US2741533A - Dry cleaning of cellulose acetate fabrics with a fading inhibitor in the solvent - Google Patents

Dry cleaning of cellulose acetate fabrics with a fading inhibitor in the solvent Download PDF

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Publication number
US2741533A
US2741533A US261384A US26138451A US2741533A US 2741533 A US2741533 A US 2741533A US 261384 A US261384 A US 261384A US 26138451 A US26138451 A US 26138451A US 2741533 A US2741533 A US 2741533A
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United States
Prior art keywords
solvent
dry
cellulose acetate
gas fading
dry cleaning
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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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US261384A
Inventor
George C Ward
Firmin J Porter
George W Seymour
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Celanese Corp
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Celanese Corp
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Publication date
Application filed by Celanese Corp filed Critical Celanese Corp
Priority to US261384A priority Critical patent/US2741533A/en
Priority to GB31394/52A priority patent/GB729170A/en
Application granted granted Critical
Publication of US2741533A publication Critical patent/US2741533A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
    • D06L1/02—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using organic solvents
    • D06L1/04—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using organic solvents combined with specific additives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
    • Y10S8/92—Synthetic fiber dyeing
    • Y10S8/921—Cellulose ester or ether

Definitions

  • This invention relates to the treatment of fabric materials and relates more particularly to the dry cleaning of dyed fabric materials made of or containing yarns or filaments having a basis of cellulose acetate or other organic derivative of cellulose materials whereby an improved resistance to gas fading is imparted thereto simultaneously with the cleaning operation.
  • An object of this invention is to provide a process for the treatment of dyed cellulose acetate or other organic derivative of cellulose textile materials during dry-cleaning operations so that said textile materials will be rendered resistant to gas fading.
  • Another object of this invention is the provision of modified dry-cleaning solvent compositions adapted to be utilized for the dry-cleaning of dyed textile materials made of or containing yarns or filaments having a basis of cellulose acetate or other organic derivative of cellulose and for the simultaneous protection of said dyed materials against gas fading.
  • the gas fading of dyed textile materials is a problem which is encountered primarily in connection with cellulose acetate or other organic derivative of cellulose textile materials dyed in certain blue shades with anthraquinone dyestuffs although it is also experienced with other dyed textile materials.
  • gas fading inhibiting agents as well as dyestuffs of structures especially resistant to changes which result in gas fading, have partially lessened the acuteness of the problem.
  • the problem of gas fading can by no means be considered adequately and satisfactorily solved.
  • inhibiting agents difficulties such as discoloration and changes in shade are encountered and the lack of substantivity makes them useful to only a limited extent when the inhibiting agents are applied in the usual Way.
  • many inhibiting agents are satisfactory only when applied by specific dispersion methods which must be employed as a separate and distinct step if suitable protection of the dyed materials is to be attained. Separate treatments which increase the cost are economically disadvantageous.
  • gas fading inhibitors to textile materials may be carried out in a convenient and effective manner and optimum protection assured if the gas fading inhibitor is applied during dry cleaning operations in solution in the dry cleaning solvent employed. A dual effect is thus achieved; the garment or other textile article is not only cleaned but is protected against gas fading at the same time.
  • the gas fading inhibitor may be dissolved in a dry cleaning solvent such as perchlorethylene, carbon tetrachloride or Stoddard solvent in an amount sufdcient to yield a 0.2 to by weight solution and, after the dry cleaning operation has been completed and the major part of the solvent removed, the evaporation of the remainder results in the inhibitor being left behind in a uniformly distributed manner on the dry cleaned textile articles. A uniform degree of protection is thus assured.
  • the amount of inhibitor applied in this manner may readily be varied by varying the concentration of inhibitor in the dry cleaning solvent.
  • Example I A cellulose acetate textile material is dyed in a blue shade with the dyestutf l-methylamino-2-carbamido-4-isopropylamino-anthraquinone.
  • the dyed fabric is then subjected to a dry cleaning operation with a 2% by weight solution of Z-amino-l-butanol in carbon tetrachloride, the operation being conducted so that about 1.5% of inhibitor on the weight of the fabric remains behind and is uniformly deposited thereon after the cleaning operation.
  • On exposure of the treated fabric to one unit of exposure in accordance with the standard A. A. T. C. C. test for gas fading no change in shade is observed. Untreated dyed fabric undergoes a marked change in shade after one unit of exposure.
  • Example 11 A cellulose acetate textile material is dyed in a blue shade with the dyestutf l-methylamino-2-carbamido-4-isopropylan'lino-anthraquinone.
  • the dyed fabric is then subjected to a dry cleaning operation with a 2% by weight solution of methyl-diethanolamine in perchlorethylene, the operation being conducted so that about 1.5% of inhibitor on the weight of the fabric remains behind and is uniformly deposited thereon after the cieaning operation.
  • On exposure of the treated fabric to one unit of exposure in accordance with the standard A. A. T. C. C. test for gas fading no change in shade is observed. Untreated dyed fabric undergoes a marked change in shade after one unit of exposure.
  • a similar result is obtained employing diethylethanolarnine in perchlorethylene.
  • fiaidiQllltion comprises a 2% solution of diethyl-ethanolamine in perchlorethylene.

Description

United rates DRY CLEANING OF CELLULOSE ACETATE FABRICS WITH A FADING ITOR IN THE SOLVENT Application December 12, 1951, Serial No. 261,384
No Drawing.
8 Claims.
This invention relates to the treatment of fabric materials and relates more particularly to the dry cleaning of dyed fabric materials made of or containing yarns or filaments having a basis of cellulose acetate or other organic derivative of cellulose materials whereby an improved resistance to gas fading is imparted thereto simultaneously with the cleaning operation.
An object of this invention is to provide a process for the treatment of dyed cellulose acetate or other organic derivative of cellulose textile materials during dry-cleaning operations so that said textile materials will be rendered resistant to gas fading.
Another object of this invention is the provision of modified dry-cleaning solvent compositions adapted to be utilized for the dry-cleaning of dyed textile materials made of or containing yarns or filaments having a basis of cellulose acetate or other organic derivative of cellulose and for the simultaneous protection of said dyed materials against gas fading.
Other objects of this invention will appear from the following detailed description.
The gas fading of dyed textile materials is a problem which is encountered primarily in connection with cellulose acetate or other organic derivative of cellulose textile materials dyed in certain blue shades with anthraquinone dyestuffs although it is also experienced with other dyed textile materials. The development and application of gas fading inhibiting agents, as well as dyestuffs of structures especially resistant to changes which result in gas fading, have partially lessened the acuteness of the problem. However, the problem of gas fading can by no means be considered adequately and satisfactorily solved. With respect to the use of inhibiting agents, difficulties such as discoloration and changes in shade are encountered and the lack of substantivity makes them useful to only a limited extent when the inhibiting agents are applied in the usual Way. Furthermore, many inhibiting agents are satisfactory only when applied by specific dispersion methods which must be employed as a separate and distinct step if suitable protection of the dyed materials is to be attained. Separate treatments which increase the cost are economically disadvantageous.
We have now found that the application of gas fading inhibitors to textile materials may be carried out in a convenient and effective manner and optimum protection assured if the gas fading inhibitor is applied during dry cleaning operations in solution in the dry cleaning solvent employed. A dual effect is thus achieved; the garment or other textile article is not only cleaned but is protected against gas fading at the same time.
To carry out our novel process, the gas fading inhibitor may be dissolved in a dry cleaning solvent such as perchlorethylene, carbon tetrachloride or Stoddard solvent in an amount sufdcient to yield a 0.2 to by weight solution and, after the dry cleaning operation has been completed and the major part of the solvent removed, the evaporation of the remainder results in the inhibitor being left behind in a uniformly distributed manner on the dry cleaned textile articles. A uniform degree of protection is thus assured. The amount of inhibitor applied in this manner may readily be varied by varying the concentration of inhibitor in the dry cleaning solvent.
In carrying out this improved process, optimum results are obtained when applying Z-amino-l-butanol as the gas fading inhibiting agent from solution in the dry cleaning solvent. Desirable results are also obtained when methyldiethanolamine and diethyl-ethanolamine, are employed. Of course, the inhibiting agent should be non-volatile under ordinary atmospheric conditions so that the protective effect is not lost due to volatilization after treatment has been completed and the residual dry cleaning solvent removed.
The advantageous results obtained employing the above compounds as acid fading inhibiting agents and in the manner described is quite surprising since many compounds of analogous structure are of little or no value when similarly applied.
In order further to illustrate the novel process of our invention, the following examples are given:
Example I A cellulose acetate textile material is dyed in a blue shade with the dyestutf l-methylamino-2-carbamido-4-isopropylamino-anthraquinone. The dyed fabric is then subjected to a dry cleaning operation with a 2% by weight solution of Z-amino-l-butanol in carbon tetrachloride, the operation being conducted so that about 1.5% of inhibitor on the weight of the fabric remains behind and is uniformly deposited thereon after the cleaning operation. On exposure of the treated fabric to one unit of exposure in accordance with the standard A. A. T. C. C. test for gas fading, no change in shade is observed. Untreated dyed fabric undergoes a marked change in shade after one unit of exposure.
A similar result is obtained when employing said inhibitor in perchlorethylene solution.
Example 11 A cellulose acetate textile material is dyed in a blue shade with the dyestutf l-methylamino-2-carbamido-4-isopropylan'lino-anthraquinone. The dyed fabric is then subjected to a dry cleaning operation with a 2% by weight solution of methyl-diethanolamine in perchlorethylene, the operation being conducted so that about 1.5% of inhibitor on the weight of the fabric remains behind and is uniformly deposited thereon after the cieaning operation. On exposure of the treated fabric to one unit of exposure in accordance with the standard A. A. T. C. C. test for gas fading, no change in shade is observed. Untreated dyed fabric undergoes a marked change in shade after one unit of exposure. A similar result is obtained employing diethylethanolarnine in perchlorethylene.
It is to be understood that the foregoing detailed de scription is given merely by way of illustration and that many variations may be made therein without departing from the spirit of our invention.
Having described our invention, what we desire to secure by Letters Patent is:
1. In a process for the treatment of garments made of dyed cellulose acetate textile materials whereby said materials are simultaneously dry cleaned and protected against gas fading, the steps which comprise subjecting said garment to a dry-cleaning operation employing a solution of a gas fading inhibiting agent, selected from the group consisting of Z-arnino-l-butanol, methyldiethanolamine and diethyl-ethanolamine, in a dry-cleaning solvent for said operation, said solvent being selected from the group consisting of perchlorethylene, carbon tetrachloride and Stoddard solvent, removing essentially all of 3 the dry-cleaning solventsolntion and evaporating the remainder whereby said gas fading inhibiting agent is left substantially uniformly distributed over said garment. l2. Process as set forth in claim 1 in which the solvent is perchlorethylene.
8. Erocess as .set forth in claim 1 in which fiaidiQllltion comprises a 2% solution of diethyl-ethanolamine in perchlorethylene.
References Cited in the file of this patent UNITED STATES PATENTS 2,017,119 Ellis Oct. 15, 1935 2,409,325 Ward Oct. 15, 1946 FOREIGN PATENTS 243,841 Great Britain -Dec. 10, 1925 558,784 Great Britain Jan. 20, 1944

Claims (1)

1. IN A PROCESS FOR THE TREATMENT OF GRAMENTS MADE OF DYED CELLULOSE ACETATE TEXTILE MATERIALS WHEREBY SAID MATERIALS ARE SIMULTANEOUSLY DRY CLEANED AND PROTECTED AGAINST GAS FADING, THE STEPS WHICH COMPRISE SUBJECTING SAID GARMENT TO A DRY-CLEANING OPERATION EMPLOYING A SOLUTION OF A GAS FADING INHIBITING AGENT, SELECTED FROM THE GROUP CONSISTING OF 2-AMINO-1-BUTANOL, METHYLDIETHANOLAMINE AND DIETHYL-ETHANOLAMINE, IN A DRY-CLEANING SOLVENT FOR SAID OPERATION, SAID SOLVENT BEING SELECTED FROM THE GROUP CONSISTING OF PERCHLORETHYLENE, CARBON TETRACHLORIDE AND STODDARD SOLVENT, REMOVING ESSENTIALLY ALL OF THE DRY-CLEANING SOLVENT SOLUTION AND EVAPORATING THE REMAINDER WHEREBY SAID GAS FADING INHIBITING AGENT IS LEFT SUBSTANTIALLY UNIFORMLY DISTRIBUTED OVER SAID GARMENT.
US261384A 1951-12-12 1951-12-12 Dry cleaning of cellulose acetate fabrics with a fading inhibitor in the solvent Expired - Lifetime US2741533A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US261384A US2741533A (en) 1951-12-12 1951-12-12 Dry cleaning of cellulose acetate fabrics with a fading inhibitor in the solvent
GB31394/52A GB729170A (en) 1951-12-12 1952-12-11 Treatment of textile materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US261384A US2741533A (en) 1951-12-12 1951-12-12 Dry cleaning of cellulose acetate fabrics with a fading inhibitor in the solvent

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US2741533A true US2741533A (en) 1956-04-10

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB243841A (en) * 1924-09-23 1925-12-10 British Celanese Improvements relating to the dyeing, printing or stencilling of cellulose acetate
US2017119A (en) * 1931-02-11 1935-10-15 Celanese Corp Treatment of textile and other materials
GB558784A (en) * 1942-07-18 1944-01-20 Benjamin Collie Improvements in or relating to the colouration of cellulose esters and ethers
US2409325A (en) * 1943-01-14 1946-10-15 Celanese Corp Inhibiting treatment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB243841A (en) * 1924-09-23 1925-12-10 British Celanese Improvements relating to the dyeing, printing or stencilling of cellulose acetate
US2017119A (en) * 1931-02-11 1935-10-15 Celanese Corp Treatment of textile and other materials
GB558784A (en) * 1942-07-18 1944-01-20 Benjamin Collie Improvements in or relating to the colouration of cellulose esters and ethers
US2409325A (en) * 1943-01-14 1946-10-15 Celanese Corp Inhibiting treatment

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Publication number Publication date
GB729170A (en) 1955-05-04

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