US3575686A - Treatment of textiles - Google Patents

Treatment of textiles Download PDF

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Publication number
US3575686A
US3575686A US586663A US3575686DA US3575686A US 3575686 A US3575686 A US 3575686A US 586663 A US586663 A US 586663A US 3575686D A US3575686D A US 3575686DA US 3575686 A US3575686 A US 3575686A
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United States
Prior art keywords
solvent
textile material
textile
stage
bath
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US586663A
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John William Case
Norman Frederick Crowder
Wilfred Arthur Stephen White
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Imperial Chemical Industries Ltd
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Imperial Chemical Industries Ltd
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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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D06F43/007—Dry cleaning methods
    • 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
    • D06L1/06—De-sizing
    • 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
    • D06L1/22—Processes involving successive treatments with aqueous and organic agents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/10—Processes in which the treating agent is dissolved or dispersed in organic solvents; Processes for the recovery of organic solvents thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/90—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in organic solvents or aqueous emulsions thereof
    • 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
    • Y10S8/93—Pretreatment before dyeing
    • 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
    • Y10S8/93—Pretreatment before dyeing
    • Y10S8/931—Washing or bleaching

Definitions

  • This invention relates to a process for the treatment of textile materials and more particularly to process improvements or modifications which can be used in conjunction with the scouring of textile materials with organic solvents.
  • this procedure is especially useful when carried out in conjunction with dyeing the material while it is in an open and absorbent condition by including a dyestuff in the water used in the flash-01f system.
  • This procedure can be modified so as to apply a finishing agent to the material.
  • a process for the treatment of a textile material which comprises scouring the textile material with an organic solvent, removing the solvent from the textile material in an aqueous flash-off stage and application of a dyestuif or finishing agent to the textile material in the aqueous flash-off stage.
  • the hot water flash-off" bath will contain the dyestutf or finishing agent.
  • a preliminary aqueous desizing step is particularly advantageous when a starch, cellulose ether or similar size has been used on a fibre, for example on cellulose fibre such as cotton or rayon.
  • the solvents and techniques which can be used for the solvent scouring stage may be in particular any of those described more fully in UK. specifications Nos. 812,984; 916,338; 747,481; 749,705; 812,893; 844,943; 825,402; 1,042,398 and patent application No. 9,975/65.
  • the solvent may be in particular trichloroethylene, perchloroethylene, 1,1,2-trichloro-1,2,2-trifiuoroethane or mixtures thereof.
  • the choice of solvent to be used depends very much upon the particular textile material concerned and the solvent is best chosen so that its solvent properties and boiling point are such that its use will not adversely affect the textile material.
  • a low-boiling solvent for example, 1,1,2- trichloro-1,2,2-trifluoroethane, in the case of textile materials which are particularly sensitive to heat or solvent action.
  • a dyestuli may involve the use of any of the conventional dyestuffs, dyeing assistants and auxiliary products known in the art, and these may be selected appropriately to the textile material concerned.
  • Suitable dyestuffs include water-soluble, water-dispersible and reactive dyes and suitable finishing agents include brightening and softening agents and fiuoroescent whiteners.
  • the temperature of the dye bath when the textile material is dyed in a hot-water flash 01f, should be sufficiently high to ensure the rapid removal of the solvent (a minimum temperature of 86 C. and 73 C. is required for perchloroethylene and trichloroethylene respectively).
  • the temperature of the dye bath need not necessarily be so high.
  • Times of residence in the solventscouring bath, the steam treatment chamber and/or the bath in which the dye or finishing agent are applied will vary with the textile material to be treated, the solvent used and the type of dye or finishing agent to be applied. Suitable times may be found very easily by simple experiment, but in general we have found that times of from 10 to 60 seconds in the solvent bath, and from 10 to 30 seconds in a steam flash-off chamber (if used) are suitable.
  • the time of residence in the bath in which the dyestuff or finishing agent is applied to the textile material will vary with the method of application, for example times of from 2 to 60 seconds are suitable for dyestuffs or finishing agents which are simply applied to the textile material in the bath and are then set on the material at a later stage, but times of up about minutes may be necessary if transfer of dyestuff or finishing agent onto the material occurs only in the bath and there is no subsequent setting stage.
  • concentration of dyestuff or finishing agent and the general conditions under which it is applied will be those well known in the art or will be slightly modified in obvious ways to suit the particular conditions pertaining.
  • EXAMPLE 1 100 parts of (a) a plain weave cotton fabric or (b) a heavy cotton canvas or (c) a medium spun viscose rayon were separately immersed in 5000 parts of boiling trichloroethylene for a period of seconds.
  • the fabric was removed from the trichloroethylene, squeezed between rollers to a total weight of 250 parts and entered directly into 5000 parts of a boiling, aqueous dyebath containing 50 parts of those dyes recorded in the Colour Index as (a) Direct Red 1 (CI 22310) (b) Direct Blue 86 (CT 74180 (0) Direct Blue 76 (CI 22410). After 30 seconds immersion the fabric was removed, squeezed through rollers to a total weight of 200 parts and dried in hot air. The fabric was in each of the nine possible combinations of the three individual fabrics with the three individual dyestuffs dyed to a level, well penetrated shade.
  • EXAMPLE 2 100 parts of (a) Botany wool serge fabric (b) wool felt fabric, (c) spun nylon 66 fabric, ((1) a fabric woven from nylon 6 filament were separately immersed in 5000 parts of boiling trichloroethylene for a period of 30 seconds.
  • the fabric was removed from the trichloroethylene, squeezed between rollers to a total weight of 240 parts and entered directly into 5000 parts of a boiling, aqueous dyebath containing parts of a dye recorded in the Colour Index as Acid Blue 138 (CI 62075). After 30 seconds immersion the fabric was removed, squeezed through rollers to a total weight of 200 parts and dried in hot air. In each case the fabric was dyed to a level, well penetrated blue shade.

Abstract

THERE IS PROVIDED AN IMPROVEMENT IN THE PROCESS WHEREBY TEXTILE MATERIALS ARE SOLVENT SCOURED. THE SOLVENT IS FLASHED OFF AND THEREAFTER THE TEXTILE MATERIAL IS FINISHED OR DYED. THE IMPROVEMENT RESIDES IN APPLYING THE FINISH OF DYESTUFF IN THE FLASH-OFF STAGE OF THE KNOWN PROCESS.

Description

United States Patent 3,575,686 TREATMENT OF TEXTILES John William Case, Norman Frederick Crowder, and
Wilfred Arthur Stephen White, Runcorn, England, assignors to Imperial Chemical Industries Limited, London, England No Drawing. Continuation-impart of application Ser. No. 549,498, May 12, 1966. This application Oct. 14, 1966, Ser. No. 586,663 Claims priority, application Great Britain, June 24, 1965, 21,905/65 Int. Cl. D061 N02 US. Cl. 8-142 6 Claims ABSTRACT OF THE DISCLOSURE There is provided an improvement in the process whereby textile materials are solvent scoured. The solvent is flashed off and thereafter the textile material is finished or dyed. The improvement resides in applying the finish or dyestuff in the flash-off stage of the known process.
This application is a continuation-in-part of copending application Ser. No. 549,498, filed on May 12, 1966, now US. Pat. No. 3,476,504.
This invention relates to a process for the treatment of textile materials and more particularly to process improvements or modifications which can be used in conjunction with the scouring of textile materials with organic solvents.
It is known, for example in UK. specifications Nos. 812,984 and 916,338 to treat textile materials with an organic solvent, particularly a chlorinated hydrocarbon solvent, in order to clean them. This procedure is sometimes termed a solvent scouring treatment. In such a process the textile material is passed through a bath of organic solvent, under conditions which enable contamination to be removed from the textile materials, and then the treated textile material laden with solvents is passed through an apparatus in which the solvent is evaporated and recovered. This final stage commonly termed the flash-oft stage, may be carried out using hot water or steam.
We have now found that this procedure is especially useful when carried out in conjunction with dyeing the material while it is in an open and absorbent condition by including a dyestuff in the water used in the flash-01f system. This procedure can be modified so as to apply a finishing agent to the material.
According to our invention we provide a process for the treatment of a textile material which comprises scouring the textile material with an organic solvent, removing the solvent from the textile material in an aqueous flash-off stage and application of a dyestuif or finishing agent to the textile material in the aqueous flash-off stage.
When steam is used it is usual to pass the textile material from the solvent bath through squeeze rollers to remove excess solvent, and then through an aqueous flash-off stage which comprises a space in which the textile material is contacted with steam and a water seal through which the textile material leaves the apparatus. In such a case the dyestufi or finishing agent will be incorporated in the water seal.
When hot water and not steam is used in the flash-oft stage it is usual for the textile material to pass from the solvent bath through squeeze rollers to remove excess solvent and then directly into a bath of water held at a sufiiciently high temperature to flash-0E the solvent. In
such a case the hot water flash-off" bath will contain the dyestutf or finishing agent.
Our process is particularly convenient when the textile material to be terated contains only solvent-soluble textile assistants, for example assistants (such as sizes), which have been applied to the textile fibres from solution in an organic solvent as is more fully described in our copending U.K. application No. 21,906/ 65.
By using, prior to the solvent scouring stage, textile assistants which are entirely soluble in the organic solvent we find that the solvent scouring stage can remove practically all contamination from the textile material and leave it in such a condition that, after the adherent organic solvent is removed, it is thoroughly clean and absorbent and in an excellent condition for dyeing.
When the textile assistants used in the weaving of the textile material are not entirely solvent-soluble, there may be a tendency for any residues remaining on the cloth after the solvent scouring stage to interfere slightly with the efliciency of the stage in which the dye or finishing agent is applied, though in many cases this may not be of more importance than slightly decreasing the efiiciency of finishing agent or dyestutf usage. It is however generally desirable to remove as much contamination as possible before the textile is passed to the stage at which the dye or finishing agent is applied, and if necessary an aqueous desizing step may precede the solvent scouring step. A preliminary aqueous desizing step is particularly advantageous when a starch, cellulose ether or similar size has been used on a fibre, for example on cellulose fibre such as cotton or rayon.
The solvents and techniques which can be used for the solvent scouring stage may be in particular any of those described more fully in UK. specifications Nos. 812,984; 916,338; 747,481; 749,705; 812,893; 844,943; 825,402; 1,042,398 and patent application No. 9,975/65. Thus the solvent may be in particular trichloroethylene, perchloroethylene, 1,1,2-trichloro-1,2,2-trifiuoroethane or mixtures thereof. The choice of solvent to be used depends very much upon the particular textile material concerned and the solvent is best chosen so that its solvent properties and boiling point are such that its use will not adversely affect the textile material. In particular, it may be appropriate to use a low-boiling solvent, for example, 1,1,2- trichloro-1,2,2-trifluoroethane, in the case of textile materials which are particularly sensitive to heat or solvent action.
During the solvent flash-off solvent or an azeotrope of the solvent and water is vogorously evaporated thus leaving the textile material in an open and highly absorbent state and we believe that one of the advantages of our process lies in the application of the dyestulf or finishing agent to the material while it is in such a highly absorbent state, thus giving a high rate of uptake and a high and even penetration of dyestutf or finishing agent.
The application of a dyestuli may involve the use of any of the conventional dyestuffs, dyeing assistants and auxiliary products known in the art, and these may be selected appropriately to the textile material concerned. Suitable dyestuffs include water-soluble, water-dispersible and reactive dyes and suitable finishing agents include brightening and softening agents and fiuoroescent whiteners. The temperature of the dye bath, when the textile material is dyed in a hot-water flash 01f, should be sufficiently high to ensure the rapid removal of the solvent (a minimum temperature of 86 C. and 73 C. is required for perchloroethylene and trichloroethylene respectively). When the textile is dyed in a Water seal after contact with steam the temperature of the dye bath need not necessarily be so high. Times of residence in the solventscouring bath, the steam treatment chamber and/or the bath in which the dye or finishing agent are applied will vary with the textile material to be treated, the solvent used and the type of dye or finishing agent to be applied. Suitable times may be found very easily by simple experiment, but in general we have found that times of from 10 to 60 seconds in the solvent bath, and from 10 to 30 seconds in a steam flash-off chamber (if used) are suitable. The time of residence in the bath in which the dyestuff or finishing agent is applied to the textile material will vary with the method of application, for example times of from 2 to 60 seconds are suitable for dyestuffs or finishing agents which are simply applied to the textile material in the bath and are then set on the material at a later stage, but times of up about minutes may be necessary if transfer of dyestuff or finishing agent onto the material occurs only in the bath and there is no subsequent setting stage. The concentration of dyestuff or finishing agent and the general conditions under which it is applied will be those well known in the art or will be slightly modified in obvious ways to suit the particular conditions pertaining.
The invention is illustrated but in no way limited by reference to the following examples in which the parts are by weight.
EXAMPLE 1 100 parts of (a) a plain weave cotton fabric or (b) a heavy cotton canvas or (c) a medium spun viscose rayon were separately immersed in 5000 parts of boiling trichloroethylene for a period of seconds. The fabric was removed from the trichloroethylene, squeezed between rollers to a total weight of 250 parts and entered directly into 5000 parts of a boiling, aqueous dyebath containing 50 parts of those dyes recorded in the Colour Index as (a) Direct Red 1 (CI 22310) (b) Direct Blue 86 (CT 74180 (0) Direct Blue 76 (CI 22410). After 30 seconds immersion the fabric was removed, squeezed through rollers to a total weight of 200 parts and dried in hot air. The fabric was in each of the nine possible combinations of the three individual fabrics with the three individual dyestuffs dyed to a level, well penetrated shade.
EXAMPLE 2 100 parts of (a) Botany wool serge fabric (b) wool felt fabric, (c) spun nylon 66 fabric, ((1) a fabric woven from nylon 6 filament were separately immersed in 5000 parts of boiling trichloroethylene for a period of 30 seconds.
The fabric was removed from the trichloroethylene, squeezed between rollers to a total weight of 240 parts and entered directly into 5000 parts of a boiling, aqueous dyebath containing parts of a dye recorded in the Colour Index as Acid Blue 138 (CI 62075). After 30 seconds immersion the fabric was removed, squeezed through rollers to a total weight of 200 parts and dried in hot air. In each case the fabric was dyed to a level, well penetrated blue shade.
What we claim is:
1. In a process for the treatment of a textile material by scouring the textile material with an organic solvent, removing the solvent from the textile material in an aqueous flash-off stage and applying a member selected from the group consisting of a dyestuff and finishing agent to the textile material the improvement comprising applying the said member in the flash-off stage.
2. Process as claimed in claim 1 wherein the said member is applied to the textile material in a hot water flash-off bath.
3. Process as claimed in claim 1 wherein the textile material is subjected to an aqueous desizing step before it is scoured with the organic solvent.
4. Process as claimed in claim 1 wherein the textile remains in a solvent-scouring bath for from 10 to seconds.
5. Process as claimed in claim 1 wherein the textile material remains in an aqueous bath containing the said member for up to 5 minutes.
6. Process as claimed in claim 5 wherein the textile material remains in the aqueous bath for from 2 to 60 seconds.
References Cited UNITED STATES PATENTS 2,540,311 2/1951 Wolff 117-1385 2,729,576 1/1956 Trusler 252-D.C. 3,106,460 10/1963 TOpham et al 8-142X 3,404,943 10/ 1968 Morris 8139 MAYER WEINBLATT, Primary Examiner US. Cl. X.R.
8-18, 138, 139; ll7--l37.5
Disclaimer 3,575,686.--J0hn William Oase, Norman Frederick Crowder, and Wilfred Arthur Ste hen White, Runcorn, England. TREATMENT OF TEXTILE Patent dated Apr. 20, 1971. Disclaimer filed Dec. 15, 1969, by the assignee, Imperial Ohemz'eal Industries Limited. Hereby disclaims the portion of the term of the patent subsequent to Nov. 4, 1986.
[Ofiez'al Gazette September 1%, 1.972]
US586663A 1965-06-24 1966-10-14 Treatment of textiles Expired - Lifetime US3575686A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB21905/65A GB1073659A (en) 1965-06-24 1965-06-24 Treatment of textiles
US54949866A 1966-05-12 1966-05-12
BE682935 1966-06-22
NL6609072A NL6609072A (en) 1965-06-24 1966-06-29

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US3575686A true US3575686A (en) 1971-04-20

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US549469A Expired - Lifetime US3458273A (en) 1965-06-24 1966-05-12 Treatment of textiles
US549498A Expired - Lifetime US3476504A (en) 1965-06-24 1966-05-12 Treatment of textiles
US586663A Expired - Lifetime US3575686A (en) 1965-06-24 1966-10-14 Treatment of textiles

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US549469A Expired - Lifetime US3458273A (en) 1965-06-24 1966-05-12 Treatment of textiles
US549498A Expired - Lifetime US3476504A (en) 1965-06-24 1966-05-12 Treatment of textiles

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US (3) US3458273A (en)
BE (1) BE682935A (en)
DE (1) DE1610979A1 (en)
GB (1) GB1073659A (en)
NL (1) NL6609072A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991481A (en) * 1975-05-28 1976-11-16 E. I. Du Pont De Nemours And Company Process for recovering volatile organic liquids
US4234311A (en) * 1979-06-27 1980-11-18 Bruckner Apparatebau Gmbh Processes for removing impurities from textile materials
CN112411212A (en) * 2020-11-12 2021-02-26 上海韬睿纺织科技有限公司 Production method of nylon super-high-elasticity fabric

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630660A (en) * 1968-10-31 1971-12-28 Burlington Industries Inc Process for removal of moisture and/or solvents from textile materials
US3841833A (en) * 1972-08-24 1974-10-15 Gen Mills Chem Inc Recoverable warp sizing
GB1493972A (en) * 1974-02-28 1977-12-07 Brueckner Apparatebau Gmbh Removing contamination from textiles
US4076629A (en) * 1976-05-28 1978-02-28 The Dow Chemical Company Solvent soluble warp size
US4253840A (en) * 1979-03-20 1981-03-03 Burlington Industries, Inc. Hot-melt size compositions and process for textiles
FR2569986B1 (en) * 1984-09-11 1992-07-31 Centre Nat Rech Scient REPLACEMENT AND REPAIR PROSTHESES BASED ON POLYARYLAMIDE FIBERS AND MATERIALS OR PRODUCTS FOR SURGICAL USE
US5486211A (en) * 1994-09-26 1996-01-23 Glidden, Sr.; John L. Wool purification

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2176705A (en) * 1939-10-17 Method and apparatus fob continu
CA600765A (en) * 1960-06-28 Imperial Chemical Industries Limited Desizing process
GB603285A (en) * 1944-09-21 1948-06-14 Joseph Hamak Improvements in or relating to electric razors
US2549014A (en) * 1945-06-22 1951-04-17 Us Rubber Co Treatment of cellulosic fibers
NL97827C (en) * 1953-01-20
US3042479A (en) * 1960-11-29 1962-07-03 Du Pont Chlorofluorohydrocarbons in dry cleaning compositions and process
BE611618A (en) * 1960-12-23

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991481A (en) * 1975-05-28 1976-11-16 E. I. Du Pont De Nemours And Company Process for recovering volatile organic liquids
US4234311A (en) * 1979-06-27 1980-11-18 Bruckner Apparatebau Gmbh Processes for removing impurities from textile materials
CN112411212A (en) * 2020-11-12 2021-02-26 上海韬睿纺织科技有限公司 Production method of nylon super-high-elasticity fabric

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DE1610979A1 (en) 1972-03-02
GB1073659A (en) 1967-06-28
US3458273A (en) 1969-07-29
US3476504A (en) 1969-11-04
NL6609072A (en) 1968-01-02
BE682935A (en) 1966-12-22

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