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 : 10 / 12 / 2025
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

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Liam
Good afternoon! semi-automatic liquid filling machine in barrels DF-13 , a copy of the payment is sent to the post. Start the order to work. 27/12/2025 22:30

Roman Tsibulsky
Liam, good afternoon! We have seen your payment, we receive SMS from the bank. Please send drawings of barrels and answers to our questions in correspondence. 27/12/2025 22:33

Elijah
The MZ-10 expiration date and date handheld printer has still not been delivered. The driver did not answer and dropped calls yesterday. 27/12/2025 22:40

Roman Tsibulsky
Hello Elijah, Transportation has advised that In the afternoon driver will definitely deliver the box to your address. We apologize. 27/12/2025 22:44

Mason
You have to pay for delivery to Hum over and above the delivery amount in the contract ? 27/12/2025 22:50

Roman Tsibulsky
Mason, The catalog shows the price with door delivery. The unloading of the equipment, upon receipt of the shipment, will be charged to you separately. 27/12/2025 22:54

Evelyn
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. 27/12/2025 23:00

Roman Tsibulsky
Good afternoon, Evelyn! We're pausing the shipment. Send drawings to the office mail. The terms of production of new punches 20 working days. 27/12/2025 23:03

Samuel
For shipping to Vienna do you have to pay anything extra ? 27/12/2025 23:10

Roman Tsibulsky
Good day Samuel, In our catalog, all prices are inclusive of shipping to the customer's door. Delivery to Vienna is included. 27/12/2025 23:11

Isabella
I would like to discuss the purchase of model FK-05 - capping and screw cap machine. 27/12/2025 23:20

Roman Tsibulsky
Good day. You can call on tel. +79853643808 or to the mail specified on the site. Isabella, this chat is only for tracking shipments. 27/12/2025 23:21

Eleanor
Vacuum lyophilic freeze dryer LG-30, can we get faster than the contract ? 27/12/2025 23:30

Roman Tsibulsky
Hello Eleanor, 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. 27/12/2025 23:31

Savannah
We have sent to info@minipress.ru photos of the damaged box with induction welding membrane machine FG-08. Please call back. 27/12/2025 23:40

Roman Tsibulsky
Good day, Savannah! Damage to the packaging is unfortunately a common practice in transportation. Please carefully unpack the shipment and send us a series of photos. We will take a look and take action. 27/12/2025 23:42

Michael
LB-205 horizontal automatic wet alcohol wipes packaging machine delivery status ...thank you 27/12/2025 23:50

Roman Tsibulsky
Hello Michael, it is too early to check the status of your order. In 30 days only the epat of production will be completed. 27/12/2025 23:52

Logan
We're from New Jersey, we paid for the equipment on your invoice yesterday. Has the payment been received? How long will it take to deliver to us? 28/12/2025 00:00

Roman Tsibulsky
Logan, hello. Payment is credited to our settlement account. Term of manufacture of your equipment by the factory 20 working days, delivery from the factory to our warehouse in the USA 1 month, delivery from the warehouse in San Francisco 15 calendar days. 28/12/2025 00:01