US602800A - Max paul oscar dickhuth - Google Patents
Max paul oscar dickhuth Download PDFInfo
- Publication number
- US602800A US602800A US602800DA US602800A US 602800 A US602800 A US 602800A US 602800D A US602800D A US 602800DA US 602800 A US602800 A US 602800A
- Authority
- US
- United States
- Prior art keywords
- cane
- ratan
- oscar
- dickhuth
- silicious
- 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
- 241000501754 Astronotus ocellatus Species 0.000 title description 4
- 241000209134 Arundinaria Species 0.000 description 34
- KRHYYFGTRYWZRS-UHFFFAOYSA-N HF Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 22
- 239000011248 coating agent Substances 0.000 description 20
- 238000000576 coating method Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 18
- 239000000243 solution Substances 0.000 description 14
- 239000000126 substance Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000003513 alkali Substances 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 240000004155 Saccharum barberi Species 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010297 mechanical methods and process Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 210000003298 Dental Enamel Anatomy 0.000 description 2
- 101710013115 HAL Proteins 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002238 attenuated Effects 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 231100001004 fissure Toxicity 0.000 description 2
- 230000000266 injurious Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes
Definitions
- My invention relates to anim proved process of removing the silicious coating or enamel from ratan or Indian cane, for which Letters Patent have been granted in Great Britain, No. 6,799, of April 2, 1895; in France, No. 249,668, of December 10,1895; in Austria, No. 4,893/46, of December 5, 1896; in Belgium, No. 117,026, of August 81, 1895, and in Hungary, No. 7,822, of November 17, 1896.
- the cane material used extensively in the manufacture of chairs and obtained in the tropics from cane-plants is naturally covered by a thick highly-polished crust of silicious material of great hardness.
- this crust has to be removed, because the ratan cannot be satisfactorily bleached and dyed so longas the crust remains.
- This removal of the silicious coating of the cane has been accomplished heretofore in most cases manually by the natives in the tropics.
- this mechanical method of removing the silicious coating only one method has been heretofore followed namely, one in which the ratan is subjected to a treatment with alkaline lyes of different compositions.
- My improved process consists in treating the raw cane, preferably before splitting, with an aqueous solution of about one percent. of hydrofluoric acid with which the cane material is digested for several days until its silicious covering has completely disappeared. Thereafter the ratan or cane is rinsed for several hours in flowing water. It is then treated in an alkaline bathfor example, with a soda solution of about one per cent-and finally again rinsed in water. I find that by means of this treatment the silicious coating of the cane is completely removed and that the fiber is not injured and the cane is not discolored.
Description
UNITED STATES union.
PATENT MAX PAUL OSCAR DIOKHUTH, OF I-IARBURG-ON-THE-ELBE, GERMANY, ASSIGNOR TO THE FIRM OF H. O. MEYER, J Ba, OF SAME PLACE.
TREATING RATAN.
SPECIFICATION forming part of Letters Patent No. 602,800, dated April 19, 1898;
Application filed July 16, 18% Serial No. 556,545. p im n il Patented in England April 2, 1895, No. 6,799; in Belgium A t 31,1895,N0.1l7,026 in France D c m er 10,1895,N0.249,668; in Hungary November 1'7, 1896,1io. 7,822,
and in Austria December 5, 1896, No. 46/4393.
To all whom it may concern.-
Be it known that I, MAX PAUL OSCAR DICK- HUTH, doctor of philosophy, a subject of the King of Prussia, German Emperor, and a resident of I-Iarburg-on-the-Elbe,in the Province of Hanover, Germany, have invented certain new and useful Improvements in Treating Ratan, of which the following is a specification.
My invention relates to anim proved process of removing the silicious coating or enamel from ratan or Indian cane, for which Letters Patent have been granted in Great Britain, No. 6,799, of April 2, 1895; in France, No. 249,668, of December 10,1895; in Austria, No. 4,893/46, of December 5, 1896; in Belgium, No. 117,026, of August 81, 1895, and in Hungary, No. 7,822, of November 17, 1896.
The cane material used extensively in the manufacture of chairs and obtained in the tropics from cane-plants is naturally covered by a thick highly-polished crust of silicious material of great hardness. For many purposes in the use of ratan, especially for the production of wicker-chairs, this crust has to be removed, because the ratan cannot be satisfactorily bleached and dyed so longas the crust remains. This removal of the silicious coating of the cane has been accomplished heretofore in most cases manually by the natives in the tropics. Besides this mechanical method of removing the silicious coating only one method has been heretofore followed namely, one in which the ratan is subjected to a treatment with alkaline lyes of different compositions.
The objection to the mechanical process of removing the silicious coating of ratan is that it is tedious and difficult to accomplish thoroughly. The objections to the use of alkaline lyes for the purpose of removing the silicious coating are several. By this treatment of the ratan the ligneous substance forming the core of the ratan is modified, so that its most valuable properties are lost. The physical change wrought in the wood fiber results in a certain degree of ductility which is very injurious, especially when the ratan is used for the caning of chairs. Cane chair-bottoms of this kind will gradually bulge out when used and will not return to their original shape. At the same time the surface which is obtained by the alkaline treatment is dark-colored, so that somewhat complicated processes have to be resorted to in order to bleach the ratan after the alkaline treatment to make it capable of receiw in g a uniform dye. Still another difficulty in the use of the alkaline process heretofore attempted in removing the crust of ratan is that by means of this treatment the surface of the ratau is covered with fine fissures, which obstruct the uniform absorption of dyeing substances and make the cane very liable to retain dust and dirt, and therefore comparatively unsuitable for use in furniture.
It is the object of this invention to obviate the difficulties referred to by a chemical treatment which is thorough and expeditious and which does not in any wayinjure the fiber of the cane.
My improved process consists in treating the raw cane, preferably before splitting, with an aqueous solution of about one percent. of hydrofluoric acid with which the cane material is digested for several days until its silicious covering has completely disappeared. Thereafter the ratan or cane is rinsed for several hours in flowing water. It is then treated in an alkaline bathfor example, with a soda solution of about one per cent-and finally again rinsed in water. I find that by means of this treatment the silicious coating of the cane is completely removed and that the fiber is not injured and the cane is not discolored.
While I have set forth the steps of the process which I prefer to use, I do not wish to be limited to this specific process nor to the exact strength of the solution of hydrofluoric acid which I have mentioned. I believe that it is new with me to use a Weak solution of hydrofluoric acid to dissolve and remove the silicious coating of Indian cane without separating or injuring the fiber of the cane and without discoloration thereof.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- action of a weak aqueous solution of an alkali, and finally Washing itin Water, sub.- stantially as described.
3. The herein-described process of removing the silicious coating of ratan, which con:- sists in subjecting the cane to the action of a weak solution of hydrofluoric acid, substantially as described.
4. The herein-described process of removmg the silicious coating from cane or ratan which consists in subjecting the cane successively to the actions of weakened solutions of hydrofluoric acid and of an alkali, substantially as described.
5. The process of removing the silicio'uszg coating from cane or ratan which consists in subjecting the cane successively to an attenuated solution of hydrofluoric acid and a weak solution of an alkali the said chemicals being removed from the cane by washing the same in water, substantially as described.
In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 2d day of J uly 1895.
MAX PAUL OSCAR DIGKHUTH.
Witnesses;
ALEXANDER SPEOKS, JULIUS STUOKENBERG.
Publications (1)
Publication Number | Publication Date |
---|---|
US602800A true US602800A (en) | 1898-04-19 |
Family
ID=2671432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US602800D Expired - Lifetime US602800A (en) | Max paul oscar dickhuth |
Country Status (1)
Country | Link |
---|---|
US (1) | US602800A (en) |
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0
- US US602800D patent/US602800A/en not_active Expired - Lifetime
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