Fine processing method of ramee fiber
A technology of ramie fiber and processing method, which is applied in the field of hemp fiber processing, can solve the problems of large amount of chemicals used, unsatisfactory degumming effect, serious environmental pollution, etc., and achieves the reduction of environmental protection pressure, low production cost and good degumming effect Effect
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Embodiment 1
[0078] Ramie bast raw material origin: Hunan
[0079] The processing method is as follows:
[0080] The ramie bast is placed in a steaming ball, a cooking pot or a cooking tank, immersed in the cooking liquid, heated to a boiling state, and steamed for 0.5 hour to remove impurities from the ramie bast.
[0081] Put the boiled and removed ramie raw material directly into the steam flash explosion device, heat it so that the water vapor pressure in the steam flash explosion device is 1.0MPa, and keep this pressure for 1 minute; then open the valve and release the pressure quickly.
[0082] Collect the ramie fibers ejected from the steam flash explosion equipment, and then make cakes, place the ramie bast and hemp cages obtained from the cakes together in the degumming tank, and pump FeSO with a mass percentage concentration of 0.05% 4 Solution, until the ramie bast is covered, at room temperature, use a high-pressure pump to make FeSO 4 Circulate the solution internally and ex...
Embodiment 2
[0091] Ramie bast raw material origin: Sichuan
[0092] The processing method is as follows:
[0093] The ramie bast is placed in a steaming ball, a cooking pot or a cooking tank, immersed in the cooking liquid, heated to a boiling state, and steamed for 0.5 hour to remove impurities from the ramie bast.
[0094] Put the boiled and removed ramie raw material directly into the steam flash explosion device, heat it so that the water vapor pressure in the steam flash explosion device is 1.5MPa, and keep this pressure for 5 minutes; then open the valve and release the pressure quickly.
[0095] Collect the ramie fibers ejected from the steam flash explosion equipment, and then make cakes, place the ramie bast and hemp cages obtained from the cakes together in the degumming tank, and pump in FeCl with a mass percentage concentration of 0.1%. 2 Solution, until the ramie bast is covered, at room temperature, use a high-pressure pump to make FeCl 2 Circulate the solution internally ...
Embodiment 3
[0104] Raw material of ramie bast Origin: Hubei
[0105] Processing method: In addition to FeSO 4 The mass percent concentration of the solution is 1%, the continuous cooking time of the alkaline degumming solution is 2 hours, urea peroxide is used instead of hydrogen peroxide, and the mass percent concentration of the urea peroxide solution is 1.5%;
[0106] All the other are the same as in Example 1.
[0107] Product inspection test results:
[0108] The obtained fine ramie fiber has a residual glue rate of 2.15%, an average fiber length of more than 40mm, a fiber strength of 6.66cN / dtex, a fiber fineness of 5.29dtex and a breaking elongation of 3.05%.
[0109] It should be pointed out that the above-mentioned surfactants can also be, such as: sodium dodecylsulfonate, sodium lauryl sulfate, sodium dodecylbenzenesulfonate, sodium dioctyl sulfosuccinate, lauryl Alcohol sulfate MA24F, sodium secondary alkyl sulfonate SAS60, pull open powder, rapid penetrant T, penetrant JFC,...
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Abstract
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