T/BYXT 007.1-2023 Rare earth antibacterial paper products - Part 1: Tissues

Scope

Scope: This document specifies the terms and definitions, classification, raw materials, technical requirements, test methods, inspection rules, labeling, packaging, transportation, and storage of rare earth antibacterial tissues. This document applies to paper products with antibacterial functions, such as facial tissues, paper napkins, and handkerchiefs, used for daily life washing and wiping purposes. Main technical content: 6.2.1 The physical and chemical performance requirements shall comply with the requirements of Table 2. Table 2: Indicators of physical and chemical performance requirements Requirement Ordinary type Soft type Wet strength type Moisturizing type Dispersible type Excellent grade Passing grade Quantitative and quantitative deviations / (g/m2) 10.0 ± 1.0 12.0 ± 1.0 14.0 ± 1.0 16.0 ± 1.0 18.0 ± 1.0 20.0 ± 1.0 23.0 ± 2.0 27.0 ± 2.0 31.0 ± 2.0 D65 Brightness a / % ≤ 90.0 Migratable fluorescent substances No ash / % Primary wood pulp (fiber) ≤ 1.0 Primary non-wood pulp (fiber) ≤ 6.0 Primary mixed pulp (fiber) ≤ 4.0 Lateral liquid absorption height / (mm/100 s) Single layer ≥ 20 ≥ 15 Double or multiple layers ≥ 40 ≥ 30 Lateral tensile strength / (N/m) Single or double layer ≥ 60.0 ≥ 40.0 ≥ 30.0 ≥ 60.0 ≥ 20.0 ≥ 40.0 Multiple layers ≥ 90.0 ≥ 70.0 ≥ 40.0 ≥ 90.0 ≥ 30.0 ≥ 70.0 Vertical wet tensile strength / (N/m) Manual method Single or double layer ≥ 30.0 ≥ 20.0 ≥ 15.0 ≥ 50.0 ≥ 15.0 ≥ 14.0 Multiple layers ≥ 40.0 ≥ 30.0 ≥ 25.0 ≥ 90.0 ≥ 25.0 ≥ 14.0 Softness c (average in longitudinal and transverse directions) / mN Single or double layer ≤ 85 ≤ 160 ≤ 60 ≤ 180 ≤ 40 ≤ 160 Multiple layers ≤ 160 ≤ 280 ≤ 100 ≤ 240 ≤ 220 Dispersibility - Dispersible acrylamide content / (mg/kg) ≤ 0.1 Dusting rate / % ≤ 0.5 Heavy metal cont

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