Forest Products and Wood Science

Forest Products and Wood Science
Author :
Publisher : John Wiley & Sons
Total Pages : 496
Release :
ISBN-10 : 9780813820743
ISBN-13 : 081382074X
Rating : 4/5 (43 Downloads)

Synopsis Forest Products and Wood Science by : Rubin Shmulsky

The new edition of this book offers a fully revised and updated review of the forest products industry. This important text covers the full spectrum of the subject, basing itself in a thorough understanding of the anatomical and physical nature of wood and providing a special emphasis on its use as an industrial raw material. Forest and biomass researchers are provided with comprehensive coverage of all aspects of wood science and industry, ranging from tree growth and wood anatomy to a variety of economically important wood products.

Hemp and the Global Economy

Hemp and the Global Economy
Author :
Publisher : Lexington Books
Total Pages : 247
Release :
ISBN-10 : 9781498524605
ISBN-13 : 1498524605
Rating : 4/5 (05 Downloads)

Synopsis Hemp and the Global Economy by : Nadra O. Hashim

Hemp helped not only to define economic development in southern and border-states, it also played a crucial role in agricultural production in the Mid-Atlantic, as well as industrial development in the North-east. From the founding of the nation, the manufacture of American hemp helped monetize the US economy. US hemp producers also established a range modern labor practices, including the identification and training of skilled labor, the use of seasonal workers, and ultimately, the creation of a sliding scale of wages. This book chronicles this history, as well as the contemporary controversy obstructing the production of both industrial hemp and medical marijuana. The analysis concludes with a survey of current industrial hemp projects, including several promising adaptations - as a potential medicine, a bio-fuel, and most promisingly, a reliable source of clean computing fabrication.

The Characterization of Hemp (Cannabis Sativa L.) Chemical Pulp and Paper [microform]

The Characterization of Hemp (Cannabis Sativa L.) Chemical Pulp and Paper [microform]
Author :
Publisher : Library and Archives Canada = Bibliothèque et Archives Canada
Total Pages : 308
Release :
ISBN-10 : 0612943313
ISBN-13 : 9780612943315
Rating : 4/5 (13 Downloads)

Synopsis The Characterization of Hemp (Cannabis Sativa L.) Chemical Pulp and Paper [microform] by : Fatima M. C. Correira

Hemp, a non-forest based plant, is an ideal fibrous resource that is suited for use in the Pulp and Paper products sector. It is an annual plant that can be harvested within 90 days of seeding and has both morphological characteristics (long and short cells within its stem) and chemical composition (low lignin, high holocellulose) conducive for high quality papermaking. The focus of this research is to provide an evaluation of hemp fibre as a furnish for pulp and paper applications in the Canadian context. Laboratory scale experiments were carried out to study the degradation of hemicellulose constituents during chemical (Kraft) pulping processes. The neutral sugars of L-rhamnose, L-arabinose, D-galactose, D-glucose, D-xylose, and D-mannose were quantified using high pH anion exchange chromatography (HPAEC) with pulsed amperometric detection (PAD). The primary hemicellulose constituent in hemp raw material was xylose and glucose. The analysis of the pulps indicated an initial dissolution of 25% of the primary hemicellulose constituents of hemp, a significant improvement over traditional pulp wood species of aspen and spruce, which showed an initial hemicellulose dissolution of 41% and 81% respectively. Following initial dissolution, the hemp hemicelluloses were unaffected during the Kraft pulping until the temperature reached 170°C. At this temperature, the measured concentration of the major constituents was significantly higher than at the lower temperatures, suggesting that during the alkali hydrolysis, more hemicellulose fragments were produced. Handsheets produced with aspen/hemp fibre blends displayed different structural characteristics in comparison to pure aspen sheets. The density distribution of the aspen/hemp blended sheets was investigated using an X-Ray method developed in the course of this research project. The blended aspen/hemp paper showed a significantly higher average sheet density, which accounted for the higher strength values observed. Using a pilot-scale digester, hemp pulp was produced and blend with aspen Kraft pulp. The reinforcing potential of the hemp fibre within the pulp blend was studied utilizing measures such as tensile index, tear index, burst index and sheet bulk, which were used to asses the strength changes in the blended paper produced. Of these measured characteristics, tensile strength was the most responsive to successive increases in the hemp content in the sheet.

Hemp as an Agricultural Commodity

Hemp as an Agricultural Commodity
Author :
Publisher : DIANE Publishing
Total Pages : 12
Release :
ISBN-10 : 9781437938395
ISBN-13 : 1437938396
Rating : 4/5 (95 Downloads)

Synopsis Hemp as an Agricultural Commodity by : Jean M. Rawson

Hemp fiber is amenable to use in a wide range of products incl. carpeting, home furnishings, construction materials, auto parts, textiles, and paper. Hemp seed, an oilseed, likewise has many uses, incl. industrial oils, cosmetics, pharmaceuticals, and food. In June 2005, legislation that would open the way for commercial cultivation of industrial hemp in the U.S. was introduced at the federal level for the first time. Such a change would mean that state law would determine whether producers could grow and process industrial hemp within state borders, under state regulations. Contents of this report: (1) Intro. and history; (2) Foreign Hemp Production and U.S. Consumption; (3) Review and Analysis of Economic Studies. This is a print on demand pub.

Hemp

Hemp
Author :
Publisher : CABI
Total Pages : 321
Release :
ISBN-10 : 9781845937935
ISBN-13 : 1845937937
Rating : 4/5 (35 Downloads)

Synopsis Hemp by : Pierre Bouloc

Hemp production for industrial purposes continues to grow worldwide, and is currently being used for many applications including house insulation, paper making, animal bedding, fabric, rope making and also as a biofuel. This book brings together international experts to examine all aspects of industrial hemp production, including the origins of hemp production, as well as the botany and anatomy, genetics and breeding, quality assessment, regulations, and the agricultural and industrial economics of hemp production. A translation of Le Chanvre Industriel, this book has been revised and updated for an international audience and is essential reading for producers of industrial hemp, industry personnel and agriculture researchers and students.

The Gospel of Hemp

The Gospel of Hemp
Author :
Publisher : Alan Archuleta
Total Pages : 38
Release :
ISBN-10 : 9781623093341
ISBN-13 : 1623093341
Rating : 4/5 (41 Downloads)

Synopsis The Gospel of Hemp by : Alan Archuleta

In 1916, the USDA published Bulletin No. 404, a report on using hemp hurds as a paper-making material. The bulletin proclaims that: “Without a doubt, hemp will continue to be one of the staple agricultural crops of the United States.” The report also warns that: “Our forests are being cut three times faster than they grow.” It finds that (over a 20-year period) 10,000 acres of hemp can produce the same amount of paper as 40,500 acres of trees. The test results are so favorable that USDA Bulletin #404 is printed on paper made from hemp! "The Gospel of Hemp" explains why a crop that was hailed as a "one of the staple agricultural crops of The United States" in a U.S. government report was deceptivley made essentially illegal in 1937. The time has come for America and the world to correct this deception and injustice for the future of our planet.

Advances in Hemp Research

Advances in Hemp Research
Author :
Publisher : CRC Press
Total Pages : 304
Release :
ISBN-10 : 1560228725
ISBN-13 : 9781560228721
Rating : 4/5 (25 Downloads)

Synopsis Advances in Hemp Research by : Paoli Ranalli

Offering up-to-date information on the uses and composition of the plant, Advances in Hemp Research provides growers, researchers, manufacturers, and suppliers with methods and data for the processing and cultivation of hemp for textile and paper products. You will learn how recent advances in germplasm resources, breeding methods, and the improvement of physiological, morphological, and biochemical characteristics of the plant can strengthen hemp fiber, making it a profitable and important crop to study and to grow for uses in the textile and paper industries. Providing you with a complete update on the advances in research in several different areas, this text covers the entire spectrum of recent international hemp research and technological developments. Advances in Hemp Research discusses many factors essential to the improvement of the crop and its uses, including: breeding techniques, agronomical practices, increased stress tolerance, and processing techniques that will enable the plant to produce high-quality fibers new cultivars to distinguish licit from illicit field cultivation the recent advances in crop physiology, such as radiation use efficiency, harvest index, and dry matter yields cultivation practices such as soil structure, manuring, harvesting, and crop rotation and how they contribute to optimal growing conditions for the plant current disease and control measures that lessen parasitic damage and loss of crops storing, processing, and marketing hemp as a component of paper, pulp, fiber, and oil Furthering the advancement of cannabis as an environmentally friendly and useful crop, this text supplies you with the information you need to successfully grow healthier and more resilient plants. Advances in Hemp Research will benefit your breeding studies or your business ventures by providing you with information and laboratory results that will help you successfully grow the cannabis plant for commercial use.

Hemp Hurds As Paper-Making Material

Hemp Hurds As Paper-Making Material
Author :
Publisher :
Total Pages : 28
Release :
ISBN-10 : 9798685024626
ISBN-13 :
Rating : 4/5 (26 Downloads)

Synopsis Hemp Hurds As Paper-Making Material by : Jason L. Merrill

Book Excerpt: ...ut when this raw material is not plentiful, chemical pulp of various kinds. "Linen paper" is often no more than a trade term. Not long ago printing papers were made entirely from chemical wood pulp, but to-day if it is desired to secure paper which is free from ground wood the specifications must so stipulate. Writing papers, formerly made entirely from rags, now are likely to contain either chemical or even ground-wood pulp unless the specifications prohibit it. Without doubt, many paper manufacturers have maintained certain papers up to a fixed standard for a long series of years, but it is equally true that competition has lowered the standard of a great many papers, some of which had acquired a distinctive recognition. The employment of plant fibers will not necessarily lower the present quality of papers, but if their employment does result in products whose qualities are somewhat different from our so-called standard papers it does not necessarily follow that such papers will not find a ready market...