At the same time, while the material is in the process of polymerization, the its surface form that invoice, which should be in the final result. This can be either gloss or similar structure components, which apply specifically to give the material a natural wood invoice. Vacuum pressing and vacuum pressing are also called membrane pressing. This technology allows you to cover the decorative film is not all the chipboard, and only certain parts of furniture. When the vacuum pressing the heated film (or natural wood veneer, with the use of binders), tight-fitting surface of the part, just repeating its shape, which provides high quality products. Main advantage of vacuum pressing is the ability to finish complex workpiece, such as doors (fronts), kitchen units with decorative grooves. Caching is a characteristic feature of this process is application is coated on the surface coated with a glue roller coating materials in the form of a continuous fabric.
This canvas, first roll the rolls, after which the glue can harden different ways: in the cold batch press, heated korotkotaktnom press (method ‘Quickstep’), just in the foot with the load from above, etc. Used for wrapping a film based on the papers, impregnating resins which are added plasticizers (acrylic emulsion), providing an opportunity after making them pull up in a roll. Caching can be made films on the front surface of which is pre-applied lacquer, if it withstands temperature curing adhesive for this type of caching technology. Depending on the thermal effect on the adhesive coating, caching can be cold, warm and hot termokeshirovanie, using a roller or flat presses. The average weight of particleboard (in sheets, kg), the thickness, Fibreboard Fibreboard or fiberboard (another name – Hardboard) – the material obtained by hot compressing the mass, consisting of cellulose fibers, water, synthetic polymers and specialty additives. Feedstock for production of fiberboard are pulverized wood chips and flakes, and to improve the performance of Fibreboard, a wood pulp added wax, rosin (increased moisture), synthetic resins (for hardening the plate), antiseptics.
Fibreboard familiar to all those who once moved away from the cabinet walls. This is familiar to us all hardboard. Rear Most wall cabinets, bottoms of drawers, the rough to the touch and leaves a fiberboard. (In the most expensive furniture used plywood instead of mdf, but the performance characteristics, it is not much better). As with mdf, hardboard is obtained from compressed wood dust – but in the case of the fiberboard pieces of wood to steam, stove makes the process of wet pressing. That is why the “wrong side” hardboard surface texture resembles cottage cheese with a “mesh” as from a wet gauze. And so the same board are never thick fiberboard: technology does not allow. Usually one side of the fiberboard is and remains, and the others cover film (laminated or Kashira). Distinguish superhard (density 950 kg/m3), solid (850 kg/m3), semisolid (400 kg/m3), insulating and finishing (250 kg/m3) and insulating (250 kg/m3) fibreboard. mdf is very stable material to different humidity drops. For the manufacture of fibreboard used The following raw materials: wood chips technology, urea-formaldehyde resin KF-MT-15 – is a product of polycondensation of urea with formaldehyde. The resin is non-flammable, non-hazardous substance, water; ammonium chloride; paraffin. Plates are manufactured using resins and chemical materials permitted by Ministry of Health of the Russian Federation.