Warm-keeping composite yarn

Abstract

The utility model discloses a warm-keeping composite yarn, relates to the technical field of textiles, and adopts the technical scheme that the warm-keeping composite yarn comprises a yarn core, a plurality of warm-keeping yarns are spirally wound on the outer side of the yarn core, each warm-keeping yarn comprises an inner core, a plurality of elastic yarns are adhered to the outer wall of the inner core, wrap yarns are spirally wound outside the plurality of elastic yarns, and a cavity is formed between every two adjacent elastic yarns; the cavities are filled with cotton fiber clusters. According to the warm-keeping composite yarn, the shape of the cavity can be kept all the time through supporting of the elastic yarn, so that the cotton flocs in the cavity are kept in a fluffy state, a large amount of still air is contained in the cotton flocs, a still air layer can be formed in the yarn, air convection is effectively isolated, and the warm-keeping effect is improved. According to the yarn, heat in the yarn is effectively prevented from being dissipated, meanwhile, external cold air is difficult to invade, the yarn has good heat retention property, and the yarn is good in wear resistance due to the adoption of the polyamide fibers.

Description

Technical Field

[0001] The utility model relates to the technical field of textiles, in particular to a thermal insulation composite yarn. Background Art

[0002] There are endless yarns on the market with different materials and structures, which are widely used in weaving, rope making, thread making and other areas of life.

[0003] Yarn plays a very important role in daily production and life. With the continuous improvement of productivity, the demand for some products is also increasing. Among them, tensile strength is a very important property for some outdoor or sports clothing or luggage. The performance of such textiles is usually determined by the fabrics used to make them, and the performance of the fabrics is usually determined by the weaving structure of the fabrics and the yarns used to make them.

[0004] Common yarns are mainly made of cotton and linen fibers processed into products of a certain fineness. They have a tight structure and high tensile strength. However, due to their tight structure, air circulation is poor and an effective still air layer cannot be formed, so the warmth retention is poor. Utility Model Content

[0005] The purpose of the utility model is to provide a thermal insulation composite yarn in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a thermal insulation composite yarn, including a core, a plurality of thermal insulation yarns are spirally wound around the outer side of the core, the thermal insulation yarn includes an inner core, a plurality of elastic yarns are bonded to the outer wall of the inner core, and a covering yarn is spirally wound around the outside of the plurality of elastic yarns. Cavities are formed between adjacent elastic yarns, and the interiors of the cavities are filled with cotton balls.

[0007] As a further configuration of the present invention, the inner core is a fiber with a special-shaped cross-section, and a plurality of grooves for embedding elastic yarns are formed on the outer wall of the inner core.

[0008] As a further configuration of the present invention, a through groove is formed inside the inner core along the length direction.

[0009] As a further configuration of the present invention, the elastic yarn includes an elastic core and an outer covering wire spirally wound around the outer side of the elastic core, and the outer covering wire is formed by twisting a plurality of wool fibers.

[0010] As a further configuration of the present invention, the elastic core is formed by spirally twisting a first winding and a second winding, the first winding is formed by twisting a plurality of spandex fibers, and the second winding is formed by twisting a plurality of polyester fibers.

[0011] As a further configuration of the present invention, the covered yarn is formed by twisting a plurality of nylon fibers.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model can always maintain the shape of the cavity through the support of the elastic yarn, so that the cotton ball in the cavity remains fluffy. The cotton ball contains a large amount of still air, which can form a still air layer inside the yarn, effectively isolating air convection, thereby effectively preventing the loss of heat inside the yarn, and at the same time, it is difficult for the outside cold air to invade, so that the yarn has better warmth retention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic structural diagram of the warm yarn in this utility model.

[0016] Figure numerals: 1, core; 2, warm yarn; 3, inner core; 4, covering yarn; 5, cotton ball; 6, through groove; 7, outer covering wire; 8, first winding; 9, second winding. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1 、 Figure 2 As shown, a thermal insulation composite yarn includes a core 1, and multiple thermal insulation yarns 2 are spirally wound on the outside of the core 1. The thermal insulation yarn 2 includes an inner core 3, a plurality of elastic yarns are bonded to the outer wall of the inner core 3, and a covering yarn 4 is spirally wound on the outside of the plurality of elastic yarns, and the covering yarn 4 is twisted by a plurality of nylon fibers. The nylon fiber has high wear resistance, so that the yarn surface is wear-resistant and durable. A cavity is formed between adjacent elastic yarns, and the interior of the cavity is filled with cotton balls 5. Due to the support of the elastic yarn, the shape of the cavity can always be maintained, so that the cotton balls 5 in the cavity remain fluffy. The interior of the cotton balls 5 contains a large amount of still air, which can form a still air layer inside the yarn, effectively isolating air convection, thereby effectively preventing the loss of heat inside the yarn, and at the same time, it is difficult for cold air from the outside to invade, so that the yarn has better thermal insulation.

[0019] See also Figure 2 As shown, the inner core 3 is a fiber of special cross-section, and a plurality of grooves for embedding elastic yarn are formed on the outer wall of the inner core 3. The setting of the grooves allows the elastic yarn to form a gap after being embedded in the groove. The gap is combined with the covering yarn 4 to form a chamber structure, which is convenient for filling with cotton balls 5 and can maintain the fluffy state of the cotton balls 5. The cross-sectional shape design of the special-shaped cross-sectional fiber reduces the surface area of ​​the fiber and increases the porosity, forming more air layers, effectively preventing heat convection and conduction, and improving the warmth retention of the yarn. A through groove 6 is formed along the length direction inside the inner core 3, and the hollow structure of the inner core 3 further increases the heat preservation effect, thereby isolating the external cold air, maintaining the internal temperature, and further improving the warmth retention of the yarn. When preparing the special-shaped cross-sectional fiber, the shape of the spinneret needs to be processed in advance to make it meet the requirements, and then the spinning solution is sprayed through the spinneret and gradually solidified to obtain the required special-shaped cross-sectional fiber shape to make the inner core 3.

[0020] See also Figure 2 As shown, the elastic yarn includes an elastic core and an outer covering wire 7 spirally wound around the outside of the elastic core, and the outer covering wire 7 is twisted by a plurality of wool fibers, so the wool fibers are soft and fluffy, thereby improving the warmth retention of the yarn, and the elastic core is spirally twisted by a first winding 8 and a second winding 9, and the first winding 8 is twisted by a plurality of spandex fibers, and the second winding 9 is twisted by a plurality of polyester fibers, so the spandex fiber has high elasticity, thereby ensuring the elasticity of the elastic core, and the polyester fiber has high strength and high toughness, thereby ensuring the tensile strength of the elastic core.

[0021] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0022] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A thermal insulation composite yarn, characterized in that: The invention comprises a core (1), a plurality of thermal insulation yarns (2) are spirally wound around the outer side of the core (1), the thermal insulation yarns (2) comprise an inner core (3), a plurality of elastic yarns are bonded to the outer wall of the inner core (3), a plurality of elastic yarns are spirally wound around the outer sides of the plurality of elastic yarns, a cavity is formed between adjacent elastic yarns, and the interior of each cavity is filled with cotton balls (5).

2. The thermal insulation composite yarn according to claim 1, characterized in that: The inner core (3) is a fiber with a special-shaped cross-section, and a plurality of grooves for embedding elastic yarns are formed on the outer wall of the inner core (3).

3. The thermal insulation composite yarn according to claim 2, characterized in that: A through groove (6) is formed inside the inner core (3) along the length direction.

4. The thermal insulation composite yarn according to claim 1, characterized in that: The elastic yarn comprises an elastic core and an outer covering wire (7) spirally wound around the outer side of the elastic core, wherein the outer covering wire (7) is formed by twisting a plurality of wool fibers.

5. The thermal insulation composite yarn according to claim 4, characterized in that: The elastic core is formed by spirally twisting a first winding (8) and a second winding (9), wherein the first winding (8) is formed by twisting a plurality of spandex fibers, and the second winding (9) is formed by twisting a plurality of polyester fibers.

6. The thermal insulation composite yarn according to claim 1, characterized in that: The covered yarn (4) is formed by twisting a plurality of nylon fibers.

Images