Hsc Material Analysis

2218 Words9 Pages
TAS – HSC Textiles and Design Assessment Task 1 Part A; Identify the production and type of traditional textile fibres A traditional textile fibre within the country of Spain and other regions is cotton, cotton is an arable crop used mainly for fibre. The cotton seed which remain after cotton is ginned, is used to produce oil for human consumption or oilseed cake for animal feed. Currently, cotton is produced only in three member states on around 300,000 ha. Greece is the main cotton grower with 80% of production of cotton coming through there, followed by Spain (mainly the region of Audaluica) with share of 20% or production. Bulgaria produces cotton on less than 1,000 ha. Cotton production has ceased Italy in 1991 and Portugal in 1996.…show more content…
The gin ticket identifies the bale until it is woven. The ticket is a bar-coded tag that is torn off during inspection. A sample of each bale is sent to the United States Department of Agriculture (USDA) for evaluation, where it is assessed for color, leaf content, strength, fineness, reflectance, fiber length, and trash content. The results of the evaluation determine the bale's value. Inspection results are available to potential buyers. After inspection, bales are stored in a carefully controlled warehouse. The bales remain there until they are sold to a mill for further…show more content…
This period is termed pupating. Silkworms possess a pair of specially modified salivary glands called sericteries, which are used for the production of fibroin – a clear, viscous, proteinaceous fluid that is forced through openings called spinnerets on the mouthpart of the larva.Liquid secretions from the two large glands in the insect emerge from the spinneret, a single exit tube in the head. The diameter of the spinneret determines the thickness of the silk thread, which is produced as a long, continuous filament. The secretions harden on exposure to the air and form twin filaments composed of fibroin, a protein material. A second pair of glands secretes a gummy binding fluid called sericin which bonds the two filaments

More about Hsc Material Analysis

Open Document