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Leather with a nubuck-like surface

A technology of leather and leather fiber, applied in the field of leather, to improve the color fastness to abrasion and excellent fire resistance.

Inactive Publication Date: 2009-06-10
BASF AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All these variants were not implemented due to the disadvantages

Method used

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  • Leather with a nubuck-like surface
  • Leather with a nubuck-like surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The drawing shows a leather 1 whose finely ground grain side is equipped with a thin layer 2 of plastic material consisting of a mixture of organic polymers with elastomeric properties and inorganic polymers with elastomer-like properties, And it contains pigments, so that the color of the plastic material layer 2 can match the color of the leather surface. The plastic material layer 2 contains microscopic hollow spheres 3 which are partly embedded in the plastic material layer 2 and partially surrounded by a sheath 4 consisting of the material of the plastic material layer 2 , so that there are formed on the surface of the plastic material layer 2 raised, these bumps create a nubuck effect. The sheath 4 is so thin that it is transparent in the color that the layer of plastic material 2 has through its coloring. The hollow microspheres 3 are locally closely adjacent to one another, but at some points there are gaps between the hollow microspheres 3 , which have continu...

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Abstract

The invention relates to a type of leather (1) provided with a thin plastic layer (2) on the surface thereof. According to the invention, said plastic layer (2) has a thickness of less than 0.09 mm and consists of a mixture of organic polymers having elastomer properties and inorganic polymers having elastomer-type properties. The plastic layer is provided with hollow microspheres, some of which, together with a sheathing consisting of the plastic layer, form a raised part therein, very fine leather fibres protruding from the leather surface projecting from the plastic layer between said hollow microspheres. The density of the plastic layer (2) is below 0.75 g / cm, and the Shore hardness amounts to less than 58 Shore A.

Description

technical field [0001] The invention relates to a leather on the surface of which is provided a layer of plastic material having an appearance similar to nubuck. Background technique [0002] True nubuck leather is leather that has been sanded or buffed on the grain side. This nubuck leather has a pleasing feel in a wide temperature range, so it does not feel cold at low temperatures and does not feel hot at high temperatures, so it is not necessary to use this leather for car seats, for example. Seat heating is required, and this nubuck exhibits a maximum of comfort and aesthetics. But the big disadvantage of this nubuck leather is that its good-looking appearance only lasts for a short time, since the leather surface gets dirty very quickly, especially under the influence of bad body odors, body creams, etc. Then it becomes dirty and old, which also causes the color of the surface to change. Headrests made of nubuck leather, for example in motor vehicle seats, therefore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C14C11/00
CPCC09D175/04C14C11/006C08L2666/04C08L83/00
Inventor P·谢弗
Owner BASF AG