? So how to distinguish the quality of packaging? ?
First of all, we can use the visual perception to judge. You can feel whether the package on both sides of the wood is flat and whether there are bumps and blisters. If it is not smooth and has a rough feeling, it is necessary to start to doubt whether the package is of poor quality. ?
If we look at the side edge sealing, the main problem of unqualified side sealing is the poor adhesion between the edge band and the side edge ? One is that both particle board and density board are glued with crushed materials, so the edge is not smooth and rough. If the amount of glue used for edge banding is insufficient, it is very easy to cause the edge banding to fall off. ? Second, the quality of the glue used in the edge banding is not good, and it is easy to lose efficacy. The poor quality glue may have a good bonding quality in the first two years, but with the increase of time, a series of reasons such as oxidation and moisture in the air will fall off and become invalid, and many businesses will take "improper use of customer's daily use" as an excuse to let consumers suffer. ??
The fracture surface of solid wood ecological board and solid wood multi-layer board is smoother than that of particle board and density board, so the bonding effect is better than that of particle board and density board under the same conditions. ?
Specifically, what should be done? The best choice is to let businesses provide a sample of furniture materials to be tested.
The common methods include: ?
1. Break it hard to see if the packaging material will be loose. If it is loose, the packaging material must not be firmly bonded, and even there is a gap on the bonding surface, which can not effectively prevent the formaldehyde volatilization in the inner material. ?
2. Cut the sealing surface with sharp objects to see the thickness of the packaging material. Generally, the thickness of 1-1.5mm can be regarded as the standard, which can effectively prevent the volatilization of formaldehyde in the inner material; ?
3. Peel off the edge banding (PVC edge banding is mainly used at present, so stripping is more convenient. Look at the flatness of wood section and the adhesive area. If only a small part of the area is coated with glue, it can be imagined that the effect is not good. Of course, you can take the opportunity to smell whether there is pungent smell to simply judge the quality of the glue used. ? ?
4. If the package material is easily deformed or even ignited after ignition, it is definitely unqualified material, and the purchase of such plate will become the hidden danger of family fire. ?
There is no absolute distinction between good and bad materials, especially in terms of physical properties, such as sound insulation performance, strength, compression degree, etc., and even the same kind of materials will have many differences. When choosing, you can know more about the performance parameters of materials, and ask the merchants to issue relevant reports. You can always help yourself to make your choice and avoid some choices that you will regret after purchasing.