Indicator for plasma sterilization and packaging material for sterilization
A plasma and packaging material technology, applied in disinfection, analysis using chemical indicators, water supply devices, etc., can solve the problems of slow discoloration, unclear disinfection treatment, lack of stability, etc.
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Examples
Embodiment 1
[0067] The following components constituting the indicator for plasma disinfection were mixed and stirred until uniform to prepare a composition for forming the indicator portion.
[0068] (Indicator Composition 1 for Plasma Disinfection)
[0069] ·Hematoxylin 1.0wt%
[0070] ·Diisopropoxybis(acetylacetonate)titanium 1.0wt%
[0071] ・Varnish (Sefulon (セ-フル): trade name, manufactured by T&K TOKA Co., Ltd.) 80.5 wt%
[0072] ·Methanol 15.0wt%
[0073] ・Ultraviolet absorber 2.5wt%
[0074] (Tinuvin 400 (tinuvin 400): trade name, manufactured by Ciba-Geigy)
[0075] The above-mentioned indicator composition is coated on the surface of a sheet of high-density polyethylene non-woven fabric by a gravure printing method using a gravure roll, and the coating amount after drying is 10 g / m 2 coated to form a display portion. The color of the display part is dark brown.
Embodiment 2~10
[0077] In the above-mentioned indicator composition 1 for plasma disinfection, except that the hematoxylin was changed to use each adsorption indicator and chelate titration / metal indicator described in Table 1 below, the same method as in Example 1 was prepared. A composition for forming an indicating portion, thereby forming a display portion. The colors of the display parts are also described in Table 1 below.
[0078]
(A) Ingredients
display performance
Color change speed
Sterile packaging
material display
performance
Sterile packaging
Disinfection
previous colors
Disinfection
after color
Disinfection
after color
Bacterial hair
education
Example 1
Hematoxylin
dark brown
yellow
○
yellow
none
Example 2
Mordant blue
-29
cyan
Purple
○
Purple
none
...
Embodiment 11-20
[0091] In the indicator compositions for disinfection used in the above-mentioned Examples 1 to 10, except that diisopropoxybis(acetylacetonate)titanium as an organometallic compound was replaced with aluminum ethyl acetylacetonate diisopropoxide, the same as in the embodiment Example 1 obtains the non-woven fabric sheet of embodiment 11~20 and sterilization packaging material identically, and carries out with
[0092] Same evaluation as Example 1.
[0093] The results of the evaluation were the same as in Examples 1 to 10, and even when the organometallic compound was changed, almost the same color was obtained, and it was confirmed that all achieved good display performance and disinfection performance.
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Abstract
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Application Information
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