1. Discoloration caused by non-conformance of anti-pollution of floor
After the surface abrasion-resistant paper of the floor is dipped in melamine, the pre-curing phenomenon occurs during the drying process, or the abrasion-resistant paper dipped in melamine is stored during the process, due to the high temperature of the storage environment, the melamine on the abrasion-resistant paper was pre-cured, the fluidity of melamine was reduced during the hot-pressing process, and many tiny pores were formed on the surface of the floor when the floor was cleaned, tiny dirt gets into tiny pores, causing the floor to turn black. This discoloration is found in the use of the characteristics of the process, some will appear several, serious will appear many and the distribution of irregular in the room.

2. The photochromic reaction of the laminated floor
Long-term exposure to the floor in the air will produce a certain color reaction, the general situation is from shallow to deep. Laminate flooring is made of decorative paper made of wood, wood has been tested, 62% of wood discoloration is caused by ultraviolet light, and 18% of wood discoloration is caused by visible light. Due to the different production processes of Wholesale laminate flooring companies, the anti-tarnishing ability of paper is different. Some factory production of paper anti-tarnishing capacity, the floor in the use of the process, although there will be a slight tarnishing, because tarnishing is not obvious, no cause for complaints. Some factory production of paper anti-tarnishing capacity is poor, and the floor in the use of the process of serious tarnishing will cause complaints.

3. Color difference due to different lot numbers
One of the reasons is that the samples are not the same batch number as the products provided, although the product model is the same, the color of the two batches of decorative paper is slightly different; the other is that the sample has been on the display shelf for too long, and the color has faded, even the same batch of products, there will be samples and the actual product color difference.