First of all, remove the wool from the collar and pick more needles from the new collar, so that the collar will become smaller and bigger.

Brief introduction of woolen sweater

Sweater originally refers to a knitted sweater made of wool, which is also recognized by ordinary people. In fact, "sweater" has now become synonymous with a class of products, that is, it is used to refer to "knitted sweater" or "wool knitwear".

Sweater clothing, commonly known as sweater clothing, also known as wool knitted clothing, is a knitted clothing woven from wool yarn or wool-type chemical fiber yarn. Around 1000 BC, hand-woven wool knitted garments appeared in the Euphrates River and Tigris River basins in West Asia.

Machine-woven wool garments have appeared in modern times. In A.D. 1862, American R. I.W Ram invented the double-reverse flat knitting machine, and on this basis, sweaters were produced, and the pieces were sewn into garments, marking the beginning of woven wool knitted garments.

Wool knitwear refers to the fabric with animal hair fibers such as wool, cashmere and rabbit hair as the main raw materials and then spun into yarn. For example, rabbit sweaters, shiran sweaters, woolen sweaters and acrylic sweaters are all "sweaters".