CN101246121B - Yarn constituent detecting method based on polarizing microscope - Google Patents
Yarn constituent detecting method based on polarizing microscope Download PDFInfo
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- CN101246121B CN101246121B CN2008100349820A CN200810034982A CN101246121B CN 101246121 B CN101246121 B CN 101246121B CN 2008100349820 A CN2008100349820 A CN 2008100349820A CN 200810034982 A CN200810034982 A CN 200810034982A CN 101246121 B CN101246121 B CN 101246121B
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Abstract
The present invention relates to a method for measuring the yarn component basing on the micropolariscope, and the method adopts the micropolariscope for detecting the fiber component of pure and blended yarn and each component ratio. The yarn sample with short segment is scattered to discrete fiber, the discrete fiber is leaded to be arranged trimly in a certain direction and is prepared to the sample piece which can be observed in the micropolariscope, the clear image of the sample piece under the micropolariscope is obtained, and the computer processes the image and outputs the fiber component style and blending ratio. The invention can accurate identify the style of the fiber comprising the yarn; can accurately detect the content proportion of each fiber component of the blending yarn; can totally realize the no-pollution testing and conforms to the basic national policy of energy saving and discharging reducing; the high-pressure electrostatic technique and computer image processing technique are adopted for realizing the automatic stock layout and automatic numbering to the fiber thereby realizing the yarn detecting with high precision and high efficiency, has low testing cost and facilitates the generalizing and applying.
Description
Technical field
The invention belongs to textile technology field, particularly relate to a kind of Yarn constituent detecting method based on polarization microscope.
Background technology
Yarn is the complex of fiber, and the content that accurately detects the composition of fiber in the yarn and each composition is in weaving production management, product analysis design, and the problem that often runs into such as scientific research, historical archaeology, cracking of cases, import and export commodity inspection.At present, the detection of Yarn constituent is mainly observed by outward appearance, untwisting separates the method for observing because the physical dimension of fiber is very little, optical microscope commonly used observe fiber vertically, transverse features to be to confirm fibre composition.In addition, also can adopt methods such as feel range estimation, burning, chemical dissolution, density gradient and dye coloring tentatively to determine the affiliated big class of fiber.But if the content of each fibre composition in the quantitative test mixed yarn, then need be by more complicated method.For the different fibre fractionation of chemical constitution, as wash/cotton, hair/nitrile etc. is commonly used is chemical dissolution method; And,, calculate each components contents with microscopically artificial cognition and the method for counting its radical and diameter respectively usually as cotton/fiber crops etc. to the identical or essentially identical fibre fractionation of chemical constitution.These two kinds of methods all have low, the defect of high cost of testing efficiency, particularly chemical dissolution method is owing to need the certain density chemical reagent of configuration, in examination of fibers department use at present, to produce a large amount of discarded chemical solvent, very easily contaminated environment, hazard detection personnel healths every day.Other has capacitance method to be used to detect the Yarn constituent formation, it is CN1403821 that on March 19th, 2003 disclosed publication number, application number is 02136058.8 Chinese patent application, be entitled as " a kind of method and apparatus that detects yarn qualities and composition proportion ", and to disclose publication number be CN1462879A on Dec 24th, 2003, application number is 03129518.5 Chinese patent application, be entitled as " a kind of method and system of measuring the quality of polynary yarn ", two parts of patents state similar Yarn constituent method of testing, this method is detected because Yarn constituent proportioning difference causes the variation of yarn capacitance by capacitive transducer, determines the Yarn constituent proportioning with this.But this method is under the known situation of two kinds of fibre fractionations of yarn, and serves as that realize on the basis with a large amount of empirical datas, is restricted so apply.
Summary of the invention
Technical matters to be solved by this invention provides a kind of employing polarization microscope and differentiates fiber, adopts computer image processing technology to obtain a kind of novel Yarn constituent detecting method based on polarization microscope of image information.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Yarn constituent detecting method based on polarization microscope is provided, comprises the following steps:
(1) sample preparation: chopped strands, obtain the neat yarn short-movie section sample of length, sample is dispersed as discrete fibre;
(2) stock layout: fiber is being placed on the microslide in the middle of two electrodes of high-voltage electrostatic field, make the discrete fibre polarization and be orientated along direction of an electric field is consistent;
(3) system microslide: disconnect the electric field power supply, the remaining static on the leadout electrode, will be on microslide the fiber of proper alignment, make the microslide sample that can under polarization microscope, observe;
(4) polarization microscope test: regulate polarization microscope, obtain the picture rich in detail of print to be measured;
(5) Flame Image Process: computing machine is handled image, obtains color, diameter and the radical information of each component fibre;
(6) identification fibre composition, calculate blending ratio: the colouring information of fiber to be measured in the above-mentioned steps (5) and the information in diameter information and the database are compared, mate, judge fiber type, the while is in conjunction with the blending ratio of radical information calculations yarn to be measured.
The length of described yarn short-movie section is 1～5mm.
After the energized of described high-voltage electrostatic field, from zero regulation voltage.
Polarization microscope can be used for differentiating exactly fiber.Polarization microscope is a kind of special optical microscope that has inserted the polarizer and analyzer in optical system, is mainly used in the anisotropy and the birefringence of specimen.Textile fibres is axisymmetric anisotropic body, because the difference of the The Nomenclature Composition and Structure of Complexes of the degree of orientation of fiber molecule and molecular backbone, side group makes the birefraction of different types of fiber be very different, also presents different colors under polarization microscope.The present invention is used for the Yarn constituent check according to this phenomenon with polarization microscope.
Beneficial effect
1. can accurately differentiate the fiber type that constitutes yarn.
2. can accurately detect the content ratio of each fibre fractionation of scribbled.
3. be physical process, can realize pollution-free detection fully, meet the fundamental state policy of energy-saving and emission-reduction.
4. adopt high voltage electrostatic technique and computer image processing technology to realize automatic nesting, count fiber automatically, thereby realize that high precision, high efficiency yarn detect, and it is low to detect cost, is beneficial to and applies.
Description of drawings
Fig. 1 is that the present invention realizes the operating process synoptic diagram that Yarn constituent detects.
Fig. 2 adopts high voltage electrostatic technique to realize the structural representation of fiber samples proper alignment among the present invention.
Among the figure: 1-microslide 2-electrode 3-fiber
Fig. 3 is spandex fibre image that obtains in polarization microscope detects.
Fig. 4 is acrylic fiber image that obtains in polarization microscope detects.
Fig. 5 is polyethylene fibre image that obtains in polarization microscope detects.
Fig. 6 be adopt the method for the invention to wash/detection of nitrile mixed yarn in the image that obtains.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 1, 2, the fibre composition discrimination method of scribbled mainly may further comprise the steps:
(1) sampling: from yarn to be measured, randomly draw some of sample of yarn, cut certain-length on every one thread (according to curling and the obvolvent situation of concrete fiber, generally between 1～5mm) the short-movie section be placed on the microslide, with fine needle its dispersion is split into the staple in bulk shape.
(2) stock layout: referring to shown in Figure 2, fiber 3 is placed in the middle of two electrodes 2 of high-voltage electrostatic field, energized from zero regulation voltage, makes fiber 3 in microslide 1 upper edge electrode 2 proper alignment.
(3) system microslide: disconnect the electric field power supply, the remaining static on the leadout electrode, will be on microslide the fiber of proper alignment, make the microslide sample that can under polarization microscope, observe.
(4) detect: the polarizer and the analyzer quadrature that at first make polarization microscope, at this moment the visual field is dark entirely, places the polarizer and analyzer angle at 45 that fiber makes itself and quadrature then, to obtain maximum light intensity, at this moment fiber is bright, obtains the picture rich in detail of fiber to be measured.
(5) Flame Image Process: the appliance computer image processing techniques identifies the colouring information of fiber from obtain image, diameter information, and radical information.
(6) identification fibre composition, calculate blending ratio: the colouring information of fiber to be measured in the above-mentioned steps (5) and the information in diameter information and the database are compared, mate, judge fiber type, the while is in conjunction with the blending ratio of radical information calculations yarn to be measured.
Above-mentioned Yarn constituent detecting method, be applicable to the composition detection of pure fibers spinning, and the fibre composition of scribbled and blending ratio detection, fiber type be can survey and common natural fiber and man-made fiber comprised, as cotton, wool, the rabbit hair, silk, bast-fibre, viscose glue, vinegar ester, terylene, nylon, tygon, polypropylene, polyvinyl etc., and industrial fortifying fibre, as aramid fiber, carbon fiber, glass fibre, ultra high modulus polyethylene fiber peacekeeping basalt fibre etc.
Claims (3)
1. the Yarn constituent detecting method based on polarization microscope comprises the following steps:
(1) sample preparation: chopped strands, obtain the neat yarn short-movie section sample of length, sample is dispersed as discrete fibre;
(2) stock layout: fiber is being placed on the microslide in the middle of two electrodes of high-voltage electrostatic field, make the discrete fibre polarization and be orientated along direction of an electric field is consistent;
(3) system microslide: disconnect the electric field power supply, the remaining static on the leadout electrode, will be on microslide the fiber of proper alignment, make the microslide sample that can under polarization microscope, observe;
(4) polarization microscope test: regulate polarization microscope, obtain the picture rich in detail of fiber to be measured;
(5) Flame Image Process: computing machine is handled image, obtains color, diameter and the radical information of each component fibre;
(6) identification fibre composition, calculate blending ratio: the colouring information of fiber to be measured in the above-mentioned steps (5) and the information in diameter information and the database are compared, mate, judge fiber type, the while is in conjunction with the blending ratio of radical information calculations yarn to be measured.
2. a kind of Yarn constituent detecting method based on polarization microscope according to claim 1 is characterized in that: the length of described yarn short-movie section is 1～5mm.
3. a kind of Yarn constituent detecting method based on polarization microscope according to claim 1 is characterized in that: after the energized of described high-voltage electrostatic field, from zero regulation voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008100349820A CN101246121B (en) | 2008-03-21 | 2008-03-21 | Yarn constituent detecting method based on polarizing microscope |
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| CN2008100349820A CN101246121B (en) | 2008-03-21 | 2008-03-21 | Yarn constituent detecting method based on polarizing microscope |
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| CN101246121B true CN101246121B (en) | 2010-09-08 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493449B (en) * | 2008-12-19 | 2012-06-27 | 清华大学深圳研究生院 | Fiber identification method and measurement method for content of fiber constituent in blended fabric |
| CN103424539A (en) * | 2012-05-25 | 2013-12-04 | 上海市纺织科学研究院 | Quantitative analysis method of cotton/silk cotton blended product |
| WO2014101174A1 (en) * | 2012-12-31 | 2014-07-03 | 广东工业大学 | Method for identifying fibre category |
| CN105136839B (en) * | 2015-10-12 | 2023-11-17 | 五邑大学 | Method and device for measuring fiber content based on microscopic counting of melting difference |
| US11402335B2 (en) * | 2017-09-14 | 2022-08-02 | Uster Technologies Ag | Fiber blend identification and ratio measurement |
| CN107561078A (en) * | 2017-10-17 | 2018-01-09 | 北京和众视野科技有限公司 | Textile fiber detection method |
| CN109633132B (en) * | 2018-11-16 | 2021-08-24 | 绍兴文理学院元培学院 | Blended yarn component ratio testing method |
| CN111521612B (en) * | 2020-06-19 | 2023-05-12 | 江苏澄信检验检测认证有限公司 | Quantitative analysis method for fiber content in lyocell fiber blended product |
| CN113176261A (en) * | 2021-04-13 | 2021-07-27 | 浙江毅聚新材料有限公司 | Method for detecting fiber doubling rate |
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Inventor after: Qiu Yiping Inventor after: Ji Feng Inventor after: Zhao Yi Inventor after: Qiu Xiaodan Inventor after: Gao Tianqi Inventor after: Chu Xiaolu Inventor after: Yang Ruoqi Inventor after: Pan Wei Inventor before: Qiu Yiping Inventor before: Ji Feng Inventor before: Zhao Yi Inventor before: Qiu Xiaodan Inventor before: Gao Tianqi Inventor before: Chu Xiaolu Inventor before: Yang Ruoqi |
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