737 results about "Cellulose fiber" patented technology

A non-woven battery separator and processes for forming the non-woven battery separator includes a fiber blend including cellulose fibers, microfibrillated fibers, and optionally polyester and / or aramid fibers. Also disclosed are batteries including the non-woven battery separator. During fabrication, the non-woven battery separator can be effectively dried at temperatures between 120°C and 180°C, which results in the fibers absorbing water when in use. Some battery electrolytes such as lithium hexafluorophosphate react with water to form hydrogen fluoride (HF), which can be corrosive and shorten battery lifecycles and affect performance. Absorbing water from the electrolyte increases the battery life cycle by reducing HF generation.

The invention belongs to the field of cellulose materials, and particularly relates to a functional cellulose fiber as well as a preparation method and application thereof. The functional cellulose fiber comprises a core structure formed by fiber raw materials and a skin layer structure formed by functional components, the skin layer structure covers the surface of the core structure, and the functional components are selected from one or more of silk fibroin, sodium alginate and soybean protein. The cellulose functional fiber with the skin-core structure is prepared, the core layer is a cellulose layer, high strength is provided, the skin layer is a functional layer, and good comfort is provided.

A multilayer packaging material includes a substrate formed of a cellulosic fiber-based material. The substrate has a first major surface and a second major surface opposite the first major surface. An oxygen barrier layer is formed of a PVOH material attached to the substrate, wherein the oxygen barrier layer is an innermost layer of the multilayer packaging material and further wherein the oxygen barrier layer is heat sealable. At least one moisture barrier layer is attached to the substrate, the moisture barrier layer selected from an inner moisture barrier layer disposed intermediate the substrate and the oxygen barrier layer and an outer moisture barrier layer disposed on the second major surface of the substrate. In further aspects, a packaging article, a method for making a multilayer packaging material, and a method for packaging a product are provided.

The invention relates to the technical field of spunlace non-woven materials, and particularly discloses a medical high-performance polylactic acid spunlace composite non-woven material and a preparation method thereof.The preparation method comprises the steps that firstly, polylactic acid fibers and crude natural cellulose fibers are modified, and a compatilizer PLGA-PEG-MDI segmented copolymer is prepared; the preparation process of the spunlace composite non-woven material comprises the steps that viscose is subjected to plasma activation, a compatilizer is sprayed to be loosened and mixed with modified polylactic acid fibers, cross lapping is carried out, polylactic acid added with the compatilizer is melt-blown to the surface of the lapping, and the spunlace composite non-woven material is obtained. And finally, paving the modified crude natural cellulose on the surface of the melt-blown layer to form the spunlace composite non-woven material with good antibacterial property, one-way wet permeability and degradability.

The invention relates to a machine (1) and to a corresponding method for producing an air-laid fibrous web (309). The machine (1) comprises: a) a raw material preparation system for a low-water preparation of cellulose-containing fibers in order to form individual fibers and / or fiber bundles (209); b) a dry-forming device (4) for dry-forming the individual fibers and / or fiber bundles (209) in an air stream in order to form a flat fiber fabric (300) on a forming belt (40); c) an application device (71) for applying a fluid, preferably water and / or a water-additive mixture, to the fiber fabric (300); d) a solidifying device (8) for solidifying the flat fiber fabric (300) by applying pressure in a press nip (80) when the fiber fabric (300) is guided through the press nip (80) on a press belt (41) onto which the fiber fabric (300) was previously transferred from the forming belt (40) in a transfer region (100); and additionally a fluid depositing device which is designed to then deposit the fluid on the press belt (41), the press belt (41) serving as an application device (71) for applying the fluid to the fiber fabric (300).

Permafrost thawing prevention may involve deploying a cooling geotextile onto a permafrost soil. The geotextile may include a biomass scaffold comprising natural plant-based fibers. The geotextile may further include a cellulose layer comprising cellulose fibers laminated onto the biomass scaffold such that the cellulose fibers are physically entangled with the plant-based fibers. The geotextile may further include a hydrophobic and biodegradable coating which defines at least one surface of the geotextile. The geotextile may be optically opaque, exhibits high solar reflectivity, and maintains high mid-infrared emissivity to enable passive radiative cooling.

A repulpable insulation material includes a batt formed of a mixture of thermoplastic binder fibers and cellulose fibers bound together by the thermoplastic binder fibers, the thermoplastic binder fibers making up about 0.5% to 25% by weight of the batt, the repulpable insulation material having a weight within a range from 1000 GSM to 1600 GSM, wherein subjecting the repulpable insulation material to a repulpability test produces greater than 85% fiber yield.

The invention relates to the technical field of antibacterial fiber membranes, and discloses a synthesis method of a halamine quaternary ammonium salt antibacterial cellulose membrane, which comprises the following steps: introducing a halamine quaternary ammonium salt antibacterial agent with double antibacterial functions on the surface of cellulose through surface grafting, and preparing the halamine quaternary ammonium salt antibacterial cellulose membrane by using hexamethylene diisocyanate as a cross-linking agent. Hydroxyl of the antibacterial agent is bonded with hydroxyl on the surface of cellulose, so that the halamine quaternary ammonium salt antibacterial agent is fixed on the surface of the fiber, the antibacterial property and the stability of the antibacterial agent are greatly improved, and the problem that the antibacterial agent is easy to lose in the use process is avoided; after multiple times of water washing, active chlorine of quaternary ammonium salt and halamine can still exert the efficient antibacterial effect, and cellulose fiber molecules are tightly combined and are not prone to being damaged due to the crosslinking effect; meanwhile, carboxyl in the molecular structure has a hydrophilic effect and is relatively good in compatibility with cellulose fibers, so that the hydrophilicity and the lasting antibacterial ability of the fiber membrane are further improved.

The invention discloses a cellulose fiber-based sandwich structure filter material for removing micro-plastics and a preparation method of the cellulose fiber-based sandwich structure filter material, and belongs to the field of micro-plastic filtration. The preparation method comprises the following steps: (1) uniformly mixing cellulose long fibers and cellulose short fibers, and then carrying out suction filtration to respectively prepare an upper-layer fiber membrane and a lower-layer fiber membrane; (2) preparing a covalent cross-linking mixture from cellulose nanofibers as a base material, a silane coupling agent, an amino-containing polymer and water; (3) coating a fiber membrane with the covalent cross-linking mixture, and assembling to obtain a sandwich structure; and (4) freezing the obtained sandwich structure, and drying at normal pressure to obtain the cellulose fiber-based sandwich structure filter material. The obtained cellulose fiber-based sandwich structure filter material can effectively filter multi-scale micro-plastics in a graded manner, can effectively filter various micro-plastics and micro-plastics in various real water samples, and provides a novel environment-friendly solution for micro-plastic pollution abatement.

The invention discloses a dry-method electrode preparation device and preparation method and application, and relates to the technical field of batteries, the dry-method electrode preparation device comprises a dry-method mixer and a roller press, the dry-method mixer comprises a feeding system and a fibrillation mixer, the feeding system comprises a cellulose feeding port and an electrode material feeding system, and the fibrillation mixer comprises a cellulose feeding port and an electrode material feeding system; the electrode material feeding system comprises a high-frequency vibrator, a driving wheel and a mixed material conveying belt, the fibrillation mixer comprises a material tank body, a tank body rotating system and a support, and a heating cavity is formed in the material tank body. According to the device, the uniformly mixed material and the cellulose can be mixed, the cellulose is fiberized to form a net structure, and the temperature required by pre-fiberization can be provided, so that the dry-method electrode membrane is prepared, and the method is low in manufacturing cost, good in fiberization degree, simple in process, low in cost and beneficial to large-scale production.

According to an example aspect of the present invention, there is provided a method comprising: in a mould, forming a multi-layered foamed fibrous structure from foamed fibrous compositions, wherein each of the foamed fibrous compositions comprises cellulosic fibres, water, air, and at least one foaming agent; dewatering the foamed fibrous structure; hot-pressing the dewatered structure, to obtain a moulded fibrous product, wherein said at least one foaming agent comprises at least one surface-active foaming agent and / or at least one polymeric foaming agent, and wherein at least one of the foamed fibrous compositions comprises a hydrophobic agent.

An absorbent retail paper product made up of cellulose fibers, and having a 1,3-dichloro-2-propanol concentration of non-detected amounts to 50 ppb as measured using the AOAC Official Method 2000.0150, a 3-monochloro-1,2 propanediol concentration of non-detected amounts to 1000 ppb as measured using the AOAC Official Method 2000.0150, a polyaminoamide-epihalohydrin concentration of non-detected amounts to 0.09% as measured by an “Adipate test”, and a cross direction wet strength of 80 to 200 n / m, wherein all of the cellulose fibers contained in the absorbent paper product are non-synthetic, cellulose fibers and the absorbent paper product is substantially free of formaldehyde.

There is provided a cable tie (100) comprising: a cord (101) having a first end (102) and a second end (103), which cord comprises cellulosic fibers; and a locking head (104) fixedly attached to the first end (102), said locking head (104) being adapted to receive the second end (103) and retain the cable tie (100) in a closed loop configuration, wherein said locking head (104) defines (a) wall(s) (105) that encircles a passage (106) having an inlet (107) and an outlet (108) and comprises a metal blade (109) that extends into the passage (106) for engaging the cord (101) and which is arranged to allow displacement of the cord (101) in a first direction towards the outlet (108) while preventing displacement of the cord (101) in a second direction towards the inlet (107).

According to an example aspect of the present invention, there is provided a method comprising: in a mould, forming a multi-layered foamed fibrous structure from foamed fibrous compositions, wherein each of the foamed fibrous compositions comprises cellulosic fibres, water, air and a foaming agent; dewatering the foamed fibrous structure; hot-pressing the dewatered structure, to obtain a moulded multi-layered fibrous product, in which method at least two different foaming agents are applied, wherein said at least two different foaming agents are selected, independently from each other, from the group of surface-active foaming agents and polymeric foaming agents.

A kind of high durability airport pavement quick repair composition and preparation method and quick repair method, by mass parts, quick repair composition includes cementitious material 80-130 parts, aggregate 90-120 parts, fiber material 10-20 parts, functional material 15-40 parts;Fiber material includes at least one of PVA fiber, cellulose fiber;Functional material includes polyacrylate, calcium carbonate, active titanium dioxide and self-repairing microcapsule;Self-repairing microcapsule, 15-50% of the total mass of functional material, including repair core layer, resin shell layer and the fiber repair layer adhered to the surface of resin shell layer, repair core layer includes inorganic repair mixture, resin shell layer includes toughened resin composition.The application utilizes the quick repair composition with excellent comprehensive performance and the quick repair method adapted, ensures that repair layer and old base form strong and tough interface synergistic effect, simultaneously realizes to crack high-efficiency trigger, environmental robust and long-acting stable self-repairing function.

A lighting device comprising an environmentally friendly material. The lighting device includes a support that supports a light emitting element and a reflector, the support may be fitted within a tube of a housing. The support and tube are formed from different cellulosic fiber materials. The housing at least partially accommodates the light emitting element and the reflector when the support is inserted into the tube.

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.

A piece of natural plant material is subjected to one or more chemical treatments to remove substantially all lignin therefrom, thereby allowing the extraction of delignified, cellulose-based fibers. For example, the natural plant material can be a grass, such as bamboo or gladiolus. Subsequent drying of the extracted fiber densifies the structure, yielding improved mechanical properties. In some embodiments, the extracted fibers can be used, either alone or in combination with other materials, as a structural material. For example, the extracted fibers can be embedded within, infiltrated with, coated by, or otherwise combined with a polymer or concrete to form a composite material.

The invention discloses a high-emissivity durable far-infrared functional fabric and a preparation method thereof. The high-emissivity durable far-infrared functional fabric is prepared from the following components in percentage by mass: 60-85% of bio-based polyester fibers, 10-30% of modified far-infrared ceramic composite powder and 5-15% of graphene grafted cellulose fibers, wherein the modified far-infrared ceramic composite powder comprises zirconium oxide, silicon carbide and tourmaline ternary core-shell structure particles, and the surface of the modified far-infrared ceramic composite powder is modified by a silane coupling agent KH560. The zirconium oxide / silicon carbide / tourmaline ternary core-shell structure ceramic powder is innovatively designed, the synergistic interaction of the bio-based polyester and the graphene fibers is combined, and the low-temperature plasma activation technology is adopted, so that the far infrared emissivity of the fabric at the wave band of 8-14 microns reaches 0.92 or above, and the performance retention rate is larger than 90% after the fabric is washed for 50 times. The far infrared emissivity of the fabric can be improved, and the function durability can be prolonged.

A method of manufacturing an article at least partially made of cellulose fibers comprises inserting a cellulose pulp comprising cellulose fibers and water into a mixing cavity; applying a high shear mixing action to the cellulose pulp using a high-shear mixer, such that a foam blend comprising cellulose fibers, water and air bubbles is created; inserting the foam blend into a mold cavity; and molding the article by heating the foam blend contained within the mold cavity.

The invention relates to a carding spunlace non-woven fabric of a composite elastomer and a preparation method thereof, the carding spunlace non-woven fabric of the composite elastomer is prepared from the elastomer and inelastic fiber by adopting a carding web-forming composite spunlace entanglement process, the elastomer is one or a combination of a polyolefin elastomer, a polyurethane elastomer and a spandex elastomer, and the inelastic fiber is one or a combination of the polyolefin elastomer, the polyurethane elastomer and the spandex elastomer. The non-elastic fibers are one or a combination of cellulosic fibers, polyester fibers and polypropylene fibers, and are arranged into a three-dimensional net structure in a carding net forming manner, so that the prepared carding spunlace non-woven fabric has transverse elasticity. According to the product prepared by the invention, the elastomer is used as a skeleton structure and is compounded with inelastic fibers such as the cellulosic fibers, the polyester fibers and the polypropylene fibers, so that the transverse tensile elasticity of the material is realized while better hygroscopicity, air permeability and softness are maintained.

The application relates to the technical field of fabrics, in particular to a fabric based on protein fiber combined with natural fiber and a preparation method thereof, which is prepared by wet core-sheath composite spinning of a down protein sheath layer and a natural cellulose core layer; the core layer is natural cellulose fiber, and the total mass of the functional fabric is 70-90%; the balance is the sheath layer formed by cross-linking and solidification of a down protein solution; and the sheath layer is loaded with nano titanium dioxide; the introduced natural cellulose core layer is the main skeleton component of the fabric, selects natural fibers such as bamboo pulp cellulose and cotton linter pulp, and provides basic mechanical support for the fabric. The abandoned down resource is used to prepare protein fiber, which is combined with natural cellulose fiber to construct a composite fiber with a functional sheath layer and a mechanical core layer. The technical scheme solves the problems of insufficient sun protection, insufficient antibacterial performance and single mechanical performance of traditional natural fiber fabrics.

To provide a fine fibrous cellulose-containing substance that exhibits excellent dispersion stability in every use mode.SOLUTION: A fibrous cellulose-containing substance contains fibrous cellulose having a fiber width of 1,000 nm or less and at least one kind selected from organic acid salts and / or inorganic acid salts. The content of the at least one kind selected from organic acid salts and inorganic acid salts is 1-1,000 pts.mass to 100 pts.mass of the fibrous cellulose.SELECTED DRAWING: None

A drainage-optimized additive composition for papermaking is disclosed. The composition comprises an aqueous media and a glyoxalated polyacrylamide (gPAM) resin having a weight average molecular weight (Mw) of at least about 5 MDa. The composition comprises from about 1.95 to about 2.45 wt. % of the gPAM resin. A method of preparing the composition is also disclosed, and comprises preparing a cationic acrylamide (cAM) prepolymer having at least one predetermined property, and selectively glyoxalating the cAM prepolymer by controlling the concentration of the cAM prepolymer in the aqueous media during glyoxalation in relation to the predetermined property. The method may be carried out in situ during a papermaking process (i.e., as an on-site method). A process of forming paper with the composition also disclosed, and comprises combining the composition with the aqueous suspension of cellulosic fibers, forming the cellulosic fibers into a sheet, and drying the sheet to produce a paper.

The present invention provides a pulp sheet for producing fluff pulp that has excellent deodorizing properties, good crushability, and easily recovers its bulk after compression. [Solution] A pulp sheet for producing fluff pulp is prepared by blending (A) softener kraft pulp, (B) metal ion-containing cellulose fibers having ionic substituents and containing ions of one or more metal elements selected from Ag, Au, Pt, Pd, Ni, Mn, Fe, Ti, Al, Zn, or Cu, and (C) softener, such that (C) is 0.1 to 50 parts by mass per 100 parts by mass of the total of (A) and (B).

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.

A roofing material is provided having an asphalt-coated mat or felt made up of or in combinations of fiberglass, polyester, nylon, cotton, cellulosic fibers or materials, polyethylene, polypropylene, co-polymers, melamine, phenolic, acrylics, polycarbonate, carbon fiber, clay, metallic in woven, non-woven, strands or sheets, styrene compounds, rubber, silk, leather, or wool in a woven, non-woven, or solid form. The surfacing materials can be made up of or in combination minerals, plastic particles or film, metal particles or film, cement particles, clay particles, paints, coatings, glass, ceramics, wood, wood fiber, or composite materials.

An object of the present invention is to provide rubber-bonded cellulose fibers that are less likely to cause an increase in viscosity or melt viscosity when added to various resins. Rubber-bonded cellulose fibers that solve the above problem contain cellulose fibers; a plurality of rubber particles disposed on surfaces of the cellulose fibers and having an average particle size of 300 nm or less; and a silane compound that bonds the cellulose fibers and the rubber particles.

An electrolyte membrane containing fine cellulose fibers, polyvinyl alcohol, and a crosslinking agent.

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.