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 : 28 / 03 / 2026
In stock
Manufacturer : 1 year for Problems encountered during coating application

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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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

Nora
Good afternoon, please confirm that tomorrow until 15:30 we will receive our shipment in Munich? Contact the transportation company. 02/04/2026 04:35

Roman Tsibulsky
Hello Nora ! Representatives of the transportation company on the delivery status of your shipment said that it will be in Munich in a few days. Please expect it. 02/04/2026 04:38

Brooklyn
Good afternoon, I am hoping tomorrow until 13:30 to get the UNIC 600A Tablet Press in Braila ! Please comment. 02/04/2026 04:45

Roman Tsibulsky
Good day, Brooklyn! Our manager has communicated with the delivery service, the equipment will be delivered to Braila at your address. Please let us know when you receive it. 02/04/2026 04:48

James
Roman, can you tell me if my rotary tablet press RZJ-35 has been shipped yet? Don't send it yet, I will send to your factory in China drawings of new punches, different design. 02/04/2026 04:55

Roman Tsibulsky
Good afternoon, James! We're pausing the shipment. Send drawings to the office mail. The terms of production of new punches 20 working days. 02/04/2026 04:56

Emily
Hello, I will quickly ask, what about BG-80 film coating boiler and HX-7 ultrasonic machine for sealing plastic tubes, contract No. 11 ???? 02/04/2026 05:05

Roman Tsibulsky
Emily, good afternoon! Your positions are produced by different factories, for HX-7 the factory reported that it is 90% ready, for BG-80 we are waiting for an answer in the interval from 14:00-16:00. We will report back immediately. 02/04/2026 05:09

Aria
Remember me? There's a delivery in the Bratislava 02/04/2026 05:15

Roman Tsibulsky
Aria, Hello! We remember all our customers. your blister honey filling machine model MN-82 will be as agreed in Bratislava . 02/04/2026 05:16

Emma
Natalia tell me, automatic double-sided labeling machine ST-36 has left the factory, invoice #118. 02/04/2026 05:25

Roman Tsibulsky
Hello Emma, The equipment has been shipped from the transit warehouse and delivery is proceeding as planned. No delays are expected. 02/04/2026 05:27

Lily
Roman, our company bought VL-100 V-shaped powder mixer, but it is not enough for us, can we return it and exchange it for V-300 model? 02/04/2026 05:35

Roman Tsibulsky
Lily, good afternoon. When we corresponded with you, I warned you that this is a model with a small load. Unfortunately we can not pick up the equipment. As an option, we will offer our customers with a discount. 02/04/2026 05:37

James
Roman hello, what about the automatic filling and sealing machine for sterile ampoules ABF-4D-1, invoice #101. 02/04/2026 05:45

Roman Tsibulsky
Good afternoon, James! We are making a request to the manufacturer. Tomorrow we will send photos and video of testing to your e-mail. 02/04/2026 05:47

Lucy
RZW-29 rotary tablet press in Athens. Regards, Lucy. 02/04/2026 05:55

Roman Tsibulsky
Lucy, Delivery will be made tomorrow until 17:30 to Athens . Please have the movers ready. The weight of the equipment is heavy. 02/04/2026 05:59

Zoe
Tell me the NJ-120 automatic capsule machine went ? 02/04/2026 06:05

Roman Tsibulsky
Zoe, good afternoon. Yes, already closer to evening you will receive it. Taking into account the heavy weight of the equipment, we ask you to take care of unloading by forklift in advance. The transportation company does not provide unloading. Only delivery to the address. 02/04/2026 06:07