T/CCFA 01050.2-2021 Antibacterial Zinc Oxide Polyester Part 2: Low-Elasticity Filament of Antibacterial Zinc Oxide Polyester

Scope

Main Technical Content: 5. Technical Requirements 5.1 Product Grading The products are divided into three grades: Superior, First-Class, and Passed. 5.2 Performance Items and Indicators Table 1: Performance Items and Indicators for Uncolored Antibacterial Polyester Low-Elasticity Filament Serial No. Item Superior First-Class Passed 1 Yarn Density Deviation Rate (%) ±2.5 ±3.0 ±3.5 2 Yarn Density Variation Coefficient (CVb Value) (%) 1.40 1.80 2.40 3 Breaking Strength (cN/dtex) ≥0.8dtex ≤dpf ≤1.7dtex 3.00 2.80 2.60 4 Breaking Strength Variation Coefficient (CVb Value) (%) ≤9.00 11.00 13.00 5 Breaking Elongation (%) M1a ±4.0 M1 ±6.0 M1 ±8.0 6 Breaking Elongation Variation Coefficient (CVb Value) (%) ≤11.0 15.0 18.0 7 Curl Shrinkage Rate (%) M2b (1±20%) M2 (1±30%) M2 (1±40%) 8 Curl Shrinkage Variation Coefficient (CVb Value) (%) ≤9.00 15.00 20.00 9 Curl Stability (%) ≥60.0 50.0 40.0 10 Boiling Shrinkage Rate (%) ≤M3c ±0.6 M3 ±0.8 M3 ±1.2 11 Dyeing Uniformity (Grey Card) Grade ≥4 4 3-4 12 Oil Content (%) M4d ±1.00 M4 ±1.20 M4 ±1.40 13 Network Density (pcs/m) M5e (1±20%) M5 (1±25%) M5 (1±35%) 14 Cone Weight/kg Set Weight ≥1.0 --- 15 Antibacterial Rate (%) ≥Staphylococcus aureus 85 Escherichia coli 80 Candida albicans 75 aM1 is the center value of breaking elongation, which is determined by the manufacturer and the customer through consultation and cannot be arbitrarily changed once determined. bM2 is the center value of curl shrinkage, which is determined by the manufacturer and the customer through consultation and cannot be arbitrarily changed once determined. The curl shrinkage rate is rounded to one decimal place. cM3 is the center value of boiling shrinkage, which is determined by the manufacturer and the customer through consultation and cannot be arbitrarily changed once determi

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