Encapsulation apparatus and process

  • US 5,735,105 A
  • Filed: 10/02/1995
  • Issued: 04/07/1998
  • Est. Priority Date: 12/16/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. A gelatin encapsulation process comprising the steps of:

  • a. casting a continuous first gelatin ribbon and a continuous second gelatin ribbon;

    b. applying food-approved lubricant to a first side of the first gelatin ribbon and to a first side of the second gelatin ribbon;

    c. applying food approved lubricant to a second side of the first gelatin ribbon and to a second side of the second gelatin ribbon to give a lubricated first gelatin ribbon and a lubricated second gelatin ribbon;

    d. uniting the lubricated first gelatin ribbon and the lubricated second gelatin ribbon to form gel pockets and injecting fill material into the gel pockets to give freshly formed gelatin capsules;

    e. cooling the freshly formed gelatin capsules to assist their separation from a net formed by the remainder of the gelatin ribbons;

    f. finishing the freshly formed gelatin capsules by drying them to give finished gelatin capsules; and

    g. recovering the finished gelatin capsules;

    wherein the steps of applying food-approved lubricant to the first and second gelatin ribbons comprise controlling the amount of food-approved lubricant applied to the first and second gelatin ribbons so that the finished gelatin capsules do not require a solvent wash step to remove lubricant, whereby the gelatin encapsulation process is a solvent-free process.

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