Energy activated electrographic printing process
View Patent ↗Reactive toners are printed by electrophotographic and electrographic printers. One or more of the toners may include reactive components. An additional toner, which may be a colorless toner, comprises reactive components. The toners comprising one or more colorants are used to from an image on a substrate. The additional toner is used to cover the entire image, although the additional toner may be printed over, or under, the image, to cover the image as the image is printed on the substrate. The reactive components of the additional toner provide a base that covers at least the entire image to improve adhesion of the image layer with the final substrate, particularly where substrates having rough surfaces, such as textiles, are used as the final substrate.
1. A process of printing an image using an electrographic printer and an energy reactive toner, comprising the steps of:
a. preparing a first toner, wherein said first toner comprises a colorant;
b. preparing a second toner, wherein said second toner comprises at least one compound comprising at least one functional group which is capable of reacting with active hydrogen, wherein said second toner has no colorant;
c. supplying an electrographic printer with said first toner and said second toner;
d. printing a portion of said first toner by means of said electrographic printer onto a first substrate so that said first toner as printed provides an image layer on said first substrate;
e. printing a portion of said second toner by means of said electrographic printer onto a first substrate so that said second toner as printed covers said image layer on said first substrate; and
f. subsequently applying energy to said image layer, and reacting active hydrogen with said at least one compound comprising at least one functional group which is capable of reacting with active hydrogen, and bonding said image layer to a final substrate.
2. A process of printing an image using an electrographic printer and an energy reactive toner as described in claim 1 , wherein said first toner comprises active hydrogen.
3. A process of printing an image using an electrographic printer and an energy reactive toner as described in claim 1 , wherein said image layer and said second toner as printed are transferred from said first substrate to a second substrate, wherein said second substrate is a final substrate, and wherein, after transfer, said second toner is between said second substrate and said image layer.
4. A process of printing an image using an electrographic printer and an energy reactive toner as described in claim 1 , wherein said second toner comprises active hydrogen.
5. A process of printing an image using an electrographic printer and an energy reactive toner as described in claim 2 , wherein said second toner comprises active hydrogen.
6. A process of printing an image using an electrographic printer and an energy reactive toner as described in claim 3 , wherein said second toner comprises active hydrogen.
7. A process of printing an image using an electrographic printer and an energy reactive toner, comprising the steps of:
a. preparing a first toner, wherein said first toner comprises a colorant;
b. preparing a second toner, wherein said second toner comprises at least one compound comprising at least one functional group which is capable of reacting with active hydrogen, wherein said second toner has no colorant;
c. supplying an electrographic printer with said first toner and said second toner;
d. printing a portion of said first toner by means of said electrographic printer onto a first substrate so that first toner as printed provides an image layer on said first substrate;
e. printing a portion of said second toner by means of said electrographic printer onto said first substrate and
f. subsequently applying energy to said image layer, and reacting active hydrogen with said at least one compound comprising at least one functional group which is capable of reacting with active hydrogen, and bonding said image layer to a final substrate.
8. A process of printing an image using an electrographic printer and an energy reactive toner as described in claim 7 , wherein said first toner comprises active hydrogen.
9. A process of printing an image using an electrographic printer and an energy reactive toner as described in claim 7 , wherein said image layer and said second toner as printed are transferred from said first substrate to a second substrate, wherein said second substrate is said final substrate, and wherein, after transfer, said second toner is between said second substrate and said image layer.
10. A process of printing an image using an electrographic printer and an energy reactive toner as described in claim 7 , wherein said second toner comprises active hydrogen.
11. A process of printing an image using an electrographic printer and an energy reactive toner as described in claim 8 , wherein said second toner comprises active hydrogen.
12. A process of printing an image using an electrographic printer and an energy reactive toner as described in claim 9 , wherein said second toner comprises active hydrogen.
13. A process of printing an image using an electrographic printer and an energy reactive toner as described in claim 1 , wherein said first toner comprises at least one compound comprising at least one functional group which is capable of reacting with active hydrogen.
14. A process of printing an image using an electrographic printer and an energy reactive toner as described in claim 7 , wherein said first toner comprises at least one compound comprising at least one functional group which is capable of reacting with active hydrogen.