Marking fluorocarbon surfaces

Details Marking fluorocarbon surfaces Marking fluorocarbon surfaces

1988-11-08

1992-02-25

Hamilton, Cynthia

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Readily visible image formation

430945, 21912168, G03C 516, G03F 726

Patent

active

050912844

ABSTRACT:
Most fluorocarbon polymer surfaces (especially PTFE and FEP) have hitherto been considered unsuitable for marking by laser printing, which would have obvious attractions for marking such materials in high performance electric cables. It has now been found that such surfaces can be made receptive for laser printed markings. A reflective surface is first formed, preferably by incorporating white pigment into a fluorocarbon base, and a light-transmitting (preferably translucent) ETFE pr ECTFE layer is applied over it. When the reflective layer is based on PTFE or FEP, a primer layer formed from a mixed dispersion of PTFE or FEP and ETFE or ECTPE (as appropriate) is preferably applied before the underlying PTFE or FEP composition is sintered.

REFERENCES:
patent: 4652528 (1987-03-01), Domkowski
patent: 4808966 (1989-02-01), Ferlier
"Method For Reducing Laser Intensity Attenuation Due to Debris From Etch Products", IBM Technical Disclosure Bulletin, vol. 28, No. 5, Oct. 1985, p. 2143.

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