Abstract: Flexographic printing plates are produced by exposing the photopolymer plates to a light source and washing out (developing) the masked out, non-exposed areas with a solvent. The invention provides terpene ether solvents suitable for use in the development of photopolymer printing plates. The solvents, which include terpene ethers alone or mixed with co-solvents and/or non-solvents, are effective in developing a large number of different photopolymer printing plates and can produce images superior to those obtained with commercially available solvents currently used in such applications.
Type:
Grant
Filed:
November 6, 2003
Date of Patent:
May 24, 2005
Assignee:
NuPro Technologies, Inc.
Inventors:
Constance Marie Hendrickson, David Calvin Bradford
Abstract: Flexographic printing plates are produced by exposing the photopolymer plates to a light source and washing out (developing) the masked out, non-exposed areas with a solvent. The invention provides methyl ester solvents suitable for use in the development of photopolymer printing plates. The solvents, which include methyl esters alone or mixed with co-solvents and/or non-solvents, are effective in developing a large number of different photopolymer printing plates and can produce images superior to those obtained with commercially available solvents currently used in such applications.
Type:
Grant
Filed:
November 27, 2001
Date of Patent:
June 24, 2003
Assignee:
NuPro Technologies, Inc.
Inventors:
Constance Marie Hendrickson, David Calvin Bradford
Abstract: Flexographic printing plates crosslinkable by photopolymerization are produced by exposing the plates to a light source and washing out (developing) with a solvent the non-crosslinked areas that are masked out during the exposure process. The invention provides terpene ester-based solvents suitable for use in the development of photopolymer printing plates. The solvents, which include terpene esters alone or terpene esters mixed with organic solvents and/or non-solvents, are effective in developing a a large number of different photopolymer printing plates and can produce images superior to those obtained with commercially available solvents currently used in such applications.