Viscose rayon spinning machine

In an apparatus for spinning viscose rayon having a spinning bath and a stretch bath, the improvement which comprises, spinning bath enclosure means arranged for trapping and collecting gases emanating from said spinning bath, stretch bath enclosure means arranged for trapping and collecting gases emanating from said stretch bath, condensed gas removal means connected to said stretch bath enclosure for removing condensed gases from said stretch bath, and further gas removal condensed gases from said stretch bath, and further gas removal means associated with both said spinning bath enclosure means and said stretch bath enclosure means for removing gases therefrom, and collecting means for collecting the gases thus removed.

In an apparatus for spinning viscose rayon including means forming an acid bath, means for feeding an acid solution to said acid bath, fiber forming jet means disposed beneath the surface of said bath, means for forcing aqueous xanthated alkali cellulose in liquid form into said jet means to produce a multiplicity of fibers, means for taking up the resulting fibers and means for delivering freshly spun fibers to a stretch bath, the improvement which comprises:

• first enclosure means sealingly enclosing said acid bath and take-up means for trapping and collecting substantially all gases emanating therefrom, a second enclosure means arranged for trapping and collecting gases emanating from said stretch bath, first gas removing means disposed for removing condensed carbon disulfide gas from said second enclosure means, second gas removal means associated with said first and second enclosure means for removing substantially all dilute gases from said first and second enclosure means, and means for recovering said removed gases.

In an apparatus for spinning viscose rayon having means forming an acid bath, said bath having overflow means for establishing a fluid level therein and means for feeding an acid solution to said bath, the improvement which comprises means associated with said bath for conducting used acid from said bath, baffle plate means disposed in said apparatus and separate from said bath, for causing a downward cascading flow of used acid so as to remove gases therefrom.

In an apparatus for stretching viscose rayon filaments having at least one stretch bath and means for passing the filaments through the stretch bath, the improvement in which said stretch bath comprises a container having a first overflow means establishing a container fluid level therein, said container including at least two openings through which the filaments are caused to pass through said container below the established fluid level, said openings having sealing means for sealing against escape of container liquid, and means for preventing gases which emanate from said bath from escaping to the atmosphere.

In an apparatus for stretching viscose rayon filaments having at least one stretch bath and means for passing the filaments through the stretch bath, the improvement in which said stretch bath comprises a container having a first overflow means establishing a first container fluid level, said container including at least two openings through which the filaments are caused to pass through said container, said openings having sealing means for sealing against escape of gas evolving from said bath, means within the entrance of said bath forming a gas vent chamber, said gas vent chamber having an opening for passing the filaments through said first container fluid below the liquid level, said opening having sealing means for sealing against the escape of liquid, said gas vent chamber including a second overflow means establishing another fluid level which is lower than said first container fluid level, means connected for recovery of the gases emanating from said bath.

In an apparatus for spinning viscose rayon fiber having a spinning bath, jet means for extruding fiber forming material in said spinning bath, and take-up means for taking up the resultant fibers, the improvement which comprises at least one means prior to take-up for removing and collecting spinning bath liquid from said fibers containing spent spinning bath liquid and by-products and means associated with said removing and collecting means for separately recovering the thus-separated liquid.

In an apparatus for spinning viscose rayon fiber having a spinning bath, jet means for extruding fiber forming material in said spinning bath, and take-up means for taking up the resultant fibers, the improvement which comprises the combination of at least one means contacting said fibers prior to take-up for removing and collecting spinning bath liquid from said fibers containing spent spinning bath liquid and chemical by-products, means associated with said removing and collecting means for separately removing and recovering said collected liquid and means for recovering said chemical by-products from the liquid independently of other reclamation system and recycling said liquid after removal of said chemical by-products.