2010년 12월 22일 수요일

2010년 12월 17일 금요일

Textiles and Eco-friendly products

Textiles could be one of the most un-sustainable products in the world. In their entire lifecycle from growing the raw material or creating it from oil to manufacturing and selling and final disposal they can create a serious problem.
The Worsted Witch provides an excellent overview of “Textiles and Sustainability“.
She says:
Not all textiles are created equal. Some fabrics, such as polyester and nylon, which are petroleum-derived, are downright unsustainable. And although rayon is composed of wood pulp, its production is a polluting bad boy. Even ubiquitous cotton isn’t untouchable…
And continues by quoting from the an/Feb 2006 issue of Natural Home & Garden had this to say:
The textile industry creates a host of pollution problems. Factories discharge dyes and chemicals into waterways, and they release heat, fly ash, formaldehyde, and sulfurous and nitrous compounds into the air, thereby contributing to acid rain. Textile packaging, drums, and toxic chemicals are dumped into landfills. Even the used fabrics themselves are a problem. Many can’t be recycled because of their mixed-fiber content.
In this context, The Mint talks about the recent textile trade fair in Paris, Texworld, (Free Reg.) where organic cottons and fair-trade were the new trends helping companies to cash in.
As consumers wake up to global warming and globalization, ethical issues are gaining ground and spinning more and more hard cash in the competitive world of international textiles.
And textile ground-breaker Tencel, one of the world’s leading companies highlighting health and environmental concerns, said business was growing. “Demand for organic cotton is gaining momentum,” said Ram Srinivasan, general manager, marketing, KG Denim Ltd.
Socota uses clean cotton grown in Cameroon, which is then spun in Madagascar, woven in Madagascar and Mauritius, and turned into garments in Madagascar.
But as buyers worldwide look increasingly to eco-friendly fabrics, the ground-breakers in the field are having to look beyond purely environmental concerns to market their goods. Austrian firm Lenzing, which produces the new-age Tencel fibre made of wood pulp that revolutionized textiles in the 1990s, claimed that the fibre was perfect for people with sensitive skin.
As The Worsted Witch reminds us, “When a textile is labeled “organic,” it generally refers to the fiber itself, as opposed to the textile production process.”
There are benefits at different life-cycle stages of the organic and eco-friendly fabrics trade, both for consumers and producers however, in the larger scale of things it is important to see that organic cotton may travel half way around the world to reach the ethical customer.
Resources:

what is bamboo fabric?

 Bamboo fabric is a natural textile made from the pulp of the bamboo grass. Bamboo fabric has been growing in popularity because it has many unique properties and is more sustainable than most textile fibers. Bamboo fabric is light and strong, has excellent wicking properties, and is to some extent antibacterial. The use of bamboo fiber for clothing was a 20th century development, pioneered by several Chinese corporations. fabric is very soft and can be worn directly next to the skin. Many people who experience allergic reactions to other natural fibers, such as wool or hemp, do not complain of this issue with bamboo. The fiber is naturally smooth and round without chemical treatment, meaning that there are no sharp spurs to irritate the skin.
Bamboo fiber resembles cotton in its unspun form, a puffball of light, airy fibers. Many companies use extensive bleaching processes to turn bamboo fiber white, although companies producing organic bamboo fabric leave the bamboo fiber unbleached. To make bamboo fiber, bamboo is heavily pulped until it separates into thin component threads of fiber, which can be spun and dyed for weaving into cloth.
Bamboo
Bamboo fabric is favored by companies trying to use sustainable textiles, because the bamboo plant is very quick growing and does not usually require the use of pesticides and herbicides to thrive. As a result, plantations can easily be kept organic and replanted yearly to replenish stocks. The process of making unbleached bamboo fiber is very light on chemicals that could potentially harm the environment.
In textile form, bamboo retains many of the properties it has as a plant. Bamboo is highly water absorbent, able to take up three times its weight in water. In bamboo fabric, this translates to an excellent wicking ability that will pull moisture away from the skin so that it can evaporate. For this reason, clothing made of bamboo fiber is often worn next to the skin.
Bamboo also has many antibacterial qualities, which bamboo fabric is apparently able to retain, even through multiple washings. This helps to reduce bacteria that thrive on clothing and cause unpleasant odors. It can also kill odor causing bacteria that live on human skin, making the wearer and his or her clothing smell more sweet. In addition, bamboo fabric has insulating properties and will keep the wearer cooler in summer and warmer in winter. The versatility of bamboo fabric makes it an excellent choice for clothing designers exploring alternative textiles, and in addition, the fabric is able to take bright dye colors well, drape smoothly, and star in a variety of roles from knit shirts to woven skirts.
http://www.wisegeek.com/what-is-bamboo-fabric.htm

Bamboo

Bamboo

- Anti Bacter Tab- good for kids.
                             Hysenes

- Bamboo fabric has a higher absorbancy than cottons.

- stronger but flexible.
  soft as silk
- eco- friendly

- bamboo tree grow realy fast- fast to get resourses

What is wool?

Wool is the dense, warm coat of sheep, also called a fleece. The hair of sheep has many unique properties that make it well suited to textile production, something humans realized approximately 8000 BCE, when sheep first began to be domesticated. Wool is used in a variety of textiles and can be found woven or knitted.
Wool is highly flame resistant, and frequently used for mattresses and rugs for that reason. It is also highly durable, able to stretch up to 50% when wet and 30% when dry. In addition, wool has excellent moisture wicking properties, pulling moisture into the core of the fiber so that it doesn't feel wet or soggy to the wearer. Wool pulls moisture away from the skin, as well, and is worn by people in a wide variety of situations who prefer the feeling of dry air next to the skin to the clammy sense of perspiration.
Wool is favored for textile production because it is easy to work with and takes dye very well. The springy fibers remember shapes when well cared for. Furthermore, wool takes to felting, a process in which fibers interlock into a tight mat, very well. Felt is used as insulation, for arts and crafts projects, and for decorative accents.
Wool production starts with the shearing of the sheep, which usually happens once a year. A skillful shearer can remove the entire fleece at once with long flowing strokes, keeping the fibers long. After shearing, the wool is washed to remove impurities. One of these impurities is lanolin, which is used in many cosmetics.
After washing, many producers combine wools for a specific blend and dye them together, so that the dye will take evenly, before carding the wool through a set of teethed rollers. Carding pulls the fibers straight, while removing any remaining dirt or vegetable matter from the wool. The wool is pulled into slivers, long strips of fibers loosely pulled together and running in the same direction. If, after carding, the wool is under three inches (almost eight centimeters), it is twisted into rovings, rope like strands that can be spun into wool for knitting. If the strands are longer, they must be combed and drawn before spinning.
Spinning pulls the fibers tightly together and twists them so that they retain a long yarn shape. Yarn can be spun in all sorts of thicknesses and gauges, depending upon the intended use. For wool weaving, the yarn tends to be very fine. For knitting, it may be quite chunky. There are myriad uses for wool, a highly versatile textile. For example, shorter, coarse wool will turn into carpeting, while medium length wool will be used in suits.
After knitting or weaving, the wool is often shrunk through a controlled process so that it won't shrink excessively for the end user. Most knits are also blocked on forms to set a shape, and many wool products are also brushed for a specific finish.
Proper care for wool begins with following the label directions. In general, wool should be allowed to rest between wearings, to retain its shape. It should never be compressed or stored on hangers, which will stretch it. Brushing wool will remove surface soil and stains before they are ground in, and a slightly damp cloth will remove deeper stains. Wool should be dried flat at room temperature, not exposed directly to heat. http://www.wisegeek.com/what-is-wool.htm