CN107938021A - A kind of anti-bacterial fibre, preparation method and disposable absorbent article surface layer antibacterial non-woven - Google Patents
A kind of anti-bacterial fibre, preparation method and disposable absorbent article surface layer antibacterial non-woven Download PDFInfo
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- CN107938021A CN107938021A CN201710973207.0A CN201710973207A CN107938021A CN 107938021 A CN107938021 A CN 107938021A CN 201710973207 A CN201710973207 A CN 201710973207A CN 107938021 A CN107938021 A CN 107938021A
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- graphene
- bacterial fibre
- point polymer
- antibacterial
- low melting
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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
-
- 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
- D01D5/34—Core-skin structure; Spinnerette packs therefor
-
- 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
- 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
- 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
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
Abstract
The present invention relates to the anti-bacterial fibre of skin-core structure, wherein cortex is low melting point polymer, sandwich layer is high-melting-point polymer, sandwich layer is combined with cortex by two-component spinning pack, include Graphene antibiosis composition in the low melting point polymer body of cortex, Graphene antibiosis composition is loaded with bactericidal composition, by mass percentage using modified porous graphene as framework material in the hole of modified porous graphene or top layer：Modified porous graphene is 20% 70%, antibacterial plant extract is 20% 80%, organic RE salt is 1% 5%.By anti-bacterial fibre, and through measuring, combing, thermal finalization is combined disposable absorbent article surface layer antibacterial non-woven.The anti-bacterial fibre and manufactured antibacterial non-woven of the present invention is non-stimulated to human skin, has excellent antibiotic property, anti-microbial property sustained release, stablize, and ensure that the chronicity of wash resistant and bacteriostasis, and deodorization effect.
Description
Technical field
The present invention relates to fiber and non-woven cloth preparing technical field, more particularly to a kind of anti-bacterial fibre, anti-bacterial fibre
Preparation method and a kind of disposable absorbent article surface layer antibacterial non-woven.
Background technology
As the improvement of people's living standards, people are except being concerned about that commodity are additional except packaging, smell, color, shape etc.
Beyond value, the health of oneself and household is become more concerned with, also increasingly worries fiber weaving product or nonwovens in daily life
In easily grow bacterium potential danger, it is therefore necessary to provide a kind of anti-bacterial fibre and its product so that fibre has
Anti-microbial property, suppresses fibre surface bacterial growth, keeps fibre surface itself clean.
In recent years, the domestic Research on antibacterial to fibre or non-woven cloth gradually increased, it is mainly in general fibre
Or added in the dressing liquid of non-woven cloth a small amount of antiseptic method obtain, antiseptic be one kind can kill or inhibit bacteria,
The harmful microbe functional material such as virus, through searching document, the antiseptic applied at present in general fibre or non-woven cloth
It is serial greatly that inorganic antiseptic, organic antibacterial agent and natural antibacterial agent three are broadly divided into by structure.Wherein：
1) organic antibacterial agent includes quaternary ammonium salt, imidazoles, pyridines, organic metal class etc., although sterilization speed is fast, resists
Bacterium significant effect, but exist and be also easy to produce drug resistance, the deficiencies of heat endurance is poor, and Durability of antimicrobial effect is short, and toxicity is big, so as to fibre
Dimension and its product bring new healthy hidden danger.
2) compared with organic antibacterial agent, inorganic antibacterial collection have have a safety feature, heat decomposition temperature is high, stability is good, anti-
Bacterium ability is strong and the features such as antibacterial is lasting, and that studies at present is at most most extensive.Inorganic antiseptic is generally by antibacterial components and load
Body forms, and the metal ion with antibacterial activity has silver, chromium, cobalt, nickel, copper, zinc and iron plasma, from security and antibiotic property
Common to consider, silver ion is best.But silver ion antimicrobial agent is directly using silver ion as antiseptic, and there are following defect：First,
Silver ion is easily reduced in simple substance and is changed into black, influences application of the silver ion antimicrobial agent in light color article, fastness energy
Force difference.Secondly, silver oxide precipitates are easily generated in alkaline environment, sustained release performance is poor, influences Durability of antimicrobial effect.Again, silver ion
When meeting the article or environment of chlorion, easily generate silver nitride precipitation and lose activity, salt resistant character is poor.Finally, silver carrying amount
Relatively low, complex process, required auxiliary agent species is various.
However, the inorganic antiseptic based on the metal ions such as silver, zinc, though, heat resistance strong excellent high with antimicrobial efficiency
Point, but its is expensive, environmental protection shortcoming, meanwhile, the product of long-time service and touch containing metal ions such as silver, zinc can be to people
The liver of body adversely affects；These defects limit the application of silver ion antimicrobial agent in the product.
Based on previous reasons, natural antibacterial agent comes into existence as the situation requires, compared with foregoing antiseptic, natural antibacterial agent be from plant,
Extracted in animal or biology, it is derived from a wealth of sources, cost is low, has that safe and non-toxic, antimicrobial efficiency is high, heat-resist, is not easy to produce
Raw drug resistance, has the advantages that environment friendly, therefore its application and research are increasingly valued by people.Wherein：
Patent of invention if notification number is CN103800928B discloses antibacterial deodorant, it is mainly a kind of white with plant
The alkaloid in leaf rattan source and the antiseptic deodorising product that new cryptolepine analog is main effective ingredient, including weak acid
Conditioning agent, dipotassium hydrogen phosphate, solubilizer, metal-chelating salt, cyclodextrin, active ingredient, essence, can eliminate peculiar smell in cloth products,
Effectively remove at the same time in cloth products or the bacterium being attached in cloth products and virus, and safely and effectively, fundamentally remove due to
Bacterial stink.
For another example, researcher has found that graphene has certain anti-microbial property in conventional research center, such as《The U.S.
Chemical meeting-nanometer》(ACS-Nano, 2010 volume 4 page 4317) reports a kind of graphene paper reduced by graphene oxide
With certain anti-microbial property, then there is a series of graphene with preferable anti-microbial property/silver nanoparticle composite antibacterial material
Material, still, since nano silver is in granular form, granularity is Nano grade, can only often be gathered in the privileged site of graphene, nothing
Method is evenly distributed on surface, so as to influence antibacterial effect；Meanwhile nano silver can not combine closely with graphene, particularly but receive
Rice Argent grain content increase when, agglomeration easily occurs, easily comes off in use, thus influence service life and
Antibacterial effect.
Notification number be the patent of invention of 106582327A disclose it is a kind of carry silver-colored graphene oxide-polyvinyl alcohol ultrafiltration membrane and
Its preparation and application, the method first carry out surface modification to graphene oxide with amino-containing silane coupling agent, are then complexed
Silver ion is adsorbed, is reduced through reducing agent, obtains carrying silver-colored graphene oxide, it is dispersed that silver-colored graphene oxide and pore former will be carried
In poly-vinyl alcohol solution, ultrafiltration membrane is obtained through standing and defoaming, film forming, demoulding, which has excellent anti-microbial property.
Notification number is that the patent of invention of CN105671686B discloses a kind of alginate-graphene-nano cuprous oxide
The preparation method of composite antibacterial fibre, mixed solution A is made by adding graphene to copper salt solution in it, then, by volume
Compare 9-9：1-5, above-mentioned mixed solution A is added in sodium alginate aqueous solution, and adds glucose or ascorbic acid reduces
Agent, reaction obtains sodium alginate-graphene-nano cuprous oxide gel, then obtains spinning through negative pressure de-bubble, standing, ageing
Liquid, then film forming, solidification forming, and through washing, hot-drawn tentering, drying, get product, grain consistent with consistent internal structure
The characteristics of footpath is controllable, has good water imbibition and permeability.
Notification number is that the invention of CN105002736B is related to a kind of non-woven cloth based on graphene/polyvinyl alcohol modification
Preparation method, belongs to technical field of textile chemistry.The present invention is by multiple by non-woven cloth oxide impregnation graphene/polyvinyl alcohol
Decorating liquid is closed, then graphene oxide reduction is carried out after non-woven cloth is dried, non-woven cloth fiber surface is covered one layer of reduction
Graphene oxide, obtain the hydrophilic of excellent effect, antibacterial, antistatic, the multi-functional nonwoven product of absorption.This method
, should suitable for a variety of non-woven cloths such as modification polypropylene fibre, terylene, polyamide fibre, acrylic fibers, polyethylene, polyvinyl chloride fibre, polytetrafluoroethylene (PTFE), polyphenylene sulfides
Non-woven cloth can be applied to the fields such as clothes home textile, health care, air purification, sewage disposal, military affairs.Preparation side of the invention
Method is simple, cost is low, applied widely, application value is high.
Notification number is that the patent of invention of CN107022295A is related to a kind of formula of coating solution and preparation method and application,
Coating solution includes following raw material components：Graphene, polyurethane resin and water, wherein, the matter of graphene, polyurethane resin and water
It is (0.18-0.23) to measure ratio:100：(50-80), coating solution is coated in leather base cloth, such as looped fabric, woven fabric, non-woven
Cloth, woven fabric non-woven cloth and corium, graphene is compound in coating material, the leather and fur products being thus prepared and especially
It is that summer sleeping bamboo mat has the function of excellent antibacterial, flame-retardant smoke inhibition etc..
Notification number be CN105617441B invention grab it is inner disclose a kind of Graphene antibiosis Dressing substrate, graphene oxide,
VB1, VB2, VB6, purified water, adhesive sticker non-woven cloth and single silicon mold paper, the present invention according to have more preferable biocompatibility and
Lower cytotoxicity, fungistatic effect are influenced less be subject to the physicochemical property of wound fluid, and effect is more stable, and makes
It is environmentally friendly with safety.
It can be seen from the above that graphene is as a kind of new function material with excellent antibacterial performance, in anti-bacterial fibre and
It is widely used in cloth antimicrobial coating.
The content of the invention
The purpose of the present invention is namely based on excellent antibacterial performance possessed by graphene, there is provided a kind of anti-microbial property is more excellent
And anti-microbial property is sustained, stablizes, while there is the Graphene antibiosis composition of safety in utilization and environmental safety, Yi Jiji
In the anti-bacterial fibre and antibacterial non-woven of Graphene antibiosis composition, the Synergistic antimicrobial of existing graphene is further lifted
Energy.
In order to realize above-mentioned target, the technical solution that the anti-bacterial fibre is taken：The anti-bacterial fibre is in skin-core structure, bag
Sandwich layer and cortex are included, the sandwich layer is high-melting-point polymer, and the cortex is low melting point polymer, and the sandwich layer leads to cortex
Cross two-component spinning pack to be combined, Graphene antibiosis combination is included in the low melting point polymer body of the cortex
Thing, wherein low melting point polymer body are continuous phase, have Graphene antibiosis combination low melting point polymer body is dispersed
Thing, is counted in parts by weight, and the anti-bacterial fibre component and its deal are as follows：
80-100 parts of high-melting-point polymer；
15-25 parts of low melting point polymer；
0.5-10 parts of Graphene antibiosis composition；
0.5-2 parts of dispersant；
0.6-1.5 parts of plasticizer；
0.6-2 parts of coupling agent.
Preferably, the high-melting-point polymer is polyethylene terephthalate, polybutylene terephthalate, poly- third
Alkene or polylactic acid；The low melting point polymer is polyethylene.
Preferably, the dispersant is low molecular weight polyethylene wax, random polypropylene, magnesium stearate, calcium stearate, season penta
The one or more of tetrol stearate.
Preferably, the plasticizer is dioctyl phthalate or dibutyl phthalate；The coupling agent is silicon
Kind one of in alkane, titanate esters, Aluminate, aluminium titanium composite coupler.
Preferably, the Graphene antibiosis composition is using modified porous graphene as framework material, described modified porous
Bactericidal composition is loaded with the hole of graphene or top layer, by mass percentage, its component and mass fraction are：It is modified
Porous graphene is 20%-70%, antibacterial plant extract is 20%-80%, organic RE salt is 1%-5%.Further
Ground, the antibacterial plant extract is grape pip powder, camellia seed oil, tea polyphenols, the one of which in aloe or several.Into
One step, the organic RE salt is Lanthanum Stearate, one or more of groups in cerium stearate, laurate lanthanum, laurate cerium
Close.
Preferably, the modified porous graphene is using porous graphene as basis material, using dimethyl silicone polymer pair
The porous graphene passes through the modified modified porous graphene formed that is vapor-deposited.Further, the porous graphene
Bore dia is 0.5~100nm；The porous graphene is porous oxidation graphene, one kind in porous reduced graphene or two
Kind.
On the basis of above-mentioned anti-bacterial fibre technical solution, the present invention further provides the preparation side of the anti-bacterial fibre
Method, includes the following steps：
Step 1：High-melting-point polymer, low melting point polymer are first pre-dried to moisture ﹤ 0.1%, it is spare.
Step 2：Graphene antibiosis composition, coupling agent are added in high-speed kneading machine and carry out mixed at high speed 3-5min.
Step 3：Low melting point polymer, dispersant, plasticizer are added separately to continue mixed at high speed in high-speed kneading machine
10-12min, is extruded, cooled down and is granulated through melt blending using parallel double-screw extruder, antibiotic plastic particle is made, wherein
Extrusion temperature is 195-220 DEG C.
Step 4：It is described using high-melting-point polymer as core material using step 3 antibiotic plastic particle as cortical material
Antibiotic plastic particle is plasticized by screw extruder, melts formation antibiotic plastic melt respectively, and setting extruder temperature is 235-
255℃；Meanwhile high-melting-point polymer is plasticized by screw extruder, melts formation high-melting-point polymer melt respectively, if
Extruder temperature is put as 260-295 DEG C.
Step 5：The antibiotic plastic melt, high-melting-point polymer melt enter in composite spinning box and through two-component spinneret
Component is compounded to form the fiber of skin-core structure, and it is 270-290 DEG C to set condition of spinning manifold temperature, wherein, the winding speed of spinning is
95-120m/min, cooling air temperature are 16-20 DEG C, wind speed 4-6m/s.
Based on the above technical solutions, the application technology the present invention further provides anti-bacterial fibre in non-woven cloth
Scheme：A kind of disposable absorbent article surface layer uses anti-bacterial fibre of the present invention with antibacterial non-woven, non-is knitted by existing
The technology for making cloth is processed into, and it is non-to be processed into disposable absorbent article surface layer antibacterial with anti-bacterial fibre of the present invention
Woven cloths, such as by anti-bacterial fibre after measuring, combing, longitudinally, laterally anti-bacterial fibre random alignment and are being handed in length and breadth on direction
Wrong, winding, obvolvent and be paved into anti-bacterial fibre net, then the anti-bacterial fibre net is combined through thermal finalization, the anti-bacterial fibre
In skin-core structure, wherein using high-melting-point polymer as sandwich layer, using antibiotic plastic as cortex, the antibiotic plastic is gathered with low melting point
Compound body is continuous phase, the dispersed Graphene antibiosis composition in the low melting point polymer body.
Further, disposable absorbent article surface layer further includes PET/PE bicomponent fibers with antibacterial non-woven, by existing
There is the technology of non-woven cloth, by anti-bacterial fibre of the present invention, the PET/PE bicomponent fibers through measuring, combing
Afterwards, longitudinally, laterally bicomponent fibers on direction, anti-bacterial fibre random alignment and crisscross, winding, obvolvent and spread
It is combined into composite fibre net, then by the composite fibre net through thermal finalization, the PET/PE bicomponent fibers, antibacterial are fine
The quality accounting of dimension is：PET/PE bicomponent fibers 30%-80%；Anti-bacterial fibre 20%-70%.
The beneficial effect that the present invention realizes：1) fiber is non-stimulated to human skin, has excellent antibiotic property, can suppress
The invasion and growth of bacterium, antibacterial effect protrude；2) chronicity of wash resistant and bacteriostasis, and deodorization effect, anti-microbial property be ensure that
Sustained release, stablize, and added value of product is high, and application market has a extensive future.
Embodiment
Term " disposable absorbent article "：Refer to the thing for being used for absorbing and accommodate the excreta (urine, excrement, menses) of people
Product, belong to disposable sanitary articles, i.e. hygienic articles absorb liquid and tend to saturation or do not used after containing excrement class etc.,
And enter the article of garbage reclamation processing system, including baby paper diaper, baby diaper, two-piece type baby's Tuo La trousers, adult
Paper diaper, adult's nappy etc..
Term " disposable absorbent article surface layer non-woven cloth "：Refer to hot-melt fiber by surface hydrophilicity handle and it is right
Liquid has excellent infiltrative non-woven cloth, positioned at disposable absorbent article top layer and as disposable absorbent article
Liquid permeable layer uses, including Through-Air Thermal Bonded Nonwovens, Nonwovens, spun-bonded non-woven.
The present invention has flourishing and connection nanoaperture mechanism, the high spy of specific surface area using modified porous graphene
Point, therefore the carrier using modified porous graphene as antimicrobial component, modified porous graphite is supported on by antibacterial plant extract
On alkene, the reunion of modified porous graphene is avoided；Compared to the antibacterial that simple addition antibacterial plant extract has higher
And slow release effect, anti-microbial property is lasting, improves security, can be widely used in consumer goods industries, has wide answer
Use prospect.
Modified porous graphene of the present invention is using porous graphene as basis material, using dimethyl silicone polymer pair
The modified porous graphene that the porous graphene is modified and forms by being vapor-deposited, wherein, the porous graphene can be pressed
The technology for preparing porous graphene in the prior art is made, and porous graphene and dimethyl silicone polymer then are placed in container
In measuring cup, under 240-280 DEG C of temperature conditionss, preferably 260 DEG C, by the modified 65-120min that is vapor-deposited, are changed
Property porous graphene.
Anti-bacterial fibre of the present invention is in skin-core structure, including sandwich layer and cortex, the sandwich layer are high-melting-point polymer,
The cortex is low melting point polymer, and the sandwich layer is combined with cortex by two-component spinning pack.In the cortex
Include Graphene antibiosis composition in low melting point polymer body, wherein low melting point polymer body is continuous phase, in eutectic
Polymer body is dispersed Graphene antibiosis composition for point, counts in parts by weight, the anti-bacterial fibre component and its deal
It is as follows：80-100 parts of high-melting-point polymer；15-25 parts of low melting point polymer；0.5-10 parts of Graphene antibiosis composition；It is scattered
0.5-2 parts of agent；0.6-1.5 parts of plasticizer；0.6-2 parts of coupling agent.Wherein：
High-melting-point polymer selection polyethylene terephthalate, polybutylene terephthalate, polypropylene or
Polylactic acid, preferably polypropylene or polyethylene terephthalate；The preferred polyethylene of low melting point polymer.
The dispersant is low molecular weight polyethylene wax, random polypropylene, magnesium stearate, calcium stearate, pentaerythrite are hard
The one or more of resin acid ester, the further preferred low molecular weight polyethylene wax of the dispersant or random polypropylene.
Plasticizer of the present invention, coupling agent are the common additive of technical field of plastic, in the prior art often
Plasticizer such as dioctyl phthalate or dibutyl phthalate, the coupling agent such as silane coupling agent, titanate esters
Coupling agent, aluminate coupling agent or aluminium titanium composite coupler can achieve the object of the present invention.
Organic RE salt is also loaded in the hole of modified porous graphene of the present invention, by mass percentage,
The component and mass fraction of the Graphene antibiosis composition be：Modified porous graphene is 20%-70%, antibacterial plant carries
To take thing be 20%-80%, organic RE salt is 1%-5%.Wherein, the antibacterial plant extract selection grape pip powder, oil tea
Seed oil, tea polyphenols, the one of which in aloe or several combinations；The organic RE salt for Lanthanum Stearate, cerium stearate,
One or more combination in laurate lanthanum, laurate cerium.
In addition to preferable antibacterial plant extract, organic RE salt, other anti-biotic materials of the prior art, as shell gathers
Sugar, nano-titanium dioxide, nano-silver ionic, quaternary ammonium salt are also applied for the present invention.
Graphene antibiosis composition of the present invention is realized by following preparation method：
Step 1, accurately weigh modified porous graphene, organic RE salt, antibacterial plant extract, the use of surfactant
Amount, it is spare；In this step, the surfactant is lauryl sodium sulfate, dioctyl succinate disulfonate acid, dodecyl
One or more compositions in sodium sulfonate, neopelex, NaTDC, sodium taurocholate.
Step 2, add surfactant and stir evenly in a solvent, then adds and sequentially adds antibacterial plant extract
With the composition of organic RE salt, 60-90 DEG C is warming up to, continues to stir 5-25min, obtains mixed liquor.
Step 3, add modified porous graphene in the mixed liquor of step 2, and ultrasonic disperse 2-24h, obtains containing modification
The suspension of porous graphene.
The suspension of step 3, be placed under 30-50 DEG C of temperature conditionss and remove ethanol by step 4, obtains Graphene antibiosis group
Compound precast body.
Step 5, insert Graphene antibiosis composition precast body in 60-85 DEG C of baking oven, is protected in vacuum or inert atmosphere
Under shield, keep 3-10h, it is to be dried to have an antibacterial plant extract to obtaining area load after constant weight, or antibacterial plant extract and
The Graphene antibiosis composition of the composition of organic RE salt.
In order to make further understanding to the present invention, now it is explained by embodiment.
Embodiment 1
Antibacterial filament fiber described in the present embodiment is weighed by following parts by weight：80 parts of polypropylene, 15 parts of polyethylene, stone
Black 0.5 part of alkene bactericidal composition, 0.5 part of low molecular weight polyethylene wax, 0.6 part of dioctyl phthalate, silane coupling agent
0.6 part.Wherein, Graphene antibiosis composition is by 20% modified graphene, 79% grape pip powder and 1% stearic acid
Lanthanum forms.
The antibacterial filament fiber of the present embodiment is prepared by following steps：
Step 1：High-melting-point polymer, low melting point polymer are first pre-dried to moisture ﹤ 0.1%, it is spare.
Step 2：Graphene antibiosis composition, coupling agent are added in high-speed kneading machine and carry out mixed at high speed 3-5min.
Step 3：Low melting point polymer, dispersant, plasticizer are added separately to continue mixed at high speed in high-speed kneading machine
10-12min, is extruded, cooled down and is granulated through melt blending using parallel double-screw extruder, antibiotic plastic particle is made, wherein
Extrusion temperature is 195-220 DEG C.
Step 4：It is described using high-melting-point polymer as core material using step 3 antibiotic plastic particle as cortical material
Antibiotic plastic particle is plasticized by screw extruder, melts formation antibiotic plastic melt respectively, and it is 240 DEG C to set extruder temperature；
Meanwhile high-melting-point polymer is plasticized by screw extruder, melts formation high-melting-point polymer melt respectively, screw rod is set
Temperature is 290 DEG C.
Step 5：The antibiotic plastic melt, high-melting-point polymer melt enter in composite spinning box and through two-component spinneret
Component is compounded to form the fiber of skin-core structure, and it is 285 DEG C to set condition of spinning manifold temperature, wherein, the winding speed of spinning is 95-
120m/min, cooling air temperature are 16-20 DEG C, wind speed 4-6m/s.
The present embodiment be made fineness be 0.8-2.8D antibacterial filament fiber, antibacterial filament fiber by curling, cut off with
And antibacterial staple fiber is made in thermal finalization processing：Length is 29-103mm, crimpness 14-28%, tensile strength 2.4-
3.3cN/dtex。
Embodiment 2
The anti-bacterial fibre of the present embodiment is weighed by following parts by weight：100 parts of polypropylene, 25 parts of polyethylene, graphene resists
10 parts of bacteria composition, 2 parts of random polypropylene, 1.5 parts of dioctyl phthalate, 2 parts of titanate coupling agent.Wherein, graphite
Alkene bactericidal composition is made of 70% modified graphene, 25% camellia seed oil and 5% cerium stearate.
Anti-bacterial fibre preparation process according to embodiment 1 carries out preparing antibacterial filament fiber, and antibacterial filament fiber is carried out
The antibacterial staple fiber having the following performance is made in curling, cut-out and thermal finalization processing：Length is 35-125mm, and crimpness is
11-32%, tensile strength 2.5-3.7cN/dtex.
Embodiment 3
The antibacterial staple fiber of the present embodiment is weighed by following parts by weight：90 parts of polyethylene terephthalate, poly- second
20 parts of alkene, 5 parts of Graphene antibiosis composition, 1 part of low molecular weight polyethylene wax, 1 part of dioctyl phthalate, aluminium titanium is compound
1 part of coupling agent.Wherein, Graphene antibiosis composition is combined by 50% modified graphene, 47% camellia seed oil with tea polyphenols
Thing and 3% cerium stearate composition.Camellia seed oil presses quality accounting 1 with tea polyphenol composition:1 proportional arrangement.
The preparation process of the antibacterial staple fiber of the present embodiment is as follows：
Step 1：High-melting-point polymer, low melting point polymer are first pre-dried to moisture ﹤ 0.1%, it is spare.
Step 2：Graphene antibiosis composition, coupling agent are added in high-speed kneading machine and carry out mixed at high speed 3-5min.
Step 3：Low melting point polymer, dispersant, plasticizer are added separately to continue mixed at high speed in high-speed kneading machine
10-12min, is extruded, cooled down and is granulated through melt blending using parallel double-screw extruder, antibiotic plastic particle is made, wherein
Extrusion temperature is 195-220 DEG C.
Step 4：It is described using high-melting-point polymer as core material using step 3 antibiotic plastic particle as cortical material
Antibiotic plastic particle is plasticized by screw extruder, melts formation antibiotic plastic melt respectively, and it is 250 DEG C to set extruder temperature；
Meanwhile high-melting-point polymer is plasticized by screw extruder, melts formation high-melting-point polymer melt respectively, screw rod is set
Temperature is 295 DEG C.
Step 5：The antibiotic plastic melt, high-melting-point polymer melt enter in composite spinning box and through two-component spinneret
Component is compounded to form the fiber of skin-core structure, and it is 285 DEG C to set condition of spinning manifold temperature, wherein, the winding speed of spinning is 95-
120m/min, cooling air temperature are 16-20 DEG C, wind speed 4-6m/s.
According to 1 above-mentioned steps of embodiment carry out prepare antibacterial staple fiber, length 32-108mm, crimpness 13-34%,
Tensile strength is 2.2-3.3cN/dtex.
Embodiment 4
The disposable absorbent article surface layer antibacterial non-woven of the present embodiment anti-bacterial fibre as made from embodiment 1, warp
Metering, comb after, longitudinally, laterally on direction the anti-bacterial fibre random alignment and it is crisscross, winding, obvolvent and be paved into
Anti-bacterial fibre net, then the anti-bacterial fibre net is combined through thermal finalization.
The disposable absorbent article surface layer antibacterial non-woven of the present embodiment is in forming process, the poly- second of anti-bacterial fibre
Alkene cortex melts and produces bonding point, will fix and is connected as a single entity between the fiber of anti-bacterial fibre net.
The disposable absorbent article surface layer of the present embodiment have passed through hydrophilic finiss with antibacterial non-woven and handle, existing at present
The present embodiment is suitable for the hydrophilic finiss method of non-woven cloth in technology.
Embodiment 5
The disposable absorbent article surface layer antibacterial non-woven of the present embodiment anti-bacterial fibre as made from embodiment 2 and
Bicomponent fibers are measured, mixed respectively, which is commercially available common PET/PE bicomponent fibers, according to embodiment 4
Method disposable absorbent article surface layer antibacterial non-woven, the common PET/PE bicomponent fibers, anti-bacterial fibre is made
Quality accounting be：PET/PE bicomponent fibers 30%-80%；Anti-bacterial fibre 20%-70%.
The disposable absorbent article surface layer of the present embodiment have passed through hydrophilic finiss with antibacterial non-woven and handle, existing at present
The present embodiment is suitable for the hydrophilic finiss method of non-woven cloth in technology.
Embodiment 6
The present embodiment tests the anti-microbial property of the sample of embodiment 4 and embodiment 5.
1st, test sample
Detect sample：Disposable absorbent article surface layer antibacterial non-woven made from embodiment 4 and embodiment 5.
2nd, anti-microbial property test：The test method of bacteriostasis rate refers to GB15979《Disposable Sanitary Accessory health mark
It is accurate》.
Bacterium is used in detection：Escherichia coli (Escherichia coli).
Staphylococcus aureus (Staphylcococcus aureus).
3rd, test result
20min bacteriostasis rates (%) result of embodiment 4 to embodiment 5 is as follows：
As shown by data in table, anti-bacterial fibre of the invention and made of the anti-bacterial fibre non-woven cloth to large intestine bar
Bacterium, staphylococcus aureus have good antibacterial taste removal effect and lasting inhibitory action.
Although the present invention describes specific case study on implementation, the scope of the invention is not limited to above-mentioned specific real
Example is applied, without departing from the case in the spirit of the invention, various modifications, variations and alternatives to the present invention each fall within the present invention's
Protection domain.
Claims (10)
1. a kind of anti-bacterial fibre, the anti-bacterial fibre is in skin-core structure, including sandwich layer and cortex, the sandwich layer are high-melting-point polymerization
Thing, the cortex are low melting point polymer, and the sandwich layer is combined with cortex by two-component spinning pack, its feature exists
In：Include Graphene antibiosis composition in the low melting point polymer body of the cortex, count in parts by weight, it is described
Anti-bacterial fibre component and its deal are as follows：
80-100 parts of high-melting-point polymer；
15-25 parts of low melting point polymer；
0.5-10 parts of Graphene antibiosis composition；
0.5-2 parts of dispersant；
0.6-1.5 parts of plasticizer；
0.6-2 parts of coupling agent.
2. anti-bacterial fibre according to claim 1, it is characterised in that：The high-melting-point polymer is poly terephthalic acid second
Diol ester, polybutylene terephthalate, polypropylene or polylactic acid；The low melting point polymer is polyethylene.
3. anti-bacterial fibre according to claim 1, it is characterised in that：The dispersant is low molecular weight polyethylene wax, nothing
Isotactic polypropylene, magnesium stearate, calcium stearate, the one or more of pentaerythritol stearate.
4. anti-bacterial fibre according to claim 1, it is characterised in that：The Graphene antibiosis composition is with modified porous stone
Black alkene is framework material, bactericidal composition is loaded with the hole of the modified porous graphene or top layer, by quality percentage
Than meter, its component and mass fraction are：Modified porous graphene is 20%-70%, antibacterial plant extract be 20%-80%,
Organic RE salt is 1%-5%.
5. anti-bacterial fibre according to claim 4, it is characterised in that：The modified porous graphene using porous graphene as
Basis material, passes through the modified modified porous graphite formed that is vapor-deposited using dimethyl silicone polymer to the porous graphene
Alkene.
6. anti-bacterial fibre according to claim 4, it is characterised in that：The antibacterial plant extract is grape pip powder, oil
One of which or several in tea-seed oil, tea polyphenols, aloe.
7. anti-bacterial fibre according to claim 5, it is characterised in that：The bore dia of the porous graphene for 0.5~
100nm；The porous graphene is one or both of porous oxidation graphene, porous reduced graphene.
8. anti-bacterial fibre according to claim 4, it is characterised in that：The organic RE salt is Lanthanum Stearate, stearic acid
One or more combination in cerium, laurate lanthanum, laurate cerium.
9. preparing the preparation method of the anti-bacterial fibre as described in claim 1-8 is any, include the following steps：
Step 1：High-melting-point polymer, low melting point polymer are first pre-dried to moisture ﹤ 0.1%, it is spare；
Step 2：Graphene antibiosis composition, coupling agent are added in high-speed kneading machine and carry out mixed at high speed 3-5min；
Step 3：Low melting point polymer, dispersant, plasticizer are added separately to continue mixed at high speed 10- in high-speed kneading machine
12min, is extruded, cooled down and is granulated through melt blending using parallel double-screw extruder, antibiotic plastic particle is made, wherein extruding
Temperature is 195-220 DEG C；
Step 4：Using step 3 antibiotic plastic particle as cortical material, using high-melting-point polymer as core material, the antibacterial
Plastic pellet is plasticized by screw extruder, melts formation antibiotic plastic melt respectively, and it is 235-255 DEG C to set extruder temperature；
Meanwhile high-melting-point polymer is plasticized by screw extruder, melts formation high-melting-point polymer melt respectively, screw rod temperature is set
Spend for 260-295 DEG C；
Step 5：The antibiotic plastic melt, high-melting-point polymer melt enter in composite spinning box and through two-component spinning pack
The fiber of skin-core structure is compounded to form, it is 270-290 DEG C to set condition of spinning manifold temperature, wherein, the winding speed of spinning is 95-
120m/min, cooling air temperature are 16-20 DEG C, wind speed 4-6m/s.
A kind of 10. disposable absorbent article surface layer antibacterial non-woven, it is characterised in that：The antibacterial non-woven will be such as power
Profit requires any anti-bacterial fibres of 1-8, and after measuring, combing, in longitudinally, laterally anti-bacterial fibre random alignment on direction
And crisscross, winding, obvolvent and be paved into anti-bacterial fibre net, then the anti-bacterial fibre net is combined through thermal finalization, it is described
Anti-bacterial fibre is in skin-core structure, wherein using high-melting-point polymer as sandwich layer, using antibiotic plastic as cortex, the antibiotic plastic is with low
Melting polymers body is continuous phase, the dispersed Graphene antibiosis composition in the low melting point polymer body.
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