Flame-retardant composite yarns and production method for same

Abstract

The invention discloses flame-retardant composite yarns and a production method for the same. The flame-retardant composite yarns are characterized in that polyester filament yarns are adopted for central fibers, wherein the outer surfaces of the central fibers are wrapped with wrapping fibers in a winding way; aramid short fibers made from polyisophthaloyl metaphenylene diamine fibers are adopted as the wrapping fibers; the flame-retardant composite yarns are formed by a fully-automatic bobbin winder, a high-speed doubling winder and a two-for-one twisting procedure. According to the flame-retardant composite yarns and the production method for the same, the strength of the composite yarns is greatly strengthened, the advantages of high flame retardance of the aramid short fibers and high tenacity of the polyester filament yarns are effectively integrated, and the composite yarns are suitable for high-speed sewing and is high in sewing processing efficiency; in addition, special garments made from the composite yarns wear comfortable, the sewing requirements of special garments and equipment used in high-temperature working environments can be met, and the composite yarns can be widely used for the sewing of firefighting, electric welding, fireproof and high-temperature resistant fabrics as well as fireproof inorganic roller shutters, fireproof and high-temperature resistant gloves, fireproof gilts and fireproof and high-temperature resistant sealing rings, have good fireproof and flame-retardant effects, and are wide in application range.

Description

Technical field [0001] The invention relates to a yarn and a manufacturing method thereof, in particular to a flame-retardant composite yarn and a manufacturing method thereof, and belongs to the technical field of textiles. Background technique [0002] The existing flame-retardant fibers are not convenient for high-speed sewing, have poor wearing comfort as special clothing, and cannot integrate the advantages of excellent flame-retardant performance and high strength. Moreover, the sewing processing efficiency is low, which is not conducive to being widely used in high temperature and fire retardant fields. [0003] For example: Aramid 1313, that is, poly-metaphenylene isophthalamide fiber, which is made by solution spinning after the condensation polymerization of meta-phenylene diamine and isophthaloyl chloride. The fiber breaking strength is 3.1cN / dtex -5.3cN / dtex, elongation of 30%-50%, aramid 1313 has the characteristics of acid, alkali, mildew, and aging resistance. It h...

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Problems solved by technology

[0004] The first purpose of the present invention is that the existing flame-retardant fibers are not convenient for high-speed sewing, and cannot combine the advantages of excellent flame-retardant performance and high strength. The wearing comfort of special clothing is poor, which is not conducive to being widely used in high temperature In view of the defects and deficiencies in the fire and flame retardant field, we now provide a high-speed sewing machine that combines the advantages of excellent flame retardant performance and high strength. It is more comfortable to wear as special clothing and is convenient for wide application in high temperature and fire resistance. A flame retardant composite yarn in the field of flame retardant

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