GB962622A - Improvements in or relating to manufacture of threads and staple fibres of regenerated cellulose from viscose - Google Patents
Improvements in or relating to manufacture of threads and staple fibres of regenerated cellulose from viscoseInfo
- Publication number
- GB962622A GB962622A GB1612/63A GB161263A GB962622A GB 962622 A GB962622 A GB 962622A GB 1612/63 A GB1612/63 A GB 1612/63A GB 161263 A GB161263 A GB 161263A GB 962622 A GB962622 A GB 962622A
- Authority
- GB
- United Kingdom
- Prior art keywords
- viscose
- sodium
- formaldehyde
- compound
- weight
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/07—Aldehydes; Ketones
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
- D01F2/08—Composition of the spinning solution or the bath
- D01F2/10—Addition to the spinning solution or spinning bath of substances which exert their effect equally well in either
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
- Y10S264/27—Process of spinning viscose where viscose has high degree of polymerization
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
962,622. Wet spinning viscose. ALGEMENE KUNSTZIJDE UNIE N.V. Jan. 14, 1963 [Jan. 17, 1962], No. 1612/63. Drawings to Specification. Heading B5B. In the production of regenerated cellulose filaments by wet spinning viscose into a spinning bath consisting of a dilute aqueous solution of sulphuric acid, containing sodium sulphate and 1-9% of zinc sulphate (expressed as the anhydrous salt), and thereafter stretching the threads so formed, the viscose contains formaldehyde and at least one " modifier," i.e. a compound which causes the filaments to have a skin structure, and the viscose is prepared by dissolving cellulose xanthate in an aqueous solution of an alkali metal hydroxide to which formaldehyde has been added. The modifier may be an amine, a quaternary ammonium compound, a carbamate, an ether having the general formula RO(CH 2 CH 2 O)nR<SP>1</SP>, where R is an alkyl or aryl group, R<SP>1</SP> is hydrogen or an alkyl or aryl group and n is from 1 to 4. Polyethylene glycol having a molecular weight of 200 to 4500 is preferably used as a modifier. It is desirable that the extrusion of the viscose should be carried out in the presence of a cationactive compound such as lauryl or stearylpyridinium chloride, or that the viscose should contain (in addition to formaldehyde and a polyethylene glycol) a compound having the general formula in which n equals 8 to 24 and x+y=5 to 25. The formaldehyde is preferably dissolved in the alkali metal hydroxide solution immediately before the cellulose xanthate is mixed therewith. The dye preferably contains 0.05 to 0.1% by weight of formaldehyde based on the weight of the cellulose in the viscose. The proportion of polyethylene glycol and nitrogen compound in the viscose may vary between 0.3 and 5% by weight based on the cellulose in the viscose. Amines which may be used as modifiers are cyclohexylamine, chinoline, ethylene diamine, hexamethylene diamine, dipropylene triamine, dodecylamine and dibutylaminopropylamine. Quaternary ammonium compound which may be used as modifiers are benzyltrimethylammonium hydroxide, tetraethylammonium hydroxide, bromide or iodide, and tributylpropylammonium hydroxide. Carbamates which may be used as modifiers are sodium cyclohexyldithiocarbamate, sodium phenyldithiocarbamate, sodium morpholyl-N-dithiocarboxylate and sodium cyclohexylmonothiocarbamate. The ripeness of the viscose during spinning is preferably 8 to 20 (Hottennoth number), particularly 13 to 14.5. The spinning bath may contain 2% to 10% by weight of sulphuric acid, 3% to 26% of sodium sulphate and 1% to 9% of zinc sulphate (expressed as the anhydrous salts). The stretching of the freshly spun threads may be carried out in a bath of dilute sulphuric acid at 80‹ to 100‹ C. at a tension of 1 gram per denier. Specification 857,170 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US166908A US3153687A (en) | 1962-01-17 | 1962-01-17 | Production of viscose rayon |
Publications (1)
Publication Number | Publication Date |
---|---|
GB962622A true GB962622A (en) | 1964-07-01 |
Family
ID=22605174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1612/63A Expired GB962622A (en) | 1962-01-17 | 1963-01-14 | Improvements in or relating to manufacture of threads and staple fibres of regenerated cellulose from viscose |
Country Status (8)
Country | Link |
---|---|
US (1) | US3153687A (en) |
AT (1) | AT243427B (en) |
BE (1) | BE626103A (en) |
CH (1) | CH410270A (en) |
DE (1) | DE1220081B (en) |
ES (1) | ES284208A1 (en) |
GB (1) | GB962622A (en) |
NL (1) | NL287417A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE638523A (en) * | 1962-11-06 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2322981A (en) * | 1934-11-21 | 1943-06-29 | Ubbelohde Leo | Cellulose product |
US3018158A (en) * | 1959-05-05 | 1962-01-23 | Rayonier Inc | Viscose process |
-
0
- BE BE626103D patent/BE626103A/xx unknown
- NL NL287417D patent/NL287417A/xx unknown
-
1962
- 1962-01-17 US US166908A patent/US3153687A/en not_active Expired - Lifetime
-
1963
- 1963-01-04 CH CH8463A patent/CH410270A/en unknown
- 1963-01-11 DE DEA42064A patent/DE1220081B/en active Pending
- 1963-01-14 GB GB1612/63A patent/GB962622A/en not_active Expired
- 1963-01-16 ES ES284208A patent/ES284208A1/en not_active Expired
- 1963-01-16 AT AT33663A patent/AT243427B/en active
Also Published As
Publication number | Publication date |
---|---|
AT243427B (en) | 1965-11-10 |
DE1220081B (en) | 1966-06-30 |
NL287417A (en) | |
BE626103A (en) | |
ES284208A1 (en) | 1963-03-01 |
US3153687A (en) | 1964-10-20 |
CH410270A (en) | 1966-03-31 |
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