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Multifunctional paint used for outer package of wine box and preparation method thereof

An outer packaging, multi-functional technology, applied in the direction of paper coating, coating, no pigment coating, etc., can solve the problems of high storage risk, restricting the development of vacuum aluminized film-coated cardboard, low product quality, etc., and achieve process adaptation. Wide property, excellent adhesion fastness, good printing adaptability

Active Publication Date: 2015-03-11
SHANGHAI WEIKAI CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the soft texture of the OPP film, large tensile deformation, low temperature resistance, and poor thermal stability under heating and pressure conditions, the film deformation is serious, the molded brightness is poor, and as the storage time prolongs, the rainbow effect gradually fades, seriously These all lead to low product quality and high storage risks, which seriously restrict the development of vacuum aluminum-coated film-coated cardboard for high-end wine box outer packaging.
[0004] In response to these problems, there has been a trend in the market to replace the existing OPP film-coated cardboard with vacuum-coated metal-coated PET film for the outer packaging of high-end wine boxes. Not keeping up, under this opportunity, it becomes particularly urgent to develop a multi-functional coating for PET-coated cardboard in the field of high-end wine box outer packaging to meet market demand.

Method used

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  • Multifunctional paint used for outer package of wine box and preparation method thereof
  • Multifunctional paint used for outer package of wine box and preparation method thereof
  • Multifunctional paint used for outer package of wine box and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment relates to the preparation of a multifunctional coating for wine box outer packaging, comprising the following steps:

[0031] A. Prepare raw materials according to the components and parts by weight shown in Table 1:

[0032] B. Put the solvent in the reaction kettle, turn on the stirring device, stir at 80rpm for 30min, and heat up to 50°C;

[0033] C. Put the resin components (functional acrylate resin, aldehyde and ketone resin and low molecular weight cellulose acetate butyrate resin) into the reactor, control the stirring rate to 80rpm, and stir for 2h to fully dissolve the resin components;

[0034] D. When the resin component is completely dissolved, put the additives into the reaction kettle, control the stirring rate to 80rpm, stir for 20min until the additives are fully dispersed and evenly, and filter to obtain the final product.

[0035] In this embodiment, the functional polyacrylate resin is a hydroxyl-containing acrylic resin with a glas...

Embodiment 2

[0038] The preparation of the multifunctional coating for wine box outer packaging in this example is the same as in Example 1, except that the stirring time of the solvent in step B is 40 minutes, the temperature is raised to 60 ° C, and the stirring rate in step C is 200 rpm. The stirring time is 5 h; the stirring speed in step D is 120 rpm, and the stirring time is 30 min.

[0039] In this embodiment, the functional polyacrylate resin is a functional acrylic resin containing both hydroxyl and carboxyl groups, its glass transition temperature is 80°C, and its molecular weight is 35,000 to 52,000; the hydroxyl value of the aldehyde and ketone resin is 90 mgKOH / g, the glass transition temperature is 60°C, and the molecular weight is 600-1000; the glass transition temperature of the low molecular weight cellulose acetate butyrate resin is 80°C, and the molecular weight is 16,000-19,000.

[0040] In this embodiment 2, because the functional coating contains a high proportion of...

Embodiment 3

[0042] The preparation of the multifunctional coating for wine box outer packaging in this example is the same as in Example 1, the difference is that in step B, the stirring time of the solvent is 60min, and the temperature is raised to 70°C; in step C, the stirring rate is 250rpm, and the stirring The time is 6h; the stirring rate in step D is 150rpm, and the stirring time is 40min.

[0043] In this embodiment, the functional polyacrylate resin is a hydroxyl-containing acrylic resin with a glass transition temperature of 100°C and a molecular weight of 52,000 to 70,000; the hydroxyl value of the aldehyde and ketone resin is 250 mgKOH / g, and the glass transition temperature The temperature is 30°C, and the molecular weight is 1000-1600; the glass transition temperature of the low molecular weight cellulose acetate butyrate resin is 140°C, and the molecular weight is 19,000-23,000.

[0044] In Example 3, the functional coating contains more functional acrylic resins, combined ...

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Abstract

The invention provides a multifunctional paint used for outer package of wine box and a preparation method thereof. The multifunctional paint comprises the following components by weight: 10-30 parts of functional acrylic resin, 5-8 parts of keto-aldehyde resin, 2-10 parts of cellulose acetate butyrate resin with low molecular weight, 0.1-1 part of auxiliary agent and 60-80 parts of organic solvent. According to the invention, the acrylic resin containing a functional group is matched with keto-aldehyde resin, cellulose acetate butyrate resin with low molecular weight is combined, so that the paint has the advantages of good adhesion fastness, bright moulding rainbow effect and good printing adaptability.

Description

technical field [0001] The invention relates to a multifunctional coating for wine box outer packaging and a preparation method thereof. Background technique [0002] Vacuum aluminized laminated cardboard is an environmentally friendly and green packaging material. It is more and more popular because of its beautiful and elegant metal texture, stable and reliable printing performance, and super air barrier effect. And its price is about 10% cheaper than aluminum foil coated cardboard, so this product has strong market competitiveness. In the mid-1990s, vacuum aluminum-coated paperboard technology began to enter the wine box outer packaging market for medium and high-end wines in my country, gradually replacing traditional aluminum foil-coated paperboard and other outer packaging materials, and became the new darling of my country's packaging industry. The market prospect Very optimistic. [0003] The existing vacuum aluminized film-coated cardboard used in the field of wine...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/20D21H19/24D21H19/34D21H21/06
Inventor 虞明东韩莲蒋天龙周腾飞
Owner SHANGHAI WEIKAI CHEM
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