摘要:
A sheet structure obtained by separately producing an artificial leather base material and a leather-like skin, and combining the two together in simple equipment. An artificial leather having air permeability is produced as follows. A film material is filled in concavities of a transfer sheet having a convexo-concave shape reverse to a leather-like convexo-concave surface to form a perforated film layer. On the perforated film layer is formed a porous layer formed of open-cell foam. The porous layer is formed by coating an aqueous polyurethane dispersion solution containing base resin, which is foamed through agitation, followed by drying. The resultant sheet structure is thermally laminated on a desired base material. The base material is composed of a nonwoven fabric, a woven fabric, a knit, or the like, impregnated with foamed polyurethane as necessary. A thermally-fused open-cell foamed layer may additionally be formed on the porous layer to enhance flexibility and peeling strength, Lastly, the transfer sheet is peeled off.
摘要:
A sheet structure obtained by separately producing an artificial leather base material and a leather-like skin, and combining the two together in simple equipment. An artificial leather having air permeability is produced as follows. A film material is filled in concavities of a transfer sheet having a convexo-concave shape reverse to a leather-like convexo-concave surface to form a perforated film layer. On the perforated film layer is formed a porous layer formed of open-cell foam. The porous layer is formed by coating an aqueous polyurethane dispersion solution containing base resin, which is foamed through agitation, followed by drying. The resultant sheet structure is thermally laminated on a desired base material. The base material is composed of a nonwoven fabric, a woven fabric, a knit, or the like, impregnated with foamed polyurethane as necessary. A thermally-fused open-cell foamed layer may additionally be formed on the porous layer to enhance flexibility and peeling strength, Lastly, the transfer sheet is peeled off.
摘要:
A sheet structural material (3) has a supporting fabric layer (1) and a porous layer (2) having 20 to 250 µm diameter open cells formed by applying and drying a foamed material containing at least a base resin and a filler. A leather-like sheet material (10) is obtained by pressing onto the porous layer the concavo-convex surface of a transfer paper (9) to which a film material (15) has been applied to occupy concave portions (14) of like surface, thereby to emboss the porous layer and transfer the film material as a layer (5) onto the convex portions. The resulting leather-like sheet material has an air permeability of 3 to 13 cm 3 /cm 2 /sec.
摘要:
A sheet structural material (3) has a supporting fabric layer (1) and a porous layer (2) having 20 to 250 µm diameter open cells formed by applying and drying a foamed material containing at least a base resin and a filler. A leather-like sheet material (10) is obtained by pressing onto the porous layer the concavo-convex surface of a transfer paper (9) to which a film material (15) has been applied to occupy concave portions (14) of like surface, thereby to emboss the porous layer and transfer the film material as a layer (5) onto the convex portions. The resulting leather-like sheet material has an air permeability of 3 to 13 cm 3 /cm 2 /sec.
摘要翻译:片状结构材料(3)具有支撑织物层(1)和具有20至250μm直径的开孔的多孔层(2),其通过施加和干燥至少含有基础树脂和填料的泡沫材料而形成。 通过在多孔层上压制已经涂覆有薄膜材料(15)的转印纸(9)的凹凸表面以形成类似表面的凹部(14),从而获得皮革状片材(10) 从而压印多孔层并将膜材料作为层(5)转移到凸部上。 得到的皮革状片材的透气度为3〜13cm 3 / cm 2 / sec。