Manufacturing method and product of high surface strength offset printing paper
A technology of offset printing paper and high surface, applied in the field of offset printing paper, can solve the problems of low filler retention rate, retention affects the application effect of fillers, etc., so as to improve filler retention rate, protect ecological environment and resources Efficient utilization and good paper quality
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Embodiment 1
[0027] The preparation of embodiment 1 offset printing paper
[0028] 1. Preparation of surface sizing agent:
[0029] (1) Weigh the following components by mass percentage: 2.0% oxidized starch, 1.0% polyvinyl alcohol, 0.01% AKD, and the rest is water; (2) Fully mix and stir each component in water, Instantly.
[0030] 2. Preparation of offset printing paper
[0031] 1) Add porous calcium silicate with a mass percentage of 55% relative to the dry mixed wood pulp fiber to the mixed wood pulp fiber for mixing, adjust the slurry concentration to 10%, and process it in a refiner or PFI mill until the obtained Mixed pulp with a beating degree of 48°SR;
[0032] 2) Add cationic starch, AKD and polyacrylamide to the mixed slurry obtained in step 1) sequentially, the amount of cationic starch added is 15kg / ton of paper, the amount of AKD added is 2kg / ton of paper, and the amount of polyacrylamide added is 0.3kg / ton Paper;
[0033] 3) Use the slurry prepared in step 2) to make pa...
Embodiment 2
[0035] The preparation of embodiment 2 offset printing paper
[0036] 1. Preparation of surface sizing agent:
[0037] (1) Weigh the following components by mass percentage: 2.5% potato starch, 0.5% polyvinyl alcohol, 0.01% AKD, and the rest is water; (2) Fully mix and stir each component in water, Instantly.
[0038] 2. Preparation of offset printing paper
[0039] 1) Add porous calcium silicate with a mass percentage of 25% relative to the dry fiber to the wood pulp fiber for mixing, adjust the slurry concentration to 15%, and process it in a refiner or PFI mill until the beating degree is 48 °SR mixed slurry.
[0040] 2) Add cationic starch, AKD and polyacrylamide to the mixed slurry obtained in step 1) sequentially, the amount of cationic starch added is 10kg / ton of paper, the amount of AKD added is 0.5kg / ton of paper, and the amount of polyacrylamide added is 0.5kg / ton tons of paper.
[0041] 3) Use the slurry prepared in step 2) to make paper, press, and dry to obta...
Embodiment 3
[0043] Preparation of embodiment 3 offset printing paper
[0044] 1. Preparation of surface sizing agent:
[0045] (1) Weigh the following components by mass percentage: 1.5% cationic starch, 0.5% polyvinyl alcohol, 0.003% AKD, and the rest is water; (2) Fully mix and stir each component in water, Instantly.
[0046] 2. Preparation of offset printing paper
[0047] 1) Add porous calcium silicate with a mass percentage of 35% relative to the absolute dry fiber to the wood pulp fiber and mix, adjust the slurry concentration to 25%, and process it in a refiner or PFI mill until the degree of beating is 50 °SR mixed slurry.
[0048] 2) Add cationic starch, AKD and polyacrylamide to the mixed slurry obtained in step 1) sequentially, the amount of cationic starch added is 1kg / ton of paper, the amount of AKD added is 0.5kg / ton of paper, and the amount of polyacrylamide added is 0.1kg / ton tons of paper.
[0049] 3) Use the slurry prepared in step 2) to make paper, press, and dry to...
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