CN112375426A - Printing ink for high-temperature cooking bag and preparation method thereof - Google Patents

Abstract

The invention provides ink for a high-temperature cooking bag, and belongs to the technical field of packaging. The raw material components comprise the following components in parts by weight: 34-40 parts of water-based inorganic nano silicate resin, 30-45 parts of water-based amino resin, 10-20 parts of maltodextrin, 40-50 parts of water-based acrylic resin emulsion, 1-2 parts of flatting agent, 1-10 parts of dispersing agent, 1-5 parts of auxiliary agent and 10-30 parts of water-based pigment. The invention also provides a preparation method of the ink for the high-temperature cooking bag. The preparation method provided by the invention is simple, and the prepared ink has good high temperature resistance and boiling resistance.

Description

Printing ink for high-temperature cooking bag and preparation method thereof

Technical Field

The invention relates to the technical field of packaging, in particular to ink for a high-temperature cooking bag and a preparation method thereof.

Background

At present, no special high-temperature cooking and disinfection resistant surface printing product exists in the market, an old product system is eliminated, and a large amount of free radicals generated in the later processing process due to the addition of a large amount of curing agents (TDI and HDI) in the original product are prevented from generating carcinogenic substances and damaging the health of a human body. Further enhancing the environmental protection safety of food and medicine packaging.

At present, two-component system ink, namely main resin (main agent) reinforcing agents (HDI and TDI), is used domestically and mixed according to a certain proportion. However, in the using process, a large amount of waste tailings are easily generated and cannot be used, so that great economic waste and environmental pollution are caused. More importantly, the cooking and plain-eliminating ring joint in the later period is easy to generate free radical substances and cause cancers. Is harmful to human health.

Disclosure of Invention

In view of the above technical problems, an object of the present invention is to provide an ink for retort pouch.

In order to achieve the purpose, the invention provides ink for a high-temperature cooking bag, which comprises the following raw material components in parts by weight:

34-40 parts of water-based inorganic nano silicate resin, 30-45 parts of water-based amino resin, 10-20 parts of maltodextrin, 40-50 parts of water-based acrylic resin emulsion, 1-2 parts of flatting agent, 1-10 parts of dispersing agent, 1-5 parts of auxiliary agent and 10-30 parts of water-based pigment.

The solid content of the water-based acrylic resin emulsion is 15-20%.

The flatting agent is at least one of polyacrylate, polymethylsiloxane and cellulose acetate butyrate;

the dispersing agent is at least one of polyalkylammonium salt copolymer, long-chain fatty acid type dispersing agent and acrylic copolymer dispersing agent;

the auxiliary agent is at least one of gamma-glycidoxypropyltrimethoxysilane, gamma-methacryloxypropyltrimethoxysilane, gamma-methacryloxypropyltriethoxysilane, acryloxysilane oligomer, epoxy silane oligomer and acrylic phosphate monomer.

The water-based pigment is one or more of permanent yellow, carbon black pigment and water-soluble titanium dioxide.

The invention also provides a preparation method of the ink for the high-temperature cooking bag, which comprises the following steps:

(1) adding the water-based pigment and maltodextrin into the water-based acrylic resin emulsion according to the parts by weight, heating at 90 ℃, and stirring at the rotating speed of 150-;

(2) adding the water-based inorganic nano silicate resin, the water-based amino resin, the flatting agent, the dispersing agent and the auxiliary agent into the mixed solution according to the parts by weight, heating to 160 ℃ at 150-;

(3) and (3) adding the mixture obtained in the step (2) into a ball mill for multiple times of grinding, filtering and packaging to obtain the product.

The invention has the beneficial effects that:

the ink provided by the invention takes the water-based resin and the water-based resin emulsion as main materials, and has better high-temperature resistance and boiling resistance on the basis of the whole formula by adding the maltodextrin.

Detailed Description

In order to more clearly and completely describe the technical scheme of the invention, the invention is further described in detail by the specific embodiments, and it should be understood that the specific embodiments described herein are only used for explaining the invention, and are not used for limiting the invention, and various changes can be made within the scope defined by the claims of the invention.

Example 1

The printing ink for the high-temperature cooking bag comprises the following raw material components in parts by weight:

37 parts of water-based inorganic nano silicate resin, 40 parts of water-based amino resin, 15 parts of maltodextrin, 45 parts of water-based acrylic resin emulsion, 1.5 parts of flatting agent, 5 parts of dispersing agent, 3 parts of auxiliary agent and 20 parts of water-based pigment.

The solid content of the water-based acrylic resin emulsion is 15-20%.

The flatting agent is at least one of polyacrylate, polymethylsiloxane and cellulose acetate butyrate;

the dispersing agent is at least one of polyalkylammonium salt copolymer, long-chain fatty acid type dispersing agent and acrylic copolymer dispersing agent;

the auxiliary agent is at least one of gamma-glycidoxypropyltrimethoxysilane, gamma-methacryloxypropyltrimethoxysilane, gamma-methacryloxypropyltriethoxysilane, acryloxysilane oligomer, epoxy silane oligomer and acrylic phosphate monomer.

The water-based pigment is one or more of permanent yellow, carbon black pigment and water-soluble titanium dioxide.

A preparation method of ink for a high-temperature cooking bag comprises the following steps:

(1) adding the water-based pigment and maltodextrin into the water-based acrylic resin emulsion according to the parts by weight, heating at 90 ℃, and stirring at the rotating speed of 155r/min for 35min to obtain a mixed solution;

(2) adding the water-based inorganic nano silicate resin, the water-based amino resin, the flatting agent, the dispersing agent and the auxiliary agent into the mixed solution according to the weight parts, heating to 155 ℃, and stirring at the rotating speed of 205r/min for 35 min;

(3) and (3) adding the mixture obtained in the step (2) into a ball mill for multiple times of grinding, filtering and packaging to obtain the product.

Example 2

The printing ink for the high-temperature cooking bag comprises the following raw material components in parts by weight:

34 parts of water-based inorganic nano silicate resin, 30 parts of water-based amino resin, 10 parts of maltodextrin, 40 parts of water-based acrylic resin emulsion, 1 part of flatting agent, 1 part of dispersing agent, 1 part of auxiliary agent and 10 parts of water-based pigment.

The solid content of the water-based acrylic resin emulsion is 15-20%.

The flatting agent is at least one of polyacrylate, polymethylsiloxane and cellulose acetate butyrate;

the dispersing agent is at least one of polyalkylammonium salt copolymer, long-chain fatty acid type dispersing agent and acrylic copolymer dispersing agent;

the auxiliary agent is at least one of gamma-glycidoxypropyltrimethoxysilane, gamma-methacryloxypropyltrimethoxysilane, gamma-methacryloxypropyltriethoxysilane, acryloxysilane oligomer, epoxy silane oligomer and acrylic phosphate monomer.

The water-based pigment is one or more of permanent yellow, carbon black pigment and water-soluble titanium dioxide.

The invention also provides a preparation method of the ink for the high-temperature cooking bag, which comprises the following steps:

(1) adding the water-based pigment and maltodextrin into the water-based acrylic resin emulsion according to the parts by weight, heating at 90 ℃, and stirring at the rotating speed of 150r/min for 30min to obtain a mixed solution;

(2) adding the water-based inorganic nano silicate resin, the water-based amino resin, the flatting agent, the dispersing agent and the auxiliary agent into the mixed solution according to the weight parts, heating to 150 ℃, and stirring for 30min at the rotating speed of 200 r/min;

(3) and (3) adding the mixture obtained in the step (2) into a ball mill for multiple times of grinding, filtering and packaging to obtain the product.

Example 3

The printing ink for the high-temperature cooking bag comprises the following raw material components in parts by weight:

40 parts of water-based inorganic nano silicate resin, 45 parts of water-based amino resin, 20 parts of maltodextrin, 50 parts of water-based acrylic resin emulsion, 2 parts of flatting agent, 10 parts of dispersing agent, 5 parts of auxiliary agent and 30 parts of water-based pigment.

The solid content of the water-based acrylic resin emulsion is 15-20%.

The flatting agent is at least one of polyacrylate, polymethylsiloxane and cellulose acetate butyrate;

the dispersing agent is at least one of polyalkylammonium salt copolymer, long-chain fatty acid type dispersing agent and acrylic copolymer dispersing agent;

the auxiliary agent is at least one of gamma-glycidoxypropyltrimethoxysilane, gamma-methacryloxypropyltrimethoxysilane, gamma-methacryloxypropyltriethoxysilane, acryloxysilane oligomer, epoxy silane oligomer and acrylic phosphate monomer.

The water-based pigment is one or more of permanent yellow, carbon black pigment and water-soluble titanium dioxide.

The invention also provides a preparation method of the ink for the high-temperature cooking bag, which comprises the following steps:

(1) adding the water-based pigment and maltodextrin into the water-based acrylic resin emulsion according to the parts by weight, heating at 90 ℃, and stirring at the rotating speed of 160r/min for 40min to obtain a mixed solution;

(2) adding the water-based inorganic nano silicate resin, the water-based amino resin, the flatting agent, the dispersing agent and the auxiliary agent into the mixed solution according to the weight parts, heating to 160 ℃, and stirring for 40min at the rotating speed of 210 r/min;

(3) and (3) adding the mixture obtained in the step (2) into a ball mill for multiple times of grinding, filtering and packaging to obtain the product.

Comparative example 1

The printing ink for the high-temperature cooking bag comprises the following raw material components in parts by weight:

45 parts of water-based inorganic nano silicate resin, 20 parts of water-based amino resin, 15 parts of maltodextrin, 45 parts of water-based acrylic resin emulsion, 1.5 parts of flatting agent, 5 parts of dispersing agent, 3 parts of auxiliary agent and 20 parts of water-based pigment.

The rest is the same as example 1.

Comparative example 2

The printing ink for the high-temperature cooking bag comprises the following raw material components in parts by weight:

37 parts of water-based inorganic nano silicate resin, 40 parts of water-based amino resin, 30 parts of maltodextrin, 45 parts of water-based acrylic resin emulsion, 1.5 parts of flatting agent, 5 parts of dispersing agent, 3 parts of auxiliary agent and 20 parts of water-based pigment.

The rest is the same as example 1.

Comparative example 3

The printing ink for the high-temperature cooking bag comprises the following raw material components in parts by weight:

37 parts of water-based inorganic nano silicate resin, 40 parts of water-based amino resin, 45 parts of water-based acrylic resin emulsion, 1.5 parts of flatting agent, 5 parts of dispersing agent, 3 parts of auxiliary agent and 20 parts of water-based pigment.

The rest is the same as example 1.

The inks prepared in the examples and comparative examples were printed on a retort pouch for testing, and the results were as follows:

TABLE 1

As is clear from Table 1, the ink obtained in comparative example 3, in which maltodextrin was not added, had poor boiling resistance.

Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, rather than limitations, and that many variations and modifications of the invention are possible to those skilled in the art, without departing from the spirit and scope of the invention.

Claims (7)

1. The printing ink for the high-temperature cooking bag is characterized by comprising the following raw material components in parts by weight:

34-40 parts of water-based inorganic nano silicate resin, 30-45 parts of water-based amino resin, 10-20 parts of maltodextrin, 40-50 parts of water-based acrylic resin emulsion, 1-2 parts of flatting agent, 1-10 parts of dispersing agent, 1-5 parts of auxiliary agent and 10-30 parts of water-based pigment.

2. An ink for retort pouch according to claim 1, characterized in that: the solid content of the water-based acrylic resin emulsion is 15-20%.

3. An ink for retort pouch according to claim 1, characterized in that: the leveling agent is at least one of polyacrylate, polymethylsiloxane and cellulose acetate butyrate.

4. An ink for retort pouch according to claim 1, characterized in that: the dispersing agent is at least one of polyalkylammonium salt copolymer, long-chain fatty acid type dispersing agent and acrylic copolymer dispersing agent.

5. An ink for retort pouch according to claim 1, characterized in that: the auxiliary agent is at least one of gamma-glycidoxypropyltrimethoxysilane, gamma-methacryloxypropyltrimethoxysilane, gamma-methacryloxypropyltriethoxysilane, acryloxysilane oligomer, epoxy silane oligomer and acrylic phosphate monomer.

6. An ink for retort pouch according to claim 1, characterized in that: the water-based pigment is one or more of permanent yellow, carbon black pigment and water-soluble titanium dioxide.

7. A method of preparing an ink for retorting pouches according to any one of claims 1 to 6, comprising the steps of:

(1) adding the water-based pigment and maltodextrin into the water-based acrylic resin emulsion according to the parts by weight, heating at 90 ℃, and stirring at the rotating speed of 150-;

(2) adding the water-based inorganic nano silicate resin, the water-based amino resin, the flatting agent, the dispersing agent and the auxiliary agent into the mixed solution according to the parts by weight, heating to 160 ℃ at 150-;

(3) and (3) adding the mixture obtained in the step (2) into a ball mill for multiple times of grinding, filtering and packaging to obtain the product.