GB273280A - Processes for the preparation of the cellulose compounds designated as "viscose" - Google Patents

Processes for the preparation of the cellulose compounds designated as "viscose"

Info

Publication number
GB273280A
GB273280A GB1581227A GB1581227A GB273280A GB 273280 A GB273280 A GB 273280A GB 1581227 A GB1581227 A GB 1581227A GB 1581227 A GB1581227 A GB 1581227A GB 273280 A GB273280 A GB 273280A
Authority
GB
United Kingdom
Prior art keywords
cellulose
carbon disulphide
excess
vacuum
added
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
Application number
GB1581227A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JACQUES MARC BERNARD
Original Assignee
JACQUES MARC BERNARD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JACQUES MARC BERNARD filed Critical JACQUES MARC BERNARD
Priority to GB1581227A priority Critical patent/GB273280A/en
Publication of GB273280A publication Critical patent/GB273280A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

273,280. Bernard, J. M. June 24, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 25, 1927]. Cellulose xanthates.-Cellulose is treated with excess of carbon disulphide in a closed vessel, the excess of carbon disulphide is removed and recovered by means of a vacuum, and caustic soda solution is then added, the vacuum preferably being re-imposed to recover remaining carbon disulphide. The cellulose, which may be in the form of pieces of wood-pulp sheet or in other form such as cotton, is placed in a churning apparatus and excess of carbon disulphide is added, either as liquid, vapour, or both. When the cellulose is saturated, the excess of carbon disulphide is removed by drawing it off at the bottom and by applying a vacuum for a few moments. Caustic soda solution is then added in some excess, and the apparatus is rotated more slowly until the xanthate is formed. A vacuum may be applied during the whole or a part of this stage of the process. The product is placed in a mixer with the necessary quantity of water, with or without soda, to give a desired percentage of cellulose and viscosity. Alternatively a single mixing apparatus may be employed for the whole process, the speed of rotation being varied at the several stages of the process; or the saturation of the cellulose with carbon disulphide may be effected in the churning apparatus, the product being then transferred, as a whole or in portions, to the mixer containing the soda solution. The cellulose employed may have been subjected to a preliminary mercerizing treatment with caustic soda, followed by washing. The viscose produced is suitable for making films and filaments.
GB1581227A 1927-06-14 1927-06-14 Processes for the preparation of the cellulose compounds designated as "viscose" Expired GB273280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1581227A GB273280A (en) 1927-06-14 1927-06-14 Processes for the preparation of the cellulose compounds designated as "viscose"

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1581227A GB273280A (en) 1927-06-14 1927-06-14 Processes for the preparation of the cellulose compounds designated as "viscose"

Publications (1)

Publication Number Publication Date
GB273280A true GB273280A (en) 1928-09-14

Family

ID=10065923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1581227A Expired GB273280A (en) 1927-06-14 1927-06-14 Processes for the preparation of the cellulose compounds designated as "viscose"

Country Status (1)

Country Link
GB (1) GB273280A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459250A1 (en) * 1979-06-15 1981-01-09 Snia Viscosa PROCESS FOR THE PREPARATION AND WIRING OF VISCOSE AND PRODUCTS OBTAINED

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459250A1 (en) * 1979-06-15 1981-01-09 Snia Viscosa PROCESS FOR THE PREPARATION AND WIRING OF VISCOSE AND PRODUCTS OBTAINED

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