The invention discloses a method for manufacturing carbonized bamboo chopsticks, which comprises the steps of: sawing bamboo into sections, splitting pieces to make bamboo strips;
processing the bamboo strips into bamboo chopsticks with a chopstick forming
machine; placing the processed bamboo chopsticks on a
mass The percentage concentration is 1~2% Na2S2O5 solution for 24~30 hours; take it out and soak it in
clean water for 4~5 times; dry the bamboo chopsticks at 60~120°C to make the
moisture content below 10%; The bamboo chopsticks are stacked neatly, placed in the
carbonization furnace, and
water vapor is introduced, the pressure of the
carbonization furnace is controlled at 0.18~0.2MPa, the temperature is 128~135°C, and
carbonization takes 1.5~3 hours; take out the bamboo chopsticks and dry them. Carbonizing bamboo chopsticks under high temperature and
high pressure can carbonize all nutrients such as
insect eggs, fat,
sugar, and
protein in the bamboo material, fundamentally eliminate the
living space of insects and
bacteria, and make the material lighter. Arranged in the shape of "hollow bricks", the tensile and
compressive strength and waterproof performance are greatly improved. The bamboo chopsticks prepared by using the invention have properties such as anti-
corrosion,
insect-proof,
mildew-proof and
moisture-proof, and the bamboo chopsticks have beautiful and consistent colors.