Closure integrity test method for hot-fill bottling operation
First Claim
1. A method for evaluating the integrity of a closure on a hot-filled light transmissive container having an interior and an exterior and wherein the hot-filled light transmissive container is subjected to a pressurized spray of a cooling medium, comprising:
- providing the cooling medium with an effective amount of a fluorescing dye composition having a fluorescing agent;
spraying the hot-filled light transmissive container with the cooling medium having the fluorescing dye composition;
rinsing the exterior of the hot-filled light transmissive container to remove substantially all fluorescing agent therefrom;
subjecting the hot-filled light transmissive container to ultraviolet light to activate any fluorescing agent that may have migrated past the closure to the interior of the hot-filled light transmissive container; and
viewing the hot-filled light transmissive container to determine the presence or absence of activated fluorescing agent.
3 Assignments
0 Petitions
Accused Products
Abstract
A method for evaluating the integrity of the closure on a hot-filled container in which the hot-filled container is subjected to a pressurized spray of cooling medium, including the step of providing a cooling medium having an effective amount of a fluorescing dye contained therein, is provided. The sealed container then is sprayed with the cooling liquid. After the container has exited the cooling portion of the filling and sealing operation, the container is subjected to ultraviolet light to activate any fluorescing dye which may have migrated past the closure into the interior of the container. The container is then viewed to determine the presence or absence of activated dye.
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Citations
16 Claims
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1. A method for evaluating the integrity of a closure on a hot-filled light transmissive container having an interior and an exterior and wherein the hot-filled light transmissive container is subjected to a pressurized spray of a cooling medium, comprising:
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providing the cooling medium with an effective amount of a fluorescing dye composition having a fluorescing agent; spraying the hot-filled light transmissive container with the cooling medium having the fluorescing dye composition; rinsing the exterior of the hot-filled light transmissive container to remove substantially all fluorescing agent therefrom; subjecting the hot-filled light transmissive container to ultraviolet light to activate any fluorescing agent that may have migrated past the closure to the interior of the hot-filled light transmissive container; and viewing the hot-filled light transmissive container to determine the presence or absence of activated fluorescing agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for evaluating the integrity of a closure on a hot-filled light transmissive container having an interior and an exterior and wherein the hot-filled light transmissive container is subjected to a pressurized spray of a cooling medium, comprising:
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providing the cooling medium with an effective amount of a fluorescing dye composition having a fluorescing agent; spraying the hot-filled light transmissive container with the cooling medium having the fluorescing dye composition while also cooling the hot-filled light transmissive container with a pressurized spray of the cooling medium; subjecting the hot-filled light transmissive container to ultraviolet light to activate any fluorescing agent that may have migrated past the closure to the interior of the hot-filled light transmissive container; and viewing the hot-filled light transmissive container to determine the presence or absence of activated fluorescing agent. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification