String up and shutdown process for a yarn texturizing apparatus

Details String up and shutdown process for a yarn texturizing apparatus String up and shutdown process for a yarn texturizing apparatus

1974-10-24

1977-03-29

Mackey, Robert R.

Textiles: manufacturing

Warp preparing or handling

Machine replenishing

D02G 112

Patent

active

040140857

ABSTRACT:
A method for texturizing synthetic thermoplastic yarn in a bulking apparatus wherein a heated, dry gas is employed to convey a yarn into a bulking chamber to form a compact mass of yarn. The process is characterized in that an auxiliary gas is introduced into the bulking apparatus at a lower temperature than that of the heating gas to convey the yarn during start-up and/or shutdown of the apparatus to avoid over-heating and fusion of the yarn, and to thereby prevent plugging of the apparatus.

REFERENCES:
patent: 3778872 (1973-12-01), Newton
patent: 3842468 (1974-10-01), Harrison
patent: 3895420 (1975-07-01), Sturtz et al.

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