GB688781A - Improvements in or relating to the production of filamentary materials of high tenacity - Google Patents

Improvements in or relating to the production of filamentary materials of high tenacity

Info

Publication number
GB688781A
GB688781A GB25519/50A GB2551950A GB688781A GB 688781 A GB688781 A GB 688781A GB 25519/50 A GB25519/50 A GB 25519/50A GB 2551950 A GB2551950 A GB 2551950A GB 688781 A GB688781 A GB 688781A
Authority
GB
United Kingdom
Prior art keywords
solvent
cans
pict
sliver
cellulose
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
GB25519/50A
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.)
Celanese Corp
Original Assignee
Celanese Corp
Celanese Corp of America
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 Celanese Corp, Celanese Corp of America filed Critical Celanese Corp
Publication of GB688781A publication Critical patent/GB688781A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/221—Preliminary treatments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/76—Depositing materials in cans or receptacles
    • B65H54/80—Apparatus in which the depositing device or the receptacle is rotated
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • 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
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • 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
    • D01F2/24—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives
    • D01F2/28—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate
    • D01F2/30—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from cellulose derivatives from organic cellulose esters or ethers, e.g. cellulose acetate by the dry spinning process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Abstract

<PICT:0688781/IV (a)/1> <PICT:0688781/IV (a)/2> <PICT:0688781/IV (a)/3> <PICT:0688781/IV (a)/4> Cellulose organic ester filamentary textil materials, e.g. filaments, yarns, tow and ribbon, of improved tenacity, are produced by extruding a solution of the cellulose ester, e.g. a solution of cellulose acetate, propionate, butyrate, acetatepropionate or acetate-butyrate in acetone, ethylene chloride or a mixture of methylene chloride and ethyl alcohol or of chloroform and methyl or ethyl alcohol, and setting the shaped material in such a way that it contains substantially more than 1 per cent of its weight of solvent, then reducing the solvent-content to less than 1 per cent by weight, by passing a fluid capable of removing the solvent and inert with respect to the cellulose derivative through a loose mass of the material, and finally stretching the so-treated material. The fluid may be air or other gas or a liquid miscible with the solvent and may contain a small proportion of the solvent. Following the stretching operation, the materials may be saponified, e.g. with aqueous sodium hydroxide, sodium carbonate or ammonium hydroxide. A tow of stretched material may be breaker-drafted to produce a sliver of staple fibres, the sliver twisted to a roving and the roving saponified as described in Specification 667,147. As applied to cellulose acetate threads, the thread is collected from the spinning cell in a sliver-can 14 (Fig. 6) provided with a perforated base. The filled cans are then mounted on a chamber 18 (Fig. 2) provided with a perforated upper wall 21, and air is drawn through the can by connection of conduit 23 to an exhaustion solvent recovery system. The threads are then withdrawn from the cans (Fig. 3) and passed through a stretching chamber 26, which may be of the type described in Specification 570,588, and contains steam under elevated temperature and pressure. The threads are again collected in sliver-cans 14 and the filled cans mounted between caps 32, 33 (Fig. 4). Saponifying liquid, e.g. aqueous sodium hydroxide containing sodium acetate at 60 DEG C., from a tank 37, is forced upwardly through the cans by a pump 36. The material is then washed with water introduced at 49 and discharged at 52. Finally, drying is effected by drawing air through the mass in the cans.
GB25519/50A 1949-10-19 1950-10-19 Improvements in or relating to the production of filamentary materials of high tenacity Expired GB688781A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US688781XA 1949-10-19 1949-10-19

Publications (1)

Publication Number Publication Date
GB688781A true GB688781A (en) 1953-03-11

Family

ID=22085287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25519/50A Expired GB688781A (en) 1949-10-19 1950-10-19 Improvements in or relating to the production of filamentary materials of high tenacity

Country Status (1)

Country Link
GB (1) GB688781A (en)

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