Fashion Flashcards
what is a fibre?
basic blocks of yarn
what are yarns?
.
What are natural fibres? example?
.
what are synthetics?
made made, from chemicals - petroleum
what happens when polyester meets waiter?
the water is not absorbs
what happens when cotton meets water?
absorbs
what does hydrophilic mean?
Water lover.
Absorbs water.
Explain why t-shirts are made from 100% pure cotton?
the water can evaporate
Why blend two fibres in one garment?
to capture the strengths of each fibre
When was cotton first cultivated?
1700 AD
Describe how the plants develop into cotton?
Picked > ginning > spun
how is cotton harvested? How has this changed?
Highly Mechanical.
Stripped by machines > sent off > ginned > spun
What does the ginning process do?
separate the cotton and the seeds
How is cotton classed or graded?
the degree of whiteness, length.
What is the average length of high-grade cotton fibres? what are they used for?
3/4 - 2 inch
How much does cotton shrink?
3%
What is wool made from?
Sheep > Protein
Describe the best type of wool.
soft, springy, not brittle
what is the basic process of wool manufacturing?
Sheering > Carting > Spun.
What is unique about wool fibre? Why is the important in a strand of yarn?
the fibres lock and trap the warm air
How much water can wool hold?
almost double its own weight
what are the warp and the weft?
weft is pressed through a shuttle. Warp is raised.
How is linen grown?
Flax plant
How is the flax plant harvested?
the whole plant is removed from the ground
How does the linen fibre compare to cotton?
the linen fibre is longer than cotton. (2inch >20inch)
When is linen used?
Table, bed spreads, drapes, clothes.
When was silk first cultivated and where?
In china over 5000 years ago
how is silk manufactured?
silk worms are fed mulberry leaves, then once spun, boiled and threaded onto a machine
Why does silk reflect light?
it reflects light because its long
How is silk damaged?
deorderent, light, clorine
Why is wild silk different from cultivated silk? What are the differences?
Wild silk has a different diet - a wider range of food, and is a yellow-brown colour
What properties make polyester so appealing?
easy to wash, tough, crease resistant.
What does polyester start as? Describe the manufacturing process.
Petroleum
What are the main uses of nylon?
Tyres, stockings, veils, parachutes, rope, fishing line, tents.
what is acrylic made from?
coal, air, limestone, oil, water
