SR-V-2200 is an inorganic antibacterial and antiviral agent that imparts antibacterial and antiviral properties to fibers and coatings.

Features
☆ Reduces the amount of virus on treated products.
☆ Contains silver ions for broad-spectrum antibacterial performance.
☆ Excellent heat resistance.
☆ Uniform 1 μm particles suitable for fiber spinning and coatings.
☆ Primarily inorganic composition with excellent water resistance.
☆ High safety profile suitable for a wide range of applications.

Typical Properties

Appearance	Average Particle Size	Moisture Content	Heat-Resistance Temperature
White powder	1 μm	<1%	600°C

Features
It adsorbs to and inactivates viral membrane proteins, thereby preventing the virus from entering host cells.

Antiviral Performance
The antiviral activity of SR-V-2200 aqueous dispersions at 0.1–3 mg/mL against influenza virus was measured in accordance with ISO 18184, the antiviral test method for textile products. The antiviral activity value is the difference between the logarithm of the infectivity value for the phosphate-buffered control and that for the antiviral sample. A higher value indicates greater antiviral performance.

Test Concentration	0.1 mg/mL	1 mg/mL	3 mg/mL
Antiviral Activity Value	1.5	3.2	>4.1

Antibacterial Performance
The minimum concentration of an antibacterial agent required to prevent bacterial division and proliferation is known as the minimum inhibitory concentration (MIC), expressed in μg/mL. A lower MIC indicates stronger antibacterial activity. The table below shows the MIC values of SR-V-2200 against various microorganisms, determined using the agar dilution method.

Test Organism	E.coli Escherichia coli	P.aeruginosa Pseudomonas aeruginosa	S.aureus Staphylococcus aureus
MIC(μg/mL)	200	200	400

Safety
SR-V-2200 has undergone a range of safety tests that confirm its high safety profile.

Test Item	Acute Oral Toxicity	Mutagenicity (Ames Test)	Chromosomal Aberration	Primary Skin Irritation	Skin Sensitization
Result	LD50 >5000 mg/kg	Negative	Negative	Slightly Irritating	Negative

Processing Examples
◆ Dip-Treatment Example on Cotton Fabric
Cotton fabric was dip-treated with SR-V-2200 at an add-on of 1 g/m², and its antiviral activity against influenza virus was measured in accordance with ISO 18184, the antiviral test method for textile products. The results showed that SR-V-2200 achieved a higher antiviral activity value than a silver-based inorganic antibacterial agent. An antiviral activity value of 2 (99%) is classified as a “small effect,” while a value of 3 (99.9%) is classified as a “full effect.”

	Infectivity Titer (PFU/mL)	Antiviral Activity Value
Virus Count Immediately after Inoculation	1.1×108	—
Standard White Fabric after 2 Hours	5.9×106	—
Cotton Fabric Dip-Treated with AG1100 at 1 g/m²	4.0×106	0.2
Cotton Fabric Dip-Treated with SR-V-2200 at 1 g/m²	<200	>4.5

◆ Coating Example on Film
SR-V-2200 was coated onto polyester film at an add-on of 1 g/m². In accordance with ISO 18184, the antiviral test method for textile products, 0.4 mL of viral suspension was applied and the cover-film method was used to measure antiviral activity against influenza virus. The results showed that SR-V-2200 provided a high antiviral activity value.

	Infectivity Titer (PFU/mL)	Antiviral Activity Value
Virus Count Immediately after Inoculation	4.8×107	—
Untreated Film after 2 Hours	4.4×106	—
Film Coated with SR-V-2200 at 1 g/m²	<100	>4.8

Packaging
5 kg/package (carton with aluminum-foil-lined bag)

Handling Precautions

● Hygroscopic. Store sealed at room temperature.
● Because this product is a fine powder, provide local exhaust ventilation and wear a dust mask, safety goggles, and gloves during handling.
● If the product enters the eyes, rinse thoroughly with clean water and seek medical attention promptly.
● In case of skin contact, wash thoroughly with soap.
● Certain processing conditions may cause discoloration or reduce deodorizing performance. Conduct a trial before use.
● Confirm the intended applications and all applicable laws and regulations before deciding to use the product.

 

★ For safety information regarding storage, use, and disposal, refer to the product safety information issued by our company or consult the appropriate company representative.
★ The physical-property values in this technical document are not guaranteed specifications for our products. The information may change if product specifications are revised.
★ The information in this technical document is based on test results and may not correspond to results under specific conditions of use. We assume no responsibility for end-product performance, patent matters, or related issues.