Nowadays, the types of materials are more and more diversified. According to the seal of Xiangyang, the most commonly used one is the plastic seal. This seal can express the foundation very well. The red seal is a resin synthesized with rubber and plastic. Carved by an engraving machine. The red rubber stamp produced by the company is low in price. It has the characteristics of smooth texture, good elasticity, special specifications and good ink sticking. It is the most stamped material for engraving, and is often used to make office chapters. Because of the material properties of the red seal, it is not suitable for use in dry weather, and the seal material is prone to aging after long-term use. The red rubber stamp is strong and suitable for oily printing pad or ink pad. The texture is fine, the ink absorption is better, and the economical is the most commonly used traditional Chinese seal.

    

The red rubber seal has a uniform internal structure and no water absorption. The aging degree is between the atomic seal and the plastic seal, but it is easy to age relative to the plastic and horn seals to produce a change in the size of the seal. Under the same conditions of stamping pressure, ink printing, etc., the main features of the rubber stamp and plastic stamp change over time are the detailed changes caused by local aging, that is, the exposure or bridging of the impression marks and the "flap" of the engraving. Or fall off.

    

The plastic seal has different feelings. This is also a kind of grasp for us. How do we understand it? It depends on his craft characteristics. It should suit our requirements. The red rubber stamp has certain toughness, strong corrosion resistance and slow aging. During the process of use, as the material ages, the size of the printed surface increases slowly, but it remains stable after increasing to a certain extent. The size of the printed printed area in different periods is not obvious, and it is generally not easy to attract the attention of relevant personnel. We should pay attention to distinguish the irreversible change of the size of the printed matter caused by the aging of the material, the difference between the pressure, the shape of the printed matter caused by the soft and hard of the cushion, and the reversible change of the outer diameter. The biggest disadvantage is that the material is easy after long-term use. Ageing.