GB888970A - Textile treating apparatus - Google Patents

Abstract

<PICT:0888970/IV (a)/1> Apparatus for the continuous treatment of artificial textile material in long or continuous lengths comprises a pressurizable conditioning chamber, means for supplying a gas or vapour under pressure to the chamber, means for continuously feeding textile material to the chamber comprising endless belts, means for continuously removing the material comprising endless belts, the feeding and removing means in combination with the chamber rendering the latter pressurizable, and means in the chamber for conveying the material from the feeding to the removing means, the conveying means being arranged to position the material in a relaxed condition during its conveyance. As shown, a tow 11, for example of polyacrylonitrile filaments, is continuously fed into a conditioning chamber 12 by means of a pair of travelling endless belts 17, 18 mounted on driven rolls 19, 21 and extending through openings 22 in the top wall 16 of the chamber. The openings 22 are provided with a labyrinth seal or resilient sleeve in order to reduced loss of pressure of the gas or vapour in the chamber. The tow is then deposited on the upper horizontal run 29 of a travelling endless belt 24 in a relaxed condition and is exposed to saturated steam at a pressure of 35-50 p.s.i. which is introduced into the chamber 12 through the inlet 38 and screen 39. The tow is thus moistened and brought to a temperature of about 135 DEG -155 DEG C. and thereby annealed. The endless belt 24 is mounted on rolls 26, 27 and driven roll 28 and moves through openings 31, 33 in the side wall 32 of the chamber 12. It co-operates with a travelling endless belt 36 mounted on idler roll 34 and driven roll 36 to pick up the tow and carry it out of the chamber 12, through one of the openings 31. The openings 31 are provided with sealing devices 37. The rate at which the tow is deposited on the upper run 29 of belt 24 is preferably regulated by means responsive to the movement of the tow, e.g. photo-electric cells 41, 42 with associated light sources (not shown) which control the speed of the tow feeding means 14 or removal means 30. Condensed steam is removed from the chamber 12 through an outlet 43 provided with a steam trap.ALSO:<PICT:0888970/IV (c)/1> Apparatus for the continuous treatment of textile material in long or continuous lengths comprises a pressurizable conditioning chamber, means for supplying a gas or vapour under pressure to the chamber, means for continuously feeding textile material to the chamber comprising endless belts, means for continuously removing the material comprising endless belts, the feeding and removing means in combination with the chamber rendering the latter pressurizable, and means in the chamber for conveying the material from the feeding to the removing means, the conveying means being arranged to position the material in a relaxed condition during its conveyance. As shown, a tow 11, for example of polyacrylonitrile filaments, is continuously fed into a conditioning chamber 12 by means of a pair of travelling endless belts 17, 18 mounted on driven rolls, 19, 21 and extending through openings 22 in the top wall 16 of the chamber. The openings 22 are provided with a labyrinth seal or resilient sleeve in order to reduce loss of pressure of the gas or vapour in the chamber. The tow is then deposited on the upper horizontal run 29 of a travelling endless belt 24 in a relaxed condition and is exposed to saturated steam at a pressure of 35-50 p.s.i. which is introduced into the chamber 12 through the inlet 38 and screen 39. The tow is thus moistened and brought to a temperature of about 135 DEG C.-155 DEG C. and thereby annealed. The endless belt 24 is mounted on rolls 26, 27 and driven roll 28 and moves through openings 31, 33 in the side wall 32 of the chamber 12. It co-operates with a travelling endless belt 36 mounted on idler roll 34 and driven roll 36 to pick up the tow and carry it out of the chamber 12, through one of the openings 31. The openings 31 are provided with sealing devices 37. The rate at which the tow is deposited on the upper run 29 of belt 24 is preferably regulated by means responsive to the movement of the tow, e.g. photoelectric cells 41, 42 with associated light sources (not shown) which control the speed of the tow feeding means 14 or removal means 30. Condensed steam is removed from the chamber 12 through an outlet 43 provided with a steam trap.