Abstract:
A method of an emboss pattern process has steps of transferring an emboss pattern onto a thermoplastic resin sheet by using an emboss patterning roller; lustering the opposite face of the embossed face of the thermoplastic resin sheet by using a lustering means having a mirror face member; and peeling the thermoplastic resin sheet from the emboss patterning roller at a lower temperature than a temperature for transferring the emboss pattern. The emboss patterning roller has a roller body, having a face embossed with the pattern, and sealing rings attached on each side face of the roller body, in which the roller body and the sealing ring has a passage for flowing a cooling medium from one sealing ring through the roller body to the other sealing ring.
Abstract:
Processes are provided for formation of complex shapes by embossing of a sheet of flexible graphite material. In one approach, a sheet of material is provided with a variable resin concentration across its width, and the position of the variable resin concentration is correlated with the position of embossing features which will result in thinner areas in the embossed articles. In a second approach, recesses are provided in the embossing rollers to accommodate material flow during embossing. These recesses result in protrusions formed on the articles, which protrusions must then be removed in a machining operation.
Abstract:
An emboss pattern processing apparatus for transferring an emboss pattern onto a thermoplastic resin sheet includes an emboss patterning roller and a lustering device having a mirror face member. The emboss patterning roller includes a roller body having a face embossed with the pattern and sealing rings attached on each side face of the roller body. The roller body and the sealing rings have a passage for flowing a cooling medium from one sealing ring through the roller body to the other sealing ring.
Abstract:
An automatic embossing device for plastic floor tile comprises a main frame, a pressing wheel module, a tape supply control wheel module, a position mark sensing module, a tape tension-balancing module, and a tape supply module. When the pressing process for plastic floor tile is performed, the rotation speed of the pressing wheel is first set. The rotation speed of the tape supply control wheel is then set. A zero-point position of rotation angle on the pressing wheel is randomly set. A computer is used to partition and determine a plurality of angle positions; The computer is used to compare the signal of the angle position to that of the position mark on the printed tape to obtain a time difference when the pressing process starts. A distance difference is obtained from the time difference. The computer is used to calculate out the speed compensation according to the rotation speed of the tape supply, control wheel and to adjust immediately the rotation speed of the tape supply control wheel. The angle position and the position mark on the printed tape can thus be kept synchronous at any time. The shift between the pattern on the pressing wheel and the printed pattern on the tape is input to the computer. The computer uses the shift to adjust automatically the zero-point position of rotation angle on the pressing wheel. The pattern on the pressing wheel overlaps the printed pattern on the tape. Normal position adjustment process is then performed. The rotation is thus automatic and continuous.
Abstract:
A method of utilizing a single engraved embossing roll to emboss different expanses of material with different patterns. The single engraved embossing roll has at least two projections projecting therefrom. A first of the projections projects to a greater height from the roll than a second of the projections. In another aspect, the invention encompasses an apparatus for embossing different expanses of material with different patterns. The apparatus includes an engraved surface having at least two projections projecting therefrom. A first of the projections projects to a greater height than a second of the projections. The apparatus also includes a backing surface configured to receive the projections of the engraved surface. The backing surface and engraved surface are together configured to receive an expanse of material between them. The apparatus further includes a displacement mechanism configured to move at least one of the engraved surface and the backing surface relative to the other of the engraved surface and the backing surface.
Abstract:
Embossed textured films are made by feeding a thin thermoplastic polymer barrier film through the nip of a bonding roll assembly having a patterned roll and an anvil roll rotating at different circumferential speeds which differ by 5% to 200%. The bond pattern is imparted to the film as well as additional texture due to the differential speeds of the rollers thereby creating an embossed, textured barrier film having improved hand and a hydrohead in excess of about 30 mbar.