A method of coating a plurality of articles in a continuous process using polymer melt, the method comprising: applying a first coating layer of a first molten polymer film on a plurality of articles held on a plurality of first cavities in a first roll for generating a plurality of articles coated partially with the first polymer film; transferring the plurality of articles coated partially with the first coating layer from the first roll to a second roll; exposing an uncoated portion of the plurality of articles coated partially with the first coating layer; applying a second coating layer of a second molten polymer film on the plurality of articles held on a plurality of second cavities in the second roll for generating a plurality of articles fully coated with the first coating layer and the second coating layer; encapsulating the plurality of articles between the first coating layer and the second coating layer by sealing the first coating layer and the second coating layer coated on the plurality of the articles by melt fusing of the second polymer film with the first polymer film on an overlapping area of the first polymer film and the second polymer film, and wherein the encapsulated plurality of articles is released over a time period by a diffusion of the encapsulated plurality of articles through the first coating layer or the second coating layer; wherein the plurality of articles are held in the plurality of first cavities and in the plurality of second cavities by a vacuum suction at a bottom of the plurality of first cavities and the plurality of the second cavities and wherein a pulling force of the vacuum suction under the plurality of articles is adapted to pull the first coating layer and the second coating layer respectively to an opposing surface of the plurality of articles. applying a first coating layer of a first molten polymer film on a plurality of articles held on a plurality of first cavities in a first roll for generating a plurality of articles coated partially with the first polymer film; transferring the plurality of articles coated partially with the first coating layer from the first roll to a second roll; exposing an uncoated portion of the plurality of articles coated partially with the first coating layer; applying a second coating layer of a second molten polymer film on the plurality of articles held on a plurality of second cavities in the second roll for generating a plurality of articles fully coated with the first coating layer and the second coating layer; encapsulating the plurality of articles between the first coating layer and the second coating layer by sealing the first coating layer and the second coating layer coated on the plurality of the articles by melt fusing of the second polymer film with the first polymer film on an overlapping area of the first polymer film and the second polymer film, and wherein the encapsulated plurality of articles is released over a time period by a diffusion of the encapsulated plurality of articles through the first coating layer or the second coating layer; wherein the plurality of articles are held in the plurality of first cavities and in the plurality of second cavities by a vacuum suction at a bottom of the plurality of first cavities and the plurality of the second cavities and wherein a pulling force of the vacuum suction under the plurality of articles is adapted to pull the first coating layer and the second coating layer respectively to an opposing surface of the plurality of articles.