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A kind of temperature-controlled discoloration leather and its production process

A temperature-controlled discoloration and production process technology, which is applied in textiles and papermaking, heat-sensitive paints, coatings, etc., can solve the problems of poor reversibility of discoloration and uneven discoloration

Active Publication Date: 2017-01-11
黄建生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Temperature-controlled discoloration leather often has problems such as uneven discoloration and poor discoloration reversibility

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A temperature-controlled color-changing leather, the temperature-controlled color-changing leather includes a color-changing coating, and the color-changing coating is made of water-based anionic polyurethane and a color-changing slurry in a volume ratio of 0.05:1; the color-changing slurry includes The following components are calculated: 5 parts of melamine resin, 2 parts of 2-anilino-3-methyl-6-dibutylaminofluoran, 5 parts of 4,4'-sulfonyl diphenol, 10 parts of thermochromic powder and 90 parts of methyl stearate.

[0033] This discoloration paste is made by following steps:

[0034] i) Get 5 parts of melamine resin and 10 parts of temperature-sensitive color-changing powder, mix well; As the dispersion medium, melamine resin wraps the thermochromic powder to form a structure like a capsule shell, which effectively improves the dispersibility of the thermochromic powder.

[0035] ii) Add 5 parts of 4,4'-sulfonyldiphenol and 2 parts of 2-anilino-3-methyl-6-dibutylam...

Embodiment 2

[0044] A temperature-controlled color-changing leather, the temperature-controlled color-changing leather includes a color-changing coating, and the color-changing coating is made of water-based anionic polyurethane and a color-changing slurry in a volume ratio of 0.15:1; the color-changing slurry includes The following components are calculated: 8 parts of melamine resin, 1 part of 2-anilino-3-methyl-6-dibutylaminofluorane, 10 parts of 4,4'-sulfonyl diphenol, 20 parts of thermochromic powder and 80 parts of methyl stearate.

[0045] Described discoloration slurry is made by following steps:

[0046] i) Take 8 parts of melamine resin and 20 parts of thermochromic powder and mix them evenly;

[0047] ii) Add 10 parts of 4,4'-sulfonyldiphenol and 1 part of 2-anilino-3-methyl-6-dibutylaminofluorane, and mix well to obtain a mixed material;

[0048] iii) Add methyl stearate, heat to 60°C, and cool to obtain a color-changing slurry.

[0049] The production process of the temperatu...

Embodiment 3

[0055] A temperature-controlled color-changing leather, which includes a color-changing coating, the color-changing coating is made of oily anionic polyurethane and a color-changing slurry in a volume ratio of 0.1:1; the color-changing slurry includes The following components are calculated: 6 parts of melamine resin, 5 parts of 2-anilino-3-methyl-6-dibutylaminofluorane, 3 parts of 4,4'-sulfonyl diphenol, 30 parts of thermochromic powder and 70 parts of methyl stearate.

[0056] Described discoloration slurry is made by following steps:

[0057] i) Take 6 parts of melamine resin and 30 parts of thermochromic powder and mix them evenly;

[0058] ii) Add 3 parts of 4,4'-sulfonyldiphenol and 5 parts of 2-anilino-3-methyl-6-dibutylaminofluorane, and mix well to obtain a mixed material;

[0059] iii) Add methyl stearate, heat to 50°C, and cool to obtain a color-changing slurry.

[0060] The production process of the temperature-controlled discoloration leather comprises the foll...

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Abstract

The invention provides a temperature-controlled color-changing leather. The leather comprises a color-changing coating, which is prepared from anionic polyurethane and color-changing slurry according to a volume ratio of 0.05-0.15:1. The color-changing slurry comprises the following components in parts by weight: 5 to 8 parts of melamine resin, 1 to 5 parts of 2-phenylamino-3-methyl-6-dibutylaminofluoran, 3 to 10 parts of 4,4'-sulfonyl diphenol, 5 to 30 parts of temperature-sensitive color-changing powder, and 70 to 90 parts of fatty acid methyl ester. The production technology comprises the following steps: (1) preparing color-changing slurry; (2) preparing color-changing paint; (3) painting to obtain the temperature-controlled color-changing leather comprising color-changing coating. The color of the color-changing coating of the provided temperature-controlled color-changing leather becomes lighter and lighter in a temperature range of 20 to 45 DEG C. Moreover, the color of the temperature-controlled color-changing leather is reversible, the dispersibility of the temperature-sensitive powder is good, and thus the color changing is uniform.

Description

technical field [0001] The invention relates to the technical field of leather production, in particular to a temperature-controlled discoloration leather and a production process thereof. Background technique [0002] Color-changing leather usually refers to artificial leather that changes color under changes in temperature or pressure. Stress color-changing leather is one of the representatives of such products. It is made of a new type of color-changing resin and a specific process technology. When it is stretched, jacked up, bent, folded, etc. The parts where the leather deforms will show color changes, and with the change of the deformation gradient, the color will show a gradual change from light to dark, which can give people a natural and soft feeling. Once the external force is removed, the color of the leather surface will naturally return to its original state. Now it is common to use a combination of stress-changing wax powder, nylon fluff powder, solvents, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/14D06N3/18C09D5/26C09D7/12
Inventor 黄建生
Owner 黄建生
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