Bleaching is a common modification method widely used in the industrialization of wood dyeing. Bleaching can regulate the color of the wood, and it also has great effects on the subsequent wood dyeing properties. In this work, three woods, Ayous, Linden, and Poplar, were processed by using the NaOH/H₂O₂/Na₂SiO₃ bleach pretreatment method. Then, the pretreated wood and untreated wood were stained separately by means of water bath dyeing with three dyestuffs: blue anthraquinone and red and yellow double-azo dyestuffs. The study mainly focused on the effect of the bleach pretreatment on the color control and dyeing properties of the wood by analyzing the color difference, staining rate, and final dyeing rate of the dyed wood. The results were as follows: For the color difference, the L* and h* values showed increasing tends, while the a*, b*, and c* values showed decreasing trends. For the staining rate, Ayous reached an equilibrium staining rate at 3~4 h, but for the others, this was not obvious. For the dyeing rate, red and blue Linden veneers and blue Ayous veneers were similar to the unbleached ones, while the final dyeing rate of the other veneers was less than that of the original wood, and the staining rate of the Ayous red and yellow veneer, Linden yellow veneer, and Poplar veneer was less than that of the original wood. The final dyeing rate of the Ayous red and yellow veneers, Linden yellow veneer, and Poplar red, yellow and blue veneers decreased by 4.54%, 2.91%, 5.45%, 10.75%, 2.66%, and 9.55%, respectively. In general, the bleach pretreatment made the staining color of the material surface uniform. The dyeing rate increased due to the increase of the veneers’ permeability. Thus, the veneers quickly reached the equilibrium staining rate, but the equilibrium staining rate of some test pieces decreased. This work provides scientific support for the dyeing process.

Recently, solid wood furniture has become the new direction for the development of Chinese furniture industry. In order to realize solid wood customization, the standardization of solid wood parts is a problem for high priority. In this study, a standardized experimental study on children’s solid wood furniture parts was carried out by using group technology. Twenty pieces of children’s solid wood furniture were selected, including 1084 parts in total with 705 solid wood parts. Then, three key structural features of the parts were analyzed based on the processing similarity principle, including the center line of the long side direction of the parts, the shape of the outside surface of the long side direction and the shape of the outside surface of the short side direction. Moreover, these parts were classified according to the principle of process similarity. Accordingly, a children’s solid wood furniture parts family was established, and the distribution of parts in the family was analyzed. In detail, the parts with the dimensional difference within 2 mm were combined, the dimensional value was mainly based on the value of most parts before the combination and part specifications were optimized on the basis of the original specifications or its 1/2 method. The results show that the category of thickness specification reduced by 20, and the number of parts included in one thickness specification increased by 2.2 times on average. Moreover, the category of width specification reduced by 12, and the number of parts included in one width specification increased by 1.47 times on average. This not only greatly improves the degree of standardization of solid wood parts but also provides theoretical and practical basis for the digital design of mass customized children’s solid wood furniture.