Correct Identification Method Of Leather Care Agent

　　 Correct identification method of leather care agent

　　1、 Leather care agent Must be grease

The leather care agent containing grease, when rubbed by hand, has a sense of oil, but is not greasy. When the temperature reaches 450~750 degrees, it can ignite with the help of combustibles. Therefore, it can be tested by combustion method, that is, a small amount of care agent is evenly sprayed on toilet paper, placed on the mosquito repellent incense rack, and the toilet paper is ignited first. When the care agent is burned to, the care agent can ignite.

2. Use PH PH value detection

If the pH value of the leather care agent is greater than 7, it is alkaline. It penetrates into the skin, destroys the original oil film between the fibers on the inner surface of the skin, and washes away the oil in the skin, making the fibers on the inner surface of the leather adhere to each other, increase the friction, and corrode the leather fibers, making the leather hard and brittle, Even cracking - this is the reason why alkaline substances damage the dermis. That is, alkaline cleaners are used to clean the dermis. The alkaline substances infiltrated into the dermis will damage the internal structure of the dermis, especially the oil film on the surface of the fibers inside the dermis, making the dermis hard, brittle, and even cracked. Therefore, except for oily cleansers, the dermis cannot be treated with water cleansers.

The qualified pH value of leather care agent is between 5 and 7.

3. Not easy volatilization , no smell

The strong smell indicates that it contains volatile components, most of which contain solvents. If the leather is not very dry, it will dry soon after the leather surface is coated with a care agent, which also indicates that there is volatile solvent, which will enter the human body through the respiratory system during care; When using leather goods, they will enter the human body through human pores, which is not conducive to human health. In addition, when the leather care agent containing volatile components is injected into the leather, its volatilization will also take away the original oil injected during leather making, making the leather harder and more brittle.

4. It has appropriate permeability and binding force

High quality leather care agent can evenly penetrate into the fiber surface of all parts of the leather, and combine well with the intradermal fiber. However, the combination of wax and the internal fiber of the leather is poor, and the wax is easy to volatilize due to its low ignition point, so the wax will be lost quickly when it enters the leather, and the original oil in the leather will be taken away at the same time due to its loss, It makes the leather harder and more brittle, and the wax can also block the hair eyes, so pure wax is not suitable for caring the dermis.