US172908A - Improvement in processes for waterproofing leather - Google Patents
Improvement in processes for waterproofing leather Download PDFInfo
- Publication number
- US172908A US172908A US172908DA US172908A US 172908 A US172908 A US 172908A US 172908D A US172908D A US 172908DA US 172908 A US172908 A US 172908A
- Authority
- US
- United States
- Prior art keywords
- leather
- improvement
- processes
- waterproofing leather
- mixture
- 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
- 239000010985 leather Substances 0.000 title description 12
- 238000000034 method Methods 0.000 title description 3
- 238000004078 waterproofing Methods 0.000 title description 2
- 239000000203 mixture Substances 0.000 description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- 239000011294 coal tar pitch Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 101100184147 Caenorhabditis elegans mix-1 gene Proteins 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000013871 bee wax Nutrition 0.000 description 1
- 229940092738 beeswax Drugs 0.000 description 1
- 239000012166 beeswax Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 235000015424 sodium Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/04—Sulfonic acids; Derivatives 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
Definitions
- This invention relates to improving the condition of leather by chemical and mechanical treatment; and it consists in subjecting leather, in hides, skins, or pieces, to a bath consisting of a saturated solution with distilled water of equal parts of chloride of sodium and bicarbonate of soda or potash for any highly-tanned skins in-Which there is an excess of acid, or in a like solution oflower strength for skins not so highly tanned, previous to an after treatment,'whereby theleather is rendered waterproof, and at the same ti me material] ystrcn gthened in fiber and texture, and which treatment can be varied, so as to leave the-leather treated either rigid or pliant, according to the purpose for which it is required.
- the leather which has previously been heated in an oven to about 90 Fahrenheit, is, according to its substance or quality, either dipped intothe mixture, or allowed to remain in it for a few seconds or minutes, by which time it will have imbibed a sufficient quantity of the mixture. After complete absorption has taken place, the leather is rolled between brass, gun-metal, or wooden rollers or cylinders.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Textile Engineering (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
UNITED STATES MATTHEW BIRD, OF LONDON, GREAT BRITAIN.
IMPROVEMENT IN PROCESSES FOR WATERPROOFING LEATHER.
Specification forming part of Letters Patent No. 172,908, dated February 1-, 1876; application filed December 9, 1874.
To all whom it may concern:
Be it known that I, MATTHEW BIRD, of the city of London, in the Kingdom of Great Britain, have invented certain Improvements in Waterproofingand otherwise improving the conditiouof Leather, of which the following is a specification:
This invention relates to improving the condition of leather by chemical and mechanical treatment; and it consists in subjecting leather, in hides, skins, or pieces, to a bath consisting of a saturated solution with distilled water of equal parts of chloride of sodium and bicarbonate of soda or potash for any highly-tanned skins in-Which there is an excess of acid, or in a like solution oflower strength for skins not so highly tanned, previous to an after treatment,'whereby theleather is rendered waterproof, and at the same ti me material] ystrcn gthened in fiber and texture, and which treatment can be varied, so as to leave the-leather treated either rigid or pliant, according to the purpose for which it is required. I
Leather has been rendered water-proof by immersing it in a mixture of parafline with bees-wax, or the like. Although this is in 'generalan efiective process, I have found'that it is sometimes attended with failures, especially so when the leather is highly tanned;
and to overcome this difficulty, whichis the l object of my present invention, I immerse the hides, skins, or the like, first in a solution of I chloride of sodium and bicarbonate of soda 'orvpotash, which I find will render the leather I more susceptible to an after treatment by immersing it in a vat or vessel containing a mix- 1 ture of coal-tar pitch and solid paraffine. The -mixture consists of about seventy-five per cent. of solid paraffine, and about twenty-five .per cent. coal-tar pitch. These two substances are first dissolved by heat, and in separate vessels, and then the pitch is run into that containing the parafline, and the heat maintained until they become, by stirring, intimately mixed together. The heat of the mixture being still maintained, the leather, which has previously been heated in an oven to about 90 Fahrenheit, is, according to its substance or quality, either dipped intothe mixture, or allowed to remain in it for a few seconds or minutes, by which time it will have imbibed a sufficient quantity of the mixture. After complete absorption has taken place, the leather is rolled between brass, gun-metal, or wooden rollers or cylinders.
'Should it be judged that the leather has not absorbed to the full extent the mixture, it may, previously to the rolling process, be again placed in the oven, to insure thorough absorp- 7 then an application of parafliue, or paraffine and coal-tar, all substantially as and for the purpose stated.
' MATTHEW BIRD.
Witnesses:
[MATTHEW Aueusrus SoUL,
ALFaED JEFFERY.
PATENT Orrron.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US172908A true US172908A (en) | 1876-02-01 |
Family
ID=2242315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US172908D Expired - Lifetime US172908A (en) | Improvement in processes for waterproofing leather |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US172908A (en) |
-
0
- US US172908D patent/US172908A/en not_active Expired - Lifetime
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