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Water-based ink, preparation method thereof and application of water-based ink to low-surface-energy base material

A water-based ink and base material technology, applied in ink, applications, household appliances, etc., can solve the problems of less surface active groups, low surface energy, high VOC content, etc., and achieve simple preparation process, excellent scratch resistance, and strong adhesion big effect

Inactive Publication Date: 2021-08-13
广州化工研究设计院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Substrates such as polyethylene, polypropylene, and polyamide have low surface energy, few surface active groups, and are difficult to be wetted. It is difficult to print with ink, and they are prone to peeling and color fading.
[0003] Solvent-based inks for woven bag printing have the characteristics of fast drying speed and high adhesion fastness, and have been widely used in the past few decades. However, the high VOC content of solvent-based inks will not only pollute the environment, but also Can harm the health of printing operators
At present, some printing factories have switched to water-based ink for woven bag printing, but the water-based ink products on the market generally have problems such as low adhesion fastness, easy to fall off, and no scratch resistance, and the use effect is comparable to that of solvent-based inks. There is still a large gap than

Method used

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  • Water-based ink, preparation method thereof and application of water-based ink to low-surface-energy base material
  • Water-based ink, preparation method thereof and application of water-based ink to low-surface-energy base material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of water-based ink, its preparation method comprises the following steps:

[0038] 1) 20 parts by mass of alkali-soluble acrylic resin 678 solution (solid content 35%), 1 mass part of defoamer Tego Airex 902W and 39 mass parts of water are added to the material tank, the stirring speed is adjusted to 300r / min, stirred for 5min, and then 40 mass parts of phthalocyanine green G are added , adjust the stirring speed to 500r / min, stir for 30min, then transfer the material to the sand mill, turn on the cooling water of the sand mill, turn on the sand mill for circular grinding, and grind to a fineness of less than 10 μm to obtain a water-based color paste;

[0039] 2) 43 parts by mass of pure acrylic emulsion, 10 parts by mass of water-based liquid petroleum resin, 40 parts by mass of water-based color paste, 0.5 parts by mass of wetting agent Tego OT-75, 1 part by mass of monoethanolamine, 2.5 parts by mass of The ultra-high molecular weight polydimethylsiloxane wa...

Embodiment 2

[0041] A kind of water-based ink, its preparation method comprises the following steps:

[0042] 1) 20 parts by mass of alkali-soluble acrylic resin 678 solution (solid content 35%), 1 mass part of defoamer Tego Airex 902W and 39 mass parts of water are added to the material tank, the stirring speed is adjusted to 300r / min, stirred for 5min, and then 40 mass parts of phthalocyanine green G are added , adjust the stirring speed to 500r / min, stir for 30min, then transfer the material to the sand mill, turn on the cooling water of the sand mill, turn on the sand mill for circular grinding, and grind to a fineness of less than 10 μm to obtain a water-based color paste;

[0043] 2) 43 parts by mass of styrene-acrylic emulsion, 9 parts by mass of water-based terpene tackifying resin, 40 parts by mass of water-based color paste, 1 part by mass of wetting agent Tego OT-75, 1.5 parts by mass of monoethanolamine, 2 parts by mass of ultra-high molecular weight polydimethylsiloxane aque...

Embodiment 3

[0045] A kind of water-based ink, its preparation method comprises the following steps:

[0046] 1) 20 parts by mass of alkali-soluble acrylic resin 678 solution (solid content 35%), 1 mass part of defoamer Tego Airex 902W and 39 mass parts of water are added to the material tank, the stirring speed is adjusted to 300r / min, stirred for 5min, and then 40 mass parts of phthalocyanine green G are added , adjust the stirring speed to 500r / min, stir for 30min, then transfer the material to the sand mill, turn on the cooling water of the sand mill, turn on the sand mill for circular grinding, and grind to a fineness of less than 10 μm to obtain a water-based color paste;

[0047] 2) 39 parts by mass of styrene-acrylic emulsion, 8 parts by mass of water-based modified rosin resin, 45 parts by mass of water-based color paste, 1 part by mass of wetting agent Digo OT-75, 1.5 parts by mass of triethanolamine, 2 Parts by mass of polyethylene wax emulsion, 0.5 parts by mass of defoamer T...

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PUM

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Abstract

The invention discloses water-based ink, a preparation method thereof and application of the water-based ink to a low-surface-energy base material. The water-based ink is prepared from an acrylic emulsion, tackifying resin, water-based color paste, a wetting agent, a pH stabilizer, a scratch-resistant additive, a defoaming agent, a slow drying agent and a thickening agent. The preparation method comprises the following steps: firstly, grinding the water-based color paste until the fineness is less than 10 microns; and mixing the acrylic emulsion, the tackifying resin, the water-based color paste, the wetting agent, the pH stabilizer, the scratch-resistant additive, the defoaming agent and the slow drying agent, adding the thickening agent, continuously conducting mixing, and conducting filtering to obtain the water-based ink. The water-based ink disclosed by the invention can be used for low-surface-energy base materials such as polyethylene, polypropylene and polyamide, and is high in adhesion fastness, excellent in scratch resistance, simple in preparation process, low in VOC (Volatile Organic Compounds), safe and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of water-based ink, in particular to a water-based ink, a preparation method thereof, and an application for low surface energy substrates. Background technique [0002] Woven bag, also known as snakeskin bag, is a common packaging bag in daily life, mainly used for packaging chemical raw materials, construction raw materials, food, etc. Woven bags are generally made of polyethylene, polypropylene and other plastic materials by extrusion, stretching into flat wire and weaving. Substrates such as polyethylene, polypropylene, and polyamide have low surface energy and few surface active groups, making it difficult to be wetted. It is difficult to print with ink, and they are prone to problems of peeling and color fading. [0003] Solvent-based ink for woven bag printing has the characteristics of fast drying speed and high adhesion fastness, and has been widely used in the past few decades. However, the high V...

Claims

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Application Information

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IPC IPC(8): C09D11/107C09D11/03
CPCC09D11/107C09D11/03
Inventor 莫杨妙陈绵锋张奕熙彭少柱田巧林宏峰
Owner 广州化工研究设计院有限公司