US2009123740A1PendingUtilityA1

Surface Protection Sheet for Laser Material Processing

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Assignee: HANAKI IKKOUPriority: Jun 27, 2005Filed: Jun 27, 2006Published: May 14, 2009
Est. expiryJun 27, 2025(expired)· nominal 20-yr term from priority
Inventors:Ikkou HanakiKeiji HayashiKazuhito Okumura
B23K 26/38B23K 2103/10Y10T428/266C09J 7/241B23K 37/06B23K 2103/05B23K 26/706B23K 26/18C09J 7/255B23K 2103/04
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Claims

Abstract

The object of the present invention is provision of a surface protection sheet for laser processing to be applied to the surface on the opposite side of the laser beam irradiation face, which can protect the surface of an application object, and does not allow easy development of a dross during laser cutting processing. According to the present invention, a surface protection sheet 1 for laser processing to be applied to the surface on the opposite side of the laser beam irradiation face 2 a of a workpiece 2 during a cutting process by irradiation of a laser beam 6 on the workpiece 2 is provided, which contains a substrate layer and an adhesive layer formed on one surface of the substrate layer, wherein the substrate layer is made of a resin material having a melt viscosity measured based on JIS K7199 (1999) at 290° C. of not more than 200 Pa·s, and has a thickness of 0.01-0.12 mm.

Claims

exact text as granted — not AI-modified
1 . A surface protection sheet for laser processing to be applied to the surface on the opposite side of the laser beam irradiation face of a workpiece during a cutting process by irradiation of a laser beam on the workpiece, which comprises a substrate layer and an adhesive layer formed on one surface of the substrate layer, wherein the substrate layer is made of a resin material having a melt viscosity measured based on JIS K7199 (1999) at 290° C. of not more than 200 Pa·s, and has a thickness of 0.01-0.12 mm. 
   
   
       2 . The surface protection sheet of  claim 1 , wherein the resin material comprises a polyester-based resin. 
   
   
       3 . The surface protection sheet of  claim 2 , wherein the polyester-based resin is a poly(ethylene terephthalate) resin. 
   
   
       4 . The surface protection sheet of  claim 1 , wherein the resin material comprises a polyolefin-based resin. 
   
   
       5 . The surface protection sheet of any of  claim 1 , wherein the workpiece is a metal plate. 
   
   
       6 . The surface protection sheet of  claim 5 , wherein the metal plate is a stainless plate. 
   
   
       7 . The surface protection sheet of  claim 5 , wherein the metal plate is an aluminum plate.

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