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Plateless printing system    
United States Patent6298780   
Link to this pagehttp://www.wikipatents.com/6298780.html
Inventor(s)Ben-Horin; Narda (Tel-Aviv, IL), Figov; Murray (Ra'anana, IL)
AbstractA printing system which uses a single layer printing member coated on to a cylinder is provided. For waterless offset application, the single layer printing member consists of an oleophobic imaging layer containing an oleophobic resin, coated on an oleophillic cylinder. For wet application, the single layer may either be hydrophilic, coated on a oleophillic cylinder; or vice versa. The single layer printing member is composed of a resin having either oleophobic, hydrophilic or oleophillic properties, to which an infra red absorbing component or components may be added.
   














 Title Information Submit all comments and votes
 
Patent Text Patent PDF Print Page Summary File History
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Inventor     Ben-Horin; Narda (Tel-Aviv, IL) , Figov; Murray (Ra'anana, IL)
Owner/Assignee     Scitex Corporation Ltd. (Herzelia, IL)
Patent assignment
All assignments
Publication Date     October 9, 2001
Application Number     09/396,036
PAIR File History     Application Data   Transaction History
Image File Wrapper   Patent Term   Fees
Litigation
Filing Date     September 15, 1999
US Classification     101/478 101/457 101/463.1 101/467 430/303
Int'l Classification    
Examiner     Funk; Stephen R.
Assistant Examiner    
Attorney/Law Firm     Eitan, Pearl, Latzer & Cohen-Zedek
Address
Parent Case     RELATED APPLICATIONS This application is a Continuation-in Part Application of PCT Application PCT/IL99/00026 filed Jan. 14, 1999, which is based on Israeli Application 122953 filed Jan. 15, 1998, and which are incorporated herein by reference.
Priority Data     Jan 15, 1998 [IL] 122953
USPTO Field of Search     101/457 101/462 101/463.1 101/465 101/466 101/467 101/478 430/302 430/303
Patent Tags     plateless printing
   
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 References Submit all comments and votes
 
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 U.S. References
 
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6063528
Morgan

May,2000

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Notsu et al.

Feb,2000

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Figov

Dec,1999

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5996499
Gelbart et al.

Dec,1999

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5976764
Bennett et al.

Nov,1999

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Silverbrook

Nov,1999

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Verschueren et al.

Oct,1999

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Grabley et al.

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Tsuchiya et al.

Jul,1998

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Miyaguchi et al.

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Gelbart

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Lewis

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Williams et al.

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Williams et al.

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Lewis et al.

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Market Share
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50% - 74.99%
25% - 49.99%
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< 1%
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Reasonable Royalty
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50% - 74.99%
25% - 49.99%
10 - 24.99%
5 - 9.99%
2 - 4.99%
1 - 1.99%
< 1%
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 Technical Review Submit all comments and votes
 Claims Submit all comments and votes
 


What is claimed is:

1. A computer to plate system comprising:

a. means for re-constituting a single layer plate on a substrate, said re-constituting means comprising:

i. erasing means for removal of a used imaged coating from a previous job to generate an erased substrate;

ii. mixture means for preparing a mixture;

iii. coating means for coating said prepared mixture on said erased substrate; and

iv. solidifying means for solidifying and curing said coated layer;

whereas said coated layer is an infrared absorbing layer, and one of said coated layer and said erased substrate is oleophilic and the other is oleophobic;

b. an imaging system for placing an image on said coated layer; and

c. means for cleaning said imaged plate;

wherein said coated layer is formed from a mixture including a water soluble crosslinkable amine resin and its catalyst, a silicone emulsion and its crosslinking agent and catalyst, a surface active agent, and an infra-red absorbing agent.

2. The system according to claim 1, wherein said mixture includes 40% to 80% (percentage solids) of silicone emulsion.

3. The system according to claim 2, wherein said mixture includes 0.01% to 3% (percentage solids) of silicone catalyst.

4. The system according to claim 3, wherein said mixture includes 5% to 15% (percentage solids) of silicone crosslinking agent.

5. A computer to plate system comprising:

a. means for re-constituting a single layer plate on an existing substrate, said re-constituting means comprising:

i. erasing means for removal of a used imaged coating from a previous job to generate an erased substrate;

ii. mixture means for preparing a mixture;

iii. coating means for coating said prepared mixture on said erased substrate; and

iv. solidifying means for solidifying and curing said coated layer;

whereas said coated layer is an infrared absorbing layer, and one of said coated layer and said erased substrate is oleophilic and the other is oleophobic;

b. an imaging system for placing an image on said coated layer; and

c. means for cleaning said imaged plate;

wherein said coated layer is formed from said mixture, said mixture including 40% to 80% (percentage solids) of silicone emulsion, 0.01% to 3% (percentage solids) of silicone catalyst, 5-15% (percentage solids) of silicone crosslinking agent and 4%-25% of water soluble crosslinkable amine resin.

6. The system according to claim 5, wherein said mixture further includes 0.5% to 5% of catalyst for the amine resin.

7. The system according to claim 6, wherein said mixture further includes 0.5%-10% of added surfactant.

8. The system according to claim 7, wherein said mixture further includes 3%-40% of infrared absorber.

9. A printing system comprising:

a. a printing member comprising a single imaging layer coated on an image bearing cylinder or on a replaceable substrate attached to said cylinder;

b. an imaging system for placing an image on said image bearing cylinder or substrate; and

c. an inking assembly for applying ink to said printing member,

whereby, on selective ablation, polymerization or decomposition of said imaging layer, selective areas of said imaging layer are removed thereby exposing said image bearing cylinder or said substrate;

wherein one of said image bearing cylinder or said substrate, and said coated imaging layer is oleophilic and the other is oleophobic;

wherein said imaging layer comprises a mixture including a water soluble crosslinkable amine resin, a catalyst for the amine resin, a silicone emulsion and its crosslinking agent and catalyst, a surface active agent, and an infra-red absorbing agent.

10. The system according to claim 9, wherein said mixture includes 0.5% to 5% of said catalyst for the amine resin.

11. The system according to claim 10, wherein said mixture further includes 0.5%-10% of said surface active agent.

12. The system according to claim 11, wherein said mixture further includes 3%-40% of said infra-red absorbing agent.

13. A printing system comprising:

a. a printing member comprising a single imaging layer coated on an image bearing cylinder or on a replaceable substrate attached to said cylinder;

b. an imaging system for placing an image on said image bearing cylinder or s