1327results about "Inspecting textiles" patented technology

A system for the characterization of webs that permits the identification of anomalous regions on the web to be performed at a first time and place, and permits the localization and marking of actual defects to be performed at a second time and place.

The invention relates to an online automatic detection method of fabric defects based on machine vision and a device thereof, wherein the clear and integral standard fabric images without the defects of the fabric are shot on a batching and burling machine as a standard image template by utilizing an industrial camera in order to solve the problems of great labor intensity and poor detection quality of the traditional manual detection method; the corresponding characteristic parameters are extracted and stored into a computer; the range of the fabric defect detection characteristic parameters is set according to the requirements of users; the fabric images which are shot in real time are transmitted to the computer to be compared with the standard image template by utilizing the industrial camera and compared with the standard characteristic parameters; if the fabric characteristic parameters are not in conformity with the set requirements, the alarm is started by detection software; the defects are analyzed; and the printing of defects labels is executed. The invention has the advantages of high detection accuracy and high speed; and the labor intensity is greatly reduced.

The present invention relates to an automatic cloth inspection grade objective evaluation system. It mainly includes CCD camera, fabric holding device, light source, computer and image-collecting card. Said objective evaluation method includes the following steps: utilizing image-collecting card to convert the fabric image into digital image, using fabric defect detection DSP to detect fabric defect, using defect image separation DSP module to separate fabric image with defect, using defect characterization DSP module to make automatic characterization of defect, inputting the characterized result into fabric grade evaluation DSP module to make automatic evaluation of fabric grade.

A method and an apparatus for detecting foreign fibers in a moving textile material, in particular in moving threads, yarns or slivers, include providing a probe for picking up triboelectric signals from the moving textile material and comparing the output of the probe with a reference value to provide a signal representative of detection of a foreign fiber in the textile material. The apparatus may be used in a card, a drawing bench, a ring spinning machine, an air-jet spinning machine, an open-end spinning machine, a chemical spinning machine, a bobbin winding machine a doubling machine, a combing machine, a bobbin frame, a texturing machine or a loom.

Certain embodiments according to the invention provide compression articles suitable for a wide variety of uses (e.g., compression socks, athletic garments, etc.). In accordance with certain embodiments, the compression article includes at least two uniform compression regions, including a first uniform compression region having a first compression pressure and a second uniform compression region having a second compression pressure, and at least one transitioning compression region, including a first transitioning compression region positioned between the first and second uniform compression regions. The first transitioning compression region comprises a first end adjacent or proximate to the first uniform compression region and a second end adjacent or proximate to the second uniform compression region. The first transitioning compression region comprises a compression pressure gradient extending from the first end to the second end of the first transitioning compression region.

Described is a method of forming a textile perform for a mold having a complex curvature.

The invention aims to provide an automatic cloth inspecting machine, which is an optical sensing device-based automatic cloth inspecting machine. The automatic cloth inspecting machine of the invention has a simple structure, is convenient to operate and greatly improves working efficiency and cloth inspecting quality. The automatic cloth inspecting machine of the invention comprises a frame, baffle plates, a cloth guiding system, an illuminating system and an image pickup system, wherein the baffle plates are arranged around the frame; and the cloth guiding system, the illuminating system and the image pickup system are arranged in the frame respectively.

The invention provides a method and a device for online detection of foreign fiber in cotton. The device comprises a cotton opener, channels, windows, a CCD (Charge Coupled Device) camera, an illumination light source, a background plate, a nozzle array, a foreign fiber channel, a foreign fiber collecting unit, a computer, an electrical equipment cabinet, operating buttons, a frequency conversionfan and a cotton conveyance pipe. The method comprises the following steps: opening lint cotton; feeding the lint cotton into the detection area of the CCD camera through the channels; performing theillumination and CCD camera sampling in three steps, and further collecting the detection results of the three steps for identifying the foreign fiber; calculating the time for nozzles in the corresponding positions to the foreign fiber to open and close by combining the action delay time of each nozzle; controlling the corresponding nozzles to operate, so as to remove the foreign fiber; and meanwhile, outputting clean cotton with the foreign fiber being removed from the clean cotton output channel, wherein, by combining the performance parameters of the CCD camera, the cotton flow rate in the corresponding area of each nozzle can be calculated from the data obtained through infrared LED illumination and sampling, and the average cotton flow rate can be further calculated; and then, the cotton flow rate in the channels can be stabilized within a per-determined range by controlling the frequency conversion fan.

A method for forming a composite absorbent member is provided that includes:

• • a) extruding a first fibrous component through a first meltblowing die and intermingling pulp fibers with the first fibrous component to form a first admixture;
  • b) extruding a second fibrous component through a second meltblowing die and intermingling pulp fibers with the second fibrous component to form a second admixture; and
  • c) codepositing the first and second admixtures on a collecting surface so as to form a composite structure having at least a first layer and a second layer. The second layer has a higher weight percentage of pulp fibers than the first layer, and the average diameter of the pores within the second layer is smaller than the average diameter of the pores within the first layer.

An implant for medical use, and methods of making same, having a body formed of a plurality of single strands of a first material. The body further includes at least one multi-strand of radiopaque material incorporated among the single strands, the multi-strand having at least two side-by-side filaments of radiopaque material that lie substantially contiguous to each other over substantially the entire length of the multi-strand.

The invention discloses fabric color fastness color difference grading method. It includes the following steps: copying fabric color character and transmitting to the computer to obtain homochromatic different spectra image in RGB color space coordinates; analyzing and measuring. It has the advantages of practical, reliable, easy operation, fast analyzing, automatic grading etc.

The invention provides a double-point coating production line for hot-melt adhesive padding cloth, and the double-point coating production line comprises a cloth reception device, a wind shielding screen, a size discharging roller, a holt-melt rubber powder blowing/sucking device, a drying oven, a cooling device, an ultraviolet lamp perching device and a rolling device which are arranged in sequence from front to back, wherein the cloth reception device comprises a cloth reception underframe, a lower pressing mould which is arranged on the cloth reception underframe and an upper pressing mould which is arranged on the cloth reception underframe and matched with the lower pressing mould in a lifting manner to crimp padding cloth; the wind shielding screen comprises a screen underframe and a screen plate which is arranged on the screen underframe; the size discharging roller comprises a discharging roller main body and a discharging hole which is formed in the discharging roller main body; and a scraper is arranged in the discharging roller main body. According to the double-point coating production line for hot-melt adhesive padding cloth, the unrolling speed of the padding cloth is increased, the continuous production is realized, the work efficiency is improved, the production cost is reduced and the quality of the padding cloth is improved.

The present invention relates to a kind of hot cutting machine for woven bags, consisting of a feeding and adjusting mechanism, inspection device, an output apparatus, a cutting-separation mechanism, a bag conveying and collecting mechanism. The invention has replaced the way of cutting bags by hand and overcome three difficult problems: using silicon electron inspection device to check pictures by silicon light so as to inspect the warp and weft of the bag surface materials in the course of weaving; using pressing bag cutting-separation mechanism to press a bag by a pressure bar and fix it and then cut it with hot knife, which is made of nickel chromium material, heated by adjusting voltage and cut by controlling the temperature and speed so as to achieve non-lose edge on the woven bags after cutting and separating; using chain belt ring caterpillar bag mouth binding mechanism to raise production efficiency by 4 times and save one man operation.

The invention discloses a non-destructive testing method for formaldehyde content of textiles, which is characterized by comprising the following steps: (1) placing a to-be-tested whole textile in a sealed container, feeding air into the sealed container, sending gas containing a to-be-tested volatile-matter sample in the sealed container to an absorption container holding formaldehyde-absorbing solution and allowing the absorbing solution to absorb the gas from the sealed container; (2) continuing to feed air into the sealed container and send the gas in the sealed container into the absorbing solution for at least 30 minutes and then stopping the process that the water absorbs the gas; and (3) taking the absorbing solution obtained in a step (2) to perform formaldehyde qualitative identification or quantitative determination. The method can test the formaldehyde in the whole textile without damaging the textile, and can test the content of low-concentration formaldehyde in the textile.

A digital test system for the dimension variety and distortion of textile includes a marking template (7) for marking a measured sample (6), an illumination box (5) forming a close space, an imaging apparatus (2) for the measured sample image shooting, a fixture for installing the imaging apparatus (2) in the illumination box (5), an illuminator (3) for illuminating the surface of the measured sample, a sample table (4) for arranging and fixing the measured sample (6) in the illumination box (5), a software package for image processing and calculating the dimension variety and distortion, anda computer (1). A digital test method, a arithmetic and a programme for the dimension variety and distortion of textile.

The invention relates to a device and method for testing the fabric color by using a scanner. The normal fabric is subjected to the scanner characteristic by using the fabric standard based on the standard color card. According to the invention, in the presence of multiple light sources and a complex observer, a CIE device independent color coordinate can be obtained according to the RGB value of the scanned measured area (ROI) without expensive equipment such as a colorimeter, a spectrophotometer and a multiple-light-source camera. The fabric color analyzing system is suitable for different materials such as wool, silk or other natural or synthetic fabrics, after a user defines an allowable 2.color difference, the color classification and automatic color matching is conducted on the different materials according to the information in a database. The characterization method can be used in a number of commercial flatbed scanners, the device for testing the fabric color, taken as a quality testing tool in the surface color industrial application field, is used for testing the quality of fabric, picture, paper, leather, plastic, printed matters and the like.

A fiber authentication method collects near infrared spectrum data of fibers to be authenticated, utilizes chemical metrological method to analyze relativity between the near infrared spectrum data of the fibers to be authenticated and near infrared spectrum of standard fiber samples and authenticates whether the fibers to be authenticated belong to a same sort with the standard fiber sample according to relevant coefficients. The fiber authentication method of the present invention only collects near infrared spectrum data of fibers to be authenticated and utilizes chemical metrological method to analyze relativity of near infrared spectrum data of fibers to be authenticated and standard sample fibers to authenticate whether the fiber to be authenticated belongs to a same sort with the standard fiber sample, thus completing authentication in several minutes and bringing accurate authentication results.

A method and related apparatus for shrink-proofing a fabric, typically a knitted textile composed of interlocked loops of yarn made of natural and/or man-made fibers. The loops interlock along stitch rows that may become skewed. According to the invention the fabric is confined from expanding as it is delivered to and discharged from an in-line compression zone free of obstructions such as crimps, bends or kinks. The fabric is confined, preferably resiliently, coming to, passing through and leaving the compression zone so as to accommodate variation of thickness and irregularities of the fabric being compacted in the compression zone. The interlocked loops are organized whereby they are allowed to move toward each other orthogonally along their related stitch row so as to reduce volume of the fabric. Non-woven textiles, papers, papers with additives and the like are shrink-proofed in the same manner.

A gel liner made by starting initially with a one-piece knitted tubular sock-shaped fabric having a closed distal end section of gel impermeable knitted fabric and an open proximal end section of gel impermeable knitted fabric and being a gel permeable loosely knitted fabric. Molding the liner to have a gel cushion layer on its interior surface with the gel passing through and partially embedding the yarns of the proximal fabric section with the outermost portions of the yarns free of gel to form at least one annular seal whereby the proximal end section forming a seal not inhibited in deformation and/or elongation by the fabric when the liner is worn thereby reducing or eliminating any twisting or discomfort of the liner during ambulation caused by the annular seal.

The present invention includes a method and system for correcting web deformation during a roll-to-roll process. The present invention includes controllable mechanical components that are capable of dynamically adjusting the planarity of the web during the roll-to-roll process. By adjusting the web during the roll-to-roll process, the accuracy of the layer-to layer alignment of successive patterning steps is greatly increased thereby enabling the production of electronic structures with lower overlap capacitance and higher resolution. A first aspect of the present invention is a method for correcting web deformation during a roll-to-roll process. The method includes initiating a roll-to-roll process involving a flexible web substrate, detecting deformation in the flexible web substrate during the roll-to-roll process and dynamically aligning the flexible web substrate based on the detected deformation.