GB361760A - Manufacture of artificial fibres - Google Patents

Manufacture of artificial fibres

Info

Publication number
GB361760A
GB361760A GB7036/31A GB703631A GB361760A GB 361760 A GB361760 A GB 361760A GB 7036/31 A GB7036/31 A GB 7036/31A GB 703631 A GB703631 A GB 703631A GB 361760 A GB361760 A GB 361760A
Authority
GB
United Kingdom
Prior art keywords
bisulphate
per cent
cellulose
baths
ammonium
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
GB7036/31A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB361760A publication Critical patent/GB361760A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/26—Indicating devices
    • 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/003—Dredgers or soil-shifting machines for special purposes for uncovering conduits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
    • E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
    • E02F5/104—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water
    • E02F5/107—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables for burying conduits or cables in trenches under water using blowing-effect devices, e.g. jets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)

Abstract

Artificial filaments having a tenacity of more than 2 grams per denier are made by spinning viscoses prepared from unripened alkali cellulose or from alkali cellulose which is ripened for a shorter period than the normal, while employing coagulating baths containing 10-30 per cent of sulphuric acid and not less than 30 per cent of ammonium bisulphate. The ammonium bisulphate may be replaced wholly or partly by an equimolecular quantity of sodium or other bisulphate. It is advantageous almost to saturate the acid solution with bisulphate. The baths may contain additions such as glucose, zinc sulphate or glycerine, and it is preferred to maintain the baths at 30-50 DEG C. during the spinning operation. In examples, viscoses prepared from unripened or only slightly ripened alkali celluloses with the use of 30-60 per cent carbon disulphide or by kneading cellulose with caustic soda in a xanthate machine until swelling takes place and then adding 50 per cent carbon disulphide, are coagulated in water containing sulphuric acid, ammonium sodium bisulphates. Specifications 10094/06, [Class 2, Acids and salts, Organic &c.], 166,294, 170,024, 174,961, 192,214, and 334,030, [all in Class 2 (ii), Cellulose &c.], are referred to.
GB7036/31A 1930-03-06 1931-03-06 Manufacture of artificial fibres Expired GB361760A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE361760X 1930-03-06

Publications (1)

Publication Number Publication Date
GB361760A true GB361760A (en) 1931-11-26

Family

ID=6301624

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7036/31A Expired GB361760A (en) 1930-03-06 1931-03-06 Manufacture of artificial fibres

Country Status (4)

Country Link
US (1) US2044885A (en)
FR (1) FR712411A (en)
GB (1) GB361760A (en)
NL (2) NL55651C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491937A (en) * 1944-09-12 1949-12-20 Rayonier Inc Method of producing rayon filaments from viscose
US3277858A (en) * 1966-01-27 1966-10-11 Thomas J Athey Propulsion means for diver

Also Published As

Publication number Publication date
US2044885A (en) 1936-06-23
NL33975C (en)
FR712411A (en) 1931-10-02
NL55651C (en)

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