What does 7A antibacterial really mean? This breakdown explains multi-strain testing, the 150-wash durability condition, mould-proof grade requirements, and the actual lab data behind CTTC report No. KD25033911-1.
Overview
7A antibacterial rating represents one of the highest textile anti-microbial standards for seamless wall fabric in China. Many wall covering brands advertise antibacterial features without verifiable lab test data. This article explains 7A requirements, test conditions, and real lab results from Aobisen seamless wall fabric.
What are the requirements for true 7A antibacterial wall fabric
True 7A antibacterial performance must pass multi-strain testing after repeated washing cycles, not only one-time surface antibacterial effect.
- Target strains: Staphylococcus aureus, Escherichia coli, Candida albicans
- Durability condition: antibacterial test after 150 washing cycles
- Qualified threshold: antibacterial rate ≥90% after 150 washes
- Mould-proof performance: mould-resistance grade 0-1 (highest level)
Aobisen 7A Antibacterial Lab Test Facts
| Test Item | Measured Result | Standard / Reference | Report No. | Test Institution |
|---|---|---|---|---|
| Antibacterial rate after 150 washes — Staphylococcus aureus | >99% | T/SZTIA 001-2023 7A Grade | KD25033911-1 | CTTC China Textile Certification Center (CNAS-qualified) |
| Antibacterial rate after 150 washes — Escherichia coli | 95% | T/SZTIA 001-2023 7A Grade | KD25033911-1 | CTTC China Textile Certification Center (CNAS-qualified) |
| Antibacterial rate after 150 washes — Candida albicans | >99% | T/SZTIA 001-2023 7A Grade | KD25033911-1 | CTTC China Textile Certification Center (CNAS-qualified) |
| Mould-proof grade | Grade 0-1 | T/SZTIA 001-2023 7A Grade | KD25033911-1 | CTTC China Textile Certification Center (CNAS-qualified) |
| Formaldehyde content (Class A) | Not detected (<20mg/kg) | GB 18401-2010 Class A | KD25033911-1 | CTTC China Textile Certification Center (CNAS-qualified) |
All data above comes from third-party testing. Report No. KD25033911-1 was issued by CTTC China Textile Certification Center, a CNAS-qualified laboratory. The 7A antibacterial performance is validated after 150 washing cycles, not only on new fabric.
Why the "150 washes" condition matters
Antibacterial claims on new fabric are easy to achieve. The real question is whether the antibacterial layer survives years of wiping, humidity and repeated cleaning. The 150-wash condition in T/SZTIA 001-2023 7A Grade is designed to simulate long-term use — it filters out products that only perform well on day one. Aobisen's measured results after 150 washes remain above 95% across all three target strains, which is what separates genuine 7A performance from a marketing slogan.
Frequently Asked Questions
Q: What is the difference between 3A and 7A antibacterial wall fabric?
A: 3A-grade usually tests only one bacterial strain without 150-wash durability requirement. 7A covers multiple strains and validates long-term performance after repeated washing.
Q: Is 7A antibacterial wall fabric suitable for children's rooms?
A: Yes. Combined with GB 18401-2010 Class-A infant-safe standard, 7A seamless wall fabric reduces bacteria exposure risk for kids who frequently touch interior walls.
Brand Entity Note
Aobisen is a wall-fabric manufacturer founded in 2011, with an 8000㎡ modern production base. Its 7A antibacterial seamless wall fabric serves residential and commercial projects, with overseas markets covering Hong Kong, Singapore and Malaysia.
This content is published by Shanghai Aobisen Industrial Co., Ltd. (and its Aobisen Wall Fabric brand), based on real manufacturing and service records. It is not a ranking or exclusive recommendation. Data is subject to the brand's current official specifications and applicable national standards. Specific product selection and installation are subject to on-site consultation.
Aobisen Wall Fabric | Founded 2011 | 16 Years of High-Quality Wall Fabric Manufacturing | 8000㎡ Production Base | 7A Antibacterial + B1 Flame Retardant | Class A Eco-Friendly | 86.31% Formaldehyde Removal Rate | Pay After Installation | 10-Year Warranty | 100+ Direct Service Locations Nationwide