A kind of dyeing method and application of high weight paper product
A dyeing method and high-quantity paper technology, which is applied in the field of papermaking, can solve the problems that the brightness and color saturation of the product cannot meet the customer's requirements, the light scattering coefficient of the paper surface is small, and it is difficult to obtain the ideal effect, so as to reduce the impact , strong hiding power and easy operation
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[0028] (2) Preparation of dispersion: Take 60mL of deionized water in a 100mL beaker, add 0.78g of polyacrylate dispersant and 0.72g of propanol, stir with a magnetic stirrer at a speed of 700r / min to completely disperse, and then Add 6g of spare carbon black in step (1), continue to stir and mix evenly to obtain a dispersion.
[0029] (3) Add the above-mentioned dispersion into a ball mill jar, and grind for 12 hours with a planetary ball mill to obtain a color paste.
Embodiment 1
[0031] (1) Take an appropriate amount of hardwood pulp board, bamboo pulp board and bagasse pulp board, soak for more than 4 hours, shred, decompose for 3000r, squeeze the pulp, and measure the water content of the three pulp samples after 24 hours of equilibrium. According to the absolute dry mass percentage of hardwood pulp:bamboo pulp:bagasse pulp 30%:50%:20%, take a pulp sample equivalent to 30g dry pulp in a 1000mL beaker.
[0032] (2) Take 1% spare color paste relative to the dry pulp mass in a beaker, dilute and disperse for future use.
[0033] (3) Add the dispersed pigment into the slurry, dilute the mixture to a concentration of 10% (relative to the absolute dry slurry sample), stir and mix evenly. Put the mixture into a PFI mill and refine it to a degree of freeness of 25°SR.
[0034] (4) Take the equivalent of 250g / m 2 Put the ground slurry required for quantitative paper into a 2000mL beaker, add 800mL of warm water at about 60°C, and dissolve it. Place the bea...
Embodiment 2
[0036] (1) Take an appropriate amount of hardwood pulp board, bamboo pulp board and bagasse pulp board, soak for more than 4 hours, shred, decompose for 3000r, squeeze the pulp, and measure the water content of the three pulp samples after 24 hours of equilibrium. Take a pulp sample equivalent to 30 g of dry pulp in a 1000 mL beaker according to the dry mass percentage of hardwood pulp:bamboo pulp:bagasse pulp: 40%:40%:20%.
[0037] (2) Take 2% spare color paste relative to the dry pulp mass in a beaker, dilute, disperse and set aside.
[0038] (3) Add the dispersed pigment into the slurry, dilute the mixture to a concentration of 10% (relative to the absolute dry slurry sample), stir and mix evenly. Put the mixture into a PFI mill and refine it to a degree of freeness of 30°SR.
[0039] (4) Take the equivalent of 300g / m 2 Put the ground slurry required for quantitative paper into a 2000mL beaker, add 800mL of warm water at about 60°C, and dissolve it. Place the beaker on a...
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