US2616278A - Textile material - Google Patents

Textile material Download PDF

Info

Publication number
US2616278A
US2616278A US81997A US8199749A US2616278A US 2616278 A US2616278 A US 2616278A US 81997 A US81997 A US 81997A US 8199749 A US8199749 A US 8199749A US 2616278 A US2616278 A US 2616278A
Authority
US
United States
Prior art keywords
staple fibers
saponification
medium
conduit
tank
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
US81997A
Inventor
Thomas H Hilliard
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.)
Canadian Celanese Ltd
Original Assignee
Canadian Celanese Ltd
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 Canadian Celanese Ltd filed Critical Canadian Celanese Ltd
Priority to US81997A priority Critical patent/US2616278A/en
Priority to GB6514/50A priority patent/GB677573A/en
Application granted granted Critical
Publication of US2616278A publication Critical patent/US2616278A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic System
    • D06M11/385—Saponification of cellulose-acetate
    • 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
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/049—Supporting filaments or the like during their treatment as staple fibres

Definitions

  • FIG. l is a front elevational view of the feed end of an apparatus for preparing and saponifying staple fibers having a basis of cellulose acetate or other organic acid ester of cellulose,
  • Fig. 2 is a front elevational view of the discharge end of the apparatus shown in Fig. 1,
  • Fig. 3 is a plan view of the portion of the apparatus shown in Fig. 1,
  • Fig. 4 is a plan view of the portion of the apparatus shown in Fig. 2,
  • Fig. 5 is a detail view, on an enlarged scale, of the centrifugal cutters that convert the tow to staple fibers
  • Fig. 6 is a detail view, on an enlarged scale, showing the baffle plates that impart turbulence to the mixture of saponification medium and staple fibers, being conveyed through the passageway, and
  • Fig. 7 is a view in section taken on the line I-! in Fig. 6, in the direction of the arrows.
  • the reference numeral II designates crimped tows of continuous filaments of cellulose acetate or other organic acid ester of cellulose, which are led from tow cans I2 over guide bars I3 and I4 to a guide bar I5 of a tow tightener, or tension device, indicated generally by reference numeral I6.
  • the tow tightener I6 comprises guide bars H, I 8 and I9 around which the tows II pass to form loops 2
  • the tows II After passing over the guide bar I9, the tows II pass under pulleys 22 and are guided by pulleys 23 onto feed rollers 24, which feed rollers are positively driven by means of a motor 25 operatively connected thereto by a belt (not shown) within the housing 25'.
  • the tows II after passing around the feed rollers 24, are guided by pulleys 26 and 2! to centrifugal cutters, indicated generally by reference numeral 28.
  • the centrifugal cutters 28 comprise casings 29 in which are positioned disks 3
  • are rotated at a high speed by any suitable means (not shown) through the shafts 32 by belt drives 34 trained around pulleys 35.
  • the tows I I enter the cutters 28 through apertures 33 in the casings 29 and are threaded into radially extending passageways 31 in the disks 3
  • the tows I I are drawn outwardly through the passageways 31 by centrifugal force, and the ends of said tows are severed into staple fiber form by cutting blades 33.
  • the speed of the feed rollers 24 relative to the speed of the disks 3 I, the length of the staple fibers produced may be varied readily over a wide range.
  • the staple fibers are sprayed and thoroughly wet with a saponification medium from conduits 39 that extend through the casings 29 of the centrifugal cutters 28.
  • the wet staple fibers then drop from the casings 29 into a funnel 4
  • is positioned in a tank 43 to which a saponification medium is pumped from a storage tank 44 through a conduit 45 by means of a pump 46.
  • the saponification medium also flows from the conduit 45 to the conduits 39 in the centrifugal cutters 28 through branch conduits 41.
  • the saponification medium As the saponification medium enters the tank 43, it is mixed thoroughly by bafiles 48 and 49 positioned therein, and then passes over heating coils 5
  • the level of the saponification medium in the tank 43 is regulated by an overflow pipe 52 that discharges through a conduit 53 back to the storage tank 44.
  • the saponification medium also overflows through apertures 54 in the funnel 4I into the enclosed passageway 42 and mixes with the staple fibers therein.
  • the enclosed passageway 42 which comprises a plurality of pipe sections 55 fastened together by couplings 53, is kept full by having its discharge end 51 raised above its feed end 58.
  • turbulence is imparted to the saponification medium by curved baflle plates 59, which may be positioned at each of the couplings 56. This insures a thorough wetting of the staple fibers by the saponification medium, and a rapid and uniform saponification of said fibers.
  • the saponification medium and staple fibers are discharged between baffles 39 onto a positively driven, wire mesh belt 3
  • permits the major portion of the saponification medium to drain from the staple fibers, and carries the staple fibers under a squeeze roll 65, which with roller 63 expresses more of the saponification medium from the staple fibers.
  • the saponification medium drained from the staple fibers and expressed therefrom by the squeeze roll 35 is oollected in a pan 63 and flows through a spout 31 to the storage tank 44 for further use.
  • the strength of the saponification medium in the tank 44 is maintained constant by intermittent or continuous addition thereto of a concentrated solution of the saponification agent from tank 63.
  • the volume of the saponification medium in the tank 44 is maintained constant by intermittent or continuous addition thereto of a quantity of water from the tank 69.
  • Valves I0 are provided in the lines for supplying the saponification medium and the water to regulate the feed thereof to the tank 44.
  • the staple fibers pass between squeeze rolls II and I2 to express more of the saponification medium therefrom.
  • the staple fibers then drop onto a positively driven wire mesh belt I3, which is trained around rollers I4 and I5, and idler I6.
  • the Wire mesh belt 13 carries the staple fibers under a series of water sprays I! to wash the residue of the saponification medium therefrom.
  • the staple fibers then pass under a squeeze roll 8
  • the liquid drained from the staple fibers is collected in a pan 84 and discharged as waste through a conduit 85.
  • a shield 83 mounted above the endless belt 83 prevents the staple fibers from overshooting said belt.
  • the endless belt 83 is trained around rollers 88 and 89 and may be driven in either direction by means of a motor 9
  • the endless belt 83 drops the staple fibers into either of two conventional centrifugal extractors, indicated generally by reference numerals 93 and 94, positioned at opposite ends of said belt.
  • the use of two extractors permits of continuous operation since, while one extractor is removing the water from the staple fibers therein, the other extractor may be loaded and vice versa.
  • the extractors may be unloaded by means of suction from a wool type fan, which will open up the staple fibers to facilitate drying and discharge said fibers directly into a dryer (not shown) wherein they are dried.
  • the dried staple fibers may then be sprayed with a spinning lubricant and spun into yarn either alone, or in admixture with fibers of other types.
  • the staple fibers may be passed through a set of wringer rolls similar to the wringer rolls H and- 12 directly as they drop off the endless wire mesh belt '13 to remove the water therefrom. After emerging from between said wringer rolls, the staple fibers may be dried and spun into yarn as set forth above.
  • Example Crimped tows of cellulose acetate having a total denier of 288,000 and an acetyl value of 54.5%, calculated as acetic acid, are fed at the rate of 500 pounds per hour into the apparatus shown in the accompanying drawings.
  • the staple fibers produced from this tow are treated in this apparatus for a period of 18 seconds with a saponification medium comprising an aqueous solution containing 0.975% by weight of sodium hydroxide and 1.7% by weight of sodium acetate maintained at a temperature of 90 C.
  • the staple fibers are then separated from the saponification medium, washed and dried.
  • the saponified staple fibers have an acetyl value of 44% calculated as acetic acid and possess excellent spinning properties.
  • Apparatus for the treatment of fibrous material comprising, in combination with a cutter for converting continuous filaments into staple fibers, means adjacent to said cutter for spraying a liquid medium onto said staple fibers as formed, a funnel positioned beneath said cutter for receiving the staple fibers and the liquid medium directly therefrom, a tank for holding a liquid medium in which said funnel is mounted, a horizontally disposed, completely enclosed conduit, having its discharge end elevated with respect to the other end thereof, operatively connected to said funnel, apertures in the walls of said funnel for admitting additional liquid medium into said funnel whereby the liquid medium flows into said funnel and through said conduit, and baffle plates positioned in said conduit for imparting turbulence to the liquid medium during its passage therethrough, the construction and arrangement being such that said conduit is maintained substantially completely filled with liquid medium during the operation of said apparatus.

Description

Nov. 4, 1952 T. H. HILLIARD TEXTILE MATERIAL 2 SHEETS-SHEET 1 Filed March 17, 1949 INVENTOR.
THoMAs H. NLLLIARD.'
BY {W TTORNEYS.
Nov. 4, 1952 T. H. HILLIARD TEXTILE MATERIAL" 2 SHEETSSHEET 2 Filed March 17, 1949 e 5 2 L. 5 s
s w 5 33 a 2 5 O O n 2 n/a w. O 0 M25? M82 My. a 2 H P k .U 4 m w v 6 5 m z 3. IIHHI, a u "ml [4 A 2 1 e T 2 H I/WW 1 j, 8 I K 4 m J m um I INVENTOR.
THOMAS H- HILLIARD BY XM'W ATTORNEYS.
Patented Nov. 4, 1952 UNITED PATENT OFFICE $616,273 TEXTHJE MATERIAL fifiers and to sgig p11; iib'q'rs Sp P mm- In rrlgi' t imp. (we h mn buty f wick s ank rs andw nhanq th 'fi ils.
t'ia y' s pgnifiesi s'fibe s' having a h.
bi- 2" proved apparatu 1219 in nfimtim. and expsad' to Canadian Cgl aimse noCanada M ,1; iv, 194a, Sgrial No. 81,997
,,91aim%= 13.)
a. further quantity of the treating mgdium 139 @219. W sfia lfi fibs 9 f rm m zi u' er w. l'f k fiiri @h id 'mix u hr u lh'an em (2. 95% pa sa w wh mm h d redtreatm m i th st n fibfl 89 m ce "a hfi fii'fi separating the sfiaplfib'ers from the treating med um and wafin n and dr n th same! In ac ordalifkw this nv r ion wn inqq s filam nt aving a a is of m ls: wan ac 19$?r ropiona ahdqfilli ms bu a d mix r an acid J e s @f 1 1?! $1 9 as wl fii a atsa ropi y'a e nd llu @wafi w t at i 6i all des r q dwier ar 'i rm sl n o a bun l of ow and su t, ii tQ' tap e fib r n th b wi b e utt n m x- 5; 'Pre fi fabl the" c n? il-1 filam nt am .m s mite? n b n w htq u t l Q-@115 by 'd yi wit bl crim in mm? 91 s. ing'bgx a ratfisl mi T11? sta fi. fib Pmdwsi th n 'a'mnifi d by firmin mixtur h re f with. a amn at qn md m th wn n ficgti bein eqae j w lfi ms: m Purs 91 s apl fih rs nd san n cat n m "u'mifi mov ng thr ugh an @9195'55 afi a w wa The mizstu e 1Q? wank; fihbr i an s fii t ymedium' .sh uld have. b 992 mm o raq .hlavq 9: a lg f 2h? Stank: 1312?. n
' ma ri lhavin ai pn i Won 9! btw n bu After the staple fibers have been saponified, they are separated from the saponification medium, washed to free them from the residue of said medium and dried. They are then ready to be spun into yarn.
A preferred embodiment of the apparatus of my invention is diagramatically illustrated in the accompanying drawings, in which Fig. l is a front elevational view of the feed end of an apparatus for preparing and saponifying staple fibers having a basis of cellulose acetate or other organic acid ester of cellulose,
Fig. 2 is a front elevational view of the discharge end of the apparatus shown in Fig. 1,
Fig. 3 is a plan view of the portion of the apparatus shown in Fig. 1,
Fig. 4 is a plan view of the portion of the apparatus shown in Fig. 2,
Fig. 5 is a detail view, on an enlarged scale, of the centrifugal cutters that convert the tow to staple fibers,
Fig. 6 is a detail view, on an enlarged scale, showing the baffle plates that impart turbulence to the mixture of saponification medium and staple fibers, being conveyed through the passageway, and
Fig. 7 is a view in section taken on the line I-! in Fig. 6, in the direction of the arrows.
Like reference numerals indicate like parts throughout the several views of the drawings.
Referring now to the drawings, the reference numeral II designates crimped tows of continuous filaments of cellulose acetate or other organic acid ester of cellulose, which are led from tow cans I2 over guide bars I3 and I4 to a guide bar I5 of a tow tightener, or tension device, indicated generally by reference numeral I6. The tow tightener I6 comprises guide bars H, I 8 and I9 around which the tows II pass to form loops 2|, which serve to maintain the desired tension on said tows. After passing over the guide bar I9, the tows II pass under pulleys 22 and are guided by pulleys 23 onto feed rollers 24, which feed rollers are positively driven by means of a motor 25 operatively connected thereto by a belt (not shown) within the housing 25'. The tows II, after passing around the feed rollers 24, are guided by pulleys 26 and 2! to centrifugal cutters, indicated generally by reference numeral 28.
The centrifugal cutters 28 comprise casings 29 in which are positioned disks 3| mounted on shafts 32 journalled in bearings 33. The disks 3| are rotated at a high speed by any suitable means (not shown) through the shafts 32 by belt drives 34 trained around pulleys 35. The tows I I enter the cutters 28 through apertures 33 in the casings 29 and are threaded into radially extending passageways 31 in the disks 3|. As the disks 3| revolve, the tows I I are drawn outwardly through the passageways 31 by centrifugal force, and the ends of said tows are severed into staple fiber form by cutting blades 33. By adjusting the speed of the feed rollers 24 relative to the speed of the disks 3 I, the length of the staple fibers produced may be varied readily over a wide range.
Immediately after being formed, the staple fibers are sprayed and thoroughly wet with a saponification medium from conduits 39 that extend through the casings 29 of the centrifugal cutters 28. The wet staple fibers then drop from the casings 29 into a funnel 4| leading to a horizontally disposed enclosed passageway, indicated generally by reference numeral 42, in which the saponification is effected. The funnel 4| is positioned in a tank 43 to which a saponification medium is pumped from a storage tank 44 through a conduit 45 by means of a pump 46. The saponification medium also flows from the conduit 45 to the conduits 39 in the centrifugal cutters 28 through branch conduits 41. As the saponification medium enters the tank 43, it is mixed thoroughly by bafiles 48 and 49 positioned therein, and then passes over heating coils 5|, through which a heating fiuid such as steam, is circulated, to control the temperature of said saponification medium. The level of the saponification medium in the tank 43 is regulated by an overflow pipe 52 that discharges through a conduit 53 back to the storage tank 44.
The saponification medium also overflows through apertures 54 in the funnel 4I into the enclosed passageway 42 and mixes with the staple fibers therein. The enclosed passageway 42, which comprises a plurality of pipe sections 55 fastened together by couplings 53, is kept full by having its discharge end 51 raised above its feed end 58. As the saponification medium and staple fibers pass through the enclosed passageway 42, turbulence is imparted to the saponification medium by curved baflle plates 59, which may be positioned at each of the couplings 56. This insures a thorough wetting of the staple fibers by the saponification medium, and a rapid and uniform saponification of said fibers.
After passing through the enclosed passageway 42, the saponification medium and staple fibers are discharged between baffles 39 onto a positively driven, wire mesh belt 3| which is trained around positively driven rollers 32 and 33 and idler roller 64. The wire mesh belt 3| permits the major portion of the saponification medium to drain from the staple fibers, and carries the staple fibers under a squeeze roll 65, which with roller 63 expresses more of the saponification medium from the staple fibers. The saponification medium drained from the staple fibers and expressed therefrom by the squeeze roll 35 is oollected in a pan 63 and flows through a spout 31 to the storage tank 44 for further use. The strength of the saponification medium in the tank 44 is maintained constant by intermittent or continuous addition thereto of a concentrated solution of the saponification agent from tank 63. Similarly, the volume of the saponification medium in the tank 44 is maintained constant by intermittent or continuous addition thereto of a quantity of water from the tank 69. Valves I0 are provided in the lines for supplying the saponification medium and the water to regulate the feed thereof to the tank 44.
From the squeeze roll 65, the staple fibers pass between squeeze rolls II and I2 to express more of the saponification medium therefrom. The staple fibers then drop onto a positively driven wire mesh belt I3, which is trained around rollers I4 and I5, and idler I6. The Wire mesh belt 13 carries the staple fibers under a series of water sprays I! to wash the residue of the saponification medium therefrom. The staple fibers then pass under a squeeze roll 8| to express a portion of the wash water therefrom and are deposited by means of a positively driven roller 82 onto an endless belt 83. The liquid drained from the staple fibers is collected in a pan 84 and discharged as waste through a conduit 85. A shield 83 mounted above the endless belt 83 prevents the staple fibers from overshooting said belt.
The endless belt 83 is trained around rollers 88 and 89 and may be driven in either direction by means of a motor 9| operatively connected thereto through a chain drive 92. The endless belt 83 drops the staple fibers into either of two conventional centrifugal extractors, indicated generally by reference numerals 93 and 94, positioned at opposite ends of said belt. The use of two extractors permits of continuous operation since, while one extractor is removing the water from the staple fibers therein, the other extractor may be loaded and vice versa. After the major portion of the water has been removed from the staple fibers, the extractors may be unloaded by means of suction from a wool type fan, which will open up the staple fibers to facilitate drying and discharge said fibers directly into a dryer (not shown) wherein they are dried. The dried staple fibers may then be sprayed with a spinning lubricant and spun into yarn either alone, or in admixture with fibers of other types.
Instead of removing the water from the staple fibers by means of the extractors 93 and 94, the staple fibers may be passed through a set of wringer rolls similar to the wringer rolls H and- 12 directly as they drop off the endless wire mesh belt '13 to remove the water therefrom. After emerging from between said wringer rolls, the staple fibers may be dried and spun into yarn as set forth above.
The following example is given to illustrate this invention further:
Example Crimped tows of cellulose acetate having a total denier of 288,000 and an acetyl value of 54.5%, calculated as acetic acid, are fed at the rate of 500 pounds per hour into the apparatus shown in the accompanying drawings. The staple fibers produced from this tow are treated in this apparatus for a period of 18 seconds with a saponification medium comprising an aqueous solution containing 0.975% by weight of sodium hydroxide and 1.7% by weight of sodium acetate maintained at a temperature of 90 C. The staple fibers are then separated from the saponification medium, washed and dried. The saponified staple fibers have an acetyl value of 44% calculated as acetic acid and possess excellent spinning properties.
While the process and apparatus of this invention have been described with particular reference to the preparation of partially saponified staple fibers having a basis of cellulose acetate or other organic acid ester of cellulose to which they are especially adapted, they may also be employed for the preparation of other types of staple fibers and for the treatment of various types of fibrous materials with liquids.
It is to be understood that the foregoing detailed description is given merely by way of illustration and that many variations may be made therein without departing from the spirit of my invention.
- for converting continuous filaments into staple fibers, means adjacent to said cutter for spraying a liquid medium onto said staple fibers as formed, a tank positioned adjacent to said cutter for holding a liquid medium, a horizontally disposed, completely enclosed conduit, having its discharge end elevated with respect to the other end thereof, operatively connected to said tank for introducing additional liquid medium into said conduit concomitantly with said staple fibers whereby the liquid medium, having entrained therein the staple fibers, fiows through said conduit, the construction arrangement being such that said conduit is maintained substantially completely filled with liquid medium during the operation of said apparatus.
2. Apparatus for the treatment of fibrous material comprising, in combination with a cutter for converting continuous filaments into staple fibers, means adjacent to said cutter for spraying a liquid medium onto said staple fibers as formed, a funnel positioned beneath said cutter for receiving the staple fibers and the liquid medium directly therefrom, a tank for holding a liquid medium in which said funnel is mounted, a horizontally disposed, completely enclosed conduit, having its discharge end elevated with respect to the other end thereof, operatively connected to said funnel, apertures in the walls of said funnel for admitting additional liquid medium into said funnel whereby the liquid medium flows into said funnel and through said conduit, and baffle plates positioned in said conduit for imparting turbulence to the liquid medium during its passage therethrough, the construction and arrangement being such that said conduit is maintained substantially completely filled with liquid medium during the operation of said apparatus.
THOMAS H. HILLIARD.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,627,037 Kampf et al May 3, 1927 1,962,139 Dreyfus June 12, 1934 2,086,888 Zetzsche July 13, 1937 2,265,795 Bauer et al. Dec. 9, 1941 2,269,563 Taylor et al Jan. 13, 1942 2,384,032 Jackson Sept. 4, 1945 2,418,125 Koster Apr. 1, 1947 FOREIGN PATENTS Number Country Date 514,134 Great Britain Oct. 31, 1939 531,020 Germany Aug. 4, 1931
US81997A 1949-03-17 1949-03-17 Textile material Expired - Lifetime US2616278A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US81997A US2616278A (en) 1949-03-17 1949-03-17 Textile material
GB6514/50A GB677573A (en) 1949-03-17 1950-03-15 Process and apparatus for the treatment of loose textile fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81997A US2616278A (en) 1949-03-17 1949-03-17 Textile material

Publications (1)

Publication Number Publication Date
US2616278A true US2616278A (en) 1952-11-04

Family

ID=22167736

Family Applications (1)

Application Number Title Priority Date Filing Date
US81997A Expired - Lifetime US2616278A (en) 1949-03-17 1949-03-17 Textile material

Country Status (2)

Country Link
US (1) US2616278A (en)
GB (1) GB677573A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840394A (en) * 1952-02-14 1958-06-24 Rohr Aircraft Corp Flexible joint engine exhaust duct with bellows seal
US2908045A (en) * 1955-10-20 1959-10-13 Eastman Kodak Co Method for removing false twist and longitudinal folds from continuous filament crimped tow

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1627037A (en) * 1924-12-18 1927-05-03 Kampf Adolf Method of loosening parallel fiber bunches by the wet process
DE531020C (en) * 1929-02-08 1931-08-04 I G Farbenindustrie Akt Ges Device for loosening and curling cut synthetic fibers
US1962139A (en) * 1928-06-08 1934-06-12 Celanese Corp Saponification of cellulose esters
US2086888A (en) * 1934-12-24 1937-07-13 Ig Farbenindustrie Ag Manufacture of a substitute for wool
GB514134A (en) * 1937-11-20 1939-10-31 British Celanese Improvements in or relating to the treatment of filaments, fibres or yarns of organic esters of cellulose
US2265795A (en) * 1935-11-29 1941-12-09 North American Rayon Corp Apparatus for treatment of staple fiber
US2269563A (en) * 1938-10-26 1942-01-13 Celanese Corp Collection, treatment, and disposal of staple fiber produced by cutting continuous filaments
US2384032A (en) * 1942-04-06 1945-09-04 American Enka Corp Manufacture of staple fiber
US2418125A (en) * 1941-08-13 1947-04-01 American Viscose Corp Method and apparatus for producing crimped staple fibers

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1627037A (en) * 1924-12-18 1927-05-03 Kampf Adolf Method of loosening parallel fiber bunches by the wet process
US1962139A (en) * 1928-06-08 1934-06-12 Celanese Corp Saponification of cellulose esters
DE531020C (en) * 1929-02-08 1931-08-04 I G Farbenindustrie Akt Ges Device for loosening and curling cut synthetic fibers
US2086888A (en) * 1934-12-24 1937-07-13 Ig Farbenindustrie Ag Manufacture of a substitute for wool
US2265795A (en) * 1935-11-29 1941-12-09 North American Rayon Corp Apparatus for treatment of staple fiber
GB514134A (en) * 1937-11-20 1939-10-31 British Celanese Improvements in or relating to the treatment of filaments, fibres or yarns of organic esters of cellulose
US2269563A (en) * 1938-10-26 1942-01-13 Celanese Corp Collection, treatment, and disposal of staple fiber produced by cutting continuous filaments
US2418125A (en) * 1941-08-13 1947-04-01 American Viscose Corp Method and apparatus for producing crimped staple fibers
US2384032A (en) * 1942-04-06 1945-09-04 American Enka Corp Manufacture of staple fiber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840394A (en) * 1952-02-14 1958-06-24 Rohr Aircraft Corp Flexible joint engine exhaust duct with bellows seal
US2908045A (en) * 1955-10-20 1959-10-13 Eastman Kodak Co Method for removing false twist and longitudinal folds from continuous filament crimped tow

Also Published As

Publication number Publication date
GB677573A (en) 1952-08-20

Similar Documents

Publication Publication Date Title
US2552078A (en) Apparatus for dyeing and after treating fibers
US4064636A (en) Apparatus for delinting cottonseed
US2756647A (en) Method of incorporating quaternary ammonium compounds in paper
US4158297A (en) Impregnator/rinser
US2616278A (en) Textile material
US2079094A (en) Apparatus for opening staple fibers
GB286603A (en) Process of and apparatus for making bands of artificial fibres
US2134160A (en) Manufacture of artificial staple fibers
US4213218A (en) Impregnator/rinser
US3365752A (en) Continuous processing machine for scouring, dyeing and carding wool fibers
US2384032A (en) Manufacture of staple fiber
US2264236A (en) Production and treatment of bast fibers
EP0030670A1 (en) Method for scouring chemical fibres subsequent to the spinning thereof
US2263591A (en) Scutching machine
US2144785A (en) Apparatus for the production of artificial silk
US273198A (en) Machine foe
US1799685A (en) Emil gminder
US2233418A (en) Manufacture of staple fiber
US2696147A (en) Staple processing device
US2130681A (en) Process and apparatus for deriving fiber from flax straw or the like
US2274542A (en) Reed-forming device
GB267548A (en) Improvements in and relating to method and apparatus for dyeing
US3025573A (en) Apparatus for processing of vegetable fibers
US2953424A (en) Aftertreatment of tows consisting of continuous artificial filaments
US1815493A (en) Device for treating fibers