Time：2021-08-12 Click：486
The aluminum veneer wood grain transfer profile refers to the rapid transfer of the wood grain pattern on the transfer paper or the transfer film by heating and pressurizing according to the principle of high temperature sublimation heat penetration on the basis of powder coating or electrophoretic painting. Printed and penetrated into the profile that has been sprayed or electrophoresed. The texture of the wood grain profile produced is clear, the stereoscopic effect is strong, and the natural feeling of the wood grain is more reflected. The price of the wood grain aluminum veneer is not very high, and it is an ideal energy-saving and environmentally-friendly material to replace the traditional wood.
Wood grain has strong adhesion to aluminum, non-toxic, no odor, easy to clean. The product lines are clear and realistic, the stereoscopic effect is strong, the appearance decoration effect is good, and there is a return to the original, returning to the visual effect of nature. The coating film on the surface of the sprayed aluminum profile is non-volatile in the air, does not oxidize, and does not pollute the environment. The dirt deposited on the painted surface can be restored to its original luster and appearance.
The process of wood grain transfer is described in detail below.
Process 1: Suitable for large or shaped substrates
Step 1: select the substrate that has been sprayed or electrophoresed
Step 2: Wrap the transferred substrate with wood grain thermal transfer paper, and fix the paper interface with high temperature adhesive tape to prevent the wood grain thermal transfer paper from loosening. (Note: The front side of the wood grain thermal transfer paper should be attached to the surface of the substrate to be transferred.)
Step 3: Then, cover the tubular plastic plastic bag with high temperature resistance and good sealing property on the substrate which has been wrapped by the wood grain thermal transfer paper, and then vacuum the two ends of the plastic plastic bag until the plastic plastic bag can Fully and effectively adhere to the substrate. The vacuum pressure should be appropriately adjusted according to the characteristics of the substrate to be transferred and the negative pressure that the plastic bag can withstand, usually between 0.3 and 0.8 MPa. (Note: The purpose of using plastic plastic bags is to force the wood grain thermal transfer paper that has been tightly attached to the substrate to adhere to the substrate sufficiently and effectively by negative pressure.)
The fourth step: the wrapped substrate is sent to the oven for baking. The baking temperature and the length of time should be based on the characteristics of the substrate to be transferred, the depth of the texture to be transferred and the specific properties of the oven. Make appropriate adjustments, usually the transfer temperature is 160 ~ 180 ° C, the time is 5 ~ 8 minutes
Step 5: Remove the transferred substrate from the oven, pull off the plastic bag from one end of the substrate to be transferred (Note: This plastic bag can be reused repeatedly), and tear off the thermal transfer paper. Surface cleaning
Process 2: Suitable for flat substrates
Step 1: select the substrate that has been sprayed or electrophoresed
Step 2: the front side of the wood grain thermal transfer paper and the front side of the substrate to be transferred
Step 3: the flat heat transfer machine is pressurized and heated, and the normal transfer temperature is 160-180 ° C, and the time is 18-25 seconds.
Step 4: Remove the thermal transfer paper and transfer it with PET thermal transfer film: suitable for shaped substrates
Step 5: The substrate to be transferred is wrapped with a PET thermal transfer film, and the PET thermal transfer film is sealed into a tubular bag by an ultrasonic sealing machine. (Note: The front side of the PET thermal transfer film should be attached to the surface of the substrate to be transferred.)
Step 6: Vacuuming the two ends of the tubular PET thermal transfer film bag until the PET thermal transfer film can sufficiently and effectively adhere to the substrate. The vacuum negative pressure should be adjusted according to the characteristics of the substrate to be transferred and the negative pressure that the PET thermal transfer film can withstand, usually between 0.3 and 0.8 MPa.
Step 7: The wrapped substrate is sent to the oven for baking. The baking temperature and the length of time should be based on the characteristics of the substrate to be transferred, the depth of the texture to be transferred, and the specific properties of the oven. Make appropriate adjustments, usually the transfer temperature is 160 ~ 180 ° C, the time is 5 ~ 8 minutes
Step 8: The substrate that has been transferred is taken out from the oven, and the PET thermal transfer film is removed by hand or mechanical blowing (that is, blowing the PET thermal transfer film tubular bag by blowing).
