US3915631A - Processes to make olive drab to greenish-gold mineral dye shades for cellulosics - Google Patents
Processes to make olive drab to greenish-gold mineral dye shades for cellulosics Download PDFInfo
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- US3915631A US3915631A US374585A US37458573A US3915631A US 3915631 A US3915631 A US 3915631A US 374585 A US374585 A US 374585A US 37458573 A US37458573 A US 37458573A US 3915631 A US3915631 A US 3915631A
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- greenish
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- textile
- gold
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- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 25
- 239000011707 mineral Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000010931 gold Substances 0.000 title claims abstract description 19
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 19
- 240000007817 Olea europaea Species 0.000 title claims abstract description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 30
- 239000004753 textile Substances 0.000 claims abstract description 23
- 235000010755 mineral Nutrition 0.000 claims abstract description 22
- 239000000243 solution Substances 0.000 claims abstract description 22
- 229960000359 chromic chloride Drugs 0.000 claims abstract description 16
- LJAOOBNHPFKCDR-UHFFFAOYSA-K chromium(3+) trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Cr+3] LJAOOBNHPFKCDR-UHFFFAOYSA-K 0.000 claims abstract description 16
- 239000011636 chromium(III) chloride Substances 0.000 claims abstract description 16
- 235000007831 chromium(III) chloride Nutrition 0.000 claims abstract description 16
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 12
- 239000007864 aqueous solution Substances 0.000 claims abstract description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 6
- 238000004043 dyeing Methods 0.000 claims description 16
- 239000011790 ferrous sulphate Substances 0.000 claims description 16
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 16
- 239000003513 alkali Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical class [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 7
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000004744 fabric Substances 0.000 description 6
- 241000272525 Anas platyrhynchos Species 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 235000017550 sodium carbonate Nutrition 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 150000004688 heptahydrates Chemical class 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- RVUXIPACAZKWHU-UHFFFAOYSA-N sulfuric acid;heptahydrate Chemical compound O.O.O.O.O.O.O.OS(O)(=O)=O RVUXIPACAZKWHU-UHFFFAOYSA-N 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
Classifications
-
- 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
- D06P1/0076—Dyeing with mineral dye
-
- 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
- D06M11/71—Salts of phosphoric acids
-
- 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
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
-
- 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
- Y10S8/916—Natural fiber dyeing
- Y10S8/918—Cellulose textile
Definitions
- the present invention consists of treating an aqueous solution of chromic chloride with ferrous salt. (sulphate), to produce an aqueous bath of chromic chloride and ferrous 120-130C, the intimate chromic chloride andferro us sulphate salts are deposited and 'dried in the cellulosic, producing a .pure dark green" 150-155C for 2 to 3 minutes. At the end of this time, the color changes from pure green" to a golden" or yellow-brown shade. Heating in contact with the excess alkali produces this change at about 150C. The dyed cellulosic is then hot water washed to remove soluble matter, and dried at 130150C for 2 to 3 minutes. The mineral dyeingis uniform and colored in the 'olive drab to greenish-gold" range, dependingion the ratio of ferrous salt to'chromiumin the first bath.
- ferrous salt. sulphate
- the main objectof the invention is to provide a unique'process'fordyeing olive drab to greenish-gold mineral dye shades on cellulosics, using low costchemicals and conventional mill equipment, to produce highly desirable attractive mineral dye color shades.
- a second object of the invention is to use conventional chromic chloride, familiar to most textile finishers, inexpensive and readily available ferrous sulphate, and alkali chemicals which are inexpensive and coriventionally used in textile mills, for the'development of dye shades of very attractive appearance from inexpensive materials, capable of being finished with hydrophobic wax water repellents, as with other conventional mineral dyeings.
- Utility of the invention is obviously in the field of mineral dyeings and weatherable goods, such as pigmented (dyed) cellulosics for tents, sails, tarpaulins, umbrellas, awnings, ropes, shoe linings, boat covers, canvas shoes,'upholstery, etc.
- mineral dyeings and weatherable goods such as pigmented (dyed) cellulosics for tents, sails, tarpaulins, umbrellas, awnings, ropes, shoe linings, boat covers, canvas shoes,'upholstery, etc.
- This invention can best be described as one disclosing specific inorganic chemical formulations and a process for imparting to cellulosic textiles durable greenish-yellow (golden) to olive drabcoloration through mineral dyeing, theprocess comprising impregnating a cellulosic textile with an aqueous solution containing ferrous sulphate and liquid 89% Cr chromic chloride solution, wherein the ferrous sulphate is about 1.5% to 2.95% of the solution and the chromic chloride content is about from 78% to 79%; drying the wet impregnated textile at about from to C for about 2 to 3 minutes; impregnating the textile again, with an aqueous alkali solution containing about 5% to 15% of sodium hydroxide and about from 5% to 25% sodium carbonate; drying-curing the wet impregnated textile at about from to C for about 2 to 3 minutes to develop the color; and hot water-washing at a temperature of about 55C for about from 2 to 3 minutes to re-
- EXAMPLE 3 Demonstration To Show That The Alkali Must Be Present in Curing After Double Decomposition Baths A and B were prepared as in Example 1.
- the scoured duck fabric was wetted, squeezed, and oven dried at 120-l 30C with Bath A.
- the fabric was then wetted thoroughly in Bath B, squeezed, and washed free of alkali and salts with hot tap waterf
- the fabric was dyed a grayish-green. It was then oven dried for 2 to 3 minutes at l30150C.
- a grayish-green mineral dyeing resulted, without the yellowish-green color of '5 Olive Drab, showing that cure without contact with free alkali did not produce the necessary conversion to "Olive Drab.
- EXAMPLE 6 0.25 gm. Ferrous SulphateGreen mineral dyeing 0.50 gm. Ferrous SulphateBright mediumgreen 0.80 gm. Ferrous Sulphate0live Drab shade 1.00 gm. Ferrous Sulphate-Greenish-Gold dye shade 1.50 gm. Ferrous Sulphate-Brown(greenish) dye shade v in Bath A, (of Example 6), all other components (other than Ferrous Sulphate remain constant, per Example 1. Applications were made with 9 oz. scoured cotton army duck in each evaluation.
- a process for imparting to cellulosic textiles durable greenish-yellow (golden) to olive drab coloration through mineral dyeing comprising impregnating a cellulosic textile with an aqueous solution containing ferrous sulphate and liquid 89% Cr chromic chloride solution, wherein the ferrous sulphate is about 1.5% to 2.95% of the solution and the chromic chloride solution content is about from 78% to 79%;
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
Olive drab to greenish-gold mineral dye shades are imparted to cellulosic textiles by a two-solution aqueous process wherein critical proportions of ferrous salts and chromic chloride are mixed in a first aqueous solution, applied to the textile and dried, then a mixture of sodium hydroxide and sodium carbonate are applied in a second aqueous solution, and the color developed upon the drying-curing step. The coloration is controllably olive drab when the ferrous salt content is low and controllably greenish-gold when the ferrous salt content is high.
Description
United States Patent 11 1 Conner Oct. 28, 1975 PROCESSES TO MAKE OLIVE DRAB TO GREENISH-GOLD MINERAL DYE SHADES FOR CELLULOSICS [75] Inventor: .Charles J. Conner, Matairie, La.
[73] Assignee: The United States of America as represented by the Secretary of Agriculture, Washington, DC.
[22] Filed: June 28, 1973 [21] Appl. No.: 374,585
[52] US. Cl. 8/52; 8/542; 252/8.6 [51] Int. Cl. C09B 61/100; DO6P 1/00;
DO6P 3/60; DO6M 00/00 [58] Field of Search 8/52; 252/8.6
[56] References Cited UNITED STATES PATENTS 10/1928 white"; 8/52 8/1937 White 8/52 2/l960 Crosland 8/52 2/1974 Conner i. 8/52 Primary ExaminerBenjamin R. Padgett Assistant Examiner-Donald P. Walsh Attorney, Agent, or F irm--M. Howard Silverstein; Max D. Hensley [5 7] ABSTRACT Olive drab to greenish-gold mineral dye shades are im- 4 Claims, N0 Drawings 1 PROCESSES TO MAKE OLIVE DRAB TO GREENISH-GOLD MINERAL DYE SHADES FOR CELLULOSICS I The prior art shows that mineral colors are produced by treating cellulosics with metal salts in aqueous solution, followed by treatment withan alkali to produce the metal hydroxide or hydrated oxide in the cellulosic (as pigment), resulting in colored-mineral dyeings.
These colors are simple double decomposition" reaction products, andare well known in the trade. However, when a ferrous salt is incorporated into a chromic chloride solution, the ferrous salt is capable of producing basic ferroso-ferric hydrated oxides through partial oxidation and heating with excess concentrated alkalis. Since our processing can be demonstrated to be a series of reactions, over and above simple double decomposition, it is unique and novel in the field of mineral dyeings, offering several new and attractive color shades for stable textile-mineral dyeing.
The present invention consists of treating an aqueous solution of chromic chloride with ferrous salt. (sulphate), to produce an aqueous bath of chromic chloride and ferrous 120-130C, the intimate chromic chloride andferro us sulphate salts are deposited and 'dried in the cellulosic, producing a .pure dark green" 150-155C for 2 to 3 minutes. At the end of this time, the color changes from pure green" to a golden" or yellow-brown shade. Heating in contact with the excess alkali produces this change at about 150C. The dyed cellulosic is then hot water washed to remove soluble matter, and dried at 130150C for 2 to 3 minutes. The mineral dyeingis uniform and colored in the 'olive drab to greenish-gold" range, dependingion the ratio of ferrous salt to'chromiumin the first bath.
The main objectof the inventionis to provide a unique'process'fordyeing olive drab to greenish-gold mineral dye shades on cellulosics, using low costchemicals and conventional mill equipment, to produce highly desirable attractive mineral dye color shades.
A second object of the invention is to use conventional chromic chloride, familiar to most textile finishers, inexpensive and readily available ferrous sulphate, and alkali chemicals which are inexpensive and coriventionally used in textile mills, for the'development of dye shades of very attractive appearance from inexpensive materials, capable of being finished with hydrophobic wax water repellents, as with other conventional mineral dyeings.
Utility of the invention is obviously in the field of mineral dyeings and weatherable goods, such as pigmented (dyed) cellulosics for tents, sails, tarpaulins, umbrellas, awnings, ropes, shoe linings, boat covers, canvas shoes,'upholstery, etc.
SUMMARY This invention can best be described as one disclosing specific inorganic chemical formulations and a process for imparting to cellulosic textiles durable greenish-yellow (golden) to olive drabcoloration through mineral dyeing, theprocess comprising impregnating a cellulosic textile with an aqueous solution containing ferrous sulphate and liquid 89% Cr chromic chloride solution, wherein the ferrous sulphate is about 1.5% to 2.95% of the solution and the chromic chloride content is about from 78% to 79%; drying the wet impregnated textile at about from to C for about 2 to 3 minutes; impregnating the textile again, with an aqueous alkali solution containing about 5% to 15% of sodium hydroxide and about from 5% to 25% sodium carbonate; drying-curing the wet impregnated textile at about from to C for about 2 to 3 minutes to develop the color; and hot water-washing at a temperature of about 55C for about from 2 to 3 minutes to re- EXAMPLE 1 (Bath) Olive Drab Mineral Dyeing Procedure For i Scoured Cotton Duck 1 l BATH A 40.0 grams Chromic Chloride Solution (8%9% Chromium Metal Content)* 10.0 grams Water (distilled or soft) 0.8 gram Ferrous sulphate (heptahydrate) crystals 50.8 grams Bath A (For Olive Drab Dye Shade) BATH B 5.0 grams Sodium Hydroxide Pellets (Caustic Soda) 15.0 grams Soda Ash (Sodium Carbonate) Anhydrous 80.0 grams Water (distilled or soft) 100.0 grams Bath B (Alkali) Industrial chromic chloride is supplied as a liquid with 8% to 9% chromium metal content. 40 grains of. this liquid in a 50.8 gram Bath (A) 78.7% of Bath (A).
EXAMPLE 2 Procedure for ,Olive Drab Mineral Dyeing Procedure on CottonScoured Duck A 2X4 inch section of scoured cotton 9'02. duck was wetted thoroughly in Bath A', the excess squeezed out through rollers, and the wet fabric heated in the oven at 120-130C for 2to 3 minutes, until the dry treated fabric was pure-dark green." The'dry fabric was then immersed and thoroughly wetted with Bath B,
EXAMPLE 3 Demonstration To Show That The Alkali Must Be Present in Curing After Double Decomposition Baths A and B were prepared as in Example 1. The scoured duck fabric was wetted, squeezed, and oven dried at 120-l 30C with Bath A. The fabric was then wetted thoroughly in Bath B, squeezed, and washed free of alkali and salts with hot tap waterfThe fabric was dyed a grayish-green. It was then oven dried for 2 to 3 minutes at l30150C. A grayish-green mineral dyeing resulted, without the yellowish-green color of '5 Olive Drab, showing that cure without contact with free alkali did not produce the necessary conversion to "Olive Drab.
EXAMPLE 4 (Bath) Greenish-Gold Mineral Dyeing Procedure For Scoured Duck BATH A 40.0 grams Chromic Chloride Solution (8%-9% chromium metal content)* 10.0 grams Water (Distilled or soft) 1.0 gram Ferrous Sulphate (heptahydrate crystals) 51.0 grams Bath A (Greenish-Gold) BATH B 5.0 grams Sodium Hydroxide Pellets (Caustic Soda) 15.0 grams Soda Ash (Sodium Carbonate) Anhydrous 80.0 grams Water (Distilled or soft) 100.0 grams Bath B (Greenish-Gold) Alkali (Note: Both baths should be uniform, clear, solutions) Industrial chromic chloride is supplied as a liquid with 8% to 9% chromium metal content. 40 grams of this liquid in a 51.0 gram Bath (A) 78% of Bath (A).
EXAMPLE Procedure for Greenish-Gold Mineral Dyeing on Scoured Duck A 3X4 inch piece of scoured 9 oz. duck was treated with Bath A according to procedure in Example 2, followed by treatment with Bath B according to procedure in Example 2. Oven heating and washing and drying procedures were the same as in Example 2. A uniform greenish-gold mineral dyeing resulted.
EXAMPLE 6 0.25 gm. Ferrous SulphateGreen mineral dyeing 0.50 gm. Ferrous SulphateBright mediumgreen 0.80 gm. Ferrous Sulphate0live Drab shade 1.00 gm. Ferrous Sulphate-Greenish-Gold dye shade 1.50 gm. Ferrous Sulphate-Brown(greenish) dye shade v in Bath A, (of Example 6), all other components (other than Ferrous Sulphate remain constant, per Example 1. Applications were made with 9 oz. scoured cotton army duck in each evaluation.
'1" With 5 gms. NaOH and 5 gms. Na CO the water content is q g' f With 15 gms. NaOH and 25 gms. C Bath (B) Na cQa, the water content is 60% EXAMPLE 7 EXAMPLE 8 Dyed swatches of both olive drab and greenish gold were exposed v to outdoor weathering on wooden frames. After one month, no evidence of color change was noted, and the mineral dyeings were stable to sunlight and weathering.
I claim:
1. A process for imparting to cellulosic textiles durable greenish-yellow (golden) to olive drab coloration through mineral dyeing, the process comprising impregnating a cellulosic textile with an aqueous solution containing ferrous sulphate and liquid 89% Cr chromic chloride solution, wherein the ferrous sulphate is about 1.5% to 2.95% of the solution and the chromic chloride solution content is about from 78% to 79%;
drying the wet impregnated textile at about from to C for about 2to 3 minutes; impregnating the textile again, with an aqueous alkali solution containing about 5% to 15% of sodium hydroxide and about from 5% to 25% sodium carbonate; drying-curing the wet impregnated textile at about from to C for about 2 to 3 minutes to develop the color; and hot water-washing at a temperature of about 55C for about from 2 to 3 minutes to remove residual alkalies; and drying at temperatures about from 130 to 150C for about 2 to 3 minutes.
2. The process of claim 1 wherein the ferrous sulphate in the first solution is about 1.50% to yield a cellulosic textile with an olive drab coloration.
3. The process of claim 1 wherein the ferrous sulphate in the first solution is about 1.96% to yield a cellulosic textile with a greenish-gold coloration.
4. The process of claim 1 wherein the ferrous sulphate in the first solution is about 2.95% to yield a brownish shade of greenish-gold.
Claims (4)
1. A PROCESS FOR IMPARTING TO CELLOUSIC TEXTILES DURABLE GREENISH-YELLOW (GOLDEN) TO OLIVE DRAB COLORATION THROUGH MINERAL DYEING, THE PROCESSED COMPRISING IMPREGNATING A CELLULOSIC TEXTILE WITH AN AQUEOUS SOLUTION CONTAINING FERROUS SULPHATE AND LIQUID 8-9% CR CHROMIC CHLORIDE SOLUTION, WHEREIN THE FERROUS SULPHATE IS ABOUT 1.5% TO 2.95% OF THE SOLUTION AND THE CHROMIC CHLORIDE SOLUTION CONTENT IS ABOUT FROM 78% TO 79%, DRYING THE WET IMPREGNATED TEXTILE AT ABOUT FROM 120* TO 130*C FOR ABOUT 2 TO 3 MINUTES, IMPREGNATING THE TEXTILE AGAIN, WITH AN AQUEOUS ALKALI SOLUTION CONTAINING ABOUT 5% TO 15% OF SODIUM HYDROXIDE AND ABOUT FROM 5% TO 25% SODIUM CARBONATE, DRYING-CURING THE WET IMPREGNATED TEXTILE AT ABOUT FROM 150* TO 155*C FOR ABOUT 2 TO 3 MINUTES TO DEVELOP THE COLOR, AND HOT WATER-WASHING AT A TEMPERATURE OF ABOUT 55*C FOR ABOUT FROM 2 TO 3 MINUTES TO REMOVE RESIDUAL ALKALIES, AND DRYING AT TEMPERATURES ABOUT FROM 130* TO 150*C FOR ABOUT 2 TO 3 MINUTES.
2. The process of claim 1 wherein the ferrous sulphate in the first solution is about 1.50% to yield a cellulosic textile with an olive drab coloration.
3. The process of claim 1 wherein the ferrous sulphate in the first solution is about 1.96% to yield a cellulosic textile with a greenish-gold coloration.
4. The process of claim 1 wherein the ferrous sulphate in the first solution is about 2.95% to yield a brownish shade of greenish-gold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US374585A US3915631A (en) | 1973-06-28 | 1973-06-28 | Processes to make olive drab to greenish-gold mineral dye shades for cellulosics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US374585A US3915631A (en) | 1973-06-28 | 1973-06-28 | Processes to make olive drab to greenish-gold mineral dye shades for cellulosics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3915631A true US3915631A (en) | 1975-10-28 |
Family
ID=23477462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US374585A Expired - Lifetime US3915631A (en) | 1973-06-28 | 1973-06-28 | Processes to make olive drab to greenish-gold mineral dye shades for cellulosics |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3915631A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4445902A (en) * | 1983-05-04 | 1984-05-01 | The United States Of America As Represented By The Secretary Of Agriculture | Vapor process for mineral dyeing cellulosic fabrics |
| US4752297A (en) * | 1987-02-26 | 1988-06-21 | Osmose Wood Preserving, Inc. | Process for coloring wood with iron salt in water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1686540A (en) * | 1926-12-23 | 1928-10-09 | Vivatex Processes Inc | Mineral dyeing |
| US2091539A (en) * | 1935-01-14 | 1937-08-31 | Clarence B White | Mineral dye and method of making same |
| US2923592A (en) * | 1954-12-01 | 1960-02-02 | Crosland Percy Field | Processes of dyeing cellulosic materials with inorganic metallic compounds |
| US3794466A (en) * | 1972-04-27 | 1974-02-26 | Us Agriculture | Single bath chromic chloride mineral dyeing process for cellulosics |
-
1973
- 1973-06-28 US US374585A patent/US3915631A/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1686540A (en) * | 1926-12-23 | 1928-10-09 | Vivatex Processes Inc | Mineral dyeing |
| US2091539A (en) * | 1935-01-14 | 1937-08-31 | Clarence B White | Mineral dye and method of making same |
| US2923592A (en) * | 1954-12-01 | 1960-02-02 | Crosland Percy Field | Processes of dyeing cellulosic materials with inorganic metallic compounds |
| US3794466A (en) * | 1972-04-27 | 1974-02-26 | Us Agriculture | Single bath chromic chloride mineral dyeing process for cellulosics |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4445902A (en) * | 1983-05-04 | 1984-05-01 | The United States Of America As Represented By The Secretary Of Agriculture | Vapor process for mineral dyeing cellulosic fabrics |
| US4752297A (en) * | 1987-02-26 | 1988-06-21 | Osmose Wood Preserving, Inc. | Process for coloring wood with iron salt in water |
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