Ground sheet for use under picnic cloth comprises impermeable top sheet, intermediate cushioning layer and several lower layers, e.g. of paper, each of which can be removed and disposed of after use, when soiled by contact with ground

摘要

The ground sheet for use under a picnic cloth comprises an impermeable top sheet (5, 6), an intermediate cushioning layer and several lower layers, e.g. of paper. Each of these can be removed and disposed of after use, when they have been soiled by contact with the ground.