Provided are a calculus spinning device and method for producing wrapped-core yarns. The calculus spinning device includes a feeding unit, an auxiliary core-wrapping unit and a yarn winding unit. The feeding unit includes: a staple fiber feeding unit, configured to stretch a roving into a staple fiber strand and feed the staple fiber strand into the auxiliary core-wrapping unit, and a core yarn feeding unit, configured to feed a core yarn into the auxiliary core-wrapping unit. The auxiliary core-wrapping unit includes: an auxiliary core-wrapping assembly; a pressurizing/conveying assembly, configured to provide pressure or power to the auxiliary core-wrapping assembly; a yarn guiding assembly, disposed between the auxiliary core-wrapping assembly and the yarn winding unit; and a wrapping area for wrapping and converging.
A hybridoma cell line secreting an anti-polystyrene monoclonal antibody and use thereof are provided. The hybridoma cell line includes hybridoma cell line PS-8 and hybridoma cell line PS-17 which are deposited with the China Center for Type Culture Collection under the Accession numbers of CCTCC NO: C2024144 and CCTCC NO: C2024154. The passage cell line can stably secrete the anti-polystyrene monoclonal antibody. The secreted antibody is high in potency, good in specificity and high in sensitivity, can be applied to kit detection, and has potential application values.
A pipeline-type positive warp yarn feeding device includes a yarn bobbin frame and a yarn feeding frame. The yarn feeding frame is provided with a positive yarn feeding assembly including a positive yarn feeding power component and positive yarn feeding wheels on the yarn feeding frame, the positive yarn feeding wheels correspond to yarn bobbins on the yarn bobbin frame, an outer circumference surface of a wheel shaft of each positive yarn feeding wheel defines spiral yarn feeding grooves, a groove mouth width of each yarn feeding groove is matched with a width of a strand of yarn, the yarn on the yarn bobbins is wound on the positive yarn feeding wheels, each yarn feeding groove accommodates a single strand of the yarn, and the positive yarn feeding power component is configured to drive the positive yarn feeding wheels to rotate and feed the yarn through a transmission gear assembly.
B65H 63/036 - Warning or safety devices for use when unwinding, paying-out, forwarding, winding, coiling, or depositing filamentary material, e.g. automatic fault detectors or stop-motions responsive to reduction in tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the combination of the detecting or sensing elements with other devices, e.g. stopping devices for material advancing or winding mechanism
D03D 49/04 - Control of the tension in warp or cloth
4.
HYBRIDOMA CELL LINE SECRETING ANTI-MICRO/NANO PLASTIC BROAD-SPECTRUM MONOCLONAL ANTIBODY AND USE THEREOF
A hybridoma cell line secreting an anti-micro/nano plastic monoclonal antibody and use thereof are provided. The hybridoma cell line includes hybridoma cell line MP-4 deposited under the Accession number of CCTCC NO: C2024262 and hybridoma cell line MP-9 under the Accession number of CCTCC NO: C2024261, which are screened by the inventor. The passage cell lines of the hybridoma cells can stably secrete the anti-broad-spectrum micro/nano plastic protein monoclonal antibody. The secreted antibody is high in potency and good in sensitivity, and can simultaneously recognize polystyrene (PS), polyvinyl chloride (PVC), polypropylene (PP), polyethylene (PE), and polyethylene terephthalate (PET), with good broad-spectrum recognition. Therefore, the hybridoma cell line provides a core raw material for establishing broad immune detection methods of microplastics and has wide application prospects.
A device and a method of whole lifecycle multi-indicator synchronous detection of yarns or fabrics are provided. The device includes a hairiness detection unit, a first guide unit, a tension adjustment unit, and a friction unit. The device is used for circularly rubbing a closed-loop object to be detected with a preset length on the friction unit, and collecting hairiness data in real time through the hairiness detection unit. The tension adjustment unit is a free-falling tension adjustment unit used to automatically adjust tension of the object to be detected in real time to ensure the stability of friction and transmission of the object to be detected. By arranging the circulating friction closed-loop circuit and arranging the free-falling tension adjustment unit on the circuit, the friction stability is improved. The synchronous and rapid detection of multiple indicators of the object to be detected can be realized.
A core spinning device and method based on a calculus principle. The device comprises a feeding unit, an auxiliary core wrapping unit (30), and a core-spun yarn winding unit (40); the auxiliary core wrapping unit (30) comprises an auxiliary core wrapping assembly (31), a pressurizing/conveying assembly (32) used for providing pressure or power for the auxiliary core wrapping assembly (31), a yarn guide assembly (33), and a wrapping area (34) used for wrapping and converging. By means of the auxiliary core wrapping unit (30), short fiber strands (S11) form short fiber strips having a certain width and comprising highly parallel and oriented fibers in the auxiliary core wrapping assembly (31); other units and assemblies of the device are also used to promote the short fiber strips to tightly wrap a core filament (F1), so as to prepare a core-spun yarn (S2) having a good wrapping effect and a large core filament proportion; the utilization of short fibers is maximized, and the raw material costs of the core-spun yarn (S2) are reduced; the problems of a core of the core-spun yarn (S2) prepared by a conventional ring spinning machine being prone to expose and the proportion of the core filament (F1) being low are solved; the core-spun yarn spinning device has low transformation costs, a wide application range, and high industrial application value.
The present disclosure discloses a color matching evaluation method combining similarity measure and visual perception. The method includes: firstly, constructing an image database with rich color information; extracting main colors from an acquired image using an improved clustering method for color matching; generating a corresponding palette using an intelligent color matching recommendation system, and evaluating a palette similarity using a minimum color difference model; then, recoloring the corresponding image using the generated palette through an image recoloring technology to obtain a recolored image, and calculating a structural similarity between the source image and the recolored image; performing feature level adaptive weighted fusion on the palette similarity and the structural similarity, and performing an eye movement tracking experiment on the source image and the recolored image to obtain visual perception data of the images.
G06T 7/90 - Determination of colour characteristics
A61B 3/113 - Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions for determining or recording eye movement
Provided are a full-life-cycle multi-index synchronous testing apparatus and testing method for yarn (50a) or fabric. The testing apparatus comprises a hairiness measurement unit (10), a first guide unit (20), a tension adjustment unit (30), and a friction unit (40). The testing apparatus is used for performing cyclic friction on the friction unit (40) on a closed object to be tested having a preset length, and acquiring hairiness data in real time by means of the hairiness measurement unit (10). The tension adjustment unit (30) is a free fall-type tension adjustment unit (30) and is used for automatically adjusting in real time the tension of the object to be tested, so as to ensure the friction and transmission stability of the object to be tested. The friction stability is improved by means of providing a cyclic friction closed loop and providing the free fall-type tension adjustment unit (30) on the loop. Meanwhile, data such as the change in hairiness, number of times of wear-resistance, and the change in the length of the object to be tested are acquired in real time until the yarn (50a) or the fabric strip (50b) wears to breaking, and then properties such as the wear resistance, strength, and dynamic creep of the object to be tested are evaluated, thereby achieving synchronous and rapid testing of multiple properties of the object to be tested.
A method of digital measuring the color of fabrics based on digital camera, includes: making plain fabric samples; obtaining ground-truth color of plain fabrics using a spectrophotometer; capturing a raw format digital image of the plain fabrics using the digital camera and extracting raw camera responses of the plain fabrics; capturing a raw format digital image of a target fabric and extracting the raw camera responses of a ROI in the target fabric; calculating a Euclidean distance and a similarity coefficient between the raw camera responses of the ROI in the target fabric and the plain fabrics; normalizing the Euclidean distance and the similarity coefficient; calculating a weighting coefficient of each color data of the plain fabrics based on the normalized Euclidean distance and similarity coefficient; weighting every color data of plain fabrics with a corresponding weighting coefficient; and summing the weighted color data of the plain fabrics.
SHANDONG ACADEMY OF ENVIRONMENTAL SCIENCES CO., LTD. (China)
WUHAN TEXTILE UNIVERSITY (China)
Inventor
Yu, Jun
Li, Qiang
Kang, Xingsheng
Ma, Tao
Ma, Guangxiang
Abstract
The present invention provides a magnetic core-shell nanosphere for the adsorption of a phenolic pollutant, a preparation method, and an application. The preparation method comprises the following steps: preparing a nanoscale adsorption carrier; performing a first round of modification on the nanoscale adsorption carrier, and obtaining a first modified adsorption carrier; performing a second round of modification on the first modified adsorption carrier, and obtaining a second modified adsorption carrier; and performing a polymerization reaction on the second modified adsorption carrier, and obtaining a magnetic core-shell nanosphere. The present invention solves the problem where only one round of modification on a magnetic nanoparticle is performed in current preparation processes for magnetic porous adsorbents, so if the magnetic adsorbent performs adsorption in a high temperature environment, the miscibility of the magnetic nanoparticle and a polymer will be destroyed, thereby affecting the adsorption function of the magnetic adsorbent.
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
B01J 20/30 - Processes for preparing, regenerating or reactivating
B01J 20/02 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material
B01J 20/06 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group
C02F 1/28 - Treatment of water, waste water, or sewage by sorption
The present invention discloses a centrifugal spinning apparatus, including a frame, a spinning device, a feeding device for providing a spinning solution to the spinning device, and a collection device for collecting centrifugal spinning fibers ejected by the spinning device. The collection device is horizontally disposed below the spinning device, to enable the centrifugal spinning fibers ejected by the spinning device to be attached to a surface of the collection device. A planar receiving-type centrifugal spinning automatic production device using the centrifugal spinning apparatus breaks through existing centrifugal spinning based on ring collection and centrifugal spinning technologies based on electrostatic collection, resolves a preparation problem of continuous filament of the centrifugal spinning, and achieves mass production of the centrifugal spinning. The whole production process is completed automatically without manual intervention.
D01D 5/18 - Formation of filaments, threads, or the like by means of rotating spinnerets
D01D 5/24 - Formation of filaments, threads, or the like with a hollow structureSpinnerette packs therefor
D01D 5/253 - Formation of filaments, threads, or the like with a non-circular cross sectionSpinnerette packs therefor
D04H 1/724 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged forming webs during fibre formation, e.g. flash-spinning
12.
Chemical regeneration method of water glass used sand
A chemical regeneration method of water glass used sand, which belongs to the field of resource recycling in the casting industry. The present invention adopts a two-component reagent composed of calcium oxide and tap water, an emulsion composed of sucrose and calcium oxide, and a calcium chloride aqueous solution to process the regeneration of the used sand, and prepares the sample of the reclaimed sand obtained after the reagent mixed with the used sand is sealed and placed for 0 to 24 hours respectively, and tests the properties of the sample including: initial strength, final strength and collapsibility, and sodium carbonate content, and compares the properties of raw sand and used sand after the tests. Among several regeneration methods, each property index of the reclaimed sand obtained by using calcium oxide and tap water to regenerate for 12 hours is the best.
B22C 5/04 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
B22C 5/06 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sieving or magnetic separating
13.
MULTIFUNCTIONAL SENSING INTEGRATED FLEXIBLE FABRIC-BASED SENSOR AND USE THEREOF
A multifunctional sensing integrated flexible fabric-based sensor and a use thereof. The flexible fabric-based sensor consists of yarns formed by respectively wrapping a pressure sensing yarn, a temperature sensing yarn and a humidity sensing yarn around an electrode, or consists of yarns formed by wrapping a pressure sensing yarn around a temperature sensing yarn and a humidity sensing yarn respectively. The pressure sensing yarn, the temperature sensing yarn and the humidity sensing yarn are all subjected to corresponding anti-interference processing; and by acquiring signals at two ends of each yarn and signals at yarn intersection points, and performing signal conversion and processing, the high integration of pressure, temperature and humidity sensing can be realized, and the simultaneous measurement and effective distinguishing of pressure, temperature and humidity can also be realized. In addition, the present invention is comfortable, and can be used for electronic skins or smart clothing.
G01L 1/22 - Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluidsMeasuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
G01L 1/14 - Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
G01K 7/02 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using thermoelectric elements, e.g. thermocouples
14.
NOVEL CHEMICAL RECLAIMING METHOD FOR USED SODIUM SILICATE SAND
The present invention relates to the field of resource recovery and utilization in the foundry industry. Disclosed is a novel chemical reclaiming method for used sodium silicate sand. In the present invention, reclaiming is performed on used sand using a dual-component reagent composed of calcium oxide and distilled water, an emulsion composed of sucrose and calcium oxide, an aqueous calcium chloride solution, etc.; samples are prepared using reclaimed sand obtained by mixing the reagent with the used sand and sealing the mixture for 0-24 hours, and the sample preparation performances comprising the instant strength, final strength, and collapsibility, as well as the sodium carbonate content in the reclaimed sand, are tested; and upon the completion of the test, the performances of the reclaimed sand are compared with those of new sand and used sand. Considering the various performance indexes comprehensively, among the reclaiming methods according to the present invention, the reclaimed sand obtained by using (calcium oxide plus distilled water) to perform reclaiming for 12 hours has optimal performance indexes; compared with new sand, the instant strength is increased by 60%, and the final strength is increased by 154%; the collapsibility of the reclaimed sand is slightly worse than that of new sand and better than that of used sand; and the content of sodium carbonate is reduced by 1.38% compared with that of used sand. The reclaimed sand meets the requirements of use.
B22C 5/00 - Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
B22C 1/02 - Compositions of refractory mould or core materialsGrain structures thereofChemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
15.
ION EXCHANGE-TYPE NANOFIBER SKELETON THREE-DIMENSIONAL SEPARATION MATERIAL HAVING CONTROLLABLE STRUCTURE, AND PREPARATION METHOD FOR SAME
Provided are an ion exchange-type nanofiber skeleton three-dimensional separation material having a controllable structure and a preparation method for the same. The preparation method comprises preparing nanofibers by means of a melt spinning process, pre-dispersing the nanofibers, preparing a suspension of pre-crosslinked nanofibers, and freeze-drying cross-linking, thereby obtaining a nanofiber skeleton three-dimensional separation material having structural stability, a large specific surface area, and a high adsorbing capacity. The microstructure of the nanofiber skeleton three-dimensional separation material is adjusted and controlled by adjusting and controlling the composition of the suspension of pre-crosslinked nanofibers and the manner of freezing. Adding different quantities of polyelectrolytes to the suspension of pre-crosslinked nanofibers enables the ion exchange-type nanofiber skeleton three-dimensional separation material to have various structures, high strength, and high adsorbing capacity. The entire preparation process has simple operations, is suitable for mass production, and provides superior product performance, thereby providing wide applicability in the fields of filtration, heat insulation, and adsorbing materials, and the like.
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
B01J 20/30 - Processes for preparing, regenerating or reactivating
C02F 1/28 - Treatment of water, waste water, or sewage by sorption
C08J 9/28 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
C08L 1/14 - Mixed esters, e.g. cellulose acetate-butyrate
16.
CENTRIFUGAL SPINNING APPARATUS AND PLANAR RECEIVING-TYPE CENTRIFUGAL SPINNING AUTOMATIC PRODUCTION DEVICE
Provided is a centrifugal spinning apparatus (1), comprising a machine frame (11), a spinning apparatus (13), a material feed apparatus (12) for supplying a spinning solution for the spinning apparatus (13), and a collection apparatus (14) used for collecting the centrifugally spun fiber ejected from the spinning apparatus (13). The collection apparatus (14) is horizontally arranged beneath the spinning apparatus (13) so as to cause the centrifugally spun fiber ejected from the spinning apparatus (13) to be attached to the surface of the collecting apparatus (14). The planar receiving-type centrifugal spinning automatic production device (100) using the centrifugal spinning apparatus (1) overcomes the existing centrifugal spinning based on ring collection and centrifugal spinning technology based on electrostatic collection, solving the problem of fabrication of a centrifugal spinning continuous filament and achieving batch production of centrifugal spinning, and can be applied to the composite of nanofibers or submicron fibers on the surface of wide non-woven fabrics or the production of wide nano or submicron non-woven fabrics; the entire production process is completed automatically, and requires no manual intervention.
D01D 5/18 - Formation of filaments, threads, or the like by means of rotating spinnerets
D04H 1/724 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged forming webs during fibre formation, e.g. flash-spinning
17.
Half-slide matched device and its application of ultra-smoothly reconstructing yarn hairy structure
A half-slide matched device and its application for ultra-smoothly reconstructing yarn hairy structure belong to a textile processing field. According to the half-slide matched device of the present invention, a vortex device static part and a vortex device moving part are matched. In practice, multiple devices are connected in tandem. When yarn moves, the parts of half-slide matched device are closed, for efficiently constraining and utilizing the vortex airflow. A directional jet tube one-directionally stretches hairiness on yarn surface to avoid hairiness random dispersion and entanglement, remove yarn surface impurities. Tandem-connected devices repeatedly superimpose and strengthen the reconstructed ultra-smooth yarn structure. The half-slide matched device can be opened when the yarn breaks, which facilitates splicing and maintenance. The half-slide matched device has a reasonable structure and is very convenient for wide application.
D02G 1/02 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e . by imparting false twist
D01H 4/02 - Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from sliversPiecing arrangements thereforCovering endless core threads with fibres by open-end spinning techniques imparting twist by a fluid, e.g. air vortex
D01H 1/115 - Spinning by false-twisting using pneumatic means
D02J 1/08 - Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
18.
PREPARATION METHOD FOR INTELLIGENT MOSQUITO-REPELLING FABRIC
A preparation method for an intelligent mosquito-repelling fabric. A polymer which has intelligent response to human sweat is grafted on the surface of a base fabric; a lateral group of the polymer is linked with a mosquito repellent; the mosquito repellent is citionella oil; the base fabric is pure cotton fabric or cotton-containing blended fabric; a natural nontoxic material is adopted as the base fabric; the base fabric is bonded with fabric by means of functional finishing; and the fabric is adopted as close-fitting clothing, not only does not cause harm to the body but also can easily enable mosquitoes to be kept far away, so that the probability of disease infection is reduced and a safe and healthy living environment within a small scope can be created. The preparation method caters to the consumption requirements of people, conforms to the development tendency of functional textiles, and has broad market development prospects, practical significance and actual use value.
D06M 14/04 - Graft polymerisation of monomers containing carbon-to-carbon unsaturated bonds on to fibres, threads, yarns, fabrics or fibrous goods made from such materials on to materials of natural origin of vegetal origin, e.g. cellulose or derivatives thereof
D06M 11/38 - Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
D06M 13/00 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials with non-macromolecular organic compoundsSuch treatment combined with mechanical treatment
Disclosed is a preparation method for a thermochromic fabric with a hydrophobic surface, a functional fabric can be formed, and the fabric is obtained by means of after-finishing of a common polyester fabric. Ultrafine particles which are compounded by hydrophobic thermoplastic polymers and thermochromic nano-powder are prepared in advance, a microstructure similar to a lotus leaf structure is formed on the surface of the fabric after the ultrafine particles are loaded on the surface of the fabric, and thus the thermochromic fabric has excellent hydrophobicity. Moreover, the ultrafine particles contain the thermochromic nano-powder, and the color can be changed according to changes of the human skin temperature.
D06M 15/263 - Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acidsSalts or esters thereof
D01F 6/92 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
A method to form yarn via film fiberizing spinning belongs to a textile technical field. A film cutting device is arranged behind each drafting system on a ring frame, whose cut resistance apron and cutting roller engage with each other to form a cutting zone to cut and fiberize the film to get belt-like multi-filaments. Then the multi-filament formed passes through the first, second and third drafting zones in sequence for drawing, in such a manner that the multi-filament molecular orientation and crystallization are improved. After being drafted, the multi-filaments are twisted into yarn by ring spinning, which provides a novel high-efficient and short-processing way of producing yarns of nano-micro fibers using films instead of conventional nano-spun fibers such as electro- and centrifugal spun fibers, thereby breaking restriction of “low bulk and low-speed production of nano-spun fibers” and integrating the film industry with the textile industry.
D01D 5/16 - Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
B26D 1/22 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with a movable member, e.g. a roller
21.
Ring composite spinning method based on film filamentization
A ring composite spinning method based on film filamentization is provided, which belongs to a textile technical field. According to the method, a film cutting drafting device is arranged above each drafting system on a ring spinning machine for cutting film material into ribbon-shaped multi-filaments to achieve the film filamentization, which changes a conventional formation of filament through linear spraying by spinneret orifices; then the multi-filaments formed pass through first and second filament drafting zones in sequence for drawing, so as to enhance and attenuate the multi-filaments. After in drawing, the multi-filaments are twisted with conventional staple fibers to form a composite yarn with high quality and functions, achieving one-step production of composite yarns of nano-micro fibers without online combination of nanofibers spinning and ring staple spinning, thereby breaking restriction of “low bulk and low-speed production of nano-spun fibers” and integrating film industry with textile industry.
Method and apparatus for producing ultra-smooth knitted fabric using hairy yarn belong to a technical field of textile. Yarn is false-twisted in a rotary holding form, for rotating the yarn stem on an ironing face. Meanwhile, a directional hairiness stretching device directionally ejects a steam flow towards the yarn, for reversely and orderly pre-wrapping hairiness on the rotating stem of the yarn, which avoids the yarn imperfection occurrence as the hairiness randomly or vertically wrapping onto the yarn stem. A vortex hair-wrapping device is used, so as to reversely wrap all the rest hairiness on the stem of the yarn, wherein a wrapping direction is opposite to a yarn moving direction for increasing difficulty of pulling out the wrapped hairiness during weft knitting, and increasing hair-wrapping tightness and fastness. The ultra-smooth yarn treatment apparatus is reasonably constructed and easily operated, which facilitates wide application.
D02G 1/00 - Producing crimped or curled fibres, filaments, yarns or threads, giving them latent characteristics
D06B 1/02 - Applying liquids, gases or vapours on to textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
D04B 35/26 - Devices for preparatory treatment of threads by heating
A method for accurately testing yarn hairiness through stretching one-directionally, belonging to a technical field of textile testing, is provided. A suction pipe is provided on an external side of a laser and connected with an exhausting fan through a sleeve connector and a hose. An air inlet of the suction pipe generates a negative pressure under an effect of the exhausting fan to laterally suck the yarn running at a tension state among the laser, a projection receiver and the suction pipe. The hairiness on a yarn surface stretches straight one-directionally towards an airflow direction at a height of a center of the air inlet of the suction pipe. The one-directional straight stretched hairiness on the yarn surface is accurately projected to the projection receiver of a testing head at an equal length for accurately testing a hair amount and a hair length.
A method for ring-spinning with pneumatic guiding and capturing includes steps of: respectively fixing a pneumatic guiding and capturing apparatus in front of each drawing system of a ring frame; twisting the ribbon-like strand outputted through a front roller nip to form a spinning strand, moving the spinning strand into a holder groove of a capturing holder; guiding ribbon-like strand edge fibers to closely contact with a spinning strand main body by negative pressure airflow in the holder groove; before the ribbon-like strand edge fibers enter an in-take opening, cohering the edge fibers with the spinning strand for being partly captured by the spinning strand stem; other un-captured edge fibers become spinning strand hairiness, which is then stretched and tightly wrapped onto the spinning strand stem by a negative pressure; the spinning strand is outputted from the holder groove outlet to get a high qualified spun yarn.
The present invention provides a two-dimensional run-length limited codec with protection characters and a method for using same. The codec comprises an encoder and a decoder. The encoder comprises a data buffer and grouping module, a two-dimensional code word generating module, a two-dimensional character unit page constructing module, a two-dimensional code word write array module, and a protection character filling module. The five modules are sequentially connected, and send output through the protection character filling module to a two-dimensional data recording device. The decoder comprises a two-dimensional data buffer module, a two-dimensional character unit page constructing module, a one-dimensional data character decoding module, and a one-dimensional data stream assembly module. The five modules are sequentially connected, and send output through the one-dimensional data stream assembly module. The encoding/decoding method and device of the present invention can solve the technical problem that a two-dimensional data array composed of "0" and "1" satisfies two-dimensional (1,3) RLL constrained by (1,3) RLL in two directions.
patents
