Application of hydroxypropyl methyl cellulose (HPMC) in detergent

Hydroxypropyl methyl cellulose is a kind of propylene glycol ether of methyl cellulose, wherein hydroxypropyl and methyl are combined with the anhydrous glucose ring of cellulose by ether bond, non-ionic cellulose ether, easy to disperse in cold water, the solution can form a film after drying, aqueous solution is pseudoplastic fluid characteristics, with stirring effect. After heating, reversible hot gel is formed. The gel formation temperature depends on the relative content and degree of substitution of methyl and hydroxypropyl, but the surface tension increases when heating, which is contrary to the properties of ordinary surfactants. The concentration at the interface makes the interface concentration much higher than the concentration inside the solution. Commonly used as food water holding agent, reversible hot gel properties can avoid a variety of fillings (buns, dumplings, etc.) due to excessive heating and shrinkage "hair dry", used for fried French fries can reduce the oil content and oil consumption of products, and increase the surface activity and stable foam function, can lead to increased volume of baked products, in the bread mixed with rice flour or soybean powder can form a good organizational structure.

If it is fabric, hydroxypropyl methyl cellulose HPMC is a kind of anti-stain readsorption components, in washing, priority adsorption to the surface of the fiber, prevent dirt deposition above, rinse can be washed away. The English concept probably belongs to the role of "soil release" (also considered as antiredeposition soil, but the former is more image).

Hydroxypropyl methyl cellulose HPMC is a non-ionic thickener, specific have different models, different models viscosity is different, can also improve the fluid. Can be used in detergents, shampoo, body wash, face wash, also can be used in emulsifying systems and other thickening.

Advantages of use in detergent:

1. As a non-ionic thickener, the viscosity of the thickened surface active system is relatively stable with temperature change, and it will not be cold resistant and easy to jelly as Nacl is added.

2, electrolyte resistance

3, improve the fluid of the system, with a drawing sense, while making the cleaning effect more smooth, improve the skin sense, improve dry and wet hair combing

But it is easy to condense in cold water, so pay attention to the correct way to dissolve HPMC