Introduction to the back-ink seal

1. The definition of the back-ink seal.

There is currently no national standard or industry standard for ink-returning seals. The definitions of ink-returning seals in the same industry in my country vary from east to west, north and south, but as the name suggests, seals that can store ink and use it back to the seal surface are all It can be called a return ink seal.

2. Types of back-ink seals.

The existing ink return seals are divided into tipping bucket return ink seals (that is, the large dark green seals that were popular in your area with complex structures, difficult maintenance, and inconvenience to carry), and photosensitive penetrating ink return seals. That is to say, our company is currently using it. It has a simple structure, is durable, is easy to carry, and is the most popular in the country. Almost 80% of the seals in the country use this kind of seal. Almost 90% of the seals of newly opened companies purchased by the government are also purchased. This kind.

3. The difference between the two types of return ink seals.

1. From the perspective of portability, structure and maintenance difficulty:

(1) The tipping bucket type ink return seal is actually a condensed version of the traditional seal that is dipped in ink mud and then stamped. , he hides a small ink pad box in the seal case, and the stamp surface with the words passes through a flipping structure, and the stamp surface is driven to flip through a manual stamping action. After being dipped in the ink of the built-in small ink pad box, it is flipped back to its original position before stamping. This is an action that sounds complicated, and the structure required to coordinate this action is naturally complex, and this complex structure is basically made of plastic, which leads to a significantly higher failure rate and higher difficulty and cost of repair. It cannot achieve a simple and efficient application effect that is consistent with the spirit of streamlining administration and delegating power;

And because it contains such a complex structure, its volume is significantly larger than other types of seals, making it extremely inconvenient to carry - we Dozens of branches and subsidiaries under my headquarters group have never used this.

(2) Photosensitive penetrating ink return printing uses the simplest structure to achieve the best effect - it does not use the method of dipping the printing mud every time, but uses the method of injecting it below the inside of the chapter surface. A sufficient amount of ink then naturally penetrates into the seal surface (a full refill of oil can generally last up to one or two years), so there is no need for a flipping mechanism that moves back and forth. It looks and is simpler and more efficient to use, so it is smaller and The handle is also detachable, making it more convenient to carry around.

In fact, the tipping bucket-type ink return seal originated from abroad. It is based on the fact that foreign countries attach great importance to signatures and rarely stamp, and generally do not need to take out the bulky seals. This is in line with the emphasis on seals in our country. There are obvious differences between authoritative national conditions and traditional concepts, as well as the environment in which takeaways are often used.

2. From the perspective of the stamping effect

(1) The principle and effect of the tipping bucket type ink return stamp is actually the same as that of the traditional seal manually dipped in an external printing box and then stamped. However, since each time the stamp is dipped in ink once and stamped immediately, the ink does not fully penetrate into the stamp surface. Moreover, due to the pursuit of quick absorption of ink ink and stamping immediately, the pores on the stamp surface are larger than those of photosensitive penetrating stamps, so the stamp surface is not fully penetrated. Of course, the effect is not as good as that of the photosensitive penetrating seal.

(2) Photosensitive penetrating ink return seal. The sealing oil comes from the penetration of the printing oil inside the seal from the inside to the outside. This penetration is still going on in the standing state, so the pores on the sealing surface are made It is particularly delicate, and the stamped text is of course also more delicate. This is very similar to the principle of printers printing with ink cartridges and nozzles, so the stamping clarity is basically the same as the printing effect.

3. From the perspective of the deformation rate and durability of the seal surface

Both the photosensitive penetrating type and the tipping bucket type ink return seal use soft material seal surfaces, and both have a certain deformation rate, but both can It is controlled within the allowable deformation range of the Ministry of Public Security standards; the material of the software seal is similar, and its durability is basically similar.