The Study On Process Of Fineness Of Bamboo Fiber

China is a most extensive area, most abundant resource, the earliest utilizing of bamboo country in the world. The type of bamboo, the area of bamboo forest and accumulation is in the first place in the world, the bamboo has special advantage of fast growth, high output, wide utilization, good benefit, short cycle of growing. With the impulse of progress of technology and encouraging the industry of bamboo, the industry of bamboo in china had made rapid progress and became the rising industry in the forest, it has wide foreground of the development.The bamboo fiber is one kind of green, natural resourceful fiber. Its applied foreground is very wide. The exploitation of the bamboo fiber will break through the scopes of utilization of bamboo, accord with the world's textile current of exploiting green textile material, elevate the lever of the textile material, improve the competition force in the worldwide market.In this paper, on the basis of the chemical component and physical capability analysis. Analysized and selected the appropriate bamboo type, studied the flow and conditions of the technics in the production, applied dimethyldioirane to the technics of bleaching and the technical conditions is studied, applied the mechanical extended machine to the manufacturing of bamboo fiber. The conclusion were drawn as follows:1. Through the analysis and compare of the physical properties and chemical properties of kinds of the bamboo, Yudunan bamboo is a comfortable type;2. kefineness of the bamboo may take such a process route: sample preparation-immersing alkali-grinding and carding-washing-streaming-grinding and carding - acid washing-washing-bleaching-DMD-streaming- bleaching- washing- loosing-dehydration- greasing- dehydration- loosing-airing;3. In the studies of streaming and bleaching technics of bamboo, we found that the density and time of alkali treating, the density and temperature of oxygen treating can influence the experiment result obviously. The density and the time of alkali treating decrease the proportion of remnant pectin and the content of lignin, but the speed of the decreasing becomes slower gradually; with the increase of density ofH2O2, the fineness, tension and proportion of protraction decline gradually, the whiteness inclines gradually, the tenderness change anomaly; with the elevation of temperature of bleaching, the whiteness of bamboo fiber increase gradually, the fineness, tenderness and proportion of protraction decline gradually, the tension firstly ascends then descends.4. Because H2O2 is a invalid lignin removed reagent, we adopted a method of pretreatment by DMD. Through the experiment we found that the whiteness and the proporti6n of lignin removing of bamboo fiber had improved. After treatment of DMD, in the preparation of DMD on the spot, we must control 7.0~7.5 in PH strictly; with the dosage of acetone and Oxone, the increase of temperature , the ability of oxidation of DMD improve, the proportion of lignin removing and the effect of bleaching increase, however the increase is not linear.5. Biological degumming is a new developing way, it contribute to descending the fineness of bamboo fiber, and it endow fiber with tenderness , enduring grinding and enduring bending. So biological degumming is an advanced and green degummed method. In the process of producing bamboo fiber, it is a good assistant degummed instrument.6. Mechanical process is very important in the manufacturing of bamboo fiber, it is a key step to degumming from the fiber. Meanwhile the treatment of mechanical extending is favorable to decline the fineness of the fiber, however this method need farther bettering.Zhang wei (Textile material) Supervised by Professor Yu jianyong...