There are several types of synthetic fibers commonly used in textile materials. Some of the most common types include:

1. Polyester: Polyester is a synthetic fiber that is widely used in textile materials due to its durability, wrinkle resistance, and ease of care. It is commonly used in clothing, home furnishings, and industrial fabrics.

2. Nylon: Nylon is a strong and durable synthetic fiber that is used in a variety of textile applications, including clothing, hosiery, and industrial fabrics. It is known for its strength, elasticity, and abrasion resistance.

3. Acrylic: Acrylic is a synthetic fiber that is often used as a substitute for wool due to its softness, warmth, and light weight. It is commonly used in knitwear, blankets, and other home furnishings.

4. Spandex: Spandex, also known as Lycra, is a stretchy synthetic fiber that is commonly used in clothing and other textile materials that require a high degree of flexibility and elasticity.

5. Rayon: Rayon is a semi-synthetic fiber that is made from wood pulp or other plant-based materials. It is known for its softness and draping qualities, and is commonly used in clothing, home furnishings, and industrial fabrics.

6. Olefin: Olefin is a synthetic fiber that is known for its strength, stain resistance, and durability. It is commonly used in outdoor upholstery, carpeting, and other industrial fabrics.

These are just a few of the most common types of synthetic fibers used in textile materials. The choice of fiber depends on the specific application and the desired properties of the final product.