US9840A - Improvement in tanning - Google Patents
Improvement in tanning Download PDFInfo
- Publication number
- US9840A US9840A US9840DA US9840A US 9840 A US9840 A US 9840A US 9840D A US9840D A US 9840DA US 9840 A US9840 A US 9840A
- Authority
- US
- United States
- Prior art keywords
- hides
- tanning
- composition
- improvement
- bark
- 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
- 239000000203 mixture Substances 0.000 description 20
- VWDWKYIASSYTQR-UHFFFAOYSA-N Sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 6
- 239000010985 leather Substances 0.000 description 6
- LNTHITQWFMADLM-UHFFFAOYSA-N Gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 4
- 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
- NLXLAEXVIDQMFP-UHFFFAOYSA-N ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- 229920001864 tannin Polymers 0.000 description 4
- 235000018553 tannin Nutrition 0.000 description 4
- 239000001648 tannin Substances 0.000 description 4
- 210000001519 tissues Anatomy 0.000 description 4
- 239000001263 FEMA 3042 Substances 0.000 description 2
- 229940074391 Gallic acid Drugs 0.000 description 2
- 241000658540 Ora Species 0.000 description 2
- 229940033123 Tannic Acid Drugs 0.000 description 2
- LRBQNJMCXXYXIU-NRMVVENXSA-N Tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 235000004515 gallic acid Nutrition 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 235000015523 tannic acid Nutrition 0.000 description 2
- 229920002258 tannic acid Polymers 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
- C14C1/00—Chemical treatment prior to tanning
- C14C1/02—Curing raw hides
Definitions
- my invention consists in the use of the muriate of ammonia,in combination with niter in solution, for the purpose ofpreparing hides to accelerate the tanning process.
- Hides prepared by this composition are capable of absorbing the tannin from strong decoctions of leeched bark without a contraction of the fibers ora hardening of the surface, thus obviating the ditficulties heretofore encountered in the employment of strong ooze in the first stages of tanning. I save nearly onethird the bark usually required from the fact that .hides thus prepared are capable of absorbing the tannin before the tannic acid is converted into gallic acid to such an extent that tanners by the usual slow methods sustain a loss.
- muriate of ammonia in combination with niter, for the purpose of suspending pntrefaction, adding strength to the animal tissues, and for useful purposes in the manufacture of leather, as set forth.
Description
UNITED STATES PATENT OFFICE.
JOHN I. FULTON, OF MONONGAHELA CITY, PENNSYLVANIA.
IMPROVEMENT IN TANNING.
Specification forming part of Letters Patent No. 9,840, dated July 1'2, 1853.
To all whom it may concern:
Be it known that I, JOHN I. FULTON, of Monongahela City, in the county of Washington and State of Pennsylvania, have invented a new and Improved Composition for Preparing Hides for Tanning; and I do hereby declare that the following is a full and exact description thereof.
The nature of my invention consists in the use of the muriate of ammonia,in combination with niter in solution, for the purpose ofpreparing hides to accelerate the tanning process.
To enable others skilled in the art to use my invention, I will proceed to describe the manner in which I apply my composition.
After having hated and cleansed the hides of their impurities I employ muriate ot' animonia in combination with niter. After dissolving the ingredients I put the same into water sufiicient to cover the hides in the proportion of two to three pounds of the former to seven to ten pounds of the latter fora pack of twenty slaughter-hides averaging seventy-five pounds green weights,or for one hundred calfskins averaging ten pounds green weights. 1 put my hides into this preparation and stir or handle them as occasion may require, letting them remain in it until they have absorbed a sufficiency of the composition, the length of time depending on the temperature of the weather. After taking my hides out of this composition I put them into a weak bark-liquor, and let them remain in this one day, or until a fine grain is formed on the leather. I then put them into a strong bark-liquor, letting them remain in this from three to five days, when they will be sufficiently plumped and in good condition forlaying awayin strong leached liquor and bark.
The advantages to be derived in the employment of the above composition are the producing a superior article of leather in a much shorter time than can be done by the usual methods. Hides prepared by this composition are capable of absorbing the tannin from strong decoctions of leeched bark without a contraction of the fibers ora hardening of the surface, thus obviating the ditficulties heretofore encountered in the employment of strong ooze in the first stages of tanning. I save nearly onethird the bark usually required from the fact that .hides thus prepared are capable of absorbing the tannin before the tannic acid is converted into gallic acid to such an extent that tanners by the usual slow methods sustain a loss. The chemical ett'eet in the use of my composition in the suspension of putrefaction, opening the pores, plnmping the hides, and adding strength totheanimal tissues,&c., it may not be necessary for me to dwell upon.
Having thus set forth the nature or principle of myinvention and the advantages thereof, what I claim as myinvention, and desire to secure by Letters Patent, is-
The use of muriate of ammonia, in combination with niter, for the purpose of suspending pntrefaction, adding strength to the animal tissues, and for useful purposes in the manufacture of leather, as set forth.
JOHN I. FULTON.
Witnesses:
I. GORDON, AER-AM FUL'roN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US9840A true US9840A (en) | 1853-07-12 |
Family
ID=2070161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US9840D Expired - Lifetime US9840A (en) | Improvement in tanning |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US9840A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021138247A1 (en) | 2019-12-30 | 2021-07-08 | LifeEDIT Therapeutics, Inc. | Rna-guided nucleases and active fragments and variants thereof and methods of use |
-
0
- US US9840D patent/US9840A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021138247A1 (en) | 2019-12-30 | 2021-07-08 | LifeEDIT Therapeutics, Inc. | Rna-guided nucleases and active fragments and variants thereof and methods of use |
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