US3630660A - Process for removal of moisture and/or solvents from textile materials - Google Patents

Process for removal of moisture and/or solvents from textile materials Download PDF

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Publication number
US3630660A
US3630660A US772264A US63066068A US3630660A US 3630660 A US3630660 A US 3630660A US 772264 A US772264 A US 772264A US 63066068 A US63066068 A US 63066068A US 3630660 A US3630660 A US 3630660A
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United States
Prior art keywords
solvent
textile material
textile
vacuum
temperature
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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
Application number
US772264A
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English (en)
Inventor
Frederick C Wedler
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Burlington Industries Inc
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Burlington Industries Inc
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005—Treatment of dryer exhaust gases
    • F26B25/006—Separating volatiles, e.g. recovering solvents from dryer exhaust gases
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/06—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path
    • F26B13/08—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path using rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005—Treatment of dryer exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • 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

  • the textile material which has been treated by scouring with a solvent or with a solvent containing a treatment material, or a textile which has been treated by a solvent media for the application of chemicals, dyestuffs, or the like, is subjected to vacuum, and if desired, to a predetermined controlled temperature for a predetermined controlled time period in order to remove residual solvent from the textile, and from any desired treating materials.
  • the temperature may be elevated above that necessary to vaporize the residual solvent so that the chemicals or dyestuffs may react and be deposited on the textile material and be affixed thereto.
  • a solvent can be defined as that which dissolves," i.e., a medium into which other materials can be put into solution or suspension to give fluency.
  • Water is the most generally used solvent, and is treated here in the same context as the lowboiling hydrocarbon solvents, that is, a solvent to be recovered.
  • the present invention is concerned with certain improvements in the treating of textile materials, preferably in web form, so that the material may be continuously treated, although it is contemplated that the process and apparatus is applicable for a batch treatment.
  • the present invention is related to, and is an improvement of the inventions of the aforementioned applications, but it utilizes a vacuum not merely to degas the textile material but to vaporize any moisture such as water and/or solvent in the material after certain treating operations, so that the textile material emerges from the vacuum treatment in a substantially dry condition, ready for any desired subsequent treatment. Additionally, the present invention contemplates removing, by use of vacuum and temperature, if desired, the solvent from a system in which the textiles are treated or materials are applied, such as chemicals or dyestuffs. Such removal of solvent effectively causes the reaction and fixation of the applied materials to the textile material, the textile material still emerging from the treatment in a dry condition, if desirable.
  • Removal of solvent from the treatment atmosphere is critically important when high temperatures are subsequently employed, sufficient to break down the solvent and form poisonous gases. Such complete removal of solvent is not possible with conventional systems that remove both solvent and moisture.
  • a principal object ofthe present invention is to provide an improved process and apparatus for removing moisture such as water and/or other solvents from textile or other materials,the process and apparatus contemplating the complete recovery of the solvent and the substantial drying of the treated material.
  • Ancillary to the'preceding objects it is a further object of the present invention to provide a process and an apparatus which will not only remove and recover solvents by utilizing a vacuum and controlled temperatures, but will also assist in causing improved reaction and fixation of chemicals or dyestuffs to the textile material when such chemicals or dyestuffs are utilized in a solvent media.
  • Another important object of the present invention is to provide an improved process and apparatus for removal and recovery of solvents from textile material and from the atmosphere in the treating zone in a minimum of time at any selected temperatures in a vacuum, the temperature being either reduced, ambient or elevated, and the textile material emerging substantially dry whereby further treatment may be immediately accomplished if desired.
  • process of the present invention is capable of use in the batch treatment of various types of textile materials, the process will be described in relationship to an embodiment for the removal of moisture and/or solvents from the textile material by a continuous treatment of the same, either following a treatment involving some application of solvent or moisture to the textile, or in a treatment involving the deposition of material on the textile from solvent media, or as a prelude to a subsequent treatment step requiring solvent free material and/or atmosphere.
  • the invention will be described in the treatment of textile material in the form of webs or continuous lengthsof materials such as woven, nonwoven, knittedor stitch-bonded fabrics, multifilament yarns, yarn bundles, silver, roving, tow, or the like, but it will be appreciated that materials other than the foregoing conventional textiles, such as paper, leather, plastic and the like, may utilize the process and apparatus described herein.
  • the present'invention involves the passing of a textile or other weblike or continuous yarnlike material through a vacuum chamber, the material having moisture and/or a residual solvent therein prior to entry into the chamber.
  • the textile material may have been scoured in a solvent scouring liquid or it may have had a solvent media comprising a solvent and'a chemical or dyestuffor the like applied thereto.
  • the vacuum within the chamber and by controlling the temperature, if desired, within the chamber, aswell as the length of time for the textile or other material to pass through the chamber, allor most of the residual solvent may be removed and recovered for reuse, both from the material, and from the surrounding atmosphere. That is, it is necessary first to remove the solvent from the treated substrate, and second to remove solvent vapor from the treatment chamber to a point where it can be condensed and recovered.
  • FIG. 1 illustrates a diagrammatic vertical sectional view of an improved apparatus for accomplishing the process of the present invention, the same utilizing nip rolls for padding the textile material and scaling for entry to the vacuum chamber;
  • FIG. 2 is a diagrammatic vertical sectional view similar to FIG. 1 but providing a separate vacuum seal for the inlet to the vacuum chamber, the material passing through a pair of nip rolls for padding or applying the solvent media prior to passing through the vacuum seal;
  • FIG. 3 illustrates a vertical sectional view through a further modified form of the apparatus of the present invention; the textile material passing through the apparatus in a generally horizontal direction;
  • FIG. 4 is a diagrammatic vertical sectional view of a still further modified form of the apparatus, the view illustrating the use of the vacuum chamber with a solvent scouring device
  • FIG. 4 is a diagrammatic vertical sectional view of a still further modified form of the apparatus, the view illustrating the use of the vacuum chamber with a solvent scouring device
  • Outlet opening 20 for the chamber 12 is provided with a suitable vacuum seal 22 through which the textile material T passes out of the chamber 12.
  • means 24 for heating the chamber 12 the means being infrared, dielectric, radiant, or other types of heaters.
  • Suitable control means (not shown) are provided for the heater means 24 so that the heat within the chamber can be controlled to a desired temperature for a particular treatment.
  • a plurality of cooling coils are provided, the cooling coils 26 receiving a coolant through a conduit 28 from a suitable condenser.
  • the purpose of the cooling coils 26 is to condense the solvent vapor when the same contacts the coils, the solvent vapor being condensed to a liquid and withdrawn from the chamber 24 by a vacuum pump 30 through a conduit 29 and then discharged into a tank 32 where it may be reclaimed for reuse.
  • This apparatus is to be treated as illustrative only however, as the solvent vapor recovered could easily be condensed elsewhere, preferably at a point removed from the vacuum treatment chamber 10.
  • FIG. 2 The apparatus of FIG. 2 is substantially identical to that of FIG. 1 except that the inlet opening 16' is provided with a vacuum seal 22' similar to the outlet vacuum seal 22.
  • the pair of padder rolls 14' for applying the solvent media 18 are located immediately adjacent the vacuum seal 22 but do not in themselves provide the inlet seal as do the padder rolls I4.
  • the rigid boxlike structure 10 has a substantially horizontally extending vacuum chamber 12'.
  • An inlet opening 16 which is identical to the opening 16 of FIG. 1, is provided at one end of the structure 10 in the top wall thereof.
  • the opening 16 has rubber-sealing rollers 14 associated therewith which act not only as a means for padding the textile material with the solvent media II! but also as a vacuum seal for the inlet opening 16.
  • an exit vacuum seal 22 for the outlet opening 20.
  • the bottom wall of the tank 10' is sloped as indicated at 40 and the wall is provided on the interior thereof with a plurality of coolant coils 26 supplied with coolant through the conduit 28 for the purpose of condensing the vaporized solvent, the same draining through the discharge conduit 29 and drawn therethrough by the vacuum pump 30 for reclaiming.
  • the textile material passes into a vacuum chamber with a solvent media thereon and then continuously passes from the chamber in a completely dry state with the solvent of the solvent media being vaporized from the chamber and then being condensed and withdrawn therefrom in liquid form for reuse.
  • the chemicals or dyestuffs of the solvent media will react and be fixed to the textile material T.
  • the temperature must be elevated at least to a controlled degree sufficient to cause vaporization of the solvent at the particular vacuum applied. However, this temperature is considerably lower than the temperature necessary for vaporization at atmospheric pressure.
  • the textile material is discharged from the vacuum chambers, it will have all of the solvent removed, the solvent being recovered and the textile material being dry and ready for any subsequent treatment.
  • a scouring tank 50 of the conventional type is used to scour the textile material T prior to its entry into a vacuum chamber 52 of the boxlike structure 54.
  • the scouring tank 50 is provided with a series of baths B, B and B", the baths being a scouring solution including a solvent.
  • the bath 8 has the strongest solution therein, the other baths B and B" receiving the overflow respectively from the adjacent bath.
  • an inlet vacuum seal 56 through which a textile material T passes as it leaves the tank 50 and enters the chamber 52.
  • the textile material T goes through a pair of pressure rolls 58 which squeeze excess scouring solution from the same, the solution dropping into the bath B.
  • the heaters 24 within the vacuum chamber 52 vaporize any solvent left in the textile material T and by the time the textile material is discharged from the exit vacuum seal 60, it will be dry with all solvent having been removed by vaporization of the same, the solvent itself being reclaimed by condensing on the coils 26 and withdrawing from the chamber 52 through a line 62 to a vacuum pump and reservoir (not shown).
  • the vacuum treatment can either precede or follow another treatment step, or the treatment can take place as an integral part of the vacuum removal step, by deposition of material, curing, etc.
  • a desirable embodiment would be utilization of the invention following conventional steam solvent flash off. Typically, this leaves 0.5-l percent residual solvent, in a fairly rapid and economic process. Further solvent recovery is of course impossible with the conventional steam system. Such a procedure could be followed by the device according to the drawings, or other modification, and realize substantially complete solvent removal/recovery.
  • a process for the treatment of textile material in web or continuous length form including removing a liquid solvent media entrained in the textile material comprising the steps of: subjecting the textile material to a relatively strong vacuum in an enclosed zone; controlling the temperature within the enclosed zone so that the temperature is elevated sufficiently to vaporize the solvent; removing the textile material from the enclosed zone, condensing the evaporated solvent removed from the textile material, collecting the so-condensed liquid and withdrawing it from the enclosed zone separately from the removal of the textile material from the enclosed zone.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Drying Of Solid Materials (AREA)
US772264A 1968-10-31 1968-10-31 Process for removal of moisture and/or solvents from textile materials Expired - Lifetime US3630660A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77226468A 1968-10-31 1968-10-31

Publications (1)

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US3630660A true US3630660A (en) 1971-12-28

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US772264A Expired - Lifetime US3630660A (en) 1968-10-31 1968-10-31 Process for removal of moisture and/or solvents from textile materials

Country Status (11)

Country Link
US (1) US3630660A (de)
AT (1) AT296204B (de)
BE (1) BE740094A (de)
CA (1) CA925694A (de)
CH (2) CH542416A (de)
DE (1) DE1954177A1 (de)
ES (1) ES372704A1 (de)
FR (1) FR2021989A1 (de)
GB (1) GB1256016A (de)
NL (1) NL6916261A (de)
SE (1) SE358910B (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6042617A (en) * 1997-08-22 2000-03-28 Greenearth Cleaning, Llc Dry cleaning method and modified solvent
US6042618A (en) * 1997-08-22 2000-03-28 Greenearth Cleaning Llc Dry cleaning method and solvent
US6056789A (en) * 1997-08-22 2000-05-02 Greenearth Cleaning Llc. Closed loop dry cleaning method and solvent
US6059845A (en) * 1997-08-22 2000-05-09 Greenearth Cleaning, Llc Dry cleaning apparatus and method capable of utilizing a siloxane composition as a solvent
US6063135A (en) * 1997-08-22 2000-05-16 Greenearth Cleaning Llc Dry cleaning method and solvent/detergent mixture
US6086635A (en) * 1997-08-22 2000-07-11 Greenearth Cleaning, Llc System and method for extracting water in a dry cleaning process involving a siloxane solvent
US6310029B1 (en) * 1999-04-09 2001-10-30 General Electric Company Cleaning processes and compositions
EP1227289A1 (de) * 2001-01-29 2002-07-31 LAFER SpA Trocknungsverfahren für Textilmaterial oder gegerbte Häute, sowie Vorrichtung dafür
US20030074742A1 (en) * 2000-03-03 2003-04-24 General Electric Company Siloxane dry cleaning composition and process
US6605123B1 (en) 1999-04-16 2003-08-12 General Electric Company Silicone finishing compositions and processes
US20110095308A1 (en) * 2008-05-15 2011-04-28 E. I. Du Pont De Nemours And Company Process for forming an electroactive layer
EP2406814A4 (de) * 2009-03-09 2012-07-25 Du Pont Verfahren zur formung einer elektroaktiven schicht
EP2406813A4 (de) * 2009-03-09 2012-07-25 Du Pont Verfahren zur formung einer elektroaktiven schicht
US8778708B2 (en) 2009-03-06 2014-07-15 E I Du Pont De Nemours And Company Process for forming an electroactive layer
CN110953874A (zh) * 2019-11-19 2020-04-03 云南中翼鼎东能源科技开发有限公司 一种具有安全保护功能的褐煤干燥机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA71608C2 (en) * 1999-03-11 2004-12-15 Merck Patent Gmbh A method for producing the cyclic pentapeptide
CN111964407A (zh) * 2020-08-24 2020-11-20 周华 一种节能型的纺织用烘干除尘设备
CN113932591B (zh) * 2021-11-09 2022-12-23 杭州职业技术学院 一种具有烘干功能的服装生产加工装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441991A (en) * 1946-10-10 1948-05-25 Converse Sherman Apparatus for boiling out cloth
US3476504A (en) * 1965-06-24 1969-11-04 Ici Ltd Treatment of textiles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441991A (en) * 1946-10-10 1948-05-25 Converse Sherman Apparatus for boiling out cloth
US3476504A (en) * 1965-06-24 1969-11-04 Ici Ltd Treatment of textiles

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6042617A (en) * 1997-08-22 2000-03-28 Greenearth Cleaning, Llc Dry cleaning method and modified solvent
US6042618A (en) * 1997-08-22 2000-03-28 Greenearth Cleaning Llc Dry cleaning method and solvent
US6056789A (en) * 1997-08-22 2000-05-02 Greenearth Cleaning Llc. Closed loop dry cleaning method and solvent
US6059845A (en) * 1997-08-22 2000-05-09 Greenearth Cleaning, Llc Dry cleaning apparatus and method capable of utilizing a siloxane composition as a solvent
US6063135A (en) * 1997-08-22 2000-05-16 Greenearth Cleaning Llc Dry cleaning method and solvent/detergent mixture
US6086635A (en) * 1997-08-22 2000-07-11 Greenearth Cleaning, Llc System and method for extracting water in a dry cleaning process involving a siloxane solvent
US6310029B1 (en) * 1999-04-09 2001-10-30 General Electric Company Cleaning processes and compositions
US6605123B1 (en) 1999-04-16 2003-08-12 General Electric Company Silicone finishing compositions and processes
US20030074742A1 (en) * 2000-03-03 2003-04-24 General Electric Company Siloxane dry cleaning composition and process
EP1227289A1 (de) * 2001-01-29 2002-07-31 LAFER SpA Trocknungsverfahren für Textilmaterial oder gegerbte Häute, sowie Vorrichtung dafür
US20110095308A1 (en) * 2008-05-15 2011-04-28 E. I. Du Pont De Nemours And Company Process for forming an electroactive layer
US8778785B2 (en) 2008-05-15 2014-07-15 E I Du Pont De Nemours And Company Process for forming an electroactive layer
US8907353B2 (en) 2008-05-15 2014-12-09 E I Du Pont De Nemours And Company Process for forming an electroactive layer
US8778708B2 (en) 2009-03-06 2014-07-15 E I Du Pont De Nemours And Company Process for forming an electroactive layer
EP2406814A4 (de) * 2009-03-09 2012-07-25 Du Pont Verfahren zur formung einer elektroaktiven schicht
EP2406813A4 (de) * 2009-03-09 2012-07-25 Du Pont Verfahren zur formung einer elektroaktiven schicht
US9209397B2 (en) 2009-03-09 2015-12-08 Dupont Displays Inc Process for forming an electroactive layer
US9209398B2 (en) 2009-03-09 2015-12-08 E I Du Pont De Nemours And Company Dupont Displays Inc Process for forming an electroactive layer
CN110953874A (zh) * 2019-11-19 2020-04-03 云南中翼鼎东能源科技开发有限公司 一种具有安全保护功能的褐煤干燥机

Also Published As

Publication number Publication date
SE358910B (de) 1973-08-13
ES372704A1 (es) 1971-11-01
CH542416A (de) 1973-04-30
DE1954177A1 (de) 1970-06-04
GB1256016A (en) 1971-12-08
CH1551769A4 (de) 1973-04-30
BE740094A (de) 1970-03-16
CA925694A (en) 1973-05-08
AT296204B (de) 1972-02-10
FR2021989A1 (de) 1970-07-24
NL6916261A (de) 1970-05-04

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AS Assignment

Owner name: BI/MS HOLDINGS I INC., A DE. CORP.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BURLINGTON INDUSTRIES, INC.,;REEL/FRAME:004811/0598

Effective date: 19870903