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Why need to do leather waterproof test?

Why need to do leather waterproof test?

2021-06-04

What role does leather play in life? 


Leather can be seen everywhere in people's lives. Not only can be used to make practical clothing, shoes and bags, but also the aesthetics and fashion of products can be better improved by using leather. In the process of leather production and processing, it is necessary to use waterproof means to improve the waterproof, anti-fouling and oil-proof performance of leather products, so as to better extend the service life of leather products.


What are the benefits of waterproof treatment?


The waterproof treatment of leather can better improve the quality of the leather, and at the same time give users a comfortable experience. Through the analysis of leather waterproof technology, it can be found that a good waterproof technology should not only choose a reasonable waterproofing agent based on the actual situation of the leather, but also combine scientific and reasonable treatment methods to achieve the effect of effectively improving the water resistance of the leather. At the same time, it should be noted that in terms of leather waterproof detection, it is necessary to test the leather waterproofness in combination with the conditions that will occur during normal use, so as to better ensure the authenticity and validity of the data. 


At present, as an important practical index, the waterproof performance of leather has attracted the attention of all walks of life. On the basis of ensuring the waterproof performance of leather, it is also necessary to improve or protect other properties of leather, such as original hand feeling, mechanical properties, breathability, etc. 


1. Water-repellent treatment process


The water-repellent treatment process of leather is to increase the keratin in contact with the pores by treating the surface of the leather. In order to improve the waterproof performance of leather, people think of many ways in continuous attempts. 


In the early waterproofing process of leather, people used paraffin or grease to paint the surface of the leather or fill it into the leather fiber to improve the water resistance of the leather. However, the use of this method will greatly reduce the air permeability and water permeability of the leather, and under normal circumstances, this traditional waterproof technology requires a large amount of painting on the leather surface to have a good water resistance effect. The leather treated in this way is in The comfort during wearing and use will be greatly reduced, so this waterproof treatment technology is no longer the best choice. 


With the continuous development of science and technology, the current leather waterproof treatment technology has been well improved and innovated. At present, the widely used leather waterproof treatment technology uses a variety of waterproof materials to improve the waterproof performance while also improving the comfort of leather use. 


2. Leather water resistance test


In the process of testing the waterproof performance of leather, it is usually necessary to simulate the state of exercise, because the leather is usually in a state of motion during use and wearing. Therefore, in order to ensure the performance of the leather, the waterproof performance should also be tested in accordance with the normal use of the article.


The usual testing methods are carried out with the help of modern waterproof testing instruments. At the same time, they should also be combined with the international ISO standard certification and the leather quality-related standard requirements of the International Leather Chemists Association, and refer to the waterproof testing methods of these standards. The principle of waterproof testing is to conduct waterproof testing by simulating the tensile deformation and tortuous state of leather caused by people during use. The main waterproof test items include: the number of flexing times or the corresponding time that the leather needs to pass through from one side to the other side, the water absorption during this time, the water permeability in a longer time range, etc., use these types of tests The method can reflect the real waterproofness of leather more intuitively and scientifically, so it is widely used worldwide.


GESTER Water Penetration Tester have BALLY Water Penetration Tester, Shoes Lining Seepage Testing Equipment, SATRA TM 230 Dynamic Footwear Water Resistance Tester, Footwear Water Penetration And Flexing Tester, MAESER Water Penetration Testing Machine.Gester Water Penetration Tester Of Leather with more than 20 years of research development and technology accumulation, has become the key technology to improve quality and productivity in lether industry.


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