Sunday, January 07, 2007

Textiles Applications in Automotive Industry

With the rising level of automobile production and its corresponding worldwide stocks based on the rapid industrialisation in Asia, Africa and Latin America plus the rising demand in Eastern Europe, the proportion of textiles in a motor car is increasing in response to more stringent comfort and safety needs in industrialised countries like the USA, Japan and Western Europe.

Automobile textiles, which are non apparel textiles, are widely used in vehicles like cars, trains, buses, aircrafts and marine vehicles. Hence, the term automobile textile means all type of textile components e.g. fibers, filaments, yarns and the fabric used in automobiles.

Nearly two third of the automobile textiles are for interior trim, i.e. seat cover, carpets and roof and door liners. The rest is utilized to reinforce tyres, hoses, safety belts, air bags, etc.

It is projected that nearly 45 square meters of textile material is utilized in a car for interior trim (seating area, headlines, side panel, carpet and trunk). According to a survey, the percentage of textile in a motor car amounts to 2 per cent of the overall weight of a car. Apart from this, visible textile components, eliminating hidden components such as in tyres and composites, hoses and filters; amount to 10-11 kg per vehicle in absolute terms. Industrial textiles are largely utilized in vehicles and systems including cars, buses, trains, air crafts and marine vehicles. In automobile textile industry, four types of fabrics are used, namely:

. Air bag fabrics
. Fabric used as a basis for reduction in weight of body parts
. Tyre cord fabrics
. Automotive upholstery and other textile fabrics used inside the vehicle

The airbag and seat belts used as safety measures are one of the latest types of textiles in automobiles and have a potential market for technical textiles that has a considerable scope for growth and development. Because of government legislation and consumer interest, the applications have been extremely successful over the last ten to fifteen years.

In the last decade, airbags or inflatable restraints have received noteworthy significance as a safeguard for the driver and the passengers in case of an accident. Initially, the bags were made for head-on collision, but now, there are many other safety devices like side impact bags, knee bolsters, side curtain, etc, available for safety in any type of crash. Because frontal collisions are a main reason of accidental deaths, airbags are being presented as a standard product in vehicles by legislation, which has given the quick increment of airbags business in the last decade. NHTSA and HHS report that airbag systems have played an important role in saving thousands of lives since 1985. In 2002 alone, due to the airbag system a 20 per cent reduction in fatalities resulting from fatal collisions has been observed.

In 1999, there were 55 million vehicles with 81 million airbags. In 2004, the number of frontal airbag units was nearly 100 million and the number of side-impact airbags nearly 65 million. In the same year, nearly 23 per cent of the new vehicles in North America had side airbags for chest protection and 17 per cent had side airbags for head protection. By 2005, this has increased to 180 million airbags and 65 million vehicles.

Fabric application demand has increased to 325 million square meters in 2005, and 83 tons of fibre, mostly nylon has been used.

The world airbag market is estimated to rise from 66 million units in 1996 to over 200 million units in 2006, a compound annual growth rate of 12 per cent. Over this decade, Europe will put in 60 million units, Asia-Pacific 30 million units and North America 24 million units.

While North American and Western European markets are growing, considerable development is also seen in the international market. As new applications are developing for airbags, including rear seat bags, inflatable seat belts and an outside airbag system for pedestrians, new fabrics and combinations are being applied. The front and passenger bags have different requirements because of the distance from the occupant, but they both have rapid increment and deflation in a very short time span.

Rollover bags must remain inflated for five seconds. In addition to new uses, expected trends include lighter fabric for use with newer "cold inflators," blended with materials like fabric and film, new coating polymers (Silicone now dominates having replaced neoprene).

Growth of safety devices in the car interior

Increasing electronics and safety devices require more space in the interior together with new concepts for arrangement.

Worldwide market for PA airbag yarns

The fibre manufacturer Accordis Industrial Fibres BV, Arnhem/ Netherlands reported that the global market for PA airbag was 84,000 tons in 2005.

Airbags

Airbags were first introduced in the late 1960s, but it is only in the 1990s that their use increased amazingly and it is set to grow further. This validates the research and development still being made on design, deployment and base fabric material.

The prospects for the textile and making-up indus¬tries are huge in the area of airbag production. This is due to its large requirement particularly in view of the legislation, which is already imposed by many countries.

Around 1.42 meter2 of fabric is required to produce driver¬ side airbags on light trucks. This estimation gives the idea that the airbag market is of great importance for the use of technical textiles. Airbags are normally made by coated or uncoated fabrics of PA 6.6 yarns with lesser air permeability.

A fabric cushion is included as a part of textile ingredient for an airbag, which is folded into the center of the steering wheel (for the driver) or in the glove compartment (for the front seat passenger). Generally, the bag is woven by nylon 6, 6 filament yarns, which are in demand in huge quantities because of their high strength-to-weight ratio, favorable elongation, adequate thermal properties and relatively low cost of production. Other properties required are high tear strength, high anti-seam slippage, controlled air permeability and be capable for being folded into confined places for over ten years without deterioration.

With the rising level of automobile production and its corresponding worldwide stocks based on the rapid industrialisation in Asia, Africa and Latin America plus the rising demand in Eastern Europe, the proportion of textiles in a motor car is increasing in response to more stringent comfort and safety needs in industrialised countries like the USA, Japan and Western Europe.

Automobile textiles, which are non apparel textiles, are widely used in vehicles like cars, trains, buses, aircrafts and marine vehicles. Hence, the term automobile textile means all type of textile components e.g. fibers, filaments, yarns and the fabric used in automobiles.

Nearly two third of the automobile textiles are for interior trim, i.e. seat cover, carpets and roof and door liners. The rest is utilized to reinforce tyres, hoses, safety belts, air bags, etc.

It is projected that nearly 45 square meters of textile material is utilized in a car for interior trim (seating area, headlines, side panel, carpet and trunk). According to a survey, the percentage of textile in a motor car amounts to 2 per cent of the overall weight of a car. Apart from this, visible textile components, eliminating hidden components such as in tyres and composites, hoses and filters; amount to 10-11 kg per vehicle in absolute terms. Industrial textiles are largely utilized in vehicles and systems including cars, buses, trains, air crafts and marine vehicles. In automobile textile industry, four types of fabrics are used, namely:

. Air bag fabrics
. Fabric used as a basis for reduction in weight of body parts
. Tyre cord fabrics
. Automotive upholstery and other textile fabrics used inside the vehicle

The airbag and seat belts used as safety measures are one of the latest types of textiles in automobiles and have a potential market for technical textiles that has a considerable scope for growth and development. Because of government legislation and consumer interest, the applications have been extremely successful over the last ten to fifteen years.

In the last decade, airbags or inflatable restraints have received noteworthy significance as a safeguard for the driver and the passengers in case of an accident. Initially, the bags were made for head-on collision, but now, there are many other safety devices like side impact bags, knee bolsters, side curtain, etc, available for safety in any type of crash. Because frontal collisions are a main reason of accidental deaths, airbags are being presented as a standard product in vehicles by legislation, which has given the quick increment of airbags business in the last decade. NHTSA and HHS report that airbag systems have played an important role in saving thousands of lives since 1985. In 2002 alone, due to the airbag system a 20 per cent reduction in fatalities resulting from fatal collisions has been observed.

In 1999, there were 55 million vehicles with 81 million airbags. In 2004, the number of frontal airbag units was nearly 100 million and the number of side-impact airbags nearly 65 million. In the same year, nearly 23 per cent of the new vehicles in North America had side airbags for chest protection and 17 per cent had side airbags for head protection. By 2005, this has increased to 180 million airbags and 65 million vehicles.

Fabric application demand has increased to 325 million square meters in 2005, and 83 tons of fibre, mostly nylon has been used.

The world airbag market is estimated to rise from 66 million units in 1996 to over 200 million units in 2006, a compound annual growth rate of 12 per cent. Over this decade, Europe will put in 60 million units, Asia-Pacific 30 million units and North America 24 million units.

While North American and Western European markets are growing, considerable development is also seen in the international market. As new applications are developing for airbags, including rear seat bags, inflatable seat belts and an outside airbag system for pedestrians, new fabrics and combinations are being applied. The front and passenger bags have different requirements because of the distance from the occupant, but they both have rapid increment and deflation in a very short time span.

Rollover bags must remain inflated for five seconds. In addition to new uses, expected trends include lighter fabric for use with newer "cold inflators," blended with materials like fabric and film, new coating polymers (Silicone now dominates having replaced neoprene).

Growth of safety devices in the car interior

Increasing electronics and safety devices require more space in the interior together with new concepts for arrangement.

Worldwide market for PA airbag yarns

The fibre manufacturer Accordis Industrial Fibres BV, Arnhem/ Netherlands reported that the global market for PA airbag was 84,000 tons in 2005.

Airbags

Airbags were first introduced in the late 1960s, but it is only in the 1990s that their use increased amazingly and it is set to grow further. This validates the research and development still being made on design, deployment and base fabric material.

The prospects for the textile and making-up indus¬tries are huge in the area of airbag production. This is due to its large requirement particularly in view of the legislation, which is already imposed by many countries.

Around 1.42 meter2 of fabric is required to produce driver¬ side airbags on light trucks. This estimation gives the idea that the airbag market is of great importance for the use of technical textiles. Airbags are normally made by coated or uncoated fabrics of PA 6.6 yarns with lesser air permeability.

A fabric cushion is included as a part of textile ingredient for an airbag, which is folded into the center of the steering wheel (for the driver) or in the glove compartment (for the front seat passenger). Generally, the bag is woven by nylon 6, 6 filament yarns, which are in demand in huge quantities because of their high strength-to-weight ratio, favorable elongation, adequate thermal properties and relatively low cost of production. Other properties required are high tear strength, high anti-seam slippage, controlled air permeability and be capable for being folded into confined places for over ten years without deterioration.