How did the stone of spades turn red? How did the stone of spades turn red?

1. Rubbing red: With the continuous playing, the sweat and oil on your hands are rubbed into Lippi of walnuts, and the water of walnuts evaporates and gradually replaces it with body fluids, finally reaching a basically saturated state. After playing and rubbing for a long time, the texture of walnut itself will change, the water will evaporate, the volume will shrink, the weight will be slightly lighter, and the wood will gradually harden. At this time, the appearance is quietly changing and gradually turning red, which is the performance of starting sizing. In the process of playing, the amount and temperature of palm exudate will vary in different degrees in the evolution of color. The more exudate, the higher the temperature, the faster the color is finished and the stronger the color is. The method of "rubbing" and "rubbing" can sometimes reflect the bright red phenomenon at the same time. The red rubbing stage is a process from sizing to sizing, and it takes about three to six months to reach the level of sizing at this stage.

2. Slippery: This stage is a continuation of the red rubbing stage and a process of sublimation of walnut patina. As a result of playing for a long time, the walnut patina will become thicker and thicker, the walnut skin and body fluids will fully react, and the wood will become harder and harder, and the color will become heavier and heavier, showing: red → crimson → purple (black). During this period, the baby in your hand is basically qualitative, and no matter how you play, you won't bite your hand again. Smoother edges and corners form the mutual maintenance of walnut and palm. At the same time, you don't have to worry about cracking, because you have put on a thick mud coat. At this time, the appearance should be: the appearance is like a fake walnut, which is somewhat similar to the feeling of plastic material. When rubbed by hand, the edges and corners are smooth and oily, and the fingers and walnut skin will produce sound after rubbing smoothly. In addition, some walnuts began to shake at this time. This stage will take about one year.