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In ancient times, there was indeed no glue, and generally they used paste to brush when they posted notices and the like. Later, fish glue was gradually discovered, and glue boiled from various animal skins was used instead of glue.
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In ancient times, there was no glue, glue is the product of modern chemical industry. Generally speaking, the ancients would use rice paste instead of glue, and the principle is similar to today's paste.
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Fish maw glue and pig skin glue are made of pig skin and fish bladder. It is heated in water, melted and coated on the surface of the wood, and then bonded successfully after cooling and drying.
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When it comes to ancient people, there are actually many stories in many cases, and everyone knows that in fact, ancient people are not only smart many times, but also pay attention to a practical one more often, we all know that glue is a lot of things used by modern people, so some people ask, is this glue in ancient times? How did ancient people make glue? Let's analyze and reveal the secret of this problem together!
Ancient Chinese furniture is a mortise and tenon structure, and the furniture created can be made without a single nail, tightly fitted, and very firm. As a result, some people who don't understand it will boast that the furniture made by real ancient Chinese carpenters doesn't even use glue. In fact, this is completely wrong.
Traditional furniture, except for some parts that require detachable functions, are glued by ancient carpenters to be glued.
The glue used by ancient carpenters mainly includes fish bladder glue and pig skin glue.
Fish maw gum, as the name suggests, is made from fish swim bladders. The swim bladder goes through the procedures of steaming, boiling, pounding, filtering, etc., and finally the fish maw glue is obtained. When used, it is heated with water, melted and coated on the surface of the wood, and after cooling and drying, it can be successfully bonded.
Pork skin glue is made of pig skin, which is boiled to become something like glue, and it is also heated through water when used, which is the same as the use of fish maw glue. Here's what porcine gum looks like::
What are the benefits of these two types of glue? First of all, the main thing is that it is natural and pollution-free. Secondly, these two kinds of glue are most afraid of heat, so when the furniture has been used for a long time and has been damaged, you only need to use a pot of boiling water to pour it on the glue place, and you can disassemble it.
And cold water, no matter how much you pour it, it's fine. Unlike the chemical glue used now, it is basically impossible to disassemble when it is glued. This one is also a disadvantage!
Of course, the disadvantages of these two glues are also very obvious, so they have gradually been replaced by modern glues. First of all, these two kinds of glue are not easy to make. Especially the fish maw glue, it needs to be vigorously mashed, as the old saying goes, "a good man can't pound two or two swim bladders", that is, it is very difficult to make fish maw glue.
What's more, today, fish maws, which were not rare in the past, are mainly used as beauty and health products, and they are constantly improving, so the use of fish maw glue is less.
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