Antibacterial antistatic cellulose blended yarn and method for preparing the same

Abstract

This invention discloses an antibacterial and antistatic cellulose blended yarn. The raw materials for preparing the blended yarn include natural fibers, deodorizing hemp pulp fibers, antistatic carbon fibers, mineral-modified fibers, and an antistatic agent. The raw materials, by weight, include the following components: 20-30 parts natural fibers, 10-12 parts deodorizing hemp pulp fibers, 10-20 parts antistatic carbon fibers, and 6-8 parts mineral-modified fibers. The natural fibers include bamboo fibers, cotton fibers, and hemp fibers, and possess inherent antibacterial components. The mineral-modified fiber raw materials are nano-zinc oxide and nano-titanium dioxide particles. The advantages of this invention compared to existing technologies are: the antibacterial and antistatic cellulose blended yarn of this invention has a soft and smooth hand feel and improved weaving performance; it retains the unique antibacterial and moisture-wicking functions of hemp fibers, while inheriting the comfortable and skin-friendly characteristics of cotton and viscose regenerated cellulose fibers; and it improves the antistatic performance of the blended yarn.

Description

Technical Field

[0001] This invention relates to the field of cellulose blended yarn technology, specifically to an antibacterial and antistatic cellulose blended yarn and its preparation method. Background Technology

[0002] Polyester, also known as polyester fiber, is a synthetic fiber made by chemical polycondensation of organic dicarboxylic acids and diols. It is the simplest and cheapest of the three major synthetic fibers. It has advantages such as high strength, wear resistance, good elasticity, resistance to deformation, corrosion resistance, light resistance, good chemical resistance, easy washing and quick drying. It has a wide range of applications in the fields of civil textiles (such as clothing, bedding, decorative fabrics, etc.) and industrial fiber products (such as filter materials, insulation materials, tire cords, etc.).

[0003] With the advancement of modern technology and the improvement of people's living standards, society has increasingly higher requirements for the functionality of textile fabrics. However, traditional cellulose blended yarns have poor antistatic, antibacterial, and flame-retardant properties. During the processing and use of fabrics, they are subject to static electricity due to friction and compression. Static electricity easily attracts dust particles from the air, and dust contains various viruses, bacteria, and other substances harmful to the human body. Furthermore, static electricity can easily cause localized sparks, producing an itchy and uncomfortable electric shock sensation. In addition, in the hot summer, people tend to sweat after activity. Ordinary cellulose blended yarns have poor hydrophilicity and weak moisture absorption, making it difficult for sweat to be released. Long-term use can lead to a stuffy feeling, reducing wearing comfort. Moreover, bacteria are more likely to grow in humid conditions, seriously limiting the application areas of cellulose blended yarns.

[0004] Currently, antistatic agents, flame retardants, and antibacterial agents are often added to improve the performance of cellulose blended yarns. However, conventional antistatic agents, flame retardants, and antibacterial agents have poor compatibility with polyester and are easily shed after repeated washing, resulting in performance loss and making them unsuitable for long-term use. Therefore, there is an urgent need to invent a cellulose blended yarn with antibacterial, antistatic, and flame-retardant properties that is stable and long-lasting, in order to meet the higher demands in the field of cellulose blended yarn technology.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The technical problem this invention aims to solve is to overcome the above-mentioned technical defects and provide an antibacterial and antistatic cellulose blended yarn and its preparation method. After pretreatment with cellulase and compounding with a softener, the blended yarn has a soft and smooth hand feel and improved weaving performance. The development of deodorizing hemp pulp fiber and blended yarn, combined with low-temperature plasma treatment, retains the unique antibacterial and moisture-wicking functions of hemp fibers, while inheriting the comfortable and skin-friendly characteristics of cotton and viscose regenerated cellulose fibers. It also adds deodorizing function and can quickly restore its moisture-wicking and deodorizing effects after multiple washes, without irritating the skin and ensuring high safety. The use of conductive fibers with unique properties, combined with new processes, reduces machine speed, minimizes the phenomenon of wrapping the leather rollers and coils, and rationally selects process parameters to improve the antistatic performance of the blended yarn.

[0007] To address the aforementioned problems, the technical solution of this invention is an antibacterial and antistatic cellulose blended yarn. The raw materials for preparing the blended yarn include natural fibers, deodorizing hemp pulp fibers, antistatic carbon fibers, mineral-modified fibers, and an antistatic agent. The raw materials, by weight, include the following components: 20-30 parts of natural fibers, 10-12 parts of deodorizing hemp pulp fibers, 10-20 parts of antistatic carbon fibers, and 6-8 parts of mineral-modified fibers. The natural fibers include bamboo fibers, cotton fibers, and hemp fibers, and contain antibacterial components. The mineral-modified fiber raw materials are nano-zinc oxide and nano-titanium dioxide particles.

[0008] Preferably, the particle size of the mineral-modified fiber raw material is <100nm.

[0009] Preferably, the raw materials include the following components by weight: 20 parts natural fiber, 10 parts deodorizing hemp pulp fiber, 10 parts antistatic carbon fiber, 6 parts mineral modified fiber, 1 part antistatic agent, and 1 part antibacterial and deodorizing agent.

[0010] Preferably, the raw materials include the following components by weight: 25 parts natural fiber, 11 parts deodorizing hemp pulp fiber, 15 parts antistatic carbon fiber, 7 parts mineral modified fiber, 2 parts antistatic agent, and 2 parts antibacterial and deodorizing agent.

[0011] Preferably, the raw materials include the following components by weight: 30 parts natural fiber, 12 parts deodorizing hemp pulp fiber, 20 parts antistatic carbon fiber, 8 parts mineral modified fiber, 3 parts antistatic agent, and 3 parts antibacterial and deodorizing agent.

[0012] This application also discloses a method for preparing antibacterial and antistatic cellulose blended yarn, including the following steps: Step 1: According to the mass proportions, natural fibers, deodorized hemp pulp fibers, antistatic carbon fibers, mineral modified fibers, and antistatic agents are added to a high-speed mixer in sequence for mixing. Through drawing, coarse sanding, fine spinning, and winding, cellulose blended yarn is formed. Step 2: Place the cellulose blended yarn in a low-temperature plasma device for low-temperature plasma treatment to improve the antibacterial properties of the blended yarn. Step 3: Prepare buffer solutions with different pH values, add acidic cellulase, immerse the yarn in the enzyme solution, heat to 75°C to deactivate the enzyme, and then conduct water washing and drying tests. Prepare a softener finishing solution at a bath ratio of 1:10, add a penetrant, finish at 50°C for 40 minutes, and then conduct water washing and drying tests.

[0013] As a preferred option, the drawing process uses high-hardness rubber rollers at a speed of 180 rpm. The sliver passes over the fourth, third, and second rollers and is directly fed into the first roller to mix with the drafted conductive fibers before entering the bundler. After passing through the coiling section, the fibers are mixed into a sliver. The winding process uses a low winding speed to reduce fly yarn and hairiness. A photoelectric electronic yarn clearing device or a yarn clearing plate device is used to remove harmful yarn defects.

[0014] The advantages of this invention compared to existing technologies are: 1. The fiber blended yarn of this invention undergoes pretreatment with cellulase and softening compounding to achieve a soft and smooth hand feel, improving weaving performance. The development of deodorizing hemp pulp fiber and blended yarn, combined with low-temperature plasma treatment, retains the unique antibacterial and moisture-wicking functions of hemp fibers, while inheriting the comfortable and skin-friendly characteristics of cotton and viscose regenerated cellulose fibers. It also incorporates deodorizing properties and can quickly regain its moisture-wicking and deodorizing effects after multiple washes, without irritating the skin and ensuring high safety. The use of conductive fibers with unique properties, combined with new processes, reduces machine speed, minimizes the phenomenon of wrapping the leather rollers and coils, and optimizes process parameters to improve the antistatic properties of the blended yarn. Detailed Implementation

[0015] To make the content of this invention easier to understand, the technical solutions in the embodiments of this invention will be clearly and completely described below in conjunction with the embodiments of this invention. Example 1

[0016] An antibacterial and antistatic cellulose blended yarn is prepared from raw materials including natural fibers, deodorizing hemp pulp fibers, antistatic carbon fibers, mineral-modified fibers, and an antistatic agent. The raw materials, by weight, include the following components: 20 parts natural fibers, 10 parts deodorizing hemp pulp fibers, 10 parts antistatic carbon fibers, and 6 parts mineral-modified fibers. The natural fibers include bamboo fibers, cotton fibers, and hemp fibers, and contain antibacterial components. The mineral-modified fiber raw materials are nano-zinc oxide and nano-titanium dioxide particles, with a particle size of <100nm.

[0017] The method for preparing the antibacterial and antistatic cellulose blended yarn includes the following steps: Step 1: According to the mass proportions, natural fibers, deodorizing hemp pulp fibers, antistatic carbon fibers, mineral modified fibers, and antistatic agents are sequentially added to a high-speed mixer for mixing. Through drawing, coarse sanding, fine spinning, and winding, cellulose blended yarn is formed. The drawing process uses high-hardness rubber rollers at a speed of 180 rpm. The sliver passes over rollers four, three, and two, and is directly fed into a roller to mix with the drafted conductive fibers and enter the bundler. After passing through the coiling section, it is mixed into a sliver. The winding process uses a low winding speed to reduce the increase of fly waste and hairiness. A photoelectric electronic yarn clearing device or yarn clearing plate device is used to remove harmful yarn defects.

[0018] Step 2: Place the cellulose blended yarn in a low-temperature plasma device for low-temperature plasma treatment to improve the antibacterial properties of the blended yarn. Step 3: Prepare buffer solutions with different pH values, add acidic cellulase, immerse the yarn in the enzyme solution, heat to 75°C to deactivate the enzyme, and then conduct water washing and drying tests. Prepare a softener finishing solution at a bath ratio of 1:10, add a penetrant, finish at 50°C for 40 minutes, and then conduct water washing and drying tests. Example 2

[0019] An antibacterial and antistatic cellulose blended yarn is prepared from raw materials including natural fibers, deodorizing hemp pulp fibers, antistatic carbon fibers, mineral modified fibers, and an antistatic agent. The raw materials, by weight, include the following components: 25 parts natural fibers, 11 parts deodorizing hemp pulp fibers, 15 parts antistatic carbon fibers, and 7 parts mineral modified fibers. The natural fibers include bamboo fibers, cotton fibers, and hemp fibers, and contain antibacterial components. The mineral modified fiber raw materials are nano zinc oxide and nano titanium dioxide particles, with a particle size of <100nm.

[0020] The method for preparing the antibacterial and antistatic cellulose blended yarn includes the following steps: Step 1: According to the mass proportions, natural fibers, deodorizing hemp pulp fibers, antistatic carbon fibers, mineral modified fibers, and antistatic agents are sequentially added to a high-speed mixer for mixing. Through drawing, coarse sanding, fine spinning, and winding, cellulose blended yarn is formed. The drawing process uses high-hardness rubber rollers at a speed of 180 rpm. The sliver passes over rollers four, three, and two, and is directly fed into a roller to mix with the drafted conductive fibers and enter the bundler. After passing through the coiling section, it is mixed into a sliver. The winding process uses a low winding speed to reduce the increase of fly waste and hairiness. A photoelectric electronic yarn clearing device or yarn clearing plate device is used to remove harmful yarn defects.

[0021] Step 2: Place the cellulose blended yarn in a low-temperature plasma device for low-temperature plasma treatment to improve the antibacterial properties of the blended yarn. Step 3: Prepare buffer solutions with different pH values, add acidic cellulase, immerse the yarn in the enzyme solution, heat to 75°C to deactivate the enzyme, and then conduct water washing and drying tests. Prepare a softener finishing solution at a bath ratio of 1:10, add a penetrant, finish at 50°C for 40 minutes, and then conduct water washing and drying tests. Example 3

[0022] An antibacterial and antistatic cellulose blended yarn is prepared from raw materials including natural fibers, deodorizing hemp pulp fibers, antistatic carbon fibers, mineral modified fibers, and an antistatic agent. The raw materials, by weight, include the following components: 30 parts natural fibers, 12 parts deodorizing hemp pulp fibers, 20 parts antistatic carbon fibers, and 8 parts mineral modified fibers. The natural fibers include bamboo fibers, cotton fibers, and hemp fibers, and contain antibacterial components. The mineral modified fiber raw materials are nano zinc oxide and nano titanium dioxide particles, with a particle size of <100nm.

[0023] The method for preparing the antibacterial and antistatic cellulose blended yarn includes the following steps: Step 1: According to the mass proportions, natural fibers, deodorizing hemp pulp fibers, antistatic carbon fibers, mineral modified fibers, and antistatic agents are sequentially added to a high-speed mixer for mixing. Through drawing, coarse sanding, fine spinning, and winding, cellulose blended yarn is formed. The drawing process uses high-hardness rubber rollers at a speed of 180 rpm. The sliver passes over rollers four, three, and two, and is directly fed into a roller to mix with the drafted conductive fibers and enter the bundler. After passing through the coiling section, it is mixed into a sliver. The winding process uses a low winding speed to reduce the increase of fly waste and hairiness. A photoelectric electronic yarn clearing device or yarn clearing plate device is used to remove harmful yarn defects.

[0024] Step 2: Place the cellulose blended yarn in a low-temperature plasma device for low-temperature plasma treatment to improve the antibacterial properties of the blended yarn. Step 3: Prepare buffer solutions with different pH values, add acidic cellulase, immerse the yarn in the enzyme solution, heat to 75°C to deactivate the enzyme, and then conduct water washing and drying tests. Prepare a softener finishing solution at a bath ratio of 1:10, add a penetrant, finish at 50°C for 40 minutes, and then conduct water washing and drying tests.

[0025] Performance testing The elongation at break of the antibacterial and antistatic cellulose blended yarns prepared in Examples 1-3 was determined according to the national standard GB / T14344-93 "Test Method for Breaking Strength and Elongation at Break of Synthetic Fiber Filaments and Textured Yarns". Fabrics were made from the antibacterial and antistatic cellulose blended yarns prepared in Examples 1-3 using a circular knitting machine. The fabrics were cut into test samples according to different test standards and the following performance tests were conducted: Flame retardancy test: The test method was GB / T5455-2014 Determination of vertical damage length, smoldering and afterflame time of textiles. Antistatic properties: The surface charge density (uC / m2) of the fabric is determined according to the national standard GB / T12703.2-2009 "Textiles - Electrostatic Test Methods - Part 2: Surface Charge Density" to test the antistatic performance (the lower the surface charge density, the better the antistatic performance). Water absorption rate: The water absorption rate was determined according to the national standard GB / T21655.1-2008 "Evaluation of moisture absorption and quick-drying properties of textiles - Part 1: Single-item combination test method"; Antibacterial rate: The antibacterial rates of Escherichia coli and Staphylococcus aureus were determined according to the national standard GB / T20944.2-2007 "Evaluation of antibacterial properties of textiles - Part 2: Absorption method". Durability: The flame retardant, antistatic and antibacterial properties of the samples were measured before and after 50 water washes using the same standard.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and, without departing from the spirit of the invention, design similar structures and embodiments without creative effort, all such designs should fall within the protection scope of the present invention.

Claims

1. An antibacterial and antistatic cellulose blended yarn, characterized in that, The raw materials for preparing blended yarns include natural fibers, deodorizing hemp pulp fibers, antistatic carbon fibers, mineral-modified fibers, and antistatic agents. The raw materials, by weight, include the following components: 20-30 parts natural fibers, 10-12 parts deodorizing hemp pulp fibers, 10-20 parts antistatic carbon fibers, and 6-8 parts mineral-modified fibers. The natural fibers include bamboo fibers, cotton fibers, and hemp fibers, and contain antibacterial components. The mineral-modified fiber raw materials are nano zinc oxide and nano titanium dioxide particles.

2. The antibacterial and antistatic cellulose blended yarn according to claim 1, characterized in that: The mineral-modified fiber raw material has a particle size of <100nm.

3. The antibacterial and antistatic cellulose blended yarn according to claim 1, characterized in that: The raw materials, by weight, include the following components: 20 parts natural fiber, 10 parts deodorizing hemp pulp fiber, 10 parts antistatic carbon fiber, and 6 parts mineral modified fiber.

4. The antibacterial and antistatic cellulose blended yarn according to claim 1, characterized in that: The raw materials, by weight, include the following components: 25 parts natural fiber, 11 parts deodorizing hemp pulp fiber, 15 parts antistatic carbon fiber, and 7 parts mineral-modified fiber.

5. The antibacterial and antistatic cellulose blended yarn according to claim 1, characterized in that: The raw materials, by weight, include the following components: 30 parts natural fiber, 12 parts deodorizing hemp pulp fiber, 20 parts antistatic carbon fiber, and 8 parts mineral-modified fiber.

6. The method for preparing antibacterial and antistatic cellulose blended yarn according to claims 1-5, characterized in that: Includes the following steps: Step 1: According to the mass proportions, natural fibers, deodorized hemp pulp fibers, antistatic carbon fibers, mineral modified fibers, and antistatic agents are added to a high-speed mixer in sequence for mixing. Through drawing, coarse sanding, fine spinning, and winding, cellulose blended yarn is formed. Step 2: Place the cellulose blended yarn in a low-temperature plasma device for low-temperature plasma treatment to improve the antibacterial properties of the blended yarn. Step 3: Prepare buffer solutions with different pH values, add acidic cellulase, immerse the yarn in the enzyme solution, heat to 75°C to deactivate the enzyme, and then conduct water washing and drying tests. Prepare a softener finishing solution at a bath ratio of 1:10, add a penetrant, finish at 50°C for 40 minutes, and then conduct water washing and drying tests.

7. The method for preparing antibacterial and antistatic cellulose blended yarn according to claim 8, characterized in that: The drawing process uses high-hardness rubber rollers at a speed of 180 rpm. The sliver passes over rollers four, three, and two, and is directly fed into roller one to mix with the drafted conductive fibers before entering the bundler. After passing through the coiling section, the fibers are mixed into a sliver. The winding process uses a low winding speed to reduce fly yarn and hairiness. It uses a photoelectric electronic yarn clearing device or a yarn clearing plate device to remove harmful yarn defects.