High-activity collagen filler as well as preparation method and application thereof

A collagen and high-activity technology, applied in the field of leather, can solve the problems of reducing the amount of high-activity collagen fillers, tannin extract usage, weak adsorption, and reducing the ability of protein fillers to combine with skin collagen fibers, so as to improve leather quality. The effect of fleshy feeling, promoting adsorption and increasing density

Pending Publication Date: 2022-03-22
XINGYE LEATHER TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a high activity collagen filler and its preparation method and application, which solves the problem that the protein filler in the prior art has a large molecular weight, which will reduce the ability of the protein filler to combine with skin collagen fibers. At the same time, the amino group and carboxyl group, The chemical bonds between the active functional groups on the long chain of collagen are mainly hydrogen bonds, and t

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-activity collagen filler as well as preparation method and application thereof
  • High-activity collagen filler as well as preparation method and application thereof
  • High-activity collagen filler as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1

[0032] A preparation method of highly active collagen filler, comprising the following steps:

[0033]Step (1): Dissolve 100 parts of leather scraps, 3 parts of potassium hydroxide and 3 parts of potassium carbonate in 200 parts of water, degrade at 80°C for 4h, then cool down to 50°C, add 3 parts of protease, react for 1h, and finally Add ethanol in equal parts with water, filter, and vacuum dry to obtain collagen / potassium carbonate powder;

[0034] Step (2): Dissolve 12 parts of palladium acetate, 3 parts of potassium carbonate, 30 parts of 2-dicyclohexylphosphine-2',4',6'-triisopropylbiphenyl (CAS: 564483-18-7) In 1000 parts of tert-butanol, nitrogen was introduced, mixed at 72°C for 20h, and excess air was discharged to prepare a catalyst solution;

[0035] Step (3): take 38 parts of catalyst solution, 100 parts of collagen / potassium carbonate powder, 8 parts of potassium carbonate, 6 parts of triethylamine, 18 parts of methanol, 115 parts of 4-bromob...

Example Embodiment

[0036] Example 2:

[0037] A preparation method of highly active collagen filler, comprising the following steps:

[0038] Step (1): Dissolve 100 parts of leather scraps, 5 parts of potassium hydroxide and 2 parts of potassium carbonate in 320 parts of water, degrade at 70°C for 5h, then cool down to 55°C, add 2 parts of protease, react for 2h, and finally Add ethanol in equal parts with water, filter, and vacuum dry to obtain collagen / potassium carbonate powder;

[0039] Step (2): Dissolve 18 parts of palladium acetate, 4 parts of potassium carbonate, 42 parts of 2-dicyclohexylphosphine-2',4',6'-triisopropylbiphenyl (CAS: 564483-18-7) In 1000 parts of tert-butanol, nitrogen was introduced, mixed at 75°C for 32 hours, and excess air was discharged to prepare a catalyst solution;

[0040] Step (3): Take 12 parts of catalyst solution, 100 parts of collagen / potassium carbonate powder, 6 parts of potassium carbonate, 3 parts of triethylamine, 12 parts of methanol, 100 parts of 4...

Example Embodiment

[0041] Example 3

[0042] A preparation method of highly active collagen filler, comprising the following steps:

[0043] Step (1): Dissolve 100 parts of leather scraps, 8 parts of alkali (potassium hydroxide), and 2 parts of buffer (potassium carbonate) in 480 parts of water, degrade at 80°C for 4 hours, then cool down to 60°C, add 1 Protease, reacted for 3h, and finally added ethanol in equal parts with water, filtered, and vacuum-dried to obtain collagen / potassium carbonate powder.

[0044] Step (2): Dissolve 8 parts of palladium acetate, 2 parts of potassium carbonate, 15 parts of 2-dicyclohexylphosphine-2',4',6'-triisopropylbiphenyl (CAS: 564483-18-7) In 1000 parts of tert-butanol, nitrogen was introduced, mixed at 55° C. for 18 hours, and excess air was discharged to prepare a catalyst solution.

[0045] Step (3): take 25 parts of catalyst solution, 100 parts of collagen / potassium carbonate powder, 8 parts of potassium carbonate, 5 parts of triethylamine, 18 parts of m...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a high-activity collagen filler as well as a preparation method and application thereof, and the preparation method comprises the following steps: step (1): dissolving leather shavings and an alkalized substance buffer agent in water, degrading, cooling, adding protease and ethanol, filtering, and drying in vacuum to obtain collagen/potassium carbonate powder; (2) dissolving palladium acetate, potassium carbonate and 2-dicyclohexylphosphine-2 ', 4', 6 '-triisopropylbiphenyl in tert-butyl alcohol, introducing nitrogen, mixing, and discharging excess air to prepare a catalyst solution; (3) dissolving the catalyst solution, collagen/potassium carbonate powder, potassium carbonate, triethylamine and methanol 4-bromobenzaldehyde dimethyl acetal in tert-butyl alcohol, introducing nitrogen for reaction, cooling, carrying out reduced pressure distillation to remove the tert-butyl alcohol solvent, and adding water to obtain high-activity collagen filler; the particle size of the high-activity collagen filler is 300-800 nm, the particle size distribution coefficient is 0.150-0.350, the high-activity collagen filler has certain amphoteric property, the zeta potential is-20--40 mV, and the content of water insoluble substances is smaller than or equal to 3%.

Description

technical field [0001] The invention relates to the technical field of tanning, in particular to a high-activity collagen filler and a preparation method and application thereof. Background technique [0002] The style of leather and leather products is constantly changing with the improvement of people's consumption level. In recent years, the style of leather and leather products has gradually shifted from "plastic" to "sensual". "Plastic feeling" is mainly reflected by the large molecular acrylic resin retanning agent and small and medium molecular acrylic resin retanning agent. At the same time, a small amount of polyurethane resin will be introduced in the retanning filling process to improve the uniformity. Relatively speaking, the plastic feeling is relatively strong. Heavy leather uniformity is good. In recent years, consumers are more advocating the feeling of natural leather, that is, sensuality. The sensuality is mainly reflected by protein fillers, and at the s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C07K14/78C14C3/02C14C1/00
CPCC07K14/78C14C3/02C14C1/00
Inventor 姚庆达黄鑫婷周华龙牛泽张自盛孙辉永
Owner XINGYE LEATHER TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap