First, the colour difference of natural materials
The “color difference” of natural materials is common in furniture, ceramic tiles, flooring and other industries. The multitude of manufacturers and consumers have already reached a consensus. The same wallpaper uses organic materials, such as for example straw, and paper, diatomaceous earth, pulp dietary fiber, etc., because of the difference in the natural material itself, this situation can’t be avoided. It really is precisely due to this that the natural beauty of natural materials is more apparent, but this is by no means a quality problem.
Solution:
When you select a wallpaper, you need to know it in advance, that may reduce many problems in the afterwards stage; in case you are a store, you should explain it to the customer at the time of sale, therefore if the client can acknowledge such color difference, then your customer complaint problem It will be reduced a lot, and it’ll also add points to your service!
Second, the color difference of different batches due to the manufacturing process
1) The switch of temperature and humidity during the production procedure, the mistake of the formula will lead to the colour transformation of the produced product.
2) The thickness of the paper bottom, the density of the paper, the water absorption of the paper, and so on are slightly different, and the degree of adhesion of the printing pigments can also be different, thereby causing a problem of chromatic aberration.
3) There is a minor difference in the pressure between the two ends of the press during printing, which might cause a difference in color between your ends of the same roll of wallpaper.
4) Different batches of wallpaper creation, such as for example production shifts, substitute of raw materials, gear maintenance and other reasons will affect the regularity of product color.
5) 
Different production period (oxidation degree), sun publicity (effect of ultraviolet light) and other factors may also cause distinctions in color.
6) Distinctions in pigment batches, etc. In general, the color quantity of a wallpaper could be different.
Solution:
Before the construction, cut the three upper walls to see when there is any color difference. If the color difference is not obvious after assessment, you can use it with confidence. Usually, if there is color difference, three pieces can be detected.
Third, the color difference due to improper construction
1) Wipe with a damp cloth–wipe back and forth in the seams, and the wallpaper fades;
2) Scrape scraping and scratching – black at the seam;
3) The bunk is not laid as required – the seam is obvious;
4) Glue overflows – leading to a white edge on the seams;
Solution:
Good horses include good saddles. To begin with, don’t buy cheap wallpaper glue for the sake of cheapness, that may affect the big items in home decoration. The utilization of scrapers for wallpapering ought to be moderate; of program, the most important thing is to pay attention to wall treatment before construction. , the bottom film of the wall structure is painted; the base film of the wallpaper can efficiently fasten the wall surface, isolate the wall surface area and the wallpaper, prevent mildew and moisture, and facilitate secondary building. Finally, Xiao Qi really wants to remind everyone that when the wallpaper is definitely under construction, it must be gradual, not irritating.
Fourth, the colour difference due to other factors
1) Different light: the light and darkness of the light will cause apparent sensory differences. The usage of light is an important element of photography and painting, and in this environment, it may lead to psychological color difference.
2) Different angles: The angles of observation will vary, and the angles of light refraction will vary, which is actually due to different light. In the relevant national acceptance requirements, the premise of acceptance is usually: “Face around the corner” – using frontal observation, whether there is apparent color difference in the wallpaper, can be eager for this reason.
3) Different light sources: Different light Original Wallcovering sources reflect different shades. For instance, the wallpaper after paving will not see any issue under natural light, however when the customer pulls on the curtains and turns on the spotlights, it appears A certain color difference.
4) The influence of the feeling, the individual’s feelings are different: It sounds incredible, however the mood often impacts the inner emotions of the true murderer. Because the difference in color can be often not like other judgments, it could be expressed by quantities or terms, which is normally the criterion for judgment by the judge. Therefore the same elements of the same wallpaper, some individuals will think that the colour is deep, some individuals will think the color is light. Even the same person could have different subjective differences at different times.
Solution:
When the above color difference problem occurs, consider the “color difference value”, the colour difference of the color plate is very obvious, generally start to see the three ideals of ABL, respectively representing red green / blue yellow / black and white, just the colour difference is within a specific range Qualified, since the color difference test results are linked to the operating environment and methods, so there are two cases: there are almost no differences in the color of the eyes of both products, however the color difference is quite different; the two products look chromatic aberration, However, the colorimeter test outcomes are qualified.