Fabric (unit 2) Flashcards
Learn it!
How is Fabric constructed?
Fabric is constructed by weaving, knitting or bonding
fibres and yarns together a
What is fabric?
The material used to
make textile products.
What are the 4 things the nature of fabric is effected by?
- Fibre composition
- Yarn structure
- Choice of construction technique
- choice of finish
How is woven fabric constructed?
Weaving/interlacing two sets of yarns together under and over eachother to create fabric.
What are the two sets of yarns used to construct woven fabric called?
The Warp and the Weft.
Describe the direction of the two sets of yarns used to construct woven fabric.
The Warp runs vertically while the Weft runs horazontally.
What are the properties of woven fabric determined by?
- The type and quality of the fibre used
- The type, strength and degree of twist of the yarn used
- The type of weave used
Name 3 types of weaves
- Plain weave
- Twill weave
- Satin weave
how is knitted fabric constructed?
The interlacing or looping of one or more yarn.
What are the vertical and horizontal loops in knitting called?
Vertical loops are called whale while the horizontal loops are called course
Name 3 ways in wich knitting can be produced.
- Hand knitting (2 kneedles)
- Domestic knitting
- Machine knitting (industrial knitting)
The interlock knit is also known as…
double knit
Describe the interlock knit
two layers of knitting back to back
How is non-woven fabric made?
converting fibres that have not undergone the spinning process into fabric
i.e. fibres are not formed into yarn and there is no grainline.
What are some methods of making non-woven fabric?
- Needle felting
- Chemical bonding
- Thermo bonding
- Mechanical bonding
What is a common construction method when making non-woven fabrics?
- the formation of a web
- the bonding of the web to hold fibres in place
What will fibres with a stronger frictional force require to bond them?
pressure and agitation
What will fibres that will slip past eachother require to bond them?
An adeheisive (spray, powder or pattern)
What are geotextiles?
Polymer fabrics (chemical compounds made up of small molecules that are repeated to form a larger molecule)
What are some ways geotextiles are used?
Maily civil engeneering purposes such as the constructionof roads, drains, harbour works and breakwaters as well as being used for land reclemation
What are some properties of geotextiles?
- Tensile strength
- heat resistance
- Impact strength
- Elongation
5.Stress crack resistance
What are some uses or geotextiles?
- Filtration
- Drainage
- Reinforcment
- Cushioning
- Waterproofing
- Separation
How are Laminates made?
s bonding multiple layers of materials together to form a composite
What are some advantages of Laminates?
durable, more affordable, variety of finishes, easy maintenance.
Resistant to strains.
Why are laminates made?
To make a composite that is stronger, more durable, and more functional than the individual components.
What are some disadvantages of laminates?
Cannot repair, Cannot recycle, not as visually appealing, heat
sensitive (warp or melt)
