公开(公告)号：US5965226A

公开(公告)日：1999-10-12

申请号：US814560

申请日：1997-03-11

申请人： Kenneth J. Muschelewicz ,  Edward J. Koinskie, Jr.

发明人： Kenneth J. Muschelewicz ,  Edward J. Koinskie, Jr.

IPC分类号： B32B7/12 ,  B32B27/10 ,  B32B27/32 ,  B32B27/36

CPC分类号： B32B7/12 ,  B32B37/1284 ,  B32B2310/14 ,  B32B2317/12 ,  B32B38/0008 ,  Y10S428/91 ,  Y10T428/149 ,  Y10T428/1495 ,  Y10T428/265 ,  Y10T428/266 ,  Y10T428/2848 ,  Y10T428/3179 ,  Y10T428/31797 ,  Y10T428/31895

摘要： A multi-layered sheet product is provided which is useful as a release backing for pressure sensitive adhesive labels or as a liner for foodstuff containers and trays. The sheet product has a polymeric layer and a cellulosic layer laminated together and having an adhesive layer therebetween. A substantially uniform silicone coating is provided on a surface of the polymeric layer opposite the surface adhered to the cellulosic layer. The polymeric layer surface having the silicone coating thereon constitutes a smooth surface which, when the product is used as a release backing, minimizes distortion of the adhesive surface of an adhesive label upon separation of the label from the sheet product, an important feature for use with transparent labels. When used as a release liner for foodstuff containers and trays, the polymeric layer prevents absorption by the cellulosic layer of water from the foodstuff. Use of an oriented polyester as the polymeric layer, provides excellent tear resistance, dimensional stability and stiffness in an extremely thin laminated sheet product.

摘要翻译： 提供多层片材产品，其可用作压敏粘合剂标签的剥离背衬或用作食品容器和托盘的衬垫。 片材产品具有层压在一起并且其间具有粘合剂层的聚合物层和纤维素层。 在聚合物层的与粘附到纤维素层的表面相对的表面上提供基本均匀的硅氧烷涂层。 具有硅酮涂层的聚合物层表面构成光滑的表面，当产品用作释放背衬时，将标签与片材产品分离时，使粘合剂标签的粘合剂表面的变形最小化是使用的重要特征 带有透明标签。 当用作食品容器和托盘的隔离衬垫时，聚合物层防止纤维素层从食品中吸收。 使用取向聚酯作为聚合物层，在非常薄的层压片材产品中提供优异的抗撕裂性，尺寸稳定性和刚度。