US26966A - Improvement in compositions for tanning skins and hides - Google Patents
Improvement in compositions for tanning skins and hides Download PDFInfo
- Publication number
- US26966A US26966A US26966DA US26966A US 26966 A US26966 A US 26966A US 26966D A US26966D A US 26966DA US 26966 A US26966 A US 26966A
- Authority
- US
- United States
- Prior art keywords
- skins
- tanning
- hides
- improvement
- compositions
- 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
- 210000003491 Skin Anatomy 0.000 title description 20
- 239000000203 mixture Substances 0.000 title description 8
- 239000010985 leather Substances 0.000 description 20
- 229940037003 alum Drugs 0.000 description 12
- 239000000126 substance Substances 0.000 description 12
- 229920002472 Starch Polymers 0.000 description 10
- 235000019698 starch Nutrition 0.000 description 10
- 239000008107 starch Substances 0.000 description 10
- 241000276489 Merlangius merlangus Species 0.000 description 8
- 235000014220 Rhus chinensis Nutrition 0.000 description 8
- 240000003152 Rhus chinensis Species 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 235000002639 sodium chloride Nutrition 0.000 description 6
- 239000011780 sodium chloride Substances 0.000 description 6
- 239000004615 ingredient Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 240000006523 Abies balsamea Species 0.000 description 2
- 235000007173 Abies balsamea Nutrition 0.000 description 2
- 235000016976 Quercus macrolepis Nutrition 0.000 description 2
- 244000305267 Quercus macrolepis Species 0.000 description 2
- 240000006028 Sambucus nigra Species 0.000 description 2
- VXMKYRQZQXVKGB-CWWHNZPOSA-N Tannin Chemical compound O([C@H]1[C@H]([C@@H]2OC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)O[C@H]([C@H]2O)O1)O)C(=O)C1=CC(O)=C(O)C(O)=C1 VXMKYRQZQXVKGB-CWWHNZPOSA-N 0.000 description 2
- 235000020127 ayran Nutrition 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229920001592 potato starch Polymers 0.000 description 2
- 229940116317 potato starch Drugs 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 235000018553 tannin Nutrition 0.000 description 2
- 229920001864 tannin Polymers 0.000 description 2
- 239000001648 tannin Substances 0.000 description 2
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
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
Definitions
- my invention consists in the use of a compound of tanning ingredients composed of terra-japonica, the leaves and bark of the black-elder plant, (genus Sambucas,) nut-galls,starch, common salt, alum, and whiting, (chalk,) by which I am enabled to make beautiful, firm, durable, and flexible leather with a great saving of labor and expense in, comparison with other processes as now practiced.
- a compound of tanning ingredients composed of terra-japonica, the leaves and bark of the black-elder plant, (genus Sambucas,) nut-galls,starch, common salt, alum, and whiting, (chalk,) by which I am enabled to make beautiful, firm, durable, and flexible leather with a great saving of labor and expense in, comparison with other processes as now practiced.
- the tanning effect would be the same were the alum and whiting mixed with the other substances at first; but I have found that by so doing the leather acquires a yellow color,
- kip and cov hides will be tanned in about from ten to fifteen days, and with six times the quantities, for the twelve calf skins described, harness and sole leather will be tanned in about from thirty to forty days. This may be called a short process, saving a. great dealof time as well as expense in tanning leather.
- elder, alum, salt, whiting, and starch in the proportions stated, in the manner and for the purposes herein set forth.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
UNITED STATES w. 1). summer, or CLEVELAND. OHIO.
IMPROVEMENT IN COMPOSITIONS FOR TANNING SKINS AND HIDES.
Specification forming part of Letters Patent No. 2,966,.dated January 31, 1860.
To all whom it may concern:
Be it known that I, W. D. HUNTING, of Cleveland, in the county of Cuyah'oga and State of Ohio, have invented a new and useful Improvement in Tanning Skins and Hides; and I hereby declare that the following is a full, clear, and exact description of the same.
The nature of my invention consists in the use of a compound of tanning ingredients composed of terra-japonica, the leaves and bark of the black-elder plant, (genus Sambucas,) nut-galls,starch, common salt, alum, and whiting, (chalk,) by which I am enabled to make beautiful, firm, durable, and flexible leather with a great saving of labor and expense in, comparison with other processes as now practiced.
To enable others skilled in the art to make and use my invention, I will proceed to describe it as briefly and clearly as possible.
, After the skins are limed and hated, or otherwise prepared for tanning in the usual manner, which need not be described, I take the following quantities of substances for tanning twelve (12) calf-skins of the common size: To seven (7) gallons of boiling soft water placed in a suitable vessel, 1 add fifteen (15) pounds of terra-japonica, four (4) ounces of dry elder leaves and bark, and six (6) ounces of powdered nut-galls, and stirthem thoroughly untiltheyarecompletelymacerated. Then I add eight (8) gallons of cold water, makings. total of fifteen gallons. I now add one pound of common potato-starch and an equal quantity of common salt, and stir the whole up until they are well mixed together, when the liquor is ready to receive the skins. These are now entered and handled well for fourhours, when they are lifted out, and four (4) ounces of alum (dissolved) and fourteen (14) ounces of common whiting added. The liquor is now stirred up well and the skins again entered, taking care to handle them carefully.
The tanning effect would be the same were the alum and whiting mixed with the other substances at first; but I have found that by so doing the leather acquires a yellow color,
which militates against its sale; but by handling the skins for four hours in the liquor described before the alum is used the objection able yellow color is obviated.
By handling the skins from time to time in the liquor described for about six or eight days the tanning process is completed, and the skins converted into good leather.
After the liquor is made, as set forth, there is no more added to it. The quantity of intwelve skins each do not require more than about two-thirds of the quantities of substances specified to tan them.
With abut four times the foregoing-described quaintities of water and substances, kip and cov hides will be tanned in about from ten to fifteen days, and with six times the quantities, for the twelve calf skins described, harness and sole leather will be tanned in about from thirty to forty days. This may be called a short process, saving a. great dealof time as well as expense in tanning leather.
The following is an explanation of the action of the substances or ingredients employed so far as I am able to give it: Much saltis'objectiouable to use, because it is hygrometic; but the quantity which I employ seems to impart the exact amount of moisture required to give the leather a good finish. The terra-japonica and nut-galls contain a great amount of tannin; but while they make the leather firm and solid they are liable to make it harsh, hard,and brittle. The alum, elder, and starch prevent the leather becoming brittle, the starch being of a tawing character. The starch also tends to produce a beautifuhglossy, smooth, and firm surface in finishing the leather. .The wfhiting, while it does not prevent the action 0 the tanning substances, greatly modifies the color of the leather, and makes it resemble that tanned by oak-bark.
I can also use oak or hemlock bark as part of my composition. In such a case I would employ less terra-japonica and galls than the amount specified.
Having thus explained my invention, what I claim,and desire to secure by Letter Patent, 1s--- The composition of terra-japonica, nut-galls,
elder, alum, salt, whiting, and starch in the proportions stated, in the manner and for the purposes herein set forth.
W. D. BUN TING.
Witnesses:
N. E. WILcox, L. B. WHITNEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US26966A true US26966A (en) | 1860-01-31 |
Family
ID=2096634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US26966D Expired - Lifetime US26966A (en) | Improvement in compositions for tanning skins and hides |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US26966A (en) |
-
0
- US US26966D patent/US26966A/en not_active Expired - Lifetime
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