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Color paste color fixing agent for paper, and preparation method and application of color paste color fixing agent

A color fixing agent and color paste technology, which is applied in paper, papermaking, textiles and papermaking, etc., can solve the problem of lack of special color paste color fixing agent, etc., and achieve resistance to papermaking water washing and mechanical interference, small color difference, and increased strength Adsorption effect

Inactive Publication Date: 2020-03-27
GUANGDONG IND TECHN COLLEGE +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the paper color paste is a new type of coloring chemical, which is generally assisted by process chemicals such as wet end retention aids and wet strength agents, and there is a lack of special color paste color fixing agents for matching.

Method used

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  • Color paste color fixing agent for paper, and preparation method and application of color paste color fixing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Preparation of color fixing agent:

[0040] 50 parts by mass of water, 10 parts by mass of epichlorohydrin, 5 parts by mass of crosslinking cationic monomer (diethylenetriamine), 1 part by mass of crosslinking accelerator (dimethylamine), 10 parts by mass of hydrophilic adhesive (polyethylene triamine) Vinyl alcohol, PVA205, Japan Kuraray).

[0041] Add epichlorohydrin into the Erlenmeyer flask, and adjust it to be weakly alkaline (pH value is 8) with NaOH, and keep it idling for 30min at a constant temperature of 85°C; and install an adjustable reflux dropper device, add dissolved hydrophilic Adhesive, after 15 minutes of heat preservation, slowly drop the cross-linking cationic monomer and cross-linking accelerator into the Erlenmeyer flask (2 hours); at the same time, raise the temperature to 90°C and stir at a constant temperature for 3 hours, cool down and discharge to obtain a paper color paste Fixative. Adjust the mass concentration of the above-mentioned c...

Embodiment 2

[0047] (1) Preparation of color fixing agent:

[0048] 30 parts by mass of water, 6 parts by mass of epichlorohydrin, 5 parts by mass of crosslinking cationic monomer (diethylenetriamine), 1 part by mass of crosslinking accelerator (dimethylamine), 5 parts by mass of hydrophilic adhesive (carboxylate Methylcellulose QX10, Hercules).

[0049] Add epichlorohydrin into the Erlenmeyer flask, adjust it to be weakly alkaline (pH value is 9) with NaOH, and keep it idling for 30 minutes at a constant temperature of 85°C; install an adjustable reflux dropper device, and add dissolved hydrophilic Adhesive, after 15 minutes of heat preservation, slowly drop the cross-linking cationic monomer and cross-linking accelerator into the Erlenmeyer flask (2 hours); at the same time, raise the temperature to 90°C and stir at a constant temperature for 3 hours, cool down and discharge to obtain a paper color paste Fixative. Adjust the mass concentration of the above-mentioned color-fixing agent ...

Embodiment 3

[0054] (1) Preparation of color fixing agent:

[0055] 50 parts by mass of water, 10 parts by mass of epichlorohydrin, 1 part by mass of a crosslinking cationic monomer (diethylenetriamine), 0.5 parts by mass of a crosslinking accelerator (dimethylamine), 10 parts by mass of a hydrophilic adhesive (polyethylene triamine) Acrylamide, Eisen anionic polyacrylamide).

[0056] Add epichlorohydrin into the Erlenmeyer flask, adjust it to be weakly alkaline (pH value is 9) with NaOH, and keep it idling for 30 minutes at a constant temperature of 85°C; install an adjustable reflux dropper device, and add dissolved hydrophilic Adhesive, after 15 minutes of heat preservation, slowly drop the cross-linking cationic monomer and cross-linking accelerator into the Erlenmeyer flask (2 hours); at the same time, raise the temperature to 90°C and stir at a constant temperature for 3 hours, cool down and discharge to obtain a paper color paste Fixative. Adjust the mass concentration of the abov...

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Abstract

The invention discloses a color paste color fixing agent for paper, and a preparation method and an application of the color paste color fixing agent. The color fixing agent is prepared from the following components: an etherifying agent, a cross-linking cationic monomer, a cross-linking accelerant, a hydrophilic adhesive and water. The method comprises the steps: adjusting the pH value of the etherifying agent to 8-10, and carrying out heat preservation for 20-40 min at the temperature of 80-90 DEG C; then adding the hydrophilic adhesive dissolved in water, and carrying out heat preservationfor 10-30 min at the temperature of 80-90 DEG C; next, adding the cross-linking cationic monomer and the cross-linking accelerant into the mixture A, heating to 90-95 DEG C, and stirring for 2-4 h ata constant temperature; cooling and discharging; and adjusting the mass concentration to be 30-40% and the cation degree to be 20-50 mV to obtain the color paste fixing agent for paper. The color fixing agent is suitable for coloring water-based color paste for in-pulp papermaking addition, strong adsorption of the color paste and fibers is improved, papermaking water body washing and mechanical force interference can be resisted, the color of finished paper is bright and stable, and the color difference after repeated papermaking is small.

Description

technical field [0001] The invention belongs to the field of fine chemical new materials, and in particular relates to a color paste color fixing agent for paper and its preparation method and application. Background technique [0002] Colored paper is colored paper. After the dye-dyed fibers are stored for a long time, the color system of the dye molecules is easy to change or be destroyed, resulting in the decomposition of the dye and discoloration or fading. Therefore, the paper products dyed with dyes have poor light and weather resistance, and are easy to fade and not durable. Organic pigment paste is a coloring substance with water as the dispersion medium. During use, it is insoluble in the use medium and always exists in the original crystal state. Therefore, the color of the pigment itself represents its color on the substrate, and the organic Pigments have high coloring power, hiding power, chemical stability, light resistance, bright, stable and long-lasting colo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/28D21H17/28D21H17/36D21H17/26D21H17/37D21H17/45
CPCD21H17/26D21H17/28D21H17/36D21H17/37D21H17/45D21H21/28
Inventor 颜进华杨焕磊
Owner GUANGDONG IND TECHN COLLEGE
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