COLLAPSIBLE DISPENSING TUBE WITH INTERNAL PRESS-TO-CLOSE SEALERS TO PREVENT REVERSE FLOW OF THE CONTENT TOWARDS THE CLOSED END

摘要

A collapsible dispensing tube providing a flexible walled portion having a dispensing nozzle selectively closed with a flip cap on one end and a closed base on another end. Press-to-close sealers are formed on the inner surface of the flexible wall at spaced intervals from the closed end of the flexible wall to the dispensing nozzle. After the content is gradually squeezed toward the dispensing nozzle the sealers are pressed-to-close together to attach the opposed inner surfaces of the flexible wall from the base toward the dispensing nozzle to sequentially form closure seals across the flexible portion of the tube. This prevents the reverse displacement of the content in the tube that occurs when the tube is squeezed in its middle and therefore eliminates the need to roll up the flexible portion of the tube to efficiently dispense the content thereof.