Method for improving adhesive power of ink in plastic prints

A technology of printed matter and adhesion, applied in inks, household appliances, applications, etc., can solve the problems of high requirements for operators and machinery and equipment, poor printing results, and difficulty in controlling the degree of reaction. The effect of increased focus and improved friction resistance

Inactive Publication Date: 2017-02-15
NANNING RIJIAN PLASTIC PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, these processing methods are relatively complicated in technology, and it is not easy to control the degree of reaction, and the requirements for operators and machinery and equipment are relatively high.
In addition, the plastic surface treated by the conventional electric spark method and flame method is prone to deactivation, and the treated plastic products must be printed immediately, otherwise they may still fail, and the printing effect will not be good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 1. Preparation of microwave absorber:

[0051] Put 5g of nano-silicon carbide into 100g of chemically pure 1,3-dimethyl-2-imidazolinone solution, and then sonicate at 25°C for 30min to obtain nanoparticle-1,3-dimethyl-2-imidazoline Ketone dispersion.

[0052] 2. A method for improving ink adhesion in plastic printed matter, comprising the following steps:

[0053] (1) Pretreatment of plastic products: Spray 1 g of microwave absorber on the surface of 100 g of plastic products polyethylene products, and in an oxygen environment, microwave radiation for 2 minutes to obtain rough plastic products;

[0054] (2) Printing: Install the plastic rough product on the printing equipment, then spray ink on the printing plate, and then move the pad printing head through the mechanical arm to shift the predetermined position of the printing plate on the plastic rough product, in the infrared drying box Dry at 50°C for 1 hour to obtain the finished product;

[0055] The ink is made...

Embodiment 2

[0057] 1. Preparation of microwave absorber:

[0058] Put 3g of nano-tin dioxide and 4g of nano-ferrous titanate into 100g of chemically pure 1,3-dimethyl-2-imidazolidinone solution, and then sonicate at 30°C for 45min to obtain nanoparticles-1,3- Dimethyl-2-imidazolinone dispersion.

[0059] 2. A method for improving ink adhesion in plastic printed matter, comprising the following steps:

[0060] (1) Pre-treatment of plastic products: spray microwave absorber on the surface of 100g polyvinyl chloride product with 2g, under chlorine gas environment, microwave radiation for 5min, obtain plastic product crude product;

[0061] (2) Printing: Install the plastic rough product on the printing equipment, then spray ink on the printing plate, and then move the pad printing head through the mechanical arm to shift the predetermined position of the printing plate on the plastic rough product, in the infrared drying box Dry at 64°C for 1.5h to obtain the finished product;

[0062] Th...

Embodiment 3

[0064] 1. Preparation of microwave absorber:

[0065] Put 5g of nano-ferrous titanate and 3g of nano-titanium dioxide into 100g of chemically pure 1,3-dimethyl-2-imidazolidinone solution, and then sonicate at 28°C for 50min to obtain nanoparticle-1,3-dimethyl Base-2-imidazolidinone dispersion.

[0066] 2. A method for improving ink adhesion in plastic printed matter, comprising the following steps:

[0067] (1) Pretreatment of plastic products: 1.8 g of microwave absorber is sprayed on the surface of 100 g of polypropylene products, and microwave radiation is applied for 20 minutes in an ozone environment to obtain crude plastic products;

[0068] (2) Printing: Install the plastic rough product on the printing equipment, then spray ink on the printing plate, and then move the pad printing head through the mechanical arm to shift the predetermined position of the printing plate on the plastic rough product, in the infrared drying box Dry at 62°C for 2.5 hours to obtain the fi...

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Abstract

The invention belongs to the field of printing processing and particularly relates to a method for improving adhesive power of ink in plastic prints, comprising the steps of (1) pretreating a plastic article; (2) printing. The surface of the plastic article is oxidized by means of microwave radiation, energy can be transmitted quickly to specific functional groups on the surface of plastic by microwave, and uniform heating and uniform oxidation are achieved; preparation of printing ink is based on common ink, and the compatibility and permeability of ink with the plastic article are improved by adding a coupling agent and low-molecular-weight wax. The plastic prints prepared herein have the advantages of high adhesion between plastic articles with ink is high, and good friction resistance.

Description

[0001] 【Technical field】 [0002] The invention belongs to the field of printing processing, in particular to a method for improving ink adhesion in plastic printed matter. [0003] 【Background technique】 [0004] Plastic is a high molecular compound polymerized by addition polymerization or polycondensation reaction with monomer as raw material. It is commonly known as plastic or resin. It can freely change its composition and shape. , Colorants and other additives. Most plastics are light in weight, chemically stable, will not rust, have good impact resistance, have good transparency and wear resistance, good insulation, low thermal conductivity, and have a wide range of applications. [0005] In order to further expand the application of plastics in various industries in life, it is necessary to print plastic products. The printing substrate has different surfaces, and the paper material has a structure of numerous fibrous capillary pores. These non-specially treated paper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08J7/06C08J7/12C09D11/102C09D11/03C09D11/033
CPCC08J7/0427C08J7/065C08J7/123C08J2300/00C08J2475/04C09D11/03C09D11/033C09D11/102
Inventor 刘天佑秦日珍
Owner NANNING RIJIAN PLASTIC PACKAGING
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