In textiles, hydrophilic materials refer to those that have an affinity for water, meaning they can absorb and transport moisture away from the skin. The functions of hydrophilic materials in textiles include:

1. Moisture management: Hydrophilic fabrics can absorb and wick moisture away from the skin, promoting comfort and preventing moisture buildup. This property is particularly useful in athletic and outdoor clothing.
2. Stain resistance: Hydrophilic fabrics can be treated with water-repellent coatings that prevent stains from setting in, making them easier to clean.
3. Cooling effect: Hydrophilic fabrics can be treated with cooling agents that evaporate moisture and provide a cooling sensation, making them ideal for use in warm or humid environments.
4. Improved dyeing: Hydrophilic fabrics can be more easily dyed using water-based dyes, resulting in brighter, more vibrant colors.
5. Improved breathability: Hydrophilic fabrics allow air to circulate more freely, improving breathability and reducing heat buildup.

Overall, the functions of hydrophilic materials in textiles revolve around improving comfort, performance, and aesthetics. By enhancing moisture management and promoting breathability, hydrophilic textiles can provide a more comfortable and functional experience for the wearer.