30results about How to "Reduce the probability of residual glue" patented technology

The invention discloses a hemp fiber freezing radiation auxiliary de-gumming technique, comprising the following steps of undergoing UV radiation, quenching, and heating treatment after hot bath, acidpre-etching, and pre-chlorination, and then undergoing base oxygen-mechanical associative de-gumming treatment, finally adding a softener for secondary scouring. The hemp fiber surface de-gumming effect treated by the technique is prior to ordinary base oxygen method and mechanical de-gumming, and the former meets the requirement of product of national first grade; the lignin content meets requirement of finishing technique after spinning, which obtains good whiteness and flexibility, and controls breaking strength and tensile stretch of fiber in requirement of spinnability, with improved length and fineness of fiber is improved, greatly improved serviceability, and less pollutant effluents discharged, so that the invention is environment-friendly.

The invention discloses an extraction method of eucalyptus bark fibers. The extraction method comprises the following steps: cutting eucalyptus barks; adding deionized water, pectinase and lipase intoa cylinder, heating the mixture to 45 DEG C, putting the crushed eucalyptus barks in the cylinder to be soaked and filtered, and then drying the eucalyptus barks with steam at a high temperature; blending boron trifluoride into a 26% alcohol solution, brushing the surfaces of dried eucalyptus thin barks with the solution, and brushing the eucalyptus barks; adding a potassium carbonate solution into a cooking pot, putting the brushed eucalyptus thin barks to be heated and pressurized, and washing the barks with water; putting the washed eucalyptus thin barks in an opener to be opened; mixing deionized water, chlorine dioxide and sodium carbonate uniformly, then adding the washed coarse fibers, soaking the mixture and washing the mixture; dehydrating and drying the washed coarse fibers andloosening the fibers by a carding machine to obtain the eucalyptus bark fibers. The eucalyptus bark fibers extracted by the extraction method are uniform in fiber and few in impurity and the quality of the eucalyptus bark fibers is ensured.

The invention provided an alkaline extracting method of the natural plant fiber. The process is: the material->acid etch->washing->alkaline with oxygen->strike the fiber->washing by the water->washing by the acid->washing by the water->dehydration->shake the fiber->oil feed->dehydration->air dry or oven dry. The fiber can be protected by adding the assistant Mg<2+>, the stability of the H2O2 in the alkali and the chemical assistant, also the nucleophilic reaction of the H2O2 to lignine can reach the best efficient. It can be used for extracting the plant fiber of the spinning, weaving and the dressing.

The invention provides a method for degumming mulberry fiber with bacteria complex flora. The method uses mulberry as a culture medium for a carbon source to filter the bacteria complex flora with good degumming effect to the mulberry from sludge of a methane tank, substrate sludge of a pool, wood, banana land and other samples, has dried mulberry directly immersed into degumming liquid, and inoculates the cultured degumming complex bacterial flora into the degumming liquid for degumming, so that loose mulberry fiber can be obtained via water rinsing and drying. The method has the advantages of mild process condition and simple operation, need not use strong acid or strong alkali, has the manufacturing cost greatly reduced compared with a chemical degumming method, has lower environmentalpollution, less cull in the prepared mulberry fiber and white and loose fiber.

The invention provides a biological degumming tank which is characterized in that a tank body is internally provided with a temperature-regulating device, the outer side wall of the tank body is provided with a jacket regulating the temperature of a space in the tank body, the tank body is externally provided with a circulating pipe used for circulating solution in the tank body, the circulating pipe is internally provided with an air nozzle, and the top of a tank cover is provided with an air outlet. The invention lays the foundation for the industrialization and the scale of bast-fibre biological degumming, lowers the production cost, improves the quality and the yield of bast-fibre, and greatly lightens the pollution to the environment.

The invention discloses a flax degumming liquid and a preparation method thereof, and relates to a plant fiber degumming liquid and a preparation method thereof, which solve the problems that in a current flax retting degumming method, added microorganisms contaminate a flax retting liquid and the environment, and an added pure enzyme preparation is greatly increased in cost and liable to inactivate. The flax degumming liquid is prepared by fermenting in a konjaku flour fluid nutrient medium for inoculating bacillus licheniformis HDYM-03, and centrifuging to get liquid supernatant. The flax degumming liquid is prepared by the following steps: inoculating the bacillus licheniformis HDYM-03 into the konjaku flour fluid nutrient medium to culture; and then, centrifuging to get the liquid supernatant, thereby obtaining the flax degumming liquid. The flax degumming liquid is short in degumming time, complete in degumming, low in residual gum content, high in cellulose yield and high in strength. The preparation method for the flax degumming liquid is simple and low in cost.

The invention provides a bast-fibre biological degumming device which is characterized by comprising a seed tank, a biological degumming tank, a steam generating device, an air device and a chemical degumming tank, all the tanks are connected with the devices through pipes with controllers, and the controllers are electrically connected with a programmable controller. The invention develops the direction for the industrialization and the scale of bast-fibre biological degumming, lowers the production cost, improves the quality and the yield of bast-fibre, and greatly lightens the pollution tothe environment.

The invention discloses a method for extracting coconut fiber. The method comprises the following steps: crushing coconut shell; adding deionized water and lipase into a cylinder, conducting uniform mixing, heating the mixture to 45 DEG C, and soaking the coconut shell into a cylinder for 2-3 h after soaking; adding sodium hydroxide solution in a cooking tank, putting the filtered coconut shell into the cooking tank, heating and pressurizing the mixture, cooking the mixture for 1-1.5 h, taking out the cooked coconut shell, and rinsing off the cooked coconut shell with water for 10-15 min; dissecting the rinsed coconut shell in the step (3) into crude fiber by a filament forming machine, and then rinsing the fiber with water for 10-15 minutes; mixing the deionized water with chlorine dioxide and sodium carbonate uniformly, and then the rinsed crude fiber in the step (4); conducting soaking for 30 to 40 minutes, taking out the fiber, and rinsing the fiber with hot water for 15 to 20 minutes; and dehydrating the dried fiber in the step (5), and then loosening the fiber with a carding machine to obtain the coconut fiber. The coconut shell fiber extracted by the method for extracting the coconut fiber of the invention has uniformity, less impurities, low residual fat ratio, and guaranteed quality.

The microbial degumming method of the mulberry fiber disclosed by the invention, the method is to carry out infiltration treatment on the mulberry bark first, and then use the degumming bacteria screened and cultivated from the collected mulberry bark to inoculate the infiltrated mulberry bark for degumming, Then, the degummed fibers are sequentially washed, softened, dehydrated and dried, and finally opened, carded and packaged. Because the present invention uses microbial degumming, it not only reduces the consumption of chemicals such as strong acid and strong alkali, reduces production costs, reduces environmental pollution, and equipment corrosion, but also shortens the process flow, reduces labor intensity, and improves The efficiency is improved, the output is increased, and the fiber is separated more completely, the residual glue rate of the fiber is lower, and the ratio of doubling and stalks is reduced, which greatly improves the quality and production rate of mulberry fiber.

The method for microbial degumming of nettle fiber disclosed by the invention comprises the steps of soaking nettles first, and then inoculating the soaked nettles with degumming bacteria screened and cultivated from collected distiller's grains Degumming is carried out, and then the degummed fibers are washed, oiled, dehydrated and dried in sequence, and finally opened, carded and packaged. Since the present invention adopts microbial degumming, it can not only reduce the consumption of chemicals such as strong acids and alkalis used in conventional chemical methods, reduce production costs, reduce environmental pollution and equipment corrosion, but also shorten the process flow and reduce labor intensity. , improve efficiency, increase output, and also make the fiber separation more complete, the fiber residual glue rate is lower, and the ratio of parallel silk and stems is reduced, which greatly improves the quality and production rate of nettle fiber.

The invention relates to a hemp degumming technology using a steam explosion with a low-temperature treatment and a device. The invention relatest to the hemp degumming technology, in particular to the steam explosion hemp degumming technology, comprising: firstly ramie is marinated for 15 hours in the temperature of 25 deg C; then the ramie which is already marinated by water is put into a groove which contains a solution of NaOH with a concentration of 18 percent to be processed alkali treatment; then the ramie is kept in high pressure; after being kept in high pressure the hemp fiber is processed a decompression steam explosion treatment with the low-temperature treatment. The hemp degumming technology of the invention has the advantages of that a low rate of incomplete glue, light fibre damage, no pollution, reducing cost of degumming, saving degumming time.