Unlock instant, AI-driven research and patent intelligence for your innovation.

Color stable hypochlorous sanitizer and use method

A hygienic agent and hygienic technology, applied in the direction of biocides, plant growth regulators, chemical instruments and methods, etc., can solve the problems of sanitation and disinfection of undisclosed utensils, etc.

Inactive Publication Date: 2005-12-07
KAY CHEM
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Choy and Wise do not disclose the sanitation of utensils in the third sink basin

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Color stable hypochlorous sanitizer and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment I

[0145] 1. Encapsulated dichloro-s-triazinetriketone sodium dihydrate

[0146] 2. Sodium acid pyrophosphate

[0147] 3. FD & C red #40, FD & C blue #1, etc.

[0148] 4. Sodium monophosphate.

[0149] 5. Trisodium phosphate chloride

[0150] Formulations 1 and 3 listed above were made and placed in a 120°F (49°C) oven for long-term stability testing. Formulations were tested weekly for chlorine availability and color stability. Duplicate formulations were made, and a third formulation was made that differed only in the use of unencapsulated sodium dichloro-s-triazinetrione as the chlorine source. After 8 weeks, all formulations containing the encapsulated chlorine source maintained an acceptable level of activity. Both formulations without the encapsulated chlorine source lost their effectiveness after only 1 week. A source of active chlorine bleaches the dye.

Embodiment II

[0152] ingredients

[0153] Using Example II, a sanitizing solution containing 30 ppm chlorine and 10 ppm dye provided an active sanitizing effect at a pH of about 7, and the color of the solution lasted for about two hours. At a lower pH of 5-6, a sanitizing solution containing 30 ppm chlorine and 10 ppm dye lasts approximately 4 hours. In both cases substantial sanitizing activity was observed without corrosion or chlorine evolution.

Embodiment III

[0155] Dye and chlorine stability tests were performed using initial dyes containing 100 ppm chlorine and 1 ppm FD & C Red #40 dye. CDB (sodium dichloroisocyanurate dihydrate) was used as the chlorine source and the test was performed at an initial temperature of 80°F (26.7°C). The following data shows the effect of pH on dye and chlorine stability:

[0156] result

[0157] pH buffer value

time (hours)

color / appearance

Available Chlorine (ppm)

2

0.0

color disappears immediately

10-50

4

2.5

color disappears

80-100

6

5.0

slightly visible

100

8

0.25

color disappears

100

10

0.0

color disappears immediately

100

12

0.0

color disappears immediately

100

2

175

have no color

0

4

175

have no color

0

6

175

have no color

80-100

8

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

Manual warewashing in common food service locations is typically performed in a multicompartment sink. In one basin the ware is contacted with an aqueous detergent. The cleaned ware is rinsed in a subsequent sink and is then sanitized in a sanitizing solution in a third sink. Hypochlorite bleaches, if adjusted to an appropriate pH, can maintain substantial sanitizing capacity while not decolorizing otherwise oxidatively sensitive dyes. In the method of the invention, the sanitizing solution adjusted to a pH of less than about 7 containing a dye can maintain a stable dye solution for a period of time greater than the time required to deplete 90 % or more of the OC in solution. An indication of the existence of active sanitizer in the sanitizer step based on the presence of color in the aqueous solution is thus obtained.

Description

field of invention [0001] The present invention relates to a solid concentrate composition having a shelf life of at least two years. The present invention also relates to a liquid or solid composition which combines a dye and a chlorine source resulting in unique cleaning or sanitation properties with controlled, precise, acceptable and effective chlorine stability. The present invention also relates to a method of cleaning or sanitizing hard surfaces or handwashing utensils in a multi-basin sink using at least one washing step with an aqueous detergent solution followed by a one-step sanitizing step with an aqueous chlorine-based sanitizer. The invention also relates to the use of a spray bottle for sanitizing hard surfaces. Background of the invention [0002] Active halogen (eg chlorine) materials have been utilized for many years for bleaching, sanitation and cleaning purposes. This material takes the form of hypochlorite (NaOCl), chlorinated isocyanurate compounds, e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C11D3/395C11D3/40C11D3/48C11D7/08C11D7/26C11D17/00
CPCC11D7/08C11D17/0047C11D3/3956C11D7/265C11D3/40C11D3/3955C11D3/48
Inventor E・D・苏勒D・C・保林格
Owner KAY CHEM