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Laser electrolytic aluminum coating composition and preparation method thereof

A technology of anodized aluminum and composition, applied in the field of anodized aluminum coatings and their preparation, can solve the problems of high price, large profit margin, increased application amount, etc., and achieve the effects of high bronzing fineness, wide application range, and wide adaptability to temperature.

Inactive Publication Date: 2012-08-22
SHANGHAI WEIKAI CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because of its beautiful holographic rainbow luster on the surface and anti-counterfeiting function, laser anodized aluminum can be used in various aspects such as high-end cigarette labels, wine labels, tipping paper, ordinary transfer paper, etc. The application volume is increasing year by year, the price is expensive, and the profit margin Big
However, the current products in this field are mainly solvent-based coatings. Although the production process is mature and the performance is stable, benzene-based solvents are mostly used as solvents, causing environmental pollution and causing great harm to the health of workers.

Method used

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  • Laser electrolytic aluminum coating composition and preparation method thereof

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Embodiment 1

[0030] This embodiment provides a kind of anodized aluminum coating composition for bronzing, its composition and weight are as shown in Table 1, and its preparation method comprises the following steps:

[0031] (1) Put the solvent into the reaction kettle first, that is, 40 kilograms of butanone and 25 kilograms of ethyl acetate are put into the reaction kettle together, and heated to 70 ° C while stirring;

[0032] (2) 2 kilograms of nitrocellulose resin (viscosity is 1 / 16s) are dropped in the reactor, stirred for 0.5 hour;

[0033] (3) Add 28 kilograms of acrylic resin (weight-average molecular weight of 3 to 40,000) and 5 kilograms of styrene maleic anhydride resin into the above solution, and stir at high speed for 4 hours;

[0034] (4) After all the resin is completely dissolved, add 0.1 kg of additives and disperse at high speed for 1 hour;

[0035] (5) Stir slowly until the solution is cooled, then put it into the packaging barrel.

[0036] The paint obtained above ...

Embodiment 2

[0038] This embodiment provides a kind of anodized aluminum coating composition for bronzing, its composition and weight are as shown in Table 1, and its preparation method comprises the following steps:

[0039] (1) First put the solvent into the reactor, namely 35 kg of methyl ethyl ketone, 27 kg of ethyl acetate, and 15 kg of isopropanol, put them into the reactor together, and heat to 55 ° C while stirring;

[0040] (2) 4 kilograms of nitrocellulose resin (viscosity is 1 / 8s) are dropped in the reactor, stirred for 0.7 hours;

[0041] (3) Add 15 kg of acrylic resin (1.5-30,000 weight average molecular weight) and 4 kg of aldehyde and ketone resin into the above solution, and stir at high speed for 2 hours;

[0042] (4) After all the resin is completely dissolved, add 0.2 kg of additives and disperse at high speed for 1 hour;

[0043] (5) Stir slowly until the solution is cooled, then put it into the packaging barrel.

[0044] After the paint obtained above is coated, it i...

Embodiment 3

[0046] This embodiment provides a kind of anodized aluminum coating composition for bronzing, its composition and weight are as shown in Table 1, and its preparation method comprises the following steps:

[0047] (1) First put the solvent into the reactor, namely 40 kg of methyl ethyl ketone, 30 kg of n-propyl acetate, and 10 kg of isopropanol, put them into the reactor together, and heat to 40°C while stirring;

[0048] (2) 7 kilograms of nitrocellulose resin (viscosity is 5s) are dropped in the reactor, stirred for 1.0 hour;

[0049] (3) Add 13 kg of acrylic resin (weight average molecular weight: 0.5 to 15,000) into the above solution, and stir at high speed for 3 hours;

[0050] (4) Stir slowly until the solution is cooled, then put it into the packaging barrel.

[0051] The paint obtained above is low in cost and simple in operation process. After coating, it is tested by molding and hot stamping, and the molding temperature is low, and the fineness of hot stamping is hi...

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Abstract

The invention discloses a laser electrolytic aluminum coating composition and a preparation method thereof. The laser electrolytic aluminum coating comprises the following components by weight percent: 13-28% of acrylic resin, 2-7% of nitrocellulose resin, 0-5% of styrene maleic anhydride resin, 0-4% of aldehyde ketone resin, 0-1% of auxiliary agent and 65-80% of solvent. The preparation method comprises the steps of: putting the solvent into a reaction kettle, and heating to 40-70 DEG C when stirring; putting the nitrocellulose resin into the reaction kettle, and stirring; sequentially putting the rest resins into the reaction kettle, and further stirring; after all the resins which are put into the reaction kettle are completely dissolved, putting the auxiliary agent into the reaction kettle, and cooling after dispersing to obtain the laser electrolytic aluminum coating. Compared with the prior art, the laser electrolytic aluminum coating disclosed by the invention is environment-friendly, low in cost, good in application adaptability and excellent in performance.

Description

technical field [0001] The invention relates to an anodized aluminum coating and a preparation method thereof, in particular to a laser anodized aluminum coating composition and a preparation method thereof. Background technique [0002] Anodized aluminum hot stamping is a special printing process without ink. It uses the principle of hot press transfer, with the help of certain pressure and temperature, and uses the template installed on the hot stamping machine to make the printed matter and hot stamping foil interact with each other in a short time. Under pressure, the metal foil or pigment is transferred to the surface of the hot-printed product according to the pattern of the hot-stamping template to form a special metal effect, because the main material used is anodized aluminum foil (also called hot-stamping aluminum, which is made of polyester film base sheet and transfer layer), so anodized aluminum hot stamping is also called hot stamping. [0003] Because of its ...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D101/18C09D135/06
Inventor 虞明东吴小娟
Owner SHANGHAI WEIKAI CHEM
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