Image forming apparatus, and apparatus and method for applying foamed liquid

An apparatus for applying a foamed liquid onto a material, comprising:

• a container for holding a liquid that can be foamed;
• a first foam producing unit configured to produce a foamed liquid having a foam size greater than a required foam size from the liquid supplied from the container;
• a second foam producing unit configured to produce a foamed liquid having the required foam size from the foamed liquid produced by the first foam producing unit;
• and
• a coater unit configured to apply the foamed liquid produced by the second foam producing unit onto the material.

A method of applying a foamed liquid onto a material, comprising:

• a first foam producing step of producing a foamed liquid having a foam size greater than a required foam size from a liquid that can be foamed;
• a second foam producing step of producing a foamed liquid having the required foam size from the foamed liquid produced in the first foam producing step;
• and
• a coating step of applying the foamed liquid produced in the second foam producing step onto the material.