Device for producing BC (bacterial cellulose) composite

Abstract

The invention relates to a device for producing a BC (bacterial cellulose) composite. The device comprises a culture medium container, rolling shafts, a framework material, a feeding drum, a collecting drum, a guide roll and a press roll, wherein two rows of the rolling shafts are arranged in the culture medium container in parallel, the rolling shafts in each row are spaced in parallel, the rolling shafts in the two rows are staggered in parallel, and the framework material enters the culture medium container firstly through feeding by the feeding drum and guide by the guide roll, then is wound in a staggered manner along two rows of the rolling shafts and conveyed in the culture medium container in an S-shaped track through rolling by the rolling shafts and finally is pulled out of the culture medium container to penetrate through the press roll and be guided into the collecting drum to be wound and collected. Efficient, continuous and large-scale production of the BC composite is realized, the product composite quality is improved, bacterial breeding of a culture medium is accelerated, and the utilization efficiency of the culture medium is improved.

Description

Technical field [0001] The invention belongs to the technical field of bacterial cellulose production, and particularly relates to a device for producing bacterial cellulose composite materials. Background technique [0002] Bacterial Cellulose (BC for short) is a kind of pure cellulose produced by microorganisms, sometimes commonly known as "coconut fruit", which can be widely used in food, facial masks, high-strength functional materials, textiles, papermaking, artificial blood vessels, tissue engineering Stents, artificial skins and medical dressings. However, the existing shallow tray fermentation production equipment has low production efficiency and output, low mechanization degree, high labor intensity, and continuous production. Therefore, it is urgent to develop a new type of fermentation device with high output and high-efficiency continuous production. [0003] In terms of medical dressings, wet bacterial cellulose is inconvenient due to insufficient mechanical strengt...

AI Technical Summary

Problems solved by technology

[0003] In terms of medical dressings, due to the insufficient mechanical strength of wet bacterial cellulose, it is easy to break during use and cause inconvenience in use. To achieve the same mechanical properties as degreasing gauze, the cellulose film is required to reach a certain thickness, which will increase the hardness of the film. , the skin-adhesiveness decreased significantly

[0004] The existing methods of preparing bacterial cellulose membrane composite materials all use static culture technology, including placing the materials that need to be composited with bacterial cellulose in the culture solution for co-cultivation, and doping the bacterial cellulose membrane with organic polymers or inorganic substances by impregnation. Composite, the efficiency is not high; and because the cellulose is only formed on the surface of the medium, the cellulose composited by the static culture method is less, and the distribution is uneven, and it cannot cover most of the gaps in the materials that need to be composited, such as gauze. very long

Images