High-bulk light paper and production method thereof
A production method and light paper technology, applied in the field of papermaking, can solve the problems of not taking into account both bulk and smoothness at the same time, and achieve the effects of improving printing adaptability, high smoothness, and increasing light paper bulk
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[0035] Example 1: A quantitative is 50g / m 2 Production method of high bulk light weight paper
[0036] A: Slurry preparation
[0037] A1: Mix 80% coniferous chemical mechanical pulp and 20% coniferous bleached chemical pulp. The beating concentration is 3.5%, the degree of tapping is 50°SR, and the wet weight is 5.5g.
[0038] A2: The modified light calcium sulfate is 30%; the neutral sizing agent AKD is 1.2%; the enhancer PAE is 3.0% (the above percentages are the mass percentages of the absolute dry slurry), and they are dispersed in the dispersion tank. Then, they were added to the slurry of step A1 in sequence. The order of addition is slurry→wet strength agent→modified light calcium sulfate→neutral sizing agent.
[0039] B: Paper making
[0040] The slurry prepared in step A is sent to the paper machine for making, and the retention aid PAM: 0.5kg / T paper is added before going online.
[0041] C: Surface sizing
[0042] After the first group of drying cylinders of the paper machine...
Example Embodiment
[0060] The second embodiment is 55g / m 2 Production method of high bulk light weight paper
[0061] A: Slurry preparation
[0062] A1: Mix 85% coniferous chemical mechanical pulp and 15% coniferous bleached chemical pulp. The beating concentration is 3.6%, the degree of tapping is 53°SR, and the wet weight is 6.0g.
[0063] A2: The modified light calcium sulfate is 35%; the neutral sizing agent AKD is 1.3%; the reinforcing agent PAE is 3.2% (the above percentages are the mass percentages of the absolute dry slurry), and they are dispersed in the dispersion tank. Then, they were added to the slurry of step A1 in sequence. The order of addition is slurry→wet strength agent→modified light calcium sulfate→neutral sizing agent.
[0064] B: Paper making
[0065] The slurry prepared in step A is sent to the paper machine for making, and the retention aid PAM: 0.55kg / T paper is added before going online.
[0066] C: Surface sizing
[0067] After the first group of drying cylinders of the paper m...
Example Embodiment
[0085] Example 3 A method for producing high bulk light weight paper with a basis weight of 60 g / m2
[0086] A: Slurry preparation
[0087] A1: Mix 90% coniferous chemical mechanical pulp and 10% coniferous bleached chemical pulp. The beating concentration is 3.8%, the degree of tapping is 55°SR, and the wet weight is 6.5g.
[0088] A2: The modified light calcium sulfate is 40%; the neutral sizing agent AKD is 1.5%; the reinforcing agent PAE is 3.5% (the above percentages are the mass percentages of the dry slurry), and they are dispersed in the dispersion tank. Then, they were added to the slurry of step A1 in sequence. The order of addition is slurry→wet strength agent→modified light calcium sulfate→neutral sizing agent.
[0089] B: Paper making
[0090] The slurry prepared in step A is sent to the paper machine for making, and the retention aid PAM: 0.6kg / T paper is added before going online.
[0091] C: Surface sizing
[0092] After the first group of drying cylinders of the paper m...
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