US877341A - Process of tanning hides and skins. - Google Patents
Process of tanning hides and skins. Download PDFInfo
- Publication number
- US877341A US877341A US38407507A US1907384075A US877341A US 877341 A US877341 A US 877341A US 38407507 A US38407507 A US 38407507A US 1907384075 A US1907384075 A US 1907384075A US 877341 A US877341 A US 877341A
- Authority
- US
- United States
- Prior art keywords
- skins
- hides
- leather
- tanning
- tanning hides
- 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 12
- 239000010985 leather Substances 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 235000003891 ferrous sulphate Nutrition 0.000 description 4
- 239000011790 ferrous sulphate Substances 0.000 description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001868 water Inorganic materials 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 239000004323 potassium nitrate Substances 0.000 description 2
- 235000010333 potassium nitrate Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000272201 Columbiformes Species 0.000 description 1
- 241000235319 Havinthus Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- LCPUDZUWZDSKMX-UHFFFAOYSA-K azane;hydrogen sulfate;iron(3+);sulfate;dodecahydrate Chemical compound [NH4+].O.O.O.O.O.O.O.O.O.O.O.O.[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O LCPUDZUWZDSKMX-UHFFFAOYSA-K 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- OIDPCXKPHYRNKH-UHFFFAOYSA-J chrome alum Chemical compound [K]OS(=O)(=O)O[Cr]1OS(=O)(=O)O1 OIDPCXKPHYRNKH-UHFFFAOYSA-J 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 235000007686 potassium Nutrition 0.000 description 1
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 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
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/04—Mineral tanning
- C14C3/06—Mineral tanning using chromium compounds
Definitions
- Our inventlon relates to a new process of tanning hides or skins; and the object thereof is to devise a process whichtwill accom- 'pl'ish the tanningof hides or skins "in less.
- a small amount of acetic acid is added if it is desired to produce a soft and extremely flexible leather.
- Hides or skins to be tanned are first subjected to a preliminary preparatory treatment in general use in the art of tanning, such as to a treatment with salt, lime, pigeons dung, acetic acid, etc.; after which they are immersed in the; solution above mentioned for a period ranging from 8 to 40- hours, accordln skins to e tanned.
- a preliminary preparatory treatment in general use in the art of tanning, such as to a treatment with salt, lime, pigeons dung, acetic acid, etc.
- the pur ose'of using the above solution is to accomp ish'theaction of tanning by means of iron alum and chrome alum, which action to the condition of'the hides or is the result of a chemical reaction between the ferrous sulfate, potassium nitrate, po-
- tassium bichromate and the organic substance of the hides or skins, andwhich action is aided by the small amount of ferric sulfate and free sulfuric acid usually present in commercial ferrous sulfate.
- the leather produced by our rocess also resists the action'of moisture an water containing chemicals in solution tov an unusual degree, which renders it well suited for use in ex osed positions.
- The'method of tanning hides or skins after they have been subjected to a suitable preparatory treatment which consists in treating them with a'solution formed from water, ferrous sulfate, potassium nitrate, and potassium bichromatein the proportion substantially as above set forth.
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
: srnrns I JIHAOHT I NOUYE, OF MINAMIKU, AND T SURUMATSU DOGURA, OF KAWAKAMI, JAPAN.
PROCESS OF TANNING HIDES AND SKINS.
Specification of Letters Patent.
Patented Jan. 21, 1908.
Application filed July 16 1907. Serial No. 384.075
To all whom it may concern:
Be it known that we, JrHAoHI Brown, of 2896 Motomachi Sanchome, Namba, Minamiku, Osaka, Japan, and 'TSURUMATSU DOGURA, of 69 Otaki, Kawakami, Yoshino,
described and ascertained in an by the fo tion.
lowing statement.
Our inventlon relates to a new process of tanning hides or skins; and the object thereof is to devise a process whichtwill accom- 'pl'ish the tanningof hides or skins "in less.
time than is required in .tanning processes now in use, and which will result in astrongcr and at the same time a more pliableleather than is produced by former tanning processes.
With the above objects in view we repare a solution composed of the following ingredicuts in substantially the proportion stated,
although it will be understood that the amount of each ingredient is subject to varia- However, a solution made up of the. ingredients in the uantities stated has been found to give the est results, and the proportion stated is the best with which we are acquainted:
Water. -100.00 parts I Ferrous sulfate 11.25
Potassium'nitrate 4.00
Potassium bichromate 1.25
A small amount of acetic acid is added if it is desired to produce a soft and extremely flexible leather.
Hides or skins to be tanned are first subjected to a preliminary preparatory treatment in general use in the art of tanning, such as to a treatment with salt, lime, pigeons dung, acetic acid, etc.; after which they are immersed in the; solution above mentioned for a period ranging from 8 to 40- hours, accordln skins to e tanned.
The pur ose'of using the above solution is to accomp ish'theaction of tanning by means of iron alum and chrome alum, which action to the condition of'the hides or is the result of a chemical reaction between the ferrous sulfate, potassium nitrate, po-
tassium bichromate, and the organic substance of the hides or skins, andwhich action is aided by the small amount of ferric sulfate and free sulfuric acid usually present in commercial ferrous sulfate.
In the use of our process above set forth a leather of greatly increased tensile strength is produced, which leather is at the same time flexible to a degree notpresent in leather tanned by former processes. These two qualities render the leather produced by our rocess especially ap licable for the manuihcture of leather bets for power transmission purposes. v
The leather produced by our rocess also resists the action'of moisture an water containing chemicals in solution tov an unusual degree, which renders it well suited for use in ex osed positions.
n the use of our process it has been found that inferior hides, and such as are generally considered as incapable of being tanned by former processes, may by our process be successfully converted into leather.
While specific uses of the product produced by our rocesshave been. mentioned, it will of course e a preciated that the leather roduced may e used for any purpose for w ich leather is suitable. 4
\ Havin thus disclosed our invention and explaine in what manner the same is to be etters Patent:
The'method of tanning hides or skins after they have been subjected to a suitable preparatory treatment, which consists in treating them with a'solution formed from water, ferrous sulfate, potassium nitrate, and potassium bichromatein the proportion substantially as above set forth.
In witnessv whereof we have signed this specification in presence of two witnesses.
JIHACHI INOUYg. TSURUMATSU D GURA.
Witnesses:
REN YABE, UMAo ABE.
performed, we claim and desire to secure by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38407507A US877341A (en) | 1907-07-16 | 1907-07-16 | Process of tanning hides and skins. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38407507A US877341A (en) | 1907-07-16 | 1907-07-16 | Process of tanning hides and skins. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US877341A true US877341A (en) | 1908-01-21 |
Family
ID=2945786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US38407507A Expired - Lifetime US877341A (en) | 1907-07-16 | 1907-07-16 | Process of tanning hides and skins. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US877341A (en) |
-
1907
- 1907-07-16 US US38407507A patent/US877341A/en not_active Expired - Lifetime
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