Welcome

MANSOURA UNIVERSITY FACULTY OF APPLIED ARTS

NAME: HEBA IBRAHEM EL.MAHDYDEPARTMENT: PRINTING OF TEXTILE

4TH YEAR

Antimicrobial Finish

MAIN POINTS:

-Introduction Of Antimicrobial Finish-Properties Of Antimicrobial Finish-Mechanisms Of Antimicrobial Finish-Chemistry Of Antimicrobial Finish-Evaluation Of Antimicrobial Finish-Troubleshooting Of Antimicrobial Finish-conclusion

-Tow Different Aspects Of Antimicrobial Finish:

Introduction

The Most Trouble

Causing Organisms

Fungi Bacteria

Fungi Causing Discolorati

on – Colored Stains-Fiber

Damage

Bacteria Causing Some Fiber Damage –Unpleasant Odour-Slick,Slimy Feel

cotton

wool

Fungi

Bacteria

Fungi

Antimicrobial Finish Are

Important For

-Properties Of Antimicrobial Finish

Ideal Condition For Growth Microbes (36-40c) (PH 5-9)

Antimicrobial Finish Must Be:

Kill or Stop Growth Microbes quike reactive Safe For Manufacturer And ConsumerEasily To ApplyCompatible With Other Finishes Wear Comfort Low Cost

Mechanisms Of Antimicrobial Finish:

Controlled Release

Mechanism

But

It Will Be Effective Against Desirable Microbes On Fiber Surface Or In Surrounding Environment

Reservoir Will Be Depleted

Chemically Bound To Fiber surface:

No Bad Effect In Surrounding Environment Desirable Microbes

More Durable

Chemistry Of Antimicrobial Finish

Antimicrobial Finish -Controlled Release

Prevented products such as copper naphthenate

Because Of Their Toxicity

Other Antimicrobial limited products

Because Of Their Application And Durability

problems

Commonly name

triclosan

One Of The Most Widely used

Antimicrobial products is

Triclosan Using

Toothpastes, Liquid Hand Soap And mouth washes

Butvery low

water solubility

Need Binder And dispersing

agents

Antimicrobial Finish for Chemically Bound

Chitosan

Chitosan is

Inexpensivenatural waste

non toxic

ApplicationsMicro encapsulation –reactive bonding to cellulose –cross linking

-Evaluation Of Antimicrobial Finish:

The agar based zone test

Bacteria counting test

Rapid test by Adenosine triphosphate ATP

-Troubleshooting Of Antimicrobial Finish

Stiff hand

Color change Destroyed desirable microbes

Environmental problems

conclusionIntroduction Of Antimicrobial Finish-Properties Of Antimicrobial Finish-Mechanisms Of Antimicrobial Finish-Chemistry Of Antimicrobial Finish-Evaluation Of Antimicrobial Finish-Troubleshooting Of Antimicrobial Finish -New Infomations

ANY

QUESTIONS?