No matter pulp process or paper making process, many surfactants are essential for the during production. Surfactants used as cooking AIDS can promote the penetration of cooking liquid to fiber raw materials, enhance the removal of lignin and resin from wood or non-wood, and play the role of dispersing resin. The anionic surfactants used as resin remover include sodium dodecyl benzene s...
Before selecting the type defoamer, let's learn the principle of antifoaming agents Principle of defoaming agent Antifoam, also known as defoaming agent, has the following principles: 1. Decrease of local surface tension of foam leads to bubble burst The origin of this mechanism is that high alcohol or vegetable oil is sprinkled on the foam. When it dissolves into th...
Textile, printing and dyeing industry includes cotton, wool, silk, hemp and other natural fibers and synthetic fibers from raw materials to products of a series of processing procedures. In this series of processing procedures, mainly involved in sizing, desizing, scouring, bleaching, dyeing, washing, oil, finishing, printing, impregnation, softening, degumming, to wet and other operations. A...
With the development of modern science and technology, high quality and high efficiency are required for pesticide industry.That is, the formulation of pesticides should use a variety of additives, including additives to help the active drug wetting and dispersion;There are additives to improve the storage stability of pesticide products;There are also auxiliaries that achieve specific functions. ...
More and More companies who are traders , know how to choose the type of defoamers in papermaking process. However , how to evaluate defoamer’s performance in papermaking process, they just do some lab in simple test by eye observing the foam. It works but is not comprehensive. In order to evaluate comprehensively, you need to know the air content measure, which is mainly used to detect the ...
In order to improve the cleaning effect and remove impurities from the surface of the steel plate during cleaning, chemical additives such as cleaning agents are added. However, it is easy to produce a lot of foam under high-pressure washing, so it will be used with steel plate cleaning antifoams. The main reason why foam appears during steel plate cleaning is that the steel plate cleaning agent c...
In the pulping and papermaking process, a series of operations after cooking and discharging, such as washing, screening, bleaching, concentration, pulp supply system, surface sizing, coating, black liquor recovery, etc., are all affected by foam to varying degrees. Today Rickman will mainly share with you surface sizing. What is surface sizing? Surface sizing is a procedure in the paper proc...
How to Choose Water Treatment Defoamer? When choosing a water treatment defoamer, it is important to understand its water quality characteristics first! Because there may be differences in water quality from different water sources, including hardness, pH value, dissolved gas content, etc. Therefore, it is necessary to select a defoamer suitable for a specific water quality. Some defoamers may be ...
