When you enter the detergent supply market, you will see that some dishwashing liquids have become two-phase in the cold seasons! What is the reason?

The cause of becoming two-phase in the dishwashing liquid depends on a number of factors: one of the

main reasons for detergent formulations is the use of polyvinyl alcohol in the formulation of the dishwashing liquid.

Polyvinyl Alcohol (abbreviated as PVA) is a type of industrial adhesive that is used in the production of

adhesives, photographic paperwork, chemical fertilizers, etc. This substance can be

used to thicken the liquid; but with some differences, the temperature separates some materials from the dishwashing liquid composition and causes them to become two-phase.

Another problem with the use of PVA in liquid formulation is the shortening of expiry date,

and in addition, it causes that skin-protecting compounds in the formulation become

ineffective and it also leads to skin sensitivities for the consumer. It also reduces the washing power depending on the amount of consumption, as it is not of the detergents and that a part of the washing power

of the raw materials in the formulation of the dishwashing liquid are just used to dissolve PVA in the liquid.

Another characteristic of PVA is its anti-foaming feature. PVA is a strong anti-foam, and those

who use this material in their formulas produce a type of dishwashing liquid with a very low foam amount,

while any consumer of dishwashing liquid will measure its dishwashing according to the amount of the foam of the consuming liquid.

How to detect fluids containing PVA?

1. With warming and cooling of the liquid, an intense two-phase formation occurs in a liquid-containing it, so that when the temperature reaches zero degree, we will observe very high two-phase formation in the liquid.
2. When washing with these types of liquids, the cleansing property is significantly low.
3. Usually these types of liquids have very low foam production.
4. If they stay in the warehouse for 3 months, their smell will change and they will get an unpleasant odor
5. When washing with dishwashing liquid containing polyvinyl alcohol (PVA), the liquid is not easily removed from the hands.

Damages on the use of PVA in the formula for dishwashing liquid and other detergents:

1. A little difference in temperature (cooling of the air) causes some of the materials to separate from the dishwashing liquid structure and cause them to settle, so that the customer refuses to buy liquid by seeing these two-phase or deposits
2. With consumption of it (PVA), we see a sharp decrease in the expiration date of dishwashing liquid.
3. The skin-protecting compounds in the formulation become ineffective and it causes skin sensitivities for the consumer, so that the skin of the hand of consumers become flaky
4. This substance highly decreased the activity power of detergent and we see a very low quality dishwashing liquid.
5. PVA is strong anti-foam and that dishwashing liquid which have used a very small amount of it in their compositions, produce very low foam.

Therefore, when buying dishwashing liquid formula and also any other detergent’s formula, ensure that its formula is without PVA and CMC.

How to make a dishwashing liquid that does not deposit, while maintaining its detergency?

Do not use the PVA and other non-detergent concentrating constituents in making dishwashing liquid. Dishwashing liquid formulation should be concentrated with its activity, i.e. with raw materials of the detergent; in this case, in addition to maintaining the power of detergency, the quality of skin-protecting materials are preserved in the formulation, and observing other qualitative factors in detergent production, settlement does not occur in any dishwashing liquid, even at high temperature differences.

Regarding other international quality standards in detergent production, Maad Steel Company offers detergent formulations, which in no way show any physical and chemical changes such as sedimentation and opaque variations in temperature variations, will be observed in detergents, especially at very low temperatures.