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CN110714272A - Degradable high-flexibility non-woven fabric and manufacturing method thereof - Google Patents

Degradable high-flexibility non-woven fabric and manufacturing method thereof Download PDF

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Publication number
CN110714272A
CN110714272A CN201910970910.5A CN201910970910A CN110714272A CN 110714272 A CN110714272 A CN 110714272A CN 201910970910 A CN201910970910 A CN 201910970910A CN 110714272 A CN110714272 A CN 110714272A
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parts
surface layer
layer
nano
master batch
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朱云斌
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Jiangsu Sheng Spinning Nano Materials Polytron Technologies Inc
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Jiangsu Sheng Spinning Nano Materials Polytron Technologies Inc
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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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • 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
    • 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
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
    • 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
    • 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
    • D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
    • 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
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonwoven Fabrics (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention relates to a degradable and high-flexibility non-woven fabric and a manufacturing method thereof, wherein the degradable and high-flexibility non-woven fabric comprises an anti-ultraviolet surface layer, a nano-performance layer and a cotton soft foundation layer which are arranged in a stacked mode, the anti-ultraviolet surface layer, the nano-performance layer and the cotton soft foundation layer are mutually fused, and the nano-performance layer comprises, by mass, 65 ~ 70 parts of polypropylene, 10 ~ 15 parts of an antibacterial agent, 8 ~ 10 parts of color master batches, 8 ~ 10 parts of an elastomer, 8 ~ 10 parts of soft master batches, 5 ~ 10 parts of a flame retardant, 2 ~ 3 parts of a blending agent, 1 ~ 2 parts of a polymer dispersing agent and 1 ~ 2 parts of a curing agent.

Description

Degradable high-flexibility non-woven fabric and manufacturing method thereof
Technical Field
The invention belongs to the technical field of non-woven fabrics, and particularly relates to a degradable high-flexibility non-woven fabric and a manufacturing method thereof.
Background
At present, a non-woven technology is a new technology with a development prospect in the textile industry, and non-woven fabrics rapidly enter into various application fields of national economy due to incomparable superiority of traditional textiles such as unique structures, variable processes and the like, and particularly in the field of medical treatment and health, the non-woven 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 nonwoven fabrics of the prior art are relatively single in functionality, and cannot meet some special requirements, or high-end requirements. Therefore, in order to overcome the problem of the limited range of application of nonwoven fabrics in the prior art, it is necessary to expand the functionality of nonwoven fabrics, and for example, in the field of use of materials for medical hygiene, paper diapers, and the like, it is possible to further improve degradability and flexibility and to improve comfort.
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 a degradable and high-flexibility non-woven fabric and a manufacturing method thereof, wherein the non-woven fabric has the advantages of good biocompatibility, degradability, no toxicity, no odor, light weight, excellent mechanical property, good chemical stability, high flexibility, good antibacterial effect, flame retardance, ultraviolet resistance, no irritation to human skin, simple manufacturing method, high flexibility and good development prospect.
The purpose of the invention is realized by the following technical scheme:
the degradable high-flexibility non-woven fabric is characterized by comprising an ultraviolet-resistant surface layer, a nano-performance layer and a cotton soft foundation layer which are arranged in a stacked mode, wherein the ultraviolet-resistant surface layer, the nano-performance layer and the cotton soft foundation layer are sintered mutually; the nanometer performance layer comprises the following components in parts by weight: 65-70 parts of polypropylene, 10-15 parts of an antibacterial agent, 8-10 parts of a color master batch, 8-10 parts of an elastomer, 8-10 parts of a soft master batch, 5-10 parts of a flame retardant, 2-3 parts of a blending agent, 1-2 parts of a high molecular dispersing agent and 1-2 parts of a curing agent.
The nano performance layer has good biocompatibility, is degradable, has good antibacterial effect, is free from the influence of various microorganisms and environmental factors, is flame-retardant, has no irritation to human skin, does not produce adverse side effects, and better meets the requirements of people on green and environment-friendly life.
Further, in the degradable and high-flexibility non-woven fabric, the antibacterial agent is a mixture of sodium alginate and folium isatidis extract; the flame retardant is one or a mixture of aluminum hydroxide, decabromodiphenylethane, brominated polystyrene and red phosphorus.
The antibacterial agent disclosed by the invention adopts a mixture of sodium alginate and folium isatidis extracts, has good biocompatibility, is non-toxic and low in cost, wherein the folium isatidis extracts are natural plant traditional Chinese medicine extracts, are safe and environment-friendly, have excellent antibacterial property and endotoxin resisting activity, and are compounded together through good crosslinking property of alginate.
Further, the degradable and high-flexibility non-woven fabric comprises the following components in parts by weight: 75-85 parts of polypropylene short fiber material, 15-20 parts of organic silicon softening agent, 10-15 parts of extinction master batch, 5-10 parts of elastomer and 1-5 parts of auxiliary agent.
Further, the degradable and high-flexibility non-woven fabric and the organic silicon softening agent comprise the following components in parts by weight: 50-60 parts of epoxy-terminated polyether silicone oil and 10-12 parts of amino polyether ED-60010.
The invention also relates to the degradable and high-softness non-woven fabric and a manufacturing method thereof, wherein the method comprises the following steps:
(1) preparing an ultraviolet-resistant surface layer:
1) adding polypropylene, extinction master batches and color master batches into a material tank, and directly passing through a small-hole die after passing through a screw extruder to obtain a long continuous raw material strip; the raw material strips are subjected to hot shaping, water bath cooling, cold air drying and cutting to obtain the raw particles; then uniformly mixing a certain amount of elastomer and the soft master batch in a rolling box to obtain a mixture;
2) heating, melting and plasticizing the raw granules and the mixture by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the extinction master batch and the color master batch, and the mixture passes through a second screw extruder; the nano-filaments are sucked into the drafting device under the negative pressure action of the drafting device, and an ultrathin cloth cover is formed on the net surface under the auxiliary action of a suction fan, so that a primary surface layer is obtained;
3) carrying out ultrasonic treatment on the primary surface layer in an ethanol solution for 30min, repeatedly washing the primary surface layer with deionized water, drying the primary surface layer in a vacuum oven at 60 ℃, soaking the cleaned primary surface layer in a dopamine buffer solution, carrying out oscillation reaction in a constant-temperature water bath for 20-24 h, taking out the primary surface layer, repeatedly washing with deionized water, drying, soaking the primary surface layer in an anti-ultraviolet modification solution, reacting for 8-12 h at room temperature, repeatedly washing with deionized water, and drying to obtain the anti-ultraviolet surface layer;
(2) preparing a nano performance layer;
(3) a cotton soft foundation layer was prepared.
The surface layer of the invention takes polypropylene as a main melt-blown raw material, when the polypropylene is taken as the main raw material, the fiber produced by the melt-blown method has very fine diameter, and has the characteristics of large specific surface area, small aperture, large porosity and the like, but has some obvious defects, namely, poor impact resistance and notch sensitivity, and because polypropylene belongs to nonpolar macromolecules, the surface energy is low, and because a large amount of methyl side chains exist in polypropylene molecular chains, hydrogen on tertiary carbon is easy to generate oxidation reaction and age under ultraviolet irradiation, thereby influencing the service life of the polypropylene.
Therefore, the extinction master batch, the color master batch, the elastomer and the soft master batch are used as auxiliary aids, so that the problem of poor impact resistance can be solved, the first-level surface layer which is non-toxic, odorless, tasteless, light in weight, excellent in mechanical property and good in chemical stability can be obtained, the melting point of the first-level surface layer is as high as 164-170 ℃, heat resistance is realized, the first-level surface layer can be used in an environment with the temperature of about 100 ℃, and high flexibility is realized.
However, the polypropylene, which is the main melt-blown raw material of the primary surface layer, has low surface energy, and because a large number of methyl side chains exist in a polypropylene molecular chain and hydrogen on tertiary carbon is easy to undergo oxidation reaction and age under ultraviolet irradiation, the service life of the surface layer of the degradable and high-flexibility non-woven fabric provided by the invention is shortened, and ultraviolet resistance modification is needed. According to the invention, a surface modification method is adopted, so that a new function can be endowed to the surface of the substrate without changing the performance of the substrate body, the surface modification method is simple, convenient and feasible, the primary surface layer is modified by dopamine, the dopamine buffer solution can have super strong adhesion capability to various materials only under simple and mild reaction conditions, the surface energy is improved, and then the ultraviolet-resistant surface layer is obtained by performing ultraviolet-resistant modification through the ultraviolet-resistant modification solution.
Further, in the method for manufacturing a degradable and highly flexible nonwoven fabric, the dopamine buffer solution in the step (1) is a 2g/L dopamine solution prepared by using a Tris-HCl buffer solution as a solvent, and the pH value of the Tris-HCl buffer solution is 8.5; the ultraviolet resistant modified liquid is 0.1mol/L (NH)4)TiF6And 0.3mol/L of H3BO3The mixed solution of (1); the pH value of the ultraviolet-resistant modifying liquid is 3.8.
(NH) of the ultraviolet-resistant modified liquid4)TiF6At H3BO3Can be hydrolyzed to generate TiO in solution2Nano particles are reduced to poly-dopamine o-phthalic groups on the primary surface layer after finishing by dopamine buffer solution, and the nano particles are used as a seed layer to promote TiO2By homogeneous deposition, a compact and irreversible layer of TiO is formed on the primary surface2And (c) laminating to obtain the ultraviolet resistant surface layer.
Further, in the method for producing a degradable and highly flexible nonwoven fabric, the elastomer in the step (1) is composed of the following components in parts by weight: 80 parts of nano-scale elastomer master batch, 7 parts of flexible master batch, 2 parts of blending agent and 1 part of polyacrylonitrile.
Further, in the method for producing a degradable and highly flexible nonwoven fabric, the step (2) includes the steps of: according to the proportion, heating and melting the polypropylene raw material, adding the color master batch, the elastomer, the soft master batch and the high molecular dispersing agent, fully mixing the materials with the help of an ultrasonic oscillator, and then heating, melting and plasticizing the materials by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the antibacterial agent, the flame retardant, the blending agent and the curing agent, and then passes through a second screw extruder; and (3) accurately metering by a metering pump, conveying the melt to a nano-hole die head, extruding the melt through a uniform hole, cooling the melt by cooling air, then feeding the cooled melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming an ultrathin cloth cover on a net surface under the auxiliary action of a suction fan to obtain the nano-performance layer.
Further, in the method for producing a degradable and highly flexible nonwoven fabric, the step (3) includes the steps of:
(1) preparing an organic silicon softening agent: adding amino polyether ED-600 and epoxy terminated polyether silicone oil into an isopropanol solvent according to the proportion, uniformly stirring, reacting at 80 ℃ for 6 hours, carrying out reduced pressure distillation at 60 ℃ for 2 hours after the reaction is completed, removing the isopropanol solvent, and finally preparing the organic silicon softening agent;
(2) preparing a cotton soft foundation layer: mixing the polypropylene short fiber material, the organic silicon softening agent, the delustering master batch, the elastomer and the auxiliary agent according to the proportion; melting at 300 ℃ under a vacuum condition, adding the toughness special adjusting liquid, uniformly stirring, and filtering at a high temperature to obtain a molten stock solution; the precision metering by the screw extruder and metering pump is delivered to the die. And extruding the melt through the uniform holes, cooling the melt by cooling air, then feeding the melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming a cloth cover on the net curtain under the auxiliary action of a suction fan to obtain the cotton soft foundation layer.
As one of the important auxiliaries for textiles, softeners are capable of imparting softness and smoothness to fabrics, so that they have a comfortable feel. At present, the softening agent in the prior art has poor stability, easy yellowing, poor hydrophilicity and the like, and does not have good comprehensive use performance, so that the application of the softening agent on textiles is limited to a greater extent. Compared with the organosilicon softener product on the market, the organosilicon softener of the invention has-NH on polyether amine of amino polyether ED-6002The epoxy polyether silicone oil and the epoxy groups on the epoxy polyether silicone oil are subjected to ring-opening addition reaction, the main chain of the molecule has a hydrophobic organic silicon chain segment and a hydrophilic polyether chain segment, the fabric can be endowed with comfort, and the amino can anchor the molecules of the softening agent on the surface of the fiber, so that the fabric has good comprehensive use performance.
Further, the method for producing a degradable and highly flexible nonwoven fabric, further comprises the steps of: and (3) performing hot rolling compounding on the ultraviolet-resistant surface layer, the nano performance layer and the cotton soft base layer through a single-sided roller after the temperature rise is finished, wherein the roller patterns are customized dot patterns, and thus the degradable high-flexibility non-woven fabric is obtained.
Compared with the prior art, the invention has the following beneficial effects:
(1) the degradable and high-flexibility non-woven fabric comprises an ultraviolet-resistant surface layer, a nano-performance layer and a cotton soft foundation layer which are arranged in a stacked mode, wherein the ultraviolet-resistant surface layer, the nano-performance layer and the cotton soft foundation layer are mutually sintered, the bonding performance is good, the defect of a single non-woven fabric material in the prior art is overcome, the application range of the non-woven fabric is expanded, and the application prospect is wide;
(2) the ultraviolet-resistant surface layer disclosed by the invention is non-toxic, odorless, tasteless, light in weight, excellent in mechanical property, good in chemical stability, high in melting point up to 164-170 ℃, heat-resistant, capable of being used in an environment of about 100 ℃, high in flexibility, ultraviolet-resistant and prolonged in service life;
(3) the nano performance layer disclosed by the invention has good biocompatibility, is degradable, has a good antibacterial effect, is free from the influence of various microorganisms and environmental factors, is flame-retardant, has no irritation to human skin, does not generate adverse side effects, and better meets the requirements of people on green and environment-friendly life;
(4) the cotton soft base layer disclosed by the invention is excellent in mechanical property, has high softness, good stability, difficult yellowing and good hydrophilicity while having good elasticity, compression resilience, curling property and fluffiness, and has good comprehensive use performance;
(5) the manufacturing method of the degradable high-flexibility 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 degradable, highly flexible nonwoven fabric according to the present invention;
in the figure: an ultraviolet-resistant surface layer 1, a nanometer performance layer 2 and a cotton soft foundation 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 degradable, high-flexibility nonwoven fabric and a manufacturing method thereof, as shown in fig. 1, the degradable, high-flexibility nonwoven fabric includes an ultraviolet-resistant surface layer 1, a nano-performance layer 2 and a cotton soft base layer 3, which are stacked, and the ultraviolet-resistant surface layer 1, the nano-performance layer 2 and the cotton soft base layer 3 are fused with each other; the nano performance layer 2 comprises the following components in parts by weight: 65-70 parts of polypropylene, 10-15 parts of an antibacterial agent, 8-10 parts of a color master batch, 8-10 parts of an elastomer, 8-10 parts of a soft master batch, 5-10 parts of a flame retardant, 2-3 parts of a blending agent, 1-2 parts of a high molecular dispersing agent and 1-2 parts of a curing agent.
Further, the antibacterial agent is a mixture of sodium alginate and folium isatidis extract; the flame retardant is one or a mixture of aluminum hydroxide, decabromodiphenylethane, brominated polystyrene and red phosphorus.
Further, the cotton soft base layer 3 is composed of the following components in parts by weight: 75-85 parts of polypropylene short fiber material, 15-20 parts of organic silicon softening agent, 10-15 parts of extinction master batch, 5-10 parts of elastomer and 1-5 parts of auxiliary agent.
And the organosilicon softener comprises the following components in parts by weight: 50-60 parts of epoxy-terminated polyether silicone oil and 10-12 parts of amino polyether ED-60010.
Example 1
Preparation of the ultraviolet-resistant surface layer 1:
(1) adding polypropylene, extinction master batches and color master batches into a material tank, and directly passing through a small-hole die after passing through a screw extruder to obtain a long continuous raw material strip; the raw material strips are subjected to hot shaping, water bath cooling, cold air drying and cutting to obtain the raw particles; then uniformly mixing a certain amount of elastomer and the soft master batch in a rolling box to obtain a mixture;
(2) heating, melting and plasticizing the raw granules and the mixture by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the extinction master batch and the color master batch, and the mixture passes through a second screw extruder; the nano-filaments are sucked into the drafting device under the negative pressure action of the drafting device, and an ultrathin cloth cover is formed on the net surface under the auxiliary action of a suction fan, so that a primary surface layer is obtained;
(3) carrying out ultrasonic treatment on the primary surface layer in an ethanol solution for 30min, repeatedly washing the primary surface layer by using deionized water, drying the primary surface layer in a vacuum oven at 60 ℃, soaking the cleaned primary surface layer in a dopamine buffer solution, carrying out oscillation reaction in a constant-temperature water bath for 24h, then taking out the primary surface layer, repeatedly washing by using deionized water, drying, soaking the primary surface layer in an anti-ultraviolet modification solution, reacting for 8-12 h at room temperature, repeatedly washing by using deionized water, and drying to obtain an anti-ultraviolet surface layer 1;
the elastomer in the step (1) comprises the following components in parts by weight: 80 parts of nano-scale elastomer master batch, 7 parts of flexible master batch, 2 parts of blending agent and 1 part of polyacrylonitrile; the dopamine buffer solution in the step (3) is a 2g/L dopamine solution prepared by taking a Tris-HCl buffer solution as a solvent, and the pH value of the Tris-HCl buffer solution is 8.5; the ultraviolet resistant modified liquid is 0.1mol/L (NH)4)TiF6And 0.3mol/L of H3BO3The mixed solution of (1); the pH value of the ultraviolet-resistant modifying liquid is 3.8.
Preparation of the nano-performance layer 2:
(1) the nano performance layer 2 comprises the following components in parts by weight: 65 parts of polypropylene, 15 parts of an antibacterial agent, 10 parts of color master batch, 8 parts of an elastomer, 8 parts of soft master batch, 7 parts of a flame retardant, 2 parts of a blender, 2 parts of a high molecular dispersing agent and 1 part of a curing agent; the antibacterial agent is a mixture of sodium alginate and folium isatidis extract; the flame retardant is a mixture of aluminum hydroxide and decabromodiphenylethane.
(2) According to the proportion, heating and melting the polypropylene raw material, adding the color master batch, the elastomer, the soft master batch and the high molecular dispersing agent, fully mixing the materials with the help of an ultrasonic oscillator, and then heating, melting and plasticizing the materials by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the antibacterial agent, the flame retardant, the blending agent and the curing agent, and then passes through a second screw extruder; and (2) accurately metering by a metering pump, conveying the melt to a nano-hole die head, extruding the melt through a uniform hole, cooling the melt by cooling air, then feeding the cooled melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming an ultrathin cloth cover on a net surface under the auxiliary action of a suction fan to obtain the nano performance layer 2.
Preparation of the cotton soft base layer 3:
(1) preparing an organic silicon softening agent: the organic silicon softening agent comprises the following components in parts by weight: adding 50 parts of epoxy-terminated polyether silicone oil and 10 parts of amino polyether ED-60010 into isopropanol solvent, uniformly stirring, reacting at 80 ℃ for 6 hours, carrying out reduced pressure distillation at 60 ℃ for 2 hours after complete reaction, removing the isopropanol solvent, and finally preparing the organic silicon softening agent;
(2) preparation of the cotton soft base layer 3: 85 parts of polypropylene short fiber material, 15 parts of organic silicon softening agent, 15 parts of extinction master batch, 5 parts of elastomer and 2 parts of auxiliary agent. Mixing the polypropylene short fiber material, the organic silicon softening agent, the extinction master batch, the elastomer and the auxiliary agent in proportion; melting at 300 ℃ under a vacuum condition, adding the toughness special adjusting liquid, uniformly stirring, and filtering at a high temperature to obtain a molten stock solution; the precision metering by the screw extruder and metering pump is delivered to the die. And extruding the melt through the uniform holes, cooling the melt by cooling air, then feeding the melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming a cloth cover on the net curtain under the auxiliary action of a suction fan to obtain the cotton soft foundation layer 3.
Hot rolling and compounding:
and (3) performing hot rolling compounding on the ultraviolet-resistant surface layer 1, the nano performance layer 2 and the cotton soft base layer 3 through a single-sided roller after the temperature rise is completed, wherein the roller patterns are customized dot patterns, and thus the degradable high-flexibility non-woven fabric is obtained.
Example 2
Preparation of the ultraviolet-resistant surface layer 1:
(1) adding polypropylene, extinction master batches and color master batches into a material tank, and directly passing through a small-hole die after passing through a screw extruder to obtain a long continuous raw material strip; the raw material strips are subjected to hot shaping, water bath cooling, cold air drying and cutting to obtain the raw particles; then uniformly mixing a certain amount of elastomer and the soft master batch in a rolling box to obtain a mixture;
(2) heating, melting and plasticizing the raw granules and the mixture by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the extinction master batch and the color master batch, and the mixture passes through a second screw extruder; the nano-filaments are sucked into the drafting device under the negative pressure action of the drafting device, and an ultrathin cloth cover is formed on the net surface under the auxiliary action of a suction fan, so that a primary surface layer is obtained;
(3) carrying out ultrasonic treatment on the primary surface layer in an ethanol solution for 30min, repeatedly washing the primary surface layer by using deionized water, drying the primary surface layer in a vacuum oven at 60 ℃, soaking the cleaned primary surface layer in a dopamine buffer solution, carrying out oscillation reaction in a constant-temperature water bath for 24h, then taking out the primary surface layer, repeatedly washing by using deionized water, drying, soaking the primary surface layer in an anti-ultraviolet modification solution, reacting for 8-12 h at room temperature, repeatedly washing by using deionized water, and drying to obtain an anti-ultraviolet surface layer 1;
the elastomer in the step (1) comprises the following components in parts by weight: 80 parts of nano-scale elastomer master batch, 7 parts of flexible master batch, 2 parts of blending agent and 1 part of polyacrylonitrile; the dopamine buffer solution in the step (3) is a 2g/L dopamine solution prepared by taking Tris-HCl buffer solution as a solvent, and the Tris-HCl buffer solutionThe pH of the solution was 8.5; the ultraviolet resistant modified liquid is 0.1mol/L (NH)4)TiF6And 0.3mol/L of H3BO3The mixed solution of (1); the pH value of the ultraviolet-resistant modifying liquid is 3.8.
Preparation of the nano-performance layer 2:
(1) the nano performance layer 2 comprises the following components in parts by weight: 68 parts of polypropylene, 12 parts of an antibacterial agent, 10 parts of color master batch, 10 parts of an elastomer, 8 parts of soft master batch, 5 parts of a flame retardant, 2 parts of a blender, 2 parts of a high molecular dispersing agent and 1 part of a curing agent; the antibacterial agent is a mixture of sodium alginate and folium isatidis extract; the flame retardant is a mixture of aluminum hydroxide and brominated polystyrene.
(2) According to the proportion, heating and melting the polypropylene raw material, adding the color master batch, the elastomer, the soft master batch and the high molecular dispersing agent, fully mixing the materials with the help of an ultrasonic oscillator, and then heating, melting and plasticizing the materials by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the antibacterial agent, the flame retardant, the blending agent and the curing agent, and then passes through a second screw extruder; and (2) accurately metering by a metering pump, conveying the melt to a nano-hole die head, extruding the melt through a uniform hole, cooling the melt by cooling air, then feeding the cooled melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming an ultrathin cloth cover on a net surface under the auxiliary action of a suction fan to obtain the nano performance layer 2.
Preparation of the cotton soft base layer 3:
(1) preparing an organic silicon softening agent: the organic silicon softening agent comprises the following components in parts by weight: 60 parts of epoxy polyether-terminated silicone oil and 10 parts of amino polyether ED-60010, namely adding amino polyether ED-600 and epoxy polyether-terminated silicone oil into an isopropanol solvent, uniformly stirring, reacting at 80 ℃ for 6 hours, carrying out reduced pressure distillation at 60 ℃ for 2 hours after complete reaction, removing the isopropanol solvent, and finally preparing the organic silicon softening agent;
(2) preparation of the cotton soft base layer 3: 75 parts of polypropylene staple fiber material, 15 parts of organic silicon softening agent, 10 parts of extinction master batch, 5 parts of elastomer and 1 part of auxiliary agent, wherein the polypropylene staple fiber material, the organic silicon softening agent, the extinction master batch, the elastomer and the auxiliary agent are mixed in proportion; melting at 300 ℃ under a vacuum condition, adding the toughness special adjusting liquid, uniformly stirring, and filtering at a high temperature to obtain a molten stock solution; the precision metering by the screw extruder and metering pump is delivered to the die. And extruding the melt through the uniform holes, cooling the melt by cooling air, then feeding the melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming a cloth cover on the net curtain under the auxiliary action of a suction fan to obtain the cotton soft foundation layer 3.
Hot rolling and compounding:
and (3) performing hot rolling compounding on the ultraviolet-resistant surface layer 1, the nano performance layer 2 and the cotton soft base layer 3 through a single-sided roller after the temperature rise is completed, wherein the roller patterns are customized dot patterns, and thus the degradable high-flexibility non-woven fabric is obtained.
Example 3
Preparation of the ultraviolet-resistant surface layer 1:
(1) adding polypropylene, extinction master batches and color master batches into a material tank, and directly passing through a small-hole die after passing through a screw extruder to obtain a long continuous raw material strip; the raw material strips are subjected to hot shaping, water bath cooling, cold air drying and cutting to obtain the raw particles; then uniformly mixing a certain amount of elastomer and the soft master batch in a rolling box to obtain a mixture;
(2) heating, melting and plasticizing the raw granules and the mixture by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the extinction master batch and the color master batch, and the mixture passes through a second screw extruder; the nano-filaments are sucked into the drafting device under the negative pressure action of the drafting device, and an ultrathin cloth cover is formed on the net surface under the auxiliary action of a suction fan, so that a primary surface layer is obtained;
(3) carrying out ultrasonic treatment on the primary surface layer in an ethanol solution for 30min, repeatedly washing the primary surface layer by using deionized water, drying the primary surface layer in a vacuum oven at 60 ℃, soaking the cleaned primary surface layer in a dopamine buffer solution, carrying out oscillation reaction in a constant-temperature water bath for 24h, then taking out the primary surface layer, repeatedly washing by using deionized water, drying, soaking the primary surface layer in an anti-ultraviolet modification solution, reacting for 8-12 h at room temperature, repeatedly washing by using deionized water, and drying to obtain an anti-ultraviolet surface layer 1;
the elastomer in the step (1) comprises the following components in parts by weight: 80 parts of nano-scale elastomer master batch, 7 parts of flexible master batch, 2 parts of blending agent and 1 part of polyacrylonitrile; the dopamine buffer solution in the step (3) is a 2g/L dopamine solution prepared by taking a Tris-HCl buffer solution as a solvent, and the pH value of the Tris-HCl buffer solution is 8.5; the ultraviolet resistant modified liquid is 0.1mol/L (NH)4)TiF6And 0.3mol/L of H3BO3The mixed solution of (1); the pH value of the ultraviolet-resistant modifying liquid is 3.8.
Preparation of the nano-performance layer 2:
(1) the nano performance layer 2 comprises the following components in parts by weight: 70 parts of polypropylene, 10 parts of an antibacterial agent, 8 parts of color master batch, 8 parts of an elastomer, 10 parts of soft master batch, 10 parts of a flame retardant, 2 parts of a blender, 1 part of a high molecular dispersing agent and 1 part of a curing agent; the antibacterial agent is a mixture of sodium alginate and folium isatidis extract; the flame retardant is aluminum hydroxide.
(2) According to the proportion, heating and melting the polypropylene raw material, adding the color master batch, the elastomer, the soft master batch and the high molecular dispersing agent, fully mixing the materials with the help of an ultrasonic oscillator, and then heating, melting and plasticizing the materials by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the antibacterial agent, the flame retardant, the blending agent and the curing agent, and then passes through a second screw extruder; and (2) accurately metering by a metering pump, conveying the melt to a nano-hole die head, extruding the melt through a uniform hole, cooling the melt by cooling air, then feeding the cooled melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming an ultrathin cloth cover on a net surface under the auxiliary action of a suction fan to obtain the nano performance layer 2.
Preparation of the cotton soft base layer 3:
(1) preparing an organic silicon softening agent: the organic silicon softening agent comprises the following components in parts by weight: 55 parts of epoxy-terminated polyether silicone oil and 10 parts of amino polyether ED-60010, namely adding amino polyether ED-600 and epoxy-terminated polyether silicone oil into an isopropanol solvent, uniformly stirring, reacting at 80 ℃ for 6 hours, carrying out reduced pressure distillation at 60 ℃ for 2 hours after complete reaction, removing the isopropanol solvent, and finally preparing the organic silicon softening agent;
(2) preparation of the cotton soft base layer 3: 80 parts of polypropylene staple fiber material, 20 parts of organic silicon softening agent, 10 parts of extinction master batch, 10 parts of elastomer and 3 parts of auxiliary agent, wherein the polypropylene staple fiber material, the organic silicon softening agent, the extinction master batch, the elastomer and the auxiliary agent are mixed in proportion; melting at 300 ℃ under a vacuum condition, adding the toughness special adjusting liquid, uniformly stirring, and filtering at a high temperature to obtain a molten stock solution; the precision metering by the screw extruder and metering pump is delivered to the die. And extruding the melt through the uniform holes, cooling the melt by cooling air, then feeding the melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming a cloth cover on the net curtain under the auxiliary action of a suction fan to obtain the cotton soft foundation layer 3.
Hot rolling and compounding:
and (3) performing hot rolling compounding on the ultraviolet-resistant surface layer 1, the nano performance layer 2 and the cotton soft base layer 3 through a single-sided roller after the temperature rise is completed, wherein the roller patterns are customized dot patterns, and thus the degradable high-flexibility non-woven fabric is obtained.
Example 4
Preparation of the ultraviolet-resistant surface layer 1:
(1) adding polypropylene, extinction master batches and color master batches into a material tank, and directly passing through a small-hole die after passing through a screw extruder to obtain a long continuous raw material strip; the raw material strips are subjected to hot shaping, water bath cooling, cold air drying and cutting to obtain the raw particles; then uniformly mixing a certain amount of elastomer and the soft master batch in a rolling box to obtain a mixture;
(2) heating, melting and plasticizing the raw granules and the mixture by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the extinction master batch and the color master batch, and the mixture passes through a second screw extruder; the nano-filaments are sucked into the drafting device under the negative pressure action of the drafting device, and an ultrathin cloth cover is formed on the net surface under the auxiliary action of a suction fan, so that a primary surface layer is obtained;
(3) carrying out ultrasonic treatment on the primary surface layer in an ethanol solution for 30min, repeatedly washing the primary surface layer by using deionized water, drying the primary surface layer in a vacuum oven at 60 ℃, soaking the cleaned primary surface layer in a dopamine buffer solution, carrying out oscillation reaction in a constant-temperature water bath for 24h, then taking out the primary surface layer, repeatedly washing by using deionized water, drying, soaking the primary surface layer in an anti-ultraviolet modification solution, reacting for 8-12 h at room temperature, repeatedly washing by using deionized water, and drying to obtain an anti-ultraviolet surface layer 1;
the elastomer in the step (1) comprises the following components in parts by weight: 80 parts of nano-scale elastomer master batch, 7 parts of flexible master batch, 2 parts of blending agent and 1 part of polyacrylonitrile; the dopamine buffer solution in the step (3) is a 2g/L dopamine solution prepared by taking a Tris-HCl buffer solution as a solvent, and the pH value of the Tris-HCl buffer solution is 8.5; the ultraviolet resistant modified liquid is 0.1mol/L (NH)4)TiF6And 0.3mol/L of H3BO3The mixed solution of (1); the pH value of the ultraviolet-resistant modifying liquid is 3.8.
Preparation of the nano-performance layer 2:
(1) the nano performance layer 2 comprises the following components in parts by weight: 70 parts of polypropylene, 12 parts of an antibacterial agent, 10 parts of color master batch, 8 parts of an elastomer, 10 parts of soft master batch, 10 parts of a flame retardant, 3 parts of a blender, 1 part of a high molecular dispersing agent and 1 part of a curing agent; the antibacterial agent is a mixture of sodium alginate and folium isatidis extract; the flame retardant is decabromodiphenylethane.
(2) According to the proportion, heating and melting the polypropylene raw material, adding the color master batch, the elastomer, the soft master batch and the high molecular dispersing agent, fully mixing the materials with the help of an ultrasonic oscillator, and then heating, melting and plasticizing the materials by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the antibacterial agent, the flame retardant, the blending agent and the curing agent, and then passes through a second screw extruder; and (2) accurately metering by a metering pump, conveying the melt to a nano-hole die head, extruding the melt through a uniform hole, cooling the melt by cooling air, then feeding the cooled melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming an ultrathin cloth cover on a net surface under the auxiliary action of a suction fan to obtain the nano performance layer 2.
Preparation of the cotton soft base layer 3:
(1) preparing an organic silicon softening agent: the organic silicon softening agent comprises the following components in parts by weight: 58 parts of epoxy polyether-terminated silicone oil and 10 parts of amino polyether ED-60010, namely adding amino polyether ED-600 and epoxy polyether-terminated silicone oil into an isopropanol solvent, uniformly stirring, reacting at 80 ℃ for 6 hours, carrying out reduced pressure distillation at 60 ℃ for 2 hours after complete reaction, removing the isopropanol solvent, and finally preparing the organic silicon softening agent;
(2) preparation of the cotton soft base layer 3: 85 parts of polypropylene staple fiber material, 20 parts of organic silicon softening agent, 10 parts of extinction master batch, 5 parts of elastomer and 2 parts of auxiliary agent, wherein the polypropylene staple fiber material, the organic silicon softening agent, the extinction master batch, the elastomer and the auxiliary agent are mixed in proportion; melting at 300 ℃ under a vacuum condition, adding the toughness special adjusting liquid, uniformly stirring, and filtering at a high temperature to obtain a molten stock solution; the precision metering by the screw extruder and metering pump is delivered to the die. And extruding the melt through the uniform holes, cooling the melt by cooling air, then feeding the melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming a cloth cover on the net curtain under the auxiliary action of a suction fan to obtain the cotton soft foundation layer 3.
Hot rolling and compounding:
and (3) performing hot rolling compounding on the ultraviolet-resistant surface layer 1, the nano performance layer 2 and the cotton soft base layer 3 through a single-sided roller after the temperature rise is completed, wherein the roller patterns are customized dot patterns, and thus the degradable high-flexibility non-woven fabric is obtained.
Example 5
Preparation of the ultraviolet-resistant surface layer 1:
(1) adding polypropylene, extinction master batches and color master batches into a material tank, and directly passing through a small-hole die after passing through a screw extruder to obtain a long continuous raw material strip; the raw material strips are subjected to hot shaping, water bath cooling, cold air drying and cutting to obtain the raw particles; then uniformly mixing a certain amount of elastomer and the soft master batch in a rolling box to obtain a mixture;
(2) heating, melting and plasticizing the raw granules and the mixture by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the extinction master batch and the color master batch, and the mixture passes through a second screw extruder; the nano-filaments are sucked into the drafting device under the negative pressure action of the drafting device, and an ultrathin cloth cover is formed on the net surface under the auxiliary action of a suction fan, so that a primary surface layer is obtained;
(3) carrying out ultrasonic treatment on the primary surface layer in an ethanol solution for 30min, repeatedly washing the primary surface layer with deionized water, drying the primary surface layer in a vacuum oven at 60 ℃, soaking the cleaned primary surface layer in a dopamine buffer solution, carrying out oscillation reaction in a constant-temperature water bath for 20-24 h, taking out the primary surface layer, repeatedly washing with deionized water, drying, soaking the primary surface layer in an anti-ultraviolet modification solution, reacting for 8-12 h at room temperature, repeatedly washing with deionized water, and drying to obtain an anti-ultraviolet surface layer 1;
the elastomer in the step (1) comprises the following components in parts by weight: 80 parts of nano-scale elastomer master batch, 7 parts of flexible master batch, 2 parts of blending agent and 1 part of polyacrylonitrile; the dopamine buffer solution in the step (3) is a 2g/L dopamine solution prepared by taking a Tris-HCl buffer solution as a solvent, and the pH value of the Tris-HCl buffer solution is 8.5; the ultraviolet resistant modified liquid is 0.1mol/L (NH)4)TiF6And 0.3mol/L of H3BO3The mixed solution of (1); the pH value of the ultraviolet-resistant modifying liquid is 3.8.
Preparation of the nano-performance layer 2:
(1) the nano performance layer 2 comprises the following components in parts by weight: 65 parts of polypropylene, 15 parts of an antibacterial agent, 8 parts of color master batch, 10 parts of an elastomer, 8 parts of soft master batch, 10 parts of a flame retardant, 2 parts of a blender, 2 parts of a high molecular dispersing agent and 1 part of a curing agent; the antibacterial agent is a mixture of sodium alginate and folium isatidis extract; the flame retardant is a mixture of aluminum hydroxide, decabromodiphenylethane, brominated polystyrene and red phosphorus.
(2) According to the proportion, heating and melting the polypropylene raw material, adding the color master batch, the elastomer, the soft master batch and the high molecular dispersing agent, fully mixing the materials with the help of an ultrasonic oscillator, and then heating, melting and plasticizing the materials by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the antibacterial agent, the flame retardant, the blending agent and the curing agent, and then passes through a second screw extruder; and (2) accurately metering by a metering pump, conveying the melt to a nano-hole die head, extruding the melt through a uniform hole, cooling the melt by cooling air, then feeding the cooled melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming an ultrathin cloth cover on a net surface under the auxiliary action of a suction fan to obtain the nano performance layer 2.
Preparation of the cotton soft base layer 3:
(1) preparing an organic silicon softening agent: the organic silicon softening agent comprises the following components in parts by weight: adding 50 parts of epoxy-terminated polyether silicone oil and 10 parts of amino polyether ED-60010 into isopropanol solvent, uniformly stirring, reacting at 80 ℃ for 6 hours, carrying out reduced pressure distillation at 60 ℃ for 2 hours after complete reaction, removing the isopropanol solvent, and finally preparing the organic silicon softening agent;
(2) preparation of the cotton soft base layer 3: 75 parts of polypropylene short fiber material, 20 parts of organic silicon softening agent, 10 parts of extinction master batch, 10 parts of elastomer and 3 parts of auxiliary agent. Mixing the polypropylene short fiber material, the organic silicon softening agent, the extinction master batch, the elastomer and the auxiliary agent in proportion; melting at 300 ℃ under a vacuum condition, adding the toughness special adjusting liquid, uniformly stirring, and filtering at a high temperature to obtain a molten stock solution; the precision metering by the screw extruder and metering pump is delivered to the die. And extruding the melt through the uniform holes, cooling the melt by cooling air, then feeding the melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming a cloth cover on the net curtain under the auxiliary action of a suction fan to obtain the cotton soft foundation layer 3.
Hot rolling and compounding:
and (3) performing hot rolling compounding on the ultraviolet-resistant surface layer 1, the nano performance layer 2 and the cotton soft base layer 3 through a single-sided roller after the temperature rise is completed, wherein the roller patterns are customized dot patterns, and thus the degradable high-flexibility non-woven fabric is obtained.
Effect verification:
the degradable and highly flexible nonwoven fabrics obtained in examples 1, 2, 3, 4 and 5 were tested for their properties 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 ultraviolet resistance refers to GB/T18830-2002; the flame retardant properties are referred to GB/T5455-1997.
TABLE 1 sample Performance test results
Figure BDA0002232043520000221
Figure BDA0002232043520000231
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 degradable high-flexibility non-woven fabric is characterized by comprising an ultraviolet-resistant surface layer (1), a nanometer performance layer (2) and a cotton soft base layer (3) which are arranged in a stacked mode, wherein the ultraviolet-resistant surface layer (1), the nanometer performance layer (2) and the cotton soft base layer (3) are mutually fused, and the nanometer performance layer (2) is composed of the following components, by mass, 65 ~ 70 parts of polypropylene, 10 ~ 15 parts of an antibacterial agent, 8 ~ 10 parts of color master batches, 8 ~ 10 parts of an elastomer, 8 ~ 10 parts of soft master batches, 5 ~ 10 parts of a flame retardant, 2 ~ 3 parts of a blender, 1 ~ 2 parts of a high-molecular dispersant and 1 ~ 2 parts of a curing agent.
2. The degradable high-softness nonwoven fabric according to claim 1, wherein the antibacterial agent is a mixture of sodium alginate and folium isatidis extract; the flame retardant is one or a mixture of aluminum hydroxide, decabromodiphenylethane, brominated polystyrene and red phosphorus.
3. The degradable and highly flexible nonwoven fabric according to claim 1, wherein the cotton base layer (3) comprises, by mass, 75 ~ 85 parts of polypropylene staple fiber material, 15 ~ 20 parts of silicone softener, 10 ~ 15 parts of matting master batch, 5 ~ 10 parts of elastomer, and 1 ~ 5 parts of auxiliary agent.
4. The degradable high-softness nonwoven fabric as recited in claim 3, wherein said silicone softener comprises, by mass, 50 parts of epoxy terminated polyether silicone oil 50 ~ 60 and 50 parts of amino polyether ED-60010 ~ 12.
5. The method for producing a degradable and highly flexible nonwoven fabric according to any one of claims 1 to 4, comprising the steps of:
(1) preparing an anti-ultraviolet surface layer (1):
1) adding polypropylene, extinction master batches and color master batches into a material tank, and directly passing through a small-hole die after passing through a screw extruder to obtain a long continuous raw material strip; the raw material strips are subjected to hot shaping, water bath cooling, cold air drying and cutting to obtain the raw particles; then uniformly mixing a certain amount of elastomer and the soft master batch in a rolling box to obtain a mixture;
2) heating, melting and plasticizing the raw granules and the mixture by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the extinction master batch and the color master batch, and the mixture passes through a second screw extruder; the nano-filaments are sucked into the drafting device under the negative pressure action of the drafting device, and an ultrathin cloth cover is formed on the net surface under the auxiliary action of a suction fan, so that a primary surface layer is obtained;
3) carrying out ultrasonic treatment on the primary surface layer in an ethanol solution for 30min, repeatedly washing the primary surface layer with deionized water, drying the primary surface layer in a vacuum oven at 60 ℃, soaking the cleaned primary surface layer in a dopamine buffer solution, carrying out oscillation reaction in a constant-temperature water bath for 20h ~ 24h, taking out the primary surface layer, repeatedly washing with deionized water, drying, soaking the primary surface layer in an anti-ultraviolet modification solution, reacting for 8h ~ 12h at room temperature, repeatedly washing with deionized water, and drying to obtain the anti-ultraviolet surface layer (1);
(2) preparing a nano performance layer (2);
(3) a cotton soft base layer (3) was prepared.
6. The method for producing a degradable and highly flexible nonwoven fabric according to claim 5, wherein the dopamine buffer in step (1) is a 2g/L dopamine solution prepared using Tris-HCl buffer as a solvent, and the pH of the Tris-HCl buffer is 8.5; the ultraviolet resistant modified liquid is 0.1mol/L (NH)4）TiF6And 0.3mol/L of H3BO3The mixed solution of (1); the pH value of the ultraviolet-resistant modifying liquid is 3.8.
7. The method for manufacturing degradable and high-softness nonwoven fabric according to claim 5, wherein the elastomer in step (1) is composed of the following components in parts by weight: 80 parts of nano-scale elastomer master batch, 7 parts of flexible master batch, 2 parts of blending agent and 1 part of polyacrylonitrile.
8. The method of claim 5, wherein the step (2) comprises the steps of: according to the proportion, heating and melting the polypropylene raw material, adding the color master batch, the elastomer, the soft master batch and the high molecular dispersing agent, fully mixing the materials with the help of an ultrasonic oscillator, and then heating, melting and plasticizing the materials by a screw extruder; after passing through the screw extruder, the auxiliary material bin is added with the antibacterial agent, the flame retardant, the blending agent and the curing agent, and then passes through a second screw extruder; and (3) accurately metering by a metering pump, conveying the melt to a nano-hole die head, extruding the melt through a uniform hole, cooling the melt by cooling air, then feeding the cooled melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming an ultrathin cloth cover on a net surface under the auxiliary action of a suction fan to obtain the nano-performance layer (2).
9. The method of claim 5, wherein the step (3) comprises the steps of:
1) preparing an organic silicon softening agent: adding amino polyether ED-600 and epoxy terminated polyether silicone oil into an isopropanol solvent according to the proportion, uniformly stirring, reacting at 80 ℃ for 6 hours, carrying out reduced pressure distillation at 60 ℃ for 2 hours after the reaction is completed, removing the isopropanol solvent, and finally preparing the organic silicon softener;
2) preparation of the cotton soft base layer (3): mixing the polypropylene short fiber material, the organic silicon softening agent, the delustering master batch, the elastomer and the auxiliary agent according to the proportion; melting at 300 ℃ under a vacuum condition, adding the toughness special adjusting liquid, uniformly stirring, and filtering at a high temperature to obtain a molten stock solution; accurately metering and conveying the mixture to a die head through a screw extruder and a metering pump; and extruding the melt through the uniform holes, cooling the melt by cooling air, and then feeding the melt into a drafting device, sucking the nano-filaments into the drafting device under the negative pressure action of the drafting device, and forming a cloth cover on the net curtain under the auxiliary action of a suction fan to obtain the cotton soft foundation layer (3).
10. The method of claim 5, further comprising the steps of: and (3) performing hot rolling compounding on the ultraviolet-resistant surface layer (1), the nano performance layer (2) and the cotton soft foundation layer (3) through a single-sided roller after the temperature rise is completed, wherein the roller patterns are customized dot patterns, and thus the degradable high-flexibility non-woven fabric is obtained.
CN201910970910.5A 2019-10-14 2019-10-14 Degradable high-flexibility non-woven fabric and manufacturing method thereof Pending CN110714272A (en)

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CN113403751A (en) * 2021-07-08 2021-09-17 广西惠科康利医疗科技有限公司 Preparation method of melt-blown cloth for mask with treatment and health care effects
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CN114262987A (en) * 2021-12-27 2022-04-01 北自所(常州)科技发展有限公司 Smooth spun-bonded non-woven fabric and production process thereof
CN114262987B (en) * 2021-12-27 2023-01-03 北自所(常州)科技发展有限公司 Smooth spun-bonded non-woven fabric and production process thereof
CN114657708A (en) * 2022-01-23 2022-06-24 浙江广鸿新材料有限公司 Preparation process and effect of impervious glue ultra-soft non-woven fabric
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CN115748254A (en) * 2022-12-23 2023-03-07 广东宏昊化工有限公司 Hyaluronic acid-containing finishing agent and preparation method thereof
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