US2152620A - Manufacture of artificial threads, filaments, and the like - Google Patents

Manufacture of artificial threads, filaments, and the like Download PDF

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Publication number
US2152620A
US2152620A US66490A US6649036A US2152620A US 2152620 A US2152620 A US 2152620A US 66490 A US66490 A US 66490A US 6649036 A US6649036 A US 6649036A US 2152620 A US2152620 A US 2152620A
Authority
US
United States
Prior art keywords
cakes
cake
drying
threads
column
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
US66490A
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English (en)
Inventor
Morton Eric Andrew
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Application granted granted Critical
Publication of US2152620A publication Critical patent/US2152620A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D01D10/0418—Supporting filaments or the like during their treatment as cakes or similar coreless thread packages

Definitions

  • the hot air or other gas is caused to pass 15 slowly and evenly through the cake from the inside to the outside, that is to say in such manner that during the drying process no path is allowed to form through which the drying air or gas can pass more rapidly than through the 20 remainder of the cake. If such path be allowed to form, the thread adjacent the path dries more rapidly than the rest, thus tending to produce strain which it is the object of the present invention to avoid. It should be particularly noted 25 that the process according to this invention is not applicable tocakes during the formation of which the funnel which guides the threads into the spinning box traverses too slowly up and down the centre of the box.
  • a cake may be suitably treated according to this invention, it is necessary that the threads should cross one another at an angle of at least 12.
  • a suitable angle for this purpose is, for example, 15, but the invention is not 35 limited to the treatment of cakes in which the threads cross at this particular angle. This crossing of the threads in the cake ensures that the drying air can be passed through the cake without disturbing it or producing uneven pas- 40 sages through it.
  • a number of cakes for example 'four or six, are formed into a vertical pile with their axes coinciding, the lower surface of the lowercake and the upper surface of the top 45 cake being closedby means such as plates in order to prevent the escape of the hot air which is introduced into the hollow space inside the cakes through a pipe leading through either the upper or lower plate or both.
  • the upper plate is ar- 50 ranged so that it is free to move and remain in contact with the top cake as the cakes contract during the drying.
  • the air may conveniently be supplied at a temperature of. from to-100 centigrade, and at the commencement of the 66 y it reaches the outside of the cake. As the process of removal of moisture from the cake proceeds, the cake becomes more permeable to the air and the air leaving the outside of the cake becomes warmer andcontains less water.
  • A is a case or chest on top of which rests a plate B to which the per,- forated pipe or tube C is attached.
  • Cakes D are placed around the tube C,..the lower cake resting upon the plate B while the other cakes form a vertical pile abovethe lowest cake.
  • a sleeve E fits loosely around the upper part of the tube C and is provided at its lower end with a flange F which rests on the upper surface of the topmost cake, and a weight G rests on the flange F.
  • Hot air enters the case A and passes up the tube C and through the perforations thereof and thence through the walls of the cakes D, carrying the moisture with it in such a manner that the inner surface of the cake is dried first and the outer surface last.
  • the improvements which comprise: first controlling the traverse during spinning to cause the threads of the cake to cross each other at an angle of at least 12; later aligning and directly contacting the wet cakes from said liquid treatment into a hollow vertical column without'sep arators and with the inner layers of the cakes unsupported and free to contract, closing the ends of said column, supplying gaseous dryin'g medium into the hollow interior of said column at points distributed axially therealong and spaced inwardly from the inner layers of said cakes whereby the same are free to contract upon drying, and
  • the angle of winding compels even passage of said gaseous medium through said cakes gradually displacing the moisture through the outside layers, and weighting said column to take up axial shrinkage and maintain sai d even passage during the drying operation.
  • the improvements which comprise: first controlling the traverse during spinning to cause the threads of the cakes to cross each other at an angle of at least 12; later aligning the wet cakes from said liquid treatment into a vertical column of contacting cakes without separators and without any obstruction to the inner layers of said cakes, deforming said column by forming therein aligned radial indentations whereby the outer layers of said cakes are free to contract upon drying, closing the ends of said column, supplying gaseous drying medium into the hollow interior of said column at points distributed axially therealong and spaced inwardly from the inner layers of said cakes whereby the same are free to contract upon drying, and the angle of winding compels even passage of said gaseous drying medium through said cakes gradually displacing the moisture through the outside layers, and weighting said column to take up axial shrinkage and maintain said even passage of aseous drying medium during the drying opera tion.
  • the improvements which comprise aligning and contacting the wet cakes from said liquid treatment into a vertical column without separators which would prevent thread to threadcontact between the cakes and without radial support for the inner layers of said cakes, closing the ends of said column, supplying hot air into the hollow interior of said column at points distributed axially therealong and spaced inwardly from the inner layers of said cakes whereby the same are free to contract upon drying, and causing the hot air to pass through the cake from the inside to the outside, so that moisture is gradually displaced from the inside layer of the cake to and through the outside layer, the said outside layer being the last to loseits moisture.
  • the process of reducing drying strains and irregularities which comprises first controlling the traverse of said thread projection to cause the threads of the cakes to cross each other at an angle of at least 12 whereby relatively open cake structure is produced which permits even passage of drying medium therethrough but which contracts axially for a substantial portion of its height upon drying, removing said relatively open structure cakes from said confining walls and subjecting them to liquid treatment, placing the wet cakes from said liquid treatment one above the other in direct contact without any separating members therebetween on a support which closes the bottom of the hollow vertical column formed by said cakes, the inner layers of said cakes remaining radially unsupported and thereby free to contract annularly upon drying, closing the top of said column and applying weight thereto suflicient to maintain said top closure and to cause thread to thread contact between said cakes
  • the process of reducing drying strains and irregularities which comprises first controlling the traverse during the box spinning to cause the threads of the cakes to cross each other at an angle of at least 12, thereafter placing the wet cakes from said liquid treatment one above the other in direct thread to thread contact without any separating members on a support which closes the bottom of the hollow vertical column thereby formed of said cakes, the inner layers of said cakes being radially unsupported and thereby free to contract upon drying, deforming said column by forming thereinaligned radial indentations whereby the outer layers of said cakes are free to contract upon drying, closing the top of said column and applying thereto a weight concentric therewith, supplying gaseous drying medium into the hollow interior of said column at points distributed axially therealong and angularly therebetween and spaced inwardly from the free inner layers of said cakes and under pressure sufficient to force said gaseous drying medium through said cakes to the outside thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Nonwoven Fabrics (AREA)
US66490A 1935-03-01 1936-02-29 Manufacture of artificial threads, filaments, and the like Expired - Lifetime US2152620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6513/35A GB452924A (en) 1935-03-01 1935-03-01 Improvements in and relating to the manufacture of artificial threads, filaments and the like

Publications (1)

Publication Number Publication Date
US2152620A true US2152620A (en) 1939-03-28

Family

ID=9815875

Family Applications (1)

Application Number Title Priority Date Filing Date
US66490A Expired - Lifetime US2152620A (en) 1935-03-01 1936-02-29 Manufacture of artificial threads, filaments, and the like

Country Status (6)

Country Link
US (1) US2152620A (en(2012))
BE (1) BE414003A (en(2012))
DE (1) DE685434C (en(2012))
FR (1) FR802447A (en(2012))
GB (1) GB452924A (en(2012))
NL (1) NL44210C (en(2012))

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440398A (en) * 1944-08-16 1948-04-27 Ivy D Fenwick Surgical glove drying apparatus
US2657472A (en) * 1951-04-27 1953-11-03 American Viscose Corp Drying wound textile package
US2737041A (en) * 1952-09-03 1956-03-06 Schweizerische Viscose Apparatus for the fluid treatment of textile thread packages
US2913802A (en) * 1953-07-16 1959-11-24 Johns Manville Thermal modification of acrylonitrile yarns
US3181251A (en) * 1961-12-08 1965-05-04 Anaconda Wire & Cable Co Strand treating reel
US3459012A (en) * 1964-07-06 1969-08-05 Dye House Products Inc Wool top dye system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440398A (en) * 1944-08-16 1948-04-27 Ivy D Fenwick Surgical glove drying apparatus
US2657472A (en) * 1951-04-27 1953-11-03 American Viscose Corp Drying wound textile package
US2737041A (en) * 1952-09-03 1956-03-06 Schweizerische Viscose Apparatus for the fluid treatment of textile thread packages
US2913802A (en) * 1953-07-16 1959-11-24 Johns Manville Thermal modification of acrylonitrile yarns
US3181251A (en) * 1961-12-08 1965-05-04 Anaconda Wire & Cable Co Strand treating reel
US3459012A (en) * 1964-07-06 1969-08-05 Dye House Products Inc Wool top dye system

Also Published As

Publication number Publication date
NL44210C (en(2012))
GB452924A (en) 1936-09-01
BE414003A (en(2012))
FR802447A (fr) 1936-09-04
DE685434C (de) 1939-12-18

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