Method for producing formeldehyde-free colour fixing agent

A color-fixing agent and formaldehyde technology is applied in the field of preparation of environment-friendly high-speed water-resistant casein glue for labeling wine bottles, which can solve the problems of single formula and unsatisfactory effect, and achieve good color-fixing effect and color-fixing effect. Environmentally friendly effect

Inactive Publication Date: 2007-03-21
华明扬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the restrictions on formaldehyde content in some countries, formaldehyde-free color-fixing agents have been eliminated. In recent years, formaldehyde-free

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] In a 100Kg reactor, add 45Kg of ethyl acrylate, 1.2KG of acrylic acid and 65g of sodium metabisulfite, stir to fully mix and dissolve after adding, heat up to 66°C, and keep warm for 2 hours;

[0012] Transfer the reaction material in the kettle to a 500Kg reaction kettle preheated at 60°C, add 85KG of diethylenetriamine dropwise for about 40 minutes, pay attention to the temperature change, do not exceed 70°C in the first 30 minutes, and discharge slowly. React at 65°C for 2.5 hours, add 150Kg of deionized water for about 10 minutes, then add 75Kg of epichlorohydrin dropwise, and drop it in about 1 hour. (Control below 70°C,) appears transparent or light yellow, and ends;

[0013] Lower the temperature to below 40°C, lower the temperature to room temperature, heat concentrated hydrochloric acid, adjust the pH value to 6, add the remaining water, adjust the solid content to 30%, and filter the material.

Embodiment 2

[0015] In a 100Kg reactor, add 50Kg of ethyl acrylate, 1.0KG of acrylic acid and 70g of sodium metabisulfite, stir to fully mix and dissolve after adding, heat up to 65°C, and keep warm for 2 hours;

[0016] Transfer the reaction material in the kettle to a 500Kg reaction kettle preheated at 60°C, add 82Kg of diethylenetriamine dropwise for about 40 minutes, pay attention to the temperature change, do not exceed 70°C in the first 30 minutes, and discharge slowly. React at 65°C for 2.5 hours, then add 150Kg of deionized water for about 10 minutes, then add 70Kg of epichlorohydrin dropwise for about 1 hour, keep the temperature below 70°C, the system will appear transparent or light yellow, and end;

[0017] Cool down to below 40°C, cool down to room temperature, add concentrated hydrochloric acid to adjust the pH value to 6.5, add the remaining water, adjust the solid content to 30%, filter and discharge.

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PUM

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Abstract

The present invention relates to a preparation method of formaldehyde-free dye-fixing agent. Said method includes the following steps: (1), adding (by weight portion) 40-50 portions of ethyl acrylate, 1-2 portions of acrylic acid and 60-65 portions of sodium metabisulfite into a reaction still, stirring and uniformly mixing them, heating to 65 plus or minus 2 deg.C, heat-insulating and making reaction for 2 hr plus or minus 0.5 hr; (2), drop-adding 80-85 portions of di-ethylene triamine and controlling temperature below 70 deg.C; (3), adding proper quantity of water, after 10 min, drop-adding 70-75 portions of epichlorohydrin and controlling temperature below 70 deg.C so as to produce transparent or light yellow color, cooling; and (4), cooling to room temperature, adding concentrated hydrochloric acid to regulate pH value and make it be 6-7, regulating solid content so as to obtain the invented finished product.

Description

technical field [0001] The invention relates to a method for preparing an environment-friendly high-speed water-resistant wine bottle labeling casein glue. Background technique [0002] The current fabric dyeing is mainly dyed with reactive dyes, but because these dyes contain hydrophilic groups and the particle size of dyes can affect the soaping fastness of dyeing. Resulting in unqualified wet fastness. A fixative must be used to fix the color. In the past, most of the color fixing agents used were color fixing agents containing formaldehyde. With the restrictions on formaldehyde content in some countries, formaldehyde-free color-fixing agents have been eliminated. In recent years, formaldehyde-free color-fixing agents have often been reported in some patents. For example, 03114001.7 discloses a preparation of diethylenetriamine and epichlorohydrin Formaldehyde-free color fixing agent, but because of its single formula, the effect is not ideal. Contents of the inventi...

Claims

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Application Information

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IPC IPC(8): D06P1/653
Inventor 华明扬
Owner 华明扬
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