The two types of capsules produced by capsule filling machine molds are soft capsules and hard capsules. Which is better, soft capsule shell or hard capsule shell?
The components contained in the soft capsule shell (fully automatic capsule filling machine) are roughly similar to those in the hard capsule shell, and the composition of its soft shell mainly includes four types of substances: gelatin, plasticizers, and additives.
In addition to meeting the requirements of the pharmacopoeia, the quality of gelatin should also meet the requirements of gel strength (freezing force) and viscosity. For example, the freezing force is 150 to 250 Bloom, and the viscosity is 2.5 to 4.5 mpa. s (centipoise). For drugs with strong moisture absorption, gelatin with low freezing strength should be used. The masking agent uses titanium dioxide, with a dosage of 2-12 grams per kilogram of gelatin.
Seasoning agents such as 5% sucrose can be added to increase sweetness, enhance chewiness, and adjust hardness. A mixture of para hydroxybenzoic acid methyl ester (1.6%) and para hydroxybenzoic acid co ester (0.04%) is used as a preservative. The bag may contain a certain amount of water, and the general finished product is 6% -13% Overall, soft capsules have more advantages than hard capsule shells.