Antibacterial yarn material and preparation method thereof

Abstract

The invention is suitable for the technical field of antibacterial yarns, and provides an antibacterial yarn material and a preparation method thereof. The antibacterial yarn material is prepared from the following components in parts by mass: 36 to 54 parts of cotton fiber, 3 to 7 parts of nano cellulose / metal oxide compound, 2 to 7 parts of bamboo charcoal fiber, 6 to 14 parts of chitin / ZnSO4 / TiO2 compound, 0.7 to 1.3 parts of tea tree oil, 3.3 to 4.5 parts of negative oxygen ion polyester yarn, 2.9 to 3.5 parts of chitosan fiber and 0.4 to 1 part of nano zinc oxide. Preferably, the nano cellulose / metal oxide compound is one or more of a nano cellulose / TiO2 compound, a nano cellulose / ZnO compound and a nano cellulose / CuO compound; preferably, the antibacterial yarn material further comprises antibacterial fibers, and the mass fraction of the antibacterial fibers is 3.5 to 6.5 parts. Preferably, the antibacterial yarn material further comprises a reinforcing agent, and the mass part of the reinforcing agent is 0.5 to 0.8 part. The prepared yarn material is good in antibacterial effect and has a wide application prospect.

Description

Technical Field

[0001] The invention relates to the technical field of antibacterial yarns, in particular to an antibacterial yarn material and a preparation method thereof. Background Art

[0002] Yarn is a long and thin material made of fiber through spinning process, usually used in weaving, knitting or other textile processes. There are many different types of yarns according to their uses, composition and spinning methods. Yarn materials can be divided into natural yarn, synthetic yarn, recycled yarn, etc. according to fiber types; according to usage, they can be divided into fabric yarn, knitting yarn, industrial yarn, etc. Yarn is widely used in the textile industry, such as clothing fabrics, home textiles, industrial yarns, decorative materials, etc.

[0003] The antibacterial properties of yarn are very important in certain specific applications, especially in medical, hygiene, sports and daily life. Yarn needs to have certain antibacterial properties to prevent bacterial growth and improve the comfort and safety of products.

[0004] Although there are many types of existing antibacterial yarns, there is still much room for improvement in the antibacterial effect. To this end, the present invention proposes an antibacterial yarn material and a preparation method. Summary of the invention

[0005] The purpose of the present invention is to provide an antibacterial yarn material and a preparation method to solve the problem that although there are many types of antibacterial yarns in the prior art, there is still a lot of room for improvement in antibacterial effect.

[0006] To achieve the above object, the present invention provides the following technical solutions: In a first aspect, the present invention provides an antibacterial yarn material, which includes the following components and mass fractions:

[0007] 36-54 parts of cotton fiber, 3-7 parts of nano cellulose / metal oxide composite, 2-7 parts of bamboo charcoal fiber, 6-14 parts of chitin / ZnSO4 / TiO2 composite, 0.7-1.3 parts of tea tree oil, 3.3-4.5 parts of negative oxygen ion polyester yarn, 2.9-3.5 parts of chitosan fiber, and 0.4-1 part of nano zinc oxide.

[0008] Preferably, the nanocellulose / metal oxide composite is one or more of a nanocellulose / TiO2 composite, a nanocellulose / ZnO composite, and a nanocellulose / CuO composite.

[0009] Preferably, the antibacterial yarn material further comprises antibacterial fiber, and the mass fraction of the antibacterial fiber is 3.5 to 6.5 parts.

[0010] Preferably, the antibacterial fiber is one or more of AMF antibacterial fiber, antibacterial fine denier polypropylene fiber, and copper (II) complexed antibacterial fiber.

[0011] Preferably, the antibacterial yarn material further comprises a reinforcing agent, and the weight fraction of the reinforcing agent is 0.5 to 0.8 parts.

[0012] Preferably, the reinforcing agent is one or more of glass fiber and carbon fiber.

[0013] Preferably, the specification of the negative oxygen ion polyester yarn is 100D / 36F.

[0014] Preferably, the mass ratio of the nanocellulose / metal oxide composite to the chitin / ZnSO4 / TiO2 composite is 1:2.

[0015] The second aspect of the present invention provides a method for preparing the antibacterial yarn material according to the first aspect of the present invention, the preparation method comprising the following steps:

[0016] S1, Preparation of Nanocellulose / Metal Oxide Composites:

[0017] Take nanocellulose and add an appropriate amount of water to prepare a nanocellulose solution;

[0018] Take a metal salt and add an appropriate amount of water to prepare a metal salt solution;

[0019] The metal salt solution is poured into the nanocellulose solution, the temperature is raised to 60-80° C., ultrasonically vibrated for 1.5-3 hours, filtered, washed, and dried to obtain a nanocellulose / metal oxide composite;

[0020] S2, preparation of chitin / ZnSO4 / TiO2 composite:

[0021] Adding zinc sulfate to an appropriate amount of water to prepare a zinc sulfate solution;

[0022] Tetraisopropyl titanate was dissolved in ethanol, deionized water was added, and the pH value was adjusted to prepare TiO2 sol;

[0023] Dissolve chitosan in acetic acid solution, then add zinc sulfate solution and TiO2 sol at once, adjust pH to 4-6, heat to 40-50°C, react for 1-4h, filter, wash, and dry to obtain chitosan / ZnSO4 / TiO2 composite;

[0024] S3, blending the nanocellulose / metal oxide composite, the chitin / ZnSO4 / TiO2 composite and other components in proportion to prepare an antibacterial yarn material.

[0025] The present invention has at least the following beneficial effects:

[0026] The present invention provides an antibacterial yarn material and a preparation method thereof. The prepared yarn material has good antibacterial effect and has broad application prospects. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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] Example 1

[0029] This embodiment provides an antibacterial yarn material, including the following components and mass fractions:

[0030] 36 parts of cotton fiber, 3 parts of nano cellulose / metal oxide composite, 2 parts of bamboo charcoal fiber, 6 parts of chitin / ZnSO4 / TiO2 composite, 0.7 parts of tea tree oil, 3.3 parts of negative oxygen ion polyester yarn, 2.9 parts of chitosan fiber, and 0.4 parts of nano zinc oxide.

[0031] Wherein, the nanocellulose / metal oxide composite is a nanocellulose / TiO2 composite.

[0032] The antibacterial yarn material also includes antibacterial fiber, the mass fraction of the antibacterial fiber is 3.5 parts, and the antibacterial fiber is AMF antibacterial fiber.

[0033] The antibacterial yarn material also includes a reinforcing agent, the mass fraction of the reinforcing agent is 0.5 parts, and the reinforcing agent is glass fiber.

[0034] Among them, the specification of negative oxygen ion polyester yarn is 100D / 36F; the mass ratio of nanocellulose / metal oxide composite and chitin / ZnSO4 / TiO2 composite is 1:2.

[0035] The preparation method of the above antibacterial yarn material comprises the following steps:

[0036] S1, Preparation of Nanocellulose / TiO2 Composites:

[0037] Take nanocellulose and add an appropriate amount of water to prepare a nanocellulose solution;

[0038] Take TiCl4 and add appropriate amount of water to prepare TiCl4 solution;

[0039] The TiCl4 solution was poured into the nanocellulose solution, the temperature was raised to 60°C, ultrasonically vibrated for 3 hours, filtered, washed, and dried to obtain a nanocellulose / TiO2 composite;

[0040] S2, preparation of chitin / ZnSO4 / TiO2 composite:

[0041] Adding zinc sulfate to an appropriate amount of water to prepare a zinc sulfate solution;

[0042] Tetraisopropyl titanate was dissolved in ethanol, deionized water was added, and the pH value was adjusted to prepare TiO2 sol;

[0043] Dissolve chitosan in acetic acid solution, then add zinc sulfate solution and TiO2 sol at once, adjust pH to 4, heat to 40°C, react for 4 hours, filter, wash, and dry to obtain chitosan / ZnSO4 / TiO2 composite;

[0044] S3, blending the nanocellulose / TiO2 composite, the chitin / ZnSO4 / TiO2 composite and the other components in proportion to prepare an antibacterial yarn material.

[0045] Example 2

[0046] Same as Example 1, but without antibacterial fiber and reinforcing agent.

[0047] Example 3

[0048] This embodiment provides an antibacterial yarn material, including the following components and mass fractions:

[0049] 44 parts of cotton fiber, 5 parts of nano cellulose / metal oxide composite, 4 parts of bamboo charcoal fiber, 10 parts of chitin / ZnSO4 / TiO2 composite, 0.9 parts of tea tree oil, 3.7 parts of negative oxygen ion polyester yarn, 3.1 parts of chitosan fiber, and 0.8 parts of nano zinc oxide.

[0050] Wherein, the nanocellulose / metal oxide composite is a nanocellulose / ZnO composite.

[0051] The antibacterial yarn material also includes antibacterial fiber, the mass fraction of the antibacterial fiber is 5.4 parts, and the antibacterial fiber is antibacterial fine denier polypropylene yarn.

[0052] The antibacterial yarn material also includes a reinforcing agent, the mass fraction of the reinforcing agent is 0.7 parts, and the reinforcing agent is carbon fiber.

[0053] Among them, the specification of negative oxygen ion polyester yarn is 100D / 36F; the mass ratio of nanocellulose / metal oxide composite and chitin / ZnSO4 / TiO2 composite is 1:2.

[0054] The preparation method of the above antibacterial yarn material comprises the following steps:

[0055] S1, Preparation of Nanocellulose / ZnO Composites:

[0056] Take nanocellulose and add an appropriate amount of water to prepare a nanocellulose solution;

[0057] Take ZnCl2 and add appropriate amount of water to prepare ZnCl2 solution;

[0058] Pour the ZnCl2 solution into the nanocellulose solution, heat it to 70°C, and ultrasonically vibrate for 2.5h (the pH value can be adjusted during the process to promote the formation of ZnO), filter, wash, and dry to obtain a nanocellulose / ZnO composite;

[0059] S2, preparation of chitin / ZnSO4 / TiO2 composite:

[0060] Adding zinc sulfate to an appropriate amount of water to prepare a zinc sulfate solution;

[0061] Tetraisopropyl titanate was dissolved in ethanol, deionized water was added, and the pH value was adjusted to prepare TiO2 sol;

[0062] Dissolve chitosan in acetic acid solution, then add zinc sulfate solution and TiO2 sol at once, adjust pH to 5, heat to 45°C, react for 3h, filter, wash, and dry to obtain chitosan / ZnSO4 / TiO2 composite;

[0063] S3, blending the nanocellulose / ZnO composite, the chitin / ZnSO4 / TiO2 composite and the other components in proportion to prepare an antibacterial yarn material.

[0064] Example 4

[0065] Same as Example 3, but without antibacterial fiber and reinforcing agent.

[0066] Example 5

[0067] This embodiment provides an antibacterial yarn material, including the following components and mass fractions:

[0068] 54 parts of cotton fiber, 7 parts of nano cellulose / metal oxide composite, 7 parts of bamboo charcoal fiber, 14 parts of chitin / ZnSO4 / TiO2 composite, 1.3 parts of tea tree oil, 4.5 parts of negative oxygen ion polyester yarn, 3.5 parts of chitosan fiber, and 1 part of nano zinc oxide.

[0069] Wherein, the nanocellulose / metal oxide composite is a nanocellulose / CuO composite.

[0070] The antibacterial yarn material also includes antibacterial fiber, the mass fraction of the antibacterial fiber is 6.5 parts, and the antibacterial fiber is copper (II) complexed antibacterial fiber.

[0071] The antibacterial yarn material also includes a reinforcing agent, the mass fraction of the reinforcing agent is 0.8 parts, and the reinforcing agent is glass fiber.

[0072] Among them, the specification of negative oxygen ion polyester yarn is 100D / 36F; the mass ratio of nanocellulose / metal oxide composite and chitin / ZnSO4 / TiO2 composite is 1:2.

[0073] The preparation method of the above antibacterial yarn material comprises the following steps:

[0074] S1, Preparation of Nanocellulose / CuO Composites:

[0075] Take nanocellulose and add an appropriate amount of water to prepare a nanocellulose solution;

[0076] Take CuSO4 and add appropriate amount of water to prepare CuSO4 solution;

[0077] The CuSO4 solution was poured into the nanocellulose solution, heated to 80°C, subjected to ultrasonic oscillation for 1.5 h (the pH value can be adjusted to promote the formation of CuO), filtered, washed, and dried to obtain a nanocellulose / CuO composite.

[0078] S2, preparation of chitin / ZnSO4 / TiO2 composite:

[0079] Adding zinc sulfate to an appropriate amount of water to prepare a zinc sulfate solution;

[0080] Tetraisopropyl titanate was dissolved in ethanol, deionized water was added, and the pH value was adjusted to prepare TiO2 sol;

[0081] Dissolve chitosan in acetic acid solution, then add zinc sulfate solution and TiO2 sol at once, adjust pH to 6, heat to 50°C, react for 1h, filter, wash, and dry to obtain chitosan / ZnSO4 / TiO2 composite;

[0082] S3, blending the nanocellulose / CuO composite, the chitin / ZnSO4 / TiO2 composite and the other components in proportion to prepare an antibacterial yarn material.

[0083] Example 6

[0084] Same as Example 5, but without antibacterial fiber and reinforcing agent.

[0085] Comparative Example 1

[0086] Same as Example 1, but without the nanocellulose / TiO2 composite and the chitosan / ZnSO4 / TiO2 composite.

[0087] Comparative Example 2

[0088] Same as Example 3, except that the nanocellulose / ZnO composite and the chitin / ZnSO4 / TiO2 composite are not included.

[0089] Comparative Example 3

[0090] Same as Example 5, but without the nanocellulose / CuO composite and the chitin / ZnSO4 / TiO2 composite.

[0091] The above examples and comparative examples were tested for antibacterial effects using Staphylococcus aureus, and the results are as follows:

[0092] Antibacterial rate Example 1 97.2％ Example 2 95.3％ Example 3 97.6％ Example 4 95.4％ Example 5 98.2％ Example 6 95.9％ Comparative Example 1 67.4％ Comparative Example 2 68.9％ Comparative Example 3 71.2％

[0093] In summary, the antibacterial yarn material prepared by the present invention has excellent antibacterial effect.

[0094] The above shows and describes the basic principles, main features and advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0095] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An antibacterial yarn material, characterized in that: The antibacterial yarn material includes the following components and mass fractions: 36-54 parts of cotton fiber, 3-7 parts of nano cellulose / metal oxide composite, 2-7 parts of bamboo charcoal fiber, 6-14 parts of chitin / ZnSO4 / TiO2 composite, 0.7-1.3 parts of tea tree oil, 3.3-4.5 parts of negative oxygen ion polyester yarn, 2.9-3.5 parts of chitosan fiber, and 0.4-1 part of nano zinc oxide.

2. The antibacterial yarn material according to claim 1, characterized in that: The nanocellulose / metal oxide composite is one or more of a nanocellulose / TiO2 composite, a nanocellulose / ZnO composite, and a nanocellulose / CuO composite.

3. The antibacterial yarn material according to claim 1, characterized in that: The antibacterial yarn material also includes antibacterial fibers, and the mass fraction of the antibacterial fibers is 3.5 to 6.5 parts.

4. The antibacterial yarn material according to claim 3, characterized in that: The antibacterial fiber is one or more of AMF antibacterial fiber, antibacterial fine-denier polypropylene fiber, and copper (II) complexed antibacterial fiber.

5. The antibacterial yarn material according to claim 4, characterized in that: The antibacterial yarn material also includes a reinforcing agent, and the weight percentage of the reinforcing agent is 0.5 to 0.8 parts.

6. The antibacterial yarn material according to claim 5, characterized in that: The reinforcing agent is one or more of glass fiber and carbon fiber.

7. The antibacterial yarn material according to claim 1, characterized in that: The specification of the negative oxygen ion polyester yarn is 100D / 36F.

8. The antibacterial yarn material according to claim 1, characterized in that: The mass ratio of the nanocellulose / metal oxide composite to the chitin / ZnSO4 / TiO2 composite is 1:

2.

9. A method for preparing the antibacterial yarn material according to any one of claims 1 to 8, characterized in that: The preparation method The following steps are involved: S1, Preparation of Nanocellulose / Metal Oxide Composites: Take nanocellulose and add an appropriate amount of water to prepare a nanocellulose solution; Take a metal salt and add an appropriate amount of water to prepare a metal salt solution; The metal salt solution is poured into the nanocellulose solution, the temperature is raised to 60-80° C., ultrasonically vibrated for 1.5-3 hours, filtered, washed, and dried to obtain a nanocellulose / metal oxide composite; S2, preparation of chitin / ZnSO4 / TiO2 composite: Adding zinc sulfate to an appropriate amount of water to prepare a zinc sulfate solution; Tetraisopropyl titanate was dissolved in ethanol, deionized water was added, and the pH value was adjusted to prepare TiO2 sol; Dissolve chitosan in acetic acid solution, then add zinc sulfate solution and TiO2 sol at once, adjust pH to 4-6, heat to 40-50°C, react for 1-4h, filter, wash, and dry to obtain chitosan / ZnSO4 / TiO2 composite; S3, blending the nanocellulose / metal oxide composite, the chitin / ZnSO4 / TiO2 composite and other components in proportion to prepare an antibacterial yarn material.