|
Rationale
...
Objectives
...
|
| CURRICULUM |
| SL |
Topics |
Periods |
| 1. |
Introduction |
01 |
| 2. |
The Selection of Samples |
06 |
| 3. |
Moisture Relations and Testing |
11 |
| 4. |
Fibre Testing |
17 |
| 5. |
Yarn Testing |
05 |
| 6. |
The Elements of Statistics |
10 |
| |
Total |
50 |
| CONTENTS |
| Topics |
Content |
Periods |
| 01 |
Introduction |
01 |
| 01.01 |
The objectives of testing. |
|
| 01.02 |
Importance of testing and quality control. |
|
| 02 |
The Selection of Samples |
06 |
| 02.01 |
The selection of samples for testing: Random Sample, and the Biased Sample. |
|
| 02.02 |
Methods of sampling for testing: Sampling by ISI Method, and Sampling by B.S.I. Method. |
|
| 02.03 |
Determination of Fibre length: Halo Method, and Butterfly Method. |
|
| 02.04 |
Determination of Fibre-Length (Sliver form): Squaring Technique, and Cut Squaring Technique. |
|
| 02.05 |
Yarn Sampling Methods: The use of Random Numbers; Examples of Sampling Methods for Yarns (Yarn Count, Twist in yarn, Lea Strength, Single thread strength test). |
|
| 02.06 |
Fabric Sampling Methods. |
|
| 03 |
Moisture Relations and Testing |
11 |
| 03.01 |
Introduction. |
|
| 03.02 |
Humidity and its importance to textile materials. |
|
| 03.03 |
Moisture Regain and Moisture Content. |
|
| 03.04 |
Absolute humidity and Relative humidity. |
|
| 03.05 |
Standard atmosphere and testing atmosphere. |
|
| 03.06 |
Standard condition for testing of textile material. |
|
| 03.07 |
Determination of the humidity: Wet-and-dry bulb hygrometer, Hair hygrometer, and Electrolytic hygrometer. |
|
| 03.08 |
Regain - Humidity Relations of textiles. |
|
| 03.09 |
Factors affecting the regain of textile material: (Relative humidity, time, temperature, previous history of the sample). |
|
| 03.10 |
Effects of regain on fibre properties. |
|
| 03.11 |
Oven dry weight and correct invoice weight. |
|
| 03.12 |
Determination of Moisture: Conditioning oven, Shirley moisture meter. |
|
| 03.13 |
Standard regain percentage of textile material (cotton, silk, wool, jute, nylon, acetate, polyester etc.) |
|
| 04 |
Fibre Testing |
17 |
| 04.01 |
Fibre Grade: Determination of colour, trash by trash analyser. |
|
| 04.02 |
Fibre Length: Introduction. Importance of fibre length. Methods of Measuring fibre length: Comb sorter, Digital Fibrograph, Uster Staple Apparaturs. |
|
| 04.03 |
Fibre Fineness: The importance of fibre fineness and definition of fineness, Methods of measuring fineness: Gravimetric Method, Optical Method, Air-flow Method - W.I.R.A. Fineness Meter. |
|
| 04.04 |
Fibre Maturity: Introduction and importance of maturity, Maturity ratio, Maturity count, Determination of maturity - Alkaline Swelling method, Polarised light method, Differential dyeing method. |
|
| 04.05 |
Fibre Strength: Principle of CRL, CRE, CRT type tensile testing machine, Methods of measuring the strength of fibres: Single fibre strength testing, Bundle (group) fibre strength testing, Pressley Strength tester, Stelometer. |
|
| 04.06 |
Terminology and Definitions: Load, Breaking Load, Stress, Mass Stress or Specific Stress, Tenacity or Specific Strength, Breaking Length, Strain, Extension, Breaking extension, The Loa-Elongation Curve, Stress-Strain Curve, Initial Young's Modulus, Yield Point, Work of Rupture, Work Factor, Elastic Recovery, Time and elastic properties, Factors influencing strength test results. |
|
| 05 |
Yarn Testing |
05 |
| 05.01 |
Yarn Counts. |
|
| 05.02 |
Measurement of Length of Yarn: Methods of Length measuring - Hand wrap reel, Motorized wrap reel, Skein Gauge. |
|
| 05.03 |
Yarn in short length (or piece of cloth). |
|
| 05.04 |
Instruments used for count determination: Analytical Balance, Knowles Balance, Quadrant Balance, Beesley's Balance, Lauth Sensitive Yarn Balance. |
|
| 06 |
The Elements of Statistics |
10 |
| 06.01 |
Definition. |
|
| 06.02 |
Importance in testing. |
|
| 06.03 |
Definition of terms used in statistics such as sample, sampling, sample size, population, histogram, frequency polygon, frequency polygon, frequency curve and frequency distribution. |
|
| 06.04 |
Average and other methods of location: Arithmetic Mean, Median, Mode. The relationship between the methods of location. |
|
| 06.05 |
The Measurement of Dispersion or scatter- Range, mean range, percentage mean range, inter-quartile range, mean deviation, percentage mean deviation, standard deviation, co-efficient of variation, variance and standard deviation. |
|
| 06.06 |
Probability. |
|
| 06.07 |
Problems. |
|
| Recommended Books |
| SL |
Title/Publisher |
Author |
| 1. |
Principles of Textile Testing |
J. E. Booth |
| 2. |
Hand Books of Methods of Tests |
C.T.R.L. |
| 3. |
Hand Books of Textile Testing & Quality Control |
Grover |
| 4. |
ISI Hand Book of Textile Testing |
I.S.I. |
| 5. |
Textile Testing |
Skinkle |
| 6. |
Textile Testing |
Angappan |
| 7. |
Textile Testing and Analysis |
Vaishnav, Joshi |
| Scheme of Examination: Final Examination Marks = 80 |
