Apparatus and method for integrated screen printing and laser treatment of materials

• US 7,318,377 B2
• Filed: 04/07/2005
• Issued: 01/15/2008
• Est. Priority Date: 04/07/2005
• Status: Expired due to Fees

• Current Assignee: TechnoLines LP
• Original Assignee: GFSI Incorporated (Hanesbrands Incorporated)
• Inventors: Espy, Jon, Althaus, Ray
• Primary Examiner(s): Evanisko; Leslie J.
• Application Number:
  US11/102,115
• Publication Number:
  US 20060225587A1
• Time in Patent Office: 1,013 Days
• Field of Search: 101/114, 101/115, 101/126, 101/129, 101/474, 101/484
• US Class Current: 101/129
• CPC Class Codes: B41F 15/0863 with a plurality of flat screens mounted on a turntable
• CPC Class Codes: B41M 1/12 Stencil printing; Silk-screen printing
• CPC Class Codes: D06B 11/0093 Treatments carried out during or after a regular application of treating materials, in order to get differentiated effects on the textile material
• CPC Class Codes: D06C 23/02 by singeing, teasing, shearing, etching or brushing

Abstract

An apparatus and method for treating material using a screen print machine having multiple stations with a printing head for screen printing ink installed at a first station and a laser device for producing graphics installed at a second station. A PLC is connected to the laser device and the second station of the screen print machine, and is programmed to receive control signals for a printing head at the second station and operational status signals from the laser. Based upon the received signals the PLC sends signals which mimic status indications of a printing head located at the second station to the screen print machine based upon the operational status of the laser. The PLC also sends signals to control the laser in synchronization with the printing head based upon the received control signals for a printing head at the second station.

Claims

1. A method of treating portions of material comprising:

providing a screen print machine having multiple stations and a turntable with pallets to carry the material portions from station to station, said machine providing control signals to control the operation of printing heads at one or more of the stations, and said machine adapted for receiving status indications from the printing heads to control the operation of the turntable;

providing a printing head for screen printing ink on the material portions at a first station;

providing a laser device at a second station for producing graphics on the material portions on the turntable, the laser device providing status signals indicative of the operational status of the laser device, and said laser device adapted for receiving control indications to control the operation of the laser device;

connecting a PLC between the laser device and the second station of the screen print machine, the PLC programmed to receive control signals from the screen printing machine for a printing head at the second station, and to receive status signals from the laser device indicative of the operational status of the laser device, to send indications based upon the operational status of the laser device to the screen print machine, which indications mimic status indications of a printing head located at the second station, and to send control signals to control the operation of the laser device in synchronization with the printing head at the first station based upon the received control signals for a printing head at the second station; and

processing the material portions on the pallets of the screen print machine.

2. The method of claim 1 further comprising:

providing a safety door for the laser device, which door is closable to prevent exposure of extraneous materials to the laser device, and wherein the PLC is programmed to prevent operation of the turntable when the safety door is closed.

3. An apparatus for treating portions of material comprising:

a screen print machine having multiple stations and a turntable with pallets to carry the material portions from station to station, said machine providing control signals to control the operation of printing heads at one or more stations, and said machine adapted for receiving status indications from the printing heads to control the operation of the turntable;

a printing head for screen printing ink on the material portions installed at a first station on the screen print machine;

a laser device installed at a second station for producing graphics on the material portions on the turntable, the laser device providing status signals indicative of the operational status of the laser device, and said laser device adapted for receiving control indications to control the operation of the laser device; and

a PLC in communication with the laser device and the second station of the screen print machine, the PLC programmed to receive control signals from the screen printing machine for a printing head at the second station, and to receive status signals from the laser device indicative of the operational status of the laser device, to send indications based upon the operational status of the laser device to the screen print machine, which indications mimic status indications of a printing head located at the second station, and to send control signals to control the operation of the laser device in synchronization with the printing head at the first station based upon the received control signals for a printing head at the second station.

4. The apparatus of claim 3, wherein the laser device includes a safety door which is closable to prevent exposure of extraneous materials to the laser device, and wherein the PLC is programmed to prevent operation of the turntable when the safety door is closed.