1278 results about "Pulp (paper)" patented technology

The invention belongs to the technical field of heated non-combustible cigarettes, and particularly relates to a reconstituted tobacco and a heated non-combustible cigarette prepared by using same. Preparation for the reconstituted tobacco comprises the following steps: firstly preparing a tobacco substrate by manufacturing paper with pulp through a paper-making process; and then, coating spice onto the tobacco substrate, and drying the tobacco substrate to obtain the reconstituted tobacco. The heated non-combustible cigarette prepared by using the reconstituted tobacco comprises a tobacco barrel, cigarette paper packaged outside the tobacco barrel and a composite filter stick connected with one end of the tobacco barrel, wherein a cavity is arranged in the center of the tobacco barrel; a lamellar spacing is arranged between adjacent two layers of the reconstituted tobaccos; the composite filter stick comprises a hollow section and a solid section, wherein the hollow section is in direct contact with the tobacco barrel. The reconstituted tobacco provided by the invention is designed for a heated non-combustible cigarette product, has the advantages of being relatively good in universality and applicability, wide in range of application, capable of simultaneously adsorbing certain harmful substances, capable of meeting physical and mental needs of a consumer, and the like, and has a relatively high practical value and relatively good popularization and application significance.

A preparation technology of a copper-clad laminate based on halogen-free flame-retardant resin compositions comprises the following steps: a fabric glue solution, a glue solution A and a glue solution B are sequentially manufactured; the fabric glue solution is impregnated by 7628 or 2116 glass fabric; solvent is removed in a drying oven to prepare a fabric prepreg; the glue solution A and the glue solution B are sequentially impregnated by wood pulp paper; baking is carried out in the drying oven to prepare a core material prepreg; and finally, two fabric prepregs are respectively pasted on both sides of each of 1-12 core material prepregs, an electrodeposited copper foil is pasted on one side or two sides of each core material prepreg, and the core material prepregs are overlapped and subjected to hot-forming. The copper-clad laminate prepared by adopting the preparation technology has the advantages of low hygroscopicity, high heat resistance, high reliability, high CTI (Comparative Tracking Index), halogen-free and flame-retardant performance, and excellent machinability, and meets the lead-free demand.

The invention discloses a method for improving the reconstituted tobacco paper-base quality through adding calcium carbonate and a reconstituted tobacco paper-base, belonging to the technical field of cigarette production. The method for improving the reconstituted tobacco paper-base quality through adding calcium carbonate comprises the steps of soaking and extracting tobacco stems and tobacco powder, grinding, pulping, sheet making, squeezing and drying, wherein in the sheet making step, the calcium carbonate and guar gum which respectively occupies 10-70% and 0.05-0.5% of the mass percent of the tobacco raw pulp are added into the tobacco raw pulp. Researches show that after the calcium carbonate and the guar gum are added according to an appropriate proportion, the tensile index, tear index and air permeability of the produced reconstituted tobacco paper-base are obviously improved, the whole water-absorption performance of the reconstituted tobacco paper-base is also improved, the tar yield, CO content and total particle matter content of the sheet paper-base are obviously decreased, so that the tar and harm reduction function of the reconstituted tobacco is better played, the combination property of the tobacco sheet is effectively improved, and the operation performance and effectiveness of a reconstituted tobacco production line are improved.

There is provided a filled paper containing a coated filler obtained by coating a filler with a acrylamide copolymer (composite PAM) comprising (A) an anionic polysaccharide and (B) a cationic and/or an amphoteric acrylamide copolymer. The composite PAM is obtained, for example, by mixing the component (A) and the component (B). Since the filler is treated with a combination of the components (A) and (B) different from each other in charge properties and structure, suitable coagulation effect can be attained and the coated filler has excellent affinity for pulp slurry. Therefore, even in the case of a highly filled paper, a large paper strengthening effect can be attained by using a small amount of the chemical agent.

The invention relates to a preparation method of lignin modified phenolic foam, comprising the following steps: modifying high molecular weight lignin in order to degrade into low molecular weight lignin, wherein the activity is improved, replacing the phenol by the degraded lignin, preparing lignin modified resol, mixing with curing agent, foaming agent and surfactant, foaming at room temperature (25-30 DEG C) or in an oven of temperature 40-80 DEG C, finally the modified phenolic foam plastic is obtained after the curing process. The preparation method of the invention has the following advantages: the cost of the phenolic foam is greatly reduced, the toughness of the foam is increased and the brittles is decreased, thus the foam of the lignin modified phenolic foam has good market prospect; the preparation method of the invention provides a high-addition way to the abundant pulp paper-making waste liquid and forestry and agricultural residues, and reduces the dependency of phenolic foam industry on petrochemical raw material phenol.

Disclosed are a novel electron-accepting compound which is a benzenesulfonamide derivative having a specific structure, a heat-sensitive recording material having a heat-sensitive recording layer containing the above electron-accepting compound, a heat-sensitive recording material having a heat-sensitive recording layer containing at least two specific benzenesulfonamide derivatives, a heat-sensitive recording material having a heat-sensitive recording layer containing a benzenesulfonamide derivative and a diphenylsulfone derivatives a heat-sensitive recording material having a heat-sensitive recording layer containing a specific benzenesulfonamide derivative and an ultraviolet absorbent or an aromatic isocyanate compound, and a heat-sensitive recording material having a substrate containing a recycled paper pulp or a non-wood pulp.

These heat-sensitive recording materials are excellent in thermal response, retainability of ground/recorded image, saturation density and retainability of an image portion against light.

The invention relates to electrolytic capacitor paper and a preparation method thereof. Raw paper pulp of the electrolytic capacitor paper is composed of insulation wood pulp, cotton pulp and hemp pulp; at least one of the cotton pulp and the hemp pulp is selected, papermaking is conducted on the cotton pump and/or the hemp pump, and raw paper is prepared by the processed cotton pump and/or hemp pump and the insulation wood pump in a composite mode. According to the technical scheme, high voltage resistant electrolytic capacitor paper is obtained through raw paper production and subsequent coating processing, the high voltage resistant electrolytic capacitor paper is better in strength, soft in hand feeling, good in water-absorbing capacity, low in loss value and excellent in voltage-resistance performance, and the voltage-resistance performance can be increased by over 100 V/mm.

The invention discloses paper pulp made from bamboo fiber, a preparation method of the paper pulp, and a paper product made from the paper pulp and belongs to the field of pulp making and papermaking technology. The whiteness of the paper pulp made from bamboo fiber ranges from 20% to 40% ISO, the tensile index is larger than or equal to 7.9 N*m/g, the folding strength ranges from 15 times to 200 times, the fracture length ranges from 5 km to 10 km, the ash content is smaller than or equal to 1%, the tearing strength ranges from 200 mN to 650 mN, and the beating degree ranges from 10 degree SR to 25 degree SR. The preparation method of the paper pulp made from bamboo fiber includes the steps of raw material breaking, stewing, defibering, defibrination, screening and washing. The paper pulp made from bamboo fiber can be used for making culture paper or paper for daily use. The paper pulp has a good performance parameter, can replace conventional wood pulp and is superior to the conventional wood pulp; the preparation method of the paper pulp has the advantages of being high in yield, easy to operate, convenient to produce, low in cost and environmentally friendly, and the 100% natural features of bamboo fiber are kept.

The invention discloses a high-bulk coating white cardboard and a production process thereof. The high-bulk coating white cardboard comprises a surface layer, a core layer and a bottom layer, wherein the surface layer and the bottom layer respectively contain 25-35 percent by weight of needlebush chemical sulfate pulp; the core layer contains 50-75 percent by weight of eucalyptus or/and maple chemical mechanical pulp; the fixed quantity of the surface layer is 26-34g/m<2>; and the fixed quantity of the bottom layer is 25-32g/m<2>. The bulk of the high-bulk coating white cardboard with white background can reach as high as 1.59-1.79cm<3>/g. The bulk of the high-bulk coating white cardboard with yellow background can reach as high as 1.61-1.75cm<3>/g. The high-bulk coating white cardboard disclosed by the invention is high in stiffness, so that the physical strength and the compressible performance of the packaging cardboard are greatly improved; due to the excellent thickness and stiffness, the service cost of customers can be reduced to the maximum extent; and due to the increase of thickness of paper products, the consumption of fibers is reduced, the consumption of wood is saved and an environment-friendly idea is met.

Broke pulp in a paper making process is obtained by pulping broke, and the broke pulp is made of fibrillated cellulose fibers and cellulose ester (CE) staple fibers having a denier per filament (DPF) of less than 3, or a cut length of less than 6 mm, or crimped, or non-round with a DPF of less than 3. The broke pulp can be added to the stock preparation zone of a wet laid manufacturing facility and fed through a refiner.

The invention discloses a method for preparing reconstituted tobacco paper base made from tobacco stems, wherein the reconstituted tobacco paper base is prepared through taking the tobacco stems as a raw material and adopting a papermaking method and the preparing method comprises the steps of impregnation, defibrination, pulping, sheet making and drying of the tobacco stems. According to the invention, a technical scheme capable of optimizing the comprehensive property of the reconstituted tobacco paper base made from the tobacco stems is provided, which comprises treatment conditions of key processes of the impregnation, the defibrination, the pulping and the like; and a technical mean capable of improving the fiber morphology of the tobacco stems and the physical property of paper pulp is obtained. Showed by results, contents of water-soluble sugar, total plant alkaloid, chlorine and total nitrogen in the tobacco stems are decreased to varying degrees and the holocellulose content is relatively increased by 12.4% after the impregnation and extraction in the technical scheme provided by the invention are adopted; the fiber length of the obtained tobacco stem pulp is longest and the bulk of the finished paper is highest through selecting different types of refining plates and different defibrination gaps; and the tensile index, the tear index, the bulk, the air permeability and the burst index of a paper base product are appropriate and the good quality of reconstituted tobacco is guaranteed through combining the design of the beating degree of the tobacco stem pulp and the technical condition of the sheet making.

The invention relates to a making method of a nickel and iron slag-based forsterite lightweight heat insulation brick. A technical scheme adopted in the invention is characterized in that the method comprises the following steps: adopting 65-75wt% of nickel and iron slag, 10-20wt% of light calcined magnesia fine powder, 5-15wt% of magnesium carbonate fine powder and 5-10wt% of silicon micro-powder as raw materials, adding an additive accounting for 0.5-2.0wt% of the weight of the raw materials, carbon black accounting for 5-15wt% of the weight of the raw materials and a paper pulp waste liquid accounting for 3-9wt% of the weight of the raw materials, uniformly mixing, and carrying out compaction molding; and carrying out heat insulation at 500-700DEG C for 4-8h, sintering at 1300-1550DEG C, and carrying out heat insulation for 2-6h in order to obtain the nickel and iron slag-based forsterite lightweight heat insulation brick. The making method has the advantages of high resource recovery rate, environmental protection and low production cost; and the nickel and iron slag-based forsterite lightweight heat insulation brick made in the invention has the advantages of good volume stability, high pressure strength, low volume density, high micro-porosity and low heat conduction coefficient.

The invention discloses a preparation method of nano-silica reinforced meta-aramid paper. The preparation method comprises the steps of treating meta-aramid chopped fiber by using an aqueous solution of a surfactant, and then, mixing the treated meta-aramid chopped fiber and meta-aramid pulp according to a certain proportion to prepare aramid fiber pulp; then, adding nano-silica subjected to ultrasonic treatment into paper pulp to obtain a mixed suspension liquid; dehydrating the mixed suspension liquid, forming, wetly squeezing the formed product, and drying to obtain raw aramid paper; carrying out hot pressing on the raw aramid paper by using a hot press to obtain the meta-aramid paper. According to the invention, nano-silica is added in the preparation process of the aramid paper, so that the tensile strength and compressive strength of the meta-aramid paper are improved.

The invention discloses an energy-saving and environment-friendly displacement cooking process for wood and bamboo raw materials. The process comprises the following steps of: carrying out (1) pot filling operation, (2) dipping operation, (3) low-temperature stewing operation, (4) high-temperature stewing operation, (5) displacement washing operation and (6) pot dumping operation. Compared with the conventional vertical pot batch cooking process, the process disclosed by the invention has the advantages that the efficiency is improved by 30-40%; the thermal energy of a system is reasonably and circularly utilized, the steam consumption of a ton of pulp is not higher than 0.6 ton; the coarse pulp yield is improved by 1% than any stewing technique, the maximal stewing temperature is lowered by about 6 DEG C, and the steam consumption can be effectively reduced; the pulp is washed in the operation process, the process flexibility is strong, the adaptability of raw materials is good, and the requirement on percent of pass of tablets is low; in a pulp dumping process, no noise is made, and basically no exhaust steam is discharged; the damage on fibers is little, the quality of final pulp is good, and the strength of paper pulp is high under a same kappa number condition; and the low-kappa-number pulp can be obtained, the use level of bleaching medicines is low, and the pollution load is light.

The invention relates to an on-line surface modification method of a papermaking filling material. The invention intends to provide a method for substantially improving the application amount of a cheap papermaking filling material and reducing the application amount of fiber during a papermaking process in order to achieve purposes of paper quality improving and production cost reducing. According to the invention, three components, which are a papermaking filling material water suspension with a concentration of 1 to 30%, a modified starch paste with a concentration of 0.5 to 2%, and a retention aid with a concentration of 0.1 to 0.3% are prepared in advance. With a filling material on-line surface-modifying jetting hybrid apparatus arranged on a paper machine on-mesh pulp delivering pipe, on-line mixing is realized, and the mixture is uniformly distributed in a papermaking pulp pipe, such that on-line surface composite modification upon the papermaking filling material can be carried out with the modified starch and the retention aid.

The invention provides mildew-proof antibacterial food packaging paper which comprises a mildew-proof antibacterial layer on the uppermost side, a waterproof layer below the mildew-proof antibacterial layer, an oil-proof layer below the waterproof layer, and a body paper base layer below the oil-proof layer, wherein the waterproof layer comprises resin, starch and sulfite pulp; the oil-proof layer comprises starch, a plasticizer, a fluorinated compound and chitosan; the mildew-proof antibacterial layer is prepared by mixing pomegranate peel plant oil, Chinese junipers plant oil, garlic plant oil, plant fragrances and ethanol. The food packaging paper comprises the waterproof layer, the oil-proof layer and the mildew-proof antibacterial layer, achieves excellent waterproof, oil-proof, mildew-proof and antibacterial effects, is non-toxic and harmless to a human body, and can guarantee the safety of people in the process of eating foods. Meanwhile, the food packaging paper is simple in process, is made of common materials in life, is low in manufacturing cost and can be widely popularized and used.

The invention discloses a method for preparing bleached pulp by using eucalyptus wood chips, and belongs to the fields of pulping and papermaking. The method comprises the following steps: orderly washing, dewatering and presteaming a eucalyptus wood material, carrying out double helix extrusion, chemical impregnation and high-consistency refining, eliminating, washing and the like. A double helix extruder with a variable pitch and a variable diameter is adopted in extrusion and concentration treatment of the material before defibrination; the damage of the traditional extrusion tearing machine to a fiber is avoided; the quality of the prepared pulp is similar to that of the pulp prepared by qualified chips; the bulk of the pulp can achieve over 3.4 cm<3>/g; the whiteness can achieve over 76% ISO (international standardization organization); effective utilization of the eucalyptus wood chips in the fields of pulping and papermaking is achieved; alkaline hydrogen peroxide which is friendly to the environment is adopted in the craft process; a fewer of pollutants are generated in the pulping process and are non-toxic; instant bleaching and subsequent bleaching reaction are achieved by effectively utilizing the heat energy generated in the pulping process; and steam consumption is reduced.

The invention relates to vacuum type thermal transfer printing body paper and a method for preparing the same. The vacuum type thermal transfer printing body paper is used for printing processing carrier materials of aluminum section bars. The method includes preparing raw materials including 20-5-wt% of softwood pulp, 48-70wt% of hardwood pulp and 0.1-20wt% of talc; performing repulping for the prepared raw materials for 3 to 10 minutes; performing defibrination for the pulp mixture, then feeding the pulp mixture into a machine chest in a beating manner, and then feeding the pulp mixture into a proportioning pond in a beating manner while adding auxiliaries into the proportioning pool to realize proportioning; feeding the proportioned pulp into a pulp regulating pond to be regulated in a beating manner, and sequentially enabling the pulp to enter a papermaking forebay, a paper machine high-level box, a paper machine mesh and a paper machine squeezing portion to obtain a primary printing body paper product; adding auxiliaries into the paper machine high-level box; setting the vacuum degree of the paper machine mesh to range from 0.05MPa to 2.0MPa and the vacuum degree of the paper machine squeezing portion to range from 2.0MPa to 4.0MPa; and drying to obtain a finished product. The vacuum type thermal transfer printing body paper is degradable and is low in cost, fine in body paper performance and convenient to use.

The invention discloses wallpaper base paper capable of adsorbing formaldehyde which is made by using a special process, and wall paper prepared by the wallpaper base paper has a function of adsorbing indoor free formaldehyde. Functional fibers are added into pulp of wallpaper base paper capable of adsorbing formaldehyde, so that the air permeability and the adsorption capability of the paper are improved; formaldehyde adsorbent and calcined diatomaceous earth are added into a coating solution so that an adsorption effect is improved. The base paper provided by the invention can further comprise a thin additional coating having a formaldehyde adsorption function with strong directivity; the wallpaper base paper adhered with the coating is suitable for being used in places in which a large amount of formaldehyde needs to be removed. The invention aims to protect the wallpaper base paper capable of adsorbing formaldehyde, and the wallpaper base paper capable of adsorbing formaldehyde is prepared from the following raw materials in percentage by weight: 30-80 percent of wood pulp, 15-60 percent of a functional fiber, and 5-10 percent of an auxiliary.

The invention discloses candy wrapping body paper which is prepared from the following raw materials in percentage by weight: 80 percent of imported bleached leaf wood pulp, 10 percent of imported bleached hardwood pulp, 10 percent of domestic high-grade cotton pulp and aids. The invention also discloses a method for preparing the candy wrapping body paper. The imported bleached leaf wood pulp, the bleached hardwood pulp and the cotton pulp serve as main raw materials, and a proper amount of carboxymethylcellulose is added during pulping, so that the tearing index, tensile index and twist strength of the finished paper are improved. Therefore, the damage rate of the candy wrapping paper is lower than 0.1 percent and is far lower than 0.5 percent required in the standard when the candy wrapping paper is used for wrapping candies by a high-speed mechanical automatic wrapping machine.

The invention discloses ceramic fiber paper. The ceramic fiber paper comprises the following components in percentage by weight: 20-40% of ceramic fibers, 20-30% of graphite fibers, 20-40% of paper pulp, 10-12% of a sizing agent and 5-7% of additives. Compared with the prior art, the ceramic fiber paper is higher in flame retardant property, abrasive resistance, insulation property and heat insulation property, longer in service life in the actual production and better in effect.

The invention provides a paper filter material containing polyester fibers for a cigarette filter tip and a preparation method thereof. The paper filter material comprises 10-90% of polyester fibers and the balance of wood pulp fibers or non-wood pulp fibers and also comprises a functional additive accounting for 0.1-5wt% of the polyester fibers and a coating material accounting for 0.1-5wt% of the paper filter material, wherein the polyester fibers are polyethylene terephthalate fibers or polylactic acid fibers or poly(beta-hydroxybutyrate) (beta-PHB) fibers or poly(butylenesuccinate) fibers; the wood pulp fibers are neddle wood pulp fibers or/and hardwood pulp fibers; the functional additive is water-soluble polymer material or polypeptide, and the polypeptide is plant polypeptide or animal polypeptide. The preparation method comprises the following steps: adding the functional additive into the polyester fibers, and jordaning to obtain a polyester fiber slurry; then respectively blending the polyester fiber slurry with the respectively prepared non-wood pulp fiber slurry or wood pulp fiber slurry in a blending tank; utilizing a paper making machine to make paper with pulp and shape, dehydrating and performing primary drying to obtain dry paper; coating the coating material accounting for 0.1-5wt% of the dry paper onto the surface of the paper; and performing secondary drying, thus obtaining the paper filter material provided by the invention. According to the invention, the range of available fiber raw materials for making the paper filter material is enlarged, the paper performance is improved, and the influence of the paper filter material on the smoking quality of cigarettes can be reduced.

The invention discloses a method for preparing tobacco sheet paper base from tobacco stems as raw materials by adopting the paper making process. The method comprises the following steps: impregnating, pulping and making sheets. The invention changes the traditional technological prejudice and custom of controlling the pulping by controlling the current of a pulping machine and innovatively realizes the pulping by controlling the pulping disc, the pulping gaps, the pulping segments and the pulping concentration. The condition of the pulping process is optimized systematically, two or three segments of pulping are adopted, the pulping concentration is controlled at 20%, and the pulping gaps for the first and second segments of pulping are respectively 0.4mm and 0.20mm. Through studying and analyzing the relation between the pulping process and the performance of the tobacco stem fiber integrally, the controllable optimum pulping condition is summarized, the longest fiber of the tobacco stem pulp, the highest bulk of the formed paper and the good quality of the reconstituted tobacco are guaranteed, the performance of the tobacco sheet paper base is improved comprehensively, and finally the technological basis is provided for improving the quality of the tobacco sheets and the cigarettes.

The invention discloses a preparation method for a chitosan fruit moistureproof freshness protection package, which comprises the following steps; firstly, performing pulping, beating, refining, preparing and size mixing on wood pulp and/or straw pulp and manufacturing with pulp to obtain paper through a paper machine; secondly, preparing waterproof emulsion; thirdly, coating the waterproof emulsion on the surface of wood pulp paper and obtaining fruit bagging paper with a waterproof layer through baking processing; fourthly, spraying a chitosan liquid on the inner surface of the fruit bagging paper with the waterproof layer and drying to obtain the paper; and fifthly, cutting the paper into an appropriate size and manufacturing to obtain a paper package. According to the invention, the manufactured product has the advantages of collision resistance, moisture protection, bacterium resistance and freshness retaining, overcomes the defects that the chitosan has poor water-solubility, is difficult in production operation, influences the flavor of fruits and vegetables and is difficult to dry, and is suitable for application to various fruits.

The invention discloses a boron mud/loess ceramsite concrete hollow insulation block and a preparation method thereof. The block is prepared from the following raw materials by weight: 125 to 145 parts of ordinary Portland cement grade 42.5, 540 to 580 parts of stone chippings, 28 to 32 parts of boron mud, 12 to 16 parts of loess, 8 to 12 parts of paper pulp waste liquid, 3 to 5 parts of straw ash, 4 to 6 parts of light calcium carbonate, 20 to 30 parts of soluble glass, 8 to 12 parts of straw powder, 3 to 4 parts of a foaming agent, 1 to 1.5 parts of foots, 2 to 3 parts of an asbestos fiber, 0.6 to 1.2 parts of a redispersible latex powder and 160 to 210 parts of water. The boron mud/loess ceramsite concrete hollow insulation block produced in the invention has the advantages of high strength, low density, good heat insulation performance, good impact resistance, small possibility of water absorption, fire resistance, flame retardation, good weatherability, environment-friendliness, energy conservation and the like and has great market space and development prospects in the application field of building energy conservation in China.

The invention discloses a method for preparing a paper making wet end chemical addition agent by using cassava residue as a raw material; the method comprises the following steps: the cassava residue is beaten and then is washed and dispersed by clean water; after suspended cassava barks and crude fibers are removed, sedimental cassava residues and fine fibers are dehydrated for standby application, are mixed with the crude fibers obtained through winnowing and separation of the removed cassava barks and the crude fibers and are diluted into slag pulp; then the slag pulp is jointly processed by sodium hypochlorite and hydrogen peroxide; the processed slag pulp is ball-milled into powder; a modified liquid reagent is used for carrying out chemical modification on the powder, a modified synthesis mixture is washed and filtrated by an organic solvent and finally filter cakes are dried and powdered so as to obtain the modified cassava residue product. In the method, the process is simple, devices are matured, and simultaneously as a multiple-effect paper making wet end chemical addition agent, the prepared modified cassava residue product is used for reinforcing paper pulp and helping retention and filtration, has higher economic value and provides a positive approach for effectively solving environmental pollution caused by the abandon of cassava residues.

The preparation method of the bouquet type non-combustible reconstituted tobacco for the heating non-combustible cigarette comprises the following steps: respectively extracting a tobacco stem raw material and a leaf powder raw material, and carrying out solid-liquid separation after extraction to obtain tobacco stem residues and a tobacco stem extracting solution as well as leaf powder residues and a leaf powder extracting solution; mixing and grinding the tobacco stem residues and the leaf powder residues into pulp, and obtaining tobacco mixed pulp; respectively carrying out vacuum concentration on the tobacco stem extracting solution and the leaf powder extracting solution to obtain stem paste and leaf paste, and mixing the stem paste and the leaf paste to obtain a tobacco extract; mixing the tobacco mixed pulp, wood pulp fibers, a solid-phase wine aroma type substance and a filler to prepare pulp, adding an auxiliary agent, and making paper into a substrate by adopting a papermaking process; mixing and blending the tobacco extract, the atomizing agent and the essence to obtain coating liquid, coating the coating liquid on the sheet base, and drying to obtain the bouquet type non-combustible reconstituted tobacco. The reconstituted tobacco prepared by the method has unique wine fragrance and good bulk, and is particularly suitable for making low-temperature heating non-combustible cigarette products.

The invention discloses zirconium oxide-loaded silicone air filtration paper and a preparation method thereof. The air filtration paper comprises the following raw materials in part by weight: 70 to 80 parts of wood pulp, 20 to 30 parts of jute pulp, 10 to 20 parts of ceramic fiber, 2 to 5 parts of modified silicone, 1 to 3 parts of nano calcium carbonate, 2 to 4 parts of activated carbon, 1 to 2 parts of nano aluminium oxide, 0.5 to 0.8 part of ammonium polyphosphate, 2 to 3 parts of acrylic latex, 1 to 2 parts of polyethylene glycol, 0.5 to 1 part of tricresyl phosphate, 0.5 to 1 part of anilmomethyl triethoxy silane, 0.4 to 0.8 part of sodium lauryl sulfate and 2 to 5 parts of modified polyethyleneimine. The prepared filtration paper has the advantages of high water permeability, filtration accuracy, bursting strength and tensile strength, large filtration area, high temperature resistance and the like, the maximum aperture is small, and the filtration efficiency reaches 99.98 percent; and the filtration paper has a stable performance index under the working conditions of normal temperature and high temperature and has relatively good heat resistance and filtration effects.

The invention discloses a corundum-mullite composite brick for a COREX furnace and a preparation method thereof. The raw materials of the corundum-mullite composite brick are composed of a corundum-mullite homogenized material, white corundum, andalusite, a-Al2O3 powder and binding clay, as well as paper pulp liquid waste. The preparation method comprises the steps of firstly, preparing raw materials with various particle sizes according to the ratio; then, using raw materials with particle sizes of 1-3mm and particle sizes smaller than 1mm as aggregate to perform dry mixing, adding a paper pulp liquid waste mixture, finally adding the residual raw materials, and milling to obtain a pug; sequentially performing material trapping, press forming and drying on the obtained pug, and finally roasting to obtain a product. The corundum-mullite composite brick produced in the invention has very low porosity, high compression strength and excellent thermal shock resistance and corrosion resistance, can completely satisfy the harsh application environment of the COREX furnace, and can prolong the service life.

The invention discloses a salix psammophila bleached chemi-mechanical pulp technology. According to the technology, (1) salix psammophila is cut into even material sections, the materials are conveyed to a dual-drum material washing machine for removing impurities, the materials are dehydrated and spirally conveyed to a steaming bin to be subjected to sufficient dipping, and then the materials are conveyed to a dual-screw thread rolling machine; (2) the materials are then conveyed to a high-consistency reaction bin for standing after thread rolling is carried out in the first section of thread rolling machine; (3) pulp materials passing through the first section of reaction bin is washed and dehydrated through a section of press master, a second section of rolling, grinding and filament separating is carried out, and the materials are conveyed to the high-consistency reaction bin for standing after thread rolling; (4) high consistency refining is carried out after the pulp materials after standing pass through two sections of press masters; (5) after high-speed latency eliminating is carried out on grinded coarse pulp through a hydrapulper, deslagging, fine grinding, screening and concentration are carried out, and then the materials are conveyed to a pulp distribution chest and then to a papermaking workshop. According to the salix psammophila bleached chemi-mechanical pulp technology, the characteristics of salix psammophila are utilized, the technology is simple and easy to operate, large complex equipment is not needed, the technology is more environmentally friendly compared with an existing technology, the performance is high, and the cost is low.