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Polyester resin for two-piece can printing ink, two-piece can printing ink and preparation method thereof

A technology of polyester resin and two-piece cans, applied in the field of polyester resin for two-piece can ink, two-piece can ink and its preparation, and ink field, which can solve poor transferability, poor scratch resistance, and two-piece can ink flying To solve the problem of serious ink and other problems, achieve the effect of obvious technical effect and good viscoelastic thixotropy

Inactive Publication Date: 2020-05-29
上海超彩油墨有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the present invention provides a polyester resin for two-piece can ink, two-piece can ink and a preparation method thereof, the polyester resin for two-piece can ink, two-piece can ink and its preparation method The preparation method should solve the technical problems of serious ink misting, poor transferability, poor viscoelastic thixotropy and poor scratch resistance in the prior art.

Method used

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  • Polyester resin for two-piece can printing ink, two-piece can printing ink and preparation method thereof
  • Polyester resin for two-piece can printing ink, two-piece can printing ink and preparation method thereof
  • Polyester resin for two-piece can printing ink, two-piece can printing ink and preparation method thereof

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preparation example Construction

[0050] An embodiment of the present invention provides a method for preparing a polyester resin for two-piece cans, the method comprising:

[0051] Nitrogen, 25-32 parts of dicarboxylic acid, 12-16 parts of saturated fatty acid, 6-12 parts of dihydric alcohol, 24-32 parts of polyol, 8-13 parts of acid anhydride, 1-3 parts of lactone, catalyst 0.02 -0.03 parts, 0.2-0.5 parts of antioxidant and other materials were put into the reaction kettle, and the temperature was slowly raised to 130°C, and kept for 1H;

[0052] Raise the temperature to 148-152°C and keep it warm for 1H;

[0053] Raise the temperature to 158-162°C, divide the water by the water separator and keep it warm for 2 hours;

[0054] Raise the temperature to 168-172°C and keep it warm for 0.5H;

[0055] Raise the temperature to 178~182℃, keep it warm for 2H;

[0056] Raise the temperature to 188-192°C and keep it warm for 0.5H;

[0057] Raise the temperature to 198-200°C and keep it warm for 1H;

[0058] Raise t...

Embodiment 1

[0065] A method for preparing a polyester resin for two-piece cans, the method comprising:

[0066] Prepare polyester resin, each component weight percent content is as follows:

[0067] Isophthalic acid 29.67％ Lauric acid 15.4％ 2-Ethyl-2-butyl-1,3-propanediol 8.2％ Trimethylolpropane 31.0％ Phthalic anhydride 12.2％ Caprolactone 3％ Dibutyltin oxide 0.03％ Butylated hydroxytoluene 0.5％

[0068] Nitrogen was passed, and all the materials in equal proportions were put into the reaction kettle, and the temperature was slowly raised to 130°C, and kept for 1H;

[0069] Raise the temperature to 148-152°C and keep it warm for 1H;

[0070] Raise the temperature to 158-162°C, divide the water by the water separator and keep it warm for 2 hours;

[0071] Raise the temperature to 168-172°C and keep it warm for 0.5H;

[0072] Raise the temperature to 178~182℃, keep it warm for 2H;

[0073] Raise the temperature to 188-192°C and keep ...

Embodiment 2

[0080] Prepare two cans of ink yellow primary color ink, and the weight percentage content of each component is as follows:

[0081] Polyester resin (made in embodiment 1) 45％ Diethylene glycol monobutyl ether 4％ Tripropylene glycol 8％ Dispersant: sodium methylene bis-tetrasulfonate 3％ fumed silica 2％ C.I. Pigment Yellow 83 25％ amino resin 12％ p-Toluenesulfonic acid 1％

[0082] The preparation method is as follows: mix polyester resin (prepared in Example 2), diethylene glycol monobutyl ether, tripropylene glycol, wetting and dispersing agent, and amino resin, stir at high speed with a stirrer until the temperature of the mixture reaches 60°C, and then Add C.I. Pigment Yellow 83 and fumed silica while stirring, and then stir at high speed for 30 minutes after adding. Then pass through a three-roll mill to grind fineness. When the fineness is less than 5 μm, add p-toluenesulfonic acid catalyst and stir evenly. Then test...

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Abstract

The invention provides polyester resin for two-piece can printing ink. The polyester resin is prepared from the following raw materials in parts by weight: 25-32 parts of dicarboxylic acid, 12-16 parts of saturated fatty acid, 6-12 parts of dihydric alcohol, 24-32 parts of polyhydric alcohol, 8-13 parts of anhydride, 1-3 parts of lactone, 0.02-0.03 parts of a catalyst and 0.2-0.5 parts of an antioxidant. The invention further provides a preparation method of the polyester resin for the two-piece can printing ink. The invention further provides the two-piece can printing ink. The two-piece canprinting ink is prepared from the polyester resin for the two-piece can printing ink, amino resin, an organic solvent, a catalyst, organic pigment powder, filler and auxiliaries. Meanwhile, the invention further discloses a method for preparing the two-piece can printing ink from the polyester resin. The two-piece can printing ink prepared by the invention has the advantages of better viscoelasticthixotropy, pigment wettability, scratch resistance, ink flying resistance and the like, particularly, the pencil hardness can reach 7H, and the ink flying test reaches level 5.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to an ink, specifically a polyester resin for two-piece can ink, two-piece can ink and a preparation method thereof. Background technique [0002] With the advancement of science and technology and the improvement of people's living standards, people's demand for canned food and beverages is increasing, and the requirements are getting higher and higher. In recent years, as glass bottled food and beverages have been gradually eliminated by the market due to safety factors, two-piece canned food and beverages based on aluminum have been favored by the market. Two-piece cans are made of stretched aluminum, which is formed at one time through uncoiling, die-cutting, initial stretching, re-stretching, cleaning, drying, printing and external coating, internal spraying, and drying. The process has high production efficiency, low energy consumption, small production loss, and VOC emissions a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/60C08G63/20C08G63/78C08G63/85C09D11/104C09D11/103C09D11/03C09D11/037
CPCC08G63/60C08G63/20C08G63/78C08G63/85C09D11/104C09D11/103C09D11/03C09D11/037
Inventor 杜坤扬张龙斌
Owner 上海超彩油墨有限公司
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