公开(公告)号：US20220152994A1

公开(公告)日：2022-05-19

申请号：US17665383

申请日：2022-02-04

申请人： THE CLOROX COMPANY

发明人： Nikhil P. DANI ,  Joerg HENDRIX ,  Scott WOOD ,  Hubert CHAN ,  Mark PSZCZOLKOWSKI ,  Daniela FRITTER

IPC分类号： B32B23/02 ,  B32B5/02 ,  B32B27/32 ,  B32B27/12 ,  C11D17/04 ,  C11D3/30 ,  B08B1/00 ,  B32B7/12 ,  B32B27/10 ,  B32B29/00 ,  D21F11/00 ,  D21F11/14 ,  D21H13/14 ,  D21H27/00 ,  D21H27/02 ,  D21H27/36

摘要： Methods for forming multi-layer substrates including top and bottom surface layers and a melt softened thermoplastic material layer between the exterior surface layers, where the thermoplastic material includes polyethylene or has a tan delta value of 0.2 to 0.4 within the temperature range of 100° F.-350° F. The 3 (or more) layers are assembled, and heated, melt softening the thermoplastic material, causing bonding of the thermoplastic layer to the exterior surface layers. A cleaning composition may be loaded onto the multi-layer substrate, where a fluid pathway through the melted thermoplastic material allows the cleaning composition to travel between the surface layers. Adhesion between the surface layers and the thermoplastic layer is provided by the thermoplastic material itself, which bonds to groups of fibers in the surface layers. The process does not require chemical adhesives, any processing water, drying, or the like, so as to be possible with low capital investment.