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Introduction and difference between waterproof fabrics and water repellent fabrics

2021-04-25

Editor's note: Waterproof fabrics usually refer to fabrics that are inherently waterproof. Today's waterproof fabrics have experienced the development of the earliest compact fabrics and coated waterproof fabrics, mainly for the bonding of film-type fabrics. The key to the waterproofing of waterproof fabrics lies in the functional film used in the fabric. When we travel outdoors, the changing weather requires a waterproof function for the jacket, the trousers and the shoes. However, many people are not particularly clear about the two concepts of waterproof fabrics and water repellent fabrics. Here, Xiaobian will give you a brief introduction.

In the early stage of waterproof fabric development, the most popular film-type fabrics used ptfe (polytetrafluoroethylene) film, which is a microporous film, the waterproof performance is expressed by the water pressure value it can withstand, not 100 % waterproof. In contrast, another membrane-non-porous hydrophilic membrane that has been used by more and more brands in recent years not only has no pores per 100% waterproof, but also makes the waterproof performance of the product more reliable. Some non-porous hydrophilic membranes are more reliable. Because it is environmentally friendly and harmless to the human body, it is favored by more people in the industry. This material does not contain ptfe ingredients, can directly contact the skin, and can be recycled like recycled plastic enamel.

Usually, these fabric manufacturers with thin film technology do not directly sell film to the clothing brand. They combine the film with other material fabrics through the pasting process to form a composite fabric (as shown in the above figure, the middle layer is a film), the brand only needs You can make waterproof clothing products directly by purchasing these composite fabrics. These fabrics used to bond with the film are not waterproof, such as polyester fiber, nylon, etc., so when we wear waterproof clothing and encounter the weather, we will see water seeping into the clothing, just like the clothing of ordinary fabrics. However, the inner layer of the garment is dry and no water seeps in. This is the layer of waterproof film in the middle of the composite fabric.

If the water is dispersed into small water droplets on the garment and then slipped, it is usually because the fabric used has been treated with water repellent treatment. The water repellent treatment is actually a special treatment covering the surface of the fabric, usually when the finished fabric is finalized. Dwr, thus obtaining durable water repellent properties. The purpose of using the dwr coating is that water can form small water droplets when falling onto the surface of the garment or directly fall off the surface of the garment to prevent the fabric from absorbing moisture, and at the same time, the oil stains and the like attached to the surface of the garment are more easily removed. Most waterproof garments use this dwr water repellent treatment, and the advantage of using dwr treatment is that the surface of the garment does not absorb moisture, thus ensuring that the waterproof fabric can achieve good breathability, so that the human body has a very good wear. Feel.

In short, waterproof fabrics can basically achieve 100% waterproof, but in order to obtain a more comfortable wearing experience, these waterproof fabrics have a good ventilation effect, dwr water repellent treatment is also necessary. In addition, the complete waterproofing of the garment is also closely related to the waterproof performance of the garment accessories such as rubber strips and zippers used at the seams, because the waterproof and water repellent of the fabric refers to the functionality of the fabric itself, the needle eye at the seam or The zipper gap cannot be 100% waterproof if it is not treated.


The Waterproof and oil repellent fabric is also called [breathable fabric". It is a functional fabric that combines oil-proof, waterproof, moisture-permeable and warm-keeping properties after PU coating or film coating. It can resist the invasion of rain and stains. The body's hot air and sweat can be discharged in time to keep the body dry, warm and comfortable.
   The Waterproof and oil repellent fabric produced by Xinke Protective has excellent waterproof and moisture permeability. The products have been tested by the authoritative testing institutions SGS and ITS. The water pressure resistance can reach 10000 MM or above and the moisture permeability can reach 8000g/m2 for 24 hours.
Of course, you can also combine anti-static fabric and flame retardant fabrics or insect repellent fabric to combine their functions to choose the right multi-functional fabric.
Water Oil Repellent Fabric, Repellent Fabric, Waterproof Fabric, Oil Repellent Fabric
Ningbo Rongyi Chemical Fiber Science&Technology Co.,Ltd. http://www.coverallsuits.com