English to French Other Textiles / Clothing / Fashion wool production

This seems to be a term (used in Eastern Canada) to designate something similar to a skein of yarn for rug yarn.
2 examples:• It takes approximately 4 pounds of unwashed fiber to make 1 rug bump of 150 yds.
• Wrapped around a jute core, our rug yarn bumps are made in either 75 yard or 150 yard lengths, which weigh approximately 25/50 ounces

Thank you!