automative textiles

8/13/2019 Automative Textiles

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AUTOMOTIVE TEXTILES

PRESENTED BY ABHINAV THAKUR


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INTRODUCTION

What are technical textiles?

Textile materials and products manufactured

primarily for their technical performance and

properties rather than their aesthetic and

decorative characteristics.

Why automotive textiles are technical textiles?


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Automotive Textiles Market

Global consumption

is over 4.5lac tons.

Largest consumption

sector of technical

textiles (Rs 5145

Crore in India)0

1000

2000

3000

4000

5000

6000

2007-08 2012-13

crores


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COMPONENTS

VISIBLE

Seat covers

Seat belts

Carpets Headliners

CONCEALED

Air bags

Tyre cords Hoses and belts

Filters


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SEAT COVERS

Properties required-

Strength

Resistance to sunlight (UV)

Abrasion resistance

Reduced flammability

Odor free

Anti static

Soil resistance


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Composition of seats

It is a tri laminate

consisting of-

Face fabric

Foam

(foam density 26-

45kg/m3

)

Scrim lining for back


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Quality control and testing of seat

covers Accelerated ageing

Abrasion resistance

Color fastness

Flammability

Strength

Resistance to micro organisms

Surface resistivity

Soil resistant Fogging

odour


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Accelerating ageing standards

Standard Temperature RH% Wavelength Exposure

hours

Minimum

requirement

on grey scale

SES N3295 89+-3 50+-5 300-400 185 3

HES D6506 89+-3 50+-5 300-400 354 3

Mahindra/

TSL 2100 G

89+-3 50+-5 340 250 3


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SEAT BELTS

Multilayer woven narrowfabrics

Maximum yarn packing in agiven area for maximumstrength

HT PET yarns (320 ends of1100 dtex or 260 ends 1670dtex and weft 550dtex)

Softer and flexible alonglength

Rigidity along width


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Quality requirements for seat belts

Width BS standards-46mm for adults, 38mm forchildren having weight 18-36kg and 25mm for 9-18kg.

Static load bearing capacity upto1500kg

Extensibility up to 25-30% Abrasion resistance

Rubbing fastness

Microbial resistance

Light and heat resistance

Finished product having resistance to fastening andunfastening 10,000 times


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Fabrics for airbags

High bursting strength

Hot gases must not penetrate the fabric

Flame retardancy Reduced skin abrasion

Compact folding ability


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Air bag fabric quality requirement

High bursting strength and be capable of being

folded up into a confined space for over 10

years without deterioration.

Some tests require 75% property retention

after 4000 hrs at 90-1200C,the equivalent of

10 yrs.

Cold cracking resistance down to -400C.


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HEADLINERS

It is a multilayer construction- Decorative face fabric

PU foam

Chopped glass mat

Semi rigid PU foam (corematerial)

Chopped glass mat

Non-woven scrim fabric

All layers are hot pressed withthermo plastic powder/film


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HeadlinerRequirements

Important requirements are

Light-weight, thin profile

Dimensional stability Aesthetically pleasing and soft touch

Anti soiling property


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CARPETS

There are about 3.5-4.5 m2of carpet in each

car.

Carpets tufted are mainly developed from

bulked continuous filament nylon yarns

whereas needle-punched are mainly from

polyester or polypropylene.


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Carpet structure

Layer Material used

Top decorative layer Tufted nylon or polyester

Thermo formic layer Polyethylene powder

Acoustic layer Heavy layer of shoddy

fibers


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PARCEL SHELVES

Requirements-

UV resistance

Thermal resistance Polypropylene

needle-punched

fabrics used, aretypically of 210g/m2

weight to 298g/m2.


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BONNET LINERS

Main constituent isshoddy fabric laminatedon both sides by non

woven fabric Non woven of polyester

or polypropylene is used

Side facing the engine

must be resistant to fluidslike oil, fuel, wind screencleaning fluids


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BELTS

Requirements-

High tensile strength

Excellent shockresistance

Low extensibility


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TYRE CORDS

Unidirectional arrangement of cords

sometimes with a small number of weft

threads.

Formed by twisting the yarns together.

Radial tyre consists of 4-7% textile weight of

its original weight.


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Essential requirements

High toughness

High tenacity

Thermal stability Low elongation

Low moisture regain

Strong bond formation with rubber


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CABIN AIR FILTERS

Non woven are used which workas-

Mechanical filtering the particles

Impart electrostatic charge to

fibers Use of activated carbon

Filter non woven is used inpleated form.

It should be odor free, resistant tomicro organisms and extremetemperatures.


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OTHER APPLICATIONS

Noise control units

Sun visors

Boot lining Dash board

Tarpaulins


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REFERENCES

Handbook of technical textiles,Edited byA R Horrocks and S C Anand

www.technotex.gov.in

www.technicaltextile.net Textiles in transportation, by NITRA

Shivendra Parmar and Tanveer Malik,Application of textiles in

automobiles
http://www.technotex.gov.in/http://www.technicaltextile.net/http://www.technicaltextile.net/http://www.technotex.gov.in/


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