CN107268178B - A kind of antibacterial auxiliary material preparation method - Google Patents
A kind of antibacterial auxiliary material preparation method Download PDFInfo
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- CN107268178B CN107268178B CN201710480623.7A CN201710480623A CN107268178B CN 107268178 B CN107268178 B CN 107268178B CN 201710480623 A CN201710480623 A CN 201710480623A CN 107268178 B CN107268178 B CN 107268178B
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Abstract
A kind of antibacterial auxiliary material preparation method improves the hydrophily of web by corona treatment, so that antibacterial agent is easier to be absorbed by web.The fiber monomer on web can be made to erect the processing of web by electric field, be more advantageous to being impregnated with and embedding for antibacterial agent；The direction of the magnetic line of force can be parallel with the direction that web is run in magnetic field, it can also be perpendicular, web is behind magnetic field, under the action of external magnetic field orientation effect occurs for the nano magnetic particle being applied in web, so that the orientation of magnetic-particle is more regular, the magnetic particle of rule orientating makes auxiliary material have the magnetic field effect of certain orientation, can improve the blood microcirculation of the docile and obedient position of auxiliary material, promote the healing and regeneration of wound.
Description
Technical field
The present invention relates to a kind of medical material preparation method more particularly to a kind of antibacterial auxiliary material preparation methods.
Background technique
Plasma is the ionized gas that substance is different from solid-state, liquid, gaseous 4th kind of state.99% in universe
Substance exists with plasma form.Macroscopically, plasma is electroneutral, however, plasma contain free charge and
It and is conductive.Plasma technology is the emerging technology with surprising potential using value.In medical domain, plasma
Processing technique can be used for wound healing, and oncotherapy, organizational project, equipment disinfection and operation are set.In field of textiles, plasma
It can (such as oxygen, nitrogen, ammonia or water steam in the new functional group of textile substrates surface grafting and by some active gases
Gas) to improve polymer surface behaviors.In electronics industry, plasma is used in the bonding of electronic device, cleans to
In the manufacturing process of semiconductor.With reaching its maturity for plasma technique, application prospect is also more and more wide.
Plasma is to be named by Lang Gemiaoer nineteen twenty-eight, and William's Kreuk to Britain in 1879 can be traced earliest
This confirms that there are the 4th states of substance in discharge tube when doing gas discharge experiment) plasma state is " under certain conditions,
It can be mutually converted between each state of substance；And the different condensed states of substance correspond to the difference of material composition particle alignment orderly
Degree.The thus conversion between each state of substance, actually changes the process of substance order degree.People are from scientific experiment and life
Production recognizes that as long as the kinetic energy of electronics in each ion is made to be more than the ionization energy of atom, electronics will be detached from atom in practice
Constraint and become free electron, and atom then because lose electronics and become positively charged ion, this process become ionize.
After having enough atoms to be ionized in gas, the not original gas of this ionized gas is transformed into new
State of matter, i.e., so-called plasma state.Any common gases being made of neutral particle, as long as extraneous supply energy, makes it
When temperature is increased to sufficiently high, plasma can be become.Even if experiment shows that in common gases 0.1% gas is electric
From this ionized gas has been provided with good plasma properties；If there is 1% gas is ionized, at this moment plasma is just
" plasma is made of the perfect electronic conductor very big as conductivity a large amount of free electron and energetic ion, and whole
The ionized gas of quasi-electroneutrality is showed on body, thus its property and common gases have very big difference, particle is main in common gases
Mixed and disorderly warm-up movement is carried out, and in plasma, high energy particle also creates plasma oscillation in addition to warm-up movement, especially
It is in the presence of external magnetic field, plasma motion is influenced and dominated by magnetic field, this is plasma and common gases
Important difference.
Plasma discharge needs carry out under the conditions of different pressures, therefore are divided into low pressure plasma according to operating air pressure
And atmospheric plasma.Low pressure plasma needs are realized under low pressure or high vacuum condition, and atmospheric plasma refers to
Deng a kind of discharge mode of generation plasma under atmospheric conditions, existing office when low pressure plasma application is overcome
Limit can be realized the serialization processing to material and be modified.The particle energy and quantity and low pressure that atmospheric plasma is excited
Plasma is different, but its a large amount of active material generated acts on the effect and low pressure plasma phase of material generation
Seemingly.
In order to generate plasma, it is necessary to give gas to apply enough energy, therefore according to energy source by plasma
It is divided into including direct current (DC), radio frequency (RF), low frequency (LF) and microwave (MW) plasma.
Demand with contemporary society to functional fiber material is continuously increased, and it is most basic that cotton fiber does not need only to have its
Feature, while being also required to have the function of environmental-friendly, for example automatically cleaning, antibacterial be antifouling etc..However contain in Cotton Fabric Structure
There is a large amount of hydroxyl, so cotton fabric is easy to be soaked and stain by liquid, many basic research and practical application are all being dedicated to
Develop the functional form cotton fabric with special wetability.Currently, the superhydrophilic self-cleaning that people have the function of lotus leaf is introduced into
In field of textiles, by the modified Roughness and reduction fabric surface free energy of increasing of chemistry or geometric jacquard patterning unit surface to prepare
Super hydrophilic cotton fabric.It is typically prepared super hydrophilic cotton fabric to require using fluorochemical, but the fluorochemical of long-chain is usual
It is harmful to the human body and easily causes environmental pollution.Moreover general monomer is weaker with the chemical bond power between cotton fabric, causes
The fastness of fabric after water repellent finish is lower.Studies show that, cricoid siloxanes-t etram-ethyltetravinylcyclotetrasiloxane
The water repellency of fabric after arranging can not only be improved, and the pliability of fabric can also be improved.And in plasma graft copolymerization
In method, with Covalent bonding together between monomer-polymer and fiber, to be conducive to improve the fastness to washing of fabric.Therefore this paper
Plasma technique and floride-free t etram-ethyltetravinylcyclotetrasiloxane, octadecyl methacrylate monomer are mutually tied
It closes, develops the cotton textiles with super hydrophilic function.
Common cotton is made of cotton fibre material, and mushroom sorption and growth easily on this fiber, common cotton does not have
Standby restraining and sterilizing bacteria acts on, and can only play shielding bacterial action.
Antibacterial cotton is obtained after common cotton is carried out antibiotic finish.This finishing technique assigns cotton yarn cloth material itself
Anti-microbial property improves the antibacterial ability of material itself, the material is made to be also act against or kill bacterium while shielding bacterium.
It is possible thereby to effectively reduce the wound infection rate that cotton is bound up a wound.
Current existing antibacterial cotton is different according to the antibacterial finishing agent used, and be broadly divided into two major classes: organic antibacterial agent is whole
It manages cotton and inorganic antiseptic arranges cotton.Wherein organic antibacterial agent arranges cotton there are antibacterial type is single, and safety is poor, and microorganism is easy
Drug resistance is generated to organic antibacterial agent, the disadvantages of poor chemical stability, poor heat resistance.Inorganic antiseptic arrangement cotton compensates for above-mentioned
Disadvantage, has many advantages, such as broad-spectrum antiseptic, and it is safe to use, chemical stability is strong, heat-resist.
The inorganic antiseptic occurred arranges in cotton, and the gauze arranged using silver-series antibacterial agent is in the majority, these finishing agents
Molecular structure in there is no the group for generating active force with gossypin molecule, therefore these antibacterial agents all exist and cotton fiber
The problem that the binding strength of gauze is low, water-wash resistance is poor.Presently, there are the finishing technique of silver system antibiotic finish gauze be mainly
Suitable antibacterial agent is exactly added in coating in coating agent, carries out coating in fabric surface, then drying and necessary heat
Processing forms one layer of coating in fabric surface.The medical antibacterial gauze of method processing is single side coating mostly, has antibacterial ability
Region concentrate on the one side of fabric, and exist only in the surface of the face fabric.Meanwhile the antibacterial cotton after coating arrangement produces
Product are influenced by finishing technique, and the permeability of cotton, soft handle degree are all poor compared with common cotton.
Summary of the invention
The object of the present invention is to provide a kind of auxiliary material preparation methods with preferable anti-microbial property.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of antibacterial auxiliary material preparation method, comprising the following steps:
1): fibrous raw material being mixed, shredding, be uniformly mixed by blending hopper automatic mixer；Mixed fibrous raw material is passed through
Pre-opener mixing, uniform shredding are conveyed to next procedure by cotton transport blower fan；
2): the raw material that pre-opener conveying comes being opened by the further essence of main opener, makes the more equal of raw material shredding
It is even, then cotton feeder is transported to by cotton transport blower fan and stores up cotton storehouse；
3): the mixed fibrous raw material of shredding quantitatively, is equably fed carding machine by cotton feeder；Carding machine is by cotton feeder
Molding fibrous raw material combing networking is exported, uniform single layer fibre net is formed；
4): the single layer fibre net that lapping machine exports carding machine passes through uniform laying, is laid with to the one of required thickness
When half, continue lapping after applying nano magnetic particle between every two layer web, until required thickness and width, continuously
Constantly it is conveyed to next procedure；
5): by multi-roll drafting machine, the web of lapping machine stacking being subjected to longitudinal stretching, makes web with more pulling force
And elasticity, it is then delivered to corona treatment part, is easier web and application during subsequent antimicrobial treatment
Antibacterial agent bonding；
6): antibacterial agent spray treatment being carried out to the web of multi-roll drafting machine conveying, by antibacterial agent through forward and backward spraying box point
Holding negative pressure state is not vacuumized in the front and back sides spray antimicrobial agent of web, forward and backward spraying box, so that antibacterial agent is easier
It is impregnated into web；
7): still undried web after spray antimicrobial agent agent is passed through into the first electric field under the guidance of the first guidance roller group
Processing region；
8): the web after the first electric field treatment regional processing being entered into low temperature baking oven and carries out prebake, antibacterial
The surface layer of agent coating is tentatively formed, is dried, and the inner layer of antibacterial agent is still in partly solidifying flowable state；
9): the web Jing Guo prebake is passed through into the first magnetic field processing region under the guidance of the second guidance roller group,
Orientation process is carried out to the nano magnetic particle applied in the fibre under the action of external magnetic field.
10): will web is sent into that dryer dried, setting treatment by treated in the first magnetic field；Pass through winding
The product having been formed is carried out trimming, cuts, batches by bead cutter；
Further, the fibrous raw material in the step 1) include the anti-bacterial fibre of 50-80%, 20-40% it is ultra-fine warming
The antibacterial silver-ion fiber of fiber, 30-40%.
Further, the fibrous raw material in the step 1) include 50% anti-bacterial fibre, 20% ultra-fine thermal fiber,
30% antibacterial silver-ion fiber.
Further, the technique of carding machine is arranged in the step 3) are as follows: cylinder speed 1000-1200r/min, doffer
500-800r/min, working roll 300-500r/min, it is 25-30hz that screen hunting frequency is shaken in networking.
Further, the baking oven lower layer that the low temperature baking oven of prebake is carried out in the step 8) is 40-60 DEG C, and middle layer is
60-80 DEG C, upper layer is 80-100 DEG C；The first area temperature for the dryer dried in the step 10) is 120-140
DEG C, second area temperature is 140-160 DEG C, and third regional temperature is 160-180 DEG C.
Further, the step 6)
In antibacterial agent mixed by 80% pure acrylic polymer emulsion, 1% nano titanium dioxide powder and biological antibiosis agent
It closes.
Further, it is 500Hz~800Hz that the plasma-treating technology in the step 5), which is high voltage power supply frequency,
Pulse width is the 2 μ s of μ s~10, and voltage amplitude is -40kV~-60kV, and the processing time is 40min~60min.
Further, the first electric field in the step 7) is capacitor electric field；The first magnetic field in the step 9) is
The magnetic field that electromagnetic coil generates, the direction of the magnetic line of force can be parallel with the direction that web is run in magnetic field, can also hang down with it
Directly.
The invention has the benefit that can be absorbed by adding certain nano titanium dioxide powder in antibacterial agent
Ultraviolet light, the silver ion in nano-class antibacterial silver ion master batch protofibre pass through light-catalyzed reaction under the irradiation of ultraviolet light and produce
Raw a large amount of hydroxy radicals, it is possible thereby to by active oxygen and silver ion attack micro organisms cell simultaneously, destroy cell wall with
And desmoenzyme gene, to improve bactericidal effect, and by setting magnetic fibre net, the magnetic field generated make silver from
The bactericidal effect of son more preferably, and has magnetotherapy effect.The hydrophily for improving web by corona treatment, so that antibacterial
Agent is easier to be absorbed by web.The hydrophilicity of material can be codetermined with surface microstructure by its surface, can
It is measured with contact angle by liquid and the surface of solids.The present invention bombards compound low energy ion beam deposition using high energy ion beam
Process improving web hydrophily bombards web basis material first with high energy ion beam random to generate
Micro-nano raised structures, this raised structures due to having cause and root is thicker, stronger in conjunction with antibacterial agent, micro-nano by high and low
The generation of raised structures can increase the roughness of material surface, improve the contact angle of material surface and antibacterial agent, anti-to increase
Adhesive force between microbial inoculum and web matrix further improves the parent of material and antibacterial agent to reduce the surface energy of material surface
And property.The fiber monomer on web can be made to erect the processing of web by electric field, be more advantageous to antibacterial agent
Be impregnated with and embed；Handle the web coated with antibacterial agent by magnetic field, magnetic
The direction of the magnetic line of force can be parallel with the direction that web is run in, can also be perpendicular, and web is applied behind magnetic field
Under the action of external magnetic field orientation effect occurs for the nano magnetic particle being added in web, so that the orientation of magnetic-particle is more
To be regular, the magnetic particle of rule orientating makes auxiliary material have the magnetic field effect of certain orientation, can improve the docile and obedient position of auxiliary material
Blood microcirculation, promote the healing and regeneration of wound.
Specific embodiment
In order to clarify the technical characteristics of the invention, being illustrated below by specific embodiment to this programme.
Embodiment one
A kind of antibacterial auxiliary material preparation method, comprising the following steps:
1): fibrous raw material being mixed, shredding, be uniformly mixed by blending hopper automatic mixer；Mixed fibrous raw material is passed through
Pre-opener mixing, uniform shredding are conveyed to next procedure by cotton transport blower fan；
2): the raw material that pre-opener conveying comes being opened by the further essence of main opener, makes the more equal of raw material shredding
It is even, then cotton feeder is transported to by cotton transport blower fan and stores up cotton storehouse；
3): the mixed fibrous raw material of shredding quantitatively, is equably fed carding machine by cotton feeder；Carding machine is by cotton feeder
Molding fibrous raw material combing networking is exported, uniform single layer fibre net is formed；
4): the single layer fibre net that lapping machine exports carding machine passes through uniform laying, is laid with to the one of required thickness
When half, continue lapping after applying nano magnetic particle between every two layer web, until required thickness and width, continuously
Constantly it is conveyed to next procedure；
5): by multi-roll drafting machine, the web of lapping machine stacking being subjected to longitudinal stretching, makes web with more pulling force
And elasticity, it is then delivered to corona treatment part, is easier web and application during subsequent antimicrobial treatment
Antibacterial agent bonding；
6): antibacterial agent spray treatment being carried out to the web of multi-roll drafting machine conveying, by antibacterial agent through forward and backward spraying box point
Holding negative pressure state is not vacuumized in the front and back sides spray antimicrobial agent of web, forward and backward spraying box, so that antibacterial agent is easier
It is impregnated into web；
7): still undried web after spray antimicrobial agent agent is passed through into the first electric field under the guidance of the first guidance roller group
Processing region；
8): the web after the first electric field treatment regional processing being entered into low temperature baking oven and carries out prebake, antibacterial
The surface layer of agent coating is tentatively formed, is dried, and the inner layer of antibacterial agent is still in partly solidifying flowable state；
9): the web Jing Guo prebake is passed through into the first magnetic field processing region under the guidance of the second guidance roller group,
Orientation process is carried out to the nano magnetic particle applied in the fibre under the action of external magnetic field.
10): will web is sent into that dryer dried, setting treatment by treated in the first magnetic field；Pass through winding
The product having been formed is carried out trimming, cuts, batches by bead cutter；
Further, the fibrous raw material in the step 1) include 50% anti-bacterial fibre, 20% ultra-fine thermal fiber,
30% antibacterial silver-ion fiber.
Further, the technique of carding machine is arranged in the step 3) are as follows: cylinder speed 1000r/min, doffer 500r/
Min, working roll 300r/min, it is 25hz that screen hunting frequency is shaken in networking.
Further, the baking oven lower layer that the low temperature baking oven of prebake is carried out in the step 8) is 40 DEG C, and middle layer is 60 DEG C,
Upper layer is 80 DEG C；The first area temperature for the dryer dried in the step 10) is 120 DEG C, and second area temperature is
140 DEG C, third regional temperature is 160 DEG C.
Further, the step 6)
In antibacterial agent mixed by 80% pure acrylic polymer emulsion, 1% nano titanium dioxide powder and biological antibiosis agent
It closes.
Further, it is 500HzHz that the plasma-treating technology in the step 5), which is high voltage power supply frequency, and pulse is wide
Degree is 2 μ s, and voltage amplitude is -40kV, and the processing time is 40min.
Further, the first electric field in the step 7) is capacitor electric field；The first magnetic field in the step 9) is
The magnetic field that electromagnetic coil generates, the direction of the magnetic line of force can be parallel with the direction that web is run in magnetic field.
Embodiment two
A kind of antibacterial auxiliary material preparation method, comprising the following steps:
1): fibrous raw material being mixed, shredding, be uniformly mixed by blending hopper automatic mixer；Mixed fibrous raw material is passed through
Pre-opener mixing, uniform shredding are conveyed to next procedure by cotton transport blower fan；
2): the raw material that pre-opener conveying comes being opened by the further essence of main opener, makes the more equal of raw material shredding
It is even, then cotton feeder is transported to by cotton transport blower fan and stores up cotton storehouse；
3): the mixed fibrous raw material of shredding quantitatively, is equably fed carding machine by cotton feeder；Carding machine is by cotton feeder
Molding fibrous raw material combing networking is exported, uniform single layer fibre net is formed；
4): the single layer fibre net that lapping machine exports carding machine passes through uniform laying, is laid with to the one of required thickness
When half, continue lapping after applying nano magnetic particle between every two layer web, until required thickness and width, continuously
Constantly it is conveyed to next procedure；
5): by multi-roll drafting machine, the web of lapping machine stacking being subjected to longitudinal stretching, makes web with more pulling force
And elasticity, it is then delivered to corona treatment part, is easier web and application during subsequent antimicrobial treatment
Antibacterial agent bonding；
6): antibacterial agent spray treatment being carried out to the web of multi-roll drafting machine conveying, by antibacterial agent through forward and backward spraying box point
Holding negative pressure state is not vacuumized in the front and back sides spray antimicrobial agent of web, forward and backward spraying box, so that antibacterial agent is easier
It is impregnated into web；
7): still undried web after spray antimicrobial agent agent is passed through into the first electric field under the guidance of the first guidance roller group
Processing region；
8): the web after the first electric field treatment regional processing being entered into low temperature baking oven and carries out prebake, antibacterial
The surface layer of agent coating is tentatively formed, is dried, and the inner layer of antibacterial agent is still in partly solidifying flowable state；
9): the web Jing Guo prebake is passed through into the first magnetic field processing region under the guidance of the second guidance roller group,
Orientation process is carried out to the nano magnetic particle applied in the fibre under the action of external magnetic field.
10): will web is sent into that dryer dried, setting treatment by treated in the first magnetic field；Pass through winding
The product having been formed is carried out trimming, cuts, batches by bead cutter；
Further, the fibrous raw material in the step 1) include 80% anti-bacterial fibre, 40% ultra-fine thermal fiber,
40% antibacterial silver-ion fiber.
Further, the technique of carding machine is arranged in the step 3) are as follows: cylinder speed 1200r/min, doffer 800r/
Min, working roll 500r/min, it is 30hz that screen hunting frequency is shaken in networking.
Further, the baking oven lower layer that the low temperature baking oven of prebake is carried out in the step 8) is 60 DEG C, and middle layer is 80 DEG C,
Upper layer is 100 DEG C；The first area temperature for the dryer dried in the step 10) is 140 DEG C, and second area temperature is
160 DEG C, third regional temperature is 180 DEG C.
Further, the step 6)
In antibacterial agent mixed by 80% pure acrylic polymer emulsion, 1% nano titanium dioxide powder and biological antibiosis agent
It closes.
Further, it is 800Hz, pulse width that the plasma-treating technology in the step 5), which is high voltage power supply frequency,
For 10 μ s, voltage amplitude is -60kV, and the processing time is 60min.
Further, the first electric field in the step 7) is capacitor electric field；The first magnetic field in the step 9) is
The magnetic field that electromagnetic coil generates, the direction of the magnetic line of force can be parallel with the direction that web is run in magnetic field, can also hang down with it
Directly.
By adding certain nano titanium dioxide powder in antibacterial agent, ultraviolet light, nano-class antibacterial silver can be absorbed
A large amount of hydroxy radicals that silver ion in ion master batch protofibre is generated by light-catalyzed reaction under the irradiation of ultraviolet light, by
This can destroy cell wall and desmoenzyme gene by active oxygen and silver ion while attack micro organisms cell, thus
Bactericidal effect is improved, and by setting magnetic fibre net, the magnetic field generated makes the bactericidal effect of silver ion more preferably, and
And has magnetotherapy effect.
Improve the hydrophily of web by corona treatment, so that antibacterial agent is easier to be absorbed by web.Material
The hydrophilicity of material be by its surface can and surface microstructure codetermine, can contact by liquid with the surface of solids
Angle is measured.The present invention, which bombards compound low energy ion beam depositing operation using high energy ion beam, improves web hydrophily, first
Web basis material is bombarded using high energy ion beam to generate random micro-nano raised structures, this protrusion knot
Structure due to having cause and root is thicker by high and low, and stronger in conjunction with antibacterial agent, the generation of micro-nano raised structures can increase material
Expect the roughness on surface, the contact angle of material surface and antibacterial agent is improved, to increase the attachment between antibacterial agent and web matrix
Power further improves the compatibility of material and antibacterial agent to reduce the surface energy of material surface.
The fiber monomer on web can be made to erect the processing of web by electric field, be more advantageous to antibacterial
Agent is impregnated with and embeds；Handle the web coated with antibacterial agent by magnetic field,
In magnetic field the direction of the magnetic line of force can with web run direction it is parallel, can also be perpendicular, web behind magnetic field,
Under the action of external magnetic field orientation effect occurs for the nano magnetic particle being applied in web, so that the orientation of magnetic-particle
More regular, the magnetic particle of rule orientating makes auxiliary material have the magnetic field effect of certain orientation, can improve the docile and obedient position of auxiliary material
The blood microcirculation set promotes the healing and regeneration of wound.
Claims (1)
1. a kind of antibacterial auxiliary material preparation method, which comprises the following steps:
1): fibrous raw material being mixed, shredding, be uniformly mixed by blending hopper automatic mixer；By mixed fibrous raw material by opening in advance
Loose machine mixing, uniform shredding are conveyed to next procedure by cotton transport blower fan；
2): the raw material that pre-opener conveying comes is opened by the further essence of main opener, makes raw material shredding more evenly, then
Cotton feeder, which is transported to, by cotton transport blower fan stores up cotton storehouse；
3): the mixed fibrous raw material of shredding quantitatively, is equably fed carding machine by cotton feeder；Carding machine exports cotton feeder
Molding fibrous raw material combs networking, forms uniform single layer fibre net；
4): the single layer fibre net that lapping machine exports carding machine pass through uniform laying, be laid with to required thickness half when,
Continue lapping after applying nano magnetic particle between every two layer web, until required thickness and width, successively
Be conveyed to next procedure；
5): by multi-roll drafting machine, the web of lapping machine stacking being subjected to longitudinal stretching, makes web with more pulling force and bullet
Property, it is then delivered to corona treatment part, makes the antibacterial that web is easier and subsequent antimicrobial treatment applies in the process
Agent bonding；
6): antibacterial agent spray treatment being carried out to the web of multi-roll drafting machine conveying, antibacterial agent is existed respectively through forward and backward spraying box
The front and back sides spray antimicrobial agent of web vacuumizes holding negative pressure state in forward and backward spraying box, so that antibacterial agent is easier to impregnate
Into web；
7): web still undried after spray antimicrobial agent is passed through into the first electric field treatment area under the guidance of the first guidance roller group
Domain；
8): the web after the first electric field treatment regional processing being entered into low temperature baking oven and carries out prebake, antibacterial agent is applied
The surface layer of layer is tentatively formed, is dried, and the inner layer of antibacterial agent is still in partly solidifying flowable state；
9): the web Jing Guo prebake being passed through into the first magnetic field processing region under the guidance of the second guidance roller group, external
Orientation process is carried out to the nano magnetic particle applied in the fibre under the action of magnetic field；
10): will web is sent into that dryer dried, setting treatment by treated in the first magnetic field；By winding trimming
The product having been formed is carried out trimming, cuts, batches by machine.
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| CN201811453822.XA CN109371566B (en) | 2017-06-22 | 2017-06-22 | Preparation method of antibacterial auxiliary material |
| CN201811452909.5A CN109652975B (en) | 2017-06-22 | 2017-06-22 | Preparation method of antibacterial auxiliary material |
| CN201811453809.4A CN109577018B (en) | 2017-06-22 | 2017-06-22 | Preparation method of antibacterial auxiliary material |
| CN201811453810.7A CN109629119B (en) | 2017-06-22 | 2017-06-22 | Preparation method of antibacterial auxiliary material |
| CN201811452902.3A CN109629224B (en) | 2017-06-22 | 2017-06-22 | Preparation method of antibacterial auxiliary material |
| CN201710480623.7A CN107268178B (en) | 2017-06-22 | 2017-06-22 | A kind of antibacterial auxiliary material preparation method |
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| CN201811453809.4A Division CN109577018B (en) | 2017-06-22 | 2017-06-22 | Preparation method of antibacterial auxiliary material |
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| CN109652975B (en) | 2021-06-08 |
| CN109629119B (en) | 2021-11-02 |
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| CN109629119A (en) | 2019-04-16 |
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| CN109652975A (en) | 2019-04-19 |
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