US323771A - Manufacture of paper-pulp - Google Patents
Manufacture of paper-pulp Download PDFInfo
- Publication number
- US323771A US323771A US323771DA US323771A US 323771 A US323771 A US 323771A US 323771D A US323771D A US 323771DA US 323771 A US323771 A US 323771A
- Authority
- US
- United States
- Prior art keywords
- pulp
- paper
- manufacture
- woods
- wood
- 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 14
- 229920001131 Pulp (paper) Polymers 0.000 title description 12
- 239000000835 fiber Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 12
- 239000000126 substance Substances 0.000 description 12
- 239000002023 wood Substances 0.000 description 12
- 235000013311 vegetables Nutrition 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 241000219495 Betulaceae Species 0.000 description 4
- 241001070941 Castanea Species 0.000 description 4
- 235000014036 Castanea Nutrition 0.000 description 4
- 241000219000 Populus Species 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 230000001112 coagulant Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 241000219357 Cactaceae Species 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 210000003414 Extremities Anatomy 0.000 description 2
- 240000007049 Juglans regia Species 0.000 description 2
- 235000009496 Juglans regia Nutrition 0.000 description 2
- 241000218657 Picea Species 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000209504 Poaceae Species 0.000 description 2
- 235000016976 Quercus macrolepis Nutrition 0.000 description 2
- 244000305267 Quercus macrolepis Species 0.000 description 2
- 240000000111 Saccharum officinarum Species 0.000 description 2
- 235000007201 Saccharum officinarum Nutrition 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 235000018185 birch Nutrition 0.000 description 2
- 235000018212 birch Nutrition 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000346 nonvolatile oil Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000028327 secretion Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 235000020234 walnut Nutrition 0.000 description 2
- 238000005406 washing Methods 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
Definitions
- the present invention relates to processes or methods of treating wood and other vegetable fiber of a peculiar chemical and mechanical constitution for the production therefrom of paper-pulp.
- Theinvention consists, principally, in fibrilizing wood and other fibers heretofore considered useless for pulping owing to the peculiarity of the cementing compound which binds the filaments together, and which, when dried and hardened, will not become soft and flexible again under ordinary treatment, and which, if made into pulp or paper, renders the fiber so brittle as to be worthless.
- woods of this character may be named oak, chestnut, birch, walnut, and ash, and other woods and shrubs, such as cottonwood, alder, cane-pole, sugar-cane, cactus, and some of the grasses.
- My invention consists in successfully fibrilizing the above-named woods and plants, and in practically overcoming the difficulties pointed out.
- the liquor may be raised to or above the boiling-point, though this is not essential.
- the last step of the process may, without detriment, be performed before the steeping or vaporizing. WVhen thus ground or softened, the mass is washed either in the original grinder or beater or in a separate vat or tub, which process works out the coagulative substances, so that the fiber, if boiled subsequently in water, alkali, or acid 'will not set or become hard or brittle, but may be ICO tively nonvolatile oil made from animal, vegetable, or mineral secretions. This sizing is applied in the usual way.
- I clai1n 1 In the manufacture of pulp or paper stock from woods having the characteristics specified, the improvement consisting in slowly steaming or vaporizing the same at a suitable stage in the process, and then working into pulp or paper in any ordinary way, substantially as described.
Description
PATENT STEPHEN M. ALLEN, OF DUXBUBY, MASSACHUSETTS.
MANUFACTURE OF PAPER-PULP.
SPECIFICATION forming part of Letters Patent No. 323,771, dated August 4, 1885.
Application filed April 6, 1885.
To all whom, it may concern.-
Be it known that I, STEPHEN M. ALLEN, of Duxbury, in the county of Plymouth and State of Massachusetts, have invented a new and useful Improvement in the Manufacture of Paper-Pulp, which improvement is fully set forth in the following specification.
The present invention relates to processes or methods of treating wood and other vegetable fiber of a peculiar chemical and mechanical constitution for the production therefrom of paper-pulp.
Theinvention consists, principally, in fibrilizing wood and other fibers heretofore considered useless for pulping owing to the peculiarity of the cementing compound which binds the filaments together, and which, when dried and hardened, will not become soft and flexible again under ordinary treatment, and which, if made into pulp or paper, renders the fiber so brittle as to be worthless.
Use has been made heretofore of both resinous and non-resinous woods in the manufacture of ground wood-pulp, and I have already obtained a number of patents relating to such manufacture. The selections of resinous woods for white paper has almost entirely been confined to spruce and pine, while those nourished by acidulated sap have in like manner been confined to poplar wood. There is a class of woods lying between these differing both in chemical and mechanical construction of fiber, which practically belongs to neither of the before-named classes, and which has never been used to any extent for crushed or ground pulp, for the reason that they could not be practically fibrilized under any ordinary process. The sap or flowing juices of such woods partake of what is equivalent to an albuminous character, which, when evaporated, leave the fiber hard and brittle, and a substance in some respects similar to resin, yet not partaking of the same chemical constituents, is deposited between the fibers. This brings the wood into such condition that it cannot be ground into pulp without flowing and rendering it unfit for paper on account of its coarse, brittle character. If steamed or cooked without proper preparation and care this substance becomes coagulated and more brittle than be- (No specimens.)
fore, while if treated simply'with cold water it does not soften or dissolve. Among the woods of this character may be named oak, chestnut, birch, walnut, and ash, and other woods and shrubs, such as cottonwood, alder, cane-pole, sugar-cane, cactus, and some of the grasses.
My invention consists in successfully fibrilizing the above-named woods and plants, and in practically overcoming the difficulties pointed out.
In order to explain the invention and the manner of carrying the same into effect, I will describe its application to one of these woods which is very common in the United States. I take, for example, the chestnut tree, using both limbs and bark, if desired, and reduce the same to convenient lengths and size for use, generally removing the ross or fiberless part of the bark by hand or proper machinery. I "first properly prepare the wood by splitting, crushing between rolls or hammers, tearing or stripping the same longitudinally, or chipping or cutting diagonally across the line of the layers and fibers of the stick, as described in previous patents issued to me. I then slowly vaporize or steep the same in water, acids, or alkalies, and sometimes ferment it. After this operation has continued a sufficient time the liquor may be raised to or above the boiling-point, though this is not essential. I then crush, grind, beat, and pulp the mass in any well-known way until fit for final use. The last step of the process may, without detriment, be performed before the steeping or vaporizing. WVhen thus ground or softened, the mass is washed either in the original grinder or beater or in a separate vat or tub, which process works out the coagulative substances, so that the fiber, if boiled subsequently in water, alkali, or acid 'will not set or become hard or brittle, but may be ICO tively nonvolatile oil made from animal, vegetable, or mineral secretions. This sizing is applied in the usual way.
Having thus fully described my said invention, I clai1n 1. In the manufacture of pulp or paper stock from woods having the characteristics specified, the improvement consisting in slowly steaming or vaporizing the same at a suitable stage in the process, and then working into pulp or paper in any ordinary way, substantially as described.
2. lhe process of making paper-pulp from wood or vegetable fiber oi" the kind specified by properly cutting, stripping, and reducing the same, then treating with steam or vapor, or steeping in a bath, then washing out the coagulative matter and continuing its manufiicturc into pulp in any suitable way, substantially as described.
STEPHEN M. ALLEN.
X'Vitnesses:
A. G. FLAGG, 1I. XV. loou.
Publications (1)
Publication Number | Publication Date |
---|---|
US323771A true US323771A (en) | 1885-08-04 |
Family
ID=2392903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US323771D Expired - Lifetime US323771A (en) | Manufacture of paper-pulp |
Country Status (1)
Country | Link |
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US (1) | US323771A (en) |
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0
- US US323771D patent/US323771A/en not_active Expired - Lifetime
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