Common resin buttons knowledge misunderstanding: Urea is also a resin?

General resin: resin button commonly known as unsaturated polyester resin button is based on unsaturated polyester resin as the main raw material, add the right amount of additives, in a specific device and mold gel, curing into pearlescent or non-pearl plate, rod, after mechanical processing After made.

Unsaturated polyester resin button has the characteristics of acid-alkali resistance and high temperature laundering. It is widely used in clothing accessories. Unsaturated polyester resin buttons are full of changes in color, strong simulation, excellent physical and chemical properties, has become a leading product for clothing buttons. However, as a clothing accessory, buttons have not received enough attention for their performance and safety performance. At present, there are no country or industry standards for button products in the country, and there is a gap in the market supervision of buttons. Unsaturated polyester resin buttons can be used for anti-corrosion of laundry liquids at 40°C, 50°C, 60°C or 95°C. These temperatures cover everything from gentle to strong washing in the laundry process. The performance of the unsaturated polyester resin button mainly refers to the change of appearance of the button during the production, wearing, washing, ironing, drying and storage of the button, including discoloration, discoloration after contact with the fabric and the button, and the like. Happening. The indicators for the performance of the unsaturated polyester resin buttons are corrosion resistance of wash liquid, corrosion resistance to dry cleaning solvents, steam ironing resistance, heat resistance performance, pressure resistance performance of heat resistance press heads, resistance to air corrosion, and water resistance Resistance to seawater or chlorine water.

Urea button features:

1, ordinary resin buttons can only withstand boiling water about 100 °C, urine resin buttons can reach about 120 °C. As for short-term electric ironing temperatures can be higher.

2, higher hardness, good wear resistance

Compared with the resin button, the urea-formaldehyde resin has higher hardness. At the same time, it is also a kind of heat-solidified plastic. Therefore, the wear resistance is very good and it is not easy to break. Therefore, this type of button can be used for washing clothes, shirts, etc. Clothing.

3, good resistance to organic solvents

It has superior resistance to organic solvents than unsaturated resin buttons and, therefore, can withstand erosion by the dry cleaning agent without damage.

Melamine button features:

High-temperature button referred to as melamine button, also known as melamine buttons, melamine buttons, plastic buttons, scientific porcelain buttons, melamine resin powder heating press molding.

main feature

1, excellent solvent resistance;

2. The surface of the product is flat, non-toxic, odorless, resistant to fall, and can automatically extinguish the arc;

3, widely used in daily life supplies and other aspects;

Features: Non-toxic, tasteless, temperature resistance -30 degrees Celsius to 160 degrees Celsius, resistance to bumps, corrosion, fire, not only beautiful appearance, and even its performance instead of the previous resin buttons, urea buttons characteristics, use more secure.

Melamine button production process: melamine powder is melamine formaldehyde resin as raw material, cellulose as the base material, adding pigments and other additives made, because it is a three-dimensional mesh structure, it is a thermosetting raw material. (Waste edge can not be re-melting production). Melamine powder scientific name melamine formaldehyde resin, referred to as "MF" ------ raw material properties.

Melamine button raw material is melamine formaldehyde resin, its characteristics are as follows

one. Melamine formaldehyde molding powder is odorless. Odorless, non-toxic;

two. The surface hardness of melamine formaldehyde plastic is high, glossy and resistant to scratching;

three. Self-extinguishing, fireproof, impact resistant, crack resistance;

four. High temperature, high humidity stability, good solvent resistance, good alkali resistance;

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