Production method of glassine paper
A glassine base paper and production method technology, applied to paper, papermaking, papermaking machines, etc., can solve the problems of huge equipment investment, large energy waste, high production cost, etc., shorten the process flow, reduce production cost, and improve market competitiveness Effect
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Embodiment 1
[0013] a. beating the long fiber and the short fiber, the beating degree of the long fiber is 50°SR, and the beating degree of the short fiber is 70°SR;
[0014] b. According to the weight ratio of long fiber: short fiber is 90:10, and add 0.05% (weight) of sizing agent alkyl ketene dimer to mix, dehydrate through wire part, press, and dry in the front section. The water content is controlled at 5%, and the surface sizing agent starch is added for surface sizing, and the sizing amount is 3g / m 2 , After drying, the moisture content is controlled at 9%, and the ratios listed above are relative to the total amount of pulp;
[0015] c. Paper passes through two calendering zones during super-pressure calendering. Each calendering zone consists of a hard roll and a soft roll. The pressure is 1500kN / m, and the temperature of the roll surface is 250°C.
Embodiment 2
[0017] a. beating long fibers and short fibers, the beating degree of long fibers is 80 ° SR, and the beating degree of short fibers is 40 ° SR;
[0018] b. According to the weight ratio of long fiber: short fiber is 50:50, and add sizing agent olefin-based succinic anhydride 0.5% (weight) for mixing, dehydration, pressing, front-stage drying, moisture control at 11%, adding surface sizing agent polyvinyl alcohol for surface sizing, the amount of sizing is 0.5g / m 2 , After drying, the moisture content is controlled at 15%, and the ratios listed above are relative to the total amount of pulp;
[0019] c. Paper passes through five calendering zones during super-pressure calendering, each calendering zone consists of a hard roll and a soft roll, the pressure is 150kN / m, and the roll surface temperature is 120°C.
Embodiment 3
[0021] a. beating the long fiber and the short fiber, the beating degree of the long fiber is 60°SR, and the beating degree of the short fiber is 50°SR;
[0022] b. According to the weight ratio of long fiber: short fiber is 60:40, and add 0.2% (weight) of sizing agent alkyl ketene dimer to mix, dehydrate through wire section, press, and dry in the front section. The water content is controlled at 4%, and the surface sizing agent starch and polyvinyl alcohol mixture are added for surface sizing, and the sizing amount is 1.5g / m 2 , After drying, the water content is controlled at 12%, and the ratios listed above are relative to the total amount of pulp;
[0023] c. The paper passes through a calendering zone during super-pressure calendering. Each calendering zone consists of a hard roll and a soft roll. The pressure is 250kN / m, and the temperature of the roll surface is 300°C.
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Abstract
Description
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