Method for papermaking through white willow planted in saline-alkali soil
A technology for saline-alkali land and white willow, applied in the field of paper manufacturing, can solve the problems of shortage of papermaking raw materials and waste of adult wood, and achieve the effects of strong adaptability, wide range and high quality
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Embodiment 1
[0010] The paper-making method of white willow planted in saline-alkali land includes paper-making processes such as material preparation, cooking, pulping, sand removal, bleaching, and papermaking.
[0011] Among them, the material is prepared, the white willow is cut to length 10cm, and the section is less than 1cm in diameter, and then rinsed with hot water with sodium dodecyl sulfonate 10mg / L and water temperature of 60℃ for 10 minutes to remove impurities, and then milled Crushed.
[0012] Said cooking uses 10% of the white willow based on NaOH, anthraquinone is 0.05% of the weight of the white willow, the material-to-liquid ratio is 1:3, the heating time is 60 minutes, the maximum cooking temperature is 130°C, and the holding time is 180 minutes; Sodium hypochlorite bleaching is carried out with an effective chlorine amount of 1% relative to white willow, a slurry concentration of 2%, a temperature of 40°C, a pH value of 9, and a bleaching time of 40 minutes.
[0013] The slur...
Embodiment 2
[0015] The paper-making method of white willow planted in saline-alkali land includes paper-making processes such as material preparation, cooking, pulping, sand removal, bleaching, and papermaking.
[0016] Among them, prepare the material, cut the white willow to length 15cm, and cut the section less than 3cm in diameter, and then use sodium lauryl sulfonate 100mg / L, water temperature 70 ℃ hot water for 20 minutes to wash away impurities, and then grinding Crushed.
[0017] Said cooking uses 30% of white willow based on NaOH, anthraquinone is based on weight of white willow 5%, material-to-liquid ratio is 1:5, heating time is 120 minutes, the maximum cooking temperature is 180°C, and holding time is 360 minutes; Sodium hypochlorite bleaching is carried out at a temperature of 60°C and a PH value of 11 with an effective chlorine amount of 5% relative to white willow, and a slurry concentration of 6%, and the bleaching time is 90 minutes.
[0018] The slurry concentration of the bea...
Embodiment 3
[0020] The paper-making method of white willow planted in saline-alkali land includes paper-making processes such as material preparation, cooking, pulping, sand removal, bleaching, and papermaking.
[0021] Among them, prepare the material, cut the white willow into segments with a length of 12cm and a diameter of less than 2cm after sectioning, and then rinse with 50mg / L sodium lauryl sulfonate and hot water at 65℃ for 15 minutes to remove impurities, and then mill Crushed.
[0022] Said cooking is 20% of white willow based on NaOH, anthraquinone is 3% of weight of white willow, material-to-liquid ratio is 1:4, heating time is 90 minutes, maximum cooking temperature is 150°C, and holding time is 270 minutes; Sodium hypochlorite bleaching is performed with an effective chlorine amount of 3% relative to white willow, a slurry concentration of 4%, a temperature of 50°C, a pH of 10, and a bleaching time of 70 minutes.
[0023] The slurry concentration of the beating is 8%, the beating...
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