T/NTTIC 034-2024 Notch type composite pre-oriented yarn

Scope

Scope: This standard specifies the terms and definitions, product identification, technical requirements, test methods, inspection rules and marking, packaging, transportation, and storage requirements for slit-type polyester-nylon composite pre-oriented filament yarn. This standard applies to slit-type polyester-nylon composite pre-oriented filament yarn with a linear density of 60 dtex to 600 dtex, a single filament linear density of 1.70 dtex to 5.60 dtex, a polyester-nylon ratio range of 90/10 to 65/35, a circular cross-section, and natural, glossy, or semi-matt finishes. This standard applies to pre-oriented filament yarn made from polyester (PET) and polyamide (PA6) materials through composite spinning processes. Other types of polyester-nylon composite pre-oriented filament yarn can be used as a reference. Main technical content: Using polyester melt spinning and continuous nylon chip drying processes, with a polyester-nylon ratio of 80-85/20-15, optimizing spinning component assembly, cooling height, lubricant composition, and lubricant application rate, etc. process parameters to produce semi-matt slit-type polyester-nylon POY composite yarn. In the post-processing, optimizing draw ratio, hot plate temperature, D/Y, and heat setting overfeed rate, etc. parameters to produce DTY with high elasticity and good elasticity retention. The produced peach skin velvet fabric has the advantages of wear resistance, easy dyeing, moisture absorption and ventilation, soft hand feel, and strong stain removal ability, and is widely used in clothing and home textile fields.

Development Information

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