Process for treating of threads

A process for rapid treating of a textile thread, said process comprising:

• (i) treating said thread with a swelling agent or a solution comprising the same, thereby swelling said thread thus enhancing penetration of a treating agent into amorphous regions of said thread at a temperature higher than the glass transition temperature (Tg) or modified Tg of said thread;
• (ii) treating said thread;
• and
• (iii) optionally treating said thread with a binder or a coating material capable of:
• (a) fixing treatment-molecules left thereon to the surface of said thread;
• (b) adding color to the treated thread;
• (c) adding matt-glossing look to the treated thread;
• (d) adding glittering;
• (e) adding a metallic look to the treated thread;
• and/or (f) adding functionality such as conductivity, bioactivity, friction, or any other functional smart textile capability to the treated thread,
• wherein the treated thread is kept at a controlled tension throughout the entire treating process.