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Water-based polyketone-modified polyurethane emulsion for water-based gravure ink and its preparation method and application

A polyurethane emulsion and water-based polyurethane technology, applied in the field of water-based polyurethane, can solve the problems of no adhesion, no adhesion of BOPP film, etc., and achieve the effect of good water resistance, solving the environment and human body unfriendly, and excellent adhesion.

Active Publication Date: 2021-06-01
禾丰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional water-based polyurethane ink has good adhesion to PET film, but almost no adhesion to BOPP film, even if BOPP film is corona treated, water-based polyurethane ink has almost no adhesion to it

Method used

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  • Water-based polyketone-modified polyurethane emulsion for water-based gravure ink and its preparation method and application
  • Water-based polyketone-modified polyurethane emulsion for water-based gravure ink and its preparation method and application

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Embodiment 1

[0031] (1) Preparation of water-based polyurethane emulsion:

[0032] Put 100g of hydroxyl-terminated polybutadiene (hydroxyl value: 101mgkoH / g), 45g of isophorone diisocyanate (IPDI) into a three-necked flask, heat up to 110°C for 1.5h, cool down to 80°C, and add 170g of butanone , then add 9g dimethylolpropionic acid (DMPA), 5g Yermer TM N120, react at 80°C for 3h, cool down to 30°C, add 18.8g of 20% by mass KOH ethanol solution, react for 15min, add 4g of 90% solid content of sodium diaminesulfonate aqueous solution (PPS) for 30min, and then Add 318g of pure water and stir at high speed to form a stable homogeneous liquid, then add 5g of isophorone diamine (IPD), react for 45min, heat up to 50-80°C, remove methyl ethyl ketone in a vacuum, and obtain a water-based solution with a solid content of 35%. Polyurethane semipermeable emulsion.

[0033] (2) Preparation of water-based polyketone emulsion:

[0034] Get 200g mass fraction and be the anhydrous methyl ethyl ketone s...

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Abstract

The invention relates to a water-based polyketone-modified polyurethane emulsion for water-based gravure printing ink and a preparation method and application thereof, belonging to the technical field of water-based polyurethane. The water-based gravure ink is a water-based polyketone-modified polyurethane emulsion, which comprises the following components in terms of mass percentage: 77%-85% of the water-based polyurethane emulsion, and 15%-23% of the water-based polyketone emulsion. The water-based gravure printing ink water-based polyketone-modified polyurethane emulsion that the present invention makes can make the water-based ink have good adhesion to the BOPP film through corona treatment; The non-toxic polyurethane emulsion can be widely used in water-based gravure printing inks, which solves the unfriendly environment and human body caused by the volatile organic solvents in traditional BOPP film printing, and the safety problems that cause the ink to be flammable.

Description

technical field [0001] The invention belongs to the technical field of water-based polyurethane, and in particular relates to a water-based polyketone-modified polyurethane emulsion for water-based gravure printing ink and a preparation method and application thereof. Background technique [0002] Today, with the increasing awareness of environmental protection, water-based inks are more and more popular because they do not contain volatile organic solvents. At present, domestic packaging film printing mainly adopts gravure printing, and its substrates mainly include PET, BOPP, NY film, etc. Therefore, it has become an inevitable trend to use water-based ink in film gravure printing. [0003] The adhesion of water-based gravure ink is the ability of water-based ink and the surface of the printing film to bond and attract each other through physical / chemical interactions. The film-forming resin in water-based gravure ink is the main factor affecting the adhesion of water-base...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/102C08G18/66C08G18/69C08G18/48C08G18/34C08G18/32
CPCC08G18/3228C08G18/3234C08G18/348C08G18/4825C08G18/4833C08G18/6685C08G18/6692C08G18/69C09D11/102
Inventor 丁军杨富分
Owner 禾丰新材料科技有限公司