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| Anti Bacteria |
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Many places throughout society where cleanliness is key, such as hospitals, senior welfare facilities, public health facilities, restaurants, and public places, have recently fallen prey to environmental pollution. Unfortunately, the elderly, children, and the sick are becoming increasingly ill due to the emergence of staphylococcus aureus - a form of bacteria not affected by antibiotics. Dongbu's high quality steel sheet is coated with paint containing an inorganic anti-bacterial agent.
This specially treated paint bonds the ions of crystallized aminosilicate (an alkaline earth metal) and acts as a deodorant to polar substances, non-saturated carbons, and ion exchanges. It also has heat resistant and anti-decolorization properties. As long as this special paint remains on the steel sheet, it will always keep its anti-bacterial, deodorant, and fungus resistance properties. |
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Anti-bacterial properties
- Staphylococcus aureus
- This bacterium exists within human beings and animals living in a natural environment. This bacterium is categorized as either pathogenic or non-pathogenic. Forms of this coccus include otitis, mucous disease, and meningitis.
- Colon bacillus
- Sterilization against colon bacillus takes place at a boiling temperature of 60℃ for 15-20 minutes. Most forms of this bacterium are non- pathogenic and live inside the human body and organs of animals. Colon bacillus causes infections and diarrhea among newborn infants.
- Pseudomonas aeruginosa
- Pseudomonas aeruginosa is commonly found inside the intestine. This bacterium oxidizes and dissolves sugar, causing otitis, meningitis, and pneumonia among children. This bacterium widely exists in contaminated water and is highly resistant to antibiotics.
- Bacillus subtilis
- This bacterium generally does not grow in a normal environment, but will germinate rapidly as circumstances become more conducive to its growth.
- Anti-bacteria Properties test result
항균성능 시험 결과 (가암 밀착법)
| Test bacteria count |
Sample name |
unit |
intial Bacteria Count |
After 24 hours |
Inhibition Rate (%) |
Staphylococcus
aureus |
Anti-bacterial coating steel sheet |
CFU/㎖ |
1.0×103 |
＜2 |
99.8 |
| Conventional coating steel sheet |
CFU/㎖ |
1.0×103 |
9.5×102 |
5.0 |
| Colon bacillus |
Anti-bacterial coating steel sheet |
CFU/㎖ |
1.0×103 |
＜1 |
99.9 |
| Conventional coating steel sheet |
CFU/㎖ |
1.0×103 |
1.0×102 |
9.1 |
Pseudomonas
aeruginosa |
Anti-bacterial coating steel sheet |
CFU/㎖ |
1.0×103 |
5 |
99.5 |
| Conventional coating steel sheet |
CFU/㎖ |
1.0×103 |
9.6×102 |
4.0 |
| Bacillus subtilis |
Anti-bacterial coating steel sheet |
CFU/㎖ |
1.0×103 |
9 |
99.1 |
| Conventional coating steel sheet |
CFU/㎖ |
1.0×103 |
9.5×102 |
5.0 |
- CFU : Coliny-Forming Unit
- While conventional steel sheets have an inhibition rate of 10% or less, pre-painted anti-bacterial steel sheet has a 99% or higher inhibition rate, effectively preventing.
Principle of Antibiosis & Applications
Principle of Antibiosis
As illustrated in the picture, the bacterial structure gradually weakens and then breaks, effectively eliminating it.
Applications
Applications
| Commercial Products |
Applications |
Company |
| Drum of the washing machine |
Blue Washer |
Samsung Electronics Co., Ltd |
| Anti-bacterial PE, PP resin |
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SK Corporation |
| Kitchenware, chopping board (PE) |
Partner |
Kyeong Bong |
| Kitchenware (PE container) |
Gild Lady |
Gold Co., Ltd |
| Anti-bacterial ABS resin |
Refrigerator, dish dryer etc. |
Cheil Industries Inc. |
| Anti-bacterial deodorant fiber |
Anti-bacterial humidifier |
Samsung General Chemicals Co., Ltd. |
| Anti-bacterial deodorant fiber |
BACSTRONG-P |
Samyang Corporation |
| Anti-bacterial paint |
Anti-bacterial powder paint |
Daehan International Paint |
Durability and Tolerance Level
Durability and Tolerance Level
| Test Frequency |
MRSA |
Pseudomonas aeruginosa |
| 1 |
500 |
200 |
| 2 |
500 |
200 |
| 3 |
250 |
100 |
| 4 |
250 |
200 |
| 5 |
250 |
100 |
| 6 |
250 |
100 |
| 7 |
250 |
100 |
| 8 |
250 |
200 |
| 9 |
250 |
100 |
| 10 |
250 |
200 |
- Tolerance test result (concentration level unit: ppm), Source: Ceramics
Non-toxicity
Zeolite, which is used in anti-bacterial agents, is closely linked to our everyday lives, as it is used as an additive for animal feed and drying materials. Silver, which is added during the ion bonding process, has also been widely used since ancient times; it was used as a material for kitchenware, dental materials, ornaments, and disinfectants. In an experiment where radioactive silver was directly injected into the stomach, 99% of bacterium was discharged. No report has been made regarding safety concerns over the use of silver- zeolite (a composite of silver and zeol).
Specifications
- Product : Anti-bacteria Property Color Coating Steel Sheet
- Type : P/E, Si-P/E, Weather Resistance P/E, PVDF
- Property (P/E standard)
the Specifications
| Item |
Anti-bacterial property Color Coating Steel Sheet |
Remarks |
| Color difference |
△E0.8 or lower |
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| Polish |
Basic Plate Comparison ±7 |
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| Coating thickness |
Ordered Dry Film Thickness ±2μ |
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| Bend test |
3 points or higher |
2T |
| Impact test |
3 points or higher |
1.5㎏,50㎝ |
| MEK test |
40 trials or more |
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| Pencil hardness test |
2H or higher |
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Cross Section
Size Availability
Antibiotic Experiment
Staphylococcus aureus
Colon bacillus
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