Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
  • D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
  • D06B5/12—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length
  • D06B5/16—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length through yarns, threads or filaments
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H55/00—Wound packages of filamentary material
• • 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
  • D02J11/00—Combinations, not covered by any one of the preceding groups, of processes provided for in such groups; Plant for carrying-out such combinations of processes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
  • B65H2515/12—Density
• • 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

Definitions

• the present application relates to a presentation of textile yarn in the form of a winding, mainly for dyeing, and to its manufacturing process.
• the filiform textile materials (ribbons, rovings, continuous or spun yarns of fibers), which will be designated by “yarn” in the following description, are generally offered in the form of windings such as cops, tubes, balls, cakes or sleeves, skeins, coils crossed on tube (rolls, sun coils, cheeses), cheek coils, coils with conical or straight sides, etc.
• winding depends on the subsequent treatment to which it is subjected (spraying, dyeing, etc.).
• Relatively soft windings are also known which are intended for dyeing. These small windings are either threaded on perforated tubes (or clarinets), or arranged in bulk, in layers in the dye autoclave; the coloring solution passing through the material by circulation of the bath, the material being, after dyeing, again wound on a support under a higher tension to allow easier later manipulation.
• a winding must, moreover, be easily unwound so as not to cause disturbance in the processing operation in which it is used (warping, weaving, knitting, winding, quilling, tufting, etc.).
• the windings of textured yarns in particular those intended for dyeing, must have a density making it possible to reconcile both good circulation of the dye bath and good reeling of the yarn after treatment.
• the textured thread coming from a primary bobbin is put into the form of soft windings of small dimensions, which are generally wrapped in sleeves to avoid the landslides of threads, threaded perforated tubes, or clarinets, contained in an autoclave, or else arranged in loose layers in said autoclave.
• the yarn is taken up again to be wound up in the form of hard coils for further processing treatments.
• the present application proposes improvements to the above-mentioned windings and to their treatment.
• the present application relates to a winding of large textile yarn, preferably for dyeing, characterized in that the yarn is an interwoven textured synthetic continuous yarn having between 40 and 200 knots / meter, preferably between 80 and 150 knots / meter, the winding being of cross type with straight sides, the crossover being between 20 ° and 45 °, preferably between 30 ° and 38 °, with density between 0.10 and 0.30 , of diameter corresponding to that of the dyeing machine, preferably greater than 50 centimeters, and weighing more than 5 kilos.
• the present application also relates to a process for manufacturing the above winding, characterized in that at least one continuous synthetic thread coming from a supply means disposed above a texturing machine passes successively and from top to bottom, in a first oven maintained at a temperature between 150 ° C and 230 ° C, in a false-twist means, in an interlacing nozzle supplied with air at a pressure between 0.5 and 4 bar in a second oven, said retraction maintained at a temperature between 150 ° C and 240 ° C, and then wound-up cross winding tangential form of rolls of large dimensions.
• At least one winding is treated directly in an autoclave comprising a single perforated central material holder in which it is threaded, the diameter of the winding corresponding to the inside diameter of the autoclave, at a temperature below 140 ° C., under a bath circulation pressure of less than 4 bars, the circulation of liquid fluid preferably taking place from the inside to the outside of the material; the winding then being, after treatment, used directly for further processing.
• the present application thus makes it possible, in a single operation, on a winding coming from manufacturing, to practice a treatment by fluid without handling of wire, and to obtain a treated winding, as dyed for example, directly usable for the subsequent transformations.
• a presentation of the wire on the winding remaining in the state namely in the form of parallel layers of crossed wires, without collapsing the sides of the winding and mixing of the layers of wires; the wire, during its subsequent transformation, either to be wound in the form of a firm winding, or to be used directly on weaving or knitting looms, unwinding easily from the large winding without problem.
• the treatment method has all the advantages of free treatment without having the disadvantages; in particular there is an absence of preferential dye bath passages due to a very homogeneous mass, with windings threaded on the material holder and whose diameter corresponds to that of the processing machine and of a regular density of the wire winding, preferably between 0.10 and 0.20. This allows a great improvement in the productivity of the wire treatment process.
• the fact of winding threaded on the material holder and whose diameter corresponds to that of the processing machine allows to increase up to 50% the loading density of the autoclave compared to conventional treatments ; the bath ratio is generally reduced from 1 to 10 to approximately 1 to 6, the bath being shorter, its exhaustion is facilitated, which results in a reduction of the treatment cycle of the order of 20 to 25% of the time usual. If one wishes to transform the large windings into hard coils, there are no drawbacks, due to the non-deformation of the large windings, the unwinding of the yarn is therefore reduced, which results in better textile cleanliness, quality of the winding and a possibility of support of 2.5 to 5 kilos without knots of yarn.
• the device used for the dyeing treatment is generally an autoclave, it comprises, in addition to the pumps usually used for the circulation of liquid bath, a single perforated material carrier receiving either a single winding, or a stack of windings with or without dividers , envelopes, sleeves; the passage of the treatment bath takes place in both directions, preferably the passage from the inside to the outside of the material is used.
• the treatment practiced is preferably that of dyeing the wire, it can also be a heat treatment of steam, water, or a liquid treatment containing adjuvants allowing specific properties to the wire.
• the spinning of the wire, after treatment, is carried out by air blowing, by suction or by centrifugation.
• the texturing process makes it possible to obtain a textured yarn having an elasticity comparable to that which is obtained by the usual texturing-skewer or friction and dyeing processes, and this under better economic conditions.
• the process implemented calls for a sequence of operations known elsewhere such as: simultaneous or sequential stretching-texturing, passage through the ovens, interlacing of the wire in a nozzle preferably located between two deliverers and before the second shrink oven , and tangential winding allowing the increase in the diameter of the winding up to values exceeding 50 centimeters and preferably exceeding 80 centimeters.
• the yarns used for texturing can be continuous artificial and / or synthetic yarns used alone or in the form of assemblies, they can also be associated with yarns of fibers.
• the process is applied on simple or overstretched synthetic yarn, on pre-oriented synthetic yarn or on weakly oriented yarn, preferably with simultaneous stretch-texturing in one case and sequential in the other.
• synthetic yarns yarns based on polyamide such as polyhexamethylene adipamide are preferably used.
• the large winding or sleeve with straight flank obtained has a diameter greater than 50 centimeters, preferably 80 centimeters, its diameter is generally a function of the dyeing machine in which at least one of these windings is stacked.
• the winding can be carried out on a central tube possibly perforated, thus usable directly in dyeing.
• a false-twist machine is preferably used, making the wire feed from the top of the machine, the wire passing successively through the first oven, the false-twist means, an interlacing nozzle, a second shrink oven before being turned tangentially to give rise to large coils of dye.
• the temperature of the ovens depends on the material treated, in general the temperatures of the first oven are between 150 ° C and 230 ° C and those of the second oven between 150 ° C and 240 ° C.
• Tangential winding is a conventional winding with drive by preferably controlled rollers.
• the interlacing nozzle can be single-jet or with concurrent jets, it is supplied with air at a pressure of between 0.5 and 4 bars, the frequency of the interlacing nodes is preferably between 80 and 150 knots / metre.
• the false-twist means is either skewer or friction.
• the large windings obtained have a sufficient density to be dyed and unrolled subsequently without difficulty, increasing the productivity of the process by avoiding reworking of the thread of the previous processes.
• the unwinding of the reel is carried out by known means, preferably by positive unwinding, either by internal control or by control of the spool by its periphery, the unwinding can also be carried out on the run by adjusting the call tension of the wire according to the hardness desired for the reel to be produced, the reel being mounted on a means with an uncontrolled free axis preferably provided with ball bearings to avoid resistance due to the weight of the winding.
• the winding obtained on the right side has a width of 20 centimeters, an outer diameter of 110 centimeters, an inner diameter of 40 centimeters, a density of 0.15 and a weight of 21 kilos.
• This winding is easy to handle, without collapse.
• the straight flank winding obtained has a width of 17 centimeters, an external diameter of 108 centimeters and an internal diameter of 40 centimeters, as well as a density of 0.14 and a weight of 20 kilos.
• This winding is easy to handle without collapsing the turns.
• composition of the Marine Dimacide SRL dye bath HERE: 2.4% Univadine FP adjuvants (CIBA GEIGY): 2 X PH 3.5 to 4 per acetic acid bath ratio: 1 to 6 pump supply pressure: 2 bars spin conditions: centrifugal spin.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Materials Engineering (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Coloring (AREA)
• Treatment Of Fiber Materials (AREA)
• Storage Of Web-Like Or Filamentary Materials (AREA)
• Looms (AREA)
• Artificial Filaments (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (2)

Family

ID=9321286

Family Applications (1)

Country Status (11)

Cited By (1)

Citations (5)

Family Cites Families (1)

• 1985
  • 1985-07-11 FR FR8510785A patent/FR2584692B1/fr not_active Expired
• 1986
  • 1986-06-25 GR GR861643A patent/GR861643B/el unknown
  • 1986-07-02 MA MA20954A patent/MA20726A1/fr unknown
  • 1986-07-07 DE DE8686420180T patent/DE3664311D1/de not_active Expired
  • 1986-07-07 AT AT86420180T patent/ATE44519T1/de not_active IP Right Cessation
  • 1986-07-07 EP EP86420180A patent/EP0210113B1/de not_active Expired
  • 1986-07-07 IL IL79347A patent/IL79347A/xx unknown
  • 1986-07-08 PT PT82946A patent/PT82946B/pt not_active IP Right Cessation
  • 1986-07-09 TR TR30957A patent/TR22491A/xx unknown
  • 1986-07-11 ES ES8600248A patent/ES2000662A6/es not_active Expired
  • 1986-07-11 TN TNTNSN86105A patent/TNSN86105A1/fr unknown

Patent Citations (5)

Non-Patent Citations (2)

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