US3745666A - Drying of fabrics treated with chlorinated hydrocarbons - Google Patents
Drying of fabrics treated with chlorinated hydrocarbons Download PDFInfo
- Publication number
- US3745666A US3745666A US00189798A US3745666DA US3745666A US 3745666 A US3745666 A US 3745666A US 00189798 A US00189798 A US 00189798A US 3745666D A US3745666D A US 3745666DA US 3745666 A US3745666 A US 3745666A
- Authority
- US
- United States
- Prior art keywords
- fabric
- set forth
- temperature
- method set
- air
- 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
Links
- 239000004744 fabric Substances 0.000 title claims abstract description 46
- 238000001035 drying Methods 0.000 title abstract description 18
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 6
- 238000009835 boiling Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 description 11
- 239000004753 textile Substances 0.000 description 5
- 238000007602 hot air drying Methods 0.000 description 4
- 239000000975 dye Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000013557 residual solvent Substances 0.000 description 2
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
- D06B9/06—Solvent-treatment of textile materials with recovery of the solvent
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Definitions
- a final drying stage comprises exposing [58] Field of Search 34/23, 26, 12, 28, h fabric to i c l ting hot air at 'a temperature of 34/32, 37; 117/119 8; 8]] G; 26/19 about 80C., and such final drying stage may coincide with or follow the exposure of the fabric to the water [56] References Cited v p UNITED STATES PATENTS 4/1971 Dckoekkoer 117/119.8 X
- chlorinated hydrocarbons for the finishing and processing of textile fabrics, in particular for dyeing, bleaching or cleaning.
- this treatment medium will hereafter be called the solvent.
- the object of the invention is therefore to avoid these defects while providing a method of drying fabric which has been treated with organic solvents, which in simple manner and without affecting the fabric quality gets rid of the solvent content remaining after drying with hot air.
- this object is achieved in that after initial drying by hot air, in the final phase of drying the fabric is brought into contact with water vapour.
- the fabric is preferably dried with hot air until the moisture content produced by the subsequent treatment with water vapour does not appreciably exceed the normal takeup (i.e., the normal moisture capacity) of the fabric.
- This method also avoids the undesired phenomenon usually found with normal hot air drying that the excessively dried fabric needs an appreciable time to recover its normal moisture content (this applies particularly to plant and animal fibres).
- polyamide knitted fabric 50 kg. of polyamide knitted fabric are dyed with 800 litres of a mixture consisting of 98 percent perchlorethylene, 1.5 percent water and 0.5 percent dyestuff and emulsifier.
- the fabric After leaving the bath, the fabric is first spin-dried and then subjected to hot-air drying for a period of 30 minutes in a container of conventional construction. For this purpose, 1,500 cubic metres per hour of air are circulated over the solvent condensation. During this stage the temperature of the air is raised from 20 to C. in 30 minutes.
- vapour valve and the ventilation valve of the container are then opened for 5 minutes, so that the container is filled with water vapour supplied from a convenient source, e.g., the central low pressure water vapour supply.
- a convenient source e.g., the central low pressure water vapour supply.
- the resulting mixture of water vapour, air and solvent passes into a cooler.
- the air circulation is then re-started, and the flow of air through the fabric at a temperature of about 80C. removes the remaining water vapour from the fabric.
- a method of removing a chlorinated hydrocarbon solvent from fabric which has been dyed, bleached, cleaned, or otherwise treated with such solvent comprising initially of circulating hot air through said fabric; subjecting said fabric to water vapour to produce an azeotropic mixture of said water vapour and residual solvent retained by said fabric; and further circulating hot air through said fabric.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
- Treatment Of Fiber Materials (AREA)
- Drying Of Solid Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702051671 DE2051671A1 (de) | 1970-10-21 | 1970-10-21 | Verfahren zum Trocknen von mit chlorierten Kohlenwasserstoffen behan delter Ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3745666A true US3745666A (en) | 1973-07-17 |
Family
ID=5785752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00189798A Expired - Lifetime US3745666A (en) | 1970-10-21 | 1971-10-15 | Drying of fabrics treated with chlorinated hydrocarbons |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3745666A (Direct) |
| JP (1) | JPS517226B1 (Direct) |
| DE (1) | DE2051671A1 (Direct) |
| FR (1) | FR2111619A5 (Direct) |
| GB (1) | GB1362676A (Direct) |
| IT (1) | IT949507B (Direct) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139661A (en) * | 1977-03-09 | 1979-02-13 | Anagnostis Demetrius B | Dewrinkling and permanent crease reforming of garments |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH623447B (de) * | 1978-03-06 | Sandoz Ag | Verfahren zum faerben von acetalisierten pvc/pva-textilien mit dispersionsfarbstoffen. |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3370330A (en) * | 1960-12-23 | 1968-02-27 | Bohler & Weber Kg Fa | Method of milling woolcontaining fabrics |
| US3576661A (en) * | 1969-08-11 | 1971-04-27 | Western Automation Corp | Process and system for dewrinkling garments |
-
1970
- 1970-10-21 DE DE19702051671 patent/DE2051671A1/de active Pending
-
1971
- 1971-10-04 IT IT12963/71A patent/IT949507B/it active
- 1971-10-15 US US00189798A patent/US3745666A/en not_active Expired - Lifetime
- 1971-10-20 FR FR7137715A patent/FR2111619A5/fr not_active Expired
- 1971-10-21 GB GB4887571A patent/GB1362676A/en not_active Expired
- 1971-10-21 JP JP46083632A patent/JPS517226B1/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3370330A (en) * | 1960-12-23 | 1968-02-27 | Bohler & Weber Kg Fa | Method of milling woolcontaining fabrics |
| US3576661A (en) * | 1969-08-11 | 1971-04-27 | Western Automation Corp | Process and system for dewrinkling garments |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139661A (en) * | 1977-03-09 | 1979-02-13 | Anagnostis Demetrius B | Dewrinkling and permanent crease reforming of garments |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1362676A (en) | 1974-08-07 |
| JPS517226B1 (Direct) | 1976-03-05 |
| IT949507B (it) | 1973-06-11 |
| DE2051671A1 (de) | 1972-05-04 |
| FR2111619A5 (Direct) | 1972-06-02 |
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