LEC-7 INTRODUCTION OF YARNS

What is Yarn?

Yarn is a length of fibres. That’s the simplest way to explain it. It is a continuous length of fibres which are interlocked, and it’s used to produce fabrics, as well as in crocheting, knitting, embroidery and ropemaking.

This means that we can split yarn into two different ‘categories’ of sorts. The thread that is used for embroidery or in sewing machines, as well as yarn (commonly known as balls-of-wool) used in crafts such as knitting or crocheting, are long lengths that are bought as yarns.

The alternative would be a yarn which is then knitted or woven into a fabric. The textile is then bought as fabric, in lengths, rather than the yarn itself being purchased separately. This second description is the one that we will explore further in this post.

what is yarn

What is Yarn Made From?

Yarn can be made from such a variety of different fibres. This includes both natural and synthetic fibres. The most common plant fibre is cotton, however, you can also use other natural fibres such as bamboo. Alongside cotton, the synthetic polyester fibre makes up the two most commonly used fibres. Animal fibres are also often used, such as wool, harvested from sheep, as well as cashmere (harvested from goats) Angora (from rabbits) and silk (from insect larvae).

spun or filament yarn

What is the Difference Between Spun and Filament Yarn?

Spun yarn is made by twisting staple fibres together in either an S or Z twist, to make a single thread. The process of twisting the fibres together into yarn is called spinning and it was one of the first processed to be industrialised. Spun yarns can contain a single type of fibre, or you can spin various types of fibre together to give you a blend.

Filament yarn is made up of filament fibres which are either twisted together or simply grouped together. It can either be composed of one filament, which is called a monofilament, or it could be made of more than one, in which case it would be known as a multifilament. This can be as few as two or three filament fibres, or even up to 50, or more.