107 results about "Fiber type" patented technology

Methods and systems for fiber identification include emitting a pump pulse on a fiber using a transponder. A Brillouin gain spectrum of reflected radiation from the pump pulse is measured using the transponder. A fiber type is determined corresponding to the Brillouin gain spectrum.

Plied yarns and methods of constructing plied yarns from two different yarns, manufactured using different fibers wherein the plied yarns possess enhanced properties. The yarns developed and described herein are plied yarns, rather than, and in direct contrast to intimately blended yarns. Examples of the fibers and / or yarns utilized in forming the yarns of different fibers described herein, include but are not limited to 100% cotton, Modal, and Lyocell. The yarns described herein can be used for various end uses, including but not limited to formation of terry fabric for use in towels, robes, apparel, and the like.

The invention provides a fiber type polyionic liquid catalyst and a preparation method and application thereof, the fiber type polyionic liquid catalyst is prepared by spinning a precursor solution, and the precursor solution is prepared by dissolving an ionic liquid monomer, an initiator, a cross-linking agent and a polymer raw material in a solvent and mixing. A specific precursor solution is spun to obtain a polyion liquid catalyst with a fiber structure and high porosity, and the polyion liquid catalyst has a microporous network, can enhance gas and mass transport, enables catalytic active sites to be effectively exposed, and can catalyze CO2 cycloaddition to generate cyclic carbonate under the mild conditions of no metal, no catalyst promoter and no solvent; and the catalyst has high catalytic activity and good cycle performance. The fiber type polyion liquid catalyst has processability, can still keep high catalytic activity after continuously catalyzing CO2 cycloaddition reaction for 1000 hours in micro continuous flow reactors (such as fixed beds) and the like, and has a wide industrial application prospect.

The invention discloses a hybrid fiber reinforced geopolymer concrete dynamic growth factor prediction method and system, and relates to the technical field of composite materials, and the method comprises the steps: obtaining an initial peak stress growth factor based on the ratio of dynamic peak stress to quasi-static peak stress under a given strain rate; based on the ratio of the dynamic elastic modulus to the static elastic modulus, obtaining a dynamic increasing coefficient of the elastic modulus of the concrete; under the condition that the size of the static compression test piece is consistent with the size of the dynamic compression test piece, analyzing the influence of a fiber combination mode, a fiber type, a fiber mixing amount and a strain rate on the dynamic performance of the test piece; introducing fiber characteristic parameters to carry out secondary fitting on the initial peak stress growth factor to obtain a corrected peak stress growth factor; and fitting the dynamic increase coefficient of the elastic modulus of the concrete through a linear function to obtain a corrected elastic modulus increase factor and a critical strain rate. According to the method, the dynamic growth factor of the hybrid fiber reinforced geopolymer concrete can be accurately predicted, so that the impact resistance of the material is obtained.

The invention relates to the technical field of detection devices, and discloses a textile fiber component detection device and method, and the device comprises an optical detector which is used for imaging and photographing the surface of textile cloth. When a first magnetic ring is attracted by the magnetic force of a second magnetic ring, textile cloth can be tightly pressed on the upper surfaces of a first arc block and a second arc block, friction force is generated between the textile cloth and the first arc block and friction force is generated between the textile cloth and the second arc block, and when the first arc block and the second arc block move in the direction away from the second magnetic ring, the textile cloth is fixed. Through the arrangement, when the textile cloth is straightened and flattened, the tensile force on the surface of the textile cloth is more uniform, bending wrinkles caused by uneven tensile force on the local surface of the textile cloth are avoided, and it is ensured that under detection of an optical detection lens, fiber types or surface characteristics of the textile cloth are clear; the accuracy of a detection result is ensured.

The invention relates to the technical field of textile fiber component analysis, and discloses a textile fiber component qualitative online analysis system and method.The system comprises a spectrum collection module, a data processing terminal and a component recognition center, and the component recognition center comprises a spectrum preprocessing unit, a feature matching unit and a component judgment unit. The spectrum acquisition module acquires multi-band spectrum data of a textile sample in real time, and the data processing terminal receives an instruction to perform spectrum data format conversion. The spectrum preprocessing unit determines an interference section by recording spectrum distortion and a baseline correction interval, and controls the processing terminal to generate a spectrum characteristic matrix to calibrate component distribution on the surface of a sample; a feature matching unit generates a component report according to matched fiber types; when the component determination unit detects an abnormal spectrum, re-measurement is controlled in an interference section. The system realizes online real-time qualitative analysis of the textile fiber components, enhances the anti-interference capability, and can be widely applied to the field of textile fiber component analysis.

The invention provides an intelligent composite material reinforcement and a preparation method thereof, and the preparation method comprises the following steps: respectively using optical fibers and fiber yarns as weaving yarns, introducing the weaving yarns into a weaving machine according to a preset arrangement path, and weaving according to the molding process requirements of corresponding layer connection tissues, the construction of the intelligent composite material reinforcement is realized by independently controlling the introduction path of the optical fiber along the preset direction; wherein the preset direction comprises one or more of the warp direction, the weft direction or the thickness direction of the intelligent composite material reinforcement. According to the invention, the optical fiber is introduced into the intelligent composite material reinforcement body under the condition that the optical fiber is not damaged, and the distribution of the optical fiber in the intelligent composite material reinforcement body can be regulated and controlled by adjusting the introduction direction, the number and the bending angle of the optical fiber; and the method has the advantages of various organization structures, various fiber types, large reinforcement size and density control range, strong designability, good integrity, convenient operation in the weaving process and the like.

The application discloses a kind of hybrid fiber reinforced geopolymer concrete creep test method and system, it is related to hybrid fiber reinforced geopolymer concrete technical field, preparation different fiber species creep test piece;Different loading conditions are set, and the compression creep test is carried out to the creep test piece;In the compression creep test process, the creep data of each creep test piece is collected, and the creep data is handled;Based on the creep data after processing, the creep performance of hybrid fiber reinforced geopolymer concrete is evaluated.The application focuses on the creep behavior of GPC and HFGPC under long-term compression load.By analyzing the influence of fiber type, axial stress ratio and confining pressure level on creep characteristics, the deformation law of fiber reinforced composite materials under long-term service condition is revealed, which provides a theoretical basis for the engineering application of HFGPC and a reference for the prediction of its creep coefficient.

This invention discloses an improved drafting device for a roving frame, comprising a frame, a fixed roller, a movable roller, an adjusting assembly, and a transmission assembly. The adjusting assembly forms a closed-loop system with a pressure sensor, a hydraulic cylinder, and a controller, employing a PID algorithm to achieve precise control of the pressure between the rollers. The transmission assembly utilizes a spiral bevel gear pair combined with a prism-perforated and progressive spring structure to ensure stable transmission during the lifting and lowering of the movable roller. The device also features adaptive PID parameter adjustment, automatically optimizing control parameters according to fiber type. Compared with traditional technologies, this invention offers higher pressure control accuracy, effectively improving production efficiency and intelligence, while reducing energy consumption and maintenance costs.

The optical fiber type light spot homogenizer comprises a machine frame, a laser source is arranged at one end of the machine frame, a multimode optical fiber corresponding to the laser source is arranged at the other end of the machine frame, the laser source emits a laser beam, the multimode optical fiber receives the laser beam, and the multimode optical fiber is connected with the machine frame. The multi-mode fiber laser is characterized in that the relative refractive index difference section of the inner side of the sunken inner cladding of the multi-mode fiber is in a two-stage step decreasing shape, and the center line of the laser beam and the center of the end face of the multi-mode fiber are aligned and offset in parallel by a section of radial offset. The device is small in size, low in cost, compact in structure, good in homogenization effect and stable in performance, and can be directly seamlessly integrated with an input laser source and an output optical fiber system. The optical fiber type light spot homogenizer assembly and the laser beam shaping system can achieve efficient light spot homogenization within the centimeter-level distance. The system can be applied to a vehicle-mounted laser radar, a vehicle-mounted head-up display, a multimode PON optical splitter, laser medical equipment or laser material processing equipment and the like.

This invention discloses a modified fiber-reinforced composite high-permeability concrete and its preparation method in the field of concrete technology. The concrete comprises the following components: silicate cement, fly ash, coarse aggregate, composite fiber, waterborne polyurethane emulsion, activated biochar, water-reducing agent, composite bacterial solution, photocatalyst, and water. By adding modified polypropylene fiber, modified carbon fiber, waterborne polyurethane emulsion, and activated biochar to the concrete raw materials, this invention enhances the mechanical properties of the concrete, improving its stability, compressive strength, and crack resistance. It also increases the void structure of the concrete, further improving its permeability. Simultaneously, the addition of microbial solution and photocatalyst enhances the self-healing and self-cleaning capabilities of the concrete.

To provide a thermal insulation material that can improve workability of installation of the thermal insulation material including a moisture-proof sheet.SOLUTION: A thermal insulation material comprises a fiber type thermal insulation material, a moisture-proof sheet attached on one principal surface of the aforesaid fiber type insulation material, and a moisture-permeable sheet attached on the other principal surface opposite to the aforesaid first principal surface with the aforesaid fiber type thermal insulation material between them. The aforesaid fiber type thermal insulation material and the aforesaid moisture-proof sheet are not bonded.SELECTED DRAWING: Figure 2

The invention relates to the technical field of aerogel material preparation, and discloses functional clay-based aerogel and a preparation method thereof.The preparation method comprises the following steps that 1, clay, organic powder, artificial fibers and water are evenly mixed according to a proper proportion, and a uniform clay-based mixture is obtained; step 2, extruding the clay-based mixture by double rollers for multiple times to obtain a clay sheet; and step 3, carrying out puffing treatment on the clay slices to obtain the functional clay-based aerogel. A three-dimensional network framework of the aerogel is constructed by taking the fiber type clay as a main material and taking a small amount of glass fiber as an auxiliary material, so that the mechanical property of the aerogel is improved; starch is used as a puffing reinforcing agent, so that the density of the aerogel is remarkably reduced, and light heat insulation and flame retardance are realized; a catalyst is loaded in situ by a one-step method, so that the functionalization of the aerogel is realized.

The invention discloses a novel tail fiber type circulator and a packaging method thereof. The novel tail fiber type circulator comprises a first tail fiber collimator, a second tail fiber collimator, a third tail fiber collimator, a free space circulator core, a reflecting prism and a tube shell, a first port and a second port are vertically formed in one end of the tube shell, and a third port is formed in the other end of the tube shell; the first tail fiber collimator is inserted into the first port, the second tail fiber collimator is inserted into the second port, and the third tail fiber collimator is inserted into the third port; the reflecting prism and the free space circulator core are respectively arranged at the middle part in the tube shell up and down; the first tail fiber collimator, the reflecting prism, the free space circulator core and the second tail fiber collimator are sequentially coupled; the second tail fiber collimator, the free space circulator core and the third tail fiber collimator are sequentially coupled; the novel tail fiber type circulator is simple in optical path and compact in structure, the space in the tube shell is fully utilized, miniaturization packaging is achieved, and the size of the tail fiber type circulator is reduced.

The application provides a winding core spinning device based on a calculus principle and a method and application thereof. The device is provided with a negative pressure air suction port on a special-shaped plate, and a corresponding negative pressure airflow guide assembly is arranged above the negative pressure air suction port. Under the mutual cooperation of the diffusion flow guide hole and the negative pressure air suction mechanism, the spread fiber type short fibers with a certain width and uniformly distributed fiber height parallelism are obtained on the grid ring. Meanwhile, the short fiber sliver, core yarn and winding core yarn form a "y" shape structure in the winding core wrapping area. The core yarn self-rotation drives the short fiber sliver to be tightly wrapped and wound to the outer layer of the core yarn in the winding core wrapping area to form the winding core yarn. Then, the winding core yarn passes through the soft reinforcing winding core part, so that the wrapping layer is tightly attached to the yarn body under the action of temperature and pressure to form a good wrapping effect. The winding core yarn has a compact yarn body and a large core yarn proportion, solves the problems of small wrapping tightness, many wrapping exposed cores and low core yarn proportion of the core-spun yarn on the ring spinning machine, and greatly improves the yarn quality.

The invention discloses a hollow fiber type Janus membrane based on diffusion interfacial polymerization as well as a preparation method and application of the hollow fiber type Janus membrane, and belongs to the technical field of membrane separation. A diffusion device composed of a membrane assembly, a water phase system, an organic phase system, a pressure control system and an online temperature control system is designed, a water phase solution containing amine monomers and an organic phase solution containing acyl chloride monomers are prepared at the same time, and a hollow fiber hydrophobic membrane is fixed in a middle channel of the diffusion device; a water-phase solution heated by the temperature controller is introduced into a cavity of the middle channel through a first water pump, an organic-phase solution is introduced into the hollow fiber hydrophobic membrane through a second water pump, the water-phase solution and the organic-phase solution infiltrate the outer surface and the inner surface of the hollow fiber hydrophobic membrane respectively for diffusion interfacial polymerization reaction, and a polymer active separation layer is formed; and performing drying treatment to obtain the hollow fiber type Janus membrane. The hollow fiber type Janus membrane disclosed by the invention has excellent anti-pollution and anti-wetting properties.

The invention discloses an intelligent detection method, system and device for textile fiber components and a storage medium, and the method comprises the steps: extracting contour features based on a cross section image under the condition that the cross section image and Raman spectrum data of a to-be-detected textile are obtained; extracting spectrum sequence features based on the Raman spectrum data; according to the contour features and the spectral sequence features, determining a fiber classification result of the to-be-detected textile and a corresponding confidence threshold thereof through a trained fiber classification model; under the condition that the corresponding confidence threshold value is larger than a preset threshold value, the structure characteristic value of each fiber in the cross section image in the fiber classification result is determined, and the structure characteristic value comprises the average cross section area, the volume density and the number of the fibers; and the mass percentage content of each fiber in the fiber classification result is calculated according to the structure characteristic value, so that the efficiency and the accuracy of fiber type and mass percentage content detection are greatly improved.

The invention discloses a synthetic microbial flora for improving pork quality and application thereof. The synthetic microbial flora comprises two kinds of probiotics, namely lactobacillus plantarum WY2401 with the preservation number of CCTCC (China Center For Type Culture Collection) NO. The invention relates to ackermann muciniophilic bacteria. The synthetic microbial flora is prepared by compounding lactobacillus plantarum and ackermann mucophile according to a colony formation unit number ratio of 1: 1, concentrating and freeze-drying. Experimental results show that the synthetic microbial flora is added into the basic feed of the fattening pigs, so that the carcass traits are improved, the intramuscular fat content is increased, the conversion of muscle fiber types and the development of muscle fibers are promoted, and the meat quality is improved.

One or more aspects of the disclosure provides a nonwoven fabric comprising a single layer in which the single fabric layer comprises a plurality of different fibers in which each fiber type has desired functionality. In one aspect, a system for preparing a nonwoven fabric having a single fabric layer in which the single fabric layer comprises a plurality of different fiber types, is provided. The system includes a spin beam having a zoned distribution plate disposed upstream of a spinneret, the zoned distribution plate includes a plurality of distribution apertures arranged in zones, wherein each zone is configured and arranged to extrude a plurality of polymer streams that are of a different polymer type than polymer streams extruded by an adjacent zone to the spinneret to form a single layer having two or more types of fibers that are of a different type from each other.

The invention relates to the technical field of image recognition, in particular to a block comparison-based textile fiber classification method, which comprises the following steps of: performing matrix segmentation on a collected fiber photo to obtain a plurality of primary patterns; then identifying a first fiber texture feature corresponding to each first-level pattern; respectively calculating right and interest values of the first fiber texture feature and the corresponding similar fiber feature in the secondary pattern sampling area; and classifying the textile fibers in the fiber photo into a fiber type with the maximum right and interest value. According to the textile fiber classification method based on block comparison, first-level pattern texture features are extracted through matrix block, precise capture of a fiber local structure is achieved in combination with second-level dynamic sampling area analysis, and the misjudgment rate is remarkably reduced; secondly, a hierarchical feature processing strategy is adopted, a key area is rapidly screened through a first-level pattern, then a second-level area right value is calculated in a targeted mode, global redundant calculation is avoided, and the processing speed is increased.

The invention belongs to the technical field of organic solvent detection, and relates to a PTR-MS detection method for organic solvent residues in textiles, which adopts temperature programming dynamic thermal desorption combined with near infrared spectroscopy to synchronously characterize fiber types and moisture content, and regulates desorption parameters according to different matrix characteristics. Then, the thermal desorption gas is directly introduced into an ion mobility-proton transfer reaction mass spectrum combined system, by means of the multi-dimensional separation capacity of the collision cross section and the mass-to-charge ratio, a fragment mode is obtained through dynamic collision energy regulation and control, a multi-dimensional spectrogram library is constructed, rapid detection and accurate recognition of isomeride with similar structures and matrix interferents are effectively considered, and the detection accuracy is improved. According to the method, parameters obtained through the previous steps are integrated to form a six-dimensional data set, fiber-solvent interaction parameters and a graph neural network are combined to construct a matrix-dynamic coupling quantitative model, the influence of matrix adsorption / desorption balance and temperature on dynamics is fully considered, and the quantitative error caused by neglecting matrix-dynamic coupling in a traditional external standard / internal standard method is solved.

The invention relates to a wound treatment product which can be cut to size and which comprises a liquid-permeable layer with a nonwoven material, a protective layer with a nonwoven material, and a swelling layer. The swelling layer contains an aqueous salt solution and superabsorbent fibers, said superabsorbent fibers being provided in a textile composite comprising at least one type of support fiber. The wound treatment product can optionally have a backing on the upper face and a silicone-containing atraumatic wound contact layer on the lower face. The wound treatment product makes do without seams and is characterized by its excellent pressure stability.

The present invention provides a cellulose acetate fiber / plant fiber composite paper, its preparation method, and application. Using cellulose acetate fiber and plant fiber as raw materials, the paper is formed by wet-forming, achieving a gradient wettability structure in one step. The resulting cellulose acetate fiber / plant fiber composite paper exhibits a wettability gradient across the thickness. This method, which regulates fiber type and fiber blend ratio to enhance wettability differentiation, offers advantages such as flexibility, cost-effectiveness, environmental friendliness, and ease of processing.

The present invention relates to the technical field of textile fiber component analysis, and discloses a system and method for qualitative online analysis of textile fiber components. The system comprises: a spectrum acquisition module, a data processing terminal, and a component identification center, wherein the component identification center includes a spectrum preprocessing unit, a feature matching unit, and a component determination unit. The spectrum acquisition module acquires multi-band spectrum data of textile samples in real time, and the data processing terminal receives instructions to convert the spectrum data format. The spectrum preprocessing unit determines the interference section by recording the spectrum distortion and baseline correction interval, and controls the processing terminal to generate a spectrum feature matrix to calibrate the sample surface component distribution; the feature matching unit matches the fiber type based on this and generates a component report; and the component determination unit controls re-measurement in the interference section when an abnormal spectrum is detected. The system realizes online real-time qualitative analysis of textile fiber components, enhances anti-interference capability, and can be widely used in the field of textile fiber component analysis.

The utility model belongs to the field of textile machinery, disclose a kind of combined apron for apron type carding machine, it is made of metal apron strip (2) and elastic apron strip (1) compound, both are detachably mounted on same apron framework (3) by installation groove (8), can be realized individually replacement without interfering each other;Elastic apron strip (1) is close to fiber inlet, and metal apron strip (2) is set in the back side of elastic apron strip (1);Metal apron strip (2) is made of metal card clothing rack (4) and metal card clothing rack support (5);Elastic apron strip (1) is made of steel needle (7) implanted on base cloth (6) and base cloth (6).The utility model can be individually replaced metal apron strip, elastic apron strip without interfering each other when the change of fiber type or carding process, effectively open loose and separate impurities at apron inlet, maintain long-term stability of process gauge at the most tight place of outlet gauge, facilitate to obtain higher yield, carding quality.

One or more aspects of the disclosure provides a nonwoven fabric comprising a single layer in which the single fabric layer comprises a plurality of different fibers in which each fiber type has desired functionality. In one aspect, a system for preparing a nonwoven fabric having a single fabric layer in which the single fabric layer comprises a plurality of different fiber types, is provided. The system includes a spin beam having a zoned distribution plate disposed upstream of a spinneret, the zoned distribution plate includes a plurality of distribution apertures arranged in zones, wherein each zone is configured and arranged to extrude a plurality of polymer streams that are of a different polymer type than polymer streams extruded by an adjacent zone to the spinneret to form a single layer having two or more types of fibers that are of a different type from each other.

The invention discloses a steel fiber pull-out specimen casting mold, a casting method and a bonding slip test method, the mold comprising a bottom plate (1), a pair of top plates (2), a scale plate (3), bolts and nuts (4), bolt holes (5) and a slice (7); a pair of top plates and a scale plate are mounted on the bottom plate through bolts and nuts through the bolt holes, and the scale plate is located between the pair of top plates; a specimen casting hollow (21) for casting concrete is provided on the top plate, the specimen casting hollow runs through the top plate, a scale line (8) is provided on the scale plate, the slice covers the open end of the specimen casting hollow, one end of the steel fiber is inserted into the specimen casting hollow along the scale line, and the other end runs through the slice. The invention has variable specimen type, variable fiber type, angle and burial depth, improves specimen manufacturing efficiency and casting quality; can stably clamp the specimen during testing, can measure a more accurate fiber bonding slip relationship, is easy to install, disassemble and clean, and effectively reduces the test cost.

The invention belongs to the technical field of optical fiber devices, and particularly relates to a preparation method of an all-optical-fiber type hollow-core anti-resonance optical fiber low-pressure gas cavity. One end of a hollow-core anti-resonance optical fiber is welded with a reverse tapering single-mode optical fiber, and the other end of the hollow-core anti-resonance optical fiber is coupled with a thermally induced core expansion single-mode optical fiber; high-pressure gas replacement is carried out on the hollow-core anti-resonance optical fiber to enable the cavity to be filled with high-pressure and high-purity gas, then pressure reduction is carried out on the gas cavity, finally, the gradient-index optical fiber is used for assisting welding, the low-pressure gas cavity is sealed, and preparation of the gas cavity is completed. According to the invention, the miniaturized and high-performance hollow-core anti-resonance optical fiber low-pressure cavity can be successfully prepared, and the gas absorption spectrum can be monitored in real time in the preparation process. The all-fiber type hollow-core anti-resonance optical fiber low-pressure gas cavity prepared by the invention has the characteristics of high sealing performance, simple structure and easiness in repeated experiment, and can be used for research on interaction of most hollow-core optical fibers and gas.

The invention belongs to the technical field of hydrogen separation, and relates to a hollow fiber type electrically-driven proton exchange membrane hydrogen pump for hydrogen separation / compression, which is characterized in that the hollow fiber type electrically-driven proton exchange membrane hydrogen pump is formed by packaging one or more hollow fiber type proton exchange membrane electrodes, and hydrogen is separated / compressed from hydrogen-containing mixed gas at high purity under external voltage. Due to the hollow fiber type membrane electrode structure, the bundling packaging mode and the excellent pressure resistance, the specific surface area and the integration level of the proton exchange membrane hydrogen pump can be remarkably improved, and the application requirements of light-weight and large-scale hydrogen separation / compression are met.

The invention provides a foreign fiber distribution detection and control system applied to a spinning mill, which is used for collecting and integrating data and information of raw materials, foreign fiber types, distribution, work and the like of various foreign fiber detection points distributed on equipment such as a bale plucker, a foreign fiber sorting machine (foreign fiber machine), a carding machine and the like, and data in an industrial field Ethernet control system. In combination with a flow process, information such as defect types or data in an electronic yarn clearer of a winding machine of a cotton spinning mill, cloth surface defect types and distribution data and the like, the quality of raw materials and the efficiency of a production process are evaluated, working parameters of foreign fiber detection equipment are optimized and adjusted, and detection data and production process data of point positions are recorded; cooperative work of equipment is achieved, and the foreign fiber removal rate of the blowing section is increased.