US2396908A - Continuous dyeing of textile materials - Google Patents

Continuous dyeing of textile materials Download PDF

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Publication number
US2396908A
US2396908A US507211A US50721143A US2396908A US 2396908 A US2396908 A US 2396908A US 507211 A US507211 A US 507211A US 50721143 A US50721143 A US 50721143A US 2396908 A US2396908 A US 2396908A
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US
United States
Prior art keywords
dyeing
textile
vat
pigment
continuous
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
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US507211A
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English (en)
Inventor
Glenn F Womble
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.)
Riverside & Dan River Cotton M
Riverside & Dan River Cotton Mills Inc
Original Assignee
Riverside & Dan River Cotton M
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
Priority to BE465800D priority Critical patent/BE465800A/xx
Application filed by Riverside & Dan River Cotton M filed Critical Riverside & Dan River Cotton M
Priority to US507211A priority patent/US2396908A/en
Application granted granted Critical
Publication of US2396908A publication Critical patent/US2396908A/en
Priority to FR927633D priority patent/FR927633A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • 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
    • D06B2700/00—Treating of textile materials, e.g. bleaching, dyeing, mercerising, impregnating, washing; Fulling of fabrics
    • D06B2700/09—Apparatus for passing open width fabrics through bleaching, washing or dyeing liquid

Definitions

  • This invention relates to the process of continuous dyeing of textile materials with vat. dye- 2 stuffs.
  • the object of the invention is to provide a rapid economical and continuous method of vat dyeing, obtaining results comparable in depth of, shade, fastness properties and appearance, to the products of the old and well known pigment-pad method, a two step process commonly used in the practice of dyeing vat colors of medium and heavy shades.
  • Dyeing with vat dyestuils is accomplished by reducing them chemically by a suitable reducing agent such as sodium hydrosulphite, to the leuco condition and dissolving them by means of a suitable alkali such as sodium hydroxide (commonly'known as caustic soda). In this-condition they are taken up by the affinity of the various fibers constituting the material, rinsed with water and subsequently oxidized by the oxygen of the air, or chemical oxidizing agents such as sodium perborate, sodium bichromate, and acetic acid, hydrogen peroxide, and numerous others;
  • a suitable reducing agent such as sodium hydrosulphite
  • a suitable alkali such as sodium hydroxide (commonly'known as caustic soda).
  • caustic soda commonly'known as sodium hydroxide
  • the reduced and dissolved color is added to-a bath containing the necessary amounts of reducing and dissolving chemicals contained in a rectangular trough, on which two rollers, which may be revolved around the longitudinal axis with corresponding driving and braking arrangements, are fixed.
  • the labric which is provided at both ends with end cloths, is wound in the open width in a stretched condition onto one of these rollers which is fixed above the jig.
  • For the pu pose of dyeing-the fabric is alternately wound ofi one roller (delivery roller) in the open width and in a stretched condition, passed through 4 the dye-liquor by means of two or three guide rollers which are fixed in the lie and wound on to the other roller (receiving roller).
  • the dry undyed material is impregnated in the open width with a dispersion of vat pigment, i. e., undissolved color in water, from a stock tank and passed through a padder, i. e., squeezed through two rubber covered rollers or a metal roller and a rubber covered roller with the bottom roller being driven, thus delivering the material to a batching arrangement which rolls up the material on a wooden shell-or core in the form of a jig-roll" which in turn is loaded on the jig.
  • the jig bath or rectangular box before mentioned in describing straight-jig dyeing is charged with the necessary reducing and dissolving chemicals'and from this step on the process is identical with straight-Jig dyeing.
  • the dry undyed material is fed through a padder as described under pigmentpad" dyeing, but instead of being impregnated with a dispersion of pigment in water, the dyestuif is previously dissolved with the usual caustic soda (or other alkalis) and reducing agents,
  • vat dyestufis are unstable in solution and break down more or less rapidly on standing. If for any reason the continuous operation is interrupted for any considera-ble length of time the reduced and dissolved dyestufl in the feed tank must be thrown away and'a new lot made up. Finally, it is quite impossible to foresee the exact amount or dyestui! which must be reduced and dissolved for a given lot, of textile material. Any excess dye solution must be thrown away. Due to the fact that the stability of a reduced vat solution is influenced by the temperature at which it is maintained and the length of time ltis held in solution before using. frequently there are large quantities or expensive dyestialls lost due to delays which are inevitable when a shade is being matched for the first time.
  • vat dyestuils which are applied in the form of a water dispersion of the pigment and dried or semi-dried to fix the pigment on and within the fabric.
  • the pigment is subse quently reduced, that is, dissolved in the common caustic alkali and reducing agents such as sodium hydrosulphite, and precipitated by oxidation on or in the fibers, all in one operation.
  • Fig. 1A is a line diagram of a portion r the U dyeing circuit.
  • Fig. 1B shows the end of this circuit. ,w
  • this invention overcomes the disadvantages listed in the foregoing methods. Also it enables the dyer to salvage any quantity oi! stock solution left over.
  • vat colors are applied in pigment form dispersed or suspended in water.
  • This isfdone by a two process the roll padder which has an immersion box T and which is indicated generally at l2.
  • a padder consists of two rubber covered rollers or a metal roller and a rubber covered roller with the bottom roller being driven.
  • the material is fed to the padder I! from a scray Ii.
  • the immersion box '1 is supplied with the pigment in proper suspension in water. As the material passes through the rolls of padder 12,
  • This dissolving and dyeing is preferably accomplished through a three roller padder ll arranged in tandem with booster boxes I 5 and it which chemicals.
  • the immersion box B of padder l4 holds the reducing and dissolving chemicals for the padder l4.
  • the three roller 1 padder arrangement is preterablyin conjunction with the booster boxes since thev extra squeezes to which the cloth is subjected cause better penetration of the goods. It is found that only a short 1 time, usually from one to twominutes, is needed to dissolve and develop the shade. This is probably due to the fact that previous drying has driven or! the water used in applying the pigment, thus leaving the material in a condition in which it will quickly absorb the solution of caustic alkalis and reducing a ents. Furthermore, the vat pigment is left after drying in a condition in which the maximum amount of surface area is exposed and it is already heated to or above the reducing temperature, thus facilitating rapid solution and dyeing action.
  • the dyed material After passing rapidly through the reducing bath, that is, consuming only ;the time .usually necessary for pastel shades dyed by regular methods, the dyed material is rinsed, oxidized, soaped,
  • Example 1 in one operation with vat dyestuffs, which com- Prise applying to the textile a fluid, unthickened, water dispersion of pigment, squeezing and drying by heating to-remove a substantial portion Pigment padded on two roll pad H with a feed liquor of 1.49 oz. per gal. Indanthrene Brown BRA' paste, .926 oz. per gal. Calcoloid Yellow GCD paste and .29 oz. per gal.
  • Calco1oid Grey BD paste passed through hot flue l3 (thereby dried); through three roll pad [6 containing requisite quantities of reducing and dissolving chemicals; through first booster box i containing reducing and dissolving chemicals; skip second booster box it; rinsed; soaped and rinsed through remaining wash boxes H to 22 and finally folded into box 23.
  • Example 2 Mercerized boiled out cotton wind resistant poplin as specified by U. S. Government is dyed vat olive drab at the rate of 90 yards per minute on same continuous vat dyeing machine as used in Example 1 as follows: Pigment padded on two roll pad l2 with a feed liquor containing 2.16 ozs. per gallon Ponsol Brown AGG double paste, 2.26 ozs. per gallon Ponsol Olive GGL paste and 1.02 ozs. per gallon Ponsol Golden Orange 4G paste; passed through hot flue'ls and semi-dried; through three roll pad M containing requisite quantities of reducing and dissolving chemicals; through first and second booster boxes I 5 and it; through rinse, oxidizing, soap. hot wash and rinse boxes I 6 to 22 thereby completing the dyeing operation.”
  • Example 3 Mercerized boiled out cotton herringbone twill as specified by U. S. Government isdyed continuously. the vat O. D. No. 7 shade at the rate of 80 yards per minute on the same machine as Example 2 by padding the following vat pigments on two roll pad i2;
  • Those steps in the method of continuous vat dyeing solid colors on textile materials which comprise applying'to the textile a pigment from an unthickened water suspension or dispersion, removing the water by squeezing and heating to leave the pigment in the textile, and immediately subjecting the dried heated textile to an alkaline reducing agent, and squeezing said fabric to obtain penetration of said reducing agent and contact with the pigments in the fabric.
  • steps in the method of dyeing solid colors on one continuous piece of textile material in one operation with vat dyestuffs which comprise, dispersing throughout the textile vat pigmentsfrom an unthickened aqueous suspension
  • heat of the fabric assisting in maintaining the temperature of said bath, the developing of the shade'of the textile before rinsing requiring approximately two minutes or less.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)
US507211A 1943-10-21 1943-10-21 Continuous dyeing of textile materials Expired - Lifetime US2396908A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE465800D BE465800A (en(2012)) 1943-10-21
US507211A US2396908A (en) 1943-10-21 1943-10-21 Continuous dyeing of textile materials
FR927633D FR927633A (fr) 1943-10-21 1946-06-04 Teinture en continu de textiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US507211A US2396908A (en) 1943-10-21 1943-10-21 Continuous dyeing of textile materials

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US2396908A true US2396908A (en) 1946-03-19

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US507211A Expired - Lifetime US2396908A (en) 1943-10-21 1943-10-21 Continuous dyeing of textile materials

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US (1) US2396908A (en(2012))
BE (1) BE465800A (en(2012))
FR (1) FR927633A (en(2012))

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532471A (en) * 1947-04-10 1950-12-05 American Viscose Corp Spray application of dyestuff and other materials
US2628884A (en) * 1949-11-16 1953-02-17 Raymond W Jacoby Dye aging process
US2641119A (en) * 1953-06-09 Ageing or reducing apparatus
US2693995A (en) * 1954-11-09 Process and apparatus for dyeing or performing related
US2764010A (en) * 1949-05-10 1956-09-25 Gen Aniline & Film Corp Apparatus for treating textiles
US3349580A (en) * 1964-07-01 1967-10-31 Valls Conrado Device for the continuous treatment of textile materials
US4229173A (en) * 1972-06-29 1980-10-21 Vepa Ag Process and apparatus for the continuous dyeing of lengths of material consisting at least partly of cellulose fibers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641119A (en) * 1953-06-09 Ageing or reducing apparatus
US2693995A (en) * 1954-11-09 Process and apparatus for dyeing or performing related
US2532471A (en) * 1947-04-10 1950-12-05 American Viscose Corp Spray application of dyestuff and other materials
US2764010A (en) * 1949-05-10 1956-09-25 Gen Aniline & Film Corp Apparatus for treating textiles
US2628884A (en) * 1949-11-16 1953-02-17 Raymond W Jacoby Dye aging process
US3349580A (en) * 1964-07-01 1967-10-31 Valls Conrado Device for the continuous treatment of textile materials
US4229173A (en) * 1972-06-29 1980-10-21 Vepa Ag Process and apparatus for the continuous dyeing of lengths of material consisting at least partly of cellulose fibers

Also Published As

Publication number Publication date
BE465800A (en(2012))
FR927633A (fr) 1947-11-04

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