1. "Non virgin" yarns are made from recycled materials such as recycled PET plastic bottle slices or textile scrap. These yarns are generally of lower value and may not be as durable as those made from new virgin materials.2. "Virgin" yarns are produced using new, original materials. For instance, new PET plastic bottle slices or raw textile materials can be used to manufacture virgin yarns. These yarns are typically of higher quality and value.3. "Close virgin" refers to yarns that mimic the appearance and properties of virgin yarns but are actually made from recycled materials. These yarns are often used in the production of textiles with lower quality requirements.4. "Recycled" yarns are made from recycled fiber materials, which can include cotton, linen, polyester, wool, and more. These yarns are environmentally friendly and sustainable, helping to reduce waste.Understanding these terms is essential for recognizing the source and processing method of the yarn, which in turn is important for assessing the quality, value, and environmental impact of the textiles made from them.