324 results about "Regenerated cellulose" patented technology

This invention relates to a biomass-based gel electrolyte membrane, its preparation method, and its application. The method includes preparing regenerated cellulose using a sol-gel method, adding sodium alginate and zinc chloride solution, and rapidly constructing a biomass-based composite gel electrolyte with a dual-network structure through metal ion coordination crosslinking. The biomass-based gel electrolyte membrane is obtained by adsorbing an aqueous electrolyte onto a gel membrane with a dual-network structure. This gel electrolyte membrane is then assembled with a zinc anode and a vanadium pentoxide cathode to obtain a zinc-ion battery. This invention features a simple method, readily available and inexpensive raw materials, easy product molding, convenient operation and control, and is conducive to industrial production. The prepared composite gel electrolyte membrane has a dual-network structure, exhibiting good stability, liquid retention capacity, and ionic conductivity, and demonstrates excellent cycle capacity and lifespan when applied to aqueous zinc-ion batteries.

The invention provides a waste cotton fabric synchronous decolorization and cellulose dissolution regeneration method based on a deep eutectic solvent, and relates to the technical field of waste cotton fabric recovery treatment. According to the method disclosed by the invention, the in-situ decoloration of the dye in the cotton fabric and the efficient dissociation of a cellulose hydrogen bond network are synchronously realized under the process condition of 30-100 DEG C by selecting the specific eutectic solvent, so that the decoloration and the dissolution are cooperatively completed in the same step; and the problem of fiber damage or incomplete decoloration caused by condition conflict in step-by-step treatment is effectively avoided. On the basis, the dye and the eutectic solvent are synchronously replaced and separated in a coagulating bath by combining wet spinning, so that the process is simplified, and the high mechanical property of the regenerated cellulose fiber is realized. Besides, the dye and the deep-eutectic solvent in the process can be recycled, a resource full-circulation green technical path is formed, and a solution with a wide application prospect is provided for high-valued regeneration of the waste textiles.

The invention relates to the technical field of papermaking, in particular to a preparation method of high-definition electronic screen protection paper. According to the method, regenerated cellulose fibers serve as main raw materials, functional composite fibers of a core-shell structure are constructed, a core layer is the regenerated cellulose fibers, a shell layer is a polypyrrole / graphene composite conductive layer, and the lasting antistatic performance is achieved; meanwhile, the surface-modified nano silicon dioxide aerogel particles are introduced, so that the optical performance and the mechanical strength are improved; then compounding with polyimide fibers modified by a silane coupling agent, adding a bio-based wet strength agent and a fluorocarbon defoaming agent, and carrying out the steps of plasma pretreatment, pulping, on-net papermaking, controllable drying, magnetron sputtering surface treatment and the like to prepare the protective paper. The obtained protective paper has the characteristics of being ultrathin, high in strength, high in light transmittance, lasting in antistatic property and the like, and is suitable for protection of high-end liquid crystal display screens and OLED screens.

The invention relates to the technical field of medical materials, and discloses degradable medical gauze based on plant fibers and a production process of the degradable medical gauze. 0.5 to 2.0 parts of tannic acid; 0.1 to 1.0 part of boric acid; and 100 parts of a 1-allyl-3-methylimidazole chloride salt. The production process comprises the following steps: dissolving the raw materials in an ionic liquid to form a homogeneous solution, coating to form a film, then carrying out solidification regeneration treatment in an alcohol-water solution, controlling the residual quantity of the ionic liquid in a final product, and finally drying. In the solidification step, part of ionic liquid residues are controlled to serve as an internal plasticizer, meanwhile, an antibacterial component tannic acid is embedded in a cellulose matrix, long-acting and stable functions are achieved, the problems that a traditional regenerated cellulose material is rigid, and functional components are prone to falling off are solved, and the service life of the regenerated cellulose material is prolonged. The obtained gauze has biodegradability, flexibility and long-acting antibacterial property at the same time.

The invention relates to the field of functional fabrics, in particular to an antistatic warm-keeping rabbit wool silk fabric. Which comprises a body, the body comprises a surface layer and a bottom layer connected with the surface layer, and is characterized in that the surface layer comprises 40-50% of regenerated cellulose fibers, 8-15% of spandex, 2-5% of rabbit wool and the balance acrylic fibers; the fiber content of the bottom layer is as follows: 22-30% of regenerated cellulose fiber, 3-5% of silk, 8-15% of spandex and the balance of acrylic fiber. The bottom layer containing silk and the surface layer containing rabbit wool are formed, so that the fabric has better antistatic property, heat preservation property and pilling resistance.

The invention discloses a non-woven fabric made of Juncao fibers, and belongs to the technical field of textiles. The non-woven fabric made of the Juncao fibers is obtained by opening and mixing modified Juncao regenerated cellulose fibers, carding to form a net and needling and reinforcing; the modified pennisetum sinese regenerated cellulose fiber is prepared by the following steps: dipping dried pennisetum sinese pulp, squeezing, carrying out graft copolymerization on the squeezed dried pennisetum sinese pulp, 2-acrylamide-2-methylpropanesulfonic acid and benzaldehyde PEG acrylamide under the catalysis of ceric ammonium nitrate, dissolving, then adding chamomile essential oil microcapsules, reacting, and spinning. The chamomile essential oil microcapsule is prepared by the following steps: dispersing chamomile essential oil into a continuous phase containing an allyl monomer by an SPG membrane emulsification method to form a microemulsion, and preparing the chamomile essential oil microcapsule by combining an interfacial polymerization method; wherein the allyl monomer is prepared from methacrylic acid, methyl methacrylate, pentaerythritol tetraacrylate and N-(4-acetylphenyl) prop-2-acrylamide.

The invention belongs to the technical field of high polymer materials and textile fibers, and particularly relates to a method for preparing regenerated cellulose short fibers by an ionic liquid method, which comprises the following steps of: (1) premixing crushed pulp and ionic liquid to form slurry; (2) feeding the slurry obtained in the step (1) into a double-screw extruder, and dissolving to obtain a cellulose spinning solution; (3) conveying the cellulose spinning solution obtained in the step (2) into a coagulating bath to obtain nascent fibers; and (4) stretching, washing, oiling, drying, curling and cutting the nascent fiber obtained in the step (3) to obtain the regenerated cellulose short fiber. In the regenerated cellulose short fiber preparation process, a solvent recovery system is adopted for ionic liquid recovery. The preparation method of the regenerated cellulose short fiber is efficient and mild in dissolution process, simple and energy-saving in solvent recovery, and the obtained fiber is excellent in mechanical property.

A filter material for manufacturing a segment of a smoking article is described. The filter material includes a hydro-entangled nonwoven, which includes fibers. The fibers are selected from the group consisting of pulp fibers, fibers of regenerated cellulose and mixtures thereof. These fibers are contained in the nonwoven in an amount of 50% to 100% of the mass of the hydro-entangled nonwoven. The nonwoven is in the form of a web, has a longitudinal direction in the running direction of the web, a cross direction orthogonal thereto and lying in the plane of the web and a thickness direction orthogonal to longitudinal direction and the cross direction. The nonwoven is shaped to have a wave structure in the plane formed by the cross direction and the thickness direction with a wave height from 50 μm to 1000 μm and a wave length from 150 μm to 5000 μm.

The invention discloses a preparation method of gelatin-based hemostatic particles containing oxidized regenerated cellulose, the hemostatic particles are composed of gelatin, oxidized regenerated cellulose and polyethylene glycol, the gelatin is crosslinked by EDC / NHS to control the degradation time, a small amount of oxidized regenerated cellulose is supplemented to improve the hemostatic ability, and a small amount of polyethylene glycol is supplemented to improve the hydrophilicity. The prepared hemostatic particles are high in hemostatic speed, short in degradation time and excellent in biology.

An aerosol-generating article (10)(100)(1000) comprises: an aerosol-generating substrate (12)(112)(1004); a downstream element (42)(150)(1008) provided downstream of the aerosol-generating substrate (12)(112)(1004) and in axial alignment with the aerosol-generating substrate, the downstream element comprising a cellulosic filtration material. The fibrous material comprises a plurality of regenerated cellulose fibres selected from one or more of viscose fibres, modal fibres, Lyocell fibres and viscose rayon fibres; or a plurality of natural fibres selected from one or more of flax fibres, hemp fibres, jute fibres, kenaf fibres, ramie fibres, abaca fibres, phormium fibres, sisal fibres, coir fibres, cotton fibres, and kapok fibres. The cellulosic fibrous material further comprises an additive coating applied to the plurality of regenerated cellulose or natural fibres, the additive coating comprising at least 5 percent by weight of exogenous lignin on a dry weight basis.

The invention provides a multifunctional composite fabric and a preparation method thereof, and relates to the technical field of composite fabrics, the multifunctional composite fabric comprises warp yarns and weft yarns, the warp yarns are synthetic fibers I, and the weft yarns are composite yarns; the composite yarns comprise conductive silk yarns and composite yarns covering the conductive silk yarns, and the composite yarns comprise regenerated cellulose fibers and synthetic fibers II; the quantity ratio of the regenerated cellulose fibers to the synthetic fibers II is (25-35): 1. The composite yarn coating layer can protect the conductive filaments from being damaged in the weaving and using processes, and the overall wear resistance of the fabric is improved; the weft yarns and the warp yarns which are composed of the regenerated cellulose fibers and the synthetic fibers II in a specific proportion are matched, so that the fabric has excellent wear resistance and soft hand feeling, and the technical problems that in the prior art, the compatibility of different fibers is poor, the hand feeling of the fabric is rigid, and the wear resistance is reduced are solved; the fabric can be widely applied to the fields of clothes, home textiles and the like.

The present application relates to a kind of preparation technology of carbon nanotube and its application, including the following steps: first, binary aromatic amine is diazotized to obtain acidic diazonium salt solution;Anionic regenerated cellulose is dynamically immersed in the diazonium salt solution of binary aromatic amine at room temperature;The cellulose regenerated fiber treated by the above steps is drawn and dynamically immersed in sodium hydroxide or sodium acetate aqueous solution;The cellulose regenerated fiber treated by the above steps is drawn into the red-hot iron pipe above 700 DEG C;Then the obtained carbon nanotube is washed, dried, drawn, oiled;Finally, the finished product super-long carbon nanotube is obtained by winding into a roll.The whole preparation process is continuous, and the process is simple, low cost, high yield, high production efficiency, and the carbon nanotube has single conductive property, without subsequent separation, in addition, fibers can exist independently, and will not affect the use effect because of agglomeration together.

To provide a resin composition, a pellet containing the same, and a molded article, enabling a molded article to achieve superior flowability during molding and excellent mechanical properties.SOLUTION: A resin composition comprises a thermoplastic resin (A) including a polyacetal resin (a1) having a melt flow rate (190°C, 2.16 kg load) of 20 to 60 g / 10 min, and regenerated cellulose fibers (B). It is preferable that the regenerated cellulose fibers (B) include solvent-spun regenerated cellulose fibers. A proportion of the thermoplastic resin (A) relative to the total mass of the resin composition is preferably 30 to 95 mass%, and a proportion of the regenerated cellulose fibers (B) is preferably 5 to 70 mass%.SELECTED DRAWING: None

This invention discloses a method for producing a high-elasticity fabric interwoven with diacetate and regenerated cellulose fibers, relating to the field of apparel fabric technology. The technical solution includes: fabric weaving, singeing, desizing, pre-setting, setting, dyeing, opening, drying, post-setting, padding, and pre-shrinking; wherein, dyeing includes dyeing of diacetate fibers, post-dyeing treatment, and dyeing of regenerated cellulose fibers. The high-elasticity fabric interwoven with diacetate and regenerated cellulose fibers produced by this invention has high elasticity, overcomes the defects of existing technologies, ensures the strength of diacetate fibers, improves the fabric's color fastness and elasticity, and significantly reduces fingerprints, color creases, and aurora prints.

A novel environment-friendly building facade construction method comprises the steps that a modular prefabricated outer vertical panel is provided, the prefabricated outer vertical panel is made of a recyclable composite material, the composite material comprises, by weight, 60%-70% of regenerated cellulose, 20%-30% of environment-friendly resin and 5%-10% of a nano reinforcing agent, and a porous micro-nano structure is preset on the surface of the prefabricated outer vertical panel; the surface self-cleaning performance is enhanced; a light alloy frame is installed on the base face of the building outer wall, the light alloy frame is made of magnesium-aluminum alloy materials and fixed to the base face of the building outer wall through embedded expansion bolts, and the surface of the frame is coated with an environment-friendly anti-corrosion coating. According to the intelligent mechanical arm system, the multi-axis mechanical arm, the laser positioning module and the pressure sensor are integrated, the laser positioning module calibrates the installation position of a panel in real time through 532-nanometer green laser, it is guaranteed that the installation error is smaller than 0.5 mm in combination with precise control over 50-200-Newton contact force through the pressure sensor, and the construction precision is improved.

The invention discloses a renewable ramie fiber / wool blended fabric and an environment-friendly dyeing and finishing process thereof, and belongs to the technical field of textile fabrics. The renewable ramie fiber / wool blended fabric is prepared from, by mass, 30%-50% of renewable ramie fibers, 25%-40% of wool fibers, 15%-30% of regenerated cellulose fibers and 0.5%-3% of functional auxiliaries, the ramie fibers are derived from recycled products, and the auxiliaries contain antibacterial agents and anti-wrinkle agents. During preparation, fibers are subjected to ultrasonic pretreatment, spinning and weaving to obtain grey cloth; the dyeing and finishing adopts biological enzyme desizing, hydrogen peroxide bleaching, natural vegetable dye dyeing and formaldehyde-free color fixation. The antibacterial rate of the fabric is larger than or equal to 90%, the anti-wrinkle recovery angle is larger than or equal to 280 degrees, the COD of dyeing and finishing wastewater is smaller than or equal to 400 mg / L, formaldehyde residues are avoided, energy consumption is low, excellent performance and environmental friendliness are both considered, and the method is suitable for the field of spinning.

The application discloses a preparation method of a humidity-responsive cellulose nanocrystal structural color thin film and belongs to the field of humidity-responsive color-changing materials. Regenerated cellulose nanocrystals with different length-diameter ratios are prepared by controlling the time of sulfuric acid hydrolysis, and a humidity-responsive structural color thin film with uniformity and different colors is obtained by regulating and controlling self-assembly. The prepared humidity-responsive structural color thin film solves the problem of phase separation caused by color regulation of a conventional polymer and the difficulty in forming a uniform chiral nematic phase structure. The humidity-responsive performance is good in repeatability. The efficient recycling of waste cotton is realized, and the application is conducive to the recycling of waste resources.

A method for manufacturing a mask pack sheet comprises: a step of preparing a biodegradable hollow fiber and a regenerated cellulose-based non-woven fabric comprising the biodegradable hollow fiber; a step of establishing optimal conditions by varying a mixing ratio of yarns and hydroentanglement conditions for the prepared non-woven fabric, the optimal conditions comprising a liquid absorption of 17-18 g / g, a liquid retention of 13-14 g / g, and a moisture retention rate of 60-70%; and a step of manufacturing with a tensile strength of 60-70 N / 1.5 cm² in a first direction, an elongation of 10-20%, a tensile strength of 9-20 N / 1.5 cm² in a direction perpendicular to the first direction, an elongation of 75-90%, and a thickness of 0.2-1 mm, wherein the step of manufacturing with a thickness of 0.2-1 mm comprises the steps of: mixing 60-80% of general regenerated cellulose fibers and 20-40% of biodegradable hollow fibers; forming a first non-woven fabric sheet by combing and loosening the mixed first fibers in a first direction; forming a second non-woven fabric sheet identical to the first non-woven fabric sheet by combing and loosening the mixed first fibers in the first direction; disposing the second non-woven fabric sheet on the first non-woven fabric sheet in a second direction perpendicular to the first direction; forming a mask pack sheet by hydroentangling the first non-woven fabric sheet and the second non-woven fabric sheet in a state in which the first and second non-woven fabric sheets are perpendicularly disposed; and drying and winding the mask pack sheet formed by hydroentangling.

The invention discloses a one-way moisture-conducting anti-reverse-osmosis multi-layer composite sanitary material and a preparation method thereof, and relates to the technical field of sanitary materials. The preparation method comprises the following steps: opening and carding a fiber raw material to respectively obtain three layers of fiber webs, carrying out cross lapping, then carrying out spunlace reinforcement and drying, spraying a hydrophobic antibacterial finishing agent on one side, far away from a middle layer, of a surface layer of each fiber web, spraying a hydrophilic antibacterial finishing agent on one side, far away from the middle layer, of an inner layer of each fiber web, curing, drying, and then carrying out hot rolling to obtain the multi-layer composite sanitary material. The fiber raw materials are polylactic acid fibers and regenerated cellulose fibers; the part ratio of the polylactic acid fibers to the regenerated cellulose fibers in the surface layer is (80-90): (10-20), the part ratio of the polylactic acid fibers to the regenerated cellulose fibers in the middle layer is (40-50): (50-60), and the inner layer is single regenerated cellulose fibers.

[Problem] Provided are: a method for producing a regenerated cellulose-derived cellulose dispersion or a regenerated cellulose-derived cellulose molded body capable of suppressing swelling in alkali and deterioration of whiteness over time; regenerated cellulose-derived cellulose beads; and a cosmetic material. [Solution] This method comprises: a pulverization step in which a regenerated cellulose is used as a dispersion raw material and the dispersion raw material is pulverized; a depolymerization step in which sodium hypochlorite is added to the pulverized raw material obtained in the pulverization step to reduce a degree of polymerization of the pulverized raw material; a pH adjustment step in which a pH-adjusted cellulose is obtained through a first pH adjustment operation for adjusting the pH of the depolymerized cellulose obtained in the depolymerization step to an alkaline pH of at least 9, a second pH adjustment operation for adjusting the pH of the depolymerized cellulose to an acidic pH of at most 6, and a neutralization operation for neutralizing the depolymerized cellulose; a washing step in which the pH-adjusted cellulose is washed; and a micronization step in which the pH-adjusted cellulose after the washing step is micronized to obtain a cellulose dispersion.

The application discloses a dyeing boosting agent and a low-temperature salt-free dyeing method for bio-based PLA / regenerated cellulose fiber blended fabric, and relates to the technical field of textile dyeing. A synergistic cross-linking modification system is constructed by using a bio-based small-molecule phenol with double functional groups and a high-density amino polymer. The fabric is pretreated and immersed for modification, a stable ion cross-linking adhesion layer is formed on the surface of the fiber, and then low-temperature dyeing of the electrolyte-free reactive dye is carried out. The process adopts a one-bath one-step method, does not need high temperature, high salt and reduction cleaning procedures, is simple in process, low in carbon and environmentally friendly, can realize synchronous dyeing and uniform color of PLA and regenerated cellulose fiber, effectively improves the fabric dyeing rate and color fastness, and significantly improves the ultraviolet resistance of the product. The application solves the problems of poor uniformity, low color fastness and large pollution existing in the traditional dyeing process, and is suitable for green and efficient production of bio-based blended fabric.

The aerosol generating article (10)(100)(1000) comprises an aerosol generating substrate (12)(112)(1004) and a downstream element (42)(150)(1008) provided downstream of the aerosol generating substrate (12)(112)(1004) and axially aligned with the aerosol generating substrate, the downstream element comprising a cellulosic filtration material. The fibrous material comprises a plurality of regenerated cellulose fibers selected from one or more of viscose fibers, modal fibers, lyocell fibers, and viscose rayon fibers, or a plurality of natural fibers selected from one or more of flax fibers, hemp fibers, jute fibers, kenaf fibers, ramie fibers, abaca fibers, phormium fibers, sisal fibers, coir fibers, cotton fibers, and kapok fibers. The cellulosic fibrous material further comprises an additive coating applied to multiple regenerated cellulose or natural fibers, the additive coating containing at least 5% by weight of exogenous lignin on a dry weight basis.

The invention discloses a synergistic preparation method and application of carboxylated cellulose nanocrystals and regenerated cellulose, and belongs to the technical field of cellulose nanomaterial preparation. The synergistic preparation method of the carboxylated cellulose nanocrystal and the regenerated cellulose comprises the following steps: carrying out dipping treatment on a cellulose raw material in a Lewis acid solution, then carrying out solid-liquid separation, and collecting a solid-phase component to obtain cellulose slurry; dispersing the cellulose slurry in a polycarboxylic acid solution, reacting, and then filtering and collecting a solid product; treating the solid product by a method I or a method II; the method I comprises the following steps: carrying out separation treatment on the solid product to obtain carboxylated cellulose nanocrystals and regenerated cellulose; and the method II comprises the following steps: washing the solid product, and then carrying out suction filtration to obtain the holocellulose composite membrane.

A yarn comprising a filament core and a staple fiber sheath comprising or consisting of at least 95% by weight of a mixture of a first fiber and a second fiber wherein the first fiber is a natural cellulose fiber and the second fiber is a regenerated cellulose fiber. The weight ratio of the first fibers to the second fibers is in the range of 70 / 30 to 80 / 20, preferably the ratio is about 75 / 25, the average length of the fibers of the sheath is in the range of 10 to 25 mm, preferably in the range of 12 mm to 20 mm, the 5% (n) index of the fibers of the sheath is between 25 mm and 40 mm, preferably between 28 and 36 mm, more preferably between 30 and 34 mm; the sheath has a staple fiber content, SFC (n), between 30% and 70%, preferably between 40% and 60%; and the filament core comprises a plurality of polyester filaments.

The present invention relates to compressed hemostatic tablets or forms comprising a fibrous nonwoven oxidized cellulose (OC or ORC) multilayer material compressed into a shape-stable tablet, further comprising a calcium salt, and capable of rapidly expanding upon contact with blood or plasma. The compressed forms may further comprise multi-arm PEG-SG and are dimensionally stable, preferably in terms of length and width, for at least 48 hours after compression. In some embodiments, upon contact with blood, the compressed forms expand to 1.5 to 5 times their tablet length in 5 seconds, to 2 to 6 times their tablet length in 20 seconds, and to 3 to 6 times their tablet length in 5 minutes. The compressed forms are effective for hemostasis in heparinized blood.

The present invention provides an anti-adhesion and / or slippage composition comprising mercerized cellulose particles and / or regenerated cellulose particles.

The application discloses a regenerated cationic cellulose-based composite filter membrane and a preparation method and nanometer plastic removal application thereof, and belongs to the technical field of regenerated cellulose water treatment filter materials. In the application, a sodium hydroxide-urea-thiourea ternary system is used to fully dissolve cellulose, the cellulose is modified by 2,3-epoxypropyl trimethylammonium chloride cation, a PVDF membrane is used as a base, and a hydrophilic composite filter membrane is prepared by vacuum filtration and loading of a cationized cellulose layer. The preparation process is mild, and the defects of the traditional cellulose membrane, such as insufficient dissolution, uneven pore size and poor screening precision, are solved. The filter membrane surface is positively charged, the hydrophilicity is greatly improved, the water contact angle is only 39°, the particle size of 50-500 nm carboxylated nanometer plastics can be efficiently intercepted, the removal efficiency of 100 nm polystyrene nanometer plastics reaches 97.01%, and the water flux is excellent. The process is green and low-cost, can remove polystyrene, polymethyl methacrylate and polyvinyl chloride nanometer plastics in a wide range, and has a good engineering application prospect in the field of deep treatment of water body nanometer plastic pollution.

This invention relates to a component for an aerosol supply article. The component includes an aerosol generating material and an aerosol forming agent material, the aerosol generating material comprising a fibrous aggregate formed from regenerated cellulose, and the aerosol forming agent material comprising approximately 5% to approximately 60% by weight of the aerosol generating material. The invention also relates to an article including the component, and an aerosol supply system including the article. Furthermore, the invention relates to a method of forming the component.

This invention discloses a method for recycling cellulose-based waste textiles and using them to prepare functional materials. The preparation method includes the following steps: S1, firstly, the cellulose-based waste textiles are loosened and mixed with cellulose solvent and carbon black to obtain a cellulose solution. The flocculent raw material is then mixed with a pre-cooled low-temperature solvent system and a functional filler. The low-temperature solvent system contains alkali, urea, and water, and the functional filler is carbon black. The mixture is prepared under low-temperature conditions of 0°C to -20°C. This invention controls the alkali concentration to 4-10%, the temperature to 0-20°C, and the carbon content to 0.15%-1%, which maximizes the dissolution of the cellulose solution and the carbon dissolution in the cellulose. The cellulose solution obtained by this method can be reused and remanufactured in a simple and low-cost manner, including obtaining regenerated cellulose fibers, cellulose films, and cellulose plastics through wet spinning, wet film formation, and casting. The preparation method provided by this invention is simple to operate and easy to industrialize.

[Problem] To provide a biodegradation accelerator for a biodegradable resin to accelerate biodegradation of the biodegradable resin.[Solution] A biodegradation accelerator for a biodegradable resin, the biodegradation accelerator containing a regenerated cellulose, in which the regenerated cellulose is selected from the group consisting of fibers, molded products including films, powders, cotton-like objects, and intermediate molded bodies, and a biodegradation speed for a biodegradable resin is accelerated compared to a case where the biodegradation accelerator for a biodegradable resin is not used.