High-toughness vortex spinning yarn

Abstract

The utility model discloses a high-toughness vortex spinning yarn which comprises a high-toughness core yarn, a first wrapping fiber layer and a second wrapping fiber layer which are arranged in sequence. The high-toughness core yarn comprises bio-based nylon 56 filaments and modal fiber yarns wrapping the outer sides of the bio-based nylon 56 filaments; fibers used by the first wrapping fiber layer are cotton fibers; and fibers used by the second wrapping fiber layer are bio-based nylon 56 fibers. According to the high-toughness vortex spinning yarn, the nylon fiber yarn and the modal fiber yarn are adopted in the core yarn, and both the nylon fiber yarn and the modal fiber yarn have good toughness, so that the toughness of the vortex spinning yarn is improved. And the bio-based nylon 56, the modal and the cotton fibers used in the yarn all have degradability.

Description

Technical Field

[0001] The utility model relates to a high-tenacity vortex-spun yarn, belonging to the technical field of vortex-spun yarns. Background Art

[0002] Vortex spinning is an improved spinning equipment suitable for spinning pure cotton based on air-jet spinning. Compared with traditional ring spinning, it has the characteristics of short spinning process, high production efficiency, online quality monitoring, high degree of automation and intelligence, and also has the advantages of greatly reducing labor and reducing yarn hairiness. Therefore, vortex spinning yarn is processed into needle and cotton fabrics with many excellent properties. Vortex spinning core-spun yarn is a yarn with a core added on the basis of vortex spinning to improve its strength and wear resistance. The disadvantages of vortex spinning core-spun yarn are as follows: 1. Poor durability: Since the fiber ends of the core-spun yarn are still exposed, they are easily subject to friction and wear, so they are not as durable as traditional yarns. 2. Unstable twist: The detailed characteristics and fiber structure of vortex spinning core-spun yarn are affected by various factors such as fiber length, diameter and tightness, so the twist is not stable enough, it is easy to break during use, and its toughness is poor. How to prepare a vortex spinning yarn with high toughness has become a problem to be solved. Utility Model Content

[0003] The utility model aims to provide a high-tenacity vortex-spun yarn, which adopts polyamide fiber and modal fiber yarn as core yarn and has high tenacity.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:

[0005] The utility model relates to a high-tenacity vortex-spun yarn, comprising a high-tenacity core yarn, a first covering fiber layer and a second covering fiber layer which are arranged in sequence;

[0006] The high-tenacity core yarn includes bio-based nylon 56 filaments and modal fiber yarn wrapped around the outside of the bio-based nylon 56 filaments;

[0007] The fiber used in the first covering fiber layer is cotton fiber;

[0008] The fiber used in the second covering fiber layer is bio-based nylon 56 fiber.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the cotton fiber is silver-loaded antibacterial cotton fiber.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: a first wrapping yarn layer 4 is arranged between the first wrapping fiber layer 2 and the second wrapping fiber layer 3; the fiber used in the first wrapping yarn layer 4 is hollow viscose fiber.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: the outer side of the bio-based nylon 56 filament is also provided with biodegradable polyester filaments arranged in parallel or crosswise with the modal fiber yarn.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: the degradable polyester filaments are polylactic acid filaments.

[0013] The beneficial effects of the utility model are as follows: the high-tenacity vortex-spun yarn involved in the utility model uses nylon fiber and modal fiber yarn in the core yarn, both of which have good tenacity, thereby improving the tenacity of the vortex-spun yarn. In addition, the bio-based nylon 56, modal and cotton fibers used in the yarn are all degradable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a high-tenacity vortex-spun yarn involved in Example 1;

[0015] Figure 2 It is a schematic diagram of the structure of the high-tenacity vortex spun yarn involved in the second embodiment.

[0016] The markings in the figure are as follows: 1-high tenacity core yarn; 2-first covering fiber layer; 3-second covering fiber layer; 4-first wrapping yarn layer. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Embodiment 1

[0019] Combination Figure 1 The embodiment is described in detail. A high-tenacity vortex-spun yarn according to the embodiment comprises a high-tenacity core yarn 1, a first covering fiber layer 2 and a second covering fiber layer 3 arranged in sequence.

[0020] The high tenacity core yarn 1 includes bio-based nylon 56 filaments and modal fiber yarns wrapped around the outside of the bio-based nylon 56 filaments. That is, in the high tenacity core yarn 1, the bio-based nylon 56 filaments are used as the core yarn, and the modal fiber yarns are used as the wrapping yarns wrapped around the outside of the bio-based nylon 56 filaments.

[0021] Bio-based nylon 56 is polypentamethylenediamine adipate polymerized from bio-based pentamethylenediamine and petroleum-based adipic acid. Bio-based pentamethylenediamine can be obtained through microbial fermentation, or by constructing an E. coli system through the whole cell method to directly convert lysine into pentamethylenediamine. L-lysine is the direct precursor of pentamethylenediamine. Traditional lysine production strains use glutamicum and E. coli as starting bacteria, and lysine is decarboxylated to prepare pentamethylenediamine. PA56 fiber can be dyed with weak acid dyes, reactive dyes and disperse dyes with strong polarity. PA56 has improved dyeability, lower dyeing temperature than PA66, and higher coloring rate. PA56 has better wear resistance than cotton, wool and viscose fibers. Adding such fibers to blended fabrics can greatly improve their wear resistance, extend service life and reduce use costs.

[0022] Modal fiber has the strength and toughness of synthetic fiber, and can also provide toughness for the vortex spun yarn.

[0023] The fiber used in the first covering fiber layer 2 is cotton fiber. The fiber used in the second covering fiber layer 3 is bio-based nylon 56 fiber.

[0024] Furthermore, the cotton fiber is silver-loaded antibacterial cotton fiber, so that the vortex spun yarn has an antibacterial effect.

[0025] Embodiment 2

[0026] Combination Figure 2 , this embodiment is described in detail. The high-tenacity vortex-spun yarn involved in this embodiment is different from that in the first embodiment in that a first wrapping yarn layer 4 is provided between the first wrapping fiber layer 2 and the second wrapping fiber layer 3; the fiber used in the first wrapping yarn layer 4 is hollow viscose fiber. The hollow viscose fiber can improve the good warmth retention effect due to its hollow structure.

[0027] The difference from the embodiment is that: the outer side of the bio-based nylon 56 filament is also provided with a biodegradable polyester filament arranged parallel or crosswise with the modal fiber yarn. The biodegradable polyester filament is a polylactic acid filament. The polyester fiber can also be vortex-spun to improve the toughness of the yarn.

[0028] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A high-tenacity vortex-spun yarn, characterized in that: It comprises a high-tenacity core yarn (1), a first covering fiber layer (2) and a second covering fiber layer (3) which are arranged in sequence; The high-tenacity core yarn (1) comprises bio-based nylon 56 filaments and modal fiber yarns wrapped around the outside of the bio-based nylon 56 filaments; The fibers used in the first covering fiber layer (2) are cotton fibers; The fibers used in the second covering fiber layer (3) are bio-based nylon 56 fibers.

2. A high-tenacity vortex spun yarn according to claim 1, characterized in that: The cotton fiber is silver-loaded antibacterial cotton fiber.

3. A high-tenacity vortex spun yarn according to claim 1, characterized in that: A first wrapping yarn layer (4) is arranged between the first wrapping fiber layer (2) and the second wrapping fiber layer (3); the fibers used in the first wrapping yarn layer (4) are hollow viscose fibers.

4. A high-tenacity vortex spun yarn according to claim 1, characterized in that: The outer side of the bio-based nylon 56 filament is also provided with biodegradable polyester filaments arranged in parallel or crosswise with the modal fiber yarn.

5. A high-tenacity vortex spun yarn according to claim 4, characterized in that: The degradable polyester filaments are polylactic acid filaments.

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