Bobbin Paper Production Technology and Corresponding Production System
A production process and production system technology, applied in the field of papermaking, can solve the problems that fine fibers cannot be spun well, affect the quality of the finished bobbin paper, and the fibers cannot be fully swollen, etc., and achieve easy control, stable and reliable equipment operation, and reduced The effect of production costs
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Embodiment 1
[0073] Embodiment 1 bobbin paper production process
[0074] A bobbin paper production process, comprising the following steps: A1. Pulping; B1. Dehydration forming at the wire part; C1. Pressing; D1. Drying; E1. Calendering; F1. Roll paper.
[0075] The slurry a1 in step A1 is obtained by mixing the pulp x1 made from bobbin paper waste slag and the pulp y1 made from waste cardboard at a weight ratio of 2:8. Wherein: the preparation of becoming slurry x1 comprises the following steps:
[0076] G1. Impurity removal
[0077] Pass the waste slurry through the impurity separator to remove foam, plastic and other light impurity components to obtain g1;
[0078] Put g1 into a coarse sieve with a sieve width of 0.22mm, remove impurities and send it to a desander, after removing sand, the slurry enters the slurry tank to obtain h1;
[0079] H1. Warming up
[0080] Inject steam into the slurry tank, raise the temperature of h1 to 80°C, and keep it warm for 5 minutes to obtain i1; ...
Embodiment 2-6
[0109] Embodiment 2-6 bobbin paper production process
[0110] Embodiments 2-6 respectively provide a bobbin paper production process, and their steps are the same as in Embodiment 1, the only difference is that the corresponding technical parameters are different, and the specific parameters are shown in the table below.
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[0113] The waste pulp slag undergoes a heating process before refining, which is conducive to the fiberization of the waste pulp slag during refining, increasing the specific surface area of the fiber in the waste pulp slag, and is conducive to enhancing the bonding force between fibers. The waste paper pulp classification treatment is beneficial Conducive to fiber length averaging. In the bobbin paper raw pulp provided in this embodiment, the difference in average length between fibers is small, the degree of scuffing of fibers is high, and the binding force between fibers is high.
Embodiment 7
[0114] Example 7 Influence of temperature on fiber properties in waste pulp and residue during waste pulp and residue treatment
[0115] Pulp is one of the important factors affecting the quality of bobbin paper products. The fiber quality in waste paper is better, and the ends of the fibers are easy to fluff during the beating process, so the quality of the prepared slurry is high; however, the waste pulp is generated during the beating process. Tailings, the lignin content in the pulp residue is high, and the lignin is filled between the cells and the microfibers in the cell wall, making the plant rigid. Therefore, the higher the lignin content in the waste pulp residue, the more difficult it is to make pulp .
[0116] Temperature is one of the important factors affecting the fiber performance in waste pulp residue. Within a certain temperature range, the lignin content in waste pulp residue can be significantly reduced. The effect of temperature on fiber performance in the ...
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