Image forming method
An image and composition technology, applied in the field of image formation, can solve the problem of not being able to obtain high water resistance effects of silane compounds
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Examples
Embodiment approach 1
[0047] The image forming method of Embodiment 1 is a method using the object 41 whose surface is acidic.
[0048] As described above, using the above-mentioned recording device A, an ink composition containing toner, humectant, penetrating agent, water, and a hydrolyzable silane compound is ejected onto the object 41 to be printed, thereby forming an image on the object 41 to be printed. .
[0049] The water (solvent) in the ink droplets attached to the printed object penetrates into the printed object 41 while evaporating, and the hydrolyzable silane compound starts a polycondensation reaction. At this time, since the surface of the object to be printed 41 is acidic, the acid functions as a catalyst. Thereby, the polycondensation reaction of a hydrolyzable silane compound advances rapidly, and a reaction ends. By completing the polycondensation reaction of the hydrolyzable silane compound, the toner on the printed matter 41 is surely surrounded by the silane compound. As a...
Embodiment approach 2
[0055] The image forming method according to Embodiment 2 is a method of forming an image on the object 41 with an ink composition, and then exposing the image to acid.
[0056] As described above, using the above-mentioned recording device A, an ink composition containing toner, humectant, penetrating agent, water, and a hydrolyzable silane compound is ejected onto the object 41 to be printed, thereby forming an image on the object 41 to be printed. . When the water (solvent) in the ink droplets adhering to the printed object 41 evaporates and penetrates into the printed object 41, the hydrolyzable silane compound starts polycondensation reaction, and the toner is surrounded by the hydrolyzable silane compound.
[0057] However, actually, the polycondensation reaction of the hydrolyzable silane compound is not completed on the object to be printed 41 . Since the reaction is not completed, the ratio of the hydrolyzable silane compound surrounding the toner is small. Therefor...
Embodiment approach 3
[0064] The image forming method according to the third embodiment is a method of forming an image with an ink composition on the object to be printed 41 which has been brought into contact with acid in advance.
[0065] Here, as a method of contacting the object to be printed 41 with an acid in advance, gas phase contact, liquid phase contact, or solid phase contact can be employed. The specific methods of gas phase contact, liquid phase contact and solid phase contact can adopt the above methods. Among them, liquid-phase contact is preferable because acid can easily penetrate into the object 41 to be printed.
[0066] Using the above-mentioned recording apparatus A, an ink composition containing a toner, a humectant, a penetrating agent, water, and a hydrolyzable silane compound is ejected onto the object 41 to be printed that has been exposed to an acid by gas phase contact, liquid phase contact, or solid phase contact. , thereby forming an image on the object 41 to be prin...
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Abstract
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