NAPPED ARTIFICIAL LEATHER

• Main Authors: NAKAYAMA KIMIO, TAKEGAWA TOMOKO
• Format: Patent
• Language: English; Japanese
• Published: 03.10.2019
• Subjects: DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM; DYEING OR PRINTING TEXTILES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR; LAUNDERING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL

To provide a napped artificial leather dyed with a cationic dye, which does not easily shift its color even when colored in a dark color.SOLUTION: A napped artificial leather includes a non-woven fabric and polyurethane applied inside the non-woven fabric and has a napped surface on at least one surface, wherein the non-woven fabric includes cationic dye-dyeable polyester fibers having an average fineness of 0.07-0.9 dtex, the polyurethane has a cross-linked structure and an acid group content of 0.1 mmol/g or less, is dyed with a cationic dye, and has Lvalue≤30, and the color difference series evaluation for evaluating color transfer to a polyester fabric with a load of 4 kPa, at 180°C, during 180 seconds under wet and dry conditions is of grade 3 or higher.SELECTED DRAWING: None 【課題】カチオン染料で染色された立毛調人工皮革において、濃色に着色した場合にも色移行しにくい立毛調人工皮革を提供する。【解決手段】不織布と不織布の内部に付与されたポリウレタンとを含み、少なくとも一面に立毛面を有する立毛調人工皮革であり、不織布は、平均繊度０．０７〜０．９ｄｔｅｘのカチオン染料可染性ポリエステル繊維を含み、ポリウレタンは架橋構造を有し、且つ、酸基含有量が０．１ｍｍｏｌ／ｇ以下であり、カチオン染料で染色されており、Ｌ*値≦３０であり、湿潤条件及び乾燥条件における，荷重４ｋＰａ，１８０℃，１８０秒間、の条件におけるポリエステル布帛に対する色移行性評価の色差級数判定が３級以上である立毛調人工皮革を用いる。【選択図】なし