A Guide to Textile and Clothing
A Guide to Textile and Clothing
Introduction Polyester are polymers made by a condensation reaction taking place between small molecules, in which the linkage of the molecules occurs through the formation of ester groups. Polyesters are commonly made by interaction of a dibasic acid with a dihydric alcohol: HOOC-X-COOH + HO-Y-OH → …OC-X-COO-Y-OCO-X-COO-Y-OCO… The formation of polyester was studied by Wallace H. Carothers[…]
Introduction Asbestos is known to heavy toxicity. The inhalation of this toxic fibre can cause serious illness, including malignant mesothelioma, asbestosis, and lung cancer (also called pneumoconiosis). Since the mid 1980s, many uses of this fibre have been banned in several countries. This fibre became increasingly popular among manufacturers and builders in the late 19th century[…]
Principle The pressure in a liquid is exerted in all directions and this phenomenon of a liquid is used for testing bursting strength in hydraulic bursting strength tester. Sample Size The specimen for this test should be cut so that the sample is ½ inch greater in diameter of the clamp ring. Ten specimens are[…]
A polymer is like a giant molecule of small building blocks called monomers. These monomers are tiny organic compounds. They form a long chain or network when they come together through a chemical process called polymerization. This can happen in different ways, like addition polymerization, where the monomers join without producing any extra stuff, or[…]
Instead of buying any cotton available at the lowest price, spin it to produce yarn if highest count possible and selling yarn at any market at random. It is advisable to locate a good market where yarn can be sold at the highest price and fine cotton, which has characteristics to spin the yarn of desired specifications for that[…]
