CN109813676A - A kind of application near infrared spectrometer spectrum is to cotton quantitative analysis method blended with spandex - Google Patents
A kind of application near infrared spectrometer spectrum is to cotton quantitative analysis method blended with spandex Download PDFInfo
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- CN109813676A CN109813676A CN201711166120.9A CN201711166120A CN109813676A CN 109813676 A CN109813676 A CN 109813676A CN 201711166120 A CN201711166120 A CN 201711166120A CN 109813676 A CN109813676 A CN 109813676A
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Abstract
The present invention provides a kind of quantitative analysis methods blended with spandex of application near-infrared spectrum analysis cotton, i.e., respectively obtain the ratio of cotton and spandex using manual analytical methods, establish a database；Then the infrared spectroscopy of these samples is acquired, comparative example data and spectrum are edited, and the method for determining modeling using existing software obtains the corresponding relationship of two kinds of data, and the component ratio of sample can be obtained in the infrared spectroscopy of the sample of input acquisition when test.Test method of the invention is quick, and accuracy is high, reduces the time of existing field test method and the risk of experiment.
Description
Technical field
The present invention relates to a kind of cotton quantitative analysis method technical fields blended with spandex.
Background technique
In terms of the application study of near-infrared spectrum technique, China is almost related to all possible field, at present the skill
Art is widely used in food quality detection, Analyzing The Quality of Agricultural Products, petrochemical industry, drug detection and synthetic fiber industry etc.
Domain variability brings significant economic benefit and social benefit.Most of work are only limited to preliminary tentative grind in field of textiles
Study carefully, from practical large-scale application require still have with a certain distance from, need modeling sample quantity, type, influence factor, robustness and
Standardized operation (such as model foundation and spectra collection) etc. does the development of system.But it is in the primary stage,
There is no widely applying in practice, it is only in the stage of feasibility study, the accuracy of result is also to obtain with conventional method
Result out differs greatly.For in the quantitative analysis process of cotton and ammonia, or using it is mechanical split with chemolysis method, this
A little Method And Principles are simple, as a result relatively more accurate, but test period is long, and some even needs 1-2 days time that can just obtain data,
And complex steps, it is not suitable for the analysis of batch samples, is also not suitable for on-line checking.Therefore, formulate it is a kind of practical and
The blank for testing accurate method to fill up this technical field is necessary be also it is necessary, matter not only is played to such product
The effect checked on is measured, the interests of consumer and manufacturer are even more effectively guaranteed.
Summary of the invention
The object of the invention is that provide it is a kind of using near infrared spectrometer spectrum to cotton quantitative analysis side blended with spandex
Method, which not only can guarantee the accuracy of component ratio, the repeatability of test result, and reduce the time of test
With the risk of experiment, also have the advantages that environmentally friendly, safe, quick.
To achieve the goals above, the technical solution adopted by the present invention is as follows:
A kind of cotton quantitative analysis method blended with spandex, includes the following steps:
1) prepare an appropriate number of sample, analysis method obtains the ratio data of cotton and spandex by hand, and input computer is built
Vertical basic database；
2) these samples are equably laid flat again on the table respectively, spectrum is carried out to sample with designed sampling attachment
Acquisition checks it after sample spectrum diagram acquisition is complete, if discovery has exceptional spectrum just to reject, structure modeling sample collection；
3) it models: analyzing operating software using RIMP, into model management, by " the new established model " in system, " inspire
Formula modeling ", " importing sample sets " imported into the database of step 1) and the map sample sets of step 2) in model, are built
Mould is deleted " multiplicative scatter correction ", wavelength selection 1100-1780nm in modeling process, rejecting abnormalities sample when computation model
Product data, and then a series of selections of mould parameter are carried out to identified modeling method, finally optimize evaluation model selection
Main gene, carry out segmentation modeling, be divided into three sections: the percentage composition of whole i.e. ammonia is between 0-15%, between 0%-6%, 5-
Between 15%)；
4) product test interface is established: in " measurement analysis " entrance of software, by the infrared spectrogram of collected sample
Input model obtains each component ratio data of sample.
Further, cotton quantitative analysis method blended with spandex further includes precision test step, specifically: it is another
More than 200 a cottons of outer preparation and spandex face fabric, the good number of mark, obtains accurate ratio and infrared spectroscopy side with existing standard respectively
The ratio that method is worked it out is made comparisons, to determine the availability and accuracy of method of infrared spectrophotometry.
Further, the infrared spectroscopy acquisition instrument is that near-infrared analyzer 1520TM light coral scans fiber spectrometer,
These samples are equably laid flat on the table respectively when acquiring spectroscopic data, make the consistency of thickness of sample as far as possible, while to sample
Product apply certain pressure, while guaranteeing that light all penetrates fabric, do not reveal.
Beneficial effects of the present invention:
Present invention application near infrared spectroscopy for the quantitative analysis method compared with existing relevant analysis method, ring
It protects, simply, quickly, efficiently, conveniently, not only overcomes the various defects of fibre composition test method in existing textile, moreover it is possible to
Quantitative analysis of the model for some other two components blended yarn weaved fabric is established using same method, accuracy is high, repeatable to make
With, reduce the time of existing field test method and the risk of experiment, realize advocate at present it is environmentally protective.The analysis
Method not only can guarantee the accuracy of component ratio, the repeatability of test result, and reduce time and the experiment of test
Risk also has the advantages that environmentally friendly, safe, quick.
Specific embodiment
One, prepare 500 muti-piece of sample of 20cm*20cm, analysis method obtains the ratio data of cotton and spandex by hand, defeated
Enter computer and establishes basic database.
For traditional manual method according to the test method of FZ/T01095 textile spandex product fiber content, specifically
It operates as follows:
(1) sample pretreatment: petroleum ether extraction 1H is used in Soxhlet, 1H, then 65 ± 5 DEG C of distillation are then impregnated in cold water
1H is impregnated in water.
(2) by ready samples weighing, spandex is separated by hand from cotton fiber, places into 105 ± 3 DEG C of baking
Interior drying in case, cooling weighing.The weight M1 of cotton, the weight M2 of spandex are obtained, calculates cotton fiber and ammonia according to the following formula
The percentage composition of synthetic fibre.
The net (dry) weight mass fraction of P1- cotton, the net (dry) weight quality of %M1- cotton, unit be gram,
The net (dry) weight quality of M2- spandex, unit are gram
Calculation formula in conjunction with official regain is as follows:
PM2=100-PM1
PM1- combines the official regain % of the percentage %a1- cotton of public cotton of getting damp again surely
The official regain % of a2- spandex
Two, using Focused Photonics (Hangzhou) Inc. Sup NIR-1520 Portable near infrared analyzer 1520TM
Raster scanning fiber spectrometer, then these samples are equably laid flat on the table respectively, with designed sampling attachment to sample
Product carry out spectra collection, pay attention to the consistent of the thickness for making great efforts to make sample as far as possible, while applying certain pressure to sample, also need to guarantee
Light all penetrates fabric, does not reveal.
Three, after sample spectrum diagram acquisition is complete, it is checked, if discovery has exceptional spectrum just to reject, can be constructed
Mould sample sets, the method for then selecting and determining modeling, and then a series of choosings of mould parameter are carried out to identified modeling method
It selects, finally optimizes the main gene of evaluation model selection, carry out segmentation modeling, be divided into three sections: the percentage composition of whole i.e. ammonia
Between 0-15%, between 0%-6%, between 5-15%), to increase the accuracy of result.Specific modeling procedure is as follows:
(1) acquire spectrum: manual method obtains this batch of fabric i.e. 4000 muti-piece samples of data near infrared light before
It is scanned on spectrometer, obtains the spectrum of these fabrics；
(2) sample sets are edited: these spectrum are added in sample sets, the data and spectrogram that input manual method obtains
It corresponds；
(3) it models: operating software is analyzed according to the software of instrument institute band, that is, RIMP, changing interface into model management,
By the key " new established model " in system, " heuristic modeling ", the data in (2) are imported into model by " importing sample sets "
In, it is modeled, in modeling process, is deleted " multiplicative scatter correction ", wavelength selection 1100-1780nm, when computation model
Rejecting abnormalities sample data；
(4) it establishes product test interface: changing interface to " measurement is analyzed ", importing model from database.
Its modeling procedure is as follows:
Log in and enter RIMP analysis operating software model management interface, into heuristic Modeling interface after input model category
Property, modeling sample collection is imported, mathematical model parameter (ordinary circumstance is default parameters) is built in configuration, selects modeling method, i.e., minimum less than normal
Two multiply regression analysis, calculating and stored models.
(5) more than 2000 a cottons and spandex face fabric are in addition collected, be respectively charged into sack and marks good number is subsequent to facilitate
Validation test, and accurate ratio also is obtained with existing standard and ratio that method of infrared spectrophotometry is worked it out is made comparisons, come true
Determine the availability and accuracy of method of infrared spectrophotometry.
By the verifying of more than 2000 a samples, with conventional method comparing difference substantially within 1%, error very little, and
Blind sample selective examination for these samples, percent of pass 99.5%, so the model of infrared spectroscopy cotton and spandex can be applied completely
In daily detection.
Four, the infared spectrum for scanning sample to be tested inputs the software and then software is automatically found corresponding ratio data, i.e.,
The data of sample to be tested.
Demonstration Method:
Demonstration scheme cotton and the blended quantitative correctness of spandex: the number obtained using mechanical method for splitting or chemical method
Comparison is done according to the data obtained with the method to determine its accuracy.
Claims (4)
1. a kind of cotton quantitative analysis method blended with spandex, includes the following steps:
1) prepare an appropriate number of sample, analysis method obtains the ratio data of cotton and spandex by hand, and input computer establishes base
Plinth database；
2) these samples are equably laid flat again on the table respectively, spectrum is carried out to sample with designed sampling attachment and is adopted
Collection checks it after sample spectrum diagram acquisition is complete, if discovery has exceptional spectrum just to reject, structure modeling sample collection；
3) it models: analyzing operating software using RIMP, it is " heuristic to build by " the new established model " in system into model management
Mould ", " importing sample sets " imported into the database of step 1) and the map sample sets of step 2) in model, are modeled,
It in modeling process, deletes " multiplicative scatter correction ", wavelength selection 1100-1780nm, rejecting abnormalities sample number when computation model
According to, and then a series of selections of mould parameter are carried out to identified modeling method, finally optimize the master of evaluation model selection
The factor carries out segmentation modeling, is divided into three sections: the percentage composition of whole i.e. ammonia is between 0-15%, between 0%-6%, 5-15%
Between)；
4) it establishes product test interface: in " measurement analysis " entrance of software, the infrared spectrogram of collected sample being inputted
Model obtains each component ratio data of sample.
2. cotton quantitative analysis method blended with spandex as described in claim 1, it is characterised in that: further include precision test step
It is rapid: in addition prepare more than 2000 a cottons and spandex face fabric, respectively the good number of mark, with existing standard obtain accurate ratio with it is infrared
The ratio that spectrographic technique is worked it out is made comparisons, to determine the availability and accuracy of method of infrared spectrophotometry.
3. cotton quantitative analysis method blended with spandex as described in claim 1, it is characterised in that: the infrared spectroscopy is adopted
Integrate instrument and scans fiber spectrometer as near-infrared analyzer 1520TM light coral.
4. cotton quantitative analysis method blended with spandex as described in claim 1, it is characterised in that: will when acquisition spectroscopic data
These samples equably lay flat the consistency of thickness for making sample on the table respectively, while applying certain pressure to sample, simultaneously
Guarantee that light all penetrates fabric.
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| CN201711166120.9A CN109813676A (en) | 2017-11-21 | 2017-11-21 | A kind of application near infrared spectrometer spectrum is to cotton quantitative analysis method blended with spandex |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564966A (en) * | 2012-02-03 | 2012-07-11 | 江西出入境检验检疫局检验检疫综合技术中心 | Near infrared rapid non-destructive detection method for textile components |
| CN104764717A (en) * | 2015-03-25 | 2015-07-08 | 浙江理工大学 | Method for rapidly determining content of silk in textile by using near infrared spectroscopic analysis technology |
| CN105738317A (en) * | 2016-02-16 | 2016-07-06 | 广州纤维产品检测研究院 | Textile near-infrared model transfer method |
-
2017
- 2017-11-21 CN CN201711166120.9A patent/CN109813676A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564966A (en) * | 2012-02-03 | 2012-07-11 | 江西出入境检验检疫局检验检疫综合技术中心 | Near infrared rapid non-destructive detection method for textile components |
| CN104764717A (en) * | 2015-03-25 | 2015-07-08 | 浙江理工大学 | Method for rapidly determining content of silk in textile by using near infrared spectroscopic analysis technology |
| CN105738317A (en) * | 2016-02-16 | 2016-07-06 | 广州纤维产品检测研究院 | Textile near-infrared model transfer method |
Non-Patent Citations (3)
| Title |
|---|
| 朱洪亮 等: "棉/氨混纺织物氨纶含量快速分析方法研究", 《中国纤检》 * |
| 桂家祥 等: "基于近红外光谱法的棉/涤混纺织物中棉含量快速检测", 《纺织学报》 * |
| 黄兴阳 等: "近红外光谱法用于纺织品定量分析的研究", 《纤·检测园地》 * |
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