Water and oil repellent finish effect – How to improve?

Water and oil repellent finish is one of the most common functional finishing In the functional textile printing and dyeing industry. At present, the water and oil repellent on the market are mainly divided into fluorocarbon waterproofing agents and non-fluorocarbon waterproofing agents. That is what we often say: C8 water repellent, C6 water repellent and fluorine-free water repellent. Although there are certain differences in the principle of water repellent, there is not much difference in the waterproofing process.

1 -There are many types of fabrics. Different fabrics have different structures, thicknesses, and characteristics. When we get the fabric to be tested, we need to determine what kind of fabric it belongs to, so that we can roughly judge its suitable process. condition.

2- Confirm whether the fabric to be treated has been finished before, such as soft finish.

3- Confirm whether the surface of the fabric is clean? Does it contain impurities? Impurities are divided into impurities of the fabric itself (the pre-treatment has not been cleaned), and there are foreign impurities (pre-treatment, additives added during dyeing); if there are impurities on the surface of the fabric, the waterproof effect will be greatly reduced.

4- What is the PH value of the cloth surface? That’s right, it is the PH value of the cloth surface, and the PH value of the cloth surface will affect the waterproof effect. The above are the issues that must be paid attention to before doing waterproof finishing, and it is also the correct preparation of fabrics. Only when we are fully prepared can our next waterproof finishing be carried out more smoothly.

1 In view of these, the first thing we need to consider is customer requirements. As a brand water and oil repellent finish agent supplier, we often receive experimental fabrics from customers, so before the experiment, we have to choose products according to customer requirements. For example, customers specify C6 waterproof agent, or the customer is making an export order and requires environmental protection, then we can only choose C6 waterproofing agent or fluorine-free waterproofing agent.

2 At the same time, according to the actual situation of the fabric, the properties of chemical fiber and cotton are different, and the effect of the same product is also different, so we must consider the actual situation of the fabric when choosing a water and oil repellent finish agent.

3 The third point is the customer’s equipment process. After all, each company’s equipment will be different, and its temperature, rolling rate and time control will be different. Before finishing, we need to consider the customer’s process In this case, whether the equipment can meet the temperature requirements of the product, so as to minimize the error of the experimental results.

As the industry leader, Chevell provdie multiple grades of both non-fluorinated and fluorinated( C8, C6 ) products that provide excellent water and oil repellency to a variety of surfaces.
Through our well-developed polymer design and polymerization technology along with our comprehensive knowledge of water and oil repellency, our products excel in the marketplace!