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Composite board silk-screen printing ink with boiling permeation resistance and preparation method thereof

A technology of screen printing ink and composite board, which is applied in the field of coatings, can solve the problems of gaps, inability to provide connection between resin and pigment filler, and inability to solve water boiling penetration, etc., to increase crosslinking density, increase grinding fineness, and improve water boiling resistance The effect of adhesion

Inactive Publication Date: 2020-05-29
SHENZHEN INKTOP INK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some disadvantages of this method are that it cannot solve the problem of boiled penetration
The specific problem is that these curing agents cannot provide a sufficient connection between the resin and the pigment and filler in the ink, resulting in a gap between the resin and the pigment and filler, so that it cannot achieve good water penetration resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Use liquid saturated polyester resin with a solid content of 55%, and the ratio is about 55-60%. The carbon black is REGAL 400R from Cabot, and the ratio is about 12-14%. The dispersant is BYK-163, and the ratio is about 6-8%. , the fillers are talcum powder and fumed silica, the proportions are 5-10% and 0.5-2% respectively, the proportion of defoaming agent is 0.8-1.3%, the proportion of leveling agent is 0.2-0.4%, and the proportion of isophorone solvent 10-15%; disperse the mixture at high speed for 15 minutes, and grind it for 5 times with a three-roller machine, and the finished ink fineness is 3-5um; add 3% coupling agent and 10% XDI curing agent to dilute 100 grams of finished ink Appropriate amount of agent can be dispersed evenly at a slow speed.

[0030] Element Proportion(%) Element Proportion(%) saturated polyester resin 55.00 coupling agent 3％ REGAL 400R 14.00 XDI curing agent 10％ BYK-163 8.00 Thinner 10％ talcu...

Embodiment 2

[0032] Use liquid saturated polyester resin with a solid content of 55%, and the proportion is about 45-50%. The titanium dioxide is DuPont’s R902, the proportion is about 35-40%. The dispersant is BYK-110, the proportion is about 1%, and the filler is talcum powder. , the proportion is 5-10%, fumed silica, the proportion is 0.5-2%, the proportion of defoamer is 0.5-0.8%, the proportion of leveling agent is 0.2-0.4%, the proportion of isophorone solvent is 10-15% %; Disperse the mixture at high speed for 15 minutes, grind it three times with a three-roller machine, and the finished ink fineness is 3-5um; add 3% coupling agent, XDI curing agent 10%, appropriate amount of diluent, slowly Quickly disperse evenly.

[0033] Element Proportion(%) Element Proportion(%) saturated polyester resin 45.00 coupling agent 3％ R902 40.00 XDI curing agent 10％ BYK-110 1.00 Thinner 10％ talcum powder 5.00 fumed silica 0.50 Defoamer ...

Embodiment 3

[0035] Use liquid saturated polyester resin with a solid content of 55%, and the ratio is about 55-60%. The organic pigment is German BASF (Ciba) Paliogen K4180 (PR179), and the ratio is about 10-12%. The dispersant is BYK-163, and the ratio is About 5-6%, the filler is talcum powder and fumed silica, the proportions are 5-10% and 0.5-2%, the proportion of defoamer is 0.8-1.3%, and the proportion of leveling agent is 0.2-0.4%. The proportion of pherone solvent is 10-15%; disperse the mixture at high speed for 15 minutes, grind it 4 times with a three-roller machine, and the fineness of the finished ink is 3-5um; add 3% coupling agent to 100 grams of finished ink, and then cure it with XDI 10% diluent, appropriate amount of diluent, and slow dispersion is enough.

[0036] Element Proportion(%) Element Proportion(%) saturated polyester resin 60.00 coupling agent 3％ K4180 10.00 XDI curing agent 10％ BYK-163 5.00 Thinner 10％ talcum powde...

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PUM

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Abstract

The invention relates to composite board silk-screen printing ink with boiling permeation resistance and a preparation method of the composite board silk-screen printing ink. The composite board silk-screen printing ink is prepared by adding a silane coupling agent accounting for 3% of the weight of the ink into the ink so as to promote connection between a resin and fillers in an ink formula. Thepreparation method comprises the following steps: (1) dispersing a mixture at a high speed for 15 minutes, and grinding for 3-5 times by a three-roller machine to obtain a printing ink finished product with the fineness of 3-5 microns; and (2) adding 3% of a coupling agent, 10% of an XDI curing agent and 10% of a diluent into 100g of the finished ink, and slowly and uniformly dispersing. According to the invention, the silane coupling agent is added into the ink formula and matched with fillers such as talcum powder, fumed silica and the like to establish connection bridges between the resinand the fillers, so that the crosslinking density and wrapping of the organic resin and the inorganic fillers are improved, and the problems that a film layer has different colors after being boiled in water, and marks are formed on the film layer by pasting auxiliary materials in water are solved.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a screen-printing ink for composite boards with anti-water boiling penetration and a preparation method thereof. Background technique [0002] At present, the processing technology of composite boards is basically combined with electroplating. The electroplating materials are generally metal substances, such as: titanium, niobium, nickel, etc., and then the ink is removed from the electroplating layer by silk screen printing. The main resin with good adhesion on the metal is generally saturated polyester. resin. Composite board screen printing ink will add isocyanate curing agent during use, such as: XDI, TDI, etc., the main function is to improve the performance of ink after boiling by cross-linking and curing with resin. However, some shortcomings of this method are that the problem of boiled penetration cannot be solved. The specific problem is that these curing agents cann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03C09D11/104C09D11/037
CPCC09D11/03C09D11/104C09D11/037
Inventor 司徒羡添
Owner SHENZHEN INKTOP INK TECH CO LTD