33results about How to "Improve beating degree" patented technology

The invention discloses a method for producing latex paper by using a circular-net multi-cylinder paper machine. 50 to 60 percent of bleached sulfate soft wood pulp, 35 to 45 percent of non-bleached sulfate soft wood pulp and 5 percent of manmade fiber are adopted, and the following technology is used at the same time so as to make the product better: defibrinating by using a previous-low-concentration fiberizer and a rear-middle-concentration fiberizer so that the beating degree is higher and the length of the fiber can be retained to the maximum extent, and the body paper has higher tensile strength and flexibility and is hard to break during use; besides the two different soft wood pulps, a certain amount of manmade fiber is added into the fiber raw material, so that the strength and the anti-abrasion performance of latex paper are enhanced; the body paper subjected to dipping treatment according to an optimized latex formula has higher strength and water, oil and high temperature resistance performance; a specific surface coating and back coating mode is performed on the dipped body paper, so the tensile strength, the bending resistance and the liquid resistance of the finished paper are enhanced; meanwhile, the latex paper is softer and durable, and higher in the surface strength.

The invention discloses a production technology of kraft vermicelli case board paper. The production technology comprises the steps that recycled waste paper materials are screened, the recycled waste paper with low ash content is selected for pulping with softwood pulp, preliminary pulping is conducted through the processes of repulping, purifying, screening and the like, the fiber strength is emphatically improving in the grading and beating processes, longer fibers are screened to serve as surface layer pulp, the fiber beating degree is improved on the condition that the fiber strength is not damaged, and the fiber bonding strength is improved through the fiber arrangement mode on a net portion so as to improve the surface strength, toughness and folding strength of finished paper; by means of the measures of surface sizing, after-drying moisture precise control and finished paper coating, the product has the better explosion-proof line quality advantage and is more environmentally friendly, and the market share of the product is bound to be increased.

The invention relates to a production method of recycled and reused containerboard paper, which comprises a paper body, which sequentially includes a surface layer, a core layer and a bottom layer from top to bottom, and includes the following steps in sequence: the ratio of raw materials for the surface layer, the first crushing solution, the first refining, the ratio of core layer and bottom layer raw materials, the second crushing, the second refining, bottom layer pulp preparation, core layer pulp preparation, wire forming, pressing, first drying, Surface sizing, second drying, calendering, coiling and cutting; the advantages of the present invention: by adding paper anti-burst agent in the forming of the wire part, the contact area between the paper anti-burst agent and the fiber is enhanced to form more hydrogen Bonding, improving the bonding force between fibers, slowing down the horniness of fibers, improving the folding resistance of the cardboard paper, ensuring that the surface does not peel after repeated reuse, thereby reducing the damage rate of the cigarette box and improving the single cycle of the cigarette box Utilization rate, and ensure that the strength of the carton will not decrease or be damaged after repeated reuse, and will not affect the secondary use.

The invention relates to a production process of decorative base paper. The process comprises the following steps: carrying out pulping treatment on wood pulp, thus rough pulp is prepared; carrying out pulping treatment on the rough pulp, defibering fiber in paper pulp, cutting off moderately and brooming, thus mechanical pulp after knocking and needle leaf and broad leaf mixed chemical pulp after knocking are prepared; mixing the mechanical pulp and the chemical pulp, and adding starch and auxiliary chemicals in the pulp, thus pulp is prepared; and adding auxiliary chemicals such as glue, filler after dilution, and preparing the high-grade decorative base paper after the treatment of screening, processing of a wet end, processing of a pressing section, press polishing, paper winding and rewinding and packaging. According to the invention, through the improvement of production technology and devices in the production technology, the ratio of expansion and contraction, thickness, bubble points and other using performances are improved.

The invention discloses a sterile tissue and a production process thereof, and belongs to the technical field of tissue production. The tissue is prepared from, by weight, 20-60% of bleached sulfate softwood pulp, 30-70% of CPMP and 0-10% of broken paper pulp. According to the method, by adopting an appropriate principle and ratio, wet strength agents with low organic chlorine, biodegradable non-toxic fungicides and FDA-authenticated coatings, adopting forming equipment with a low vertical-horizontal tension ratio, a drying and sterilization process at the temperature higher than 40 DEG C andsafe non-toxic chemicals, and combining appropriate pressing printing processes, the produced tissue has the advantages of being low in quantification, low in vertical-horizontal tension ratio, sterile, environmentally friendly and high in water absorption performance.

The invention provides a production method of a high-beating-degree cotton pulp product used for banknote paper, comprising the following steps: a) breaking and opening cotton linter; b) boiling and blanching, wherein, the alkali matching temperature is the normal temperature, the oven-dry amount of the matched alkali relative to the cotton linter is 0.5-4%; the oven-dry amount of hydrogen peroxide relative to the cotton linter is 0.5-5%; the matched alkali liquid ratio is 1:3-5; the relative oven-dry amount of oxygen bleaching stabilizer is 0.1-0.5%; and the relative oven-dry amount of penetrating agent is 0.5-0.9%; c) pulping and removing sands: 1) Holland pulping, wherein the current is 140A-160A, 2) fine fibering, wherein the pulping current is 150A-160A, 3) pulping again, and the pulping current is 300A-350A, 4) jordaning, and 5) removing the sands; and d) pulping. In the invention, low-temperature, low-alkali, boiling and leaching integrated pulping is adopted without chlorine, the boiling and leaching effects is improved by adding the oxygen leaching stabilizer and the penetrating agent assistant; and the produced cotton pulp has high beating degree, good strength, high folding endurance, and can be used for producing the banknote paper.

The invention discloses a preparation method of acrylic board surface lining protective body paper. The preparation method comprises following steps: by weight, 3 to 10 parts of cellulase, 1 to 8 parts of pectase, 3 to 10 parts of xylanase, 0.1 to 0.8 part of an alkylolamide, 0.1 to 0.6 part of Span-60, and 75.7 to 88.8 parts of water are combined to prepare a composite bio-enzyme preparation; byweight, 1 to 5 parts of a mixed pulpboard is introduced into a pulper, 95 to 99 parts of water is added, the composite bio-enzyme preparation is added, and defibering is carried out for 5 to 30min soas to obtain a mixed slurry, wherein the adding amount of the composite bio-enzyme preparation accounts for 100 to 300ppm of the weight amount of absolutely dry paper pulp; the mixed slurry is introduced into a pulping machine for pulp refining, pulping concentration ranges from 1 to 4%, and pulp refining is carried out until beating degree is 20 to 45 DEG SR; obtained paper pulp is subjected to dilution, screen moulding, squeezing, drying, and curling processing so as to obtain a finished product. According to the preparation method, the composite bio-enzyme preparation at an optimal ratio isadded in body paper pulp refining process, so that paper pulp beating degree is increased, pulp refining time is shortened, energy consumption is reduced, pollution is reduced, the ratio of fiber morphological substances in paper pulp is improved, and body paper object amount index is increased obviously.

The present invention discloses a method for designing a refiner plate with equidistant curved bars, comprising following steps of: designing a central bar are of center curved bar and defining the bar angle for the equidistant curved bar; designing circle arcs for curved bars on two sides of center curved bar of equidistant curved bar segment; when the whole refining segment is full of circle arcs, trimming lines of outer circle arcs of the refining segment to complete the design of equidistant circle arcs on the two sides; and if required, dividing the bars into zones. In the present invention, by the definition of the bar angle for the curved bars and the parametric design of the equidistant curved bars by using circle are equations, it is ensured that the flexibility in designing an equidistant curved bar refiner plate is improved.

The invention discloses water-soluble toilet paper and a preparation process thereof, and belongs to the technical field of toilet paper preparation. The method comprises the following steps: washingmixed bleached wood pulp with water, mixing the washed mixed bleached wood pulp and defibered and dispersed sodium carboxymethyl cellulose, and defibering and pulping in a pulping machine to obtain mixed pulp; screening and purifying the mixed pulp, slowly manufacturing paper with pulp by a papermaking machine, and squeezing to obtain paper sheets; and carrying out alkali treatment on the paper sheets by adopting a weakly alkaline sodium salt, drying, and rolling to obtain the water-soluble toilet paper. According to the invention, the preparation of the quick dissociation toilet paper is realized, the process is simple, the cost is low, and the preparation method is suitable for market popularization and application.

The invention discloses a method for adding feather fiber for making air filtering paper applied in the automobile industry. According to the method, hardwood pulp, softwood pulp and feather fiber pulp are mixed uniformly, a fast paper forming device is used for papermaking, then a paper blank is dried in a dryer, and an air filtering paper blank is prepared; styrene-acrylic emulsion and hydroxylsilicone oil emulsion are diluted by deionized water separately and then placed in soaking tanks respectively, the air filtering paper blank is soaked in the diluted styrene-acrylic emulsion at first,redundant emulsion on the paper blank is filtered off by a glue applying machine, and then the paper blank is dried on the dryer; then, the air filtering paper blank is placed into the diluted hydroxyl silicone oil emulsion for soaking, redundant emulsion on the paper is filtered off by the glue applying machine, then the paper blank is dried on a rotating drum type drier and put into a drying box for drying and solidification, and correspondingly the air filtering paper is prepared. The hydroxyl silicone oil emulsion can obviously improve the waterproof performance and dust holding capacityof the filtering paper. Since hydroxyl silicone oil has natural waterproof performance, the filtering paper has excellent waterproof performance, and especially through application of an adhesive structure, the dust holding capacity of the filtering paper is substantially increased.

The invention relates to a wood chip pretreatment method for grey paperboard production, which comprises the following steps of: cutting wood chips by a chipping machine; screening the wood chips by a wood chip sieve to obtain qualified wood chips; uniformly spraying a caustic soda solution on the wood chips in the process of conveying the qualified wood chips by a belt conveyor; fully wetting the wood chips; and falling down the wood chips to a wood chip storage yard for storage. According to the wood chip pretreatment method for grey paperboard production, the surface of the wood chip is fully wetted through the caustic soda solution; the softening effect of the wood chip is promoted; the pulping energy consumption is reduced in the follow-up pulping production; the pulping degree of paper pulp and the fibrillation degree of fiber are improved; and therefore the quality of the paper pulp is improved.

The invention belongs to the field of tobacco products, and relates to a pulping method for reconstituted tobacco, which comprises the following steps of: (1) performing extraction and solid-liquid separation on a tobacco raw material to obtain a solid-phase substance, and grinding the solid-phase substance into pulp by using a high-concentration disc mill, wherein the content of absolutely dry substances in the solid-phase substance is 15-21%, and the gap of a grinding disc is 0.5-1 mm; (2) at the pH value of 3-7 and at the temperature of 20-43 DEG C, using an activated pectinase preparation to perform enzymolysis on the pulp for 0.5-5 hours to obtain an enzymolysis product, wherein 500-6000 u of enzyme activity is adopted for each kilogram of absolutely dry pulp; (3) grinding the enzymolysis product into thick liquid by a high-concentration disc mill, wherein the gap of a grinding disc is 0.3-0.45 mm; and (4) diluting the obtained pulp until the concentration is 0.8%-3.5%, and grinding the pulp by using a low-concentration refiner, wherein the gap of a grinding disc is 0.1-0.25 mm. The invention further relates to the prepared pulp, reconstituted tobacco and application. According to the method, the fiber yield, the beating degree and the fiber crimp rate of the tobacco pulp are improved, and the pectin content of the tobacco pulp is reduced.

The invention belongs to the technical field of household paper, and particularly relates to a pulping method for improving the pulping degree of softwood pulp. The method comprises the following steps: defibering a softwood pulp board by using a hydraulic pulping machine, carrying out heat preservation treatment by using a treatment liquid, and then carrying out pulping with the cooperation of agrinding material. Compared with the prior art, the method provided by the invention has the following advantages that high-temperature soaking treatment is carried out on the softwood pulp board defibering material by using the treatment liquid, the fibers can be swelled, fine fibers are generated or fibers are refined, the fiber structure is destroyed, the effective components of the treatment liquid can enter the inner part of the fibers for forming an amorphous area in the fibers, the combination among the fibers is weakened, then with the cooperation of the use of the grinding material, the fiber surfaces can be further activated and relaxed, and under the mechanical force, the fibers can be easily cut off and fibrillated, so that the improvement of the pulping degree of the softwoodis facilitated.

The invention relates to the technical field of functional microorganism screening and application, and particularly provides bacillus licheniformis for straw degradation and application of the bacillus licheniformis. The preservation number of the bacillus licheniformis is CCTCC NO: M2019438, and the bacillus licheniformis can efficiently degrade straw fibers, is widely applied to straw returning and composting of organic materials, and remarkably improves the decomposition degree and fertilizer efficiency of compost. In addition, the strain can effectively promote softening of straw and is widely applied to the field of papermaking.

The invention discloses a forming method for a multi-element alloy abrasive disc with coarse particles on the surface. The forming method comprises the steps that metal particles and non-metal particles of different granularity are added into an appropriate adhesive according to different proportions to prepare a rack to be adhered to the surface of a casting mold cavity; and then metal liquids are poured at a high temperature, multi-element alloy particles and substrate metal are fused and permeated under the high-temperature action of the metal liquids, so that a hard multi-element alloy layer with relatively high impact resistance and high wear resistance is prepared on the surfaces of grinding teeth. According to the forming method, the multi-element alloy particles are fused and permeated with the substrate metal so that the hard multi-element alloy layer with the relatively high impact resistance and the high wear resistance can be prepared on the surfaces of the grinding teeth,and the surface of the abrasive disc rack is provided with certain coarse grains and micro-pores; and due to the fact that the surface of the abrasive disc rack is provided with the certain coarse grains and the micro-pores, in the pulping process, the friction force of the coarse grains and the micro-pores of the rack on fibers can be increased, and the fibrillation of the fibers and binding force between the fiber can be promoted.