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Bidirectional preparation method of coating of blow-off type powder medicament

A coating and medicament technology, which is applied in the direction of making medicines into special physical or taking forms of devices, coatings, etc. Mild, less damage, improved efficiency

Active Publication Date: 2018-01-16
南京图艾生物医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Bidirectional preparation method of coating of blow-off type powder medicament
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Embodiment Construction

[0026] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention but not to limit the scope of the present invention.

[0027] figure 1 It is a structural schematic diagram of the present invention, figure 2 yes figure 1 A-A cross-sectional view of the figure, the corresponding structural names marked in the figure are: partition plate 1, support rod 2, forming mold 3, vent hole 4, edge part 5 of the blocking tool, blocking piece 6, and blocking tool 7.

[0028] The two-way preparation method of the coating of this blow-off type powder medicament comprises the following steps:

[0029] Step (1): Prepare the forming mold: Prepare the forming mold so that the two ends of the forming mold are symmetrical, and a partition is arranged in the middle. Both ends of the forming mold are used for coating...

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Abstract

The invention discloses a bidirectional preparation method of a coating of blow-off type powder medicament, which comprises the following operating steps: step (1) preparing a forming mold and makingboth ends of the forming mold symmetric, step (2) preheating the forming mold, step (3) spraying coating materials, step (4) cooling the forming mold, step (5) stripping the coating. The bidirectionalpreparation method of the coating of blow-off type powder medicament can achieve simultaneous preparation of the coating at both ends of the forming mold and double the efficiency of the coating preparation. The environment for preparing the coating at both ends is consistent and the finished product quality of the coating is same.

Description

technical field [0001] The invention relates to a two-way preparation method for blow-off powder medicament coating, which 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 dissol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61J3/00B29C41/08B29C41/46B29C41/42
Inventor 史月龙吴英亮汤静吴坤林刘文斌孔玉琴曾宋君
Owner 南京图艾生物医药科技有限公司
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