US52655A - Improved process of tanning hides and skins - Google Patents
Improved process of tanning hides and skins Download PDFInfo
- Publication number
- US52655A US52655A US52655DA US52655A US 52655 A US52655 A US 52655A US 52655D A US52655D A US 52655DA US 52655 A US52655 A US 52655A
- Authority
- US
- United States
- Prior art keywords
- skins
- hides
- tanning
- improved process
- turpentine
- 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
- 210000003491 Skin Anatomy 0.000 title description 14
- 238000000034 method Methods 0.000 title description 14
- 241000779819 Syncarpia glomulifera Species 0.000 description 16
- 229940036248 Turpentine Drugs 0.000 description 16
- 239000001739 pinus spp. Substances 0.000 description 16
- 240000005368 Areca catechu Species 0.000 description 14
- 235000006226 Areca catechu Nutrition 0.000 description 14
- 241000208225 Rhus Species 0.000 description 14
- 235000014220 Rhus chinensis Nutrition 0.000 description 14
- 239000011148 porous material Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000010985 leather Substances 0.000 description 6
- 238000004040 coloring Methods 0.000 description 4
- 241000283690 Bos taurus Species 0.000 description 2
- 241000283707 Capra Species 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 238000009963 fulling Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000035943 smell Effects 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 235000013311 vegetables Nutrition 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
- C14C3/00—Tanning; Compositions for tanning
- C14C3/02—Chemical tanning
- C14C3/08—Chemical tanning by organic agents
- C14C3/10—Vegetable tanning
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
NITED STATES BARTHELEMY PIOARD, OF PARIS, FRANCE.
IMPROVED PROCESS OF TANNING HIDES AND SKINS.
To all whom it may concern:
Be it known that I, BARTHELEMY PIOARD, of Paris, in the Empire of France, have invented certain new and useful Improvements in the Process of Tanning Hides and Skins; and I hereby declare that the following is a full,clear, and exact description of the same.
My invention has for its object the complete tanning of all kinds of skins in a single day, at the sametime giving to theleather a toughness and strength superior to that of leather tanned in the ordinary manner.
The means by which this result is accomplished consists, essentially, first, in the employment of the essence of turpentine as the principal tanning agent, instead of tan-bark; second, in the use of catechu and 0t sumac as accessory agents and,third, in the movement of the skins in a falling-tun or under a fullinghammer.
To enable those skilled in the art to understand and use my invention, 1 will proceed to describe it.
When ready for tanning, the hides for stout leather, instead of being placed in pits, are put into a fnlling-tun which contains a decoction of sumac, for the purpose of opening the pores of the hides, and a decoction of catechu, in order to give to the leather the desired color. The tun is then closed hermetically and a rotary motion is given toitfor somehours, which causes the coloring-matter to thoroughly pene-. trate the pores of the hides, and prepares the pores to receive the essence of turpentine. The motion of the fulling tun is then stopped, the cover is taken off, and the essence of turpentine is poured in. The tun is then again closed and put in motion. While the hides are subjected to this constant agitation the essence of turpentine penetrates their pores, which the sumac has already opened, and which are being colored by the catechu, and acts so powerfully as a tanning agent, with all the effect of fermentation, that in a period of less than twenty-four hours the hides become thoroughly and completely tanned.
'On taking the skins out of the tun they can be washed in lye to remove the smell of the es sence of turpentine, and are afterward beaten and treated in the ordinary manner.
For tanning thin hides-such as those of the cow, calf, goat, &c.the process is essentially the same, excepting that salt is added to the decoction of sumac and catechu.
The respective proportions of the essence of turpentine and of sumac and catechu vary according to the nature of the hides and the degree of tanning and coloring required.
Excellent results are obtained with the following proportions: Hides prepared for tanning, two hundred pounds; essence of turpentine, seven pounds; sumac, ten pounds; catechu, thirty to forty pounds.
This process unites with rapidity and econmy of operation the advantage of obtaining at one and the same working all sorts of hides and leather-a result which is attained by no other known process of tanning.
Having thus described my improvements, what I claim as my invention, and desire to secure by Letters Patent, is
The process of tanning hides and skins by the employment of essence of turpentine with sumac, catechu, or other vegetable or mineral coloring essence, in combination with the movement ot the hides or skins in a fulling-tun or under a fulling-hammer, substantially as and for the purposes herein set forth.
In testimony whereof I have signed my name to this specification before two subscribing witnesses.
B. PIOARD.
Witnesses A. BLETRY, EDWARD TUcK.
Publications (1)
Publication Number | Publication Date |
---|---|
US52655A true US52655A (en) | 1866-02-13 |
Family
ID=2122200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US52655D Expired - Lifetime US52655A (en) | Improved process of tanning hides and skins |
Country Status (1)
Country | Link |
---|---|
US (1) | US52655A (en) |
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0
- US US52655D patent/US52655A/en not_active Expired - Lifetime
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