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Fungus-resistant-treated coatings of printed wrapping paper and production method thereof

A technology of printing and packaging and anti-mildew treatment, which is applied in the direction of wrapping paper, wrapping paper, coating, etc., can solve the problems of persistent pollution of the ecological environment, inconsistent anti-mold and anti-bacterial effects of spraying, and difficult degradation, and achieve high safety and good Inhibition and killing of mold, strong anti-mold effect

Active Publication Date: 2019-06-07
SHANTOU KAIHONG PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional wrapping paper can only rely on its own physical properties to resist losses caused by various external factors, which will cause great limitations. When the external factors are harsh, it will not be able to cope well; although some wrapping paper By spraying anti-mildew and anti-bacterial agents on the outer surface, but due to uneven spraying, it is easy to cause inconsistent anti-mold and anti-bacterial effects on various parts of the wrapping paper; The antifungal agents used in medical treatment are often relatively single in composition, and most of them are chemical antifungal fungicides. Chemical antifungal agents generally have a one-time effect, which has the disadvantages of large consumption and not easy to degrade, which is likely to bring persistent pollution and damage to the ecological environment.

Method used

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  • Fungus-resistant-treated coatings of printed wrapping paper and production method thereof

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preparation example Construction

[0041] The preparation method of the anti-mildew treatment coating of the printed wrapping paper comprises the following steps:

[0042] The first step is to immerse the printed packaging paper in the treatment solution for 10-15 minutes;

[0043] The treatment liquid is prepared by the following method:

[0044] At room temperature, first measure 100mL deionized water into a three-necked round-bottomed flask, pass high-purity nitrogen gas to remove the air in the bottle, and maintain magnetic stirring at 120r / min, and add monomer N-methylol in sequence after 30min Acrylamide, acrylic acid, polyvinylpyrrolidone, cross-linking agent and activator, stir for 10 min after adding, slowly add 0.5 mL of 10% AgNO 3 solution, stirred for 60min, added 0.8mL initiator potassium persulfate, continued nitrogen reaction for 6h, then slowly added 1.2mL NaHSO reducing agent dropwise into the solution 3 solution, protected from light for 12 hours, to obtain a treatment solution, kept at room...

Embodiment 1

[0050] Preparation of treatment solution:

[0051] At room temperature, first measure 100mL deionized water into a three-necked round-bottomed flask, pass high-purity nitrogen gas to remove the air in the bottle, and maintain magnetic stirring at 120r / min, and add monomer N-methylol in sequence after 30min Acrylamide, acrylic acid, polyvinylpyrrolidone, cross-linking agent and activator, stir for 10 min after adding, slowly add 0.5 mL of 10% AgNO 3 solution, stirred for 60min, added 0.8mL initiator potassium persulfate, continued nitrogen reaction for 6h, then slowly added 1.2mL NaHSO reducing agent dropwise into the solution 3 solution, protected from light for 12 hours, to obtain a treatment solution, kept at room temperature and protected from light for subsequent use;

[0052] The amount of N-methylolacrylamide added is 0.75g, and the amounts of acrylic acid, polyvinylpyrrolidone, crosslinking agent and activator are respectively 30%, 6.5%, 3.4%, and 9.5% of the mass of N...

Embodiment 2

[0054] Preparation of antibacterial complex:

[0055] (1) Weigh 58.52mL of titanyl sulfate solution and 74.66mL of NaOH solution in a three-necked flask, raise the temperature in a water bath to 60°C, and keep the reaction for 110min under the stirring condition of 500r / min, then add 2.89mL of zirconium nitrate solution to it, Insulate and react for 2 hours, continue to react for 3 hours after heating up to 85 °C, cool naturally, wash with distilled water and absolute ethanol twice, and dry in an oven at 105 °C to obtain Zr-TiO 2 Powder;

[0056] (2) Weigh 8.1g of the above Zr-TiO 2 The powder and 1.2g of methacrylic acid were ultrasonically dispersed in 100mL of distilled water to obtain Zr-TiO 2 Dispersions;

[0057] (3) Under the conditions of water bath 72°C and stirring speed 300r / min, 80.8g of dimethyl diallyl ammonium chloride, Zr-TiO 2 Dispersion liquid, 0.52g methacrylic acid, 0.5g ammonium persulfate and 0.2g NaBH 4 Add it into a three-necked flask, react for 20...

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Abstract

The invention discloses fungus-resistant-treated coatings of printed wrapping paper. The fungus-resistant-treated coatings of the printed wrapping paper are produced from the following raw materials of, in parts by weight, 50-60 parts of waterborne polyurethane resin, 0.8-1 part of dispersion agent, 0.5-0.6 part of defoaming agent, 0.7-0.9 part of fungus-resistant agent, 6-8 parts of antibacterialcompound and 30-40 parts of deionized water. The invention furthermore discloses a production method of the fungus-resistant-treated coatings of the printed wrapping paper. According to the fungus-resistant-treated coatings of the printed wrapping paper and the production method of the fungus-resistant-treated coatings of printed wrapping paper, by conducting soaking treatment on the printed wrapping paper at first, the wrapping paper subjected to soaking treatment can slowly release silver ions, so that two surfaces of the printed wrapping paper have certain fungus-resistant performance respectively; and then each surface of the printed wrapping paper is covered with a layer of fungus-resistant paint, the compound fungus-resistant agent which is high in safety, environmentally friendly and high in fungus-resistant capability is added into the fungus-resistant paint, and meanwhile, the antibacterial compound is added, so that the coatings have high antibacterial capability, and the produced fungus-resistant-treated coatings have high fungus-resistant capability and antibacterial capability, and have a good protective effect on the printed wrapping paper.

Description

technical field [0001] The invention belongs to the technical field of packaging and printing, and in particular relates to an anti-mildew treatment coating for printing and packaging paper and a preparation method thereof. Background technique [0002] Wrapping paper is a general term for a type of paper used for packaging purposes. It usually has good strength, toughness, pressure resistance, and folding resistance. The quality requirements are slightly simpler than cultural printing paper. There are many subdivided paper types of wrapping paper, which can be roughly divided into: ordinary wrapping paper, special wrapping paper, trademark wrapping paper, oil-proof paper, moisture-proof paper, etc. Ordinary packaging paper is tough and used for general packaging; special packaging paper is named according to the purpose, and its properties are also different; trademark packaging paper is used for packaging after printing; oil-proof paper has the performance of preventing oi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/10D21H17/07D21H17/05D21H17/47D21H21/06D21H17/66D21H17/64D21H19/10
Inventor 刘慧梅田帅
Owner SHANTOU KAIHONG PRINTING
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