Multi-stroke screen printing method and apparatus

摘要

A screen printing apparatus is described. The apparatus has a plurality of radial arms each having a printing head associated therewith. A target area is in alignment with at least one of the printing heads wherein a design is applied to a target article at the target area by the printing head. A means for providing relative movement between the target area and the printing head provides multiple passes between a squeegee associated with the printing head and the target area. A means for providing a pressure between the squeegee and the target area is regulated such that a first pressure between the squeegee and the target area on a first stroke is not equal to a second pressure between the squeegee and the target area on a subsequent second stroke.

主权项

1. A method of screen printing a fabric target using an automated screen printing apparatus comprising at least one printing head having a flood bar for delivering a quantity of printing fluid to a screen and a squeegee for applying a force by which at least a portion of the printing fluid passes through the screen to the fabric target, the method comprising the steps of:
providing a first stroke with relative movement between the squeegee and the screen and engagement between the squeegee and the screen with a first downward force between the squeegee and the screen causing a first amount of printing fluid to pass through the screen to the fabric target; providing a second stroke with relative movement between the squeegee and the screen and engagement between the squeegee and the screen with a second downward force between the squeegee and the screen causing a second amount of printing fluid to pass through the screen to the fabric target wherein the first downward force is not equal to the second downward force and the first amount of printing fluid passed to the fabric is not equal to the second amount of printing fluid passed to the fabric.