What are the Precautions for Purchasing PVC Edge Banding?
2023-02-17
The PVC Edge Banding series is divided into Pvc Solid Color Edge Banding and PVC Double Color Edge Banding according to the color, and the content of calcium carbonate powder (commonly known as lime powder) in the Pvc Edge Banding is high or low. Generally, PVC edge banding will contain calcium carbonate powder, but if the content of calcium carbonate powder is too high, the structure of PVC will become loose, which will seriously affect the quality of PVC edge banding.
Edge Banding Series
The problems caused by the high content of calcium carbonate powder are:
1) Whitening, that is, after the PVC edge banding is bent in a small arc, whitening will appear on the playing edge, and this whitening will not recover after the PVC edge banding is straightened again. This phenomenon will be more obvious for dark colors.
2) Jumping edge, which is easy to produce jumping mouth when trimming PVC edge banding. Of course, the reason for the side jumping is not only the high content of calcium carbonate powder. When doing edge banding, when the hot melt adhesive for edge banding and the speed of feeding are not well coordinated, it will cause the PVC edge banding strip to not be completely bonded to the board when trimming the edge, so the PVC edge banding strip It is easy to cause the edge jumping phenomenon due to the floating.
3) The glossiness of the edge of the PVC edge strip after trimming and grinding is poor, so the appearance effect will be poor. At present, in order to reduce the cost of the inferior PVC edge banding strips on the market, the content of calcium carbonate powder is as high as 60%. As for different equivalent products of the same brand, it is mainly the content of their calcium carbonate powder.
4) Cracking. Due to the high content of calcium carbonate, the PVC edge banding has no toughness and loose internal structure. It will crack when it is slightly affected by external force, especially in transportation at low temperature.
PVC Double Color Edge Banding
Precautions for purchasing PVC Edge Banding Series
A: The surface is smooth, no bubbles, no stretch marks, moderate gloss.
B: The surface and back are flat, uniform in thickness, and consistent in width.
C: The hardness is reasonable, the higher the elasticity, the better the quality and the stronger the wear resistance.
D: After the edge is repaired, the side color of the PVC edge banding is as close as possible to the surface color, the better, the whitening is not obvious, and the gloss is good. Otherwise, the material used for the PVC edge banding is too low, which will cause the overall color of the finished furniture to be uncoordinated.
E: The back treatment agent is applied evenly. Generally, transparent and white treatment agents are better. If the back treatment is not done properly, the bonding strength after edge sealing will be low, or even not bonded.
F: The color of each batch of PVC edge banding must be consistent. The smaller the color difference between different batches, the better the quality.
G: Trimming and cutting are not brittle, and there are no gaps.
H: The transparent sealing glue is pasted on the edge banding. Use your fingers to rub back and forth on the position where the sealing glue is pasted several times, and then pull it up. The purpose of this inspection is to check whether the edge banding has discoloration.