DD212264A5 - MULTICOMPONENT CLEANING AGENT, PREFERABLY FOR CLEANING POLLUTED SURFACES OF FOOD INDUSTRY EQUIPMENT AND DEVICES - Google Patents

Abstract

The invention relates to a multi-component cleaning agent, in particular for cleaning soiled surfaces of food processing equipment and devices, which consists of an alkaline component "A" and an acidic component "B", wherein the component "A" from 1-20% sodium silicate trihydrate , 1-5% sodium dihydrogen phosphate, 1-5% sodium sulphate, optionally a maximum of 5% sodium tripolyphosphate, as well as 0.3-4% Benzolsulfochlor-amidnatrium and 0.1-4% Benzoesaeurenatriumsalz, with water to 100% supplemented, while the component "B" consists of 10-30% citric acid and / or 5-20% tartaric acid, also supplemented with water to 100%. The multi-component detergent according to the invention is particularly suitable for cleaning various surfaces of food processing equipment without causing settling and corrosion.

Description

15 717 58

Multi-component cleaning agents, preferably aure polluted surfaces of equipment and devices of the food industry

Field of application of the invention:

The invention relates to a multi-component cleaning agent, preferably for cleaning soiled surfaces of equipment and devices of the food industry. These may be, for example, surfaces of various extraction and ventilation systems located in slaughterhouse floors or surfaces of generally heavily soiled metals, concrete, plastered bricks and tiles. These are primarily used in the food industry, hot or cold smoking systems, storage facilities, facilities with. Temperature control systems, as well as facilities or premises that serve for the preservation of food and for food hygiene purposes.

18.OKT.1983 * 123117

The particular importance of the detergent of the invention lies in its utility in the purification of thermal equipment in the food industry, where the removal of coke deposits with the known detergents causes complications, although thorough cleaning of these equipment is of particular importance for the following reasons:

1) Food-hygienic point of view: (preservation of the clean state of the goods)

2) Energy Economics:

(Preservation of the cleanliness of the temperature-conductive surfaces)

3) Passage capacity face is falling:

(Due to the increasing temperature treatment time of contaminated termis rather facilities, the throughput capacity of these will be lowered).

The cleaning agents used in the food industry for cleaning the above devices can be divided into two groups according to the types of active ingredients used:

The detergents belonging to the first group contain as active ingredient one or more alkaline substances. These substances saponify and emulsify the contaminants, which consist mainly of various fat residues. When using these detergents, there is often damage to the surface to be cleaned. This damage can occur in the form of Sinätzungen and surface corrosion.

The above-mentioned surface damage and the corrosion acceleration when using these detergents is another drawback in that they are

The removal of coke deposits, which are caused by thick, deadly animal proteins and fats, are not suitable.

The detergents belonging to the second group contain, in addition to the alkaline substances, a surface-active substance. The detergents combined with surfactants have a better cleaning effect, but in this case the acceleration of the Oberilachenbeschädigung and the damage caused by corrosion is also recorded here.

Furthermore, a cleaning method is known in which the surface is first treated with alkaline cleaning agents, then washed off with water, and then a post-treatment with an acid, by which any alkaline component residues are neutralized on the surface. Such a solution is described in US Pat. No. 3,511,707, however, in which the use of this agent for cleaning food processing plants is not recommended.

Object of the invention:

The object of the invention is to provide a multicomponent cleaning agent with which the various surfaces to be cleaned can be treated quickly and as thoroughly as possible, which agent should be particularly suitable for the food industry, wherein no etching occurs on metal or other surfaces to be cleaned and no corrosion phenomena should occur.

4- 4- Statement of the essence of the invention:

The invention has for its object to provide a cleaner consisting of several selected components, which can be used as an aqueous solution.

According to the invention, one component consists of an alkaline and the other of a citric acid and / or tartaric acid-containing solution.

The preparation according to the invention accordingly relates to a composition which orders an alkaline and an acid detergent component.

When using the alkaline cleaning agent most coke-like Pette are emulsified and saponified. By diffusion, the cleaning agent reaches the surface to be cleaned. The emulsification and saponification reduces the effectiveness of the wash solution, and the subsequent application of the acidic solution to the surface completely neutralizes the alkaline component.

The reaction energy liberated during the neutralization accelerates the detachment of the pette on the surface to be cleaned and a completely clean surface remains.

The cleaning agent according to the invention excludes the deposits on the surface caused by the known alkaline detergents as well as the increasing corrosion rate.

When using the multi-component preparation according to the invention, no damage occurred on the surface to be cleaned by the alkaline detergent component

D-

on, since damage to the surface can occur only after completion of the emulsification and saponification of fats. The citric acid and / or tartaric acid solution, that is the acid component, applied to the surface before the fat emulsification and saponification is completed, prevents the damaging effect of the alkaline detergent.

The alkali citrates and / or tartrates produced during the neutralization process occur as an inhibitor in the acidic cleaning phase and subsequently prevent damage to the surface and its corrosion.

In the cleaning carried out with the cleaning agent according to the invention, there is no direct contact, or only a brief contact of the alkaline detergent with the surfaces to be cleaned, such as with the metal surfaces,

In the alkaline cleaning phase, the corrosion protection is ensured by the reduced contact time with the metal surfaces and by the inhibitors, while at the same time it can be stated that the inhibitors according to the invention accelerate (catalyze) the soil-dissolving action.

The preparation according to the invention consists of an alkaline component "A" and of an acidic component "3", wherein the component "A" is selected from the viewpoint of particular suitability for complex formation with the component "3".

The component "A" of the detergent preparation according to the invention contains 1-20 % sodium disodium trihydrate, 1-5 % sodium dihydrogen phosphate, 1-5 % sodium sulphate, optionally a maximum of 5% disodium hydrogen phosphate, optionally a maximum

5 % sodium tripolyphosphate and 0.3-4 % benzenesulfochloramide sodium and 0.1-4 % benzoic acid sodium salt, supplemented with 100 % by weight.

The component "B" of the preparation contains 10-30 % citric acid and / or 5-20 % tartaric acid, supplemented with water to 100 % .

The use of benzenesulfopropylidene sodium and benzoic acid sodium salt as inhibitor in component "A" gives a good result.

In component "3" the use of citric and tartaric acid is particularly advantageous.

Ausführunssbeisüiele:

The following examples explain the invention in more detail.

example 1 Component ' ⁷ A "

KomiDonente "B"

Sodium disodium trihydrate 5 % Sodium sulphate 2 %

Sodium dihydrogen phosphate 3 % disodium hydrogen phosphate 2 % sodium tripolyphosphate 2 % benzenesulfochloroamide sodium 0.3%

Benzoic acid sodium salt 0.1 % water 85.6 %

Citric acid 10 7 / e in acid 5 water

85 %

- 7 -

BeisOiel 2

Component "A"

Component "B"

Fatriumdisilikat-trihydrat 15 Fatriumdihydrogen-phosphate 5 Fatriumsulphat 2

Disodium hydrogen phosphate 1

Fatriumtripolyphosphat 0 4% Benzolsulfοchlor-amide 0 -sodium 67 , 5% Benzoesäurenatriumsalz water O £ ^ Example 3 Component "A"

Fatriumdisilikat-trihydrate 10 Fatriumdihydrogen-phosphate 2 Fatriumsulphat 3

Dinatriumirydrogen-ph.osph.at 2 Fatriumtripolyphosphat 3 Benzolsuifochlor-amid- sodium O, 4

Benzoic acid sodium salt 0.2 water 79.4

Citric acid 20 % tartaric acid 10% water 70 %

Component "B"

Citric acid 15 tartaric acid 15 water

70

Example 4

Component "A"

Component "B"

according to example 3 citric acid 30 % water 70 %

Example 5 Component "A" Component "B

according to the previous example

? / acid 30% water 70 %

Claims (2)

1. Multi-component detergent, preferably for cleaning soiled surfaces of equipment and "devices of the food industry, characterized in that it consists of an alkaline component" A "and an acidic component" B ", wherein the component" A "from 1- 20 % sodium silicate trihydrate, 1-5% sodium dihydrogen phosphate, 1-5 % sodium sulfate, optionally a maximum of 5 % disodium hydrogen phosphate, optionally a maximum of 5 % sodium tripolyphosphate and 0.3-4 % benzenesulfochloroamide sodium and 0, 1-4 % benzoic acid sodium salt is added, with water to 100 % , while the component "B" consists of 10-30 % citric acid and / or 5-20 % tartaric acid, also supplemented with water to 100 % . 2. Cleaning agent according to item 1, characterized in that the component "B" consists of citric acid.