Cellulose and cellulose derivatives, Volume 5, Part 2 |
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Page 507
B. Beating 633 1. Influence of Moisture on Pulp 634 2. Beating Equipment 635 3.
The Action of Beating Equipment 638 4. Measurement of Beating 641 C.
Theories of Beating 643 1. Chemical Theory of Beating 644 2. Physical Theories
of Beating 645 3. Composite Theory of Beating 654 D. Results of Beating 657 1.
Effects of Beating on the Fibers 657 2. Effects of Beating on the Pulp 658 3.
Effects of Beating on the Paper 661 4. Factors Affecting the Rate of Beating 662 5
. Phenomena ...
B. Beating 633 1. Influence of Moisture on Pulp 634 2. Beating Equipment 635 3.
The Action of Beating Equipment 638 4. Measurement of Beating 641 C.
Theories of Beating 643 1. Chemical Theory of Beating 644 2. Physical Theories
of Beating 645 3. Composite Theory of Beating 654 D. Results of Beating 657 1.
Effects of Beating on the Fibers 657 2. Effects of Beating on the Pulp 658 3.
Effects of Beating on the Paper 661 4. Factors Affecting the Rate of Beating 662 5
. Phenomena ...
Page 633
(J) Pulp Evaluation and Response to Beating The five properties just discussed
are sufficient to characterize the physical properties of a prepared or beaten pulp.
Properly interpreted, they serve to forecast its "running" qualities on the paper
machine (in inverse proportion to the density of the test sheets) and to predict the
strength and most other qualities of the paper made from it. Pulps differ
considerably in their response to beating, depending upon the structure of the
fibers and the ...
(J) Pulp Evaluation and Response to Beating The five properties just discussed
are sufficient to characterize the physical properties of a prepared or beaten pulp.
Properly interpreted, they serve to forecast its "running" qualities on the paper
machine (in inverse proportion to the density of the test sheets) and to predict the
strength and most other qualities of the paper made from it. Pulps differ
considerably in their response to beating, depending upon the structure of the
fibers and the ...
Page 651
Harrison, in the course of several contributions as a result of many careful
experiments on beating,39 published66 some photomicrographs showing mildly
beaten fibers apparently devoid of fibrillation which nevertheless formed quite
strong sheets of paper and concluded accordingly that fibrillation was not alone
responsible for strength. Indeed, he pointed out that when fibrillation became
pronounced after much beating, the rate of strength development was then barely
increasing.
Harrison, in the course of several contributions as a result of many careful
experiments on beating,39 published66 some photomicrographs showing mildly
beaten fibers apparently devoid of fibrillation which nevertheless formed quite
strong sheets of paper and concluded accordingly that fibrillation was not alone
responsible for strength. Indeed, he pointed out that when fibrillation became
pronounced after much beating, the rate of strength development was then barely
increasing.
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Contents
Preparation of Cellulose from Its Natural Sources | 511 |
Bleaching and Purification of Wood Cellulose Hatch | 589 |
VTIL Properties and Treatment of Pulp for Paper Clark | 621 |
Copyright | |
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Common terms and phrases
absorption Abstracts acetic acid acetic anhydride acetylation agents alcohol alkali cellulose amount aqueous beating benzyl cellulose bleaching Brit C. J. Malm carbon carboxymethyl cellulose catalyst caustic cellu cellulose acetate cellulose derivatives cellulose ethers Chem chemical cotton chim chlorine coagulation commercial composition compounds concentration cooking cuprammonium curve decrease degradation degree of substitution dilute dioxide dissolved effect esterification esters ethyl cellulose fibrils fibrous Hercules Powder HNO3 hydrolysis hydrolyzed hydroxyl groups increase intrinsic viscosity kraft lignin linters liquor manufacture material mercerization method mixed acid mixture molecules NaOH nitration nitrocellulose nitrogen obtained oxidation oxygen Paper Trade plastic prepared properties pyridine ratio rayon react reaction reactivity reagents removed salt sheet soda sodium carboxymethyl cellulose sodium hydroxide soluble solution solvents strength structure sulfite pulp sulfuric acid surface swelling temperature Textile tion treatment U. S. Patent uniform washing water-soluble wood pulp xanthate yield