Organic Cotton vs Conventional Cotton
The word cotton is derived from the Arabic word “al-quatan”. No one knows
how old the cotton plant is. One of the first archeological discoveries of cotton
usage in the world is located in Pakistan at Mohenjo Daro. This site is over 5,000
years old.
In conversations, “natural clothing” is sometimes used to refer to organic clothing
because the clothing is completely natural and was not grown with any toxic chemicals
nor manufactured using toxic chemicals. But natural fiber clothing simply refers to
clothing made from fibers found in nature, such as cotton, wool or hemp, which may
not be grown or manufactured under conditions which would allow them to be certified
as organic.
Natural fibers fall into three main groups: vegetable fibers which come from plants;
protein fibers, which come from the wool and hair of animals; and the strong elastic
fibrous secretion of silkworm larvae in cocoons which is used to create silk. The most
common natural fibers used to make clothing are cotton, hemp, ramie, linen, tencel,
wool, and silk.
Cotton evokes images of white, fluffy purity and many people think of cotton as being
a natural, pure fabric. Due to its unique fiber structure which can absorb up to 27
times its own weight in water, cotton breathes and helps remove body moisture by
absorbing it and wicking it away from the skin.
Conventional Cotton
Conventional cotton is often promoted as a 'natural' product; however, it is one of the
most heavily sprayed crops, utilizing more than 25% of all the insecticides in the world,
yet it is farmed on only 3% of the world's farmland. In the USA alone, an estimated
800 million pounds of pesticides are used on cotton each year. In addition, conventional
cotton textile manufacturing involves bleaches, formaldehyde, and other chemical
finishes, as well as other chemical processes. Almost 1/3 pound of synthetic chemicals
is utilized for each pound of conventional cotton.
Traces of these chemicals remain in the finished product, even after repeat washings.
The chemicals used to grow conventional cotton may have serious adverse effects
on human health and the environment.
Organic Cotton
Organic cotton is cotton that has been grown for at least three years without chemical pesticides, defoliants, or
fertilizers. Fertilizers that are used include compost, manure, naturally derived mineral, plant fertilizers and crop
rotation. Insect controls involve the use of beneficial insects and natural pesticides certified for organic crops. Organic
cotton is also processed without oils, chemicals, and pesticides.
Organic is grown using methods and materials that have a low impact on the environment. Organic production
systems replenish and maintain soil fertility, reduce the use of toxic and persistent pesticides and fertilizers, and
build biologically diverse agriculture.
Processing Seed to Apparel
There is a general four-step process to turn a seed into apparel.
1) Planting and growing
2) Harvesting
3) Cleaning of the cotton boll,
4) Manufacturing
Step 1: Planting and Growing
Conventionally grown cotton
Just 2.4% of the world's arable land is planted with cotton yet it accounts for 25% of the world's insecticide market
and 11% of global pesticides sales, making it the most pesticide-intensive crop grown on the planet. The pesticides
used by farmers not only kill cotton pests but also decimate populations of beneficial insects such as ladybugs and
parasitic wasps. Pesticides not only disrupt the balance of nature in the field, but also harm people who come in
contact with them. According to the Organic Consumers Association, the use of pesticides, which includes insecticides,
herbicides and fungicides, for conventional cotton production has created serious problems for human health and
the environment in all cotton-growing regions worldwide. Over 500 species of insects, 180 weeds and 150 fungi
have developed resistance to the chemicals used to kill them off.
Organically grown cotton
Working with rather than against nature
is the guiding principle behind organic
farming. Organic farmers use
biologically-based rather than
chemically dependent growing systems
to raise crops. Organic cotton is now
being grown in more than 18 countries
worldwide. Organic Farming starts with
healthy soil. Compost, efficient nutrient
recycling, frequent crop rotations and
cover crops replace synthetic fertilizers
to keep the soil healthy and productive.
Organic Farmers have many options
to control weeds including: hoes and
other mechanical weeding implements,
crop rotations, planting several crops
together (intercropping) and even
adjusting the planting dates and
densities of their crops. To control
pests, organic farmers may use
beneficial predator insects, crop
rotations, intercropping, and biological
pesticides.
Step 2: Harvesting
Conventionally Harvested Cotton
After the toxic debacle of the growing season, the chemical woes only
continue. During harvesting, herbicides are used to defoliate cotton plants
to make picking easier. The global consequences are that chemicals pollute
ground water and rivers with potentially carcinogenic compounds. Large
harvesting machinery compacts the ground reducing soil productivity.
Organic Harvested Cotton
Organic cotton is often hand picked, especially in developing countries,
without the use of defoliants, machinery, or chemicals. Hand picking also
means less waste.
Step 3: Cleaning & Ginning
Cotton is also an important food source for humans and animals. Cotton
is comprised of 40% fiber and 60% seed by weight. Once separated in the
gin, the fibers go to textile mills, while the seed and various ginning byproducts
are used for animal feed and for human food, mostly in the form
of cottonseed oil. Cottonseed, which is rich in oil and high in protein, is a
common ingredient in cookies, potato chips, salad dressings, baked goods,
and other processed foods. With conventionally grown cotton, the pesticide
residues from the cottonseeds concentrate in the fatty tissues of these
animals, and end up in meat and dairy products. Organically grown cotton
can be used to produce organic food products for people and animals.
Organic cotton is important not just in the clothing chain but also in the
food chain.
Step 4: Manufacturing – Spinning, Weaving, Knitting, Dying, & Finishing
Conventionally Manufactured Cotton
Conventionally manufactured cotton must be chemically processed to
become the soft fiber that consumers love. Only in the spinning process
where cotton fibers are spun into yarn is cotton untouched by chemicals
or oils. After spinning, the yarn receives a polyvinyl alcohol sizing to make
the yarn easier to weave. After weaving, the fabric is then bleached either
with hydrogen peroxide or chlorine. The sizing is then removed from the
fabric with a detergent. Next, it is washed or “scoured” with sodium
hydroxide. Finally, it is piece-dyed, often with formaldehyde-fixing agents.
An additional washing is needed to attempt to remove the formaldehydefixing
agents. The last step is finishing and this is where many chemical
sensitivity problems begin. A urea-formaldehyde product which cross-links
molecules is routinely applied to reduce shrinkage and wrinkling.
Manufacturing organic cotton
At each manufacturing step, organic clothing manufacturers do not add
petroleum scours, silicon waxes, formaldehyde, anti-wrinkling agents,
chlorine bleaches, or other unauthentic materials. Natural alternatives
such as natural spinning oils that biodegrade easily are used to facilitate
spinning; potato starch is used for sizing; hydrogen peroxide is used for
bleaching; organic color grown cottons and low-impact dyes and earth
clays are used for coloration; and natural vegetable and mineral inks and
binders are used for printing on organic cotton fabric. These natural
alternatives are used to reduce and eliminate the toxic consequences
found in conventional cotton fabric manufacturing.
Organic Cotton Products
Apparel companies are developing
programs that either use 100 percent
organically grown cotton, or blend small
percentages of organic cotton with
conventional cotton in their products.
There are a number of companies
driving the expanded use of domestic
and international organic cotton.
As a result of consumer interest,
organic cotton fiber is used in
everything from personal care items
(sanitary products, make-up removal
pads, cotton puffs and ear swabs), to
home furnishings (towels, bathrobes,
sheets, blankets, bedding), children's
products (toys, diapers), clothes of all
kinds and styles (whether for lounging,
sports or the workplace), and even
stationery and note cards.
In addition, organic cottonseed is used
for animal feed, and organic cottonseed
oil is used in a variety of food products,
including cookies and chips.
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