Composite antibacterial polyester filament

Abstract

The utility model discloses a composite antibacterial polyester filament, belongs to the technical field of textiles, and solves the problems that if the composite antibacterial polyester filament is required to have antibacterial performance from inside to outside, natural fibers are required to be combined together when the composite antibacterial polyester filament is required to be changed into spinning, and for pure physical spinning, the composite antibacterial polyester filament cannot have antibacterial performance inside and outside at present. Comprising a special-shaped section core wire and a plurality of outer wrapping wires, a plurality of spacing bar grooves are formed in the outer ring of the special-shaped section core wire, the spacing bar grooves are filled with a plurality of antibacterial particles, the special-shaped section core wire is arranged in a self-twisting mode, the outer wrapping wires are all arranged on the outer ring of the special-shaped section core wire, and the outer sides of the outer wrapping wires are coated with antibacterial coatings. Antibacterial particles are contained in the spacing bar grooves, openings of the spacing bar grooves are covered with the outer wrapping filaments, the particles are clamped after the special-shaped cross section core filaments are self-twisted, the internal and external antibacterial effect is ensured, natural fibers do not need to be added, and the purity of the polyester filaments is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of textiles, in particular to a composite antibacterial polyester yarn. Background Art

[0002] Fibers with antimicrobial properties refer to those fiber materials that can inhibit or kill microorganisms such as bacteria and fungi, thereby reducing the growth and spread of pathogens on textiles. These fibers can obtain antimicrobial functions through natural antimicrobial properties or through post-treatment. Natural antimicrobial fibers, such as chitin and chitosan fibers, hemp fibers and bamboo fibers, have good antimicrobial properties due to their special chemical composition and structure. For example, chitin fibers can bind to the negatively charged cell walls of bacteria due to the positively charged amino groups on their molecular chains, thereby inhibiting the growth and reproduction of bacteria. The natural antimicrobial component "bambooquinone" in bamboo fibers has an inhibitory effect on bacteria.

[0003] In addition to natural fibers, fibers modified by chemical or physical methods can also acquire antimicrobial properties. Chemical modification usually involves adding antimicrobial agents such as metal ions, quaternary ammonium compounds or chitosan to the fibers. For example, composite spinning is to composite fibers containing antimicrobial ingredients with other fibers. Physical modification methods include plasma treatment or nanotechnology, which impart antimicrobial properties to fibers by forming antimicrobial coatings or structures on the fiber surface.

[0004] In the above processing methods, if it is necessary to make the fiber have antibacterial properties from the inside out, it is generally operated through the above methods, especially the physical method, which can only make the surface of the fiber have antibacterial properties. If it is required to have antibacterial properties from the inside out, then it is required to combine the natural fibers together during spinning. For pure physical spinning, it is currently impossible to achieve antibacterial properties both inside and outside.

[0005] Therefore, a composite antibacterial polyester yarn is proposed to solve or alleviate the above problems. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a composite antibacterial polyester yarn.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A composite antibacterial polyester yarn comprises a core yarn with a special-shaped cross-section and a plurality of outer sheath yarns. The outer ring of the core yarn with a special-shaped cross-section has a plurality of spacing grooves, the spacing grooves are filled with a plurality of antibacterial particles, the core yarn with a special-shaped cross-section is self-twisted, the plurality of outer sheath yarns are arranged on the outer ring of the core yarn with a special-shaped cross-section, and the outer side of the outer sheath yarn is coated with an antibacterial coating.

[0009] Preferably, the special-section core wire comprises a central wire and a plurality of petal strips distributed in an annular array on its outer circle, and spacing grooves are formed between adjacent petal strips.

[0010] Preferably, a plurality of the outer covering wires are twisted in the same direction on the outside of the special-section core wire.

[0011] Preferably, a plurality of the outer covering wires are hot pressed in the length direction thereof to form a plurality of hot pressing portions evenly spaced apart.

[0012] Preferably, the core wire with special-shaped cross-section and the outer sheath wire are both made of polyester.

[0013] Preferably, the antibacterial particles are nano-silver particles, and the antibacterial coating is a nano-scale titanium dioxide coating.

[0014] The utility model has the following beneficial effects:

[0015] The polyester yarn of the utility model utilizes the structure of the spacing strip groove, which can not only effectively accommodate and fix multiple antibacterial particles, but also realizes the shielding of the spacing strip groove opening by the outer ring outer wire. This design ensures the stability of the antibacterial particles inside the yarn, prevents the particles from falling off during processing or use, thereby ensuring the overall antibacterial performance of the yarn. The self-twisting design of the special-section core wire further enhances the ability to fix the antibacterial particles, so that the spacing between the petal strips on the core wire is reduced under the action of self-twisting, and the antibacterial particles are clamped more tightly. This tight clamping effect not only improves the retention of the antibacterial particles, but also makes the internal structure of the yarn more uniform, thereby maintaining a consistent antibacterial effect throughout the service life of the yarn.

[0016] In addition, the outer sheath has an antibacterial coating that gives the yarn additional antibacterial properties. This coating can form a protective film that effectively inhibits the invasion and reproduction of external microorganisms. This design not only makes the yarn antibacterial on the inside, but also forms an antibacterial barrier on the outside, ensuring all-round antibacterial protection of the yarn from the inside out.

[0017] It is worth mentioning that the production process of this polyester yarn is completely based on physical processing technology, without the need to add any natural fibers, thus ensuring the purity of the polyester yarn. This pure polyester yarn not only reduces the impact of other types of chemical fibers on its texture during the production process, but is also more convenient during use.

[0018] In general, the polyester yarn of the utility model achieves acceptable antibacterial performance and purely physical antibacterial processing through unique structural design and processing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a structural schematic diagram of the utility model;

[0020] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the structure of the special-shaped core wire after self-twisting in the utility model;

[0022] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0023] 1. Special-shaped core wire; 2. Petal strips; 3. Spacer grooves; 4. Outer wire; 5. Hot pressing part. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] A composite antibacterial polyester yarn, such as Figure 1 As shown, it includes a core wire 1 with a special-shaped cross-section and a plurality of outer covering wires 4, and the core wire 1 with a special-shaped cross-section and the outer covering wires 4 are both made of polyester.

[0026] like Figure 3 and 4 As shown, there are several spacing grooves 3 on the outer circle of the special-section core wire 1. The special-section core wire 1 includes a central wire and several petal strips 2 distributed in a ring array on its outer circle. The spacing grooves 3 are formed between adjacent petal strips 2. The spacing grooves 3 are filled with several antibacterial particles made of nanosilver particles, and the special-section core wire 1 is self-twisted.

[0027] like Figure 1 and 4 As shown, a number of outer covering wires 4 are arranged on the outer ring of the special-section core wire 1, a number of outer covering wires 4 are twisted in the same direction on the outside of the special-section core wire 1, a number of outer covering wires 4 are hot pressed in the length direction to form a number of hot pressing parts 5 evenly spaced, and the outer side of the outer covering wires 4 is coated with an antibacterial coating, which is a nano-scale titanium dioxide coating.

[0028] The utility model realizes the effective containment and stabilization of antibacterial particles through the built-in spacing groove 3 structure of the special-section core wire 1. These particles are placed in the spacing groove 3 and then tightly covered by the outer sheath wire 4 of the outer ring to form a protective barrier, which not only blocks the opening of the spacing groove 3 but also enhances the antibacterial performance of the yarn. It is particularly worth mentioning that after the special-section core wire 1 is self-twisted, the spacing between the petal strips 2 thereon is reduced, so that the adjacent petal strips 2 can clamp the antibacterial particles more tightly, thereby ensuring that the antibacterial particles will not fall off from the polyester wire. This unique design ensures that the yarn also has excellent antibacterial and antibacterial functions.

[0029] In addition, the antibacterial coating on the outer yarn 4 further enhances the antibacterial effect of the yarn, so that the surface of the yarn also has the ability to inhibit the growth of microorganisms. This dual antibacterial mechanism ensures that the polyester yarn has a consistent antibacterial effect from the inside to the outside, providing users with comprehensive protection. It is worth emphasizing that the preparation process of this polyester yarn is completely based on physical methods and does not require the addition of any natural antibacterial fibers, thereby maintaining the purity of the material and avoiding the influence of chemical fibers of other materials on the polyester yarn.

[0030] When the polyester yarn needs to be produced, it is spun through a spinneret, which has a central hole for spraying out the central yarn and six groups of petal holes evenly spaced outside the central hole. There are three petal holes in each group, and the aperture of the petal holes is smaller than that of the central hole. After the extruder hot-melts the polyester particles, the primary fibers are sprayed out through the spinneret, so that the primary fibers in the molten state that have not yet solidified can be combined to form the structure of the special-section core yarn 1.

[0031] After condensation, the special-section core yarn 1 is twisted by a winding machine to form a self-twisting structure. During this process, the antibacterial particles are sprinkled on the outside of the special-section core yarn 1 so that it is embedded in the spacing groove 3. In addition, the opening of the spacing groove 3 can be tightened during the self-twisting process to prevent the antibacterial particles from falling out easily.

[0032] Several outer covering wires 4 are immersed in nano-scale titanium dioxide coating to form an antibacterial coating, and then are wound around the outer ring of the special-section core wire 1 through a wire doubling machine, and finally are hot-pressed in the length direction through a hot press to form a hot-pressed portion 5, so that the outer covering wires 4 on the hot-pressed portion 5 can be fixed together to prevent the polyester wire from spreading.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite antibacterial polyester yarn, characterized in that: The invention comprises a core wire (1) of a special-shaped cross-section, and a plurality of outer sheath wires (4), wherein the outer ring of the core wire (1) of the special-shaped cross-section has a plurality of spacing grooves (3), the spacing grooves (3) are filled with a plurality of antibacterial particles, and the core wire (1) of the special-shaped cross-section is self-twisted, and the plurality of outer sheath wires (4) are all arranged in the outer ring of the core wire (1) of the special-shaped cross-section, and the outer side of the outer sheath wire (4) is coated with an antibacterial coating.

2. The composite antibacterial polyester yarn according to claim 1, characterized in that: The special-section core wire (1) comprises a central wire and a plurality of petal strips (2) distributed in an annular array on its outer circle, and spacer strip grooves (3) are formed between adjacent petal strips (2).

3. The composite antibacterial polyester yarn according to claim 1, characterized in that: A plurality of the outer covering wires (4) are twisted in the same direction on the outside of the core wire (1) with a special-shaped cross-section.

4. A composite antibacterial polyester yarn according to claim 1 or 3, characterized in that: The plurality of outer covering wires (4) are hot pressed in the length direction thereof to form a plurality of hot pressing portions (5) arranged at even intervals.

5. The composite antibacterial polyester yarn according to claim 1, characterized in that: The core wire (1) with a special cross-section and the outer sheath wire (4) are both made of polyester.

6. The composite antibacterial polyester yarn according to claim 1, characterized in that: The antibacterial particles are nano silver particles, and the antibacterial coating is a nano titanium dioxide coating.

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