CN108956456A - A method of detection paper surface coating homogeneity - Google Patents
A method of detection paper surface coating homogeneity Download PDFInfo
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- CN108956456A CN108956456A CN201811097237.0A CN201811097237A CN108956456A CN 108956456 A CN108956456 A CN 108956456A CN 201811097237 A CN201811097237 A CN 201811097237A CN 108956456 A CN108956456 A CN 108956456A
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- Prior art keywords
- paper
- pen
- show
- rectilinear strip
- paper surface
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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
- G01N19/08—Detecting presence of flaws or irregularities
Abstract
The present invention relates to material surface detection field, specifically disclose a kind of method for detecting paper surface coating homogeneity of the dynamic surface coefficient of friction less than 0.25, this method comprises: with pen tip thickness be 0.5mm pen paper surface with
Description
Technical field
The invention belongs to material surface detection fields, and in particular to a method of detection paper surface coating homogeneity.
Background technique
Temperature-sensitive print paper is one of dedicated consumptive material of digital integral rapid printer, and the printing quality of digital integral rapid printer is fine or not,
It is also related with the quality of temperature-sensitive print paper in addition to the boards factor such as resolution ratio of board itself.Make integrated function continuously normally
Version printing, and reach good printing effect, the film surface of temperature-sensitive print paper has to apply one layer of coating layer (silicon layer), and is coated with
Will uniformly, wrinkle version when otherwise there is temperature-sensitive print paper difficult into machine, printing cannot continuously make a plate, the printing issues such as printing quality difference,
Even because plate-making electrostatic burns out greatly thermal head etc..Therefore, the coating quality of temperature-sensitive print paper is one in temperature-sensitive print paper mass parameter
Item important parameter.There are two types of the common detection methods of temperature-sensitive print paper coating quality: one is the film surface hand of temperature-sensitive print paper is light
Light rubbing friction, feels the slickness of its film surface, and such method is simple to operate, but since film surface and film surface are face and face
Contact, can only simply judge its film surface coating condition, can not judge whether that coating is uniform；Another detection method is rubbed with surface
Coefficient instrument is wiped to test the slickness of film surface, although this instrument test method can measure the specific friction co-efficient value of film surface,
But its test philosophy is still contact of the face with face as first method, and such test method needs expensive tester
Device, test process is cumbersome, can manage it for laboratory test or factory parameter value test, but be not suitable for detecting in process of production
Whether temperature-sensitive protective layer is uniform, it has not been convenient to random test when millboard is chosen in normal conventional test or user.
Summary of the invention
The purpose of the invention is to overcome using side used by existing method detection temperature-sensitive print paper surface uniformity
Disadvantages described above existing for method, and a kind of method of new detection paper surface coating homogeneity is provided.
Specifically, the present invention provides a kind of method for detecting paper surface coating homogeneity, the paper surface is moved
State skin-friction coefficient is less than 0.25, wherein this method comprises: with pen the paper surface withLoad, 65 ° ±
0.5 ° of angle and the speed of (4.5 ± 0.5) m/min draw straight line, and the pen tip thickness of the pen is 0.5mm, observe the straight line
Ink marks continuity and line width uniformity；
(i) when rectilinear strip is continuous or rectilinear strip is discontinuous but point with point interval uniformly and line width uniformly and width
When no more than 0.2mm, then show that the surface coating of the paper is uniform；
(ii) thin when thick when the ink marks of rectilinear strip, rectilinear strip intermittently and between points interval it is uneven or
When person's line width is uneven, then show that the crawling of the paper is even；
(iii) when line width is more than 0.2mm, then show that the crawling of the paper is even.
Wherein, (i) in actually include following two situation: rectilinear strip is continuous and line width uniformly and width is no more than
0.2mm, rectilinear strip is discontinuously but point is spaced uniform and line width uniformly with point and width is no more than 0.2mm.
(ii) situation is included the following three types in actually: it is thin when thick when the ink marks of rectilinear strip, lines intermittently and point with
Interval is uneven between point, and line width is uneven.
The method of detection paper surface coating homogeneity provided by the invention can be only in any of paper surface to be detected
Straight line is drawn to judge its coating homogeneity in position, but in view of the coating homogeneity of same paper different location exists centainly
Difference, therefore, in order to more fully be tested and assessed to paper, it is preferable that the paper surface draw straight line mode be cross
To the straight line parallel with respectively drawing several vertically, when all straight lines are all satisfied (i), just show that the surface coating of the paper is equal
It is even, otherwise then it is unevenly coated；It is highly preferred that several parallel straight lines are uniformly distributed in the paper surface；Most preferably,
The distance between adjacent two straight lines are 0.8-1.2cm in several parallel straight lines.
Method provided by the invention is suitable for the table to existing various paper of the dynamic surface coefficient of friction less than 0.25
Face coating homogeneity is detected, and the specific example of the paper includes but is not limited to: temperature-sensitive print paper and/or release paper.Wherein,
The manufacturing theory of the temperature-sensitive print paper is to be coated with one layer of temperature-sensitive protective layer formed by sensitive stock on high-quality body paper surface.It is described
Release paper is also known as silicone oil paper, is usually made of three-decker, and first layer is base stock, and the second layer is lamination, and third layer is silicone oil.
It can be easy to detect the coating homogeneity of the temperature-sensitive print paper surface temperature-sensitive protective layer using method provided by the invention, and
Detect the coating homogeneity of release paper surface silicone oil.
The present invention does not limit the type of the pen, as long as ink marks can be shown on paper and to meet pen tip thick
Carefully it is no more than 0.5mm, such as can is at least one of pencil, pen, ball pen etc., preferably pen and/or circle
Pearl pen.Wherein, the specific example of the ball pen includes but is not limited to: gel ink pen, oiliness ball pen, aqueous ballpoint pen and erasable
At least one of ball pen.
Beneficial effects of the present invention are as follows:
(1) detected is the coating homogeneity of paper surface between points, than the coating between existing face and face
Uniformity detecting method is finer, more acurrate；
(2) operation is very simple, and detection instrument is the pen of a routine, almost without cost；
(3) testing result is intuitive, and can quickly and accurately judge the surface coating homogeneity of paper.
Specific embodiment
The embodiment of the present invention is described below in detail, the examples of the embodiments are intended to be used to explain the present invention, and cannot
It is interpreted as limitation of the present invention.In the examples where no specific technique or condition is specified, described according to the literature in the art
Technology or conditions or carried out according to product description.Reagents or instruments used without specified manufacturer is that can lead to
Cross the conventional products of commercially available acquisition.
Embodiment 1
Taking a temperature-sensitive print paper to be detected, (the dynamic surface coefficient of friction of temperature-sensitive protective layer is less than in the temperature-sensitive print paper
0.25), with pen tip thickness be 0.5 gel ink pen withLoad, 65 ° ± 0.5 ° of angle and (4.5 ± 0.5) m/
On the surface of temperature-sensitive protective layer with straight line laterally parallel with respectively drawing several vertically, these parallel straight lines exist the speed of min
Temperature-sensitive protective layer is uniformly distributed and the distance between adjacent two straight lines are 0.8cm.The results show that all straight lines or
Lines are discontinuous but point with point interval uniformly and line width uniformly and width is no more than 0.2mm or lines are continuous and line width
Uniformly and width is no more than 0.2mm, it is possible thereby to judge that the surface coating of the temperature-sensitive print paper is uniform.
In order to examine the accuracy of this method, using skin-friction coefficient instrument to the temperature-sensitive print paper surface temperature-sensitive protective layer
Slickness is detected, its coefficient of friction is very low as the result is shown, and only 0.12.It can be seen that using method provided by the invention
Paper surface coating homogeneity is detected, as a result reliably.
Embodiment 2
A release paper (the dynamic surface coefficient of friction of silicone oil layer surface is less than 0.25 in the release paper) to be detected is taken,
With pen tip thickness be 0.5 gel ink pen withLoad, the speed of 65 ° ± 0.5 ° of angle and (4.5 ± 0.5) m/min
It spends on the surface of silicon layer with straight line laterally parallel with respectively drawing several vertically, these parallel straight lines are equal in silicone oil layer surface
It is even distribution and the distance between adjacent two straight lines be 1.2cm.The results show that the ink marks of all straight lines it is equal or when it is thick when
Carefully or lines are spaced intermittently and between points unevenly, it is possible thereby to judge the crawling of the release paper
It is even.
In order to examine the accuracy of this method, using skin-friction coefficient instrument to the slickness of the release paper surface silicon layer
It is detected, its coefficient of friction is higher as the result is shown, is 0.38.It can be seen that using method provided by the invention to paper table
Face coating homogeneity is detected, as a result reliably.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (7)
1. a kind of method for detecting paper surface coating homogeneity, the dynamic surface coefficient of friction of the paper surface are less than
0.25, which is characterized in that this method comprises: with pen the paper surface withLoad, 65 ° ± 0.5 ° of angle with
And the speed of (4.5 ± 0.5) m/min draws straight line, the pen tip thickness of the pen is 0.5mm, observes the ink marks continuity of the straight line
And line width uniformity；
(i) when rectilinear strip is continuous or rectilinear strip is discontinuous but point is spaced uniform and line width uniformly with point and width does not surpass
When crossing 0.2mm, then show that the surface coating of the paper is uniform；
(ii) thin when thick when the ink marks of rectilinear strip, rectilinear strip is spaced uneven or line intermittently and between points
When width is uneven, then show that the crawling of the paper is even；
(iii) when line width is more than 0.2mm, then show that the crawling of the paper is even.
2. the method according to claim 1, wherein being laterally and perpendicular in the mode that the paper surface draws straight line
Several parallel straight lines are respectively directly drawn, when all straight lines are all satisfied (i), just show that the surface coating of the paper is uniform, otherwise
Then it is unevenly coated.
3. according to the method described in claim 2, it is characterized in that, several parallel straight lines uniformly divide in the paper surface
Cloth.
4. according to the method described in claim 2, it is characterized in that, in several parallel straight lines between adjacent two straight lines
Distance is 0.8-1.2cm.
5. method described in any one of -4 according to claim 1, which is characterized in that the paper be temperature-sensitive print paper and/or
Release paper.
6. method described in any one of -4 according to claim 1, which is characterized in that the pen is pen and/or ball pen.
7. according to the method described in claim 6, it is characterized in that, the ball pen is selected from gel ink pen, oiliness ball pen, aqueous
At least one of ball pen and erasable ball pen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097237.0A CN108956456B (en) | 2018-09-20 | 2018-09-20 | Method for detecting paper surface coating uniformity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811097237.0A CN108956456B (en) | 2018-09-20 | 2018-09-20 | Method for detecting paper surface coating uniformity |
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| Publication Number | Publication Date |
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| CN108956456A true CN108956456A (en) | 2018-12-07 |
| CN108956456B CN108956456B (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811097237.0A Active CN108956456B (en) | 2018-09-20 | 2018-09-20 | Method for detecting paper surface coating uniformity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579479A (en) * | 2020-05-06 | 2020-08-25 | 广州速马实业有限公司 | Water-based precoating detection agent, detection pen and detection method for digital printing |
Citations (4)
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|---|---|---|---|---|
| WO1999051966A1 (en) * | 1998-04-07 | 1999-10-14 | S.D. Warren Services Company | Devices and methods for testing tack uniformity of a coating on a substrate |
| CN102042955A (en) * | 2009-10-10 | 2011-05-04 | 鞍钢股份有限公司 | Method for detecting surface evenness of steel plate coating |
| CN204286344U (en) * | 2014-12-18 | 2015-04-22 | 国家家具及室内环境质量监督检验中心 | Clipboard verifying attachment |
| CN107478525A (en) * | 2017-08-10 | 2017-12-15 | 常德金德新材料科技股份有限公司 | Paper quality detection method |
-
2018
- 2018-09-20 CN CN201811097237.0A patent/CN108956456B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999051966A1 (en) * | 1998-04-07 | 1999-10-14 | S.D. Warren Services Company | Devices and methods for testing tack uniformity of a coating on a substrate |
| CN102042955A (en) * | 2009-10-10 | 2011-05-04 | 鞍钢股份有限公司 | Method for detecting surface evenness of steel plate coating |
| CN204286344U (en) * | 2014-12-18 | 2015-04-22 | 国家家具及室内环境质量监督检验中心 | Clipboard verifying attachment |
| CN107478525A (en) * | 2017-08-10 | 2017-12-15 | 常德金德新材料科技股份有限公司 | Paper quality detection method |
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| 国家质量监督检验检疫总局: "《GB/T 460-2002》", 5 September 2002 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579479A (en) * | 2020-05-06 | 2020-08-25 | 广州速马实业有限公司 | Water-based precoating detection agent, detection pen and detection method for digital printing |
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| CN108956456B (en) | 2021-07-13 |
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