US118177A - Improvement in manufacture of paper and paper-pulp - Google Patents
Improvement in manufacture of paper and paper-pulp Download PDFInfo
- Publication number
- US118177A US118177A US118177DA US118177A US 118177 A US118177 A US 118177A US 118177D A US118177D A US 118177DA US 118177 A US118177 A US 118177A
- Authority
- US
- United States
- Prior art keywords
- paper
- pulp
- manufacture
- improvement
- bark
- 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
- 238000004519 manufacturing process Methods 0.000 title description 4
- 229920001131 Pulp (paper) Polymers 0.000 title 2
- 238000000034 method Methods 0.000 description 10
- 239000003513 alkali Substances 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 239000003518 caustics Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 239000012261 resinous substance Substances 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 229930013930 alkaloids Natural products 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- 230000000717 retained Effects 0.000 description 2
- 239000002023 wood 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
Landscapes
- Paper (AREA)
Description
I UNITE T JOHN M. ALLEN, OF MARION, MASSACHUSETTS.
Specification forming part of Letters Patent No. ll 8,l77, dated August 22, 1871.
To all whom it may concern:
Be it known that I, JOHN M. ALLEN, of Marion, in the county of Plymouth and State of Massachusetts, have invented a certain new and useful Improvement in the Manufacture of Pulp and Paper; and I do hereby declare the following to be afull, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to practice my invention.
The said invention consists in a pulp or paper made of the bark of coniferous trees, from which the resinous substances therein contained have been wholly or almost wholly extracted. It also consists in the process of extracting the resinous substances from the said bark, as hereinafter described.
The mode of practicing the said invention is as follows: I take the bark of the-coniferous tree and submit it to the action of a boiling solution of caustic alkali, say at a strength of from 6 to 10 Baum, in a digester or in anopen boiler. This process should be continued for about six to nine hours when a closed boiler is used, and longer if carried on in an open vessel. At the end of this time the resin and other intercellulose are entirely extracted from the fiber or nearly so.
Instead of caustic alkali, other alkalies or alkaloids, such as carbonate of soda, carbonate of ammonia, carbonate of potash, 850., may be used but in this case the process must be continued for several hours longer.
The bark may also (especially when an open vessel is used for the alkaline treatment) he soaked and reduced to pulp by machinery in the first instance, so as to separate the fibers before subjecting them to the alkali.
The pulp can be washed and at once made into a strong serviceable paper without bleaching, or it may be bleached in any well-known way.
I am aware that paper has heretofore been made from the wood of the pine and fir. Such pulp or paper, therefore, I do not claim. Neither do I claim a pulp or paper made partly of the bark of coniferous trees in which the resin is retained, such as that made by the process patented to (1. C. Hall, February 20, 1855; but
What I claim as my invention, and desire to secure by Letters Patent of the United States, is-
1. Pulp or paper made of the bark of coniferous trees from which the resin has been wholly or almost wholly extracted.
2. Extracting the resin from the bark of coniferous trees by the process above described. JOHN M. ALLEN.
WVitnesses CHAS. PARHAM, WM. W. HARDING.
QFFIGE. A
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US118177A true US118177A (en) | 1871-08-22 |
Family
ID=2187634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US118177D Expired - Lifetime US118177A (en) | Improvement in manufacture of paper and paper-pulp |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US118177A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2574784A (en) * | 1944-12-26 | 1951-11-13 | Weyerhaeuser Timber Co | Phenolic adhesive and method of bonding wood plies |
| US2574803A (en) * | 1947-03-29 | 1951-11-13 | Weyerhaeuser Timber Co | Method of bonding plywood, an adhesive therefor and a process of making it |
| US2574785A (en) * | 1951-11-13 | Ingredient of adhesives and a | ||
| US2772981A (en) * | 1953-03-17 | 1956-12-04 | Nat Starch Products Inc | Paper coating composition |
-
0
- US US118177D patent/US118177A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2574785A (en) * | 1951-11-13 | Ingredient of adhesives and a | ||
| US2574784A (en) * | 1944-12-26 | 1951-11-13 | Weyerhaeuser Timber Co | Phenolic adhesive and method of bonding wood plies |
| US2574803A (en) * | 1947-03-29 | 1951-11-13 | Weyerhaeuser Timber Co | Method of bonding plywood, an adhesive therefor and a process of making it |
| US2772981A (en) * | 1953-03-17 | 1956-12-04 | Nat Starch Products Inc | Paper coating composition |
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