Choose one. See skills
See, smell, touch, wipe jian quality
Check first to see version of the volume sample: look at the surface is existence chromatism, drape or bubble, design and color is clear, the color design whether uniform; By hand to touch and feel the simple sense is good, from different parts of the thick paper whether uniform; Nose to smell, if wallpaper have peculiar smell, likely the harmful material such as VOC content is higher, we can get the test report view; Use a wet cloth to wipe wallpaper surface and see if it is a fading.
Environmental protection performance can be reading the report
Wallpaper of the large area usually laid at home, need special attention when the choose and buy their environmental performance. Some containing polyvinyl chloride monomer, wallpaper harmful material such as formaldehyde, heavy metal. China building materials inspection certification center Co., LTD, deputy general manager ShangYueQing pointed out that, generally speaking, strong, bright color to the wallpaper by increasing the dosage of the pigment paste to achieve the result, some products of the heavy metal oxide added, so consumers in the choose and buy more than those who design and color, the color, the surface of thick wallpaper, will pay close attention to its heavy metal exceeds bid, whether by checking products inspection report to identify.
Ensure that Numbers and batch number consistent
To see the Numbers and purchased wallpaper lot number are consistent. Some products is the same Numbers, but despite the different production batches of product may exist between off color, fine when buy off color often difficult to detect, affix wall will be found. And each volume wallpaper the batch number on represents same color namely, so shall confirm the batch number for the same product, avoid occurrence chromatism.
Reasonable loss reserve consumption
Small volume wallpaper rolls, don't sell general cutting zero. In the actual in the shop is stuck there, wallpaper 10%-20% of reasonable, so in purchasing loss should be reserved, avoid the consumption replenishment effect later time or occurrence chromatism.
The choose and buy TIPS
Wallpaper of choose and buy when four principles need to master a is to see whether design, delicate have administrative levels feeling, tonal, whether natural transition that must not; 2 it is touch the wallpaper, feel its thickness is consistent; 3 it is to use the wet cloth slightly rub hard, such as a paper or take off layer is discolored quality is bad; Four is whether there is a peculiar smell smell wallpaper, such as odour is heavy, such as formaldehyde content of volatile matter may be higher.
Before purchasing to reasonable dosage required to estimate, one-time buy enough with the wallpaper of batch number. The dosage of the wallpaper in the following formula can be calculated: wallpaper usage (roll) = room perimeter x room highly x (100 + K) / each volume can spread area. Standard wallpaper each volume can stick 5.2 square meters, "K" for the wallpaper, usually the percent for 3 ~ 10, big design or need the wallpaper of groundnut K value slightly big.
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