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1. WO1990014591 - METHOD FOR SIMULTANEOUS CONTROL OF CLEANING AND HYGIENE AND AGENT FOR USE WHEN CARRYING OUT THE METHOD

Publication Number WO/1990/014591
Publication Date 29.11.1990
International Application No. PCT/DK1990/000123
International Filing Date 16.05.1990
Chapter 2 Demand Filed 13.12.1990
IPC
G01N 21/91 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
88Investigating the presence of flaws, defects or contamination
91using penetration of dyes, e.g. fluorescent ink
CPC
C11D 3/40
CCHEMISTRY; METALLURGY
11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
DDETERGENT COMPOSITIONS
3Other compounding ingredients of detergent compositions covered in group C11D1/00
40Dyes ; ; Pigments
G01N 21/91
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
88Investigating the presence of flaws or contamination
91using penetration of dyes, e.g. fluorescent ink
Applicants
  • ISOLINE A/S [DK]/[DK] (AllExceptUS)
  • FAMMÉ, Per, Bruun [DK]/[DK] (UsOnly)
Inventors
  • FAMMÉ, Per, Bruun
Agents
  • HOFMAN-BANG & BOUTARD A/S
Priority Data
2395/8917.05.1989DK
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR SIMULTANEOUS CONTROL OF CLEANING AND HYGIENE AND AGENT FOR USE WHEN CARRYING OUT THE METHOD
(FR) PROCEDE POUR LE CONTROLE SIMULTANE DE NETTOYAGE ET DE L'HYGIENE, ET AGENT UTILE POUR LA MISE EN ×UVRE DUDIT PROCEDE
Abstract
(EN)
For simultaneous control of cleaning and hygiene, in particular in the food industry and hospitals, an aqueous solution of an optionally fluorescent dye or a combination of such dyes which bind on organic material, including microorganisms, and colour them in the process is applied onto the surfaces which are to be cleaned. An organic contamination, if any, of the surfaces will then show itself by colouring thereof. Among the usable dyes the disodium salt of 2,4,5,7-tetraiodofluorescein is preferred. Hereby the disadvantages attached to the known methods of controlling the hygiene level at work sites and in institutions are avoided, in particular the time delay of as much as 4 days caused by the fact that samples taken out must first be incubated. By the method of the present invention immediate information about the state of the hygiene is obtained.
(FR)
Pour contrôler simultanément le nettoyage et l'hygiène, en particulier dans l'industrie de l'alimentation et dans les hôpitaux, une solution aqueuse d'un colorant éventuellement fluorescent ou une combinaison de tels colorants qui se lient sur des matériels organiques, y compris les micro-organismes, en les colorant, est appliquée aux surfaces à nettoyer. Toute contamination organique des surfaces, s'il en existe, se manifestera par ladite coloration. Parmi les colorants utilisables, on préfère le sel disodique 2,4,5,7-tétraiodofluorescéine. Les désavantages des procédés connus de contrôle de niveau de l'hygiène dans les lieux de travail et dans les institutions sont ainsi évités, en particulier un délai de jusqu'à 4 jours rendu nécessaire par le besoin d'incuber préalablement les échantillons extraits. La présente invention permet d'obtenir des informations immédiates concernant l'état hygiénique des lieux à nettoyer.
Also published as
FI915382
NO19914493
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