US1032151A - Bleaching process. - Google Patents
Bleaching process. Download PDFInfo
- Publication number
- US1032151A US1032151A US68962712A US1912689627A US1032151A US 1032151 A US1032151 A US 1032151A US 68962712 A US68962712 A US 68962712A US 1912689627 A US1912689627 A US 1912689627A US 1032151 A US1032151 A US 1032151A
- Authority
- US
- United States
- Prior art keywords
- cotton
- bleaching
- bath
- bleaching process
- per cent
- 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
- 238000000034 method Methods 0.000 title description 16
- 238000004061 bleaching Methods 0.000 title description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 14
- 229920000742 Cotton Polymers 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 10
- 239000002657 fibrous material Substances 0.000 description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 239000011591 potassium Substances 0.000 description 6
- 235000010288 sodium nitrite Nutrition 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229920002955 Art silk Polymers 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3945—Organic per-compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
Definitions
- My invention relates to a new and improved process of bleaching vegetable fibrous material, such as cotton, linen and the like, including also artificial silk, the object of my process being to produce more effective bleaching in a more economical manner than has heretofore been done and in a shorter space of time.
- one of the objects of my invention is to provide an efficient and economical process for producing this effect, besides the bleaching of undyed fibrous material into a pure white.
- An improved bleaching process which ,consists in treating fibrous material first .-l1'1 a bath containlng permanganate of potassium and sulfuric acid, and thereupon in a bath containing sodium nitrite.
- An improved bleaching process which consists in treating fibrous material first in a bath containing permanganate of potassium, and thereupon in a bath containing sodium nitrite.
- An improved bleaching process which consists in treating fibrous material in a bath containing permanganate of potassium and sulfuric acid, and in a separate bath containing a neutralizing agent.
- An improved bleaching process which consists in immersing the material to be bleached in a bath containing sodium nitrite; then immersing the material in a bath containing permanganate of potassium and sulfuric acid, and thereupon subjecting the material to a cleansing bath.
- An improved bleaching process which consists in immersing the material to be bleached in a cold bath containing about three per cent. permanganate of potassium and about one per cent. of sulfuric acid, proportioned to the weight of said material; thereupon immersing said material in a cold bath containin about two and a half per cent. sodium nitrite and three per cent. of sulfuric acid, proportioned to the weight of said material, and thereupon subjecting the material to a cleansing bath.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Description
s-iii Freezes DRAFT STATES PATENT OFFICE.
EUGENE L. MAUPAI, OF NEW YORK, N. Y.
BLEAGI-IING PROCESS.
No Drawing.
Patented July 9, 1912. Serial N 0. 689,627.
To all whom it may concern: I
Be it known that I, EUGENE L. MAUPAI,21, citizen of the United States of America, residing at Bronx borough, city, county, and State of New York, have invented certain new and useful Improvements in Bleaching Processes, of which the following is a full, clear, and exact description.
My invention relates to a new and improved process of bleaching vegetable fibrous material, such as cotton, linen and the like, including also artificial silk, the object of my process being to produce more effective bleaching in a more economical manner than has heretofore been done and in a shorter space of time.
I find that heretofore, when fabrics or fibrous material have already been dyed in colors, it has been diflicult if not impossible, to eliminate the dye and change the material or fibers into their natural undyed or bleached condition, and one of the objects of my invention is to provide an efficient and economical process for producing this effect, besides the bleaching of undyed fibrous material into a pure white.
In carrying out my improved process, if I desire, for instance, to bleach fibrous cotton or linen from its natural condition to a pure white, I place a sufficient quantity, say 100 pounds, of such cotton in a bath of cold water, having previously added to the water three per cent. (of the weight of the cotton) of permanganate of potassium, together with one to two per cent. (of the weight of the cotton).of sulfuric acid, and allow the cotton to soak for about one-half an hour. I thereupon immerse the cotton in a fresh water bath containing two and one-half per cent. (of the weight of the cotton) 1 of sodium nitrite and three per cent. (of the weight of the cotton) of sulfuric acid. I'allow the cotton to remain in this fresh cold water bath until the desired whiteness is obtained. The cotton is then washed in luke-warm water to take away the acid and cleanse the same.
I find that by my bleaching process, I can take fibrous material (such as cotton, linen or artificial silk) that has already been dyed and obtain a natural whiteness of the material, whereupon the goods may be redyed into any suitable color. I also find that by the use of my bleaching process, the fibers, after bleaching, retain their natural durabllity, not having been in any way weakened or disintegrated, which occurs by the use of other bleaching processes, known to me. Furthermore by my process I perform the bleaching operation in considerably less time than by the processes heretofore in use.
Having now described my invention, what I claim and desire to secure by Letters Patent is:
1. An improved bleaching process which ,consists in treating fibrous material first .-l1'1 a bath containlng permanganate of potassium and sulfuric acid, and thereupon in a bath containing sodium nitrite.
2. An improved bleaching process which consists in treating fibrous material first in a bath containing permanganate of potassium, and thereupon in a bath containing sodium nitrite.
3. An improved bleaching process which consists in treating fibrous material in a bath containing permanganate of potassium and sulfuric acid, and in a separate bath containing a neutralizing agent.
4. An improved bleaching process, which consists in immersing the material to be bleached in a bath containing sodium nitrite; then immersing the material in a bath containing permanganate of potassium and sulfuric acid, and thereupon subjecting the material to a cleansing bath.
5. An improved bleaching process, which consists in immersing the material to be bleached in a cold bath containing about three per cent. permanganate of potassium and about one per cent. of sulfuric acid, proportioned to the weight of said material; thereupon immersing said material in a cold bath containin about two and a half per cent. sodium nitrite and three per cent. of sulfuric acid, proportioned to the weight of said material, and thereupon subjecting the material to a cleansing bath.
Signed at New York city, N. Y. this 8th 7 day of April, 1912.
EUGENE L. MAUPAI. Witnesses:
ABRAM SHLIVEK, ESTELLE O. HAMBURGER.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68962712A US1032151A (en) | 1912-04-09 | 1912-04-09 | Bleaching process. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68962712A US1032151A (en) | 1912-04-09 | 1912-04-09 | Bleaching process. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1032151A true US1032151A (en) | 1912-07-09 |
Family
ID=3100441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US68962712A Expired - Lifetime US1032151A (en) | 1912-04-09 | 1912-04-09 | Bleaching process. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1032151A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3384444A (en) * | 1964-06-29 | 1968-05-21 | Reeves Bros Inc | Production of lightfast jute |
| US3472609A (en) * | 1968-07-08 | 1969-10-14 | Nujute Inc | Bleaching of jute |
-
1912
- 1912-04-09 US US68962712A patent/US1032151A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3384444A (en) * | 1964-06-29 | 1968-05-21 | Reeves Bros Inc | Production of lightfast jute |
| US3472609A (en) * | 1968-07-08 | 1969-10-14 | Nujute Inc | Bleaching of jute |
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