CN109142690A - A kind of multi-direction stiffness test method of fabric - Google Patents
A kind of multi-direction stiffness test method of fabric Download PDFInfo
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- CN109142690A CN109142690A CN201810902544.5A CN201810902544A CN109142690A CN 109142690 A CN109142690 A CN 109142690A CN 201810902544 A CN201810902544 A CN 201810902544A CN 109142690 A CN109142690 A CN 109142690A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/36—Textiles
Abstract
The invention discloses a kind of multi-direction stiffness test methods of fabric.When existing stiffness measurement method needs to obtain fabric different directions stiffness, needs to cut muti-piece sample and carry out repeating test.The test device that the present invention uses includes fixed plate, measurement plate and measuring block.The bottom of fixed plate and the one side edge of measurement plate are fixed.The medial surface of fixed plate is vertically arranged.The top surface of measurement plate is horizontally disposed.Bottom water horizontal line, fixing line, fixed point, normal line and reticule group are provided in fixed plate.The either flush of bottom water horizontal line and measurement plate.Fixing line is located above bottom water horizontal line.Fixed point is located at the midpoint of fixing line.Normal line passes through fixed point, and perpendicular to bottom water horizontal line.Reticule group include the 1st reticule, the 2nd reticule ..., the n-th reticule.Measuring basis line is provided in measurement plate.The present invention can realize the measurement to fabric all directions stiffness using same sample.
Description
Technical field
The invention belongs to textile garment technical field of performance test, and in particular to a kind of multi-direction stiffness test side of fabric
Method.
Background technique
The stiffness of fabric is to carry out fabric buying kimonos installing timing, it is necessary to the important indicator of consideration.Fabric is endured with all one's will
Degree directly affects the appearance of clothes, while also influencing snugness of fit.The fabric purchasing agent of many clothes companies is carrying out
It is all the stiffness size for carrying out rough estimate fabric with experience and subjective assessment when fabric is purchased.Therefore it is accurate and easy to establish
Boardness test and evaluation method, clothes processing and fabric selection in terms of have very important realistic meaning.
Inclined plane method is the method for most common evaluation boardness.The evaluation index of such method is bending length
And bending stiffness.The numerical value of these indexs is bigger, shows that fabric is more stiffening.It the advantage is that convenient and efficient, but inclined plane method
Test can only obtain the stiffness value in single direction every time.If obtaining the index of multiple directions, need repeatedly to be drawn materials
It with measurement, takes a long time, and also more to the consumption of fabric, for high-grade fabric, testing cost be can not be ignored.
Summary of the invention
The purpose of the present invention is to provide a kind of multi-direction stiffness test methods of fabric.
The test device that the present invention uses includes fixed plate, measurement plate and measuring block.The bottom of the fixed plate and measurement
The one side edge of plate is fixed.The medial surface of the fixed plate is vertically arranged.The top surface of the measurement plate is horizontally disposed.
Bottom water horizontal line, fixing line, fixed point, normal line and reticule group are provided in the fixed plate.Bottom water
The either flush of horizontal line and measurement plate.Fixing line is located above bottom water horizontal line, and is H at a distance from bottom water horizontal line.It is fixed
Point is located at the midpoint of fixing line.Normal line passes through fixed point, and perpendicular to bottom water horizontal line.
The reticule group include the 1st reticule, the 2nd reticule ..., the n-th reticule, 1≤n≤15.By solid
Two the i-th reticules of fixed point are symmetrical about normal line, and and fixing line is at i22.5 ° of angle, i=1,2 ..., n.
Measuring basis line is provided in the measurement plate.Measuring basis line perpendicular to fixed plate medial surface, and with mark
Directrix intersects on bottom water horizontal line.The first graduation mark is provided on measuring basis line.It is set on the work side of the measuring block
It is equipped with the second graduation mark.
Specific step is as follows includes: for the multi-direction stiffness test method of the fabric
Step 1: by tested fabric ironing it is smooth after, be cut into diameter be D circle, obtain tested sample, 10cm≤D
≤ 20cm, D < H.The fibre mark line by the center of circle is marked in tested sample.
Step 2: tested sample is placed on the medial surface of fixed plate, so that on the center of circle and fixed plate of tested sample
Fixation point alignment, the fixation point alignment in fibre mark line and fixed plate.The first pin is plugged into tested sample later
The center point.
Step 3: being assigned to i for 1.
Step 4: two second pins are plugged respectively at the both sides of the edge of tested sample.So that the first pin with
Two second pins are inserted in fixing line.
Step 5: measuring block is placed into measurement plate, so that the bottom end end face of measuring block is bonded with measurement plate top surface, work
Make side to be aligned with the measuring basis line in measurement plate.Later, along the measuring basis line traverse measurement block in measurement plate, so that
Measuring block is contacted with tested sample.
Step 6: reading measuring block and tested sample the contact position corresponding scale X and at the second quarter on the first graduation mark
Spend corresponding scale Y on line.
Step 7: calculating the pliability coefficient of fabricStep 8 is executed later.
Step 8: two second pins are pulled up, clockwise or counterclockwise tested sample if i≤n, so that by
Fibre mark line in test specimens is aligned with wherein i-th reticule, and is repeated after i is increased 1 Step 4: five, six
With seven.
If i > n, enters step nine.
Step 9: R1、R2、R3、R4Numerical value is smaller, then it is more stiffening to be tested fabric.
Further, it is also performed the following operation in step 9: calculating R1、R2、R3、R4Variance D (R).D (R) is smaller, then
The stiffness of tested fabric all directions is more uniform.Calculate R1、R2、R3、R4Average value M (R).M (R) is bigger, then is tested fabric
It is more stiffening.
Further, it is additionally provided in the fixed plate and places profile circle.Place the center of circle and the fixed point weight of profile circle
It closes, diameter D, H=0.5D+a, a=0.5cm.
Further, it is aligned at 0 scale of the first graduation mark with fixed plate medial surface on the measuring basis line.
Further, 0 scale of second graduation mark is aligned with the bottom end end face of measuring block.
The invention has the advantages that:
The present invention can realize the measurement to fabric all directions stiffness using same sample, avoid the prior art
In for detection different directions stiffness, cut the complex operations of muti-piece sample, and then saved fabric cost and time of measuring.
Detailed description of the invention
Fig. 1 is test process schematic diagram of the invention；
Fig. 2 is the medial surface schematic diagram of fixed plate in the test device of the invention used.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described.
As shown in Figure 1, a kind of multi-direction stiffness test method of fabric, the test device of use includes fixed plate 1, measurement
Plate 2 and measuring block 3.The bottom of fixed plate 1 and the one side edge of measurement plate 2 are fixed.The medial surface of fixed plate 1 is vertically arranged.It surveys
The top surface of template 2 is horizontally disposed.
As illustrated in fig. 1 and 2, it is provided with bottom water horizontal line 1-1 in fixed plate 1, fixing line 1-2, fixed point 1-3, places wheel
Exterior feature circle 1-4, normal line 1-5, the first reticule 1-6, the second reticule 1-7 and third reticule 1-8.Bottom water horizontal line 1-1 with
The either flush of measurement plate 2.Fixing line 1-2 is located above bottom water horizontal line 1-1, and is H at a distance from bottom water horizontal line 1-1.
Fixed point 1-3 is located at the midpoint of fixing line 1-2.The center of circle for placing profile circle 1-4 is overlapped with fixed point 1-3, diameter D, H=
0.5D+a, 10cm≤D≤20cm, a=0.5cm.Normal line 1-5 passes through fixed point 1-3, and perpendicular to bottom water horizontal line 1-1.?
It is symmetrical about normal line 1-5 by two the first reticule 1-6 of fixed point 1-3, and with fixing line 1-2 at 22.5 ° of angles.?
It is symmetrical about normal line 1-5 by two the second reticule 1-7 of fixed point 1-3, and with the angle at 45 ° fixing line 1-2.Pass through
Two third reticule 1-8 for crossing fixed point 1-3 are symmetrical about normal line 1-5, and with fixing line 1-2 at 67.5 ° of angles.
Measuring basis line is provided in measurement plate.Measuring basis line perpendicular to fixed plate medial surface, and with normal line 1-5
It intersects on bottom water horizontal line 1-1.The first graduation mark is provided on measuring basis line.The 0 of first graduation mark on measuring basis line
It is aligned at scale with fixed plate medial surface.The second graduation mark is provided on the work side of measuring block 3.0 quarter of the second graduation mark
Degree is aligned with the bottom end end face of measuring block 3.
Specific step is as follows includes: for the multi-direction stiffness test method of the fabric
Step 1: by tested fabric ironing it is smooth after, be cut into diameter be D circle, obtain tested sample 4.And in quilt
The fibre mark line (straight line) by the center of circle is marked in test specimens 4.Circular tested sample 4 can guarantee the feelings in different angle
Under condition, the length of tested sample in all directions is remained unchanged, to avoid influence of the tested sample shape to measurement result.
Step 2: tested sample 4 is placed on the medial surface of fixed plate, so that the center of circle of tested sample 4 and fixed plate
On fixed point 1-3 alignment, fibre mark line is aligned with the fixed point 1-3 in fixed plate.First pin is plugged tested
The center point of sample 4.
Step 3: being assigned to i for 1.
Step 4: two second pins are plugged respectively at the both sides of the edge of tested sample.First pin and two
Second pin is inserted on fixing line 1-2, so that the part below tested sample upper fixed line 1-2 and face paste on the inside of fixed plate
It closes, the part of fixing line 1-2 or more is naturally drooped to the side far from fixed plate.
Step 5: measuring block 3 is placed into measurement plate by the sagging form stable of tested sample after one minute, so that surveying
The bottom end end face of gauge block 3 is bonded with measurement plate top surface, and work side is aligned with the measuring basis line in measurement plate.Later, along
Measuring basis line traverse measurement block 3 in measurement plate, so that measuring block 3 is contacted with the outer that tested sample naturally droops.
Step 6: read measuring block 3 with tested sample contact position the corresponding scale X (transverse width) on the first graduation mark
And the corresponding scale Y (longitudinal height) on the second graduation mark.
Step 7: calculating the pliability coefficient of fabricStep 8 is executed later.
Step 8: two second pins are pulled up, clockwise or counterclockwise tested sample if i≤3, so that by
Fibre mark line in test specimens is aligned with wherein i-th reticule, and is repeated after i is increased 1 Step 4: five, six
With seven.
If i > 3, enters step nine.
Step 9: calculating R1、R2、R3、R4Variance D (R).D (R) is smaller, then the stiffness for being tested fabric all directions is got over
Uniformly.Calculate R1、R2、R3、R4Average value M (R).M (R) is bigger, then it is more stiffening to be tested fabric.
Claims (5)
1. a kind of multi-direction stiffness test method of fabric, it is characterised in that: the test device of use includes fixed plate, measurement plate
And measuring block；The bottom of the fixed plate and the one side edge of measurement plate are fixed；The medial surface of the fixed plate is vertically arranged；Institute
The top surface for stating measurement plate is horizontally disposed；
Bottom water horizontal line, fixing line, fixed point, normal line and reticule group are provided in the fixed plate；Bottom water horizontal line
With the either flush of measurement plate；Fixing line is located above bottom water horizontal line, and is H at a distance from bottom water horizontal line；Fixed point
In the midpoint of fixing line；Normal line passes through fixed point, and perpendicular to bottom water horizontal line；
The reticule group include the 1st reticule, the 2nd reticule ..., the n-th reticule, 1≤n≤15；Pass through fixed point
Two the i-th reticules it is symmetrical about normal line, and and fixing line is at i22.5 ° of angle, i=1,2 ..., n；
Measuring basis line is provided in the measurement plate；Medial surface of the measuring basis line perpendicular to fixed plate, and and normal line
It intersects on bottom water horizontal line；The first graduation mark is provided on measuring basis line；It is provided on the work side of the measuring block
Second graduation mark；
Specific step is as follows includes: for the multi-direction stiffness test method of the fabric
Step 1: by tested fabric ironing it is smooth after, be cut into the circle that diameter is D, obtain tested sample, 10cm≤D≤
20cm, D < H；The fibre mark line by the center of circle is marked in tested sample；
Step 2: tested sample is placed on the medial surface of fixed plate, so that consolidating on the center of circle and fixed plate of tested sample
Fixed point alignment, fibre mark line and the fixation point alignment in fixed plate；First pin is plugged to the center of circle of tested sample later
Place；
Step 3: being assigned to i for 1；
Step 4: two second pins are plugged respectively at the both sides of the edge of tested sample；So that the first pin and two
Second pin is inserted in fixing line；
Step 5: measuring block is placed into measurement plate, so that the bottom end end face of measuring block is bonded with measurement plate top surface, working side
Face is aligned with the measuring basis line in measurement plate；Later, along the measuring basis line traverse measurement block in measurement plate, so that measurement
Block is contacted with tested sample；
Step 6: reading measuring block and tested sample the contact position corresponding scale X and in the second graduation mark on the first graduation mark
Upper corresponding scale Y；
Step 7: calculating the pliability coefficient of fabricStep 8 is executed later；
Step 8: two second pins are pulled up, clockwise or counterclockwise tested sample if i≤n, so that tested
Fibre mark line on sample is aligned with wherein i-th reticule, and is repeated after i is increased 1 Step 4: five, six and seven；
If i > n, enters step nine；
Step 9: R1、R2、R3、R4Numerical value is smaller, then it is more stiffening to be tested fabric.
2. the multi-direction stiffness test method of a kind of fabric according to claim 1, it is characterised in that: in step 9 also into
The following operation of row: R is calculated1、R2、R3、R4Variance D (R)；D (R) is smaller, then the stiffness for being tested fabric all directions is more equal
It is even；Calculate R1、R2、R3、R4Average value M (R)；M (R) is bigger, then it is more stiffening to be tested fabric.
3. the multi-direction stiffness test method of a kind of fabric according to claim 1, it is characterised in that: the fixed plate
On be additionally provided with place profile circle；The center of circle for placing profile circle is overlapped with fixed point, diameter D, H=0.5D+a, a=0.5cm.
4. the multi-direction stiffness test method of a kind of fabric according to claim 1, it is characterised in that: the measuring basis
It is aligned at 0 scale of the first graduation mark with fixed plate medial surface on line.
5. the multi-direction stiffness test of a kind of fabric according to claim 1, it is characterised in that: second graduation mark
0 scale is aligned with the bottom end end face of measuring block.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810902544.5A CN109142690B (en) | 2018-08-09 | 2018-08-09 | Multi-direction stiffness testing method for clothing fabric |
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| CN201810902544.5A CN109142690B (en) | 2018-08-09 | 2018-08-09 | Multi-direction stiffness testing method for clothing fabric |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579478A (en) * | 2020-05-22 | 2020-08-25 | 浙江理工大学 | Garment fabric stiffness and smoothness testing method capable of flexibly changing length of sample |
| CN112033808A (en) * | 2020-09-15 | 2020-12-04 | 北京航天雷特机电工程有限公司 | Method for testing softness of soft aramid fiber protective material |
| CN113324849A (en) * | 2021-06-08 | 2021-08-31 | 浙江理工大学 | Multi-direction garment stiffness evaluation method based on single sample |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788729A (en) * | 2012-07-26 | 2012-11-21 | 浙江理工大学 | Test method for bending performance of fabric |
| CN102980821A (en) * | 2012-11-19 | 2013-03-20 | 芜湖华烨新材料有限公司 | Method for measuring gum-dipped canvas hardness and measuring instrument therefor |
| CN103728440A (en) * | 2014-01-17 | 2014-04-16 | 浙江理工大学 | Multi-direction stiffness test device and method for fabric |
| CN105628899A (en) * | 2014-11-05 | 2016-06-01 | 恒源祥（集团）有限公司 | Method for detecting softness of hairiness on surface of clothing and detection apparatus thereof |
| CN106442163A (en) * | 2016-08-27 | 2017-02-22 | 巨石集团有限公司 | Test apparatus and test method of stiffness of glass fiber mat and cloth |
| CN206192997U (en) * | 2016-10-14 | 2017-05-24 | 浙江恒石纤维基业有限公司 | Combined material fabric stiffness tester |
| CN107576780A (en) * | 2017-09-18 | 2018-01-12 | 浙江理工大学 | A kind of fabric bending drapability method of testing and test device |
| CN107656016A (en) * | 2017-09-18 | 2018-02-02 | 浙江理工大学 | A kind of while method of test fabric hard and soft and drapability |
| CN107687967A (en) * | 2017-09-18 | 2018-02-13 | 浙江理工大学 | A kind of boardness method of testing |
| US10453664B2 (en) * | 2015-04-21 | 2019-10-22 | Battelle Memorial Institute | Collection, release, and detection of analytes with polymer composite sampling materials |
-
2018
- 2018-08-09 CN CN201810902544.5A patent/CN109142690B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788729A (en) * | 2012-07-26 | 2012-11-21 | 浙江理工大学 | Test method for bending performance of fabric |
| CN102980821A (en) * | 2012-11-19 | 2013-03-20 | 芜湖华烨新材料有限公司 | Method for measuring gum-dipped canvas hardness and measuring instrument therefor |
| CN103728440A (en) * | 2014-01-17 | 2014-04-16 | 浙江理工大学 | Multi-direction stiffness test device and method for fabric |
| CN105628899A (en) * | 2014-11-05 | 2016-06-01 | 恒源祥（集团）有限公司 | Method for detecting softness of hairiness on surface of clothing and detection apparatus thereof |
| US10453664B2 (en) * | 2015-04-21 | 2019-10-22 | Battelle Memorial Institute | Collection, release, and detection of analytes with polymer composite sampling materials |
| CN106442163A (en) * | 2016-08-27 | 2017-02-22 | 巨石集团有限公司 | Test apparatus and test method of stiffness of glass fiber mat and cloth |
| CN206192997U (en) * | 2016-10-14 | 2017-05-24 | 浙江恒石纤维基业有限公司 | Combined material fabric stiffness tester |
| CN107576780A (en) * | 2017-09-18 | 2018-01-12 | 浙江理工大学 | A kind of fabric bending drapability method of testing and test device |
| CN107656016A (en) * | 2017-09-18 | 2018-02-02 | 浙江理工大学 | A kind of while method of test fabric hard and soft and drapability |
| CN107687967A (en) * | 2017-09-18 | 2018-02-13 | 浙江理工大学 | A kind of boardness method of testing |
Non-Patent Citations (3)
| Title |
|---|
| SELIN HANIFE ERYÜRÜK1等: "THE EVALUATION OF STIFFNESS AND DRAPE BEHAVIOUR OF WOOL FABRICS", 《ARATRMA MAKALESI / RESEARCH ARTICLE》 * |
| T. CASSIDY等: "THE STIFFNESS OF KNITTED FABRICS", 《INTERNATIONAL JOURNAL OF CLOTHING SCIENCE AND TECHNOLOGY》 * |
| 孙晶晶等: "基于FAST的精纺毛织物硬挺度风格的测试研究", 《天津工业大学学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579478A (en) * | 2020-05-22 | 2020-08-25 | 浙江理工大学 | Garment fabric stiffness and smoothness testing method capable of flexibly changing length of sample |
| CN111579478B (en) * | 2020-05-22 | 2023-06-30 | 杭州万事利丝绸文化股份有限公司 | Garment fabric stiffness testing method capable of flexibly changing sample length |
| CN112033808A (en) * | 2020-09-15 | 2020-12-04 | 北京航天雷特机电工程有限公司 | Method for testing softness of soft aramid fiber protective material |
| CN113324849A (en) * | 2021-06-08 | 2021-08-31 | 浙江理工大学 | Multi-direction garment stiffness evaluation method based on single sample |
| CN113324849B (en) * | 2021-06-08 | 2022-11-11 | 浙江理工大学 | Multi-direction garment stiffness evaluation method based on single sample |
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Effective date of registration: 20230203 Address after: 230000 b-1018, Woye Garden commercial office building, 81 Ganquan Road, Shushan District, Hefei City, Anhui Province Patentee after: HEFEI WISDOM DRAGON MACHINERY DESIGN Co.,Ltd. Address before: 310018 No. 2 street, Xiasha Higher Education Park, Hangzhou, Zhejiang, 928 Patentee before: ZHEJIANG SCI-TECH University |
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Effective date of registration: 20230428 Address after: 100071 Building 1, zone 3, No. 188, southwest Fourth Ring Road, Fengtai District, Beijing Patentee after: EVE FASHION CO.,LTD. Address before: 230000 b-1018, Woye Garden commercial office building, 81 Ganquan Road, Shushan District, Hefei City, Anhui Province Patentee before: HEFEI WISDOM DRAGON MACHINERY DESIGN Co.,Ltd. |