US1738190A - Process for improving cotton - Google Patents
Process for improving cotton Download PDFInfo
- Publication number
- US1738190A US1738190A US165749A US16574927A US1738190A US 1738190 A US1738190 A US 1738190A US 165749 A US165749 A US 165749A US 16574927 A US16574927 A US 16574927A US 1738190 A US1738190 A US 1738190A
- Authority
- US
- United States
- Prior art keywords
- cotton
- alkali
- carbon
- carbon bisulphide
- treated
- 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
- 229920000742 Cotton Polymers 0.000 title description 32
- 238000000034 method Methods 0.000 title description 21
- 241000219146 Gossypium Species 0.000 description 32
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 25
- 239000003513 alkali Substances 0.000 description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 14
- 239000003518 caustics Substances 0.000 description 12
- 239000004744 fabric Substances 0.000 description 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 230000005484 gravity Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000001117 sulphuric acid Substances 0.000 description 6
- 235000011149 sulphuric acid Nutrition 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- VQLYBLABXAHUDN-UHFFFAOYSA-N bis(4-fluorophenyl)-methyl-(1,2,4-triazol-1-ylmethyl)silane;methyl n-(1h-benzimidazol-2-yl)carbamate Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1.C=1C=C(F)C=CC=1[Si](C=1C=CC(F)=CC=1)(C)CN1C=NC=N1 VQLYBLABXAHUDN-UHFFFAOYSA-N 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- -1 petrol Substances 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229960004643 cupric oxide Drugs 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000009896 oxidative bleaching Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000009895 reductive bleaching Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
- D06M11/64—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
-
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
-
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/155—Halides of elements of Groups 2 or 12 of the Periodic Table
-
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
- D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
-
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
- D06M11/59—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with ammonia; with complexes of organic amines with inorganic substances
- D06M11/62—Complexes of metal oxides or complexes of metal salts with ammonia or with organic amines
-
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
- D06M11/70—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with oxides of phosphorus; with hypophosphorous, phosphorous or phosphoric acids or their salts
-
- 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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/75—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with phosgene; with compounds containing both carbon and sulfur, e.g. thiophosgene
Definitions
- llhere are known processes of treating vegetable fibrous materials, such as cotton fabric and the like, with alkali and carbon bisulphide, partly in order to convert these materials into a parchment-like product, partly to provide them with a durable dressing.
- hese processes consist in treating the fibrous materials, particularly fabrics, with strong alkali solution and them subjecting them to m the action of carbon bisulphide in vapour form, or in treating the material first with concentrated alkali solution, then with carbon-bisulphide and finally mercerizing under tension.
- the cotton may be treated according to the invention in the form of fabric, of yarns, in hanks or in the form of cops or warps.
- the cotton or the material consisting'of or containing cotton may be treated by the present process raw or after preliminary treatment .(for example boiled, 'wetted or not wetted, unbleached or bleached with oxidizing or reducing bleaching agents, mercerized or not mercerized).
- hydrolyzing or gelatinizing agent for example a strong mineral acid, such as sulphuric acid of 49-60 Baum specific gravity or phosphoric acid of 5.557 Baum or higher specific gravity, or hydrochloric acid of 24 Baum specific gravity, or nitric acid of 43-46 Baum or higher specific gravity, or hot solution of zinc chloride of 60 Baum specific gravity or an ammoniacal solution 60 of cupric oxide of considerable concentration.
- a strong mineral acid such as sulphuric acid of 49-60 Baum specific gravity or phosphoric acid of 5.557 Baum or higher specific gravity, or hydrochloric acid of 24 Baum specific gravity, or nitric acid of 43-46 Baum or higher specific gravity
- hot solution of zinc chloride of 60 Baum specific gravity or an ammoniacal solution 60 of cupric oxide of considerable concentration for example a strong mineral acid, such as sulphuric acid of 49-60 Baum specific gravity or phosphoric acid of 5.557 Baum or higher specific gravity, or hydrochloric acid of 24 Baum specific gravity, or nitric acid of 43-46 Baum or higher
- Mixed goods that is to say, goods composed of vegetable and animal fibres, may also be subjected to the present process.
- Bleached or unbleached mercerized or unmercerized cotton fabric is treated under tension with carbon bisulphide undiluted or diluted with'benzene (for example 1-5 parts of benzene to 1 part of carbon bisulphide) for some seconds up to .a quarter of an hour. Then, where desired after squeezing outthe excess carbon bisulphide,the fabric is treated as with caustic soda solution of 14-20 per cent strength for some minutes up to several hours.
- Cotton fabric under tension is introduced into a mixture of caustic soda solution of 10-1 p ent t g w h L -3, per .00
- the mode of operation is as in the foregoing examples, except that before being subjected to the present processthe fabric is previously treated with a strong sulphuric acid. If a sulphuric acid of 4950 Baum specific gravity is used for this purpose, the treatment therewith, at room temperature, may be continued for a few seconds up to some minutes or even longer. If a stronger sulphuric acid is used, for example one of 52-54: Baum specific gravity, the treatment is to occupy only a few seconds, if the sulphuric acid is of room temperature. If thesulphuric acid is cooled to 0 C. or lower, the treatment may be longer.
- a strong sulphuric acid for this purpose, the treatment therewith, at room temperature, may be continued for a few seconds up to some minutes or even longer. If a stronger sulphuric acid is used, for example one of 52-54: Baum specific gravity, the treatment is to occupy only a few seconds, if the sulphuric acid is of room temperature. If the
- the treatment with sulphuric acid may be preceded by a mercerizing of the fabric, for example with caustic soda solution of 10 per cent strength at low temperatures or with a strong caustic soda solution, for example of 18-40 per cent strength at room temperature.
- the cotton fabric treated in accordance with the present process may, of course, be washed'or acidified and washed and dried in the usual way.. It may also be dried or steamed before washing.
- cotton in the following claims comprises cotton in the form of pure cotton alkali cellulose, simultaneously with caustic alkali solution and carbon bisulphide.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
Description
tilt) Patented Dec. 3,1929- UNITED STATES LEON LILIENFELD, F VIENNA, AUSTRIA- PROCESS FOR IMPROVING COTTON No Drawing. Application filed February 3, 1927,
llhere are known processes of treating vegetable fibrous materials, such as cotton fabric and the like, with alkali and carbon bisulphide, partly in order to convert these materials into a parchment-like product, partly to provide them with a durable dressing. hese processes consist in treating the fibrous materials, particularly fabrics, with strong alkali solution and them subjecting them to m the action of carbon bisulphide in vapour form, or in treating the material first with concentrated alkali solution, then with carbon-bisulphide and finally mercerizing under tension.
According to my invention very valuable properties are imparted to cotton in hank or fabric form when, without previously converting it into alkali-cellulose, it is treated simultaneously with alkali solution and carno bon bisulphide, undiluted or diluted ,with suitable diluents (for example, benzene, chloroform, petrol, petroleum ether, ligroin, carbon tetrachloride or the like). This may be done either by impregnating the cotton or the material consisting of or containing cotton with diluted or undiluted carbon bisulphide and then similarly treating with alkali solution or by subjecting the cotton material to the action of alkali solution to which carbon bisulphide is added before or "after the introduction of the cot-ton.
According to the particular nature of the cotton material and the duration of the action of the carbon bisulphide in presence of alkali solution, there are obtained according to the present process either highly-translucent effects with a very silky lustre, or a more or less stiffening finishing or both. Woollike appearance and" feel may also be given the material treated according to the process,
The cotton may be treated according to the invention in the form of fabric, of yarns, in hanks or in the form of cops or warps.
The cotton or the material consisting'of or containing cotton, may be treated by the present process raw or after preliminary treatment .(for example boiled, 'wetted or not wetted, unbleached or bleached with oxidizing or reducing bleaching agents, mercerized or not mercerized).
Serial No. 165,749, and in Austria May 23, 1923.
It may also be treated previously with a hydrolyzing or gelatinizing agent, for example a strong mineral acid, such as sulphuric acid of 49-60 Baum specific gravity or phosphoric acid of 5.557 Baum or higher specific gravity, or hydrochloric acid of 24 Baum specific gravity, or nitric acid of 43-46 Baum or higher specific gravity, or hot solution of zinc chloride of 60 Baum specific gravity or an ammoniacal solution 60 of cupric oxide of considerable concentration.
By. reserving certain portions in accordance with known methods (for example by the application of substances adapted for this purpose, such as albumimgum, acids and the like) pattern effects may be obtained by the present process.
Mixed goods, that is to say, goods composed of vegetable and animal fibres, may also be subjected to the present process.
By suitable selection of the operating con- 'ditions there may be obtained in accordance with the present process silky effects surpassing those obtained by the usual mercerizlng methods, as well as wool-like or springy of fects.
To obtain the silky lustre, stretching of the goods is essential. It is immaterlal 'whether the tension isapplied before or after the treatment with alkali solution in presence 30 of carbon bisulphide. When the stretching of the goods is omitted the silky lustre effects disappearand the goods assume a springy conditionand resemble wool to a very marked degree.
The followingexam'ples illustrate the invention:
1. Bleached or unbleached mercerized or unmercerized cotton fabric is treated under tension with carbon bisulphide undiluted or diluted with'benzene (for example 1-5 parts of benzene to 1 part of carbon bisulphide) for some seconds up to .a quarter of an hour. Then, where desired after squeezing outthe excess carbon bisulphide,the fabric is treated as with caustic soda solution of 14-20 per cent strength for some minutes up to several hours.
2. Cotton fabric under tension is introduced into a mixture of caustic soda solution of 10-1 p ent t g w h L -3, per .00
cent of carbon bisulphideand treated with this mixture for some minutes up to several hours.
3. The mode of operation is as in the foregoing examples, except that before being subjected to the present processthe fabric is previously treated with a strong sulphuric acid. If a sulphuric acid of 4950 Baum specific gravity is used for this purpose, the treatment therewith, at room temperature, may be continued for a few seconds up to some minutes or even longer. If a stronger sulphuric acid is used, for example one of 52-54: Baum specific gravity, the treatment is to occupy only a few seconds, if the sulphuric acid is of room temperature. If thesulphuric acid is cooled to 0 C. or lower, the treatment may be longer.
The treatment with sulphuric acid may be preceded by a mercerizing of the fabric, for example with caustic soda solution of 10 per cent strength at low temperatures or with a strong caustic soda solution, for example of 18-40 per cent strength at room temperature.
In order to bringv about the production of the wool-like effects or wooly appearanceof the goods treated, it only becomes necessary to omit what was said above to .be essential to the production of the silky efi'ects, namely the treatment of the goods under tension or in the stretched condition. Therefore, if the wool-like appearance or springy condition of the goods treated is desired, it may be produced sim ly by omitting the stretching or tension re erred to in the above specific examples.
The cotton fabric treated in accordance with the present process may, of course, be washed'or acidified and washed and dried in the usual way.. It may also be dried or steamed before washing.
All the secondary ope-rations usual in mer--.
cerizing or proposed therefor may be applied to the present process, for example lustering, printing, etc. V v The finished fabrics may, if desired, be calendered, schreinered, beatled or the like. 7 The term cotton in the following claims comprises cotton in the form of pure cotton alkali cellulose, simultaneously with caustic alkali solution and carbon bisulphide.
2. The process of imparting wool-like effe'cts to cotton by treating with caustic alkali and carbon bisulphide which comprises treating cotton in a substantially unstretched or free from tension condition first with carbon bisulphide and then with caustic alkali solution.
3. The process of imparting wool-like effects to cotton by treating with caustic alkali and carbon bisulphide which comprises reacting upon cotton in a substantially unstretched condition with a mixture of caustic alkali solution and carbon bisulphide.
4. The process of producingwool-like effects in cotton goods which comprises subjecting cotton goods to the simultaneous action of carbon bisulphide and a hydroxide of an alkali metal while maintaining the cotton goods during such action in a substantia-lly unstretched condition or in a state substantially free from tension.
5. The process of imparting wool-like eifects to cotton .by treatment with alkali and carbon disulphide which comprises reacting simultaneously on cotton in a substantially unstret'ched or free from tension condition with caustic alkali and carbon disulphide.
6. The process of imparting wool-like efiectsto cotton by treatment with caustic alkali and carbon bisulphide which comprises ,treating cotton in a substantially unstretched,
or free from tension condition, and while substantially free from previousl formed alkali cellulose, first with carbon bisulphide and then with aqueous caustic alkali solution.
7. The process of imparting wool-like effects to cotton by treatment with caustic alkali and carbon bisulphide which comprises subjecting the cotton in a substantially unstretched or free from tension condition, and while substantially free from previously formed alkali cellulose, to the action of a mixture of carbon bisulphide and aqueous caustic alkali.
In testimony whereof I aflix my signature.
LEON LILIENFELD.
or mixed fabrics, ofyar'ns for example in 5 hanks or cops or warps.
The expression"mercerizing agent? in the following claims comprises alkali lye or strong mineral acids.
This application is in part a continuation of my application Serial No. 712,473, filed May 10, 1924.
I claim: y
1. The process of imparting wool-like effects to cotton by treatment with caustic alkali and carbon bisulphide, which comprises treating cotton in a substantially unstretched or free from tension condition, without previous conversion 1nto caustic
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT216476X | 1923-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1738190A true US1738190A (en) | 1929-12-03 |
Family
ID=3669770
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US712474A Expired - Lifetime US1736713A (en) | 1923-05-23 | 1924-05-10 | Process of improving cotton |
| US712473A Expired - Lifetime US1736712A (en) | 1923-05-23 | 1924-05-10 | Process for improving cotton |
| US165749A Expired - Lifetime US1738190A (en) | 1923-05-23 | 1927-02-03 | Process for improving cotton |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US712474A Expired - Lifetime US1736713A (en) | 1923-05-23 | 1924-05-10 | Process of improving cotton |
| US712473A Expired - Lifetime US1736712A (en) | 1923-05-23 | 1924-05-10 | Process for improving cotton |
Country Status (3)
| Country | Link |
|---|---|
| US (3) | US1736713A (en) |
| DE (2) | DE425330C (en) |
| GB (2) | GB216476A (en) |
-
1923
- 1923-07-19 GB GB18666/23A patent/GB216476A/en not_active Expired
- 1923-07-24 GB GB19028/23A patent/GB216477A/en not_active Expired
-
1924
- 1924-05-03 DE DEL60110D patent/DE425330C/en not_active Expired
- 1924-05-03 DE DEL60111D patent/DE567980C/en not_active Expired
- 1924-05-10 US US712474A patent/US1736713A/en not_active Expired - Lifetime
- 1924-05-10 US US712473A patent/US1736712A/en not_active Expired - Lifetime
-
1927
- 1927-02-03 US US165749A patent/US1738190A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB216477A (en) | 1924-11-24 |
| US1736713A (en) | 1929-11-19 |
| DE425330C (en) | 1926-02-18 |
| US1736712A (en) | 1929-11-19 |
| DE567980C (en) | 1933-01-12 |
| GB216476A (en) | 1924-11-19 |
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