Non-ironing plant-chrome tanning universal water-based environmental protection leather edge banding agent and its preparation method and application

A technology of vegetable tanned leather and edge banding agent, which is applied in non-iron vegetable-chrome tanning universal water-based environmental protection leather edge banding agent and its preparation field, can solve the problems of loose leather, difficult processing and molding, and many burrs, and achieve simple operation method, Labor saving effect

Active Publication Date: 2021-08-24
ZHONGYUAN ENGINEERING COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with vegetable tanned leather, chrome tanned leather has less plasticity and is more difficult to process and shape. Its incision edge is softer, with more burrs and loose cortex. It is generally only suitable for oily edge banding, not water-based edge banding. If you want Water-based edge banding, in order to achieve a smooth and firm effect, must be processed by high-temperature ironing process, so the processing process is more troublesome
In terms of technology, there is currently no water-based edge banding agent that is common to both chrome tanned leather and vegetable tanned leather without ironing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method for non-ironing plant-chrome tanning universal water-based environmental protection leather edge banding agent, comprising the following steps:

[0034] 1) Preparation of liquid A: Use larch tannin as the main component of the preparation of liquid A, which is suitable for edge banding treatment of colorless and light-colored leather. Dissolve larch tannin in water to make a concentration of 10%. To a transparent solution, add 3% penetrant JFC to it, stir evenly, and prepare A solution for later use.

[0035]2) Preparation of liquid B: Add leather-specific disperse dyes with a mass fraction of 1% to water, add 30% aliphatic water-based polyurethane resin dispersion emulsion PU-2834, add 20% oxidized polyethylene wax emulsion Poligen WE6, add 0.5% of leather polish 709G, add 1.5% of environmentally friendly amide vinyl crosslinking agent C6 or aziridine crosslinking agent C9, add 0.5% of polyurethane leveling thickener OS-6020, add 0.2% of silicone d...

Embodiment 2

[0039] A preparation method for non-ironing plant-chrome tanning universal water-based environmental protection leather edge banding agent, comprising the following steps:

[0040] 1) Preparation of liquid A: Use rubber extract as the main component to prepare liquid A, which can be used for edge banding of brown and black leather. Dissolve tannins in water to prepare a solution with a concentration of 15%, then add 3.5% penetrant JFC to it, stir evenly, and prepare A solution for use.

[0041] 2) Preparation of liquid B: Add leather-specific disperse dyes with a mass fraction of 1.5% to water, add 35% aliphatic water-based polyurethane resin dispersion emulsion PU-2834, add 22% oxidized polyethylene wax emulsion Poligen WE6, add 0.8 % leather polish agent 709G, add 2% environmentally friendly amide vinyl crosslinking agent C6 or aziridine crosslinking agent C9, add 0.75% polyurethane leveling thickener OS-6020, add 0.3% silicone defoaming agent Agent CX-470, add 0.2% water-b...

Embodiment 3

[0045] A preparation method for non-ironing plant-chrome tanning universal water-based environmental protection leather edge banding agent, comprising the following steps:

[0046] 1) Preparation of liquid A: use gallic tannin tannin as the main component of the preparation of liquid A, which is suitable for dark leather, especially black and brown leather, and gallic tannin tannin can be used to prepare liquid A. Dissolve tannin in water to prepare a solution with a concentration of 15%, then add 4% penetrant JFC to it, stir evenly, and prepare liquid A for use.

[0047] 2) Preparation of liquid B: Add leather-specific disperse dyes with a mass fraction of 2% to water, add 40% aliphatic water-based polyurethane resin dispersion emulsion PU-2834, add 23.5% oxidized polyethylene wax emulsion Poligen WE6, add 1.2 % leather polish 709G, add 2.5% environmentally friendly amide vinyl crosslinking agent C6 or aziridine crosslinking agent C9, add 0.75% polyurethane leveling thickener...

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PUM

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Abstract

The present invention provides a general-purpose water-based environmental-friendly leather edge-sealing agent for non-iron vegetable-chrome tanning and a preparation method and application thereof, comprising a component A and a component B, and the component A includes the following raw materials by weight: tannin 10 ‑20%, penetrating agent 3‑5%, and the rest are water; component B includes the following raw materials by weight: leather glazing agent 0.5‑1.5%, crosslinking agent 1.5‑3%, film forming agent 50‑70%, Thickener 0.5-1%, defoamer 0.2-0.5%, anti-sticking agent 0.1-0.3% and disperse dye 1-3%, the rest is water. The vegetable-chrome tanning universal water-based environmental protection leather edge banding agent of the invention can be applied to the edge banding of vegetable tanned leather and chrome tanned leather. Current status of water-based edge sealers.

Description

technical field [0001] The invention relates to the field of leather chemistry and engineering, in particular to a non-ironing-chrome tanning universal water-based environmental-friendly leather edge banding agent and its preparation method and application. Background technique [0002] Leather edge banding refers to the physical treatment of the leather incision, and the use of special prepared chemical reagents to apply it to the exposed leather incision, and special process treatment to make the leather edge full and round, with smooth lines, a certain degree of elasticity and The effect of texture, but also a process and method that can prevent the leather edge from being contaminated with dust. Professional leather edge banding agents can be divided into two types: water-based and oil-based. Oil-based leather edge-banding agents have a better edge-sealing effect and do not require ironing, and are suitable for vegetable tanned leather and chrome-tanned leather, but are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C11/00
Inventor 苏小舟栗蕾
Owner ZHONGYUAN ENGINEERING COLLEGE
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