Download - Cotton Fibre
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FIBER : COTTONPROPERTIES & DESCRIPTION
JINAL SHAH | STU. # : 3458211
ANITA ASWAR | STU. # : 3453059
PROPERTIES COVERED
1. HYGROSCOPIC NATURE : WICKING ABILITY
2. MODULUS : STIFFNESS
RMIT UNIVERSITY
PROGRAM : MASTERS OF FASHION AND TEXTILESCOURSE : TEXTILE FIBER STRUCTURE AND SURFACE TREATMENTS
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COTTON : OVERVIEW
CELLULOSIC STAPLE FIBER FROM A SEED OF PLANT
CHARACTERISTICS
VERSATILE
DURABLE INEXPENSIVE
COMFORTABLE
FIBER PROPERTIES : COTTONRMIT UNIVERSITY
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Cross section of a mature cotton boll
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HYGROSCOPIC NATURE | WICKING
LINEAR POLYMER : APPROX. 5000 CELLOBIOSE UNITS
HYDROXYL GROUP (-OH)
METHYLOL GROUP (-CH2OH )
HYDROGEN BONDS & VAN DER WAALS FORCES
CRYSTALLINITY : 65% -70% | AMORPHOUS : 30% - 35%
FIBER PROPERTIES : COTTONRMIT UNIVERSITY
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VERY ABSORBANT : HYDROPHILIC : WATER LOVING
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COTTON FIBER PROPERTIESRMIT UNIVERSITY
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HYGROSCOPIC NATURE | WICKING CONTINUED.
VERY ABSORBANT : HYDROPHILIC
OH GROUPS IN POLYMER ATTRACT POLAR WATER MOLECULES.
WATER ONLY IN AMORPHOUS REGION
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FIBER PROPERTIES : COTTONRMIT UNIVERSITY
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COHESION + ADHESION = CAPILLARY ACTION (WICKING)
HYGROSCOPIC NATURE | WICKING CONTINUED.
WATER MOLECULE
POLARITY : ONE END POSITIVELY CHARGED & OTHER END NEGATIVELY CHARGED
ADHESION : WATER ATTRACTION ON FIBER SURFACECOHESION : INTERMOLECULAR ATTRACTION BETWEEN WATER MOLECULES
COMBINATION OF THE COHESION BETWEEN WATER MOLECULES AND WATERS
ADHESION TO THE CHARGED FIBER
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EXPERIMENT
COTTON FIBER PROPERTIESRMIT UNIVERSITY
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HYGROSCOPIC NATURE | WICKING CONTINUED.
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STANDARD TESTING
AATCCAMERICAN ASSOCIATION OF TEXTILE CHEMIST AND COLORIST
AATCC 197-2013 : VERTICAL WICKING OF TEXTILES
: HORIZONTAL WICKING OF TEXTILES
COTTON FIBER PROPERTIESRMIT UNIVERSITY
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HYGROSCOPIC NATURE CONTINUED
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HYGROSCOPIC NATURE CONTINUED
DISSIPATES STATIC ELECTRICITY
ALLOWS EXCELLENT DYEABILITY
- AZOIC DYES
- DIRECT DYES- REACTIVE DYES
- SULPHUR DYES
- VAT DYES
FIBER PROPERTIES : COTTONRMIT UNIVERSITY
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MODULUS : STIFFNESS CONTINUED
ASSOCIATED WITH
MODULUS OF ELASTICITY
ELASTIC MODULUS OR
TENSILE MODULUS
RATIO OF THE UNIAXIAL STRESSOVER THE UNIAXIAL STRAIN
SLOPE OF A STRESS-STRAIN CURVE
CREATED DURING TENSILE
FIBER PROPERTIES : COTTONRMIT UNIVERSITY
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MODULUS : STIFFNESS CONTINUED
Slenderness Ratio : COMPRESSION, RUBBING, STRETCHING
High Modulus = HIGH STIFFNESS = Low Slenderness
HAIRINESS, IRREGULARITY AND IMPROPER BINDING INTO YARNS
Low Modulus = LOW STIFFNESS = High Slenderness
FORMS NEPS, DEFLECTIION DURING PROCESSING
FIBER PROPERTIES : COTTONRMIT UNIVERSITY
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FIBER PROPERTIES : COTTONRMIT UNIVERSITY
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MODULUS : STIFFNESS CONTINUED
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IMPORTANCE
AFFECTS FIBER TO YARN PROCESSING
AFFECTS FABRIC PROPERTIES ;
FLEXIBILITY DRAPE
HANDLE
CREASE RESISTANCE
WEAR
FIBER PROPERTIES : COTTONRMIT UNIVERSITY
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MODULUS : STIFFNESS CONTINUED
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FIBER TESTING
STRESS STRAIN CURVE
MEASURING SLENDERNESS RATIO
FABRIC TESTING AUSTRALIAN STANDARD : AS 2001.2.9
APPARATUS : FLEXOMETER
FIBER PROPERTIES : COTTONRMIT UNIVERSITY
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MODULUS : STIFFNESS CONTINUED
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FIBER PROPERTIES : COTTONRMIT UNIVERSITY
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STIFFNESS COMPARISON WITH OTHER FABRICS
MODULUS : STIFFNESS CONTINUED
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HYGROSCOPIC NATURE | WICKING : HIGH
MODULUS | STIFFNESS : MODERATELY HIGH
THANK YOU
COTTON FIBER PROPERTIESRMIT UNIVERSITY
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COTTON PROPERTIES