Crimson Publishers- Bursting Strength and Extension for Jersey, Interlock and...CrimsonpublishersTTEFT
Bursting Strength and Extension for Jersey, Interlock and Pique Knits by Usha Chowdhary*, Mohammed Maruf Adnan and Chin-I Cheng in Trends in Textile Engineering & Fashion Technology
Characterization of Chemical and Physical Properties of Palm Fibers msejjournal
Natural fibers like palm fibers provides new hope for researchers to compete with hazardous synthetic
fibers with its excellent chemical and physical properties This work investigates the extraction of various
fibers that are available from various portions of the palm tree and to characterize its chemical and
physical properties. Also the results were compared with other natural fibers.
Electrical properties of textile fiber NazmulAhshan
Textile materials have the inherent ability to store electric charges. “Electrifiability” means the ability
of a clothing to generate and retain an electrostatic field of significant strength for a relative long time.
The interest for investigation of the electrical properties of the fibres was generated with the use of
fibres as insulating materials. Later, the resistance and capacity methods were used in instruments to
determine the moisture content and the irregularity of the fiber assemblies. Applications of conductive
textiles are more and more numerous in technical areas and cater to functions such as heating,
conduction, or EMI shielding, prevention of static charges build-up.
Most of the textile and plastic materials are electrical insulators. They accumulate electrostatic charge,
which causes problems such as severe shock, fire, dust accumulation, etc. during processing. The
electrical conductivity is required to dissipate the charges and use of fibres blended with conductive
type of fibres prevents such risk. Low and limiting electrical conduction is required in many practical
applications such as electromagnetic shielding, electrostatic elimination, conveyor belts, aviation/space
suits, dry filtration, carpets etc. For this purpose, various products having reasonably good electrical
conductivity are required. This can be obtained by incorporating metal fillers or coating with some agent.
The textile materials being flexible and easily workable are the most preferred one in such cases.
Crimson Publishers- Bursting Strength and Extension for Jersey, Interlock and...CrimsonpublishersTTEFT
Bursting Strength and Extension for Jersey, Interlock and Pique Knits by Usha Chowdhary*, Mohammed Maruf Adnan and Chin-I Cheng in Trends in Textile Engineering & Fashion Technology
Characterization of Chemical and Physical Properties of Palm Fibers msejjournal
Natural fibers like palm fibers provides new hope for researchers to compete with hazardous synthetic
fibers with its excellent chemical and physical properties This work investigates the extraction of various
fibers that are available from various portions of the palm tree and to characterize its chemical and
physical properties. Also the results were compared with other natural fibers.
Electrical properties of textile fiber NazmulAhshan
Textile materials have the inherent ability to store electric charges. “Electrifiability” means the ability
of a clothing to generate and retain an electrostatic field of significant strength for a relative long time.
The interest for investigation of the electrical properties of the fibres was generated with the use of
fibres as insulating materials. Later, the resistance and capacity methods were used in instruments to
determine the moisture content and the irregularity of the fiber assemblies. Applications of conductive
textiles are more and more numerous in technical areas and cater to functions such as heating,
conduction, or EMI shielding, prevention of static charges build-up.
Most of the textile and plastic materials are electrical insulators. They accumulate electrostatic charge,
which causes problems such as severe shock, fire, dust accumulation, etc. during processing. The
electrical conductivity is required to dissipate the charges and use of fibres blended with conductive
type of fibres prevents such risk. Low and limiting electrical conduction is required in many practical
applications such as electromagnetic shielding, electrostatic elimination, conveyor belts, aviation/space
suits, dry filtration, carpets etc. For this purpose, various products having reasonably good electrical
conductivity are required. This can be obtained by incorporating metal fillers or coating with some agent.
The textile materials being flexible and easily workable are the most preferred one in such cases.
Cotton is a natural fibre available easily and abundant quantity. It is a most suitable fibre for textile spinning & clothing due to it’s good spinnability & human friendly characteristics. As cotton is a natural fibre hence it’s properties also affected with several other factors which create variation in fibre properties, these variations also affect spinning processes & it’s products Quality in multi dimensions. Each fibre characteristic impact individually and collectively on spinning process or at ultimate product quality. Revolutionary changes observed in last two decade in the field of spinning machineries where processing speeds greatly increased to enhance production rate. Not only production rate of spinning machines increased but speeds of it’s downstream processes also increased simultaneously which requires better quality of yarn for smooth process and without any interruption to get the maximum efficiency. Hence now it is most important to co-relate fibre properties with respect to it’s consumer process competency. In this article we will discuss the different cotton properties and it’s impact on spinning process and product quality in present prospective and will try to minimize the impact of poor fibre properties on process or product Quality through better Mixing plan selection.
The following terms & definitions are used to describe and explain cotton fiber maturity.
Circularity :
The degree of thickening which is calculated by the cross sectional area of the fiber wall divided by the area of a circle of the same perimeter.
Theta :
Average circularity of the matured fibers also described as the degree of thickening.
Fineness (mtex) : Average fiber fineness (weight per unit length) in millitex. 1000 meters of fibers with a mass of 1 milligram equals 1 millitex.
IFC (%) :
Immature fiber content in percent. Percentage of fibers with less than 0.25 circularity. The lower the IFC% the better the fiber is for dyeing.
Maturity Ratio :
Maturity Ratio is the ratio of fibers with a 0.5 (or more) circularity ratio devided by the amount of fibers with a 0.25 (or less) circularity. The higher the maturity ratio, the more mature the fibers are and the better the fibers are for dyeing.
This is the presentation contains all types of essentials & verse knowledge about Fibre, Yarn & Fabric.
Textiles Professionals & Students might get knowledge from these slides.
EXPERIMENTAL INVESTIGATIONS OF MECHANICAL PROPERTIES OF NATURAL HYBRID FIBER,...Journal For Research
Natural fibers are used to reinforce the materials. Many types of natural fibers are investigated for use in plastics, including flax, hemp, jute, sisal and banana. Hybrid fibers have the highest strength they are renewable resources and have marketing appeal. The waste product is used to prepare fiber reinforced polymer composites for useful process. Here the commonly 35% fiber and 65% polymer used to fabricate material in various ratios. Application of composite materials to structures has presented work focused the fabrication of polymer matrix composites by using natural fibers like flax, banana and sisal which are abundant nature in desired shape. With the help of various ASTM standards of patterns and calculating its material characteristics by conducting tests like flexural test, tensile test, impact test, and their results are measured on sections of the material and make use of hybrid natural fiber reinforced polymer composite material.
Cotton is a natural fibre available easily and abundant quantity. It is a most suitable fibre for textile spinning & clothing due to it’s good spinnability & human friendly characteristics. As cotton is a natural fibre hence it’s properties also affected with several other factors which create variation in fibre properties, these variations also affect spinning processes & it’s products Quality in multi dimensions. Each fibre characteristic impact individually and collectively on spinning process or at ultimate product quality. Revolutionary changes observed in last two decade in the field of spinning machineries where processing speeds greatly increased to enhance production rate. Not only production rate of spinning machines increased but speeds of it’s downstream processes also increased simultaneously which requires better quality of yarn for smooth process and without any interruption to get the maximum efficiency. Hence now it is most important to co-relate fibre properties with respect to it’s consumer process competency. In this article we will discuss the different cotton properties and it’s impact on spinning process and product quality in present prospective and will try to minimize the impact of poor fibre properties on process or product Quality through better Mixing plan selection.
The following terms & definitions are used to describe and explain cotton fiber maturity.
Circularity :
The degree of thickening which is calculated by the cross sectional area of the fiber wall divided by the area of a circle of the same perimeter.
Theta :
Average circularity of the matured fibers also described as the degree of thickening.
Fineness (mtex) : Average fiber fineness (weight per unit length) in millitex. 1000 meters of fibers with a mass of 1 milligram equals 1 millitex.
IFC (%) :
Immature fiber content in percent. Percentage of fibers with less than 0.25 circularity. The lower the IFC% the better the fiber is for dyeing.
Maturity Ratio :
Maturity Ratio is the ratio of fibers with a 0.5 (or more) circularity ratio devided by the amount of fibers with a 0.25 (or less) circularity. The higher the maturity ratio, the more mature the fibers are and the better the fibers are for dyeing.
This is the presentation contains all types of essentials & verse knowledge about Fibre, Yarn & Fabric.
Textiles Professionals & Students might get knowledge from these slides.
EXPERIMENTAL INVESTIGATIONS OF MECHANICAL PROPERTIES OF NATURAL HYBRID FIBER,...Journal For Research
Natural fibers are used to reinforce the materials. Many types of natural fibers are investigated for use in plastics, including flax, hemp, jute, sisal and banana. Hybrid fibers have the highest strength they are renewable resources and have marketing appeal. The waste product is used to prepare fiber reinforced polymer composites for useful process. Here the commonly 35% fiber and 65% polymer used to fabricate material in various ratios. Application of composite materials to structures has presented work focused the fabrication of polymer matrix composites by using natural fibers like flax, banana and sisal which are abundant nature in desired shape. With the help of various ASTM standards of patterns and calculating its material characteristics by conducting tests like flexural test, tensile test, impact test, and their results are measured on sections of the material and make use of hybrid natural fiber reinforced polymer composite material.
Handle of cotton: wool knitted khadi fabriciosrjce
Hand of cotton: woolhand knitted fabrics has been reported in this study. Indian crossbred wool
(Rambouillet and Chokla) was blended with cotton (Mech I) in three different ratios (10-90%, 20-80% and 30-
70%) and yarns were prepared on hand spinning system.Knitted fabric samples were constructed on 10-12
gauge, flat bed hand knitting machine. Fabric handle was objectively assessed by SiroFAST.
Comparison of some of Denim Fabric Properties produced with different Weftijsrd.com
The aim of this study was to asses and compares the some of denim fabric properties using three different weft yarns. Threads per inch and weft type are some of the most important parameters that affect both weaving performance and fabric property. Experimental studies were conducted by weaving fabrics with same warp yarn i.e. 9'OE Rotor yarn. Three different weft yarns are (1) Excel (2) Cotton (3) Polyester. These all are same count. Denim fabrics was woven in three different twill weave (1) 2/1 (2) 3/1 (3) 2/2. It was found the weave type and weft type affects fabric properties. The weave and weft yarn has great impact on the some of comfort related properties also i.e. air permeability, tensile strength, tear strength, and seam slippage, bursting strength.
Study of Performance of Hybrid yarns (Hemp/ Polypropylene/ Glass) Woven Reinf...IJERA Editor
This study examines the performance of reinforcements of 100 tex hemp yarns and hybrid yarns reinforcements with same hemp yarns and glass fibres’ (136 Tex) in warp direction (25 % or 50 %) interwoven with hemp yarns. The industrial loom CTБ-175 and craftsman’s loom, plain weaving technique for production of reinforcements with surface density in range of 91-246 g/m2 were used in the production. Tensile strength of hemp reinforcement on warp direction is 241.7N-279.8N and tensile modulus 218.48MPa-271.24MPa.The measurement of fabric thickness and physical-mechanical properties of reinforcements were carried out according to ISO 5084:1996 and LVS EN ISO 13934-1-2001 standards. One and two layer composites of woven reinforcements of hemp and polypropylene yarns were produced with Laboratory Press LP_S_50/SASTM. The surface density of one layer composite is 311.2 g/m2 and 608.4 g/m2 of two layers composite. The tensile strength of same composites is 303.1N and 599.5N, the tensile stress is 35.66 MPa and 40.65 MPa. The elastic modulus of one layer composites is 908.2 MPa and 1152.5MPa for two layers composite. The mechanical properties of composites were established according to ISO 527-5:2009 standard.
6. Cotton
Major source of natural fiber
“White Gold” – soft fluffy
staple fibers
Significant economic impact
worldwide
4th largest crop in USA
cropsoilandmore.com
7. Types of Cotton
New world cotton Old world cotton
Tree cotton – G. arboreum
Levant cotton – G. herbaceum
Upland cotton – G. hirsutum
Pima cotton – G. barbadense
cotton.org
16. Fiber color
Fiber quality
Fiber length Fiber fineness Fiber strength
Other Traits
mavensphotoblog.comdoa.go.th cottonindia.com cirad.com environmentalleader.com
17. Fiber Length
Long fibers make full and even yarns.
Long fibers reduce hairiness in yarns.
cottonpromotion.com studyblue.comtextilefabric.com
Longer fibers are desirable in cotton industry.
22. Negative Association Between
Yield and Fiber Quality
2.65
2.85
3.05
3.25
3.45
3.65
Length(cm)
1,000 2,000
Kg/sq.km
260
280
300
320
360
340
380
400
1,000 2,000
lbs/acre
Yield and fiber length Yield and fiber strength
Strength(KNmKg-1)
US 1999-2009 US 1999-2009
Clement et al. 2012
Kg/sq.km
23. Complex Nature of the Traits
Multigenic
Small additive effects
Genes interact
Influenced by the environment
specialityserpents.comtulane.eduwordpress.comestrellamountain.com
28. Clement et al., 2012
1,000 2,000 3,000
Kg/sq.Km
2.65
2.85
3.05
3.25
3.45
3.65
Length(cm)
Yield and fiber length
US
1999-2009
Australia
2004-2009
Opportunities
Linkage can be broken
30. Opportunities
Negative association between yield and fiber quality
Positive association between fiber
length and fiber strength
Genetic complexity of the trait
Novel tools and techniques are
available
31. Opportunities
Genetic markers help to dissect complex traits
Next exit
Dwarf Gene
2 cM
Whole genome sequence available
Gossypium raimondii Gossypium hirsutum
specialneeds.com cicr.com wordpress.com wikipedia.org
32. Opportunities
Negative association between yield and fiber quality
Positive association between fiber
length and fiber strength
Genetic complexity of the trait
Novel tools and techniques are
available
Narrow genetic diversity of cultivated cotton species
More than 50 different species (wild
and cultivated) in Gossypium genus
37. Objectives
Explore exotic cotton accessions to increase
the genetic base of cultivated cotton.
Evaluate the effects of exotic genotypes on
fiber quality traits.
Evaluate the effects of different genetic
backgrounds on fiber quality traits.
47. Ongoing and Future Works
Genotyping of the populations
QTLs and/or alleles identification
Correlating genotypic and phenotypic data
Preparation of genetic maps
Advancing populations for further selection
49. Expected Outcome
Identification of QTLs governing fiber quality
traits.
Mapping of the QTLs to the existing genetic
map of cotton.
50. Summary
Exotic lines introduce traits of value to the
cultivated gene pool.
Cotton is an important fiber crop.
Cultivated cotton gene pool is poor in valuable
genes and/or alleles.
Exotic genotypes are a good source of diverse
genes and/or alleles.
Genetic mapping and locating the genes
governing these valuable traits help in breeding
superior cotton cultivars.
51. “Strength lies in differences, not in similarities”
- Stephen R. Covey
THANK YOU
Embrace Diversity
