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3883results about How to "Avoid trouble" patented technology

Restaurant yield management portal

InactiveUS20080154654A1Avoid troubleIncrease the non-peak demandFinanceReservationsElectronic mailDatabase
A system and method to optimize the yield of a restaurant having perishable inventory is described. Through a card company, a restaurant can market incentives to make reservations during an off-peak time to enrolled card members. Offer marketing is based on stated customer preferences, and conducted via, for example, a website, email, or text message. Reservations are made, for example, via a centralized booking service. The incentive is fulfilled to the card member in a coupon-less manner. The card company receives a commission from the participating restaurant for every such sale.
Owner:LIBERTY PEAK VENTURES LLC

Material object programming method and system

The invention discloses a material object programming method and a material object programming system, which belong to the field of human-machine interaction. The method comprises the following steps of: 1) establishing a set of material object programming display environment; 2) shooting the sequence of material object programming blocks which are placed by a user and uploading the shot image toa material object programming processing module by using an image acquisition unit; 3) converting the sequence of the material object blocks into a corresponding functional semantic sequence by usingthe material object programming processing module according to the computer vision identification modes and the position information of the material object programming blocks; 4) determining whether the current functional semantic sequence meets the grammatical and semantic rules of the material object display environment or not, and if the current functional semantic sequence does not meet the grammatical and semantic rules of the material object display environment, feeding back a corresponding error prompt; 5) replacing the corresponding material object programming blocks by using the useraccording to the prompt information; and 6) repeating the steps 2) to 5) until the functional semantic sequence corresponding to the sequence of the placed material object programming blocks meets the grammatical and semantic rules of the material object display environment, and finishing a programming task. By using the method and the system, the problem that children and green hands are difficult to learn programming is solved, and the system has low cost and is easy to popularize.
Owner:INST OF SOFTWARE - CHINESE ACAD OF SCI

Distributed power generation system, and maintenance system and maintenance method utilizing the same

Distributed power generation systems are connected via the Internet to a managing apparatus in a managing company. The managing apparatus successively acquires and monitors the operation status of each distributed power generation system. The managing apparatus directly changes the control parameters or the sequence program of each distributed power generation system to perform necessary maintenance.
Owner:JX NIPPON OIL & ENERGY CORP

Vehicular headlamp

A vehicular headlamp, wherein a light source unit for light distribution formation is accommodated inside a lamp chamber defined by a lamp body and a front cover, includes a metal heat transfer member that serves as a light source unit structural member; a light-emitting element that serves as a light source; a fan for cooling the light-emitting element provided inside the lamp chamber; and a lighting circuit that controls lighting of the light-emitting element. The light-emitting element, the fan, and the lighting circuit are each attached to the metal heat transfer member.
Owner:KOITO MFG CO LTD

Unmanned management method and system of parking lot

The invention discloses an unmanned management method of a parking lot and an unmanned management system of the parking lot. The unmanned management method of the parking lot comprises the following steps: S1, when a vehicle is detected that the vehicle enters a sensing range of an exit / entrance of the parking lot, triggering a photographic device to be started so that a two-dimensional code or bar code image, which is displayed on a mobile terminal screen in the vehicle and which carries vehicle owner identity information, is remotely scanned; S2, decoding the scanned two-dimensional code or bar code image, extracting the vehicle owner identity information carried by the two-dimensional code or bar code image, uploading the vehicle owner identity information to a cloud server, and verifying the vehicle owner identity information through the cloud server; and, S3, when verification of the vehicle owner identity information by the cloud server at the cloud server is passed, receiving a switching-off instruction issued by the cloud server, and controlling a barrier gate of the exit / entrance of the parking lot to arise so that a vehicle owner conveniently drives in or out of the parking lot. Accurate identification of the vehicle owner identity information can be achieved, and the vehicle owner can be prevented from using a real parking card.
Owner:深圳老桥科技有限公司

Website access analysis system and method based on built-in code proxy log

A system and a method for actualizing website access analysis by an agent log of embedded code relates to a website analysis system and a method, wherein the system comprises 'webpage-embedded code', 'information acquiring webpage', 'agent log server', 'agent log program', 'error information webpage', ' analysis engine server', and 'analysis engine program'; the webpage-embedded code and the error information webpage link invoke the information acquiring webpage, the information acquiring webpage invokes agent log program, and the agent log program records an access information to generate an access log, an error log and a cookie check list, and the analysis engine program analyzes the file generated by the agent log program. The invention combines two access analysis modes of 'embedded code' and 'log analysis', which satisfies require for rapid and real-time statistics, and uses log to record information to make a deep access analysis and data excavation convenient. The invention simplifies the complexity of the website access analysis system, and provides a better frame design solving scheme for the design of large-sized website access analysis system.
Owner:刘峰 +1

Umbrella with chamber and transport for a canopeum

InactiveUS6698440B2Easy to storeConvenient to deployWalking sticksUmbrellasInsect pestEngineering
An umbrella with a chamber for storage of material such as an enclosure canopeum of netting. Included are mechanisms for transport and interchange of various canopeums. By turning a crank handle, netting is transported from its storage chamber to the edge of the umbrella canopy, where it can be lowered to the ground. The canopeum will then shield those under the umbrella from incursions by agents such as insect pests. Turning the crank in the opposite direction transports the canopeum to its stowed and protected position within the chamber. Canopeum accouterments facilitate attachment, removal, and interchange of canopeums having varied compositions, textures, and surface details.
Owner:BEYER ANDREA ELGIN +1

Power control unit

A power control apparatus for controlling charging and discharging of a plurality of storage means devices has a voltage measuring arrangement for measuring voltages of each of the storage devices, a current measuring arrangement for measuring currents flowing through each of the storage devices, a status detector for detecting the operating status of each storage device from values measured by the voltage and current measuring arrangements, and a charging / discharging control device for controlling currents, voltages, or power according to the operating status of each storage devices detected by the status detector to charge or discharge the storage devices.
Owner:HITACHI LTD

Composition for a desulfurizer with a high sulfur capacity and the process of making the same

The present invention discloses a composition for a desulfurizer with a high sulfur capacity and a process for making the same. The composition comprises the active components of three kinds of iron oxides and is used in the desulfurizer to remove hydrogen sulfide from the gaseous and liquid state feed stocks. The above-mentioned composition comprises cubic ferroferric oxide in the form of crystalline phase (Fe3O4), amorphous ferric oxide (Fe2O3) and amorphous ferric oxide monohydrate (Fe2O3.H2O). The composition has a sulfur capacity of at least 40%. The process for preparing the composition comprises the following steps: (1) mixing a solid ferrous compound with a solid hydroxide at a molar ratio of iron to hydroxyl being in the range from 1:2 to 1:3; (2) kneading the mixture feeds obtained in step (1) and making them react completely; (3) drying the products obtained in step (2) in the air; (4) washing and filtering the feeds obtained in the step (3); (5) naturally drying or baking the solids obtained in step (4) to form a composition for a desulfurizer with a high sulfur capacity. The process of the present invention is simple and easy to operate, consumes less energy and produces the products with a stable quality.
Owner:BEIJING HAIXIN ENERGY TECH CO LTD

Method for fixing plastic substrate, circuit substrate and method for producing same

InactiveUS20080099134A1Strength and toughness be poorSmoothly cut outLamination ancillary operationsSolid-state devicesControl treatmentAdhesive materials
A method for fixing a plastic substrate, comprising (1) applying or sticking an adhesive material onto a supporting substrate to form an adhesive material layer on the supporting substrate, (2) applying selective adhesive strength controlling treatment to the adhesive material layer to form at least two regions of a low adhesive strength region and a high adhesive strength region, and (3) applying under pressure a plastic substrate to the adhesive material layer at most 300 Torr.
Owner:FUJIFILM CORP

Vehicle dispatching system and dispatching method

The invention discloses a vehicle dispatching system, which comprises a dispatching server, and a passenger terminal device and a vehicle-mounted terminal device which are accessed into the dispatching server through the internet, wherein the passenger terminal device comprises a first wireless network module and a taking request module, and the vehicle-mounted terminal device comprises a second wireless network module, a passenger carrying registering module, and a passenger carrying response module. The invention also discloses a dispatching method of the vehicle dispatching system, respective information is registered into the dispatching server by the passenger terminal device and the vehicle-mounted terminal device, and a passenger and a vehicle are matched by the dispatching server according to the driving directions of the two parties so as to realize the dispatching of the vehicle and car sharing. The position information of the opposite party can be displayed in real time on the passenger terminal device and the vehicle-mounted terminal device so as to realize faster and more convenient carrying. A currently ordinary smart phone is adopted to realize more flexible vehicle dispatching, car sharing for passengers in rush hour can be realized, traffic resources can be utilized to the maximum degree, and energy is saved.
Owner:邵新阳

High polymer material ultraviolet laser 3D (three-dimensional) printing method and device for precise temperature control

The invention discloses a high polymer material ultraviolet laser 3D (three-dimensional) printing method and device for precise temperature control. The device comprises a thermostat, a laser head, a non-contact type temperature monitoring device, a scanning galvanometer, a machining platform, a powder paving device, a machining material and a computer control system. The laser head adopts a dual-tube core structure, an inner tube and an outer tube are coaxially fixed, one or more than one gradual-change neutral filter piece is arranged between the two tubes, and the laser transmittance of the filter piece(s) is radially reduced from the inner tube to the outer tube. The method comprises the following steps: presetting the machining temperature by the control system, in the process of machining, monitoring the temperature rise condition of an object to be machined in real time under the irradiation of laser by the non-contact type temperature monitoring device, feeding back to the control system, recording the increased value of the temperature within a certain time, and obtaining the absorption capability of the material to be machined to the laser and the temperature rise degree by the system, so that according to the preset machining temperature value, the laser output power can be calculated, the laser power can be timely adjusted, and the machining temperature can be precisely controlled.
Owner:INST OF CHEM CHINESE ACAD OF SCI +1

Intelligent system and method for managing and scheduling taxis

InactiveCN102682593ASolve the problem of deliberate detourReduce transportation expensesRoad vehicles traffic controlWired communicationDriver/operator
The invention discloses an intelligent system for managing and scheduling taxis, which comprises a server system for managing and scheduling the taxis, taxi-mounted terminals, passenger terminals, a location satellite, a yellow page database, a wireless communication network charging system, a wired communication network charging system and a public electronic communication network, wherein electronic communication among the server system, the taxi-mounted terminals, the passenger terminals, the location satellite, the yellow page database, the wireless communication network charging system, the wired communication network charging system and the public electronic communication network is used for managing and scheduling the taxis. The initial states of the taxis which are controlled by the server system are states of waiting to be provided with transporting services, and the initial state of one taxi subjected to site stopping, telecommunications ordering and relevant operations of a taxi driver becomes setting, leaving for a place of waiting, transporting service (cooperation), transporting service (individual), out of service, waiting for carrying passengers on the way, transporting of on-the-way passengers (cooperation), transporting of on-the-way passengers (individual) and the like. Under the condition that the taxi is in the state of transporting service (cooperation) or transporting of on-the-way passengers (cooperation) and the taxi is not filled with the passengers, cooperation transporting service or cooperation on-the-way passenger transportation that the quantity of the passengers is not more than the vacancy can also be accepted.
Owner:舒方硕

Traffic and travel information service system and method based on an electronic map

ActiveCN109766405AReal-time navigation servicePlanning and Safe Navigation ServicesDetection of traffic movementGeographical information databasesService systemElectronic map
The invention provides a traffic and travel information service system based on an electronic map. The traffic and travel information service system comprises a traffic system center, a roadside unit,a management terminal and a user terminal, The roadside unit comprises a management roadside unit and an identification roadside unit; The traffic system center is in signal connection with the third-party platform, the management terminal and the user terminal. The user terminal is used for uploading the traffic event monitoring information and the user terminal request to the traffic system center; The management terminal is used for uploading traffic event monitoring information, a management terminal request, a traffic road condition path planning request and a mapping request to the traffic system center; The management roadside unit is used for uploading traffic event monitoring information to the traffic system center, receiving information sent by the management terminal and the user terminal and sending the information to the management terminal and the user terminal; The invention also provides a traffic and travel information service method based on the electronic map, which is carried out by utilizing the system and can ensure smooth and safe traffic and travel and improve the user experience.
Owner:ROUTER TECH HANGZHOU INC

Power source device, electric vehicle provided with same, and electricity storage device

InactiveUS20150125720A1Trouble by a broken piece is preventedAvoid troubleElectric devicesCell component detailsElectricityInternal pressure
In a power supply device, the gas exhaust valve is integrally coupled to the outer can at the time of opening the gas exhaust valve, and the connecting portion between the outer can and the gas exhaust valve is partially broken at the time of opening the gas exhaust valve by an internal pressure of the outer can, and the gas duct further comprises a joining aperture being connected airtight to the gas exhaust valve, and a duct exhaust portion being connected to the external gas exhaust duct, and the inner diameter d inside the gas duct is at least partially smaller than the outer diameter a of the gas exhaust valve between the joining aperture and the duct exhaust portion.
Owner:SANYO ELECTRIC CO LTD

Recording medium and blood glucose monitoring system using the recording medium

A recording medium includes a sensor circuit unit generating a current in accordance with a blood glucose level in blood, and a control unit calculating blood glucose level data from the data obtained by digital conversion of the generated current at signal processing unit, writing the calculated data to an EEPROM as a memory unit, reading the blood glucose level data from EEPROM and transmitting the same to a portable terminal on which recording medium is mounted, through a communication control unit. The recording medium further includes a power supply control unit receiving power from the portable terminal on which the recording medium is mounted, and supplying power to various portions in the recording medium. As a result, the recording medium can be utilized, when mounted on the portable terminal, a blood glucose monitoring apparatus, and the recording medium can be used in a system for providing bi-directional service between the portable terminal and a server managing the blood glucose information received from the portable terminal connected by a network.
Owner:NIPRO CORP

Community intelligent passing control system and method based on narrow band Internet of Things

The invention provides a community intelligent passing control system and method based on narrow band Internet of Things and belongs to the technical field of Internet of Things. The system is an intelligent wireless control system composed of a narrow band Internet of Things (NB-IoT) communication technology, a network technology, a cloud technology and a control technology and is applied, but not limited to the fields including elevators, access control, parking lots and the like of a community. The system is a whole set of solution for community intelligent passing. The system comprises a mobile terminal (APP (Application) or a Wechat applet) of a user, a property management platform, a cloud server, an NB-IoT communication module, a controller, an expansion board, a license plate recognition camera and a two-dimensional code display device. Compared with other methods, the system has a plurality of incomparable advantages of massive connection, deep coverage, ultralow power consumption, low cost, stability and reliability and the like; the system is an only technical solution for realizing effective communication in scenes with relatively weak signal coverage; and furthermore, an owner can pay property management fee, car parking fee and the like through a cell phone, and troubles that the owner goes to a property management center back and forth are avoided.
Owner:徐东哲 +2

Method of improving performance of convolutional neural network based on linear discriminant analysis criterion

The invention discloses a method of improving performance of a convolutional neural network based on a linear discriminant analysis criterion, which belongs to the field of deep learning convolutional neural networks, the field of brain cognition and the field of computer vision image classification. The method comprises the following steps: 1) to-be-processed image sets are divided into a training set, a verification set and a test set; 2) a convolutional neural network model is selected; 3) one layer in the convolutional neural network model in the second step is selected, regularization constraints based on the linear discriminant analysis criterion are carried out on features of the selected layer, and a new convolutional neural network model is formed; and 4) according to mini-batch-based stochastic gradient descent method, the training set is used for training the new convolutional neural network model, and after the new convolutional neural network model is well trained, the well-trained convolutional neural network model tests to-be-classified images, and classified prediction is completed. Experimental results show that the method of the invention can significantly improve the convolutional neural network image classification precision.
Owner:XI AN JIAOTONG UNIV

Fire monitoring system and fire sensor

A multi-sensor type sensor has sensor processors for generating detection data of plural types based on detection signals from a plurality of sensor portions, and a mode switching portion for switching a mode which indicates type of data to be sent to a receiver in response to a mode switching instruction issued from the receiver, and sending selectively the data of the type which corresponds to a current switching mode in response to a data request instruction issued from the receiver. The receiver includes a mode switching indicating portion for switching the mode by transmitting the mode switching instruction which selects type of response data to the fire sensors, and a fire judging portion for judging the fire by receiving the response data from the fire sensors in response to transmission of the data request instruction.
Owner:HOCHIKI CORP

Ceramic composite electronic cigarette heating pipe and electronic cigarette atomizing core employing same

The invention discloses a ceramic composite electronic cigarette heating pipe which comprises an electric heating wire and a micro-porous ceramic pipe; a main body part of the electric heating wire is pre-embedded in the pipe wall of the micro-porous ceramic pipe; the electric heating wire is led out of the outside of the micro-porous ceramic pipe through connecting pins. A compact connecting piece is arranged at each of the upper and lower ends of the micro-porous ceramic pipe. The two connecting pins of the electric heating wire are lead out from the lower end of the micro-porous ceramic pipe; the compact connecting piece at the lower end is a metal connecting ring; a connecting pile protruding into the pipe wall of the micro-porous ceramic pipe is arranged on the upper side of the metal connecting ring. A double-electrode conductive connecting ring consists of an inner ring electrode and an outer ring electrode and is arranged on the lower side of the metal connecting ring; the outer ring electrode is electrically connected or integrally formed with the metal connecting ring; an insulating ring is arranged between the outer ring electrode and the inner ring electrode. The inner ring electrode and the outer ring electrode of the double-electrode connecting ring are respectively electrically connected with the two connecting pins of the electrical heating wire. When the heating pipe disclosed by the invention is in use, the double-electrode conductive connecting ring and a double-electrode conductive connecting column of an atomizing core are designed to be in threaded connection for realization.
Owner:INNOKIN TECH

Vision protection implementation method of electronic equipment with display screen

The invention relates to a vision protection implementation method of electronic equipment with a display screen. A front panel of the electronic equipment is provided with a front-facing camera and a distance sensor. The vision protection implementation method comprises the following steps of: detecting a working state of the display screen, `starting the front-facing camera on back stage when the display screen is activated and capturing human face images; identifying the human face images by using a human face identification technology and capturing a frontal human face; when the system judges that the frontal human face exists in the captured images, starting the distance sensor on back stage and measuring a distance between eyes of a user and the display screen; and comparing a measured distance with a preset reference distance, and judging whether to remind a user to adjust the distance between the eyes and the display screen. According to the vision protection implementation method, the purpose of protecting eyes of the user is achieved by monitoring the distance between the eyes of the user and the mobilephone screen by two external equipments, namely the front-facing camera and the distance sensor; and because the step of judging the frontal human face is added, the monitoring accuracy is improved and the trouble brought to the user due to wrong prompt information is avoided.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Trash information judgment method and device

The invention relates to a trash information judgment method and device. The method comprises: when receiving target information, carrying out word segmentation on the target information; according to a pre-set word vector model, obtaining a word vector of each word obtained by the word segmentation; acquiring a first information classification result of the target information according to the word vector of each word and a pre-trained target recurrent neural network; and judging whether the target information is trash information or not according to the first information classification result. With the adoption of the technical scheme, when the target information is received, the target information can be subjected to the word segmentation, so that the word vector of each word is obtained from the target information; furthermore, based on the word vector of each word and the pre-trained target recurrent neural network, the first information classification result of the target information is calculated and whether the target information is the trash information or not is accurately judged, so that the identification precision and accuracy of the target information are improved; and the target information can be easily marked or intercepted at a later period and great troubles to users, caused by the trash information, are avoided.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Lens boundary detection method

The invention discloses a lens boundary detection method which comprises the following steps of: 1) video frame character representation: calculating a non-uniform block histogram of each frame in the video in an HSV color space based on a general parallel calculation architecture as the characteristic representation of the video frame; 2) obtaining of similarity sequence, wherein the similarity of adjacent video frames is obtained by calculating the weight sum of the histogram distances of corresponding blocks, and the similarity sequence is a sequence consisting of the similarities of all adjacent video frames in the video; and 3) identification of lens boundary: for the detection of lens shear boundary, calculating the threshold by use of an adaptive threshold algorithm based on the similarity sequence, wherein the place with a similarity bigger than the threshold is the lens shear place. The detection of lens gradient boundary comprises the following steps of: finding the candidate gradient boundary by use of the inversion pair counting algorithm, and forming unified expression by use of Fourier function fitting; and comparing the candidate boundary with the standard gradient model to determine the gradient boundary and identity the gradient type thereof.
Owner:南京来坞信息科技有限公司

Simulation test system for thermal impact ageing of power transmission insulator

The present invention relates to a simulation test system for thermal impact ageing of a power transmission insulator which simulation tests an influence of a forest fire on the power transmission insulator. The present invention provides a simulation test system of thermal impact ageing for a power transmission insulator, which includes a heating chamber provided with a flame supplying part and electric heating parts in fireproof walls and a partition wall having an opening / closing door in a lower part thereof; a cooling chamber placed under the heating chamber and provided with a cooling nozzle in a fireproof wall; a sample lifting device for selectively lifting a test sample up and down through the heating chamber and the cooling chamber; a door transporting device for slidingly moving the opening / closing door; and a central control part for controlling the flame supplying part, the electric heating part, the opening / closing door, the cooling nozzle, the sample lifting device and the door transporting device independently and respectively. Therefore, since the heating chamber and the cooling chamber are configured independently from each other, heating and cooling tests for the test sample can be performed individually or together.
Owner:KOREA ELECTRIC POWER CORP

Paint for H grade polyurethane enamelled wire with good saline water needle performace capable of directing welding at low temp.

The invention relates to an H-grade wire coating enamel that has good salt water pinhole performance and can be directly welded at low temperature, containing hydroxyl component, sealed isocyanate component and solvent, where its hydroxyl component has an acid value less than 2, a hydroxyl value of 150-300, and number-average molecular weight of 1500-5000, and as synthesized, the raw materials has at least m-phthalic acid, p-phthalic acid, adilic acid, glycerin and a kind of dibasic alcohol in the weight ratio of 1 to (0.2-2) to (0.2-0.5) to (0.5-3) to (0.5-1.5); and its sealed isocyanate component is partially added of MDI by mixed polyalcohol that at least has a dibasic alcohol and a tribasic alcohol; in the paint base, the equivalent ratio of isocyanate base to OH is (0.9-1.2) : 1, and it reaches H-grade and has good salt water pinhole property of paint film, tin daubing temperature less than or equal to 375 deg.C.
Owner:CNOOC CHANGZHOU PAINT & COATINGS IND RES INST

Method for culturing of edible fungi

The invention discloses a method for culturing edible fungi, which includes the following steps: culturing the mother culture in larger scale to prepare liquid culture spawn, introducing the liquid culture spawn together with culture medium which needs to be sterilized separately to cultivating material for thick solid ventilated culturing, when the cultivating material is filled with hypha, briquetting and shaping the cultivating material, and sending the briquetted cultivating material to a mushroom house to produce mushroom. The method is environment-friendly, energy-saving, short in production period, low in pollution rate and small in work intensity.
Owner:ZHEJIANG UNIV

Airborne SAR radiation external calibration processing method based on weak arrangement of corner reflectors

The invention relates to an airborne SAR radiation external calibration processing method based on weak arrangement of corner reflectors. The method comprises the following steps: obtaining original SAR image data of a calibration field; on the basis of a point target radar equation, reconstructing an radiation external calibration equation; performing stable estimation on calibrator image energy and geometric optical solution on a calibration RCS; carrying out fitting and correcting on a radar system transfer function to obtain preliminary radiation calibration SAR image data; carrying out the stable estimation on the calibrator image energy and the geometric optical solution on the calibration RCS; and estimating a system constant item so as to generate calibration data and obtain final radiation calibration SAR image data. According to the invention, on the basis of the point target radar equation, according to the characteristic of parameters of a radar system, the SAR radiation external calibration equation comprising a change system transfer function and a constant system constant item is reconstructed, the application process of radiation external calibration is simplified, and the problem is avoided that it is quite difficult for airborne SAR flight to obtain a large-scope homogeneous stable tropical rainforest area frequently used by similar spaceborne SAR radiation calibration.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST

Method for dyeing cotton fibers by using natural dye

The invention relates to a method for dyeing cotton fibers by using a natural dye, comprising the following steps of: 1) boiling the cotton fibers and drying the cotton fibers for later use; 2) modifying the cotton fibers; 3) dyeing the cotton fibers; and 4) fixing the color of the cotton fibers, wherein the dosage of a color fixing agent is 1-5% of the mass of the cotton fibers, the temperature of color fixation is 50-85 DEG C, the color fixing agent is added to the cotton fibers obtained in step 3), the time of color fixation is 20-50 min, drying is performed after water washing, and the color fixing agent can be one or two of sodium chloride, sodium sulfite, citric acid and aluminum potassium sulfate dodecahydrate. The food-grade fixing agent is selected in the method; therefore, the troubles caused by synthetic dyes and heavy metals for the health of human are solved, and the fastness of the cotton fibers can be enhanced; as a result, the dyed cotton fibers are natural and soft in color and have no harm to the human body and the environment.
Owner:CHANGZHOU MYSUN BIOLOGICAL MATERIALS
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