• Antibacterial/Antiviral Decorative Coating Machine

Antibacterial/Antiviral Decorative Coating Machine

Model : DYHC-H

COVID-19 is raging around the world, causing tens of thousands of lives to die. The main transmission routes of the virus are contact transmission, close-range transmission and air transmission. Therefore, in the response strategy of COVID-19, countries currently mainly use masks, hand washing, social distance and health education. And other epidemic prevention measures. However, these passive epidemic prevention measures can hardly prevent the spread of the epidemic.

With the emergence of epidemic mutations endlessly, how to improve self-protection when uncertain about when the epidemic will break out again, and even introduce active anti-epidemic technology to actively and effectively kill the virus is to prevent the spread of coronavirus The best solution, the anti-virus decorative coating machine developed by  Dah Young Vacuum Equipment Co., Ltd. is a very feasible solution that can be implemented immediately!

As can be seen from the figure below, the survival time of the new coronavirus in different objects, so it is easy to spread the disease through contact in an unsterilized environment. Not to mention that bacteria, viruses, molds, and microorganisms are ubiquitous in everyday life, and disinfectants or dry hands cannot be used at any time, increasing the chance of getting sick. On the other hand, long-term use of organic antibacterial agents can easily induce bacterial and viral mutations, which in turn produce drug resistance and super bacteria (virus).In view of this, inorganic antibacterial agents, such as silver, copper, and zinc, although slower than organic antibacterial agents, but the physical bactericidal (viral) characteristics, less harmful to the environment, virus mutations, etc., and have a long-term Stability, can be used for antibacterial coating of articles.

The antibacterial test results on E. coli showed that Petri dishes of Staphylococcus aureus corresponded to various deposition periods of bare PET fabric and brass-coated fabric. The antibacterial effect of these brass-coated fabrics was described. In Figure 2(a), a large number of E. coli colonies were observed, indicating that the uncoated fabrics had no antibacterial properties. Figures 2(b) to (e) compare the results of these brass coatings to fabrics obtained with different deposition times. Obviously, the brass-coated fabric with a deposition time of more than 1 minute showed obvious E. coli colonies, and this finding qualitatively established the antibacterial effect of the brass coating on E. coli.


covid19.jpg

Figure 1.The survival time of coronavirus on the surface of different objects.(source)




Figure 2. E. coli colonies formed on the Petri dish corresponding to the inoculum, which were previously inoculated.
(A) The pre-plated Cu-35Zn substrate has been immediately incubated for 40 hours (Group A).
(B) Group B cultured for 40 h was pre-inoculated with Cu-35Zn pre-plated substrate for 24 h.
(C)–(f) The protein obtained under different coating conditions of the TiN coating samples containing copper was inoculated for 24 hours and incubated for 40 hours (Group C).



  • Performance Specifications


Virus

Family

Metal Nanoparticle Composition (size)

Mechanism of Action

Human immunodeficiency virus type 1

(HIV-1)

Retroviridae

PVP-coated silver nanoparticles

(110 nm)

Interaction with gp120

Herpes simplex virus type 1

(HSV-1)

Herpesviridae

MES-coated silver and gold nanoparticles

(4 nm)

Competition for the binding of the virus to the cell

Respiratory syncytial virus

Paramyxoviridae

PVP-coated silver nanoparticles

(69 nm +/ 3 nm)

Interference with viral attachment

Monkeypox virus

Poxviridae

Silver nanoparticles and polysaccharide-coated Silver nanoparticles

(1080 nm)

Block of virus-host cell binding and penetration

Influenza virus

Orthomyxoviridae

Sialic-acid functionalized gold nanoparticles

(14 nm)

Inhibition of virus binding to the plasma membrane

Tacaribe virus (TCRV)

Arenaviridae

Silver nanoparticles and polysaccharide-coated Silver nanoparticles

(10 nm)

Inactivation of virus particles prior to entry

        Hepatitis B virus 

(HBV)

             Hepadnaviridae

Silver nanoparticles;

(1050 nm)

Interaction with double-stranded DNA and/or binding with viral particles



  • Equipment Specifications


 Coating Technology  Cathodic arc evaporation  HiPIMS 
 Coating Substrate  Various metals Metal, ceramic, enamel, glass, plastic
 Coating Materials

 Plated into various metal films (such as Ag, Cu, Al, etc.)

 .Nitride film (TiN, ZrN, CrN, TiAlN)
 .Carbide film (TiC, TiCN)
 Oxide film (such as TiO, AlTiO, etc.)
 Coating Color  Designed according to customer needs
 Chamber Material  Stainless steel SUS304
 Operating system  IPC and PLC
 Parts brand  Huatinger , Pfeiffer , Leybold, etc.
 Exhaust system  Pfeiffer , Leybold...etc.
 Weight  ~5000kg  ~6000kg
 Chamber Diameter  Ø1000mm  Ø1200mm 
 Chamber  Height  H1000mm  H1200mm
 Number of rotation axes

 7 axes (other designs can be designed according to product requirements)

 6~12(Depending on the process)
 Effective Coating Diameter  Ø228mm  Ø960mm 
 Effective Coating Height  H750mm  H850mm
 Coating Deposition  Method  Cathodic arc evaporation  HiPIMS magnetron sputtering coating and cathodic arc coating
 Number of  sources  10 groups  6
 Power Supply (kW)  10kW  20kW
 Ultimate vacuum (Torr)  5*10-6 Torr  5*10-6 Torr
 Production Cycle Time  Depending on the process  Depending on the process
 Demand power

 3 phase, 380V ±5%, 150A, 60Hz,

 independent grounding

 3 Phase/380V/170kW/50-60Hz

  • Active anti-epidemic technology, active and effective to kill viruses, is the best solution to prevent the spread of coronavirus.
  • Introduce inorganic antibacterial agent (such as silver, copper and zinc) for the coating of articles, which has the functions of anti-virus and color decoration plating.
  • The anti-viral membrane layer is of physical nature, less harmful to the environment, viral variation, etc., and has long-term stability.
  • The antiviral membrane layer can accelerate the elimination of the virus and reduce its chance of contact with the human body.
  • Bathroom supplies, furniture, accessories, auto parts and construction materials


   


Unlike electroplated metal layers, ceramic coatings have excellent hardness, fire resistance, corrosion resistance and chemical stability, as well as a variety of colors to choose from. Therefore, using appropriate ceramics to coat the surface of the object can improve its mechanical and chemical properties. A good ceramic coating can not only increase the surface hardness, but also protect the metal substrate from corrosion.

In corrosive environments, ordinary ceramic materials may be considered as favorable candidates, including TiN, ZrN and derivatives of these two compounds, such as TiCxNy, TiNxOy, ZrCxNy, ZrNxOy. While physical vapor deposition (PVD) can be used to synthesize ceramic coatings, the mechanical properties of coated objects can be improved using this equipment.

Corrosion resistance of Cu-containing titanium nitride coating Fig. 1 shows the potentiodynamic polarization curves of the pre-electroplated Cu–35Zn substrate and selected TiN coated specimens containing different levels of Cu. The corresponding values of corrosion potential and corrosion current are tabulated in Table 1.As shown in Fig. 1, the pre-electroplated Cu–35Zn substrate undergoespassivation in the over potential range of −371.76 mV to−201.62 mV due to the nature of nickel and chromium used as the pre-electroplated layer. 

By employing TiN coatings containing different levels of Cu, the corrosion potential for all of the coated specimens is promoted to a nobler level and is ascribed to the ceramic characteristic of the TiN matrix. By contrast, the copper in the TiN coating participates in the electrochemical reaction and raises the complexity of the system and results in a zigzag curve appearing in the passive region, as shown in Fig. 1. The TiN coated specimen without Cu content instead presents a rather smooth curve over the passive region,supporting that Cu content raises the complexity of the system.Consequently, regarding increased corrosion potential, Cu-containing TiN coatings improved the corrosion resistance of the pre-electroplated Cu–35Zn substrate.



Fig. 1. Potentiodynamic polarization curves of the pre-electroplated Cu–35Zn substrate

and selected TiN coated specimens containing different levels of Cu.





Table 1 .Corrosion potential (vs. saturated Ag/AgCl electrode) and corrosion current of
pre-electroplated Cu–35Zn substrate; and selected TiN coated specimens containing
different levels of Cu.

Specimens   
Ecorr (mV)   
Icorr (μA)
Pre-electroplated Cu–35Zn
−371.76 
0.61
0 at.%         
−201.62
0.52
1.49 at.%  
−214.64
0.54
7.04 at.%      
−213.14
0.53
21.65 at.%
−196.13
0.49



antibacterial-coating-experiment2.png
Figure 2. Examples of colors



  • Soft materials such as surgical gloves, masks, sheets, etc.


   


The surface properties of textile materials are very important, because the application of textiles depends heavily on this. Many surface treatment technologies have considered adopting modified methods to achieve specific surface properties. For example, the metallization of the surface of the fabric produces electrical conductivity, supporting various functions suitable for the textile industry. These include electromagnetic shielding (EMS), as well as antistatic and antibacterial applications. The spread of drug-resistant bacteria and hospital-acquired infections have promoted the development of the disease, giving priority to the use of antibacterial materials for prevention purposes to achieve traditional disinfection concepts.

Through a high-power pulsed magnetron sputtering (HIPIMS) source: high-voltage pulses are generated to provide high-density plasma, and finally a firmly adhered film is formed at a reduced substrate temperature. Based on this unique power supply, textiles that achieve antibacterial treatment.


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