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Photocured rosin-based polyester resin for UV offset ink and preparation method of photocured rosin-based polyester resin

An offset printing ink and polyester resin technology, applied in the field of printing ink, can solve the problems of insufficient package wettability and poor substrate adhesion, and achieve the effects of high adhesion fastness, fast curing speed and good wettability

Inactive Publication Date: 2016-10-26
SHANGHAI FEIYA PRINTING INK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a photocurable rosin-based polyester resin for UV offset printing ink and a preparation method thereof, so as to solve the comprehensive performance defects of resins synthesized in the prior art, such as insufficient wettability of pigments and dyes, poor substrate adhesion, etc.

Method used

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  • Photocured rosin-based polyester resin for UV offset ink and preparation method of photocured rosin-based polyester resin
  • Photocured rosin-based polyester resin for UV offset ink and preparation method of photocured rosin-based polyester resin
  • Photocured rosin-based polyester resin for UV offset ink and preparation method of photocured rosin-based polyester resin

Examples

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preparation example Construction

[0032] The present invention also discloses a method for preparing the above-mentioned photocurable rosin-based polyester resin for UV offset printing ink, comprising the following steps:

[0033] (1) Under the protection of an inert gas, mix 10-50 parts of rosin and its derivatives, 10-30 parts of polyols, 20-50 parts of polybasic acids (anhydrides), 0.1-0.5 parts of antioxidants, 0.1-1.0 parts of inhibition Agent and 0.1~1.0 part of catalyst are added to the distillation column, N 2 In the reaction device (apparatus) of protection, thermometer and mixer, first raise the temperature to 130-150°C to melt part of the materials and mix them evenly, then raise the temperature to 170-190°C for 5.0-8.0h, then raise the temperature to 190-230°C for 3.0 ~5.0h;

[0034] (2) Finally, the temperature is raised to 250-280°C and the reaction is continued for 3.0-5.0 hours;

[0035] (3) Cool down to 135-160°C, add 10-25 parts of end-capping agent, heat up to 180-210°C for 1.0-3.0 hours, ...

Embodiment 1

[0039] A kind of UV offset printing ink of the present embodiment comprises the UV offset printing ink that is made by photocuring rosin-based polyester resin for UV offset printing ink, is to adopt and comprise the following steps to make:

[0040] 1. Prepare materials

[0041] Prepare raw materials according to the following weight ratio: 25g phthalic anhydride, 5.0g terephthalic acid, 20.0g isophthalic acid, 10.0g maleic rosin, 15.0g ethylene glycol, 8.0g 1,2-propanediol, 7.0 g trimethylolpropane, 10.0 g oleic acid, 0.1 g methanesulfonic acid, 0.1 g hydroquinone, 0.1 g butyl hydroxyanisole.

[0042] 2. Preparation of photocurable rosin-based polyester resin for UV offset printing ink

[0043] (1) Under the protection of inert gas, 25.0g phthalic anhydride, 5.0g terephthalic acid, 20.0g isophthalic acid, 10.0g maleic rosin, 15.0g ethylene glycol, 8.0g 1,2- Propylene glycol, 7.0g trimethylolpropane, 0.1g methanesulfonic acid, 0.1g hydroquinone, and 0.1g butyl hydroxyanisole...

Embodiment 2

[0059] A kind of UV offset printing ink of the present embodiment comprises the UV offset printing ink that is made by photocuring rosin-based polyester resin for UV offset printing ink, is to adopt and comprise the following steps to make:

[0060] 1. Prepare materials

[0061] Raw materials are prepared according to the following weight ratio: 15.0g isophthalic acid, 5.0g maleic anhydride, 40.0g acrylic rosin, 10.0g maleic rosin, 10.0g ethylene glycol, 5.0g 1,6-hexanediol, 15.0g ten Octalol, 1.0g tetrabutyl titanate, 1.0g p-hydroxyanisole, 0.5g 2,4-di-tert-butyl-p-cresol

[0062] 2. Preparation of photocurable rosin-based polyester resin for UV offset printing ink

[0063] (1) Under the protection of inert gas, 15.0g of isophthalic acid, 5.0g of maleic anhydride, 40.0g of acrylic rosin, 10.0g of maleic rosin, 10.0g of ethylene glycol, 5.0g of 1,6-hexanediol, 1.0 g tetrabutyl titanate, 1.0 g p-hydroxyanisole, and 0.5 g 2,4-di-tert-butyl-p-cresol are added to a four-necked f...

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Abstract

The invention discloses photocured rosin-based polyester resin for UV offset ink and a preparation method of the photocured rosin-based polyester resin. The photocured rosin-based polyester resin is prepared from raw materials in parts by weight as follows: 10-50 parts of rosin and derivatives thereof, 20-50 parts of polyacids (anhydride), 10-30 parts of polyols, 10-25 parts of an end-capping agent, 0.1-0.5 parts of an antioxidant, 0.1-1.0 part of a polymerization inhibitor and 0.1-1.0 part of a catalyst. The invention further discloses the UV offset ink prepared from the photocured rosin-based polyester resin. The rosin-based polyester resin is prepared from the rosin and other cheap and available raw materials, and a synthesis process is simple and environment-friendly; the prepared UV offset ink has the advantages of high curing speed, higher adhesion, better wettability, better flow transmission and the like, the use requirements of the offset ink can be met, and the photocured rosin-based polyester resin is applicable to toxicity-free UV photocured printing ink required by printing.

Description

technical field [0001] The invention relates to the field of printing inks, and relates to a photocurable resin and a preparation method thereof, in particular to a photocurable rosin-based polyester resin for UV offset printing ink and a preparation method thereof. Background technique [0002] As countries around the world are increasingly concerned about environmental protection and related pollution prevention and control regulations are becoming increasingly stringent, the resin manufacturing industry has undergone revolutionary changes in recent years, that is, replacing traditional solvent-based resins with low-pollution environmentally friendly resins. At present, the general environment-friendly resins sold on the market mainly include solid resins, water-based resins and UV resins. UV resin often uses active UV monomers as solvents, and its biggest advantage is to replace organic solvents with active UV monomers, avoiding the use of alcohol, ketone esters and benze...

Claims

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Application Information

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IPC IPC(8): C08G63/54C09D11/101C09D11/104
CPCC08G63/54C09D11/101C09D11/104
Inventor 张滨义任天翔鞠中斌
Owner SHANGHAI FEIYA PRINTING INK CO LTD
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