Sponge foam soft light synthetic fatting agent as well as preparation method and application thereof

A fatliquoring and softening technology, which is applied in the field of leather making to improve physical and mechanical properties, lightness and softness.

Pending Publication Date: 2022-03-08
XINGYE LEATHER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application solves the technical problem that most of the filling process and fatliquoring process in the prior art are relatively soft or relatively rigid by providing a soft and light synthetic fatliquoring agent for soft foam and its preparation method and application, and achieves a kind of Soft and lightweight synthetic fatliq

Method used

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  • Sponge foam soft light synthetic fatting agent as well as preparation method and application thereof
  • Sponge foam soft light synthetic fatting agent as well as preparation method and application thereof
  • Sponge foam soft light synthetic fatting agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1:

[0028] Method for preparing a sputum soft and light synthetic fat-lipid, including the following steps:

[0029] 1 5 parts of polyphosphoric acid, 87 phosphoric acid, 5 parts of phosphorus, 3 parts of trichlorophous phosphorus mix well, under the protection of nitrogen, the temperature at 50 ° C, stirred for 6 h, resulting in a catalyst solution;

[0030] 2 Take 8 parts of the catalyst solution, dissolved in 100 parts of 2,3,5,6-tetraminopyridine hydrochloride, under the protection of nitrogen, adjusted 80 ° C, reaction for 6 h, and then add 210 parts of tapic acid, heating to 150 ° C reaction for 1 h, slowly cooling and cooled, resulting in an intermediate;

[0031] 3 Take 1000 intermediates, 1500 parts of 1,4-dioxane, 5 parts of palladium, 2 parts of carbonate, mixed at 50 ° C, and then add 2100 parts of 5-bromobenyl terephthalic acid, reaction 6h, The post-rotation evaporation removes 1,4-dioxane, and finally adjusts the temperature to 30 ° C, adding 3,500 p...

Example Embodiment

[0032] Example 2

[0033] Method for preparing a sputum soft and light synthetic fat-lipid, including the following steps:

[0034] 1 Wen 10 parts of polyphosphate, 82 phosphoric acid, 3 parts of phosphorus, 3 parts of trichlorophous phosphorus mix well, under the protection of nitrogen, the temperature is 40 ° C, stirred for 6 h, resulting in a catalyst solution;

[0035] 2 Take 5 parts of the catalyst solution, dissolve in 95 parts of sulfate, under the protection of nitrogen, and the reaction is adjusted for 6 h, and then 195 parts of stearic acid, the temperature is increased to 180 ° C for 0.5 h, slowly cooling and cooling, resulting in an intermediate ;

[0036] 3 Take 950 intermediates, 1800 parts of 1,4-dioxane, 8 parts of palladium, 3 parts of carbonate, mixed at 80 ° C, and then add 1800 parts of 5-bromobenenenenenpaic acid, reaction 4h, The post-rotation evaporation removes 1,4-dioxane, and finally adjusts the temperature to 50 ° C, adding 3,000 parts of water, high-speed...

Example Embodiment

[0037] Example 3

[0038] Method for preparing a sputum soft and light synthetic fat-lipid, including the following steps:

[0039] 1 5 parts of polyphosphoric acid, 100 parts of phosphoric acid, 3 parts of phosphorus, 2 parts of trichlorophous phosphorus, under the protection of nitrogen, the adjustment temperature at 35 ° C, stirred for 8 h, to obtain a catalyst solution;

[0040] 2 Take 10 parts of the catalyst solution, dissolved in 85 parts of 2, 3, 5, 6-tetraminopyridine hydrochloride, under the protection of nitrogen, adjusted 100 ° C, reaction 8h, and then add 220 parts of tapic acid, heating to 165 The reaction was reacted for 1 h, slowly cooling and cooled to obtain an intermediate;

[0041] 3 Take 800 parts of the intermediate, 2000 parts 1,4-dioxane, 3 parts of palladium, 9 parts of carbonate, mixed at 95 ° C, and then 1,950 parts of 5-bromobenyl terephthalic acid, reaction 12h, The post-rotation evaporation removes 1,4-dioxane, and finally adjusts the temperature to 4...

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Abstract

The preparation method comprises the following steps: (1) mixing polyphosphoric acid, phosphoric acid, phosphorus pentachloride and phosphorus oxychloride, and under the protection of nitrogen, adjusting the temperature and stirring to obtain a catalyst solution; (2) dissolving a catalyst solution in the salinization substance, adjusting the temperature to react under the protection of nitrogen, adding long-chain carboxylic acid, heating to react, and cooling to obtain an intermediate; (3) uniformly mixing the intermediate, 1, 4-dioxane, palladium acetate and cesium carbonate, adding 5-bromoisophthalic acid, reacting, carrying out rotary evaporation to remove the 1, 4-dioxane, adjusting the temperature, adding water, and dispersing to obtain a fatting agent; the soft-foam light synthetic fatting agent has the flexibility of long-chain hydrocarbons and the rigidity of a benzene ring-containing structure, the lightness of leather can be improved through the pi-pi interaction between aromatic rings, the leather is endowed with good foam feeling, the softness of the leather can be improved through the long-chain hydrocarbons, and the leather is not prone to falling off. And the leather is endowed with good cotton feeling.

Description

technical field [0001] The invention relates to the technical field of tanning, in particular to a foam soft light synthetic fatliquoring agent and a preparation method and application thereof. Background technique [0002] With the continuous development of society and the continuous improvement of consumption levels, consumers have higher and higher requirements for leather and leather products, requiring not only physical and mechanical properties of leather, but also functionality and ecology. However, the endowment and improvement of functionality, ecology, and physical and mechanical properties are accompanied by the use of a large number of chemical raw materials. This also makes the density of the leather more and more dense, and it is more heavy and solid from the senses. However, as consumers continue to upgrade and change "fashion", the demand for light leather is increasing day by day, and the sense of light leather is soft and light. [0003] From the perspect...

Claims

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Application Information

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IPC IPC(8): C07D471/14C14C3/08C14C9/02
CPCC07D471/14C14C9/02C14C3/08Y02P70/62
Inventor 姚庆达黄鑫婷牛泽张自盛左莹蔡一雷
Owner XINGYE LEATHER TECH CO LTD
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