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A kind of LED dual curing water transfer printing ink and preparation method thereof

A dual-curing, water-transfer printing technology, applied to inks, household utensils, applications, etc., can solve the problems of different shrinkage and expansion, cracking and deformation of paint films, etc., and achieve fast curing speed, reduce humidity and problems, and good adhesion.

Active Publication Date: 2021-11-30
GUANGDONG YINCAI TECH CO LTD
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Problems solved by technology

However, due to the fact that light curing and thermal (room temperature self) curing use their own curing systems, this dual curing can solve the problem of complete curing and drying of the full paint film.
However, since photocuring and thermal (normal temperature) curing both use resin systems with their own curing conditions, the paint film is actually a mixture of their own after curing. Due to the influence of temperature and humidity changes, their shrinkage and expansion are different. Cause paint film cracking and deformation

Method used

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  • A kind of LED dual curing water transfer printing ink and preparation method thereof

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Embodiment 1

[0027] Embodiment 1, a new ink for LED dual curing water transfer printing, including the following components and the mass fraction of each component: 55%-70% of acrylic modified resin, 1%-5% of photosensitizer, and 3% of curing agent -8%, photocurable monomer 22%-35%, BYK additive 1%-5%. The acrylic modified resin has multiple photocuring active groups (CH2=CH—COOR (R is a hydrocarbon group)) and thermal curing active groups. Since the acrylic modified resin has a plurality of photocurable active groups and heat curable active groups, the ink of the present invention can be completely cured, and there will be no part of the organic matter remaining in the paint film in the state of a single molecule, and will not cause damage to the paint film. Phenomena such as back sticking, deformation and shedding.

[0028] The thermally curable reactive groups include isocyanate group moieties

[0029] and a hydroxyl moiety (R—OH (R is a hydrocarbyl group)).

[0030] As a more spec...

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Abstract

The invention relates to the technical field of inks, in particular to a novel ink for LED dual-curing water transfer printing and a preparation method thereof. It includes the following components and the mass fraction of each component: acrylic modified resin 55%-70%, photosensitizer 1%-5%, curing agent 3%-8%, and photocurable monomer 22%-35% %, BYK additives 1%‑5%. The acrylic modified resin has multiple photocuring active groups (CH2=CH—COOR (R is a hydrocarbon group)) and thermal curing active groups. The dual-curing ink of the present invention contains only one highly active acrylic modified resin, so the dual-curing ink of the present invention has only one resin system, and the shrinkage and expansion of the dual-curing ink of the present invention are the same, which will not cause cracking and deformation of the paint film.

Description

technical field [0001] The invention relates to the technical field of inks, in particular to a novel ink for LED dual-curing water transfer printing and a preparation method thereof. Background technique [0002] In the field of ink water transfer printing technology, traditional dual curing is a mixture of uv light curing and thermal (normal temperature self) curing. Its main purpose is to solve the incomplete photocuring of the dye system. Due to the light absorption of the dye, the deep coating cannot be completely cured, which will inevitably cause some organic matter to remain in the paint film in a single molecular state. These uncured residues are similar to plasticizers. It gradually migrates over time, causing the paint film to stick back, deform and peel off. In order to solve this problem and avoid risks, paint engineers have introduced the theory of secondary curing, that is, thermal (normal temperature self) curing, that is, dual curing, which is now used by m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/101C09D11/10C09D11/03
CPCC09D11/03C09D11/10C09D11/101
Inventor 刘健
Owner GUANGDONG YINCAI TECH CO LTD
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