T/CCFA 01074-2025 Graphene quantum dot short fiber mixed down feather
T/CCFA 01074-2025
Basic Information
Scope
Main Technical Content: **Technical Requirements and Quality Standards for Graphene Quantum Dots Down Comforters**: The content of various materials in the down comforter must meet the requirements specified in Table 1. **Table 1: Material Content Standards (%)**: | Material | Content (%) | Tolerance | | --- | --- | --- | | Graphene Quantum Dots | 49–5% ±5% | | Polyester Staple Fiber | 51–5% ±5% | **Quality Standards for Graphene Quantum Dots Polyester Staple Fiber**: The quality requirements for this material must comply with Table 2. **Table 2: Graphene Quantum Dots Polyester Staple Fiber Quality Standards**: | Performance Requirement | Notes | | --- | --- | | Mite Repellency Rate (%) | ≥70 | | E. coli Antibacterial Rate (%) | ≥85 | | Action Time (h) | 18 | | Staphylococcus aureus Antibacterial Rate (%) | ≥85 | | Action Time (h) | 18 | | Candida albicans Antibacterial Rate (%) | ≥85 | | Action Time (h) | 18 | | Anti-mold Performance | ≥Grade 1 as defined in GB/T 24346-2009 | | Wavelength Range (μm) | 4–16 | | Normal Emissivity (%) | ≥0.85 | | Three-Dimensional Structural Regeneration | Hollow | | Breaking Strength (cN/dtex) | 3.6 | | Elongation at Break (%) | M1 ±9.0 | | Line Density Deviation (%) | 5 | | Long Fiber Content (mg/100g) | 15.0 | | Defect Content (mg/100 pieces) | 15.0 | | Curling Number (pcs/25mm) | M2 ±3.5 | | Curling Rate (%) | M3 ±3.5 | | Dry Heat Shrinkage Rate (%) | ≤7.5 | | Specific Resistance (Ω*cm) | M4 × 109 | **Note 1**: M1 represents the central value of elongation at break and cannot be arbitrarily modified after determination. **Note 2**: M2 represents the central value of curling number and is selected by both parties within the range of 8.0 pcs/25mm–14.0 pcs/25mm. It cannot be modified after determination. **Note 3**: M3 represents the central value of curling rate and is selected by both parties within the range of 10.0%–16.0%. It cannot be modified after determ