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Decorative laminate
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Decorative laminate
Decorative laminates are laminated products primarily used as furniture surface materials or wall paneling. It can be manufactured as either high- or low-pressure laminate, with the two processes not much different from each other except for the pressure applied in the pressing process. Also, laminate can be produced either in batches or in a continuous process; the latter is called continuous pressure laminate (CPL).
According to McGraw-Hill Dictionary of Architecture & Construction, high-pressure laminates consists of laminates "molded and cured at pressures not lower than 1,000 psi (70 kg/cm2) and more commonly in the range of 1,200 to 2,000 psi (80 to 140 kg/cm2)."
HPL is made of resin impregnated cellulose layers, which are consolidated under heat and high pressure. The various layers are described below:
Trade names include Formica, Arborite, Greenlam, Wilsonart, GW-HPL, Micarta and Trespa.
After the Kraft papers are impregnated with the resins, the three layers of paper/resin are placed into a press which simultaneously applies heat (120 °C) and pressure (>70 bars). The pressing operation allows the thermoset resins to flow into the paper, then subsequently cure into a consolidated sheet with a density greater than 1.35 g/cm3 (84 lb/cu ft). During the press cycle, the decorative surface can also be cured while in contact with a textured surface to create one of many different surface finishes.
HPL consists of more than 60 to 70% Kraft paper, with the remaining 30 to 40% a combination of phenol-formaldehyde resin for the core layers mostly, and melamine-formaldehyde resin for the surface layer. Both resins belong to a class of thermosetting resins which crosslink during the press cycle creating irreversible chemical bonds that produce a nonreactive, stable material with characteristics different and superior to those of the component parts.
HPL can be produced using both continuous and discontinuous (batch) manufacturing processes. HPLs are supplied in sheet form, or compact form, in a variety of sizes, thicknesses and surface finishes.
Low-pressure laminate is defined as "a plastic laminate molded and cured at pressures in general of 400 pounds per square inch (27 atm; 2.8 MPa)".
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Decorative laminate
Decorative laminates are laminated products primarily used as furniture surface materials or wall paneling. It can be manufactured as either high- or low-pressure laminate, with the two processes not much different from each other except for the pressure applied in the pressing process. Also, laminate can be produced either in batches or in a continuous process; the latter is called continuous pressure laminate (CPL).
According to McGraw-Hill Dictionary of Architecture & Construction, high-pressure laminates consists of laminates "molded and cured at pressures not lower than 1,000 psi (70 kg/cm2) and more commonly in the range of 1,200 to 2,000 psi (80 to 140 kg/cm2)."
HPL is made of resin impregnated cellulose layers, which are consolidated under heat and high pressure. The various layers are described below:
Trade names include Formica, Arborite, Greenlam, Wilsonart, GW-HPL, Micarta and Trespa.
After the Kraft papers are impregnated with the resins, the three layers of paper/resin are placed into a press which simultaneously applies heat (120 °C) and pressure (>70 bars). The pressing operation allows the thermoset resins to flow into the paper, then subsequently cure into a consolidated sheet with a density greater than 1.35 g/cm3 (84 lb/cu ft). During the press cycle, the decorative surface can also be cured while in contact with a textured surface to create one of many different surface finishes.
HPL consists of more than 60 to 70% Kraft paper, with the remaining 30 to 40% a combination of phenol-formaldehyde resin for the core layers mostly, and melamine-formaldehyde resin for the surface layer. Both resins belong to a class of thermosetting resins which crosslink during the press cycle creating irreversible chemical bonds that produce a nonreactive, stable material with characteristics different and superior to those of the component parts.
HPL can be produced using both continuous and discontinuous (batch) manufacturing processes. HPLs are supplied in sheet form, or compact form, in a variety of sizes, thicknesses and surface finishes.
Low-pressure laminate is defined as "a plastic laminate molded and cured at pressures in general of 400 pounds per square inch (27 atm; 2.8 MPa)".
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