Rotary screen printing white ink and preparation method thereof

A rotary screen printing, white ink technology, applied in the field of printing ink, can solve the problems of limiting the application and development of rotary screen printing process, unbalanced drying speed and adhesion, achieve excellent drying speed and adhesion, optimize look and feel and touch, Process feasible effect

Inactive Publication Date: 2021-04-13
中山布瑞特环保油墨有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the white ink used for rotary screen printing cannot realize the simultaneous printing of solid and text. Generally, two inks are required to meet the process requirements, and the drying speed and adhesion cannot be balanced, which greatly limits the rotary screen printing process. application and development

Method used

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Examples

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Effect test

preparation example Construction

[0052] The second aspect of the present invention provides a method for preparing the rotary screen printing white ink of the aforementioned first aspect, comprising the following steps:

[0053] Mixing polyurethane acrylate oligomer, titanium dioxide, dipentaerythritol hexaacrylate and dispersant to obtain the first system;

[0054] Mixing the ultraviolet photoinitiator, hexanediol diacrylate, leveling agent, defoamer and polymerization inhibitor to obtain the second system;

[0055] The first system is added to the second system to obtain the rotary screen printing white ink.

[0056] The above preparation method is simple and easy to operate, and does not require the assistance of any large-scale equipment, and can safely and efficiently prepare the rotary screen printing white ink that can make solid printing and text printing have good effects when printing simultaneously. Wherein, the preparation sequence of the first system and the second system has no influence on the...

Embodiment 1

[0064] The rotary screen printing white ink of the present embodiment comprises following components:

[0065] Difunctional urethane acrylate oligomer (relative molecular weight 1500Mn, Allnex EBECRYL210): 8 parts by mass

[0066] Hexafunctional urethane acrylate oligomer (relative molecular weight 1000Mn, Allnex EBECRYL1291): 17 parts by mass

[0067] UV photoinitiator (ethyl 2,4,6-trimethylbenzoylphenyl phosphonate): 6 parts by mass

[0068] Titanium dioxide: 45 parts by mass

[0069] Dipentaerythritol hexaacrylate: 6.2 parts by mass

[0070] Hexylene glycol diacrylate: 16 parts by mass

[0071] Dispersant (triethylhexyl phosphoric acid): 0.6 parts by mass

[0072] Acrylic leveling agent: 0.7 parts by mass

[0073] Polyether defoamer: 0.3 parts by mass

[0074] Inhibitor (tris(N-nitroso-N-phenylhydroxylamine) aluminum salt): 0.2 parts by mass

[0075] The preparation method of the rotary screen printing white ink of the present embodiment comprises the following steps...

Embodiment 2

[0080] The rotary screen printing white ink of the present embodiment comprises following components:

[0081] Difunctional polyurethane acrylate oligomer (relative molecular weight 1500Mn, Allnex EBECRYL210): 10 parts by mass

[0082] Hexafunctional urethane acrylate oligomer (relative molecular weight 1000Mn, Allnex EBECRYL1291): 15 parts by mass

[0083] UV photoinitiator (ethyl 2,4,6-trimethylbenzoylphenyl phosphonate): 8 parts by mass

[0084] Titanium dioxide: 42 parts by mass

[0085] Dipentaerythritol hexaacrylate: 8 parts by mass

[0086] Hexylene glycol diacrylate: 15.2 parts by mass

[0087] Dispersant (triethylhexyl phosphoric acid): 0.6 parts by mass

[0088] Acrylic leveling agent: 0.7 parts by mass

[0089] Amide defoamer: 0.3 parts by mass

[0090] Inhibitor (tris(N-nitroso-N-phenylhydroxylamine) aluminum salt): 0.2 parts by mass

[0091] The preparation method of the rotary screen printing white ink of the present embodiment comprises the following step...

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Abstract

The invention provides rotary screen printing white ink and a preparation method thereof. The rotary screen printing white ink comprises the components in parts by mass: 15-30 parts of a polyurethane acrylate oligomer, 3-10 parts of an ultraviolet initiator, 40-55 parts of titanium dioxide, 5-10 parts of dipentaerythritol hexaacrylate, 10-20 parts of hexanediol diacrylate, 0.5-1 part of a dispersing agent, 0.5-2 parts of a leveling agent, 0.2-2 parts of an antifoaming agent and 0.1-0.5 part of a polymerization inhibitor, wherein the polyurethane acrylate oligomer comprises a bifunctional polyurethane acrylate oligomer and a hexafunctional polyurethane acrylate oligomer; and the defoaming agent is selected from one or more of a polyether defoaming agent, an amine defoaming agent and an amide defoaming agent. The rotary screen printing white ink shows a satisfactory printing effect when performing field printing and character printing at the same time, and has excellent and balanced drying speed and adhesion at the same time.

Description

technical field [0001] The invention relates to a white ink, in particular to a rotary screen printing white ink and a preparation method thereof, belonging to the field of printing ink. Background technique [0002] During the development of printing technology, especially the development of label printing, with the high demand for product packaging in terms of vision and touch, rotary screen printing can provide a strong raised touch, improve the exquisiteness of products, and improve The eye-catching effect of end products is regarded as a powerful weapon to seize the high-end market, and its share in the printing market is gradually increasing. [0003] The current rotary screen printing process includes solid printing process and text printing process. Among them, the solid printing process means that the entire printing page is covered with ink and has only one color; the text printing process refers to the juxtaposition of multiple dots of different colors , Intersec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/101C09D11/03
CPCC09D11/101C09D11/03
Inventor 陈醒记
Owner 中山布瑞特环保油墨有限公司
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