Are Leather Boots Waterproof? Analysis of the Lining Function of Composite Diatomite Non-woven

一. Waterproof Performance of Leather Boots

1. Waterproof properties of natural leather

Natural leather itself has a certain degree of waterproofing ability, but this waterproofing is relatively weak. Its main component is collagen fibers, which have a tight fiber structure and are difficult for moisture to penetrate into the interior of leather. However, leather may experience cracking and other issues during processing and use, leading to a decrease in waterproof performance.

2. Special treatment to enhance waterproofing

In order to enhance the waterproof performance of leather boots, special treatment is usually applied to the leather. For example, using waterproofing agents or coatings to alter the surface properties of leather, forming a protective film that prevents moisture from penetrating. Common waterproof materials include waterproof wax, fluorocarbon coating, etc. In addition, special sealing treatments such as processing glue, sealant, or hot melt glue will be used at the seams and seams of the shoe upper to prevent moisture from penetrating through the gaps.

3. The impact of waterproof design

The waterproof performance of leather boots is also influenced by design. For example, using a sloping edge design can allow water to slide away from the shoe upper without penetrating into the interior. In addition, the material and design of the sole also have a significant impact on waterproof performance. Choosing a shoe sole with a waterproof design, such as a rubber sole or waterproof synthetic material, can not only prevent moisture from seeping in from the bottom but also provide a better grip.

二. The Function of Composite Diatomite Non-woven Fabric Lining

1. Moisture absorption and locking

Composite diatomite non-woven fabric has extremely strong moisture absorption, with a moisture absorption rate of over 70% and a moisture content of over 400% of its mass, and is not easily saturated and ineffective. This characteristic enables it to quickly absorb moisture inside the shoe and lock it in the material, preventing moisture from seeping out and keeping the shoe dry.

2. Moisture regulation and removal

Composite diatomite non-woven fabric has the characteristics of bidirectional humidity regulation and drainage, which can automatically absorb or release moisture according to changes in environmental humidity, achieving the goal of regulating and balancing humidity.  Leather boots,  can absorb excess moisture in humid environments and release a certain amount of moisture in dry environments, maintaining a relatively stable shoe environment and improving wearing comfort.

3. Antibacterial and deodorizing

The porous structure and high moisture content of composite diatomite non-woven fabric still enable it to have the effect of adsorption and deodorization in humid environments. In addition, it can also use composite slow-release antibacterial technology. Release chlorine dioxide and other substances for sterilization and disinfection, with an antibacterial rate of up to 99% and a deodorization rate of 82.6%. It can not only effectively remove odors inside shoes, but also inhibit the growth of bacteria and fungi, reducing foot health problems caused by humid environments.

4. Recycling

Composite diatomite non-woven fabric can naturally remove moisture when placed in a dry environment and can be reused multiple times. This not only reduces material waste but also lowers the cost of using leather boots and improves economic efficiency.

三. The Comprehensive Effect of Composite Diatomite Non-woven Fabric Lining on The Waterproof Performance of Leather Boots

1. Improve overall waterproofing

The composite diatomite non-woven fabric lining can effectively control the humidity inside the shoes and reduce the accumulation of moisture inside the shoes through the characteristics of moisture absorption, moisture-locking, and moisture regulation and elimination. Even if external moisture seeps into the shoe, this lining can quickly absorb and lock in moisture, preventing further diffusion and thus improving the overall waterproof performance of the leather boots to a certain extent.

2. Enhance wearing comfort

Due to the ability of the composite diatomite non-woven fabric lining to regulate the humidity inside the shoes and maintain a relatively stable environment, it can effectively avoid foot discomfort caused by moisture, such as foot sweat and foot odor. At the same time, the antibacterial and deodorizing functions also help maintain the hygiene inside the shoes, further improving the comfort of wearing leather boots.

3. Extend the service life of leather boots

The moisture absorption and locking function of the composite diatomite non-woven fabric lining can reduce the erosion of moisture on the internal structure of leather boots, preventing the leather from becoming moldy, deformed, or damaged due to moisture. In addition, the antibacterial and deodorizing functions also help reduce the corrosion of leather by bacteria and fungi, extending the service life of leather boots.

四. Conclusion

The waterproof performance of leather boots depends on various factors, including the natural waterproofness of leather, special treatment, design, etc. As a new type of material, composite diatomite non-woven fabric lining can effectively improve the waterproof performance of leather boots, enhance the comfort of wearing, and extend the service life of leather boots through functions such as moisture absorption and locking, moisture regulation and elimination, antibacterial and deodorizing. Therefore, when choosing leather boots, considering products with composite diatomite non-woven fabric lining will help better meet the needs of waterproofing and comfort.