Light covered yarn with warmth-keeping and cooling functions and preparation method of yarn

A lightweight, yarn technology, applied in the direction of yarn, melt spinning, rayon manufacturing, etc., can solve the problems of rough yarn, feeling stuffy, poor air permeability, etc., and achieve the effect of stable body temperature

CN105113084AInactive Publication Date: 2015-12-02BANGYUAN SPIN JIANGSU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-12-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses light covered yarn with warmth-keeping and cooling functions. The yarn comprises core yarn and covering yarn covering the outer layer of the core yarn, wherein the covering yarn is made of two kinds of synthesized polyester yarn adopting different structures and having specially-shaped sections, one kind has round hollow sections, and the other kind has star-like hollow sections; the core yarn is spandex yarn. The invention further provides a preparation method for producing the covered yarn. The light covered yarn with the warmth-keeping and cooling functions is prepared with the method, yarn having the specially-shaped sections is synthesized, one kind has the hollow sections, the body temperature is kept relatively stable when the external environment is changed, warmth can be kept in cold winter, a user can have the cool feeling in hot summer, and the yarn has the characteristics of moisture absorption, quick dryness and lightness.
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Description

technical field

[0001] The invention relates to a covered yarn and a preparation method thereof, in particular to a lightweight covered yarn with functions of keeping warm and cool and a preparation method thereof. Background technique

[0002] With the improvement of people's living standards and the quickening pace of life, people's requirements for clothing are getting higher and higher. Fitting, comfort, softness and elasticity have become the pursuit goals of new clothing fabrics. Therefore, spandex elastic fabric has become a new favorite in clothing.

[0003] Spandex covered yarn is one of spandex elastic yarn varieties. Spandex covered yarn is an elastic yarn formed by covering the elongated spandex yarn with the spandex yarn as the core, and wrapping the elongated spandex yarn with the filament or short fiber yarn in a spiral manner. According to the number of covering layers, it can be divided into two types: single covering yarn and double covering yarn. Among t...

Examples

Embodiment 1

[0027] A lightweight covered yarn with functions of keeping warm and cool, comprising a core wire 1 and a covered wire wrapped in the outer layer of the core wire, the covered wire is provided with two layers, the first layer is a circular hollow cross-section Spandex yarn 21, the second layer is nylon yarn 22 with star-shaped hollow section, and the core thread 1 is spandex yarn.

[0028] Further, the circular hollow section 21 includes a central circular surface 23 and an outer ring 24 fitted on the central circular surface, and the star-shaped hollow section 22 is a five-pointed star structure.

[0029] The preparation method of the lightweight covered yarn with warming and cool functions comprises the following steps:

[0030] (1) Preparation of spandex yarn with circular cross-section: Put the polyurethane into the rod extruder for melt extrusion, the melting temperature is 310°C, pass through the spinning assembly, and then spray it out on the spinneret, Then spray wate...

Embodiment 2

[0041] The preparation method of the lightweight covered yarn with warming and cool functions comprises the following steps:

[0042] (1) Preparation of spandex yarn with circular cross-section: put the polyurethane into the rod extruder for melt extrusion, the melting temperature is 340°C, pass through the spinning assembly, and then spray it out on the spinneret, Then spray water-cooling through the spinning tunnel, the water-cooling temperature is 2°C, and turn into spandex yarn with circular cross-section for later use;

[0043] (2) Preparation of nylon yarn with star-shaped air cross-section: polyhexamethylene adipate is produced by melt spinning, first put polyhexamethylene adipate into a double-rod extruder for melt extrusion out, where the melting temperature is 400°C, and then sprayed out through the spinneret, and then air-cooled through the spinning tunnel to become a star-shaped nylon yarn with an air cross section for use;

[0044] (3) Spandex yarn winding: adjus...