ving aldehyde group such as polyacetal, resin having ketone group such as polyether-ether-ketone, resin having imide group such as polyimide, resin having hydroxyl group such as phenol resin, resin having ethyl group such as polyethylene, resin having alkyl group such as polypropylene, resin having epoxy group such as epoxy resin, resin having amino group such as melamine resin, resin having methy