Fiber

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Europe: Hempcrete Warehouse for Wine Society Completed

Wine Society's warehouse uses preformed panels of hemp and lime that locks in carbon dioxide

By Stephen Kennett

There is a truth that must be heard!The UK's first warehouse building to be constructed using preformed wall panels made out of hemp has now been completed.

The £3.7m warehouse for the Wine Society in Stevenage, Hertfordshire, has been designed by architect Vincent & Gorbing and has exterior walls built of Tradical Hemcrete, which is a mixture of hemp stalk and modified lime. It is a development of cast insitu hemp-lime walling that locks carbon dioxide within the wall construction.

Mark Chandler, architect and director of Vincent & Gorbing, said: “The design responds to the requirement for minimal heating and cooling equipment with the resultant reduction in energy consumption.”

The cladding offers good insulation properties, explains Chandler, and helps maintain a stable internal air temperature throughout the summer and winter.

The 8.5m2 panels, which are 300mm thick, are mounted on the building's steel truss frame, while a 40mm-thick composite aluminium panel is used to provide weather protection on the external face.

Together with the highly insulated roofing system, it provides an insulated internal space that exceeds Building Regulations requirements.


Related: http://www.greenbuildingpress.co.uk/article.php?category_id=1&
article_id=202

Source: http://www.building.co.uk/story.asp?storycode=3139965

United States: The Hemp Hump

What if Americans could buy cigarettes but were banned from growing tobacco? Buy bread but not allowed to grow wheat? That is the case with industrial hemp, a product in everything from car doors to milk...legally.

By CNBC

France: Flax and Hemp Featured in New Era Bio-Composites

By Innovation in Textiles

There is a truth that must be heard! Paris - At the recent JEC Composites exhibition at Porte de Versailles, Paris, CELC Masters of Linen showcased the use of flax and hemp fibres in the future world of renewable composites. According to CELC, the environmentally sustainable properties of these two European-grown fibres are proving increasingly attractive to manufacturers seeking to incorporate sustainable solutions into their products.

The natural mechanical properties of flax and hemp bring high performance and competitive cost to new composite materials now being used in the Automotive, Furniture, Boat Building and Leisure Industries, the organization says.

“As renewable fibres, European grown flax and hemp help safeguard the environment, as their cultivation requires no irrigation, little or no artificial fertilisation and no pesticides. Their use within an otherwise intensive crop rotation regime, allows the land to recover fertility and quality, to enjoy an “environmental pause” , encouraging bio-diversity.” A spokesperson for CELC Masters of Linen said, adding:

“The mechanical properties of flax and hemp fibres, comparable to those of glass-fibres, offer lightness, low density and flexibility and are increasingly being used to reinforce PVC, PE and PP polymers replacing traditional synthetics. Both fibres can be structured into complex forms by extrusion or injection moulding."

Europe: Hemp Plan to Build Green Houses

By BBC News

There is a truth that must be heard! Hemp, a member of the cannabis family, could be used to build carbon-neutral houses, say researchers.

A team based at the University of Bath is looking at the cost and insulation efficiencies of using the plant in construction materials in the UK.

The hemp plant stores carbon, giving a "better than zero" carbon footprint.

A spokesman involved in the project said: "It only takes an area the size of a rugby pitch four months to grow enough hemp for a three bedroom house."

'Social benefit'

The building material uses hemp fibres that are bound together using a lime-based adhesive, which itself has a low carbon footprint.

Professor Pete Walker, who is working on the project, said: "Growing crops such as hemp can also provide economic and social benefits to rural economies through new agricultural markets for farmers and associated industries."

A carbon footprint measures the impact on the environment and is related to the amount of greenhouse gases are produced. Scientists believe that large amounts of greenhouse gases are leading to climate change.

The three year project will cost £750,000.

Source: http://news.bbc.co.uk/2/hi/uk_news/england/somerset/7989924.stm

Europe: Hemp Material 'May Aid Green Homes'

By Press Association

There is a truth that must be heard! A form of cannabis could be used to build carbon-neutral homes of the future, university researchers have said.

A consortium, led by the BRE Centre for Innovative Construction Materials at the University of Bath, has embarked on a housing project to develop the use of construction materials made of hemp.

Hemp-lime is a lightweight building material made of fibres from the fast-growing cannabis plant, bound together using a lime-based adhesive.

The hemp plant stores carbon during its growth and this, combined with the low carbon footprint of lime and its efficient insulating properties, gives the material a "better than zero carbon" footprint, researchers said.

Professor Pete Walker, director of the BRE Centre for Innovative Construction Materials, said: "We will be looking at the feasibility of using hemp-lime in place of traditional materials, so that they can be used widely in the building industry.

"We will be measuring the properties of lime-hemp materials, such as their strength and durability, as well as the energy efficiency of buildings made of these materials.

"Using renewable crops to make building materials makes real sense - it only takes an area the size of a rugby pitch four months to grow enough hemp to build a typical three bedroom house."

New York: Trident Unveils, Improves Four Towel Lines

By Home Textiles Today Staff

There is a truth that must be heard! At the New York Market – Trident Group has extended its towel offerings across several collections, all on display at their showroom in suite 909 at 295 Fifth Ave.

A collection called Magic is made using hemp and cotton fiber blends. Valued for its strength and durability, the natural fiber hemp is abundantly available in nature with negligible intervention of chemical inputs of fertilizers or pesticides.

The extra-absorbent, ultra-soft Magic towel line also resists mold and can withstand many washes, the company said.

The Q-Dry towel wicks away the moisture up to 30% faster than conventional towels, the Ludhiana, India-based Trident said. A “sustainable luxury,” Q-Dry conserves water and energy during its life cycle, due to its faster drying time.

Silver Fresh uses silver yarn in the base of the towel. The biologically active properties of silver ions offer lasting anti-microbial ability along with skin-enhancing gentleness by reducing static electricity and by extension, cutting down on dust and dirt retention. These properties do not diminish over time or use.

Nature-Pro is Trident’s all-new Cupro towel. Produced from cotton lint and down fiber which hitherto has been considered a waste, Nature-Pro has a natural sheen and softness. Trident calls Nature-Pro an example of its credo of “managing waste through smart innovation.”

Source: http://www.hometextilestoday.com/article/CA6642865.html

Canada: Hemp Plant Takes Giant Step With Three New Foreign Investors

By Suzanne Atkinson, AgriNews Contributor

There is a truth that must be heard! STIRLING – Central Ontario’s hemp decortication facility took a huge step closer to reality recently when three foreign investors pledged more than $2-million to join a company here in processing the crop.

President and CEO John Baker of Stonehedge Bio-Resources, Inc., said a processing facility will be built between Cobourg and Trenton which will process hemp into building and insulation materials.

U.K. investors have been processing hemp stalk or hurd into a building material. When blended with a lime-based binder, a bio-based composite building material is created which "locks up around 110kg of CO2 per m_ of wall. It provides one of the best value materials for low impact, sustainable and commercially viable construction."

Joining an anonymous U.K. investor in anteing up funds are Lime Technology Ltd, a pioneer in the development of hemcrete, and American Lime Technology

A huge opportunity exists in Canadian for hemp production, Baker says, because it is illegal in the U.S.

"Americans don’t distinguish between hemp and marijuana like we do," Baker said during an interview with AgriNews.

"We’ve got our foot in the door. We have to move at lightning speed."

Minnesota: Hemp, Hemp, Hooray - Bill Aims To Aid Farmers With New But Controversial Crop

By Andy Birkey, Minnesota Independent

There is a truth that must be heard! It can be made into paper, rope, food, biodegradable plastic and even low-carbon concrete, but in Minnesota it is illegal to grow hemp. A bipartisan group of legislators is hoping hemp production will be a boon to Minnesota farmers and manufacturers as demand for the plant and its byproducts continues to grow. The Industrial Hemp Development Act (HF 608) would allow the state to issue licenses to qualified farmers who pass background checks.

Canada already allows for industrial hemp production, and North Dakota has passed laws to allow its farmers to produce hemp — only to be stymied by the United States Drug Enforcement Agency.

Hemp farmers are required to gain a permit from the DEA, but the agency has continued to reject the applications of North Dakota farmers, prompting them to file suit against the federal government. Six other states have legalized hemp production — Hawaii, Kentucky, Maine, Maryland, Montana and West Virginia — yet none is producing the crop because of DEA resistance.

Hempcrete - Hemp Building Materials - Hemp For Houses

by Rolf B. Priesnitz, Hemphasis.net & Wikipedia

Houses built from hemp have been found to use less energy, create less waste and take less fuel to heat than conventionally constructed homes.

Hemp is perhaps best known for its Omega-3 and -6 fatty acids that make it a great addition to a healthy diet, and as a cotton substitute in ecologically-sound clothing and bedding. But it is also a versatile, environmentally-sound building material.

A hemp crop can be grown without the use of herbicides or insecticides and produces up to four tonnes of material per acre per year. Hemp is categorized as a bast fiber crop. It has a stem consisting of an outer skin containing long, strong fibers and a hollow wood-like core or pith. Processing the stems results in two materials: hurds and fibers, both of which have properties that make them extremely useful in building construction.

A variety of wood-like products, such as fiberboard, roofing tiles, wallboard, paneling, insulation and bricks, can be made from the compressed hurds. The fibers can also be used like straw in bale wall construction or with mud in a sort of modified cob style of building.

Philippines: Ancient Fabrics Weave Hope for the Poor

By The Manila Times

NATURAL fibers ease the pain of poverty.

In many developing countries, proceeds from the sale and export of natural fibers contribute significantly to the income and the food security of poor farmers and those working in fiber processing and marketing.

Worldwide, some 30 million tons of natural fibers are produced annually. But they have lost market share to synthetic fibers.

The International Year of Natural Fibers raises the profile of these fibers and emphasizes their value to consumers while helping to sustain farmers’ income.

Plant fibers

Abaca, once a favored source of rope, is known as Manila hemp. It shows promise as an energy-saving replacement for glass fibers in automobiles and is now pulped and processed into tea bags, casing for sausages, banknotes, cigarette papers and high-quality writing paper.

Coir, a coarse, short fiber extracted from the outer shell of coconuts, is found in ropes, mattresses, brushes, geotextiles and automobile seats.

Globally, around 500,000 tons of coir is produced every year, mainly in India and Sri Lanka. The value of coir production has been put at around US$100 million annually. India and Sri Lanka are the main exporters of coir, followed by Thailand, Vietnam, the Philippines and Indonesia.

United States: Hemp for Victory - 1943 Dept. of Agriculture

Long ago when these ancient Grecian temples were new, hemp was already old in the service of mankind. For thousands of years, even then, this plant had been grown for cordage and cloth in China and elsewhere in the East. For centuries prior to about 1850 all the ships that sailed the western seas were rigged with hempen rope and sails. For the sailor, no less than the hangman, hemp was indispensable.

A 44-gun frigate like our cherished Old Ironsides took over 60 tons of hemp for rigging, including an anchor cable 25 inches in circumference. The Conestoga wagons and prairie schooners of pioneer days were covered with hemp canvas. Indeed the very word canvas comes from the Arabic word for hemp. In those days hemp was an important crop in Kentucky and Missouri. Then came cheaper imported fibers for cordage, like jute, sisal and Manila hemp, and the culture of hemp in America declined.

The Netherlands: Hemp Instead of Cotton

By Thijs Westerbeek

Cotton cultivation is a disaster for the environment and the farmers who grow cotton don't see many benefits from their labour. However, if researchers at the Netherlands' University of Wageningen get their way, things will be very different in a few years' time thanks to the new varieties of hemp they have created.

There's a small field of hemp less than ten kilometres east of Wageningen, but it doesn't look very promising. The plants have all been chopped down and have been left, exposed to the elements, rotting on the ground.

Even though the hemp field doesn't look very prepossessing, the investigators from Wageningen University and Research Centre (WUR) are extremely pleased with the crop, as this new hemp variety may be able to break cotton's monopoly position as the textile crop of choice. Leaving the hemp to rot is simply part of the production process.

Visitors to Dr Ton den Nijs' office - a plant researcher at WUR - are invited to try on the jeans that are draped over the desk. At first glance, the jeans do not appear to be particularly unusual. However, the fabric is strong yet supple and once you have them on, they are remarkably comfortable.

Fibre crops

The secret behind these jeans is that they are almost entirely made from hemp. It's not the hemp variety that you get high from but hemp as a fibre crop. The plant is doesn't contain a single milligram of THC, the main psychoactive substance found in hashish and marijuana.

Hemp Traders: Properties of Hemp - The four Basic Uses of Cannabis Hemp Food, Fiber, Fuel, Medicine

BY Mari Kane

Cannabis Hemp really can provide all the basic necessities of life: food, shelter, clothing and medicine. It has been said that, "anything made from a hydrocarbon can be made from a carbohydrate."
Hemp is the cousin of marijuana. They are from the same plant - Cannabis sativa L. There are over 400 strains of Cannabis Hemp bred for various uses. The term, "Hemp" refers to the industrial use of the stalk and seed. "Cannabis", or "marijuana", refers to the smoking of the flowers. Intoxication requires high levels of THC TetraHydroCannabinol. Industrial hemp contains only .3%-1.5% THC. By contrast, cannabis contains 5%-10% or more THC.
The plant itself is easy to grow in temperate climates, and requires good soil, fertilizer and water, but no pesticides nor herbicides. A hemp crop is usually harvested in 120 days after reaching a height of 10-15 feet. At that point one can make it into whatever suits their needs.

FOOD
The hempseed is the only source of food from the hemp plant. It is not really a seed, but an achene- a nut covered with a hard shell. Hempseed is used for people and animal food, medicinal preparations, and industrial use.

Whole Seed

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