Physical Properties of Polymers Polymer: A chemical compound or mixture of compounds formed by polymerization and consisting essentially of repeating structural units is called ‘Polymer’. Polymers range from familiar synthetic plastic such as polystyrene to natural bio-polymers such as DNA and proteins that are fundamental to biological structure and function. Physical Properties: Physical properties of polymers […]
Wet Processing Eng.
All Textile Abbreviations | Abbreviation Related to Textiles
Abbreviation Related to Textiles | All Textile Abbreviations ASTM – American Society for Testing Materials AAMA– American Apparels Manufacturing Association AAQC-American Apparels Quality control AAQC– American Association of Quality Control AAMC-American Apparel Manufacturing Corporation ASQC– American Society for Quality Control BGMEA– Bangladesh Garments Manufacturers & Exporters Association BCCFA– Bangladesh Custom Clearing & Forwarding Agent BCI -Bangladesh Commerce & […]
What is Color | Color Theory
Color Theory What is Color : Color is the general name of all the sensation arising from the activity of retina of the eye & attached nervous mechanism. We see are the colors of the visual spectrum of red, orange, yellow, green, blue & violet. Objects absorb certain wavelength & reflect others back to […]
Dyeing Auxiliaries | Function of Auxiliaries | Dyeing Method of Vat Dye | part 02
Vat dye | Why called vat dye | Vat dye properties | Uses of Vat dye | Classification of Vat dye | The 1N (indanthrene normal) group | The IW (indanthrene Warm) group | The IK group | Anthraquinonoid | Indigoid | Dyeing of cotton with vat dye | Vat dyeing recipe | Part 01 […]
Polysaccharide Thickeners
Polysaccharide Thickeners Introduction: Thickener is a colorless thick mass which imparts stickiness and plasticity to the print paste so that it may be applied on the fabric surface without bleeding or spreading and be capable of maintaining the design out lines. Polysaccharides: Nature has provided large quantities of many polymers that are soluble or dispersible […]
Dyeing of Cotton with Vat dye | Part 01
Vat dye Vat dye is one of the oldest types of dye. It is mainly suitable for cellulosic fibre for best overall fastness properties. Because of the popularity of blue jeans, indigo is still one of the most important dye in the world in the present time. Natural indigo was extracted by fermenting Indigofera tinctoria […]
Defects of Sulfur Dyeing Part 3
Part 01 :Introduction to Sulfur Dyes | History of Sulfur Dyes | Method of manufacture of Sulfur dye | Trade Names of Sulfur Dyes | Characteristics of Sulfur Dyes | Features of Sulfur Dye | Chemical Structure of Sulfur Dye | Chemical Nature of Sulfur Dyes | Chemistry of dyeing with Sulfur Dye Part […]
Classification of Sulpher Dyes Part 2
Part 01 :Introduction to Sulfur Dyes | History of Sulfur Dyes | Method of manufacture of Sulfur dye | Trade Names of Sulfur Dyes | Characteristics of Sulfur Dyes | Features of Sulfur Dye | Chemical Structure of Sulfur Dye | Chemical Nature of Sulfur Dyes | Chemistry of dyeing with Sulfur Dye Part […]
Introduction to Sulfur Dyes Part 1
Introduction to Sulfur Dyes Sulfur dyes are complex heterocyclic molecules or mixtures formed by melting or boiling organic compounds containing amino or nitro groups with Na-polysulphide and Sulfur. Sulfur dyes are so called as they all contain Sulfur linkage within their molecules. Sulfur dyes are highly coloured, water insoluble compounds and have to be […]
Dyeing Jute yarn with Basic dye
Name of the Experiment: – Dyeing Jute yarn with Basic dye. Introduction: It is suitable for acrylic fibers (other fibers by mordanting). It reacts with acetic groups, or mordants a chemical which can react or complex with a chromophore to form an insoluble color in the fibre. It has good fastness properties on acrylic […]