CN102926075A - Tuft manufacturing method - Google Patents
Tuft manufacturing method Download PDFInfo
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- CN102926075A CN102926075A CN2012103281012A CN201210328101A CN102926075A CN 102926075 A CN102926075 A CN 102926075A CN 2012103281012 A CN2012103281012 A CN 2012103281012A CN 201210328101 A CN201210328101 A CN 201210328101A CN 102926075 A CN102926075 A CN 102926075A
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Abstract
The invention provides a method for manufacturing samples or tufts for fiber length testing, and the method is characterized by comprising the following steps: 1, manufacturing ribbons: manufacturing loose fiber samples to be tested into ribbons in which fibers are straightly, parallelly and randomly arranged; and 2, manufacturing tufts: clamping any cross section of a ribbon, and combing away floating fibers so as to obtain a tuft. The method disclosed by the invention has the technical advantages of strong sample representativeness, small accidental errors, simplicity and rapidness in operation, and low hardware cost.
Description
The present invention is that application number is 201210106711.8, and the applying date is on 04 12nd, 2012, and name is called dividing an application of a kind of fibre length fast and low-cost measuring method.
Technical field
The present invention relates to the preparation method of a kind of palpus clump be used to carrying out the fibre length measurement.
Background technology
The matter of utmost importance that exploitation fibre length measuring system need solve is method for making sample, namely how to produce the sample for test from the laboratory sample that collects---fibre bundle or palpus clump.The method of making at present the palpus clump can be divided into two classes substantially: the palpus clump that (1) one end is neat, and fiber sample is lined up the neat fibre bundle of an end by mode manual or mechanical or the two combination measure; (2) random alignment palpus clump, random gripping fiber (bite may drop on arbitrary cross section of every fiber total length) in sample, the fiber head end that stretches out clamping line (straight line) is carried out combing make numerous straightening of fibers parallel, become the stretch parallel palpus Cong Jinhang of random alignment on the clamping line and measure.
First kind method for making sample is that fibre bundle is arranged in the neat palpus clump of an end, and the principle of this method for making sample is simply direct, is used for for a long time traditional roller type, comb tablet formula apparatus indirect labor's test.Wherein Y111 type roller type fibre diagram machine adopts first the device of extending that fiber is made ribbon, then with the auxiliary manual operations of apparatus ribbon is organized into the neat fibre bundle of an end; Y131 type comb tablet formula length analyzer also is first fiber to be made ribbon, and is then auxiliary lower from the bar end lay of choosing at the comb tablet apparatus, lines up the neat fibre bundle of an end.The workload hand-manipulated of these two kinds of methods is very large, and the length that expends time in requires high to tester's technical ability.The eighties in last century, the Full automatic capacitance type fibre diagram machine of research institute of Australian Union exploitation was also continued to use first kind method for making sample, it is to utilize the special-purpose sample preparation machinery of automation that ribbon is lined up the neat fibre bundle of an end automatically, its sample preparation generally also needs about 2 hours, and the sample of its making, the concordant property fluctuation of same end is often greater than 2mm, this has exceeded the required precision of cotton fiber examination criteria, so this instrument only has certain application in the wool type fiber field.The key issue of first kind method for making sample is how quickly and accurately fibre bundle to be arranged in the neat palpus clump of an end.
For simplifying the method for testing of short-staple length, Hertel proposed according to shadow machine method of testing in 1940, comprise brand-new sample preparation and fibre length index calculating method (figrogram is theoretical), after this lot of domestic and international scholar's research and improved figrogram are theoretical, and several enterprises develop the photograph shadow machine of cotton fiber length test usefulness.Generation fibre length is utilized the comb sampling method according to the shadow instrument the earliest, at first manually a certain amount of fiber is hung on the comb, then with two combs repeatedly to the comb, until the straightening of fibers of two comb tablet front hangings is parallel, without floating fiber, be evenly arranged into that (fiber of broach back is owing to intersecting, tangling, be crimped onto the together resistance of generation by a slice of thick gradually attenuation, reach relative equilibrium with the pulling force that when comb produced), two combs that overwork fiber are used for test, and the fibre sheet of hanging on the comb is known as must clump.The advantage of the method is that sample preparation is quick, convenient, and the key technology of its success is that the figrogram theory one that Hertel proposes is derived the palpus clump line density curve of random alignment on comb tablet (each cross section of arbitrary fiber is equated by the probability that broach tangles) and the relation of fiber length distribution.
Domestic and international widely used HVI system for testing cotton fiber length, the quick cotton fiber ability meter of XJ128 etc. all adopt according to shadow machine principle of instrument at present, on the basis of tradition according to the shadow machine, have realized the full automation of sampling and comb clipping sample.10g left and right sides sample is put into the porose cylinder sampler of periphery, sampling arm makes it slightly rouse the circular hole that spills sampler with certain pressure compressing cotton fiber, then the empty comb of linear is clipped on the cylinder outer wall of rotation gripping and exposes the fiber in hole, cotton fiber is shape cotton fiber bundle in a row on the comb folder, and this fibre bundle is parallel stretching after the hairbrush combing.The method belongs to the Equations of The Second Kind method for making sample.This full-automatic method for making sample fast, simply, but, multidigit scholar proof is because fiber is to hang on the draw point of comb both at home and abroad, fiber has slippage, tangles and Loss when sampling, so that the inside and outside both sides of comb fiber distributes asymmetric, the fiber distribution of stretching out the clamping line is indefinite with the former distribution relation of sample, and therefore actual sampling distribution has gap with the cross-sectional sampling theoretical distribution that Hertel proposes.And because the fiber that has may be wrapped in the comb root, such fiber might some sections stretches out the clamping line, thus the HVI sensing equipment can not measure complete must clump, can only be from beginning measurement from comb clamp a distance.This method for making sample can not satisfy the basic demand of Equations of The Second Kind sample preparation form fully in summary.
Utilizing the Equations of The Second Kind method for making sample to produce the random raw footage of must clump and obtaining sample distributes and need satisfy following primary condition: (1) must be from fiber sample randomly gripping or crawl fiber; (2) behind the gripping fiber any slippage can not be arranged, come off, lose and fiber is repeated the phenomenon of repeatedly clamping; (3) be distributed with definite functional relation by the raw footage of gripping fiber length distribution and sample.
Therefore, develop a kind of Simple fast and satisfy Equations of The Second Kind method for making sample primary condition must the clump preparation method be quick and precisely to measure the basis of fibre length.
Summary of the invention
The purpose of this invention is to provide a kind of simple to operate, quick, comprise complete must clump information be used for that fibre length measures must the clump preparation method.
In order to achieve the above object, technical scheme of the present invention has provided a kind of palpus clump preparation method, it is characterized in that, step is:
The first step, produce ribbon: the ribbon of bulk fibre sample to be measured being made straightening of fibers, parallel, random alignment;
Second step, produce must the clump: arbitrary cross section of gripping fibers bar, the comb remove floating fiber, make must the clump.
Preferably, the described first step comprises following substep: take by weighing 0.1～1.0g fiber sample to be measured, remove wherein larger impurity, with its garnetting, mix, then repeatedly extend 1～10 time by the fiber device of extending, make fiber along axially the stretching of ribbon, parallel and random alignment, make a straight bright and clean ribbon.
Preferably, the described first step comprises following substep: pull from the strip of semi-products and get one section sample, or produce fiber web with the carding machine combing, make ribbon through the device of extending again.
Preferably, described second step comprises following substep: clamp at random the arbitrary cross section of ribbon with clamp, guarantee that the clamping line is axially vertical with ribbon, then pull the fiber that is not held, and with comb be parallel to the clamp mouth by above or below insert ribbon, comb removes floating fiber, and comb palpus clump ending, rear comb root amount to combing 2～6 times first; Then being close to former clamp mouth clamping with another clamp must clump, removes initial clamp, and repeats the aforesaid operations comb and remove other end floating fiber, and that makes that both-end can be used for testing must clump.
Must the clump preparation method having the following advantages of patent proposition of the present invention: the raw footage of (1) palpus clump distribution of lengths and sample is distributed with fixing, clear and definite functional relation, can be by the distribution of lengths of palpus clump distribution of lengths fiber that accurate Calculation is surveyed; (2) typical sample is strong, the long and short fiber of random distribution all can exist probability to be clamped by clamp by it on the ribbon, the information content that the palpus clump is comprised is maximum, the most perfect, and respectively to after the two ends combing of palpus clump, can make two samples that stretch out the clamping line left and right sides; (3) accident error is little, does not have any slippage, break-off after fiber is held, and does not exist a fiber repeatedly to be gripped phenomenon at clamping line place; (4) simple to operate, quick; (5) can measure complete palpus clump, needn't leave clamping line certain distance and begin to measure; (6) hardware cost is low.
Description of drawings
Fig. 1 is the ribbon schematic diagram;
Fig. 2 is palpus clump manufacturing process schematic diagram;
Fig. 3 is must the clump schematic diagram.
The specific embodiment
For the present invention is become apparent, hereby with preferred embodiment, and cooperate accompanying drawing to be described in detail below.Should be understood that these embodiment only to be used for explanation the present invention 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 limited range equally.
The invention provides a kind of palpus clump preparation method, the steps include:
The first step, produce ribbon: the ribbon of bulk fibre sample to be measured being made straightening of fibers, parallel, random alignment.
Take by weighing 0.1～1.0g fiber sample to be measured, remove wherein larger impurity, with its garnetting, mix, then repeatedly extend 1～10 time by the fiber device of extending, make fiber along ribbon axially stretch, parallel and random alignment, make a straight bright and clean ribbon, referring to Fig. 1.Also can from the strips such as the sliver of semi-products, wool top, pull and get one section sample, or produce fiber web with Small Sized Carding Machines combing bulk fibre, make ribbon through the device of extending again.The described fiber device of extending is the preparation device of cotton fiber length grouping test usefulness.
Second step, producing must clump: being made by the ribbon that obtains must clump, must clump refers to send into when length testing the fiber sample of Instrument sensor.
Clamp at random the arbitrary cross section of ribbon with clamp, guarantee that the clamping line is axially vertical with ribbon, then pull the fiber that is not held, and with comb be parallel to the clamp mouth by above or below insert ribbon, comb removes floating fiber, comb palpus clump ending, rear comb root amount to combing 2～6 times first, referring to Fig. 2.Then being close to former clamp mouth clamping with another clamp must clump, removes initial clamp, and repeats the aforesaid operations comb and remove other end floating fiber, make wide approximately 5cm heavily approximately the Dual-Ended Loop Test of 10～50mg with must clump, referring to Fig. 3.
The below further specifies the present invention with three specific embodiments.
Embodiment 1 raw cotton length testing
The first step, get the 300mg bombax cotton, remove wherein larger impurity, with its garnetting, mix, then extend 5 times by the fiber device of extending, make fiber along ribbon axially stretch, parallel and random alignment, make one mix, straight bright and clean ribbon.
Second step, clamp at random the arbitrary cross section of ribbon with clamp, make the clamping line axially vertical with ribbon, pull the fiber that is not held, and insert ribbon combing 3 times by the above and below respectively with special-purpose comb parallel clamp jaws, comb removes floating fiber, then is close to former clamp mouth clamping palpus clump with another clamp, removes initial clamp, and repeat the aforesaid operations comb and remove other end floating fiber, make wide approximately 5cm heavily approximately the Dual-Ended Loop Test of 30mg with must clump.
Fiber length testing in the embodiment 2 spinning process semi-products
From semi-products, choose one section sliver, clamp at random the arbitrary cross section of sliver with clamp, make the clamping line axially vertical with ribbon, pull the fiber that is not held, and insert the ribbon combing for several times by the above and below respectively with special-purpose comb parallel clamp jaws, comb removes floating fiber, then be close to former clamp mouth clamping palpus clump with another clamp, remove initial clamp, and repeat the aforesaid operations comb and remove other end floating fiber, make the heavily approximately Dual-Ended Loop Test usefulness palpus clump of 0.05g of wide approximately 5.5cm, see Fig. 3.
Embodiment 3 chemical fibre length testings
Because the production process of chemical fibre experience, often plurality of fibers accumulates a tuftlet, is difficult to make directly that single fiber separates fully, the ribbon of random alignment with the device of extending.Two pacings examination length below needing.
The first step, produce the polyster fibre net through the Small Sized Carding Machines combing, make the fiber in the net reach the filament released state.From net, get the 0.50g fiber, extend 3 times with the fiber device of extending, make fiber along ribbon axially stretch, parallel and random alignment, make one mix, straight bright and clean ribbon.
Second step, clamp at random the arbitrary cross section of ribbon with clamp, make the clamping line axially vertical with ribbon, pull the fiber that is not held, and with special-purpose comb parallel clamp jaws by above or below insert ribbon, comb removes floating fiber, then is close to former clamp mouth clamping palpus clump with another clamp, removes initial clamp, and repeat the aforesaid operations comb and remove other end floating fiber, make wide approximately 5.5cm heavily approximately the Dual-Ended Loop Test of 0.04g with must clump.
Claims (4)
1. a palpus clump preparation method is characterized in that, step is:
The first step, produce ribbon: the ribbon of bulk fibre sample to be measured being made straightening of fibers, parallel, random alignment;
Second step, produce must the clump: arbitrary cross section of gripping fibers bar, the comb remove floating fiber, make must the clump.
As claimed in claim 1 a kind of must the clump preparation method, it is characterized in that: the described first step comprises following substep: take by weighing 0.1～1.0g fiber sample to be measured, remove wherein larger impurity, with its garnetting, mix, then repeatedly extend 1～10 time by the fiber device of extending, make fiber along ribbon axially stretch, parallel and random alignment, make a straight bright and clean ribbon.
As claimed in claim 1 a kind of must the clump preparation method, it is characterized in that: the described first step comprises following substep: pull from the strip of semi-products and get one section sample, or produce fiber web with the carding machine combing, make ribbon through the device of extending again.
As claimed in claim 1 a kind of must the clump preparation method, it is characterized in that: described second step comprises following substep: clamp at random the arbitrary cross section of ribbon with clamp, guarantee that the clamping line is axially vertical with ribbon, then pull the fiber that is not held, and be parallel to the clamp mouth with comb and insert ribbon by the above and below respectively, comb removes floating fiber, and comb palpus clump ending, rear comb root amount to combing 2～6 times first; Then being close to former clamp mouth clamping with another clamp must clump, removes initial clamp, and repeats the aforesaid operations comb and remove other end floating fiber, makes test with must clump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103281012A CN102926075A (en) | 2012-04-12 | 2012-04-12 | Tuft manufacturing method |
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| CN2012103281012A CN102926075A (en) | 2012-04-12 | 2012-04-12 | Tuft manufacturing method |
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| CN201210106711.8A Division CN102645166B (en) | 2012-04-12 | 2012-04-12 | Rapid low-cost measuring method for fiber length |
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| CN102926075A true CN102926075A (en) | 2013-02-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548188A (en) * | 2016-01-19 | 2016-05-04 | 东华大学 | Random tuft gradual separation model based short fiber content measurement calculating method |
| CN106769652A (en) * | 2016-12-27 | 2017-05-31 | 东华大学 | The acquisition methods of line density coefficient curve and standard palpus complex curve |
| CN110389059A (en) * | 2019-06-26 | 2019-10-29 | 东华大学 | Cashmere fiber length testing at random must clump production method and detection method with both-end |
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| CN1075343A (en) * | 1992-11-28 | 1993-08-18 | 青岛纺织纤维检验所 | The method of measurement of cotton linters percentage by photographic apparatus |
| US20070291270A1 (en) * | 2003-01-07 | 2007-12-20 | Shofner Engineering Associates, Inc. | Image-based fiber length measurements from tapered beards |
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| CN1075343A (en) * | 1992-11-28 | 1993-08-18 | 青岛纺织纤维检验所 | The method of measurement of cotton linters percentage by photographic apparatus |
| US20070291270A1 (en) * | 2003-01-07 | 2007-12-20 | Shofner Engineering Associates, Inc. | Image-based fiber length measurements from tapered beards |
| CN101548171A (en) * | 2006-12-01 | 2009-09-30 | 乌斯特技术股份公司 | Integrated moisture, length, and strength tester |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548188A (en) * | 2016-01-19 | 2016-05-04 | 东华大学 | Random tuft gradual separation model based short fiber content measurement calculating method |
| CN105548188B (en) * | 2016-01-19 | 2018-04-06 | 东华大学 | Based on it is random must clump progressively disjunctive model fiber short down rate survey calculation method |
| CN106769652A (en) * | 2016-12-27 | 2017-05-31 | 东华大学 | The acquisition methods of line density coefficient curve and standard palpus complex curve |
| CN106769652B (en) * | 2016-12-27 | 2019-04-09 | 东华大学 | The acquisition methods of line density coefficient curve and standard palpus complex curve |
| CN110389059A (en) * | 2019-06-26 | 2019-10-29 | 东华大学 | Cashmere fiber length testing at random must clump production method and detection method with both-end |
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Application publication date: 20130213 |