US3245151A - Method for treating textiles - Google Patents
Method for treating textiles Download PDFInfo
- Publication number
- US3245151A US3245151A US3245151DA US3245151A US 3245151 A US3245151 A US 3245151A US 3245151D A US3245151D A US 3245151DA US 3245151 A US3245151 A US 3245151A
- Authority
- US
- United States
- Prior art keywords
- liquid
- textile material
- substance
- freeze drying
- textile
- 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
- 239000004753 textile Substances 0.000 title claims description 62
- 239000007788 liquid Substances 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 38
- 239000000126 substance Substances 0.000 claims description 30
- 238000004108 freeze drying Methods 0.000 claims description 16
- 238000001035 drying Methods 0.000 description 8
- 238000000859 sublimation Methods 0.000 description 6
- 239000004952 Polyamide Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 239000011528 polyamide (building material) Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004040 coloring Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000009489 vacuum treatment Methods 0.000 description 2
Classifications
-
- 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
- F26B5/06—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 the process involving freezing
-
- 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
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
Definitions
- the invention pertains to a method for treating textiles such as natural or synthetic fibres, threads, yarn-laps, textile fabrics, knitted fabrics.
- the textile product after having been treated with a liquid containing a substance of the mentioned kind, is maintained at such a low temperature and at such a low pressure, for instance 4 Torr down to certain circumstances 0.1 Torr, that the frozen liquid sublimes, the sublimate then being removed.
- the textile product during a part of the treatment is heated by radiation, and at least a part of that heat is supplied which is being lost by the sublimation.
- the textile products may be frozen completely and then be brought into a vacuum, or they may be frozen during the vacuum treatment.
- the liquid when frozen and being removed cannot transport substances which it contains from one spot to another spot within the textile product.
- the vacuum and the temperature to be used depend upon the kind of liquid and on the desired drying time.
- the method steps and the apparatus may in general be the same as used for drying foodstuffs and pharmaceutics by freezing.
- a polyamide yarn which has been treated with a solution of aqueous scrooping agents and which has been spooled on a crossed coil is maintained for four hours in a vacuum container at 10' Torr and at 35 C., while below and above the vertically arranged yarn spool a metal plate is provided at a distance of 2 cm. from the yarn spool, said metal plate being heated to C.
- a method of evenly distributing a finely subdivided substance throughout a textile material comprising the steps of impregnating a textile material with a liquid having said substance in finely subdivided form evenly distributed therethrough; said liquid being adapted to be removed from said textilev material by freeze drying Without thereby affecting said substance; and subjecting the thus impregnated textile material to freeze drying so as to substantially remove said liquid from said textile material, whereby said substance will remain evenly distributed throughout said textile material.
- freeze drying of said impregnated textile material comprises the steps of freezing said impregnated textile material; and maintaining the frozen impregnated textile material at a subatmospheric pressure and a temperature sufficiently low to cause sublimation of the frozen liquid thereof.
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
United States Patent Claims. (o1. 34-5 The invention pertains to a method for treating textiles such as natural or synthetic fibres, threads, yarn-laps, textile fabrics, knitted fabrics.
When distributing substances contained in a liquid in a textile product, for instance when drying a textile product with an aqueous blend of colours, and when later on removing the liquid from the textile product, the distribution of the substance in the textile product changes as the liquid tends to move to the spots already dried thereby transporting the substance from still-wetter spots to already drier spots. Thereby the colouring becomes unregular.
The same problem occurs with substances other than colours, contained in Water or any other liquid for treating textiles, as with synthetic resins, oils, salts and aqueous scrooping agents. The movements of such substances within the textile product could not be prevented so far with the usual drying methods.
The invention will avoid this disadvantage. According to the invention, the textile product, after having been treated with a liquid containing a substance of the mentioned kind, is maintained at such a low temperature and at such a low pressure, for instance 4 Torr down to certain circumstances 0.1 Torr, that the frozen liquid sublimes, the sublimate then being removed.
In a preferred method the textile product during a part of the treatment is heated by radiation, and at least a part of that heat is supplied which is being lost by the sublimation.
The textile products may be frozen completely and then be brought into a vacuum, or they may be frozen during the vacuum treatment.
The liquid when frozen and being removed cannot transport substances which it contains from one spot to another spot within the textile product.
The vacuum and the temperature to be used depend upon the kind of liquid and on the desired drying time. The method steps and the apparatus may in general be the same as used for drying foodstuffs and pharmaceutics by freezing.
For example, a polyamide yarn which has been treated with a solution of aqueous scrooping agents and which has been spooled on a crossed coil is maintained for four hours in a vacuum container at 10' Torr and at 35 C., while below and above the vertically arranged yarn spool a metal plate is provided at a distance of 2 cm. from the yarn spool, said metal plate being heated to C.
I claim:
1. A method of evenly distributing a finely subdivided substance throughout a textile material, comprising the steps of impregnating a textile material with a liquid having said substance in finely subdivided form evenly distributed therethrough; said liquid being adapted to be removed from said textilev material by freeze drying Without thereby affecting said substance; and subjecting the thus impregnated textile material to freeze drying so as to substantially remove said liquid from said textile material, whereby said substance will remain evenly distributed throughout said textile material.
2. A method according to claim 1, wherein said liquid is an aqueous liquid.
3. A method according to claim 1, wherein said liquid is water.
4. A method according to claim 1, wherein said textile material is a polyamide yarn.
5. A method according to claim 2, wherein said freeze drying of said impregnated textile material comprises the steps of freezing said impregnated textile material; and maintaining the frozen impregnated textile material at a subatmospheric pressure and a temperature sufficiently low to cause sublimation of the frozen liquid thereof.
6. A method according to claim 5, wherein said subatmospheric pressure is less than 0.1 Torr.
7. A method according to claim 5, wherein said subatmospheric pressure is less than 0.1 Ton.
8. A method according to claim 5, and including the step of withdrawing the sublimated frozen liquid formed during freeze drying of said impregnated textile material.
9. A method according to claim 5, wherein during freeze drying of said impregnated textile material at least a portion of the heat required for sublimation of said liquid is supplied from an outside source.
10. A method according to claim 9, wherein said heat is supplied in the form of heat radiation during at least part of the time during which said impregnated textile material is subjected to freeze drying.
References Cited by the Examiner UNITED STATES PATENTS 2,668,364 2/1954 Colton 345 3,077,036 2/1963 Neumann 34--5 3,135,589 6/1964 Stokes 345 3,169,049 2/1965 Rey 34-5 3,178,829 4/1965 Cox 34-5 WILLIAM J. WYE, Primary Examiner.
Claims (1)
1. A METHOD OF EVENLY DISTRIBUTING A FINELY SUBDIVIDED SUBSTANCE THROUGHOUT A TEXTILE MATERIAL, COMPRISING THE STEPS OF IMPREGNATING A TEXTILE MATERIAL WITH A LIQUID HAVING SAID SUBSTANCE IN FINELY SUBDIVIDED FORM EVENLY DISTRIBUTED THERETHROUGH; SAID LIQUID BEING ADAPTED TO BE REMOVED FROM SAID TEXTILE MATERIAL BY FREEZE DRYING WITHOUT THEREBY AFFECTING SAID SUBSTANCE; AND SUBJECTING THE THUS IMPREGNATED TEXTILE MATERIAL TO FREEZE DRYING SO AS TO SUBSTANTIALLY REMOVE SAID LIQUID FROM SAID TEXTILE MATERIAL, WHEREBY SAID SUBSTANCE WILL REMAIN EVENLY DISTRIBUTED THROUGHOUT SAID TEXTILE MATERIAL.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3245151A true US3245151A (en) | 1966-04-12 |
Family
ID=3458101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US3245151D Expired - Lifetime US3245151A (en) | Method for treating textiles |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3245151A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3403046A (en) * | 1965-10-08 | 1968-09-24 | Interchem Corp | Method of forming a water vapor permeable film and coating on a substrate |
| US3704716A (en) * | 1969-12-15 | 1972-12-05 | Fmc Corp | Method for continuous preparation of tobacco |
| US3785385A (en) * | 1968-02-21 | 1974-01-15 | Research Corp | Tobacco treatment to increase volume thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2668364A (en) * | 1950-10-27 | 1954-02-09 | Dry Freeze Corp | Drying of materials by infrared radiation |
| US3077036A (en) * | 1959-01-10 | 1963-02-12 | Leybold Hochvakuum Anlagen | Temperature responsive freeze drying method and apparatus |
| US3135589A (en) * | 1961-09-29 | 1964-06-02 | Pennsalt Chemicals Corp | Drying apparatus |
| US3169049A (en) * | 1960-12-01 | 1965-02-09 | Leybold Anlagen Holding A G | Control device for vacuum freeze drying systems |
| US3178829A (en) * | 1962-05-25 | 1965-04-20 | J P Devine Mfg Company | Process and apparatus for freeze dehydrating of food material |
-
0
- US US3245151D patent/US3245151A/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2668364A (en) * | 1950-10-27 | 1954-02-09 | Dry Freeze Corp | Drying of materials by infrared radiation |
| US3077036A (en) * | 1959-01-10 | 1963-02-12 | Leybold Hochvakuum Anlagen | Temperature responsive freeze drying method and apparatus |
| US3169049A (en) * | 1960-12-01 | 1965-02-09 | Leybold Anlagen Holding A G | Control device for vacuum freeze drying systems |
| US3135589A (en) * | 1961-09-29 | 1964-06-02 | Pennsalt Chemicals Corp | Drying apparatus |
| US3178829A (en) * | 1962-05-25 | 1965-04-20 | J P Devine Mfg Company | Process and apparatus for freeze dehydrating of food material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3403046A (en) * | 1965-10-08 | 1968-09-24 | Interchem Corp | Method of forming a water vapor permeable film and coating on a substrate |
| US3785385A (en) * | 1968-02-21 | 1974-01-15 | Research Corp | Tobacco treatment to increase volume thereof |
| US3704716A (en) * | 1969-12-15 | 1972-12-05 | Fmc Corp | Method for continuous preparation of tobacco |
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