CN203643345U - Fabric crease resistance testing device for simulating practical dressing - Google Patents
Fabric crease resistance testing device for simulating practical dressing Download PDFInfo
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- CN203643345U CN203643345U CN201420030680.7U CN201420030680U CN203643345U CN 203643345 U CN203643345 U CN 203643345U CN 201420030680 U CN201420030680 U CN 201420030680U CN 203643345 U CN203643345 U CN 203643345U
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- 239000004744 fabric Substances 0.000 title claims abstract description 52
- 238000012360 testing method Methods 0.000 title abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000004088 simulation Methods 0.000 claims abstract 2
- 230000037303 wrinkles Effects 0.000 claims description 34
- 229920000742 Cotton Polymers 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 210000000577 adipose tissue Anatomy 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000012946 outsourcing Methods 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 17
- 238000012545 processing Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000000877 morphologic effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003708 edge detection Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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- Treatment Of Fiber Materials (AREA)
Abstract
The utility model relates to a fabric crease resistance testing device for simulating practical dressing. The fabric crease resistance testing device for simulating practical dressing comprises a joint simulating device and a box-type fixing device. The fabric crease resistance testing device provided by the utility model saves a great amount of manpower, material resources and time which are consumed in actual dressing, has the advantages of simplicity, convenience, good simulation effect and the like, and has the beneficial effects of good experiment repeatability.
Description
Technical field
The utility model belongs to textile garment performance test field, relates in particular to a kind of wrinkle resistance in fabrics proving installation of simulating actual dressing.
Background technology
Fabric is rubbed that when extruding, plastic bending deformation occurred and the performance that forms wrinkle is called crapyness.The ability that fabric is resisted these type of wrinkle is called wrinkle resistance.Wrinkle resistance typically refers to the reply degree that produces under external force folding line, is called again wrinkle (folding line) recovery.Wrinkle resistance directly affects outward appearance and the flatness of fabric.Common method of testing is crease recovery horn cupping and wring method.The former replys angle by measuring after fabric folded exerting pressure; Wring method is by the compression that rotates a circle of upper and lower fabric both sides, evaluates wrinkle grade except pressing postpone.All there is certain problem in these two kinds of methods: what the former produced is the linearity folding line of single form and direction; The oblique folding line parallel to each other that the latter causes when producing and wringing out after similar clothes are washed.The wrinkle that the wrinkle that these two kinds of methods produce and clothes produce in actual wearing process have larger gap, cause its test result can not truly reflect the wrinkle situation of fabric in actual wearing process.
Summary of the invention
The purpose of this utility model is the problem existing in above wrinkle resistance in fabrics test, proposes a kind of wrinkle resistance in fabrics proving installation that can simulate actual dressing.As everyone knows, clothes are in actual wearing process, and what the most easily produce wrinkle is the joint part frequently that moves, as the most serious wrinkling region often such as knee, ancon.Therefore, the utility model relates generally to a kind of human synovial position of can simulating and makes fabric produce the device of wrinkle.
Above-mentioned technical purpose of the present utility model is achieved through the following technical solutions: the wrinkle resistance in fabrics proving installation of simulating actual dressing, comprise joint analogue means and box-like stationary installation, wherein joint analogue means comprises that again sponge stick, cotton mass, elastic needle weave cotton cloth.
Described joint analogue means is weaved cotton cloth and is formed by sponge stick, cotton mass and elastic needle.Described sponge stick is that centre is sizing iron wire, the club of outsourcing elastic sponge material, and several sponge sticks are fixed with thin wire, to simulate skeleton; Described cotton mass is filled in the sponge stick skin after fixing with thin wire, to simulate body fat; Described elastic needle is weaved cotton cloth and is wrapped in the skin of cotton mass, to simulate the resilient skin of human body.Described box-like stationary installation is made with on-deformable material, and with the rectangle hole of hollow, is used for the joint analogue means after bending be fixed and exert pressure.
The method of utilizing this device to carry out wrinkle resistance in fabrics test is: the fabric sample that is cut into given size is stitched into " sleeve ", be through on above device, and by its doubling bending, after on pressue device, fixed gange is fixed time, take off " sleeve " and remove suture line, and the fabric sample after wrinkle is positioned on scanner and scans and obtain fabric pincher image, and with computing machine, fabric pincher image is carried out to a series of images and process operation, comprise: pre-service, coloured image gray processing, medium filtering, gray scale strengthens, denoising, utilize OTSU(maximum between-cluster variance threshold value) method carries out binaryzation and wrinkle rim detection.Finally extract fabric pincher degree as the evaluation index that characterizes the crease-resistant ability of fabric.The fabric that wrinkle degree is larger, crease-resistant ability when clothes are actual to be worn made is poorer.
The beneficial effects of the utility model: can not characterize fabric for existing wrinkle resistance method of testing and make the wrinkle ability in actual wearing process after clothes, design a set of wrinkle resistance in fabrics proving installation of simulating actual dressing, and obtain reflecting the evaluation index of wrinkle resistance in fabrics by image processing, solve existing wrinkle resistance in fabrics testing tool and method and all can not be used for characterizing wrinkle situation when fabric is actual to be worn, also saved a large amount of human and material resources and the time that actual wearer trail need to expend simultaneously.There is the advantages such as simple and convenient, simulated effect is good, and possess the beneficial effects such as experiment favorable repeatability.
In to the processing procedure of fabric pincher image, the algorithm that has adopted a kind of multi-scale self-adaptive weighting morphological Edge to extract, solve to utilize and differentiated and carry out the poor problem (as Sobel algorithm, Prewitt algorithm) of algorithm noise immunity of edge extracting, made up that the calculated amount existing while utilizing Gaussian function to make level and smooth or convolution algorithm to original image is large, arithmetic speed is slow etc. not enough (as Log and Canny Boundary extracting algorithm).
Brief description of the drawings
Fig. 1 joint analogue means cross-sectional structure schematic diagram;
The schematic diagram that Fig. 2 is fixed and exerts pressure with the proving installation of sample.
Embodiment
By the following examples, and by reference to the accompanying drawings, the technical solution of the utility model is further described in detail.
Embodiment: simulate the wrinkle resistance in fabrics proving installation of actual dressing, comprise joint analogue means and the box-like stationary installation of Fig. 1, joint analogue means comprises that again sponge stick 1, cotton mass 2, elastic needle weave cotton cloth 3.Described sponge stick 1 for centre be sizing iron wire, the club of 1.5 centimetres of the diameters of outsourcing elasticity sea material, several sponge sticks are fixed with thin wire, to simulate skeleton; Described cotton mass 2 is filled in the sponge stick skin after fixing with thin wire, to simulate body fat; Described elastic needle 3 skins that are wrapped in cotton mass of weaving cotton cloth, to simulate the resilient skin of human body.Joint analogue means in the present embodiment is long 20 centimetres, 16 centimetres of diameters.
The described on-deformable material of box-like stationary installation 5 use is made, and with the rectangle hole of hollow, is used for the joint analogue means 4 after bending be fixed and exert pressure, as shown in Figure 2.The rectangular aperture of the box-like stationary installation in the present embodiment is 15 centimeter length, and 9 centimetres wide.
Wrinkle resistance in fabrics method of testing in the utility model comprises the following steps:
(1) by after smooth fabric flatiron to be measured, put on warp-wise fibre mark, and be cut into given size (in the present embodiment, sample is of a size of the rectangle of warp-wise 20cm, broadwise 18cm).
(2) by the doubling along its length of the fabric sample of cutting on request, and sew up with the margin to seam of 0.5 centimetre, form sleeve shape.
(3) sleeve the inside is outwards routed up, made margin to seam be positioned at sleeve inboard.
(4) sleeve is enclosed within on the analogue means of joint, and by bending the joint analogue means with sleeve doubling, when bending, makes margin to seam be positioned at outside.
(5) the joint analogue means after bending is positioned over to the aperture position of box-like stationary installation, with angle and the pressure fixed, the sample that is enclosed within analogue means outside, joint is exerted pressure.
(6) exert pressure after the set time, take off joint analogue means, and with scissors by the removal of suture of sleeve, then take off gently sample, and spread out gently.
(7) sample after spreading out is placed on scanner and obtains fabric pincher image, when scanning, will fix and the exerting pressure of unified doubling shrivelled thing.
(8) by fabric pincher image input computing machine, and carry out pre-service, the most serious part of wrinkle in the middle of intercepting, is cut to given size.
(9) the fabric pincher image after cutting is carried out to image processing, comprising: coloured image gray processing, medium filtering, gray scale enhancing, denoising, binaryzation and rim detection etc.The specific algorithm that wherein denoising and binaryzation and rim detection adopt is:
Denoising: in the fabric pincher image that wrinkle resistance pick-up unit in the utility model produces, speckle noise is more, therefore adopts and carries out denoising: y (i, j)=x (i, j) * n (i, j)+n as drag
0(i, j)
Wherein y, x, n, n
0be respectively the image of Noise, original clean image, multiplicative noise and additive noise.Conventionally the impact of additive noise is little more a lot of than multiplicative noise, can ignore, and therefore above formula can be changed into: log y (i, j)=logx (i, j)+logn (i, j), and then adopt the method for additive noise to process speckle noise.
Binaryzation adopts OTSU(maximum between-cluster variance threshold method) method carries out, and its central idea is to utilize gradation of image feature from figure, to separate prospect and the large class of background two.The inter-class variance of this two class is larger, this two classes difference larger (no matter be prospect mistake be divided into background or background mistake give prospect and all can make the difference of these two large classes diminish).The probability of misclassification is less means that the inter-class variance value of this two class is larger.In image G (x, y), suppose that T is required threshold value, the region that is less than this value is target, and the region that is greater than this value is background, and so, in target area, the probability of happening of pixel is ω
1, average gray is μ
1, background pixel point probability of happening is ω
2, average gray is μ
2, the total average gray of entire image is μ, inter-class variance
In the process of wrinkle rim detection, traditional Boundary extracting algorithm is if Sobel algorithm, Prewitt algorithm etc. are owing to having introduced various differentiating, and to noise-sensitive, noiseproof feature is poor, is not suitable for for detecting fabric pincher; Utilize Gaussian function original image to be made to Log and the Canny Boundary extracting algorithm of level and smooth or convolution algorithm, again because the large arithmetic speed of calculated amount is slow; In the utility model, adopt a kind of edge detection algorithm of multi-scale self-adaptive, concrete steps are:
1.. get the basic finite structure B of unit, expand and obtain the nB of Multi-scale model unit
2.. the nB of Multi-scale model unit obtaining with computing extracts respectively the marginal information ED of original image under each different scale
n(x, y).
3.. again gained multi-scale edge is extracted to image and carry out compose operation, obtain the edge image f ' (x, y) under each yardstick.
4.. synthetic edge image is carried out to binaryzation, obtain final edge image ED (x, y), complete multi-scale self-adaptive morphological Edge extraction algorithm.
(10) after above-mentioned image is processed, extract fabric pincher degree as the evaluation index that characterizes the crease-resistant ability of fabric, the expression formula of wrinkle degree is:
Wherein G
ibe i, the gray-scale value of individual pixel,
for the mean value of gray-scale value, n is total pixel number.Fabric pincher number of degrees value is larger, shows that the crease-resistant ability of fabric is poorer, makes when clothes are actual to be worn, and fabric face is got over out-of-flatness.
Be only preferred embodiment of the present utility model in sum, be not used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and revision, be technology category of the present utility model.
Claims (1)
1. the wrinkle resistance in fabrics proving installation of the actual dressing of simulation, comprises joint analogue means and box-like stationary installation, it is characterized in that:
Described joint analogue means is weaved cotton cloth and is formed by sponge stick, cotton mass and elastic needle; Described sponge stick is that centre is sizing iron wire, the club of outsourcing elastic sponge material, and several sponge sticks are fixed with thin wire, to simulate skeleton; Described cotton mass is filled in the sponge stick skin after fixing with thin wire, to simulate body fat; Described elastic needle is weaved cotton cloth and is wrapped in the skin of cotton mass, to simulate the resilient skin of human body;
Described box-like stationary installation is made with on-deformable material, and with the rectangle hole of hollow, is used for the joint analogue means after bending be fixed and exert pressure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420030680.7U CN203643345U (en) | 2014-01-17 | 2014-01-17 | Fabric crease resistance testing device for simulating practical dressing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420030680.7U CN203643345U (en) | 2014-01-17 | 2014-01-17 | Fabric crease resistance testing device for simulating practical dressing |
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| CN203643345U true CN203643345U (en) | 2014-06-11 |
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| CN201420030680.7U Expired - Lifetime CN203643345U (en) | 2014-01-17 | 2014-01-17 | Fabric crease resistance testing device for simulating practical dressing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728307A (en) * | 2014-01-17 | 2014-04-16 | 浙江理工大学 | Fabric wrinkle resistance test device and method for simulating actual dressing |
| CN107687967A (en) * | 2017-09-18 | 2018-02-13 | 浙江理工大学 | A kind of boardness method of testing |
| CN109959568A (en) * | 2019-03-04 | 2019-07-02 | 武汉纺织大学 | A method of the quantitative detection yarn easy-care properties by the way of elastic bending |
| CN109959566A (en) * | 2019-03-04 | 2019-07-02 | 武汉纺织大学 | A kind of elastic bending formula test method of fabric easy-care properties |
| CN109959565A (en) * | 2019-03-04 | 2019-07-02 | 武汉纺织大学 | It is a kind of can quantitative test fiber easy-care properties elastic bending formula detection method |
-
2014
- 2014-01-17 CN CN201420030680.7U patent/CN203643345U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728307A (en) * | 2014-01-17 | 2014-04-16 | 浙江理工大学 | Fabric wrinkle resistance test device and method for simulating actual dressing |
| CN103728307B (en) * | 2014-01-17 | 2015-09-16 | 浙江理工大学 | Simulate fabric wrinkle resistance test device and the method for actual dressing |
| CN107687967A (en) * | 2017-09-18 | 2018-02-13 | 浙江理工大学 | A kind of boardness method of testing |
| CN109959568A (en) * | 2019-03-04 | 2019-07-02 | 武汉纺织大学 | A method of the quantitative detection yarn easy-care properties by the way of elastic bending |
| CN109959566A (en) * | 2019-03-04 | 2019-07-02 | 武汉纺织大学 | A kind of elastic bending formula test method of fabric easy-care properties |
| CN109959565A (en) * | 2019-03-04 | 2019-07-02 | 武汉纺织大学 | It is a kind of can quantitative test fiber easy-care properties elastic bending formula detection method |
| CN109959565B (en) * | 2019-03-04 | 2021-06-01 | 武汉纺织大学 | Elastic bending type detection method capable of quantitatively testing non-ironing property of fiber |
| CN109959568B (en) * | 2019-03-04 | 2021-06-04 | 武汉纺织大学 | Method for quantitatively detecting non-ironing property of yarn by adopting elastic bending mode |
| CN109959566B (en) * | 2019-03-04 | 2021-06-04 | 武汉纺织大学 | Elastic bending type test method for non-ironing property of fabric |
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Granted publication date: 20140611 Effective date of abandoning: 20150916 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20150916 |
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