Is paper defoamer so important? If you don't believe me, take a look
The process of papermaking is mainly divided into two major steps, one is to wash the pulp and the other is to papermaking, whether it is that step is inevitable to produce foam, so you need to use paper defoamer to deal with the defoamer is also a lot of classifications.
Pulping process due to the pulp contains fatty acids, resin acids and other natural substances, after cooking liquid, chemical washing will generate fatty acid soap, fatty acid soap and other foaming substances, a large number of bubbles will be followed by cleaning and transportation and bleaching to bring some trouble resulting in a decline in the quality of the pulp, and therefore the need to use Paper pulping defoamer to deal with. Pulping process used in the Paper pulping defoamer mainly polyether defoamer and silicone emulsion defoamer two categories. Paper pulping defoamer can quickly eliminate the lignin and some surfactants generated by the foam, the use of the effect in the pulping and washing of the pulp is particularly obvious.
For the paper making process, if the foam generated by the paper making process is not solved, it will lead to paper break, white water level fluctuation, pump frequency fluctuation, etc., which directly affects the stability and quality of paper production. The papermaking defoamer can effectively inhibit white water foaming, while the fine bubbles trapped between the fibers, the foam on the surface of the pulp can be eliminated. papermaking defoamer is also able to dissolve the air within the pulp, eliminating large bubbles on the surface of the water, which can avoid the formation of holes, reduce paper breaks and overflow of the pulp storage tank. papermaking defoamer ensure the loss of pulp fibers and chemicals, so that the uniformity and quality of paper are improved.
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