JP2016007729A5 - - Google Patents

Claims (13)

In the method of forming a marking that develops color when the temperature exceeds the specified temperature on the substrate,
A first step of forming a first member containing a developer or color former on the substrate;
A second step of forming a barrier layer covering the first member;
A third step of forming, in the barrier layer, a second member that includes a developer or a color former different from the first member,
At least one of the first step or the third step is:
Forming liquid droplets containing the developer or color former;
Depositing the liquid droplets on the substrate or barrier layer;
I have a,
The second step and the third step, marking wherein the Rukoto run under the following environmental temperature Celsius 10 ° C.. As the color former, a substance that changes its structure by touching an acidic substance or a basic substance and visually develops color is used.
A solution containing the color former is used as the liquid.
The marking method according to claim 1. The second step and the third step are performed under an environmental temperature of 0 degrees Celsius or less.
The marking method according to claim 1. An ink container for storing ink; an ink jet head for ejecting ink droplets; and an ink supply path for supplying the ink from the ink container to the ink jet head. An ink jet printer that forms an arbitrary pattern on
A cooling device capable of cooling to maintain at least a portion of the ink at a temperature of less than 15 degrees Celsius;
The ink jet printer, wherein the cooling device cools the ink container and the ink supply path. It has a cooling device that can be cooled so that at least a part of the ink is maintained at a temperature of 0 ° C. or less.
The ink jet printer according to claim 4. The cooling device is
A refrigerant path for circulating the refrigerant is provided, and the refrigerant is cooled by being compressed, liquefied, decompressed, and vaporized.
The ink jet printer according to claim 4. A supply pump provided in the ink supply path for applying pressure to the ink;
A pump cooling device for cooling the supply pump; and at least one of a pump heat insulating member for insulating the supply pump.
The ink jet printer according to claim 4. Having a heat insulating wall at least at a part between the main body containing the ink container and the inkjet head;
The ink jet printer according to claim 4. In the marking formed on the substrate,
The marking consists of a developer layer, a barrier layer, and a color former layer formed on the substrate,
The barrier layer has a configuration in which the developer layer and the color developer layer are kept in non-contact at a first temperature, and the developer layer and the color developer layer are brought into contact at a second temperature. If it exceeds, it will melt,
At least one of the developer layer and the color developer layer is formed in a plurality of dot shapes, and a predetermined pattern is formed by the plurality of dots,
The marking characterized in that when the developer layer and the color former layer are in contact with each other at the second temperature, the color former layer is colored to visualize the predetermined pattern. The marking according to claim 9,
The developer layer is formed on the substrate,
The barrier layer is formed on the developer layer,
The color former layer is formed on the barrier layer,
The marking, wherein the developer layer, the barrier layer, and the color developer layer are covered with a cover layer. The marking according to claim 9,
The marking, wherein the developer layer is formed of a film having an adhesive layer on the back surface and a layer made of the developer on the surface. The marking according to claim 9, wherein the barrier layer contains at least one hydrocarbon having 10 to 18 carbon atoms. The marking according to claim 9, wherein a basic polymer is mixed in the color former layer when the color former layer is a substance that develops color when contacted with an acidic substance.