CN115449942B - Nanometer zinc oxide antibacterial antiseptic polyester-nylon superfine fiber and preparation process thereof - Google Patents

Nanometer zinc oxide antibacterial antiseptic polyester-nylon superfine fiber and preparation process thereof Download PDF

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Publication number
CN115449942B
CN115449942B CN202211176020.5A CN202211176020A CN115449942B CN 115449942 B CN115449942 B CN 115449942B CN 202211176020 A CN202211176020 A CN 202211176020A CN 115449942 B CN115449942 B CN 115449942B
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fiber
polyester
zinc oxide
nylon
nano zinc
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CN202211176020.5A
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CN115449942A (en
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雷太林
许小磊
余三川
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Ningbo Sanbang Microfiber Co ltd
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Ningbo Sanbang Microfiber Co ltd
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • 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
    • D06M11/32—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
    • 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
    • D06M2101/32—Polyesters
    • 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
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

The invention relates to a polyester-nylon superfine fiber and the preparation technical field, in particular to a nano zinc oxide antibacterial anti-corrosion polyester-nylon superfine fiber and the preparation process, comprising polyester-nylon fiber, imitated silk fiber and nano zinc oxide particle gel liquid; the polyester-nylon fiber and the imitated silk fiber are adhered to the nano zinc oxide particle gel solution and then combined to form the polyester-nylon composite fiber, when the polyester-nylon fiber is processed into the composite fiber, a groove for bearing the nano zinc oxide particle gel solution is formed at the combining point of the fiber, so that the combining point is immersed in the nano zinc oxide particle gel solution of the groove, before twisting and combining, the nano zinc oxide particles enter into a crack between two groups of fibers, so that the nano zinc oxide particles are tightly clamped by the two groups of fibers, and the polyester-nylon fiber after the composite fiber can still well ensure the antibacterial and antiseptic effect.

Description

Nanometer zinc oxide antibacterial antiseptic polyester-nylon superfine fiber and preparation process thereof
Technical Field
The invention relates to the technical field of polyester-nylon superfine fiber and preparation thereof, in particular to a nano zinc oxide antibacterial anti-corrosion polyester-nylon superfine fiber and a preparation process thereof.
Background
Polyamide and polyester composite fiber is used as raw materials of polyamide and polyester composite fiber. The two polymers are respectively melted by two screw extruders, are combined at the mouth of a spinneret orifice through respective flow channels of a composite spinneret assembly, and are co-extruded to obtain the polymer. The polyester-nylon fiber has the advantages of nylon and terylene, and has the advantages of softness, good elasticity, good wear resistance and bright dyeing.
Nano zinc oxide is a multifunctional novel inorganic material, and the particle size of the nano zinc oxide is about 1-100 nanometers. Due to the miniaturization of the crystal grains, the surface electronic structure and the crystal structure of the crystal grains are changed, and the characteristics of surface effect, volume effect, quantum size effect, macroscopic tunnel effect, high transparency, high dispersibility and the like which are not possessed by macroscopic objects are generated, so that the nano zinc oxide is found to be applicable to ultraviolet shielding materials, antibacterial agents, fluorescent materials, photocatalytic materials and the like in the textile field in recent years.
While nano zinc oxide has two approaches when applied to chemical fiber textiles: firstly, nano zinc oxide is directly added into an initial reaction liquid of chemical fibers, and functional fibers are synthesized by adopting conventional polymerization reaction, so that the nano zinc oxide is uniformly distributed in the fibers, and the other is that the nano zinc oxide is prepared into a finishing liquid of fabrics as a finishing agent, and nano zinc oxide particles are adsorbed on the surfaces of the fibers by padding.
However, when the conventional polyester-nylon fiber is used to form a composite fiber, when the two fibers are twisted together, the contact part cannot be subjected to aftertreatment of nano zinc oxide at a certain time, and the contact part is rubbed with the fiber to cause the falling of nano zinc oxide particles, so that the corrosion-preventing effect is damaged.
Disclosure of Invention
Aiming at the problems, the invention provides the nano zinc oxide antibacterial and antiseptic polyester-nylon superfine fiber and the preparation process, and the grooves for bearing nano zinc oxide particle gel liquid are arranged at the merging points of the polyester-nylon fiber when the polyester-nylon fiber is processed, so that the merging points are immersed in the nano zinc oxide particle gel liquid of the grooves, and before twisting and merging, the nano zinc oxide particles enter into the cracks between the two groups of fibers, so that the nano zinc oxide particles are tightly clamped by the two groups of fibers, and the polyester-nylon fiber after the composite fiber is ensured to have good antibacterial and antiseptic effects.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a nano zinc oxide antibacterial antiseptic polyester-nylon superfine fiber, comprising:
polyester-nylon fiber, imitated silk fiber and nano zinc oxide particle gel solution;
the intersection point of the polyester-nylon fiber and the ice-silk-like fiber is immersed in the nano zinc oxide particle gel solution, and the polyester-nylon fiber and the ice-silk-like fiber are combined to form the polyester-nylon composite fiber after being adhered to the nano zinc oxide particle gel solution.
As an improvement, the polyester-nylon fiber and the nylon-imitated fiber are dried after the nano zinc oxide particle gel solution is adhered to each other and after pre-twisting is finished, so that the clamping coated zinc oxide nano particles are formed between the nylon-imitated fiber and the polyester-nylon fiber.
As an improvement, the heat generated by drying the ice-silk-like fiber after adhering the nano zinc oxide particle gel liquid is generated by the working of the pre-twisting spindle.
As an improvement, the polyester-nylon fiber takes polyester fiber as a core wire and is formed by coating nylon fiber.
As an improvement, the nylon fiber layer of the polyester-nylon fiber is coated with a nano zinc oxide antibacterial layer.
As an improvement, the nano zinc oxide particle gel solution is prepared by a sol-gel method, and the particle size of zinc oxide seed crystal nano particles in the gel solution is 30-60nm.
As an improvement, the liquid phase of the nano zinc oxide particle gel liquid is any one of ethanol, water and isopropanol, and the concentration of the gel liquid is 5.5-7.5mg/mL.
In addition, the application provides a process for preparing the nano zinc oxide antibacterial anti-corrosion polyester-nylon superfine fiber, which comprises the following steps of:
s1, conveying a roll of polyester-nylon fiber and a roll of imitated silk fiber through traction of a front roller;
s2, pulling the polyester-nylon fiber and the imitated silk fiber through the front roller, converging the polyester-nylon fiber and the imitated silk fiber at a pre-twisting bobbin, wherein a groove for bearing nano zinc oxide particle gel liquid is formed at the top of the pre-twisting bobbin, the polyester-nylon fiber and the imitated silk fiber pass through the groove and rotate, a vortex is formed in the groove, and the vortex is positioned at the junction of the polyester-nylon fiber and the imitated silk fiber;
s3, after the ice-like silk fiber adsorbs the nano zinc oxide particle gel solution from the groove, threading the nano zinc oxide particle gel solution along with the polyester-nylon fiber to a pre-twisting spindle for pre-twisting treatment, and heating and drying the ice-like silk fiber and the polyester-nylon fiber by heat generated in the pre-twisting process of the pre-twisting spindle;
s4, twisting the pre-twisted polyester-nylon fiber and the twisting spindle with the ice-like silk fiber passing to the lower side to form the polyester-nylon composite fiber.
As an improvement, the groove at the top of the pre-twisting bobbin and the pre-twisting bobbin are arranged in a relative rotation way, so that the nano zinc oxide particle gel liquid in the groove forms a vortex around the intersection point of the polyester-nylon fiber and the imitated silk fiber.
As an improvement, the groove is in an inverted cone shape, and the groove and a through hole on the pre-twisting bobbin for the polyester-nylon fiber and the ice-silk-like fiber to pass through are in eccentric arrangement, the groove eccentrically rotates, and the polyester-nylon fiber and the ice-silk-like fiber are extruded along a smooth opening at the top of the groove for tensioning adjustment.
The invention has the beneficial effects that:
(1) According to the invention, when the polyester-nylon fiber is used for processing the composite fiber, the groove for bearing the nano zinc oxide particle gel solution is arranged at the merging point of the fiber, so that the merging point is immersed in the nano zinc oxide particle gel solution of the groove, before twisting and merging are carried out, the nano zinc oxide particles enter into the gaps between two groups of fibers, so that the nano zinc oxide particles are tightly clamped by the two groups of fibers, and the polyester-nylon fiber after the composite fiber can still well ensure the antibacterial and antiseptic effects;
(2) According to the invention, the grooves are eccentrically and rotatably arranged, so that the nano zinc oxide glue solution in the grooves is in a rotating vortex state, deposition of nano zinc oxide particles is avoided, and the nano zinc oxide particles are uniformly distributed when packaged, so that the nano zinc oxide particles can better enter into the cracks of the fibers through vortex;
(3) According to the invention, the grooves are eccentric with the through holes on the pre-twisting bobbins, so that the centers of vortexes formed by rotation of the nano zinc oxide glue solution in the grooves are just staggered with the fibers, and nano zinc oxide particles driven by the vortexes just rotate and collide with the fibers, so that the nano zinc oxide particles are adhered to the fibers;
(4) According to the invention, the smooth edges of the grooves are matched with eccentric rotation to extrude and tension the two groups of fibers, so that the aim of tensioning and adjusting is fulfilled, the clamping and fixing of the fibers to the nano zinc oxide particles are facilitated, and the nano zinc oxide particles can enter deeper into the cracks.
In conclusion, the nano zinc oxide fiber has the advantages of strong binding degree, good sterilization effect, uniform distribution and the like, and is particularly suitable for the technical fields of polyester-nylon fibers and preparation thereof.
Drawings
FIG. 1 is a schematic diagram of the antibacterial and antiseptic polyester-nylon superfine fiber structure of the nano zinc oxide;
FIG. 2 is a schematic diagram of a twisting three-dimensional structure according to a second embodiment of the present invention;
FIG. 3 is a schematic diagram of a second twisted side view of the second embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a second pre-twisted bobbin according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a break in a second pre-twisted bobbin according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a preparation process according to a second embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1:
as shown in fig. 1, a nano zinc oxide antibacterial anti-corrosion polyester-nylon superfine fiber comprises:
polyester-nylon fiber 1, imitated silk fiber 2 and nano zinc oxide particle gel solution 3;
the twisted intersection point of the polyester-nylon fiber 1 and the imitated silk fiber 2 is immersed in the nano zinc oxide particle gel solution 3, and the polyester-nylon fiber 1 and the imitated silk fiber 2 are adhered to the nano zinc oxide particle gel solution 3 and then combined to form the polyester-nylon composite fiber 4.
Further, after the nano zinc oxide particle gel solution 3 is adhered to the polyester-nylon fiber 1 and the nylon-imitated fiber 2, the polyester-nylon fiber is dried at the end of pre-twisting, so that the clamping coated zinc oxide nano particles are formed between the nylon-imitated fiber 2 and the polyester-nylon fiber 1.
Furthermore, the heat generated by drying the ice-silk-like fiber 2 after the nano zinc oxide particle gel solution 3 is adhered is generated by the working of the pre-twisting spindle.
Wherein, the polyester-nylon fiber 1 is formed by taking polyester fiber as a core wire and coating nylon fiber.
More preferably, the nylon fiber layer of the polyester-nylon fiber 1 is coated with a nano zinc oxide antibacterial layer.
The polyester-nylon fiber 1 can also be colored polyester-nylon fiber, the polyester-nylon fiber is formed by taking polyester fiber as a core wire and coating polyamide fiber, the polyester fiber comprises 96 parts of polyester and 4 parts of modifier by weight, and the modifier comprises 80 parts of graphene, 15 parts of basalt and 5 parts of polytetrafluoroethylene by weight.
The nylon fiber comprises 93 parts of nylon, 2 parts of color master batch and 5 parts of elastic agent, wherein the elastic agent comprises 50 parts of polyolefin elastomer, 35 parts of polyurethane elastomer, 10 parts of vulcanized silicone rubber and 5 parts of fluorocarbon.
When the polyester fiber is prepared, firstly, 80 parts of graphene, 15 parts of basalt and 5 parts of polytetrafluoroethylene are mixed and then added into a reaction furnace for high-temperature heating, the heating temperature is 400-500 ℃, the mixture is cooled and then ground into powder to obtain a modifier, then 96 parts of polyester and 4 parts of modifier are uniformly mixed and added into a screw extruder for melt extrusion to obtain a modified polyester melt, and the temperature is 240-250 ℃;
when the colored polyester-nylon fiber is prepared, 93 parts of nylon, 2 parts of color master batch and 5 parts of elastic agent are uniformly mixed and added into a screw extruder for melt extrusion to obtain a modified nylon melt, the temperature is 300-320 ℃, then the modified nylon melt is coated outside a core wire of the modified polyester melt through a conjugate spinning component for wiredrawing to form the colored polyester-nylon fiber, wherein the elastic agent is prepared by uniformly mixing 50 parts of polyolefin elastomer, 35 parts of polyurethane elastomer, 10 parts of vulcanized silicone rubber and 5 parts of fluorocarbon, then heating in a reaction furnace for reaction at 150-160 ℃, keeping for 6 hours, and then taking out and cooling to obtain the elastic agent.
The ice silk-like fiber comprises, by weight, 85 parts of viscose polymer fiber, 10 parts of soybean fiber, 3 parts of bamboo charcoal fiber and 2 parts of antistatic agent, wherein the antistatic agent comprises, by weight, 80 parts of fullerene, 15 parts of carbon fiber and 5 parts of aluminum nitride.
In the preparation of the ice silk-like fiber, 85 parts of viscose fiber, 10 parts of soybean fiber, 3 parts of bamboo charcoal fiber and 2 parts of antistatic agent are subjected to melt reaction in an extruder for 2 hours and then extrusion spinning is carried out to obtain the ice silk-like fiber, wherein in the preparation of the antistatic agent, 80 parts of fullerene, 15 parts of carbon fiber and 5 parts of aluminum nitride are firstly mixed in a high-speed mixer for 2 minutes and then compacted for 5 minutes under the pressure of 2.5MPa, then the mixture is moved into a heating furnace at 380 ℃ for heating for 2 hours, and then the mixture is taken out, and the mixture is ground into powder after being cooled, thus obtaining the antistatic agent.
And finally twisting the colored polyester-nylon fiber and the ice-silk-like fiber to obtain the high-elasticity polyester-nylon composite ice-silk-like fiber.
The nano zinc oxide particle gel liquid 3 is prepared by a sol-gel method, and the particle size of zinc oxide seed crystal nano particles in the gel liquid is 30-60nm.
Further, the liquid phase of the nano zinc oxide particle gel solution 3 is any one of ethanol, water and isopropanol, and the concentration of the gel solution is 5.5-7.5mg/mL.
The polyester-nylon fiber 1 and the iced silk-like fiber 2 are exemplified in the present application, but the present invention is not limited to bonding with the iced silk-like fiber, and may be bonded with other fibers.
The polyester fiber is prepared by adding a modifier into polyester to increase the strength of the polyester fiber. The graphene in the modifier is used as a carrier and a main auxiliary agent, so that the strength of the terylene is improved. The basalt has the characteristics of high strength, high temperature resistance, acid and alkali resistance, oxidation resistance, radiation resistance, heat insulation, sound insulation, fire resistance, flame retardance, good filterability, high compression strength and high shearing strength after being subjected to high-temperature treatment. The polytetrafluoroethylene can improve the acid and alkali resistance of terylene.
The nylon fiber is prepared by adding a color masterbatch into nylon to improve the color degree of the nylon and adding an elastic agent to improve the elasticity. The polyolefin elastomer and the polyurethane elastomer in the elastic agent are used as elastic elements, so that the elasticity of the whole nylon fiber can be improved. The vulcanized silicone rubber can promote the crosslinking between the elastomers, and the fluorocarbon can ensure that the strength of the elastomer can be ensured under the condition that the elastomer meets the requirement of elasticity.
The multifunctional ice silk-like fiber is characterized in that soybean fiber, bamboo charcoal fiber and antistatic agent are added into viscose fiber so as to realize the multifunction, wherein the soybean fiber can improve the toughness, the bamboo charcoal fiber can improve the antibacterial property, and the antistatic agent can realize the antistatic property. The fullerene in the antistatic agent is used as a carrier, and carbon fiber and aluminum nitride are added, so that the conductivity of the antistatic agent is rapidly improved.
The high-elastic polyester-nylon composite fiber has the technical effects that the colored polyester-nylon fiber and the imitated ice silk fiber are twisted together, in addition, the colored polyester-nylon fiber takes polyester fiber as a core wire and is formed by coating polyamide fiber outside, so that various fibers are complementary, protruding advantages are improved, the defect is overcome, and finally the prepared composite fiber has comfortable hand feeling, high strength and high elasticity.
In addition, it should be emphasized that the liquid phase of the nano zinc oxide particle gel solution 3 in the application is any one of ethanol, water and isopropanol, so that after the fiber is adhered with the nano zinc oxide particles, the fiber can be dried more quickly, the ethanol, the water and the isopropanol can be volatilized more quickly, and the ethanol, the water and the isopropanol can be heated by the heater, so that the volatilization is quickened.
Example 2:
as shown in fig. 2 to 6, embodiment 2 of the present invention provides a process for preparing the nano zinc oxide antibacterial and antiseptic polyester-nylon ultrafine fiber of embodiment 1, which comprises the following steps:
s1, conveying a roll of polyester-nylon fiber 1 and a roll of imitated silk fiber 2 through traction of a front roller 11;
s2, pulling the polyester-nylon fiber 1 and the ice-silk-like fiber 2 through the front roller 11, converging the polyester-nylon fiber 1 and the ice-silk-like fiber 2 at a pre-twisting bobbin 12, wherein a groove 121 for bearing a nano zinc oxide particle gel solution 3 is formed at the top of the pre-twisting bobbin 12, the polyester-nylon fiber 1 and the ice-silk-like fiber 2 pass through the groove 121, the groove 121 rotates, a vortex is formed in the groove 121, and the vortex is positioned at the junction of the polyester-nylon fiber 1 and the ice-silk-like fiber 2;
s3, after the ice-like silk fiber 2 adsorbs the nano zinc oxide particle gel liquid 3 from the groove 121, the nano zinc oxide particle gel liquid passes through a pre-twisting spindle 13 along with the polyester-nylon fiber 1 to be pre-twisted, and heat generated in the pre-twisting process of the pre-twisting spindle 13 heats and dries the ice-like silk fiber 2 and the polyester-nylon fiber 1;
s4, twisting the pre-twisted polyester-nylon fiber 1 and the twisting spindle 14 which penetrates the lower side of the ice-like silk fiber 2 to form the polyester-nylon composite fiber 4.
Further, the groove 121 at the top of the pre-twisting bobbin 12 is rotatably disposed relative to the pre-twisting bobbin 12, so that the nano zinc oxide particle gel liquid 3 in the groove 121 forms a vortex around the intersection point of the polyester-nylon fiber 1 and the imitated silk fiber 2.
Furthermore, the groove 121 is in an inverted cone shape, the groove 121 and a through hole 122 on the pre-twisting bobbin 12 for the polyester-nylon fiber 1 and the imitated silk fiber 2 to pass through are in an eccentric arrangement, the groove 121 eccentrically rotates, and the polyester-nylon fiber 1 and the imitated silk fiber 2 are extruded along the smooth opening at the top of the groove 121 for tensioning adjustment.
In addition, it should be noted in detail that the structure of the pre-twisting bobbin 12 is layered and includes a plurality of sub-bobbins 120, a through hole 122 for the fiber to pass through is formed in each sub-bobbin 120, and the pre-twisting bobbin 12 and the pre-twisting spindle 13 below are mutually matched, and are rotatably arranged at a high speed by the belt transmission 15 on the pre-twisting spindle 13, so that the pre-twisting spindle 13 rubs with the fiber at a high speed, heat is generated, and the fiber is dried.
Further, the groove 121 at the top of the pre-twisted bobbin 12 rotates when the pre-twisted bobbin 12 rotates, wherein the gear train 122 is disposed between the groove 121 and the uppermost sub-bobbin 120, the gear ring 1221 in the gear train 122 is fixedly disposed, the sun gear 1222 rotates with the sub-bobbin 120, and the planetary gear 1223 between the gear ring 1221 and the sun gear 1222 is connected with the groove 121, so that the sub-bobbin 120 rotates by the rotation of the sun gear 1222.
It is worth emphasizing that when the groove 121 rotates, the nano zinc oxide particle gel liquid 3 in the groove 121 forms a vortex in the groove 121 in the rotating process along with the groove 121, and the center of the vortex is just staggered with the through holes 122 on the groove 121, so that the nano zinc oxide particles are uniformly distributed, cannot be deposited, and can enter a crack of a fiber junction along with impact.
Further, the through holes 122 formed in the grooves 121 and the bobbins 120 are eccentrically arranged, and in the process of rotating the grooves 121, the edges of the grooves 121 touch and squeeze the fibers of the two groups, so that the fibers are tensioned and adjusted, and the gaps of the nano zinc oxide particles entering the fibers are better promoted.
In addition, in order to prevent the nano zinc oxide particle gel liquid in the groove from being sprayed out in a rotating way, a shielding can be arranged at the top of the groove, and each of the sub-bobbins 120 is provided with a conical groove for blocking the nano zinc oxide particle gel liquid flowing down from the groove, and the size of the through holes 122 arranged on the sub-bobbins 120 is just matched with the thickness of the fiber, so that the nano zinc oxide particle gel liquid is difficult to flow downwards from the through holes 122.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (5)

1. The process for preparing the nano zinc oxide antibacterial antiseptic polyester-nylon superfine fiber is characterized by comprising the following steps of:
s1, conveying a roll of polyester-nylon fiber (1) and a roll of imitated silk fiber (2) through traction of a front roller (11);
s2, pulling by the front roller (11), converging the polyester-nylon fiber (1) and the imitated silk fiber (2) at a pre-twisting bobbin (12), wherein a groove (121) for bearing nano zinc oxide particle gel liquid (3) is formed in the top of the pre-twisting bobbin (12), the polyester-nylon fiber (1) and the imitated silk fiber (2) penetrate through the groove (121), the groove (121) rotates to form a vortex in the groove (121), the vortex is positioned at the intersection of the polyester-nylon fiber (1) and the imitated silk fiber (2), the intersection of the polyester-nylon fiber (1) and the imitated silk fiber (2) is immersed in the nano zinc oxide particle gel liquid (3), the groove (121) is in a reverse taper shape, the groove (121) and the pre-twisting bobbin (12) are provided with through holes (122) for the polyester-nylon fiber (1) and the imitated silk fiber (2) to penetrate through to be in an eccentric manner, the groove (121) rotates, and the polyester-nylon fiber (1) and the imitated silk fiber (2) are extruded along the top of the groove (121) to form an eccentric tension;
s3, after the ice-like silk fiber (2) adsorbs the nano zinc oxide particle gel solution (3) from the groove (121), the nano zinc oxide particle gel solution is penetrated to a pre-twisting spindle (13) along with the polyester-nylon fiber (1) to be subjected to pre-twisting treatment, and heat generated in the pre-twisting process of the pre-twisting spindle (13) heats and dries the ice-like silk fiber (2) and the polyester-nylon fiber (1);
s4, after twisting the pre-twisted polyester-nylon fiber (1) and the twisted spindle (14) penetrating the ice-like silk fiber (2) to the lower side, adhering the nano zinc oxide particle gel solution (3) to the polyester-nylon fiber (1) and the ice-like silk fiber (2) and combining to form the polyester-nylon composite fiber (4).
2. The process for preparing the nano zinc oxide antibacterial and antiseptic polyester-nylon superfine fiber according to claim 1, which is characterized in that:
the polyester-nylon fiber (1) is formed by taking polyester fiber as a core wire and coating nylon fiber.
3. The process for preparing the nano zinc oxide antibacterial and antiseptic polyester-nylon superfine fiber according to claim 2, which is characterized in that:
the nylon fiber layer of the polyester-nylon fiber (1) is coated with a nano zinc oxide antibacterial layer.
4. The process for preparing the nano zinc oxide antibacterial and antiseptic polyester-nylon superfine fiber according to claim 1, which is characterized in that:
the nano zinc oxide particle gel solution (3) is prepared by a sol-gel method, and the particle size of zinc oxide seed crystal nano particles in the gel solution is 30-60nm.
5. The process for preparing nano zinc oxide antibacterial and antiseptic polyester-nylon superfine fiber according to claim 4, which is characterized in that:
the liquid phase of the nano zinc oxide particle gel solution (3) is any one of ethanol, water and isopropanol, and the concentration of the gel solution is 5.5-7.5mg/mL.
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