Polyamide fiber containing active ingredients of fructus lycii, herba dendrobii and poria cocos and preparation method of polyamide fiber

Abstract

The invention relates to the technical field of functional fibers, and particularly discloses a polyamide fiber containing active ingredients of fructus lycii, herba dendrobii and poria cocos and a preparation method of the polyamide fiber containing the active ingredients of the fructus lycii, the herba dendrobii and the poria cocos. Comprising the following raw materials in parts by weight: 100-300 parts of chinlon chips, 15-30 parts of a Chinese wolfberry extract, 10-20 parts of a dendrobium extract, 8-20 parts of a poria cocos extract and 10-20 parts of a modifier. And the modifier is obtained by acidifying bentonite with tartaric acid and then modifying with 1-butyl-3-methylimidazolium acetate, so that the modifier can stably adsorb plant active components, promote the plant active components to be kept on the fiber surface for a long time, and still keep the bacteriostatic activity after high-temperature treatment, so that the antibacterial property of the fiber is improved, and the antibacterial property of the fiber is improved. The antibacterial performance of the polyamide fiber has durability and stability, and the market prospect is wide.

Description

Technical Field

[0001] The present application relates to the technical field of functionalized fibers, and more specifically, to a nylon fiber containing active ingredients of wolfberry, dendrobium and poria, and a preparation method thereof. Background Art

[0002] Nylon fiber is a synthetic fiber made of synthetic polymer materials, which is widely used in textiles, clothing, industrial fabrics, carpets and other fields. Nylon fiber has excellent mechanical properties, wear resistance, high temperature resistance, tensile resistance and other characteristics, so it is widely welcomed in the market.

[0003] Although nylon fiber has good strength and durability, it lacks natural antibacterial groups in its molecular structure, and its antibacterial properties are often inferior to those of natural fibers or specially treated synthetic fibers. As the functional requirements for textiles continue to increase, especially in the fields of medical, sports, and children's products, the requirements for the antibacterial properties of textiles are increasing. For example, in the medical field, antibacterial textiles can reduce the risk of infection; in sportswear, the antibacterial function helps inhibit the growth of bacteria caused by sweat accumulation; and in daily life, antibacterial fibers can also effectively improve the freshness of clothing and reduce odor.

[0004] At present, CN118704110A provides a nylon large bio-fiber containing antioxidant active ingredients and a preparation method thereof. The preparation method of the nylon large bio-fiber containing antioxidant active ingredients consists of the following steps: preparing buckwheat leaf extract, preparing yucca extract, preparing a porous base carrier, amination treatment, modification treatment, loading, preparing functional masterbatch, and spinning; the preparation method of the nylon large bio-fiber containing antioxidant active ingredients of the invention can improve the binding performance of the active ingredients of plant extracts with antioxidant functions and nylon fibers, and effectively avoid the problem of reduced stability and easy inactivation of the active ingredients of plant extracts during acid dyeing; and effectively avoid the problem of the active ingredients of plant extracts affecting the dyeing effect and causing uneven dyeing; but it cannot guarantee that the nylon fiber still maintains good antibacterial properties after high-temperature treatment.

[0005] Based on the above statements, the present application proposes a novel nylon fiber containing active ingredients of wolfberry, dendrobium and poria. Summary of the invention

[0006] In order to improve the defect that the antibacterial performance of existing nylon fibers is damaged after high-temperature treatment, the present application provides a nylon fiber containing active ingredients of wolfberry, dendrobium and poria and a preparation method thereof.

[0007] In the first aspect, the present application provides a nylon fiber containing the active ingredients of wolfberry, dendrobium and tuckahoe, adopting the following technical scheme:

[0008] A nylon fiber containing active ingredients of wolfberry, dendrobium and poria, comprising the following raw materials in parts by weight: 100-300 parts of nylon slices, 15-30 parts of wolfberry extract, 10-20 parts of dendrobium extract, 8-20 parts of poria extract and 10-20 parts of a modifier.

[0009] Preferably, the method for preparing the wolfberry extract comprises the following steps:

[0010] S11, after the wolfberry powder, low-temperature hydrolase and water are uniformly mixed in a mass ratio of 10:1-3:50-100, a first enzymatic hydrolysis is performed at 20-30° C. and a pH value of 3.5-6.5 for 10-20 hours to obtain a first enzymatic hydrolysis product;

[0011] S12, mixing the first enzymatic hydrolysis product and the mesophilic hydrolase in a mass ratio of 100:1-5, performing a second enzymatic hydrolysis at 31-50° C. and a pH value of 3.5-6.5 for 10-20 h, and centrifuging to obtain a second enzymatic hydrolyzate;

[0012] S13, concentrating the second enzymatic hydrolyzate under reduced pressure, and drying to obtain wolfberry extract.

[0013] Preferably, the low-temperature hydrolase is a low-temperature xylanase; and the medium-temperature hydrolase is an α-amylase and / or a β-amylase.

[0014] Preferably, the method for preparing the Dendrobium officinale extract comprises the following steps:

[0015] The dendrobium powder and ethanol are mixed evenly in a mass ratio of 1:40-60, and then extracted at room temperature for 10-24 hours, and the mixture is repeated twice. The extracts are combined, concentrated under reduced pressure, and dried to obtain the dendrobium extract.

[0016] Preferably, the method for preparing the Poria cocos extract comprises the following steps:

[0017] S21, mixing Poria powder and water in a mass ratio of 1:40-60, extracting at 120-140° C. for 5-10 min, filtering to obtain a filtrate;

[0018] S22, adding a composite enzyme with a mass of 0.01-0.1 of Poria powder to the filtrate, and performing enzymolysis reaction at 50-55° C. and pH 4-6 for 2-6 hours; inoculating 5wt% of rhamnosus Bacillus on the enzymolysis reaction liquid, culturing at 32-37° C. for 36-48 hours, filtering, concentrating under reduced pressure, and drying to obtain Poria extract.

[0019] Preferably, the composite enzyme is obtained by mixing cellulase and ligninase in a mass ratio of 4:1-8.

[0020] Preferably, the preparation method of the modifier comprises the following steps:

[0021] S31, adding bentonite to the tartaric acid solution, heating under reflux at 120-130° C. for 6-8 hours, filtering, washing, and drying to obtain acidified bentonite;

[0022] S32. Stir the acidified bentonite, 1-butyl-3-methylimidazolium acetate and N,N-dimethylformamide at room temperature for 12-48 hours, centrifuge, collect the solid, and dry it in vacuo to obtain a modifier.

[0023] Preferably, the mass ratio of the bentonite to the tartaric acid solution is 1-5:100; and the concentration of the tartaric acid solution is 10-15wt%.

[0024] Preferably, the mass ratio of the acidified bentonite, 1-butyl-3-methylimidazolium acetate and N,N-dimethylformamide is 1-5:0.1-1:50-100.

[0025] In the second aspect, the present application provides a method for preparing nylon fiber containing active ingredients of wolfberry, dendrobium and tuckahoe, using the following technical scheme:

[0026] A method for preparing nylon fiber containing active ingredients of wolfberry, dendrobium and tuckahoe, comprising the following steps:

[0027] Adding wolfberry extract, dendrobium extract, Poria extract and a modifier into water, stirring evenly, and vacuum drying to obtain a mixture;

[0028] The nylon chips are uniformly mixed with the mixture, heated to 240-260°C, melt-extruded, cooled, pelletized, and dried to obtain nylon masterbatch;

[0029] The nylon masterbatch is extruded and melted at 250-270°C, spun, and the spinning speed is controlled to be 1600-1800m / min, and then drawn, oiled, and wound to obtain nylon fibers containing active ingredients of wolfberry, dendrobium, and poria.

[0030] In summary, this application has the following beneficial effects:

[0031] 1. The nylon fiber containing wolfberry, dendrobium and poria active ingredients of the present application includes nylon slices, wolfberry extract, dendrobium extract, poria extract and modifier, and strictly controls the weight of each component to promote the interaction between the components, which can effectively improve the stability and durability of the antibacterial performance of the nylon fiber, and can still exhibit excellent antibacterial performance after high temperature treatment.

[0032] 2. The wolfberry extract of the present application is first subjected to low-temperature enzymolysis by a low-temperature hydrolase, and then subjected to medium- and high-temperature enzymolysis by a medium-temperature hydrolase, which can effectively avoid the degradation of heat-sensitive components in the wolfberry extract, and through appropriate enzymolysis process, the active ingredients can be better adsorbed on the surface of nylon fibers, increasing the affinity between the fibers and the active ingredients, so that the surface of the nylon fibers can not only provide a continuous antibacterial effect, but also effectively prolong the durability of the antibacterial function.

[0033] 3. The Poria extract of the present application is extracted by multiple methods including water extraction, composite enzymatic hydrolysis and rhamnosus Bacillus fermentation, which work synergistically to fully release and activate various active ingredients in Poria, produce a stronger antibacterial effect, and enhance the adhesion of Poria extract on the surface of nylon fiber, so that the Poria extract can continuously release active ingredients, ensure the slow release of antibacterial ingredients, continuously act on the surface of nylon fiber, and prolong the duration of antibacterial effect.

[0034] 4. This application uses tartaric acid to acidify bentonite, and then modifies it with 1-butyl-3-methylimidazolium acetate to obtain a modifier; after the bentonite is treated with tartaric acid, more negative charges will be added to its surface, so that it has a strong adsorption capacity for 1-butyl-3-methylimidazolium acetate. The modifier has excellent adsorption properties, and the active ingredients of wolfberry, dendrobium, and poria are successfully loaded into nylon fibers, so that the active ingredients can remain on the fiber surface for a long time, and at high temperatures, the active ingredients still maintain good antibacterial properties, so that the nylon fiber has excellent high temperature resistance and antibacterial properties.

[0035] 5. The preparation method of nylon fiber containing active ingredients of wolfberry, dendrobium and poria cocos of the present application has simple steps, low cost, and is suitable for industrial production. The comprehensive performance of the obtained nylon fiber is more excellent and can meet higher market demands. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with embodiments.

[0037] Embodiment 1-3 provides a nylon fiber containing active ingredients of wolfberry, dendrobium and tuckahoe and a preparation method thereof.

[0038] Example 1

[0039] A nylon fiber containing wolfberry, dendrobium and poria active ingredients, comprising the following raw materials in parts by weight: 100 parts of nylon slices, 15 parts of wolfberry extract, 20 parts of dendrobium extract, 8 parts of poria extract, and 10 parts of a modifier;

[0040] The preparation method of wolfberry extract comprises the following steps:

[0041] S11, after the wolfberry powder, low-temperature hydrolase and water are mixed uniformly in a mass ratio of 10:1:50, the first enzymatic hydrolysis is carried out at 20° C. and pH 3.5 for 20 hours to obtain a first enzymatic hydrolysis product;

[0042] S12, mixing the first enzymatic hydrolysis product and the mesophilic hydrolase at a mass ratio of 100:1, performing a second enzymatic hydrolysis at 50° C. and pH 6.5 for 10 h, and centrifuging to obtain a second enzymatic hydrolyzate;

[0043] S13, concentrating the second enzymatic hydrolyzate under reduced pressure, and drying to obtain a wolfberry extract;

[0044] Among them, the low-temperature hydrolase is low-temperature xylanase; the medium-temperature hydrolase is α-amylase;

[0045] The preparation method of the dendrobium extract comprises the following steps:

[0046] The dendrobium powder and ethanol were mixed evenly at a mass ratio of 1:40, and then extracted at room temperature for 10 hours, and the extraction was repeated twice, and the extracts were combined, concentrated under reduced pressure, and dried to obtain a dendrobium extract;

[0047] The preparation method of Poria cocos extract comprises the following steps:

[0048] S21, mixing Poria powder and water in a mass ratio of 1:40, extracting at 120° C. for 5 min, filtering, and obtaining a filtrate;

[0049] S22, adding a composite enzyme of 0.01 times the mass of Poria powder to the filtrate, and performing enzymolysis reaction at 50°C and pH 4 for 2 hours; inoculating 5wt% of rhamnosus Bacillus on the enzymolysis reaction solution, culturing at 32°C for 36 hours, filtering, concentrating under reduced pressure, and drying to obtain a Poria extract;

[0050] The composite enzyme is obtained by mixing cellulase and ligninase in a mass ratio of 4:1;

[0051] The preparation method of the modifier comprises the following steps:

[0052] S31, adding bentonite in an amount of 1 wt% of the tartaric acid solution to a 10 wt% tartaric acid solution, heating under reflux at 120° C. for 8 h, filtering, washing, and drying to obtain acidified bentonite;

[0053] S32. Mix acidified bentonite, 1-butyl-3-methylimidazolium acetate, and N,N-dimethylformamide in a mass ratio of 1:0.1:50, stir at room temperature for 12 hours, centrifuge, collect the solid, and vacuum dry to obtain a modifier.

[0054] A method for preparing nylon fiber containing active ingredients of wolfberry, dendrobium and tuckahoe, comprising the following steps:

[0055] Adding wolfberry extract, dendrobium extract, Poria extract and modifier into water 20 times the total mass of wolfberry extract, dendrobium extract, Poria extract and modifier, stirring at a speed of 1000 r / min for 2 hours, and vacuum drying at 70° C. for 4 hours to obtain a mixture;

[0056] The nylon chips are uniformly mixed with the mixture, heated to 240°C, melt-extruded, cooled, pelletized, and dried to obtain nylon masterbatch;

[0057] The nylon masterbatch is extruded and melted at 250°C, spun, and the spinning speed is controlled to be 1600m / min. Then, the nylon fiber containing the active ingredients of wolfberry, dendrobium and poria is obtained through drawing, oiling and winding.

[0058] Example 2

[0059] A nylon fiber containing wolfberry, dendrobium and poria active ingredients, comprising the following raw materials in parts by weight: 200 parts of nylon slices, 23 parts of wolfberry extract, 15 parts of dendrobium extract, 15 parts of poria extract, and 15 parts of a modifier;

[0060] The preparation method of wolfberry extract comprises the following steps:

[0061] S11, after the wolfberry powder, low-temperature hydrolase and water are mixed uniformly in a mass ratio of 10:2:75, the first enzymatic hydrolysis is carried out at 25° C. and pH 5 for 15 hours to obtain a first enzymatic hydrolysis product;

[0062] S12, mixing the first enzymatic hydrolysis product and the mesophilic hydrolase in a mass ratio of 100:2, performing a second enzymatic hydrolysis at 40° C. and pH 5.5 for 15 h, and centrifuging to obtain a second enzymatic hydrolyzate;

[0063] S13, concentrating the second enzymatic hydrolyzate under reduced pressure, and drying to obtain a wolfberry extract;

[0064] Wherein, the low-temperature hydrolase is low-temperature xylanase; the medium-temperature hydrolase is β-amylase;

[0065] The preparation method of the dendrobium extract comprises the following steps:

[0066] The dendrobium powder and ethanol were mixed evenly at a mass ratio of 1:50, and then extracted at room temperature for 18 hours, and the extraction was repeated twice, and the extracts were combined, concentrated under reduced pressure, and dried to obtain a dendrobium extract;

[0067] The preparation method of Poria cocos extract comprises the following steps:

[0068] S21, mixing Poria powder and water in a mass ratio of 1:50, extracting at 130° C. for 7 min, filtering, and obtaining a filtrate;

[0069] S22, adding a composite enzyme of 0.05 times the mass of Poria powder to the filtrate, and performing an enzymatic hydrolysis reaction at 53° C. and pH 5 for 4 hours; inoculating 5 wt% of rhamnosus Bacillus on the enzymatic hydrolysis reaction solution, culturing at 32-37° C. for 42 hours, filtering, concentrating under reduced pressure, and drying to obtain a Poria extract;

[0070] The composite enzyme is obtained by mixing cellulase and ligninase in a mass ratio of 4:5;

[0071] The preparation method of the modifier comprises the following steps:

[0072] S31, adding bentonite in an amount of 3 wt% of the tartaric acid solution to a 13 wt% tartaric acid solution, heating under reflux at 125° C. for 7 h, filtering, washing, and drying to obtain acidified bentonite;

[0073] S32. Acidified bentonite, 1-butyl-3-methylimidazolium acetate, and N,N-dimethylformamide are stirred at room temperature in a mass ratio of 2:0.5:75 for 30 hours, centrifuged, and the solid is collected and vacuum dried to obtain a modifier.

[0074] A method for preparing nylon fiber containing active ingredients of wolfberry, dendrobium and tuckahoe, comprising the following steps:

[0075] Adding wolfberry extract, dendrobium extract, Poria extract and modifier into water 20 times the total mass of wolfberry extract, dendrobium extract, Poria extract and modifier, stirring at a speed of 1500 r / min for 1.5 hours, and vacuum drying at 75° C. for 3 hours to obtain a mixture;

[0076] The nylon chips are uniformly mixed with the mixture, heated to 250°C, melt-extruded, cooled, pelletized, and dried to obtain nylon masterbatch;

[0077] The nylon masterbatch is extruded and melted at 260°C, spun, and the spinning speed is controlled to be 1700m / min, and then drawn, oiled, and wound to obtain nylon fibers containing active ingredients of wolfberry, dendrobium, and poria.

[0078] Example 3

[0079] A nylon fiber containing wolfberry, dendrobium and poria active ingredients, comprising the following raw materials in parts by weight: 300 parts of nylon slices, 30 parts of wolfberry extract, 10 parts of dendrobium extract, 8-20 parts of poria extract, and 20 parts of a modifier;

[0080] The preparation method of wolfberry extract comprises the following steps:

[0081] S11, after evenly mixing wolfberry powder, low-temperature hydrolase and water in a mass ratio of 10:3:100, perform a first enzymatic hydrolysis at 30° C. and pH 6.5 for 10 h to obtain a first enzymatic hydrolysis product;

[0082] S12, mixing the first enzymatic hydrolysis product and the mesophilic hydrolase in a mass ratio of 100:5, performing a second enzymatic hydrolysis at 31° C. and a pH value of 3.5 for 20 h, and centrifuging to obtain a second enzymatic hydrolyzate;

[0083] S13, concentrating the second enzymatic hydrolyzate under reduced pressure, and drying to obtain a wolfberry extract;

[0084] Wherein, the low-temperature hydrolase is a low-temperature xylanase; the medium-temperature hydrolase is obtained by mixing α-amylase and β-amylase in a mass ratio of 1:1;

[0085] The preparation method of the dendrobium extract comprises the following steps:

[0086] The dendrobium powder and ethanol were mixed evenly at a mass ratio of 1:60, and then extracted at room temperature for 24 hours, and the extraction was repeated twice, and the extracts were combined, concentrated under reduced pressure, and dried to obtain a dendrobium extract;

[0087] The preparation method of Poria cocos extract comprises the following steps:

[0088] S21, mixing Poria powder and water in a mass ratio of 1:60, extracting at 140° C. for 10 min, filtering, and obtaining a filtrate;

[0089] S22, adding a composite enzyme of 0.1 times the mass of Poria powder to the filtrate, and performing an enzymatic hydrolysis reaction at 55°C and pH 6 for 6 hours; inoculating 5wt% of rhamnosus Bacillus on the enzymatic hydrolysis reaction solution, culturing at 37°C for 48 hours, filtering, concentrating under reduced pressure, and drying to obtain a Poria extract;

[0090] The composite enzyme is obtained by mixing cellulase and ligninase in a mass ratio of 1:2;

[0091] The preparation method of the modifier comprises the following steps:

[0092] S31, adding bentonite in an amount of 5 wt% of the tartaric acid solution to a 15 wt% tartaric acid solution, heating under reflux at 130° C. for 6 h, filtering, washing, and drying to obtain acidified bentonite;

[0093] S32. Mix acidified bentonite, 1-butyl-3-methylimidazolium acetate, and N,N-dimethylformamide in a mass ratio of 5:1:100, stir at room temperature for 48 hours, centrifuge, collect the solid, and vacuum dry to obtain a modifier.

[0094] A method for preparing nylon fiber containing active ingredients of wolfberry, dendrobium and tuckahoe, comprising the following steps:

[0095] Adding wolfberry extract, dendrobium extract, Poria extract and modifier into water 20 times the total mass of wolfberry extract, dendrobium extract, Poria extract and modifier, stirring at a speed of 2000 r / min for 0.5 h, and vacuum drying at 80° C. for 4 h to obtain a mixture;

[0096] The nylon chips are uniformly mixed with the mixture, heated to 260°C, melt-extruded, cooled, pelletized, and dried to obtain nylon masterbatch;

[0097] The nylon masterbatch is extruded and melted at 270°C, spun, and the spinning speed is controlled to be 1800m / min. Then, the nylon fiber containing the active ingredients of wolfberry, dendrobium and poria is obtained through drawing, oiling and winding.

[0098] In order to verify the comprehensive performance of the nylon fibers obtained in Examples 1-3 of the present application, the applicant set up Comparative Examples 1-7, which are as follows:

[0099] Comparative Example 1

[0100] Comparative Example 1 is different from Example 1 only in that the preparation method of wolfberry extract is different, as follows:

[0101] A nylon fiber containing wolfberry, dendrobium and poria active ingredients, comprising the following raw materials in parts by weight: 100 parts of nylon slices, 15 parts of wolfberry extract, 20 parts of dendrobium extract, 8 parts of poria extract, and 10 parts of a modifier;

[0102] The preparation method of wolfberry extract comprises the following steps:

[0103] S11, after the wolfberry powder, low-temperature hydrolase and water are mixed uniformly at a mass ratio of 10:1:50, enzymatic hydrolysis is carried out at 20° C. and pH 3.5 for 30 hours, and centrifuged to obtain an enzymatic hydrolyzate;

[0104] S12, concentrating the enzymatic hydrolyzate under reduced pressure, and drying to obtain a wolfberry extract;

[0105] Wherein, the low-temperature hydrolase is a low-temperature xylanase;

[0106] The preparation method of the dendrobium extract comprises the following steps:

[0107] The dendrobium powder and ethanol were mixed evenly at a mass ratio of 1:40, and then extracted at room temperature for 10 hours, and the extraction was repeated twice, and the extracts were combined, concentrated under reduced pressure, and dried to obtain a dendrobium extract;

[0108] The preparation method of Poria cocos extract comprises the following steps:

[0109] S21, mixing Poria powder and water in a mass ratio of 1:40, extracting at 120° C. for 5 min, filtering, and obtaining a filtrate;

[0110] S22, adding a composite enzyme of 0.01 times the mass of Poria powder to the filtrate, and performing enzymolysis reaction at 50°C and pH 4 for 2 hours; inoculating 5wt% of rhamnosus Bacillus on the enzymolysis reaction solution, culturing at 32°C for 36 hours, filtering, concentrating under reduced pressure, and drying to obtain a Poria extract;

[0111] The composite enzyme is obtained by mixing cellulase and ligninase in a mass ratio of 4:1;

[0112] The preparation method of the modifier comprises the following steps:

[0113] S31, adding bentonite in an amount of 1 wt% of the tartaric acid solution to a 10 wt% tartaric acid solution, heating under reflux at 120° C. for 8 h, filtering, washing, and drying to obtain acidified bentonite;

[0114] S32. Mix acidified bentonite, 1-butyl-3-methylimidazolium acetate, and N,N-dimethylformamide in a mass ratio of 1:0.1:50, stir at room temperature for 12 hours, centrifuge, collect the solid, and vacuum dry to obtain a modifier.

[0115] A method for preparing nylon fiber containing active ingredients of wolfberry, dendrobium and tuckahoe, comprising the following steps:

[0116] Adding wolfberry extract, dendrobium extract, Poria extract and modifier into water 20 times the total mass of wolfberry extract, dendrobium extract, Poria extract and modifier, stirring at a speed of 1000 r / min for 2 hours, and vacuum drying at 70° C. for 4 hours to obtain a mixture;

[0117] The nylon chips are uniformly mixed with the mixture, heated to 240°C, melt-extruded, cooled, pelletized, and dried to obtain nylon masterbatch;

[0118] The nylon masterbatch is extruded and melted at 250°C, spun, and the spinning speed is controlled to be 1600m / min. Then, the nylon fiber containing the active ingredients of wolfberry, dendrobium and poria is obtained through drawing, oiling and winding.

[0119] Comparative Example 2

[0120] Comparative Example 2 is different from Example 1 only in that the preparation method of wolfberry extract is different, as follows:

[0121] A nylon fiber containing wolfberry, dendrobium and poria active ingredients, comprising the following raw materials in parts by weight: 100 parts of nylon slices, 15 parts of wolfberry extract, 20 parts of dendrobium extract, 8 parts of poria extract, and 10 parts of a modifier;

[0122] The preparation method of wolfberry extract comprises the following steps:

[0123] S11, after the wolfberry powder, the medium-temperature hydrolase and water are mixed uniformly at a mass ratio of 10:1:50, enzymatic hydrolysis is performed at 50° C. and pH 6.5 for 30 hours, and centrifuged to obtain an enzymatic hydrolyzate;

[0124] S12, concentrating the enzymatic hydrolyzate under reduced pressure, and drying to obtain a wolfberry extract;

[0125] Among them, the mesophilic hydrolase is α-amylase;

[0126] The preparation method of the dendrobium extract comprises the following steps:

[0127] The dendrobium powder and ethanol were mixed evenly at a mass ratio of 1:40, and then extracted at room temperature for 10 hours, and the extraction was repeated twice, and the extracts were combined, concentrated under reduced pressure, and dried to obtain a dendrobium extract;

[0128] The preparation method of Poria cocos extract comprises the following steps:

[0129] S21, mixing Poria powder and water in a mass ratio of 1:40, extracting at 120° C. for 5 min, filtering, and obtaining a filtrate;

[0130] S22, adding a composite enzyme of 0.01 times the mass of Poria powder to the filtrate, and performing enzymolysis reaction at 50°C and pH 4 for 2 hours; inoculating 5wt% of rhamnosus Bacillus on the enzymolysis reaction solution, culturing at 32°C for 36 hours, filtering, concentrating under reduced pressure, and drying to obtain a Poria extract;

[0131] The composite enzyme is obtained by mixing cellulase and ligninase in a mass ratio of 4:1;

[0132] The preparation method of the modifier comprises the following steps:

[0133] S31, adding bentonite in an amount of 1 wt% of the tartaric acid solution to a 10 wt% tartaric acid solution, heating under reflux at 120° C. for 8 h, filtering, washing, and drying to obtain acidified bentonite;

[0134] S32. Mix acidified bentonite, 1-butyl-3-methylimidazolium acetate, and N,N-dimethylformamide in a mass ratio of 1:0.1:50, stir at room temperature for 12 hours, centrifuge, collect the solid, and vacuum dry to obtain a modifier.

[0135] A method for preparing nylon fiber containing active ingredients of wolfberry, dendrobium and tuckahoe, comprising the following steps:

[0136] Adding wolfberry extract, dendrobium extract, Poria extract and modifier into water 20 times the total mass of wolfberry extract, dendrobium extract, Poria extract and modifier, stirring at a speed of 1000 r / min for 2 hours, and vacuum drying at 70° C. for 4 hours to obtain a mixture;

[0137] The nylon chips are uniformly mixed with the mixture, heated to 240°C, melt-extruded, cooled, pelletized, and dried to obtain nylon masterbatch;

[0138] The nylon masterbatch is extruded and melted at 250°C, spun, and the spinning speed is controlled to be 1600m / min. Then, the nylon fiber containing the active ingredients of wolfberry, dendrobium and poria is obtained through drawing, oiling and winding.

[0139] Comparative Example 3

[0140] Comparative Example 3 is the same as Example 1, except that the preparation method of the Poria cocos extract is different, as follows:

[0141] A nylon fiber containing wolfberry, dendrobium and poria active ingredients, comprising the following raw materials in parts by weight: 100 parts of nylon slices, 15 parts of wolfberry extract, 20 parts of dendrobium extract, 8 parts of poria extract, and 10 parts of a modifier;

[0142] The preparation method of wolfberry extract comprises the following steps:

[0143] S11, after the wolfberry powder, low-temperature hydrolase and water are mixed uniformly in a mass ratio of 10:1:50, the first enzymatic hydrolysis is carried out at 20° C. and pH 3.5 for 20 hours to obtain a first enzymatic hydrolysis product;

[0144] S12, mixing the first enzymatic hydrolysis product and the mesophilic hydrolase at a mass ratio of 100:1, performing a second enzymatic hydrolysis at 50° C. and pH 6.5 for 10 h, and centrifuging to obtain a second enzymatic hydrolyzate;

[0145] S13, concentrating the second enzymatic hydrolyzate under reduced pressure, and drying to obtain a wolfberry extract;

[0146] Among them, the low-temperature hydrolase is low-temperature xylanase; the medium-temperature hydrolase is α-amylase;

[0147] The preparation method of the dendrobium extract comprises the following steps:

[0148] The dendrobium powder and ethanol were mixed evenly at a mass ratio of 1:40, and then extracted at room temperature for 10 hours, and the extraction was repeated twice, and the extracts were combined, concentrated under reduced pressure, and dried to obtain a dendrobium extract;

[0149] The preparation method of Poria cocos extract comprises the following steps:

[0150] S21, mixing Poria powder and water in a mass ratio of 1:40, extracting at 120° C. for 5 min, filtering, and obtaining a filtrate;

[0151] S22, adding a composite enzyme in an amount 0.01 times the mass of the Poria powder to the filtrate, carrying out an enzymatic hydrolysis reaction at 50° C. and pH 4 for 2 h, filtering, concentrating under reduced pressure, and drying to obtain a Poria extract;

[0152] The composite enzyme is obtained by mixing cellulase and ligninase in a mass ratio of 4:1;

[0153] The preparation method of the modifier comprises the following steps:

[0154] S31, adding bentonite in an amount of 1 wt% of the tartaric acid solution to a 10 wt% tartaric acid solution, heating under reflux at 120° C. for 8 h, filtering, washing, and drying to obtain acidified bentonite;

[0155] S32. Mix acidified bentonite, 1-butyl-3-methylimidazolium acetate, and N,N-dimethylformamide in a mass ratio of 1:0.1:50, stir at room temperature for 12 hours, centrifuge, collect the solid, and vacuum dry to obtain a modifier.

[0156] A method for preparing nylon fiber containing active ingredients of wolfberry, dendrobium and tuckahoe, comprising the following steps:

[0157] Adding wolfberry extract, dendrobium extract, Poria extract and modifier into water 20 times the total mass of wolfberry extract, dendrobium extract, Poria extract and modifier, stirring at a speed of 1000 r / min for 2 hours, and vacuum drying at 70° C. for 4 hours to obtain a mixture;

[0158] The nylon chips are uniformly mixed with the mixture, heated to 240°C, melt-extruded, cooled, pelletized, and dried to obtain nylon masterbatch;

[0159] The nylon masterbatch is extruded and melted at 250°C, spun, and the spinning speed is controlled to be 1600m / min. Then, the nylon fiber containing the active ingredients of wolfberry, dendrobium and poria is obtained through drawing, oiling and winding.

[0160] Comparative Example 4

[0161] Comparative Example 4 is the same as Example 1, except that the preparation method of the Poria cocos extract is different, as follows:

[0162] A nylon fiber containing wolfberry, dendrobium and poria active ingredients, comprising the following raw materials in parts by weight: 100 parts of nylon slices, 15 parts of wolfberry extract, 20 parts of dendrobium extract, 8 parts of poria extract, and 10 parts of a modifier;

[0163] The preparation method of wolfberry extract comprises the following steps:

[0164] S11, after the wolfberry powder, low-temperature hydrolase and water are mixed uniformly in a mass ratio of 10:1:50, the first enzymatic hydrolysis is carried out at 20° C. and pH 3.5 for 20 hours to obtain a first enzymatic hydrolysis product;

[0165] S12, mixing the first enzymatic hydrolysis product and the mesophilic hydrolase at a mass ratio of 100:1, performing a second enzymatic hydrolysis at 50° C. and pH 6.5 for 10 h, and centrifuging to obtain a second enzymatic hydrolyzate;

[0166] S13, concentrating the second enzymatic hydrolyzate under reduced pressure, and drying to obtain a wolfberry extract;

[0167] Among them, the low-temperature hydrolase is low-temperature xylanase; the medium-temperature hydrolase is α-amylase;

[0168] The preparation method of the dendrobium extract comprises the following steps:

[0169] The dendrobium powder and ethanol were mixed evenly at a mass ratio of 1:40, and then extracted at room temperature for 10 hours, and the extraction was repeated twice, and the extracts were combined, concentrated under reduced pressure, and dried to obtain a dendrobium extract;

[0170] The preparation method of Poria cocos extract comprises the following steps:

[0171] S21, mixing Poria powder and water in a mass ratio of 1:40, extracting at 120° C. for 5 min, filtering, and obtaining a filtrate;

[0172] S22, adding 5 wt% of the above-inoculated Bacillus rhamnosus to the filtrate, culturing at 32° C. for 36 h, filtering, concentrating under reduced pressure, and drying to obtain a Poria cocos extract;

[0173] The preparation method of the modifier comprises the following steps:

[0174] S31, adding bentonite in an amount of 1 wt% of the tartaric acid solution to a 10 wt% tartaric acid solution, heating under reflux at 120° C. for 8 h, filtering, washing, and drying to obtain acidified bentonite;

[0175] S32. Mix acidified bentonite, 1-butyl-3-methylimidazolium acetate, and N,N-dimethylformamide in a mass ratio of 1:0.1:50, stir at room temperature for 12 hours, centrifuge, collect the solid, and vacuum dry to obtain a modifier.

[0176] A method for preparing nylon fiber containing active ingredients of wolfberry, dendrobium and tuckahoe, comprising the following steps:

[0177] Adding wolfberry extract, dendrobium extract, Poria extract and modifier into water 20 times the total mass of wolfberry extract, dendrobium extract, Poria extract and modifier, stirring at a speed of 1000 r / min for 2 hours, and vacuum drying at 70° C. for 4 hours to obtain a mixture;

[0178] The nylon chips are uniformly mixed with the mixture, heated to 240°C, melt-extruded, cooled, pelletized, and dried to obtain nylon masterbatch;

[0179] The nylon masterbatch is extruded and melted at 250°C, spun, and the spinning speed is controlled to be 1600m / min. Then, the nylon fiber containing the active ingredients of wolfberry, dendrobium and poria is obtained through drawing, oiling and winding.

[0180] Comparative Example 5

[0181] Comparative Example 5 is the same as Example 1, except that the same mass of Lycium barbarum extract is used to replace the Dendrobium officinale extract, as follows:

[0182] A nylon fiber containing wolfberry and poria active ingredients, comprising the following raw materials in parts by weight: 100 parts of nylon slices, 35 parts of wolfberry extract, 8 parts of poria extract, and 10 parts of a modifier;

[0183] The preparation method of wolfberry extract comprises the following steps:

[0184] S11, after the wolfberry powder, low-temperature hydrolase and water are mixed uniformly in a mass ratio of 10:1:50, the first enzymatic hydrolysis is carried out at 20° C. and pH 3.5 for 20 hours to obtain a first enzymatic hydrolysis product;

[0185] S12, mixing the first enzymatic hydrolysis product and the mesophilic hydrolase at a mass ratio of 100:1, performing a second enzymatic hydrolysis at 50° C. and pH 6.5 for 10 h, and centrifuging to obtain a second enzymatic hydrolyzate;

[0186] S13, concentrating the second enzymatic hydrolyzate under reduced pressure, and drying to obtain a wolfberry extract;

[0187] Among them, the low-temperature hydrolase is low-temperature xylanase; the medium-temperature hydrolase is α-amylase;

[0188] The preparation method of Poria cocos extract comprises the following steps:

[0189] S21, mixing Poria powder and water in a mass ratio of 1:40, extracting at 120° C. for 5 min, filtering, and obtaining a filtrate;

[0190] S22, adding a composite enzyme of 0.01 times the mass of Poria powder to the filtrate, and performing enzymolysis reaction at 50°C and pH 4 for 2 hours; inoculating 5wt% of rhamnosus Bacillus on the enzymolysis reaction solution, culturing at 32°C for 36 hours, filtering, concentrating under reduced pressure, and drying to obtain a Poria extract;

[0191] The composite enzyme is obtained by mixing cellulase and ligninase in a mass ratio of 4:1;

[0192] The preparation method of the modifier comprises the following steps:

[0193] S31, adding bentonite in an amount of 1 wt% of the tartaric acid solution to a 10 wt% tartaric acid solution, heating under reflux at 120° C. for 8 h, filtering, washing, and drying to obtain acidified bentonite;

[0194] S32. Mix acidified bentonite, 1-butyl-3-methylimidazolium acetate, and N,N-dimethylformamide in a mass ratio of 1:0.1:50, stir at room temperature for 12 hours, centrifuge, collect the solid, and vacuum dry to obtain a modifier.

[0195] A method for preparing nylon fiber containing wolfberry and Poria cocos active ingredients comprises the following steps:

[0196] Adding the wolfberry extract, the Poria extract and the modifier into water 20 times the total mass of the wolfberry extract, the Poria extract and the modifier, stirring at a speed of 1000 r / min for 2 hours, and vacuum drying at 70° C. for 4 hours to obtain a mixture;

[0197] The nylon chips are uniformly mixed with the mixture, heated to 240°C, melt-extruded, cooled, pelletized, and dried to obtain nylon masterbatch;

[0198] The nylon masterbatch is extruded and melted at 250°C, spun, and the spinning speed is controlled to be 1600m / min. Then, the nylon fiber containing the active ingredients of wolfberry and poria is obtained through drawing, oiling and winding.

[0199] Comparative Example 6

[0200] Comparative Example 6 is the same as Example 1, except that the same mass of Poria cocos extract is used to replace the wolfberry extract, as follows:

[0201] A nylon fiber containing active ingredients of dendrobium and tuckahoe, comprising the following raw materials in parts by weight: 100 parts of nylon slices, 20 parts of dendrobium extract, 23 parts of tuckahoe extract, and 10 parts of a modifier;

[0202] The preparation method of the dendrobium extract comprises the following steps:

[0203] The dendrobium powder and ethanol were mixed evenly at a mass ratio of 1:40, and then extracted at room temperature for 10 hours, and the extraction was repeated twice, and the extracts were combined, concentrated under reduced pressure, and dried to obtain a dendrobium extract;

[0204] The preparation method of Poria cocos extract comprises the following steps:

[0205] S21, mixing Poria powder and water in a mass ratio of 1:40, extracting at 120° C. for 5 min, filtering, and obtaining a filtrate;

[0206] S22, adding a composite enzyme of 0.01 times the mass of Poria powder to the filtrate, and performing enzymolysis reaction at 50°C and pH 4 for 2 hours; inoculating 5wt% of rhamnosus Bacillus on the enzymolysis reaction solution, culturing at 32°C for 36 hours, filtering, concentrating under reduced pressure, and drying to obtain a Poria extract;

[0207] The composite enzyme is obtained by mixing cellulase and ligninase in a mass ratio of 4:1;

[0208] The preparation method of the modifier comprises the following steps:

[0209] S31, adding bentonite in an amount of 1 wt% of the tartaric acid solution to a 10 wt% tartaric acid solution, heating under reflux at 120° C. for 8 h, filtering, washing, and drying to obtain acidified bentonite;

[0210] S32. Mix acidified bentonite, 1-butyl-3-methylimidazolium acetate, and N,N-dimethylformamide in a mass ratio of 1:0.1:50, stir at room temperature for 12 hours, centrifuge, collect the solid, and vacuum dry to obtain a modifier.

[0211] A method for preparing nylon fiber containing active ingredients of dendrobium and tuckahoe, comprising the following steps:

[0212] Add the dendrobium extract, the Poria extract and the modifier into water 20 times the total mass of the dendrobium extract, the Poria extract and the modifier, stir at a speed of 1000 r / min for 2 hours, and vacuum dry at 70° C. for 4 hours to obtain a mixture;

[0213] The nylon chips are uniformly mixed with the mixture, heated to 240°C, melt-extruded, cooled, pelletized, and dried to obtain nylon masterbatch;

[0214] The nylon masterbatch is extruded and melted at 250°C, spun, and the spinning speed is controlled to be 1600m / min. Then, the nylon fiber containing the active ingredients of dendrobium and poria is obtained through drawing, oiling and winding.

[0215] Comparative Example 7

[0216] Comparative Example 7 is the same as Example 1, except that the modifier is replaced by an equal mass of bentonite, as follows:

[0217] A nylon fiber containing wolfberry, dendrobium and tuckahoe active ingredients, comprising the following raw materials in parts by weight: 100 parts of nylon slices, 15 parts of wolfberry extract, 20 parts of dendrobium extract, 8 parts of tuckahoe extract, and 10 parts of bentonite;

[0218] The preparation method of wolfberry extract comprises the following steps:

[0219] S11, after the wolfberry powder, low-temperature hydrolase and water are mixed uniformly in a mass ratio of 10:1:50, the first enzymatic hydrolysis is carried out at 20° C. and pH 3.5 for 20 hours to obtain a first enzymatic hydrolysis product;

[0220] S12, mixing the first enzymatic hydrolysis product and the mesophilic hydrolase at a mass ratio of 100:1, performing a second enzymatic hydrolysis at 50° C. and pH 6.5 for 10 h, and centrifuging to obtain a second enzymatic hydrolyzate;

[0221] S13, concentrating the second enzymatic hydrolyzate under reduced pressure, and drying to obtain a wolfberry extract;

[0222] Among them, the low-temperature hydrolase is low-temperature xylanase; the medium-temperature hydrolase is α-amylase;

[0223] The preparation method of the dendrobium extract comprises the following steps:

[0224] The dendrobium powder and ethanol were mixed evenly at a mass ratio of 1:40, and then extracted at room temperature for 10 hours, and the extraction was repeated twice, and the extracts were combined, concentrated under reduced pressure, and dried to obtain a dendrobium extract;

[0225] The preparation method of Poria cocos extract comprises the following steps:

[0226] S21, mixing Poria powder and water in a mass ratio of 1:40, extracting at 120° C. for 5 min, filtering, and obtaining a filtrate;

[0227] S22, adding a composite enzyme of 0.01 times the mass of Poria powder to the filtrate, and performing enzymolysis reaction at 50°C and pH 4 for 2 hours; inoculating 5wt% of rhamnosus Bacillus on the enzymolysis reaction solution, culturing at 32°C for 36 hours, filtering, concentrating under reduced pressure, and drying to obtain a Poria extract;

[0228] The composite enzyme is obtained by mixing cellulase and ligninase in a mass ratio of 4:1;

[0229] A method for preparing nylon fiber containing active ingredients of wolfberry, dendrobium and tuckahoe, comprising the following steps:

[0230] Adding wolfberry extract, dendrobium extract, Poria extract and bentonite into water 20 times the total mass of wolfberry extract, dendrobium extract, Poria extract and bentonite, stirring at a speed of 1000 r / min for 2 hours, and vacuum drying at 70° C. for 4 hours to obtain a mixture;

[0231] The nylon chips are uniformly mixed with the mixture, heated to 240°C, melt-extruded, cooled, pelletized, and dried to obtain nylon masterbatch;

[0232] The nylon masterbatch is extruded and melted at 250°C, spun, and the spinning speed is controlled to be 1600m / min. Then, the nylon fiber containing the active ingredients of wolfberry, dendrobium and poria is obtained through drawing, oiling and winding.

[0233] The nylon fibers obtained in Examples 1-3 and Comparative Examples 1-7 were respectively tested to weave fabrics of the same structure, and various performance tests were performed to obtain the following result parameters, as shown in Table 1:

[0234] The test was conducted in accordance with GB / T 20944.3-2008 "Evaluation of antimicrobial properties of textiles Part 3: Oscillation method". The antibacterial rates of the samples were tested at room temperature, after being treated at 50℃ for 1 hour, and after being treated at 100℃ for 1 hour.

[0235] Table 1:

[0236]

[0237] From the data shown in Table 1 above, it can be seen that the nylon fibers obtained in Examples 1-3 have significantly improved antibacterial effects on three common pathogens, and still maintain antibacterial activity after high-temperature treatment, and have broad application prospects.

[0238] By comparing Example 1 with Comparative Examples 1 and 2, it can be seen that the wolfberry extract of the present application is first subjected to low-temperature enzymatic hydrolysis by a low-temperature hydrolase and then to high-temperature enzymatic hydrolysis by a medium-temperature hydrolase. The two-step enzymatic hydrolysis can fully extract the active ingredients in wolfberry and effectively improve the antibacterial properties of nylon fiber.

[0239] By comparing Example 1 with Comparative Examples 3 and 4, it can be seen that the Poria cocos extract of the present application is first extracted with water, then hydrolyzed with a composite enzyme, and finally fermented with Rhamnosus spp. The combination of multiple extraction methods is sufficient to extract the active ingredients in Poria cocos and significantly enhance the antibacterial properties of nylon fiber.

[0240] By comparing Example 1 with Comparative Examples 5 and 6, it can be seen that the present application contains wolfberry extract, dendrobium extract and Poria extract, which interact with each other and coordinate to enhance the synergy, thereby helping to improve the stability and durability of the antibacterial properties of nylon fiber.

[0241] By comparing Example 1 and Comparative Example 7, it can be seen that after the bentonite is acidified with tartaric acid and then modified with 1-butyl-3-methylimidazole acetate, the modifier can be organically combined with the wolfberry extract, the dendrobium extract, and the Poria extract, so that the plant extract is stabilized on the modifier, which can enhance the stability and durability of the antibacterial properties of the nylon fiber, and after high-temperature treatment, it still has excellent antibacterial properties.

[0242] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A nylon fiber containing the active ingredients of wolfberry, dendrobium and tuckahoe, characterized in that: The invention comprises the following raw materials in parts by weight: 100-300 parts of nylon slices, 15-30 parts of wolfberry extract, 10-20 parts of dendrobium extract, 8-20 parts of poria extract and 10-20 parts of modifier.

2. The nylon fiber containing the active ingredients of wolfberry, dendrobium and tuckahoe according to claim 1, characterized in that: The preparation method of the wolfberry extract comprises the following steps: S11, after the wolfberry powder, low-temperature hydrolase and water are uniformly mixed in a mass ratio of 10:1-3:50-100, a first enzymatic hydrolysis is performed at 20-30° C. and a pH value of 3.5-6.5 for 10-20 hours to obtain a first enzymatic hydrolysis product; S12, mixing the first enzymatic hydrolysis product and the mesophilic hydrolase in a mass ratio of 100:1-5, performing a second enzymatic hydrolysis at 31-50° C. and a pH value of 3.5-6.5 for 10-20 h, and centrifuging to obtain a second enzymatic hydrolyzate; S13, concentrating the second enzymatic hydrolyzate under reduced pressure, and drying to obtain wolfberry extract.

3. The nylon fiber containing the active ingredients of wolfberry, dendrobium and tuckahoe according to claim 2, characterized in that: The low-temperature hydrolase is a low-temperature xylanase; the medium-temperature hydrolase is an α-amylase and / or a β-amylase.

4. The nylon fiber containing the active ingredients of wolfberry, dendrobium and tuckahoe according to claim 1, characterized in that: The preparation method of the dendrobium extract comprises the following steps: The dendrobium powder and ethanol are uniformly mixed in a mass ratio of 1:40-60, and then extracted at room temperature for 10-24 hours, and the mixture is repeated twice. The extracts are combined, concentrated under reduced pressure, and dried to obtain the dendrobium extract.

5. The nylon fiber containing the active ingredients of wolfberry, dendrobium and tuckahoe according to claim 1, characterized in that: The preparation method of the Poria cocos extract comprises the following steps: S21, mixing Poria powder and water in a mass ratio of 1:40-60, extracting at 120-140° C. for 5-10 min, filtering to obtain a filtrate; S22, adding a composite enzyme in an amount of 0.01-0.1 times the mass of Poria powder to the filtrate, and performing an enzymatic hydrolysis reaction at 50-55° C. and a pH value of 4-6 for 2-6 hours; inoculating 5wt% of rhamnosus Bacillus on the enzymatic hydrolysis reaction liquid, culturing at 32-37° C. for 36-48 hours, filtering, concentrating under reduced pressure, and drying to obtain a Poria extract.

6. The nylon fiber containing the active ingredients of wolfberry, dendrobium and tuckahoe according to claim 5, characterized in that: The composite enzyme is obtained by mixing cellulase and ligninase in a mass ratio of 4:1-8.

7. The nylon fiber containing the active ingredients of wolfberry, dendrobium and tuckahoe according to claim 1, characterized in that: The preparation method of the modifier comprises the following steps: S31, adding bentonite to the tartaric acid solution, heating under reflux at 120-130° C. for 6-8 hours, filtering, washing, and drying to obtain acidified bentonite; S32. Stir the acidified bentonite, 1-butyl-3-methylimidazolium acetate and N,N-dimethylformamide at room temperature for 12-48 hours, centrifuge, collect the solid, and dry it in vacuo to obtain a modifier.

8. The nylon fiber containing the active ingredients of wolfberry, dendrobium and tuckahoe according to claim 7, characterized in that: The mass ratio of the bentonite to the tartaric acid solution is 1-5:100; the concentration of the tartaric acid solution is 10-15wt%.

9. The nylon fiber containing the active ingredients of wolfberry, dendrobium and tuckahoe according to claim 7, characterized in that: The mass ratio of the acidified bentonite, 1-butyl-3-methylimidazole acetate and N,N-dimethylformamide is 1-5:0.1-1:50-100.

10. A method for preparing nylon fiber containing active ingredients of wolfberry, dendrobium and tuckahoe as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Adding wolfberry extract, dendrobium extract, Poria extract and a modifier into water, stirring evenly, and vacuum drying to obtain a mixture; The nylon chips are uniformly mixed with the mixture, heated to 240-260°C, melt-extruded, cooled, pelletized, and dried to obtain nylon masterbatch; The nylon masterbatch is extruded and melted at 250-270°C, spun, and the spinning speed is controlled to be 1600-1800m / min, and then drawn, oiled, and wound to obtain nylon fibers containing active ingredients of wolfberry, dendrobium, and poria.

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