Manufacturing method of weather-resistant, waterproof and high-quality special paper for printing
A manufacturing method and high-quality technology, applied in the field of modern papermaking, can solve problems such as uneven surface tension, loss, shrinkage, and inconsistent stretching of paper, so as to reduce the pressure of deforestation and environmental protection, reduce dependence, and reduce energy consumption Effect
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Embodiment 1
[0050] A method for manufacturing weather-resistant and waterproof high-quality printing special paper of this embodiment comprises the following steps:
[0051] Step one, prepare preliminary pulp:
[0052] First crush the waste paper pulp fibers, add lye with a concentration of 1.5% to soak for 20 hours, add them to the fiber dissociation device and stir while washing with clean water, and then mix 70 parts by weight of the cleaned waste paper pulp fibers, 10 parts of raw wood pulp, Add 20 parts of bleached kraft softwood pulp to a hydropulper for fiberization and then process it through a conical refiner. The beating degree is 22°SR, and the refining concentration is 4wt%. 2% mature clay suspension, stir well to obtain preliminary pulp;
[0053] The slaking clay suspension is prepared by adding the purified palygorskite clay into an inorganic dilute acid solution for 60 min in a water bath at a temperature of 80°C, then adding sodium lauryl sulfate to the acidified suspensi...
Embodiment 2
[0074] A method for manufacturing weather-resistant and waterproof high-quality printing special paper of this embodiment comprises the following steps:
[0075] Step one, prepare preliminary pulp:
[0076] First crush the waste paper pulp fibers, add 1.5% lye and soak for 30 hours, add them into the fiber dissociation device and stir them while rinsing with clean water, and then mix 90 parts of waste paper pulp fibers, 20 parts of raw wood pulp, Add 30 parts of bleached kraft softwood pulp into a hydropulper for fiberization and then process it through a conical refiner. The beating degree is 24°SR, and the refining concentration is 6wt%. 3% mature clay suspension, stir well to obtain preliminary pulp;
[0077] The slaking clay suspension is prepared by adding the purified palygorskite clay into an inorganic dilute acid solution for 70 minutes in a water bath heat treatment at a temperature of 90°C, then adding sodium lauryl sulfate to the acidified suspension to fully stir,...
Embodiment 3
[0098] A method for manufacturing weather-resistant and waterproof high-quality printing special paper of this embodiment comprises the following steps:
[0099] Step one, prepare preliminary pulp:
[0100] First crush waste paper pulp fibers, add lye with a concentration of 1.5% and soak for 25 hours, add them to a fiber dissociator while rinsing with clear water while stirring, then mix 80 parts by weight of waste paper pulp fibers, 15 parts of raw wood pulp, Add 25 parts of bleached kraft softwood pulp to a hydropulper for fiberization and then process it through a conical refiner. The beating degree is 22-24°SR, and the refining concentration is 4-6wt%. Accounting for 2.5% of the weight of the fiber pulp, the mature clay suspension is stirred evenly to obtain the preliminary pulp;
[0101] The slaking clay suspension is prepared by adding the purified palygorskite clay into an inorganic dilute acid solution for 65 min in a water bath at a temperature of 85°C, then adding ...
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