiber length and fineness influence the cohesion. Studies have been focused on polyester and viscose spun yarns. Though polyester and viscose yarns show similar trend in cohesion, viscose yarns exhibit better cohesion due to their serrated cross section. Studies on the effect of blend proportion of polyester cotton and polyester viscose yarns reveal that increase of polyester and viscose in the respective blends improve the inter fiber cohesion. 相似文献
11.
Moisture management behavior is a vital factor in evaluating thermal and physiological comfort of functional textiles. This
research work studies functional 3 dimensional (3D) warp knitted spacer fabrics containing high-wicking materials characterized
by their profiled cross section. These spacer fabrics can be used for protective vest to absorb a user’s sweat, to reduce
the humidity and improve user’s thermal comfort. For this reason, different 3D warp knitted spacer fabrics were produced with
functional fiber yarns in the back layer of the fabric (close to the body) and polyester in the front and middle layers (outer
surface). Comfort properties such as air and water vapor permeability and wicking and other moisture management properties
(MMP) of different fabric samples were measured. It is demonstrated that by using profiled fibers such as Coolmax fiber, moisture
management properties of spacer fabrics can be improved, enabling them to be use as a snug-fitting shirt worn under protective
vests with improved comfort. 相似文献
12.
This paper presents the low stress mechanical properties of plain fabrics woven from cotton, bamboo viscose and cotton-bamboo viscose blended yarns. Three blends (100 % cotton, 50:50 cotton-bamboo and 100 % bamboo) were used to produce three yarn counts (20, 25 and 30 Ne). Each of these yarns was used to make fabrics with different pick densities (50, 60 and 70 picks per inch). It was found that bending rigidity, bending hysteresis, shear rigidity, shear hysteresis and compressibility is lower for bamboo fabrics as compared to those of 100 % cotton fabrics. On the other hand, extensibility, tensile energy and compressional resilience are higher for 100 % bamboo fabrics than 100 % cotton fabrics. Higher pick density increases linearity of load-elongation curve, bending rigidity, shear rigidity and compressional resilience. Shear and bending rigidities show very good correlation with the respective hysteresis values. 相似文献
13.
Spirality is one of the major potential problems in knitted fabrics and garments. It affects the aesthetics and physical properties
of the garment produced, such as the seam displacement, shape retention, pattern distortion and sewing difficulties. In this
paper, a comparative study has been carried out to evaluate the physical performance of 100 % cotton knitted fabrics and garments
produced by the modified low twist and conventional ring yarns through the actual wearing and washing trials. Experimental
results showed that the properties of side seam displacement, fabric spirality, dimensional stability and skewness change
of the T-shirts and sweaters made by the modified single yarns are comparable to those of garments made from the control plied
yarns but much improved when compared to those from the control single yarns. In addition, the pilling resistance and bursting
strength of the knitted fabrics made by the modified single yarns can still maintain a reasonably high level at a low yarn
twist. 相似文献
14.
Muhammet Uzun 《Fibers and Polymers》2013,14(10):1714-1721
The paper focuses on the application of ultrasonic energy in textile laundering. In recent years, there has been an increasing interest in ultrasonic energy application in textile industry; however, the effect of ultrasonic laundering on the thermophysiological properties of knitted fabrics has not been studied yet. This study was conducted by using polylactic acid (PLA), cotton, polyethylene terephthalate (PET), and poly acrylic (PAC) fibres containing yarns and their blends. Knitted fabrics, single pique, were made from these yarns by using weft knitting machine. The fabrics were washed ten times for 15 and 60 minutes under 40 °C by using conventional and ultrasonic washing methods. The main aim was to determine the effect of washing methods on the thermophysiological properties of the fabrics. It is also aimed to analyse and evaluate the thermophysiological properties of the PLA fabrics. The incorporation of 100 % PLA and cotton/PLA yarns into single pique knitted fabrics has been attempted to produce for the first time and studied their thermal comfort properties. The results show that the washing processes have a critical importance for the tested fabrics in terms of thermal conductivity, thermal resistance, thermal absorbtivity, water vapour permeability, and heat loss. It has been also demonstrated that the fabric cleaning by using ultrasonic method enhanced the properties of tested fabrics such as thermal conductivity and % recovery. It was also noted that 15 minutes ultrasonically washed fabrics had significantly lower thermal resistance as compared to conventionally washed fabrics. 相似文献
15.
A series of cotton knitted fabrics was produced and finished according to three different recipes in order to compare the changes of their heat resistances. The heat resistance was measured using the sweating guarded hotplate. Measurements were carried out on one layer of produced knitted fabrics, as well as on two layers of fabrics. The results indicated significant influence of all carried finishing treatments to the decrease of heat resistance of knitted fabrics. It was shown that the high influence of finishing treatment to the total heat transfer trough fabric remains if the fabric is worn with additional knitted fabric layer. The presented results and performed statistical analysis indicated significant effect of finishing treatments to the changes of fabric parameters and furthermore to the changes of heat resistance what directly affects the total thermophysiological comfort of knitwear. 相似文献
16.
This study examined the flame retardant, anti-static, and wear comfort properties of woven fabrics from two types of yarns composed of modacrylic, FR-rayon, cotton, and anti-static PET fibers. The FR-rayon-blended modacrylic fabric mixed with anti-static PET fibers exhibited better flame-retardant and anti-static properties than those of the cotton-blended modacrylic fabric. In addition, the absorption and drying properties of the FR-rayon-blended modacrylic fabric were superior to those of the cotton-blended modacrylic fabric. The thermal conductivity of the FR-rayon-blended fabric was lower than that of the cotton-blended one, whereas the water vapor permeability was slightly higher than that of the cotton-blended one. These wear comfort properties of the FR-rayon-blended fabric were attributed to the micro-pores and longer fiber length of the FR-rayon fibers, as well as their yarn and fabric structural parameters. This study suggests that FR-rayon-blended modacrylic fabric has better flame-retardant and anti-static properties in both twill and rip weaves with good warmth keepability, and higher water and vapor transmission properties than cotton-blended one. In addition, the FR-rayon-blended modacrylic clothing exhibited a better wear comfort feel than the cotton-blended one due to the lower microclimate humidity. This means that FR-rayon-blended modacrylic fabric makes it more comfortable to wear than cotton-blended one. 相似文献
17.
In this study, dimensional characteristics of core spun cotton/spandex interlock structures with high, medium and low tightness
factors were studied under dry-, wet-, and full relaxation conditions. Results are compared with those for similar fabrics
knitted from 100 % cotton. Dimensional characteristics of samples of core-spun cotton/spandex and cotton are measured by considering
the changing of course-, wale- densities and stitch densities under dry, wet and full relaxation conditions. Based on these
data, dimensional constants (U-values) were predicted under 95 % significance level. Higher U-values are reported with cotton/spandex
interlocks than 100 % cotton and under full relaxation, cotton/spandex shows the U-values with lesser CV%. Stitch density
growth is linearly correlated with tightness factor for both interlock material structures. Excellent resiliency property
of cotton/spandex yarns increases tightness factors at machine off state and during relaxation states. Cotton/spandex interlock
structures show more prominent co-relationship with their tightness factors on their dimensional parameters. 相似文献
18.
黄麻／棉织物服用性能探讨 总被引：3，自引：1，他引：3
本文通过试验测定了黄麻／棉织物的服用性能，并与苎麻／棉，涤／棉，纯棉等织物的服用性能进行比较，结论表明黄麻／棉织物作为服用织物是可行的。 相似文献
19.
Murata vortex spinning system is based on the air jet spinning system. The vast majority of previous works deal with the properties
of vortex spun (VS) yarn and the spinning system. In this study, we investigated knitted fabrics from VS yarn in comparison
with fabrics from ring (RS), compact (CS) and open-end rotor (OES) spun yarns made from viscose. The effect of yarn spinning
system on dimensional and physical properties of knitted fabrics was explained with specific attention to fabrics from VS
yarn. Shrinkage of fabrics from VS yarn has the lowest at widthwise direction, while having the highest at lengthwise direction.
It is shown that the order of fabric spirality and twist liveliness for yarns from different spinning systems are quite similar.
However, relation between loop shape factor and angle of spirality is inconsistent. Angle of spirality of fabrics from VS
yarn is higher than fabrics from OES yarn, but lower than that of others. The bursting strength of fabrics from VS yarn is
lower than that of those from RS and CS yarns and higher than that of those from OES yarn. From this study, it is also evident
that fabrics from VS yarn have the lowest pilling tendency and highest resistance to abrasion. 相似文献
20.
Textile sound absorbents are getting more and more popular on the market as noise reduction is a major requirement for human comfort today. In this paper we focus on a new textile material for sound absorption, by investigating the acoustic characteristics of nanofibers. Through impedance tube method we measured the sound absorption coefficients of multiple layers of nanofiber webs and compared those with microfiber materials per fabric weight. We also examined the effect of layers of nanofiber webs on regularfiber knitted fabric on sound absorption. The test results showed that the sound absorption coefficients of nanofiber layers were superior that of microfiber fabrics in the frequency range 1000–4000 Hz. In this range, the sound absorption of nanofiber webs improved with numbers of layers. Also, adding nanofiber web plies to regularfiber fleece increased the sound absorption coefficient with 85 % at 4000 Hz. From our results we could observe differences in the sound absorption coefficients between two test methods, which are higher absorbance coefficients through the reverberation room method than impedance tube method. 相似文献