53results about "Defoamers addition" patented technology

The invention relates to the field of packaging materials, and discloses low-temperature heat-sealing water-based coated paper and a preparation method and application thereof.The water-based coated paper comprises a base paper layer and a water-based coating, and the water-based coating comprises water-based ethylene-acrylic acid copolymer emulsion, modified nano-silica, a coalescing agent and water; a cardanol derivative is introduced into the water-based ethylene-acrylic acid copolymer emulsion as a functional component; the cardanol derivative is prepared by reacting epoxidized cardanol with 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide and then grafting with acryloyl chloride. The preparation method comprises the following steps: reacting epoxidized cardanol with 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide; the modified nano silicon dioxide is prepared by mixing aminated nano silicon dioxide and chitosan and adding a cross-linking agent prepared by grafting phytic acid and ethylene glycol diglycidyl ether. The water-based coating paper prepared by the invention overcomes the defects that the existing BOPP film is not environment-friendly, and the conventional coating paper is high in heat sealing temperature and easy to stick; meanwhile, good mechanical properties, water resistance and flame retardance are achieved.

The application discloses a mineral-based easily-recyclable compostable water-barrier coating and a preparation method thereof, and belongs to the technical field of paper-based packaging materials. The coating is formed by a biodegradable film-forming system and a hierarchical lamellar mineral system containing three different scales and morphologies. The mineral system contains specific morphology and size of lamellar kaolin, non-asbestos grade lamellar talc and fully exfoliated sodium montmorillonite. The mineral lamella forms a dense parallel spread barrier path in the coating through a specific coating and drying solidification process, and combines a pH value responsive reversible cross-linking system to achieve excellent water vapor and oxygen barrier properties, water resistance and oil resistance at a low dry weight of 8-15 g / m2. The coating system does not contain polyvinylidene chloride and perfluoro and polyfluoro alkyl substances. The paper-based material coated with the coating is easily defibered and recycled under standard alkaline warm water conditions, and the fiber recovery rate is high, and meanwhile, the whole material meets the industrial composting requirements.

The invention provides a moisture-proof corrugated board and a production process thereof. The moisture-proof corrugated board comprises inner paper, core paper and surface paper which are sequentially arranged, and the surfaces of the inner paper and the core paper are coated with moisture-proof coatings; the invention relates to a preparation method of an anti-aging agent. The moisture-proof coating is prepared from the following raw materials: 35 to 45 parts of waterborne acrylic resin, 10 to 16 parts of fluorine modified shape memory polyurethane, 8 to 12 parts of waterborne polyurethane dispersion, 4 to 8 parts of bamboo charcoal loaded nano silver-zinc oxide composite particles, 3 to 6 parts of hydrophobic nano silicon dioxide, 5 to 9 parts of chitosan modified nano cellulose, 1.5 to 2.5 parts of silane coupling agent, 0.8 to 1.2 parts of dispersing agent, 0.2 to 0.4 part of defoaming agent and 0.5 to 0.9 part of wetting leveling agent. The corrugated board provided by the invention has excellent moisture resistance, mildew resistance and structural stability.

Highly active defoamer compositions which are storage stable and maintain their defoaming efficiency for extended times even in harsh chemical environments are prepared by an aqueous base-catalyzed condensation of a hydroxy-terminated polyorganosiloxane, a silicone resin bearing hydroxy groups or hydroxy-reactive groups, and hydrophilic silica. The condensation takes place at a temperature of 80°C to less than 130°C, and the reaction viscosity is monitored to determine an appropriate time to add the hydrophilic silica.

The invention discloses a preparation method of coated gift packaging paper. The preparation method comprises the following operation steps: S1, pulping: respectively pulping bleached sulfate softwood chemical pulp, bleached sulfate broadleaf wood chemical pulp and alkaline hydrogen peroxide bleached poplar chemimechanical pulp, and mixing to form mixed pulp; s2, auxiliary material adding, wet paper sheet forming and pre-drying; s3, coating and sizing are conducted, specifically, the front face and the back face of the paper sheet are coated with a coating respectively, and the coating comprises coating-grade light calcium carbonate, coating-grade talcum powder, a dispersing agent, sodium hydroxide, modified acrylic copolymer emulsion, polyvinyl acetate latex, coating starch, sodium carboxyl cellulose, a lubricating agent and a defoaming agent; s4, carrying out post-drying and carrying out super-soft calendering treatment by adopting eight rollers and seven pressing areas; the invention also provides the coated gift packaging paper prepared by adopting the preparation method, the smoothness of the coated gift packaging paper is greater than 1200s, the roughness of the coated gift packaging paper is less than 1.2 microns, and the coated gift packaging paper completely meets the requirements of the coated gift packaging paper for absorbing and drying gravure or flexographic printing water-based ink.

The invention discloses a preparation method of a silicone oil modified polyether defoaming agent, which is characterized in that alkynol (EO / PO type) block polyether and allyl alcohol (PO / EO type) block polyether are subjected to addition reaction under the action of a catalyst to generate the silicone oil modified polyether defoaming agent. The silicone oil modified polyether defoaming agent disclosed by the invention has the characteristics of high foam breaking speed and long foam inhibition period; the defoaming agent provided by the invention has the advantages of high temperature resistance, excellent chemical stability and excellent compatibility, and compared with a traditional polyether defoaming agent, the defoaming agent provided by the invention can achieve a better defoaming effect under the condition of a relatively low addition amount.

The application discloses a kind of strong penetration cooking-resistant type water-based textile paper tube two-component epoxy dip coating and preparation method thereof, belong to water-based paint technical field.The coating is composed of A component and B component, A component uses the composite wetting penetrant that self-emulsifying submicron water-based epoxy dispersion and sulfobutane acid dioctyl sodium salt, acetylene glycol surfactant are composed of;B component selects fast-drying water-soluble modified polyamine curing agent, adds reactive curing accelerator.By the synergy of small particle size epoxy dispersion and composite wetting penetrant, the technical problem that traditional water-based paint is poor in paper tube fiber permeability, weak adhesion is solved;At the same time, through the synergistic effect of fast-drying curing agent and accelerator, the drying time is shortened.The coating has the characteristics of low VOC content, environmental protection safety, strong penetration to paper tube substrate, fast drying speed, excellent adhesion, and the dense paint film formed after curing has the performance of saturated water vapor cooking resistance.

The application relates to the technical field of paper for fuel cells, and particularly discloses carbon fiber raw paper for fuel cells and a preparation method thereof, which comprises the following components: 100 parts (70-95 parts of short-cut carbon fibers and 5-30 parts of water-soluble fibers) of fibers, 40-50 parts of dispersant A, 50-100 parts of dispersant B and 0.5-1 part of defoaming agent; after the short-cut carbon fibers and the water-soluble fibers are defibrated, the dispersant A is added for mixing and high-speed stirring to complete foam dispersion, water is added for dilution to first-concentration carbon fiber slurry; the defoaming agent is added for first-time stirring to obtain carbon fiber dispersion slurry; the remaining dispersant A and the dispersant B are added for second-time stirring, water is added for dilution to second-concentration carbon fiber slurry; the second-concentration carbon fiber slurry is used for papermaking to obtain the carbon fiber raw paper for fuel cells. The carbon fibers are prone to occur in the dispersion process, the phenomenon of silk and flocculation is solved, the paper uniformity is good, the tensile strength is high, the carbon fiber raw paper for fuel cells is used for fuel cells, and the important index requirements of porosity and resistance and the like are met.

The invention discloses a spatial reticular silicon paste type defoaming agent as well as a preparation method and application thereof. The preparation method comprises the following steps: putting fluorine-containing ethynyl MQ silicon resin, hydrogen-containing silicone oil, hydroxyl silicone oil, hydrophobic SiO2 and dimethyl silicone oil into a reaction kettle, carrying out nitrogen protection, stirring and heating to 65-90 DEG C, adding chloroplatinic acid, carrying out an addition reaction for 0.5-2 hours, then adding a base catalyst, continuing to heat to 120-140 DEG C, carrying out a condensation polymerization reaction for 2-4 hours, cooling and discharging to obtain spatial reticular silicon paste; mixing the spatial reticular silicon paste, the polyether modified silicone oil, polyether and the emulsifier, stirring and heating to 55-65 DEG C, adding deionized water for phase inversion emulsification, cooling, adding deionized water, and adding the thickener to obtain the spatial reticular silicon paste type defoaming agent. Compared with the traditional silicon paste type defoaming agent in papermaking pulping, especially chemical pulping, the defoaming agent prepared by the invention has the characteristics of high black liquor defoaming speed, good foam inhibition property, good pulp washing water filtration property, no toxicity, no harm and simple preparation process.

Disclosed is a method for manufacturing a base paper for eco-friendly paper cups and, more specifically, to a method for manufacturing a base paper for eco-friendly paper cups, the method enabling the manufacturing of a base paper for eco-friendly cups, which has excellent heat sealability, water resistance, and block resistance, facilitates recycling, and is biodegradable in nature.

The invention discloses two types of 50-200g / m < 2 > flame-retardant paper, namely flame-retardant wood pulp paper and flame-retardant mixed pulp paper, the two types of paper adopt completely different fiber base materials, and the formula composition, the preparation process and the performance difference are obvious. The flame-retardant wood pulp paper takes wood pulp as a base material, adopts a phosphorus-nitrogen cross-linked flame-retardant system, is matched with an accurate chemical auxiliary agent ratio, has high breakage resistance, high stiffness and high flame-retardant grade, and is suitable for archive envelopes and high-end packages; the flame-retardant mixed pulp paper takes regenerated mixed pulp as a base material, adopts a synergistic adsorption flame-retardant system, is flexible and folding-resistant, is low in cost, and is suitable for universal scenes such as roll skins, envelopes, paper bags and the like. The gradient formula is designed for the full gram weight interval of 50-200 g / m < 2 >, the dosage of the flame retardant and the auxiliary agent is precisely increased along with the gram weight, the paper is self-extinguished when being away from fire, dripping is avoided, halogen is avoided, the paper is environmentally friendly, the formula and the process are designed in a closed-loop mode, the technical barrier is high, imitation is difficult, and the method is suitable for industrial mass production and intellectual property protection.

The application belongs to the technical field of papermaking, and particularly relates to a domestic fiber anti-fake coated cigarette card paper and a production process thereof. The domestic fiber anti-fake coated cigarette card paper comprises a base paper layer, a coating layer and a back adhesive layer. The base paper comprises a surface layer, a core layer and a bottom layer. The anti-fake domestic fiber accounts for 4-6% of the surface layer, 1-3% of the core layer and 6-9% of the bottom layer. The coating layer is coated on the surface layer and is divided into three layers, i.e., a pre-coating layer, a middle coating layer and a surface coating layer. The back adhesive layer is coated on the bottom layer. The application adds the anti-fake domestic fiber with different proportions in three layers to form a unique texture on the paper plane. The three-dimensional fiber texture with different levels and different brightness can be observed through light. The anti-fake fiber on the surface layer of the paper surface is greater than or equal to 50 per 55*22 mm, and the anti-fake fiber on the bottom layer is greater than or equal to 140 per 55*22 mm. The prepared coated cigarette card paper can be effectively distinguished from ordinary white card paper and has the anti-fake function.

Disclosed is a base paper for eco-friendly paper cups and, more specifically, to a base paper for eco-friendly paper cups, which is eco-friendly by having recyclability and biodegradability while retaining water resistance, oil resistance, heat sealability, and block resistance required as a base paper for paper cups.

The invention relates to the technical field of mica plates, and discloses a high-temperature-resistant mica plate and a preparation process thereof, and the high-temperature-resistant mica plate is formed by hot-pressing a plurality of layers of mica paper, and a glue solution I, a glue solution II and a glue solution III which are sequentially coated; wherein the first glue solution contains organic resin and flame-retardant filler, the second glue solution contains aluminum dihydrogen phosphate, and the third glue solution contains low-melting-point glass powder. The preparation process comprises the following steps: respectively preparing three glue solutions; impregnating mica paper in the glue solution, and drying for the first time to obtain semi-cured mica paper; dipping in the glue solution II and drying for the second time to form an inorganic transition layer; then dipping in a glue solution III and drying for the third time to obtain a composite dipping prepreg; and finally, stacking the prepreg, and carrying out hot-pressing curing and post-treatment at high temperature and high pressure. According to the invention, a compact ceramic skeleton can be formed in situ at high temperature, the problems of pyrolysis failure of organic glue and falling of mica sheets are solved, and the moisture-proof insulating property is good.

The invention provides water-resistant bobbin base paper and a process thereof, and the bobbin base paper comprises the following components in parts by weight: 80-120 parts of a natural wood fiber raw material, 3-9 parts of chitosan, 4-12 parts of a waterproof emulsion, 3-9 parts of a treating agent, 2-6 parts of a defoaming agent, 1-3 parts of a sterilizing agent and 2-4 parts of a cross-linking agent, the natural wood fiber raw material is one or a mixture of more of commercial paper pulp, waste paper and straw agricultural wastes; the commercial paper pulp is one or more mixed pulp of bleached softwood pulp, bleached hardwood pulp, dissolving pulp or unbleached paper pulp, the preparation process is simple, the prepared bobbin body paper has the advantages of high strength, water resistance and easiness in printing, meanwhile, the bobbin body paper also has excellent waterproof performance, and the service life of a bobbin paper product is prolonged.

The invention relates to the technical field of material processing, in particular to an impregnating emulsion for scratch-resistant formaldehyde-free impregnated decorative paper and a preparation method of the impregnating emulsion. Comprising the following components in parts by weight: 50 to 70 parts of organic silicon modified polyurethane-acrylate resin, 30 to 40 parts of acrylamide monomers, 2 to 8 parts of nano-hydroxyapatite, 2 to 5 parts of a curing agent, 0.01 to 0.03 part of a defoaming agent, 0.01 to 0.05 part of a base material wetting agent and 30 to 45 parts of deionized water. All the components of the prepared adhesive are free of free formaldehyde, and the adhesive product is free of free formaldehyde release, so that the formaldehyde-free impregnation of the impregnated decorative paper is realized. Organic silicon is used for modifying polyurethane-acrylate emulsion, the solid content of the polyurethane-acrylate emulsion is properly increased, the glue absorption amount of the impregnated decorative paper can be increased, and acrylamide monomers are introduced, so that the impregnated decorative paper can rapidly permeate into the interlayer of decorative base paper at room temperature and is self-crosslinked and cured at high temperature, and the interlayer bonding strength of the paper layers of the impregnated decorative paper is improved.

The present disclosure relates to a method of treating an aqueous foamable medium, such as a process stream of a pulping and paper mill, comprising contacting the aqueous process stream with a defoaming agent comprising: a) at least one C12 to C40 Guerbet alcohol; and / or b) at least one polyol ester.

The application provides a multi-element composite papermaking filler coating treatment agent, a preparation method and application thereof, and belongs to the papermaking filler treatment field. The preparation method of the multi-element composite papermaking filler coating treatment agent comprises the following steps: a polymerization reaction, preparation of a first component, and preparation of a second component. The multi-element composite papermaking filler coating treatment agent, the preparation method and application thereof can effectively improve the retention rate of papermaking fillers in paper and the single-pass retention rate of papermaking, improve the distribution uniformity and bonding state of the papermaking fillers in paper, and avoid the adverse effects of a large amount of papermaking fillers on the performance of paper. While increasing the content of papermaking fillers in paper, the mechanical performance, printing performance of paper are simultaneously improved, the drainage and running performance of a paper machine are improved, and the high-temperature storage stability of the papermaking filler dispersion liquid after coating treatment is improved.

The application relates to a degradable corrugated paper auxiliary and a preparation method thereof, and belongs to the technical field of packaging materials. The auxiliary comprises, in terms of weight parts, 50 parts of oxidized starch, 6-8 parts of a modified reinforcing agent, 0.5-0.7 parts of a thickening agent, 0.15-0.2 parts of a dispersing agent, 0.1-0.13 parts of an antifoaming agent, 0.02-0.03 parts of a mildew-proof agent and 90-100 parts of water; in the process of sizing and curing, the ethoxysilane of the side chain of the modified reinforcing agent is coupled and condensed with the hydroxyl of the paper fiber, the main chain of the ethoxysilane is clamped in the macromolecular chain of the starch, rivet action is generated, the binding strength between the paper fibers is increased, the paper fibers are not prone to cracking in the bending process, in addition, in the process of coupling and condensation, a fluorine-containing organic silicon water-resistant layer is uniformly introduced to the surface of the paperboard substrate, and the water-resistant stability of the paperboard is effectively improved.

The invention discloses raw paper based on a biomass conversion material and a preparation method of the raw paper, and relates to the technical field of papermaking. Biomass fibers and a modifying reagent react to prepare modified biomass fibers, an inorganic filler is modified to obtain a modified filling component, the modified biomass fibers and the inorganic filler are matched with an adhesive component, a defoaming agent, a preservative and a softening agent, and the raw paper based on the biomass conversion material is prepared. Most of the raw materials used by the raw paper are biomass conversion materials, so that the raw paper is green, environment-friendly and biodegradable, has better mechanical properties and water resistance, and has higher popularization and application values.

The invention discloses a manufacturing method of low-formaldehyde scratch-resistant veneer impregnated paper, which comprises the following steps: S1, raw paper pretreatment: selecting decorative raw paper with a fixed quantity of 60-120 g / m, and carrying out preheating treatment at 80-120 DEG C for 3-8 minutes so as to remove moisture in the paper and activate fiber surface activity; s2, preparation of a low-formaldehyde resin glue solution: mixing the matrix resin with the modifier, adding a curing agent and an auxiliary agent, and stirring and homogenizing to obtain the low-formaldehyde resin glue solution with the solid content of 45-65% and the free formaldehyde content of less than or equal to 0.1%. By adopting a modified low-formaldehyde resin system and combining with optimized process control, the formaldehyde emission of a final product can be stably controlled at E0 level or even higher standard and is far lower than the national standard, and the most stringent environmental protection requirement is met; the product is particularly suitable for high-end customized furniture, children rooms, hospitals, schools and other places with extremely high requirements for environmental protection and durability, and the market potential is huge.

The present application relates to the field of aqueous functional dispersion, disclose a kind of high solid low bubble calcium stearate aqueous dispersion and its preparation method, the aqueous dispersion includes calcium stearate 40~55 parts, deionized water 43~58 parts, emulsifying system 2.5~5.5 parts, dispersant 0.25~2.5 parts, no silicon defoamer 0.15~1.0 parts, viscosity reducing aid 0.5~2.5 parts, bactericide 0.1~0.5 parts by mass parts;Emulsifying system includes branched low bubble type fatty acid methyl ester ethoxylate sodium sulfonate, Span 60 and Tween 20.The present application is carefully selected and designed dispersant and auxiliary stabilizer, so that calcium stearate particles realize long-term stable suspension in aqueous system, avoid settlement and stratification, with excellent storage stability.Solve the problem that calcium stearate is easily aggregated, settled and foamed in aqueous system in the prior art.

An interleaf for glass sheets includes a substrate and a coating material deposited on the substrate wherein the coating material includes a dispersing medium, a water soluble surfactant, and a water insoluble defoamer.

This invention relates to a high-permeability carbon fiber composite paper and its preparation method. The high-permeability carbon fiber composite paper is obtained by casting a slurry onto a flat surface, drying it, and then heat-treating it. The slurry is prepared by mixing short-cut carbon fibers, water, binder, and dispersant as the main raw materials. The zero-shear viscosity of the slurry at 25°C is 2000–30000 mPa·s. The mass fraction of short-cut carbon fibers in the slurry is less than 5%. The length of the short-cut carbon fibers is 0.1–10 mm, and the proportion of short-cut carbon fibers with a length of 0.1–5 mm is more than 75%. The obtained high-permeability carbon fiber composite paper contains carbon fibers and resin carbon, which is formed by carbonization of the binder. In the high-permeability carbon fiber composite paper, the carbon fibers are freely oriented in three dimensions, resulting in a looser overlap between the carbon fibers in the prepared product, increasing the porosity of the carbon fiber composite paper, and enhancing gas permeability. Furthermore, the method of this invention uses a casting process, which allows for continuous production, is environmentally friendly, and has low cost.

A foam control agent and a method of using the foam control agent to control foam for paper and pulp production, wherein the agent comprises at least a branched alcohol.

The invention discloses a system for transferring a beverage paper cup into a seedling culture container, a preparation method and a conversion method of the system, a fluoride-free biodegradable barrier coating and barrier coating paper, and belongs to the technical field of green packaging and gardening seedling culture supplies. According to the system, a special polyhydroxyalkanoate barrier coating is applied to the inner wall of a paper cup, and a unique opening structure is matched, so that the function switching from a beverage container to a seedling culture container is realized. Compared with a commercially available polyethylene coated paper cup, according to the scheme, through the synergistic effect of the modified starch and the polysorbate, the more excellent barrier effect and processing toughness are achieved while the addition amount of the coalescing agent is reduced. In addition, the packaging material strictly follows the requirements of environmental protection compliance, all components do not contain fluorine-containing substances, and the environmental accumulation risk of the packaging material in the composting process is solved. Through the secondary utilization thought, the scheme not only reduces the resource investment in the seedling raising link, but also conforms to the industry development trend of green packaging and resource recycling in the future, and has remarkable social and economic benefits.

The application discloses a preparation process of a calendered paper with improved calendering firmness, and belongs to the papermaking technical field.The technical scheme is as follows: including pulp plate, chain plate conveying, pulper, unloading pool, defibrator, grinding machine, pulp forming pool, pulp forming pool pump, pre-coating pool, pre-coating pool pump, off-machine white water tank, flushing pulp pump, pressure screen, headbox, net part, pressing part, Yankee dryer, film transfer sizing machine, 1800 dryer, calender, winding part, rewinding, packaging and warehousing;100% bleached kraft pulp is used, the beating degree of the pulp forming is controlled to be 30-35SR, the adding amount of chemical reagents, such as talcum powder, sizing agent AKD, cationic corn starch and retention aid, a new surface sizing agent is added, and the moisture of the paper is controlled, so that the synergistic effect between various factors and conditions is achieved, the paper sheet and the PE film are more closely combined, and the problem of poor calendering in the production process of the calendered paper is solved.

The invention discloses a preparation process of a waterproof and antiskid paperboard. The preparation process comprises the following steps: premixing functional particles and waterproof wax according to a mass ratio of 4: 1; s2, grinding the mixture obtained in the step S1 in a three-roll grinder until the particle size is less than or equal to 15 microns to form a stable suspension; adding anti-skid resin and other auxiliaries into a dispersion tank according to a mass ratio for dispersion, and then adding the suspension obtained in the step S2 for continuous dispersion to obtain the water-based environment-friendly coating. A micro gravure coating machine is used, and paperboard coating is conducted on the water-based environment-friendly coating obtained in the step S3 under the setting of viscosity, wet coating weight and coating speed; the coated paperboard is dried for about 5 minutes in a natural environment, a composite functional layer with the thickness of 10-15 microns is formed, and finally the paperboard with the waterproof and anti-skid functions is obtained. By means of the mode, the waterproof and anti-skid paperboard overcomes the mutual exclusion relation between the waterproof performance and the anti-skid performance, and cooperation of the waterproof function and the anti-skid function of the surface of the paperboard is achieved.

The application discloses a beverage paper cup transformation seedling container system and a preparation method and a transformation method thereof, a fluorine-free biodegradable barrier coating and a barrier coating paper, and belongs to the technical field of green packaging and horticultural seedling raising supplies. The system applies a special polyhydroxyaliphatic acid ester barrier coating to the inner wall of the paper cup, and cooperates with a unique opening structure, so that the function switching from a beverage container to a seedling raising container is realized. Compared with a commercially available polyethylene coating paper cup, the scheme realizes more excellent barrier effect and processing toughness by the synergistic effect of modified starch and polysorbate while reducing the addition amount of film forming additives. In addition, the application strictly follows the environmental protection compliance requirements, and all components do not contain fluorine-containing substances, so that the environmental accumulation risk of the packaging material in the composting process is solved. Through the secondary utilization idea, the scheme not only reduces the resource input of the seedling raising link, but also conforms to the future industry development trend of green packaging and resource recycling utilization, and has remarkable social and economic benefits.

The present application relates to the technical field of papermaking, in particular to a kind of optical fiber coil fixed glue paper and its preparation method and application.The preparation raw material of the optical fiber coil fixed glue paper provided by the present application includes fiber and auxiliary agent;The fiber includes plant fiber 40-100%, natural cellulose fiber 0-40%, and chemical synthetic fiber 0-20% by mass percentage;The auxiliary agent includes wet strength agent and defoaming agent.The optical fiber coil fixed glue paper provided by the present application has low basis weight, has less influence on the thickness of optical fiber coil, has good glue absorption, has moderate strength, meets cutting requirements, is convenient to tear when winding coil, and because the fixed glue paper is relatively soft, can absorb part of the stress of solidified glue, has better temperature stability and anti-vibration performance, plays an important role in improving the overall precision and application level of optical fiber gyroscope.