CN112921292A - Method for batch processing of antibacterial medical silver fibers - Google Patents
Method for batch processing of antibacterial medical silver fibers Download PDFInfo
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- CN112921292A CN112921292A CN202110117518.3A CN202110117518A CN112921292A CN 112921292 A CN112921292 A CN 112921292A CN 202110117518 A CN202110117518 A CN 202110117518A CN 112921292 A CN112921292 A CN 112921292A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/34—Sputtering
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/02—Pretreatment of the material to be coated
- C23C14/021—Cleaning or etching treatments
- C23C14/022—Cleaning or etching treatments by means of bombardment with energetic particles or radiation
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/20—Metallic material, boron or silicon on organic substrates
- C23C14/205—Metallic material, boron or silicon on organic substrates by cathodic sputtering
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/50—Substrate holders
- C23C14/505—Substrate holders for rotation of the substrates
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/56—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
- C23C14/562—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks for coating elongated substrates
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- 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
- D06M11/83—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 metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
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- 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
- D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
- D06M2101/28—Acrylonitrile; Methacrylonitrile
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
Abstract
The invention belongs to the technical field of surface treatment of antibacterial medical fabric fibers, and particularly relates to a method for batch treatment of antibacterial medical silver fibers by using a sputtering coating technology. A method for batch processing of antibacterial medical silver fibers comprises the steps of selection of fiber base materials, cleaning processing of the fiber base materials, batch clamping of the fiber base materials, pre-operation of film coating of the fiber base materials, a sputtering process of the single-section distance fiber base materials and a sputtering process of a whole roll of the fiber base materials. The sputtering process is isolated from the atmosphere and is not exposed in the atmosphere, so that the pollution to the sputtering environment caused by the atmosphere exposure of the sputtering chamber is greatly reduced; the multiple groups of silver plating solution are arranged in parallel, so that batch production is realized, the production efficiency is improved, and the silver plating treatment cost is reduced; the fiber base material is in rotary silver plating in motion, so that the crystallinity, uniformity and consistency of silver plating of the silver-plated fiber are improved, continuous automatic film plating is realized, and the efficiency of batch silver plating of the fiber base material is improved.
Description
Technical Field
The invention belongs to the technical field of surface treatment of antibacterial medical fabric fibers, and particularly relates to a method for batch treatment of antibacterial medical silver fibers by using a sputtering coating technology.
Background
The medical field considers that silver has broad-spectrum and efficient antibacterial performance, and no allergy report of pure silver to human bodies is found at present. The surface modification treatment is carried out on the fabric fiber by silver, and the prepared silver fiber has the medical characteristic of metallic silver and is widely applied to the fields of clothes, home textiles, medical treatment and health care and the like.
The preparation method of the silver fiber mainly comprises the step of carrying out surface treatment on the fiber, and the general treatment methods comprise a chemical method and a physical method. The prior widely applied silver fiber processing technology is a chemical silver plating method, the silver plating on the fiber surface can be carried out in batch, the processing is fast, and the cost is low, but a plurality of chemical processing procedures are arranged at the early stage and the later stage in the chemical silver plating process, and contact with a plurality of chemical substances, so that the introduction of some impurity ions or impurity elements cannot be avoided in the whole series of processing processes. Generally, for the application in the special fields of medical antibiosis, the requirements on the purity and impurities of silver are high, so the physical surface treatment method without introducing any impurities has the advantages.
The physical surface treatment technology for medical fabrics generally adopts a sputtering surface coating technology. The sputtering surface coating technology is a technology of bombarding the surface of a target by using charged particles in vacuum so as to deposit the bombarded particles on a base material. Typically, a low pressure noble gas glow discharge is used to generate the incident ions. The cathode target is made of coating material, the substrate is used as anode, argon gas with 0.1-10Pa is introduced into the vacuum chamber, and glow discharge is generated under the action of cathode (target) direct current voltage of 1-3 KV. The ionized argon ions bombard the target surface, so that target atoms are sputtered and deposited on the substrate to form a film. The technology has the advantages of strong bonding force between a plating layer and a substrate, no pollution to a finished product and the like, but the treatment method mainly has the defect of low production efficiency of silver fibers at present. When the silver plating layer is generally processed on the fiber, a single fiber processing mode is adopted, the processing speed is not high, the efficiency is relatively low, the requirement of batch production cannot be met, and meanwhile, the utilization rate of silver is low in the processing process. In order to solve the problems, the invention provides a sputtering surface coating technology for batch processing of silver fibers.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a batch processing device and method for antibacterial medical silver fibers.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for batch processing of antibacterial medical silver fibers comprises the following steps:
the method comprises the following steps: selecting a fiber base material: selecting one of circular synthetic fibers comprising chinlon, terylene and acrylon as a fiber base material, wherein the titer of the fiber base material is 20-500 d;
step two: cleaning treatment of the fibrous substrate: cleaning the surface of the fiber base material selected in the step one;
step three: batch clamping of fiber base materials: winding the fiber substrate cleaned in the second step onto a plurality of unwinding mechanisms, placing the unwinding mechanisms on one side of a vacuum sputtering coating device in a vacuum transition cavity, sequentially and respectively penetrating the fiber substrate through a first rotary clamping mechanism, a sputtering cavity of the vacuum sputtering coating device, a second rotary clamping mechanism and a winding mechanism which are arranged between the vacuum sputtering coating device and the unwinding mechanisms, wherein the fiber substrate is positioned on the same plane in the sputtering cavity of the vacuum sputtering coating device, and the plane and the sputtering surface of the target material are arranged in parallel;
step four: coating film of fiber base material: vacuumizing the vacuum transition cavity to ensure that the vacuum degree of the vacuum transition cavity is the same as that of a sputtering cavity of the vacuum sputtering coating device;
step five: sputtering process of single-distance fiber base material: in the sputtering process of the single-distance fiber base material from the point on the fiber base material entering the target sputtering range to the point leaving the target sputtering range, starting the winding mechanism for winding, starting the vacuum sputtering coating device for silver ion sputtering, and starting the rotating assembly of the first rotating clamping mechanism to rotate the fiber base material; the single-section distance fiber base material enters the sputtering range of the target material in the winding process of the winding mechanism, and the single-section distance fiber base material rotates for a circle in the positive direction at a certain rotating speed in the sputtering range of the target material under the control of the rotating assembly of the first rotating and clamping mechanism; then stopping the rotating assembly of the first rotating and clamping mechanism, starting the rotating assembly of the second rotating and clamping mechanism, and enabling the single-section distance fiber substrate to reversely rotate for a circle at a certain angle within the sputtering range of the target material, so that the single-section fiber substrate can finish forward and reverse rotation at the same angle when passing through the whole sputtering range of the target material, and the fiber substrate can deposit silver in rotation;
step six: sputtering process of whole roll of fiber substrate: and repeating the step five until the whole roll of the fiber base material is sputtered.
Preferably, the fiber base materials in the sputtering chamber of the vacuum sputtering coating device in the third step are arranged at the same interval.
Preferably, the distance between adjacent fiber base materials in the sputtering cavity of the vacuum sputtering coating device in the step three is 1/3-2/3 of the diameter of each fiber base material.
Preferably, the fiber substrate in the second step is cleaned by high-pressure gas purging.
Preferably, the high-pressure gas purge cleaning process comprises the steps of: purging the fiber base material selected in the first step for 1-5min by using clean air with the pressure of 0.1-0.8MPa, and then purging for 5-30s by using inert argon with the pressure of 0.1-0.5 MPa.
The invention realizes the working principle of batch processing of the antibacterial medical silver fiber:
the vacuum sputtering coating process is described in detail in the background art, and is not described in detail herein.
As shown in fig. 1 and 2, the structure related to batch processing of the antibacterial medical silver fiber comprises a vacuum transition chamber 1, a vacuum sputtering coating device 2 installed in the vacuum transition chamber 1, a target 3 fixed in the vacuum sputtering coating device 2, winding mechanisms 4, second rotary clamping mechanisms 5, first rotary clamping mechanisms 6 and unwinding mechanisms 7 respectively installed at two sides of the vacuum sputtering coating device 2 in the vacuum transition chamber 1, for batch processing, multiple groups of winding mechanisms 4 and unwinding mechanisms 7 can be correspondingly arranged, and each group of winding mechanisms 4 and unwinding mechanisms 7 can be respectively and coaxially arranged, so as to improve the synchronism of each fiber substrate 8 during movement.
The first rotary clamping mechanism 6 has two functions, namely, the clamping assembly of the first rotary clamping mechanism 6 is used for arranging the scattered fiber base materials 8 from the unwinding mechanism 7, so that the fiber base materials 8 are positioned on the same plane in the sputtering cavity of the vacuum sputtering coating device 2 and the plane is parallel to the sputtering surface of the target 3, and the fiber base materials 8 in the sputtering cavity of the vacuum sputtering coating device 2 are arranged at the same interval of 1/3-2/3 of the diameter of each fiber base material; and secondly, the fiber base material 8 in the sputtering process is rotated in the positive direction or the negative direction through the rotating component of the first rotating and clamping mechanism 6.
The second rotary clamping mechanism 5 has a similar function to the first rotary clamping mechanism 6, and firstly, parallel fiber substrates 8 in a sputtering cavity of the vacuum sputtering coating device 2 are connected with the winding mechanism 4 in an emission shape through a clamping component of the second rotary clamping mechanism 6, so that a plurality of groups of winding mechanisms 6 can be conveniently placed; and secondly, the fiber base material 8 in the sputtering process is rotated in the positive direction or the negative direction through the rotating component of the second rotating and clamping mechanism 5.
After the cleaned fiber base materials 8 are rolled, a plurality of fiber base materials 8 made of the same material enter the vacuum transition cavity 1, and thread ends of the fiber base materials 8 are sequentially connected with the rolling mechanism 4 through the first rotary clamping mechanism 6, the vacuum sputtering coating device 2 and the second rotary clamping mechanism 5. The fiber substrates 8 in the vacuum sputtering coating device 2 are arranged in a mode of being parallel to the target material at the same interval, wherein the interval between the adjacent fiber substrates 8 is 1/3-2/3 of the fiber diameter. In the coating process, the winding mechanism 4 drives the fiber base material 8 to move, and when the fiber base material 8 moves, the fiber base material 8 is rotated in the opposite direction of a certain rotating speed through the rotating assemblies of the first rotating clamping mechanism 6 and the second rotating clamping mechanism 5, so that when the fiber base material 8 is in the length within the sputtering range of the moving target 3, the fiber base material 8 in the sputtering range of the target 3 completes one rotation in the positive direction and one rotation in the negative direction, the torque generated by the fiber base material 8 in the unidirectional rotation process is eliminated, the circular fiber base material 8 deposits silver in the rotation process, the silver plating crystallinity, the uniformity, the consistency and the like of silver-plated fibers are improved, the fiber base material 8 also deposits silver in the movement process, and the mass silver plating efficiency of the fiber base material is improved. The fiber substrate 8 rotates clockwise and counterclockwise by a rotation angle of the rotating component of the first and second rotating and clamping mechanisms, and certainly, in order to further improve the crystallinity, uniformity and consistency of the silver plating layer of the fiber substrate 8, the fiber substrate 8 can also rotate clockwise and counterclockwise by more than 360 degrees within the characteristics and limited experimental range of the fiber substrate.
Compared with the prior art, the invention has the beneficial effects that:
the vacuum transition cavity and the vacuum sputtering coating device are isolated from the atmosphere and are not exposed in the atmosphere, so that potential factors of polluting sputtering environment and damaging production rhythm due to the fact that the sputtering chamber is exposed in the atmosphere are greatly reduced; the multiple groups of silver plating solution are arranged in parallel, so that batch production is realized, the production efficiency is greatly improved, and the silver plating treatment cost is reduced; the fiber base material is in rotary silver plating in motion, so that the crystallinity, uniformity, consistency and the like of silver plating of the silver-plated fiber are improved, meanwhile, continuous automatic film plating is realized, and the efficiency of batch silver plating of the fiber base material is improved.
In addition, the high-pressure gas purging and cleaning technology is applied to the cleaning treatment of the fiber base material, and has the advantages of energy conservation, environmental protection, no waste liquid generation, simple treatment process, high cleaning efficiency and the like in the batch treatment process of the silver fibers.
Drawings
FIG. 1 is a schematic front view showing the components of the batch processing apparatus for antibacterial medical silver fibers according to the present invention.
Fig. 2 is a schematic top view of the components of the antibacterial medical silver fiber batch processing apparatus according to the present invention.
Fig. 3 is an XRD spectrum of silver fiber prepared in example 1 of the present invention.
Fig. 4, 5, 6 and 7 are SEM photographs of silver fibers prepared in example 1 of the present invention at different magnifications.
In the figure: 1. the device comprises a vacuum transition cavity, 2, a vacuum sputtering coating device, 3, a target material, 4, a winding mechanism, 5, a second rotary clamping mechanism, 6, a first rotary clamping mechanism, 7, an unwinding mechanism, 8 and a fiber substrate.
Detailed Description
The following examples are provided to further illustrate the embodiments of the present invention.
Referring to fig. 1 and 2, a method for batch processing of antibacterial medical silver fibers comprises the following steps:
the method comprises the following steps: selecting a fiber base material: selecting one of circular synthetic fibers comprising chinlon, terylene and acrylon as a fiber base material 8, wherein the fineness of the fiber base material 8 is 20-500 d;
step two: cleaning treatment of the fibrous substrate: cleaning the surface of the fiber base material 8 selected in the step one;
step three: batch clamping of fiber base materials: winding the fiber substrate 8 cleaned in the second step onto a plurality of unwinding mechanisms 7, placing the unwinding mechanisms 7 at one side of the vacuum sputtering coating device 2 in the vacuum transition chamber 1, sequentially and respectively penetrating the fiber substrate 8 through a first rotary clamping mechanism 6, a sputtering chamber of the vacuum sputtering coating device 2, a second rotary clamping mechanism 5 and a winding mechanism 4 which are arranged between the vacuum sputtering coating device 2 and the unwinding mechanisms 7, wherein the fiber substrate 8 is positioned on the same plane in the sputtering chamber of the vacuum sputtering coating device 2, and the plane and the sputtering surface of the target 3 are arranged in parallel;
step four: coating film of fiber base material: vacuumizing the vacuum transition cavity 1 to ensure that the vacuum degree of the vacuum transition cavity 1 is the same as that of a sputtering cavity of the vacuum sputtering coating device 2;
step five: sputtering process of single-distance fiber base material: in the sputtering process of the single-distance fiber base material from the point on the fiber base material 8 entering the target sputtering range to the point leaving the target sputtering range, the winding mechanism 4 is firstly started to wind, the vacuum sputtering coating device 2 is started to sputter silver ions, and the rotating assembly of the first rotating clamping mechanism 6 is started to rotate the fiber base material 8; the single-section distance fiber base material enters the sputtering range of the target 3 in the winding process of the winding mechanism 4, and the single-section distance fiber base material rotates for a circle in the positive direction at a certain rotating speed in the sputtering range of the target 3 under the control of the rotating assembly of the first rotating and clamping mechanism 6; then stopping the rotating component of the first rotating and clamping mechanism 6, starting the rotating component of the second rotating and clamping mechanism 5, and enabling the single-section fiber substrate to reversely rotate for a circle at a certain angle within the sputtering range of the target 3, so that the single-section fiber substrate can finish forward and reverse rotation at the same angle when passing through the sputtering range of the whole target 3, and the fiber substrate 8 can deposit silver in rotation; and the time of the sputtering process of the single-section distance fiber base material in the step five is set to be 0.5-10min according to the selected target sputtering range, and the time can be determined through limited experiments in actual production.
Step six: sputtering process of whole roll of fiber substrate: and repeating the fifth step until the whole roll of the fiber base material is sputtered.
In the third step, the fiber base materials 8 in the sputtering chamber of the vacuum sputtering coating device 2 are arranged at the same interval.
The distance between the adjacent fiber base materials 8 in the sputtering cavity of the vacuum sputtering coating device 2 in the step three is 1/3-2/3 of the diameter of each fiber base material 8.
And (2) performing high-pressure gas purging cleaning treatment on the fiber base material 8 in the step (II), wherein the high-pressure gas purging cleaning treatment comprises the following steps: firstly, purging the fiber base material 8 selected in the step one for 1-5min by using clean air with the pressure of 0.1-0.8MPa, and then purging for 5-30s by using inert argon with the pressure of 0.1-0.5 MPa.
The sputtering process in the fifth step comprises the following steps: argon gas with the pressure of 0.1-10Pa is introduced into a sputtering cavity of the vacuum sputtering coating device 2, the direct current voltage is adjusted to 1-3KV, glow discharge is generated, ionized argon ions bombard the surface of the target 3, so that silver atoms are sputtered and deposited on the fiber substrate 8, and silver fibers with silver coated surfaces are formed.
In the above steps, the first rotary clamping mechanism 6 and the second rotary clamping mechanism 5 have similar functions and structures, so long as the prior art can satisfy the following functions: 1. the clamping components of the first and second rotary clamping mechanisms can realize the arrangement of the fiber base materials 8, so that all the fiber base materials entering the sputtering cavity of the vacuum sputtering coating device 2 are positioned on the same plane, and the plane is parallel to the sputtering surface of the target 3; 2. the rotating components of the first and second rotary clamping mechanisms can drive all the fiber base materials 8 in a parallel state to rotate positively and negatively at a certain rotating speed.
In a specific embodiment of the invention, the clamping components of the first and second rotary clamping mechanisms can be fixed plates with fiber base material embedding and fixing grooves on the upper surfaces, the rotary components of the first and second rotary clamping mechanisms comprise rotary rollers which are vertical to the fiber base material and are arranged up and down, the distance between the two rotary rollers can be adjusted to adapt to clamping rotation of the fiber base materials with different titer, the two rotary rollers can perform translation in opposite directions along the axial direction of the rotary rollers, the fiber base material is driven to rotate by friction, and for the sake of simple structure, one rotary roller can be set to translate while the other is fixed. In order to improve the friction between the two rotating rollers and improve the stability of the rotation of the fiber base material, sand sleeves for enhancing the friction can be arranged on the surfaces of the two rotating rollers. The adjustment of distance between two live rollers can use current live roller distance adjustment technique, and the translation night of live roller can adopt prior art, like screw drive mechanism, if can set up the slider in the one end of the roller axle of live roller, at slider internal thread connection drive screw to realize the translation of live roller.
On the premise of the technical scheme of the batch processing steps, the technical effects of the invention are verified by the following examples, and a comparison experiment is carried out to optimize production parameters.
Example 1:
selecting round nylon with fineness of 20d as fiber base material, cleaning the surface with 0.1Mpa clean compressed air for 5min, and purging with 0.1Mpa inert argon gas for 30 s. The method comprises the steps of enabling a plurality of cleaned same base material fibers to directly and slowly rotate forwards and backwards in an alternating mode for one circle to pass through the sputtering range of a target material, enabling the fiber base material and the target material to be parallel, enabling the fiber base material to be arranged at the same interval according to the diameter 1/3 of the fiber base material, enabling 0.1pa of argon to be introduced into a sputtering cavity of a vacuum sputtering coating device in the silver plating process, enabling the direct current voltage to be 1kv, enabling the time of the sputtering coating process of a single-section distance fiber base material to be 5min, preparing the silver-plated fiber, testing the crystallinity of silver by using x-ray diffraction (XRD), enabling the crystallinity to be good, testing the uniformity and the thickness of a coating by using an electronic scanning microscope (SEM), judging.
Example 2:
selecting 40d terylene as a fiber base material, cleaning the surface of the terylene for 2min by using 0.5Mpa clean compressed air, and blowing for 5s by using 0.5Mpa inert argon. The method comprises the steps of enabling a plurality of cleaned same base material fibers to directly and slowly rotate forwards and backwards in an alternating mode for one circle to pass through the sputtering range of a target, enabling the fiber base materials to be parallel to the target, enabling the fiber base materials to be arranged at the same interval according to the diameter 2/3, introducing 4pa of argon into a sputtering cavity of a vacuum sputtering coating device in the silver plating process, enabling the direct current voltage to be 3kv, enabling the time of the sputtering coating process of a single-section distance fiber base material to be 30s, preparing the silver-plated fibers, testing the crystallinity of silver by using x-ray diffraction (XRD), enabling the crystallinity to be good, testing the uniformity and the thickness of a coating by using an electronic scanning microscope (SEM), judging the uniformity of the silver coating, and enabling the.
Example 3:
selecting acrylic fiber with 70d denier as fiber base material, cleaning the surface of the acrylic fiber with 0.8Mpa clean compressed air for 1min, and then purging with 0.5Mpa inert argon for 10 s. The method comprises the steps of enabling a plurality of cleaned same base material fibers to directly and slowly rotate forwards and backwards in an alternating mode for one circle to pass through the sputtering range of a target, enabling the fiber base materials to be parallel to the target, enabling the fiber base materials to be arranged at the same interval with the diameter of 0.4, introducing 1pa of argon into a sputtering cavity of a vacuum sputtering coating device in the silver plating process, enabling the direct current voltage to be 3kv, enabling the time of the sputtering coating process of a single-section distance fiber base material to be 10min, preparing the silver-plated fibers, testing the crystallinity of silver by using x-ray diffraction (XRD), enabling the crystallinity to be good, testing the uniformity and the thickness of a coating by using an electronic scanning microscope (SEM), judging the uniformity of the silver coating, and enabling the uniformity.
Example 4:
selecting 100d acrylic fiber as fiber base material, cleaning the surface with 0.8Mpa clean compressed air for 5min, and purging with 0.2Mpa inert argon for 20 s. The method comprises the steps of enabling a plurality of cleaned same base material fibers to directly and slowly rotate forwards and backwards in an alternating mode for one circle to pass through the sputtering range of a target, enabling the fiber base materials to be parallel to the target, enabling the fiber base materials to be arranged at the same interval according to the diameter 1/2, introducing 10pa of argon into a sputtering cavity of a vacuum sputtering coating device in the silver plating process, enabling the direct current voltage to be 2kv, enabling the time of the sputtering coating process of a single-section distance fiber base material to be 10min, preparing the silver-plated fibers, testing the crystallinity of silver by using x-ray diffraction (XRD), enabling the crystallinity to be good, testing the uniformity and the thickness of a coating by using an electronic scanning microscope (SEM), judging the uniformity of the silver coating, and enabling the uniformity.
Example 5:
selecting acrylic fiber with fineness of 200d as fiber base material, cleaning the surface with 0.6Mpa clean compressed air for 5min, and purging with 0.5Mpa inert argon for 10 s. The method comprises the steps of enabling a plurality of cleaned same base material fibers to directly and slowly rotate forwards and backwards in an alternating mode for one circle to pass through the sputtering range of a target, enabling the fiber base materials to be parallel to the target, enabling the fiber base materials to be arranged at the same interval according to the diameter 1/3, introducing 6pa of argon into a sputtering cavity of a vacuum sputtering coating device in the silver plating process, enabling the direct current voltage to be 2.5kv, enabling the time of the sputtering coating process of a single-section distance fiber base material to be 3min, preparing and obtaining the silver-plated fibers, testing the crystallinity of silver by using x-ray diffraction (XRD), enabling the crystallinity to be good, testing the uniformity and the thickness of a coating by using an electronic scanning microscope (SEM), judging the uniformity of the silver coating, and enabling.
Example 6:
selecting acrylic fiber with fineness of 500d as fiber base material, cleaning the surface with 0.7Mpa clean compressed air for 5min, and purging with 0.5Mpa inert argon for 25 s. The method comprises the steps of enabling a plurality of cleaned same base material fibers to directly and slowly rotate forwards and backwards in an alternating mode for one circle to pass through the sputtering range of a target material, enabling the base material fibers to be parallel to the target material, enabling the base material fibers to be arranged at the same interval according to the diameter 1/3 of the base material fibers, enabling 2pa of argon to be introduced into a sputtering cavity of a vacuum sputtering coating device in the silver plating process, enabling the direct current voltage to be 2kv, enabling the time of the sputtering coating process of a single-section distance fiber base material to be 60s, preparing the silver-plated fibers, testing the crystallinity of silver by using x-ray diffraction (XRD), enabling the crystallinity to be good, testing the uniformity and the thickness of a coating by using an electronic scanning microscope (SEM), judging the.
Example 7:
selecting acrylic fiber with fineness of 300d as fiber base material, cleaning the surface with 0.7Mpa clean compressed air for 5min, and purging with 0.5Mpa inert argon for 25 s. The method comprises the steps of enabling a plurality of cleaned same base material fibers to directly and slowly rotate forwards and backwards in an alternating mode for one circle to pass through the sputtering range of a target material, enabling the fiber base materials to be parallel to the target material, enabling the fiber base materials to be arranged at the same interval according to the diameter 1/3 of the fiber base materials, introducing 2pa of argon into a sputtering cavity of a vacuum sputtering coating device in the silver plating process, enabling the direct current voltage to be 2kv, enabling the time of the sputtering coating process of a single-section distance fiber base material to be 60s, preparing the silver-plated fibers, testing the crystallinity of silver by using x-ray diffraction (XRD), enabling the crystallinity to be good, testing the uniformity and the thickness of a coating by using an electronic scanning microscope (SEM), judging the uniformity of the.
Example 8:
selecting 40d terylene as a fiber base material, cleaning the surface of the terylene for 2min by using 0.5Mpa clean compressed air, and blowing for 5s by using 0.5Mpa inert argon. The method comprises the steps of enabling a plurality of cleaned same base material fibers to directly and slowly rotate forwards and backwards in an alternating mode for one circle to pass through the sputtering range of a target, enabling the fiber base materials to be parallel to the target, enabling the fiber base materials to be arranged at the same interval according to the diameter 2/3, introducing 10pa of argon into a sputtering cavity of a vacuum sputtering coating device in the silver plating process, enabling the direct current voltage to be 2kv, enabling the time of the sputtering coating process of a single-section distance fiber base material to be 10min, preparing the silver-plated fibers, testing the crystallinity of silver by using x-ray diffraction (XRD), enabling the crystallinity to be good, testing the uniformity and the thickness of a coating by using an electronic scanning microscope (SEM), judging the uniformity of the silver coating, and enabling the uniformity.
The differences between the various embodiments are shown in the following table:
referring to fig. 3, 4, 5, 6 and 7, in example 1, the XRD crystallinity was good and the uniformity of the SEM silver plating was 95% or more, and the results of the XRD crystallinity and the uniformity of the SEM silver plating in other examples are summarized in the table. When the fineness of the wire rod is increased under the same conditions as in example 6 and example 7, the uniformity of the silver layer is reduced. In comparison between example 2 and example 8, the voltage was decreased when the sputtering conditions were changed and the plating uniformity was improved when the plating time was increased under the same conditions.
The embodiment shows that when the technical scheme of the invention is adopted for carrying out batch sputtering silver plating, the XRD crystallinity is good, the SEM silver plating layer consistency is more than 85 percent, and the quality of the silver plating layer is ensured while the batch silver plating of the fiber substrate is realized.
The above embodiments and examples are specific supports for the technical idea of applying the method for batch processing of antibacterial medical silver fibers provided by the present invention, and the protection scope of the present invention is not limited thereby, and any equivalent changes or equivalent modifications made on the basis of the technical scheme according to the technical idea provided by the present invention still belong to the protection scope of the technical scheme of the present invention.
Claims (5)
1. A method for batch processing of antibacterial medical silver fibers is characterized by comprising the following steps: the method comprises the following steps:
the method comprises the following steps: selecting a fiber base material: selecting one of circular synthetic fibers comprising chinlon, terylene and acrylon as a fiber base material, wherein the titer of the fiber base material is 20-500 d;
step two: cleaning treatment of the fibrous substrate: cleaning the surface of the fiber base material selected in the step one;
step three: batch clamping of fiber base materials: winding the fiber substrate cleaned in the second step onto a plurality of unwinding mechanisms, placing the unwinding mechanisms on one side of a vacuum sputtering coating device in a vacuum transition cavity, sequentially and respectively penetrating the fiber substrate through a first rotary clamping mechanism, a sputtering cavity of the vacuum sputtering coating device, a second rotary clamping mechanism and a winding mechanism which are arranged between the vacuum sputtering coating device and the unwinding mechanisms, wherein the fiber substrate is positioned on the same plane in the sputtering cavity of the vacuum sputtering coating device, and the plane and the sputtering surface of the target material are arranged in parallel;
step four: coating film of fiber base material: vacuumizing the vacuum transition cavity to ensure that the vacuum degree of the vacuum transition cavity is the same as that of a sputtering cavity of the vacuum sputtering coating device;
step five: sputtering process of single-distance fiber base material: in the sputtering process of the single-distance fiber base material from the point on the fiber base material entering the target sputtering range to the point leaving the target sputtering range, starting the winding mechanism for winding, starting the vacuum sputtering coating device for silver ion sputtering, and starting the rotating assembly of the first rotating clamping mechanism to rotate the fiber base material; the single-section distance fiber base material enters the sputtering range of the target material in the winding process of the winding mechanism, and the single-section distance fiber base material rotates for a circle in the positive direction at a certain rotating speed in the sputtering range of the target material under the control of the rotating assembly of the first rotating and clamping mechanism; then stopping the rotating assembly of the first rotating and clamping mechanism, starting the rotating assembly of the second rotating and clamping mechanism, and enabling the single-section distance fiber substrate to reversely rotate for a circle at a certain angle within the sputtering range of the target material, so that the single-section fiber substrate completes forward and reverse rotation at the same angle when passing through the sputtering range of the whole target material, and silver deposition of the fiber substrate in rotation is realized;
step six: sputtering process of whole roll of fiber substrate: and repeating the step five until the whole roll of the fiber base material is sputtered.
2. The method for batch processing of antibacterial medical silver fibers according to claim 1, wherein the method comprises the following steps: and all the fiber base materials in the sputtering cavity of the vacuum sputtering coating device in the third step are arranged at the same interval.
3. The method for batch processing of antibacterial medical silver fibers according to claim 1, wherein the method comprises the following steps: the distance between the adjacent fiber base materials in the sputtering cavity of the vacuum sputtering coating device in the step three is 1/3-2/3 of the diameter of each fiber base material.
4. The method for batch processing of antibacterial medical silver fibers according to claim 1, wherein the method comprises the following steps: and cleaning the fiber base material in the second step by adopting high-pressure gas purging.
5. The method for batch processing of antibacterial medical silver fibers according to claim 4, wherein the method comprises the following steps: the high pressure gas purging cleaning process comprises the steps of: purging the fiber base material selected in the first step for 1-5min by using clean air with the pressure of 0.1-0.8MPa, and then purging for 5-30s by using inert argon with the pressure of 0.1-0.5 MPa.
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