UV quick adhesive fountain solution containing kappa-carrageenan-konjac gum compound and preparation method thereof

Abstract

The invention discloses a UV quick adhesive fountain solution containing a kappa-carrageenan-konjac gum compound. The UV quick adhesive fountain solution containing the kappa-carrageenan-konjac gum compound is composed of the following raw materials in parts by weight: 70 to 85 parts of deionized water, 10 to 15 parts of kappa-carrageenan, 6 to 10 parts of konjac gum, 3 to 6 parts of tea polyphenol, 2 to 5 parts of turkey red oil, 1 to 3 parts of sorbitol, 3 to 6 parts of pH regulator, 1 to 3 parts of iso-tridecanol polyoxyethylene ether, 1 to 2 parts of polyether defoamer, and 0.5 to 1 part of aluminum-zirconium coupling agent. According to the fountain solution, the kappa-carrageenan and the konjac gum are compounded to be used as a hydrophilic film-forming agent through which the durability of a water film can be improved, and as a result, the fountain solution is high in wettability and permeability during use; kappa-carrageenan-konjac gum-tea polyphenol microspheres have the characteristics of being small in average particle size and slow to release tea polyphenol, so that the tea polyphenol can be slowly released during the use of the fountain solution, and as a result, the oxidation resistance of the tea polyphenol can be greatly improved, and the use stability of the fountain solution can be ensured.

Description

technical field

[0001] The invention relates to the technical field of offset printing dampening solution, in particular to a UV quick-drying offset dampening solution containing kappa-carrageenan-konjac gum and a preparation method thereof. Background technique

[0002] Offset printing uses the two natural laws of immiscibility of oil and water and selective adsorption of solids to liquids, and builds the copied graphics and blank parts on the surface of the unified printing plate after technical treatment, so that the blank part has Strong water absorption performance, the graphic part is lipophilic and water repellent. In the printing process, water is supplied to the entire printing plate first, so that the blank part of the layout absorbs water to form a water film, and then ink is supplied to the printing plate. At this time, since a layer of water film already exists in the blank part of the printing plate, the ink cannot be adsorbed on the blank part, and the graphi...

Examples

Embodiment 1

[0024] In this embodiment, a UV quick-drying offset plate dampening solution containing kappa-carrageenan-konjac gum compound comprises the following components and contents by weight: 75 parts of deionized water, 12 parts of kappa-carrageenan, and 8 parts of konjac gum , 4 parts of tea polyphenols, 3 parts of Swire oil, 2 parts of sorbitol, 4 parts of pH regulator, 2 parts of isomeric tridecyl alcohol polyoxyethylene ether, 2 parts of polyether defoamer, 1 part of aluminum-zirconium coupling agent .

[0025] Wherein the resistivity of deionized water at 25° C. is 1018 mΩ•cm; the pH adjuster is prepared by mixing phosphoric acid and ammonium dihydrogen phosphate, and the mass ratio of phosphoric acid and ammonium dihydrogen phosphate is 2:1.

[0026] Specific steps are as follows:

[0027] (1) Preparation of κ-carrageenan-konjac gum-tea polyphenol microspheres:

[0028] ①. Dissolve κ-carrageenan, konjac gum and tea polyphenols in deionized water as the water phase for later ...

technical field

[0001] The invention relates to the technical field of offset printing dampening solution, in particular to a UV quick-drying offset dampening solution containing kappa-carrageenan-konjac gum and a preparation method thereof. Background technique

[0002] Offset printing uses the two natural laws of immiscibility of oil and water and selective adsorption of solids to liquids, and builds the copied graphics and blank parts on the surface of the unified printing plate after technical treatment, so that the blank part has Strong water absorption performance, the graphic part is lipophilic and water repellent. In the printing process, water is supplied to the entire printing plate first, so that the blank part of the layout absorbs water to form a water film, and then ink is supplied to the printing plate. At this time, since a layer of water film already exists in the blank part of the printing plate, the ink cannot be adsorbed on the blank part, and the graphi...

Examples

Embodiment 1

[0024] In this embodiment, a UV quick-drying offset plate dampening solution containing kappa-carrageenan-konjac gum compound comprises the following components and contents by weight: 75 parts of deionized water, 12 parts of kappa-carrageenan, and 8 parts of konjac gum , 4 parts of tea polyphenols, 3 parts of Swire oil, 2 parts of sorbitol, 4 parts of pH regulator, 2 parts of isomeric tridecyl alcohol polyoxyethylene ether, 2 parts of polyether defoamer, 1 part of aluminum-zirconium coupling agent .

[0025] Wherein the resistivity of deionized water at 25° C. is 1018 mΩ•cm; the pH adjuster is prepared by mixing phosphoric acid and ammonium dihydrogen phosphate, and the mass ratio of phosphoric acid and ammonium dihydrogen phosphate is 2:1.

[0026] Specific steps are as follows:

[0027] (1) Preparation of κ-carrageenan-konjac gum-tea polyphenol microspheres:

[0028] ①. Dissolve κ-carrageenan, konjac gum and tea polyphenols in deionized water as the water phase for later ...