The present disclosure provides information about a coating history of a vehicle. An information processing apparatus executes acquiring, for a vehicle with a later peelable second coating film formed being layered on at least a part of a first coating film, history data that is data about work on the second coating film, and acquiring a first image that is an external appearance image of the vehicle before the second coating film being formed, based on the history data.

A multi-layer paint film satisfies paint film performance, such as water resistance, impact resistance and the like, required of an automobile paint film and which has excellent paint film appearance is obtained. The method comprises coating an aqueous first base paint (A) over an electrodeposited cured paint film to form a first base paint film, and then coating an aqueous second base paint (B) over the first base paint film without carrying out preliminary drying by heating after forming the first base paint film to form a second base paint film, preliminary drying by heating is carried out after forming the second base paint film, coating a single-liquid type clear paint (C) over the second base paint film to form a clear coat paint film. These three paint film layers are heated and cured at the same time.

A method for treating a metal substrate surface before coating or printing thereof, the method including: preheating to 40 C. or above a specific metal substrate having a thermal conductivity of 10 W/mK or higher, and thereafter continuously performing a flame treatment on the substrate surface, prior to coating or printing of the surface of the substrate with a coating material or an ink.

A method for treating a metal substrate surface before coating or printing thereof, the method including: preheating to 40 C. or above a specific metal substrate having a thermal conductivity of 10 W/mK or higher, and thereafter continuously performing a flame treatment on the substrate surface, prior to coating or printing of the surface of the substrate with a coating material or an ink.

A coated article comprising a metal surface, a first layer of an uncured autodeposition coating and a second uncured paint layer deposited sequentially on the surface without intermediate curing of the autodeposition coating, a process of co-curing said autodeposition coating and paint layer or layers, and a cured coated article having chemical bonds between the cured autodeposition coating layer and at least the cured paint layer immediately adjacent to the cured autodeposition coating layer.

The present invention relates to a method for preparing a two-dimensional or three-dimensional nanocube self-assembled structure and a two-dimensional or three-dimensional nanocube self-assembled structure prepared by the preparation method and, more specifically, to a two-dimensional or three-dimensional nanocube self-assembled structure which has uniform and regular nanogaps and high crystallinity and thus has high optical utilization.