The Applications of Nonwovens in Technical TextilesBy Muhammad Kamran Iqbal
Outline Technical Textiles Classification of technical textiles
Nonwoven in technical textile Nonwoven Applications Advantages
Important market sectors for Pakistan Agrotech Geotech Medtech
Other Asian countries China India
Technical Textiles The Textile Institute, textile terms and definitions, defines; textile materials and products manufactured primarily for their technical and performance properties rather than their aesthetic or decorative characteristics.
Technical TextilesTechnical textiles is not a single coherent industry market segment
Classification of Technical Textiles by Applications Techtexil defines 12 main application areas;
Scope of Technical Textiles The global demand for technical textiles is projected to increase from US$75billion (2006) to around US$130 billion (2010). World market of technical textiles is projected the annual growth rate of 3.6%. Volume growth will average between 4% - 5% per annum to year 2010. Asia is expected to account for 45% of the market share in 2010.
World Consumption of Technical Textiles
Nonwoven in Technical Textiles To improve textile properties Durability, breathability, water repellency, fire retardancy, antimicrobial properties and barrier properties etc.
Nonwoven accounts for about 40% of technical textiles in terms of tonnage.
What is Nonwoven ASTM defines Nonwoven as; A textile structure produced by bonding or interlocking of fibers, or both accomplished by mechanical, chemical, thermal or solvent means and combination of there of.
It can also be defined as A fabric made directly from fibers or from the chemicals from which the fibers themselves are made.
Nonwoven Nonwovens are Engineered Fabrics Nonwovens are manufactured by high-speed, low-cost processes Large Volume, Lower Cost than traditional processes
Applications of Nonwoven
Advantages of Nonwoven
Advantages of Nonwovens for Technical Applications Fabrics made by nonwovens technology can be made up to five times more durable than conventional textile fabrics of the same weight. Some fabrics can withstand extremely high temperatures -silica materials can be used up to 1100c. Nonwoven webs have high barrier properties; they can filter almost anything ranging from macro to nano scale particle sizes.
Advantages of Nonwovens for Technical Applications Its resistance to tears, soil, chemical, mildew, rot, freeze/thaw conditions Excellent strength, breathability and barrier properties
Advantages of Nonwovens for Technical Applications Easily customized Acoustic insulation Abrasion resistance Appealing integrity Cost effective
Important Sectors for Pakistan GEOTECH Growth and development of infra-structure
MEDTECH Health, hygiene and medical use
AGROTECH Agricultural country- lucrative scope for investment.
GEOTECH Three main properties required Mechanical response Filtration ability Chemical resistance
Raw materials used Mainly Polyolefin and Polyester
Nonwoven technology Staple fiber needlepunch Spunbond needlepunch
AGROTECH Areas of application Horticulture, animal husbandry, and farming
Important requirement for Agrotech Weather resistant Microorganism resistant
Use of nonwoven reduces the need for pesticides and keeps manual labor to a minimum
AGROTECH Raw material used Mainly PET and PP Nonwoven technology Spunbond needlepunchGood control over porosity and permeability of the structure
MEDTECH Why Nonwovens for Medical Products? Excellent Barrier Performance Superior Efficiency Increased Protection for the User Less Potential for Cross-contamination Water/oil repellency Disposability Comfort
MEDTECHRequirements for the fiber
Must beNon-toxic Non-allergenic Non-carcinogenic
Must be ableTo sterilized without imparting any change in the physical or chemical characteristics
MEDTECH Natural and Regenerated High absorbency Green
Microfibers Soft handle Flexibility Smooth surfaces
Synthetic Fibers Strength Solvent resistance Antimicrobial properties
MEDTECH Nonwoven Technology SpunlacedUltra-strong Highly absorbent Low-linting Solvent resistant
Spunbond/Meltblown/ SpunbondBarrier Properties Comfort Water vapor transmission
MEDTECH Cotton in nonwoven Highly absorbent of body fluids, blood and other fluids Naturally breathing fiber (prevents the passage of fluids), but lets gas and water vapor pass Easy to launder and to be sterilized Dimensional stability and strength even at temperatures of up to 175C Biodegradable
Some Cotton Nonwoven Products Personal Care/Hygiene Medical
Baby diapers Feminine hygiene products Adult incontinence products Dry and wet wipes Cosmetic removal pads Nursing pads Nasal strips Disposable underwear
Disposable caps Gowns Masks Shoe covers Drapes Wraps and packs Sponges Dressings and wipes Under pads Heat packs
Other Asian Countries Asian nonwoven market will grow at a rate of 9.6% per annum Key players for Asia are China and India
Palm Jumeirah Islands in Dubai can only be built with the use of extremely durable nonwovens
CHINA Spending on nonwoven is growing at 30% a year China has more than 600 nonwoven manufacturing companies The growth rate of geononwoven is about 15%
INDIA Overall technical textile market will grow at a rate of 10% By 2012, India will be the largest consumer and producer of technical textiles and nonwovens in Asia In the last 3 years, the market size for technical textiles and nonwoven has increased almost $2.3bn, in which 93% was domestic market
In India, geotextiles was placed between the subbase of black cotton soil- acting as a reinforcing layer Preventing the formation of ruts Road was built in 2004
Very light, flexible sheets are laid over seed beds, creating a microclimate in which the heat and humidity are controlled. Plant growth is accelerated, and the plants are protected from adverse weather conditions and vermin.
Despite the current difficult economic climate, the nonwoven industry remains a strong and growing market with nearly every producer reporting sales growth and several announcing expansion plans in a number of technologies.
Acknowledgment Textile Research and Innovation Center Textile Institute of Pakistan Pegasus consultancy (Pvt.) Ltd.