US349589A - Tanning process - Google Patents
Tanning process Download PDFInfo
- Publication number
- US349589A US349589A US349589DA US349589A US 349589 A US349589 A US 349589A US 349589D A US349589D A US 349589DA US 349589 A US349589 A US 349589A
- Authority
- US
- United States
- Prior art keywords
- hides
- liquor
- tanning
- hide
- tanning process
- 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
- 235000011121 sodium hydroxide Nutrition 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 10
- 150000003839 salts Chemical class 0.000 description 8
- 239000011780 sodium chloride Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000004615 ingredient Substances 0.000 description 6
- 239000010985 leather Substances 0.000 description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 4
- CVHZOJJKTDOEJC-UHFFFAOYSA-N Saccharin Chemical compound C1=CC=C2C(=O)NS(=O)(=O)C2=C1 CVHZOJJKTDOEJC-UHFFFAOYSA-N 0.000 description 4
- 235000015450 Tilia cordata Nutrition 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 239000002956 ash Substances 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 239000004328 sodium tetraborate Substances 0.000 description 4
- 235000010339 sodium tetraborate Nutrition 0.000 description 4
- 239000001828 Gelatine Substances 0.000 description 2
- -1 alum Substances 0.000 description 2
- 229940037003 alum Drugs 0.000 description 2
- 239000003212 astringent agent Substances 0.000 description 2
- 238000004040 coloring Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 229920000159 gelatin Polymers 0.000 description 2
- 235000019322 gelatine Nutrition 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 230000000717 retained Effects 0.000 description 2
- 238000002791 soaking Methods 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
- C14C1/00—Chemical treatment prior to tanning
- C14C1/06—Facilitating unhairing, e.g. by painting, by liming
Definitions
- This invention has for its object to provide a process for tanning leather, whereby the hides are rendered soft and pliable, their pores are opened to permit of the thorough or effective penetration of the tanning-liquor, which pores are then closed, theleather or hides are prevented from cracking, all the glue and gelatine therein being retained, consequently the resultant will be waterproof, and the liquor is prevented from sou ring, which foregoing objects are among the chief advantages of my invention.
- the first step is to place the hides in a vat containing lye and salt, in the proportions of ten pounds of the latter to one pint of the former for each hide of light weight. After the soaking ofthe hides a specified time, as well understood by those skilled in the art, add from time to time a small quantity of lye. until the hair of the hides begins to loosen or star t.
- the second step is the liming of the hides, for which purpose, insteadof lime, as previously used, lye or ashes is employed, one quart of either of which with water being added daily until the hair has become loosened. Vith a small amount of lye left in the hides, the latter will not crack, as has been experienced in the use of lime in passing the hides through the tanning process proper, as hereinafter described, also, in the bating of will prevent the liquor from becoming sour,
- the final or last step consists of subjecting the hides to the tanning process proper, the liquor of which is made of the following ingredients, in the proportions hereinafter named, for a single hide: Ten pounds of salt, one pound of saccharine matter, (sugar,) to which is added one pound of French ocher for coloring purposes, and one ounce of borax to impart softness to hide, and water sufficient to cover hide.
- the saidingredients, with water are added in the same proportions for eaeh'additional hide placed in the vat. I also use this liquor, as thus produced,
- tanning leather which consists, first, in placiugthe hide in a liquor consisting of lye and salt; second, adding ashes or bran until the hair starts; third, adding more bran; fourth, in placing the'hide in a liquor consisting of salt, alum, borax, saccharine matter,Frencl1 ocher, and water, substantially as and for the purpose set forth.
- a as e 70 leather can be exposed to the action of water
Description
UNITED STATEs PATENT OFFICE.
GEORGE \V. HERSEY, OF EMPIRE, \VISOONSIN.
TANNING PROCESS.
SPECIFICATION forming part of'Letters Patent No. 349,589, dated September 21, 1886. I
Application tiled December-E21, 1885. Serial NofiBGJlGl. (Spccimensd .To all whom it may concern:
Be it known that I, GEORGE W. HERSEY, a citizen of the United States, residing at Empire, in the county of Fond du Lac and State of W'isconsin, have invented certain new and useful Improvements in Ta'nning Compounds, of which the following is a specification.
This invention has for its object to provide a process for tanning leather, whereby the hides are rendered soft and pliable, their pores are opened to permit of the thorough or effective penetration of the tanning-liquor, which pores are then closed, theleather or hides are prevented from cracking, all the glue and gelatine therein being retained, consequently the resultant will be waterproof, and the liquor is prevented from sou ring, which foregoing objects are among the chief advantages of my invention. I
The. nature of my invention consists of the steps employed in the conduct of the same, and of the ingredients,including their proper tions, more particularly the ingredients mentioned in connection with the tanning process or operation proper, substantially as hereinafter described,and pointed out in the claims. in carrying out my invention the first step is to place the hides in a vat containing lye and salt, in the proportions of ten pounds of the latter to one pint of the former for each hide of light weight. After the soaking ofthe hides a specified time, as well understood by those skilled in the art, add from time to time a small quantity of lye. until the hair of the hides begins to loosen or star t. Should, at this stage of the procedure, a deodorizer be required, also add about one hundred drops of carbolic acid; The second step is the liming of the hides, for which purpose, insteadof lime, as previously used, lye or ashes is employed, one quart of either of which with water being added daily until the hair has become loosened. Vith a small amount of lye left in the hides, the latter will not crack, as has been experienced in the use of lime in passing the hides through the tanning process proper, as hereinafter described, also, in the bating of will prevent the liquor from becoming sour,
which hating of the hides is now the next step in order, the same being carried out by adding to the liquor bran to the extent of a peek at the beginning. The final or last step consists of subjecting the hides to the tanning process proper, the liquor of which is made of the following ingredients, in the proportions hereinafter named, for a single hide: Ten pounds of salt, one pound of saccharine matter, (sugar,) to which is added one pound of French ocher for coloring purposes, and one ounce of borax to impart softness to hide, and water sufficient to cover hide. The saidingredients, with water, of course, are added in the same proportions for eaeh'additional hide placed in the vat. I also use this liquor, as thus produced,
. with all astringents, and with it and the previously-described treatment of the hides the latter are possessed, in addition to all the qualities set Iorth at the beginning of this specification, ot' the following: The resultant for days, and it will be perfectly impervious thereto, and the tanning is effected in a minimum space of time, while the best color is obtained for the leather.
Having now described my invention, what I desire to secure by Letters Patent is The herein -described process of tanning leather, which consists, first, in placiugthe hide in a liquor consisting of lye and salt; second, adding ashes or bran until the hair starts; third, adding more bran; fourth, in placing the'hide in a liquor consisting of salt, alum, borax, saccharine matter,Frencl1 ocher, and water, substantially as and for the purpose set forth.
In testimony whereof I affix my signature in presence of two witnesses.
GEORGE W. HERSEY. Witnesses: V
OWEN A. WELLs, FRANK M. DANA.
a as e 70 leather can be exposed to the action of water
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US349589A true US349589A (en) | 1886-09-21 |
Family
ID=2418654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US349589D Expired - Lifetime US349589A (en) | Tanning process |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US349589A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8459494B2 (en) | 2007-08-09 | 2013-06-11 | Cory Dewinetz | Apparatus for shading a beverage container |
-
0
- US US349589D patent/US349589A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8459494B2 (en) | 2007-08-09 | 2013-06-11 | Cory Dewinetz | Apparatus for shading a beverage container |
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