Manufacturing method of bamboo fiber

Abstract

The invention relates to a manufacturing method of bamboo fiber and particularly relates to a method for directly producing raw bamboo fiber from raw bamboos. The method sequentially comprises the following steps of: selecting materials, flattening, softening, opening, performing steam boiling, acid cleaning, dipping flame-retardant treatment and bamboo vinegar treatment and drying, wherein the softening adopts microwave softening, the bamboo material after flattening is soaked in softening liquor, then the bamboo material dipped with the softening liquor is sent into a microwave vacuum tank, and microwave softening treatment is further performed; the dipping flame-retardant treatment adopts vacuum pressurization flame-retardant treatment, during the treatment process, bamboo filament-like fiber obtained after opening is firstly arranged into a vacuum pressurization tank, vacuum-pumping operation is performed to enable the vacuum degree to be minus 0.015MPa-minus 0.025MPa, and then a flame retardant is added into the tank to increase the pressure in the tank to be 0.1MPa-0.8MPa; and the bamboo vinegar treatment comprises primary bamboo vinegar treatment and secondary bamboo vinegar treatment. The manufacturing method disclosed by the invention has the advantages of simplicity and convenience in production and short treatment time, and the produced bamboo fiber has a flame-retardant effect.

Description

technical field

[0001] The invention relates to a method for manufacturing bamboo fiber, in particular to a raw bamboo fiber directly produced from raw bamboo. Background technique

[0002] Bamboo fiber currently on the market has the following two classes: one is the regenerated fiber produced from bamboo pulp, commonly referred to as bamboo pulp fiber; the other is the fiber directly extracted from bamboo through a special process, called raw bamboo fiber. Because bamboo fiber has more superior properties in terms of hygroscopicity, air permeability, and spinnability, the study of spinnable bamboo fiber has obvious economic benefits and good social benefits.

[0003] In recent years, my country has had many invention patents in the bamboo raw fiber manufacturing method, CN11078520C announced a kind of raw bamboo strips, rolling strips, the manufacture method of forming bamboo fiber bundle products, CN1261290C announced a kind of raw bamboo bamboo slices using pure physical...

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