Decorative printing paper
Decorative paper is essential for many building materials products of raw materials, such as furniture, cabinets used in low pressure plate, pressure plate, and fire panels, floor etc..
Decorative paper in the product structure is on the surface of paper below, the main decorative patterns provide and prevent bottom glue infiltration the covering effect. This paper has good covering power, impregnation and printing performance. Decorative paper requires a smooth surface, good absorbency and adaptability, the background color of the requirements of uniform colors, color bright color requirements.
Decorative paper classification
Decorative paper (titanium white), quantitative for more than 40 g/m2 from 70 to 120 g/m2.
Low pressure melamine resin impregnated paper, decorative paper (white paper, titanium) with low pressure melamine resin impregnated wood, resin content is 130% ~ 150%, and MDF for particleboard veneer, veneer without sizing, with no finishing. The wear resistance is higher than that of pre painted paper. The resin content is 70% ~ 100% for laminate flooring, the wear resistance depends on the surface of paper.
High pressure melamine resin impregnated paper, decorative paper (white paper, titanium) with high pressure melamine resin impregnated wood, resin content is 60% ~ 100%, used in the manufacture of decorative laminates (HPL), the wear resistance depends on the surface of paper.
Melamine impregnated paper
The full name of said melamine impregnated paper (Melamine-Urea-Formaldehyde Impregnated Bond Paper), also known as the "melamine" paper, is a kind of plain paper or printing decorative paper impregnated resin (melamine formaldehyde resin and urea formaldehyde resin) and dried to a certain extent, with a certain resin content and volatile content of the tape can be through hot pressing each other and glued or artificial substrate bonding.
The main indicators of melamine impregnated paper
A. glue content: the content of decorative glue film paper in solid resin, as a percentage (%) said. B.: the volatile content of volatile compounds in decorative plastic film paper (mostly water and other small molecules) content, in percentage (%) said. C. precuring: curing degree of resin in the decorative glue film paper, as a percentage (%) said.
Production process
Glue, with glue (adding curing agent and release agent), the first impregnation (melamine formaldehyde resin and urea formaldehyde resin, drying and mixing) first second impregnation (melamine formaldehyde resin), second times of drying and cooling cutting.
The development of melamine impregnated paper
The melamine impregnated paper is widely used in furniture, mostly in low pressure and short cycle, which is under high temperature and pressure, pressing a few seconds to prepare sheet. In recent years, the impregnated paper with steel plate grain produce synchronization of the flower plate, because of its good three-dimensional texture by people love. Melamine impregnated paper at low temperature and long time pressure plate forming a high light post, there has also been a lot of development company.
In view of the surface plasticity and the requirements of environmental protection, mainly formaldehyde free requirements, to the development of impregnated paper after paper surface finish ink, and then coated the surface of waterborne polyurethane resin, play a protective effect of anti scratch; waterborne polyurethane resin coating on the surface of the paper, the paper also can be coated with curly, plasticity will be better than before;