US2066371A - Method of desulphurizing artificial filaments of viscose - Google Patents

Method of desulphurizing artificial filaments of viscose Download PDF

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Publication number
US2066371A
US2066371A US704204A US70420433A US2066371A US 2066371 A US2066371 A US 2066371A US 704204 A US704204 A US 704204A US 70420433 A US70420433 A US 70420433A US 2066371 A US2066371 A US 2066371A
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US
United States
Prior art keywords
desulphurizing
substances
viscose
scrooping
treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US704204A
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English (en)
Inventor
Stein Alfred Ernst
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Individual
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Individual
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Publication date
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Publication of US2066371A publication Critical patent/US2066371A/en
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Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F11/00Chemical after-treatment of artificial filaments or the like during manufacture
    • D01F11/02Chemical after-treatment of artificial filaments or the like during manufacture of cellulose, cellulose derivatives, or proteins
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01BMACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B25/00Regulating, controlling or safety means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01BMACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B2250/00Accessories of steam engines; Arrangements or control devices of piston pumps, compressors without crank shafts or condensors for so far as they influence the functioning of the engines
    • F01B2250/004Devices for draining or idling of steam cylinders or for uncoupling piston and connecting rod

Definitions

  • the fibre does not swell so highly, so that chemical attack on'the filament, and more particularly mechanical injury to the. fibre, cannot take place so readily.
  • bobbins, vats and so forth are less attacked than when sodium sulphide and soda lye. are used, although in view of the high temperature of the desulphurizing bath, the chemical attack is still very considerable.
  • one of the following substances is used for desulphurizing filaments, more particularly artificial silk, the working procedure being as usual, that is to say 1 to 2'hours treatment at 80 to 90 C., 1.5 to 2% solution being used.
  • R1 is a polyatomic residue
  • R2 and R3 are any desired'organic residues or hydrogen
  • M is a metal
  • R1 is a polyatomic residue
  • R2 and R3 are any desired'organic residues or hydrogen
  • M is a metal
  • the fatty acid esters of the low aliphatic oxysulphonic acid salts generally formulae e; g. the oleic acid ester of. the sodium salt of oxyethyl sulphonic acid:
  • fatty acid amides of the low aliphatic aminosulphonic acid salts (general formulae CnH2n--1CONH-A1k-SO3M and CnH2n+1-CO--NHA1k-SO3M) e. g. the oleic acid amide of the sodium salt of aminoethyl sulphonic acids:
  • desulphurization with the said substances has the advantage that the substances have a completely neutral reaction in aqueous solution, so that scarcely any attack on thebobbins, vats and so forth can take place. It is true that it has already been proposed to desulphurize with neutral substances, e. g. with alcohol vapours and alcoholic solutions of glycerin, grape sugar and cane sugar (U. S. Patent No. 1,651,404 and French Patent No. 655,- '729).
  • the "said substances act as desulphuriz'ing agents.
  • the desulphurizing action is a property of the free sulphonic acids; in the :case of substances coming in class 4, it is, for
  • the known advantages of the said substances as scrooping agents come particularly to thefore when the substances are simultaneously used for desulphurizing purposes. More particularly-the simultaneous desulphurization and scrooping with the same treatment baths is advantageous when the whole of the after-treatment is carried out on the bobbin or in the pot, since in such cases the purity of the treatment liquids is a matter of' primary importance.
  • the artificial filament after-treated according to the invention is characterized not only by its cleanness, but also to anoutstanding and pre-eminent extent by its softness and flexibility.
  • WhatI claim is 1.
  • the step of desulphurizing the filament by, treatment with a neutral aqueous solution of at least one substance selected from thefollowing group of neutral water-soluble wetting and scroo'ping' agents of fatty character: salts of sulphuric acid esters of high molecular alcohols and the fatty acid esters of low aliphatic oxy-sulphonic acid salts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Artificial Filaments (AREA)
US704204A 1933-01-12 1933-12-27 Method of desulphurizing artificial filaments of viscose Expired - Lifetime US2066371A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE428955X 1933-01-12

Publications (1)

Publication Number Publication Date
US2066371A true US2066371A (en) 1937-01-05

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ID=6477533

Family Applications (1)

Application Number Title Priority Date Filing Date
US704204A Expired - Lifetime US2066371A (en) 1933-01-12 1933-12-27 Method of desulphurizing artificial filaments of viscose

Country Status (5)

Country Link
US (1) US2066371A (en(2012))
BE (1) BE400821A (en(2012))
FR (2) FR428955A (en(2012))
GB (2) GB428955A (en(2012))
NL (1) NL38535C (en(2012))

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418660A (en) * 1943-04-24 1947-04-08 Du Pont Manufacture of regenerated cellulose structures
US2585141A (en) * 1945-09-05 1952-02-12 Celanese Corp Treatment of viscose products
US2670266A (en) * 1949-12-08 1954-02-23 Du Pont Textile bleach-finish process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418660A (en) * 1943-04-24 1947-04-08 Du Pont Manufacture of regenerated cellulose structures
US2585141A (en) * 1945-09-05 1952-02-12 Celanese Corp Treatment of viscose products
US2670266A (en) * 1949-12-08 1954-02-23 Du Pont Textile bleach-finish process

Also Published As

Publication number Publication date
GB429165A (en) 1935-05-24
GB428955A (en) 1935-05-22
FR766877A (fr) 1934-07-05
BE400821A (en(2012))
FR428955A (fr) 1911-09-12
NL38535C (en(2012))

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