iHeir-333 textile antimicrobial agent – an antimicrobial product specifically designed to maintain the antimicrobial and anti-mite properties of textiles for a long time

iHeir-333 textile antimicrobial agent

Product Overview

iHeir-333 is a high-performance textile antibacterial agent produced and sold by iHeir (China) Co., Ltd. It is specifically designed for textiles, non-woven fabrics, underwear, shoes and socks, bedding, towels, carpets, and similar materials, providing long-lasting antibacterial and anti-dust mite protection. iHeir-333 utilizes a unique non-leaching bonding technology and has been used safely and effectively for over 30 years in the United States, Europe, and other regions. It is widely applied in areas with extremely high safety and bacterial prevention requirements, such as surgical wound care medical products.

Core Technology: Non-Leaching Bonded Antibacterial

iHeir-333 permanently bonds to the fiber surface via chemical bonds, forming a stable antibacterial layer. Its mode of action is physical/mechanical: when bacteria come into contact with the treated surface, the antibacterial layer attracts and punctures the bacterial cell membrane, rapidly killing them. Because the antibacterial agent is not consumed, does not leach, and does not migrate, its effective lifespan matches the service life of the treated product itself, and it does not lead to microbial resistance.

Key Advantages

• Long-Lasting Efficacy: The antibacterial agent is permanently bonded to the fiber surface, non-leaching, and does not diminish with washing or abrasion. The antibacterial effect lasts as long as the product itself.

• Safe & Environmentally Friendly: Contains no arsenic, tin, heavy metals, or chlorophenols. Does not leach into the environment or onto human skin. Oral toxicity LD50 is 12.65 g/kg, which is safer than table salt (LD50 approx. 3 g/kg). Non-irritating to human skin with no toxic side effects.

• Broad-Spectrum Antibacterial: Effectively inhibits bacteria, mold, algae, dust mites, and other microorganisms, preventing odors, stains, degradation, and allergic reactions caused by microbial growth.

• Improved Hand Feel: Treatment can improve the hand feel of most textile fabrics without making them stiff.

• Rapid Detection: Using a bromophenol blue water test, the presence of the antibacterial layer can be verified with only water and two minutes, much faster than traditional leaching-type antibacterial agents.

• Process Compatibility: Suitable for various substrates including natural and synthetic fibers. Can be integrated into factory wet processing stages.

Scope of Application

Apparel, shoes, socks, hats, underwear, down products, bedding, carpets, printed/dyed textiles, medical products (e.g., surgical wound dressings), hotel linens, etc.

Application Method

Recommended Process: Padding Method

1. Calculate Wet Pick-Up (%WPU): Weigh the dry fabric → Immerse in water and pass through nip rollers → Weigh the wet fabric. Calculate using the formula:

   $$\%WPU=(WetWeight-DryWeight)/DryWeight\times 100\%$$

2. Prepare Treatment Bath: Recommended usage rate is 2% – 3% o.w.f. (on weight of fabric). For example, to treat 100 kg of fabric, 2–3 kg of iHeir-333 concentrate is needed.

3. Operating Conditions:

   • Bath Temperature: 21°C – 50°C (ideally below 48°C)

   • pH: 4.5 – 8.5 (ideal pH approx. 6)

   • Water Quality: Soft water must be used (avoid high valence salts such as CaCO₃)

4. Procedure:

   • Pre-mix iHeir-333 with 9–13 times its volume of water, then add to the treatment bath in portions, ensuring thorough dispersion.

   • After the fabric is saturated with the solution in the bath, pass it through nip rollers to control the wet pick-up, then dry.

5. Compatibility:

   • iHeir-333 is cationic and can be used together with cationic or non-ionic softeners and other auxiliaries.

   • Do not mix with anionic auxiliaries, as precipitation and loss of efficacy will occur. If anionic auxiliaries are required, use separate processes: treat with iHeir-333 first, dry, then treat with the anionic auxiliary.

Application Examples

• Standard Antibacterial & Anti-Dust Mite Fabric: Add 3% o.w.f., bath with pure water (pH 4-6), wet pick-up 70%.

• Moisture Wicking + Antibacterial: Because iHeir-333 contains silicon, it may reduce moisture wicking. An additional cationic hydrophilic agent (e.g., 0.1%) is required.

Precautions

• Ensure the fabric surface is clean, free from oil, resin, or residues before treatment.

• Use soft water for the treatment bath and regularly check water quality.

• Use the prepared solution as soon as possible for optimal results.

• Wear chemical protective equipment (chemical-resistant gloves, safety glasses, etc.) during handling and refer to the product MSDS.

• Dispose of remaining waste liquid by neutralization with anionic soapy water, or according to local environmental regulations.

Packaging & Storage

• Packaging Specifications: Please consult the company sales representative.

• Storage Conditions: Protect from light and moisture. Store below 25°C.

• Shelf Life: 1 year for the concentrate when stored under recommended conditions.