| 摘要 |
PURPOSE:To obtain a bag material for an individually packaged detergent by coating a water-permeable fabric substrate composed of water-insoluble fiber with a liquid water-soluble resin, drying the coating by heating and forming a resin layer. CONSTITUTION:A water-permeable fabric substrate (e.g. a nonwoven fabric composed of cellulosic fiber) 22 composed of water-insoluble fiber is withdrawn from a roll 42, coated with a liquid water-soluble resin using a roller 58, directly passed through a heating zone between a rotating type heat drum 52 equipped with a heat-resistant rubber and a cover 54 and dried by heating to solidify the aforementioned resin and afford a sheet 20. Furthermore, a bag 12 is formed from seals 20 and 30 composed of substrates 22 and 32 and water-soluble resin layers 26 and 36. A prescribed amount of a powdery detergent 14 is placed in the bag 12 and sealed at sealing parts 16 to provide a bag material 10 for an individually packaged detergent used in, e.g. fully automatic washing machines. |
