Linen fiber processing method for producing hemp rope

[0020] Embodiment 1: a kind of flax fiber processing method of producing hemp rope, and its concrete operation steps are as follows:

[0021] (1) Flax pickling: Take the bundles of flax fibers and put them in a sulfuric acid solution with a concentration of 2g / L, and pickle them at a temperature of 25°C for 40 minutes at a stirring speed of 70r / min. During the pickling process, control the flax fibers. The weight ratio of sulfuric acid solution is 1:10.

[0022] (2) Pressurized scouring: pick up the pickled flax fiber in step (1) and wash it to neutrality, put it into a sodium hydroxide solution with a concentration of 4g / L, and cook it when it is pressurized to 180kPa During the scouring process, the weight ratio of flax fiber and sodium hydroxide solution was controlled to be 1:3, and the scouring temperature was 120 °C; in addition, the sodium hydroxide solution also contained 2g / L sodium silicate, 1~2g / L L of sodium sulfite and 1g / L of water softener.

[0023] (

[0025] Embodiment 2: a kind of flax fiber processing method of producing hemp rope, and its concrete operation steps are as follows:

[0026] (1) Flax pickling: Take bundles of flax fibers and put them in a sulfuric acid solution with a concentration of 3 g / L, and pickle them at a temperature of 25°C for 30 minutes at a stirring speed of 80 r / min. During the pickling process, control the flax fibers. The weight ratio of sulfuric acid solution is 1:10.

[0027] (2) Pressurized scouring: pick up the pickled flax fiber in step (1) and wash it to neutrality, put it into a sodium hydroxide solution with a concentration of 5g / L, and cook it under pressure to 198kPa During the scouring process, the weight ratio of flax fiber and sodium hydroxide solution was controlled to be 1:3, and the scouring temperature was 130 °C; in addition, the sodium hydroxide solution also contained 2g / L sodium silicate, 1~2g / L L of sodium sulfite and 1g / L of water softener.

[0028] (3) Flax bl

[0030] Embodiment 3: a kind of flax fiber processing method of producing hemp rope, and its concrete operation steps are as follows:

[0031] (1) Flax pickling: Take the bundles of flax fibers and put them in a sulfuric acid solution with a concentration of 2g / L, and pickle them for 40 minutes at a temperature of 35°C at a stirring speed of 70r / min. During the pickling process, control the flax fibers. The weight ratio of sulfuric acid solution is 1:10.

[0032] (2) Pressurized scouring: pick up the acid-washed flax fiber in step (1) and wash it to neutrality, put it into a sodium hydroxide solution with a concentration of 4g / L, and cook it when it is pressurized to 192kPa During the scouring process, the weight ratio of flax fiber and sodium hydroxide solution was controlled to be 1:3, and the scouring temperature was 125 °C; in addition, the sodium hydroxide solution also contained 2g / L sodium silicate, 1~2g / L L of sodium sulfite and 1g / L of water softener.

[003