Modified and optimized environmentally friendly preparation method of propaganda color page paper
A color page and modification technology, applied in pulp beating/refining method, pretreatment with acidic compounds, paper, etc., can solve the problems of easy fading in printing, poor waterproof performance, easy to be affected by moisture, etc.
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Embodiment 1
[0051] A modified, optimized and environmentally friendly preparation method of paper for publicity coloring pages in this embodiment comprises the following steps:
[0052] Step one, prepare primary pulp:
[0053] 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;
[0054] 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 ...
Embodiment 2
[0075] A modified, optimized and environmentally friendly preparation method of paper for publicity coloring pages in this embodiment comprises the following steps:
[0076] Step one, prepare preliminary pulp:
[0077] 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;
[0078] 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...
Embodiment 3
[0099] A modified, optimized and environmentally friendly preparation method of paper for publicity coloring pages in this embodiment comprises the following steps:
[0100] Step one, prepare preliminary pulp:
[0101] 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;
[0102]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, t...
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