A professional who inspects yarn for defects preparatory to shipment or storage. Responsibilities include:

• Examines bobbins, cones, cops, or tubes of yarn by sight and touch for defects, such as broken threads, cross threads, dirty yarn, and excessively loose or tight winding.
• Places defective yarn on trays or bobbin carts for reprocessing.
• Wraps yarn in paper or other material to prevent soiling and damage during shipment or storage.
• Packs and weighs yarn after inspection.
• Records amount of yarn packed and number of cones rejected.
• May stamp shipping carton with identification data.
• May push loaded racks of yarn into steam cabinet to condition yarn.