The full-dull PET FDY with better dyeing result was prepared via mass dyeing by injection on a Barmag thermal channel spinning(TCS) equipment under the conditions as followed: titanium dioxide weight mass ratio 2.

Various ways of spinning Ⅱ.The spinning tension in cool and thermal-channel spinning and the process adjustment;

Thus, using TCS technology to produce FDY instead of using traditional hot godet, has many advantages like shortened process, low energy consumption,.