US1777834A - Treating of animal-skin products - Google Patents
Treating of animal-skin products Download PDFInfo
- Publication number
- US1777834A US1777834A US468124A US46812430A US1777834A US 1777834 A US1777834 A US 1777834A US 468124 A US468124 A US 468124A US 46812430 A US46812430 A US 46812430A US 1777834 A US1777834 A US 1777834A
- Authority
- US
- United States
- Prior art keywords
- slurry
- animal
- treating
- skin products
- latex
- 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
- 239000002002 slurry Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 14
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 12
- 229920000126 latex Polymers 0.000 description 9
- 239000004816 latex Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 235000019270 ammonium chloride Nutrition 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000835 fiber Substances 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 239000003755 preservative agent Substances 0.000 description 3
- 230000002335 preservative effect Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 244000286663 Ficus elastica Species 0.000 description 1
- 239000000899 Gutta-Percha Substances 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 240000000342 Palaquium gutta Species 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 244000001591 balata Species 0.000 description 1
- 235000016302 balata Nutrition 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229920000588 gutta-percha Polymers 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L89/00—Compositions of proteins; Compositions of derivatives thereof
- C08L89/04—Products derived from waste materials, e.g. horn, hoof or hair
- C08L89/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin
Definitions
- This invention relates to a process of treating animal skin materials or animal skin products, as distinguished from the treatment ofwool, hair, -etc., and has for one of its-objects the provision of a process adapted for utilizing untanned hides and scraps and cuttings therefrom, whereby such ma terials may be converted into a useful and valuable product which in appearance, fi-
- a mineral tanning agent afiber lubricant and a suitable binding material containing a Water insoluble binder, the binding material being miscible with Water prior to the coagulation ofthe binder, for example indiarubber latex", gutta percha latex, balata latex, or the like, as obtained from trees or plants and which may have been preserved by ammonia or any other suitable alkaline preserving material.
- a suitable binding material containing a Water insoluble binder for example indiarubber latex", gutta percha latex, balata latex, or the like, as obtained from trees or plants and which may have been preserved by ammonia or any other suitable alkaline preserving material.
- a synthetic latex or other binding material containing a water insoluble binder and which is in suitable condition for incorporation in the slurry may be substituted for the latices above mentioned.
- a mineral tanning agent or material I can employ particularly those containing chromium.
- the slurry is then caused to flow upon a perforated support such as a Wire gauze and the liquid of the slurry abstracted so that a sheet of fibers is obtained.
- This material is then rolled and pressed and subjected to theusual finishing operations employed in the finishing of natural leathers.
- What I claim is 1.
- the process which comprises adding a mineral tanning agent and a grease to a flowing aqueous slurry containing the fibrous portions of untanned animal skin products in suspension, adding ammonium chloride, a Water insoluble binder and a preservative therefor to the slurry, and abstracting the liquid of the slurry.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Dermatology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Description
Patented Oct. 7, 1930 UNITED STATES.
PATENT] OFFICE ANTONIO FERRETTI, OF MILAN, ITALY, ASSIGN'OB TO SOCIET'A INVENZIONI BREVETTI ANONIMA TORINO, OF TUBIN, IT ALY TREATING OF ANIMAL-SKIN PRODUCTS No Drawing. Original application filed May 24, 1929, Serial No. 365,780, and in Italy July 14, 1928.
Divided and this application filed fluly 15, 1930. Serial No. 468,124.
' This invention relates to a process of treating animal skin materials or animal skin products, as distinguished from the treatment ofwool, hair, -etc., and has for one of its-objects the provision of a process adapted for utilizing untanned hides and scraps and cuttings therefrom, whereby such ma terials may be converted into a useful and valuable product which in appearance, fi-
brous texture and flexibility resembles natural leather.
It will be apparent that my invention is of great economlcal value in that it salvages or utilizes material which heretofore generally has been converted into glues or fertilizers, or simply thrown awa In the practice of my invention the untanned fibers of the material being treated are intimately admixed with an aqueous medium until a thin flowing slurry of the fibers in aqueous suspension is obtained. The proportion of aqueous medium to the material being-treated is necessarily large so as to obtain the desired-thin flowing mass or slurry. i
To this slurry I add a mineral tanning agent, afiber lubricant and a suitable binding material containing a Water insoluble binder, the binding material being miscible with Water prior to the coagulation ofthe binder, for example indiarubber latex", gutta percha latex, balata latex, or the like, as obtained from trees or plants and which may have been preserved by ammonia or any other suitable alkaline preserving material.
' A synthetic latex or other binding material containing a water insoluble binder and which is in suitable condition for incorporation in the slurry may be substituted for the latices above mentioned.
When latex is used as a binding material I-avoid the vulcanizing treatment otherwise required for preserving the latexby adding a vegetable tannin such as those of the pyrogallic series, more particularlysumac, to the slurry, this it being understood in addition to. the .mineral tanning agent above mentioned. As a mineral tanning agent or material I can employ particularly those containing chromium.
such as ammonium chloride or the like, the
addition of this material promoting the extracting of the liquid of the slurry and being of material advantage in the making of sheets of substantial thickness. 'In other.
words, the addition of ammonium chloride directly after the latex and before abstracting the liquid of the slurry improves the process and the product.
The slurry is then caused to flow upon a perforated support such as a Wire gauze and the liquid of the slurry abstracted so that a sheet of fibers is obtained. This material is then rolled and pressed and subjected to theusual finishing operations employed in the finishing of natural leathers.
I It is to be understood that the amount of "ammonium chloride employed will vary depending upon the material being treated and also depending upon the separation or abstracting of the liquid of the slurry that I a to the slurry.
.This application is a division of my copending application Serial N0. 365,780, filed May 24, 1929.
What I claim is 1. The process which comprises adding a mineral tanning agent and a grease to a flowing aqueous slurry containing the fibrous portions of untanned animal skin products in suspension, adding ammonium chloride, a Water insoluble binder and a preservative therefor to the slurry, and abstracting the liquid of the slurry.
2-. The process which comprises adding a mineral tanning agent and a grease to a-flowing aqueous slurry containing the fibrous portions of untanned animal skin products in suspension, adding ammonium chloride, rubber latex and a preservative for the rubber of the latex to the slurry, and abstracting the liquid of the slurry.
3. The process which comprises adding a mineral tanning agent and a grease to a flowing aqueous slurry containing the fibrous portions of untanned animal skin products in suspension, adding ammonium chloride and thereupon a water insoluble binder and a preservative therefor to the slurry, and abstracting the liquid of the slurry.
This specification signed this 21st day of June, 1930.
ANTONIO FERRETTI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US468124A US1777834A (en) | 1929-05-24 | 1930-07-15 | Treating of animal-skin products |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US365780A US1777831A (en) | 1928-07-14 | 1929-05-24 | Treating of animal-skin products |
| US468124A US1777834A (en) | 1929-05-24 | 1930-07-15 | Treating of animal-skin products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1777834A true US1777834A (en) | 1930-10-07 |
Family
ID=27003081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US468124A Expired - Lifetime US1777834A (en) | 1929-05-24 | 1930-07-15 | Treating of animal-skin products |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1777834A (en) |
-
1930
- 1930-07-15 US US468124A patent/US1777834A/en not_active Expired - Lifetime
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