CN102967538A - Automatic determination method of resistance to fabric surface wetting - Google Patents
Automatic determination method of resistance to fabric surface wetting Download PDFInfo
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- CN102967538A CN102967538A CN201210533150XA CN201210533150A CN102967538A CN 102967538 A CN102967538 A CN 102967538A CN 201210533150X A CN201210533150X A CN 201210533150XA CN 201210533150 A CN201210533150 A CN 201210533150A CN 102967538 A CN102967538 A CN 102967538A
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Abstract
The invention provides an automatic determination method of resistance to fabric surface wetting, and belongs to the field of detection of novel textiles. The method provided by the invention can be carried out to automatically determine the wetting resistance of various fabric surfaces which are subjected to water-resistant treatment or water-repellent treatment in advance. In accordance with the national standard GB/T4745-1997 Textile Fabrics-Determination of Resistance to Surface Wetting-Spray Test, assessors determine the grade of the resistance to fabric surface wetting by comparing a tested sample with a standard sample through eyes under a certain lighting condition, and the subjective factors of the assessors cause deviation in assessment. According to the automatic determination method of resistance to fabric surface wetting, the automatic determination of resistance to fabric surface wetting is implemented based on the image analysis, the spray test is carried out to the fabric surface according to the GB/T4745-1997; and the automatic determination method comprises the following steps in sequence: acquiring images of the fabric surface by a camera on real time; processing the images of the fabric surface in an image analysis way; separating to obtain a wetting section of the fabric; automatically measuring to obtain the area of the wetting section on the fabric surface; calculating the area ratio of the wetting section to the detecting section; and assessing to obtain the grade of the resistance to fabric surface wetting based on the standard sample.
Description
Technical field
The present invention relates to a kind of fabric face moisture resistance automatic measuring method, comprise the experiment that gets wet of fabric face, the methods such as fabric face image acquisition and the calculating of fabric wetting zones area, it belongs to the fabric detection field, and the preparation, the fabric that are specifically related to fabric sample are showed the technology such as experiment, textile image collection and textile image processing.
Background technology
The purposes of waterproof and moisture permeability fabric is very large, and textile enterprise competitively adds the ranks that develop both at home and abroad, and waterproof moisture permeating fabric certainly will be to the universalness future development.For the anti humility performance quality of the waterproof fabric that detects development, need to evaluate by experiment fabric moisture resistance grade.When fabric waterproof anti humility performance ranking, classic method is that evaluation person comes contrast experiment's sample and standard model photo to draw fabric moisture resistance grade by human eye under certain illumination condition according to standard GB/T/T4745-1997 " textile fabric surface moisture resistance is measured dip experiment ".It is too large that this method is affected by evaluation person's subjective factor, and produce flase drop because of tired easily, so evaluated error is large, and consistance is bad and efficient is not high.
The present invention has provided the method for the various anti-water of a kind of automatic mensuration or WATER REPELLENT FANISH FABRIC surface moisture resistance.Realize the automatic mensuration of fabric moisture resistance based on graphical analysis, according to GB/T4745-1997 " textile fabric surface moisture resistance measure dip experiment " to the fabric face experiment that gets wet, utilize camera Real-time Collection fabric face image, adopt image analysis method that textile image is processed, be partitioned into the fabric wetting zones, automatically measure fabric face wetting zones area, calculate the Area Ratio of wetting zones area and surveyed area, according to assessing fabric face moisture resistance grade, concrete experiment flow as shown in Figure 1 according to standard sample.
Summary of the invention
The purpose of this invention is to provide a kind of fabric face moisture resistance automatic measuring method, be used for realizing fabric face moisture resistance grade automatic evaluation.The technical solution used in the present invention is as follows:
(1) with reference to standard GB/T/T4745-1997 " textile fabric surface moisture resistance is measured dip experiment ", prepare fabric sample, fabric sample is prewetted more than 24 hours under the status of criterion, specimen size is more than 180mm * 180mm, per sample (p.s.) is got at least three of different parts, the specimen holder clamping that sample is comprised of two wood rings that can cooperatively interact or becket, sample are placed on special-purpose getting wet property test with below the nozzle;
(2) after the experiment of fabric trickle, clamper is removed from the water drenching device below with fabric sample, make fabric face downward, facing to twice of clamper tapped (the frame that stretches tight directly make progress relative 2 each once), after beaing, sample still on clamper, is woven into the image capturing system below, gathers the fabric face image;
(3) by data connecting line and image pick-up card, the wetting image of fabric is transported among the main frame;
(4) special-purpose fabric face moisture resistance ranking software can read in the textile image that image pick-up card collects, and shows in real time, provides simultaneously view data, to finish the automatic evaluation of fabric face moisture resistance grade;
(5) utilize image segmentation to determine the fabric wetting zones, calculate the wetting zones area, obtain the wetting ratio of fabric face, automatically obtain fabric face moisture resistance grade.
Description of drawings
Fig. 1 fabric moisture resistance grade automatic evaluation flow process
Getting wet property of Fig. 2 fabric face instrument (instrument gets wet)
Fig. 3 textile image acquisition system
Fig. 4 moisture resistance grade sample shines
Embodiment
With reference to standard GB/T/T4745-1997 " textile fabric surface moisture resistance is measured dip experiment ", prepare fabric sample, fabric sample is prewetted more than 24 hours under the status of criterion, specimen size is more than 180mm * 180mm, per sample (p.s.) is got at least three of different parts, the specimen holder clamping that sample is comprised of two wood rings that can cooperatively interact or becket.
With reference to standard GB/T/T4745-1997, the fabric liquid distribution is comprised of 150mm funnel and a metallic nozzle of a vertical clamping, proofed sleeve with a 10mm bore connects nozzle and funnel, and the funnel top is 190mm to the distance of nozzle bottom, specifically as shown in Figure 2.
Sample is installed on the snap ring with level angle at 45 ° places, sample is centered close to the nozzle below, carries out the trickle experiment.According to stipulating among the GB/T4745-1997, used water distilled water or deionized water, temperature is 20 ℃ ± 2 ℃ or 27 ℃ ± 2 ℃.
During water pouring test, fabric face up, and the fabric sample warp thread direction is parallel with water (flow) direction, with the rapid and stably hopper of the water of 250ml, so that trickle continues to carry out.Trickle just listens, rapidly with clamper together with removing from water drenching device below with fabric sample, make fabric face downward, facing to twice of clamper tapped (the frame that stretches tight directly make progress relative 2 each once), after beaing, sample still on clamper, is woven into the image capturing system below, gather the fabric face image, the textile image acquisition system as shown in Figure 3.
With reference to standard GB/T/T4745-1997 " textile fabric surface moisture resistance is measured dip experiment ", determine each grade wetting areas number percent R
1, R
2, R
3, R
4, R
5Stipulate spray rating among the GB/T4745-1997:
1 grade---it is all wetting to be drenched the surface.
2 grades---being drenched the surface has a dewetting.
3 grades---being drenched the surface only has unconnected small size wetting.
4 grades---being drenched the surface does not have wettingly, but speckles with droplet on the surface.
5 grades---being drenched the surface does not have wettingly, does not speckle with droplet on the surface yet.
The sample of each grade shines as shown in Figure 4.
For reinforcement fabric wetting zones and contrast that all the other are regional, when image acquisition, adopt White LED that fabric face is thrown light on.When detecting wetting zones, utilize the Canny operator to detect the wetting zones edge, calculate the wetting zones area, obtain the wetting R of ratio of fabric face.
Judge the wetting rate range (R that R is positioned at
N+1, R
n), all the other n=1,2,3,4.
Judge fabric face moisture resistance grade, concrete grammar is as follows:
When
The time, fabric face moisture resistance grade is the n level, otherwise works as
The time, fabric face moisture resistance grade is the n+1 level.
Claims (4)
1. fabric face moisture resistance automatic measuring method, it is characterized in that: according to GB/T4745-1997 to the fabric face experiment that gets wet, utilize camera Real-time Collection fabric face image, adopt image analysis method that textile image is processed, be partitioned into the fabric wetting zones, automatically measure fabric face wetting zones area, calculate the Area Ratio of wetting zones area and surveyed area, assess fabric face moisture resistance grade according to the standard sample photograph.
2. fabric according to claim 1, it is characterized in that fabric sample prewets more than 24 hours under the status of criterion, specimen size is more than 180mm * 180mm, per sample (p.s.) is got at least three of different parts, the specimen holder clamping that sample is comprised of two wood rings that can cooperatively interact or becket, sample are placed on special-purpose getting wet property test with below the nozzle.
3. according to claim 1 camera is characterized in that: require resolution ratio of camera head can satisfy image acquisition request, require shooting resolution to be not less than 640 pixels * 480 pixels.
4. according to claim 1 Real-time Collection textile image, it is characterized in that: by data communication interface digital camera is linked to each other with main frame, the fabric dynamic image is input to main frame, the communication speed of requirement data communication interface, data line, capture card satisfies the high speed of image and carries requirement, can adopt the high speed communication interfaces such as CamLink, IEEE1394, USB3.0.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210533150XA CN102967538A (en) | 2012-12-12 | 2012-12-12 | Automatic determination method of resistance to fabric surface wetting |
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| CN201210533150XA CN102967538A (en) | 2012-12-12 | 2012-12-12 | Automatic determination method of resistance to fabric surface wetting |
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| CN102967538A true CN102967538A (en) | 2013-03-13 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862407A (en) * | 2014-04-02 | 2014-06-18 | 公安部天津消防研究所 | Fixing device for detecting fabric freezing resistance and application method thereof |
| CN106769692A (en) * | 2017-02-14 | 2017-05-31 | 红塔烟草(集团)有限责任公司 | The method that quantitative determination cigarette connects mouth glue penetration performance |
| CN107219153A (en) * | 2017-06-02 | 2017-09-29 | 中纺协（北京）检验技术服务有限公司 | Textile drips the method for testing and test equipment of diffusion time |
| CN108645814A (en) * | 2018-06-28 | 2018-10-12 | 浙江理工大学 | A kind of high spectrum image acquisition method of the wetting zones of multicolour cloth for identification |
| CN108693093A (en) * | 2018-04-13 | 2018-10-23 | 浙江肯特科技股份有限公司 | A kind of the water resistance detection device and method of fabric |
| CN109827887A (en) * | 2019-03-16 | 2019-05-31 | 江苏创标检测技术服务有限公司 | A kind of improved textile water proof performance detection apparatus and detection method |
| CN112697649A (en) * | 2019-10-23 | 2021-04-23 | 洛阳超特电源科技有限公司 | Method for testing wettability of battery electrolyte |
| EP4083602A4 (en) * | 2019-12-25 | 2024-01-03 | Daikin Ind Ltd | Blemish evaluation method, droplet evaluation method, repellent evaluation method, and repellent evaluation device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101149325A (en) * | 2007-10-09 | 2008-03-26 | 浙江理工大学 | Textile water-proof performance automatic detection method and detection system |
| CN201364301Y (en) * | 2009-03-13 | 2009-12-16 | 广东省东莞市质量计量监督检测所 | Dry indicator method water-resistance measuring device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101149325A (en) * | 2007-10-09 | 2008-03-26 | 浙江理工大学 | Textile water-proof performance automatic detection method and detection system |
| CN201364301Y (en) * | 2009-03-13 | 2009-12-16 | 广东省东莞市质量计量监督检测所 | Dry indicator method water-resistance measuring device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862407A (en) * | 2014-04-02 | 2014-06-18 | 公安部天津消防研究所 | Fixing device for detecting fabric freezing resistance and application method thereof |
| CN103862407B (en) * | 2014-04-02 | 2015-12-09 | 公安部天津消防研究所 | The fixture detected for fabric freezing and using method |
| CN106769692A (en) * | 2017-02-14 | 2017-05-31 | 红塔烟草(集团)有限责任公司 | The method that quantitative determination cigarette connects mouth glue penetration performance |
| CN107219153A (en) * | 2017-06-02 | 2017-09-29 | 中纺协（北京）检验技术服务有限公司 | Textile drips the method for testing and test equipment of diffusion time |
| CN108693093A (en) * | 2018-04-13 | 2018-10-23 | 浙江肯特科技股份有限公司 | A kind of the water resistance detection device and method of fabric |
| CN108645814A (en) * | 2018-06-28 | 2018-10-12 | 浙江理工大学 | A kind of high spectrum image acquisition method of the wetting zones of multicolour cloth for identification |
| CN108645814B (en) * | 2018-06-28 | 2020-12-15 | 浙江理工大学 | Hyperspectral image acquisition method for identifying wetting area of multicolor fabric |
| CN109827887A (en) * | 2019-03-16 | 2019-05-31 | 江苏创标检测技术服务有限公司 | A kind of improved textile water proof performance detection apparatus and detection method |
| CN109827887B (en) * | 2019-03-16 | 2024-03-19 | 江苏创标检测技术服务有限公司 | Improved textile waterproof performance detection equipment and detection method |
| CN112697649A (en) * | 2019-10-23 | 2021-04-23 | 洛阳超特电源科技有限公司 | Method for testing wettability of battery electrolyte |
| EP4083602A4 (en) * | 2019-12-25 | 2024-01-03 | Daikin Ind Ltd | Blemish evaluation method, droplet evaluation method, repellent evaluation method, and repellent evaluation device |
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Application publication date: 20130313 |