T/CTCA 30-2026 Mulberry silk blended knitted fabric for inner wear

Scope

This document specifies the terms and definitions, requirements, inspection rules, marking and packaging of knitted underwear fabrics containing silk-cotton blends, and describes the corresponding test methods. This document applies to silk-cotton blended yarns primarily made from short silk fibers and other textile fibers such as modal, through blending processes, and woven by knitting weft-knitting techniques. These fabrics are intended for use in intimate clothing such as bras and panties, featuring skin-friendly properties and antibacterial performance, with a silk-cotton content of ≥8%. This standard was revised and improved through multiple rounds based on referencing relevant advanced standards and considering the actual production and circulation situations of the domestic knitting industry. It emphasizes four core requirements and refines, adjusts, and supplements various indicators: - Core material definition: Clarifies that silk-cotton is the core blended material, highlighting its natural skin-friendliness and breathability in direct contact with the skin, and restricts its application to intimate clothing. In subsequent revisions, it further specifies that the raw material is short silk fibers and the weaving process is knitting weft-knitting, precisely defining the product's material and process attributes. - Component quantification requirements: Initially proposed a minimum silk-cotton content of ≥5% in the direct contact layer during the project application phase, which was later optimized to a silk-cotton content of ≥8% in silk-cotton blended fabrics. For silk-cotton underwear fabrics, the silk-cotton content must be ≥50%, all of which must comply with GB/T 29862 requirements. In the draft submission phase, additional fiber content tolerance requirements were added to ensure that the product possesses the basic advantages of silk-cotton and meets labeling standards. - Process and technical specifications: Clarifies the requirements for bl

Development Information

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