273results about "Surface covering paper" patented technology

The invention relates to the technical field of papermaking, and particularly provides label release paper and a preparation method thereof.The label release paper sequentially comprises a release layer, a bottom coating layer and a base material paper layer from top to bottom, and the release layer comprises polydimethylsiloxane; the bottom coating layer comprises an organic silane coupling agent; the base material paper layer sequentially comprises a surface layer, a modified paper layer and a bottom layer from bottom to top; wherein the surface layer and the bottom layer are both glassine paper; the density of the glassine paper of the surface layer is 1.15-1.20 g / cm < 3 >; and the density of the glassine paper at the bottom layer is 1.05-1.10 g / cm < 3 >. Polydimethylsiloxane is selected as the release layer, the release force of the adhesive can be remarkably reduced due to the fact that polydimethylsiloxane has ultralow surface energy, and the crosslinked polydimethylsiloxane layer is high in chemical inertness, low in heat resistance and moisture migration resistance, not prone to migration after being stored for a long time and easy to form chemical combination with the bottom coating layer, so that the adhesive force is improved.

The invention provides a production method of high-glossiness tipping base paper for cigarettes, which comprises the following steps: step 1, pulping: selecting an appropriate coniferous and hardwood pulp variety, and mixing and pulping coniferous pulp and hardwood pulp; step 2, preparing pulp: adding cationic starch into the beaten pulp; step 3, sizing in the pulp: adding a sizing agent into the pulp to adjust and control the water absorption of the paper; step 4, manufacturing and molding, namely diluting the sizing agent after sizing and then carrying out calendering treatment; step 5, prime coating: carrying out prime coating treatment on the produced tipping base paper for the cigarettes; step 6, top coating: carrying out top coating treatment on the surface of the paper subjected to bottom coating and primary baking; 7, back application, state adjustment and calendering are conducted, and the high-glossiness tipping base paper for the cigarettes is obtained. The emulsion is prepared to form a film on the base paper, so that the glossiness of the tipping base paper for the cigarettes is improved.

The invention discloses a paper-based composite film, which adopts a four-layer structural design, and the outer layer is an ultraviolet shielding layer formed by coating TiO2 with lignin; the transition layer is composed of 32-64 PLA / PBAT alternating microlayers, and the multiple alternating transition layers form a zigzag gas barrier path; ag-coated ZIF-8 nanoparticles are loaded on the paper base layer, so that long-acting antibiosis is realized by slowly releasing silver ions; and the inner layer adopts a PPC / PBS blend to support the heat sealing layer with adjustable heat sealing strength. According to the preparation process, a gradient micro-layer structure is constructed through a multi-runner co-extrusion die head and a layer multiplier, silver ions are loaded to ZIF-8 through an ultrasonic-vacuum impregnation process, the hydroxyl density of the surface of the paper base layer is improved through plasma treatment, good interlayer strength is achieved, ester bond crosslinking is induced in a pre-irradiation mode, and the product is prepared. The paper-based composite film has ultraviolet shielding, gradient blocking, slow-release antibacterial and controllable heat sealing performance, the interface bonding strength of a traditional paper-based composite film is greatly improved, all components are biodegradable, and the paper-based composite film is suitable for packaging of food, medicine and the like.

The invention discloses high-barrier waterproof and oil-proof meal package paper and a preparation method thereof, and relates to the technical field of food packaging materials. The invention discloses a preparation method of high-barrier waterproof and oil-proof meal package paper, which comprises the following steps: coating raw paper with waterproof and oil-proof glue to obtain the high-barrier waterproof and oil-proof meal package paper, the waterproof and oil-proof glue comprises the following raw materials in percentage by weight: 1-2% of modified chitosan, 4-5% of carboxymethyl cellulose, 0.3-0.5% of nano cellulose, 0.15-0.25% of modified nano mesoporous silica, 0.3-0.42% of a bio-based cross-linking agent and the balance of a solvent, and the sum of the weight percentages of the raw materials is 100%. The prepared meal package paper is good in waterproof and oil-proof effects, and the folding strength of the coating is high.

The invention relates to the technical field of cigarettes, and discloses cigarette paper and an aerosol generating matrix product. The cigarette paper is used for wrapping an aerosol generating substrate, accelerant particles are arranged on one side, in contact with the aerosol generating substrate, of the cigarette paper, and the accelerant particles comprise an SAPO 34 molecular sieve and a metal compound loaded on the SAPO 34 molecular sieve. The cigarette paper aerosol generating substrate can effectively reduce the smoke moisture content of a heated cigarette.

The utility model discloses cigarette paper for heating cigarettes, which is used for the heating cigarettes for circumferential heating and non-contact bottom hot air heating and comprises a paper body, the paper body is made of silicon coated paper or ceramic fiber paper, and the silicon coated paper comprises a first silicone oil layer, a base paper layer, an oil-proof film layer and a second silicone oil layer which are sequentially connected. The oil-proof film layer and the base paper layer form composite film paper in a coating manner, the composite film paper, the first silicone oil layer and the second silicone oil layer are compounded to form an integral structure, and the ceramic fiber paper is formed by mixing, pouring and extruding various raw materials. When the cigarette paper for heating the cigarette is used for manufacturing the cigarette for smoking, the baked paper flavor is not generated, and the sensory experience is greatly improved; after smoking is completed, the cigarette does not leak oil, and cleaning of appliances is facilitated.

The invention discloses low-reflection type electromagnetic shielding composite paper and a preparation method thereof, and belongs to the technical field of electromagnetic shielding. The invention provides low-reflection type electromagnetic shielding composite paper which is of a sandwich structure and is sequentially composed of an aerogel film layer, a conductive paper layer and a conductive thin film layer. Wherein the aerogel film layer is composed of a cellulose nanofiber base material, a cross-linking agent and a conductive filler; the conductive paper is obtained by impregnating plant fiber-based body paper with a dispersion liquid of a conductive filler; the conductive film is composed of nanocellulose fibers and a conductive filler. The electromagnetic shielding paper has a unique layered structure, and impedance matching of the electromagnetic shielding paper is improved through interlayer conductive gradient. The prepared low-reflection type electromagnetic shielding paper has excellent electromagnetic shielding performance and ultralow reflection efficiency at the same time.

The invention relates to an impregnated paper production quality detection method and system based on deep learning, and the method comprises the following steps: S1, obtaining an industrial camera image flow, sensor and process parameters, and event and work order information, and constructing a synchronous data packet; s2, preprocessing the synchronous data packet to obtain preprocessed image data, process data and an ROI mask; s3, obtaining a detection frame set and a segmentation mask set based on multi-model AI detection and segmentation according to the preprocessed image data, the process data and the ROI mask; s4, segmenting the mask set according to the detection frame set, and performing track clustering along the paper feeding direction to form a defect event flow; s5, on the basis of the defect event stream, performing online quality prediction and root cause analysis, and obtaining future interval quality prediction and key factor sorting; and S6, according to future interval quality prediction and key factor sorting, adaptive process optimization is carried out, and an optimal control instruction is obtained. According to the invention, the detection accuracy and fineness are effectively improved, and intelligent identification and cross-frame tracking of defects are realized.

The invention discloses a method for solving linting and dusting during paperboard printing, and belongs to the technical field of papermaking. Comprising the following detailed steps: a slurry preparation process, surface sizing treatment and a drying and curing process, in the slurry preparation process, various high-quality fiber raw materials are carefully selected and mixed, the proportion of various fibers is accurately controlled according to the expected performance and quality requirements of the paperboard, and meanwhile, a proper amount of auxiliaries are added; and the binding force between the fibers and the strength of the paper are enhanced. The raw material ratio in the paperboard production process is precisely regulated and controlled, the specially-made composite surface sizing agent is adopted for surface treatment, and scientific and reasonable drying and curing processes are matched, so that the problems of linting and powdering of the paperboard in the printing process are effectively solved, and the printing quality and the production efficiency of the paperboard are improved.

The invention discloses nano cellulose with high lignin content, a preparation method thereof and application of a barrier coating. The preparation method comprises the following steps: mixing a lignocellulose raw material with dilute sulphuric acid for acid pretreatment, and selectively depolymerizing hemicellulose to obtain lignin-rich residues of which the relative content of lignin is higher than that of the raw material; and carrying out mechanical nano fibrillation treatment to obtain the high-lignin-content nano cellulose with the lignin content of 29-60%. The prepared nano cellulose with high lignin content has excellent thermal stability, hydrophobicity and organic compatibility. The surface of paper is coated with the coating material, after hot pressing treatment, the Cobb value of the coated paper is as low as 3.3 g / m < 2 >, the water vapor permeability is only 12.1 g / (m < 2 >. D), grease permeation can be completely blocked, and the coating material has wide application prospects in the field of food packaging.

A method for producing a structuring means for texturing an embossable material surface, in particular a resin-containing laminate surface, including the steps of providing a web-shaped carrier material made of paper and / or plastic, applying a UV-curable lacquer layer made of acrylated oligomer to the carrier material, forming a three-dimensional embossed structure into the lacquer layer applied to the carrier material and curing the lacquer layer by irradiation with high-energy radiation, preferably UV light, during the molding of the embossed structure. The invention provides that before the UV-curable lacquer layer is applied at least one adhesion promoter layer including acrylated oligomer, a reactive diluent and a photoinitiator which reacts to high-energy radiation, preferably UV radiation, is applied onto the carrier material, and that the lacquer layer having the embossed structure is cured by irradiation with high-energy radiation, preferably UV light, to such an extent that, in the finished state, the structuring means has an average Martens hardness according to DIN EN ISO 14577 in the range from 10 to 80 N / mm2, preferably in the range from 30 to 80 N / mm2, the indenter used as a test body for measuring the Martens hardness being pressed into the surface of the lacquer layer having the embossed structure. A structure means is also disclosed.

The invention discloses a structure and method for improving the bulkiness performance and the water absorption performance of kitchen paper, and the structure comprises an embossed surface layer and an embossed bottom layer which are sequentially connected from top to bottom in the vertical direction; a first embossing unit and a second embossing unit are arranged on the lower bottom surface of the embossing surface layer, and a third embossing unit and a fourth embossing unit are arranged on the upper surface of the embossing bottom layer; the first embossing unit comprises a plurality of first protruding parts, and the first protruding parts and the embossing bottom layer form a supporting structure and a water retention unit. The second embossing unit comprises a plurality of second protruding parts, and the second protruding parts and the embossing bottom layer form a supporting structure and a water retention unit. The third embossing unit comprises a plurality of third protruding parts, and the fourth embossing unit comprises a plurality of fourth protruding parts. The first embossing unit and the third embossing unit form a supporting structure, and the second embossing unit and the fourth embossing unit form a water retention unit. The bulk, porosity and water absorption performance of the raw paper for the kitchen paper are improved, and the raw paper has a good supporting structure and water and moisture absorption strength.

The invention discloses a dispersible plant antibacterial wet toilet paper and a preparation method thereof, the dispersible plant antibacterial wet toilet paper comprises a dispersible non-woven fabric and a wet toilet paper feed liquid, and the dispersible non-woven fabric is made of imported raw wood pulp; the wet toilet paper material liquid is prepared from the following raw materials in percentage by weight: 1, 8-cineole, terpinen-4-ol, lactic acid, an auxiliary agent, a natural plant extract, a humectant, a preservative, a stabilizer, PEG-400, Australian tea tree essential oil, essence and RO (Reverse Osmosis) pure water. The plant antibacterial wet toilet paper disclosed by the invention not only has good dispersion performance and high wet strength, but also has the advantages of mildness, no irritation, safety in use, plant antibacterial property, moisture retention, skin moistening, quietness, elegance and faint scent; and moreover, the environment-friendly plastic can be completely biodegraded, so that the pollution to the environment can be effectively reduced.

The invention discloses a compound herbal puffed body as well as a preparation method and application thereof. The preparation method comprises the following steps: adopting compound herbal raw materials; crushing the compound herbal raw materials, and performing puffing treatment; and preparing the compound herbaceous puffed body. The compound herbal puffed body is prepared by adopting the preparation method. The invention further provides application of the compound herbal puffed body. The periphery of the compound herbal puffed body is wrapped with paper to be made into moxibustion sticks or incense. According to the present invention, the formula of the puffed body material prepared from the compatibility of the traditional Chinese medicinal materials and the plants is adopted, the advanced assay and test technology is adopted, the advanced puffed body preparation technology is adopted after the pharmacological experiment, and the puffed body or the filamentous puffed body is adopted; and the moxibustion or incense is prepared in a manner of wrapping paper outside. When the product is actually used, not only is the requirement of moxibustion therapy met, but also the requirement of daily incensing is met, and the practical value and the market value of being multiple in product variety, wide in audience range and wide in use scene are achieved.

The invention discloses preparation of an anti-chronic pharyngitis microcapsule medicine and application of the anti-chronic pharyngitis microcapsule medicine in tipping paper for cigarettes, the medicine is MF-GA / IL (at) MPN, and the medicine is composed of an ionic liquid (IL) as an internal carrier and a microcapsule carrier with a metal phenol network (MPN) as a shell; wherein the metal phenol network is formed by aluminum ions and mangiferin through a coordination reaction, and the ionic liquid is CAGE ILs formed by vanillin and choline. The combination of mangiferin and glycyrrhizic acid is used as a strategy for treating chronic pharyngitis, it is found that the effective loaded MF-GA / IL-coated MPN microcapsule preparation is obtained by packaging the two drugs including mangiferin and glycyrrhizic acid with the ionic liquid as the core and the metal phenol network as the shell, the tissue permeability of the drugs is improved, a certain slow release effect is achieved, and the effect of treating chronic pharyngitis is achieved. The bioavailability of mangiferin and glycyrrhizic acid is improved, and the anti-inflammatory activity effect is better achieved.

The invention relates to a method for preparing carbon paper by blending PVA fibers and carbon fibers into a net, and relates to the technical field of carbon paper preparation, and the method comprises the following steps: (1) respectively opening carbon fibers and water-soluble polyvinyl alcohol fibers, mixing the two fibers in proportion, carding, lapping and reinforcing to prepare a preform with the gram weight range of 60-270g / m < 2 >; (2) reducing the preform with hot water to remove polyvinyl alcohol fibers, and then drying to obtain a uniform carbon paper preform with the gram weight of 10-180g / m < 2 >; (3) impregnating the carbon paper preform in resin, drying, and performing hot press molding to obtain a carbon paper base material; and (4) performing low-temperature carbonization and high-temperature graphitization treatment on the carbon paper base material in an oxygen-free environment to obtain a carbon paper finished product. The carbon fiber web forming method has the advantages that the carbon fiber web forming difficulty is reduced, meanwhile, continuous and stable carbon web forming can be achieved, and then continuous carbon paper can be rapidly prepared.

The invention discloses an in-situ doped ZnO paper-based insulating material and a preparation method thereof, and belongs to the technical field of paper-based special materials in paper industry. The method disclosed by the invention comprises the following steps: mixing and stirring zinc chloride and water to obtain a zinc chloride hydrated eutectic solvent; then soaking the porous base paper in a zinc chloride hydrated deep-eutectic solvent for swelling treatment to obtain gelatinized base paper; immersing the gelatinized raw paper into an ethanol / water anti-solvent system for regeneration treatment to obtain regenerated raw paper; then dipping the regenerated raw paper in alkali liquor for in-situ deposition treatment to obtain raw paper with ZnO micro-nano particles loaded and doped on the surface; and performing post-treatment on the body paper with the surface loaded and doped with the ZnO micro-nano particles to obtain the in-situ doped ZnO paper-based insulating material. According to the method disclosed by the invention, in-situ doping of the ZnO micro-nano particles is successfully realized in the densified base paper, and the dielectric property is further remarkably improved by cooperating with the densification effect.

The present invention relates to surface-foamed paper and paperboard coated with a thermosensitive micro-foaming agent and, more specifically, to surface-foamed paper and paperboard that exhibit excellent shock absorption and buffering performance by coating the surface of paper with a foaming mixture comprising a micro-foaming agent and starch, and then foaming the micro-foaming agent through high-temperature drying. In addition, the present invention relates to eco-friendly surface-foamed paper and paperboard using a foam material that can volumetrically expand on the surface of paper and paperboard.

The invention discloses printing ink and application thereof in tipping paper for heating cigarettes, and belongs to the field of tobacco products. The printing ink comprises polyvinyl butyral resin, a filler, an auxiliary agent and a solvent, the ink is good in thermal stability, the tipping paper for heating the cigarettes prepared from the ink is used for heating the cigarettes, no peculiar smell of the ink is generated in the smoking process of the heated cigarettes, the influence on the sensory quality of the heated cigarettes is reduced, and the ink has relatively high industrial availability, high safety and low cost and is applied to the production of the heated cigarettes.

Methods are provided for defoaming water used in processing of various products such as cellulose or wood-based products or in food processing which is formed by reacting a fatty acid with a compound selected from the group consisting of ammonia, sodium, potassium and combinations thereof so as to form a water soluble soap, dispersing the water soluble soap in water and homogenizing the dispersed water soluble soap with hydrophobic oil or hydrocarbon oil to produce the emulsion. Methods for preparing an emulsion used in this process are also provided. The emulsion is advantageous in that it can improve water resistance and / or reduce the use of water resistant additives during processing of cellulose or wood-based products or food-grade products.

Floor, Wall or Ceiling panel comprising a board (11) and a decorative top layer (12), wherein the decorative top layer (12) is provided on the board. The board (12) is based on MgO and MgChloride or wherein the board (12) is based on MgO and MgSulphate. The decorative layer (12) comprises a printed paper sheet (decor) (17) being treated with a resin, such as melamine formaldehyde (MF), polyurethane (PU), latex, acrylate dispersion or a combination thereof. The decorative top layer (12) is applied to the board by means of a direct pressure lamination (DPL) process.

A decorative paper (10) is provided with: a raw material layer (1); the pattern printing layer (2) is arranged on the raw material layer (1); a highly designed protective layer (3) partially disposed on the pattern printed layer (2); and a high-design resin layer (4) provided on the high-design protective layer (3) in synchronization with the high-design protective layer (3). A decorative sheet (100) is provided with decorative paper (10) and a cured impregnating resin (5) impregnated in the decorative paper (10).

The invention discloses an environment-friendly phenol-free thermo-sensitive paper label material and a preparation method thereof, and relates to the technical field of thermo-sensitive paper. When the environment-friendly phenol-free thermo-sensitive paper label material is prepared, cellulose sequentially reacts with cyanoacetic acid, 4-(2-chloroethyoxyl) benzophenone and N, N-dimethylpropyl-1-amine to prepare modified cellulose; the preparation method comprises the following steps: carrying out reaction on silicon dioxide and diethylenetriamine propyl trimethoxy silane to prepare pre-modified silicon dioxide; reacting the pre-modified silicon dioxide, phosphorous acid and formaldehyde to obtain modified silicon dioxide; uniformly mixing functional styrene-butadiene emulsion, modified cellulose, modified silicon dioxide, a color developing agent, a lubricating agent, a sensitizer and colorless pigment to prepare a thermosensitive coating; and uniformly coating the surface of thermosensitive base paper with the thermosensitive coating by using a coating machine, and drying to obtain the environment-friendly phenol-free thermosensitive paper label material. The environment-friendly phenol-free thermo-sensitive paper label material prepared by the invention has excellent wear resistance, antibacterial property, light resistance and flame retardance.

The invention belongs to the technical field of papermaking, and particularly relates to a process for improving blister fastness of a blister card. Comprising the following steps: treating needle and hardwood pulp with compound enzyme, adding light magnesium oxide, grinding to obtain compound modified pulp, preparing three layers of pulp, diluting and purifying, adding auxiliaries into a three-layer slushing pump before purifying, and adding core layer auxiliaries containing hydroxymethyl urea modified cationic polysaccharide and the like into a core layer pump; the three layers of pulp are compounded into a wet paper web layer by layer through an upper net of a headbox, gradient pre-drying is performed after multiple times of squeezing dehydration, and then surface sizing, post-drying, hard calendaring, front and back coating and soft calendaring are performed in sequence to obtain a finished blister card product. The process effectively solves the problems of infirm blister and shelling in narrow-edge blister processing, realizes standardized control of slurry quality, greatly reduces batch-to-batch difference of blister effects, remarkably improves the binding force of a narrow-edge blister area, optimizes the surface performance of paper, reduces the phenomena of linting and powdering during printing, and improves the printing quality of the narrow-edge blister blister. And the printing adaptability is improved.

The invention belongs to the technical field of coated paper, and particularly discloses coated paper capable of being used by microwaves and a paper container. The coated paper capable of being used by microwaves comprises paper and a coated layer, and the coated layer is prepared from the following raw materials in parts by weight: 100 to 110 parts of polylactic acid, 50 to 60 parts of degradable toughening resin, 20 to 25 parts of modified talcum powder, 15 to 18 parts of modified chitosan fiber, 3 to 5 parts of maleic anhydride grafted polypropylene, 1 to 2 parts of antioxidant, 2 to 3 parts of anti-ultraviolet agent and 4 to 5 parts of pentaerythritol stearate. The microwavable coated paper prepared in the invention has good high and low temperature resistance, strength and heat sealability, and the mechanical properties, cohesiveness and heat stability of the coated layer are improved through cooperation of the raw material components.

The invention provides a paper product, a coating, a biological adhesive and a preparation method thereof. The preparation method of the biological adhesive comprises the following steps: adding starch and dextrin into water, and stirring to obtain first mixed slurry; adding a composite plasticizer into the first mixed slurry, and stirring to obtain second mixed slurry; and heating the second mixed slurry to obtain the biological adhesive. According to the preparation method of the biological adhesive provided by the embodiment of the invention, a non-digestion conversion process is adopted, renewable resources, namely dextrin and starch, are taken as main bodies, dextrin plays a role in improving the stability of a glue solution, and then the high-performance biological adhesive is obtained by adding a composite plasticizer and controlling the viscosity parameter of the glue solution; the adhesive can be used in pre-coating and top-coating coatings, the prepared coating has high strength, and the defect of low strength of an enzymatically converted starch adhesive is overcome.

The disclosure provides a decorative sheet 1 including a primary film layer 2 and a surface protective layer 5 provided to one side of the primary film layer 2, wherein the surface protective layer 5 has a surface provided with an uneven structure including a plurality of ridge portions each protruding in a ridge-like shape; in the uneven structure of the surface protective layer 5, a ratio Rdc / t between a cut level difference Rdc and a thickness t of the surface protective layer 5 is 0.15 or more and 0.44 or less; the thickness t of the surface protective layer 5 is 2 μm or more and 18 μm or less; and an absorption spectrum obtained from Fourier infrared spectrometry of the surface protective layer 5 has a ratio I1095 / I1725 of 0.65 or more.

To provide a decorative sheet that is low gloss and gives coarse texture.SOLUTION: A decorative sheet 1 comprises an original fabric layer 2 and a surface protective layer 5 provided on one surface of the original fabric layer 2, where an uneven structure including a plurality of ridge-shaped parts, each of which is protruded in a ridge-shape on the surface of the surface protective layer 5, is provided, the uneven structure of the surface protective layer 5 has a protruding crest part height Rpk of 3.5 μm or more, and an absorption spectrum of the surface protective layer 5 obtained in Fourier type infrared spectroscopy has a ratio I1095 / I1725 between the maximum value I1095 in a wave number range of 1085 to 1105 cm-1 and the maximum value I1725 in a wave number range of 1715 to 1735 cm-1 of 0.65 or more.SELECTED DRAWING: Figure 1