Composite yarn

Abstract

The utility model discloses a composite yarn, relates to the yarn field, its technical scheme key point is: including core yarn bundle and outer cover layer, the surface of core yarn bundle is provided with spiral first bead, the outer cover layer is provided with spiral second bead, the spiral direction of first bead is opposite to the spiral direction of second bead. The convex points are formed on the surface of the yarn at the intersection of the first convex edges and the second convex edges, so that a concave-convex structure is formed on the surface of the yarn, the characteristics of the bunchy yarn are shown, meanwhile, the parts forming the yarn are tightly attached to each other and matched with the opposite twisting directions of the core yarn bundle and the outer covering layer, the yarn is prevented from loosening, and the yarn quality is improved. The first outer covering yarn and the second outer covering yarn are both formed by twisting the polyamide fiber yarns, so that the wear resistance of the surface of the yarn is ensured.

Description

Technical Field

[0001] The utility model relates to the field of yarns, and more particularly to a composite yarn. Background Art

[0002] Yarn is the raw material used for weaving. Different yarns can produce different functions and styles through different materials and processing methods. There is a type of yarn called slub yarn, which has several convex structures formed on its surface, which can produce a unique style when weaving. Moreover, due to its concave and convex surface, it has a certain function of increasing the connection strength between yarns. Existing slub yarn is generally formed by local fluffiness of the yarn. At the fluffy slub, the connection strength between the fiber bundles that make up the yarn is low, making the yarn easy to fall apart. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a composite yarn.

[0004] The above technical purpose of the present invention is achieved through the following technical scheme: a composite yarn, including a core yarn bundle and an outer covering layer, the surface of the core yarn bundle is provided with a spiral first ridge, and the outer covering layer is provided with a spiral second ridge, and the spiral direction of the first ridge is opposite to the spiral direction of the second ridge.

[0005] The utility model is further configured as follows: the core yarn bundle is formed by twisting a plurality of first core yarns and a single second core yarn in the same direction, and the diameter of the second core yarn is greater than the diameter of the first core yarn.

[0006] The utility model is further configured as follows: the outer covering layer is formed by twisting two first outer covering yarns and a single second outer covering yarn in the same direction, the diameter of the second outer covering yarn is the same as the diameter of the second core yarn, and the diameter of the second outer covering yarn is greater than the diameter of the first outer covering yarn.

[0007] The present invention is further configured as follows: two spiral gaps are provided between the two first outer covering yarns, and the second outer covering yarn is located in one of the gaps.

[0008] The present invention is further configured such that: the twist of the second covering yarn is greater than the twist of the second core yarn.

[0009] The utility model is further configured as follows: the second outer covering yarn is twisted from wear-resistant fiber yarns.

[0010] In summary, the utility model has the following beneficial effects: the intersection of the first ridge and the second ridge forms a convex point on the surface of the yarn, and then forms a concave-convex structure on the surface of the yarn, showing the characteristics of bamboo yarn. At the same time, the various parts that constitute the yarn remain in close contact with each other, and the opposite twist directions of the core yarn bundle and the outer covering are coordinated to avoid loose yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the present utility model.

[0012] In the figure: 1, first core yarn; 2, second core yarn; 3, first outer covering yarn; 4, second outer covering yarn. DETAILED DESCRIPTION

[0013] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0014] Example: A composite yarn, such as Figure 1 As shown, it includes a core yarn bundle and an outer covering layer. The surface of the core yarn bundle is provided with a spiral first ridge, and the outer covering layer is provided with a spiral second ridge. The spiral direction of the first ridge is opposite to that of the second ridge.

[0015] Specifically, the first ridge is raised relative to the other parts of the core yarn bundle, the inner side of the outer covering is in contact with the outer surface of the core yarn bundle, and the second ridge is raised relative to the other parts of the outer covering. The intersection of the first ridge and the second ridge forms a convex point on the surface of the yarn, and then forms a concave-convex structure on the surface of the yarn, showing the characteristics of slub yarn. At the same time, the various parts that constitute the yarn remain in close contact with each other, and the opposite twist directions of the core yarn bundle and the outer covering are coordinated to avoid loose yarn.

[0016] like Figure 1 As shown, the core yarn bundle is formed by twisting several first core yarns 1 and a single second core yarn 2 in the same direction, the diameter of the second core yarn 2 is larger than the diameter of the first core yarn 1, and the outer covering layer is formed by twisting two first outer covering yarns 3 and a single second outer covering yarn 4 in the same direction, the diameter of the second outer covering yarn 4 is the same as the diameter of the second core yarn 2, and the diameter of the second outer covering yarn 4 is larger than the diameter of the first outer covering yarn 3.

[0017] Specifically, two first core yarns 1 and a single second core yarn 2 are twisted in S-twist to form a core yarn bundle, the second core yarn 2 forms a first ridge, two first outer covering yarns 3 and a single second outer covering yarn 4 are wrapped around the core yarn bundle in an N-twist form an outer covering layer, and the second outer covering yarn 4 forms a second ridge. Compared with the case where there is a large difference in diameter, the second core yarn 2 and the second outer covering yarn 4 of the same diameter bulge outward more obviously when overlapping.

[0018] like Figure 1As shown, two spiral gaps are provided between the two first outer covering yarns 3, the second outer covering yarn 4 is located in one of the gaps, the twist of the second outer covering yarn 4 is greater than the twist of the second core yarn 2, and the second outer covering yarn 4 is twisted by wear-resistant fiber yarns. Specifically, the two first outer covering yarns 3 are arranged in a circular array outside the core yarn bundle, and two gaps are formed between the two first outer covering yarns 3. The second outer covering yarn 4 is located in one gap, and the other gap remains vacant, further enhancing the concave-convex structure of the yarn surface. At the same time, by increasing the twist of the second outer covering yarn 4, the second outer covering yarn 4 is increased. The density of the overlapping part of the second outer covering yarn 4 and the second core yarn 2, and the different twist of the second outer covering yarn 4 and the second core yarn 2 make the convex points formed by the overlap of the two more disorderly, thereby increasing the complexity of the concave-convex structure of the yarn surface. In this embodiment, the wear-resistant fiber yarn is specifically nylon fiber yarn, and the first outer covering yarn 3 and the second outer covering yarn 4 are both twisted by nylon fiber yarn, which ensures the wear resistance of the yarn surface. The first core yarn 1 and the second core yarn 2 are both twisted by polyester fiber yarn, and the polyester fiber yarn has good ductility, which ensures the ductility of the yarn.

[0019] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A composite yarn, characterized in that: The invention comprises a core yarn bundle and an outer covering layer. The surface of the core yarn bundle is provided with a spiral first ridge. The outer covering layer is provided with a spiral second ridge. The spiral direction of the first ridge is opposite to that of the second ridge.

2. The composite yarn according to claim 1, characterized in that: The core yarn bundle is formed by twisting a plurality of first core yarns (1) and a single second core yarn (2) in the same direction, and the diameter of the second core yarn (2) is larger than the diameter of the first core yarn (1).

3. The composite yarn according to claim 2, characterized in that: The outer covering layer is formed by twisting two first outer covering yarns (3) and a single second outer covering yarn (4) in the same direction, the diameter of the second outer covering yarn (4) is the same as the diameter of the second core yarn (2), and the diameter of the second outer covering yarn (4) is larger than the diameter of the first outer covering yarn (3).

4. The composite yarn according to claim 3, characterized in that: Two spiral gaps are provided between the two strands of the first outer covering yarn (3), and the second outer covering yarn (4) is located in one of the gaps.

5. The composite yarn according to claim 3, characterized in that: The twist of the second outer covering yarn (4) is greater than the twist of the second core yarn (2).

6. The composite yarn according to claim 3, characterized in that: The second outer covering yarn (4) is twisted from wear-resistant fiber yarns.

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