Microorganisms in carpets



In a world where textile production and fabric weaving is increasingly automated, hand woven and hand-knotted carpets and rugs are masterpieces which are pricey. Rugandcarpetpedia.com provides a lot of important information on new research studies conducted on microorganisms affecting the quantity and quality of carpets and rugs. It would also provide an insight in new loom for Indian carpet weavers, carpet culture related with people, and those interesting rugs and carpet museums in the world.

Carpet cleaning is considered to be an important task pertaining to protection of health when factors like activity management, design and ventilation of all indoor pollutants like gases, particles, and biopollutants at sanitary levels, and source control. It is done by various energy efficient carpet cleaning methods which would do maximum extraction and minimum traces of unwanted matter.

Latest studies have concluded that many commercial and residential carpets and rugs are perceived as home to illness, asthma, and allergies. It is been thought to promote as a habitat of microorganisms in the indoor environment.


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Present Research Studies on effectiveness of Treatment Solutions

Very little is found research on current status of micro-organisms in carpets. Most of the studies were carried out on rooms with carpets and without carpets. It was done in order to compare between the density levels of microorganisms within two categories made.

Earlier, carpet and rugs were hand woven with natural fibers or a blend of them to provide strength. Nowadays, modern technology has facilitated more options as carpet fibers for yarns. Commercial carpets today are seen woven with fibers like nylon, polypropylene, polyester and SBR. An advantage of such manmade fibers is that they do not support any growth of microorganisms in carpets. In addition, they repel moisture and contradictory to natural ones.

Natural fibers such as jute, wool and silk, are susceptible to microorganism attack. Jute, relatively resistant to microorganism, deteriorates fast when moisture laden. It acts as a food source for them. Presence of pests and microorganisms in carpets could be a sign of them feeding on the natural fibers. However, of the carpets are made with synthetic threads then it is a sign that either the carpet is providing a pathway to the food source or there is a spill on it. Overall, there is a very little possibility of presence of such notoriety in modern carpets.

Another study established the effectiveness of the treated carpets with the help of a field study. Two specimens but single type of carpets was installed in two classrooms in an elementary school in North Florida. The commercial carpets consisted one of them to be treated and the other untreated. Both of them had the pile yarn made of nylon. And the antimicrobial finishing was selected to have antimicrobial activity on fungi, not bacteria. The conditions to which both the carpets were introduced were chosen to be of high temperature and high humidity.

After a set period of exposure and experimentation, it was seen that the treated carpets had fewer fungal growth than untreated carpet samples. Therefore, it is established that antimicrobial treated carpets are resistant to fungal species growth.

Such studies like this also facilitated development of such antimicrobial solutions or formula for use in carpet industry too. Such formulas were favored for effective fungal and bacterial resistance initially and post cleaning. Recorded and compared figures showed that chemically treated carpet, when compared with untreated carpet, showed approximately an 80% reduction in the growth rate of microorganisms like bacteria S. aureus and E. coli. The reduction of fungi levels was recorded ranged from 12% to 40% after 10 shampoo cleanings at 6, 12, and 24 hour contact times.

The procedure consisted of 10 shampoo cleanings at 6, 12 and 24 hour contact times. Such impressive working has initiated a U.S. patent for this chemical applied for through the University of Georgia Research Foundation.

Below is a tabular form of contribution of rugs and carpets towards a healthier environment.

Essential Environmental Design Factor




Health care

Useful Space

Flexible, cost

effective floor

covers, seating and

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Always on Time

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working area,

additions, restored

areas, basements

Auxiliary work

space, flexible,

rapid change cost

effective, highly

adaptive area


Flexible, cost

effective, primary

work area,

standing, sitting,


Enhances personal


compared to other

floor covers



nurseries, halls

Slippery, hard

floor alternative

Slippery, hard

floor alternative,

impact reducer

Slippery, hard

floor alternative

especially in halls

and common areas,

impact reducer


Color, patterns,


Corporate image

Color, inviting.


Color soothing,




Softening, casual

Softening, secure

Softening, secure


Low albedo

Low albedo

Low albedo

especially in

highly naturally

lighted schools

Low albedo, stress



Vibration control


controlled work


Noise control

essential in school

and not possible

without carpet

Vibration control,



Climate control

Insulator, heat

sink, air resistant

Insulator, heat

sink, air resistant

Insulator, heat

sink, air resistant

Insulator, heat

sink, air resistant




Vacuuming and

Cost Effective


Vacuuming and

Cost Effective


Vacuuming and

Cost Effective


Indian Carpet weaving Loom Structure

Weaving loom structure improvised by Studies Conducted

Historical looms all over the world, especially in India has been in the form of wood, which are susceptible to termite attacks and low service life. It required a strong manual pull through a rope by 2-3 persons. To change such a tiring procedure of weaving textiles and carpets, an improved form of a loom was constructed.

The improvised form was developed at IIT Delhi, 2001, which facilitated weaving easy. However, the cost of the loom is more. This very design is designed as such to be light weight and at reduced cost. It is being verified using the Finite Element Analysis software, ANSIS.

The department of Mechanical Engineering, IIT Delhi's Himanshu Chaudhary and Subir Kumar Saha's efforts has been accepted widely. In spite of extensive weaving of carpets done by automated means, handmade carpets always demand high prices. This is due to the no presence of better kind of the carpets and rugs than carpet made by hand.

It is being found that carpet weaving is quite different than textile weaving, in general. In addition, Indian or Oriental carpets woven on wooden looms become economically, environmentally, and functionally non-viable due to the following reasons:

* Limited carpet life (5-8 years) due to exposure to termites and high investing maintenance.

* Deforestation

* Arduous manual tensioning, as high tension in warps as per rope arrangement, and

* With time wooden beams gradually bend which create non-uniform tension in the warps over the time. Non-uniformity changes caliber of the carpet.

India's major carpet manufacturing locations such as Bhadohi, Mirzapur, Jaipur, Srinagar etc, has been the places for testing of the new loom type. The carpet loom has been designed by considering all aspects of weaving a carpet. The new carpet loom is a metallic frame attached with a worm and worm wheel to develop tension in the wheel.

Carpet Culture and People

Popular carpet types with all cultures of people

There are a lot of things and ideas in merging in our head while considering buying a new carpet. Moreover, there are different options to go for. Fascinatingly, carpets come in different shades and hues, styles and patterns, and designs and motifs etc. In addition, there are many kinds of quality carpets to be bought as well.

Nevertheless, modern day carpets look forward towards two most popular carpet types named loop pile and cut pile carpet. To recall, loop pile carpets sport a carpet pile with looped threads. It has threads pulled through the backing, twice creating a small loop. The specimens for this fashion are Berber carpet, cable or sisal.

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Cut Pile carpets are woven with the same technique as loop pile on. But after the weaving is done, loops are clipped. The loop cut at the top makes the strands stand all individually. Cut pile is seen in many in vogue styles such as shag carpets, textured carpets, Saxony, and velvet.

According to a premier portal for information about old rug and carpets, Rugrag.com, one of the most expensive carpets in the world is The Pearl Carpet of Baroda. It was sold at a World Record $5,458,500.00 USD. It exceeded the previous record set by one million dollars for a Safavid rug in a 2008 Christies sale of the Doris Duke Isfahan.

Sotheby's much prized possession was a pearl studded carpet which was auctioned in 2009. Believably, a gift for Prophet Mohammad's Tomb in Medina, from the King of Baroda, it was estimated to be around 1.4 million + Basra pearls attached to its surface. It also consisted of gemstones like hundreds of rubies, diamonds, sapphires, and gold.

It was woven in year 1865 and was priced at Rs. 6,000,000 or $ 120,000. According to the Sunday Tribune, the Carpet's measurement is approximately 5'8" x 8'8". An actual gift with a true Maharaja style!

Another example of once in a lifetime, crème of the crop, carpet specimen is the Persian Carpet called "The Spring of Khosrow" from 6th century AD. Featuring similar exquisite gemstones, it was roughly larger than the Baroda carpet, it was looted during the Arab Invasion and cut into pieces by the soldiers.

Talking about the movie industry which has never been away from the glamour quotient, especially flicks portraying affluence and grandeur. The Movie "The Queen", 2006 Academy Award Winning for Best Actress featured an exemplary looking newer looking rug variety, perhaps, traditional Persian Mahal Design or Indian Amritsar design carpet. It is believed to be a Jaipur rugs model.

Jaipur rugs come with a soft yet timeless touch of comfort with quality. Colors displayed are from either bold or heavy contrast or antique and earthy. Moreover, they cost a fairly expensive price. Mostly hand-woven, there was a Jaipur carpet featured in the movie too.

A large rug and stair rugs can come with intricate designs with Persian motifs, on demand. With more exemplary design or motif, it becomes quite uncommon yet intriguing to face such a beauty.

Rugs and Carpet Museums

The famous collections to awe-inspire along with educate about carpets and rugs

Museums have been sometimes boring but not carpet and rugs museums. Carpet museums with a seemingly endless collection of world famous rugs and carpets all over the world, simply create a sense of charisma. Charming and luxurious ones representing all cultures keep them alive in the contemporary carpet world. Below is the list of the various famous carpet and rug museums in the world.

* The Carpet Museum of Iran
* Istanbul Turkish and Islamic Arts Museum, Turkey
* Isparta Museum, Turkey
* Museum of Fine Arts , United States
* The Fogg Art Museum, United States
* The British Museum, United Kingdom
* Victoria and Albert Museum, United Kingdom
* Museum Fur Islamische Kunst, Germany
* Rassam Arabzadeh Carpet Museum, Iran