3D printed food package ink and preparation method thereof

A food packaging and 3D printing technology, applied in the field of 3D printing materials, can solve the problems of poor food packaging barrier effect and environmental pollution, and achieve the effect of small porosity, small printing error and high resolution

Inactive Publication Date: 2016-11-16
QINGHAI MINGYANG ENVIRONMENTAL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this invention is to provide a gypsum material for 3D printing food packaging, which solves the problem that the barrier effect of food packaging is not good and it is easy to cause environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The gypsum raw material is crushed and homogenized in three stages to obtain gypsum blocks with a particle size of 10 cm, heated to 55°C in the reactor, drained of condensed water, and then injected with 1.5 MPa saturated steam, dried for 6 hours, and then drained of excess steam; Dry for 3 hours, pressure 0.5MPa, temperature 150°C, dry for 8 hours, and grind the dried material to get gypsum powder;

[0021] Add 10.0g of DETA and 155.0g of nano-silicon carbide into the grinder, and grind for 12 hours at a speed of 500r / min;

[0022] Add 50.0g of absolute ethanol to the mixer, the mixture of ground nano-silicon carbide and DETA, 180.0g of epoxy resin, mix well, keep warm at 50°C for 6h, add 600.0g of gypsum powder and 5.0g of ultramarine blue pigment according to the formula , and mix evenly to obtain 1000g of base ink.

[0023] Add 25g of citric acid and 100g of epoxy resin to 875g of base ink, and mix evenly to prepare 1000g of 3D printing food packaging ink.

[0024...

Embodiment 2

[0026] The gypsum raw material is crushed in three stages and homogenized to obtain gypsum blocks with a particle size of 20cm, which are heated to 60°C in the reactor, and the condensed water generated is removed, then 3.5MPa saturated steam is introduced, dried for 5 hours, and then the excess steam is drained; Dry for 2 hours, pressure 0.3MPa, temperature 160°C, dry for 7 hours, and grind the dried material to get gypsum powder;

[0027] Add 200.0g of DETA and 20.0g of nano-silicon carbide into the grinder, and grind for 4 hours at a speed of 2000r / min;

[0028] Add 5.0g of absolute ethanol to the mixer, the mixture of ground nano-silicon carbide and DETA, 40.0g of epoxy resin, mix evenly, keep warm at 55°C for 4.5h, add 732.0g of gypsum powder according to the formula, and 3.0 of peacock blue pigment g, mix evenly to obtain 1000g of base ink.

[0029] Add 5g of citric acid and 100g of epoxy resin to 895g of base ink, and mix evenly to prepare 1000g of 3D printing food pac...

Embodiment 3

[0032] The gypsum raw material is crushed in three stages and homogenized to obtain gypsum blocks with a particle size of 15cm, heated to 57°C in the reactor, draining the condensed water, and then injecting 2.5MPa saturated steam, drying for 5.5h, and then draining the excess steam ;Dry for 2.5 hours, pressure 0.4MPa, temperature 155°C, dry for 7.5 hours, and grind the dried material to get gypsum powder;

[0033] Add 5.0g of DETA and 20.0g of nano-silicon carbide into the grinder, and grind for 8 hours at a speed of 1000r / min;

[0034] Add 5.0g of absolute ethanol to the mixer, the mixture of ground nano-silicon carbide and DETA, 40.0g of epoxy resin, and mix evenly. After 5 hours at 56°C, add 927.5g of gypsum powder and 2.5g of azo red pigment according to the formula. g, mix evenly to obtain 1000g of base ink.

[0035] Add 25g of sodium citrate to 975g of base ink and mix evenly to obtain 1000g of 3D printing food packaging ink.

[0036] Add 520g of 3D printing food pack...

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Abstract

The invention discloses 3D printed food package ink and a preparation method thereof, belongs to the technical field of 3D printing materials, relates to a gypsum material for 3D printed food packages, and further relates to a preparation method and a use method of the gypsum material. The ink consists of the following components in percentage by weight: 87-98% of basic ink, 0.5-2.5% of a retarder and 0-10% of epoxy resin. The preparation method of the ink comprises the following steps: pre-treating packing; adding the retarder, pre-treating packing and a modifier, adding gypsum powder and a pigment, and performing uniform mixing so as to obtain the basic ink; adding the retarder and the epoxy resin into the basic ink, and uniformly mixing, thereby obtaining the 3D printed food package ink. The 3D printed food package ink has the beneficial effects that firstly, a finished product of the food package is high in strength, high in resolution rate, small in printing error, small in porosity and good in surface appearance quality; secondly, the 3D printed food package ink is molded at one time, and is simple in process and low in cost; thirdly, the 3D printed food package ink is free of pollution, and is relatively environment-friendly as the material can be recycled and reused after being retreated.

Description

technical field [0001] The invention belongs to the technical field of 3D printing materials, and relates to a gypsum material for 3D printing food packaging, and also relates to a preparation method and a use method of the gypsum material. Background technique [0002] With the rapid development of my country's packaging industry, the role of packaging production in promoting the construction of the national economy and improving the material and cultural life of the people has become increasingly apparent. As an independent industry system, the development of the packaging industry has been included in the national economic and social development plan. People depend on food, and the food packaging market has great potential. [0003] The current food packaging is generally made of paper-based, aluminum-based or PE materials. On the one hand, this type of packaging has poor barrier effect, which makes food easy to spoil. On the other hand, most of the materials are difficu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03B33Y70/00
CPCC09D11/03B33Y70/00
Inventor 张炜赵富玉马刚
Owner QINGHAI MINGYANG ENVIRONMENTAL TECH GRP CO LTD
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