摘要:
The present invention relates to a composite sheet for mounting a workpiece and a method for making the same. The composite sheet includes a buffer layer and an adsorption layer. The buffer layer has a plurality of continuous pores. The adsorption layer is located on the buffer layer for adsorbing a workpiece, and the compression ratio of the buffer layer is higher than that of the adsorption layer. Thereby, due to low hardness, good adsorption effect, and high compression ratio, the composite sheet of the present invention has good buffer effect.
摘要:
A method is provided for making extensible artificial leather. In the method, a substrate is supported on in-extensible woven cloth and locating the substrate firmly on a coating machine. Foamy highly solid-containing water-based polyurethane resin is coated on the substrate for forming a middle layer with tiny open cells. The middle layer is dried and the woven cloth is removed from the substrate. A superficial layer of polyurethane is attached to the middle layer in a dry process so that the extensible artificial leather is made with excellent strength against peeling, abrasion and dissolution.
摘要:
A method for making a macromolecular laminate is disclosed. Firstly, a high solid-content polyurethane resin is prepared. The high solid-content polyurethane resin has a solid content higher than 80% by weight and a viscosity from 20000 to 60000 cps/30° C. The high solid-content polyurethane resin is liquid at the room temperature. The high solid-content polyurethane resin is mixed with additives to form a first type of polyurethane resin compound with a solid content higher than 50% by weight and a viscosity from 20000 to 60000 cps/30° C. The first type of polyurethane resin compound is liquid at room temperature and has a pot life of at least three hours at room temperature. The first type of polyurethane resin compound is coated on a releasing paper to make a main layer. Then, the releasing paper is removed from the main layer to make a laminate.
摘要:
The present invention relates to a luminary material comprising a substrate; a luminary layer formed on a surface of the substrate; and a surface layer comprising a first portion and a second portion, wherein the first portion allows stronger light to be emitted from the luminary layer than the second portion. The luminary material according to the invention exhibits various colors, patterns and/or textures formed on the surface. Therefore, the luminary material is qualified as a decorative material in the light. A method for manufacturing the luminary material is also provided.
摘要:
The present invention relates to a method of producing artificial leather, comprising steps of: (a) providing a substrate; (b) providing a foamed polyurethane dispersion, wherein the polyurethane dispersion has a solid content of about 40% to about 60% and a void content of about 0.01% to about 80%; (c) coating the substrate with a layer of the foamed polyurethane dispersion; and (d) drying the substrate and the layer of the foamed polyurethane dispersion for obtaining the artificial leather. Artificial leather is also provided in the present invention.
摘要:
The present invention relates to a sheet for mounting a polishing workpiece. The sheet comprises a substrate and a surface layer. The substrate has a surface. The surface layer is located on the surface of the substrate, with no hole structure existing in the interior thereof, and has a plurality of through holes. Accordingly, when the polishing workpiece contacts the surface layer, the air therebetween is vented to the substrate via the through holes and then is easily vented out, without the phenomenon of air wrapping, which increases the adsorption force between the polishing workpiece and the sheet, thereby improving the polishing effect of the polishing workpiece.
摘要:
Artificial leather includes a substrate and a coating of a first elastomeric resin provided on the substrate. The substrate contains a second elastomeric resin evenly spread in the substrate. The first elastomeric resin forming the coating is identical to the second elastomeric resin in the substrate. The substrate includes a first porous structure. The coating includes a second porous structure contiguous to the first porous structure of the substrate. Preferably, the substrate has a density larger than that of the coating.
摘要:
A method for producing an environmental friendly artificial leather product includes coating a first solvent-free elastomer resin composition on a releasing paper to form a top layer, coating a polyurethane resin composition containing more than 50% by weight solid content on the top layer to form an intermediate layer, coating a second solvent-free elastomer resin composition on the intermediate layer to form an adhesive layer, and finally applying a substrate on the adhesive layer, and peeling the releasing paper.
摘要:
A method for manufacturing an artificial leather comprises the following steps. First, ultramicrofiber-forming fibers having an islands-in-sea type cross-sectional configuration are formed by blend spinning or conjugate spinning. Secondly, a porous reinforcement sheet of low compactness is formed from polyester, polyurethane or polyolefin by spunbonding, meltblowing or calendering. Next, the ultramicrofibers are entangled with the reinforcement sheet by needle punching or spunlace to form the complex reinforced ultramicrofiber nonwoven fabric. The nonwoven is impregnated or coated with an elastomer resin composition, and then subjected to a coagulating process, a washing process, a drying process and a removing process to produce a semi-product leather. Finally, the semi-product leather is then processed to produce the artificial leather.
摘要:
Elastic artificial leather is disclosed. There are provided two polymers that include different crystallization degrees but similar fluidities. Fibers are made of the polymers. Non-woven cloth is made of the fibers. The non-woven cloth is soaked in water at 50 to 90° C. Thus, the fibers curl so that the non-woven cloth is elastic. The non-woven cloth is soaked in PU resin, washed and dried. Alternatively, the non-woven cloth includes, in addition to the fibers (“first type of fibers”), additional fibers (“second type of fibers”) that can be dissolved in water, alkali or solvent. The non-woven cloth is soaked in PU resin, washed and dried. The second type of fibers is removed from the non-woven cloth and the PU resin in order to leave elongated spaces. Thus, the artificial leather is elastic.