CN114263319A - Wall poster with adhesive surface micronized arrangement non-setting adhesive - Google Patents
Wall poster with adhesive surface micronized arrangement non-setting adhesive Download PDFInfo
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- CN114263319A CN114263319A CN202210067880.9A CN202210067880A CN114263319A CN 114263319 A CN114263319 A CN 114263319A CN 202210067880 A CN202210067880 A CN 202210067880A CN 114263319 A CN114263319 A CN 114263319A
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- 230000001070 adhesive effect Effects 0.000 title claims abstract description 180
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- 238000000576 coating method Methods 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 9
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- 239000000499 gel Substances 0.000 description 3
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Abstract
The invention discloses a wall sticker with adhesive surface micronizing arranged non-setting adhesive, which relates to the technical field of wall stickers and is used for solving the problem that a wall skin is easily torn off and a wall body is damaged when a wall sticker substrate is lifted off1The inward pulling force of the wall skin by the wall base is sigma F2Satisfies Σ F1<∑F2. By regulating and controlling the following three aspects: (1) setting the rubber column into a section with a small enough area and a larger circumference area than the section as much as possible; (2) the wall bases under the single glue columns are connected in the pull-back force range S2; (3) the viscosity of the adhesive sticker is improved; realizes the maximum adhesive force of the wall sticker of the whole adhesive sticker, but does not damage the wall skin after being uncovered, namely, the spear shield bodies with strong adhesive property and wall skin damage propertyA balance is achieved between them.
Description
Technical Field
The invention relates to the technical field of wall stickers, in particular to a wall sticker with adhesive surfaces in micronized arrangement.
Background
The wall sticker is a designed and manufactured ready-made self-adhesive sticker, wall sticker picture or wall sticker board, and only needs to be manually pasted, so that the construction method is convenient and fast. The atmosphere of the space can be changed by local spot installation, the overall decoration style is matched, the life interest of the master is revealed, a family is endowed with new life, and a new home decoration trend is led. The wall can also be attached to teaching, conference discussion, or personal and family notes, such as a whiteboard, which is a writable surface made of white or black material, which functions similarly to a blackboard and is a rewritable writing tool.
The existing wall sticker generally comprises a base body and an adhesive glue layer coated on the base body, wherein glue is completely filled between the base body and a wall surface, when the base body is lifted from the wall surface, a wall skin is influenced by two forces, namely a force sigma F that the wall skin is pulled outwards by non-setting glue1One is the force ∑ F with which the skin is pulled inward by the wall base2When the adhesive sticker is uncovered (moved) in the direction away from the wall surface: if sigma F1>∑F2The wall skin is separated from the wall base, the non-setting adhesive is not separated from the wall skin, and the wall skin is taken up when the non-setting adhesive is uncovered. When the existing wall sticker base body is torn off, the wall skin is very easy to tear off from the wall base, and the wall body is damaged. For solving the problem of tearing the wall skin in the prior art, in order to make the wall skin difficult to tear when tearing, it has to adopt the glue that the adhesion is littleer, and the base member passes through the glue that the adhesion is littleer to be attached on the wall promptly, but because the adhesion of glue is littleer, the effort of base member and wall is little, easily drops, influences the normal use of base member.
In view of this, this application provides a wall subsides with adhesive surface micronization arranges non-setting adhesive.
Disclosure of Invention
The invention aims to: in order to solve the wall subsides base member and tear the wall skin easily when being uncovered and lead to the fact the problem of damage to the wall body, the application provides a wall subsides with adhesive surface micronizes and arranges the non-setting adhesive, through setting the glue film to the independent small gluey post one by one, the girth area ratio CS of gluey post in the increase base member, the injury that leads to the fact the wall skin when reducing to tear, and reduce to tear the damage that leads to the fact the wall skin under the circumstances that the realization has sufficient adhesion, be promptly at strong adhesion, realize the balance between the two spear bodies of wall skin injury nature.
The invention specifically adopts the following technical scheme for realizing the purpose:
a wall sticker with adhesive surface micronized arrangement non-setting adhesive comprises a substrate, an adhesive layer coated on the substrate, and an adhesive layerThe adhesive is divided into a plurality of independent adhesive columns by the grooves, and the wall skin is pulled outwards by the wall sticker with adhesive surface micronized arrangement adhesive sticker with sigma F1The inward pulling force of the wall skin by the wall base is sigma F2Satisfies Σ F1<∑F2。
Preferably, the ranges of wall foundation pull back forces S2 under the individual glue columns meet or intersect, wherein S2The area of the wall skin corresponding to the lower part of the rubber column under the action of the inward pulling force of the wall base.
Preferably, the cross section of the glue column is parallelogram (which includes rectangle, diamond, square, etc.), circle, snowflake, cross star or pentagram.
Preferably, the parallelogram of the cross section of the glue column comprises a square, a rectangle or a rhombus, and when the cross section of the glue column is square: in the first case: when i is2≥i1When D is1Is any value greater than 0; in the second case: when i is2＜i1When D is1≦DTSaid D isTIs 2 delta i2 1/2/(i1 1/2-i2 1/2) Wherein i1Is the bonding strength of the unit area adhesive sticker to the wall skin, i2The bonding strength of the wall base to the wall skin in units area, D1The length of the side of the square rubber column is DT which is the maximum value of the length of the side of the square rubber column.
Preferably, said DTBy the equation y ═ i2-i1)D1 2+4i2δD1+4i2δ2Solving, wherein y is a resultant function of the pull-back force and the lifting force; i.e. i1The bonding strength of the unit area adhesive sticker to the wall skin is shown; i.e. i2The bonding strength of the wall base to the wall skin is the unit area; d1The side length of the square rubber column; d2To side length of D1The width of the wall skin under the rubber column is corresponding to the action area of the wall base inward drawing force; delta is the flaring distance, delta ═ D2-D1) 2; DT is the maximum value of the side length of the square rubber column.
Preferably, the unit surfaceAdhesive strength i of adhesive sticker to wall skin1Is 1.8-2.2N/cm2。
Preferably, the wall sticker is a wall sticker, a wall poster, or a wall panel.
Preferably, when the wall flitch is the white board subsides, the base member is including overlapping adsorption layer, white board bulk layer and the PET polyester film that sets up on the adhesion glue film in proper order, and the adsorption layer is the iron powder glue film. The iron powder glue layer can be formed by coating a mixture of 50-90 wt% of iron powder and glue.
The invention has the following beneficial effects:
1. the method comprises the steps that criss-cross grooves are formed in an adhesive layer of a wall sticker, the adhesive layer is divided into a plurality of independent adhesive columns by the grooves, namely the adhesive layer is divided into tiny adhesive columns by the grooves, the adhesive limit load of particle arrangement of the adhesive layer is adjusted, the peeling performance (without damaging the wall) is easy, and the process of peeling the adhesive layer is equal to the process of continuously peeling off small adhesive columns; the maximum adhesive force of the adhesive sticker to the wall skin is ensured by adopting the S2 intersection when the wall skin is subjected to the maximum drawing force; the area ratio of the circumference of the section of a single glue column is improved, and the easy stripping performance of the single glue column is improved; and the following three aspects are regulated and controlled: (1) setting the rubber column into a section with the area as small as possible and the area of the circumference as large as possible; (2) the wall bases under the single glue columns are connected in the pull-back force range S2; (3) the viscosity of the adhesive sticker (namely the adhesive force of the unit contact area of the adhesive sticker to the wall skin) is improved; the wall sticker realizes the maximum adhesive force of the wall sticker as much as possible, but does not damage the wall skin after being uncovered, namely, the balance between the two spear shield bodies with strong adhesive property and wall skin damage is realized.
2. Because the base body is usually long, bubbles and hollows are easily generated during pasting; according to the invention, the criss-cross grooves are formed in the adhesive layer, so that bubbles and redundant air in the hollows can be discharged outwards through the grooves, and the adhered matrix is not easy to generate bubbles and hollows and the use effect of the matrix is not influenced.
3. When the wall-mounted board is a white board sticker, the adsorption layer of the base body is doped with the iron powder, so that the board body has the property of iron, and can be used for adsorbing some writing auxiliary devices (writing pens, erasers, marks and the like) on the white board.
4. The wall sticker of the invention can generate great economic benefit. The wall sticker can realize lower wall damage performance without replacing more expensive glue (such as silica gel, the price of which is 2-3 times more expensive than that of the adhesive sticker with the conventional formula), and is applied to the fields of adhesive sticker wallpaper, soft white boards and the like, so that the generated economic effect is huge. Calculated according to the cost of 2 yuan of glue added per square meter, 2400 ten thousand square meters of adhesive sticker wallpaper and 400 ten thousand square meters of soft white boards are bought in the Taobao in 1 year, if the wall sticker which can realize the wall performance not damaged is changed, 5600 ten thousand yuan can be saved each year.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the adhesive layer of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at I;
FIG. 4 is a schematic diagram of air intrusion squares from a top view of circular, square and parallelogram glue columns;
FIG. 5 is a schematic diagram of a square rubber column skewed parallelogram rubber column in an engineering application of the present invention;
FIG. 6 is a graph of the wall skin force analysis of the present invention;
FIG. 7 is a schematic diagram showing that the adhesive layer of the wall sticker of the present invention is equivalent to a plurality of tiny adhesive posts which are successively uncovered;
FIG. 8 is a schematic view showing the relationship between the front and rear glue pillars and the wall skin after the wall skin is lifted;
fig. 9 is a schematic position diagram of the range of the retractive force S2 according to the present invention;
FIG. 10 is a schematic diagram of the arrangement of the circular, square and parallelogram rubber columns when the pull-back force ranges S2 are tangent according to the present invention;
FIG. 11 is a force analysis diagram of the wall skin when the parallelogram glue column of the invention is converted into a square glue column with equal area;
FIG. 12 is a model diagram of a calculation of a decrease in the adhesion of the non-setting adhesive to the wall skin;
FIG. 13 is a schematic structural view of a wall sticker board according to the present invention;
FIG. 14 is an enlarged view of the inventive wall sticker with an adhesive surface and micronized arrangement of the adhesive sticker.
Wherein the reference numerals are: 1-adhesive glue layer, 2-substrate, 3-wall skin, 4-wall base, 11-groove, 12-glue column, 21-adsorption layer, 22-white board main body layer and 23-PET polyester film.
Detailed Description
The invention has two foundations in normal use: firstly, the wall is applied to a qualified wall surface rather than an inferior wall surface, namely the wall is constructed and painted according to the national standard, and the adhesive force (sigma F) between the wall skin and the wall base2) The wall is guaranteed, so that the ash can not fall off once the wall is touched, and the wall skin can not be taken up after the wall is lightly stuck and torn off; and secondly, the product with the adhesive sticker is stuck on the wall, and the medium of the product cannot be separated from the adhesive sticker when the product is taken off, namely the adhesive force of the adhesive sticker to the medium is large enough. By combining the two basic limiting conditions, the invention solves the problems that the adhesive sticker is strongly adhered to a qualified wall surface and does not bring up a wall skin when being lifted. To realize that the whole non-setting adhesive wall sticker has the maximum adhesive force and does not damage the wall skin after being uncovered, the following three aspects need to be regulated and controlled: (1) setting the rubber column to be a section as small as possible and having a perimeter area ratio (C/S) as large as possible; (2) the ranges of wall foundation pull-back force S2 under the individual glue columns intersect; (3) the viscosity of the adhesive sticker (namely the adhesive force of the unit contact area of the adhesive sticker to the wall skin) is improved; the reason is as follows:
1. key to perimeter area ratio C/S to promote easy peelability
The easy-to-peel finger is taken off more quickly and lightly on the basis of not taking off the wall skin. The essence of the adhesive sticker peeling off from the wall surface is that outside air invades between the adhesive sticker and the bonding surface of the wall surface inwards, and the contact between the adhesive sticker and the wall surface is thoroughly cut off. Therefore, the more easily the outside air enters the adhesive surface inwards, the more easily the adhesive sticker is peeled off from the wall surface; the more difficult the outside air invades the bonding surface inwards, the more difficult the non-setting adhesive is peeled off from the wall surface.
Fig. 4 is a schematic diagram of air intrusion squares in a top view of circular, square and parallelogram-shaped adhesive columns, that is, an inward intrusion of external air from the perimeter of the adhesive surface (the arrow indicates the air intrusion direction).
How to measure the difficulty of external air intruding into the adhesive surface of an isolated adhesive sticker column? As can be seen from a close examination of fig. 4, the perimeter C of the bonding surface is the location of the external air penetration. The longer the circumference, the more the outside air penetrates into the adhesive surface per unit time. The area S of the bonding surface is the area to be separated by air, i.e., the amount of work to be invaded by air.
The perimeter area ratio (C/S), which is the "speed of air intrusion" divided by the "workload to be air intrusion", directly determines the easy peelability of the isolated adhesive pillar, with a higher value for easier peelability and a lower value for harder peelability (the bond strength i of the adhesive to the wall skin1When not changed).
1.1 increase the perimeter to area ratio of the columns-reduction of equal proportion, narrow and narrow patterns and fractal
From the plane geometry, it is known that the perimeter to area ratio of similar figures is inversely proportional to the side length of the figure, and the larger the figure, the smaller the perimeter to area ratio, and the smaller the figure, the larger the perimeter to area ratio. If a whole piece of non-setting adhesive is decomposed into a set of non-setting adhesive columns which are independent at intervals, the smaller the non-setting adhesive column is, the larger the area ratio of the periphery of the non-setting adhesive column is, and the easier the non-setting adhesive column is to be peeled off.
It can also be seen from the plane geometry that the pattern of equal area, the closer to the pattern of equal sides, the shorter the perimeter, the smaller the perimeter to area ratio (circle is the smallest perimeter to area ratio in the pattern of equal area). Then, in reverse application, the more the cross-section of the glue column is designed to be flat and long, the larger the total perimeter to area ratio, and the easier it is to peel. From the fractal geometry, it can be known that, in the case of keeping the area unchanged, the perimeter can be greatly increased by providing various protrusions on the sidelines, so as to greatly increase the perimeter-to-area ratio (for example, the perimeter-to-area ratio of the snowflake pattern is extremely large). However, this method of increasing the area ratio of the circumference requires a special elaborate press roll, which is expensive.
1.2 engineering applications
The square rubber column is converted into an oblique parallelogram in engineering application, so that the stripping is easier. The square rubber column can be changed into a rectangular rubber column with equal area to improve the perimeter area ratio, and then the rectangular rubber column is changed into a parallelogram to further improve the perimeter area ratio.
The reference processing method is as follows: the method comprises the steps of firstly calculating the threshold side length DT of a square rubber column without damaging a wall, vertically arranging warps and wefts on a compression roller, then keeping the wefts still, rotating the warps by taking two adjacent focuses of the square as circle centers to obtain new warps forming an included angle theta with the original warps, wherein the area of a parallelogram formed by the new warps and the original wefts is equal to that of the original square (equal in height and width and equal in area), but the ratio of the circumference to the area is increased along with the increase of theta (as shown in figure 5).
2. Calculation process of particle size of square gel column
2.1 mechanical analysis
When the wall sticker adhered to the wall is removed, whether the wall is damaged (the wall skin is taken up) or not needs to analyze the stress condition of the wall skin. When the wall sticker is taken off, the wall skin is influenced by two forces (as shown in figure 6), namely sigma F1One is the force ∑ F with which the skin is pulled inward by the wall base2When the adhesive sticker moves away from the wall surface (uncovering):
if sigma F1<∑F2The pressure-sensitive adhesive is separated from the wall skin, the wall skin is not separated from the wall base, and the wall skin is not damaged when the pressure-sensitive adhesive is uncovered.
If sigma F1>∑F2The wall skin is separated from the wall base, the adhesive sticker is not separated from the wall skin, and the adhesive sticker is uncovered to take up the wall skin.
2.2 the process of lifting the non-setting adhesive wall sticker is 'differential lifting'
When the wall sticker is removed, the force is not uniformly applied to the whole sticking surface, and the whole sticking surface is not instantly removed at a time. The lifting force is concentrated at a point where the lifting is first performed and then at points around the point where the lifting is performed successively. Whether the strip is carried out by one hand or two hands, the strip is a 'point to be successively taken off' whether a soft material or a rigid material (for example, a board stuck on a wall by adhesive sticker and slightly deformed by the rigid material under the action of force) is taken off. Because each point is lifted off with a slight timing difference, we refer to this lifting off process as "differential lifting off".
Therefore, the process of lifting up the tiny adhesive columns in succession is equivalent to the process of lifting up the adhesive sticker (as shown in fig. 7). The process of 'differential uncovering' is analyzed to find that if the adhesive sticker surface is regarded as the combination of a plurality of tiny closely-connected adhesive sticker columns (the size of gaps among the adhesive sticker columns approaches to 0), the whole process can be regarded as the process of successively uncovering the tiny adhesive sticker columns. Therefore, the problem that the non-setting adhesive surface is uncovered without damaging the wall skin is equivalent to the problem that the independent micro adhesive columns are uncovered without damaging the wall skin.
2.3 the area of the wall skin under the isolated rubber column subjected to the back drag force is larger than the area of the external uncovering force
When the single glue column is slowly lifted, the outer end of one side of the contact surface is lifted firstly, and then other parts of the contact surface are lifted, but if the glue column is small enough, the contact surface of the glue column can be considered to be lifted together (the same idea as that of replacing the slope line with a small enough vertical line and a small enough horizontal line in the calculus, and the differentiation idea). Then the force of a single isolated glue column against the skin is analyzed as follows: f1Is contact force, and the stress range is the contact surface S of the rubber column and the wall skin1The wall skin is pulled outwards. F2Is also contact force with stress range S1S with one turn enlarged outwards2The wall skin is pulled inwards in the surface and direction.
Why the range of the drag force S2Specific uncovering force range S1One large turn? As shown in FIG. 8, since the outside of the isolated glue column is air, the material stress and friction are 0, the peeling force range S is1Will not expand outward. But the wall skin contacted by the rubber column is tightly connected with the wall skin, the material stress and the friction force are not negligible, and when S is used1When the large and small wall skins are pulled outwards, the wall skins which are expanded outwards at the periphery generate counter force to the outward uncovering movement (the counter force is generated by material stress and friction force). What we often say is that the phenomenon is typically represented by 'extracting the radish with mud', the pit generated by extracting one radish is necessarily larger than the diameter of the radish, and the soil around the radish is extracted and loosened.
2.4 maximum range wall base pull-back force one of the keys to improving the stability of the adhered wall skin
S2The range wall foundation pull-back force is the maximum pull-back force capable of resisting the single isolated glue column uncovering force, S2Is to be compared with S1The amount of external expansion is determined by the wall material and the quality, can be determined according to experimental data, and is a fixed value for a uniform and stable wall surface. In conclusion, important conclusions can be inferred: the adhesive stickers with the same area are adhered to the wall skin, if the whole adhesive sticker is split into a plurality of small adhesive posts which are independently spaced, the total contact area of all the small adhesive posts and the wall skin is not changed, all the small adhesive posts pull the wall skin outwards to form a resultant sigma F1Remain unchanged. But the wall skin adhered under each independent glue column obtains larger range of the pulling-back force, and the wall foundation pulling-back force sigma F obtained by the adhered total wall skin2The wall skin is not easy to be lifted.
As can be seen from FIG. 9, the range S of the retractive force2The splice is the densest arrangement of glue columns that maintains the maximum pull back force. The degree of compact arrangement of the glue columns determines the bonding strength of the glue column aggregate in a unit range. The adhesive sticker can improve the overall viscosity of the adhesive sticker by compactly arranging the adhesive studs while obtaining the maximum wall foundation dragging force. Derived from the geometric arrangement, when S2When the areas are connected, the glue columns can be arranged compactly when the back drag force of the wall base is kept to be maximum, and when S is connected2When crossing, although the rubber columns are arranged more compactly, the wall base pull-back force range loses an intersection area when S2The wall base pull back range is kept at a maximum value but the packing density is reduced when the wall base is separated (see fig. 9 in detail).
The following figures demonstrate three cases of circular and square gel column arrangements (see fig. 10): between a plurality of adjoining circles (circle S)1) The adhesive sticker has a large number of gaps, the overall bonding surface of the adhesive sticker and the wall skin is reduced, the total range of the drag force applied to the wall skin is also reduced, and the load bearing capacity of the adhesive sticker is reduced. The parallelogram glue columns are chosen to maintain overall tack better than the circular glue columns.
2.5 accurate calculation of particle size without damaging the wall
Embossing is carried out on the non-setting adhesive surface, the flat non-setting adhesive surface is pressed into a plurality of independent spaced adhesive columns, and the wall skin below each adhesive column is gathered to the maximum range of the dragging force, so that the damage to the wall skin when the wall skin is lifted is greatly reduced.
The most convenient way of embossing is embossing in the warp and weft directions to extrude square (parallelogram) rubber columns at independent intervals. The denser the warp and weft embossing is arranged, the larger the area ratio of the circumference of each rubber column is, and the wall is not damaged.
The side length of the independent square rubber column is as small as a threshold value, and the rubber column is not provided with a wall skin when being lifted. As in fig. 11, we calculate with a square gel column and illustrate some parameters:
S1is the area of the square rubber column, D1Is the side length of a square rubber column, sigma F1The force of pulling the wall skin outwards when the wall is lifted;
S2therefore, the area of the wall skin under the action of the inward pulling force of the wall base under the rubber column is D2To side length of D1The width of the wall skin under the rubber column corresponding to the action area of the inward pulling force of the wall base, sigma F2The back drag force of the wall foundation to the wall skin is obtained;
i1the adhesive strength of the adhesive sticker per unit area to the wall skin is larger than 0 and can be measured by experiments;
i2the bonding strength of the wall base to the wall skin is unit area and is greater than 0, and can be measured by experiments;
δ＝(D2-D1) The external expansion distance is represented by/2 and is greater than 0, and can be measured experimentally;
therefore D2＝D1+2δ；
∑F1＝S1i1＝D1 2i1；
∑F2＝S2i2＝D2 2i2；
Analyzing the stress of the wall skin under the single glue column to make a resultant force function y by reducing the lifting force with the drawing force, wherein y is ═ Sigma F2-∑F1＝D2 2i2-D1 2i1＝(D1+2δ)2i2-D1 2i1；
It is worked up to relate to D1Is (i) a quadratic function (parabolic function) y ═ i2-i1)D1 2+4i2δD1+4i2δ2；
The vertex abscissa of the parabola is 2 delta i2/(i1-i2)；
The vertex ordinate of the parabola is (3 i)2 2+i1i2)δ2/(i1-i2)；
The opening direction of the parabola is composed of (i)2-i1) Determining a positive value and a negative value;
solving this quadratic function finds i1、i2δ are both positive numbers, only (i)2-i1) Both positive and negative are not to be considered separately:
1) when i is2-i10, i2＝i1Time of flight
y＝4i2δD1+4i2δ2＞0；
The resultant force y is always pulled inwards, and the wall skin can never be lifted by the adhesive sticker. The physical meaning is that when the adhesive strength of the adhesive sticker to the wall skin is equal to the adhesive strength of the wall base to the wall skin, the wall skin cannot be pulled up by any D1 value, namely any parallelogram adhesive column.
2) When i is2-i1> 0, i2＞i1Time of flight
The opening of the parabola is upward,
the vertex abscissa of the parabola is 2 delta i2/(i1-i2)＜0；
The vertex ordinate of the parabola is (3 i)2 2+i1i2)δ2/(i1-i2)＜0；
The vertex must be located in the third quadrant;
and when D is1When 0, y is 4i2δ2＞0；
Because D1If y is more than 0, the resultant force y is always pulled inwards at any time, and the wall skin can never be lifted by the adhesive sticker. Its physical meaning isWhen the adhesive strength of the dry glue to the wall skin is smaller than that of the wall base to the wall skin, the wall skin cannot be pulled up by any D1 value, namely any size of parallelogram adhesive sticker column.
3) When i is2-i1< 0, i.e. i2＜i1Time of flight
The opening of the parabola is downward,
the vertex abscissa of the parabola is 2 delta i2/(i1-i2)＞0；
The vertex ordinate of the parabola is (3 i)2 2+i1i2)δ2/(i1-i2)＞0；
The vertex must be located in the first quadrant;
and when D is1When 0, y is 4i2δ2＞0；
When y is 0, there is a positive number DT，
When D is present1＜DTWhen y is positive, the wall skin cannot be lifted;
when D is present1＞DTWhen y is negative, the wall skin can be lifted;
solving the formula to obtain two D according to the parabolic rootTValue DT1＝2(i2-i1 1/2i2 1/2)δ/(i1-i2)＜0；
DT2＝2(i2+i1 1/2i2 1/2)δ/(i1-i2) Is greater than 0; truncating negative values and retaining positive values to obtain
DT＝2(i2+i1 1/2i2 1/2)δ/(i1-i2)；
DT is the maximum value of the side length of the square rubber column; when the side length is less than DT, slowly lifting the non-setting adhesive can not bring up the wall skin, and when the side length is more than DT, slowly lifting the non-setting adhesive can also bring up the wall skin. Can measure i through experiments1、i2Delta, then the formula can be used for solving DT。
In the real usage scenario, i2And delta is determined by the wall surfaceOn a wall surface meeting the national quality standard, the two values should be within a certain range, and the average value can be calculated by statistics and is regarded as a constant value. Then the only variable in the DT function is i1I.e. produced by different glue viscosities1The values are different. Because i is1＝(i1 1/2)2，i2＝(i2 1/2)2And has a mathematical formula a2-b2As (a + b) (a-b), we are for DTThe same factor i is provided by the molecule2 1/2And after the binary is expanded according to a formula, the following processes are obtained:
DT＝2δi2 1/2(i2 1/2+i1 1/2)/(i1-i2)
＝2δi2 1/2(i2 1/2+i1 1/2)/[(i1 1/2+i2 1/2)(i1 1/2-i2 1/2)]
＝2δi2 1/2/(i1 1/2-i2 1/2)
so DT＝2δi2 1/2/(i1 1/2-i2 1/2)
It is clear that D isTWith a unique variable i1Increasing and decreasing, the physical meaning is: the larger the viscosity of the glue is, the more the non-setting adhesive surface needs to be divided into smaller independent glue columns to be uncovered without a wall skin. That is, the wall performance can be prevented from being damaged by dividing finer glue columns under the conditions that the viscosity (formula) of the glue is not changed and the cost of the glue is not increased.
The solving process and formula of the square rubber column without damaging the wall are disclosed, and rubber columns in other forms such as circle, rectangle and parallelogram can be deduced in the same way. Only other geometric figures need more parameter description, and the patent does not derive the solution one by one. Although one circle can be defined, a large number of gaps are formed among a plurality of connected circles, the contact area of the adhesive sticker and the wall skin is reduced, the integral load bearing capacity of the adhesive sticker is lost, and therefore the adhesive sticker is rarely used in engineering.
3. The method realizes the calculation of the reduction value of the adhesive force of the adhesive sticker to the wall skin after the wall is not damaged
The wall damage-free performance is realized, and the wall foundation drag force ranges S2 corresponding to each square rubber column are intersected at the moment. The method is equivalent to the method for reducing the adhesive sticker in the original S2 range to the adhesive sticker in the square range with the side length of D (D < DT).
As shown in fig. 12, the ratio of the peeling force of the adhesive sticker with the square range of the side length DT to the peeling force of the adhesive sticker with the square range of the side length S2 to the peeling force of the adhesive sticker with the square range of the side length DT to the peeling force of the wall skin is set to be P, and it is obvious that P is the area ratio of the two ranges.
P＝D2/(D+2δ)2
＝[D/(D+2δ)]2；
When D ═ DT＝2δi2 1/2/(i1 1/2-i2 1/2) Then, the following is obtained: pDT＝(i2/i1)2；
Since i2 < i1, PDTLess than 1; the physical meaning is that after the whole piece of non-setting adhesive is divided into DT side length square adhesive column sets to realize the wall performance not to be damaged, the total adhesive force of the non-setting adhesive to the wall skin is reduced to the original value (i)2/i1)2。
Through the stress analysis, the process that the adhesive sticker wall sticker is lifted up is equal to the process that a small-particle adhesive sticker column is lifted up successively; s2 connection is to ensure the maximum adhesive force of the adhesive sticker to the wall skin when the wall skin is subjected to the maximum drawing force; the area ratio of the circumference of the cross section of the single glue column is improved, and the easy stripping performance of the single glue column can be improved. To realize the wall sticker of the whole adhesive sticker has the maximum adhesive force and can not damage the wall skin after being uncovered, the following three dimensions need to be controlled: (1) setting the rubber column into a section with the area as small as possible and the area of the circumference as large as possible; (2) the wall bases under the single glue columns are connected in the pull-back force range S2; (3) the viscosity of the adhesive sticker (namely the adhesive force of the unit contact area of the adhesive sticker to the wall skin) is improved.
According to the principle of increasing the perimeter area ratio, the square rubber column with the same area can be deformed into a rectangle and an oblique parallelogram to further increase the perimeter area ratio, so that the easy-to-tear performance is further improved (the wall is not damaged when the square rubber column is torn off more quickly). Through experimental tests, the original non-setting adhesive surface which is seriously uncovered and provided with the wall leather is divided into a square adhesive column set with the side length lower than the DT value, and the non-setting adhesive surface is reproduced into an oblique parallelogram and then pasted on the wall surface to be uncovered, the wall leather is not required to be arranged, and the effect is completely consistent with the theory.
Example 1 wall paper
A wall sticker with adhesive surface micronized arrangement non-setting adhesive, as shown in figures 1 and 14, comprises a base body and an adhesive layer coated on the base body, wherein a plurality of criss-cross grooves are arranged on the adhesive layer, and the adhesive layer is divided into a plurality of independent adhesive columns by the grooves.
Wherein, the cross section of the glue column is square. i.e. i1Is taken as 2N/cm2。
In order to make the adhesive layer 1 have a larger area ratio of the circumference C/S, the cross section of the adhesive column can be made to be circular and snowflake-shaped
Cross star shape
Five-pointed star shape
Experiment test, dividing the original wall paper with the sticky glue surface with the wall leather into a square glue column set with the side length lower than DT value, and reproducing the square glue column set into an oblique parallelogram, a round shape and a snowflake shape
Cross star shape
Or in the shape of a five-pointed star
After that, the air conditioner is started to work,then the paste is pasted on the wall surface and is taken off, and the wall skin is not taken, so that the effect is completely consistent with the theory.
Example 2 wall poster
A wall sticker with adhesive surface micronized arrangement non-setting adhesive, as shown in figures 1 and 14, comprises a base body and an adhesive layer coated on the base body, wherein a plurality of criss-cross grooves are arranged on the adhesive layer, and the adhesive layer is divided into a plurality of independent adhesive columns by the grooves.
Wherein, the cross section of the glue column is square. i.e. i1Is 1.8N/cm2。
In order to make the adhesive layer 1 have a larger area ratio of the circumference C/S, the cross section of the adhesive column 12 can be made to be circular and snowflake-shaped
Cross star shape
Five-pointed star shape
Experiment test, dividing the original wall poster with the sticky glue surface with the wall leather which is seriously uncovered into a square glue column set with the side length lower than DT value, and reproducing the square glue column set into an oblique parallelogram, a round shape and a snowflake shape
Cross star shape
Or in the shape of a five-pointed star
And then the adhesive tape is stuck on the wall surface and is taken off, so that the wall surface is not taken, and the effect is completely consistent with the theory.
Example 3 whiteboard:
a whiteboard sticker with adhesive surface micronized arrangement non-setting adhesive, as shown in figures 1 and 14, comprises a base body made of flexible material, thereby being more convenient and rapid to stick. The adhesive glue layer is coated on the substrate, the substrate can be adhered to carriers such as walls, door panels and the like through the adhesive glue layer, the substrate can be adhered and used on a flat surface, and the use scene is not limited. Be provided with vertically and horizontally staggered's a plurality of slots on the adhesion glue film, vertically and horizontally staggered's slot intercommunication each other is convenient for the gas circulation. Because the criss-cross grooves are formed in the adhesive layer, the criss-cross grooves divide the adhesive layer into a plurality of independent adhesive columns. Each glue column can be singly bonded on the base body, or a plurality of glue columns can be bonded on the base body after being connected into a whole at the bottom.
Wherein, the cross section of the glue column is square. i.e. i1Is taken to be 2.2N/cm2。
In order to make the adhesive layer 1 have a larger area ratio of the circumference C/S, the cross section of the adhesive column can be made to be circular and snowflake-shaped
Cross star shape
Five-pointed star shape
Finally, in order to expand the use condition of the soft white board sticker, as shown in fig. 13, the base body is arranged to include an adsorption layer, a white board main body layer and a PET polyester film which are sequentially overlapped on the adhesive glue layer, wherein the adsorption layer is an iron powder glue layer. Can be coated by a mixture of 50-70% by weight of iron powder and glue. Iron powder is doped in the adsorption layer of the base body, so that the base body has the property of iron, can be used for adsorbing some writing auxiliary devices (writing pens, wiping, marking and the like) on the white board, is lighter in weight compared with the traditional iron plate and iron sheet, can generate enough adsorption force to ensure the adsorption effect, and is more convenient and faster to use.
The experimental test is that the original white board sticker with the sticky sticker surface with the wall leather which is seriously uncovered is divided into squares with the side length lower than the DT valueThe glue columns are integrated and are replayed into oblique parallelogram, round and snowflake shapes at the same time
Cross star shape
Or in the shape of a five-pointed star
And then the adhesive tape is stuck on the wall surface and is taken off, so that the wall surface is not taken, and the effect is completely consistent with the theory.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (8)
1. The utility model provides a wall subsides with adhesive surface micronizes and arranges non-setting adhesive, includes base member (2), coating adhesion glue film (1) on base member (2), its characterized in that: the adhesive layer (1) is provided with a plurality of criss-cross grooves (11), and the grooves (11) divide the adhesive layer (1) into a plurality of independent adhesive columns (12); the force of the wall skin (3) which is pulled outwards by the wall sticker with the adhesive surface micronized arrangement adhesive sticker is sigma F1The force of pulling the wall skin (3) inwards by the wall base (4) is sigma F2Satisfies Σ F1<∑F2。
2. The wall sticker with the adhesive surface micronized arrangement adhesive sticker as claimed in claim 1, characterized in that: the pull-back force ranges S2 of the wall bases (4) under the single glue columns (12) are connected or intersected, wherein S2The area of the wall skin corresponding to the lower part of the rubber column under the action of the inward pulling force of the wall base.
3. The wall sticker with the adhesive surface micronized arrangement adhesive sticker as claimed in claim 1, characterized in that: the cross section of the rubber column (12) is in a parallelogram shape, a circular shape, a snowflake shape, a cross star shape or a pentagram star shape.
4. The wall sticker with the adhesive surface micronized arrangement adhesive sticker as claimed in claim 3, wherein: the parallelogram of the cross section of the rubber column (12) comprises a square, a rectangle or a rhombus, and when the cross section of the rubber column (12) is square: in the first case: when i is2≥i1When D is1Is any value greater than 0; in the second case: when i is2＜i1When D is1≦DTSaid D isTIs 2 delta i2 1/2/(i1 1/2-i2 1/2) Wherein i1Is the bonding strength of the unit area adhesive sticker to the wall skin, i2The bonding strength of the wall base to the wall skin in units area, D1The length of the side of the square rubber column is DT which is the maximum value of the length of the side of the square rubber column.
5. The wall sticker with the adhesive surface micronized arrangement adhesive sticker as claimed in claim 4, wherein: said DTBy the equation y ═ i2-i1)D1 2+4i2δD1+4i2δ2Solving, wherein y is a resultant function of the pull-back force and the lifting force; i.e. i1The bonding strength of the unit area adhesive sticker to the wall skin is shown; i.e. i2The bonding strength of the wall base to the wall skin is the unit area; d1The side length of the square rubber column; d2To side length of D1The width of the wall skin under the rubber column is corresponding to the action area of the wall base inward drawing force; delta is the flaring distance, delta ═ D2-D1) 2; DT is the maximum value of the side length of the square rubber column.
6. The wall sticker with the adhesive surface micronization arrangement adhesive sticker as claimed in claim 4 or 5, wherein: the bonding strength of the unit area adhesive sticker to the wall skin is i1Is 1.8-2.2N/cm2。
7. The wall sticker with the adhesive surface micronization arrangement adhesive sticker as claimed in claim 4 or 5, wherein: the wall sticker is a wall sticker, a wall poster or a wall veneer.
8. The wall sticker with the adhesive surface micronized arrangement adhesive sticker as claimed in claim 7, wherein: when the wall flitch is pasted for the blank, base member (2) are including overlapping adsorbed layer (21), blank bulk layer (22) and PET polyester film (23) that set up on adhesion glue film (1) in proper order, and adsorbed layer (21) are the iron powder glue film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210067880.9A CN114263319A (en) | 2022-01-20 | 2022-01-20 | Wall poster with adhesive surface micronized arrangement non-setting adhesive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210067880.9A CN114263319A (en) | 2022-01-20 | 2022-01-20 | Wall poster with adhesive surface micronized arrangement non-setting adhesive |
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| CN2578332Y (en) * | 2002-11-07 | 2003-10-08 | 林子茂 | Paper based adhesive tape |
| CN202491593U (en) * | 2012-01-09 | 2012-10-17 | 东莞中世拓实业有限公司 | Soft white board convenient to paste again |
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| CN207793147U (en) * | 2017-09-28 | 2018-08-31 | 上海昭和高分子有限公司 | A kind of easily peelable point-like glue band |
| US20200324532A1 (en) * | 2018-06-29 | 2020-10-15 | Mitsubishi Heavy Industries, Ltd. | Interior member for aircraft, manufacturing method of the same, and replacement method of the same |
| TW202124158A (en) * | 2019-11-08 | 2021-07-01 | 美商3M新設資產公司 | Repositionable adhesive articles for stretch release removal |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578332Y (en) * | 2002-11-07 | 2003-10-08 | 林子茂 | Paper based adhesive tape |
| CN202491593U (en) * | 2012-01-09 | 2012-10-17 | 东莞中世拓实业有限公司 | Soft white board convenient to paste again |
| CN206986086U (en) * | 2017-07-28 | 2018-02-09 | 东莞中世拓实业有限公司 | A kind of two-sided tape with point-like structural adhesive layer |
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