СATALOGUE / PHARMACEUTICAL PRODUCTION TECHNOLOGIES / FILM-COATING OF TABLETS / Problems encountered during coating application

Problems encountered during coating application

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СATALOGUE / PHARMACEUTICAL PRODUCTION TECHNOLOGIES / FILM-COATING OF TABLETS / Problems encountered during coating application

Problems encountered during coating application

As with sugar coatings, problems can occur after or during the film coating process. Tablets, Pellets and Pellets to which the coating is applied may not be strong enough or may delaminate during the coating process. Due to the fact that film coatings are relatively thin, their ability to hide defects is significantly lower than that of sugar coatings. Various problems can arise when using film coating. One example is sticking, which occurs when the liquid feed rate exceeds the drying rate, causing tablets, pellets and granules to stick together and further break down.

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Information updated: 07 / 09 / 2026
Available for
Production: 1 year на оборудование для нанесения покрытия

Model: Coating of tablets and capsules

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Knowledge of the physicochemical properties of the various excipients used in film-coated dosage forms and how they interact with each other, as well as knowledge of the parameters of the coating process (temperature, feed air velocity, etc.) allows the technologist to avoid the occurrence of most defects associated with internal stress.

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Articles — A genre of journalism in which the author sets the task of analyzing social situations, processes, phenomena, primarily from the point of view of the regularities underlying them.

Technical specifications

Another example is the formation of an uneven or rough film, which is the result of premature drying of atomized liquid droplets or the result of spraying a coating solution that is too viscous. Uneven coloring or inhomogeneity of the coating color may result from poor distribution of the coloring agent in the coating. This defect is usually encountered either when soluble colorants are used in aqueous coatings (where migration of the colorant is possible), or when the solvent remaining in the film changes and the plasticizer migrates (if the colorant is soluble).

Additional information

The use of pigments in the coating process significantly reduces the formation of this defect. However, uneven coloration may result from insufficient pigment distribution in the coating solution. In conclusion, some defects may result from internal stresses that increase in the film as it dries. One example of such defects may be the formation of cracks that occur when the stresses exceed the tensile strength of the film.

Order status tracking

Roman Tsibulsky +79853643808 now online

Wyatt
Good afternoon, I am hoping as agreed to get the UNIC 600A Tablet Press in Valencia ! Please comment. 13/09/2026 05:13

Roman Tsibulsky
Good day, Wyatt! Our manager has communicated with the delivery service, the equipment will be delivered to Valencia at your address. Please let us know when you receive it. 13/09/2026 05:15

Mia
Dear Roman, how are you doing? Our company bought more than a year ago a filling and capping machine for penicillin vials, model XL-10. We got financing this year and want the same machine. Will you give us a discount? 13/09/2026 05:23

Roman Tsibulsky
Mia, thank you. We're doing great. Of course we will give a discount to the regular customer. Delivery of equipment also in San Diego ? Contact Natalia, she will send the contract and invoice. 13/09/2026 05:25

Bella
YR-90 dry and wet powder granulator YR-90 month has already passed. Hurry up the factory. 13/09/2026 05:33

Roman Tsibulsky
Bella, good afternoon. The factory has shipped your equipment to our representative, now is forming a consolidated shipment for shipment to customs. We will keep you informed. 13/09/2026 05:36

Mateo
Rotary tablet press RZK-25 I want to order with delivery to Berlin 13/09/2026 05:43

Roman Tsibulsky
Good day, Mateo We have checked the information on your request, unfortunately the factory has stopped production of this model of equipment. Send to the mail a description of your task, or contact your manager. We will help in any case with the choice. 13/09/2026 05:47

Scarlett
Dear Roman, how are you doing? Our company bought more than a year ago a filling and capping machine for penicillin vials, model XL-10. We got financing this year and want the same machine. Will you give us a discount? 13/09/2026 05:53

Roman Tsibulsky
Scarlett, thank you. We're doing great. Of course we will give a discount to the regular customer. Delivery of equipment also in San Jose ? Contact Natalia, she will send the contract and invoice. 13/09/2026 05:55

Brooklyn
Roman hello, what about the automatic filling and sealing machine for sterile ampoules ABF-4D-1, invoice #101. 13/09/2026 06:03

Roman Tsibulsky
Good afternoon, Brooklyn! We are making a request to the manufacturer. Tomorrow we will send photos and video of testing to your e-mail. 13/09/2026 06:05

Elizabeth
Good afternoon, we received the PR-15 powder dispenser in plastic vials, scheduled in the morning to open the box and test. 13/09/2026 06:13

Roman Tsibulsky
Elizabeth, good afternoon. Great news, please send a photo and video report to WhatsApp +79853643808. 13/09/2026 06:16

Alexander
Vacuum lyophilic freeze dryer LG-30, can we get faster than the contract ? 13/09/2026 06:23

Roman Tsibulsky
Hello Alexander, Shipments go through several time stages. Manufacturing, delivery from the factory to the warehouse in Beijing or Shanghai, waiting for batch collection, customs clearance and delivery. It's hard to predict. 13/09/2026 06:26

Isabella
Rotary tablet press RZK-25 I want to order with delivery to Berlin 13/09/2026 06:33

Roman Tsibulsky
Good day, Isabella We have checked the information on your request, unfortunately the factory has stopped production of this model of equipment. Send to the mail a description of your task, or contact your manager. We will help in any case with the choice. 13/09/2026 06:36

Dylan
Excuse me, I have important information, please do not deliver my shipment, automatic filling and sealing machine for glass ampoules ALG-10 to Tossa de Mar, but immediately upon arrival send it to Reykjavik. 13/09/2026 06:43

Roman Tsibulsky
Hello Dylan, we will try to resolve this issue for you. 13/09/2026 06:46