A kind of photocatalytic fresh-keeping paint and super fresh paper coated with the fresh-keeping paint

A photocatalytic and coating technology, which is applied in paper coatings, polyether coatings, antifouling/underwater coatings, etc., can solve the problems of not having fresh-keeping functions, and achieve the reduction of catalytic effects, inhibition of growth and reproduction, and high activity. Effect

Active Publication Date: 2022-07-01
鲸果科技(杭州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing fruit and vegetable packaging paper is usually simple wax paper, which does not have the function of freshness preservation, and needs to be solved urgently

Method used

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  • A kind of photocatalytic fresh-keeping paint and super fresh paper coated with the fresh-keeping paint
  • A kind of photocatalytic fresh-keeping paint and super fresh paper coated with the fresh-keeping paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 0.02 parts by weight of photocatalytic nano titanium dioxide particles with a coating layer on the surface, 0.002 parts of slow-release ethylene inhibitor, 0.002 parts of binder and 0.02 parts of soluble polymer, stir and mix, and mix Prepared into photocatalytic fresh-keeping paint. Then, the photocatalytic fresh-keeping paint is sprayed on at least one surface of the paper body layer.

[0028] Wherein, the coating layer is silicon dioxide. Preparation method: first, mix 100 parts of nano titanium dioxide and 300 parts of water in a weight ratio, and then fully stir for 10 minutes, then add 1 part of long-chain alkyl surfactant to mix, emulsify for 30 minutes under stirring, and then add ethyl silicate, fully After stirring for 2 h, the mixed solution was finally calcined at 500° C. for 2 h to obtain nano-titania particles coated with silica.

[0029] The sustained-release ethylene inhibitor is a microcapsule ethylene inhibitor. The preparation method of the m...

Embodiment 2

[0036] Weigh out 5 parts by weight of photocatalytic nano titanium dioxide particles with a coating layer on the surface, 0.1 part of slow-release ethylene inhibitor, 5 parts of binder and 0.05 part of soluble polymer.

[0037] The coating layer is montmorillonite. Preparation method: first add 0.8ml of titanium tetrachloride to 40ml of hydrochloric acid solution with a concentration of 1mol / L and stir for 40min to obtain a light yellow and transparent titanium dioxide acidic sol, then add 1% sodium base to 25ml of titanium dioxide acidic sol Montmorillonite solution (1g of montmorillonite was added to a mixture of 50mL deionized water and 50mL absolute ethanol and stirred for 10min) and stirred at 60°C for 4h, followed by centrifugal filtration, washed with deionized water for 3 times, and washed until no more Cl - (detected with 1% AgNO, solution), and then calcined at 500° C. for 2 h to obtain nano-TiO2 particles coated with montmorillonite.

[0038] Others are the same a...

Embodiment 3

[0040] Weigh out 9.5 parts by weight of photocatalytic nano titanium dioxide particles with a coating layer on the surface, 0.18 parts of slow-release ethylene inhibitor, 9.5 parts of binder and 0.09 parts of soluble polymer.

[0041] Others are the same as in Embodiment 1.

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PUM

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Abstract

The invention discloses a photocatalytic fresh-keeping paint and a super fresh paper coated with the fresh-keeping paint, including a photocatalytic fresh-keeping paint, comprising 0.01-10 parts by weight of photocatalytic nano-titanium dioxide with a coating layer on the surface. Granules, 0.001-0.2 parts of slow-release ethylene inhibitor and 0.001-10 parts of binder, the coating layer is hydroxyapatite, montmorillonite or silicon dioxide, the slow-release ethylene inhibitor It is a microcapsule ethylene inhibitor, the adhesive is one or a combination of acrylic resin, polyurethane resin and silicone resin, a kind of ultra-fresh paper, including a paper body layer, at least one of the paper body layer. One side surface is provided with a photocatalytic functional layer loaded with photocatalytic particles and ethylene inhibitors, which can provide a good fresh-keeping effect on the packaged fruits and vegetables during transportation.

Description

【Technical field】 [0001] The invention relates to the technical field of preservation, in particular to the technical field of photocatalytic ultra-fresh paper. 【Background technique】 [0002] With the improvement of people's living standards, people's requirements for the shape of fruits also increase. Fruits, such as apples, pears and oranges, often need to be wrapped with wrapping paper, then covered with foam nets and packed in boxes during transportation. The existing fruit and vegetable wrapping paper is usually a simple wax paper, which does not have the function of keeping fresh, and needs to be solved urgently. [Content of the invention] [0003] The purpose of the present invention is to solve the problems in the prior art, and to propose a photocatalytic fresh-keeping paint and a super fresh paper coated with the fresh-keeping paint, which can have a good fresh-keeping effect on the packaged fruits and vegetables during transportation. [0004] In order to ach...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D175/04C09D183/04C09D171/02C09D129/04C09D7/62C09D7/40C09D5/14D21H19/40D21H19/38D21H19/58D21H19/60D21H19/62B65D65/42
CPCC09D133/04C09D175/04C09D183/04C09D171/02C09D129/04C09D7/62C09D7/40C09D5/14D21H19/40D21H19/58D21H19/62D21H19/60D21H19/385B65D65/42C08K2201/011C08K2003/2241C08L75/04C08L83/04C08L71/02C08L29/04C08K9/10C08K3/22C08L33/04
Inventor 王晟丁文鹏甘振顺
Owner 鲸果科技(杭州)有限公司
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