US3850575A - Tanning composition and process - Google Patents
Tanning composition and process Download PDFInfo
- Publication number
- US3850575A US3850575A US00322815A US32281573A US3850575A US 3850575 A US3850575 A US 3850575A US 00322815 A US00322815 A US 00322815A US 32281573 A US32281573 A US 32281573A US 3850575 A US3850575 A US 3850575A
- Authority
- US
- United States
- Prior art keywords
- composition
- tanning
- skin
- pelt
- tanning composition
- 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 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000010425 asbestos Substances 0.000 claims abstract description 11
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 9
- HJTAZXHBEBIQQX-UHFFFAOYSA-N 1,5-bis(chloromethyl)naphthalene Chemical compound C1=CC=C2C(CCl)=CC=CC2=C1CCl HJTAZXHBEBIQQX-UHFFFAOYSA-N 0.000 claims abstract description 8
- GOLCXWYRSKYTSP-UHFFFAOYSA-N arsenic trioxide Inorganic materials O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 claims abstract description 8
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002798 polar solvent Substances 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 8
- 239000003242 anti bacterial agent Substances 0.000 claims description 5
- 239000011736 potassium bicarbonate Substances 0.000 claims description 5
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 5
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 5
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- HCJLVWUMMKIQIM-UHFFFAOYSA-M sodium;2,3,4,5,6-pentachlorophenolate Chemical group [Na+].[O-]C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl HCJLVWUMMKIQIM-UHFFFAOYSA-M 0.000 claims description 5
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 4
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 4
- 235000011181 potassium carbonates Nutrition 0.000 claims description 4
- 235000017550 sodium carbonate Nutrition 0.000 claims description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- UIIMBOGNXHQVGW-UHFFFAOYSA-M sodium bicarbonate Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 7
- 230000002411 adverse Effects 0.000 description 5
- 239000003350 kerosene Substances 0.000 description 4
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 4
- 235000017557 sodium bicarbonate Nutrition 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000008953 bacterial degradation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 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
-
- 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
Definitions
- ABSTRACT A tanning composition and process, the composition including a salt of carbonic acid, arsenic trioxide, a
- the invention relates to the tanning of hides and skins and more particularly to a novel tanning composition of matter which is both easy to use and effective in tanning hides and a process for using same.
- Liquid tanning compositions are also used with difficulty. Many liquid tanning compositions are often very unstable and vital components rapidly precipitate making a suitable uniform tan difficult if not impossible. Frequently, liquid tanning compositions must be freshly prepared and used with costly and complicated machinery to obtain an effective tan. Machine tanning often undesirably adversely affects the quality of furbearing pelts and is most undesirable when the tanned pelt is to be taxidermically restored.
- the present invention provides a tanning composition containing ground asbestos'which prevents premature separation of solids from solution and at the same time gives the tanning composition a texture which accommodates facile handling.
- the composition and method allow pelts to be tanned without injury even though the tanning composition remains on the pelt for an extended period of time.
- the presently preferred tanning composition is a combination of arsenic trioxide and salt of carbonic acid in a polar solvent such as methanol. This portion of the composition is effective to tan most pelts but it is often desirable to simultaneously cleanse the flesh side of the pelt without damage thereto. Accordingly, a quantity of kerosene is added to facilitate cleansing fatty material from the pelt in concert with the tanning process. Any suitable organic cleaner that will not interfere with the tanning process could be used. It has been found that the solids in this preparation can be maintained essentially uniformly disbursed by mixing sufficient ground asbestos to give the composition a viscous, paste-like consistency. The asbestos is resistent to degradation by the chemical components of the composition and lends consistency to the composition without significantly adversely affecting the tanning process.
- a suitable anti-bacterial agent such as sodium pentachlorophenol is used to minimize the bacterial degradation of the pelt.
- a suitable conventional coloring agent it is often desirable to use a suitable conventional coloring agent to finish the tanned pelt.
- EXAMPLE 3 A composition was prepared as in Example 1. except that the sodium bicarbonate was increased to 230 pounds. In this example, the tan of the pelt was not as advanced after 24 hours as 'was evident in the Example 1 composition.
- EXAMPLE 4 A composition was prepared as in Example 1 except that sodium carbonate was substituted for sodium 'bicarbonate. The tanning ability of the composition was somewhat adversely affected.
- EXAMPLE 5 A composition was prepared as in Example 1 except that potassium bicarbonate .was substituted for sodium bicarbonate. The tanning ability of the composition was somewhat adversely affected.
- EXAMPLE 6 A series of compositions having the proportions set forth in Example 1 were prepared except that the EXAMPLE 7 It was found that the amount of kerosene set forth in Table 1 could be varied in amounts from at least as low as 30 quarts to at least as high as 60 quarts without adversely affecting the tanning ability of the formulation. It was observed, however, that if the amount of kerosene was altered substantially, the amount of ground asbestos required corresponding adjustment to effect desirable viscosity.
- the tanning composition set forth above is placed on the flesh side of a pelt by spreading the composition in a thin layer over the pelt.
- the thickness of the composition is less than one-quarter inch.
- the composition is allowed to remain on the pelt preferably until the composition has dried to crystals. Normally, drying will take place in 24 to 48 hours. It has been found, however, that tanning may be complete before the composition is completely dry.
- the crystallized composition is preferably removed from the skin by abrading with an abrasive such as sandpaper. As the composition is removed, the pelt is tanned and completely freed of fatty material. Moreover, the abrasive imparts a highly desirable softness into the pelt.
- the tanning composition When the tanning composition has been removed, it is sometimes desirable to treat the pelt with conventional oil or the like which further softens the pelt and may preserve the pelt from drying. Also, if desired, the pelt can be colored at this point in the process.
- conventional coloring material may be dissolved with the sodium pentachlorophenol in methanol as described in Example 1. The color will then be imparted to the pelt upon application of the tanning composition.
- a tanning composition comprising arsenic trioxide; a polar solvent; a liquid organic cleanser and ground asbestos together with a salt of carbonic acid selected from the group consisting of sodium carbonate, sodium bicarbonate, potassium carbonate and potassium bicarbonate.
- a tanning composition as defined in claim 1 further comprising an anti-bacterial agent.
- a tanning composition as defined in. claim 2 wherein said anti-bacterial agent is sodium pentachlorophenol.
- a process for tanning a skin comprising:
- tanning composition comprising arsenic trioxide, a polar solvent, a liquid organic cleanser and ground asbestos and a salt of carbonic acid selected from the group consisting of sodium carbonate, sodium bicarbonate, potassium carbonate and potassium bicarbonate;
- a method of tanning a skin as defined in claim 4 further comprising treating the skin with oil by rubbing oil on the tanned surface.
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)
Abstract
A tanning composition and process, the composition including a salt of carbonic acid, arsenic trioxide, a polar solvent and a liquid organic cleanser all mixed with sufficient ground asbestos to give a spreadable texture to the composition. The process includes placing the described tanning composition on the flesh side of the skin and allowing the composition to remain until dry or crystallized whereupon the dry composition is removed by abrading.
Description
Larsen Nov. 26, 1974.
[ TANNING COMPOSITION AND PROCESS [76] Inventor: Reid S. Larsen, 762 S. 850 East,
Bountiful, Utah 84010 [22] Filed: Jan. 11, 1973 [21] Appl. No; 322,815
[52] US. Cl, 8/94.l9 R, 8/94.]8 [51] Int. Cl. C140 3/02, C140 3/04 [58] Field of Search 8/94.18, 94.19 R, 94.22
[56] References Cited UNITED STATES PATENTS 110,562 12/1870 Fuller et al. 8/9422 118,746 9/1871 Rock 8/94.18 1,567,644 8/1921 Hell...'...... 8/94.19 R 3,512,918 5/1970 Endres'et al. 8/94.]9 R
OTHER PUBLlCATlONS I Chakrovorty et al., Uncommon Inorganic Tannages v01. XLII No. 1 Jan. 1958 pp. 2-10.
' Pavis; Manufacture of Leather 1885 London pp.
52-53 Journal of Society of Leather Trades Chemist.
Primary Examiner-Benjamin R. Padgett Assistant Examiner-B. Hunt Attorney, Agent, or Firm-H. Ross Workman [5 7] ABSTRACT A tanning composition and process, the composition including a salt of carbonic acid, arsenic trioxide, a
polar solvent and a liquid organic cleanser all mixed fwith sufficient ground asbestos to give a spreadable texture to the composition. The process-includes placing the described tanning composition on the flesh side of the skin and allowing the composition to remain until dryor crystallized whereupon the dry composition is removed by abrading.
5 Claims, No Drawings TANNING COMPOSITION AND PROCESS BACKGROUND 1. Field of the Invention The invention relates to the tanning of hides and skins and more particularly to a novel tanning composition of matter which is both easy to use and effective in tanning hides and a process for using same.
2. The Prior Art Numerous tanning compositions are known in the art. However, the texture of the various compositions often makes the composition extremely difficult to work with. For example, powders are uniformly applied only with great difficulty and uneven application tends to reduce the quality of the tan.
Liquid tanning compositions are also used with difficulty. Many liquid tanning compositions are often very unstable and vital components rapidly precipitate making a suitable uniform tan difficult if not impossible. Frequently, liquid tanning compositions must be freshly prepared and used with costly and complicated machinery to obtain an effective tan. Machine tanning often undesirably adversely affects the quality of furbearing pelts and is most undesirable when the tanned pelt is to be taxidermically restored.
In the treatment of hides and pelts, it is desirable to have a tanning composition which is easily applied, effects an adequate tan and will not injure the hide or pelt even though the composition is left on the pelt for an extended period of time. This present invention uniquely accommodates these desirable advantages.
BRIEF DESCRIPTION AND OBJECTS OF THE INVENTION The present invention, including composition of matter and process, provides a tanning composition containing ground asbestos'which prevents premature separation of solids from solution and at the same time gives the tanning composition a texture which accommodates facile handling. The composition and method allow pelts to be tanned without injury even though the tanning composition remains on the pelt for an extended period of time.
It is, therefore, a primary object of the present invention to provide a novel tanning composition.
. It is another primary object of the present invention to provide an improved method of tanning hides and pelts without injury thereto. 1
These and other objects and features of the present invention will become more fully apparent from the following description and appended claims.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS THE COMPOSITION The presently preferred tanning composition is a combination of arsenic trioxide and salt of carbonic acid in a polar solvent such as methanol. This portion of the composition is effective to tan most pelts but it is often desirable to simultaneously cleanse the flesh side of the pelt without damage thereto. Accordingly, a quantity of kerosene is added to facilitate cleansing fatty material from the pelt in concert with the tanning process. Any suitable organic cleaner that will not interfere with the tanning process could be used. It has been found that the solids in this preparation can be maintained essentially uniformly disbursed by mixing sufficient ground asbestos to give the composition a viscous, paste-like consistency. The asbestos is resistent to degradation by the chemical components of the composition and lends consistency to the composition without significantly adversely affecting the tanning process.
Preferably, a suitable anti-bacterial agent such as sodium pentachlorophenol is used to minimize the bacterial degradation of the pelt. Also, it is often desirable to use a suitable conventional coloring agent to finish the tanned pelt.
The following examples illustrate the invention:
EXAMPLE 1 A composition for tanning pelts was prepared having the formulation shown in Table A. I
TABLE A Ingredient Amount- Sodium bicarbonate 200 lbs Arsenic trioxide .25 lbs Sodium pentachlorophenol .375 lbs Ground asbestos 1 lb Methanol 6 quarts Kerosene 44 quarts The composition was prepared by thoroughly mixing a EXAMPLE 2 A composition was formed as described in Example 1 except that the amount of sodium bicarbonate was reduced to pounds. The pelt was adequately tanned when used as described above.
EXAMPLE 3 A composition was prepared as in Example 1. except that the sodium bicarbonate was increased to 230 pounds. In this example, the tan of the pelt was not as advanced after 24 hours as 'was evident in the Example 1 composition.
EXAMPLE 4 A composition was prepared as in Example 1 except that sodium carbonate was substituted for sodium 'bicarbonate. The tanning ability of the composition was somewhat adversely affected.
EXAMPLE 5 A composition was prepared as in Example 1 except that potassium bicarbonate .was substituted for sodium bicarbonate. The tanning ability of the composition was somewhat adversely affected.
EXAMPLE 6 A series of compositions having the proportions set forth in Example 1 were prepared except that the EXAMPLE 7 It was found that the amount of kerosene set forth in Table 1 could be varied in amounts from at least as low as 30 quarts to at least as high as 60 quarts without adversely affecting the tanning ability of the formulation. It was observed, however, that if the amount of kerosene was altered substantially, the amount of ground asbestos required corresponding adjustment to effect desirable viscosity.
THE PROCESS The tanning composition set forth above is placed on the flesh side of a pelt by spreading the composition in a thin layer over the pelt. Preferably, the thickness of the composition is less than one-quarter inch. The composition is allowed to remain on the pelt preferably until the composition has dried to crystals. Normally, drying will take place in 24 to 48 hours. It has been found, however, that tanning may be complete before the composition is completely dry.
The crystallized composition is preferably removed from the skin by abrading with an abrasive such as sandpaper. As the composition is removed, the pelt is tanned and completely freed of fatty material. Moreover, the abrasive imparts a highly desirable softness into the pelt.
When the tanning composition has been removed, it is sometimes desirable to treat the pelt with conventional oil or the like which further softens the pelt and may preserve the pelt from drying. Also, if desired, the pelt can be colored at this point in the process.
Where coloration of the pelt is desirable, conventional coloring material may be dissolved with the sodium pentachlorophenol in methanol as described in Example 1. The color will then be imparted to the pelt upon application of the tanning composition.
The invention may be embodied in'other specific forms without departing from its spirit or essential characteristics. The described embodiments are to be considered in all respects only as illustrative and not restrictive and the scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
What is claimed and desired to be secured by United States letters Patent is:
1. A tanning composition comprising arsenic trioxide; a polar solvent; a liquid organic cleanser and ground asbestos together with a salt of carbonic acid selected from the group consisting of sodium carbonate, sodium bicarbonate, potassium carbonate and potassium bicarbonate.
2. A tanning composition as defined in claim 1 further comprising an anti-bacterial agent.
3. A tanning composition as defined in. claim 2 wherein said anti-bacterial agent is sodium pentachlorophenol.
4. A process for tanning a skin comprising:
placing on the flesh side of the skin a thin layer of tanning composition comprising arsenic trioxide, a polar solvent, a liquid organic cleanser and ground asbestos and a salt of carbonic acid selected from the group consisting of sodium carbonate, sodium bicarbonate, potassium carbonate and potassium bicarbonate; 1
allowing the tanning composition to remain upon the skin until dry; and
removing the dried composition by rubbing with an abrasive.
5. A method of tanning a skin as defined in claim 4 further comprising treating the skin with oil by rubbing oil on the tanned surface.
Claims (5)
1. A TANNING COMPOSITION COMPRISING ARSENIC TRIOXIDE; A POLAR SOLVENT; A LIQUID ORGANIC CLEANSER AND GROUND ASBESTOS TOGETHER WITH A SALT OF CARBONIC ACID SELECTED FROM THE GROUP CONSISTING OF SODIUM CARBONATE, SODIUM BICARBONATE, POTASSIUM CARBONATE AND POTASSIUM BICARBONATE.
2. A tanning composition as defined in claim 1 further comprising an anti-bacterial agent.
3. A tanning composition as defined in claim 2 wherein said anti-bacterial agent is sodium pentachlorophenol.
4. A process for tanning a skin comprising: placing on the flesh side of the skin a thin layer of tanning composition comprising arsenic trioxide, a polar solvent, a liquid organic cleanser and ground asbestos and a salt of carbonic acid selected from the group consisting of sodium carbonate, sodium bicarbonate, potassium carbonate and potassium bicarbonate; allowing the tanning composition to remain upon the skin until dry; and removing the dried composition by rubbing with an abrasive.
5. A method of tanning a skin as defined in claim 4 further comprising treating the skin with oil by rubbing oil on the tanned surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00322815A US3850575A (en) | 1973-01-11 | 1973-01-11 | Tanning composition and process |
| DE19742455314 DE2455314A1 (en) | 1973-01-11 | 1974-11-22 | TANNING AGENTS AND TANNING METHODS |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00322815A US3850575A (en) | 1973-01-11 | 1973-01-11 | Tanning composition and process |
| DE19742455314 DE2455314A1 (en) | 1973-01-11 | 1974-11-22 | TANNING AGENTS AND TANNING METHODS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3850575A true US3850575A (en) | 1974-11-26 |
Family
ID=25768004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00322815A Expired - Lifetime US3850575A (en) | 1973-01-11 | 1973-01-11 | Tanning composition and process |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3850575A (en) |
| DE (1) | DE2455314A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4398911A (en) * | 1979-07-26 | 1983-08-16 | Rohm Gmbh | Tanning method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US110562A (en) * | 1870-12-27 | Improvement in treating hides and manufacturing leather | ||
| US118746A (en) * | 1871-09-05 | Improvement in processes of treating and preserving hides | ||
| US1567644A (en) * | 1921-08-29 | 1925-12-29 | Hell Johannes | Tanning of skins and hides |
| US3512918A (en) * | 1965-07-02 | 1970-05-19 | Basf Ag | Tanning process |
-
1973
- 1973-01-11 US US00322815A patent/US3850575A/en not_active Expired - Lifetime
-
1974
- 1974-11-22 DE DE19742455314 patent/DE2455314A1/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US110562A (en) * | 1870-12-27 | Improvement in treating hides and manufacturing leather | ||
| US118746A (en) * | 1871-09-05 | Improvement in processes of treating and preserving hides | ||
| US1567644A (en) * | 1921-08-29 | 1925-12-29 | Hell Johannes | Tanning of skins and hides |
| US3512918A (en) * | 1965-07-02 | 1970-05-19 | Basf Ag | Tanning process |
Non-Patent Citations (2)
| Title |
|---|
| Chakrovorty et al., Uncommon Inorganic Tannages Vol. XLII No. 1 Jan. 1958 pp. 2 10. * |
| Pavis; Manufacture of Leather 1885 London pp. 52 53 Journal of Society of Leather Trades Chemist. * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4398911A (en) * | 1979-07-26 | 1983-08-16 | Rohm Gmbh | Tanning method |
| US4443221A (en) * | 1979-07-26 | 1984-04-17 | Rohm Gmbh | Tanning method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2455314A1 (en) | 1976-05-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5567205A (en) | Wet treatment of leather hides | |
| US3850575A (en) | Tanning composition and process | |
| DE2134070C3 (en) | Powdered mixtures for tanning animal hides or retanning leather | |
| EP0711842B1 (en) | Leather tanning agents and actuator for dyes | |
| DE4142318C2 (en) | Use of fatty acid conversion products in leather and fur greasing agents and agents for greasing leather and fur skins | |
| US1860651A (en) | Waterproofed leather and composition for treating same | |
| DE557203C (en) | Process for the pretreatment and tanning of animal hides and skins | |
| US57165A (en) | Improvement in stuffing and currying leather | |
| EP4192984B1 (en) | Retanning and fatliquoring compositions comprising a hemp oil derivative | |
| US680222A (en) | Tanning compound. | |
| US555537A (en) | Compound for dressing leather | |
| US211532A (en) | Improvement in compositions for removing hair and grease from hides | |
| US229928A (en) | Tanning process | |
| US1117912A (en) | Manufacture of leather. | |
| DE10028142A1 (en) | Prevention of chromium (VI) formation during storage of tanned leather and pelts by pickling in presence of antioxidant prior to chrome tanning | |
| US1230266A (en) | Process for tanning of fish-skins or the like. | |
| US1256974A (en) | Process of tanning fish-skins. | |
| US58643A (en) | Improved process for tanning | |
| US721553A (en) | Treating hides or skins. | |
| US490791A (en) | Process of unhairing hides | |
| GB2055894A (en) | Tanning skins | |
| US349589A (en) | Tanning process | |
| DE600727C (en) | Process for the production of mineral-tanned leather | |
| US451427A (en) | Dressing for leather articles | |
| US825852A (en) | Process of tanning. |