CN110578208A - nano fiber multi-component composite silk soft non-woven fabric and manufacturing method thereof - Google Patents
nano fiber multi-component composite silk soft non-woven fabric and manufacturing method thereof Download PDFInfo
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- CN110578208A CN110578208A CN201910858290.6A CN201910858290A CN110578208A CN 110578208 A CN110578208 A CN 110578208A CN 201910858290 A CN201910858290 A CN 201910858290A CN 110578208 A CN110578208 A CN 110578208A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
- D01D5/0084—Coating by electro-spinning, i.e. the electro-spun fibres are not removed from the collecting device but remain integral with it, e.g. coating of prostheses
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
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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
- D01F1/103—Agents inhibiting growth of microorganisms
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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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/009—Condensation or reaction polymers
- D04H3/011—Polyesters
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
- D04H3/147—Composite yarns or filaments
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- 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
- D10B2401/00—Physical properties
- D10B2401/02—Moisture-responsive characteristics
- D10B2401/022—Moisture-responsive characteristics hydrophylic
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- 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
- D10B2401/00—Physical properties
- D10B2401/06—Load-responsive characteristics
- D10B2401/061—Load-responsive characteristics elastic
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- 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
- D10B2401/00—Physical properties
- D10B2401/13—Physical properties anti-allergenic or anti-bacterial
Abstract
The invention relates to a nano-fiber multi-component composite silky non-woven fabric and a manufacturing method thereof, wherein the nano-fiber multi-component composite silky non-woven fabric comprises a nano-silk soft layer, a hydrophilic layer and a nano-antibacterial fiber layer which are arranged in a stacked mode, the nano-silk soft layer is composed of a plurality of nano-modified silky fibers, and the nano-modified silky fibers comprise, by mass, 55 ~ 65 parts of polypropylene master batches, 25 ~ 30 parts of polyester, 5 ~ 10 parts of elastomer mixtures and 3 ~ 5 parts of TiO2 nano-powder.
Description
Technical Field
the invention belongs to the technical field of non-woven fabrics, and particularly relates to a nanofiber multi-component composite silky non-woven fabric and a manufacturing method thereof.
Background
At present, a non-woven technology is a younger new technology with development prospect in the textile industry, and non-woven fabrics rapidly deepen into each application field of national economy with unique structure, variable process and other incomparable advantages of traditional textiles. Particularly in the field of medical care and health, nonwoven fabrics have a very wide development space.
The non-woven fabric is a fabric formed without spinning woven fabric, and is formed by orienting or randomly arranging textile short fibers or filaments to form a fiber web structure and then reinforcing the fiber web structure by mechanical, thermal bonding or chemical methods. It directly uses high polymer slice, short fiber or filament to form a novel fiber product with soft, air-permeable and plane structure through various fiber web forming methods and consolidation techniques. The non-woven fabric breaks through the traditional spinning principle, has the characteristics of short process flow, high production speed, high yield, low cost, wide application, multiple raw material sources and the like, is a new-generation environment-friendly material, and has the characteristics of moisture resistance, air permeability, flexibility, light weight, no combustion supporting, easy decomposition, no toxicity, no irritation, rich color, low price, recycling and the like.
The single-layer non-woven fabric cannot meet the market demand, the advantages of various materials can be exerted by compounding multiple materials, the defect of a single material is overcome, and the application range of the material is expanded. The composite technology is widely applied, wherein the most typical examples are the traditional spun-bonding method and the melt-blowing method, such as a multi-layer surgical clothes material, the surface layer is a waterproof layer, the middle layer is a breathable film with a barrier function, and the close-fitting inner layer is a soft and comfortable cotton fiber material.
However, the conventional nonwoven fabric has not yet satisfied some special or high-end requirements in terms of softness, and is often uncomfortable particularly in terms of softness such as materials for medical hygiene and paper diapers.
Chinese patent application No. CN201510418304.4 discloses a medical nonwoven fabric and a manufacturing method thereof, comprising the following components: 85-90 parts of thermoplastic elastomer, 6-12 parts of low-density polyethylene and 3-6 parts of color master batch particles, and the color master batch is single in component and limited in application range.
disclosure of Invention
the purpose of the invention is as follows: in order to overcome the defects, the invention aims to provide the nanofiber multi-component composite silk soft non-woven fabric and the manufacturing method thereof, the fabric is safe, environment-friendly and excellent in mechanical property, has good elasticity, compression resilience, curling property and fluffiness, has good strength and softness, is corrosion-resistant, heat-resistant and biocompatible, can photodegrade volatile pollutants and resist bacteria, has a good antibacterial effect, is free from the influence of various microorganisms and environmental factors, can remove mites and prevent mildew, has no irritation to human skin, can not generate adverse side effects, better meets the requirements of people for green and environment-friendly life, is simple in manufacturing method, high in flexibility and has a good development prospect.
the purpose of the invention is realized by the following technical scheme:
the nanofiber multi-component composite silk soft non-woven fabric is characterized by comprising a nanofiber soft layer, a hydrophilic layer and a nanofiber antibacterial fiber layer which are arranged in a stacked mode; the nano-silk soft layer comprises an upper nano-silk soft layer and a lower nano-silk soft layer, the upper nano-silk soft layer and the lower nano-silk soft layer are oppositely arranged, and the hydrophilic layer and the nano-antibacterial fiber layer are arranged between the upper nano-silk soft layer and the lower nano-silk soft layer; the hydrophilic layer comprises an upper hydrophilic layer and a lower hydrophilic layer, and the nano antibacterial fiber layer is arranged between the upper hydrophilic layer and the lower hydrophilic layer;The nano silk soft layer is composed of a plurality of nano modified silk soft fibers, and the nano modified silk soft fibers are composed of the following components in parts by weight: 55-65 parts of polypropylene master batch, 25-30 parts of polyester, 5-10 parts of elastomer mixture and TiO23-5 parts of nano powder.
the nanometer modified silk soft fiber provided by the invention takes the polypropylene master batch as a melt-blown raw material, the polypropylene master batch is nontoxic, odorless, tasteless, light in weight, excellent in mechanical property, good in chemical stability, not easy to oxidize, high in melting point up to 164-170 ℃, heat-resistant and capable of being used in an environment at about 100 ℃. Particularly, the fineness range of polypropylene melt-blown is 2-15 mu m, fibers can be intertwined with one another to form a three-dimensional net structure, and the fiber net has better surface attraction. The nanometer modified silk soft fiber also comprises polyester, compared with other fibers, the polyester fiber has stronger light resistance, wear resistance and strength, and the polyester fiber has excellent heat setting performance, better corrosion resistance, good heat resistance and moderate rebound resilience. The elastomer mixture enhances the softness and elasticity of the fabric, so that the fiber has better mechanical properties. TiO22The nano powder has strong photocatalytic activity, good chemical stability, excellent photocatalytic activity, safety, no toxicity and good biocompatibility, and can photodegrade volatile pollutants and resist bacteria.
Further, the nanofiber multi-component composite silk soft non-woven fabric is made of three-dimensional curled hollow polyester, and the specification of the polyester is 6.00dtex multiplied by 32 mm.
The polyester is three-dimensional curled hollow polyester, and has the advantages of light resistance, wear resistance and strength, excellent heat setting performance, better corrosion resistance, good heat resistance and moderate rebound resilience, and the polyester staple fibers with hollow structures of the cavities are three-dimensionally curled in the space so as to have multi-directionality, so that the material has good elasticity, compression rebound resilience, curling performance and fluffiness and has good strength and softness.
Further, the above-mentioned nanofiber multicomponent composite filament soft nonwoven fabric, the TiO2Nano powder in weight portion ofThe following components: p25TiO280-95 parts of silver-loaded TiO25-10 parts.
The TiO is2Nanopowder, in P25TiO2Predominantly, P25TiO2the composite material is composed of anatase and rutile mixed phases with the weight ratio of about 71/29, the particle size is 21nm, the composite material has a large specific surface area, can generate superoxide radicals and hydroxyl radicals with strong activity when receiving light, and can catalyze and oxidize volatile organic matters, so that the effect of degrading pollutants is achieved, and organic matters in cells can be catalyzed and oxidized when meeting bacteria, so that the effect of killing the bacteria is achieved. However, P25TiO2although the product has good sterilization effect, the product can only play a role under the condition of ultraviolet illumination, and the silver-loaded TiO with the particle size of 30nm is added in the product2greatly improve TiO content2the antibacterial property of the nano powder is not influenced, and the P25TiO is not influenced2Photocatalytic activity of (1).
further, the nanofiber multi-component composite silk soft non-woven fabric comprises the following components in parts by mass: 75-85 parts of nano-scale elastomer particles, 5-10 parts of flexible master batches, 1-5 parts of blending agents and 1-5 parts of polypropylene.
Further, the hydrophilic layer of the multi-component nanofiber composite silk soft nonwoven fabric comprises the following components in parts by weight: 55-85 parts of polypropylene and 15-45 parts of hydrophilic agent; the hydrophilic agent is a reaction liquid prepared from dopamine, ethylenediamine and ammonium persulfate in a concentration ratio of 2:1: 1.
polypropylene is placed in a reaction solution prepared from dopamine, ethylenediamine and ammonium persulfate according to the concentration ratio of 2:1:1, the mixture is uniformly mixed, in an aqueous solution, dopamine is oxidized by an oxidant ammonium persulfate to generate dopamine quinone, then, the dopamine quinone is cyclized and oxidized and rearranged to form oligomer or 5, 6-dihydroxyindole, the oligomer or the 5, 6-dihydroxyindole and polyamine are subjected to Michael addition or Schiff base reaction to generate polydopamine, the polydopamine forms adhesive force with the surface of the polypropylene through hydrogen bond action and is attached to the surface of the polypropylene, and spinning is carried out through a nano spider electrostatic spinning machine to obtain a hydrophilic layer with high hydrophilicity.
Further, the nano antibacterial fiber layer of the multi-component composite silk soft nonwoven fabric of the nano fibers comprises the following components in parts by weight: 70-75 parts of polypropylene, 10-15 parts of an antibacterial agent, 5-10 parts of a mite removing agent, 5-10 parts of a mildew preventive, 2-3 parts of a blending agent and 1-2 parts of a curing agent.
The nano antibacterial fiber layer is good in antibacterial effect, free of influence of various microorganisms and environmental factors, capable of removing mites and preventing mildew, free of irritation to human skin and adverse side effects, capable of meeting the requirements of people for green and environment-friendly life and good in development prospect.
Further, the antibacterial agent is a nano magnesium-based antibacterial agent which is prepared by compounding brucite with a grain size of 1250 meshes, brucite with a grain size of 2500 meshes and brucite with a grain size of 5000 meshes according to a mass ratio of 1:1: 1.
Brucite is a cheap and easily-obtained environment-friendly magnesium-based mineral resource, does not produce secondary pollution in the processing and application processes, and has the main component of Mg (OH)2，Mg(OH)2The crystal surface of (2) has oxygen vacancy, which can generate ROS, and the ROS with strong oxidizing property can cause oxidative damage to microorganisms, finally leads to the death of the microorganisms, and has good antibacterial performance. In addition, the brucite also contains CaO and Fe2O3component (C) CaO and Fe2O3Besides a certain antibacterial effect, the surface of brucite is easier to enrich ROS with strong oxidizing property, so that the brucite has high-efficiency antibacterial performance. Because brucite powder is irregular in shape and large in porosity when being mixed with other components in a single grain size ratio, the nano magnesium-based antibacterial agent is low in coverage rate and low in antibacterial rate, and when the nano magnesium-based antibacterial agent is prepared by compounding the brucite with the grain size of 1250 meshes, the brucite with the grain size of 2500 meshes and the brucite with the grain size of 5000 meshes according to the mass ratio of 1:1:1, the antibacterial effect is best.
Further, in the nanofiber multicomponent composite silk soft nonwoven fabric, the mite removing agent is an XHX extract; the mildew preventive is an SCZ extract.
the mite removing agent and the mildew preventive are both natural plant traditional Chinese medicine extracts, the mite removing agent and the mildew preventive are safe and environment-friendly, the XHX extract is derived from fennel fruits, the main component of the XHX extract is trans-anethole, and the second component is limonene and XHX ketone. The XHX extract can inhibit the growth and reproduction of mites, has the poisoning effect on the mites, makes the mites coma, shrink, dehydrate, break and die, and particularly has strong poisoning effect on worm eggs; the SCZ is named as litsea cubeba, litsea cubeba and the like, the components with higher relative content in the SCZ are acyclic monoterpene oxygen-containing derivatives (Z) -citral, (E) -citral and citral, wherein the citral can inhibit the synthesis of polysaccharide components in the fungal wall by damaging cell membranes to cause the swelling, dissolution and even necrosis of organelles, and the SCZ is most sensitive to escherichia coli, aspergillus niger, penicillium and saccharomyces and has strong inhibiting effect.
the invention also relates to the nanofiber multicomponent composite silky non-woven fabric and a manufacturing method thereof, and the manufacturing method comprises the following steps:
(1) Preparing a nano silk soft layer: according to the weight parts of the formula, the polypropylene master batch and the polyester are respectively heated, melted and plasticized by a screw extruder; after passing through a screw extruder, the elastomer mixture, TiO is added2The nano powder passes through a second screw extruder again; the nano modified silk soft fiber is metered by a metering pump and conveyed to a special double-component die head, the melt is uniformly extruded through a nano hole to obtain the nano modified silk soft fiber, the nano modified silk soft fiber enters a drafting device after being cooled by cooling air, the nano modified silk soft fiber is sucked into the drafting device under the negative pressure action of the drafting device, and a cloth cover is formed on a net surface under the auxiliary action of a suction fan to obtain the nano multi-component silk soft layer;
(2) Preparing a nano antibacterial fiber layer: heating and melting the polypropylene according to the mass parts of the formula, sequentially adding the antibacterial agent, the mite removing agent, the mildew preventive, the blending agent and the curing agent, fully mixing and stirring the mixture by using an ultrasonic oscillator to obtain a mixture, and then drying the mixture at constant temperature; heating, melting and plasticizing the dried mixture by a screw extruder, metering by a metering pump, conveying to a die head, extruding through holes with uniform melt to obtain the nano antibacterial fibers, cooling by cooling air, and then feeding into a drafting device, wherein the nano antibacterial fibers are sucked into the drafting device under the negative pressure action of the drafting device to form a cloth cover under the auxiliary action of a suction fan, so as to obtain a nano antibacterial fiber layer;
(3) preparation of hydrophilic layer: according to the formula, the polypropylene is placed in the hydrophilic agent in parts by weight, and the mixture is magnetically stirred for 5 hours until the solution is uniformly mixed to obtain a mixed solution; the mixed solution is placed in a closed storage tank of a nano spider electrostatic spinning machine instrument, the nano antibacterial fiber layer is placed on the surface of a receiving device of the nano spider electrostatic spinning machine instrument, the closed storage tank moves back and forth, nano-scale hydrophilic fibers are continuously sprayed out, and the nano antibacterial fiber layer is uniformly sprayed on the front side of the nano antibacterial fiber layer to obtain an upper hydrophilic layer; turning over the nano antibacterial fiber layer, enabling the closed storage tank to move back and forth, continuously spraying nano hydrophilic fibers, and uniformly spraying the nano hydrophilic fibers on the reverse side of the nano antibacterial fiber layer to obtain a lower hydrophilic layer; finally, placing the mixture in a vacuum oven to dry for 3 hours, wherein the temperature of the oven is set to be 30 ℃;
(4) Hot rolling and compounding: and (3) carrying out hot rolling compounding on the nano-silk soft layer and the nano-antibacterial fiber layer with the upper hydrophilic layer and the lower hydrophilic layer through two heated rollers to obtain the nano-fiber multi-component composite silk soft non-woven fabric.
and (3) the nano spider electrostatic spinning machine is selected for spinning, because the nano spider electrostatic spinning machine is free liquid surface electrostatic spinning, jet flow is formed on the liquid surface spontaneously, the spinning is expanded from point to line, the assistance of a needle or a nozzle is not needed, the efficiency is higher compared with the traditional electrostatic spinning, and the method is suitable for industrialization. The continuous nano-scale hydrophilic fibers are sprayed to be more uniformly sprayed on the surface of the nano-antibacterial fiber layer, and the sprayed nano-scale hydrophilic fibers still have a little residual viscous solution, so that the nano-scale hydrophilic fibers can be well adhered to the melt-blown surface; the patterns of the roller in the step (4) are customized dot patterns, and can well accord with the multi-component physical properties of the multi-component nanofiber composite silk soft non-woven fabric.
further, in the above nanofiber multicomponent composite silky nonwoven fabric and the manufacturing method thereof, the elastomer mixture of the step (1) is heated by heat radiation according to the mass parts of the formula, and the nano-scale elastomer particles are heated to a fluid state without liquefaction; then, adding the soft master batch, the blender and the polypropylene, and uniformly stirring under the condition that the temperature is kept unchanged to obtain a mixture; and finally cooling the mixture to obtain the elastomer mixture.
The nano-scale elastomer is heated by heat radiation, so that the specific property of the nano-scale elastomer can be ensured not to be damaged; the mixing time after adding the soft masterbatch, the blending agent and the polypropylene is determined by the total amount, and then when cooling the mixture, the mixture is ensured not to be precipitated.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention discloses a nanofiber multi-component composite silk soft non-woven fabric, which comprises a nanofiber soft layer, a hydrophilic layer and a nano antibacterial fiber layer which are arranged in a stacked mode, has excellent mechanical property, has good elasticity, compression resilience, curling property and fluffiness, has good strength and flexibility, is corrosion-resistant and heat-resistant, has good biocompatibility, can photodegrade volatile pollutants and resist bacteria, has good antibacterial effect, is free from the influence of various microorganisms and environmental factors, simultaneously has mite removal and mildew prevention, has good hydrophilicity, has no irritation to human skin, can not generate adverse side effects, and better meets the requirements of people on green and environment-friendly life;
(2) The manufacturing method of the nanofiber multi-component composite silk soft non-woven fabric is simple, has high flexibility, meets the requirements of different occasions, and has good development prospect.
drawings
Fig. 1 is a schematic structural diagram of a nanofiber multicomponent composite silky nonwoven fabric according to the present invention;
In the figure: the nano-antibacterial fabric comprises a nano-silk soft layer 1, an upper nano-silk soft layer 11, a lower nano-silk soft layer 12, a hydrophilic layer 2, an upper hydrophilic layer 21, a lower hydrophilic layer 22 and a nano-antibacterial fiber layer 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to specific experimental data and fig. 1, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following embodiments provide a nanofiber multicomponent composite silky nonwoven fabric and a manufacturing method thereof, as shown in fig. 1, the nanofiber multicomponent composite silky nonwoven fabric comprises a nanofiber flexible layer 1, a hydrophilic layer 2 and a nanofiber layer 3 which are arranged in a stacked manner; the nano silk flexible layer 1 comprises an upper nano silk flexible layer 11 and a lower nano silk flexible layer 12, the upper nano silk flexible layer 11 and the lower nano silk flexible layer 12 are oppositely arranged, and the hydrophilic layer 2 and the nano antibacterial fiber layer 3 are arranged between the upper nano silk flexible layer 11 and the lower nano silk flexible layer 12; the hydrophilic layer 2 comprises an upper hydrophilic layer 21 and a lower hydrophilic layer 22, and the nano antibacterial fiber layer 3 is arranged between the upper hydrophilic layer 21 and the lower hydrophilic layer 22; the nano silk soft layer 1 is composed of a plurality of nano modified silk soft fibers, and the nano modified silk soft fibers are composed of the following components in parts by weight: 55-65 parts of polypropylene master batch, 25-30 parts of polyester, 5-10 parts of elastomer mixture and TiO23-5 parts of nano powder.
Further, the polyester is three-dimensional curled hollow polyester, and the specification of the polyester is 6.00dtex multiplied by 32 mm. The TiO is2The nano powder comprises the following components in parts by weight: p25TiO280-95 parts of silver-loaded TiO25-10 parts.
Further, the elastomer mixture comprises the following components in parts by weight: 75-85 parts of nano-scale elastomer particles, 5-10 parts of flexible master batches, 1-5 parts of blending agents and 1-5 parts of polypropylene.
And the hydrophilic layer 2 is composed of the following components in parts by weight: 55-85 parts of polypropylene and 15-45 parts of hydrophilic agent; the hydrophilic agent is a reaction liquid prepared from dopamine, ethylenediamine and ammonium persulfate in a concentration ratio of 2:1: 1.
In addition, the nano antibacterial fiber layer 3 is composed of the following components in parts by weight: 70-75 parts of polypropylene, 10-15 parts of an antibacterial agent, 5-10 parts of a mite removing agent, 5-10 parts of a mildew preventive, 2-3 parts of a blending agent and 1-2 parts of a curing agent.
Further, the antibacterial agent is a nano magnesium-based antibacterial agent which is prepared by compounding brucite with a grain size of 1250 meshes, brucite with a grain size of 2500 meshes and brucite with a grain size of 5000 meshes according to a mass ratio of 1:1: 1. The mite removing agent is an XHX extract; the mildew preventive is an SCZ extract.
example 1
Preparing a nano silk soft layer:
(1) The elastomer mixture comprises the following components in parts by weight: 80 parts of nano-scale elastomer particles, 10 parts of flexible master batches, 5 parts of a blending agent and 5 parts of polypropylene; carrying out thermal radiation heating on the nano-scale elastomer particles in parts by weight, and heating to a fluid state without liquefaction; then, adding the soft master batch, the blender and the polypropylene, and uniformly stirring under the condition that the temperature is kept unchanged to obtain a mixture; finally cooling the mixture to obtain the elastomer mixture;
(2) The nanometer modified silk soft fiber comprises the following components in parts by weight: 65 parts of polypropylene master batch, 25 parts of polyester, 10 parts of elastomer mixture and TiO25 parts of nano powder; respectively heating, melting and plasticizing the polypropylene master batch and the polyester by a screw extruder; after passing through a screw extruder, the elastomer mixture, TiO is added2Nanopowder, wherein said TiO2The nano powder comprises the following components in parts by weight: p25TiO290 portions of silver-loaded TiO210 parts, and passing through a second screw extruder again; the nano modified silk soft fiber is metered by a metering pump and conveyed to a special double-component die head, the melt is uniformly extruded through a nano hole to obtain the nano modified silk soft fiber, the nano modified silk soft fiber enters a drafting device after being cooled by cooling air, the nano modified silk soft fiber is sucked into the drafting device under the negative pressure action of the drafting device, and a cloth cover is formed on a net surface under the auxiliary action of a suction fan to obtain the nano multi-component silk soft layer 1;
Preparing a nano antibacterial fiber layer:
(1) The nano antibacterial fiber layer 3 comprises the following components in parts by weight: 75 parts of polypropylene, 10 parts of an antibacterial agent, 10 parts of an acarus killing agent, 10 parts of a mildew preventive, 2 parts of a blending agent and 1 part of a curing agent; heating and melting the polypropylene, sequentially adding the antibacterial agent, the mite removing agent, the mildew preventive, the blending agent and the curing agent, fully mixing and stirring by an ultrasonic oscillator to obtain a mixture, and then drying the mixture at constant temperature;
(2) Heating, melting and plasticizing the dried mixture by a screw extruder, metering by a metering pump, conveying to a die head, extruding through holes with uniform melt to obtain the nano antibacterial fibers, cooling by cooling air, and then feeding into a drafting device, wherein the nano antibacterial fibers are sucked into the drafting device under the negative pressure action of the drafting device to form a cloth cover under the auxiliary action of a suction fan, so as to obtain a nano antibacterial fiber layer 3;
preparation of hydrophilic layer:
(1) the hydrophilic layer 2 is composed of the following components in parts by weight: 60 parts of polypropylene and 40 parts of hydrophilic agent; the hydrophilic agent is a reaction liquid prepared from dopamine, ethylenediamine and ammonium persulfate in a concentration ratio of 2:1: 1. Placing the polypropylene into the hydrophilic agent, and magnetically stirring for 5 hours until the solution is uniformly mixed to obtain a mixed solution; the mixed solution is placed in a closed storage tank of a nano spider electrostatic spinning machine instrument,
(2) Placing the nano antibacterial fiber layer 3 on the surface of a receiving device of a nano spider electrostatic spinning machine instrument, enabling the closed storage tank to move back and forth, continuously spraying nano-scale hydrophilic fibers, and uniformly spraying the nano-scale hydrophilic fibers on the front surface of the nano antibacterial fiber layer 3 to obtain an upper hydrophilic layer 21;
(3) Turning over the nano antibacterial fiber layer 3, enabling the closed storage tank to move back and forth, continuously spraying nano hydrophilic fibers, and uniformly spraying the nano hydrophilic fibers on the reverse side of the nano antibacterial fiber layer 3 to obtain a lower hydrophilic layer 22;
(4) Finally, placing the mixture in a vacuum oven to dry for 3 hours, wherein the temperature of the oven is set to be 30 ℃;
Hot rolling and compounding: and (3) carrying out hot rolling compounding on the nano silk soft layer 1 and the nano antibacterial fiber layer 3 with the upper hydrophilic layer 21 and the lower hydrophilic layer 22 through two heated rollers to obtain the nano fiber multi-component composite silk soft non-woven fabric. The patterns of the roller are customized dot patterns, and can well match the physical properties of the components of the nanofiber multi-component composite silk soft non-woven fabric.
Example 2
Preparing a nano silk soft layer:
(1) The elastomer mixture comprises the following components in parts by weight: 85 parts of nano-scale elastomer particles, 8 parts of flexible master batches, 2 parts of a blending agent and 5 parts of polypropylene; carrying out thermal radiation heating on the nano-scale elastomer particles in parts by weight, and heating to a fluid state without liquefaction; then, adding the soft master batch, the blender and the polypropylene, and uniformly stirring under the condition that the temperature is kept unchanged to obtain a mixture; finally cooling the mixture to obtain the elastomer mixture;
(2) The nanometer modified silk soft fiber comprises the following components in parts by weight: 60 parts of polypropylene master batch, 25 parts of polyester, 5 parts of elastomer mixture and TiO25 parts of nano powder; respectively heating, melting and plasticizing the polypropylene master batch and the polyester by a screw extruder; after passing through a screw extruder, the elastomer mixture, TiO is added2Nanopowder, wherein said TiO2The nano powder comprises the following components in parts by weight: p25TiO290 portions of silver-loaded TiO210 parts, and passing through a second screw extruder again; the nano modified silk soft fiber is metered by a metering pump and conveyed to a special double-component die head, the melt is uniformly extruded through a nano hole to obtain the nano modified silk soft fiber, the nano modified silk soft fiber enters a drafting device after being cooled by cooling air, the nano modified silk soft fiber is sucked into the drafting device under the negative pressure action of the drafting device, and a cloth cover is formed on a net surface under the auxiliary action of a suction fan to obtain the nano multi-component silk soft layer 1;
Preparing a nano antibacterial fiber layer:
(1) The nano antibacterial fiber layer 3 comprises the following components in parts by weight: 70 parts of polypropylene, 9 parts of an antibacterial agent, 9 parts of a mite removing agent, 9 parts of a mildew preventive, 2 parts of a blending agent and 1 part of a curing agent; heating and melting the polypropylene, sequentially adding the antibacterial agent, the mite removing agent, the mildew preventive, the blending agent and the curing agent, fully mixing and stirring by an ultrasonic oscillator to obtain a mixture, and then drying the mixture at constant temperature;
(2) Heating, melting and plasticizing the dried mixture by a screw extruder, metering by a metering pump, conveying to a die head, extruding through holes with uniform melt to obtain the nano antibacterial fibers, cooling by cooling air, and then feeding into a drafting device, wherein the nano antibacterial fibers are sucked into the drafting device under the negative pressure action of the drafting device to form a cloth cover under the auxiliary action of a suction fan, so as to obtain a nano antibacterial fiber layer 3;
Preparation of hydrophilic layer:
(1) the hydrophilic layer 2 is composed of the following components in parts by weight: 70 parts of polypropylene and 30 parts of hydrophilic agent; the hydrophilic agent is a reaction liquid prepared from dopamine, ethylenediamine and ammonium persulfate in a concentration ratio of 2:1: 1. Placing the polypropylene into the hydrophilic agent, and magnetically stirring for 5 hours until the solution is uniformly mixed to obtain a mixed solution; the mixed solution is placed in a closed storage tank of a nano spider electrostatic spinning machine instrument;
(2) Placing the nano antibacterial fiber layer 3 on the surface of a receiving device of a nano spider electrostatic spinning machine instrument, enabling the closed storage tank to move back and forth, continuously spraying nano-scale hydrophilic fibers, and uniformly spraying the nano-scale hydrophilic fibers on the front surface of the nano antibacterial fiber layer 3 to obtain an upper hydrophilic layer 21;
(3) turning over the nano antibacterial fiber layer 3, enabling the closed storage tank to move back and forth, continuously spraying nano hydrophilic fibers, and uniformly spraying the nano hydrophilic fibers on the reverse side of the nano antibacterial fiber layer 3 to obtain a lower hydrophilic layer 22;
(4) finally, placing the mixture in a vacuum oven to dry for 3 hours, wherein the temperature of the oven is set to be 30 ℃;
hot rolling and compounding: and (3) carrying out hot rolling compounding on the nano silk soft layer 1 and the nano antibacterial fiber layer 3 with the upper hydrophilic layer 21 and the lower hydrophilic layer 22 through two heated rollers to obtain the nano fiber multi-component composite silk soft non-woven fabric. The patterns of the roller are customized dot patterns, and can well match the physical properties of the components of the nanofiber multi-component composite silk soft non-woven fabric.
Example 3
Preparing a nano silk soft layer:
(1) the elastomer mixture comprises the following components in parts by weight: 78 parts of nano-scale elastomer particles, 10 parts of flexible master batch, 5 parts of blending agent and 5 parts of polypropylene; carrying out thermal radiation heating on the nano-scale elastomer particles in parts by weight, and heating to a fluid state without liquefaction; then, adding the soft master batch, the blender and the polypropylene, and uniformly stirring under the condition that the temperature is kept unchanged to obtain a mixture; finally cooling the mixture to obtain the elastomer mixture;
(2) the nanometer modified silk soft fiber comprises the following components in parts by weight: 62 parts of polypropylene master batch, 28 parts of polyester, 5 parts of elastomer mixture and TiO25 parts of nano powder; respectively heating, melting and plasticizing the polypropylene master batch and the polyester by a screw extruder; after passing through a screw extruder, the elastomer mixture, TiO is added2nanopowder, wherein said TiO2The nano powder comprises the following components in parts by weight: p25TiO290 portions of silver-loaded TiO210 parts, and passing through a second screw extruder again; the nano modified silk soft fiber is metered by a metering pump and conveyed to a special double-component die head, the melt is uniformly extruded through a nano hole to obtain the nano modified silk soft fiber, the nano modified silk soft fiber enters a drafting device after being cooled by cooling air, the nano modified silk soft fiber is sucked into the drafting device under the negative pressure action of the drafting device, and a cloth cover is formed on a net surface under the auxiliary action of a suction fan to obtain the nano multi-component silk soft layer 1;
Preparing a nano antibacterial fiber layer:
(1) The nano antibacterial fiber layer 3 comprises the following components in parts by weight: 70 parts of polypropylene, 15 parts of an antibacterial agent, 12 parts of a mite removing agent, 8 parts of a mildew preventive, 3 parts of a blending agent and 3 parts of a curing agent; heating and melting the polypropylene, sequentially adding the antibacterial agent, the mite removing agent, the mildew preventive, the blending agent and the curing agent, fully mixing and stirring by an ultrasonic oscillator to obtain a mixture, and then drying the mixture at constant temperature;
(2) heating, melting and plasticizing the dried mixture by a screw extruder, metering by a metering pump, conveying to a die head, extruding through holes with uniform melt to obtain the nano antibacterial fibers, cooling by cooling air, and then feeding into a drafting device, wherein the nano antibacterial fibers are sucked into the drafting device under the negative pressure action of the drafting device to form a cloth cover under the auxiliary action of a suction fan, so as to obtain a nano antibacterial fiber layer 3;
Preparation of hydrophilic layer:
(5) The hydrophilic layer 2 is composed of the following components in parts by weight: 75 parts of polypropylene and 25 parts of hydrophilic agent; the hydrophilic agent is a reaction liquid prepared from dopamine, ethylenediamine and ammonium persulfate in a concentration ratio of 2:1: 1. Placing the polypropylene into the hydrophilic agent, and magnetically stirring for 5 hours until the solution is uniformly mixed to obtain a mixed solution; the mixed solution is placed in a closed storage tank of a nano spider electrostatic spinning machine instrument;
(6) Placing the nano antibacterial fiber layer 3 on the surface of a receiving device of a nano spider electrostatic spinning machine instrument, enabling the closed storage tank to move back and forth, continuously spraying nano-scale hydrophilic fibers, and uniformly spraying the nano-scale hydrophilic fibers on the front surface of the nano antibacterial fiber layer 3 to obtain an upper hydrophilic layer 21;
(7) Turning over the nano antibacterial fiber layer 3, enabling the closed storage tank to move back and forth, continuously spraying nano hydrophilic fibers, and uniformly spraying the nano hydrophilic fibers on the reverse side of the nano antibacterial fiber layer 3 to obtain a lower hydrophilic layer 22;
(8) Finally, placing the mixture in a vacuum oven to dry for 3 hours, wherein the temperature of the oven is set to be 30 ℃;
hot rolling and compounding: and (3) carrying out hot rolling compounding on the nano silk soft layer 1 and the nano antibacterial fiber layer 3 with the upper hydrophilic layer 21 and the lower hydrophilic layer 22 through two heated rollers to obtain the nano fiber multi-component composite silk soft non-woven fabric. The patterns of the roller are customized dot patterns, and can well match the physical properties of the components of the nanofiber multi-component composite silk soft non-woven fabric.
example 4
Preparing a nano silk soft layer:
(1) the elastomer mixture comprises the following components in parts by weight: 75 parts of nano-scale elastomer particles, 10 parts of flexible master batches, 1 part of blending agent and 5 parts of polypropylene; carrying out thermal radiation heating on the nano-scale elastomer particles in parts by weight, and heating to a fluid state without liquefaction; then, adding the soft master batch, the blender and the polypropylene, and uniformly stirring under the condition that the temperature is kept unchanged to obtain a mixture; finally cooling the mixture to obtain the elastomer mixture;
(2) The nanometer modified silk soft fiber comprises the following components in parts by weight: 55 parts of polypropylene master batch, 30 parts of polyester, 10 parts of elastomer mixture and TiO25 parts of nano powder; respectively heating, melting and plasticizing the polypropylene master batch and the polyester by a screw extruder; after passing through a screw extruder, the elastomer mixture, TiO is added2Nanopowder, wherein said TiO2the nano powder comprises the following components in parts by weight: p25TiO290 portions of silver-loaded TiO210 parts, and passing through a second screw extruder again; the nano modified silk soft fiber is metered by a metering pump and conveyed to a special double-component die head, the melt is uniformly extruded through a nano hole to obtain the nano modified silk soft fiber, the nano modified silk soft fiber enters a drafting device after being cooled by cooling air, the nano modified silk soft fiber is sucked into the drafting device under the negative pressure action of the drafting device, and a cloth cover is formed on a net surface under the auxiliary action of a suction fan to obtain the nano multi-component silk soft layer 1;
Preparing a nano antibacterial fiber layer:
(3) The nano antibacterial fiber layer 3 comprises the following components in parts by weight: 70 parts of polypropylene, 10 parts of an antibacterial agent, 15 parts of an acarus killing agent, 5 parts of a mildew preventive, 3 parts of a blending agent and 2 parts of a curing agent; heating and melting the polypropylene, sequentially adding the antibacterial agent, the mite removing agent, the mildew preventive, the blending agent and the curing agent, fully mixing and stirring by an ultrasonic oscillator to obtain a mixture, and then drying the mixture at constant temperature;
(4) heating, melting and plasticizing the dried mixture by a screw extruder, metering by a metering pump, conveying to a die head, extruding through holes with uniform melt to obtain the nano antibacterial fibers, cooling by cooling air, and then feeding into a drafting device, wherein the nano antibacterial fibers are sucked into the drafting device under the negative pressure action of the drafting device to form a cloth cover under the auxiliary action of a suction fan, so as to obtain a nano antibacterial fiber layer 3;
Preparation of hydrophilic layer:
(1) the hydrophilic layer 2 is composed of the following components in parts by weight: 80 parts of polypropylene and 20 parts of hydrophilic agent; the hydrophilic agent is a reaction liquid prepared from dopamine, ethylenediamine and ammonium persulfate in a concentration ratio of 2:1: 1. Placing the polypropylene into the hydrophilic agent, and magnetically stirring for 5 hours until the solution is uniformly mixed to obtain a mixed solution; the mixed solution is placed in a closed storage tank of a nano spider electrostatic spinning machine instrument;
(2) placing the nano antibacterial fiber layer 3 on the surface of a receiving device of a nano spider electrostatic spinning machine instrument, enabling the closed storage tank to move back and forth, continuously spraying nano-scale hydrophilic fibers, and uniformly spraying the nano-scale hydrophilic fibers on the front surface of the nano antibacterial fiber layer 3 to obtain an upper hydrophilic layer 21;
(3) Turning over the nano antibacterial fiber layer 3, enabling the closed storage tank to move back and forth, continuously spraying nano hydrophilic fibers, and uniformly spraying the nano hydrophilic fibers on the reverse side of the nano antibacterial fiber layer 3 to obtain a lower hydrophilic layer 22;
(4) finally, placing the mixture in a vacuum oven to dry for 3 hours, wherein the temperature of the oven is set to be 30 ℃;
hot rolling and compounding: and (3) carrying out hot rolling compounding on the nano silk soft layer 1 and the nano antibacterial fiber layer 3 with the upper hydrophilic layer 21 and the lower hydrophilic layer 22 through two heated rollers to obtain the nano fiber multi-component composite silk soft non-woven fabric. The patterns of the roller are customized dot patterns, and can well match the physical properties of the components of the nanofiber multi-component composite silk soft non-woven fabric.
Example 5
preparing a nano silk soft layer:
(1) the elastomer mixture comprises the following components in parts by weight: 80 parts of nano-scale elastomer particles, 10 parts of flexible master batches, 1 part of blending agent and 5 parts of polypropylene; carrying out thermal radiation heating on the nano-scale elastomer particles in parts by weight, and heating to a fluid state without liquefaction; then, adding the soft master batch, the blender and the polypropylene, and uniformly stirring under the condition that the temperature is kept unchanged to obtain a mixture; finally cooling the mixture to obtain the elastomer mixture;
(2) The nanometer modified silk soft fiber comprises the following components in parts by weight: 55 parts of polypropylene master batch, 30 parts of polyester, 10 parts of elastomer mixture and TiO25 parts of nano powder; respectively heating, melting and plasticizing the polypropylene master batch and the polyester by a screw extruder; after passing through a screw extruder, the elastomer mixture, TiO is added2Nanopowder, wherein said TiO2The nano powder comprises the following components in parts by weight: p25TiO290 portions of silver-loaded TiO210 parts, and passing through a second screw extruder again; the nano modified silk soft fiber is metered by a metering pump and conveyed to a special double-component die head, the melt is uniformly extruded through a nano hole to obtain the nano modified silk soft fiber, the nano modified silk soft fiber enters a drafting device after being cooled by cooling air, the nano modified silk soft fiber is sucked into the drafting device under the negative pressure action of the drafting device, and a cloth cover is formed on a net surface under the auxiliary action of a suction fan to obtain the nano multi-component silk soft layer 1;
preparing a nano antibacterial fiber layer:
(1) The nano antibacterial fiber layer 3 comprises the following components in parts by weight: 70 parts of polypropylene, 15 parts of an antibacterial agent, 10 parts of a mite removing agent, 10 parts of a mildew preventive, 3 parts of a blending agent and 3 parts of a curing agent; heating and melting the polypropylene, sequentially adding the antibacterial agent, the mite removing agent, the mildew preventive, the blending agent and the curing agent, fully mixing and stirring by an ultrasonic oscillator to obtain a mixture, and then drying the mixture at constant temperature;
(2) heating, melting and plasticizing the dried mixture by a screw extruder, metering by a metering pump, conveying to a die head, extruding through holes with uniform melt to obtain the nano antibacterial fibers, cooling by cooling air, and then feeding into a drafting device, wherein the nano antibacterial fibers are sucked into the drafting device under the negative pressure action of the drafting device to form a cloth cover under the auxiliary action of a suction fan, so as to obtain a nano antibacterial fiber layer 3;
Preparation of hydrophilic layer:
(1) The hydrophilic layer 2 is composed of the following components in parts by weight: 85 parts of polypropylene and 15 parts of hydrophilic agent; the hydrophilic agent is a reaction liquid prepared from dopamine, ethylenediamine and ammonium persulfate in a concentration ratio of 2:1: 1. Placing the polypropylene into the hydrophilic agent, and magnetically stirring for 5 hours until the solution is uniformly mixed to obtain a mixed solution; the mixed solution is placed in a closed storage tank of a nano spider electrostatic spinning machine instrument;
(2) placing the nano antibacterial fiber layer 3 on the surface of a receiving device of a nano spider electrostatic spinning machine instrument, enabling the closed storage tank to move back and forth, continuously spraying nano-scale hydrophilic fibers, and uniformly spraying the nano-scale hydrophilic fibers on the front surface of the nano antibacterial fiber layer 3 to obtain an upper hydrophilic layer 21;
(3) Turning over the nano antibacterial fiber layer 3, enabling the closed storage tank to move back and forth, continuously spraying nano hydrophilic fibers, and uniformly spraying the nano hydrophilic fibers on the reverse side of the nano antibacterial fiber layer 3 to obtain a lower hydrophilic layer 22;
(4) Finally, placing the mixture in a vacuum oven to dry for 3 hours, wherein the temperature of the oven is set to be 30 ℃;
Hot rolling and compounding: and (3) carrying out hot rolling compounding on the nano silk soft layer 1 and the nano antibacterial fiber layer 3 with the upper hydrophilic layer 21 and the lower hydrophilic layer 22 through two heated rollers to obtain the nano fiber multi-component composite silk soft non-woven fabric. The patterns of the roller are customized dot patterns, and can well match the physical properties of the components of the nanofiber multi-component composite silk soft non-woven fabric.
Effect verification:
The nanofiber multicomponent composite velour nonwoven fabrics obtained in the above examples 1, 2, 3, 4 and 5 were subjected to performance tests according to the following criteria, and the test results are shown in table 1.
the antibacterial index refers to GB/T20944-2007; intensity reference GB/T24218.3-2010; the softness refers to GB/T8942-2002; thickness referred to FZ/T60004-; the extensibility is referred to GB/T24218.3-2010; for hydrophilic time, refer to FZ/T60017-1993; the hydrophilic magnification refers to FZ/T60017-1993; the mildew-proof index refers to GB/T24346-2009 (grades 0, 1, 2, 3 and 4, wherein the grade 0 is the best).
TABLE 1 sample Performance test results
the invention has many applications, and the above description is only a preferred embodiment of the invention. It should be noted that the above examples are only for illustrating the present invention, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications can be made without departing from the principles of the invention and these modifications are to be considered within the scope of the invention.
Claims (10)
1. the nanofiber multi-component composite silk soft non-woven fabric is characterized by comprising a nanofiber soft layer (1), a hydrophilic layer (2) and a nano antibacterial fiber layer (3) which are arranged in a stacked mode, wherein the nanofiber soft layer (1) comprises an upper nanofiber soft layer (11) and a lower nanofiber soft layer (12), the upper nanofiber soft layer (11) and the lower nanofiber soft layer (12) are arranged oppositely, the hydrophilic layer (2) and the nano antibacterial fiber layer (3) are arranged between the upper nanofiber soft layer (11) and the lower nanofiber soft layer (12), the hydrophilic layer (2) comprises an upper hydrophilic layer (21) and a lower hydrophilic layer (22), the nano antibacterial fiber layer (3) is arranged between the upper hydrophilic layer (21) and the lower hydrophilic layer (22), the nanofiber soft layer (1) is composed of a plurality of nano modified silk soft fibers, and the nano modified silk soft fibers are composed of polypropylene master batch 3665 parts, polyester elastomer 3625 parts, polyester elastomer mixture 395 parts and TiO 3 parts by mass, and nano modified TiO2 parts.
2. the nanofiber multicomponent composite velour nonwoven fabric according to claim 1, wherein the polyester is a three-dimensional crimp hollow polyester, and the polyester has a specification of 6.00dtex x 32 mm.
3. the nanofiber multicomponent composite velour nonwoven according to claim 1, wherein the TiO is2The nano powder comprises the following components in parts by weight: p25TiO280 ~ 95 parts of silver-carrying TiO25 ~ 10 parts.
4. The nanofiber multicomponent composite silky nonwoven fabric as claimed in claim 1, wherein the elastomer mixture comprises, by mass, 75 ~ 85 parts of nano-scale elastomer particles, 5 ~ 10 parts of flexible master batches, 1 ~ 5 parts of a blending agent and 1 ~ 5 parts of polypropylene.
5. The nanofiber multicomponent composite silk soft nonwoven fabric according to claim 1, wherein the hydrophilic layer (2) comprises 55 ~ 85 parts of polypropylene and 15 ~ 45 parts of hydrophilic agent by mass, and the hydrophilic agent is a reaction liquid prepared from dopamine, ethylenediamine and ammonium persulfate in a concentration ratio of 2:1: 1.
6. The nanofiber multi-component composite silk soft nonwoven fabric according to claim 1, wherein the nanofiber layer (3) comprises, by mass, 70 ~ 75 parts of polypropylene, 10 ~ 15 parts of an antibacterial agent, 5 ~ 10 parts of a mite removing agent, 5 ~ 10 parts of a mildew preventive, 2 ~ 3 parts of a blending agent and 1 ~ 2 parts of a curing agent.
7. the nanofiber multicomponent composite silky nonwoven fabric as claimed in claim 6, wherein the antibacterial agent is a nano magnesium-based antibacterial agent, and the nano magnesium-based antibacterial agent is prepared by compounding brucite with a grain size of 1250 meshes, brucite with a grain size of 2500 meshes and brucite with a grain size of 5000 meshes according to a mass ratio of 1:1: 1.
8. the nanofiber multicomponent composite silky nonwoven fabric according to claim 6, wherein the miticide is an XHX extract; the mildew preventive is an SCZ extract.
9. the method for manufacturing the nanofiber multicomponent composite velour nonwoven according to any one of claims 1 to 8, characterized by comprising the steps of:
(1) preparing a nano silk soft layer: according to the weight parts of the formula, the polypropylene master batch and the polyester are respectively heated, melted and plasticized by a screw extruder; after passing through a screw extruder, the elastomer mixture, TiO is added2The nano powder passes through a second screw extruder again; the nano modified silk soft fiber is metered by a metering pump and conveyed to a special double-component die head, the melt is uniformly extruded through a nano hole to obtain the nano modified silk soft fiber, the nano modified silk soft fiber enters a drafting device after being cooled by cooling air, the nano modified silk soft fiber is sucked into the drafting device under the negative pressure action of the drafting device, and a cloth cover is formed on a net surface under the auxiliary action of a suction fan to obtain the nano multi-component silk soft layer (1);
(2) Preparing a nano antibacterial fiber layer: heating and melting the polypropylene according to the mass parts of the formula, sequentially adding the antibacterial agent, the mite removing agent, the mildew preventive, the blending agent and the curing agent, fully mixing and stirring the mixture by using an ultrasonic oscillator to obtain a mixture, and then drying the mixture at constant temperature; heating, melting and plasticizing the dried mixture by a screw extruder, metering by a metering pump, conveying to a die head, extruding through holes with uniform melt to obtain the nano antibacterial fibers, cooling by cooling air, then feeding into a drafting device, sucking the nano antibacterial fibers into the drafting device under the negative pressure action of the drafting device, and forming a cloth cover under the auxiliary action of a suction fan to obtain the nano antibacterial fiber layer (3);
(3) preparation of hydrophilic layer: according to the formula, the polypropylene is placed in the hydrophilic agent in parts by weight, and the mixture is magnetically stirred for 5 hours until the solution is uniformly mixed to obtain a mixed solution; the mixed solution is placed in a closed storage tank of a nano spider electrostatic spinning machine instrument, the nano antibacterial fiber layer (3) is placed on the surface of a receiving device of the nano spider electrostatic spinning machine instrument, the closed storage tank moves back and forth to continuously spray nano hydrophilic fibers, and the nano antibacterial fiber layer is uniformly sprayed and covered on the front surface of the nano antibacterial fiber layer (3) to obtain an upper hydrophilic layer (21); turning over the nano antibacterial fiber layer (3), enabling the closed storage tank to move back and forth, continuously spraying nano hydrophilic fibers, and uniformly spraying the nano hydrophilic fibers on the reverse side of the nano antibacterial fiber layer (3) to obtain a lower hydrophilic layer (22); finally, placing the mixture in a vacuum oven to dry for 3 hours, wherein the temperature of the oven is set to be 30 ℃;
(4) hot rolling and compounding: and (3) performing hot rolling compounding on the nano silk soft layer (1) and the nano antibacterial fiber layer (3) with the upper hydrophilic layer (21) and the lower hydrophilic layer (22) through two heated rollers to obtain the nano fiber multi-component composite silk soft non-woven fabric.
10. the method of claim 9, wherein the elastomer mixture of step (1) is heated by thermal radiation to a fluid and non-liquefied state by the parts by weight of the formulation, wherein the nano-sized elastomer particles are heated by thermal radiation; then, adding the soft master batch, the blender and the polypropylene, and uniformly stirring under the condition that the temperature is kept unchanged to obtain a mixture; and finally cooling the mixture to obtain the elastomer mixture.
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Application publication date: 20191217 |