ARTIFICIAL LEATHER

Provided is artificial leather which has excellent clarity of emboss patterns, and which does not use organic solvents during the production process and thus has a low environmental impact. The artificial leather comprises a nonwoven fabric made of ultrafine fibers having a mean single fiber diamete...

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Bibliographische Detailangaben
Hauptverfasser:	Sakata, Keiichiro, Yamaguchi, Hidehiro, Hatanaka, Aki, Kawai, Kazuya
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM DYEING OR PRINTING TEXTILES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR LAUNDERING TEXTILES TREATMENT OF TEXTILES OR THE LIKE
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Beschreibung
Zusammenfassung:	Provided is artificial leather which has excellent clarity of emboss patterns, and which does not use organic solvents during the production process and thus has a low environmental impact. The artificial leather comprises a nonwoven fabric made of ultrafine fibers having a mean single fiber diameter of 0.3 µm to 7 µm, and water-dispersed polyurethane, wherein when the free induction decay (FID) signal in pulse NMR (solid echo method, proton observation, measuring temperature: 50°C) is fitted to two components: the S component (Gaussian component) and L component (Lorentz component), the spin-spin relaxation time Tl of the L component is 500 µsec to 800 µsec and the L component fraction Cl is 25% or greater and less than 55%.