A multi-strand composite yarn

Abstract

The utility model relates to textile technical field, concretely relates to a kind of multi-strand composite yarn, including core yarn and the decoration yarn layer being located at the outer surface of core yarn, the outer surface of decoration yarn layer is equipped with permeation layer, the permeation layer is multi-strand and is twisted and wrapped in the outer surface of decoration yarn layer, the groove one between the strand of adjacent permeation layer is equipped with, composite yarn further includes: the wrapping layer being located at the outer surface of permeation layer, the wrapping layer is multi-strand and is twisted and wrapped in the outer surface of permeation layer, the strand of wrapping layer corresponds with the groove one, the groove two between the strand of adjacent wrapping layer is equipped with, the strand of permeation layer corresponds with the groove two, when using, the strand of permeation layer will be mutually permeated with decoration yarn layer and wrapping layer respectively, form double interlaced interlock, improve interlamination bonding strength, so that the overall breaking strength and anti-skid performance of composite yarn significantly improve.

Description

Technical Field

[0001] This utility model relates to the field of textile technology, and in particular to a multi-strand composite yarn. Background Technology

[0002] To compensate for the shortcomings of single-fiber yarns in various properties and to meet the specific functional requirements of processed products, composite yarns are needed, which are yarns made by combining multiple different types of fibers or materials through twisting and wrapping.

[0003] For example, Chinese patent application number CN202320472640.7 discloses a composite fancy yarn comprising three layers of fibers: core yarn, decorative yarn, and fixing yarn. The core yarn includes a reinforcing core and a nylon layer covering the surface of the reinforcing core. The nylon layer is integrally extruded onto the surface of the reinforcing core. By incorporating a layer of regenerated cellulose fiber into the nylon layer, it not only restricts the nylon fibers, preventing them from easily stretching and deforming, and avoiding their poor strength, but also imparts excellent moisture absorption properties to the fancy fibers, thus absorbing sweat and preventing sweat adhesion. However, the grooves on the nylon layer only provide interlayer bonding strength for the middle layer of the decorative yarn, while the interlayer bonding strength between the outer layer of the fixing yarn and the middle layer of the decorative yarn is poor, resulting in the composite yarn's overall resistance to breaking and anti-slip properties needing improvement. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a multi-strand composite yarn to solve the technical problem that the grooves on the nylon layer in the prior art can only provide interlayer bonding strength for the middle layer of the decorative yarn, while the interlayer bonding strength between the outer layer of the fixed yarn and the middle layer of the decorative yarn is poor, resulting in the need to improve the overall resistance to breakage and anti-slip performance of the composite yarn.

[0005] To achieve the above objectives, this utility model provides a multi-ply composite yarn, comprising a core yarn and a decorative yarn layer disposed on the outer surface of the core yarn. The outer surface of the decorative yarn layer is provided with a permeation layer, which is composed of multi-ply yarn twisted and wrapped around the outer surface of the decorative yarn layer. Grooves are provided between adjacent ply strands of the permeation layer. The composite yarn further includes:

[0006] A wrapping layer is provided on the outer surface of the permeation layer. The wrapping layer is composed of multiple strands of yarn twisted and wrapped around the outer surface of the permeation layer. The strands of the wrapping layer correspond to the first groove. A second groove is provided between adjacent strands of the wrapping layer. The strands of the permeation layer correspond to the second groove.

[0007] Furthermore, the strands of the permeation layer are polylactic acid filaments, and the upper and lower sides of the polylactic acid filaments on the permeation layer can penetrate into the wrapping layer and the decorative yarn layer, respectively.

[0008] Furthermore, the core yarn is linen yarn.

[0009] Furthermore, the decorative yarn layer is integrally extruded from regenerated cellulose fibers onto the outer surface of the core yarn.

[0010] Furthermore, the regenerated cellulose fiber is one of Tencel fiber, Modal fiber, bamboo fiber, cupro fiber, or viscose fiber.

[0011] Furthermore, the winding direction of the multi-strand wires in the wrapping layer is opposite to that of the multi-strand wires in the permeation layer.

[0012] Furthermore, the cross-sections of the first and second trenches are V-shaped.

[0013] Furthermore, the surface of the strands of the wrapping layer is coated with a nano-titanium dioxide antibacterial agent.

[0014] The beneficial effects of this utility model are as follows: When in use, the strands of the permeation layer will permeate each other with the decorative yarn layer and the wrapping layer respectively, forming a double interlocking structure, which enhances the interlayer bonding strength and significantly improves the overall breaking strength and anti-slip performance of the composite yarn. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 3 This is a schematic diagram showing the twisting and wrapping direction of the permeation layer and the wrapping layer in this utility model.

[0019] The diagram is marked as follows:

[0020] 1. Core yarn; 2. Decorative yarn layer; 3. Permeation layer; 4. Groove one; 5. Wrapping layer; 6. Groove two. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] The first aspect of this utility model proposes a multi-strand composite yarn, such as... Figure 1-3 As shown, the composite yarn includes a core yarn 1 and a decorative yarn layer 2 disposed on the outer surface of the core yarn 1. The outer surface of the decorative yarn layer 2 is provided with a permeation layer 3, which is a multi-ply yarn twisted and wrapped around the outer surface of the decorative yarn layer 2. Grooves 4 are provided between the plies of adjacent permeation layers 3. The composite yarn also includes:

[0024] A wrapping layer 5 is provided on the outer surface of the permeation layer 3. The wrapping layer 5 is made of multi-strand yarn and twisted and wrapped around the outer surface of the permeation layer 3. The strands of the wrapping layer 5 correspond to the first groove 4. A second groove 6 is provided between the strands of adjacent wrapping layers 5. The strands of the permeation layer 3 correspond to the second groove 6. In use, the strands of the permeation layer 3 will permeate with the decorative yarn layer 2 and the wrapping layer 5 respectively, forming a double interlocking structure, which improves the interlayer bonding strength and significantly improves the overall breaking strength and anti-slip performance of the composite yarn.

[0025] In this embodiment, as Figure 1 , Figure 2 , Figure 3 As shown, the strands of the permeation layer 3 are polylactic acid filaments. The upper and lower sides of the polylactic acid filaments on the permeation layer 3 can penetrate into the wrapping layer 5 and the decorative yarn layer 2 respectively. The polylactic acid filaments are thermally melted into the decorative yarn layer 2 and the wrapping layer 5, resulting in higher interlayer peel strength compared to traditional adhesive bonding methods.

[0026] In this embodiment, as Figure 1 , Figure 2 , Figure 3 As shown, core yarn 1 is linen yarn, which improves the antibacterial rate and has better moisture absorption and wicking properties.

[0027] In this embodiment, as Figure 1 , Figure 2 , Figure 3As shown, the decorative yarn layer 2 is formed on the outer surface of the core yarn 1 by integral extrusion of regenerated cellulose fibers, resulting in better bonding strength and avoiding the pilling problem of traditional wrapped yarns.

[0028] In this embodiment, the regenerated cellulose fiber is one of Tencel fiber, Modal fiber, bamboo fiber, cupro fiber, or viscose fiber.

[0029] In this embodiment, as Figure 3 As shown, the multi-strand wires of the wrapping layer 5 have the opposite wrapping direction to the multi-strand wires of the permeation layer 3, in order to achieve torque balance and further optimize strength.

[0030] In this embodiment, as Figure 2 As shown, the cross-sections of groove 4 and groove 6 are V-shaped, which increases the liquid diffusion rate. Furthermore, the edges of the V-shaped grooves can achieve stress dispersion, thereby improving wear resistance.

[0031] In this embodiment, the surface of the strands of the wrapping layer 5 is coated with a nano-titanium dioxide antibacterial agent.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0033] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-ply composite yarn, comprising a core yarn (1) and a decorative yarn layer (2) disposed on the outer surface of the core yarn (1), characterized in that, The outer surface of the decorative yarn layer (2) is provided with a permeation layer (3), which is a multi-ply yarn twisted and wrapped around the outer surface of the decorative yarn layer (2). A groove (4) is provided between the plies of adjacent permeation layers (3). The composite yarn also includes: A wrapping layer (5) is provided on the outer surface of the permeation layer (3). The wrapping layer (5) is a multi-stranded thread that is twisted and wrapped around the outer surface of the permeation layer (3). The strands of the wrapping layer (5) correspond to the first groove (4). A second groove (6) is provided between the strands of adjacent wrapping layers (5). The strands of the permeation layer (3) correspond to the second groove (6).

2. The multi-strand composite yarn according to claim 1, characterized in that, The strands of the permeation layer (3) are polylactic acid filaments, and the upper and lower sides of the polylactic acid filaments on the permeation layer (3) can penetrate into the wrapping layer (5) and the decorative yarn layer (2) respectively.

3. The multi-strand composite yarn according to claim 1, characterized in that, The core yarn (1) is flax yarn.

4. The multi-strand composite yarn according to claim 1, characterized in that, The decorative yarn layer (2) is formed on the outer surface of the core yarn (1) by integral extrusion of regenerated cellulose fibers.

5. A multi-strand composite yarn according to claim 4, characterized in that, The regenerated cellulose fiber is one of Tencel fiber, Modal fiber, bamboo fiber, cupro fiber, or viscose fiber.

6. A multi-strand composite yarn according to claim 1, characterized in that, The multi-stranded wires of the wrapping layer (5) have the opposite wrapping direction to the multi-stranded wires of the permeation layer (3).

7. A multi-strand composite yarn according to claim 1, characterized in that, The cross-sections of the first groove (4) and the second groove (6) are V-shaped.

8. A multi-strand composite yarn according to claim 1, characterized in that, The surface of the strands of the wrapping layer (5) is coated with nano-titanium dioxide antibacterial agent.

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