Paperboard
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Shiragiku ABZ™ added with anti-bacterial performance
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Anti-bacterial performance is added to the base white-lined chipboard. Safety has been confirmed through tests in accordance with the Food Sanitation Act.
ABZ comes from “Anti Bacteria ZERO”
* ZERO is taken from the base paperboard “Shiragiku ZERO”
Features of Shiragiku ABZ
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- Added with functions to prevent the propagation of Escherichia coli and Staphylococcus aureus.
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- Effect guaranteed for six months and can last up to two years if stored in good condition.
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- The main pharmaceutical constituents are listed in Japan Paper Association's Tentative Positive List of Chemical Substances in Paper and Paperboard Products for Food Contact Use.
Anti-bacterial performance of Shiragiku ABZ
Inoculum Viable count Anti-bacterial
activity value
(evaluation
standard ≧ 2.0)Inoculum
countAfter 24 hours
at 37°CUntreated test sample Escherichia
coli190,000
Photo 124,000,000
Photo 2- Shiragiku ABZ
(basis weight 650 g/m² )< 10
Photo 3> 6.3 Untreated test sample Staphylococcus
aureus220,000
Photo 4540,000
Photo 5- Shiragiku ABZ
(basis weight 650 g/m² )< 10
Photo 6> 4.9 * The above values are test values and are not guaranteed values.
Testing agency: Japan Food Research Laboratories
Test method: According to “5 Testing method (film adhesion method)” of JIS Z 2801:2012 Antibacterial products—Test for antibacterial activity and efficacy
Test bacteria: Escherichia coli NBRC 3972 and Staphylococcus aureus subsp. aureus NBRC 12732
Anti-bacterial activity value: Measured against viable count of untreated test sample (polyethylene film)
Measurement of viable count: Pour plate culture method; photos show the state of plates with 1 ml of washing solutionSafety of Shiragiku ABZ
Using tests in accordance with the Food Sanitation Act (Public Notice of the Ministry of Health and Welfare No. 370 and Notice Kanshoku No. 244 and 442), elutions of arsenic, heavy metals, phenols, and formaldehyde colorings were not found, and it was confirmed that it did not contain elutions of fluorescent material or PCB.
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