Preparation of paper pulps from dicotyledonous plants

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Treatment with particular chemical

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8109, 8110, 8111, 162 76, 162 78, 162 85, 162 86, 162 89, 162 90, 162 93, 162 98, D21C 302, D21C 320, D21C 916

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041069790

ABSTRACT:
Paper pulp is prepared from dicotyledonous plants by stirring said plants in an alkaline solution in the presence of a surfactant and stain inhibiting agent to obtain a stock containing a woody core fraction and a bark fraction containing bast fibers, separating said fractions and then cooking and bleaching the bark fraction in an alkaline solution containing an oxidizing agent and an alkyl sulfate surfactant.

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patent: 2913362 (1959-11-01), Cusi
patent: 3224925 (1965-12-01), Brandts et al.
patent: 3388037 (1968-06-01), Asplund et al.
patent: 3620910 (1971-11-01), Lawrence
A.B.I.P.C., vol. 45, 7-12, 1974, #3799.
A.B.I.P.C., vol. 46, 7-12, 1975, #4825.
Clark et al., "A Search for New Fiber Groups V Pulping Studies on Kenaf", TAPPI, vol. 45, No. 10, 10-1962, pp. 780-786, 162-198.

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