Modified polyurethane resin emulsion dye ink and application thereof

Abstract

The invention discloses a modified polyurethane resin emulsion dye ink and an application thereof. The modified polyurethane resin emulsion dye ink comprises the following components based on weight ratio: 0.1-12% of solvent dye and / or water-soluble dye, 13.5-49.8% of polyurethane resin solid content, 0.01-1% of ultraviolet absorber and the balance of solvent, wherein various additives can be added in the dye ink. The dye ink disclosed in the invention can be used in the fields such as jet ink, cipher paint ink, textile printing ink, aqueous printing ink, fountain pen word ink, rolling maker ink, coating, leather finishing agent, surface finishing and the like, and has the advantages of good storage stability, excellent water resistance, chemical resistance and light resistance, favorable mechanical performance, high brightness, high and low temperature resistance, ageing resistance, good color reproducivity and transparency, easily-obtained raw materials, simple manufacture, easy detection, low cost and wide market application prospect.

Description

technical field

[0001] The invention relates to an ink, in particular to a dye ink. Background technique

[0002] Common inks are divided into dye inks and pigment inks. Dye ink is a fully dissolved ink at the molecular level. This ink is a complete composite solution. The probability of clogging the ink head during inkjet printing is very small. After inkjet printing, it is easy to be absorbed by the material. Low ink, so it is the first choice for printing pictures, making color printing business cards, etc. However, its disadvantage is that it is not resistant to water and chemical reagents, and because the dye molecules decompose quickly under ultraviolet radiation, it will obviously fade within a month after being used outdoors under ultraviolet light, which affects its application in life, such as long-term storage. Documents, large outdoor advertisements and other fields. However, due to the limitations of the nature of the raw materials used, the main disadvantage...

Examples

Embodiment 1

[0074] Embodiment 1: Preparation of modified polyurethane resin color emulsion

[0075] 1: Weigh 5g of Acid Scarlet GR, dissolve in water, wait until completely dissolved, and filter. When filtering, filter the dye with chronic qualitative filter paper, called dye solution.

[0076] 2: Mix 90mL of solvent with 0.1mol of toluene diisocyanate (TDI) and add it to a three-necked flask protected by nitrogen, and add 3 drops of catalyst dibutyltin dilaurate (DBT), and heat up to 60°C (use acetone as When the solvent is used, the reaction temperature is slightly lower), slowly drop a certain amount of organosilicon (hydroxyl-terminated silicone oil), drop it in about 1.5 hours, and continue the reaction for 1.5 hours after the dropwise addition. Then a certain amount of polyisopropylene glycol (PPG, Mn=1000) was added dropwise for about 1.5 hours, and the reaction was continued for 1.5 hours after the dropwise addition was completed. Let cool to room temperature.

[0077] 3: quickly...

Embodiment 2

[0079] Embodiment 2: Addition amount of dyestuff, modified polyurethane resin emulsion and water resistance and chemical resistance experiment:

[0080] According to the national QB / T 2063-2007, GB / T 18724-2008 / ISO 2836:2004 standard testing.

[0081] Get dyestuff acid bright red GR and solvent dyestuff golden light bright red respectively to make ink, dye amount is 0.1,0.5,1,2,3,4,5,6,7,8,9,10,11,12 (weight %), set into a beaker, add an appropriate amount of solvent and / or wetting agent, stir evenly, filter with chronic qualitative filter paper, then take modified polyurethane resin emulsion (solid content in modified polyurethane resin emulsion is 30 ± 2%), with 10, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 80, 90 (weight %), add water and other additives (total amount 100%), form several formulas respectively (orthogonal experiment), stirred evenly, and filtered again through a microporous membrane to prepare water-based dye and solvent dye ballpoint pen ink. Wash the c...

Embodiment 3

[0098] Embodiment 3: can be used as inkjet ink, inkjet ink, textile printing ink, water-based ballpoint pen ink

[0099] Component Weight

[0100] Acid Scarlet GR 0.1%

[0101] Diethylene glycol 10%

[0102] Silicone-polyurethane resin emulsion (resin solid content is 30%) 55%

[0103] Benzophenone 0.3%

[0104] Benzotriazole 0.2%

[0105] Diethylene glycol butyl ether 10%

[0106] Isobutanol 12.4%

[0107] Methyl isobutyl ketone 10%

[0108] Titanate coupling agent 2%

[0109] Preparation method: prepare according to preparation method three. Quantitatively weigh 0.1g of Acid Scarlet GR, dissolve in 10g of diethylene glycol, then add 10g of diethylene glycol butyl ether, 10.4g of isobutanol, 10g of methyl isobutyl ketone, stir well, filter with chronic qualitative filter paper, add organic 55 g of silicone-polyurethane resin emulsion, 0.3 g of diphenmethanone, and 0.2 g of benzotriazole. Dissolve 2g of titanate coupling agent with 2g of isobutanol, add it into the s...

technical field

[0001] The invention relates to an ink, in particular to a dye ink. Background technique

[0002] Common inks are divided into dye inks and pigment inks. Dye ink is a fully dissolved ink at the molecular level. This ink is a complete composite solution. The probability of clogging the ink head during inkjet printing is very small. After inkjet printing, it is easy to be absorbed by the material. Low ink, so it is the first choice for printing pictures, making color printing business cards, etc. However, its disadvantage is that it is not resistant to water and chemical reagents, and because the dye molecules decompose quickly under ultraviolet radiation, it will obviously fade within a month after being used outdoors under ultraviolet light, which affects its application in life, such as long-term storage. Documents, large outdoor advertisements and other fields. However, due to the limitations of the nature of the raw materials used, the main disadvantage...

Examples

Embodiment 1

[0074] Embodiment 1: Preparation of modified polyurethane resin color emulsion

[0075] 1: Weigh 5g of Acid Scarlet GR, dissolve in water, wait until completely dissolved, and filter. When filtering, filter the dye with chronic qualitative filter paper, called dye solution.

[0076] 2: Mix 90mL of solvent with 0.1mol of toluene diisocyanate (TDI) and add it to a three-necked flask protected by nitrogen, and add 3 drops of catalyst dibutyltin dilaurate (DBT), and heat up to 60°C (use acetone as When the solvent is used, the reaction temperature is slightly lower), slowly drop a certain amount of organosilicon (hydroxyl-terminated silicone oil), drop it in about 1.5 hours, and continue the reaction for 1.5 hours after the dropwise addition. Then a certain amount of polyisopropylene glycol (PPG, Mn=1000) was added dropwise for about 1.5 hours, and the reaction was continued for 1.5 hours after the dropwise addition was completed. Let cool to room temperature.

[0077] 3: quickly...

Embodiment 2

[0079] Embodiment 2: Addition amount of dyestuff, modified polyurethane resin emulsion and water resistance and chemical resistance experiment:

[0080] According to the national QB / T 2063-2007, GB / T 18724-2008 / ISO 2836:2004 standard testing.

[0081] Get dyestuff acid bright red GR and solvent dyestuff golden light bright red respectively to make ink, dye amount is 0.1,0.5,1,2,3,4,5,6,7,8,9,10,11,12 (weight %), set into a beaker, add an appropriate amount of solvent and / or wetting agent, stir evenly, filter with chronic qualitative filter paper, then take modified polyurethane resin emulsion (solid content in modified polyurethane resin emulsion is 30 ± 2%), with 10, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 80, 90 (weight %), add water and other additives (total amount 100%), form several formulas respectively (orthogonal experiment), stirred evenly, and filtered again through a microporous membrane to prepare water-based dye and solvent dye ballpoint pen ink. Wash the c...

Embodiment 3

[0098] Embodiment 3: can be used as inkjet ink, inkjet ink, textile printing ink, water-based ballpoint pen ink

[0099] Component Weight

[0100] Acid Scarlet GR 0.1%

[0101] Diethylene glycol 10%

[0102] Silicone-polyurethane resin emulsion (resin solid content is 30%) 55%

[0103] Benzophenone 0.3%

[0104] Benzotriazole 0.2%

[0105] Diethylene glycol butyl ether 10%

[0106] Isobutanol 12.4%

[0107] Methyl isobutyl ketone 10%

[0108] Titanate coupling agent 2%

[0109] Preparation method: prepare according to preparation method three. Quantitatively weigh 0.1g of Acid Scarlet GR, dissolve in 10g of diethylene glycol, then add 10g of diethylene glycol butyl ether, 10.4g of isobutanol, 10g of methyl isobutyl ketone, stir well, filter with chronic qualitative filter paper, add organic 55 g of silicone-polyurethane resin emulsion, 0.3 g of diphenmethanone, and 0.2 g of benzotriazole. Dissolve 2g of titanate coupling agent with 2g of isobutanol, add it into the s...

Images