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Water-based pearlescent ink binder for decoration paper

A pearlescent ink, water-based technology, used in inks, applications, household appliances, etc., can solve the problems of loss of pearlescent effect, poor water resistance of ink, corrosion of pearlescent powder, etc. Effect

Inactive Publication Date: 2019-11-12
上海欧畅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

[0004] The pearlescent effect of pearlescent ink is mainly realized by pearlescent powder, and the main raw material of pearlescent powder is mica, which is insoluble in the ink system and exists in the solution in the form of solid powder, which is prone to sedimentation. In actual use, pearlescent ink needs to be prepared now In current use, the remaining materials are difficult to store for a long time. On the one hand, the system will settle and stratify; Air permeability can better present the ink color and pearlescent effect in the post-processing process; in addition, due to the use of water-based varnish, the water resistance of the ink is poor, and these problems need to be resolved

Method used

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  • Water-based pearlescent ink binder for decoration paper

Examples

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preparation example Construction

[0032] In some embodiments, the preparation method of the modified casein includes the following steps: dissolving the casein in alkaline water, heating to 70-80°C, adding graft monomer and 0.1wt% potassium persulfate, Concentrate to the specified solid content at 85°C, and cool to obtain the obtained product.

[0033] In some preferred embodiments, the preparation method of the modified casein includes the following steps: disperse the casein (CAS No. 9000-71-9) in water, adjust the pH to alkaline, heat to 75°C, add The modified monomer and 10 ml of 0.1wt% potassium persulfate were concentrated at 80°C and cooled to obtain the obtained product.

[0034] In some preferred embodiments, the preparation method of the modified casein includes the following steps: stirring and dispersing 15g of casein in 100mL of water, adding ammonia water dropwise, adjusting the pH to >8, heating to 75°C, adding the modified monomer and 10 ml of 0.1wt% potassium persulfate, concentrated at 80°C,...

Embodiment 1

[0068] Embodiment 1 provides a water-based pearlescent ink binder for decorative paper, and its preparation raw materials include: 10.5% resin, 0.6% film-forming aid, 0.1% color-fixing agent, 0.3% wetting agent, anti- Precipitating agent 1%, defoamer 0.1%, bactericide 0.03%, and the balance is deionized water.

[0069] The resin is a mixture of waterborne polyurethane resin, casein and polyvinylpyrrolidone; the weight ratio of the waterborne polyurethane resin, casein and polyvinylpyrrolidone is 2.75:1.5:1.

[0070] The casein is modified casein, and its preparation method includes the following steps: stirring and dispersing 15g of casein in 100mL of water, adding ammonia water dropwise, adjusting the pH>8, heating to 75°C, adding modified monomer and 10ml of 0.1 wt% potassium persulfate, concentrated at 80°C, cooled, to get that; the amount of the modified monomer is 30wt% of the casein; the modified monomer of the modified casein is caprolactam and methylol Mixing of acryl...

Embodiment 2

[0079] Embodiment 2 provides a water-based pearlescent ink binder for decorative paper, and its preparation raw materials include: 9% resin, 0.5% film-forming aid, 0.05% color-fixing agent, 0.2% wetting agent, anti- Precipitating agent 0.5%, defoamer 0.1%, bactericide 0.01%, and the balance is deionized water.

[0080] The resin is a mixture of waterborne polyurethane resin, casein and polyvinylpyrrolidone; the weight ratio of the waterborne polyurethane resin, casein and polyvinylpyrrolidone is 3:2:1.

[0081] The casein is modified casein, and its preparation method includes the following steps: stirring and dispersing 15g of casein in 100mL of water, adding ammonia water dropwise, adjusting the pH>8, heating to 75°C, adding modified monomer and 10ml of 0.1 wt% potassium persulfate, concentrated at 80°C, cooled, to get that; the amount of the modified monomer is 30wt% of the casein; the modified monomer of the modified casein is caprolactam and methylol Mixing of acrylamide...

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Abstract

The invention discloses a water-based pearlescent ink binder for decoration paper, wherein the preparation raw materials comprise, by weight, 9-12% of a water-soluble resin, 0.5-0.7% of a film-formingauxiliary agent, 0.05-0.2% of a color fixing agent, 0.2-0.5% of a wetting agent, 0.5-1.5% of an anti-settling agent, 0.1-0.3% of an antifoaming agent, 0.01-0.05% of a bactericide, and the balance ofdeionized water. According to the present invention, the pearl powder pigment paste prepared from the ink binder has good dispersion stability, can be stored for a long time, does not easily generatesedimentation, layering and other phenomena of pearl powder, and cannot affect the color developing caused by gloss loss due to corrosion on pearl powder; and the product has excellent characteristicsof good printing adaptability, easy operation, large powder loading, no shell forming during high temperature pressing plate, no edge warping during scratching, excellent water resistance and the like.

Description

technical field [0001] The invention relates to the field of ink coatings, in particular to a water-based pearlescent ink binder for decorative paper. Background technique [0002] Ink binder is an important part of printing ink. During the printing process, the ink's rheology, viscosity, film-forming property, color fixation, water resistance and other physical properties mainly depend on the binder. With the improvement of people's awareness of environmental protection, ink binders have gradually abandoned the use of organic solvents as the main carrier component of the system, avoiding the environmental hazards caused by the volatilization of organic solvents, and more and more water-based ink binders have appeared on the market Not only that, but the appearance of pearlescent ink has also enriched people's lives. [0003] Pearlescent pigments usually refer to a class of pigments with pearl luster, which are developed through rigorous processing techniques such as surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/102C09D11/04C09D11/106C09D11/107C09D11/037
CPCC09D11/037C09D11/04C09D11/102C09D11/106C09D11/107
Inventor 黄清根王正青李扬勇黄惠昌黄泽彬
Owner 上海欧畅新材料科技有限公司
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