Moisture absorption ITY composite fiber

Abstract

The utility model discloses a moisture absorption ITY composite fiber which comprises polyester POY filaments, moisture conduction polyester FDY filaments and hydrophilic polyester FDY filaments, wherein the polyester POY filaments, the moisture conduction polyester FDY filaments and the hydrophilic polyester FDY filaments are arranged in parallel. Grooves are formed in the outer surfaces of monofilaments in the moisture-conducting polyester FDY filaments. According to the moisture-absorbing ITY composite fiber, the POY filaments and the FDY filaments have different thermal shrinkage rates, the POY filaments after thermal treatment have the characteristic of high shrinkage, and a raising effect can be formed, so that a prepared fabric has good hand feeling. And the used moisture-conducting polyester FDY with grooves on the surface enables the ITY composite fiber to have moisture-conducting and sweat-discharging effects. And the used hydrophilic polyester FDY filament can improve the moisture absorption effect.

Description

Technical Field

[0001] This utility model relates to a moisture-absorbing ITY composite fiber, belonging to the field of ITY blended fiber technology. Background Technology

[0002] As textile fabrics develop towards lightweight, high-density, environmentally friendly, functional, and low-fiber composites, the market demand for differentiated fibers is increasing. As an important type of differentiated fiber, heterogeneous shrinkage blended yarn (ITY) made from polyester POY and polyester FDY features diverse raw material combinations and flexible performance design. Fabrics made from ITY fibers possess excellent hand feel, a unique napping effect, and good breathability, making them widely used. However, ITY composite fiber filaments are almost entirely made of polyester filaments, resulting in poor moisture absorption. Therefore, developing a moisture-wicking ITY composite fiber has become a key challenge. Utility Model Content

[0003] The purpose of this invention is to provide a moisture-wicking ITY composite fiber with good moisture-wicking effect and moisture absorption.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0005] The present invention relates to a moisture-absorbing ITY composite fiber, comprising parallel polyester POY filaments, moisture-wicking polyester FDY filaments, and hydrophilic polyester FDY filaments; the outer surface of the monofilaments of the moisture-wicking polyester FDY filaments has grooves.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the cross-section of the single filament in the moisture-wicking polyester FDY filament is flat, and a groove is provided on one side surface of its long side.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the cross-section of the monofilament in the hydrophilic polyester FDY filament is trilobal, and hydrophilic groups are present on its surface.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the moisture-wicking polyester FDY filament is a fully dull or semi-dull polyester FDY filament.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the polyester POY filament is a fully dull or semi-dull polyester POY filament.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the moisture-absorbing ITY composite fiber also includes bio-based nylon 56 filament.

[0011] The beneficial effects of this utility model are as follows: This utility model relates to a moisture-wicking ITY composite fiber, which uses POY filaments and FDY filaments with different heat shrinkage rates. After heat treatment, POY exhibits high shrinkage characteristics, which can create a napped effect, resulting in a fabric with a good hand feel. Furthermore, the grooved moisture-wicking polyester FDY used gives this ITY composite fiber a moisture-wicking and perspiration-driving effect. Additionally, the hydrophilic polyester FDY filaments used further enhance the moisture absorption effect. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the moisture-absorbing ITY composite fiber filament involved in Example 1;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of a single filament in a moisture-wicking polyester FDY filament;

[0014] Figure 3 This is a schematic diagram of the structure of the moisture-absorbing ITY composite fiber filament involved in Example 2.

[0015] The markings in the diagram are explained as follows: 1-Polyester POY filament; 2-Moisture-wicking polyester FDY filament; 3-Hydrophilic polyester FDY filament; 4-Bio-based nylon 56 filament; 21-Groove; 5-Network dot. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] Example 1

[0018] Combination Figure 1 and Figure 2 This embodiment will be described in detail below. The moisture-wicking ITY composite fiber involved in this embodiment includes parallel polyester POY filaments 1, moisture-wicking polyester FDY filaments 2, and hydrophilic polyester FDY filaments 3; the outer surface of each filament in the moisture-wicking polyester FDY filament 3 has grooves. The POY and FDY filaments have different heat shrinkage rates, with POY having a larger heat shrinkage rate. After heat shrinkage, the moisture-wicking polyester FDY filaments 2 and 3 will curl around the polyester POY filament 1 under the pull of the POY filament 1, thereby giving the fabric an excellent hand feel and napping effect. After heat shrinkage, it forms a... Figure 1The diagram illustrates how moisture-wicking polyester FDY filament 2 and hydrophilic polyester FDY filament 3 create a napping effect. Furthermore, the moisture-wicking ITY composite fiber has network points 5 along its length to entangle the polyester POY filament 1, moisture-wicking polyester FDY filament 2, and hydrophilic polyester FDY filament 3. Network points 5 are created by using network nozzles to interlock the parallel high-shrinkage filament 1 and polyester DTY filament 2; that is, high-speed airflow is used to entangle and fix the filaments at network points 3. The number of network points 5 is 20-30 per meter.

[0019] Furthermore, such as Figure 2 As shown, the cross-section of the monofilament in the moisture-wicking polyester FDY filament 2 is flat, and a groove 21 is provided on one side of its long side surface. The groove 21 on the surface guides sweat through the wicking effect, thereby achieving the effect of moisture absorption and perspiration wicking. The two ends of the cross-section of the monofilament in the moisture-wicking polyester FDY filament 2 are arc-shaped, and there is an arc-shaped segment on the long side of its cross-section. Two adjacent arc-shaped segments are grooves 21.

[0020] Furthermore, the monofilaments in the hydrophilic polyester FDY filament 3 have a trilobal cross-section and hydrophilic groups on their surface. Modified polyester masterbatch containing hydrophilic groups and nanoparticles is added to the melt during the spinning process, and then blended with conventional PET chips in a specified ratio during spinning. This introduces hydrophilic groups onto the fiber surface, improving the wetting properties of sweat on the fiber. Its trilobal cross-section, after appropriate alkali reduction treatment, retains some hydrophilic groups on the fiber surface, while simultaneously creating a roughened surface with micro-pits or bark-like grooves. Therefore, this modified polyester fabric has rapid wetting, moisture absorption, and diffusion capabilities. The irregular cross-section and surface roughening also increase the specific surface area for sweat evaporation.

[0021] Furthermore, the wet-spun polyester FDY filament 2 is a fully dull or semi-dull polyester FDY filament. The polyester POY filament 1 is a fully dull or semi-dull polyester POY filament. The fully dull and semi-dull finish of the polyester filaments is due to the addition of titanium dioxide during melt spinning, which provides a dulling effect. Titanium dioxide has UV protection properties, thus giving the ITY composite fiber UV protection. Consequently, the fabric prepared has UV protection while maintaining a napped effect, thus protecting the user. In this embodiment, fully dull finish is selected.

[0022] Example 2

[0023] Combination Figure 3This embodiment will be described in detail below. The difference between this embodiment and Embodiment 1 is that the moisture-absorbing ITY composite fiber also includes bio-based nylon 56 filament 4. The bio-based nylon 56 filament 4 also has good moisture absorption properties, thereby further improving the moisture absorption effect of the ITY composite fiber. Furthermore, since bio-based nylon is used, it also has good abrasion resistance.

[0024] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A moisture-absorbing ITY composite fiber, characterized in that, It includes parallel polyester POY filaments (1), moisture-wicking polyester FDY filaments (2) and hydrophilic polyester FDY filaments (3); the outer surface of the monofilaments in the moisture-wicking polyester FDY filaments (2) has grooves.

2. The moisture-absorbing ITY composite fiber according to claim 1, characterized in that, The cross-section of the single filament in the moisture-wicking polyester FDY filament (2) is flat, and a groove (21) is provided on one side surface of its long side.

3. The moisture-absorbing ITY composite fiber according to claim 1, characterized in that, The cross-section of the monofilament in the hydrophilic polyester FDY filament (3) is trilobal, and it has hydrophilic groups on its surface.

4. The moisture-absorbing ITY composite fiber according to claim 1, characterized in that, The moisture-wicking polyester FDY filament (2) is a fully dull or semi-dull polyester FDY filament.

5. The moisture-absorbing ITY composite fiber according to claim 1, characterized in that, The polyester POY filament (1) is a fully dull or semi-dull polyester POY filament.

6. A moisture-absorbing ITY composite fiber according to any one of claims 1 to 5, characterized in that, The moisture-absorbing ITY composite fiber also includes bio-based nylon 56 filaments (4).

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