Water-based ink for scraping drawing paper, preparation method of water-based ink, magnetic scraping drawing paper and collection method of magnetic scraping drawing paper

The invention relates to water-based ink for scraping drawing paper, a preparation method, magnetic scraping drawing paper and a collection method, the ink comprises water-based ink and magnetic iron powder, and the magnetic iron powder is used for endowing the water-based ink with magnetism, so that the water-based ink can be adsorbed and collected by a permanent magnet after being scraped; from the perspective that waste ink scraped off by magnetic scraping drawing paper is not easy to collect for the first time, the magnetic iron oxide micro powder is creatively added into the water-based ink for preparing the scraping drawing paper, so that the waste ink scraped off in the scraping drawing creation process can be adsorbed and collected through a permanent magnet, and the scraping drawing paper cannot be damaged in the mode; in addition, collection can be cleaner and more thorough, even the permanent magnet does not need to be in contact and friction with the scraping and drawing paper, and effective colle