阅读说明：本技术 一种抗菌莫代尔复合面料的制备方法 (Preparation method of antibacterial modal composite fabric ) 是由 程丹彤 于 2020-05-26 设计创作，主要内容包括：本发明涉及面料技术领域,尤其涉及一种抗菌莫代尔复合面料的制备方法,该方法按照下述步骤进行：辐射接枝处理莫代尔纤维、改性处理艾草纤维、混纺。本发明面料纤维本身吸附性好,面料的杀菌成分释放缓慢,有效保证长时间使用时抑菌效果不会有明显的下降；而且,对螨虫也有良好的抑制效果；通过减少面料表面的微生物活动,降低面料纤维被微生物降解的概率,提高面料的使用时间。(The invention relates to the technical field of fabrics, in particular to a preparation method of an antibacterial modal composite fabric, which comprises the following steps: radiation grafting treatment of modal fiber, modification treatment of wormwood fiber and blending. The fabric fiber has good adsorbability, and the bactericidal components of the fabric are slowly released, so that the bacteriostatic effect is effectively ensured not to be obviously reduced in long-term use; in addition, the mite-killing agent also has good inhibition effect on mites; by reducing the activity of microorganisms on the surface of the fabric, the probability of degrading fabric fibers by microorganisms is reduced, and the service time of the fabric is prolonged.)

1. The preparation method of the antibacterial modal composite fabric is characterized by comprising the following steps of:

A. radiation grafting treated modal fibers

Mixing modal fiber with clear water 15-18 times of the mass of the modal fiber, soaking for 10-15min, adjusting the ph of the mixed solution to 4.5-5.3 by malic acid, soaking for 3-5min at 30-35 ℃, and then drying at 0.1-0.3 standard atmospheric pressure and 50-55 ℃; placing the modal fiber in a sealed container, vacuumizing the container, injecting nitrogen, heating to 30-35 ℃, preserving heat for 10-16s, extracting the nitrogen, injecting the nitrogen again, heating to 28-33 ℃, preserving heat for 8-10s, and extracting the nitrogen; then injecting glutaraldehyde mixed solution into the container, heating to 45-48 ℃, preserving heat for 15-18min, and radiating modal fibers by using an electron accelerator; then reducing the temperature to 38-40 ℃, and preserving the heat for 15-20 min; taking out the modal fiber, and washing with deionized water under 0.5-0.75 standard atmospheric pressure for 15-20 min; the glutaraldehyde mixed solution is prepared by mixing betulinic acid, Sumen resin acid, glutaraldehyde and deionized water according to the mass ratio of 0.3:0.5:3: 37;

B. modified moxa fiber

Heating folium Artemisiae Argyi fiber to 70-80 deg.C with microwave, naturally cooling to room temperature, and heating folium Artemisiae Argyi fiber to 60-70 deg.C with microwave; then placing the wormwood fiber in 8% sodium hydroxide solution, heating to 40-45 deg.C, treating for 8-12min, taking out wormwood fiber, washing with distilled water for 20-30 min; placing the wormwood fiber in an alpha-olefin sulfonate solution, heating to 60-70 ℃, treating for 30-50min, reducing the temperature to 50-55 ℃, adding tert-butyl peroxybenzoate, and stirring for reacting for 1-3 h; vacuum drying folium Artemisiae Argyi fiber at room temperature, washing with distilled water for 20-30min, mixing folium Artemisiae Argyi fiber with nanoparticle sol, and ultrasonic treating at 40-45 deg.C for 20-30 min; then taking out the wormwood fiber, soaking in saturated sodium caseinate solution, stirring for 15-20min, adding glycerol, soaking for 20-30min, taking out the wormwood fiber, heating to 80-90 ℃, washing with water for 2-3h, and drying;

C. blend of

Combining the Kante silk fiber and the wormwood fiber into a core, using the modal fiber as an outer layer to prepare a core-spun yarn, blending the core-spun yarn with the mint fiber, the collagen fiber and the Kevlar, and dyeing, printing and post-treating to obtain the fabric; the mass ratio of the core-spun yarn to the mint fiber to the collagen fiber to the Kevlar is 1:5:1: 4.

2. The preparation method of the antibacterial modal composite fabric according to claim 1, wherein in the step A, the mass ratio of the modal fiber to the glutaraldehyde mixed solution is 1: 7.

3. The method for preparing antibacterial modal composite fabric according to claim 1, wherein in the step a, the radiation dose of the electron accelerator to the modal fiber is 75-85 KGy.

4. The method for preparing the antibacterial modal composite fabric according to claim 1, wherein in the step B, the mass ratio of the wormwood fibers to the alpha-olefin sulfonate solution is 1: 3; the alpha-olefin sulfonate solution is 3-5% of alpha-olefin sodium sulfonate solution.

5. The method for preparing antibacterial modal composite fabric according to claim 1, wherein in the step B, the amount of the tert-butyl peroxybenzoate is 0.3-0.5% of the mass of the wormwood fiber.

6. The method for preparing the antibacterial modal composite fabric according to claim 1, wherein in the step B, the method for preparing the nanoparticle sol comprises the following steps: mixing 100-120 parts of water and 1-3 parts of isomeric hexanol by mass, heating to 30-35 ℃, stirring for 20-30min, adding 0.8-3 parts of nano sulfur powder, stirring for 8-12min, adding 5-10 parts of nano copper oxide, and stirring for 20-30min, wherein the mass ratio of the wormwood fiber to the nano sol is 1: 5; the mass ratio of the wormwood fiber, the saturated sodium caseinate solution and the glycerol is 1:10: 0.03.

7. The method for preparing the antibacterial modal composite fabric as claimed in claim 1, wherein in the step C, the mass ratio of the Karte silk fiber to the wormwood fiber is 1: 3.

Technical Field

The invention relates to the technical field of textile manufacturing, in particular to a preparation method of an antibacterial modal composite fabric.

Background

Modal (Modal) fiber is a regenerated cellulose fiber whose chemical composition is cellulose. International standard ISO 2076: 1999(E) defined modal fibers which are high wet modulus, high breaking strength regenerated cellulose fibers made from specific viscose and regeneration bath compositions which achieve a higher degree of molecular orientation when the fibers are stretch coagulated. In addition, the International chemical fiber standardization institute defines that modal fibers are regenerated cellulose with high strength and high wet modulus obtained by a processing process, and the regenerated cellulose has a wet breaking strength of more than 2.20cN/dtex and a wet elongation at break of less than 15%.

The modal fiber has the advantages of skin-friendly property, air permeability, wrinkle resistance, rebound resilience, drapability and the like. However, modal fibers with antimicrobial properties have been studied less extensively, essentially as simple modified adsorbtions. For example, the preparation method of the antibacterial modal fiber with the patent number of CN201811245080.1 is characterized in that silver nitrate and dimethyl diallyl ammonium chloride are mixed to prepare an antibacterial liquid, then cotton pulp is modified and the spinning solution prepared from the antibacterial liquid is processed into the modal fiber, so that the inhibitory effect on staphylococcus aureus and escherichia coli is achieved, but in the preparation process, the nano silver is poor in adsorption and fusion, the antibacterial effect is long under a single condition, and the durability is poor under the condition of the polyacid polyhydroxide facing human body fluid. And for example, a non-woven material containing bamboo charcoal and modal as per patent number CN201810954128.X, and a preparation method, a sanitary material and application thereof, the non-woven material takes the bamboo charcoal modal fiber as a raw material, but the non-woven material has the advantages of reduced structural performance, single function and limited use while taking the bamboo charcoal activity into consideration. For example, in the production method of yak wool/apocynum venetum/modal blended yarn with the patent number of CN201611014924.2, the antibacterial effect of the fabric is achieved by utilizing the precious antibacterial property of apocynum venetum fiber, but the antibacterial method is single, and the broad spectrum and the effectiveness of the antibacterial property are insufficient.

The research of the reaction promotion of the radiation treatment starts in the early 20 th century, the application of the reaction promotion is more and more along with the improvement of the technology, but the research of manufacturing the fabric according to the influence of the radiation on macromolecules is less, so that the research of providing the fabric reinforced by the radiation treatment is necessary.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a preparation method of an antibacterial modal composite fabric, which is specifically carried out according to the following steps:

A. radiation grafting treated modal fibers

Mixing modal fiber with clear water 15-18 times of the mass of the modal fiber, soaking for 10-15min, adjusting the ph of the mixed solution to 4.5-5.3 by malic acid, soaking for 3-5min at 30-35 ℃, and then drying at 0.1-0.3 standard atmospheric pressure and 50-55 ℃; placing the modal fiber in a sealed container, vacuumizing the container, injecting nitrogen, heating to 30-35 ℃, preserving heat for 10-16s, extracting the nitrogen, injecting the nitrogen again, heating to 28-33 ℃, preserving heat for 8-10s, and extracting the nitrogen; then injecting glutaraldehyde mixed solution into the container, heating to 45-48 ℃, preserving heat for 15-18min, and radiating modal fibers by using an electron accelerator; then reducing the temperature to 38-40 ℃, and preserving the heat for 15-20 min; taking out the modal fiber, and washing with deionized water under 0.5-0.75 standard atmospheric pressure for 15-20 min; the glutaraldehyde mixed solution is prepared by mixing betulinic acid, Sumen resin acid, glutaraldehyde and deionized water according to the mass ratio of 0.3:0.5:3: 37; the radiation dose of the electron accelerator to the modal fiber is 75-85 KGy.

B. Modified moxa fiber

Heating folium Artemisiae Argyi fiber to 70-80 deg.C with microwave, naturally cooling to room temperature, and heating folium Artemisiae Argyi fiber to 60-70 deg.C with microwave; then placing the wormwood fiber in 8% sodium hydroxide solution, heating to 40-45 deg.C, treating for 8-12min, taking out wormwood fiber, washing with distilled water for 20-30 min; placing the wormwood fiber in an alpha-olefin sulfonate solution, heating to 60-70 ℃, treating for 30-50min, reducing the temperature to 50-55 ℃, adding tert-butyl peroxybenzoate, and stirring for reacting for 1-3 h; vacuum drying folium Artemisiae Argyi fiber at room temperature, washing with distilled water for 20-30min, mixing folium Artemisiae Argyi fiber with nanoparticle sol, and ultrasonic treating at 40-45 deg.C for 20-30 min; then taking out the wormwood fiber, soaking in saturated sodium caseinate solution, stirring for 15-20min, adding glycerol, soaking for 20-30min, taking out the wormwood fiber, heating to 80-90 ℃, washing with water for 2-3h, and drying; the frequency of the microwave is 2000-2200MHz, and the power is 200-300W;

C. blend of

Combining the Kante silk fiber and the wormwood fiber into a core, using the modal fiber as an outer layer to prepare a core-spun yarn, blending the core-spun yarn with the mint fiber, the collagen fiber and the Kevlar, and dyeing, printing and post-treating to obtain the fabric; the mass ratio of the core-spun yarn to the mint fiber to the collagen fiber to the Kevlar is 1:5:1: 4.

Further, in the step A, the mass ratio of the modal fiber to the glutaraldehyde mixed solution is 1: 7.

Further, in the step B, the mass ratio of the wormwood fibers to the alpha-olefin sulfonate solution is 1: 3; the alpha-olefin sulfonate solution is 3-5% of alpha-olefin sodium sulfonate solution.

Further, in the step B, the dosage of the tert-butyl peroxybenzoate is 0.3-0.5% of the mass of the wormwood fiber.

Further, in step B, the method for preparing the nanoparticle sol comprises: mixing 100-120 parts of water and 1-3 parts of isomeric hexanol by mass, heating to 30-35 ℃, stirring for 20-30min, adding 0.8-3 parts of nano sulfur powder, stirring for 8-12min, adding 5-10 parts of nano copper oxide, and stirring for 20-30min, wherein the mass ratio of the wormwood fiber to the nano sol is 1: 5; the mass ratio of the wormwood fiber, the saturated sodium caseinate solution and the glycerol is 1:10: 0.03.

Further, in the step C, the mass ratio of the Kangte silk fiber to the wormwood fiber is 1: 3.

Compared with the prior art, the invention has the technical effects that:

the invention specially carries out electron radiation on modal fibers, directly penetrates fiber molecules through high-energy radiation, excites the high-speed oscillation of molecules, enables the surfaces and deep layers of the fibers to be ionized, forms free radicals inside and outside the fibers and promotes the release of chemical bond energy on the surfaces of the fibers; then reducing the temperature and washing with deionized water to reduce the generation of homopolymer; grafting reaction with betulinic acid, Sumen resin acid and glutaraldehyde to promote copolymerization and form stable grafting on the fiber surface to produce bacteriostatic groups of betulinic acid and Sumen resin acid and reach lasting antibacterial effect; simultaneously, through mixing with glutaraldehyde, promote the combination absorption with the cellulose with the help of electron radiation, can improve modal fibre's antibacterial effect, can also promote modal fibre structural optimization, promote its structural performance, with glutaraldehyde's cushioning effect, with the help of glutaraldehyde's active group, guarantee modal fibre's close skin effect.

The wormwood fibers are treated by microwaves, so that the porosity of the fibers is further increased, the fibers are modified and then adsorbed by adding nano sulfur and nano copper oxide, the adsorption efficiency of the fibers on the nano particles is improved, and then the casein is adopted for sealing holes, so that the loss of the nano particles is reduced, and the lasting effect of the nano particles is improved; the mint fiber, the collagen fiber and the Kevlar are introduced in combination with a blending mode, so that the strength of the fiber fabric is further enhanced, and the softness and the sensory comfort of the fabric are ensured.

The fabric fiber has good adsorbability, and the bactericidal components of the fabric are slowly released, so that the bacteriostatic effect is effectively ensured not to be obviously reduced in long-term use; moreover, the active groups are promoted to be mixed with the nano-sulfur through the photolysis of the nano-copper oxide, and a plurality of sterilizing sulfur compounds are formed by virtue of components in the air; on the surface of the fabric, the fabric becomes an efficient sterilization active group, can change cell membranes and genetic substances of microorganisms, can inhibit common escherichia coli, staphylococcus aureus and the like, can also generate an inhibition effect on viruses, and has a good inhibition effect on mites; by reducing the activity of microorganisms on the surface of the fabric, the probability of degrading fabric fibers by microorganisms is reduced, and the service time of the fabric is prolonged.

Detailed Description

The technical solution of the present invention is further defined below with reference to the specific embodiments, but the scope of the claims is not limited to the description. The electron accelerator is a high-frequency high-voltage electron accelerator provided by Jiangsu Dasheng accelerator manufacturing company.