CN102419329A - Cotton fiber embedding inspection method - Google Patents
Cotton fiber embedding inspection method Download PDFInfo
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- CN102419329A CN102419329A CN2011102553693A CN201110255369A CN102419329A CN 102419329 A CN102419329 A CN 102419329A CN 2011102553693 A CN2011102553693 A CN 2011102553693A CN 201110255369 A CN201110255369 A CN 201110255369A CN 102419329 A CN102419329 A CN 102419329A
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Abstract
The invention discloses a cotton fiber embedding inspection method. The method comprises the following steps: preparing a cotton fiber sample into an embedding block by utilizing an embedding medium, and then carrying out cross section cutting, utilizing an image acquisition system to shoot a cross section enlarged image during each cutting, and inputting the cross section enlarged images to a computer; processing the data through software so as to realize spatial three-dimensional reconstruction; visually calculating the characteristic values of fibers; and after obtaining the length of each fiber through calculation, carrying out statistical calculation to obtain the detailed length distribution condition of cotton fibers. According to the invention, the lengths of various fibers comprising the cotton fibers can be automatically tested one by one, and corresponding mathematical statistic is carried out, thus accurately grasping the length distribution condition of the sample, realizing a cotton fiber one-by-one arrangement 'Clostridium beijerinckii pattern' which is not realized by any people at present, and obtaining data comprising the principal length, average length, upper half average length, short fiber content and regularity of the cotton fibers, the sample nep quantity and the fineness and maturity of the cotton fibers through analysis.
Description
Technical field the invention belongs to fiber detection technique field, relates to a kind of method of inspection of cotton fiber embedding.
Background technology is in textile industry, and the index that fibrous raw material influences resultant yarn mainly contains long (degree), strong (degree) and thin (degree).Length index is occupied very important position in textile industry, generally speaking, the long and short more fiber rate of length is low more, the length regularity is good more, just helps spinning more.From growing to lacking, line up a bundle fiber of grab sample; Can obtain length distribution " Bear diagram "; " Bear diagram " has very high directive significance for research natural fiber length, but because textile fiber is very thin, the 1g cotton fiber has 220,000 approximately; It almost is impossible accomplishing arrangement with conventional method, only uses as theoretical analysis so " Bear diagram " is general.
For many years, people actively seek to explore the method for measure cotton length index, and method is a lot, are broadly divided into organoleptic examination method (hand pulls tape measurement) and instrument testing method.The instrument testing method is broadly divided into by root method of testing, grouping method of testing and the method for testing that do not divide into groups.International standard (ISO) is manual operations pursuing this basic methods of root method of testing (500 of sample sizes) as reference method but test, and is loaded down with trivial details time-consuming, and when fiber is stretching, can bring some errors.
The typical case of mechanical type cotton fiber length testing instruments represents Y111 type roller length analyser method (seeing GB/T6089.1) and Y121 comb chip Length Instrument method.These class methods are time-consuming and be not easy accurately, are subject to the influence of operating personnel's gimmick, skill level.
Along with the development of photoelectric technology, occurred again according to the shadow appearance, represent that instrument is that the seventies in last century, the U.S. thought that refined Lay company produces 530 according to the shadow appearance, its principle is to utilize photoelectric technology scanning fibrous bundle to obtain to correlate the appearance curve, to tracing analysis acquisition length data.In addition China's independent development Y146 photoelectricity Length Instrument method (see/T6089.2).This method of testing advantage is easy and simple to handle; Instrument is cheap, and shortcoming is that test index is few, and repeatability, repeatability is relatively poor; The photoelectricity length value that test obtains is than leaning on the Y111 modal length; Because China's standard length adopts the upper half mean length of photographic apparatus curve in recent years, and is variant with the Y111 modal length, so be eliminated basically.
The development of Along with computer technology; The higher intelligent cotton fiber length analytical instrument of automaticity has appearred again; Representing instrument is the cotton fiber detecting large volume HVI900 of system, the HVI100 series that U.S. USTER company produces, and the core of its length testing principle remains photographic apparatus curve.
The cotton fiber length testing tool aQura L test philosophy that India develops in recent years is: sample is laid on the card wire row, adopts terminal alignment thereof, through the contrast of each section magnitude of voltage, in 2 minutes, confirm the degree of each length fiber.Can carry out the measurement of self-defined length fiber content, as: short flannel is defined as 12.7 millimeters or 16 millimeters etc., and measures the effective length of preceding 2.5%, 5% fibre length and style.
The above-mentioned fibre length method of inspection respectively has relative merits, but all is to investigate fibrous bundle, obtains length data indirectly, the inreal concrete condition of holding fiber samples.
The AFIS (Advanced FiberInformation System) that has only USTER company to produce that can be used at present the ultimate fibre test in the world, the sample size of AFIS test is big, and speed is fast; But the high speed rotating when dividing card sliver owing to its licker-in is very big to the effect of cotton fiber; Cotton fiber is stressed and probability fracture increases, and in the sample set-up procedure, also can lose a large amount of staple fibres, and cotton knot and impurity also can be measured as staple fibre; Though these all can be revised by approximate; But can not truly reflect the cotton fiber length situation, and cost an arm and a leg, need 1,400,000 yuan/platform of Renminbi approximately.
At present, China's Cotton Inspection system reform of carrying out in an all-round way is carried out upgrading to cotton processing enterprise; Use 400 type baling presses, the bale of cotton adopts the large-scale bag of 227kg, carries out the check of bag bag at processing link; Check data is provided, to realize effective utilization to cotton resource.At present, instrumentation checks the check data that can provide to have: grade, upper half mean length, average length, length regularity index, fracture specific strength, breaking elongation, reflectivity Rd, the yellow degree of depth+b, mic value, percentage of impurity.In spinning process, cotton knot and short fibre content are two important indicators, and it affects quality of yarn and production cost, paid much attention to, but HVI still can not provide these two parameters check data accurately always.
Summary of the invention the objective of the invention is to solve prior art exist low by root cotton fiber length measuring accuracy, test item is few and detect loaded down with trivial details technical matters, and a kind of method of inspection of cotton fiber embedding is provided, to overcome the deficiency of prior art.
To achieve these goals, the technical scheme of the method for inspection of cotton fiber embedding of the present invention is: the cotton fiber sample is fixing with embedding medium (embedding medium is: low-melting-point resin, macromolecular material), make rectangular parallelepiped or right cylinder embedded block; Carry out horizontal section cutting then, the some numerical value of the thickness that at every turn cuts away between the 3-30 micron, concrete setting value is to be not more than fibre diameter to be detected; Every cutting is once with image capturing system picked-up square section enlarged image, and the input computing machine, through software data is handled; The implementation space solid is reproduced, and can calculate the eigenwert of fiber intuitively, such as the length of fiber; Torsion resistance, the mode of appearance of fiber, obtain the length of every fiber through calculating after; Can obtain the detailed length distribution situation of cotton fiber then through statistical computation, cotton fiber knot diameter generally about 600 microns, tie about 1000 microns by mote; Can reach 1400 microns when maximum; Cross section image can be discerned cotton knot and accurate counting, to confirm its content and size, specifically by following technological operation:
1), embedding: obtain a little bundle fiber at first at random, be put on the balance and weigh, note weight data and sample title, again embedding medium is heated to 40-80 ℃; After waiting for that embedding medium dissolves fully,, immerse in the embedding medium, flood fibrous bundle fully fibrous bundle; Keep the temperature-resistant of embedding medium, soak after 5-20 minute and take out, put into mould while hot, hot-forming; In mould, melt up to embedding medium then in heating, hot repressing, purpose guarantees that embedding medium gos deep into the gap between fiber and the fiber completely; Natural cooling subsequently, wait for the embedded block cooling after, embedded block is taken out in the demoulding;
2), section: put into cutting machine to embedded block, the end face of cutting embedded block, set single fiber diameter be d; In order to guarantee that the sample thickness that the continuity of fiber in spatial image is synthetic cut away is d to the maximum at every turn; In order to guarantee complete and continuous property, the suitable redundant data space of reserving, the thickness of each cutting is got d/2; Every cutting is once removed the thin slice that cuts away clean; Guarantee the smooth of embedded block cut surface, then this tangent plane taken a picture once, during photograph and embedded block together a motionless monumented point of relative fixed together be shining into as reference point; Automatically be transferred to computing machine to view data by equipment and carry out the successive image processing, up to having cut whole embedded block;
3), detection and Flame Image Process: in each two field picture; The primary colors of embedding medium as background colour; The tangent plane primary colors of fiber is as foreground, and remaining is removed by computing machine as noise signal automatically; Only keep background colour and foreground; The tangent plane of each root fiber all can form the pixel group zone of a pixel UNICOM in picture, the picture of front and back two frames is the initial point alignment with the reference point that is shining in advance in the image, if the pixel region of a fiber tangent plane of the pixel region of some fiber tangent planes of former frame and back one frame has crossing pixel; Explain that then these two pixel group zones are same fiber tangent planes on two end faces; Calculate the central point of these two fiber interface pixel regions by software by the shape invariance principle, note the central shaft coordinate of this central point, if there is not the pixel that intersects in the image of front and back two frames as this root fiber; Explain that this fiber interface pixel group in the former frame image is end points pixel group (so in a two field picture not having corresponding pixel group because fiber has to have certainly in certain thickness front and back two two field pictures when cutting); Get off the peripheral shape data recording of each fiber tangent plane, carry out the space three-dimensional image by software and synthesize, and then calculate the parameter of wanting; Move in circles and dispose up to all pictures; Accurately measure length information, obtain average length, upper half mean length, short fibre content, the regularity of fiber, cotton knot quantity and the cotton fiber fineness and the degree of ripeness of sample, get cotton fiber according to the length distribution situation of sample and arrange Bear diagram by root by the root fiber.
Said embedding medium is a low melting point thermosol resin, and the color of used resin and fiber to be detected have a shade of gray poor on color.
The length that the present invention can accomplish the multiple fiber that comprises cotton fiber is automatically by the root test, and does corresponding mathematical statistics, thereby accurately holds the length distribution situation of sample, arranges " Bear diagram " to realize the cotton fiber that people never realized by root.These basic datas have been arranged, and the cotton length index comprises that modal length, average length, upper half mean length, short fibre content, regularity can obtain through analyzing naturally.This technology can also accurately obtain the cotton knot quantity of sample and the data of cotton fiber fineness and degree of ripeness.
The method of inspection of embodiment cotton fiber embedding of the present invention, press following technological operation:
1, embedding: obtain a little bundle fiber at first at random, be put on the balance and weigh, note weight data and sample title, again embedding medium is heated to 40-80 ℃; After waiting for that embedding medium dissolves fully,, immerse in the embedding medium, flood fibrous bundle fully fibrous bundle; Keep the temperature-resistant of embedding medium, soak after 5-20 minute and take out, put into mould while hot, hot-forming; In mould, melt up to embedding medium in heating then, in hot pressing, purpose guarantees that embedding medium gos deep into the gap between fiber and the fiber completely; Natural cooling subsequently, wait for the embedded block cooling after, embedded block is taken out in the demoulding;
2, section: is the fiber sample that fixes embedded block, is fixed on the microtome, and the sample of adjustment microtome advances to be measured; Promptly whenever cut an embedded block and be cut off fixing length, this length is designated as d, opens microtome; Cut into slices; Whenever sweep or blow off embedding medium and the fiber sample that is cut off after cutting a slice, keep tangent plane clean, with camera installation tangent plane is being taken a picture or scanning the view picture tangent plane.Real-time being kept in the peripheral memory device of the view data in the imaging device, to handle so that carry out late time data, whole slicing processes is accomplished in fiber sample section appearance never again on the tangent plane of this process that moves in circles in embedded block;
3, detection and Flame Image Process: view data by being that unit takes out from memory device with the frame, in each two field picture, the primary colors of embedding medium as background colour; The tangent plane primary colors of fiber is as foreground; Remaining handles automatic removal as noise signal by computer software, only keeps background colour and foreground; Because sample space between the fiber fixedly the time is filled by embedding medium; The primary colors of fiber and the primary colors of embedding medium are being made embedded block in the past just with the selecting of artificial high shade of gray difference, and the cross-section tangent plane picture of fiber will independently distribute with the pixel group zone of independent connectedness, in the pixel group of each unit; The geometric center point that calculates this group with software according to the shape invariance rule is designated as (x to this point as the geometrical central axis point that sample three bit spaces reproduce
i, y
i, z
i); In each frame picture every fiber all will produce the fiber section of a correspondence; In the whole frame picture if the transversal section of n root fiber is arranged, will have n pixel group center point coordinate, in continuous two two field pictures in front and back; If the common factor of the pixel value in the corresponding pixel group zone in some pixel groups zone in one frame of front and the present frame is not empty; Explain that this this two pixel group is that the front and back of same fiber connect a section, again the eigenwert of this section fibre between this two two field picture can be undertaken by the eigenwert of these two sections virtual synthetic, such as the axial line distance d that calculates former and later two pixel groups
Li 2=(x
i-x
I-1)
2+ (y
i-y
I-1)
2+ (d)
2If have the n two field picture so the length of single fiber be ∑ d
Li1If think that the edge line to deserved pixel group forms 3-D view in can be with the edge line of each pixel group adjacent with the front and back frame of the single torsion resistance of computed image; Calculate at generation math matrix function, get cotton knot quantity and cotton fiber fineness and degree of ripeness that the cotton length index comprises modal length, average length, upper half mean length, short fibre content, regularity and sample.
The length information that the root measurement comprise cotton fiber can be accurately pursued in realization of the present invention.With industries such as examinations of fibers wide application prospect is arranged at cotton processing industry, cotton textile industry, cotton breeding industry, cotton research scientific research institutions, the fine inspection of specialty mechanism cotton, wadding.
Innovative point of the present invention is: test philosophy any test philosophy of finding different from the past; But modern image acquisition technology and pictorial data treatment technology have been used; Invented the sample embedding techniques; The result of test is not independent comprises by the length information of root fiber and disposable energy measurement and obviously to be different from other statistics method of testings of passing by to other geometry information of fiber.The result of test more accurately, truly.
Have report to show, the U.S. has set about organizing seminar to use modern computer image processing techniques Development of New Generation cotton fiber testing tool (Yao Mu academician's speech), hopes that China can not fall behind again.
Claims (2)
1. the method for inspection of a cotton fiber embedding is characterized in that by following technological operation:
1), embedding: obtain a little bundle fiber at first at random, be put on the balance and weigh, note weight data and sample title, again embedding medium is heated to 40-80 ℃; After waiting for that embedding medium dissolves fully,, immerse in the embedding medium, flood fibrous bundle fully fibrous bundle; Keep the temperature-resistant of embedding medium, soak after 5-20 minute and take out, put into mould while hot; Hot-forming, in mould, melt hot repressing then up to embedding medium in heating; Natural cooling, wait embedded block cooling after, embedded block is taken out in the demoulding;
2), section: put into cutting machine to embedded block; The end face of cutting embedded block, set single fiber diameter be d, cut the thickness of embedded block at every turn and get d/2; Every cutting is once removed the thin slice that cuts away clean; Guarantee the smooth of embedded block cut surface, then this tangent plane taken a picture once, during photograph and embedded block together a motionless monumented point of relative fixed together be shining into as reference point; Automatically be transferred to computing machine to view data by equipment and carry out the successive image processing, up to having cut whole embedded block;
3), detection and Flame Image Process: in each two field picture, as background colour, the tangent plane primary colors of fiber is as foreground the primary colors of embedding medium; Remaining is as noise signal; Automatically removed by computing machine, only keep background colour and foreground, the tangent plane of each root fiber all can form the pixel group zone of a pixel UNICOM in picture; The picture of front and back two frames is the initial point alignment with the reference point that is shining in advance in the image; If the pixel region of some fiber tangent planes of former frame has crossing pixel with the pixel region of a fiber tangent plane of back one frame, explain that then these two pixel group zones are same fiber tangent planes on two end faces, are calculated the central point of these two fiber interface pixel regions by the shape invariance principle by software; Note the central shaft coordinate of this central point as this root fiber; If there is not crossing pixel in the image of front and back two frames, explain that this fiber interface pixel group in the former frame image is the end points pixel group, get off the peripheral shape data recording of each fiber tangent plane; Carrying out the space three-dimensional image by software synthesizes; And then calculate the parameter of wanting, moving in circles disposes up to all pictures, accurately measures the length information by the root fiber; Obtain average length, upper half mean length, short fibre content, the regularity of fiber, cotton knot quantity and the cotton fiber fineness and the degree of ripeness of sample, get cotton fiber according to the length distribution situation of sample and arrange Bear diagram by root.
2. the method for inspection of cotton fiber embedding according to claim 1 is characterized in that said embedding medium is a low melting point thermosol resin, and the color of used resin and fiber to be detected have a shade of gray poor on color.
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| CN2011102553693A CN102419329A (en) | 2011-08-23 | 2011-08-23 | Cotton fiber embedding inspection method |
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| CN2011102553693A CN102419329A (en) | 2011-08-23 | 2011-08-23 | Cotton fiber embedding inspection method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372114A (en) * | 2015-11-20 | 2016-03-02 | 宜宾海丝特纤维有限责任公司 | Fiber slice embedding agent and use method thereof |
| CN108362609A (en) * | 2018-03-07 | 2018-08-03 | 安徽财经大学 | A kind of multinomial fineness index measurement method of cotton fiber |
| CN113008373A (en) * | 2021-03-01 | 2021-06-22 | 嘉兴学院 | Method for measuring loose fiber color |
| CN114877810A (en) * | 2022-06-08 | 2022-08-09 | 石河子大学 | Cotton fiber length detection device based on machine vision and application method |
-
2011
- 2011-08-23 CN CN2011102553693A patent/CN102419329A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372114A (en) * | 2015-11-20 | 2016-03-02 | 宜宾海丝特纤维有限责任公司 | Fiber slice embedding agent and use method thereof |
| CN108362609A (en) * | 2018-03-07 | 2018-08-03 | 安徽财经大学 | A kind of multinomial fineness index measurement method of cotton fiber |
| CN108362609B (en) * | 2018-03-07 | 2019-07-12 | 安徽财经大学 | A kind of multinomial fineness index measurement method of cotton fiber |
| CN113008373A (en) * | 2021-03-01 | 2021-06-22 | 嘉兴学院 | Method for measuring loose fiber color |
| CN113008373B (en) * | 2021-03-01 | 2024-01-12 | 嘉兴学院 | Method for measuring color of loose fiber |
| CN114877810A (en) * | 2022-06-08 | 2022-08-09 | 石河子大学 | Cotton fiber length detection device based on machine vision and application method |
| CN114877810B (en) * | 2022-06-08 | 2023-09-29 | 石河子大学 | Cotton fiber length detection device based on machine vision and application method |
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Application publication date: 20120418 |