In the TS 4123 EN ISO 2417 standard, which is a European standard and also published by the International Standards Organization (ISO), a test method is described to determine the water absorption power of leather under static conditions. This test method is applied to all leathers, especially heavy leathers.
To understand how to prevent leather from wetting, it's necessary to understand the leather wetting process. Generally, this process occurs in four steps: water spreads and wets the surface of the leather, water penetrates the leather, water wets the fiber network, i.e., the inner surface of the leather, and the leather becomes wet due to the attractive interaction between water and leather. These interactions involve not only the leather's backbone but also tanning agents, dye molecules, salts, and other materials present in the leather network.
Waterproof leathers are of high commercial interest as special products such as waterproofing, neutralizing and dispersing agents are needed for tanning. The choice of waterproofing system depends on the degree of water resistance required and the purpose of the leather. Extreme hydrophobicity is required for some specific uses. On the other hand, attention should be paid to the breathability and drying speed of the leather. Therefore, these leathers require high technology.
To evaluate the waterproofing behavior of leathers on various combinations of retanning and lubricating agents and the static absorption of water in advanced laboratories. As a result, the quality of the leather has an effect on the waterproofing and breathability of the leather.
The ratio of the amount of water absorbed to the dry weight of the leather material is defined as the static water absorption properties. This ratio expresses the maximum amount of water that the leather can absorb. Water absorption strength shows the type of leather, its condition and how it should be cleaned. Water beads up on finished and pigmented leathers, such as those used in automobile interiors. It also pills on synthetics such as vinyl.
Our organization provides test services for the determination of static absorption of water between physical and mechanical tests of leather, within the scope of TS 4123 EN ISO 2417 standard, with its trained and expert staff and advanced technological equipment, among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors. also gives.
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