102results about How to "High fiber content" patented technology

The invention discloses a production method for preparing bamboo dissolving pulp by utilizing natural-color unbleached bamboo pulp in a modifying way, overcoming the defect of poor reaction property of products prepared by an alkali refining method. The production method comprises the following steps of: concentrating and dewatering dredged natural-color unbleached bamboo pulp, and delivering to a double-helix roller type pulp grinder; continuously dewatering in the pulp grinder, and adding liquid medicine; continuously concentrating and kneading the pulp and mixing the pulp with the liquid medicine in the pulp grinder; then delivering the pulp to a stewing machine; and after stewing is completed, conducting subsequent procedures including washing and bleaching till paper making. The invention reduces the preparation cost, enhances the quality of products and increases resource supplying sources; in addition, the bamboo pulp prepared by the production method not only has higher content of alpha-celluloses, but also has good reaction property, and is suitable for filament and staple fibers.

The invention provides a production process of bamboo-dissolving pulp, relating to a treatment method in the field of textile chemical fiber. The process comprises the following procedures of: preparing materials; steaming and pre-hydrolyzing; exchanging steaming and boiling; hermetically screening; bleaching in oxygen-alkali; carrying out acid treatment; manufacturing paper with pulp; and the like. The bamboo-dissolving pulp produced by the invention has the advantages of good product quality, uniform viscosity, high alphacellulose content, high whiteness, yellowing resistance, low pentaose content and good reaction performance and is favorable to production of post-procedures, chlorine-free bleaching and environment-friendly production.

The present invention provides denaturating production process of paper-making wood pulp sheet pulp superior to available denaturated wood pulp sheet producing process. The denaturating production process includes the following steps: paging paper-making wood pulp sheet in a paging device, alkali dipping in 6-18 % concentration alkali solution in a dip vat to form 2.5-8 % concentration pulp, extruding in a extrude, debonding fiber, digesting, washing, depurating, bleaching, washing for the second time, and fishing pulp. The process can obtain high quality wood pulp of soluble viscose fiber stably and has wide material source.

The invention discloses a production method for preparing wood dissolving pulp by modifying true color unbleached wood pulp, overcoming the defects of poor reaction property of a product prepared by using an alkali refining method. The method comprises the following steps of: concentrating and dewatering defibered unbleached true color wood pulp and then sending the pulp into a double-helix roll type refiner; continuing to dewatering in the refiner and adding liquid medicine; finishing continued concentrating, kneading and liquid medicine mixing working procedures on the pulp in the refiner, and then conveying the pulp into a digester; and entering subsequent working procedures comprising washing and bleaching after steaming and boiling until manufacturing paper with pulp. The invention reduces the preparation cost, improves the product quality and enlarges the resource supply source. The wood pulp dregs prepared by the method has higher alpha-cellulose content and good reaction property and is suitable for long and short silk fibers.

The present invention provides denaturating production process of paper-making high viscosity wood pulp sheet pulp superior to available denaturated wood pulp sheet producing process. The denaturating production process includes the following steps: paging paper-making high viscosity wood pulp sheet in a paging device, alkali dipping in 8-18 % concentration alkali solution in a dip vat to form 2.5-4.5 % concentration pulp, extruding in a extrude, debonding fiber, digesting, washing, depurating, bleaching, washing for the second time, and fishing pulp. The process can obtain high quality wood pulp of soluble viscose fiber stably and has wide material source.

The invention discloses a production process of modified paper-making grade wood pulp, which comprises the following steps: (1) preparing materials, feeding paper-making grade wood pulp boards into a hydraulic pulper, dispersing and dispersing through alkali spraying and agitator, After being sent to the press for extrusion and dehydration, it is sent to steaming balls; (2) cooking, the impregnated slurry enters steaming balls for cooking, and caustic soda is added; (3) chlorination, the cooked slurry is chlorinated, and added Hydrochloric acid, liquid chlorine, caustic soda; (4) bleaching, the chlorinated slurry is sent to the bleaching tank for bleaching; (5) acid treatment, adding hydrochloric acid for acid treatment, spraying into the bleaching tank, and papermaking , Packaged as wood pulp. The invention uses a hydraulic pulper to fully decompose and disperse the slurry, so that the impregnation of the wood fiber and the lye is more uniform, and the uniformity of cooking is greatly improved. Through the cooking process, the content of non-cellulose impurities can be reduced, and the degree of polymerization of cotton fibers can be reduced. Through the chlorination process, part of the colored impurities can be removed, and the content of methyl cellulose can be increased accordingly. Through the bleaching process, the whiteness of cellulose can be improved, and the polymerization can be continuously reduced to remove impurities. Through acid treatment, ash and iron can be removed, and the reaction performance can be improved. The modified papermaking grade wood pulp produced by the invention can meet the index requirement of dissolving wood pulp and meet the production requirement of viscose fiber.

The invention relates to a fiberglass pultrusion grille continuous production line which is characterized by comprising a rack, a core mould propulsion mechanism, automatic yarn laying mechanisms, a resin mixture injection mechanism, a heating solidification mechanism, a core mould demoulding mechanism, a grille cutting mechanism and a grille mould composed of fixed mould bodies and a plurality of moving core mould bodies; and the fixed mould bodies of the grille mould comprises a reinforcing fiber imbedding section fixed mould body, a resin mixture injection section fixed mould body and a heat solidification section fixed mould body which can be all matched with the moving core mould bodies in a core mould moving guide channel correspondingly to form a closed grille-shaped mold cavity. The fiberglass pultrusion grille continuous production line has the advantages that pultrusion manufacturing is conducted in a tunnel-type fixed mould cavity; the situations that each grille rib can allow more fibers to be placed in, steeping of matrix resin is more uniform and consistent, and materials are in the process state needed by pultrusion at the time of solidification and forming are guaranteed correspondingly, and accordingly continuous pultrusion production of fiber reinforced plastic is achieved finally.

The present invention describes bleached grain products such as bleached whole wheat flour that are obtained having the color and taste of white flour by bleaching whole wheat kernels prior to conventional flour milling. The wheat kernels are treated with a peroxide solution to lighten the color of the bran layers. The bleached grain kernels can be tempered and milled into whole grain flours having 10% to 12% dietary fiber from the bran but which are white in color and bland in flavor. The whitened, high fiber whole wheat flours can be used to prepare good tasting, and nutritious products such as baked goods such as breads and pastries as well as pasta product, and ready-to-eat cereals or grain based snacks.

A wood pulp denaturalization production process for producing viscose fibers is used for solving the problems of high energy consumption, serious pollution, low alpha cellulose content of produced products, poor reactivity and the like of an existing method. The wood pulp denaturalization production process includes the working procedures of wood pulping, repulping, alkali pre-impregnation, cooking, desanding by washing, xylanase treatment, seeping and rinsing, acid treatment, pulp washing and manufacturing paper with pulp. In the working procedure of cooking, 16-22% of alkali is used, 1.75% of additive sulfonate, and the bath ratio is 1:3.5-4. In the working procedure of xylanase treatment, the PH (potential of hydrogen) value is lower than 9, the temperature is 50 DEG C, enzyme is diluted to be 0.125%, reaction time is 1.5-2 hours, the concentration of the pulp is 5-8%, and the dosage of the enzyme is 45-80 grams/ton. The pulp is purified by combining chemical treatment with biological treatment, and compared with a pure chemical method, the process has the advantages that the produced wood pulp is high in alpha cellulose content, the dosage of chemical agents is low, and pollution is less.

The invention relates to a processing method of fresh blackberry juice. The produced juice has fresh color and good taste and is free of pigment. The fresh blackberry juice is made by pulping 85 to 90 weight percent of 90 percent or above ripe blackberry fruit and 10 to 18 weight percent of 70 to 80 percent ripe blackberry fruit. As an improvement of the invention, the raw fruit is comminuted into superfine particles and pulped and then filtered through screens of 300 meshes. As another improvement of the invention, ultra-high temperature instantaneous sterilization and cold-aseptic filling are applied to the juice. The ultra-high temperature instantaneous sterilization is performed at the temperature of 128 to132 DEG C for 3-5s; and then, the juice is cooled instantaneously with ice water to about 18 to 23 DEG C and then filled under aseptic conditions. The invention eliminates the need of pigment addition and combines fully-natural juice with improved technologies, improving the blackberry taste defect, maintaining natural and fresh nutrients and cool and ruddy rosy luster of the blackberry fruit and lengthening the shelf life of the fresh juice.

The invention discloses a manufacturing process of antibacterial bamboo pulp used for high-wet-modulus fibre. The manufacturing process comprises prehydrolysis, cooking, oxygen delignification, vibration frame screen screening, first washing, sand removal, first concentration, bleaching, second washing, thermal basic refining, pressurized screen preliminary sizing, second concentration, sodium hypochlorite bleaching, third washing, acid treatment, fourth washing, sand removal and manufacture, wherein a hydrolysis accessory ingredient is added in a cooker in prehydrolysis. The hydrolysis accessory ingredient is added in the prehydrolysis, so that the reaction temperature of the prehydrolysis and cooking processes is reduced, thus the content fluctuation of alpha-cellulose is small, the quality is stable, the indexes can meet the pulp requirement of high-wet-modulus fibre, and the natural deodorization, antibacterial and ultraviolet resistance functions of the bamboo fiber can be furthest remained.

The invention relates to the technical field of viscose fiber production, and in particular, relates to a method for modified production of viscose fibers by natural-color reed paper pulp, wherein themethod comprises the steps: performing alkali impregnation on the natural-color reed paper pulp by adopting continuous alkali impregnation, gradient concentration and countercurrent alkali return; washing and removing by a two-stage pulp extruder series replacement washing mode and a one-stage mesh belt type pulp washer five-section countercurrent washing mode; removing film-shaped or fragment paper pulp by utilizing the mechanical acting force of a disc mill; carrying out first-stage bleaching and second-stage bleaching polymerization reduction treatment on the pulp; and cleaning and replacing by a countercurrent washing mode. According to the method, the alpha-cellulose content of the reed pulp is improved to the greatest extent, the requirement of viscose production on the alpha-cellulose content of the pulp raw material is met, the next bleaching polymerization reduction effect and the fiber reaction performance of the natural-color reed paper pulp are improved, the dust content of a final product is reduced, the damage to alpha-cellulose is avoided to the maximum extent, the alpha-cellulose content is improved, and meanwhile, silicon is prevented from entering a viscose production system.

The invention relates to a cooking aid for preparing chemical fiber pulp and belongs to the field of the preparation of the chemical fiber pulp in textile industry. The invention aims to solve the problem the cooking aid cannot be used for cooking the chemical fiber pulp and is not environment-friendly enough in the cooking technology and the like, and provides the cooking aid for preparing the chemical fiber pulp. The aid comprises the following components in percentage by weight: 3 to 20 percent of sodium sulfite, 1 to 10 percent of magnesium sulfate, 30 to 60 percent of tetrahydro anthraquinone, 5 to 30 percent of sodium dodecyl benzene sulfonate, and 1 to 10 percent of ligninases. The aid can emulsify and remove wax, protein and fat in the cooking of the chemical fiber pulp, improve the penetration and dispersion of cooking medicinal liquid, control the degradation speed of cellulose, improve the content of alp ha cellulose, selectively remove chormophoric groups, improve the half-stuff whiteness and bleachability, reduce life cycle cost (LCC), improve chemical reaction performance, effectively reduce raw material consumption, and reduce the chemical oxygen demand (COD) and chromaticity of cooking waste liquor and other indexes.

The invention relates to a method for preparing chemical fiber pulp, belonging to the field of chemical fiber pulp manufacturing in the spinning industry. The invention aims at solving the problems that a cooking additive cannot be used for cooking chemical fiber pulp in the traditional cooking technology and the traditional cooking technology is not environment-friendly and the like, and provides a method for preparing chemical fiber pulp by using an environment-friendly compound cooking additive. The method comprises the processes of opening cotton, preparing the additive, cooking and the like; the method can be used for emulsifying and removing wax, protein and fat in the cooking process of the chemical fiber pulp and has the advantages of improving the osmosis and dispersion of medicine liquid during cooking, controlling the decomposition speed of the cellulose, improving the alpha cellulose content, selectively removing a chromophoric group, improving half-stuff whiteness and bleachability, reducing LCC (Lignin-Carbohydrate Complex) and others, improving the chemical reaction performance and effectively lowering the raw material consumption and reducing the COD (Chemical Oxygen Demand), chroma and other indexes of the spent liquid during cooking.

The invention discloses a material preparation process suitable for utilizing unbleached wood pulp to prepare dissolving pulp in a modified mode. The process comprises procedures of raw material preparation, dispersion, slicing, impregnation and the like. Specific to unbleached wood pulp raw materials, special process steps and process control parameters are utilized so that the purposes of improving quality of end products, energy saving and emission reduction can be achieved, armour fiber content, yield and whiteness of the end products can be improved, ash content of the end products is reduced, cost control of chemical liquid drug is facilitated, the curve of temperature rising in the follow-up cooking process is stable, poly reduction is even, prepared semi-finished products are suitable for various cooking modes, and the material preparation process has a wide application range.

The invention provides a semi-dull low-elongation viscose fiber as well as a preparation method and application thereof. The viscose fiber is obtained by sequentially performing soaking, grinding, squeezing crushing, kneading, directional polymerization reduction, yellowing, dissolving, filtering, defoaming, curing, spinning drawing and after-treatment on a pulp raw material, and has an index system that the dry fracture strength is more than or equal to 3.10cN/dtex, the wet fracture strength is more than or equal to 1.60cN/dtex, the strength needed for generating 5% of the elongation in a wet state is more than or equal to 0.55cN/dtex, the dry elongation at break is 12-14.5%, and the wet fracture extensibility is 16.0-21.0%. The semi-dull high-strength viscose fiber provided by the invention is prepared by virtue of technical innovation, is a novel fiber variety which has an index system different from that of ordinary viscose fibers and Modal fibers, shows high and strong fiber characteristics, and also shows skin affinity stronger than that of cotton fibers, so that the viscose fiber can effectively replace the existing differentiation viscose fiber, the development and the industrial upgrading of downstream novel textiles can be promoted while the processability of the downstream process of the viscose fiber is improved, and the semi-dull low-elongation viscose fiber can be well applied to the field of production of jean fabrics.

The invention discloses a denatured production process of bamboo pulp for producing viscose fiber, which is used for solving the problems of low methyl fiber, poor reactivity and the like. The denatured production process is characterized in that the process is carried out according to the following procedures of: crushing of pulp boards, preimpregnation of alkali, two-stage insulation and cooking, washing of materials, sand removal, bacterial xylanase treatment, bleaching, acid treatment and sorting; and the process parameters in the bacterial xylanase treatment are as follows: the PH value of pulp is less than 7-9, the temperature is 40-50 DEG C, the enzyme is diluted to be 0.125%, the reaction time is 1.5-2 hours, the concentration of the pulp is 5-8%, and the used amount of the enzyme is 45-80g/t. The bamboo pulp produced by adopting the process has the advantages that the content of methyl fiber is high, the pollution is little, individual viscose spinning of the viscose bamboo pulp product is successful, the filament-forming quality is excellent, the strength and the whiteness of the fiber are obviously improved, and all physical indexes reach the level of first-grade products in the GB/T14463-93 standard.

The invention discloses a preparation method of a decomposition agent for local straw returning to the field. The method comprises steps as follows: a bacillus subtilis agent fermentation broth is obtained from bacillus subtilis sequentially through slant culture of strains in a test tube, activating culture in a shake flask, fermentation in a seed tank and fermentation in a fermentation tank; anaspergillus niger agent fermentation broth is obtained from aspergillus niger sequentially through slant culture of strains in the test tube, activating culture in the shake flask, fermentation in theseed tank and fermentation in the fermentation tank; a trichoderma reesei agent fermentation broth is obtained from trichoderma reesei sequentially through slant culture of strains in the test tube,activating culture in the shake flask, fermentation in the seed tank and fermentation in the fermentation tank; a saccharomyces cerevisiae fermentation broth is obtained from saccharomyces cerevisiaesequentially through slant culture of strains in the test tube, activating culture in the shake flask, fermentation in the seed tank and fermentation in the fermentation tank; the bacillus subtilis agent fermentation broth, the aspergillus niger agent fermentation broth, the trichoderma reesei agent fermentation broth and the saccharomyces cerevisiae fermentation broth are mixed, and the decomposition agent for local straw returning to the field is obtained. The decomposition agent obtained with the preparation method has high decomposition efficiency and short decomposition time.

The invention discloses a cooking process for carrying out composite modification on natural color bamboo paper pulp and cotton paper pulp to form dissolving pulp. The cotton paper pulp is fed into a digester by a conveyor to be separately cooked; the cooked cotton paper pulp is compounded with the natural color bamboo paper pulp which is subjected to material preparation; the composite paper pulp is fed into a continuous digester to be cooked; a continuous steaming pipe of the continuous digester is provided with three sections; the section connected with a pre-reaction bin is provided with a steam pipe and a T-shaped pipe; the other two sections are provided with steam pipes; steam is filled into the continuous digester through the steam pipes; and alkali liquor is added into the continuous steaming pipe by the T-shaped pipe. According to the invention, the natural color bamboo paper pulp and the cotton paper pulp are used as the raw materials, so that the cost of preparing the dissolving pulp is reduced to a great extent and the quality requirement of the dissolving pulp for viscose is also met.