摘要:
An article which has utility as a surface covering for materials such as resilient flooring, furniture, walls, ceilings, counter tops and the like is produced by aligning and embedding a plurality of hollow fibers or metallic fibers on or near the surface of a translucent medium. The article is typically in the form of a film, sheet, or board.
摘要:
A low-cost mineral-fiber board having a natural-appearing highly textured surface, and improved uniformity of density is produced by coating the wet-textured surface of a perlite-containing mineral-fiber mat to a depth at least equal to the peak height of the texture with a layer of silicone-coated perlite prior to press-forming the board. The perlite layer fills the voids on the textured surface and provides a buffer layer between the board and press roll, enabling uniform pressure to be applied to the board without disturbing the textured surface. The top perlite layer may be removed by vacuum units before or after drying the board.
摘要:
A flat ribbon-type heater is subjected to convection loss of heat when air moves across the ribbon heater. This convection loss is minimized by providing a wall structure on either side of the ribbon heater. The wall height to ribbon width must be controlled to maximize the output of radiant energy output and minimized convection loss. Maximum efficiency occurs when the wall height(h) is equal to one half the width(w) of the ribbon heater.Baffles may be placed along the length of the ribbon heater to minimize air current flow along the ribbon heater.
摘要:
A process of forming an embossed surface covering is disclosed. The process comprises forming a crosslinkable foam on a backing, depositing an activator composition to initiate cross-linking on at least a portion of the crosslinkable foam, and heating the resulting crosslinkable foam-containing sheet to a temperature sufficient to crosslink the portions of the foam affected by the deposition of activator composition and melt the portions of the foam not affected by the deposition of activator composition.
摘要:
A method of forming an embossed decorative surface covering having a backing material and a plastic-type surface material. A layer of liquid plastic-type material is coated onto a strippable carrier to form a composite. This composite is heated by bringing the uncoated side of the strippable carrier into contact with a heated embossing roll. That portion of the liquid plastic-type material in heat contact with the surface of the embossing roll through the strippable carrier becomes non-fluid. The plastic-type material is bonded to a backing material and is fused in a pattern that duplicates the pattern of the embossing roll as the strippable carrier, plastic-type material, and backing material pass through the nip between the heated embossing roll and a back-up roll. The strippable carrier is then removed from the embossed decorative surface covering.
摘要:
A method of embossing wood composition board is disclosed. This method employs a water-borne base-coat composition which facilitates fine line embossing of the filled surface of wood composition board in imitation of fine grain woods, such as, for example, pecan and prima vera.
摘要:
The invention is a process for forming a fiberboard structure with a rough textured surface on a conventional Oliver forming machine. The machine is operated in such a manner as to prevent the dispersion of the fibers in the slurry and to permit the fibers to build up in a lumpy and irregular manner on the rotary vacuum cylinder of the Oliver machine. Also the vacuum of the rotating clyinder is on a low vacuum level of 3-5 inches of mercury and the slurry level is maintained at point 5 inches below the center line of the rotating cylinder. There is thereby formed a fiberboard structure which has a very rough surface texture.
摘要:
Reticulated polyvinyl chloride plastisol foams which can be produced using mechanical frothing techniques are disclosed. These reticulated foams are sufficiently open or porous to facilitate screen printing with plastisol inks to produce thru color, decorative, cushioned floor coverings.
摘要:
An apparatus for measuring an exothermic reaction in a thin film of a photopolymerizable, ethylenically-unsaturated mass, which apparatus comprises a thin foil differential thermocouple means, a pore means adjacent to and mounted above the thermocouple means, a perforated plate means positioned above the pore means and an ultraviolet light source means positioned above the plate means is disclosed.
摘要:
The process for making a cellular surface covering having a multi-level embossed decorative wear surface by applying to a porous substrate a plurality of thermoplastic resinous inks developed from thermoplastic binders having different molecular weights and therefore different melt viscosities, the inks and substrate comprising a composite structure which also includes a blowing agent. The blowing agent may be either in the substrate or in the inks applied thereto. Upon final heating to fuse and foam all the resinous material of this structure, the metal viscosity differences of the resins in the inks provide varying degrees of physical resistance to expansion of the total system in the inked areas, thus producing multi-level design areas on the final product.