Paper dyeing process, the object is to dye the role of paper fibers. Mechanism of different Dyes with different pulp, wood is known as basic dyes great affinity, suitable for dyeing pulp lignin content; pulp surface with a strong negative charge, then the Direct Dyes hardly adsorbed ions , with it to reduce the surface charge, the dye near the fiber surface is fixed. Such non-electrostatic adsorption caused, bauxite is commonly used in papermaking dye retention agent, because the majority of paper dyes are anionic, cationic aluminum compound and anionic dye-forming cation may be precipitated and adsorbed on the fiber surface which is to retain this mechanism occurs at pH 4.0-5.2, then the charge density of the aluminum ions is high, the charge is stronger. Paper Paper Dyes, Paper Dyes Applications, Paper Dyes Industries Dynasty Chemicals (NingBo) Co., Ltd. , http://www.dychemco.com
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1) Newly used water pump; usually replace the smooth grease (oil) after 100 hours of operation; replace it once every 500 hours in the future. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
2) Select smooth bearing with smooth grease; after running for 1500 hours; replace the smooth grease; the amount of oil added may not be too much or too little; too much or too little smooth grease will cause the bearing to heat up; The volume of the bearing chamber is 1/2~2/3.
3) Regarding the selection of smooth oil smooth bearings; the amount of oil should be added to the regular orientation.
4) The container with smooth oil or smooth grease should be clean; it should be sealed normally; there should be no dust, iron filings, etc.; avoid damage to the bearing.
5) Motor bearings usually use sodium-based smooth grease; this smooth grease is characterized by high temperature (125 ° C); but it is easy to dissolve in water; so it can not be used for the smoothness of water pump bearings.
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Dyes commonly used in the paper coating colored paper, the dye and the paper fibers by covalent bond, ionic bond between, with the key, and molecular hydrogen binding forces, which depends on the color fastness of adhesion strength, exactly in what based combination, depending on the structure of the dye molecule.
Pump bearing protection "detailed analysis"
Source: Bearing network time: 2013-10-26