723 results about "Natural fiber" patented technology

The invention discloses a preparation method of a natural fiber prepreg with an improved impregnation effect, and relates to the technical field of composite material preparation, the method comprises the following steps: carrying out synergistic modification through fiber surface plasma activation and silane grafting, and combining a gradient pressure-temperature coupling impregnation system and ultrasonic-assisted permeation to prepare the natural fiber prepreg with the improved impregnation effect. And gradient filling and interface chemical bonding strengthening of the resin in the fiber bundle are realized. The core process comprises the following steps: pretreating fibers to improve surface energy and roughness, introducing a reactive diluent and a block copolymer into a resin system to regulate and control viscosity and transport capacity, constructing a pressure gradient by a multi-stage compression roller to drive resin to permeate into a bundle core, promoting uniform impregnation by infrared temperature control and ultrasonic cavitation, and finally obtaining uniform resin distribution and porosity lt. The interlayer shear strength is gt; and the high-performance prepreg is stable in batch under the pressure of 45 MPa. Reliable technical support and process guarantee are provided for large-scale engineering application of the high-performance natural fiber composite material.

A package of one or more absorbent articles is provided. The package comprises a package material comprising natural fibers. The package comprises a plurality of panels comprising a consumer-facing panel. The package is sealed such that the one or more absorbent articles are enclosed therein. The package material exhibits a HuBa value of greater than about 5.3 hours, according to the HuBa Test. The package is recyclable. The package comprises a vertical side seal having a side seal strength. The side seal strength is greater than about 5.1 N / 15 mm and less than about 15 N / 15 mm, according to Seal Tensile Strength Test.

A package of one or more absorbent articles is provided. The package comprises a package material comprising natural fibers. The package comprises a plurality of panels comprising a consumer-facing panel. The package is sealed such that the one or more absorbent articles are enclosed therein. The package material exhibits a HuBa value of greater than about 5.3 hours, according to the HuBa Test. The package is recyclable. The package comprises a vertical side seal having a side seal strength. The side seal strength is greater than about 5.1 N / 15 mm and less than about 15 N / 15 mm, according to Seal Tensile Strength Test.

The present disclosure is directed to a package configured to receive one or more absorbent articles. The package comprises a package material comprising natural fibers. The package comprises a plurality of panels comprising a consumer-facing panel and a back panel having one or more wicket holes in a portion thereof. The package is configured to be sealed such that the one or more absorbent articles are enclosed therein. The back panel comprises a first chamfered side edge and a second chamfered side edge in an area proximate to the one or more wicket holes. The package material comprises a barrier film layer disposed on an inner surface of the package material. The package is recyclable.

The utility model discloses a yarn and knitted fabric for efficient short-process embedded spinning knitting, and relates to the technical field of spinning. Comprising a yarn core, outer wrapping part fibers are connected to the surface of the yarn core in a winding mode, and raw material fibers of the outer wrapping part fibers are one or a mixture of two or more of natural fibers, artificial fibers and synthetic fibers; the raw material fiber of the yarn core is pure yarn or blended yarn of filaments or short fibers.

A package of one or more absorbent articles, wherein the one or more absorbent articles are sealed within the package is described. The package has a plurality of panels and a top fold line. The plurality of panels includes a consumer-facing panel and a top panel disposed superjacent to the consumer-facing panel. Each of the plurality of panels has an inner surface and an outer surface. The top fold line is disposed between the consumer-facing panel and the top panel, and the top fold line is colinear, at least in part, with a cross-wise crease. And the package material has natural fibers and has a basis weight of between 60 gsm to 120 gsm, more preferably between 65 gsm to 105 gsm, or most preferably between 70 gsm to 90 gsm, as determined via ISO 536 as modified herein.

The invention discloses an environment-friendly EVA (Ethylene Vinyl Acetate) material and belongs to the technical field of polymer composite materials. The environment-friendly EVA material is prepared from the following components: EVA resin, a bio-based dynamic cross-linking agent DBX-200, a natural fiber reinforced network, a hybrid flame-retardant filler, a bio-based plasticizer, zinc oxide, zinc stearate and an antioxidant. The bio-based dynamic cross-linking agent DBX-200 is introduced to replace a traditional toxic peroxide cross-linking system, pollution-free cross-linking is achieved, and the material is endowed with a self-repairing function. The natural fiber reinforced network is composed of silane coupling agent modified bamboo fibers and carboxylated nanocellulose, a multi-stage reinforced structure is formed, and the mechanical property is remarkably improved. The hybrid flame-retardant filler coats Mg (OH) 2 / HNTs through dopamine, so that synergistic flame retardance of a gas phase and a condensed phase is realized; the bio-based plasticizer is compounded by acetylated tributyl citrate and epoxidized cashew nut oil, and the plasticizing efficiency and the migration resistance are both considered. The material has the characteristics of high mechanical property, excellent flame retardance and environmental friendliness, and is suitable for the fields of shoemaking and the like.

The invention relates to the technical field of plastic bags, in particular to an antibacterial degradable plastic bag and a preparation method thereof. The antibacterial degradable plastic bag is prepared from the following raw materials in parts by weight: 60-80 parts of polyhydroxyalkanoate, 30-40 parts of filler, 2-4 parts of an antioxidant and 0.6-1 part of an active agent. In the preparation process of the antibacterial degradable plastic bag, in a filler system, vesuvianite powder and eggshell powder are used as inorganic reinforcing phases, sericin and mulberry leaf powder are used as bioactive phases, flax and cotton provide a natural fiber structure, and lignin and konjac glucomannan are used as bio-based bonding materials; and the eggshell powder is compact in crystal structure after being subjected to high-temperature calcination treatment, and can be used as a stress transfer medium in a material system, so that the stress concentration when the plastic bag is stressed is reduced, and the strength performance of the plastic bag is improved.

The invention discloses a preparation method for forming a micro-nano hydrophobic coating by dip-coating on the surface of a fabric, and relates to the technical field of hydrophobic modification of natural fiber fabrics. According to the first part of the product, the selected fabric is formed by weaving natural materials through pulping, spinning and other processes, the fabric hydrophobic coating is composed of two parts, the first part is that a hydrophobic solution and the fabric are selected to construct a microcosmic basic structure, the second part is that a hydrophobic layer is secondarily covered with a mixed solvent, and micro-nano solid particles are added; by utilizing the properties of a silane coupling agent and polydimethylsiloxane, the silane coupling agent and the polydimethylsiloxane are mixed according to a proportion, and the mixture is smeared on the surface of the fabric to construct a rough coating. The preparation method has the advantages that the hydrophobicity is good, and a modified product can still have a good hydrophobic effect after being soaked in water for a long time; the environment is protected, when landfill treatment is needed, the product can be degraded in the natural environment for two years, and when combustion treatment is needed, only carbon dioxide, water and other environment-friendly gases can be generated; water and soil loss is prevented, the hydrophobic effect can be kept in the soil for two years, and afforestation and desert greening are facilitated; the soil is fertile, and the product is rich in sodium ions after being soaked in sodium methyl silicate, so that the nutrient of the soil is increased, and the soil is kept in a fertile state.

The invention discloses an anti-wrinkle wear-resistant flax blended yarn and a processing technology thereof, and relates to the technical field of textiles. The prepared flax blended yarn comprises natural fibers, modified polylactic acid fibers and ultra-high molecular weight polyethylene fibers. Wherein the natural fibers are obtained by performing degumming pretreatment on linen fibers and bamboo fibers and then mixing the linen fibers and the bamboo fibers with cotton fibers; graphene oxide is deposited on the surface of the fiber through dopamine polymerization, so that the wear resistance of the yarn is improved; the modified polylactic acid fibers are obtained through melt spinning of polylactic acid, poly (adipic acid) / butylene terephthalate and modified chitin nanofibers, the compatibility of the chitin nanofibers and the polylactic acid is improved through polyethylene glycol, and the polylactic acid fibers are enhanced; coarse yarns are obtained through combing, drawing, roving and spinning, the coarse yarns are soaked in a finishing agent, and finally the finished blended yarns are obtained and have good wear resistance and wrinkle resistance.

An insulated shipping container and method of forming and loading an insulated container utilizing sustainable materials including recycled post-industrial, pre-consumer natural fiber, plant-based fiber and synthetic fiber to include recycled polyethylene terephthalate (PET).

The invention relates to the technical field of wallboard detection, and discloses an online visual detection system and method for a multilayer bamboo wallboard, and the system comprises a multi-dimensional information fusion module, a reference field texture analysis module, a statistical anomaly identification module, a time sequence thermal excitation module, an isotherm form recognition module and a feature matching and grading module. Pixel-level multi-dimensional information fusion is carried out on the visible light band signal and the near-infrared band signal of the multispectral image set to obtain a fused image; taking the typical trend of the bamboo natural fiber as a reference field, and comparing and analyzing the fiber texture trend to generate a texture feature map; identifying a texture abnormal area of which the fiber trend consistency is lower than that of the reference standard; applying thermal excitation in the texture abnormal area to adjust an intensity time sequence to obtain a time sequence gradient temperature field; recognizing a fracture form to obtain defect boundary and depth features, and outputting a quality grade after matching the defect boundary and depth features with a grading standard; according to the invention, the detection efficiency of the multi-layer bamboo wallboard can be improved.

The invention relates to the technical field of ecological restoration, in particular to an ecological restoration composite material and a preparation method thereof. Comprising a base material: 30-70 parts of a natural polymer material or a degradable synthetic polymer material; reinforced fibers: 5-40 parts of natural fibers or degradable synthetic fibers; a functional additive: 10-40 parts of at least one of a water-retaining agent, an organic fertilizer, a microbial carrier and a soil conditioner; a plant growth promoter: 1-15 parts of humic acid, a seaweed extract, a trace element fertilizer or an antagonistic antibacterial agent; a binder: 0 to 15 parts of a degradable polymer binder; and 5-15 parts by weight of water. According to the invention, the biodegradability of the material is ensured, the mechanical strength is improved and the overall performance of the composite material is enhanced by optimizing the combination of base materials, pretreating the reinforced fibers, achieving the synergistic effect of the multifunctional additive and efficiently loading the plant growth promoter; the ecological restoration composite material provides long-term support for plant growth.

The invention discloses an environment-friendly fiber textile composite material and an environment-friendly production process thereof, and relates to the technical field of textile composite materials, the environment-friendly fiber textile composite material comprises natural fibers, regenerated fibers, an environment-friendly adhesive and a functional additive, the natural fibers are fiber materials derived from renewable resources, and the regenerated fibers are fiber materials derived from renewable resources. The natural fiber is selected from one or more of bamboo fiber, cotton fiber, linen fiber, hemp fiber and coconut fiber, and the natural fiber accounts for 30-60% of the weight part of the composite material. The natural fibers and the regenerated polyester fibers are combined, so that the environmental protection performance of the material is enhanced while high strength and durability are guaranteed, the material has excellent hygroscopicity, air permeability and biodegradability, and the problems that in a traditional fiber material, the natural fibers are single in performance, the regenerated fibers are poor in environmental protection performance and the like are solved. The problems that mechanical properties and ecological sustainability are difficult to consider at the same time are solved, the service life of the material is prolonged through combination of various fibers, environmental pollution is effectively reduced, and the environment-friendly trend is met.

The utility model discloses a yarn with antibacterial, moisture-absorbing and quick-drying functions and a processing system thereof, and relates to the technical field of textile functional yarn production, the yarn comprises an antibacterial natural fiber core yarn and a moisture-absorbing and quick-drying coating layer, the moisture-absorbing and quick-drying coating layer comprises a natural fiber strip and a water-repellent natural fiber strip; the natural fiber strip and the water-repellent natural fiber strip are drawn to form a wrapping belt, and the wrapping belt is wound into a barrel shape in the width direction and wraps the outer peripheral side of the antibacterial natural fiber core yarn. The yarn can be made of all-natural plant fibers, can resist bacteria for a long time, has moisture absorption and quick drying performance, meets the use requirements of environmental protection, washing resistance and good wearing comfort, and has the advantages of being easy and convenient to process and manufacture.

Embodiments relate to an enhanced method for building walls by primarily reducing the time for assembly. The design is for a molded multi-segment plastic composite construction block that interlocks horizontally, vertically and orthogonally with a clearance-fit, does not require mortar for structural integrity and is self-aligning. The blocks are molded out of natural-fiber reinforced thermoplastic composites with thermal expansion coefficient less than 0.0002 per degree Celsius and compression strength greater than 60 MPa.

Product use by means of the invention for dyeing and coloring or the like of substrates made of fibers, fiber cables, yarns made of cut and filament fibers, flat structures such as woven fabrics, knitted fabrics, warp-knitted fabrics, non-woven fabrics and ready-made clothing and home textiles and the like, in particular of textiles with 100% or with mixtures thereof. These can be made of plant and animal natural fibers, stem fibers, synthetic fibers of petrochemical or natural origin as well as special fibers such as soy fibers, milk fibers, bamboo fibers or fibers that are difficult to dye such as aramid, polypropylene.

The invention discloses an artware material based on polyester degradable plastics and a preparation method thereof. The material is prepared from the following components in parts by weight: 50-80 parts of polyester degradable resin, 5-15 parts of a plasticizer, 10-25 parts of a natural plant fiber reinforcing agent with the length of 0.5-5mm and the diameter of 5-50 microns, 3-8 parts of a compatilizer, 0.5-2 parts of an antioxidant, 0.5-2 parts of a light stabilizer and 0.1-1 part of an antibacterial agent. The natural plant fiber reinforcing agent is pretreated by a coupling agent solution, and the material is prepared by melt blending in a twin-screw extruder with a specific length-diameter ratio. Through optimization of the formula and process parameters, the material has good degradability, mechanical strength, surface smoothness and dimensional stability, and also has aging resistance, antibacterial property and the like. The preparation method comprises the steps of natural fiber pretreatment, premixing, melt blending, granulation and the like, and the synergistic effect of all parameters ensures good dispersion and interface bonding of the fibers.

The invention discloses natural fiber geotextile and a preparation method thereof, and relates to the field of environment-friendly materials.The preparation method comprises the following steps that natural fiber fabric is placed in chemical treatment liquid to be subjected to dipping-compression roller treatment to obtain treated fabric, and the treated fabric is subjected to irradiation treatment; the chemical treatment liquid is prepared by mixing asphalt emulsion, bisphenol A epoxy resin, unsaturated polyester resin, a curing agent and an initiator. The asphalt emulsion, bisphenol A epoxy resin and unsaturated polyester resin are used for filling pores of the natural fiber fabric, cross-linking is carried out to form a three-dimensional cross-linked network, and irradiation treatment is carried out. Under the comprehensive action, the mechanical strength of the natural fiber geotextile is improved, the moisture absorption rate is reduced, and the antibacterial rate is improved.

Provided are a roadbed material containing, without clumping, granular carbonated steelmaking slag and a raw material having carbon fixation ability; and a method for manufacturing the roadbed material.　In the roadbed material, the content of at least one of carbonated steelmaking slag, a wood material, a synthetic resin, or a natural fiber is 1-90 mass%.

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.

An insulated container may include a rigid container surrounding an insulation layer formed from a post-industrial, pre-consumer card waste. The insulation layer may be characterized by a lack of any wrapping material. The insulation layer may be manufactured using a variety of converting processes including, carding, airlay, and needle punch to form a non-woven material for providing consistent density throughout the insulation layer. The insulation layer may include a natural fiber lamination layer on an outer surface of the insulation layer. The insulation layer may be biodegradable in an anaerobic environment.

A molded pulp product formed from the molding of a three-dimensional pulp slurry. The pulp slurry comprises a natural fiber composition of virgin fibers which have not been recycled and are derived from plant materials. The natural fiber composition includes hemp fibers which have been micronized to suitable length and combined with pulverized hemp shive to form a fibrous matrix. The molded pulp product is formed from a vacuum molding process, thermoforming process, custom air-burst molding process, or other molding process wherein the slurry is applied to a three-dimensional mold and a three-dimensional product is formed. The resulting packaging product is one hundred percent biodegradable.

The invention belongs to the technical field of building materials, and particularly relates to a geopolymer composite material and a preparation method and application thereof. The geopolymer composite material provided by the invention comprises a geopolymer matrix and fibers doped in the geopolymer matrix, the volume mixing amount of the fibers in the geopolymer composite material is 1.5-2%; the fibers comprise modified natural fibers and synthetic fibers, and the volume ratio of the modified natural fibers to the synthetic fibers is (0.5-1): (0.5-1); the preparation method of the modified natural fiber comprises the following steps: soaking natural fiber in a strong alkali solution, and modifying to obtain the modified natural fiber; the natural fibers comprise jute fibers and / or coconut fibers. According to the invention, the modified natural fiber and the synthetic fiber are compounded to form a mixed fiber reinforced system, so that the usage amount of the synthetic fiber is reduced; and by controlling the dosage ratio of the modified natural fibers to the synthetic fibers, the natural fibers play a role in skeleton reinforcement in the cracking stage, and the overall strength of the geopolymer composite material is improved.

The invention discloses a warp knitting vertical pile fabric and a production process thereof.The warp knitting vertical pile fabric comprises a vertical pile fabric body, an upper-layer plush material is integrally formed on the surface of the upper end of the vertical pile fabric body, a lower-layer plush material is integrally formed on the surface of the lower end of the vertical pile fabric body, and a multifunctional composite fabric is integrally formed in the vertical pile fabric body; the upright pile fabric main body comprises regenerated yarns, hollow silk fabric, super-soft densified upright pile grey cloth, polyester silk and natural fiber fabric, the natural fiber fabric is positioned on the surface of the super-soft densified upright pile grey cloth, and the hollow silk fabric is positioned on the surface of the natural fiber fabric. According to the warp-knitted upright pile fabric and the production process thereof, a pretreatment ironing and reducing process and a re-setting process are reduced through a dyeing process, a leveling agent, glacial acetic acid, a degreaser, a capillary effect improver, an anti-wrinkle agent and a color fixing agent are added, the acid-base value of warp-knitted upright piles and the oily value of cloth are adjusted and optimized, the dyeing effect is enhanced through the leveling agent, and the fabric has the advantages that the fabric is not prone to falling off; the standard is reached.

The invention discloses a preparation method of a finishing agent for improving the dry and wet rubbing color fastness performance of a fabric, and belongs to the technical field of material preparation. The method comprises the following steps: firstly, adding isophorone diisocyanate and polyethylene glycol into a reactor according to a specific molar ratio to carry out prepolymerization reaction, and then sequentially carrying out operations of hydrophilic chain extension, neutralization, emulsification dispersion and the like to form a waterborne polyurethane emulsion; adding ethylene glycol diglycidyl ether, triethylamine, tetrabutylammonium bromide, KH550 modified nano silicon dioxide and the like to carry out ring-opening reaction; and finally, carrying out polycondensation and crosslinking to obtain the finishing agent. On the basis of waterborne polyurethane, a high-strength net structure is constructed through a multi-step cross-linking reaction, toxic substances such as epoxy chloropropane and the like are avoided, the dry and wet rubbing color fastness, the hand feeling, the washability and the storage stability are remarkably improved, and an innovative scheme is provided for improving the high-performance and green color fastness of the dark natural fiber fabric.

The invention relates to the technical field of pearl wool composite materials, in particular to a polyethylene polymer environment-friendly pearl wool composite material and a preparation method thereof.The polyethylene polymer environment-friendly pearl wool composite material comprises, by weight, 40-70 parts of polyethylene polymer, and HDPE, MDPE and LLDPE are mixed according to a specific proportion; carrying out plasma treatment on 20-50 parts of pearl wool particles to introduce polar groups; the environment-friendly plasticizer is formed by compounding TBC and ATBC; 5-15 parts of degummed natural plant fibers for enhancing the binding force; 1-5 parts of nano titanium dioxide can be used for photocatalytically degrading pollutants; the 0.5-3 parts of antistatic agent is compounded by GMS and EAA, so that static accumulation is reduced; all the components have a synergistic effect, so that the material has various excellent properties. The composite material disclosed by the invention is good in environmental protection property, and air can be purified by using the environment-friendly plasticizer, the natural fibers and the nano titanium dioxide; the performance is excellent, and the buffering performance, the antistatic performance, the heat preservation performance and the flame-retardant performance are good. The preparation process is stable and efficient, can meet the requirements of multiple fields such as packaging, building and automotive trim, and has a wide prospect.

A compostable, high-temperature-resistant liner for use in cooking applications, comprising a plant-based fiber matrix incorporating one or more food-safe, heat-resistant components.The material may include, but is not limited to, sugarcane bagasse, bamboo, hemp, or similar natural fibers, and may further include heat-resistant additives such as plant-derived waxes, mineral substances including kaolin clay, or comparable compounds.The liner is suitable for use at temperatures exceeding 500° F. and may be provided as a flat sheet or as a molded insert with raised edges to fit standard broiler or oven trays.

The invention discloses a microwave-enhanced mixed waste textile low-temperature depolymerization recovery device and method.The microwave-enhanced mixed waste textile low-temperature depolymerization recovery device comprises a feeding system, a stirring system, a microwave catalytic depolymerization system and a condensation reflux system, the feeding system comprises feeding of mixed waste textiles, a catalyst and a solvent, the microwave catalytic depolymerization system serves as a reaction zone, reactants are heated through microwaves, and the reactants are separated from the stirring system; the condensation reflux system is communicated with the reaction area, so that a volatile solvent in the reaction can be effectively refluxed; the reactants are fed into a microwave catalytic depolymerization system according to a certain proportion to be subjected to a depolymerization reaction, a solid-liquid mixed product is obtained, and a catalyst, a natural fiber solid, a solvent and a bis (hydroxyethyl) terephthalate monomer product can be further obtained from the solid-liquid mixed product. According to the method, microwave heating and the specific catalyst are combined, gradient efficient depolymerization recovery is conducted on mixed waste textiles such as natural fiber and synthetic fiber blended materials, the recovered product is high in purity and value, and the problems that in the prior art, waste textile recovery is high in energy consumption, large in process pollutant discharge amount and the like are solved.

The utility model relates to the technical field of slope reinforcement and ecological environmental protection, in particular to an assembly type environment-friendly slope protection structure which comprises a plurality of protection units capable of being spliced. The slope protection device is characterized in that each protection unit comprises a grid layer of a natural fiber net structure, a supporting layer of a water-permeable structure located below the grid layer and an anchoring device used for fixing the grid layer and the supporting layer to the slope surface; a plurality of grids are distributed on the grid layer in an array mode, grid holes used for planting plants are formed in the grids, and through holes corresponding to the grid holes are formed in the supporting layer. Longitudinal drainage channels are formed between the left and right adjacent grids. Ecological environmental protection can be effectively enhanced, the stability of the slope protection structure is improved, and efficient drainage is guaranteed.