CN113791070A - Method for evaluating back coating quality of edge sealing band - Google Patents
Method for evaluating back coating quality of edge sealing band Download PDFInfo
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- CN113791070A CN113791070A CN202111065472.1A CN202111065472A CN113791070A CN 113791070 A CN113791070 A CN 113791070A CN 202111065472 A CN202111065472 A CN 202111065472A CN 113791070 A CN113791070 A CN 113791070A
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- 239000011248 coating agent Substances 0.000 title claims abstract description 108
- 238000000576 coating method Methods 0.000 title claims abstract description 108
- 238000007789 sealing Methods 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 45
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000005070 sampling Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000004140 cleaning Methods 0.000 claims abstract description 10
- 238000007689 inspection Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000009864 tensile test Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 description 12
- 229920000297 Rayon Polymers 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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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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Abstract
The application relates to a method for evaluating the back coating quality of a sealing side band. The method for evaluating the back coating quality of the edge sealing belt comprises the following steps of detecting the surface back coating amount of the edge sealing belt; the surface back coating amount of the inspection edge sealing band comprises the following steps: sampling, and drawing a straight line on the back coating surface of the sample by using a dyne pen; cleaning the drawn sample with ethanol; and observing the surface of the cleaned sample, wherein the existence of pen liquid residues is detected, and if the pen liquid residues exist, the detection result is qualified. The method for evaluating the back coating quality of the edge sealing band has the advantages of filling up the blank of the industry and providing a standardized back coating quality judgment method.
Description
Technical Field
The present invention relates to an evaluation method, and more particularly to a method for evaluating the quality of a back coating of a sealing tape.
Background
In order to ensure better bonding quality between the edge sealing belt and the section of the plate, the edge sealing belt used in the existing plate furniture is additionally provided with a layer of back coating, wherein the back coating is a layer of adhesive layer attached to the back surface of the edge sealing belt, and has the functions of maintaining or enhancing the bonding force between the edge sealing adhesive and the plate and playing a role of an intermediate bridge, so that the quality of the back coating directly influences the bonding effect. In the prior art, the state has no corresponding standards and technical requirements aiming at a back coating quality inspection method. The conventional judgment method in the industry carries out sensory evaluation through eye visual inspection or hand touch, and the evaluation method is subjective and easy to have errors. In addition, because the market share of the existing transparent color back glue coating is large, and the coating of the back glue coating is very thin, the existing judgment mode can not realize accurate judgment or even judgment for the situations.
Disclosure of Invention
Based on this, the present application aims to provide an edge sealing band back coating quality evaluation method, which has the advantages of filling up the industry blank and providing a standardized back coating quality judgment method.
One aspect of the application provides a method for evaluating the back coating quality of a sealed side belt, which comprises the steps of detecting the surface back coating amount of the sealed side belt;
the surface back coating amount of the inspection edge sealing band comprises the following steps:
sampling, and drawing a straight line on the back coating surface of the sample by using a dyne pen;
cleaning the drawn sample with ethanol;
and observing the surface of the cleaned sample, wherein the existence of pen liquid residues is detected, and if the pen liquid residues exist, the detection result is qualified.
According to the method for evaluating the back coating quality of the edge sealing band, a sample is drawn by a dyne pen with a dyne value of 30-40mN/m and is drawn on the back coating surface of the sample, and corresponding ink marks are formed after the dyne pen draws lines because the surface of the sample is coated with corresponding paint or glue solution; then cleaning the sample by using ethanol, wherein if the ink marks can be removed by using the ethanol, the back coating amount of the sample surface is insufficient; if the ink marks cannot be removed by the ethanol and the surface of the sample has the pen liquid residue, the back coating amount is qualified. The dyne pen is usually used for testing the surface tension of a non-adhesive material, but in the application, the application is changed, and the qualified condition of the back coating amount is tested by combining the use of ethanol, so that the testing method is simple and easy to complete, and the detection efficiency is improved.
Further, the step of checking the surface back coating amount of the edge sealing belt further comprises the following steps:
and observing the surface of the cleaned sample, wherein the existence of pen liquid residue is present, and if not, the test result is unqualified.
Further, the sampling comprises: the surface of the sample was wiped clean.
Further, after drawing a straight line on the back coating surface of the sample by using the dyne pen, the method further comprises the following steps: standing for 1-3 minutes.
Further, the sampling further comprises: the sampling locations were located at the front and end of each wrap, two sets were selected, and the samples were cut to a 100mm by 22mm format.
Further, the method also comprises the steps of checking the surface back coating effectiveness of the edge sealing belt;
the method for verifying the surface back coating effectiveness of the edge sealing band comprises the following steps:
when the retrieval result of the back coating amount on the surface of the sample is qualified, edge sealing is carried out on the plate by the sample;
carrying out a 90-degree peeling test on the edge-sealed plate by using a universal tensile testing machine;
and judging whether the stripping force value is more than or equal to 50N, if so, judging that the surface back coating effectiveness is qualified.
Further, after judging whether the stripping force value is larger than or equal to 50N, judging whether the viscose coated on the back of the surface of the sample after stripping is uniform, and if so, judging that the effectiveness of the surface back coating is qualified.
Further, the edge sealing of the sample to the plate material includes: and respectively carrying out edge sealing operation on the samples by an edge sealing machine, so that the samples are adhered to the plate in an edge sealing manner.
Further, sampling locations were located at the front and end of each rolled edge band, two sets were selected, and the samples were cut to a 400mm by 22mm format.
Further, after the sample is subjected to edge sealing on the plate material, the method further comprises the following steps: the finished sample was allowed to cool naturally in the room for 30 minutes.
For a better understanding and practice, the present application is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1(a) is a sample illustration of an exemplary test edge strip of the present application when the surface backcoating amount is acceptable;
FIG. 1(b) is a sample illustration of an exemplary test edge strip of the present application failing to have surface backcoating;
FIG. 2(a) is a graphical representation of a sample when the surface backcoating effectiveness of an exemplary test edge banding of the present application is acceptable;
FIG. 2(b) is a graphical representation of a sample when the surface backcoating effectiveness of an exemplary test edge banding of the present application is unacceptable;
FIG. 3 is a single force-deflection curve for verifying the effectiveness of surface backcoating of an edge banding in accordance with an exemplary embodiment of the present application;
FIG. 4 is a plurality of force-deflection curves for verifying the effectiveness of surface backcoating of an exemplary edge banding of the present application.
Detailed Description
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application. In the description of the present application, "a plurality" means two or more unless otherwise specified.
FIG. 1(a) is a sample illustration of an exemplary test edge strip of the present application when the surface backcoating amount is acceptable; FIG. 1(b) is a sample illustration of an exemplary test edge strip of the present application failing to have surface backcoating; FIG. 2(a) is a graphical representation of a sample when the surface backcoating effectiveness of an exemplary test edge banding of the present application is acceptable; FIG. 2(b) is a graphical representation of a sample when the surface backcoating effectiveness of an exemplary test edge banding of the present application is unacceptable; FIG. 3 is a single force-deflection curve for verifying the effectiveness of surface backcoating of an edge banding in accordance with an exemplary embodiment of the present application; FIG. 4 is a plurality of force-deflection curves for verifying the effectiveness of surface backcoating of an exemplary edge banding of the present application.
The method for evaluating the back coating quality of the edge sealing belt comprises the following steps of S10, checking the surface back coating amount of the edge sealing belt;
the surface back coating amount of the inspection edge sealing band comprises the following steps:
s11, sampling, and drawing a straight line on the back coating surface of the sample by using a dyne pen;
s13, cleaning the drawn sample by using ethanol;
and S14, observing the surface of the cleaned sample, wherein the existence of pen liquid residues is detected, and if the pen liquid residues exist, the detection result is qualified. The results of the sample tests of FIGS. 1(a) and 1(b) can be referred to.
According to the method for evaluating the back coating quality of the edge sealing band, a sample is drawn by a dyne pen with a dyne value of 30-40mN/m and is drawn on the back coating surface of the sample, and corresponding ink marks are formed after the dyne pen draws lines because the surface of the sample is coated with corresponding paint or glue solution; then cleaning the sample by using ethanol, wherein if the ink marks can be removed by using the ethanol, the back coating amount of the sample surface is insufficient; if the ink marks cannot be removed by the ethanol and the surface of the sample has the pen liquid residue, the back coating amount is qualified. The dyne pen is usually used for testing the surface tension of a non-adhesive material, but in the application, the application is changed, and the qualified condition of the back coating amount is tested by combining the use of ethanol, so that the testing method is simple and easy to complete, and the detection efficiency is improved.
In some preferred examples, a line is drawn with a dyne pen having a dyne value of 38 mN/m. And judging the back coating amount according to the force and handwriting of the dyne pen, wherein the back coating amount belongs to the optimal scheme.
In some preferred examples, the pressure is suitably increased when drawing a line with a dyne pen, and the length of the line is 50 mm.
In some preferred embodiments, the verifying the amount of surface backcoating of the edge banding further comprises the steps of: and S15, observing the surface of the cleaned sample, wherein the surface has pen liquid residue, and if the surface has pen liquid residue, the test result is unqualified.
In some preferred embodiments, the sampling comprises: the surface of the sample was wiped clean. The surface of the sample was cleaned by scrubbing and then the line was drawn.
In some preferred embodiments, the inspecting the surface back-coat amount of the edge banding further comprises: after drawing a straight line on the back coating surface of the sample by using the dyne pen, the method further comprises the following steps: s12, standing for 1-3 minutes. And the handwriting on the back coating surface can be dried by standing, and a stable state is achieved. In some preferred examples, the standing time is 1 minute.
In some preferred embodiments, the sampling further comprises: the sampling locations were located at the front and end of each wrap, two sets were selected, and the samples were cut to a 100mm by 22mm format.
In some preferred embodiments, the cleaning the drawn line sample with ethanol comprises: the surface of the drawn sample was cleaned using 98% ethanol and wiped dry with paper.
In some preferred embodiments, the method further comprises the steps of S20, checking the surface back coating effectiveness of the edge sealing belt;
the method for verifying the surface back coating effectiveness of the edge sealing band comprises the following steps:
s21, when the retrieval result of the back coating amount of the sample surface is qualified, sealing the edge of the plate by the sample;
s23, carrying out a 90-degree peeling test on the edge-sealed plate through a universal tensile testing machine;
and S24, judging whether the stripping force value is more than or equal to 50N, if so, judging that the effectiveness of surface back coating is qualified. The results of the sample tests of FIGS. 2(a) and 2(b) can be seen.
In some preferred embodiments, the verifying the effectiveness of the surface backcoating of the edgeband further comprises: and S25, judging whether the stripping force value is more than or equal to 50N, if not, determining that the effectiveness of surface back coating is unqualified.
In some preferred embodiments, the verifying the effectiveness of the surface backcoating of the edgeband further comprises: and after judging whether the stripping force value is more than or equal to 50N, the method also comprises the step of S26, judging whether the viscose coated on the back surface of the sample after stripping is uniform, and if so, judging that the effectiveness of the surface back coating is qualified.
In some preferred embodiments, the verifying the effectiveness of the surface backcoating of the edgeband further comprises: and after judging whether the stripping force value is more than or equal to 50N, the method also comprises the step of S27, judging whether the viscose coated on the back surface of the sample after stripping is uniform, and if not, judging that the effectiveness of the surface back coating is unqualified.
In some preferred embodiments, the edge sealing the sample to the plate material comprises: and respectively carrying out edge sealing operation on the samples by an edge sealing machine, so that the samples are adhered to the plate in an edge sealing manner.
In some preferred embodiments, sampling locations are located at the leading and trailing ends of each rolled edge strip, two sets are selected, and the samples are cut to a 400mm by 22mm format.
In some further examples, the sheet material to be edge sealed was 300mm 200mm 18mm in size, the sample of edge sealing tape was 400mm 22mm in size, and the excess portion of the sample was cut after edge sealing of the sample to the sheet material.
In some preferred embodiments, after the edge sealing is performed on the plate material by the sample, the method further comprises the following steps: s22, the prepared sample is naturally cooled in the room for 30 minutes.
In some preferred embodiments, the edge sealed panel is subjected to a 90 degree peel test using a universal tensile tester, and the peel interval selected when peeling is 2/3 degrees of the length of the panel, and the peel force values are averaged over the peel interval. For example, in one example, the length of the plate material is 300mm, 200mm of the peeling intervals of the corresponding samples are selected and are continuous intervals, and the average value is obtained according to the peeling force in the continuous intervals. When the average value of the peeling force is more than or equal to 50N, the surface back coating effectiveness is qualified. Also, in some further examples, it is desirable to combine peel force with the degree of uniformity of the surface backcoating to judge the effectiveness of the surface backcoating.
Referring to fig. 1-4, an exemplary method for evaluating the back coating quality of a sealing tape of the present application includes the steps of:
s30, checking the surface back coating amount of the edge sealing belt;
and S40, checking the surface back coating effectiveness of the edge sealing belt.
Wherein, the surface back coating amount of the inspection edge sealing belt comprises the following steps:
s31, sampling, and drawing a straight line on the back coating surface of the sample by using a dyne pen;
the sampling comprises the following steps: wiping the surface of the sample;
the sampling further comprises: sampling positions are positioned at the front end and the tail end of each edge sealing belt, two groups of sampling positions are selected respectively, and the samples are cut into the specification of 100mm x 22 mm;
s32, standing for 1-3 minutes;
s33, cleaning the drawn sample by using ethanol;
s34, observing the surface of the cleaned sample, wherein the existence of pen liquid residue is detected, and if the pen liquid residue exists, the detection result of the back coating amount of the surface is qualified; if not, the inspection result of the surface back coating amount is unqualified.
In addition, the method for verifying the surface back coating effectiveness of the edge sealing strip comprises the following steps:
s41, sampling positions are located at the front end and the tail end of each edge rolling belt, two groups of the edge rolling belts are selected respectively, and the samples are cut into a specification of 400mm x 22 mm;
s42, when the retrieval result of the back coating amount of the sample surface is qualified, sealing the edge of the plate by the sample;
the edge sealing of the sample to the plate material comprises: respectively carrying out edge sealing operation on the samples by using an edge sealing machine, so that the samples are adhered to the plate in an edge sealing manner;
s43, naturally cooling the prepared sample in a room for 30 minutes;
s44, carrying out a 90-degree peeling test on the edge-sealed plate through a universal tensile testing machine;
s45, judging whether the stripping force value is more than or equal to 50N, if so, judging that the surface back coating effectiveness is qualified; if not, the effectiveness of surface back coating is unqualified;
s46, judging whether the viscose coated on the back of the surface of the sample after stripping is uniform or not, and if so, judging that the effectiveness of the surface back coating is qualified; if not, the effectiveness of surface back coating is unqualified.
As shown in fig. 3 and 4, the abscissa indicates the amount of deformation, that is, the amount of peeling of the sample, and the 0-th scale line of the abscissa indicates the peeling start end of the sample, which may be one end of the sample; in the present application, the total length of the peeled portion of the sample was 300mm, and 200mm of the total length was selected as the peeled portion. The starting position of the peeling section may be the end start or the middle start. In the example shown in the figure, the peeling section is the 2 nd section, the starting position of which is shown in the figure, and the length of the peeling section in this example is 120 mm.
As shown in fig. 3 and 4, the ordinate represents the instantaneous value of the peeling force at the time of peeling, and the instantaneous value is measured by a universal tensile tester.
The method for evaluating the back coating quality of the edge sealing band fills up the blank in the current national standard, changes the current method for subjectively judging the back coating quality in the industry, and has certain advancement and convenience compared with the current sense of visual or hand touch. The method for evaluating the back coating quality of the edge sealing band can evaluate the back coating quality of the edge sealing band in an all-around manner. Firstly, checking the surface back coating amount of the edge sealing belt: and (3) using a 38 model dyne pen to paint the back coating surface, standing for a period of time, repeatedly cleaning with ethanol, and observing whether the surface can be cleaned. The inspection principle follows that after the edge sealing belt is smeared and back coated, the surface hydrophilicity and the wettability can be changed, fine air holes exist on the surface of back coated glue, pen liquid can permeate into the back coated glue at a certain concentration, the back coated glue is difficult to clean, the pen liquid is remained, and the back coated glue is qualified. And if the edge sealing belt is not coated with the back coating or the coating amount is small, the surface is smooth in the same proportion, the cleaning is easy, no pen liquid is left, and the back coating glue is unqualified. And secondly, checking the surface back coating effectiveness of the edge sealing tape, simulating the practical use condition, carrying out an edge sealing stripping test on a sample of the edge sealing tape with the back coating amount qualified after the edge sealing of the board, detecting the adhesion value and observing the back adhesive edge sealing glue condition, wherein the better the fusion property of the back coating and the edge sealing glue, the stronger the adhesion force and the more the back adhesive after the edge sealing. Through two steps of back coating amount inspection and back coating effectiveness inspection, the quality of the edge sealing can be evaluated in all directions, the practicability is high, the universality is strong, the implementation is easy, a new evaluation standard can be formed, and the standardization can be realized.
In addition, whether the back coating amount is qualified or not is obtained by checking the back coating amount of the surface of the edge sealing belt; the surface back coating effectiveness of the edge sealing belt is further checked, and whether the back coating glue solution is effective or not is further obtained under the condition that the back coating amount is qualified, so that the method has a progressive effect, comprehensive judgment can be performed, and the back coating quality can be comprehensively and completely judged.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.
Claims (10)
1. A method for evaluating the back coating quality of a sealed side band is characterized by comprising the steps of detecting the surface back coating amount of the sealed side band;
the surface back coating amount of the inspection edge sealing band comprises the following steps:
sampling, and drawing a straight line on the back coating surface of the sample by using a dyne pen;
cleaning the drawn sample with ethanol;
and observing the surface of the cleaned sample, wherein the existence of pen liquid residues is detected, and if the pen liquid residues exist, the detection result is qualified.
2. The method for evaluating the quality of the back coating of the edge sealing tape according to claim 1, wherein the step of checking the surface back coating amount of the edge sealing tape further comprises the steps of:
and observing the surface of the cleaned sample, wherein the existence of pen liquid residue is present, and if not, the test result is unqualified.
3. The method for evaluating the quality of the back coating of the edge sealing tape according to claim 2, wherein the sampling comprises: the surface of the sample was wiped clean.
4. The method for evaluating the coating quality of the back of the edge sealing tape according to claim 3, wherein after drawing a straight line on the back coating surface of the sample with a dyne pen, the method further comprises the steps of: standing for 1-3 minutes.
5. The method of evaluating the quality of the backcoating of the edge banding according to claim 4, wherein said sampling further comprises: the sampling locations were located at the front and end of each wrap, two sets were selected, and the samples were cut to a 100mm by 22mm format.
6. The method for evaluating the quality of the back coating of the edge sealing tape according to any one of claims 1 to 4, further comprising the steps of checking the effectiveness of the surface back coating of the edge sealing tape;
the method for verifying the surface back coating effectiveness of the edge sealing band comprises the following steps:
when the retrieval result of the back coating amount on the surface of the sample is qualified, edge sealing is carried out on the plate by the sample;
carrying out a 90-degree peeling test on the edge-sealed plate by using a universal tensile testing machine;
and judging whether the stripping force value is more than or equal to 50N, if so, judging that the surface back coating effectiveness is qualified.
7. The method for evaluating the back coating quality of the edge sealing tape according to claim 6, wherein after judging whether the peeling force value is more than or equal to 50N, the method further comprises judging whether the adhesive on the back coating of the surface of the sample after peeling is uniform, and if so, the effectiveness of the back coating of the surface is qualified.
8. The method for evaluating the back coating quality of the edge sealing band according to claim 7, wherein the edge sealing of the sample on the plate material comprises the following steps: and respectively carrying out edge sealing operation on the samples by an edge sealing machine, so that the samples are adhered to the plate in an edge sealing manner.
9. The method of claim 8, wherein two sampling locations are located at the leading and trailing ends of each wrap, and the samples are cut to a 400mm by 22mm gauge.
10. The method for evaluating the back coating quality of the edge sealing band according to claim 8, wherein after the sample is subjected to edge sealing on the plate material, the method further comprises the following steps: the finished sample was allowed to cool naturally in the room for 30 minutes.
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