Core-sheath type bulked tow and preparation method thereof

Abstract

The invention discloses a core-sheath type bulked tow. The tow contains N bulked yarns each of which is formed by a core yarn and a sheath yarn through air interlacing processing integration; at leastone of the core yarn and sheath yarn of the bulked yarn is combined yarn formed by high-melting-point fiber and low-melting-point fiber; and the bulked tow contains disperse melt bonding points, andN is greater than 1.The bulked tow disclosed by the invention has the advantages of good bulkiness, light weight and warmth keeping, soft and smooth handfeel and excellent resistance to machine washing, and can replace down to serve as filler.

Description

Technical field [0001] The invention relates to a bulky processing tow with excellent characteristics such as high bulkiness, compression rate and recovery rate, which is used as a filling material. Background technique [0002] Among the many types of insulation fillings on the market today, down is the most advanced insulation filling. Feathers have excellent fluffiness and high thermal insulation properties, and have long been used as a high-end material for feather products such as quilts and feather clothing. [0003] However, natural feathers come from waterfowl and have many flaws. For example, ① the production cost is high, the supply is limited, and its price is susceptible to large changes due to market supply and demand; ② the production process will produce a large amount of sewage, waste water, etc., which will cause environmental pollution problems. If the feathers are not washed adequately, It will cause odor, so the dirt that causes the odor needs to be rem...

AI Technical Summary

Problems solved by technology

For example, ① the production cost is high, the supply is limited, and its price is susceptible to large fluctuations due to market supply and demand; ② a large amount of sewage and waste water will be generated during the production process, which will cause environmental pollution. It will cause foul smell, so it is necessary to remove the foul smelling dirt in advance; ③ Difficult to wash, most down products are not suitable for machine washing, because down fabrics are dense, washing clothes in a washing machine will bulge and float on the water surface, resulting in unclean washing. At the same time, it is also prone to down shifting, resulting in poor local warmth retention

Although ordinary pure cotton fillings do not have the above-mentioned defects of natural down, they are not widely used for clothing filling because of their thickness and poor warmth retention.

[0004] Chemical fiber fillers such as pearl cotton not only have the lightweight style of natural down, but also have the advantages of anti-bacterial and moisture-proof, stable cost, and low price, but their bulkiness is not high enough.

[0005] The warmth retention is far from that of down, and it is not easy to machine wash

[0006] Chemical fiber fillers such as pearl cotton not only have the lightweight style of natural down, but also have the advantages of anti-bacterial and moisture-proof, stable cost, and low price. However, their bulkiness is not high enough, and their warmth retention is far from that of down. , but also not easy to machine wash

[0007] Chinese patent CN186187A discloses a kind of short-fiber imitation down cotton, but the bulkiness of the short-fiber filling cotton is not high, and there is a grainy feeling when the heat preservation material is made, and the short-fiber down-like cotton is prone to partiality when washed. shift

However, it is necessary to integrate the twisting of the core yarn and the fancy yarn first, and then perform the fiber opening treatment of the fancy yarn. The process is complicated, and the long-fiber filling cotton is deficient in bulkiness, softness, and recovery after compression.

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