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Tax stamp ink digital ink jet and preparation method thereof

A printing ink, digital inkjet technology, applied in ink, dyeing, textile and papermaking, etc., can solve the problems of easy delamination or precipitation, complex production process, poor stability, etc., to achieve good dispersion stability and storage stability , shorten the process flow, increase the effect of dispersion stability

Inactive Publication Date: 2005-10-26
SUNVIM GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the increasingly prominent shortcomings of dye inks in digital inkjet printing of textiles, such as (1) the ink is not universal, different fibers need to use different inks, and ink replacement requires cleaning the nozzles and pipelines
(2) The production process is complicated, and it is necessary to pre-treat the fabric to apply dye fixing agents and catalysts on the fabric. After printing, the fabric needs to be steamed, washed and other post-treatments to fix the dye on the fiber and remove unfixed dyes, etc., there is a certain degree of environmental pollution
Moreover, the stability of the pigment dispersion system with coarse particle size is relatively poor, and it is easy to stratify or precipitate during storage and use, which affects the service life of the equipment

Method used

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  • Tax stamp ink digital ink jet and preparation method thereof
  • Tax stamp ink digital ink jet and preparation method thereof
  • Tax stamp ink digital ink jet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation of embodiment 1 red ink

[0027] Get 4g maleic anhydride-methyl acrylate-butyl methacrylate copolymer ( M n ‾ = 10000 ± 100 , Molar ratio maleic anhydride: methyl acrylate: butyl methacrylate=1:0.5:1), add 0.4g sodium hydroxide, 51g deionized water, heat to dissolve the polymer completely, then add 5g of C.I. pigment red in turn 112, 1g of OP-15 emulsifier, 3g of ethanol, 15g of diethylene glycol, 10g of ethylene glycol, 10g of glycerol, and 1g of n-butanol were stirred with a mixer at 600 rpm for 25 minutes, emulsified Stir at a high speed of 10,000 rpm for 50 minutes, pulverize with a sand mill for 30 minutes, adjust the pH value to 8, and filter with a 0.5-1 μm microporous membrane to obtain a water-based pigment magenta ink. The physical properties of this ink at 20°C are as follows: surface tension σ=28.7mN / m, viscosity η=5.5...

Embodiment 2

[0028] The preparation of embodiment 2 yellow ink

[0029] Get 3g methyl methacrylate-maleic anhydride-acrylonitrile-butyl acrylate copolymer ( M n ‾ = 30000 ± 200 , Molar ratio methyl methacrylate: maleic anhydride: acrylonitrile: butyl acrylate=1:1.5:0.3:1), add 0.5g potassium hydroxide, 54g deionized water, heat to dissolve the polymer completely, and then add 6g of C.I. Pigment Yellow 17, 1.5g of Tween 80, 5g of N-methyl-2-pyrrolidone, 5g of 1,3-propylene glycol, 10g of polyethylene glycol 200, 10g of triethylene glycol, 5g of iso Propanol was stirred with a mixer at 500 rpm for 50 minutes, an emulsifier at 15,000 rpm at a high speed for 70 minutes, and a sand mill for 120 minutes. Finally, adjust the pH value to 7 and filter with a 0.5-1 μm microporous membrane. That is, the water-based pigment yellow ink is obtained. The physical properties of th...

Embodiment 3

[0030] The preparation of embodiment 3 blue ink

[0031] Get 5g styrene-maleic anhydride-acrylamide-butyl methacrylate copolymer ( M n ‾ = 25000 ± 200 , Molar ratio styrene: maleic anhydride: acrylamide: butyl methacrylate=1:2:0.5:1), add 20% ammonia water 5g, deionized water 58g, heat to make it dissolve completely, then add 4g of C.I. Pigment blue 56, 2g Pingpingjia O-25, 3g isopropanol, 3g triethanolamine, 5g 1,6-hexanediol, 10g diethylene glycol, 5g polyethylene glycol 400, 5g 2-pyrrolidone , stir with a mixer at 800 rpm for 40 minutes, emulsifier at 20,000 rpm for 30 minutes at high speed, sand mill for 80 minutes, finally adjust the pH value to 6, and filter with a microporous membrane of 0.5 to 1 μm to obtain Water-based pigment blue ink. The physical properties of this ink at 20°C are as follows: surface tension σ=29.8mN / m, viscosity η=4.85cP, ...

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Abstract

The present invention uses polycarboxylic acid type high-molecular copolymer as dispersing agent and fixing agent to prepare superfine pigment ink as ink-jet printing ink. It is characterized by that the pigment dispersing agent and fixing agent are made into the same compound, after it is jetted and printed, the high temperature can be used to fix the pigment on the fibre and obtain required fastness. The average grain size of pigment granules prepared by said method is less than 300 nm.

Description

technical field [0001] A digital inkjet printing ink and a preparation method thereof relate to the technical fields of polymer chemistry and textile inkjet printing. technical background [0002] Digital inkjet printing is a new frontier topic for the future development of computer inkjet printing technology. Compared with traditional printing technology, digital inkjet printing technology for textiles has the following main advantages: (1) High printing fineness, resolution can reach 1440dpi, get photo effects, while the traditional screen printing can only reach 200dpi. The substantial increase in printing fineness provides designers with a wealth of imagination space, making it possible to produce high-definition printed textiles. (2) There is no need for plate making, and the batch size is flexible. It can realize single-piece production or mass production, and the delivery speed is fast. Traditional printing requires plate making, color matching, and proofing in adva...

Claims

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Application Information

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IPC IPC(8): C09D11/326C09D11/36
Inventor 房宽峻张霞王潮霞
Owner SUNVIM GROUP
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