CN107576595A - The detection method of leather watchband water proofing property - Google Patents
The detection method of leather watchband water proofing property Download PDFInfo
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- CN107576595A CN107576595A CN201711005566.3A CN201711005566A CN107576595A CN 107576595 A CN107576595 A CN 107576595A CN 201711005566 A CN201711005566 A CN 201711005566A CN 107576595 A CN107576595 A CN 107576595A
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Abstract
The present invention relates to a kind of detection method of leather watchband water proofing property, including：A kind of solvent group for the detection of leather watchband water proofing property is provided, i.e., multiple solvents that surface tension is sequentially reduced, represents elevated multiple grades successively；Since solvent group the maximum solvent of surface tension, multiple solvents are added dropwise to leather watchband surface to be measured successively and form drop；Judge Infiltrating of the drop on leather watchband surface to be measured；And water proofing property grade of the grade as leather watchband to be measured corresponding to the drop that will be formed to the minimum solvent of surface tension in the nonwettable drop of leather watchband to be measured.
Description
Technical field
The present invention relates to leather water-proof detection technique field, more particularly to the detection method of leather watchband water proofing property.
Background technology
Currently, instrument is counted when wrist-watch (watch) has served not only as a kind of simple, and is that one kind has cultural connotation
With the product of voguish style.Therefore, purchase watch product will not only consider quality when walking and the appearance design of watch, it is also contemplated that
The factors such as brand culture, precision process and the wearing purposes of watch.Leather watchband with its comfortable wearing and low-key it is cultured
Makings be increasingly becoming further lifting wearer sample image necessity.
For the self structure of leather, leather is collagenous fibres and tanning agent and other chemical products formed it is compound
Body, there is stronger hydrophily.Therefore, if leather products without waterproof it is (hydrophobic) processing, will show poor adaptability and
Weatherability.However, current horological industry detects on the standardization in the detection method of leather watchband without reference to water resistance
Flow.Existing detection method, mainly use for reference the leather water-proof method of testing GB/T 22890- of Bally penetration tests
2008《The measure of leather physics and mechanical test softness leather water resistance》、GB/T 22891-2008《Leather physics and machinery
Test the measure of heavy leather water resistance》And use for reference the leather water-proof performance test methods GB/T 22890- of static water absorption method
2008《Leather physics and mechanical test static measurement of absorption of water》, testing procedure is cumbersome, and efficiency is relatively low, and can be to leather watchband
Cause unnecessary loss, for example Italian import calf-leather Band of fast-selling leather watchband especially relatively high to cost and crocodile
Fish-skin watchband etc., loss are more prominent.
The content of the invention
Based on this, it is necessary to have that testing procedure is cumbersome, and efficiency is inclined for traditional leather watchband water proofing property detection method
It is low, and the problem of unnecessary loss can be caused to leather watchband, there is provided a kind of detection method and use of leather watchband water proofing property
In the solvent group of leather watchband water proofing property detection.
A kind of detection method of leather watchband water proofing property, including：
There is provided it is a kind of for leather watchband water proofing property detection solvent group, i.e., multiple solvents that surface tension is sequentially reduced,
Represent water proofing property elevated multiple grades successively；
Since the solvent group the maximum solvent of surface tension, the multiple solvent is added dropwise to leather to be measured successively
Watchband surface forms drop；
Judge Infiltrating of the drop on the leather watchband surface to be measured；And
The drop pair that the minimum solvent of surface tension in the nonwettable drop of leather watchband to be measured will be formed
Water proofing property grade of the grade answered as the leather watchband to be measured.
In one of the embodiments, in the solvent group for the detection of leather watchband water proofing property, the multiple solvent
For four solvents, the multiple grade is C, B, A and AA level, and the surface tension of solvent corresponding to the C levels is 33.0mN/m；Institute
The surface tension for stating solvent corresponding to B levels is 27.5mN/m；The surface tension of solvent corresponding to the A levels is 25.4mN/m；Institute
The surface tension for stating solvent corresponding to AA levels is 24.5~24.0mN/m；Solvent corresponding to the C levels is 5 by mass ratio：1 water
Dissolve each other to obtain with isopropanol；Solvent corresponding to the B levels is 3 by mass ratio：1 water dissolves each other to obtain with isopropanol；The A levels are right
The solvent answered is 2 by mass ratio：1 water dissolves each other to obtain with isopropanol；Solvent corresponding to the AA levels is for ethanol or by mass ratio
For (0.85~1.27)：1 pure water dissolves each other to obtain with isopropanol.
In one of the embodiments, the multiple solvent is added dropwise to leather watchband surface to be measured successively and forms drop,
Including：Stop being added dropwise when a certain solvent in the multiple solvent infiltrates the leather watchband surface to be measured.
In one of the embodiments, formed the multiple solvent is added dropwise into the leather watchband surface to be measured successively
Before the drop, in addition to the leather watchband to be measured is pre-processed, the pretreatment includes bending, tension-torsion, friction, spoke
According to, corrosion and storage at least one of.
In one of the embodiments, the bending includes：Carried out after the leather watchband to be measured is soaked in pure water
Bending 2000~3000 times.
In one of the embodiments, the tension-torsion includes：Torsion 1000~1500 is carried out to the leather watchband to be measured
It is secondary.
In one of the embodiments, the friction includes：The leather watchband to be measured rub for 1000~1500 times
Wipe.
In one of the embodiments, the irradiation includes：Ultraviolet light is carried out to the leather watchband to be measured, it is described
280~400nm of wavelength of ultraviolet light, the intensity of the ultraviolet light is (25 ± 0.4) W/m2。
In one of the embodiments, the corrosion includes：The people of 24~48 hours is carried out to the leather watchband to be measured
Work sweat corrodes, and then dries.
In one of the embodiments, the storage includes：The leather watchband to be measured is deposited in standard storage environment
Put 3~6 months.
The detection method of above-mentioned leather watchband water proofing property, using the solvent with different surfaces tension force as solvent group, from
The maximum solvent of surface tension starts to be added dropwise to formation drop in leather watchband surface to be measured successively in solvent group, improves test
Normalization, while leather watchband surface nondestructive is consumed, it will not also damage the surface topography and performance of leather watchband product.It is logical
The Infiltrating for judging drop on leather watchband surface is crossed, the minimum corresponding grade of surface tension in nonwettable drop is made
For the classification of waterproof of leather watchband to be measured.With succinct convenience, it is easy to grasp ground advantage, leather watchband waterproof can be effectively improved
The detection efficiency of performance, beneficial to industrialization, it can effectively be promoted demonstration in leather watchband water resistance standardizes detection.
Brief description of the drawings
Fig. 1 is Infiltrating schematic diagram of the solvent in the embodiment of the present invention on leather watchband surface to be measured, and a is not infiltrate
Figure；B schemes for infiltration.
Fig. 2 is Infiltrating experiment photo of the solvent in the embodiment of the present invention on leather watchband surface to be measured, and a is not infiltrate
Figure；B schemes for infiltration.
Wherein,
100- drops；
200- leather watchbands to be measured.
Embodiment
In order that the purpose of the present invention, technical scheme and technique effect are more clearly understood, below in conjunction with accompanying drawing to this hair
Bright specific embodiment is described.It should be appreciated that specific embodiment described herein is only to explain the present invention, and do not have to
It is of the invention in limiting.
The embodiment of the present invention provides a kind of detection method of leather watchband water proofing property, including：
There is provided it is a kind of for leather watchband water proofing property detection solvent group, i.e., multiple solvents that surface tension is sequentially reduced,
Represent water proofing property elevated multiple grades successively；
Since multiple solvents the maximum solvent of surface tension, multiple solvents are added dropwise to leather watchband table to be measured successively
Face forms drop；
Judge Infiltrating of the drop on leather watchband surface to be measured；And
Grade corresponding to the drop that will be formed to the minimum solvent of surface tension in the nonwettable drop of leather watchband to be measured
Water proofing property grade as leather watchband to be measured.Leather watchband to be measured is preferably with a batch of multiple leather watchbands, Duo Gerong
Agent is added dropwise to the accuracy on a batch of multiple leather watchband surfaces, tested with raising respectively.The material of leather watchband to be measured
Matter can be ox-hide, crocodile skin, lizard skin, sharkskin, snakeskin, ostrich skin etc..
Preferably, multiple dropwise addition sites can be chosen on leather watchband surface to be measured, to improve the accuracy of detection.Choose
At least 2~4 dropwise addition sites, it is multiple be added dropwise sites intervals can be 1~3cm, respectively it is multiple dropwise addition sites dropwise addition 10~
15 μ L solvents.
Preferably, surface tension maximum in multiple solvents is 33.0mN/m, minimum surface tension is 24.5~
24.0mN/m.It is further preferable that multiple solvents are to dissolve each other to obtain by the alcohols and water of different proportion, so that solvent has preferably
Volatility, after test can by wipe, dry or air-dry etc. ease of Use can by solvent from leather watchband surface remove.
Further, multiple solvents are preferably arranged to four solvents, and the multiple grades for representing water proofing property are set from low to high
For C, B, A and AA level.Wherein, the surface tension of solvent corresponding to C levels is 33.0mN/m, can be 5 by mass ratio：1 water with
Isopropanol dissolves each other to obtain；The surface tension of solvent corresponding to B levels is 27.5mN/m, can be 3 by mass ratio：1 water and isopropyl
Alcohol dissolves each other to obtain；The surface tension of solvent corresponding to A levels is 25.4mN/m, can be 2 by mass ratio：1 water and isopropanol are mutual
It is molten to obtain；The surface tension of solvent corresponding to AA levels is 24.5~24.0mN/m, can be ethanol, can also be by mass ratio
(0.85~1.27)：1 pure water dissolves each other to obtain with isopropanol.
Refer to Fig. 1 and Fig. 2, in detection process, be added dropwise successively by the maximum solvent of surface tension, when multiple solvents
In a certain solvent stop when infiltrating leather watchband surface to be measured being added dropwise.When the solvent that surface tension in multiple solvents is maximum
When (such as C levels solvent) infiltrates leather watchband to be measured, judge that leather watchband to be measured does not have water proofing property grade.When surface tension is maximum
Solvent (such as C levels solvent) when not infiltrating leather watchband to be measured, choose second largest solvent (such as B levels solvent) of surface tension and carry out
It is added dropwise；When the drop of second largest solvent of surface tension (such as B levels solvent) infiltrates on leather watchband surface to be measured, then skin to be measured
It is grade (such as C levels) corresponding to the maximum solvent of surface tension to remove from office watchband；When second largest solvent of surface tension (such as B levels solvent)
Drop when not infiltrated on leather watchband surface to be measured, choose the third-largest solvent (such as A levels solvent) of surface tension and be added dropwise；
By that analogy, until being added dropwise to the minimum solvent (such as AA levels solvent) of surface tension.If all solvents are to leather watchband to be measured
Do not infiltrate, then leather watchband to be measured is grade (such as AA levels) corresponding to the minimum solvent of surface tension.
Infiltration in the application refers to drop 100 and spreads and penetrate into the given time in leather watchband 200 to be measured, so as to nothing
Method keeps droplet profile on the surface of leather watchband 200 to be measured.The scheduled time can be configured as needed, such as can be 1
To 3 minutes.
The static water proofing property detection of leather watchband refers to directly carries out water proofing property inspection by leather watchband to be measured by above-mentioned steps
Survey.In another embodiment, the dynamic water-proof detection of leather watchband can be carried out, i.e., is treated multiple solvents are added dropwise to successively
Before surveying leather watchband surface formation drop, it can also include pre-processing leather watchband to be measured, pretreatment includes bending, drawn
At least one of turn round, rub, irradiate, corrode and store.
Bending can be included after leather watchband to be measured is soaked with pure water, carry out bending 2000~3000 times.Preferably, it is curved
Bent angle is 90 °.Soak time is preferably 5 minutes to 10 minutes.Bending can be carried out on flexural fatigue test machine.
Tension-torsion can include leather watchband to be measured carrying out torsion 1000~1500 times.Preferably, pulling force 50N, torsion
0.6Nm, 60 beats/min of torsional frequency.Tension-torsion can be carried out on torsion tester.
Friction can include leather watchband to be measured carrying out 1000~1500 frictions.Preferably, with quality be 500~
1000g variable weights apply pressure, and the inner surface of leather watchband is rubbed with felt.Friction can frictional testing machine again
Upper progress.
Irradiation can include leather watchband to be measured carrying out ultraviolet light, the wavelength of ultraviolet light wave for 280~
400nm, uitraviolet intensity are (25 ± 0.4) W/m2.Preferably, distance of the leather watchband surface away from light source to be measured is not less than
20cm, irradiation time are no less than 48 hours.
Corrosion includes corroding the artificial perspiration that leather watchband to be measured is carried out 24~48 hours, then dries.Preferably, corrode
Handle to be carried out in container.
Storage includes in standard storage environment depositing leather watchband to be measured 3~6 months.
The embodiment of the present invention also provides a kind of solvent group for the detection of leather watchband water proofing property, including surface tension is successively
The multiple solvents reduced, elevated multiple grades successively are represented, for the water proofing property grade as leather watchband to be measured, be preferably
Water proofing property grade as leather watchband to be measured is used for according to the detection method of the leather watchband water proofing property.
In one embodiment, multiple solvents are four solvents, multiple grades C, B, A and AA level, solvent corresponding to C levels
Surface tension is 33.0mN/m；The surface tension of solvent corresponding to B levels is 27.5mN/m；The surface tension of solvent corresponding to A levels
For 25.4mN/m；The surface tension of solvent corresponding to AA levels is 24.5~24.0mN/m；Solvent corresponding to C levels is 5 by mass ratio：
1 water dissolves each other to obtain with isopropanol；Solvent corresponding to B levels is 3 by mass ratio：1 water dissolves each other to obtain with isopropanol；A levels are corresponding
Solvent by mass ratio be 2：1 water dissolves each other to obtain with isopropanol；Solvent corresponding to AA levels is ethanol or is (0.85 by mass ratio
~1.27)：1 pure water dissolves each other to obtain with isopropanol.
Embodiment
Detection object：The pure ox-hide waterproof watch band of import do not deposited, the domestic pure ox-hide waterproof watch band do not deposited, do not deposit
Super hydrophobic surface handle domestic pure calf-leather Band, the non-watertight watchband of the pure ox-hide of import do not deposited, the domestic pure ox do not deposited
The non-watertight watchband of skin, the pure ox-hide waterproof watch band of import for depositing 6 months, the domestic pure ox-hide waterproof watch band for depositing 6 months, storage
The super hydrophobic surface of 6 months handles domestic pure calf-leather Band.
Detection reagent：The solvent that pure water is mixed to get in mass ratio with isopropanol.
Testing conditions：25 DEG C of room temperature, humidity ＜ 70%RH.
1) static water proofing property detection is carried out to different types of leather watchband：
S110, leather watchband inner surface choose at least 2~4 detection sites, each site at intervals of 1~3cm, position
Point is chosen at the region for avoiding suture and punching；
S120, since C level reagents, solvent is drawn with liquid-transfering gun/pipettor, 10~15 μ L drops are added dropwise in everybody point respectively
During liquid, the surface of dropper mouth and leather watchband keeps 1~2cm height, and avoids drop instilling stitched area；
S130,3min is stood by the leather watchband that drop has solvent, and infiltration of the drops in leather watchband is observed using visual angle as 45 °
Situation, if not infiltrating, i.e., drop without spread and penetrate into watchband in and droplet profile it is full, then in same batch leather watchband product
The drop experiment that another sample carries out lower level successively is chosen, to determine the water resistance highest ranking of leather watchband.
2) dynamic water-proof detection is carried out to different types of leather watchband：
(1) resist bending water proofing property survey is carried out to leather watchband：Leather watchband is soaked into 10min with pure water, curved after taking-up
The bend test of 90 ° of progress 2000~3000 times on bent fatigue tester, the static water proofing property detection in carrying out 1).
(2) waterproofing tests of resistance to tension-torsion are carried out to leather watchband：By leather watchband and watch shell junction button synthesis of cyclic, put
In being rocked on torsion tester, testing machine parameter is arranged to pulling force 50N, torsion 0.6Nm, 60 beats/min of torsional frequency,
Reverse 1000~1500 times, the static water resistance test in carrying out 1).
(3) rub resistance water proofing property detection is carried out to leather watchband：Leather watchband is fixed on frictional testing machine, provided
Pressure under：Variable weights quality is 500~1000g, and 1000~1500 are carried out to the inner surface cortex of watchband with defined felt
Secondary friction test, the static water resistance detection in carrying out 1).
(4) resistance to irradiation water proofing property detection is carried out to leather watchband：Leather watchband is subjected to ultraviolet light experiment, ultraviolet
The wavelength of light wave is 280~400nm, and uitraviolet intensity is (25 ± 0.4) W/m2, distance of the surface away from light source of leather watchband is not
Less than 20cm, irradiation time is no less than 48 hours, the static water resistance detection in carrying out 1).
(5) corrosion-resistant water proofing property detection is carried out to leather watchband：Leather watchband carries out in defined container to 24~
48hour artificial perspiration's Corrosion standards experiment, and dry, the static water resistance detection in carrying out 1).
Testing result：
Remarks：" NG " refers to off grade, i.e., spreads and penetrated into sample table band within C levels solvent 1min.
The detection method of the leather watchband water proofing property of the embodiment of the present invention, made using isopropanol obtained solvent miscible with water
For detection reagent, possess preferable volatility and non-corrosiveness, make the easily drying or air-dried and free from extraneous odour of the leather watchband after detection,
And leather watchband surface will not be caused to be lost；Meanwhile isopropanol obtained solvent miscible with water is set into different grades,
With different quality when surface tension, the normalization of test is improved, can be in the leather watchband water resistance mark of horological industry
Demonstration is effectively promoted in standardization detection.After detection method using the present invention, the table of leather watchband product will not be damaged
Face pattern and performance.Detection method provided by the invention succinctly facilitates, is easy to grasp, and can effectively improve leather watchband and prevent
The detection efficiency of water-based energy, beneficial to industrialization.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. detection method of leather watchband water proofing property, it is characterised in that including：A kind of solvent group for the detection of leather watchband water proofing property is provided, i.e., multiple solvents that surface tension is sequentially reduced, represented Water proofing property elevated multiple grades successively；Since the solvent group the maximum solvent of surface tension, the multiple solvent is added dropwise to leather watchband to be measured successively Surface forms drop；Judge Infiltrating of the drop on the leather watchband surface to be measured；AndCorresponding to the drop that will be formed to the minimum solvent of surface tension in the nonwettable drop of leather watchband to be measured Water proofing property grade of the grade as the leather watchband to be measured.
- 2. the detection method of leather watchband water proofing property according to claim 1, it is characterised in that described to be used for leather watchband In the solvent group of water proofing property detection, the multiple solvent is four solvents, and the multiple grade is C, B, A and AA level, the C levels The surface tension of corresponding solvent is 33.0mN/m；The surface tension of solvent corresponding to the B levels is 27.5mN/m；The A levels The surface tension of corresponding solvent is 25.4mN/m；The surface tension of solvent corresponding to the AA levels is 24.5~24.0mN/m； Solvent corresponding to the C levels is 5 by mass ratio：1 water dissolves each other to obtain with isopropanol；Solvent is by mass ratio corresponding to the B levels For 3：1 water dissolves each other to obtain with isopropanol；Solvent corresponding to the A levels is 2 by mass ratio：1 water dissolves each other to obtain with isopropanol； Solvent corresponding to the AA levels is ethanol or is (0.85~1.27) by mass ratio：1 pure water dissolves each other to obtain with isopropanol.
- 3. the detection method of leather watchband water proofing property according to claim 1, it is characterised in that by the multiple solvent according to It is secondary to be added dropwise to leather watchband surface to be measured and form drop, including：When a certain solvent in the multiple solvent is to the skin to be measured Stop being added dropwise when removing from office the infiltration of watchband surface.
- 4. the detection method of leather watchband water proofing property according to claim 1, it is characterised in that by the multiple solvent It is added dropwise to successively before the leather watchband surface to be measured forms the drop, in addition to the leather watchband to be measured is located in advance Reason, the pretreatment include at least one of bending, tension-torsion, friction, irradiation, corrosion and storage.
- 5. the detection method of leather watchband water proofing property according to claim 4, it is characterised in that the bending includes：Will The leather watchband to be measured carries out bending 2000~3000 times after being soaked in pure water.
- 6. the detection method of leather watchband water proofing property according to claim 4, it is characterised in that the tension-torsion includes：It is right The leather watchband to be measured carries out torsion 1000~1500 times.
- 7. the detection method of leather watchband water proofing property according to claim 4, it is characterised in that the friction includes：It is right The leather watchband to be measured carries out 1000~1500 frictions.
- 8. the detection method of leather watchband water proofing property according to claim 4, it is characterised in that the irradiation includes：It is right The leather watchband to be measured carries out ultraviolet light, and the wavelength of the ultraviolet light is 280~400nm, the ultraviolet lighting The intensity penetrated is (25 ± 0.4) W/m2。
- 9. the detection method of leather watchband water proofing property according to claim 4, it is characterised in that the corrosion includes：It is right The leather watchband to be measured carries out artificial perspiration's corrosion of 24~48 hours, then dries.
- 10. the detection method of leather watchband water proofing property according to claim 4, it is characterised in that the storage includes：Will The leather watchband to be measured is deposited 3~6 months in standard storage environment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711005566.3A CN107576595A (en) | 2017-10-25 | 2017-10-25 | The detection method of leather watchband water proofing property |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711005566.3A CN107576595A (en) | 2017-10-25 | 2017-10-25 | The detection method of leather watchband water proofing property |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246245A (en) * | 1985-08-26 | 1987-02-28 | Unitika Ltd | Method and apparatus for measuring waterproofness of cloth |
| CN1086544A (en) * | 1992-11-02 | 1994-05-11 | 瑞华实业股份有限公司 | The leather manufacture method of the ventilative and waterproof of tool |
| CN101149325A (en) * | 2007-10-09 | 2008-03-26 | 浙江理工大学 | Textile water-proof performance automatic detection method and detection system |
-
2017
- 2017-10-25 CN CN201711005566.3A patent/CN107576595A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6246245A (en) * | 1985-08-26 | 1987-02-28 | Unitika Ltd | Method and apparatus for measuring waterproofness of cloth |
| CN1086544A (en) * | 1992-11-02 | 1994-05-11 | 瑞华实业股份有限公司 | The leather manufacture method of the ventilative and waterproof of tool |
| CN101149325A (en) * | 2007-10-09 | 2008-03-26 | 浙江理工大学 | Textile water-proof performance automatic detection method and detection system |
Non-Patent Citations (2)
| Title |
|---|
| THE AUTHORITY OF THE STANDARDS POLICY AND STRATEGY COMMITTEE: "Textiles - Aqueous liquid repellency - Water/alcohol solution resistance test ISO 23232:2009", 《BRITISH STANDARDS》 * |
| 龚英 等: "聚焦第30届IULTCS会议", 《中国皮革》 * |
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