Forest Products from Latin America. Annotated Bibliography of ...

V. surinamensis and J. copaia showed the most promise be-
cause of their strength properties (bursting strength, break-
ing length, and resistance to tear and folding). Data are
presented in both tabular and graphic form.
Melo-S., R.; Paz, J. 1980. Bleaching capacity of euca-
lypts grown in Chile. Investigacion y Tecnica del Papel.
17(63):62-73.
Describes pulping tests of 7 eucalypts, ranging in age from
11 to 15 years. The physical and chemical properties were
compared to pulps made using the Kraft process using a
CEDED sequence and subsequent bleaching. The species
tested were: Eucalyptus bicostata [E. globulus bicostata],
E. delegatensis, E. globulus, E. grandis, E. maidenii, E.
obliqua, and E. regnans. Wood density differences did not
significantly affect pulp yield.
Melo-S., R.; Madsen, P.E. 1966. Pulps from sawmill
waste and thinnings. Tappi. 49(9):54A-55A.
Misra, N.D. 1973. A method for grading tropical hard-
wood. Pulp and Paper International. 15(6):48-49.
Describes and proposes a method for grading the suitability
of tropical hardwoods for pulping, and gives tabulated data
obtained by applying it to 18 hardwoods, bamboo (Dendro-
calamus strictus), and kenaf (Hisbiscus cannabinus).
Molina-C., E.; Bueno-Z., J. 1979. Sulfate pulp from
seven mixtures of 39 woods from Iquitos [Peru] (Pulpa al
sulfato de mezclas de 39 maderas de la zona de Iquitos).
Revista Forstal del Peru. 9(2):26-37.
Moreno, L.; Melo-S., R. 1969. Pulping the wood of in-
signe pine by means of the acid-neutral process. Concep-
cion, Chile: Facultad de Ingenieria, Universidad de Concep-
cion. M.S. thesis.
Muner, T.S.; Barrichelo, L.E.G. 1983. Effect of thin-
ning on the quality of wood from Pinus taeda used for pro-
ducing kraft pulp. In: Proceedings, 16th annual ABCP
Meeting, 3rd Latin American cellulose and paper congress;
1983 November 21-26; Sao Paulo, Brazil. Sao Paulo,
Brazil: Technical Association of the Brazilian Pulp and
Paper Industry (ABCP): 93-112.
Describes the effects of three different thinning intensities
on the wood of 17 year-old Pinus taeda grown in Brazil.
Stands were thinned to 25, 50, and 75 percent of original.
Two years after thinning 80 trees were sampled. Data show
that wood formed after thinning had higher lignin content,
lumen diameter, and ring width, and lower basic density.
Alcohol/benzene and warm water extractives tended to
increase, while holocellulose, pulp yield, kappa number,
and viscosity tended to decrease. Pulps produced from the
wood formed after thinning had better tensile strength,
specific weight, and porosity, but poorer tear strength.
Mussi, F.; Mussi, F.H.; Castano, A.D. 1977. History
of paper: homage to the centennial of paper manufacturing
in Argentina. Trabajos Tec. 13th Congreso Tecnico sobre
Celulosa y Papel, Buenos Aires, Argentina. Associacion de
Tecnicos de la Industria Papelera y Celulosica Argentina:
1-18.
Nikles, D.G.; Burley, J.; Barnes, R.D., eds. 1978.
Progress and problems of genetic improvement of tropical
forest trees. In: Proceedings of a joint workshop;
94
IUFRO working parties S2.02-08 and S2.03-01; 1977; Bris-
bane, Queensland, Australia. Oxford, UK: Commonwealth
Forestry Institute. 2 vols., 1,066 p.
Proceedings of a joint workshop held in Brisbane, Queens-
land, Australia, April 4-7, 1977 by IUFRO working par-
ties S2.02-08 (Tropical species provenances) and S2.03-01
(Breeding tropical species). The 110 papers covered five
topics: 1. Wood quality of tropical species in relation to
provenance and tree breeding; 2. Pulp, paper, and timber
properties of plantation-grown tropical pines; 3. Selection
and genetics; 4. Population-environment interactions; and
5. Provenance trials and breeding programs.
Nock, H.P. 1979. Brazil’s paper and cellulose program.
(Brasiliens Papier- und Zellstoffprogramm). State Tech.
Sch., Hamburg, German Federal Republic. Allgemeine
Forstzeitschrift. 29:800-803.
Describes the National Paper and Cellulose Program that
is designed to develop self-sufficiency in paper manufacture
for Brazil and produce a favorable balance of trade in pulp
and paper. The author predicts an annual pulp production
increase from 0.4 million t in 1977 to 3.0 million t in 1982.
Dependence on foreign investment and large-scale afforesta-
tion schemes (in Eucalyptus and Pinus spp.) is required to
accomplish the goals. The greatest growth is expected in
bleached sulphate pulp derived from Eucalyptus plantations
in southeastern Brazil.
Pacini, P. 1978. Kraft pulping of Brazilian eucalypt
Papel. 39:35-40.
Describes the pulping of eucalyptus species in Brazil, not-
ing optimum chip dimensions and cooking conditions.
Problems with bark and extractives are discussed. Data on
the kraft pulping of Eucalyptus saligna showed that deligni-
fication was relatively easy due to its low lignin content.
Palmer, E.R. 1974. Pulping characteristics of Gmelina
arborea and Bursea simaruba from Belize. Rep. L 36. Lon-
don, United Kingdom: Tropical Products Institute. 27 p.
Describes the chemical composition, fiber dimensions, and
pulping characteristics of 5 trees each of G. arborea and
B. simaruba (8 to 9 year). Both species were easily pulped
by the sulphate process, and yields were similar to those for
US southern hardwoods pulped under the same conditions.
The strength characteristics of the unbleached pulps showed
that G. arborea yield stronger pulps than B. simaruba and
that both yielded denser pulps, with better bonding but
poorer tearing strength, than US southern hardwoods.
Pulps of both species could be bleached by a 4-stage
sequence of chlorination, alkali extraction, hypochlorite,
and chlorine dioxide to a good brightness. The bleached
pulps had strength characteristics similar to those of a com-
mercial birch pulp. Both species yielded bleached pulps
satisfactory for writing and printing papers and also un-
bleached pulps suitable for the manufacture of packaging
materials, except where a high tearing strength is required.
G. arborea is preferred for its higher growth rate, higher
density, greater yield of pulp, and better pulp strength
characteristics.
Palmer, E.R. 1978. Investigations at Tropical Prod-
ucts Institute of fibrous materials for use in pulp and pa-
permaking. In: Auchter, R. J., coordinator. Proceedings
of conference on improved utilization of tropical forests;