CN112730234A - Writing board film coating viscosity testing method - Google Patents
Writing board film coating viscosity testing method Download PDFInfo
- Publication number
- CN112730234A CN112730234A CN202011622314.7A CN202011622314A CN112730234A CN 112730234 A CN112730234 A CN 112730234A CN 202011622314 A CN202011622314 A CN 202011622314A CN 112730234 A CN112730234 A CN 112730234A
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- writing
- film
- sample plate
- plate
- viscosity grade
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- 238000012360 testing method Methods 0.000 title claims abstract description 11
- 239000007888 film coating Substances 0.000 title claims description 7
- 238000009501 film coating Methods 0.000 title claims description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 5
- 238000010998 test method Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000004877 mucosa Anatomy 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a writing board coating film viscosity testing method which can effectively detect the adhesion condition of a coating film on a writing board, thereby preventing in advance and reducing loss, can judge the viscosity grade of the writing board of a qualified product, is convenient for classifying the viscosity grade of the writing board and has better economic use value.
Description
Technical Field
The invention relates to the technical field of writing boards, in particular to a writing board film coating viscosity testing method.
Background
In the case of a writing board which is used in the past and is covered with a protective film material to achieve a writing effect, if the adhesion of the adhesive film can be found in advance and prevented in advance, the loss can be effectively reduced.
Disclosure of Invention
In view of the above problems, the present invention provides a writing board coating film adhesion test method, which can effectively detect the adhesion condition of the coating film and prevent early and reduce loss.
The technical scheme is as follows: a method for testing the adhesiveness of a coating film of a writing board is characterized by comprising the following steps: which comprises the following steps:
s1, scribing a long strip on the writing template along the film pasting direction by using a tool knife:
s2, observing the adhesion condition of the protective film at the edge and the cut of the writing sample plate, judging whether the protective film floats, if so, re-processing the coated film, and continuing the step S1, otherwise, performing the next operation;
s3, when the writing sample plate is placed for 10-60 min, the adhesion condition of the protective film at the edge and the cut of the writing sample plate is observed again, if the adhesion condition is obvious, the step S1 is continued after the film is required to be processed again, and if the adhesion condition is not obvious, the next operation is carried out;
and S4, uniformly pulling up the writing sample plate from the top end to the bottom end by using a spring tension meter, observing to obtain a tension value, recording, and judging the viscosity grade by the tension value to realize the test of the coating film viscosity of the writing sample plate.
It is further characterized in that:
in the step S1, the thickness of the writing sample plate used is greater than 30 cm;
in step S1, using the tool knife to cut long strips on both sides and the middle of the writing template along the film-attaching direction, wherein the long strips have a length of 25mm and a width of 25 mm;
in the step S3, respectively scribing long strips on both sides and the middle part of the writing template, after the first observation, respectively standing the writing template for 10min, 30min, and 60min, respectively observing the adhesion condition of the protective film on the edge and the cut of the writing template again, if the protective film is obviously floated after three periods of time, continuing the step S1 after the film is re-processed, and if the protective film is not floated, performing the next operation;
in step S4, if the tension value observed by the spring tension meter is not greater than 80g, it indicates that the writing pattern is a low-viscosity grade writing board; if the tension value is between 81g and 120g, the writing sample plate is a writing plate with a medium-low viscosity grade; if the pulling force value is between 121g and 150g, the writing sample plate is a medium-viscosity grade writing plate; if the tension value is between 151g and 180g, the writing sample plate is a writing plate with medium and high viscosity grade; and if the tensile value is greater than 180g, the writing sample plate is a high-viscosity grade writing plate.
The method has the advantages that the method can effectively detect the adhesion condition of the coating film on the writing board, thereby preventing in advance and reducing loss, can judge the viscosity grade of the qualified writing board, is convenient for classifying the viscosity grade of the writing board, and has better economic use value.
Drawings
FIG. 1 is a schematic view of the structure of a writing sample in the present invention.
Detailed Description
As shown in FIG. 1, the invention relates to a method for testing the adhesiveness of a coating film of a writing board, which comprises the following steps:
s1, respectively scribing long strips at two sides and the middle part of the writing sample plate along the film pasting direction by using the tool knife, wherein the long strips are 25mm in length and 25mm in width; wherein the thickness of the adopted writing sample plate is more than 30 cm;
s2, observing the adhesion condition of the protective film at the edge and the cut of the writing sample plate, judging whether the protective film floats, if so, re-processing the coated film, and continuing the step S1, otherwise, performing the next operation;
s3, when the writing sample plate is placed for 10-60 min, the adhesion condition of the protective film at the edge and the cut of the writing sample plate is observed again, if the adhesion condition is obvious, the step S1 is continued after the film is required to be processed again, and if the adhesion condition is not obvious, the next operation is carried out;
specifically, strips are respectively scribed on two sides and the middle part of the writing sample plate, after the first observation, the writing sample plate is respectively placed for 10min, 30min and 60min, the adhesion condition of the protective film at the edge and the cut of the writing sample plate is observed again, if the protective film is obviously floated after three time periods, the step S1 is continued after the film is re-processed, and if the protective film is not floated, the next operation is carried out; the detection effect can be further improved because the observation is carried out in three time periods;
s4, uniformly pulling up the writing sample plate from the top end a to the bottom end b by using a spring tension meter, observing to obtain a tension value, recording, and judging the viscosity grade according to the tension value to realize the test of the coating film viscosity of the writing plate;
specifically, as shown in table one, the tensile value observed by the spring tension meter is not greater than 80g, which indicates that the writing sample plate is a low-viscosity grade writing plate; if the tension value is between 81g and 120g, the writing sample plate is a writing plate with a medium-low viscosity grade; if the pulling force value is between 121g and 150g, the writing sample plate is a medium-viscosity grade writing plate; if the tension value is between 151g and 180g, the writing sample plate is a writing plate with medium and high viscosity grade; and if the tensile value is greater than 180g, the writing sample plate is a high-viscosity grade writing plate.
Watch 1
| Tensile grade | Description of tensile force | Pulling force value (g/25mm) |
| A | Low viscosity | 80g (inclusive) of |
| B | Medium low viscosity | 81-120g (including) |
| C | Middle sticky tape | 121- |
| D | Middle high viscosity | 151-180g (including) |
| E | High viscosity | Over 180g |
In conclusion, according to the testing method provided by the invention, the smooth surface of the mucosa on the writing sample plate obtained by detection can be ensured, and no air bubbles exist.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A method for testing the adhesiveness of a coating film of a writing board is characterized by comprising the following steps: which comprises the following steps:
s1, scribing a long strip on the writing template along the film pasting direction by using a tool knife:
s2, observing the adhesion condition of the protective film at the edge and the cut of the writing sample plate, judging whether the protective film floats, if so, re-processing the coated film, and continuing the step S1, otherwise, performing the next operation;
s3, when the writing sample plate is placed for 10-60 min, the adhesion condition of the protective film at the edge and the cut of the writing sample plate is observed again, if the adhesion condition is obvious, the step S1 is continued after the film is required to be processed again, and if the adhesion condition is not obvious, the next operation is carried out;
and S4, uniformly pulling up the writing sample plate from the top end to the bottom end by using a spring tension meter, observing to obtain a tension value, recording, and judging the viscosity grade by the tension value to realize the test of the coating film viscosity of the writing sample plate.
2. The writing board film coating adhesion test method according to claim 1, characterized in that: in the step S1, the thickness of the writing board used is greater than 30 cm.
3. The writing board film coating adhesion test method according to claim 1, characterized in that: in step S1, the tool blade is used to scribe long lines of 25mm in length and 25mm in width on both sides and the middle of the writing template in the film-attaching direction.
4. The writing board film coating adhesion test method according to claim 1, characterized in that: in the step S3, stripes are respectively drawn on both sides and the middle portion of the writing pattern, and after the first observation, when the writing pattern is left for 10min, 30min, and 60min, respectively, the adhesion of the protective film on the edge and the cut portion of the writing pattern is observed again, and if the pattern is obviously floated after three periods of time, the step S1 is continued after the film is reworked, and if the pattern is not left, the next operation is performed.
5. The writing board film coating adhesion test method according to claim 1, characterized in that: in step S4, if the tension value observed by the spring tension meter is not greater than 80g, it indicates that the writing pattern is a low-viscosity grade writing board; if the tension value is between 81g and 120g, the writing sample plate is a writing plate with a medium-low viscosity grade; if the pulling force value is between 121g and 150g, the writing sample plate is a medium-viscosity grade writing plate; if the tension value is between 151g and 180g, the writing sample plate is a writing plate with medium and high viscosity grade; and if the tensile value is greater than 180g, the writing sample plate is a high-viscosity grade writing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011622314.7A CN112730234A (en) | 2020-12-30 | 2020-12-30 | Writing board film coating viscosity testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011622314.7A CN112730234A (en) | 2020-12-30 | 2020-12-30 | Writing board film coating viscosity testing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112730234A true CN112730234A (en) | 2021-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011622314.7A Pending CN112730234A (en) | 2020-12-30 | 2020-12-30 | Writing board film coating viscosity testing method |
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| Country | Link |
|---|---|
| CN (1) | CN112730234A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101192505A (en) * | 2006-11-20 | 2008-06-04 | 上海华虹Nec电子有限公司 | Membrane viscosity measurement method |
| CN202502016U (en) * | 2012-01-09 | 2012-10-24 | 周俊刚 | Electrical device product tensile test stand |
| CN102954934A (en) * | 2011-08-26 | 2013-03-06 | 松扬电子材料(昆山)有限公司 | Method of plate-sticking test of coverlay and lamination machine used therefor |
| CN105334160A (en) * | 2015-10-14 | 2016-02-17 | 京东方科技集团股份有限公司 | Thin film adhesion testing equipment and thin film adhesion testing method |
| CN106596396A (en) * | 2016-12-09 | 2017-04-26 | 张家港市利奇塑料有限公司 | Low temperature testing method for glue properties of self adhesive floor |
| CN109211778A (en) * | 2018-09-05 | 2019-01-15 | 信利半导体有限公司 | A kind of viscous force test method of double faced adhesive tape |
| CN109445144A (en) * | 2019-01-25 | 2019-03-08 | 南京中电熊猫平板显示科技有限公司 | A kind of liquid crystal display detection device and its detection method |
-
2020
- 2020-12-30 CN CN202011622314.7A patent/CN112730234A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101192505A (en) * | 2006-11-20 | 2008-06-04 | 上海华虹Nec电子有限公司 | Membrane viscosity measurement method |
| CN102954934A (en) * | 2011-08-26 | 2013-03-06 | 松扬电子材料(昆山)有限公司 | Method of plate-sticking test of coverlay and lamination machine used therefor |
| CN202502016U (en) * | 2012-01-09 | 2012-10-24 | 周俊刚 | Electrical device product tensile test stand |
| CN105334160A (en) * | 2015-10-14 | 2016-02-17 | 京东方科技集团股份有限公司 | Thin film adhesion testing equipment and thin film adhesion testing method |
| CN106596396A (en) * | 2016-12-09 | 2017-04-26 | 张家港市利奇塑料有限公司 | Low temperature testing method for glue properties of self adhesive floor |
| CN109211778A (en) * | 2018-09-05 | 2019-01-15 | 信利半导体有限公司 | A kind of viscous force test method of double faced adhesive tape |
| CN109445144A (en) * | 2019-01-25 | 2019-03-08 | 南京中电熊猫平板显示科技有限公司 | A kind of liquid crystal display detection device and its detection method |
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Application publication date: 20210430 |