Method for making manual watercolour paper
A watercolor painting paper and a manufacturing method technology, applied in papermaking, paper coating, papermaking machines, etc., can solve the problems of scratch resistance, non-absorbent, poor color reproduction, etc., and achieve the effect of strong aging resistance and good painting performance
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Embodiment 1
[0039] Step 1, beating: 100% bleached cotton pulp (whiteness not less than 80 degrees). The raw materials are added to a 300-liter beater for beating, and the beating time is about 1 hour until the fibers of the raw materials are completely dispersed;
[0040] Step 2. In-pulp sizing: After the beating is completed, first lift the beating knife roller of the beating machine, and then add neutral sizing agent AKD with a dry weight of 0.1% of the raw material to the beating machine that has been beaten. Make it disperse evenly for about five minutes; then add wet strength agent PAE of 0.1% dry weight of the raw material to the beater, and run the knife for about five minutes to make it evenly dispersed to form pulp;
[0041] Step 3: Pour the pulp into a 1.2-meter-long, 1.2-meter-wide, and 1-meter-deep stainless steel papermaking tank, and add water until the slurry concentration is 2‰ (the weight percentage of absolute dry fiber to water), and carry out after fully mixing. fish ...
Embodiment 2
[0050] Step 1, beating: add 100% bleached hemp pulp (whiteness not less than 80 degrees) raw materials into a 300-liter beating machine for beating, and the beating time is about 1 hour until the fibers of the raw materials are completely dispersed;
[0051] Step 2. In-pulp sizing: After beating, first lift the beating knife roller of the beater, and then add neutral sizing agent AKD with a dry mass of 0.2% of the raw material to the beater that has been beaten. Make it disperse evenly for about five minutes; then add wet strength agent PAE with 0.2% absolute dry mass of raw materials into the beater, and run the knife for about five minutes to make it disperse evenly to form pulp;
[0052] Step 3: Pour the pulp into a stainless steel tank with a length of 1.2 meters, a width of 1.2 meters, and a depth of 1 meter, and add water until the concentration of the pulp is 2‰, mix well and then fish out the paper;
[0053] Step 4. Fishing paper: use copper net or bamboo screen to fis...
Embodiment 3
[0061] Step 1, beating: Add half of the bleached cotton pulp and half of the bleached hemp pulp into a 300-liter beater for beating. The beating time is about 1 hour until the fibers of the raw materials are completely dispersed;
[0062] Step 2. In-pulp sizing: After the beating is completed, first lift the beating knife roller of the beater, and then add neutral sizing agent AKD with a dry weight of 0.3% of the raw material to the beater that has been beaten, and move the knife Make it disperse evenly for about five minutes; then add wet strength agent PAE with 0.3% absolute dry mass of the raw material into the beater, and run the knife for about five minutes to make it disperse evenly to form pulp;
[0063] Step 3: Pour the pulp into a stainless steel tank with a length of 1.2 meters, a width of 1.2 meters, and a depth of 1 meter, and add water until the concentration of the pulp is 2‰, mix well and then fish out the paper;
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