Wallpaper based on negative oxygen ion particle coating and preparation method thereof

Abstract

The present invention relates to the field of wallpaper preparation, and in particular to a wallpaper based on negative oxygen ion particle coating and a preparation method thereof, wherein the method comprises: determining a processing method according to the ink thickness state, the processing method is to adjust the ink dosage, or to analyze the ink uniformity state; when analyzing the ink uniformity state, multiple ink uniformity state detections are performed on the target wallpaper to determine the uniformity of the state to determine whether to analyze the effective ink uniformity state, or to analyze the printing vibration parameters; in the analysis of the effective ink uniformity state, according to the preset ink uniformity state of the effective ink uniformity state, the scraper angle is adjusted, or the printing speed is adjusted; the present invention overcomes the problem in the prior art that the accurate adjustment parameters cannot be selected according to the different states of the printing thickness, resulting in the uneven thickness of the gravure printing.

Description

Technical Field

[0001] The invention relates to the field of wallpaper preparation, and in particular to wallpaper based on negative oxygen ion particle coating and a preparation method thereof. Background Art

[0002] With the rapid development of social economy and the continuous improvement of people's living standards, wallpaper will be increasingly used as interior wall decoration materials. The increase in the general demand for wallpaper has brought about a continuous increase in the amount of wallpaper equipment. The improvement of people's quality of life has made the requirements for wallpaper quality higher and higher, and thus the requirements for the automation level of wallpaper equipment are also constantly increasing. Wallpaper with negative oxygen ion coating is a new type of environmentally friendly wallpaper. Negative ions can destroy bacterial cell walls, thereby playing a sterilizing role. In addition, negative ions can absorb dust and other dust substances in the air through electrostatic action. However, in actual production, uneven thickness of gravure printing is a common problem, which affects the appearance. Therefore, the thickness of the printed coating is one of the important indicators of wallpaper quality. Common methods include adjusting the printing speed and the pressure of the ink scraper. However, how to select accurate adjustment parameters according to the different states of printing thickness is a problem that needs to be solved by technicians in this field.

[0003] Chinese patent publication number CN104404832A discloses a method for producing wallpaper, comprising the following steps:

[0004] Step 1: unwind the non-woven paper on a printing machine and then feed it into a coating machine; Step 2: the coating machine uses a first PVC foaming slurry to coat a PVC layer on the surface of the non-woven paper, and then plasticizes, foams and cools to obtain a foamed semi-finished product; Step 3: unwind the foamed semi-finished product and feed it into a rotary screen printing device, which uses a second PVC foaming slurry to print color and three-dimensional simulation patterns on the surface layer of the foamed semi-finished product, dries it with hot air, and then cools it to obtain a printed semi-finished product; Step 4: feed the printed semi-finished product into an oven for heating and foaming; Step 5: feed the wallpaper semi-finished product into a cooling roller, cool it with circulating water, and restore it to room temperature to obtain wallpaper. In addition, Chinese patent publication number CN110373950A discloses a processing technology for ultra-deep embossed synchronous facing paper, including: preparation; engraving; printing; drying; sealing; pressing. The present invention prints paper with water-based high-adhesion ink to solve the problem of easy fading after high adhesion of water-based ink, and makes the ink state stable and evenly distributed; it can be seen that the above technical solutions all take into account the influence of printing parameters on the printing thickness of ink, which leads to the problem of uneven thickness of gravure printing. Summary of the invention

[0005] To this end, the present invention provides a wallpaper based on negative oxygen ion particle coating and a preparation method thereof, so as to overcome the problem in the prior art that accurate adjustment parameters cannot be selected according to different states of printing thickness, resulting in uneven gravure printing thickness.

[0006] To achieve the above object, the present invention provides a wallpaper based on negative oxygen ion particle coating, comprising:

[0007] Grassroots;

[0008] A finishing layer, the finishing layer is attached to the surface of the base layer, and the finishing layer includes negative oxygen ion slurry and water-based ink;

[0009] The negative oxygen ion slurry includes monazite, deionized water and sodium hydroxide;

[0010] The ratio of monazite to deionized water is 1:5;

[0011] The ratio of sodium hydroxide to deionized water is 3:20;

[0012] The base layer is wallpaper base paper, pure paper, non-woven paper or blended cloth.

[0013] The present invention provides a method for preparing the wallpaper based on the negative oxygen ion particle coating, comprising:

[0014] Detect the ink thickness of the target wallpaper and determine the treatment method according to the ink thickness, which is to adjust the ink dosage or analyze the uniformity of the ink;

[0015] When analyzing the ink uniformity, multiple ink uniformity tests are performed on the target wallpaper to determine the uniformity of the state to determine whether to analyze the effective ink uniformity, or to analyze the printing vibration parameters;

[0016] In the analysis of the effective ink uniformity state, the scraper angle is adjusted according to the preset ink uniformity state of the effective ink uniformity state, or the printing speed is adjusted;

[0017] In the analysis of the printing vibration parameters, the printing speed is adjusted according to the preset printing vibration parameter range in which the printing vibration parameters are located, or the printing speed is regionally set according to the complexity of the gravure roller pattern.

[0018] Furthermore, the ink thickness state of the target wallpaper is detected and a treatment method is determined according to the ink thickness state, and the treatment method is to adjust the ink dosage, or to analyze the uniformity state of the ink;

[0019] The selection of the processing method is related to the preset ink thickness state of the ink thickness state.

[0020] Furthermore, when adjusting the ink amount, the ink amount is adjusted according to the overall difference in ink thickness, and the adjustment trend of the ink amount is related to the overall difference in ink thickness;

[0021] The adjustment trend of ink usage is increasing adjustment and decreasing adjustment;

[0022] The adjustment amount of ink usage is positively correlated with the overall difference in ink thickness.

[0023] Furthermore, when analyzing the ink uniformity, the target wallpaper is subjected to multiple ink uniformity tests to determine the uniformity of the state. If the uniformity of the state is within a first preset uniformity range, the effective ink uniformity is further analyzed.

[0024] If the state uniformity is within the second preset state uniformity range, the printing vibration parameters are analyzed.

[0025] Further, under the first analysis condition, the effective ink uniformity state is analyzed, and if the effective ink uniformity state is in the first preset ink uniformity state, the scraper angle is adjusted;

[0026] If the effective ink uniformity state is in the second preset ink uniformity state, adjusting the printing speed;

[0027] The first analysis condition is that the state uniformity is within a first preset state uniformity range.

[0028] Furthermore, under the first adjustment condition, the edge center thickness difference is calculated, and the scraper angle is adjusted to decrease according to the edge center thickness difference;

[0029] The reduction of scraper angle is positively correlated with the difference in edge center thickness;

[0030] Among them, the first adjustment condition is that the effective ink uniformity state is in a first preset ink uniformity state.

[0031] Furthermore, under the second adjustment condition, the proportion of the non-uniform area is detected, and the printing speed is adjusted to decrease according to the proportion of the non-uniform area;

[0032] The reduction in printing speed is positively correlated with the proportion of non-uniform area;

[0033] Among them, the second adjustment condition is that the effective ink uniformity state is in a second preset ink uniformity state.

[0034] Further, under the second analysis condition, the printing vibration parameter is analyzed, and if the printing vibration parameter is within the first preset printing vibration parameter range, the printing speed is reduced and adjusted according to the printing vibration parameter;

[0035] If the printing vibration parameter is within the second preset printing vibration parameter range, performing regional setting for the printing speed according to the complexity of the gravure roller pattern;

[0036] Wherein, the second analysis condition is that the state uniformity is within a second preset state uniformity range.

[0037] Further, under the third adjustment condition, the pattern complexity of each sub-area is detected, and if the pattern complexity is in a first preset pattern complexity state, the printing speed of the corresponding continuous sub-area is determined according to the pattern complexity;

[0038] If the pattern complexity is in a second preset pattern complexity state, manually performing ink analysis;

[0039] Among them, the first preset pattern complexity state is that there are at least two adjacent gravure roller areas whose pattern complexity is greater than the preset pattern complexity, and the second preset pattern complexity state is that the number of gravure roller areas whose pattern complexity is greater than the preset pattern complexity is less than or equal to 1, or there are no at least two adjacent gravure roller areas whose pattern complexity is greater than the preset pattern complexity.

[0040] Compared with the prior art, the beneficial effect of the present invention lies in that the present invention sets the detection of ink thickness state and ink uniformity state for the target wallpaper, so that the user can more accurately grasp the ink printing state of the target wallpaper, and when analyzing the ink uniformity state, multiple ink uniformity state detections are performed on the target wallpaper to determine the state uniformity, and when the state uniformity is within different threshold ranges, different processing methods are selected to avoid the randomness of the detection result, so that the detection result is more accurate and the corresponding processing method is more in line with actual work needs, overcoming the problem in the prior art that the accurate adjustment parameters cannot be selected according to the different states of the printing thickness, resulting in uneven gravure printing thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 Schematic diagram of a method for preparing wallpaper based on negative oxygen ion particle coating according to an embodiment of the present invention;

[0042] Figure 2 A flowchart of an embodiment of the present invention for determining a processing method according to an ink thickness state;

[0043] Figure 3 The flowchart of analyzing printing vibration parameters according to an embodiment of the present invention. DETAILED DESCRIPTION

[0044] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0045] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0046] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0047] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] See also Figures 1 to 3 As shown, the present invention provides a wallpaper based on negative oxygen ion particle coating, comprising:

[0049] Grassroots;

[0050] A finishing layer, the finishing layer is attached to the surface of the base layer, and the finishing layer includes negative oxygen ion slurry and water-based ink;

[0051] The negative oxygen ion slurry includes monazite, deionized water and sodium hydroxide;

[0052] The ratio of monazite to deionized water is 1:5;

[0053] The ratio of sodium hydroxide to deionized water is 3:20;

[0054] The base layer is wallpaper base paper, pure paper, non-woven paper or blended cloth.

[0055] The present invention provides a method for preparing the wallpaper based on the negative oxygen ion particle coating, comprising:

[0056] Detect the ink thickness of the target wallpaper and determine the treatment method according to the ink thickness, which is to adjust the ink dosage or analyze the uniformity of the ink;

[0057] When analyzing the ink uniformity, the target wallpaper is subjected to multiple ink uniformity tests to determine the uniformity of the state to determine whether to analyze the effective ink uniformity, or to analyze the printing vibration parameters;

[0058] In the analysis of the effective ink uniformity state, the scraper angle is adjusted according to the preset ink uniformity state of the effective ink uniformity state, or the printing speed is adjusted;

[0059] In the analysis of the printing vibration parameters, the printing speed is adjusted according to the preset printing vibration parameter range in which the printing vibration parameters are located, or the printing speed is regionally set according to the complexity of the gravure roller pattern.

[0060] Specifically, the ink thickness state of the target wallpaper is detected and a treatment method is determined according to the ink thickness state, and the treatment method is to adjust the ink dosage, or to analyze the uniformity of the ink;

[0061] The selection of the processing method is related to the preset ink thickness state of the ink thickness state.

[0062] Provided is a production process for negative oxygen ion slurry of the present invention, comprising:

[0063] The cleaned monazite was ground to 1250 mesh, and the 1250 mesh monazite powder was mixed with deionized water in a ratio of 1:5. The stirred monazite slurry was pumped into a wet horizontal grinder for secondary grinding. The monazite particle size in the slurry was ground to 0.8 microns. The secondary wet-ground slurry was pumped into the reactor, the temperature was raised to 60°C for stirring, the speed was controlled at 120 revolutions per minute, and sodium hydroxide was added in an amount of 15% of the total slurry. After stirring for 10 minutes, the stirring was stopped, and it was left to stand for 3 hours. After 3 hours, the monazite slurry with a pH value of 8 was obtained by secondary stirring for 20 minutes, and the monazite slurry was placed in a storage tank for standby use. It is worth noting that in the preparation process of the target wallpaper, negative oxygen ions were added to the water-based ink, and the weight ratio of the water-based ink to the negative oxygen ion slurry was 100:15.

[0064] The present invention adopts a laser triangulation displacement sensor to detect the ink thickness, which is a non-contact position detection method. The laser triangulation thickness measurement uses a laser to irradiate the surface of the object to be measured, uses a position detector to receive scattered light, and calculates the position difference of the scattered light points to calculate the thickness to be measured. This is easy for technicians in this field to understand and will not be elaborated here.

[0065] Specifically, the ink thickness state includes a first preset ink thickness state and a second preset ink thickness state. The first preset ink thickness state is that the ink thickness is within the required ink thickness range, and the second preset ink state is that the ink thickness at a thickness detection point is not within the required ink thickness range. The required ink thickness range is set by the user, and the values ​​within the required ink thickness range are all greater than or equal to the minimum thickness required by the user and are all less than or equal to the maximum thickness required by the user. The thickness detection point is any point on the target wallpaper, and the number of thickness detection points is set by the user. The higher the user's demand for wallpaper thickness uniformity, the greater the number of thickness detection points.

[0066] Specifically, in the second preset ink thickness state, when adjusting the ink amount, the ink amount is adjusted according to the overall difference in ink thickness, and the adjustment trend of the ink amount is related to the overall difference in ink thickness;

[0067] The adjustment trend of ink usage is increasing adjustment and decreasing adjustment;

[0068] The adjustment amount of ink usage is positively correlated with the overall difference in ink thickness.

[0069] Specifically, the ink thickness corresponding to each thickness detection point is extracted, and the maximum and minimum values ​​therein are extracted. If the maximum value is greater than any value within the required ink thickness range and the minimum value is within the required ink thickness range, the adjustment trend of the ink usage is to reduce the adjustment, and the overall difference in ink thickness is set to the difference between the maximum value of the ink thickness corresponding to the thickness detection point and the maximum value of the required ink thickness range; if the minimum value is less than any value within the required ink thickness range and the maximum value is within the required ink thickness range, the adjustment trend of the ink usage is to increase the adjustment, and the overall difference in ink thickness is set to the difference between the minimum value of the required ink thickness range and the minimum value of the ink thickness corresponding to the thickness detection point; if the minimum value is greater than any value within the required ink thickness range, the maximum value is less than any value within the required ink thickness range, or both the maximum value and the minimum value are not within the required ink thickness range, manual fault detection is performed on the printing device.

[0070] Specifically, when analyzing the ink uniformity state under the first preset ink thickness state, the ink uniformity state is detected multiple times for the target wallpaper to determine the uniformity of the state. If the uniformity of the state is within the first preset uniformity range, the analysis of the effective ink uniformity state is continued;

[0071] If the state uniformity is within the second preset state uniformity range, the printing vibration parameters are analyzed, wherein the number of ink uniformity detections is N times, and each 3m in the wallpaper transmission direction is recorded as a detection area, and the wallpaper is divided into three detection sub-areas in the wallpaper width direction, and the area of ​​each detection sub-area is the same. The two detection sub-areas close to the edge are both edge areas, and the detection sub-area between the edge areas is the center area. For a single detection area, C detection points are randomly selected for each edge area and center area as uniform detection points, and the uniform thickness of each edge area and the uniform thickness of the center area are calculated respectively. The uniform thickness of the edge area is recorded as H1 and H2, and the uniform thickness of the center area is recorded as H3. The uniform thickness is the average value of the sum of the thicknesses of the uniform detection points of the corresponding areas. The first preset ink uniformity state is that H1 and H2 are both less than H3, and the second preset ink uniformity state is that H1 or H2 is greater than H3.

[0072] Specifically, state uniformity = maximum number of detection areas in the same ink uniform state / total number of detection areas. The values ​​within the first preset state uniformity range are all greater than 50%, and the values ​​within the second preset state uniformity range are all less than 50%.

[0073] Specifically, under the first analysis condition, the effective ink uniformity state is analyzed, and if the effective ink uniformity state is in the first preset ink uniformity state, the scraper angle is adjusted;

[0074] If the effective ink uniformity state is in the second preset ink uniformity state, adjusting the printing speed;

[0075] The first analysis condition is that the state uniformity is within a first preset state uniformity range.

[0076] Specifically, under the first adjustment condition, the edge center thickness difference is calculated, and the scraper angle is reduced and adjusted according to the edge center thickness difference;

[0077] The reduction of scraper angle is positively correlated with the difference in edge center thickness;

[0078] Among them, the first adjustment condition is that the effective ink uniformity state is in a first preset ink uniformity state.

[0079] A reference vertical line is established between the contact point of the scraper and the gravure roller and the horizontal ground. The scraper angle is the minimum angle between the scraper and the reference vertical line. It can be understood that, under the condition that other conditions remain unchanged, reducing the scraper angle can reduce the pressure of the scraper on the gravure roller, thereby reducing the ink thickness in the central area.

[0080] Specifically, under the second adjustment condition, the proportion of the non-uniform area is detected, and the printing speed is adjusted to decrease according to the proportion of the non-uniform area;

[0081] The reduction in printing speed is positively correlated with the proportion of non-uniform area;

[0082] Among them, the second adjustment condition is that the effective ink uniformity state is in a second preset ink uniformity state.

[0083] Specifically, the non-uniform area ratio=the number of detection areas in the second preset ink uniform state / the total number of detection areas.

[0084] Specifically, under the second analysis condition, the printing vibration parameter is analyzed, and if the printing vibration parameter is within the first preset printing vibration parameter range, the printing speed is reduced and adjusted according to the printing vibration parameter;

[0085] If the printing vibration parameter is within the second preset printing vibration parameter range, performing regional setting for the printing speed according to the complexity of the gravure roller pattern;

[0086] Wherein, the second analysis condition is that the state uniformity is within a second preset state uniformity range.

[0087] Specifically, a vibration sensor is used to continuously monitor the vibration frequency of the gravure printing machine. Every 10 minutes is recorded as a monitoring cycle. The printing vibration parameter is the maximum vibration frequency of the gravure printing machine corresponding to the monitoring cycle closest to the current moment. The values ​​within the first preset printing vibration range are all greater than 20Hz, and the values ​​within the second preset printing vibration range are all less than or equal to 20Hz.

[0088] When the printing speed is reduced and adjusted according to the printing vibration parameter, the reduction amount of the printing speed is positively correlated with the printing vibration parameter.

[0089] Specifically, under the third adjustment condition, the pattern complexity of each sub-area is detected, and if the pattern complexity is in a first preset pattern complexity state, the printing speed of the corresponding continuous sub-area is determined according to the pattern complexity;

[0090] If the pattern complexity is in a second preset pattern complexity state, manually performing ink analysis;

[0091] Among them, the first preset pattern complexity state is that there are at least two adjacent gravure roller areas whose pattern complexity is greater than the preset pattern complexity, and the second preset pattern complexity state is that the number of gravure roller areas whose pattern complexity is greater than the preset pattern complexity is less than or equal to 1, or there are no at least two adjacent gravure roller areas whose pattern complexity is greater than the preset pattern complexity.

[0092] Specifically, the gravure roller is divided into four gravure roller areas of equal area according to the rotation direction of the gravure roller, and the printing pattern of each gravure roller area is analyzed. If the number of lines in the printed pattern is greater than 10, the pattern complexity is greater than the preset pattern complexity. If the number of lines in the printed pattern is less than or equal to 10, the pattern complexity is less than or equal to the preset pattern complexity.

[0093] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for preparing wallpaper based on negative oxygen ion particle coating, characterized in that: include: Detect the ink thickness of the target wallpaper and determine the treatment method according to the ink thickness, which is to adjust the ink dosage or analyze the uniformity of the ink; When analyzing the ink uniformity, the target wallpaper is subjected to multiple ink uniformity tests to determine the uniformity of the state to determine whether to analyze the effective ink uniformity, or to analyze the printing vibration parameters; In the analysis of the effective ink uniformity state, the scraper angle is adjusted according to the preset ink uniformity state of the effective ink uniformity state, or the printing speed is adjusted; In the analysis of the printing vibration parameters, the printing speed is adjusted according to the preset printing vibration parameter range in which the printing vibration parameters are located, or the printing speed is regionally set according to the complexity of the gravure roller pattern; Wherein, the wallpaper includes: Grassroots; A finishing layer, the finishing layer is attached to the surface of the base layer, and the finishing layer includes negative oxygen ion slurry and water-based ink; The negative oxygen ion slurry includes monazite, deionized water and sodium hydroxide; The ratio of monazite to deionized water is 1:5; The ratio of sodium hydroxide to deionized water is 3:20; The base layer is wallpaper base paper, pure paper, non-woven paper or blended cloth.

2. The method for preparing wallpaper based on negative oxygen ion particle coating according to claim 1, characterized in that: Detect the ink thickness of the target wallpaper and determine the treatment method according to the ink thickness, which is to adjust the ink dosage or analyze the uniformity of the ink; The selection of the processing method is related to the preset ink thickness state of the ink thickness state.

3. The method for preparing wallpaper based on negative oxygen ion particle coating according to claim 2, characterized in that: When adjusting the ink amount, the ink amount is adjusted according to the overall difference in ink thickness, and the adjustment trend of the ink amount is related to the overall difference in ink thickness; The adjustment trend of ink usage is increasing adjustment and decreasing adjustment; The adjustment amount of ink usage is positively correlated with the overall difference in ink thickness.

4. The method for preparing wallpaper based on negative oxygen ion particle coating according to claim 3, characterized in that: When analyzing the ink uniformity, the target wallpaper is tested for the ink uniformity for multiple times to determine the uniformity of the state. If the uniformity of the state is within the first preset uniformity range, the effective ink uniformity is further analyzed. If the state uniformity is within the second preset state uniformity range, the printing vibration parameters are analyzed.

5. The method for preparing wallpaper based on negative oxygen ion particle coating according to claim 4, characterized in that: Under the first analysis condition, an effective ink uniformity state is analyzed, and if the effective ink uniformity state is in a first preset ink uniformity state, the scraper angle is adjusted; If the effective ink uniformity state is in the second preset ink uniformity state, adjusting the printing speed; The first analysis condition is that the state uniformity is within a first preset state uniformity range.

6. The method for preparing wallpaper based on negative oxygen ion particle coating according to claim 5, characterized in that: Under the first adjustment condition, the edge center thickness difference is calculated, and the scraper angle is adjusted to decrease according to the edge center thickness difference; The reduction of scraper angle is positively correlated with the difference in edge center thickness; Among them, the first adjustment condition is that the effective ink uniformity state is in a first preset ink uniformity state.

7. The method for preparing wallpaper based on negative oxygen ion particle coating according to claim 6, characterized in that: Under the second adjustment condition, the proportion of the non-uniform area is detected, and the printing speed is reduced and adjusted according to the proportion of the non-uniform area; The reduction in printing speed is positively correlated with the proportion of non-uniform area; Among them, the second adjustment condition is that the effective ink uniformity state is in a second preset ink uniformity state.

8. The method for preparing wallpaper based on negative oxygen ion particle coating according to claim 7, characterized in that: Under the second analysis condition, the printing vibration parameter is analyzed, and if the printing vibration parameter is within the first preset printing vibration parameter range, the printing speed is reduced and adjusted according to the printing vibration parameter; If the printing vibration parameter is within the second preset printing vibration parameter range, performing regional setting for the printing speed according to the complexity of the gravure roller pattern; Wherein, the second analysis condition is that the state uniformity is within a second preset state uniformity range.

9. The method for preparing wallpaper based on negative oxygen ion particle coating according to claim 8, characterized in that: Under the third adjustment condition, the pattern complexity of each sub-area is detected, and if the pattern complexity is in a first preset pattern complexity state, the printing speed of the corresponding continuous sub-area is determined according to the pattern complexity; If the pattern complexity is in a second preset pattern complexity state, manually performing ink analysis; Among them, the first preset pattern complexity state is that there are at least two adjacent gravure roller areas whose pattern complexity is greater than the preset pattern complexity, and the second preset pattern complexity state is that the number of gravure roller areas whose pattern complexity is greater than the preset pattern complexity is less than or equal to 1, or there are no at least two adjacent gravure roller areas whose pattern complexity is greater than the preset pattern complexity.

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