Hawach makes unremitting efforts to improve performance and prolong the service time of filter paper, specific as followed, pure cotton linters or cotton linters with refined pulp are adopted in the production process, which presents a good retention and flow rate in applications. It is especially fit for retaining the fine precipitates encountered in analysis.
Hawach puts suggestion and requirement of customers on priority, and adhere to the principle of first-grade product, first-grade service to customers. Additionally, Hawach promises to assist you to overcome all problems in filter applications and suggest the best solutions for your filtration needs.
Easy to make filter paper?
Filter paper provides an effective means of removing as much of the contaminated particles as possible from liquids and gases and has a lower resistance limit to make it widely used.
It seems that the manufacturing of filter paper is very simple, which is nothing more than immersing a variety of fibers in a water-based binder to completely disperse them, and then dried, dipped, and dried again to achieve an acceptable humidity level.
The difficulty of manufacturing quality filter paper
Actually, to make efficient, the reliable filter paper is not that simple. Because different fiber types, weights, and thickness combinations will produce different filtration characteristics.
The characteristics of different batches of wood pulp are also different, but the production of filter paper should be kept the performance consist of different batches and rolls. What’s more, the range of weight, porosity, gas permeability and strength is required to be narrow.
A theoretically perfect filter paper should filter out 100% of the contaminated particles while providing consistent gas permeability. In fact, this is impossible. So, the design of the filter paper must be done with the utmost effort to balance the various indicators to effectively protect the system to be filtered.