US148056A - Improvement in the processes of tanning - Google Patents
Improvement in the processes of tanning Download PDFInfo
- Publication number
- US148056A US148056A US148056DA US148056A US 148056 A US148056 A US 148056A US 148056D A US148056D A US 148056DA US 148056 A US148056 A US 148056A
- Authority
- US
- United States
- Prior art keywords
- tanning
- improvement
- processes
- liquor
- tan
- 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 6
- 239000000779 smoke Substances 0.000 description 10
- 239000010985 leather Substances 0.000 description 8
- 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 4
- 235000009508 confectionery Nutrition 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 235000018553 tannin Nutrition 0.000 description 4
- 229920001864 tannin Polymers 0.000 description 4
- 239000001648 tannin Substances 0.000 description 4
- 241001502381 Budorcas taxicolor Species 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000000391 smoking Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C14C3/08—Chemical tanning by organic agents
- C14C3/10—Vegetable tanning
Description
UNITED STATES PATENT OFFICE.
GEORGE W. HATCH, OF LAWRENCE, KANSAS.
IMPROVEMENT IN THE PROCESSES OF TANNING.
Specification forming part of Letters Patent No. 148,056, dated March 3, 1874; application filed January 17, 1874.
To all whom it may concern Be it known that I, GEO. WV. HATCH, of Lawrence, county of Douglas, State of Kansas, have invented or discovered an Improve;
ment in the Art of Tanning, whereby smoke may be better, utilized for preserving tanliquors from souring, or for restoring sweet ness to tan-liquors which have become sour.
The following is a true description of my process: Take woolen blankets or other suitable fibrous material when wet, and by the use of hardwood chips, or other suitable substance, thoroughly impregnate them with smoke, which maybe done by hanging themin a close room filled with the smoke, for two or three hours, or more, and then press out the moisture from the smoked material, and mix it with the tanliquor direct, or add to the tan-bark leaches, takin g care by stirring to have it thoroughly mixed with the tan-liquor. By this method,
the water in the material will become thoroughly impregnated with smoke.
This treatment I have found preserves the tan-liquor from souring, and at the same time prevents the precipitation and destruction of tannin, resulting from sour liquor coming in contact with fresh or sweet liquor, which often involves much loss. Sour tan-liquor also destroys a portion of the tannin already incorporated-into the leather, thus causing it to fall a back in plumpness, which cannot again be restored, thereby occasioning much of loss in the weight of the leather when finished for market.
In tanning sole-leather, I find that by directly smoking the hides they become porous, and the smoke thereby becomes a detriment, as that kind of leather should be close, hard, and solid. My new method of applying the smoky fluid, while it preserves the tanliquor from souring and restores sour liquor
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US148056A true US148056A (en) | 1874-03-03 |
Family
ID=2217469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US148056D Expired - Lifetime US148056A (en) | Improvement in the processes of tanning |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US148056A (en) |
-
0
- US US148056D patent/US148056A/en not_active Expired - Lifetime
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