(2.7) How heat affects Textile Fiber's properties

2.7
How heat affects Textile Fiber's properties
Heat helps the fiber /fabric to gain certain special qualities at certain times and are also harmful at other times.But under special guidance,heat helps fiber acquire the following characteristics

• Softening, melting, or decomposition temperatures
• Tendency of the fiber and fabric to shrink when heat-relaxed, or stretch when heated and under tension
• Ability of the fabric to heat set
• Ability of the fabric to function properly at elevated temperatures in one time or repeated use
• Ability of the fabric to function properly at room temperature (or some other lower temperature) after exposure at high temperature for a given period of time 

Examples of Fiber Shapes