Antibacterial clothes and fibers

Nanosilver technology and its application in textile industry textile industry is one of related industries to people health in all age and social groups .nanosilver is one of nanotechnology products with high utility, that is known for its antimicrobial properties, it can remove more than 650 bacteria, virus and fungi species as a catalyst, besides, it doesn’t cause any allergy. By using nanosilver ,textile will be given some special properties that lead to improve utility and decrease final cost rather than common methods for antibacterializing textile. nanosilver in comparison with other antimicrobial methods (like using chemical materials) has more durability and efficiency and there is no need to any other special equipment during common process of textile industry. Nanosilver can be used in many particular applications like clothing utilized in hygiene, sport, military industries, moreover, because of capability of removing micro-organisms adding nanosilver to products is becoming a distinction.

One of the characteristics of Nanocid products is their application in  fibers and clothes, and when they are produced in this way, have the following special ties:

	Antibacterial, antifungal-antivirus
	Decreasing unpleasant odor
	Anti static
	Keeping skin biologic balance and hygienic succulence of products during sport activities.
	Stability of above characteristics, even after 10 times washing.

According to the above points, antibacterial fibers and clothes have a vast and various usages as the following:

	Yarn (artificial and natural yarn, delicate yarn, bi/poly component yarn, nanofiber…)
	Textile
	Non- woven textile ( possibility of using nanosilver in meltblown, spunbonded, …process)
	Clothing ( using clothing or hygiene, sport, military clothing)
	Bandage
	Carpet
	Polymer films
	filters

applications:

	usual clothing ( under wear , shirt, T-shirt, overalls, socks, gloves, towel, child cloths)
	medical textile ( hygiene textile, bandage and wound dressings, gown and lab or surgery room covers)
	military textile ( clothing , tent and pavilion…)
	sports clothing ( sky clothing, swimsuit…)
	domestic and bedight textile ( carpet, furniture, curtain, tablecloth…)
	all filters, (air filters, cooler filter, mask, water filteration,…)
	textile used in packaging industry

Utilizable percentage of nanosilver:

Dose of mixing depends on kind and final usage of goods, is determined case by case.

Consumption procedure:

In order to antibacterialize goods, according to the kind of goods and producing process of them, nanosilver can be used in suitable phase, it needn't extra equipments. Natural: yarn can be antibacterial before or after changing into textile, and about artificial yarn, nanosilver can be added to melted polymer in extruder or masterbatch containing nanosilver can be used. Adding nanosilver (based on nanotitan), beside antibacterialize yarn, increases (specific gravity) and it causes improving drap property.

In order to antibacterialize different textile including natural and artificial, according to production process, we can use padding, dip coating, spraying.

Blend textile, clothing, bandage and all textiles in general can be mixed in this way. In padding method, textile is passed through common machines in textile through nanosilver colloid dilution. with passing textile through nanosilver colloid,  nanosilver stands on the surface of yarn because of contact and some, depends on condition, may infiltrate into yarn.

In dip coating method, by diping textile in nanosilver colloid dilution , in temperature of more than 50 c , in special time, nanosilver particles infiltrate in yarn. Doing the procedure under pressure, causes to increase infiltration of nano particles in yarn, and its antibacterial property will be more permanent.

Distinctions of nanosilver

	property of antimicrobial, antivirus, antifungal and antimildew
	nontoxic
	high proficiency even at low concentration
	appropriate stability after several lavation
	without causing allergy
	decreasing unpleasant adour
	keeping skin biologic balance and hygiene succulence of products during sport activities

Note:

Because of variety production process and different performances of companies, it is not possible to determine one special method for all companies. The best stage and method is found out by negotiation with that company’s R&D.

process of antibacterializing

The process of antibacterializing goods to do this according to the kind of goods and their production process, we can use nanosilver in an appropriate step.

We can choose one of the following methods:

1-Padding

In this method, textile and yarn pad in a bath of nanosilver colloid with suitable density in 60 c temperature, after this step, textile are desiccated in 70-80  c. it is a simple way that convenient for lots of production process, ( you can see the picture).

2-dipping

In the cases that we are going to prepare textile and cloths for markets( like socks, under wear), a bath of nanosilver colloid is used with suitable density and dip coating is done is 60 c. finally , it should be desiccated in 70-80 c .

3-spraying

for tissues, ….. simply by using a spraying machine , we can spray nanosilver colloidal dilution, on it, monotonously

4-using masterbatch and nanosilver composite

in producing artificial yarn and non-woven textile and polymer films based on production process facilities, nanosilver powder or polymer masterbatch containing nanosilver are used.

Preference of this method is because of its permanent constancy and high permanence after lavation.

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