Preparation method of long-acting fresh-keeping corrugated case

A corrugated box, long-term technology, applied in the manufacture of rigid/semi-rigid containers, paper, paper, etc., can solve the problems of easy distribution of fresh-keeping ingredients and short-term fresh-keeping functions, and achieve improved drug efficacy, excellent antibacterial performance, and low cost cheap effect

Inactive Publication Date: 2019-01-11
HEFEI LONGFA PACKING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, although there are corrugated cartons with fresh-keeping function, the fresh-keeping components of this corrugated carton are easily distributed in a relatively high-temperature environment, and the fresh-keeping function does not last long even in a normal temperature environment. Therefore, there is an urgent need for a Corrugated boxes with more prominent fresh-keeping function

Method used

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  • Preparation method of long-acting fresh-keeping corrugated case

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for preparing a long-lasting fresh-keeping corrugated box, comprising the following steps:

[0017] (1) In parts by weight, add 18 parts of neodymium chloride and 11 parts of lanthanum chloride to 180 parts of water, mix and stir evenly, then continue to add 36 parts of sodium p-aminosalicylate to it, and heat the mixture to 88°C , after heat preservation treatment for 2 hours, the rare earth p-aminosalicylic acid was obtained;

[0018] (2) In parts by weight, after uniformly mixing 56 parts of pure acrylic emulsion, 11 parts of rare earth p-aminosalicylic acid, 2 parts of clove basil oil, 1 part of tricalcium phosphate, and 26 parts of water, a fresh-keeping coating was prepared;

[0019] (3) Then apply the fresh-keeping paint evenly on the inner surface of the corrugated box, put it in an oven, and dry it to obtain the finished product.

[0020] Specifically, in the above step (2), in the pure acrylic emulsion, the solid content is 45%, and the viscosity is ...

Embodiment 2

[0024] A method for preparing a long-lasting fresh-keeping corrugated box, comprising the following steps:

[0025] (1) In parts by weight, add 20 parts of neodymium chloride and 13 parts of lanthanum chloride to 200 parts of water, mix and stir evenly, then continue to add 38 parts of sodium p-aminosalicylate to it, and heat the mixture to 89°C , after heat preservation treatment for 2.5 hours, the p-aminosalicylic acid rare earth was obtained;

[0026] (2) In parts by weight, after uniformly mixing 58 parts of pure acrylic emulsion, 13 parts of rare earth p-aminosalicylic acid, 3 parts of clove basil oil, 3 parts of tricalcium phosphate, and 28 parts of water, a fresh-keeping coating was prepared;

[0027] (3) Then apply the fresh-keeping paint evenly on the inner surface of the corrugated box, put it in an oven, and dry it to obtain the finished product.

[0028] Specifically, in the above step (2), in the pure acrylic emulsion, the solid content is 48%, and the viscosity ...

Embodiment 3

[0032] A method for preparing a long-lasting fresh-keeping corrugated box, comprising the following steps:

[0033] (1) In parts by weight, add 22 parts of neodymium chloride and 15 parts of lanthanum chloride to 220 parts of water, mix and stir evenly, then continue to add 40 parts of sodium p-aminosalicylate to it, and heat the mixture to 90°C , after heat preservation treatment for 3 hours, the rare earth p-aminosalicylic acid was obtained;

[0034] (2) In parts by weight, after uniformly mixing 62 parts of pure acrylic emulsion, 16 parts of rare earth p-aminosalicylic acid, 5 parts of clove basil oil, 4 parts of tricalcium phosphate, and 32 parts of water, a fresh-keeping coating was prepared;

[0035] (3) Then apply the fresh-keeping paint evenly on the inner surface of the corrugated box, put it in an oven, and dry it to obtain the finished product.

[0036] Specifically, in the above step (2), in the pure acrylic emulsion, the solid content is 50%, and the viscosity is...

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Abstract

The invention discloses a preparation method of a long-acting fresh-keeping corrugated case. The preparation method comprises the following steps: (1) adding neodymium chloride and lanthanum chlorideinto water, uniformly mixing and stirring the mixture, continuously adding sodium aminosalicylate into the mixture, heating the mixture to 88-90 DEG C, and insulating the mixture for 2-3 hours to obtain rare earth aminosalicylate; (2) uniformly mixing a pure acrylic emulsion, the rare earth aminosalicylate, eugenol type basil oil, tricalcium phosphate and water to prepare a fresh-keeping coating;and (3) brushing the fresh-keeping coating to the inner surface of the corrugated case, putting the corrugated case in an oven, and drying the corrugated case to prepare a finished product. The preparation method of the long-acting fresh-keeping corrugated case provided by the invention is simple to operate and low in cost, and can reduce the rot rate of fruits and keep the sensory quality of thefruits.

Description

technical field [0001] The invention belongs to the technical field of corrugated carton preparation, and in particular relates to a method for preparing a long-term fresh-keeping corrugated carton. Background technique [0002] Corrugated cardboard is die-cut, creasing, nailed or glued to make corrugated boxes. Corrugated carton is the most widely used packaging product, and its consumption has always been the first among all kinds of packaging products. Including calcium plastic corrugated box. For more than half a century, corrugated boxes have gradually replaced wooden boxes and other transportation packaging containers due to their superior performance and good processing performance, and have become the main force of transportation packaging. In addition to protecting the goods and facilitating storage and transportation, it also plays the role of beautifying and promoting the goods. Corrugated boxes are green and environmentally friendly products, which are conduci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/38D21H21/36D21H19/14D21H19/24D21H27/10B31B50/74
CPCD21H21/38B31B50/742D21H19/14D21H19/24D21H21/36D21H27/10
Inventor 林悦敏
Owner HEFEI LONGFA PACKING CO LTD
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