Process for enrobing a core

• US 6,946,156 B2
• Filed: 05/15/2002
• Issued: 09/20/2005
• Est. Priority Date: 05/15/2002
• Status: Expired due to Term

• Current Assignee: Johnson & Johnson Consumer Inc. (Johnson & Johnson)
• Original Assignee: McNeil-PPC Incorporated (Johnson & Johnson)
• Inventors: Bunick, Frank J.
• Primary Examiner(s): Tsoy, Elena
• Application Number:
  US10/146,722
• Publication Number:
  US 20030215563A1
• Time in Patent Office: 1,224 Days
• Field of Search: 427/2.1, 427/2.14, 427/2.22, 427/2.23, 427/402, 427/414, 427/415, 427/420
• US Class Current: 427/2.1
• CPC Class Codes: A61K 9/2866 Cellulose; Cellulose derivatives, e.g. hydroxypropyl methylcellulose
• CPC Class Codes: A61K 9/2893 Tablet coating processes mechanical aspects A61J3/06

Abstract

A process for enrobing a core, such as a tablet core, uses a coating that is made of a patterned film having portions that are visually distinct (e.g, differently colored) from one another and having a transition line segment between these visually distinct portions. At least a portion of an outer surface of the core is covered with the film, such that the transition line segment forms a substantially continuous transition line on the coating and such that a film seam is formed which is different from the transition line. Alternatively, the coating is formed from two such patterned films, in which case the outer surface of the core is covered with the two films such that the two transition line segments cooperate to form a substantially continuous transition line on the coating and a film seam is formed which is different from the transition line. Prior to covering the outer surface of the core, the two films may be oriented such that the resulting enrobed core has a bi-colored coating with two visually distinct portions each lying on opposite sides of the transition line of the coating. The two films may also be oriented such that the resulting enrobed core has four alternately arranged colored portions, two of which are of a first color and the other two of which are of a second color, thereby resulting in a “checkerboard” effect.

Claims

1. A process for enrobing a core comprising:

providing a coating formed from at least one film having a thickness and a transition line segment between visually distinct portions thereof that lie on opposite sides of the transition line, wherein each of said portions has a visual distinction that substantially traverses the film thickness; and

covering at least a portion of an outer surface of the core with said at least one film such that a film seam is formed which lies substantially in a first reference plane, which passes through the core, and such that said transition line segment lies substantially in a second reference plane, which passes through the core and intersects said first reference plane, wherein said first reference plane is not congruent with said second reference plane.

2. The process according to claim 1, wherein said at least one film includes a first film having a first transition line segment between visually distinct portions thereof and a second film having a second transition line segment between visually distinct portions thereof.

3. The process according to claim 2, further comprising:

covering a first portion of said outer surface of the core with said first film such that said first transition line segment lies substantially in said second reference plane; and

covering a second portion of said outer surface of the core with said second film such that said second transition line segment lies substantially in said second reference plane.

4. The process according to claim 3, wherein said first and second transition line segments cooperate to form a transition line on said coating.

5. The process according to claim 4, wherein said first film has a first portion lying on one side of said first transition line segment and a second portion lying on an opposite side of said first transition line segment, said first and second portions of said first film being visually distinct from each other, and said second film has a first portion lying on one side of said second transition line segment and a second portion lying on an opposite side of said second transition line segment, said first and second portions of said second film being visually distinct from each other.

6. The process according to claim 5, wherein said first portion of said first film has a first visual appearance, said second portion of said first film has a second visual appearance, said first portion of said second film has a third visual appearance and said second portion of said second film has a fourth visual appearance.

7. The process according to claim 6, wherein said first visual appearance of said first portion of said first film is substantially the same as said third visual appearance of said first portion of said second film, and second visual appearance of said second portion of said first film is substantially the same as said fourth visual appearance of said second portion of said second film, said first and third visual appearances being different from said second and fourth visual appearances.

8. The process according to claim 7, further comprising:

orienting said first and second films, prior to covering the outer surface of the core, such that said first portions of said first and second films lie on one side of said transition line of said coating, whereby said first portions are adjacent to one another and positioned on opposite sides of said film seam, and said second portions of said first and second films lie on an opposite side of said transition line of said coating, whereby said second portions are adjacent to one another and positioned on opposite sides of said film seam.

9. The process according to claim 8, wherein said first and third visual appearances are characterized by a first color and said second and fourth visual appearances are characterized by a second color that is different from said first color, whereby said coating of the enrobed core includes at least two differently colored portions.

10. The process according to claim 7, further comprising:

orienting said first and second films, prior to covering the outer surface of the core, such that said first portion of said first film and said second portion of said second film lie on one side of said transition line, whereby said first portion of said first film and said second portion of said second film are adjacent to one another and positioned on opposite sides of said film seam, and said second portion of said first film and said first portion of said second film lie on an opposite side of said transition line, whereby said second portion of said first film and said first portion of said second film are adjacent to one another and positioned on opposite sides of said film seam.

11. The process according to claim 10, wherein said first and third visual appearances are characterized by a first color and said second and fourth visual appearances are characterized by a second color that is different from said first color, whereby said coating of the enrobed core includes at least four colored portions that are alternately arranged on said coating.

12. The process according to claim 3, wherein each of said first and second films includes free edges.

13. The process according to claim 12, wherein said free edges are slightly spaced apart from one another, thereby forming said film seam of said coating.

14. The process according to claim 12, further comprising:

sealing said free edges of said first and second films together, thereby forming said film seam of said coating.

15. The process according to claim 14, wherein said free edges of said first and second films abut one another to form said film seam of said coating.

16. The process according to claim 14, wherein said free edges of said first and second films overlap with one another to form said film seam of said coating.

17. The process according to claim 3, wherein said transition line of said coating is curvilinear.

18. The process according to claim 1, wherein said transition line segment is curvilinear.

19. The process according to claim 1, wherein the core is a tablet.