Polyester fleece (polar fleece) is knitted. It is made in a similar way to sweatshirt material. Sweatshirt material has what is called a 'floating yarn' on one side (fleecy has these yarns on both sides), which is a yarn that only loops through the fabric infrequently so it creates loops. This side can be un-brushed (with one side like terry-towel) or it can be brushed (fuzzy on one side). This brushing technique is what makes polyester fleece so fuzzy.
Wool is first spun into yarn, and the yarn can be knitted or woven, depending on the final result you want.
Merino wool is sheared from Merino sheep, then processed to remove impurities. The fibers are spun into yarn, which is then woven or knitted into fabric. The fabric is then dyed, finished, and potentially treated for specific properties like softness or water resistance.
Some main types of woven and kitted fabrics are wool, cotton, thread, garment cotton and polyester.
Underwear made of knitted wool dominated throughout the first two decades of the twentieth century.
This most likely refers to a single needle bed knitting the fabric. Fabric knitted on only one needle bed is jersey fabric. If fabric is knitted using all needles on both needle beds, then the fabric is a called a full needle rib knit.
about 50% is made from wool
Yes, wool can be a fabric.
Fabric is a mixture, typically composed of different fibers such as cotton, polyester, or wool woven or knitted together to create a textile material. Each fiber retains its original properties within the fabric, making it a mixture.
A traditional jersey is either hand-knitted from wool (from a sheep), or is less traditionally machine knitted using either wool or a wool/acrylic mixture.
Cloth made of matted fibers of wool is sometimes referred to as felt.
How to get the accurate stretchability of fabric knitted
They're not. Brioche knitting is a special knitting technique where the resulting fabric i about twice as thick as normal knitted fabric. Hats can be knitted using the brioche technique.