초록 ▼

Pharmaceutical tablets and the like articles are coated with coating material which is sprayed onto a selected part or parts of a bed of the articles. Drying air or gas is passed through a further part or parts of the bed while the selected part or parts of the bed have little or no drying air or ga

Pharmaceutical tablets and the like articles are coated with coating material which is sprayed onto a selected part or parts of a bed of the articles. Drying air or gas is passed through a further part or parts of the bed while the selected part or parts of the bed have little or no drying air or gas passed through them. Articles are continuously transferred between the selected part or parts of the bed and the further part or parts of the bed until all the articles are coated.

대표청구항 ▼

A method for the batchwise coating of pharmaceutical or confectionery tablets, pills, granules or other small articles with a coating material comprising passing through a part or parts of a bed of the articles sufficient air or gas to cause drying of the coating material while a further part or par

A method for the batchwise coating of pharmaceutical or confectionery tablets, pills, granules or other small articles with a coating material comprising passing through a part or parts of a bed of the articles sufficient air or gas to cause drying of the coating material while a further part or parts of the bed have little or no air or gas passing through, applying the coating material to the further part or parts of the bed and then transferring articles between the further part or parts of the bed and the first said part or parts of the bed until all the articles are coated. An apparatus for the batchwise coating of pharmaceutical or confectionery, tablets, pills, granules or other small articles, comprising means for containing a bed of such articles in a way such that air or other gases can be passed through part or parts of the bed while other parts have either a reduced quantity or no air or gas passing through them and wherein a means is provided for applying coating material to the articles in that part or those parts of the bed which have a reduced air or gas flow or no air or gas flowing through them, together with means for interchanging or for transferring articles between the last mentioned part or parts of the bed and the first mentioned part or parts of the bed.