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 the most important specifications and standards that determine the quality of dish washing liquid soap

the most important specifications and standards that determine the quality of dish washing liquid soap

Quality of liquid soap - standards of measuring the quality of the Dishwashing liquid - the ratio of the active substance in the liquid gel - acidity of liquid soap - external appearance - Nacl proportion of food salt - moisture and volatile substances - expiry - smell.

This is what we will address in detail in this article .........

Dear reader to be able to make Dishwashing liquid and quality conforming to specifications you have to know these specifications and how to measure and control them we have previously provided the method of making a professional clear liquid mixture conforming to the specifications.

These specifications may vary from country to country, but they remain fairly close.

Standard specifications for liquid soap

1- The ratio of the active substance and the calculation of its concentration:

The standard specification of the proportion of active substances varies from country to country and is usually between 18-22%, or a minimum of 18% or a minimum of 20%, or a minimum of 22%, and determines the proportion of active substances in liquid soap from the liquid active substances that are superficially in the composition and texapon n70 - sulfonic acid - betaine - DEA , here comes to mind the following question how can we calculate the proportion of active substances for any product?

In fact, there are two ways to calculate the proportion of active substancein the Dishwashing liquid.

Laboratory analysis: this is the most accurate way We will talk about it in detail in another article.

Mathematical calculation: this is the approximate way to know the percentage of the active substance in the absence of the laboratory or laboratory tools needed for analysis

The method of calculating the proportion of active substances in the product depends on your knowledge of the concentration of raw materials you use and the source of these materials, so before purchasing your materials you should ask about the source and concentration of the active substance in the raw material.

Example :About how to calculate the concentration of the active substance of a mixture

We have a mixture of 100 kg liquid soap containing

  1. 10 kg texabon N70 (market concentration) Probably 70%
  2.  sulfonic acid 10 kg (market concentration) Mostly 96%
  3.  2 kg DEA (market concentration) Probably 85%
  4.  3 kg pb4 (market concentration) Probably 25%

Total active substance concentration = total (amount of primary matter ? its centennial concentration) = (10 х 70%)   (10 х 96%)   (2 х 85% )   (3 х 25%) = 19.05

Note: If your mixture is less than 100 kg for example 25 kg, turn it into 100 kg mixture calibers and then calculate the concentration, or calculate the concentration and then multiply the result by dividing 100 by the amount of your mixture.

An illustration:

25 kg liquid soap mixture containing 3kg texabon N70 with 70% concentration, sulfonic acid 3 kg with 96% concentration and 1 PB4 1 kg at 25% concentration

Thus the total concentration of active substance = (3 х 70%  3 х 96%  1 х 25%) х 100/25 = 20.92

2- Acidity of liquid soap (PH)

The standard specification for liquid soap acidity is between 6-8, but preferably closer to 7.

And pH is very important because it has an effect on the age of the product and the safety of the consumer where if the value of PH exceeds 7 i.e. the liquid becomes hearts leads to a straw in the hands and if I say about 7 i. the liquid becomes acidic leads to redness in the hands

PH acidity is measured in several ways Most important:

  1. Electronic PH devices
  2.  pens measuring digital
  3.  PH sheetsPH, which depends on color changes and is the easiest way And the most widespread

3- The proportion of sodium chlorine salt in liquid soap:

The standard specification for dishwashing liquid is determined by a maximum of 2% sodium chlorine,

Apart from the specification, we recommend using the least amount of salt possible because it has an impact on the quality of the product where the increase of salt sabotages the foam, so when doing commercial mixtures add some thickeners to the liquid such as tylose to reduce the amount of salt used

Sodium chlorine is laboratory-defined by analysis.

4- Humidity and volatile materials:

In the standard specification, humidity is set at a maximum of 77% and we can replace it with the opposite expression, which is the solid content, i.e. the entire material except water.

The total water in the mixture is the basic amount of water with water in the raw materials

Illustration: 100 kg liquid soap mixture containing

 10 texabons with a concentration of 70%

 10 sulfonic acid with a concentration of 96%

 80 kg water

Water ratio (humidity) = 80  (10 х 30%  + 10 х 4%) = 83.4% 

and therefore solid content = 100% - 83.4% = 16.6%

5- Exterior appearance:

The specification of liquid soap defines the external appearance as homogenous i.e. it does not contain granules, parts or materials that are not dissolved in the liquid and one of the most important specifications is the high transparency of the product because it has a role in giving the beauty of the product and confidence to the consumer and the guide of accuracy in manufacturing and the use of materials of high quality quality

- The pigment used lends an aesthetic to the consumer and knows what the product is before knowing what it smells, so the pigment must be compatible with the smell used.

6- Smell (fragrance)

The standard specification does not require a specific degree of smell, but it is preferable to be medium and beautiful and we must not exaggerate the addition of the fragrance in order not to lead to the opposite effect as the smell may remain hanging in the pots and dishes and this is not likely

7- Validity

The specification limits the validity period to three years from the date of production and for a long shelf life you must use an appropriate preservative for example:

200 g formalin must be added to the 100 kg mixture for 3 years validity

We warn against increasing the use of formol because it is a hazardous substance and its use has been banned in many countries and ph should be finely controlled when using it, and other preservatives such as parmetol can be used ...

In a complete summary of all that we have mentioned, the most important standard specifications for the liquid soap industry:

  1. The ratio of active substance is 18 -20% minimum
  2. Ph acidity of 6-8
  3. Sodium chlorine salt 2% higher
  4. Humidity and volatile materials 77% maximum
  5. The exterior is homogeneous and transparent.
  6. The smell is medium-scented.
  7. Validity period three years from the date of production

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