US3808618A - Method for continuous dyeing of yarns - Google Patents

Method for continuous dyeing of yarns Download PDF

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Publication number
US3808618A
US3808618A US00262846A US26284672A US3808618A US 3808618 A US3808618 A US 3808618A US 00262846 A US00262846 A US 00262846A US 26284672 A US26284672 A US 26284672A US 3808618 A US3808618 A US 3808618A
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United States
Prior art keywords
dye
yarn
discharged
applicator
applicators
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Expired - Lifetime
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US00262846A
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English (en)
Inventor
H Arimoto
T Seki
T Goto
K Amemiya
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Unitika Ltd
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Unitika Ltd
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Priority to US412520A priority Critical patent/US3906757A/en
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Publication of US3808618A publication Critical patent/US3808618A/en
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    • 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
    • D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
    • 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
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/08—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating from outlets being in, or almost in, contact with the textile material
    • 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
    • D06B11/00—Treatment of selected parts of textile materials, e.g. partial dyeing
    • D06B11/002—Treatment of selected parts of textile materials, e.g. partial dyeing of moving yarns
    • D06B11/003—Treatment of selected parts of textile materials, e.g. partial dyeing of moving yarns by continuous contact with a member able to bring simultaneously a plurality of treating materials
    • 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
    • D06B11/00—Treatment of selected parts of textile materials, e.g. partial dyeing
    • D06B11/002—Treatment of selected parts of textile materials, e.g. partial dyeing of moving yarns
    • D06B11/0036—Treatment of selected parts of textile materials, e.g. partial dyeing of moving yarns specially disposed for a local treatment
    • 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
    • D06B9/00—Solvent-treatment of textile materials
    • D06B9/02—Solvent-treatment of textile materials solvent-dyeing
    • 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
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
    • D06B3/045—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments in a tube or a groove

Definitions

  • a method of continuously dyeing a yarn comprises, heating a running yarn to a temperature above 2% g 41,2 32 the boiling point of a solvent in a dye and contacting i 5 2 2 said heated yarn with one or more dye applicators 1 0 care 68/200 6 having a dye discharge aperture while discharging a dye through said aperture and onto said yarn is disclosed.
  • An apparatus for continuously dyeing a yarn is [56] eferences Cited also disclosed UNITED STATES PATENTS 1,65 l,l67 Alstyne et a1 68/200 10 Claims, 9 Drawing Figures SHEET 1 [IF 2 FIGI HGBB
  • SHEET 2 BF 2 wlllululllllfll 1 METHOD FOR CONTINUOUS DYEING OF YARNS BACKGROUND OF THE INVENTION 1.
  • This invention relates to a method for continuously dyeing various forms of yarns of synthetic fibers, natural fibers or a mixture of these fibers, such as filament yarns, spun yarns or crimped yarns, at high speed, and especially to a method and an apparatus suitable for dyeing these yarns in multicolors.
  • the former method has the disadvantage that the yarn tends to become flattenedwhen held by the nip rollers, and it is difficult and inefficient to revolve the nip rollers at high speed yet to squeeze the yarn uniformly. According to the latter method, the dye liquor is scattered when the roller for applying the dye is rotated at high speed, and therefore it is difficult to dye the yarn at high speed.
  • the methods generally known to dye intermittently colored yarns or multicolored yarns include, for examtermittent contact along its length with a revolving roller partly immersed in a dye bath to transfer the dye liquor intermittently to the yarn, followed by a heat-treatment" to effect dye exhaustion.
  • the fabric is then treated with steam or a dry heat to fix the dye then the fabric is deknitted.
  • the present invention provides a method for continuously dyeing a yarn.
  • the method comprises heating a running yarn to a temperature above the boiling point of a solvent in a dye and dyeing the yarn by contacting the yarn with one or more dyes discharged from one or more dye applicators having an aperture for discharging the 'dye.
  • FIG. 1 is a schematic diagram showing one embodiment of this invention.
  • FIG. 2 is a perspective view of a dye applicator 5 shown in FIG. 1.
  • FIG. 3 is a view illustrating the use of two dye applicators, FIG. 3A showing their arrangement on opposite sides of the yarn, and FIG. 38 showing their arrangement on the same side of the yarn.
  • FIGS. 4 and 5 are sectional views of the yarns obtained by the method of this invention.
  • FIG. 6 is a side elevation of the yarns obtained by the method of this invention.
  • FIG. 7 is a sectional view of one embodiment of a means for discharging the flow of dye intermittently.
  • FIG. 8 is a sectional view of the principal parts of one dye applicator device from which three different dyes are discharged.
  • a yarn 2 is unwound from a cone 1, passed over a guide roller 3, heated by a heater 4, and then contacted with a dye applicator device 5.
  • a dye is applied to the yarn 2 using this dye applicator 5.
  • the dye is stored in a tank 6, and supplied to the dye applicator 5 by a metering pump 7.
  • the dye is then discharged from a small aperture provided in the applicator 5.
  • the yarn 2 is dried in a dryer 8, passed over a guide roller 9, and is taken up on a winder 10.
  • the reference numeral 13 represents a U-shaped groove through which the yarn 2 runs in contact therewith.
  • a dye discharge aperture 11 is provided near the central portion of the bottom of the U-shaped groove.
  • the dye which is supplied through a pipe 12 is discharged from this aperture in the appropriate amount, and applied to the yarn 2 which is running through the groove 13 in contact with the bottom of the groove including the discharge aperture 11.
  • the diameter of the dye discharge aperture and the opening angle of the U-shaped groove differ somewhat according to the thickness of the yarn to be dyed. Generally, however, it is desirable that the diameter of the discharge opening ranges from about 0.1 to lmm, and the opening angle of the groove through which the yarn passes ranges from about 15 to 145.
  • FIG. 1 only one dye applicator device is shown. By providing two or more dye applicators, it is possible to dye a yarn with more than one color. The use of two applicators is illustrated in FIG. 3.
  • the running yarn 2 comes in contact with one of the dye applicators 5, and the dye is applied to one side of the yarn from the aperture 11.
  • This yarn comes in contact with the other applicator device disposed opposite to the applicator 5, and a dye the same color as or a dye a different color from that applied by the applicator 5 is applied to the opposite side of the yarn 2.
  • the yarn is dyed in two colors as shown sectionally in FIG. 4, and the two colors are separately continuous along the length of the resulting yarn.
  • FIG. 3B illustrates the arrangement in which two dye applicator devices 5, 5' are provided on the same side of the running yarn, in which the same or different dyes can be applied to the yarn from the respective discharge apertures in the applicator devices.
  • the yarn when three applicator devices are provided around the yarn, the yarn can be dyed in three colors as shown in FIG. 5.
  • torsion occurs in the yarn during the knitting or weaving process, andtherefore, a random colored fabric is obtained as a result of the weaving or knitting.
  • FIG. 5A illustrates a section of a multicolored yarn obtained by discharging small amounts of the dye.
  • FIG. 5B shows a section of a multicolored yarn in which two adjoining colors are mixed with each other as a result of discharging large quantities of the dye.
  • FIG. 5C shows a section of a multicolored yarn which contains undyed portions as a result of arranging the dye applicators around the yarn at unequal intervals.
  • Whan a yarn is dyed using one or more of the dye applicators shown in FIG. 2, it is possible to obtain variously dyed yarns by changing the amount of the dye discharged.
  • the yarn can be uniformly dyed similar to conventional dip dyeing, or it can be dyed randomly to obtain a yarn having intermittent dyed portions along its length, i.e., intermittently colored yarn or to obtain multicolored yarns.
  • the dye is continuously discharged from the aperture of the dye applicator, it is possible to obtain a yarn having a continuous dye portion along its length as shown in FIG. 6A. If, on the other hand, the dye is fed intermittently and discharged, a yarn colored intermittently along its length can be obtained as shown in FIG. 6B.
  • any desired means can be employed to obtain an intermittent flow of the dye.
  • One method involves the incorporation of air bubbles in the dye.
  • an air pump can be provided somewhere in the pipe for feeding the dye in order to introduce air bubbles thereinto.
  • the distances between the colored portions can be varied as desired.
  • a gas such as air or carbon dioxide gas is dissolved under pressure in the dye and the bubbles of these gasses may be generated in the dye in the vicinity of the discharge openings where the pressure approaches normal atmospheric pressure.
  • these gases dissolved in the dye may be converted into bubbles by heating in the vicinity of the discharge openings.
  • a chemical generating a gas upon heating such as sodium bicarbonate, can be incorporated in the dye, and by heating it near the discharge openings, bubbles are generated.
  • the interruption in the flow of the dye can also be effected using an apparatus of the structure shown in FIG. 7.
  • a piston 22 is moved reciprocatingly in the direction of A by an electromagnet 21.
  • the piston 22 is held in contact with a dye liquor discharge opening 26 using a spring 23, thereby to stop the discharge of the dye liquor.
  • the reference numeral 24 represents an inlet for the dye, and 25, an outlet for the dye.
  • An electric wire is shown at 27.
  • the flow of the dye which enters the apparatus through the inlet 24 and the outlet 25 is interrupted by actuating the electromagnet 21 intermittently thereby reciprocating the piston 22 and closing and opening 26 intermittently.
  • a yarn which is dyed continuously or intermittently in two or more colors along the length as shown in FIG. 8.
  • a yarn 31 runs in contact, with dye applicator device 32 which is shown in detail as reference numeral 5 in FIG. 2.
  • dyes a, b and c of different colors are continuously or discontinuously discharged at varying intervals, and applied to the yarn 31 repeatedly in any order of a, b and c, or in a random sequence.
  • the dyes which have been fed into dye intermitting devices 34, 34 and 34" through delivery pipes 35, 35' and 35" are intermitted here, and discharged from the discharge opening alternately or in a random sequence, and thus applied to the yarn 31.
  • the dyed portions may be rendered continuous; or discontinuous, that is, undyed portions may be formed.
  • the yarn to which the dye has been applied is steamed or subjected to a dry heattreatment in the form of a package such as a cone or cheese, or in the form of a skein thereby to fix the dye to the fibers.
  • a dry heattreatment in the form of a package such as a cone or cheese, or in the form of a skein thereby to fix the dye to the fibers.
  • the steaming method has the disadvantage that longer periods of steaming time are needed to achieve sufficient dyeing, and the efficiency is poor.
  • the dry-heat-treatment has the advantage that the treatment can be completed within shorter periods of time but still poses the problem of the decomposition and sublimation of the dye because of the hightemperature treatment.
  • the yarn is preheated to a temperature above the boiling point of a solvent in the dye prior to the application of the dye to the yarn, and then the dye, which can also be preheated if desired, is applied to the yarn, followed by a drying and a winding up of the yarn.
  • This preheating of the yarn contributes to an activation of the molecular movement of the fibers, and the dye is applied to the yarn in the condition in which the internal structure of the fiber is relaxed.
  • the heating temperature applied to the yarn prior to the application of the dye varies depending upon the type of the fiber but, usually, it is higher than the boiling point of the solvent employed in the dye and not higher than the point at which the physical and chemical properties of the yarn drastically change.
  • the temperature of the dyes applied to the yarn is controlled within the range of 30C below the boiling point of the solvent of the dye up to its boiling point. For example, when water is used as a solvent for the dye, temperature of 70 to 100C are suitable. At a temperature below 70C., long periods of time are needed for drying, and it is impossible to dye the yarn at high speed.
  • the yarn to which the dye has been applied is dried by passage through a dryer, and wound up to complete the dyeing operation.
  • the dyeing operation is completed at this point, and post-treatments such as washing or soaping are unnecessary.
  • a great advantage of this invention is that the dyeing is completed in this state. Where a darker color and a high fastness are desired, the wound up yarn may further be steam set.
  • the yarns that can be dyed by the method of this invention may be any yarns, such as spun yarns, continuous filament yarns or crimped yarns, composed of natural fibers such as cotton, wool or silk, synthetic fibers such as polyester, acrylics, polyamides and the artificial cellulose fibers such as viscose rayon, cellulose acetate or mixtures of these fibers.
  • the dye to be used in this invention can be chosen according to its suitability for the fibers to be dyed. If desired, a swelling agent for the fibers, a carrier or a solvent may be added to the dye in order to achieve the objects of this invention more effectively.
  • the dyeing according to the method of this invention can be carried out at a speed as high as 500 to 1,500 meters per minute without changing the tension of a running yarn, irrespective of whether the yarn has a non-uniform thickness or whether it contains knots.
  • EXAMPLE 1 AMOUNT (parts by weight) DYE FORMULATION V Cl Acid Red 219 Ethyl Alcohol 400 Benzyl Alcohol 40 Water 510 EXAMPLE 2 A false-twisted nylon 6 yarn (l260den/80fil/3ply) was passed over through an apparatus of the type shown in FIG.
  • EXAMPLE 4 A polyester filament yarn (75den/24fil) was passed over a heater held at 210C at a speed of 700 m/min., and then the following dyes A, B and C were heated to C discharged each at a rate of 0.8 cc/min. from three dye applicator devices to apply them to the surface of the yarn. The yarn was then passed through a non-contact heater held at 150C, and wound up. The would-up cheese was formed into a skein, and steamed for five minutes at 140C. The surface of the yarn obtained was dyed three separate colors of very high fastness. Such a yarn has not been available heretofore.
  • the woundup cheese was formed into a skein, and steamed for minutes at 105C.
  • a weft knitted fabric being of a sprinkled pattern of extreme clearness was produced using the resulting multicolored yarn.
  • a method of continuously dyeing a yarn which comprises heating a running yarn to a temperature above the boiling point of a solvent in a dye and contacting said heated yarn with one or more dye applicators having a dye discharge aperture while discharging a dye through said aperture and onto said yarn.
  • said dye applicator comprises a dye applicator having therein a U- shaped groove through which said running yarn passes in contact therewith and wherein said dye discharge aperture is positioned at the bottom of said U-shaped groove.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coloring (AREA)
US00262846A 1971-06-14 1972-06-14 Method for continuous dyeing of yarns Expired - Lifetime US3808618A (en)

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US412520A US3906757A (en) 1971-06-14 1973-11-02 Apparatus for continuous dyeing of yarns

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Application Number Priority Date Filing Date Title
JP46042316A JPS515113B1 (it) 1971-06-14 1971-06-14

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US (1) US3808618A (it)
JP (1) JPS515113B1 (it)
CH (3) CH579661B5 (it)
DE (1) DE2229055A1 (it)
FR (1) FR2140692B1 (it)
GB (1) GB1374668A (it)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955254A (en) * 1973-04-18 1976-05-11 Rhone-Poulenc-Textile Apparatus for treating yarn with fluid material
US4042989A (en) * 1975-04-08 1977-08-23 Robreli Holding S.A. Method for packaging and dyeing yarns and yarn packaging obtained thereby
EP0805229A2 (de) * 1996-05-03 1997-11-05 Ciba SC Holding AG Verfahren zum kontinuierlichen Färben von Polyester-Garnen
WO1998022224A1 (en) * 1996-11-20 1998-05-28 Threlkeld James O Method for treating travelling textile material
US5868010A (en) * 1996-02-12 1999-02-09 Fypro Thread Company, Inc. Method for dyeing a traveling textile strand
US5881411A (en) * 1996-12-23 1999-03-16 Fypro Thread Company, Inc. Twisted, dyed and bonded filaments
US5891201A (en) * 1995-10-13 1999-04-06 Ciba Specialty Chemicals Corporation Process for the continuous dyeing of yarns with reactive dyes and apparatus for carrying out this process
WO2001036732A2 (en) * 1999-11-14 2001-05-25 Ttm Services Ltd. Method and apparatus for dyeing of yarns of carpets
EP2974987A1 (en) * 2014-07-14 2016-01-20 Crayola LLC Apparatus for colouring threads
US9506176B2 (en) 2014-07-14 2016-11-29 Crayola, Llc Thread coloring apparatus
US9816212B2 (en) 2014-07-14 2017-11-14 Fuse London Limited Threading apparatus
WO2017203524A1 (en) 2016-05-24 2017-11-30 Twine Solutions Ltd. System, machine and method for treating threads or parts thereof
WO2019106679A1 (en) * 2017-12-03 2019-06-06 Twine Solutions Ltd. Process for treating of threads
WO2020109944A1 (en) * 2018-11-27 2020-06-04 Invista North America S.A R.L. Applying an agent to a flexible filament
CN113151998A (zh) * 2020-06-17 2021-07-23 鲁泰纺织股份有限公司 两种颜色不同步上染的在线染色设备及工艺

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087242A (en) * 1976-03-02 1978-05-02 Monsanto North Carolina Incorporated Production of variegated polyester yarn and fabric
DE2635341A1 (de) * 1976-08-03 1978-02-09 Berliner Maschinenbau Ag Vorrichtung zum benetzen und texturieren von einem oder mehreren, aus einer mehrzahl von synthetischen filamenten gebildeten garnen
US4268550A (en) * 1979-07-02 1981-05-19 Monsanto Company Metered finish
DE3317400C2 (de) * 1983-05-13 1985-08-29 A. Monforts GmbH & Co, 4050 Mönchengladbach Verfahren zum Ausrüsten eines Kunstfasern enthaltenden Textilguts mit einem verdampfbaren Ausrüstungsmittel und Vorrichtung zur Durchführung des Verfahrens
JPS61502475A (ja) * 1984-06-21 1986-10-30 コモンウエルス　サイエンテイフイツク　アンド　インダストリアル　リサ−チ　オ−ガナイゼイシヨン 糸条への液体の付与方法並びに装置
GB8500531D0 (en) * 1985-01-09 1985-02-13 Coats Ltd J & P Dyeing yarn
RU1771493C (ru) * 1988-06-02 1992-10-23 Е.И.Дюпон Де Немур Энд Компани Аппликатор дл отделки пр жи
DE8815242U1 (de) * 1988-12-07 1990-05-10 Nordson Corp., Westlake, Ohio Vorrichtung zum Auftragen eines Klebstoffes auf elastische Fäden

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1651167A (en) * 1926-10-01 1927-11-29 Howard Malcolm Van Alstyne Yarn-dyeing machine
US1934796A (en) * 1929-05-23 1933-11-14 Aceta Gmbh Apparatus for moistening threads
US2106311A (en) * 1929-06-14 1938-01-25 Celanese Corp Process of applying liquid to textile materials
US2428284A (en) * 1943-08-18 1947-09-30 Western Electric Co Strand marking apparatus
US3600730A (en) * 1968-10-22 1971-08-24 Singer Cobble Ltd Printing of moving yarns

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1651167A (en) * 1926-10-01 1927-11-29 Howard Malcolm Van Alstyne Yarn-dyeing machine
US1934796A (en) * 1929-05-23 1933-11-14 Aceta Gmbh Apparatus for moistening threads
US2106311A (en) * 1929-06-14 1938-01-25 Celanese Corp Process of applying liquid to textile materials
US2428284A (en) * 1943-08-18 1947-09-30 Western Electric Co Strand marking apparatus
US3600730A (en) * 1968-10-22 1971-08-24 Singer Cobble Ltd Printing of moving yarns

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955254A (en) * 1973-04-18 1976-05-11 Rhone-Poulenc-Textile Apparatus for treating yarn with fluid material
US4042989A (en) * 1975-04-08 1977-08-23 Robreli Holding S.A. Method for packaging and dyeing yarns and yarn packaging obtained thereby
US5891201A (en) * 1995-10-13 1999-04-06 Ciba Specialty Chemicals Corporation Process for the continuous dyeing of yarns with reactive dyes and apparatus for carrying out this process
US5983678A (en) * 1995-10-13 1999-11-16 Ciba Specialty Chemicals Corporation Process for the continuous dyeing of yarns with reactive dyes and apparatus for carrying out this process
US5868010A (en) * 1996-02-12 1999-02-09 Fypro Thread Company, Inc. Method for dyeing a traveling textile strand
EP0805229A2 (de) * 1996-05-03 1997-11-05 Ciba SC Holding AG Verfahren zum kontinuierlichen Färben von Polyester-Garnen
EP0805229A3 (de) * 1996-05-03 1999-05-26 Ciba SC Holding AG Verfahren zum kontinuierlichen Färben von Polyester-Garnen
WO1998022224A1 (en) * 1996-11-20 1998-05-28 Threlkeld James O Method for treating travelling textile material
US5881411A (en) * 1996-12-23 1999-03-16 Fypro Thread Company, Inc. Twisted, dyed and bonded filaments
WO2001036732A3 (en) * 1999-11-14 2001-11-01 Ttm Services Ltd Method and apparatus for dyeing of yarns of carpets
WO2001036732A2 (en) * 1999-11-14 2001-05-25 Ttm Services Ltd. Method and apparatus for dyeing of yarns of carpets
EP2974987A1 (en) * 2014-07-14 2016-01-20 Crayola LLC Apparatus for colouring threads
US9506176B2 (en) 2014-07-14 2016-11-29 Crayola, Llc Thread coloring apparatus
US9816212B2 (en) 2014-07-14 2017-11-14 Fuse London Limited Threading apparatus
WO2017203524A1 (en) 2016-05-24 2017-11-30 Twine Solutions Ltd. System, machine and method for treating threads or parts thereof
US10982384B2 (en) 2016-05-24 2021-04-20 Twine Solutions Ltd. System, machine and method for treating threads or parts thereof
WO2019106679A1 (en) * 2017-12-03 2019-06-06 Twine Solutions Ltd. Process for treating of threads
CN111670280A (zh) * 2017-12-03 2020-09-15 特腕解决方案有限公司 用于处理线的方法
US20210047765A1 (en) * 2017-12-03 2021-02-18 Twine Solutions Ltd. Process for treating of threads
WO2020109944A1 (en) * 2018-11-27 2020-06-04 Invista North America S.A R.L. Applying an agent to a flexible filament
CN113151998A (zh) * 2020-06-17 2021-07-23 鲁泰纺织股份有限公司 两种颜色不同步上染的在线染色设备及工艺

Also Published As

Publication number Publication date
CH881172A4 (it) 1975-12-31
CH579661B5 (it) 1976-09-15
FR2140692A1 (it) 1973-01-19
FR2140692B1 (it) 1977-12-23
CH566823A5 (it) 1975-09-30
GB1374668A (en) 1974-11-20
DE2229055A1 (de) 1972-12-28
JPS515113B1 (it) 1976-02-17

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