In terms of compatibility with other ingredients, both HPMC and HEC are generally compatible with a wide range of chemicals and additives. However, HPMC is known to be more resistant to enzyme degradation, which can be important in some pharmaceutical and food applications where stability is critical. The dispersion process involves several steps. Initially, HPMC powder is mixed with cold water to initiate hydration. This is followed by the addition of heat or agitation to facilitate the breakdown of agglomerates and achieve a smooth, particle-free solution. The use of high-shear mixers or dissolvers can significantly improve the dispersion quality, reducing the time required and preventing the formation of lumps. Furthermore, HEC is biocompatible and non-toxic, making it safe for use in a wide range of applications. It is also environmentally friendly, as it is derived from renewable resources and can be easily disposed of through biodegradation. These qualities have led to the widespread adoption of HEC in various industries, including pharmaceuticals, food and beverage, and personal care. In the cosmetics industry, HPMC is used as a film former and hair styling agent. The viscosity grade affects the product's ability to form a smooth and durable film on the skin or hair, with higher viscosity grades providing better hold and longevity. The construction industry employs HPMC powder as a waterproofing agent and an additive in concrete mixtures
(2) Film forming machine:
Due to its film-forming properties, HPMC can be used to manufacture coatings for tablets and capsules. This coating serves a variety of purposes, including improving appearance, masking taste, and protecting active ingredients from environmental factors.