Method for producing decorated bottle caps with improved...

Details Method for producing decorated bottle caps with improved... Method for producing decorated bottle caps with improved...

2006-11-06

2010-11-16

Phan, Thiem (Department: 3729)

Metal working

Method of mechanical manufacture

Assembling or joining

C029S469500, C029S527100, C072S349000

Reexamination Certificate

active

07832075

ABSTRACT:
A method comprising: a) providing sheet or format metal; b) swaging said metal by means of a swaging lubricant, so as to form a swaged blank; c) degreasing said swaged blank, so as to typically remove the remains of the swaging lubricant, to form a degreased blank capable of being lacquer coated; d) lacquer coating said degreased blank, said resulting lacquer coated blank being then optionally decorated; e) an optional finishing step. The method is characterized in that during the degreasing at step c), said swaged blank is subjected to an energetic radiation emission treatment of selected intensity and duration to eliminate or decompose said remains of lubricant, said treatment being wholly carried out at a metal temperature less than 150 degree C., and for a duration typically less than 1 second, so as to obtain, following said treatment, a surface tension not less than 34 dynes/cm.

REFERENCES:
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patent: 0475856 (1992-03-01), None
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patent: 1254059 (2002-11-01), None
patent: 2836158 (2003-08-01), None
patent: 203976 (1923-09-01), None
patent: 02/43781 (2002-06-01), None

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