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Additive composition and ink

A composition and additive technology, applied in the field of ink, can solve the problems that the color fastness to wet and dry rubbing is only 1 to 2 grades or even below grade 1, and the color depth and vividness of digital printing are reduced, and the color fastness to dry and wet rubbing is achieved. Good, excellent wetting effect, good color development effect

Active Publication Date: 2018-09-14
深圳市墨库图文技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in fact, the inkjet printing technology at home and abroad can basically meet the application requirements for printing color performance and dry and wet rubbing fastness on non-silicone oil-treated pure cotton fabrics; Digital printing on nylon and other fabrics will show a significant decrease in color depth and vividness compared to digital printing on cotton non-silicone oil fabrics. At the same time, the color fastness to dry and wet rubbing is only 1-2 or even below 1, which cannot meet the actual situation at all. application requirements

Method used

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  • Additive composition and ink
  • Additive composition and ink

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preparation example Construction

[0091] A third aspect of the present invention provides the preparation method of the ink, at least including the following steps:

[0092] Stir and mix the humectant, acid-base regulator, surfactant and deionized water to obtain a mixed liquid; add curing agent and resin to it, stir and mix evenly; add pigment dispersion liquid to it, stir and mix evenly; Roughly filter with a filter larger than 1.0 μm, then fine filter with a filter with a pore size of 0.45 μm, and collect the filtrate; debubble the obtained filtrate for 30 minutes to 60 minutes under a vacuum of 0.06 to 0.1 Mpa to obtain the ink.

[0093] The fourth aspect of the present invention provides the application of the ink in a digital printer.

[0094] The selection and matching of resins in ink is a very arduous task: firstly, the analysis of resin molecular chain structure, the suitability of melt flow rate to the print head must be explored through countless tests; secondly, all resins are a mixture , not a ...

Embodiment 1

[0099] Embodiment 1 provides a kind of ink, by weight percentage, at least comprises the following components: pigment dispersion liquid 15%, aqueous polymer resin emulsion 20%, curing agent 3%, acid-base regulator 0.1%, humectant 20% , 0.3% surfactant, 0.1% fungicide, 41.5% water.

[0100] The water-based polymer resin emulsion is a mixture of polyurethane resin emulsion and acrylic-polyurethane resin emulsion, wherein the mass ratio of polyurethane resin emulsion and acrylic-polyurethane resin emulsion is 1:1. The curing agent is a blocked water-based isocyanate curing agent. The surfactant is a mixture of an organic fluorine surfactant and a nonionic surfactant, wherein the mass ratio of the organic fluorine surfactant to the nonionic surfactant is 1:1.

[0101] The pigment dispersion is black pigment dispersion PB7; the polyurethane resin emulsion is Yangsong PU-733; the acrylic-polyurethane resin emulsion is Shanghai Tuojia SC-10. The blocked water-based isocyanate curi...

Embodiment 2

[0105] Embodiment 2 provides a kind of ink, by weight percentage, at least comprises the following components: pigment dispersion liquid 30%, aqueous polymer resin emulsion 30%, curing agent 5%, acid-base regulator 0.1%, humectant 30% , 1.1% surfactant, 0.5% fungicide, 3.3% water.

[0106] The water-based polymer resin emulsion is a mixture of polyurethane resin emulsion and acrylic-polyurethane resin emulsion, wherein the mass ratio of polyurethane resin emulsion and acrylic-polyurethane resin emulsion is 1:6. The curing agent is a blocked water-based isocyanate curing agent. The surfactant is a mixture of silicone surfactant and nonionic surfactant, wherein the mass ratio of silicone surfactant and nonionic surfactant is 3:8.

[0107]The pigment dispersion is black pigment dispersion PB7; the polyurethane resin emulsion is Yoshida Chemical's F401; the acrylic-polyurethane resin emulsion is Contilon WL-0609A. The blocked water-based isocyanate curing agent is Bayer 3175. D...

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Abstract

The invention relates to the field of ink, in particular to an additive composition and ink. The additive composition is prepared from a waterborne polymer resin emulsion and a surfactant, the waterborne polymer resin emulsion is a mixture of a polyurethane resin emulsion and an acrylic acid-polyurethane resin emulsion according to a mass ratio of 1:1-6, and the surfactant comprises an organic fluorine surfactant or an organic silicon surfactant.

Description

technical field [0001] The invention relates to the field of ink, in particular to an additive composition and ink. Background technique [0002] Fabric digital inkjet printing refers to spraying ink containing pigments onto the substrate to be printed through nozzles, and is controlled by a computer to form patterns according to design requirements. According to the performance of the ink system, after appropriate post-treatment, such as baking or calendering, the printed fabric with certain color fastness and vividness can be obtained. Fabric digital inkjet printing is the latest printing technology developed internationally since the 1990s. It integrates precision machinery, computer electronic information, chemical industry, textile printing and dyeing and other disciplines, and is a major breakthrough in traditional printing technology. This high-tech has attracted the attention and attention of dyeing and finishing enterprises and printing machine enterprises all ove...

Claims

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Application Information

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IPC IPC(8): D06P1/52D06P3/24D06P5/30C09D11/30
CPCC09D11/30D06P1/5285D06P3/24D06P5/30
Inventor 左科叶门辉邱伟伟
Owner 深圳市墨库图文技术有限公司
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