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Document Type and Number:
WIPO Patent Application WO/2021/251938
Kind Code:
This invention is related to the process of producing nano-tech fabrics with 3D weaving method and the process of adding this fabric special antibacterial, antifungal, antiviral, and antimicrobial properties. The first stage of this process is the production of the solution of Ag nanoparticles and chitosan and impregnation of this enriched solution to the yam at the dyeing stage so as to form the Ag content and the second stage is enriching and fixing the Ag content at the finishing process of the fabric.

Application Number:
Publication Date:
December 16, 2021
Filing Date:
June 10, 2021
Export Citation:
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International Classes:
D06M11/83; D02G3/04; D06M10/04; D06M16/00
Foreign References:
Other References:
ERDOGAN SEVIL: "TEXTILE FINISHING WITH CHITOSAN AND SILVER NANOPARTICLES AGAINST Escherichia coli ATCC 8739", TRAKYA UNIVERSITY JOURNAL OF NATURAL SCIENCES, vol. 21, no. 1, 15 April 2020 (2020-04-15), pages 21 - 32, XP055885801, ISSN: 2147-0294, DOI: 10.23902/trkjnat.641367
Attorney, Agent or Firm:
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1- The present invention is related to the antimicrobial, antiviral, antibacterial and antifungal fabrics; characterized in that the antimicrobial, antiviral, antibacterial and antifungal fabric production method is consisting of the following production steps:

- Transforming the silver ion biopolymer chitin which is in a liquid form into a solid form of silver ion biopolymer chitin fiber structure by the electro styling method,

- Mixing the silver ion biopolymer chitin in a solid form of fiber structure with a ratio of 35% cotton fibers, 15% linen fibers, 99.6% nylon and polyester-based fibers,

- Spinning the obtained fiber mixture,

- Transforming the yarns into a fabric by weaving with a spider web model in a 3D weaving machine,

- Washing the obtained fabric with the nanoparticle solution of boron 216 biopolymer chitin coated with laser blasted silver colloidal in the washing vessels,

- Washing and dyeing with the desired dye in a dye pool after the washing process,

- After the dyeing process, in the final step spraying the nanoparticle solution of boron 216 biopolymer chitin coated with silver colloidal onto the fabric which passed to the rav machine before it passes to the rav rollers,

- Scanning the fabric which is subjected to the rav processing by passing through the rav machine at an angle of 0.47% with a laser power of 45-60 Watt.

2 The transformation of the silver ion biopolymer chitin which is in a liquid form into a solid form by the electro styling method according to claim 1, characterized in that; the silver ion biopolymer chitin solution in a solid form of fiber structure is formed by applying an electric current of 4500 Watt to the silver boron 216 biopolymer chitin sodium nitrate solution which is in a liquid form.

3- The silver ion biopolymer chitin solution according to claim 1, characterized in that it is prepared by the following steps;

- Providing the binding of the silver ions boron 216 to the sodium nitrate ions at a level of nanoparticle size of 250-450 ppm by applying a laser fusion blasting with a power of 125 Watt to purified water, purified silver plate, boron 216 element and sodium nitrate in a reactor for fusion blasting,

- Mixing the obtained silver boron 216 solution with a ratio of 22.2% biopolymer chitin,

- Centrifuging the mixture for 15 minutes,

- Forming a colloidal bind between the centrifuged mixture and the silver boron 216 sodium nitrate biopolymer by the laser fusion blasting with a power of 125 Watt.



Technical Field of the Invention

The invention is related to the production of nano-tech fabrics with 3D weaving method and the introduction of antibacterial, antifungal, antiviral, and antimicrobial properties specific to this fabric.

It is important to have hygienic features in many textile sectors such as sports textile products, military textile products, home textile products, especially textile products in the health sector. Especially today, when epidemic swells a major problem, there has been a significant increase in the need for such products. These products are, related to antimicrobial, antiviral, antimicrobial textile area.

Known State of the Art (Prior Art)

The antimicrobial effect of silver ions is due to its interaction with tiyol (sulfhydrate) groups. Other compounds such as sodium thioglycolate, which contain amino acids and tiyol groups such as cysteine, can neutralize the bacterial effect of silver. However, amino acids containing dissulfide ligaments, sulfur-free amino acids and sulfur-containing compounds such as; cytocytoone, cystic acid, L-methylamine, taurine, sodium bissulfate and sodium thiosulfate cannot neutralize the antimicrobial effect of silver ions.

Given all this, the interaction of the tiyol groups and silver ions in enzymes plays a major role in the antimicrobial effect, as well as cellular components such as hydrogen binding, which may play a role in this effect.

Silver also acts by connecting to important functional groups of enzymes . Silver ions cause the release of K+ ions from bacteria; therefore, bacterial plasma or cytoplasmic membrane associated with many important enzymes is an important target region for silver ions.

In addition to its effects on bacterial enzymes, silver ions cause significant inhibition of bacterial reproduction and accumulate in the vakuol and cell wall as granules. It inhibits cell division by damaging the bacterial envelope and its contents. The size of bacterial cells increases and the cytoplasmic membrane, cytoplasmic content and outer cell layers display all structural abnormalities.

Finally, silver ions interact with nucleic acids. Instead of Phosphate groups, they preferably interact with bases in DNA. However, the importance of this event to neutralize bacteria is unclear.

Silver and silver components are silver metal, silver acetate, silver nitrate, silver protein and silver sulfadiazine. Silver ions can be obtained via electrolysis or by dissolving silver compounds. The superiority of silver ions produced in antimicrobial activity is known.

Chitosan is a renewable biopolymer and is produced by the deacetylation of the chitin, which is a protective and supportive structure in a wide variety of life groups such as crustaceans, mollusks, insects, and fungi. Chitosan, a natural, bio-compatible, bio-degradable and non-toxic biopolymer, can be easily modified and used in various application areas thanks to reactive hydroxyl and amino groups. In addition, thanks to these reactive groups, chitosan can be used as a final layer product in textiles and in painting. Chitosan’ s cationic structure plays an active role in many medical applications by displaying antimicrobial, antioxidant, antitumor and anticancer properties that enable it to be used as therapeutic and antibacterial agents.

Today, many different techniques are used for the application of silver ions and/or chitosan to textile products. Most of them have in common are sythetic polymers to connect silver ions to fabric. Most of these polymers are not eco-friendly and contribute to environmental pollution.

Methods of adding Ag ions in which no binding polymers are used lose their antimicrobial effects quickly by losing significant silver content in each wash, contributing to environmental pollution by releasing silver, which is a heavy metal in wastewater.

Brief Description of the Invention and its Aims

The primary aim of the invention is to be able to bring the antibacterial, antifungal, and antimicrobial properties of chitosan and ionized silver into 3D woven nano fabric.

Based on the principle that chitosan, a natural and biodegradable polymer, has a binding effect on the connection of textile products with silver ions, there is no need for the use of chemicals which are used in similar applications in textiles, and a product with a highly environmentally friendly and antimicrobial effect is revealed.

Detailed Description of the Invention

A production method of antimicrobial, antiviral, antibacterial and antifungal fabric comprise following steps:

• Taking the yams to be used for weaving into the boiler,

• Adding mixture of silver ions and chitosan into the boiler,

• Waiting until the yams to absorb the solution,

• Drying of weaving yams, · Carrying out weaving with 3D weaving method,

• Application of the silver ions and chitosan solution to the produced fabric.

Washable masks and medical products are made from fabric with antifungal, antiviral, antimicrobial technology specific to this fabric. Fabric is woven using 3D 0.1 micron nano weaving technology and laser scanned with 0.47% angle. After 0.1 micron 3D weaving and laser scanning with 0.47% degrees of angle, the front side of the fabric acquires the ability to stick to both organic and inorganic matter with 1000 kg negative resistance, forming the filtration system preventing matter infiltrating into the lower layers and addition of positive ions of Ag nanoparticles + C56H103NG039... (biopolimer liitin + bor 216 gunrii§ iyon + sodyum nitrat olu§turdugu nanopartikiil boyutundaki solusyonun element kodlandir.)

Bulu§ ile geli§tirlen, antimikrobiyal antiviral antibakteriyel ve antifungusit kuma§ iiretim yontemi ile medikal maske iiretimi yapildigmda; medikal maske kuma§i olarak 0,1 mikronda yapi§ma ozelligi kazanan iiruniin kullamminda, medikal maske iizerine §effaf koruma siperlik kullammi ile oldukqa yiiksek oranda koruma saglanabilmektedir.