Commonly used wooden puzzle toys in the prior art are toys processed from slabs made of basswood and poplar plywood with poplar wood as the base material. Since the hardness of basswood is not as good as that of beech, the surface of basswood will still have burrs after polishing and grinding. Therefore, it is necessary to roll varnish on the surface of the basswood layer of basswood plywood at least three times. processing technology to make the surface smooth, and then heat transfer printing on the paint surface. However, although the thermal transfer performance of the surface of wood products after rolling varnish is high, it also generates a lot of economic costs. How can thermal transfer be achieved on the surface of wood products without rolling paint and achieve good performance? It is the research direction of various manufacturers.
