Cooking process for carrying out composite modification on natural color bamboo paper pulp and natural color wood pulp to form dissolving pulp
A composite modification, bamboo pulp technology, applied in the field of dissolving pulp, can solve the problems of large chemical consumption, the quality index of dissolving pulp cannot reach the dissolving pulp, and the raw materials are single.
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Embodiment 1
[0035] A. Prepare materials
[0036] The composite pulp board in which natural bamboo pulp accounts for 40% of the composite pulp board is dispersed with a dispersing device such as a bagger, meal feeder, leaf splitter, etc., and the cutting equipment and crushing equipment such as a pulper and a pulverizer are used to disperse the mixed pulp board. Crush the pulp sheet into flocculent form, and send the flocculent composite pulp sheet into the cooking equipment with conveying equipment (fan, cyclone separator, screw conveyor). Liquid, this stock preparation method is called dry stock preparation, and its technological requirements are: a, pulp input amount 4 tons / batch, b, alkali addition amount (with fiber dry weight percentage) 13 ~ 30%, C, liquid ratio 1: 2.0, d. Requirements for quality indicators: Natural bamboo pulp has a cellulose content of 94%, a degree of polymerization of 1200, and an ash content of 0.5%. The natural color wood pulp has a cellulose content of 91%, ...
Embodiment 2
[0049] A. Prepare materials
[0050] The composite pulp board in which natural bamboo pulp accounts for 40% of the composite pulp board is dispersed with a dispersing device such as a bagger, meal feeder, leaf splitter, etc., and the cutting equipment and crushing equipment such as a pulper and a pulverizer are used to disperse the mixed pulp board. Crush the pulp sheet into flocculent form, and send the flocculent composite pulp sheet into the cooking equipment with conveying equipment (fan, cyclone separator, screw conveyor). liquid, this preparation method is called dry preparation, and its process requirements are: a, 5 tons / batch of pulp input, b, 15% alkali addition (percentage of absolute dry weight of fiber), C, liquid ratio 1:3.0, d. Requirements for quality indicators: Natural bamboo pulp has a cellulose content of 95%, a degree of polymerization of 1000, and an ash content of 0.5%. The natural color wood pulp has a cellulose content of 93%, a degree of polymerizatio...
Embodiment 3
[0063] A. Prepare materials
[0064] The composite pulp board in which natural bamboo pulp accounts for 40% of the composite pulp board is dispersed with a dispersing device such as a bagger, meal feeder, leaf splitter, etc., and the cutting equipment and crushing equipment such as a pulper and a pulverizer are used to disperse the mixed pulp board. Crush the pulp sheet into flocculent form, and send the flocculent composite pulp sheet into the cooking equipment with conveying equipment (fan, cyclone separator, screw conveyor). Liquid, this method for preparing materials is called dry method for preparing materials, and its process requirements are exactly the same as in Example 1.
[0065] Material preparation can also be prepared by wet method. The specific steps are: using dispersing device (packing machine, meal feeder, pulper, deflagging machine) → alkali mixing device → mixing device (dipping bucket) → dehydration device (pressing machine) , Pulping machine) → crushing ...
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