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A PRESENTATION BY

GOURABMONDAL

TUSHAR

KUMAR

Bulletproof jackets

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Introduction..

Bulletproof fabrics are made of extremely strongmaterials

It is a functional fabric .

Made of a material called kevlar

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What is kevlar ?..........

Kevlar is a strong material .

Its strength is in the process of weaving a liquid into a

solid in tiny spider webs.

The weave that makes bulletproof vests is kevlar29 .

Note : nomex and kevlar are tradenames ofDuPont

for aramid fibres introduced in 1963

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Uses of kevlar

Brake pads replacing asbestos.

Boat hull cloth.

Protection against tornadoes in shelters.

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Manufacturing process

Kevlar is made up ofaramid fibres.

Chemical designation :

polyparaphenylene terepthalamide

obtained from monomers ofterephtaloyl dichloride

& paraphenylene diamine

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Manufacturing process..Polyparaphenylene

terepthalamide

Kevlar fibres

Passing by perforated

plates

Weaveable yarn

twisting

Fabric (30m min.) Panel frame

Plain weave

Markingsilhouette

Panel frame cloths

1.Laser

cutting2.workforce

Weaved jacket

Accessorizing by

straps

Sewing layers

together

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Manufacturing process

Finishing the product :-

it includes checking & quality control of the

vest

all tests such as yarn strength, elasticity &

others that are done for all fabrics are done

it is checked for defects by NATIONALINSTITUTE FOR JUSTICE (N.I.J.)

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Properties of aramid fibres.

Density : 1.44gm/cc

Filament diameter: 12 micron

Tensile strength: 1.950 mn/tex

Tensile modulus: 5.5n/tex Elongation: 3.3 %

Heat resistance: 90%

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Properties contd.

Thermal expansion coeff. :

linear : 3.5 * 10^6/k

transverse : 50 * 10^6/k

sp. Heat : 1420 j/Kg kdecomposition temp:500 degree centigrade

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Chemical properties.

Continuous operating temp. : 204

Moist heat : 177

Surges: 220

Combustion : no

Alkali resistance : good

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Chemical properties contd..

Mineral acids resistance : fair

Organic acid resistance : fair

Solvent resistance : very good

Relative cost : 5*cotton

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Sources in India 1 Vijay Sabre Safety Pvt. Ltd. Manufacturer & exporter of breathing air cylinder

trolley unit, medical equipments

Address :

35, Chandivali Village, Off. Saki Vihar Road, Andheri(West),

Phone :

91-22-28474045/87/85/28475488/28475036/28574045/28478785

Mobile :+919574818967

Fax :

91-22-28470021

http://www.tradeindia.com/Seller-1009027-VIJAY-SABRE-SAFETY-PVT-LTD-/http://www.tradeindia.com/Seller-1009027-VIJAY-SABRE-SAFETY-PVT-LTD-/http://www.tradeindia.com/Seller-1009027-VIJAY-SABRE-SAFETY-PVT-LTD-/

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Sources in India .2 Proeye Protection World Pvt. Ltd. bulletproof jackets & vests, bomb blankets, boom

barriers, traffic monitoring & control equipment,phone recorders, conference systems

Address :

S.C.O. 51-52, Sector 8-C, Madhya Marg, Phone :

91-172-2780584

Mobile :

+919872201202 Fax :

91-172-2546809

http://www.tradeindia.com/Seller-3172918-Proeye-Protection-World-Pvt-Ltd-/http://www.tradeindia.com/Seller-3172918-Proeye-Protection-World-Pvt-Ltd-/http://www.tradeindia.com/Seller-3172918-Proeye-Protection-World-Pvt-Ltd-/http://www.tradeindia.com/Seller-3172918-Proeye-Protection-World-Pvt-Ltd-/

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Varieties of bulletproof vests

Military Bul Bulletproof Vest

The Force Wears Indian Armour Military Vest is designed as a

high-mobility front opening vest to be worn over a soldiers

uniform...

Category: Security & Protection | Bullet Proof Vest

Related Keywords: Military Vest

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Variety 2

BulletProofVestfor concealed security, wearable under a

shirt...

Category:Security & Protection|BulletProof VestRelated keywords: |Bullet Proof Vest

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Other Varieties.

Full Body Armour -BulletProofVests

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Other types.

CommandoVestBulletresistance jacket with two hard armourpanel and soft armour panel comply NIJ

Standard and ea...

Brand Name:Bulletproofjacket

BULLETPROOF WEST &

HELMETS

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Users

Politicians

Business leaders

Police

People in life threatening situations Security guards

Army & intelligence

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conclusion

The bulletproof vests are available in varioussizes according to threat level. They are II ,IIA,III

& IIIa

Though bulletproof jackets are available in India

the standards given to the police is very low as a

result it reduces their effectiveness

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