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100results about "Ignifugeants addition" patented technology

Thermal insulating / flame barrier sheet and battery pack and battery module package using the same

The present invention provides a lightweight and thin thermal insulating / flame barrier sheet that is used between cells within a battery pack where battery cells are connected and stacked in series or parallel. This thermal insulating / flame barrier sheet has a thickness of 3 mm or less, and is obtained by papermaking process using a suspension containing 25 to 70% by weight of a silica-based inorganic fiber having a hydroxyl group; 2 to 25% by weight of a glass fiber; 5 to 40% by weight of a fibrous mineral; 3 to 20% by weight of a binder; and 0 to 45% by weight of a thermal insulating inorganic particle. The thermal insulating inorganic particle includes a hydrophilized aerogel particle obtained by treating the surfaces of hydrophobic aerogel particle having a porosity of 80% or more and an average particle size of 5 to 200 μm, with a hydrophilizing agent.
Owner:IMAE KOUGIYOU KK

Corrugated high-flame-retardant heat-conducting ceramic fiber paper and preparation method thereof

The invention discloses corrugated high-flame-retardant heat-conducting ceramic fiber paper and a preparation method thereof, and relates to the technical field of ceramic fiber paper.The preparation method comprises the following steps that 1, raw materials are prepared through a wet method; 2, preparing ceramic fiber paper; 3, forming a corrugated structure; 4, sintering and heat conduction treatment; 5, post-treatment; the corrugated structure is formed by the following steps: 1, dipping; 2, drying; and 3, forming the corrugated structure. The epoxy resin impregnation liquid is used for impregnating the fiber paper, and can effectively permeate into the ceramic fiber paper to be combined with the fiber surface to form a firm three-dimensional network structure in the impregnation process, so that the bonding force between fibers and the overall strength of the paperboard are remarkably improved; the ceramic fiber paper is immersed in a suspension composed of silica sol and high-thermal-conductivity inorganic filler aluminum oxide in the final preparation stage, so that the fiber paper has good stability and low flammability at high temperature, the forming quality of the corrugated structure is improved, and the flame-retardant and heat-insulating performance of the material is further improved.
Owner:NANTONG YUANSHUN REFRACTORY FIBRE CO LTD

Aerosol generation product with low ignition propensity

To provide an aerosol generation product with low ignition propensity.SOLUTION: An aerosol generation product with low ignition propensity is provided. An aerosol generation product 300 according to several embodiments of the present disclosure is used together with an aerosol generation device, and can comprise an aerosol formation substrate part 310, a filter part 320 and a wrapper 330, which is made of a flame retardant paper material and encompasses at least a part of the aerosol formation substrate part. The flame retardant paper material reduces the possibility of wrapper ignition caused by an abnormally high temperature during smoking, and thus can improve smoking safety of a user, and reduces the possibility of aerosol generation product ignition caused by lighting by the user, and thus can prevent the user from experiencing unintentional smoking.SELECTED DRAWING: Figure 1
Owner:KT&G CO LTD

High-temperature-resistant masking paper and preparation process thereof

The invention provides high-temperature-resistant textured paper and a preparation process thereof, and belongs to the technical field of textured paper. The preparation process comprises the following steps: preparing the raw paper; preparing a gum dipping solution; and impregnating the raw paper. The preparation method comprises the following steps: by taking p-vinylbenzoic acid and 2-vinylpyridine as functional monomers, mixing the p-vinylbenzoic acid and 2-vinylpyridine with styrene, butadiene and tert-dodecanethiol, adding the mixture into an emulsifier solution, emulsifying to prepare a pre-emulsion, then carrying out copolymerization under the initiation of potassium persulfate to prepare modified styrene-butadiene latex, and introducing carboxyl to form a strong hydrogen bond, so as to obtain the modified styrene-butadiene latex. According to the modified styrene-butadiene latex, the action force between molecular chains is remarkably enhanced, polar nitrogen atoms of pyridine rings and polar groups in adjacent molecular chains can form dipole interaction, the binding force between molecules is enhanced, and then the thermal stability of the styrene-butadiene latex is improved. The high temperature resistance of the prepared masking paper can be effectively improved.
Owner:ZHEJIANG SMITH SPECIAL PAPER CO LTD

Aerosol-generating article comprising a flame-retardant

There is provided an aerosol-generating article (10; 110) for producing an inhalable aerosol upon heating. The aerosol-generating article (10; 110) comprises a rod (12) of aerosol-generating substrate, the aerosol-generating substrate comprising at least an aerosol-former, wherein the aerosol-generating substrate has an aerosol former content of at least about 10 percent on a dry weight basis. The aerosol-generating article (10; 110) also comprises a downstream section (14, 114) at a location downstream of the rod (12) of aerosol-generating substrate, and a wrapper (70) circumscribing at least the rod of aerosol-generating substrate. The wrapper (70) comprises a flame retardant composition comprising one or more flame retardant compounds.
Owner:PHILIP MORRIS PRODUCTS SA

Aerosol-generating article comprising a flame-retardant

There is provided an aerosol-generating article (10; 110) for producing an inhalable aerosol upon heating. The aerosol-generating article (10; 110) comprises a rod (12) of aerosol-generating substrate, the aerosol-generating substrate comprising at least an aerosol-former, wherein the aerosol-generating substrate has an aerosol former content of at least about 10 percent on a dry weight basis. The aerosol-generating article (10; 110) also comprises a downstream section (14, 114) at a location downstream of the rod (12) of aerosol-generating substrate, and a wrapper (70) circumscribing at least the rod of aerosol-generating substrate. The wrapper (70) comprises a flame retardant composition comprising one or more flame retardant compounds.
Owner:PHILIP MORRIS PRODUCTS SA

Hybrid fire retardant insulation and method of making the same

A hybrid insulation product and related method for making the insulation product. The insulation product includes one or more feedstock components that may include one or more cellulosic feedstock components, wherein a first portion of the one or more feedstock components is treated with wet fire retardancy material, and a second portion of the one or more feedstock components is treated with dry fire retardancy material. The one or more feedstock components may include in addition to one or more cellulose feedstocks, one or more agricultural fiber sources.
Owner:CLEANFIBER INC

Gas stove battery pulp layer paper and preparation method thereof

The invention discloses gas stove battery coated paper and a preparation method thereof, and relates to the technical field of coated paper. When the gas stove battery pulp layer paper is prepared, a double H-pyrazole methylamine ligand and 1-vinyl-1, 1, 3, 3-tetramethyldisiloxane are subjected to graft copolymerization on starch, and modified starch is prepared; the preparation method comprises the following steps: carrying out reaction on polyvinyl alcohol and 3-butylene phosphonic acid monomethyl ester to prepare modified polyvinyl alcohol; the triaryl s-triazine microspheres and 3-sulfydryl-N, N, N-trimethylpropane-1-ammonium chloride are subjected to a reaction, and functional triaryl s-triazine microspheres are prepared; preparing composite slurry from modified polyvinyl alcohol, modified starch, polyacrylamide, functional triaryl-s-triazine microspheres and chloroplatinic acid; and coating base paper with the composite slurry, drying, slitting and rewinding to obtain the gas stove battery slurry layer paper. The prepared gas stove battery pulp layer paper has excellent high temperature resistance, leakage prevention, flame retardance and mechanical strength.
Owner:LIAOYUAN JINYU JOURNEY DIAPHRAGM CO LTD +1

Multifunctional composite kraft paper and preparation device

The invention discloses multifunctional composite kraft paper and a preparation device, and the multifunctional kraft paper comprises a base material layer which is used as a supporting main body; the aromatic layer is fixed on one surface of the base material layer in a coating manner, fine and dense micropores are distributed in the base material layer in a staggered manner, and the aromatic layer permeates into the micropores and forms mechanical interlocking with the base material layer; the flame-retardant layer is positioned on one surface, deviating from the aromatic layer, of the base material layer and is fixedly connected with the base material layer in a thermocompression bonding fixing manner; the anti-static layer is located on the side, away from the base material layer, of the flame-retardant layer and is fixedly connected with the flame-retardant layer in a bonding mode, various layer structures are matched with one another, the function of kraft paper can be increased, and the connection strength between different functional layers is improved by adding an interlocking structure.
Owner:YAN TAI SHI DA ZHAN ZHI YE YOU XIAN GONG SI

Preparation method of antistatic flame-retardant facing artificial board

The invention relates to the technical field of facing artificial boards, in particular to a preparation method of an antistatic flame-retardant facing artificial board, which comprises a decorative paper preparation process, a base material preparation process and a compounding process, and the decorative paper preparation process sequentially comprises the following steps: step 1, obtaining a first raw material and a second raw material; secondly, the first raw material is treated in a blow molding mode, when the first raw material is subjected to blow molding to form a tubular hollow adhesive film and has the temperature of 110-120 DEG C, the second raw material with the temperature of 80-90 DEG C is provided for the outer side film face of the hollow adhesive film, and therefore the hollow decorative paper film is obtained; thirdly, the blow-molded hollow decorative paper film is led and taken; wherein the first raw material comprises a mixed adhesive added with a flame retardant, an initiator and a grafting monomer, and the second raw material comprises paper pulp added with an antistatic agent.
Owner:ZHEJIANG SHIYOU TIMBER

Heat insulation and flame shielding sheet, assembled battery using the same, and battery module package

To provide a lightweight, thin heat insulating and fireproof that is used by being interposed between cells of a battery pack in which battery cells are connected in series or parallel and stacked.SOLUTION: A heat insulating and fireproof sheet contains 25 to 70 weight% of silica-based inorganic fibers having hydroxyl groups, 2 to 25 weight% of glass fibers, 5 to 40 weight% of fibrous minerals, and 3 to 20 weight% of binder, and has a thickness of 3 mm or less, in which the weight ratio of the silica-based inorganic fibers to the glass fibers is 30 / 1 to 1.5 / 1, and may further contain inorganic particles that exhibit heat insulating properties.SELECTED DRAWING: Figure 7
Owner:IMAE KOUGIYOU KK

Flame-retardant kraft linerboard and surface treatment process thereof

The invention relates to the technical field of kraft linerboards, in particular to a flame-retardant kraft linerboard and a surface treatment process thereof. An upper transition layer is arranged below the upper surface layer, a core layer located on a middle base layer of the kraft linerboard is arranged below the upper transition layer, a flame-retardant layer for inhibiting combustion reaction and reducing flame propagation speed through a flame retardant is arranged in the core layer, and a lower transition layer is arranged below the core layer. A lower-layer surface layer which is symmetrical with the upper-layer surface layer and is positioned on the outermost layer of the bottom of the kraft linerboard is arranged below the According to the flame-retardant kraft linerboard, a layered composite structure is adopted, the upper transition layer and the lower transition layer are additionally arranged, the binding force between the layers is enhanced, the layering phenomenon is effectively avoided, the overall strength and durability of the kraft linerboard are greatly improved, the flame-retardant layer adopts a multi-layer composite structure and gradient flame-retardant design, and the flame-retardant efficiency is improved; according to the process, the flatness, glossiness and printing stability of the paperboard are ensured, the quality of a finished product is stable, the defective rate is reduced, and the production efficiency and economic benefits are improved.
Owner:江门市明星纸业有限公司

Flame-retardant mildew-proof wallpaper and preparation method thereof

The invention relates to the technical field of wallpaper preparation, and discloses flame-retardant mildew-proof wallpaper and a preparation method thereof. The preparation method of the flame-retardant and mildew-proof wallpaper comprises the following steps: reacting isocyanate propyl triethoxy silane with 4-aminoazobenzene to obtain a modified coupling agent; the preparation method comprises the following steps: preparing mesoporous starch-based nanospheres by taking short-chain glucose and chitosan as raw materials; the preparation method comprises the following steps: treating mesoporous starch-based nanospheres through a modified coupling agent, and loading vanillin to obtain loaded modified nanospheres; the preparation method comprises the following steps: preparing aerogel particles by taking g-C3N4 powder, gamma-glycidyl ether oxypropyl trimethoxy silane and bacterial cellulose as raw materials; reacting the loaded modified nanospheres with aerogel particles to obtain modified aerogel particles; forming an ink layer on one side of the flame-retardant base layer through a printing process to obtain a wallpaper semi-finished product; and coating the semi-finished wallpaper product with the mildew-proof layer slurry to obtain the flame-retardant mildew-proof wallpaper. The flame-retardant and mildew-proof wallpaper disclosed by the invention has the properties of flame retardance, bacteriostasis, mildew prevention and air purification, and can emit fragrance for a long time.
Owner:ANHUI RONGCHANG NEW MATERIAL TECH CO LTD

Polypropylene coated paper and paperboard

The present invention relates to paper or paperboard comprising cellulose fibers, said paper or paperboard comprising at least one coating layer formed by extrusion coating of a PP (polypropylene) resin, characterized in that the PP resin comprises at least 50% by weight of a branched PP copolymer having a density in the range of 890-910 kg / m3 (as determined according to ISO 1183), a melting temperature in the range of 155-170° C. (as determined according to ISO 11357-3), and a melt flow rate (230° C. / 2.16 kg) in the range of 10-15 g / 10 min (as determined according to ISO 1133), and wherein the PP resin is applied to the paper or paperboard at a grammage of less than 30 g / m2.
Owner:STORA ENSO OYJ

Flame-retardant cardboard and its manufacturing method

ActiveJP7719635B2Flexible coversWrappers
To provide a low-cost and highly flame-retardant liner and flame-retardant corrugated cardboard, wherein the liner, compared to conventional liners, is resistant to permeation of a flame retardant and allows a flame-retardant layer to be formed on its surface with a small amount of coating in the technique of applying the flame retardant by coating.SOLUTION: A flame-retardant corrugated cardboard 21 is manufactured which comprises, as a liner 15, flame-retardant paper including a paper layer 11, a flame-retardant layer 12 containing a flame retardant and a polymer having a molecular weight of 8,000 to 10,000,000 inclusive, and an overcoat layer 13 that protects the flame-retardant layer 12, wherein the overcoat layer 13 is disposed on the upper-surface side with respect to the flame-retardant layer 12.SELECTED DRAWING: Figure 1
Owner:RENGO CO LTD

Multifunctional decorative paper and preparation method thereof

The present invention is applicable to the technical field of decorative paper and provides a multifunctional decorative paper and a preparation method thereof. The raw materials of the multifunctional decorative paper include base paper and an impregnating material. The impregnating material includes the following raw materials: vinyl ester resin, water-based polyurethane, filler, flame retardant, modified lignin, heat stabilizer, modified polyvinyl alcohol, anti-ultraviolet agent, and antibacterial agent. The multifunctional decorative paper provided by the present invention is impregnated with the impregnating material, and modified lignin is added to the impregnating material to improve the hydrophobicity of the material and form a waterproof film layer on the surface of the decorative paper. By adding modified polyvinyl alcohol, the multifunctional decorative paper has good hydrophobic ability and forms a cross-linked dense mesh hydrophobic film with good waterproof effect, which prevents the decorative paper from water ingress and moisture. By adding fillers, the wear resistance and mechanical properties are improved. By adding flame retardants, anti-ultraviolet agents, and antibacterial agents, the decorative paper has flame retardant, sun protection, anti-aging, and antibacterial functions.
Owner:HANGZHOU ABLE DECORATIVE MATERIALS CO LTD

Biodegradable high-barrier-property PGA coated paper as well as preparation method and application thereof

The invention discloses biodegradable high-barrier-property PGA coated paper as well as a preparation method and application thereof, and belongs to the technical field of coated paper. The invention aims to solve the technical problem that in the prior art, a PGA molecular chain processing window is narrow in temperature and unstable at high temperature, so that the service life of the prepared PGA coated paper is shortened. The preparation method of the biodegradable high-barrier-property PGA coated paper comprises the following steps: S1, adding modified polyglycolic acid, a polyurethane elastomer and an initiator into an internal mixer for internal mixing to obtain a polymer; and cooling the polymer to obtain the prepared lamination layer material. S2, coated paper is used as a base material, PLA is used as a bonding layer material to coat the surface of the base material, then a lamination layer material is laminated, and the biodegradable high-barrier-property PGA lamination paper is prepared through pressing of a hot pressing roller. The PGA coated paper prepared by the invention has the advantages of excellent thermal stability and mechanical properties and good biodegradability.
Owner:FUNAN SHUNCHANG PLASTICS CO LTD

Bio-based flame-retardant air filter paper and preparation method thereof

The invention relates to the technical field of air filtration, in particular to bio-based flame-retardant air filter paper and a preparation method thereof. The bio-based flame-retardant air filter paper comprises: base paper; the flame-retardant adhesive layer is compounded on the surface of the base paper; the base paper is prepared from raw materials including poly (p-phenylene benzobisoxazole) fibers, broadleaf wood fibers and coniferous wood fibers; the flame-retardant adhesive layer is prepared from a flame-retardant adhesive solution; the flame-retardant glue solution comprises styrene-butadiene latex, a flame retardant, carboxymethyl cellulose, a lubricant, potassium zirconium carbonate and water; the flame retardant is prepared from raw materials including a phytic acid solution and anhydrous calcium chloride. According to the flame-retardant adhesive layer provided by the invention, specific flame retardants phytic acid and anhydrous calcium chloride are adopted and matched with other specific components, so that good interaction can be realized, the flame retardance of the flame-retardant adhesive layer can be effectively improved, and the obtained filter paper is relatively large in dust holding capacity, relatively excellent in filtering performance and bursting resistance and relatively long in service life; no halogen hydride gas is generated during combustion, so that the environment-friendly effect is achieved.
Owner:SHANDONG LONGDE COMPOSITE FIBER TECH CO LTD

Packaging for aerosol-generating consumables and method of manufacturing same

The present invention relates to a packaging material (1) and an article (110) comprising such a packaging material (1) for use in a non-combustion aerosol delivery system. The packaging material (1) has a smooth surface (3) and a rough surface (2). The present invention further relates to methods for producing the packaging material (1) and the article (110), as well as uses of the packaging material (1).
Owner:NICOVENTURES TRADING LTD

Low-flammability aerosol-generating items

An aerosol-generating article with low ignition properties is provided, and the aerosol-generating article according to some embodiments of the present disclosure is for use with an aerosol generating device and includes an aerosol-forming substrate portion, a filter portion, and a wrapper made of a flame-retardant paper material covering at least a portion of the aerosol-forming substrate portion, and the flame-retardant paper material can improve smoking safety for the user by reducing the possibility of the wrapper igniting due to abnormally high temperatures during smoking, and can also prevent the user from having an unintended smoking experience by reducing the possibility of the aerosol-generating article igniting due to the user's act of ignition.
Owner:KT&G CO LTD

Environment-friendly carton and preparation equipment thereof

The invention discloses an environment-friendly carton and preparation equipment thereof, the environment-friendly carton comprises a carton body formed by cutting and folding a paperboard, the carton body comprises an outer paperboard layer, a middle corrugated layer and an inner paperboard layer, and the surface of the outer paperboard layer and the surface of the inner paperboard layer are both coated with damp-proof flame-retardant composite coatings; the moisture-proof flame-retardant composite coating is composed of a water-based acrylic resin layer, a nano silicon dioxide layer and an intumescent flame-retardant layer. The water-based acrylic resin is an environment-friendly high polymer material, takes water as a dispersion medium, has the characteristics of low VOC (volatile organic compound), no toxicity, nonflammability and the like, and can improve the strength and waterproofness of paper in paper treatment; the nano silicon dioxide can improve the moisture resistance of the paperboard; and the intumescent flame retardant can form a heat-insulating and oxygen-isolating carbon layer through thermal expansion to prevent combustion, so that the flame retardant property of the paper is improved.
Owner:HANGZHOU KEMAI PRINTING CO LTD

Separation device and sheet manufacturing device

To provide a separation device and a sheet manufacturing apparatus which are excellent in collection efficiency of a defibrated material, while achieving low power consumption and preventing an increase in size of the device.SOLUTION: A separation device includes: a defibrating section for defibrating a material containing a fiber; and a separation section including a rotating member which is at least partly formed of a mesh, a first ejection section which ejects a defibrated material produced in the defibrating section onto a first surface, a first suction section which sucks the defibrated material through the mesh to remove foreign matter, a second ejection section which has a second ejection port for ejecting air toward the defibrated material from which the foreign matter on the first surface has been removed, and a second suction section which sucks and collects the defibrated material peeled off from the mesh by the air ejected from the second ejection port. The second ejection section includes a nozzle having: a first portion in which a cross-sectional area of a lumen decreases toward the second ejection port; and a second portion which is provided on an opposite side to the second ejection port of the first portion, and in which the cross-sectional area of the lumen is larger than an opening area of the second ejection port and is constant along a tube axis.SELECTED DRAWING: Figure 4
Owner:SEIKO EPSON CORP

Preparation method and application of phosphorus-containing hyperbranched polysiloxane modified impregnated paper

The invention discloses a preparation method and application of phosphorus-containing hyperbranched polysiloxane modified impregnated paper, and the preparation method specifically comprises the following steps: step 1, dissolving phosphorus oxide and siloxane in a solvent, then fully stirring at 60-90 DEG C, and drying to obtain hyperbranched polysiloxane; 2, mixing the hyperbranched polysiloxane with a nano material, absolute ethyl alcohol and deionized water, heating in a water bath at 40-90 DEG C, fully stirring for 3-7 hours, performing vacuum filtration, cleaning and drying to constant weight to obtain phosphorus-containing hyperbranched polysiloxane; step 3, mixing the melamino-formaldehyde resin with the phosphorus-containing hyperbranched polysiloxane to obtain modified melamino-formaldehyde resin; and 4, immersing the raw paper of the impregnated paper into the modified melamine formaldehyde resin, and drying in a drying oven at 100-150 DEG C for 1-5 minutes to obtain the phosphorus-containing hyperbranched polysiloxane modified impregnated paper. The phosphorus-containing hyperbranched polysiloxane modified impregnated paper prepared by the invention has the advantages of good toughness, high strength and strong flame retardance.
Owner:ZHEJIANG FORESTRY UNIVERSITY

Ceramic fiber paper and preparation method thereof

The invention discloses a ceramic fiber paper, wherein the raw materials of the ceramic fiber paper include Si-O tetracoordinated orthosilicate, fluorine-substituted silicate, vermiculite, aluminum silicate fiber, fluorine-substituted polyolefin, phosphorus-nitrogen flame retardant, and nylon, and the mass ratio of the total mass of the Si-O tetracoordinated orthosilicate, fluorine-substituted silicate, vermiculite, aluminum silicate fiber, fluorine-substituted polyolefin, phosphorus-nitrogen flame retardant, and nylon in the raw materials is 70%-80%. The ceramic fiber paper obtained by the method of the invention has the characteristics of low thermal conductivity and high temperature resistance, the product has a wide range of applications, a simple production process, and excellent thermal insulation performance.
Owner:IBIH ADVANCED MATERIALS CO LTD

Antibacterial formaldehyde-free impregnating adhesive and preparation process thereof

The invention discloses an antibacterial formaldehyde-free impregnating adhesive and a preparation process thereof, and belongs to the technical field of impregnating adhesives. The antibacterial formaldehyde-free impregnating adhesive comprises the following raw materials in parts by weight: 45-70 parts of a waterborne polyurethane dispersion, 0.5-1 part of a defoaming agent, 2-3 parts of a wetting agent, 1-1.5 parts of a thickening agent, 2-5 parts of an antibacterial agent, 5-8 parts of a flame retardant and 30-50 parts of deionized water. The antibacterial agent is prepared by the following steps: reacting diethanol amine with 1-chlorotridecane to generate a tertiary amine compound, reacting with 1, 2-bis (2-chloroethoxy) ethane to generate a quaternary ammonium salt compound, reacting with 5-chloro-1-pentyne to generate an alkynyl compound, and finally reacting with azidonicotinic acid formyl. The antibacterial formaldehyde-free impregnating adhesive prepared by the invention has excellent antibacterial property and flame retardant property, does not release formaldehyde, and meets the requirements of environmental protection, safety and high performance.
Owner:SHUYANG DONGYU HONGXIANG TONGDA DECORATION MATERIALS CO LTD

A porous polymer flame retardant and a preparation method and application thereof

The application discloses a kind of porous polymer flame retardant and its preparation method and application.The porous polymer flame retardant has the structure as shown in formula (I):The porous polymer flame retardant prepared in the application is novel in structure, the phosphorus content is 35.3wt%, the nitrogen content is 15.9wt%, the boron content is 12.3wt%, the total content of flame-retardant element is as high as 63.5wt%, and the stability is high.The preparation method provided in the application is simple, low in cost, suitable for large-scale production, and the porous polymer flame retardant prepared in the application has good application prospect in water-based flame-retardant coating and flame-retardant paper.
Owner:NANJING TECH UNIV +1

Moisture-proof flame-retardant paper and carton

The invention relates to the technical field of paper manufacturing, and provides moisture-proof flame-retardant paper and cartons, the paper is prepared by the following method: S1, raw paper is soaked in a flame-retardant solution, and a flame retardant of the flame-retardant solution comprises the following raw materials in parts by weight: 5-7 parts of ammonium polyphosphate and 4 parts of ammonium dihydrogen phosphate; s2, drying the paper impregnated in the step S1 until the water content is 6.0-8.5%; s3, damp-proof sizing liquid is applied to the surface of the paper dried in the step S2, and the sizing amount is 8-12%; and S4, drying the paper impregnated in the step S3 for 5-10 minutes at the temperature of 85-95 DEG C in the first stage, and drying the paper for 10-20 minutes at the temperature of 105-120 DEG C in the second stage. The defects in the prior art are overcome, precipitation of ammonium polyphosphate in the paper can be effectively reduced, the reliability of overall flame retardance inside and outside the paper is ensured, and reliable combination of subsequent damp-proof sizing liquid and the surface of the paper is ensured.
Owner:WUXI ZITANGXING SPECIAL MATERIALS CO LTD

Aerosol-generating items

The present invention relates to a wrapper paper suitable for use in an aerosol-generating article, the wrapper paper comprising pulp fibers and a char-forming agent, wherein the pulp fibers constitute at least 70% and at most 95% by weight of the wrapper paper, and the char-forming agent is present in a concentration of at least 5% and at most 20% by weight of the wrapper paper, and the wrapper paper has a tensile strength R0 measured in accordance with ISO 1924-2:2008 under the conditions of ISO 187:1990 and a tensile strength R1 measured in accordance with ISO 1924-2:2008 under the conditions of ISO 187:1990 after being exposed to a temperature of 230°C for 1 minute. T The quotient r=R T / R0 is present in the wrapper paper in a concentration such that it is at least 0.20 and at most 0.90.
Owner:DELFORTGROUP