OKIA OPTICAL CO., LTD.
|OKIA OPTICAL CO., LTD. Patent applications|
|Patent application number||Title||Published|
|20150219921||THERMOPLASTIC LAMINATE, DECORATIVE PART FOR EYEWEAR AND PROCESS OF PREPARATION THEREOF - The present invention relates to a thermoplastic laminate for an eyewear, a decorative part comprising the thermoplastic laminate and a preparation process therefore. In particular, during the preparation of the laminate, a high frequency welding machine is used for bonding thermoplastic layers. The present invention uses a high frequency welding machine for the instant welding of the thermoplastic layers. Good bonding strength exists between different layers. Further, the patterns of the core layer are intact, and have high-definition images. The patterns are located in the core layer, not affected by external environmental factors, and not easily abraded. Further, multiple surfaces of the part for an eyewear have patterns, increasing the beautiful appearance of the part for an eyewear, and meeting the requirements of customers to the largest extent.||08-06-2015|
|20100314034||LAMINATE FOR EYEGLASS FRAME WITH EMBEDDED DESIGN PATTERN AND MANUFACTURING METHOD THEREOF - A laminate with internal decorative pattern for eyeglass frames, formed by the application of heat and pressure comprising: a plurality of core layers of thermoplastic sheets printed with patterns by transfer printing; a first overlay layer of thermoplastic sheet; and a second overlay layer of thermoplastic sheet; wherein the core layers are sandwiched between the first overlay layer and the second overlay layer; the core layers may further enclose three dimensional articles or fluids for decorative or functional purposes. The process for manufacturing the laminate includes: preparing a plurality of core layers, a first overlay layer and a second overlay layer from thermoplastic sheets; printing patterns on the core layers by transfer printing; layering from top to bottom the first overlay layer, the core layers and second overlay layer; applying to the layer of sheets a temperature of 0° C. to 300° C. and a starting pressure of 0 atm to bond the layers together; and removing from the heat and pressure a laminate; wherein the process for manufacturing can further include steps of creating cavity in the core layers to enclose the three dimensional articles or fluids.||12-16-2010|
Patent applications by OKIA OPTICAL CO., LTD.