Wool sweater clothing is generally called sweater clothing, also known as wool knitted clothing, which is knitted clothing made of wool yarn or wool-type chemical fiber yarn. Around 1000 BC, hand-knitted wool knitted garments appeared in the Euphrates and Tigris river basins of West Asia. Machine wool knitted garments appeared in modern times. In 1862, American RIW Ram invented the double-reverse flat knitting machine, which used sweaters to produce shaped pieces for sewing into garments, marking the beginning of machine-knitting wool knitted garments. .

my country has used wool yarn to produce sweaters and garments on flat knitting machines for more than 80 years. Before the liberation, my country’s sweater and garment production technology was very backward, the raw materials were mainly imported, and the knitting, garment and dyeing and finishing equipment was very simple. After the liberation, especially since the early 1980s, the design, production technology, technology and equipment of sweaters and garments in our country have made significant progress.