Forming mold for two-way coating of powder medicament

Abstract

The invention discloses a molding die for achieving bidirectional coatings of powder drugs. The molding die comprises a die body. The die body is in a symmetric shape. A middle partition plate is arranged at the position of the radial symmetry axis of the die body. A heating system and a cooling system are arranged in the die body. The control line of the heating system and the control line of thecooling system each stretch out from a corresponding clearance. According to the molding die, the coatings can be prepared at the two ends of the molding die at the same time; the efficiency of preparing the coatings is improved by one time; the environments of preparing the coatings at the two ends are consistent; the finished product quality of the coatings is the same; the coatings are stripped from the molding die in a manner of blowing air to the inner sides of the finished coatings; damage to the finished coatings is minimum; and the stripping manner is moderate.

Description

technical field [0001] The invention relates to a molding die for realizing two-way coating of powder medicament, and belongs to the technical field of pharmaceutical coating. Background technique [0002] Powdered medicaments are easy to absorb moisture in the air, become damp and deteriorate, and are easy to splash during transportation and use. Therefore, in order to improve the use safety of powdered medicaments and ensure product quality, usually, powdered medicaments need to be coated before leaving the factory , and inject the powder medicament into the coating, the coating can prevent the powder medicament from contacting with the atmosphere, keep it dry, avoid oxidation and moisture absorption deterioration, and can also quantify the medicament according to the coating. [0003] At present, the coating technology of commercially applied solid dosage forms is liquid coating technology. Usually, the mixture of polymer materials, pigments and excipients is dissolved i...

AI Technical Summary

Problems solved by technology

[0004] However, the inherent disadvantages caused by the use of organic solvents or water are becoming more and more obvious, and are gradually not accepted by the pharmaceutical industry

These disadvantages include the evaporation of organic solvents or water, which is very energy-intensive

This significantly increases the cost of coating and inevitably prolongs the operation time

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