Two-part disinfectant system including color indicator

By using selective dyes and photoelectric methods in disinfectant systems, the challenges of chlorine dioxide generation and concentration verification have been solved, enabling reliable confirmation of chlorine dioxide generation. This method is suitable for both automated and manual verification of disinfectant systems.

CN115867135BActive Publication Date: 2026-07-03TRISSTAIL PLC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TRISSTAIL PLC
Filing Date
2021-07-13
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing chlorine dioxide disinfectant systems struggle to ensure the generation and concentration verification of chlorine dioxide, especially in automated systems. Traditional methods such as test strips, odor detection, and spectrophotometry have limitations in accuracy and laboratory facilities, and are susceptible to interference from other disinfectants.

Method used

Selective dyes, such as anthocyanins, betaine dyes, are used in disinfectant systems to verify the generation of chlorine dioxide through color changes. Combined with photoelectric methods, uniformity and effectiveness are ensured, and interference from other disinfectants is avoided.

Benefits of technology

Visual or photoelectric verification methods are provided to ensure that the generation and concentration of chlorine dioxide meet the requirements, reduce the risk of user errors, and adapt to the needs of automated systems.

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Abstract

A disinfectant system includes a first portion comprising a first reagent contained in a carrier medium; and a second portion miscible with the first portion and contained in the carrier medium, comprising a second reagent. The first and second reagents react upon mixing to provide a chlorine dioxide disinfectant composition. The first or second portion further includes anthocyanins, betaines, or other pigments that oxidize in the presence of chlorine dioxide to produce a visible color change when the first and second reagents are mixed, and does not change color when the dye-containing portion is exposed to a disinfectant composition comprising hydrogen peroxide and / or peracetic acid.
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