T/HTES 003-2019 Active Group standards

T/HTES 003-2019 Polyester/cotton blend sewing thread

Publish Date: 2020-06-16 Implement Date: 2020-06-16 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/HTES 003-2019

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Wire, tape, and rope

ICS Name: Yarn

Publish Date: 2020-06-16

Implement Date: 2020-06-16

Scope

Scope: This standard specifies the terms and definitions, requirements, test methods, acceptance rules, packaging, marking, transportation, and storage for sewing thread products made from polyester-cotton blends. This standard applies to sewing threads made from polyester-cotton blends, whether in their natural or dyed form. Main technical content: The technical requirements for sewing threads are divided into physical and chemical properties, appearance quality, and safety performance. Physical and chemical properties include tensile strength, coefficient of variation of tensile strength, elongation at break, deviation rate of linear density, coefficient of variation of linear density, coefficient of variation of evenness of yarn, hundred-meter yarn defects, coefficient of variation of twist, fuzz index of 2mm, fiber content, color fastness to soap, color fastness to wet rubbing, allowable deviation of length, and number of knots. Appearance quality includes six items: surface knots, stains, color deviation, color bleeding, loose threads, and cobweb. Safety performance includes formaldehyde content, pH value, color fastness to dry rubbing, color fastness to water, color fastness to sweat, and the presence of carcinogenic aromatic amine dyes that can be decomposed, as well as odor.