CN113417027A - Preparation process of non-dyed nylon fiber - Google Patents
Preparation process of non-dyed nylon fiber Download PDFInfo
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- CN113417027A CN113417027A CN202110883431.7A CN202110883431A CN113417027A CN 113417027 A CN113417027 A CN 113417027A CN 202110883431 A CN202110883431 A CN 202110883431A CN 113417027 A CN113417027 A CN 113417027A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/46—Compounds containing quaternary nitrogen atoms
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
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- General Chemical & Material Sciences (AREA)
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Abstract
The invention belongs to the field of chemical fiber preparation, and particularly relates to a preparation process of a non-dyed nylon fiber, which solves the problems of poor light resistance, poor antibacterial property, easy deformation and the like of the nylon fiber in the prior art. The preparation process of the non-dyed nylon fiber comprises the following steps: firstly, preparing a modified solvent with an antibacterial component, mixing the modified solvent with the non-dyed nylon chips to obtain a polymer melt, and filtering and drying to obtain modified master batches; blending the modified master batch and the non-dyed nylon, heating and extruding to obtain filaments, impregnating by using an antibacterial solution, freeze-drying, and finally obtaining the non-dyed nylon after drafting and heat setting. According to the invention, the antibacterial component, the nano-scale antibacterial agent and the freeze-drying technology are added into the non-dyed nylon to lock the antibacterial solution, so that the obtained non-dyed nylon fiber has strong antibacterial performance and can inhibit staphylococcus aureus, escherichia coli, candida albicans and the like.
Description
Technical Field
The invention belongs to the field of chemical fiber preparation, and particularly relates to a preparation process of a non-dyed nylon fiber.
Background
Polyamide fiber, a known Polyamide (PA) fiber, is a generic name for polymers having a repeating amide group in a molecular main chain as a fiber, and is internationally called Nylon or Nylon (Nylon), and since a jinzhou chemical fiber factory is the first factory in China for synthesizing Polyamide fiber, it is domestically called "Polyamide". According to the international standard of traffic, chinlon is named according to the number of carbon atoms of a polymerization monomer, for example, polyhexamethylene adipamide can be recorded as chinlon 66.
The nylon fiber is the synthetic fiber which is put into industrial production at the earliest time in the world and is also a main variety of the synthetic fiber. The varieties of the polyamide fibers are various, and according to the chemical composition of a macromolecular chain, common polyamide fibers comprise aliphatic PA (such as polyamide 6 and polyamide 66), alicyclic PA (such as polydodecanedioic acid p-dicyclohexyl methane diamine fiber) and aromatic PA (such as polyamide 6T and polyamide MXD6), and unusual polyamide fibers comprise polyamide 3, polyamide 4, polyamide 8, polyamide 9 and the like. The conventional nylon has certain characteristics through chemical modification or physical deformation, and differential nylon can be obtained.
The chinlon has excellent performance, is widely applied to various aspects of life and social economy of people, and can be mainly used in three fields: clothing, industrial cloths and decorative carpets. At present, the most common and dominating nylon fibers in domestic and foreign markets are nylon 6 and nylon 66, and China mainly uses nylon 6. The nylon-6 is used as a fabric raw material and a garment material for clothes; the nylon 66 is mainly used as industrial yarn and is mainly used for automobile tires, cord fabrics and the like. The nylon 6 can also be used as cord fabric, but the quality is lower than that of the nylon 66.
Chinlon 6 is known as polycaprolactam, which is commonly used in large-scale industrial production as a raw material, and is subjected to a series of reactions for ring-opening polymerization at a proper temperature in the presence of an activating agent (such as a small amount of water), wherein a ring-opening product after hydrolysis is aminocaproic acid, which can be completed through two ways of polycondensation or addition, so that monomer molecules are connected one by one to form long-chain polycaprolactam. The nylon 6 is formed by melt spinning, mainly comprises chip melt spinning, and the spinning process is basically the same as that of polyester spinning. However, the nylon-6 polycondensate contains 8-10% of low molecular weight compound, and needs to be removed by slicing extraction before spinning or washing after spinning.
At present, the polyamide fiber still has certain shortcoming, for example, the light fastness is poor, and warp easily in practical process, and polyamide fiber when being as medical or sanitary products fibre in addition, its antibacterial property has certain requirement, and to polyamide fiber's antibacterial property, this patent will make improvement to this performance to obtain the no dyeing polyamide fiber who has certain antibacterial property.
Disclosure of Invention
The invention aims to solve the problems of poor light resistance, poor antibacterial property, easy deformation and the like of the nylon fiber in the prior art, and provides a preparation process of the non-dyed nylon fiber, which has the advantages of simple method and reasonable design.
The invention realizes the purpose through the following technical scheme:
a preparation process of non-dyed nylon fiber comprises the following steps:
step S1: according to the mass portion, 10-15 parts of activated carbon fiber, 10-20 parts of water-absorbing resin, 5-10 parts of tall oil fatty acid, 10-15 parts of nano antibacterial agent, 0.5-1 part of antioxidant and 10-30 parts of deionized water are uniformly mixed to obtain a modified solvent;
step S2: mixing a modifying solvent and the non-dyed nylon chips to obtain a polymer melt, and filtering and drying the polymer melt to obtain modified master batches;
step S3: taking the modified master batches obtained in the step S2 and the non-dyed nylon chips according to the mass ratio of 1:5-10, blending, heating and melting by a screw extruder, and extruding non-dyed nylon filaments;
step S4: soaking the non-dyed nylon filament obtained in the step S3 in an antibacterial solution, freeze-drying, repeating the step for 2-3 times, reversing, dividing, drafting and heat-setting to obtain the heat-set non-dyed nylon;
step S5: and (5) carrying out balanced stretching on the heat-set non-dyed nylon obtained in the step S4, and then carrying out package to form a non-dyed nylon packaging finished product.
As a further optimization scheme of the invention, the particle size of the nano antibacterial agent in the step S1 is 50-100nm, and the nano antibacterial agent is prepared by compounding quaternary ammonium salt and silver-loaded zeolite in a mass ratio of 1: 3-5.
As a further optimization scheme of the invention, the mixing ratio of the non-dyed nylon and the modified solvent in the step S2 is 1-5: 1.
as a further optimization scheme of the invention, the heating temperature of the screw extruder in the step S3 is 250-260 ℃.
As a further optimization scheme of the invention, the immersion time of the antibacterial solution in the step S4 is 1-3h, the freeze-drying temperature is-10-0 ℃, and the freeze-drying time is 2-10 h.
The invention has the beneficial effects that:
1) according to the invention, the quaternary ammonium salt and the silver-loaded zeolite are compounded to prepare the nano antibacterial agent, and the nano antibacterial agent is added into the modified solvent, so that the antibacterial property of the non-dyed nylon fiber is enhanced;
2) the tall oil fatty acid is added into the modification solvent, and the tall oil fatty acid and the nano antibacterial agent are utilized for synergistic compounding, so that the obtained modification solvent is used for modifying the non-dyed nylon fiber, and the mechanical property of the nylon fiber can be enhanced while the nylon fiber is endowed with super antibacterial property;
3) the method has the advantages that the non-dyed nylon fiber is soaked in the antibacterial solution, so that the absorption antibacterial component of the polluted nylon is absorbed, the loss of the antibacterial component on the surface of the non-dyed nylon is reduced through freeze drying, the antibacterial component adsorbed in the non-dyed nylon is stored to the greatest extent, and the antibacterial effect of the non-dyed nylon is stronger;
4) the method is simple and convenient to implement, and the prepared polluted chinlon has good light resistance, good mechanical property and excellent antibacterial property, and can be widely applied.
Detailed Description
The present application is described in further detail below, and it should be noted that the following detailed description is provided for illustrative purposes only, and is not intended to limit the scope of the present application, which is defined by the appended claims.
Example 1
A preparation process of non-dyed nylon fiber comprises the following steps:
step S1: according to the mass fraction, 10 parts of activated carbon fiber, 10 parts of water-absorbing resin, 5 parts of tall oil fatty acid, 10 parts of nano antibacterial agent with the particle size of 50nm, 0.5 part of antioxidant and 10 parts of deionized water are uniformly mixed to obtain a modified solvent, wherein the nano antibacterial agent is prepared by compounding quaternary ammonium salt and silver-loaded zeolite in a mass ratio of 1: 3;
step S2: mixing a modifying solvent and the non-dyed nylon chips according to the mass mixing ratio of 1:1 to obtain a polymer melt, and filtering and drying the polymer melt to obtain modified master batches;
step S3: taking the modified master batches obtained in the step S2 and the non-dyed nylon chips according to the mass ratio of 1:5, blending, heating and melting at 250 ℃ through a screw extruder, and extruding non-dyed nylon filaments;
step S4: soaking the non-dyed nylon filament obtained in the step S3 in an antibacterial solution for 1h, freeze-drying at-10 ℃ for 2h, repeating the step for 2-3 times, and then reversing, splitting, drafting and heat-setting to obtain the heat-set non-dyed nylon;
step S5: and (5) carrying out balanced stretching on the heat-set non-dyed nylon obtained in the step S4, and then carrying out package to form a non-dyed nylon packaging finished product.
Example 2
A preparation process of non-dyed nylon fiber comprises the following steps:
step S1: according to the mass fraction, uniformly mixing 12 parts of activated carbon fiber, 15 parts of water-absorbing resin, 8 parts of tall oil fatty acid, 12 parts of nano antibacterial agent with the particle size of 80nm, 0.8 part of antioxidant and 20 parts of deionized water to obtain a modified solvent, wherein the nano antibacterial agent is prepared by compounding quaternary ammonium salt and silver-loaded zeolite in a mass ratio of 1: 3.5;
step S2: mixing a modifying solvent and the non-dyed nylon chips according to the mass mixing ratio of 2:1 to obtain a polymer melt, and filtering and drying the polymer melt to obtain modified master batches;
step S3: taking the modified master batches obtained in the step S2 and the non-dyed nylon chips according to the mass ratio of 1:6, blending, heating and melting at 255 ℃ through a screw extruder, and extruding non-dyed nylon filaments;
step S4: soaking the non-dyed nylon filament obtained in the step S3 in an antibacterial solution for 2h, freeze-drying at-8 ℃ for 4h, repeating the step for 2-3 times, and then reversing, splitting, drafting and heat-setting to obtain the heat-set non-dyed nylon;
step S5: and (5) carrying out balanced stretching on the heat-set non-dyed nylon obtained in the step S4, and then carrying out package to form a non-dyed nylon packaging finished product.
Example 3
A preparation process of non-dyed nylon fiber comprises the following steps:
step S1: according to the mass fraction, 14 parts of activated carbon fiber, 18 parts of water-absorbing resin, 10 parts of tall oil fatty acid, 15 parts of nano antibacterial agent with the particle size of 100nm, 1 part of antioxidant and 25 parts of deionized water are uniformly mixed to obtain a modified solvent, wherein the nano antibacterial agent is prepared by compounding quaternary ammonium salt and silver-loaded zeolite in a mass ratio of 1: 4;
step S2: mixing a modifying solvent and the non-dyed nylon chips according to a mass mixing ratio of 4:1 to obtain a polymer melt, and filtering and drying the polymer melt to obtain modified master batches;
step S3: taking the modified master batches obtained in the step S2 and the non-dyed nylon chips according to the mass ratio of 1:8, blending, heating and melting at 260 ℃ through a screw extruder, and extruding non-dyed nylon filaments;
step S4: soaking the non-dyed nylon filament obtained in the step S3 in an antibacterial solution for 3h, freeze-drying at-4 ℃ for 6h, repeating the step for 2-3 times, and then reversing, splitting, drafting and heat-setting to obtain the heat-set non-dyed nylon;
step S5: and (5) carrying out balanced stretching on the heat-set non-dyed nylon obtained in the step S4, and then carrying out package to form a non-dyed nylon packaging finished product.
Example 4
A preparation process of non-dyed nylon fiber comprises the following steps:
step S1: according to the mass fraction, 15 parts of activated carbon fiber, 20 parts of water-absorbing resin, 8 parts of tall oil fatty acid, 15 parts of nano antibacterial agent with the particle size of 80nm, 0.8 part of antioxidant and 30 parts of deionized water are uniformly mixed to obtain a modified solvent, wherein the nano antibacterial agent is prepared by compounding quaternary ammonium salt and silver-loaded zeolite in a mass ratio of 1: 5;
step S2: mixing a modifying solvent and the non-dyed nylon chips according to the mass mixing ratio of 5:1 to obtain a polymer melt, and filtering and drying the polymer melt to obtain modified master batches;
step S3: taking the modified master batches obtained in the step S2 and the non-dyed nylon chips according to the mass ratio of 1:10, blending, heating and melting at 250 ℃ through a screw extruder, and extruding non-dyed nylon filaments;
step S4: soaking the non-dyed nylon filament obtained in the step S3 in an antibacterial solution for 3h, freeze-drying at-0 ℃ for 10h, repeating the step for 2-3 times, and then reversing, splitting, drafting and heat-setting to obtain the heat-set non-dyed nylon;
step S5: and (5) carrying out balanced stretching on the heat-set non-dyed nylon obtained in the step S4, and then carrying out package to form a non-dyed nylon packaging finished product.
Comparative example 1
A preparation process of non-dyed nylon fiber comprises the following steps:
step S1: according to the mass percent, uniformly mixing 14 parts of activated carbon fiber, 18 parts of water-absorbing resin, 15 parts of nano antibacterial agent with the particle size of 100nm, 1 part of antioxidant and 25 parts of deionized water to obtain a modified solvent, wherein the nano antibacterial agent is prepared by compounding quaternary ammonium salt and silver-loaded zeolite in a mass ratio of 1: 4;
step S2: mixing a modifying solvent and the non-dyed nylon chips according to a mass mixing ratio of 4:1 to obtain a polymer melt, and filtering and drying the polymer melt to obtain modified master batches;
step S3: taking the modified master batches obtained in the step S2 and the non-dyed nylon chips according to the mass ratio of 1:8, blending, heating and melting at 260 ℃ through a screw extruder, and extruding non-dyed nylon filaments;
step S4: soaking the non-dyed nylon filament obtained in the step S3 in an antibacterial solution for 3h, freeze-drying at-4 ℃ for 6h, repeating the step for 2-3 times, and then reversing, splitting, drafting and heat-setting to obtain the heat-set non-dyed nylon;
step S5: and (5) carrying out balanced stretching on the heat-set non-dyed nylon obtained in the step S4, and then carrying out package to form a non-dyed nylon packaging finished product.
Comparative example 2
A preparation process of non-dyed nylon fiber comprises the following steps:
step S1: according to the mass portion, 14 portions of activated carbon fiber, 18 portions of water-absorbing resin, 10 portions of tall oil fatty acid, 1 portion of antioxidant and 25 portions of deionized water are uniformly mixed to obtain a modified solvent;
step S2: mixing a modifying solvent and the non-dyed nylon chips according to a mass mixing ratio of 4:1 to obtain a polymer melt, and filtering and drying the polymer melt to obtain modified master batches;
step S3: taking the modified master batches obtained in the step S2 and the non-dyed nylon chips according to the mass ratio of 1:8, blending, heating and melting at 260 ℃ through a screw extruder, and extruding non-dyed nylon filaments;
step S4: soaking the non-dyed nylon filament obtained in the step S3 in an antibacterial solution for 3h, freeze-drying at-4 ℃ for 6h, repeating the step for 2-3 times, and then reversing, splitting, drafting and heat-setting to obtain the heat-set non-dyed nylon;
step S5: and (5) carrying out balanced stretching on the heat-set non-dyed nylon obtained in the step S4, and then carrying out package to form a non-dyed nylon packaging finished product.
Comparative example 3
A preparation process of non-dyed nylon fiber comprises the following steps:
step S1: according to the mass portion, 14 portions of activated carbon fiber, 18 portions of water-absorbent resin, 1 portion of antioxidant and 25 portions of deionized water are uniformly mixed to obtain a modified solvent;
step S2: mixing a modifying solvent and the non-dyed nylon chips according to a mass mixing ratio of 4:1 to obtain a polymer melt, and filtering and drying the polymer melt to obtain modified master batches;
step S3: taking the modified master batches obtained in the step S2 and the non-dyed nylon chips according to the mass ratio of 1:8, blending, heating and melting at 260 ℃ through a screw extruder, and extruding non-dyed nylon filaments;
step S4: soaking the non-dyed nylon filament obtained in the step S3 in an antibacterial solution for 3h, freeze-drying at-4 ℃ for 6h, repeating the step for 2-3 times, and then reversing, splitting, drafting and heat-setting to obtain the heat-set non-dyed nylon;
step S5: and (5) carrying out balanced stretching on the heat-set non-dyed nylon obtained in the step S4, and then carrying out package to form a non-dyed nylon packaging finished product.
Comparative example 4
A preparation process of non-dyed nylon fiber comprises the following steps:
step S1: according to the mass fraction, 14 parts of activated carbon fiber, 18 parts of water-absorbing resin, 10 parts of tall oil fatty acid, 15 parts of nano antibacterial agent with the particle size of 100nm, 1 part of antioxidant and 25 parts of deionized water are uniformly mixed to obtain a modified solvent, wherein the nano antibacterial agent is prepared by compounding quaternary ammonium salt and silver-loaded zeolite in a mass ratio of 1: 4;
step S2: mixing a modifying solvent and the non-dyed nylon chips according to a mass mixing ratio of 4:1 to obtain a polymer melt, and filtering and drying the polymer melt to obtain modified master batches;
step S3: taking the modified master batches obtained in the step S2 and the non-dyed nylon chips according to the mass ratio of 1:8, blending, heating and melting at 260 ℃ through a screw extruder, and extruding non-dyed nylon filaments;
step S4: soaking the non-dyed nylon filament obtained in the step S3 in an antibacterial solution for 3 hours, drying at normal temperature, reversing, dividing, drafting and heat setting to obtain heat-set non-dyed nylon;
step S5: and (5) carrying out balanced stretching on the heat-set non-dyed nylon obtained in the step S4, and then carrying out package to form a non-dyed nylon packaging finished product.
The samples of the non-dyed chinlon obtained in examples 1 to 4 and comparative examples 1 to 4 were tested for their antibacterial properties, including Staphylococcus aureus, Escherichia coli and Candida albicans, and the results are shown in Table 1 below:
the results in the table above show that: when tall oil fatty acid or a nano antibacterial agent is added into the non-dyed chinlon, the non-dyed chinlon has antibacterial property, and the antibacterial effect has a superposition effect; when the non-dyed chinlon is soaked in the antibacterial solvent and is subjected to freeze drying, the antibacterial effect of the non-dyed chinlon is better than that of the non-dyed chinlon obtained by a common drying effect, because the non-dyed chinlon obtained by freeze drying has less loss of antibacterial components, the antibacterial components in the soaking solution can be locked, and the antibacterial effect of the non-dyed chinlon is better.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (5)
1. A preparation process of non-dyed nylon fiber is characterized by comprising the following steps:
step S1: according to the mass portion, 10-15 parts of activated carbon fiber, 10-20 parts of water-absorbing resin, 5-10 parts of tall oil fatty acid, 10-15 parts of nano antibacterial agent, 0.5-1 part of antioxidant and 10-30 parts of deionized water are uniformly mixed to obtain a modified solvent;
step S2: mixing a modifying solvent and the non-dyed nylon chips to obtain a polymer melt, and filtering and drying the polymer melt to obtain modified master batches;
step S3: taking the modified master batches obtained in the step S2 and the non-dyed nylon chips according to the mass ratio of 1:5-10, blending, heating and melting by a screw extruder, and extruding non-dyed nylon filaments;
step S4: soaking the non-dyed nylon filament obtained in the step S3 in an antibacterial solution, freeze-drying, repeating the step for 2-3 times, reversing, dividing, drafting and heat-setting to obtain the heat-set non-dyed nylon;
step S5: and (5) carrying out balanced stretching on the heat-set non-dyed nylon obtained in the step S4, and then carrying out package to form a non-dyed nylon packaging finished product.
2. The preparation process of the non-dyed nylon fiber according to claim 1, characterized in that: the particle size of the nano antibacterial agent in the step S1 is 50-100nm, and the nano antibacterial agent is prepared by compounding quaternary ammonium salt and silver-loaded zeolite in a mass ratio of 1: 3-5.
3. The preparation process of the non-dyed nylon fiber according to claim 1, characterized in that: the mass mixing ratio of the non-dyed nylon and the modified solvent in the step S2 is 1-5: 1.
4. the preparation process of the non-dyed nylon fiber according to claim 1, characterized in that: the heating temperature of the screw extruder in the step S3 is 250-260 ℃.
5. The preparation process of the non-dyed nylon fiber according to claim 1, characterized in that: the immersion time of the antibacterial solution in the step S4 is 1-3h, the freeze-drying temperature is-10-0 ℃, and the freeze-drying time is 2-10 h.
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2021
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| CN101321504A (en) * | 2005-10-04 | 2008-12-10 | 韦斯特法利亚瑟奇股份有限公司 | Hoof bath system |
| CN106283336A (en) * | 2016-08-08 | 2017-01-04 | 福建万鸿纺织有限公司 | A kind of antibacterial comfortable nylon fabric and preparation method thereof |
| CN107383921A (en) * | 2017-08-10 | 2017-11-24 | 青阳县吉祥塑胶有限公司 | A kind of non-woven fabrics anti-agglomeration antibacterial filler and preparation method thereof |
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Application publication date: 20210921 |