T/CSWF 002-2020 Active Group standards

T/CSWF 002-2020 Masks using hot air nonwoven fabric

Publish Date: 2020-05-12 Implement Date: 2020-05-15 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CSWF 002-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Textile machinery and equipment

ICS Name: Comprehensive analysis of textile fibers

Publish Date: 2020-05-12

Implement Date: 2020-05-15

Scope

Scope: This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, and storage for hot-air nonwoven fabrics used in masks (hereinafter referred to as hot-air cotton for masks). This standard applies to nonwoven fabrics made from ES (composite fibers) and virgin polyester as raw materials, through processes such as blending, opening, combing, heat-setting, winding, and cutting. Main technical content: I. Product grading: The hot-air cotton for masks is graded according to the ES content in the product, as detailed in Table 1. Table 1 Grade of hot-air nonwoven fabrics for masks ES content/% 60≤ES<80 80≤ES<100 ES=100 II. Raw material requirements: All raw materials shall comply with the requirements of the corresponding standards. III. Internal quality requirements: The internal quality requirements of the products shall comply with Table 2. Table 2 Internal quality requirements Item Requirement Width deviation/mm W≤500 ±8 5001000 ±3 Breaking strength a (vertical, horizontal)/N M≤40 ≥640 M≤50 ≥750 M≤60 ≥960 M≤70 ≥1270 M≤80 ≥16 M>80 ≥20 Breaking elongation /% ≥12 Unit area mass deviation rate /% ±10.0 Unit area mass variation coefficient (CV value) /% ≤10 Fiber content b /% ≥ES (polyethylene/polypropylene composite fiber) content ≥ the nominal content Odour None Air permeability/mm/s None