The secret of inheritance, Chinese woodworking fish gelatin
The æ¦«å¯ structure is one of the unique manufacturing processes of Ming and Qing furniture, which precipitates the composite inheritance of classic furniture styles in streamer rotation. But do you know? In addition to the enamel structure, the fish gelatin that condenses the essence of the ancients is also the essence of traditional Chinese furniture culture for thousands of years. If you say that you have propped up the style of classical furniture, then the fish gelatin is the "secret treasure" that makes classical furniture more secure. Today, Xiaobian will take you to understand the production process of this fish gelatin and fish gelatin used in ancient Chinese woodworking.
About fish gelatin
The glue used by the ancients is amazing. It is not only green and environmentally friendly, but also does not damage the wooden structure of the furniture. The structure can be disassembled and assembled at will, without affecting the overall structure of the furniture. More common are fish gelatin, pigskin glue and so on.
Fish gelatin is a kind of adhesive made from surimi (also known as fish bulb and fish belly).
Fish gill gum has a history of nearly a thousand years in China. According to the "Compendium of Materia Medica", it has the effect of replenishing essence and strengthening blood and strengthening kidney. Glue with fish gizzard is a work that Chinese medicine is still doing now. The Chinese medicine prescription is still fish gelatin, and it is very expensive. Also in the use of traditional Chinese medicine fish gelatin, people began to notice that it has a strong viscosity, especially the glue of the pharmaceutical gel over the head, in which case the use of fish gelatin began to show.
Fish gelatin is widely used, and it can be used for classical furniture in addition to bonding instruments and making bows and arrows. As the technology of the cockroach is becoming more and more sophisticated and people are pursuing the excellence of technology, they gradually evolved their secrets on the basis of alum.
In the middle of the Qing Dynasty, the production of court furniture used more secrets. Whether it was Cantonese style or Soviet style, it was rare to see the alum, but the difficulty of making the darkness was much greater than that of the alum, and the combination of the requirements must be seamless. And the combination of the dark and the awkward is absolutely impossible. Although the dark enamel is more delicate than the alum, but after all, the two parts are not so close together, so the craftsmen in order to avoid the lack of fastness, and deliberately glued with the fish gelatin.
Fish gelatin production process
1, the season
The fish gelatin is different when used in different seasons. "Winter makes it thin, summer makes it thick, and the spring and autumn seasons will make it." In winter, the weather is cool and easy to solidify, use a little bit; summer heat, fish gelatin heat in the gap And it is not easy to exude, then use a thicker one; spring and autumn, use just right, use a brush to lift, pull the line.
In the season of fish gelatin, there is a saying that it is best to be after the frost (because the climate varies from place to place, it is not easy to unify, the general time is that the flies are just not active and have not frozen), because the air is cold and dry during this time. Conducive to the condensation and drying of the glue. The weather is too hot and the glue does not condense, it is dry too slowly, and it is easy to deteriorate and smell bad.
2, selected materials
In the past, our coastal areas generally used rice bran to make rubber. The viscosity is particularly large, but now the rice is rare and expensive. Choose a dry, yellow croaker that has a better texture and a larger size (this indicates that the large yellow croaker grows for a long time, if it is too small, the gel yield is low, the viscosity is not strong). It is best to choose the sea bream for the fish gizzard, because the river fish is not as sticky as the sea fish, and it is also small.
3, soak
First, put the dried fish gizzard in warm water for two days until it is soft.
4, chopped
After soaking, cut into small pieces.
5, cooking
Add an appropriate amount of water to the pot and steam for 40 minutes.
Further reading: The mahogany furniture "smart"
6, silicone
After the soft rot of the fish, the heat is placed on the cutting board and beaten.
7, repeat
In the process of silicone, the temperature of the fish can not be reduced. At this time, it needs to be put into the pot and heated to take it out.
8, take the glue
After repeated times, when the surimi has become a sticky gel, the silicone is almost finished. At this point, the fish gill needs to be heated on the filter screen, and the glue is squeezed out. At this time, the glue filtered out can be used on the spot.
9, spare
The fish gelatin that has solidified after cooling can also be stored for later use. However, when you use it again, you need to use the warm water to soak the hair. After soaking it, you can re-squeeze the glue. You have to simmer for more than three hours.
10, completed
At this point, the fish gelatin is considered complete.
In addition, it should be noted that there are special requirements for the brush. Generally, the brush is too soft and easy to lose hair, which affects the adhesiveness of the fish gel. The craftsmen have tried many times and finally found the tip of the cane that has been soaked in hot water. It is most suitable to apply fish gelatin.
Why do you use fish gelatin for your furniture?
The fish gelatin not only takes into account the strong adhesion between the component and the glue, but also because the fish gelatin also has good physical stretching properties, so that the solidified fish gluing glue can accompany the æ¦«å¯ structure, meet the wood expansion contraction of spring, summer, autumn and winter, and the synchronous expansion and contraction changes. , forming a flexible hinge that does not damage the furniture wood raft structure due to the simple rigid hinge tear.
In the elastic combination state, the æ¦«å¯ structure of the classical furniture of the Ming and Qing Dynasties can be safely disassembled and assembled according to the combination of components, without affecting the overall structure of the mahogany furniture and the stability of the expansion and contraction of the single piece of material.
1. Fish gills can be disassembled and can be repaired as an auxiliary structure. Unlike chemical glue, it is difficult to open after sticking, and even furniture cracks when opening.
2, the fish gelatin can not be poured with cold water, it needs to be opened by hot water, and the latex will open when it meets cold water.
3. Classical furniture made of fish gelatin has a long service life and is firmer and more durable than a simple concrete structure.
Because the fish gizzard is very sticky after being crushed into pulp, the strength required in the later stage of the squid is very large, so a good word has been passed down from ancient times: "There is no such thing as a good boy." However, the use of white latex in modern hardwood furniture is very convenient, although the bonding strength is also very good, even better than the fish gelatin, but it is very difficult to disassemble and repair in the future.
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