Antibacterial and anti-mite home textile fabric and preparation process thereof

Abstract

The present invention relates to the technical field of home textile fabric preparation, and in particular to an antibacterial and anti-mite home textile fabric and a preparation process thereof. The preparation process comprises the following steps: preparing a zinc zeolite carboxylic acid composite material; preparing purified nano-platinum; and preparing an antibacterial and anti-mite home textile fabric. The present invention forms a zinc zeolite structure similar to zeolite by compounding zinc with methylimidazole, and adds 1,3,5-benzenetricarboxylic acid to the zinc zeolite structure to form a composite metal organic framework, which can enhance the contact area with bacteria, so that 1,3,5-benzenetricarboxylic acid has the opportunity to contact key metabolic enzymes in bacterial cells and inhibit their activity. At the same time, the composite metal organic framework can slowly release zinc ions over time after combining with zinc ions, and the slowly released zinc ions have antibacterial properties, can interfere with the metabolic process of bacteria, and inhibit their growth, thereby achieving a long-lasting antibacterial effect.

Description

Technical Field

[0001] The invention relates to the technical field of home textile fabric preparation, and in particular to an antibacterial and anti-mite home textile fabric and a preparation process thereof. Background Art

[0002] With the improvement of living standards, people pay more and more attention to health and hygiene. Home textile products such as quilt covers, pillowcases, curtains, sofa covers and other fabrics have frequent contact with the human body and are prone to breed bacteria and mites, becoming an important carrier of microbial transmission. Therefore, antibacterial and anti-mite has become one of the characteristics of home textile fabrics on the market.

[0003] The existing antibacterial and anti-mite technologies mainly include nanotechnology, biotechnology and weaving technology. Nanotechnology uses materials such as nanosilver ions to give fabrics antibacterial properties through solution mixing or coating, and has a strong bactericidal effect; biotechnology uses biological enzyme treatment or natural antibacterial agents to finish fabrics, which is environmentally friendly and efficient; weaving technology uses weaving techniques such as ultra-dense weaving to reduce porosity, thereby reducing the permeability of bacteria, and its killing effect on bacteria is poor, and it needs to be used in conjunction with other technologies. The antibacterial and anti-mite home textile fabric and its preparation process provided by the present invention not only introduces bactericidal materials such as nanosilver through the method of doping nanoparticles, but also reduces the porosity of the fabric, thereby greatly improving the antibacterial and anti-mite performance of the fabric. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide an antibacterial and anti-mite home textile fabric and a preparation process thereof.

[0005] A preparation process of an antibacterial and anti-mite home textile fabric comprises the following steps:

[0006] S1: Preparation of zinc zeolite carboxylic acid composites

[0007] Mixing zinc nitrate hexahydrate methanol solution, methylimidazole and 1,3,5-benzenetricarboxylic acid methanol solution, reacting under magnetic stirring, centrifuging the product after the reaction, separating and retaining the precipitate, and vacuum drying to obtain a zinc zeolite carboxylic acid composite material;

[0008] S2: Preparation and purification of nano-platinum

[0009] PVP is added to a platinum ion solution, stirred and mixed, refluxed to obtain nano-platinum, the nano-platinum is subjected to rotary evaporation to obtain a concentrated solution, the concentrated solution is dialyzed, and rotary evaporated again to obtain purified nano-platinum, the purified nano-platinum is added to methanol, and then the zinc zeolite carboxylic acid composite material is added, heated, centrifuged, filtered to remove the liquid, and washed to obtain a nano-platinum-zinc zeolite carboxylic acid composite material;

[0010] S3: Preparation of antibacterial and anti-mite home textile fabrics

[0011] Poly (L-lactic acid) is dissolved in hexafluoroisopropanol to obtain a spinning solution, the concentration of the poly (L-lactic acid) in the spinning solution is controlled to be 10-12wt%, 13-15wt% and 16-18wt%, 5-10% of the total volume of a nano-platinum-zinc zeolite carboxylic acid composite material is added to the spinning solution with a poly (L-lactic acid) concentration of 10-12wt% to obtain a composite platinum spinning solution, 4-8% of the total mass of nano-silver particles are added to the spinning solution with a poly (L-lactic acid) concentration of 13-15wt% to obtain a composite silver spinning solution, the composite platinum spinning solution, the composite silver spinning solution and the spinning solution with a poly (L-lactic acid) concentration of 16-18wt% are spun to obtain a composite nanofiber yarn, the composite nanofiber yarn is vacuum dried to obtain an antibacterial yarn, the antibacterial yarn is used as a warp, cotton and linen fibers are used as a weft, and the warp and weft are perpendicularly interwoven to obtain an antibacterial fabric.

[0012] Furthermore, step S1 of preparing the zinc zeolite carboxylic acid composite material comprises the following steps:

[0013] S1.1: 12-15 parts by volume of zinc nitrate hexahydrate methanol solution, 20-25 parts by volume of methylimidazole and 20-30 parts by volume of 1,3,5-benzenetricarboxylic acid methanol solution were mixed, and reacted at 25-30°C and 500-550 r / min magnetic stirring for 1-1.5 h until the reaction system changed from clear to turbid;

[0014] S1.2: After the reaction is completed, the product is centrifuged at a speed of 1000-1200 r / min for 10-15 min, the precipitate is separated and retained, the precipitate is washed with methanol 3 times, and then dried in a vacuum drying oven at 50-60° C. for 24-25 h to obtain a zinc zeolite carboxylic acid composite material.

[0015] Furthermore, step S2 prepares purified nano-platinum, comprising the following steps:

[0016] S2.1: Add 66-70 parts by mass of PVP to 90-100 parts by volume of platinum ion solution, stir at 35-40°C, 60-80 r / min for 2-3 min, mix well, and reflux at 80-90°C for 3-4 h to obtain nano-platinum;

[0017] S2.2: Concentrate the nano-platinum to one fifth of its original volume in a rotary evaporator at 120-125°C and 500-600 r / min to obtain a concentrated solution, dialyze the concentrated solution for 48-50 hours, and again concentrate it to one fifth of its original volume in a rotary evaporator at 120-125°C and 500-600 r / min to obtain purified nano-platinum;

[0018] S2.3: Add 1-2 parts by mass of purified nano-platinum to 40 parts by mass of methanol, and then add 15-18 parts by mass of zinc zeolite carboxylic acid composite material, let stand at room temperature for 24 hours, then heat to 50-60°C, and centrifuge at a speed of 10000-11000r / min for 10-15min, filter out the liquid, wash with methanol 3 times, and vacuum dry at room temperature for 24-25h to obtain a nano-platinum-zinc zeolite carboxylic acid composite material.

[0019] Furthermore, step S3 prepares the antibacterial and anti-mite home textile fabric, comprising the following steps:

[0020] S3.1: dissolving poly (L-lactic acid) in hexafluoroisopropanol and stirring for 12-13 hours to obtain a spinning solution, controlling the concentration of the poly (L-lactic acid) in the spinning solution to be 10-12wt%, 13-15wt% and 16-18wt%, adding 5-10% of the total volume of the system of nano-platinum-zinc zeolite carboxylic acid composite material to the spinning solution with a poly (L-lactic acid) concentration of 10-12wt%, to obtain a composite platinum spinning solution;

[0021] S3.2: Adding 4-8% of the total mass of silver nanoparticles to a spinning solution having a poly-L-lactic acid concentration of 13-15 wt% to obtain a composite silver spinning solution;

[0022] S3.3: The composite platinum spinning solution, the composite silver spinning solution and the spinning solution with a concentration of 16-18 wt% of poly-L-lactic acid are respectively loaded into a syringe with a 21G spinning needle, and extruded outward at a speed of 0.8 mL / h to prepare a composite nanofiber yarn;

[0023] S3.4: transferring the composite nanofiber yarn to a vacuum drying oven and vacuum drying for 48-50 hours to remove the organic solvent to obtain the antibacterial yarn;

[0024] S3.5: Use antibacterial yarn as warp and cotton and linen fiber as weft, interweave the warp and weft perpendicularly to each other, with a warp density of 76-79 strands / cm and a weft density of 55-58 strands / cm, to weave an antibacterial fabric.

[0025] Furthermore, the zinc nitrate hexahydrate methanol solution is prepared by mixing zinc nitrate hexahydrate and methanol in a ratio of 0.6 g: (40-50) mL.

[0026] Furthermore, the 1,3,5-benzenetricarboxylic acid methanol solution is obtained by mixing 1,3,5-benzenetricarboxylic acid and methanol in a volume ratio of 1:(13-18).

[0027] Furthermore, the platinum ion solution is prepared by mixing 0.6 mM H2PtCl6 and anhydrous ethanol in a volume ratio of 1:(8-9).

[0028] Furthermore, the molecular weight cut-off (MWCO) of the dialysis bag is 1000D.

[0029] An antibacterial and anti-mite home textile fabric is prepared by the above-mentioned preparation process of the antibacterial and anti-mite home textile fabric.

[0030] Compared with the prior art, the present invention has at least the following beneficial effects:

[0031] 1. The present invention forms a zinc zeolite structure similar to zeolite by compounding zinc and methylimidazole, and adds 1,3,5-benzenetricarboxylic acid to the zinc zeolite structure to form a composite metal-organic framework. The composite metal-organic framework can enhance the contact area with bacteria, so that 1,3,5-benzenetricarboxylic acid has the opportunity to contact key metabolic enzymes in bacterial cells and inhibit their activity. This inhibitory effect interferes with the metabolic process of bacteria, resulting in a deficiency of energy substances and reducing power in cells, and ultimately causing cell autolysis. At the same time, the composite metal-organic framework can slowly release zinc ions over time after combining with zinc ions. The slowly released zinc ions have antibacterial properties, can interfere with the metabolic process of bacteria, and inhibit their growth, thereby achieving a long-lasting antibacterial effect.

[0032] 2. The present invention dissolves poly-L-lactic acid in hexafluoroisopropanol and then composites it with nano-silver to prepare a spinning solution. After the poly-L-lactic acid and nano-silver are composited, a PLLA / nano-silver composite material is formed by spinning, so that the nano-silver is evenly distributed in the poly-L-lactic acid, and at the same time, the specific surface area of ​​the poly-L-lactic acid is increased, and the porosity of the fabric is reduced. The fabric with low porosity can better prevent bacteria from passing through the fabric, but will leave the bacteria on the surface of one side of the fabric. At the same time, silver is a good antibacterial material, and the evenly distributed silver can kill the bacteria remaining on the surface of the fabric in all aspects, thereby improving the antibacterial effect of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0034] Figure 1 The present invention is a flow chart of a process for preparing an antibacterial and anti-mite home textile fabric used in an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The following is a detailed description of an antibacterial and anti-mite home textile fabric and its preparation process provided by the present invention in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0036] Embodiment 1:

[0037] A preparation process of antibacterial and anti-mite home textile fabric, such as Figure 1 As shown, the following steps are included:

[0038] S1: Preparation of zinc zeolite carboxylic acid composites

[0039] S1.1: 12 parts by volume of zinc nitrate hexahydrate methanol solution, 20 parts by volume of methylimidazole and 20 parts by volume of 1,3,5-benzenetricarboxylic acid methanol solution are mixed, wherein the zinc nitrate hexahydrate methanol solution is prepared by mixing zinc nitrate hexahydrate and methanol in a ratio of 0.6 g:40 mL, and the 1,3,5-benzenetricarboxylic acid methanol solution is prepared by mixing 1,3,5-benzenetricarboxylic acid and methanol in a volume ratio of 1:13, and react at 25°C and 500 r / min magnetic stirring for 1 h until the reaction system becomes turbid from clear and transparent;

[0040] S1.2: After the reaction is completed, the product is centrifuged at a speed of 1000 r / min for 10 minutes, the precipitate is separated and retained, the precipitate is washed three times with methanol, and then dried in a vacuum drying oven at 50° C. for 24 hours to obtain a zinc zeolite carboxylic acid composite material.

[0041] S2: Preparation and purification of nano-platinum

[0042] S2.1: Add 66 parts by mass of PVP to 90 parts by volume of a platinum ion solution containing 0.6 mM H 2 PtCl 6 It was prepared by mixing with anhydrous ethanol in a volume ratio of 1:8, stirring at 60r / min for 2min at 35°C, and then refluxed at 80°C for 3h to obtain nano-platinum;

[0043] S2.2: The nano-platinum was concentrated to one fifth of the original volume in a rotary evaporator at 120°C and 500 r / min to obtain a concentrated solution, and the concentrated solution was dialyzed for 48 hours, the molecular weight cutoff MWCO of the dialysis bag was 1000D, and the solution was concentrated again in a rotary evaporator at 120°C and 500 r / min to one fifth of the original volume to obtain purified nano-platinum;

[0044] S2.3: Add 1 part by mass of purified nano-platinum to 40 parts by mass of methanol, and then add 15 parts by mass of zinc zeolite carboxylic acid composite material, let stand at room temperature for 24 hours, then heat to 50°C, and centrifuge at 10,000 r / min for 10 minutes. Filter out the liquid, wash with methanol 3 times, and vacuum dry at room temperature for 24 hours to obtain a nano-platinum-zinc zeolite carboxylic acid composite material.

[0045] S3: Preparation of antibacterial and anti-mite home textile fabrics

[0046] S3.1: dissolving poly (L-lactic acid) in hexafluoroisopropanol and stirring for 12 hours to obtain a spinning solution, controlling the concentration of the poly (L-lactic acid) in the spinning solution to be 10wt%, 13wt% and 16wt%, adding 5% of the total volume of the nano-platinum-zinc zeolite carboxylic acid composite material to the spinning solution with a poly (L-lactic acid) concentration of 10wt%, and obtaining a composite platinum spinning solution;

[0047] S3.2: Adding 4% of the total mass of silver nanoparticles to a spinning solution having a poly-L-lactic acid concentration of 13 wt% to obtain a composite silver spinning solution;

[0048] S3.3: The composite platinum spinning solution, the composite silver spinning solution and the spinning solution with a concentration of 16 wt% of poly-L-lactic acid are respectively loaded into a syringe with a 21G spinning needle, and extruded outward at a speed of 0.8 mL / h to prepare a composite nanofiber yarn;

[0049] S3.4: transferring the composite nanofiber yarn to a vacuum drying oven and vacuum drying for 48 hours to remove the organic solvent to obtain the antibacterial yarn;

[0050] S3.5: Use antibacterial yarn as warp and cotton and linen fiber as weft, interweave the warp and weft perpendicularly to each other, with a warp density of 76 strands / cm and a weft density of 55 strands / cm, to weave an antibacterial fabric.

[0051] Embodiment 2:

[0052] A preparation process of antibacterial and anti-mite home textile fabric, such as Figure 1 As shown, the following steps are included:

[0053] S1: Preparation of zinc zeolite carboxylic acid composites

[0054] S1.1: 15 parts by volume of zinc nitrate hexahydrate methanol solution, 25 parts by volume of methylimidazole and 30 parts by volume of 1,3,5-benzenetricarboxylic acid methanol solution are mixed, wherein the zinc nitrate hexahydrate methanol solution is prepared by mixing zinc nitrate hexahydrate and methanol in a ratio of 0.6 g:50 mL, and the 1,3,5-benzenetricarboxylic acid methanol solution is prepared by mixing 1,3,5-benzenetricarboxylic acid and methanol in a volume ratio of 1:18, and react at 25°C and 500 r / min magnetic stirring for 1 h until the reaction system becomes turbid from clear and transparent;

[0055] S1.2: After the reaction is completed, the product is centrifuged at a speed of 1000 r / min for 10 minutes, the precipitate is separated and retained, the precipitate is washed three times with methanol, and then dried in a vacuum drying oven at 50° C. for 24 hours to obtain a zinc zeolite carboxylic acid composite material.

[0056] S2: Preparation and purification of nano-platinum

[0057] S2.1: Add 70 parts by mass of PVP to 100 parts by volume of a platinum ion solution containing 0.6 mM H 2 PtCl 6 It was prepared by mixing with anhydrous ethanol in a volume ratio of 1:9, stirring at 60r / min for 2min at 35°C, and then refluxed at 80°C for 3h to obtain nano-platinum;

[0058] S2.2: The nano-platinum was concentrated to one fifth of the original volume in a rotary evaporator at 120°C and 500 r / min to obtain a concentrated solution, and the concentrated solution was dialyzed for 48 hours, the molecular weight cutoff MWCO of the dialysis bag was 1000D, and the solution was concentrated again in a rotary evaporator at 120°C and 500 r / min to one fifth of the original volume to obtain purified nano-platinum;

[0059] S2.3: Add 2 parts by mass of purified nano-platinum to 40 parts by mass of methanol, and then add 18 parts by mass of zinc zeolite carboxylic acid composite material, let stand at room temperature for 24 hours, then heat to 50°C, and centrifuge at 10,000 r / min for 10 minutes. Filter out the liquid, wash with methanol 3 times, and vacuum dry at room temperature for 24 hours to obtain a nano-platinum-zinc zeolite carboxylic acid composite material.

[0060] S3: Preparation of antibacterial and anti-mite home textile fabrics

[0061] S3.1: dissolving poly (L-lactic acid) in hexafluoroisopropanol and stirring for 12 hours to obtain a spinning solution, controlling the concentration of the poly (L-lactic acid) in the spinning solution to be 12wt%, 15wt% and 18wt%, adding 5% of the total volume of the nano-platinum-zinc zeolite carboxylic acid composite material to the spinning solution having a poly (L-lactic acid) concentration of 12wt%, to obtain a composite platinum spinning solution;

[0062] S3.2: Adding 4% of the total mass of silver nanoparticles to a spinning solution having a poly-L-lactic acid concentration of 15 wt% to obtain a composite silver spinning solution;

[0063] S3.3: The composite platinum spinning solution, the composite silver spinning solution and the spinning solution with a concentration of 18 wt% of poly-L-lactic acid are respectively loaded into a syringe with a 21G spinning needle, and extruded outward at a speed of 0.8 mL / h to prepare a composite nanofiber yarn;

[0064] S3.4: transferring the composite nanofiber yarn to a vacuum drying oven and vacuum drying for 48 hours to remove the organic solvent to obtain the antibacterial yarn;

[0065] S3.5: Use antibacterial yarn as warp and cotton and linen fiber as weft, interweave the warp and weft perpendicularly to each other, with a warp density of 76 strands / cm and a weft density of 55 strands / cm, to weave an antibacterial fabric.

[0066] Embodiment 3:

[0067] A preparation process of antibacterial and anti-mite home textile fabric, such as Figure 1 As shown, the following steps are included:

[0068] S1: Preparation of zinc zeolite carboxylic acid composites

[0069] S1.1: 12 parts by volume of zinc nitrate hexahydrate methanol solution, 20 parts by volume of methylimidazole and 20 parts by volume of 1,3,5-benzenetricarboxylic acid methanol solution are mixed, wherein the zinc nitrate hexahydrate methanol solution is prepared by mixing zinc nitrate hexahydrate and methanol in a ratio of 0.6 g:40 mL, and the 1,3,5-benzenetricarboxylic acid methanol solution is prepared by mixing 1,3,5-benzenetricarboxylic acid and methanol in a volume ratio of 1:13, and react at 30°C and 550 r / min magnetic stirring for 1 h until the reaction system becomes turbid from clear and transparent;

[0070] S1.2: After the reaction is completed, the product is centrifuged at a speed of 1200 r / min for 15 min, the precipitate is separated and retained, the precipitate is washed three times with methanol, and then dried in a vacuum drying oven at 60° C. for 25 h to obtain a zinc zeolite carboxylic acid composite material.

[0071] S2: Preparation and purification of nano-platinum

[0072] S2.1: Add 66 parts by mass of PVP to 90 parts by volume of a platinum ion solution containing 0.6 mM H 2 PtCl 6 It was prepared by mixing with anhydrous ethanol in a volume ratio of 1:8, stirring at 80r / min for 2min at 40°C, and then refluxed at 90°C for 4h to obtain nano-platinum;

[0073] S2.2: The nano-platinum was concentrated to one fifth of the original volume in a rotary evaporator at 125°C and 600 r / min to obtain a concentrated solution, and the concentrated solution was dialyzed for 50 hours, the molecular weight cutoff MWCO of the dialysis bag was 1000D, and the solution was concentrated again in a rotary evaporator at 125°C and 600 r / min to one fifth of the original volume to obtain purified nano-platinum;

[0074] S2.3: Add 1 part by mass of purified nano-platinum to 40 parts by mass of methanol, and then add 15 parts by mass of zinc zeolite carboxylic acid composite material, let stand at room temperature for 24 hours, then heat to 60°C, and centrifuge at 11000 r / min for 15 minutes, filter out the liquid, wash with methanol 3 times, and vacuum dry at room temperature for 24 hours to obtain a nano-platinum-zinc zeolite carboxylic acid composite material.

[0075] S3: Preparation of antibacterial and anti-mite home textile fabrics

[0076] S3.1: dissolving poly (L-lactic acid) in hexafluoroisopropanol and stirring for 13 hours to obtain a spinning solution, controlling the concentration of poly (L-lactic acid) in the spinning solution to be 10wt%, 13wt% and 16wt%, adding 5% of the total volume of the system of nano-platinum-zinc zeolite carboxylic acid composite material to the spinning solution with a poly (L-lactic acid) concentration of 10wt%, and obtaining a composite platinum spinning solution;

[0077] S3.2: Adding 4% of the total mass of silver nanoparticles to a spinning solution having a poly-L-lactic acid concentration of 13 wt% to obtain a composite silver spinning solution;

[0078] S3.3: The composite platinum spinning solution, the composite silver spinning solution and the spinning solution with a concentration of 16 wt% of poly-L-lactic acid are respectively loaded into a syringe with a 21G spinning needle, and extruded outward at a speed of 0.8 mL / h to prepare a composite nanofiber yarn;

[0079] S3.4: transferring the composite nanofiber yarn to a vacuum drying oven and vacuum drying for 50 h to remove the organic solvent to obtain the antibacterial yarn;

[0080] S3.5: Use antibacterial yarn as warp and cotton and linen fiber as weft, interweave the warp and weft perpendicularly to each other, with a warp density of 79 strands / cm and a weft density of 58 strands / cm, to weave an antibacterial fabric.

[0081] Comparative Example 1:

[0082] Compared with Example 1, Comparative Example 1 is a commercially available conductive heating fabric.

[0083] Comparative Example 2:

[0084] Compared with Example 1, the difference of Comparative Example 2 is that no 1,3,5-benzenetricarboxylic acid methanol solution is added in step S1.1, specifically "S1.1: mix 12 parts by volume of zinc nitrate hexahydrate methanol solution and 20 parts by volume of methylimidazole, the zinc nitrate hexahydrate methanol solution is prepared by mixing zinc nitrate hexahydrate and methanol in a ratio of 0.6g:40mL, react at 25°C, 500r / min magnetic stirring for 1h, until the reaction system becomes turbid from clear and transparent", and the other steps remain unchanged, and the prepared antibacterial and anti-mite home textile fabric is recorded as Comparative Example 2.

[0085] Comparative Example 3:

[0086] Compared with Example 1, the difference of Comparative Example 3 is that no zinc nitrate hexahydrate methanol solution is added in step S1.1, specifically "S1.1: 20 parts by volume of methylimidazole and 20 parts by volume of 1,3,5-benzenetricarboxylic acid methanol solution are mixed, and the 1,3,5-benzenetricarboxylic acid methanol solution is obtained by mixing 1,3,5-benzenetricarboxylic acid and methanol in a volume ratio of 1:13, and reacting at 25°C and 500r / min magnetic stirring for 1h until the reaction system becomes turbid from clear and transparent", and the other steps remain unchanged, and the prepared antibacterial and anti-mite home textile fabric is recorded as Comparative Example 3.

[0087] Comparative Example 4:

[0088] Compared with Example 1, the difference of Comparative Example 4 is that step S3.2 is not performed, and a spinning solution with a concentration of 13wt% is used instead of the composite silver spinning solution, specifically "S3.1: poly-L-lactic acid is dissolved in hexafluoroisopropanol and stirred for 12h to obtain a spinning solution, the concentration of the poly-L-lactic acid in the spinning solution is controlled to be 10wt%, 13wt% and 16wt%, and 5% of the total volume of the system of the nano-platinum-zinc zeolite carboxylic acid composite material is added to the spinning solution with a concentration of 10wt% to obtain a composite platinum spinning solution;

[0089] S3.2: respectively load the composite platinum spinning solution, the spinning solution with a poly-L-lactic acid concentration of 13wt% and the spinning solution with a poly-L-lactic acid concentration of 16wt% into a syringe with a 21G spinning needle, and extrude them outward at a speed of 0.8mL / h to prepare a composite nanofiber yarn. The other steps remain unchanged, and the prepared antibacterial and anti-mite home textile fabric is recorded as Comparative Example 4.

[0090] The antibacterial properties of Examples 1-3 and Comparative Examples 1-4 were tested.

[0091] Table 1

[0092]

[0093] It can be seen from Table 1 that the antibacterial rates of Examples 1-3 against Staphylococcus aureus and Escherichia coli are higher than those of the comparative example, which shows that the antibacterial and anti-mite home textile fabric prepared by the present invention has a better antibacterial effect.

[0094] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A preparation process for antibacterial and anti-mite home textile fabric, characterized in that: The steps include: S1: Preparation of zinc zeolite carboxylic acid composites Mixing zinc nitrate hexahydrate methanol solution, methylimidazole and 1,3,5-benzenetricarboxylic acid methanol solution, reacting under magnetic stirring, centrifuging the product after the reaction, separating and retaining the precipitate, and vacuum drying to obtain a zinc zeolite carboxylic acid composite material; S2: Preparation and purification of nano-platinum PVP is added to a platinum ion solution, stirred and mixed, refluxed to obtain nano-platinum, the nano-platinum is subjected to rotary evaporation to obtain a concentrated solution, the concentrated solution is dialyzed, and rotary evaporated again to obtain purified nano-platinum, the purified nano-platinum is added to methanol, and then the zinc zeolite carboxylic acid composite material is added, heated, centrifuged, filtered to remove the liquid, and washed to obtain a nano-platinum-zinc zeolite carboxylic acid composite material; S3: Preparation of antibacterial and anti-mite home textile fabrics Poly (L-lactic acid) is dissolved in hexafluoroisopropanol to obtain a spinning solution, the concentration of the poly (L-lactic acid) in the spinning solution is controlled to be 10-12wt%, 13-15wt% and 16-18wt%, 5-10% of the total volume of a nano-platinum-zinc zeolite carboxylic acid composite material is added to the spinning solution with a poly (L-lactic acid) concentration of 10-12wt% to obtain a composite platinum spinning solution, 4-8% of the total mass of nano-silver particles are added to the spinning solution with a poly (L-lactic acid) concentration of 13-15wt% to obtain a composite silver spinning solution, the composite platinum spinning solution, the composite silver spinning solution and the spinning solution with a poly (L-lactic acid) concentration of 16-18wt% are spun to obtain a composite nanofiber yarn, the composite nanofiber yarn is vacuum dried to obtain an antibacterial yarn, the antibacterial yarn is used as a warp, cotton and linen fibers are used as a weft, and the warp and weft are perpendicularly interwoven to obtain an antibacterial fabric.

2. The preparation process of the antibacterial and anti-mite home textile fabric according to claim 1, characterized in that: Step S1: preparing a zinc zeolite carboxylic acid composite material, comprising the following steps: S1.1: 12-15 parts by volume of zinc nitrate hexahydrate methanol solution, 20-25 parts by volume of methylimidazole and 20-30 parts by volume of 1,3,5-benzenetricarboxylic acid methanol solution were mixed, and reacted at 25-30°C and 500-550 r / min magnetic stirring for 1-1.5 h until the reaction system changed from clear to turbid; S1.2: After the reaction is completed, the product is centrifuged at a speed of 1000-1200 r / min for 10-15 min, the precipitate is separated and retained, the precipitate is washed with methanol 3 times, and then dried in a vacuum drying oven at 50-60° C. for 24-25 h to obtain a zinc zeolite carboxylic acid composite material.

3. The preparation process of the antibacterial and anti-mite home textile fabric according to claim 2, characterized in that: Step S3 prepares antibacterial and anti-mite home textile fabrics, comprising the following steps: S3.1: dissolving poly (L-lactic acid) in hexafluoroisopropanol and stirring for 12-13 hours to obtain a spinning solution, controlling the concentration of the poly (L-lactic acid) in the spinning solution to be 10-12wt%, 13-15wt% and 16-18wt%, adding 5-10% of the total volume of the system of nano-platinum-zinc zeolite carboxylic acid composite material to the spinning solution with a poly (L-lactic acid) concentration of 10-12wt%, to obtain a composite platinum spinning solution; S3.2: Adding 4-8% of the total mass of silver nanoparticles to a spinning solution having a poly-L-lactic acid concentration of 13-15 wt% to obtain a composite silver spinning solution; S3.3: The composite platinum spinning solution, the composite silver spinning solution and the spinning solution with a concentration of 16-18 wt% of poly-L-lactic acid are respectively loaded into a syringe with a 21G spinning needle, and extruded outward at a speed of 0.8 mL / h to prepare a composite nanofiber yarn; S3.4: transferring the composite nanofiber yarn to a vacuum drying oven and vacuum drying for 48-50 hours to remove the organic solvent to obtain the antibacterial yarn; S3.5: Use antibacterial yarn as warp and cotton and linen fiber as weft, interweave the warp and weft perpendicularly to each other, with a warp density of 76-79 strands / cm and a weft density of 55-58 strands / cm, to weave an antibacterial fabric.

4. The preparation process of the antibacterial and anti-mite home textile fabric according to claim 2, characterized in that: The zinc nitrate hexahydrate methanol solution is prepared by mixing zinc nitrate hexahydrate and methanol in a ratio of 0.6 g: (40-50) mL.

5. The preparation process of the antibacterial and anti-mite home textile fabric according to claim 2, characterized in that: The 1,3,5-benzenetricarboxylic acid methanol solution is obtained by mixing 1,3,5-benzenetricarboxylic acid and methanol in a volume ratio of 1:(13-18).

6. The preparation process of the antibacterial and anti-mite home textile fabric according to claim 1, characterized in that: The platinum ion solution was prepared by mixing 0.6 mM H2PtCl6 and anhydrous ethanol in a volume ratio of 1:(8-9).

7. The preparation process of the antibacterial and anti-mite home textile fabric according to claim 3, characterized in that: The molecular weight cut-off (MWCO) of the dialysis bag is 1000D.

8. An antibacterial and anti-mite home textile fabric, which is prepared by the preparation process of the antibacterial and anti-mite home textile fabric according to any one of claims 1 to 7.

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