US184114A - Improvement in tanning leather - Google Patents
Improvement in tanning leather Download PDFInfo
- Publication number
- US184114A US184114A US184114DA US184114A US 184114 A US184114 A US 184114A US 184114D A US184114D A US 184114DA US 184114 A US184114 A US 184114A
- Authority
- US
- United States
- Prior art keywords
- hides
- pounds
- improvement
- tanning
- lime
- 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 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 239000005864 Sulphur Substances 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000004209 hair Anatomy 0.000 description 3
- 235000006408 oxalic acid Nutrition 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229940095054 ammoniac Drugs 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C1/00—Chemical treatment prior to tanning
- C14C1/06—Facilitating unhairing, e.g. by painting, by liming
Definitions
- My invention relates to improvements in methods for tanning leather, by which I am able to reduce the time usually needed in tanning, as well as preventing the hides from being injured by the lime used for taking the hair off; and my invention consists, first, in soaking the hides in water, as usual, from two to four days, so as to soften them previous to taking the hairs off, which is done by putting the hides in a lime-vat consisting of about four hundred gallons of water, about two bushels of slaked lime, to which is added, for the purpose of quickening the process, about two pounds of oxalic acid, and about two pounds of chloride of soda, in which solution the hides remain from two to three days, and in which they are handled daily.
- the hides and skins are afterward put in a vat and tanned in about four hundred gallons of bark-liquor mixed with about two pounds of alcohol, about two pounds of sulphate of zinc, and about two pounds of wood-acid, in
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
UNITED STATES PATENT OFFICE.
MAGNUS J. SODERBERG, OF MALMO, SWEDEN.
IMPROVEMENT IN TANNING LEATHER.
Specification forming part of Letters Patent No. 1 84,114, dated November 7, 1876; application filed July 13, 1876.
To all whom it may concern:
Be it known'that I, MAGNUS J. SfiDERBERG,
of Malmo, in the county of Ohristianstad,
and ,Kingdom of Sweden, have invented certain new and useful Improvements in Methods of Tanning Leather; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.
My invention relates to improvements in methods for tanning leather, by which I am able to reduce the time usually needed in tanning, as well as preventing the hides from being injured by the lime used for taking the hair off; and my invention consists, first, in soaking the hides in water, as usual, from two to four days, so as to soften them previous to taking the hairs off, which is done by putting the hides in a lime-vat consisting of about four hundred gallons of water, about two bushels of slaked lime, to which is added, for the purpose of quickening the process, about two pounds of oxalic acid, and about two pounds of chloride of soda, in which solution the hides remain from two to three days, and in which they are handled daily.
For the purpose of taking the lime out from the hides, I drench them in a vat containing about four hundred gallons of water, to which is added about ten pounds of chloride of soda, and ten pounds of dissolved sulphur, in which the hides are left about two days. The dissolved sulphur is obtained by boiling ten pounds of sulphur together with about twelve gallons of water and about five pounds of common soda. The object of the chloride of soda is to open the pores of the hides or skin's,
so that the sulphur can act upon them quicker for the purpose of entirely removing the lime. The hides and skins are afterward put in a vat and tanned in about four hundred gallons of bark-liquor mixed with about two pounds of alcohol, about two pounds of sulphate of zinc, and about two pounds of wood-acid, in
which the tanning takes place, and in which I let the hides remain from thirty to forty days, and the skins from twelve to twenty Theimproved leather-tanning process, as
herein described, consisting in first soaking the hides in water, after which they are put in a lime-vat composed of water, slaked lime, oxalic acid, and chloride of soda, for the purpose of taking the hairs off, then drenched in a vat composed of water, chloride of soda, and dissolved sulphur, for the purpose of taking the lime out of the hides, then tanned in a vat containing bark-liquor, alcohol, sulphate of zinc, and wood-acid, and finally softened in a mixture of bark-liquor, gas-ammoniac, and oxalic acid, in the respective quantities and times substantially as set forth and described.
In testimony that I claim the foregoing as my own invention I have affixed my signature in presence of two witnesses.
MAGNUS J. SODERBERG. Witnesses:
ALBAN ANDRIilN, HENRY GHADBOURNE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US184114A true US184114A (en) | 1876-11-07 |
Family
ID=2253519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US184114D Expired - Lifetime US184114A (en) | Improvement in tanning leather |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US184114A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050283399A1 (en) * | 2004-06-21 | 2005-12-22 | Aquilante Anthony A | Method for operating a catering business |
-
0
- US US184114D patent/US184114A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050283399A1 (en) * | 2004-06-21 | 2005-12-22 | Aquilante Anthony A | Method for operating a catering business |
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