Coated yarn with melt spinning coating

Abstract

The coated yarn with the melt spinning coating comprises a main core unit and a coating unit, and the coating unit is arranged on the outer side of the main core unit and used for conducting coating protection on the main core unit; the coating unit comprises male coating yarns and female coating yarns, and the male coating yarns and the female coating yarns are sequentially and alternately wound on the outer side of the main core unit to form an anti-falling fastening layer; and each coating unit further comprises a plastic particle melting layer which is used for coating the surface of the anti-falling fastening layer and complementary fibers in the corresponding main core unit where the physical properties of the long fibers are insufficient. Through the arrangement of the coating unit, the external plastic particle melting layer and the external main core unit are protected, and meanwhile, the bonding strength of the coated plastic particle melting layer can be better improved through fiber complementation between the external plastic particle melting layer and the anti-falling fastening layer in the coating process.

Description

Technical Field

[0001] The utility model relates to the field of coated yarns, in particular to a coated yarn with a melt-spun coating. Background Art

[0002] Core-spun yarn, also known as composite yarn or covered yarn, is a new type of yarn composed of two or more fibers. The original core-spun yarn is a short fiber and short fiber core-spun yarn developed with cotton fiber as the sheath and polyester staple yarn as the core.

[0003] At present, most traditional coated yarns are composed of an inner core and an outer coating layer. Since the surface of the inner core is relatively smooth, the bonding strength between the outer coating layer and the inner core is relatively low during the actual hot-melt coating process, so the coating layer is easy to lift up and detach at the break of the yarn.

[0004] Therefore, we made an improvement on this and proposed a covered yarn with a melt-spun coating. Summary of the invention

[0005] The utility model aims to provide a coated yarn with a melt-spun coating, which solves the problem that the existing coated yarn with a melt-spun coating is easy to separate and pill when in use.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] A coated yarn with a melt-spun coating, comprising a main core unit and a coating unit, wherein the coating unit is arranged outside the main core unit for coating and protecting the main core unit;

[0008] The coating unit comprises a male coating wire and a female coating wire, and the male coating wire and the female coating wire are alternately wound around the outer side of the main core unit to form an anti-slip fastening layer;

[0009] The coating unit also includes a molten layer of plastic particles for coating the surface of the anti-slip fastening layer and the complementary fibers for the deficiencies in the physical properties of the long fibers in the corresponding main core unit.

[0010] As a preferred technical solution of the present application, the male covered yarn is formed by twisting at least two monofilaments.

[0011] As a preferred technical solution of the present application, the mother coated yarn is formed by twisting at least two monofilaments.

[0012] As a preferred technical solution of the present application, the male covering wire and the female covering wire are alternately wound together on the surface of the main core unit in sequence to form a closed anti-slip fastening layer.

[0013] As a preferred technical solution of the present application, the main core unit includes a first core wire, a second core wire and a third core wire, and the first core wire, the second core wire and the third core wire are all made of high temperature resistant fiber.

[0014] As a preferred technical solution of the present application, the first core wire, the second core wire and the third core wire are twisted together to form a main core unit;

[0015] The surface of the main core unit is also coated with a resin coating layer for forming a filling and bonding with the anti-slip fastening layer on its outer side.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the scheme of this application:

[0018] 1. Through the provided coating unit, the external plastic particle melting layer protects the main core unit externally, and can also complement the fibers between the anti-stripping fastening layers during the coating process, thereby better improving the bonding strength of the plastic particle melting layer after coating;

[0019] 2. Through the cooperation between the male covering wire and the female covering wire, the molten layer of the plastic particles in the molten state during the wrapping process can be better filled in the relative gaps, so that the connection strength with the main core unit can be better, and it is not easy to cause warping and pilling at the break. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a coated yarn with a melt-spun coating provided in this application;

[0021] Figure 2 A schematic cross-sectional view of a coated yarn with a melt-spun coating provided in the present application;

[0022] Figure 3 Schematic diagram of the exploded structure of the coating unit of the coated yarn with melt-spun coating provided in this application.

[0023] Indicated in the figure:

[0024] 1. main core unit; 11. first core wire; 12. second core wire; 13. third core wire; 14. resin coating layer;

[0025] 2. Coating unit; 21. Male coating wire; 22. Female coating wire; 23. Anti-slip fastening layer; 24. Plastic particle melting layer. DETAILED DESCRIPTION

[0026] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0027] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0031] like Figure 1-Figure 3 As shown, this embodiment proposes a coated yarn with a melt-spun coating, including a main core unit 1 and a coating unit 2, wherein the coating unit 2 is arranged on the outside of the main core unit 1 for coating and protecting it; the coating unit 2 includes a male coating wire 21 and a female coating wire 22, and the male coating wire 21 and the female coating wire 22 are alternately wound on the outside of the main core unit 1 in sequence to form an anti-slip fastening layer 23, wherein the coating unit 2 also includes a plastic particle melt layer 24 for coating the surface of the anti-slip fastening layer 23 and the corresponding main core unit 1 The long fiber has insufficient physical properties and is complementary to the fiber;

[0032] The male covering wire 21 is twisted by at least two monofilaments, and the female covering wire 22 is twisted by at least two monofilaments. The male covering wire 21 and the female covering wire 22 are alternately wound on the surface of the main core unit 1 to form a closed anti-slip fastening layer 23, wherein the twisting amount of the male covering wire 21 and the female covering wire 22 can be reasonably increased according to the collected twisting conditions;

[0033] The main core unit 1 includes a first core wire 11, a second core wire 12 and a third core wire 13, and the first core wire 11, the second core wire 12 and the third core wire 13 are all made of high temperature resistant fiber. In the actual coating process of the main core unit 1 made of high temperature resistant fiber, the molten layer 24 of plastic particles in a high temperature state will not affect the main core unit 1, thereby ensuring the overall stability of the coated yarn.

[0034] The first core wire 11, the second core wire 12 and the third core wire 13 are twisted together to form a main core unit 1, wherein the surface of the main core unit 1 is also coated with a resin coating layer 14 for forming a filling and bonding with the anti-slip fastening layer 23 on the outside thereof. After the first core wire 11, the second core wire 12 and the third core wire 13 are twisted together to form the main core unit 1, and the resin coating layer 14 is coated on the surface thereof, a resin layer can be formed on the surface of the main core unit 1, which further strengthens the overall structural strength of the main core unit 1 after twisting, and at the same time can form a bond with the externally wound male sheathed wire 21 and the female sheathed wire 22, further improving the overall strength of the sheathed yarn;

[0035] After the preparation of the main core unit 1 is completed, the plastic particle molten layer 24 is coated on the surface of the wound male coating wire 21 and the female coating wire 22. The specific steps are as follows:

[0036] 1. Material selection: According to the requirements of product properties, choose suitable plastic particles as melt, and ensure that the melting point of the fiber body of the main core unit 1 is greater than the temperature of the plastic particles in the molten state;

[0037] 1.1. Dry the molten plastic particles for later use;

[0038] 1.2. Threading: According to the production requirements, select a suitable mold, thread the prepared main core unit 1 from the back to the front, and wait for the threading;

[0039] 2. Melt coating: the dried raw material particles are melted and injected into the coating mold using the corresponding special screw, and the long fibers are coated while moving forward;

[0040] 2.1. Cooling and forming: after the melt is coated with the long fiber, it enters the ice water for cooling and forming;

[0041] 2.2. Remove water and apply oil. After the formed covered yarn is cooled and discharged, the water needs to be removed and the spinning oil needs to be applied.

[0042] Through the above-mentioned coating operation, the plastic particles in the molten state can be fully filled in the gap between the male coating wire 21 and the female coating wire 22, so that the fibers between them can be complementary, thereby improving the coating strength between the coating layer formed after the plastic particles are cooled and the main core unit 1, which not only ensures the overall tensile strength of the coated yarn, but also effectively avoids the coating layer from easily detaching and curling up at the cutting point to cause pilling.

[0043] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A coated yarn with a melt-spun coating, characterized in that: It comprises a main core unit (1) and a covering unit (2), wherein the covering unit (2) is arranged outside the main core unit (1) and is used to cover and protect the main core unit; The coating unit (2) comprises a male coating wire (21) and a female coating wire (22), wherein the male coating wire (21) and the female coating wire (22) are alternately wound around the outer side of the main core unit (1) to form an anti-slip fastening layer (23); The coating unit (2) further comprises a plastic particle molten layer (24) for coating the surface of the anti-slip fastening layer (23) and the complementary fibers to the deficiencies in the long fiber physical properties in the corresponding main core unit (1).

2. A coated yarn with a melt-spun coating according to claim 1, characterized in that: The male covered yarn (21) is formed by twisting at least two monofilaments.

3. A coated yarn with a melt-spun coating according to claim 2, characterized in that: The mother covering yarn (22) is formed by twisting at least two monofilaments.

4. A coated yarn with a melt-spun coating according to claim 3, characterized in that: The male covering wire (21) and the female covering wire (22) are alternately wound together on the surface of the main core unit (1) in sequence to form a closed anti-slip fastening layer (23).

5. The coated yarn with melt-spun coating according to claim 1, characterized in that: The main core unit (1) comprises a first core wire (11), a second core wire (12) and a third core wire (13), wherein the first core wire (11), the second core wire (12) and the third core wire (13) are all made of high temperature resistant fiber.

6. A coated yarn with a melt-spun coating according to claim 5, characterized in that: The first core wire (11), the second core wire (12) and the third core wire (13) are twisted together to form a main core unit (1); The surface of the main core unit (1) is also coated with a resin coating layer (14) for forming a filling and bonding with the anti-slip fastening layer (23) on its outer side.

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