Leather capable of changing surface color with temperature and preparation method thereof

A temperature-dependent leather technology, applied in the field of leather and its preparation, can solve the problems of not being able to remind users, reduce the user's driving experience, etc., to improve the grade and product aesthetics, improve operation safety, ensure integrity and safety. The effect of uniformity

Pending Publication Date: 2020-03-06
BENECKE CHANGSHUN AUTO TRIMZHANGJIAGANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the traditional vehicle seat has a beautiful appearance and improves the quality of the vehicle, the disadvanta...

Method used

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  • Leather capable of changing surface color with temperature and preparation method thereof
  • Leather capable of changing surface color with temperature and preparation method thereof
  • Leather capable of changing surface color with temperature and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Preparation of leather with changing surface color with temperature:

[0044] Mixing: according to the various material ratios shown in Table 1 below, the raw materials of the leather substrate were mixed by conventional stirring, and the slurry of the PVC dense layer and the slurry of the PVC foam layer were prepared respectively.

[0045] Coating: Send the release paper on the coating machine, coat the slurry of the PVC dense layer on the release paper, and bake in an oven at 170°C for 90 seconds; then coat the PVC foam layer on the PVC dense layer The slurry is baked in an oven at 170°C for 90 seconds; glue is applied to the surface of the PVC foam layer, and the base cloth is compounded. Then dry the PVC leather compounded with the base cloth in an oven at 180° C. for 3 minutes to complete the foaming of the PVC foam layer and the overall plasticization of the PVC leather to obtain the final required hardness. Finally, the release paper is torn off, thereby obtaini...

Embodiment 2

[0055] Leather was prepared according to the formulations of each layer in Table 1, and the preparation method was the same as in Example 1.

[0056] The layer structure of the thus obtained PVC leather is divided into successively: a paint layer, a PVC dense layer, a PVC foam layer and a base cloth layer. In this case, the paint layer comprises a first paint layer and a partial functional layer lying thereon. The functional layer that can change color is partially set on the leather surface in the form of LOGO. Wherein, the thickness of the PVC foam layer and the PVC dense layer can be adjusted freely, usually 0.5mm-2.0mm. The total thickness of the paint layer including the first paint layer and the functional layer is about 5 μm-20 μm.

[0057] The obtained PVC leather is used as a fabric for motor vehicle seats after being cut.

[0058] Most of the reversible inorganic heat-sensitive color-changing materials used in this example are metals and metal halides. Under the a...

Embodiment 3

[0061] Leather was prepared according to the formulations of each layer in Table 1, and the preparation method was the same as in Example 1.

[0062] The layer structure of the thus obtained PVC leather is divided into successively: a paint layer, a PVC dense layer, a PVC foam layer and a base cloth layer. In this case, the paint layer comprises a first paint layer and a partial functional layer lying thereon. The functional layer that can change color is partially set on the leather surface in the form of LOGO. Wherein, the thickness of the PVC foam layer and the PVC dense layer can be adjusted freely, usually 0.5mm-2.0mm. The total thickness of the paint layer including the first paint layer and the functional layer is about 5 μm-20 μm.

[0063] The obtained PVC leather is used as a fabric for motor vehicle seats after being cut.

[0064] The liquid crystal molecule of the cholesteric liquid crystal state discoloration agent that adopts in this embodiment has unique molec...

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Abstract

The invention relates to a leather changing surface color with temperature, which at least comprises a leather base layer and a paint layer; the paint layer at least comprises a first paint layer thatcoats the leather base layer and a functional layer that coats the first paint layer, the functional layer has a reversible thermochromic agent, and the color of the functional layer changes when thetemperature of the functional layer reaches 30 to 80 DEG C. The invention also relates to a preparation method of the leather. The leather is applied to surface materials, such as automobile seats; when the temperature of the leather reaches a certain value in the range from 30 to 80 DEG C, the color of the functional layer changes to remind a user that the current leather temperature is too high.

Description

technical field [0001] The invention relates to a leather whose surface color changes with temperature and a preparation method thereof. Background technique [0002] With the improvement of modernization, people have higher and higher requirements for the fabrics of motor vehicle interiors, especially seats. For example, patent applications CN 107190521 A and CN 105316954 A respectively disclose low-odor PVC artificial leather and multifunctional aromatic environment-friendly PVC leather and their preparation methods. [0003] In addition, in the field of leather, patent application CN 1594600 A discloses a leather whose surface color can be changed and its manufacturing process, wherein the outer surface of the leather is entirely coated with a color-changing material layer. First mix the color-changing dye or pigment, polyurethane and solvent; then attach the mixture of color-changing dye or pigment, solvent and polyurethane to the outer surface of the leather by printin...

Claims

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Application Information

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IPC IPC(8): D06N3/00B05D7/24C14B7/00
CPCD06N3/0056D06N3/0077B05D7/24C14B7/00D06N2211/28D06N2211/263D06N2211/261C14C13/02C14C11/003D06N3/06C09K19/00C09K2219/00D06P1/004D06P3/32D06N3/0065D06N3/0043D06P5/08
Inventor 徐燕秋刘海洋滕大勇
Owner BENECKE CHANGSHUN AUTO TRIMZHANGJIAGANG
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