US1851763A - Process of rating hides and skins - Google Patents
Process of rating hides and skins Download PDFInfo
- Publication number
- US1851763A US1851763A US326907A US32690728A US1851763A US 1851763 A US1851763 A US 1851763A US 326907 A US326907 A US 326907A US 32690728 A US32690728 A US 32690728A US 1851763 A US1851763 A US 1851763A
- Authority
- US
- United States
- Prior art keywords
- hides
- skins
- hating
- rating
- pelts
- 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
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
- C14C1/08—Deliming; Bating; Pickling; Degreasing
Definitions
- This invention is based on the fact discovered atthe utilization of waste material from the tanyard, that the Waste ieces of animal hides, as used in large quantities for producing glue stuff, need not be submitted to the gluing process but, submitted in their natural state to a kind of automatic digestion (autolyzed) and then added to the hating liquor, produce an excellent effect for the 10 obtaining of the pelts previous to the dressing.
- the self digestion and the extremely rich bacteria ac tivity are interrupted, and after preserving with toluol or by drying for instance with wood dust, the bacteria are separated in the usual manner from their ferments, the required hating strength is adjusted and before the utilization tested as regards its effort.
- Ewample 1 5 Animal hides wastes (pieces) in natural conditioner from salted hides and skins, after softening same, are autolyz'ed at figures 2030 C. as described above. A reserved or dry extract obtained from a out 10 kilos pieces of hides is added to 3 litres of waterjn the tan-vat. The usual quantity of ready cleaned pelts is then put into this ready hating liquor.
- Ewample 2 Extract produced from about 3 kilos selfdigested glue-stuff and tested as to the desired hating strengthis added to about 600 lit'ls of hating water together with the usual quantity of deliming material such as ammonia.- salts or organic acids. The ready pelts are. then put into this hating liquor.
- deliming material such as ammonia.- salts or organic acids.
- the process of hating hides and skins which comprises subjecting the hides and 5 skins to the action of a bating liquor having sterile self-digested hide wastes added thereto in a dry condition and other albuminous substances in natural condition.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Seasonings (AREA)
Description
Patented Mar. 29, 1932 PATENT OFFICE mm. 1mm Gonna, or wonus, exams! PROCESS OF RATING RIDES .AN'D SKINS No Drawing.
This invention is based on the fact discovered atthe utilization of waste material from the tanyard, that the Waste ieces of animal hides, as used in large quantities for producing glue stuff, need not be submitted to the gluing process but, submitted in their natural state to a kind of automatic digestion (autolyzed) and then added to the hating liquor, produce an excellent effect for the 10 obtaining of the pelts previous to the dressing.
For the production of the self digestion,-
which is carried out best at about 20 to 30 C., no addition of any ferment, commonly used for hating, is necessary, this self digestion having to be limited to the hide waste, in order to preserve its proper characteristic at the steeping and limin or hating; it must further be interrupted efore the formation 20 of ammonia and examined as regards its effect, in order that no portion of the hides and pelts be damaged. It has been ascertained that those ferments and bacteria, which split up the glue stuif, might damage 25 in the lime-pit and hating process the hides and the pelts. These ferments and bacteria in the glue stuff. must consequently be previously rendered harmless, which is effected by commonly used preserving and drying anorganic salts, e. g. sulfates and chlorides of the alkalis. After a few days the hide L wastes have hydrolyzed, so that it can be Application med December 18, 1928. Serial no. 326,907.
easily separated from the hair. The self digestion and the extremely rich bacteria ac tivity are interrupted, and after preserving with toluol or by drying for instance with wood dust, the bacteria are separated in the usual manner from their ferments, the required hating strength is adjusted and before the utilization tested as regards its effort.
Ewample 1 5 Animal hides wastes (pieces) in natural conditioner from salted hides and skins, after softening same, are autolyz'ed at figures 2030 C. as described above. A reserved or dry extract obtained from a out 10 kilos pieces of hides is added to 3 litres of waterjn the tan-vat. The usual quantity of ready cleaned pelts is then put into this ready hating liquor.
Ewample 2 Extract produced from about 3 kilos selfdigested glue-stuff and tested as to the desired hating strengthis added to about 600 lit'ls of hating water together with the usual quantity of deliming material such as ammonia.- salts or organic acids. The ready pelts are. then put into this hating liquor.
n E sample 3 tainin sterile self-digested hide wastes and other eliming materlals.
3. The process of hating hides and skins which comprises subjecting the hides and 5 skins to the action of a bating liquor having sterile self-digested hide wastes added thereto in a dry condition and other albuminous substances in natural condition.
4. The process of hitting hides and skins m which comprises subjecting the hides and ,skins to the action of a batin liquor containin sterile self-digested hi e wastes and other ydrocarb'ons in natural condition.
In testimony whereof I aflix my signature.
KARL. HERMANN GGLLEB.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US326907A US1851763A (en) | 1928-12-18 | 1928-12-18 | Process of rating hides and skins |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US326907A US1851763A (en) | 1928-12-18 | 1928-12-18 | Process of rating hides and skins |
Publications (1)
Publication Number | Publication Date |
---|---|
US1851763A true US1851763A (en) | 1932-03-29 |
Family
ID=23274252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US326907A Expired - Lifetime US1851763A (en) | 1928-12-18 | 1928-12-18 | Process of rating hides and skins |
Country Status (1)
Country | Link |
---|---|
US (1) | US1851763A (en) |
-
1928
- 1928-12-18 US US326907A patent/US1851763A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101641453A (en) | Preserve the method for rawhide and fur | |
Kesarwani et al. | A review on leather processing | |
US1851763A (en) | Process of rating hides and skins | |
US2988488A (en) | Enzymatic dehairing of hides and skins | |
US1767536A (en) | Process for dehairing hides and skins and preparing them for tanning | |
CN102224261B (en) | Methods of preserving hides | |
US2741575A (en) | Hide glue manufacture | |
US2438150A (en) | Soaking, freezing, and drying by sublimation of untanned hides | |
Procter | The making of leather | |
US1953968A (en) | Method of tanning hides and skins | |
US3551089A (en) | Ammonium zirconyl carbonate treatment of chrome-tanned leather | |
DE575218C (en) | Process for pickling hides and skins | |
US2525539A (en) | Method for preserving hides and pelts | |
DE1233530B (en) | Process for the enzymatic depilation and / or dressing of skins and pelts | |
US2805186A (en) | Method of preparing animal glue | |
di Curci | The History and Technology of Parchment Making | |
SU48993A1 (en) | The method of tanning cheese fine leather or fur | |
US50936A (en) | Improved process for tanning | |
Bennett | Animal proteins | |
Khan | Modern Technology applied in Leather Industry under Colonial Rule | |
Thakur | TECHNOLOGICAL MODIFICATIONS IN PAPER-MAKING AND TANNING INDUSTRY AND THEIR IMPACT IN COLONIAL PUNJAB | |
US51762A (en) | Improved process for tanning | |
US221219A (en) | Improvement in processes for tanning | |
GB377128A (en) | A process for the production of ferment preparations | |
US1899422A (en) | Rapid vegetable tanning process |