the solution chosen better

After preparing the solution chosen better dye (pigment), it needs to be formulated into a solution, it is easy to use. Better pigment dispersion, dyeing higher efficiency, better uniformity. To prepare a solution, we must first consider the solvent. Of course, water is the best solvent, but a lot of dye (pigment) poorly water soluble, even those well soluble dye dissolved in the water becomes far not meet the requirements. If you tune into a very dilute solution of transport and use have caused pain, especially when incorporated using remove crayon stain composite decking the internal gum, gum to reduce the concentration change. Therefore, we must choose a good solvent or mixture of solvents, their requirements are: the amount as small as possible, environmental protection, safety, price is acceptable. If, like many cationic dyes and basic dyes dissolved in glacial acetic acid, it is bound to bring a series of negative impacts, first urea-formaldehyde glue it is incompatible. For example, after a light green with glacial acetic acid dissolved, according to the amount of urea-formaldehyde glue mixed into fiberboard with its adaptation of only one hour in the summer, this is unacceptable.

Improved performance of any kind of dye (pigment) can not fully meet the above requirements, but can be of various additives to adjust and improve. Textile Auxiliaries already formed a specialized industry, in the development of artificial coloring agents must rely on experience during the course of the textile industry. However, the above has been pointed out, plywood production has its own particularities, some special conditions are rare in the textile industry. In addition to those mentioned above, there are other special restrictions. Wood-based panel production pressing temperature is a critical process parameters, generally above 170-180 ℃, but modern presses in quick succession maximum hot temperature up to 240 ℃.

Due to the high temperature limit hot conditions, many in the industry believe that very good dyeing dye, and in wood-based panels (including decorative paper) production can not be used. Of course, the hot pressing process, the board inside the core layer, in particular temperature may exceed 100 ℃ for a short time, but the surface is considered a harsh, high-temperature resistance due mainly the many dyes cause surface discoloration This best platform deck wholesale South Africa increases the difficulty of sanding and sanding loss, but also affect the appearance of the surface color. However, it is confused regret is that experience in the textile industry to improve the thermal stability of the dye can provide is limited.