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A kind of mold release agent for plastic products for food packaging and production method thereof

A technology for plastic products and food packaging, which is applied in the field of plastic product release agents for food packaging and food-grade polydimethylsiloxane emulsions. It can solve the problems of unsatisfactory legality and functionality, and achieve good mold release effects. , Ensure food safety and reduce costs

Active Publication Date: 2018-07-24
上海荣信塑料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It can be seen that the existing polydimethylsiloxane emulsion release agents cannot meet the requirements of plastic product release agents for food packaging in terms of legality and functionality. For plastic products used in food packaging, a release agent with low price and good release effect is an urgent need to be solved in the production line of this field

Method used

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  • A kind of mold release agent for plastic products for food packaging and production method thereof
  • A kind of mold release agent for plastic products for food packaging and production method thereof
  • A kind of mold release agent for plastic products for food packaging and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 1. The raw material components and weight proportions of a release agent for plastic products for food packaging include:

[0049]

[0050]

[0051] Wherein, the water is divided into three parts, including the first part of water, the second part of water and the third part of water, and the weight ratio thereof is 35:20:20.

[0052] 2, the production method of above-mentioned food packaging plastic product release agent, it is characterized in that, comprises:

[0053] Step 1: batching - weighing according to the raw material components and their weight ratio;

[0054] Step 2: Pre-dissolving - mix the distilled glyceryl monostearate and the first part of water in a stirring tank, and heat and stir at 60°C for 1 hour until it melts uniformly;

[0055] Step 3: Raw material premixing - add other raw materials except the second part of water and the third part of water while it is hot, and stir until it is uniform while slowly lowering to room temperature;

[0056...

Embodiment 2

[0060] 1. The raw material components and weight proportions of a release agent for plastic products for food packaging include:

[0061]

[0062]

[0063] Wherein, the water is divided into three parts, including the first part of water, the second part of water and the third part of water, and the weight ratio thereof is 45:30:15.

[0064] 2, the production method of above-mentioned food packaging plastic product release agent, it is characterized in that, comprises:

[0065] Step 1: batching - weighing according to the raw material components and their weight ratio;

[0066] Step 2: Pre-dissolution—mix the distilled glyceryl monostearate and the first part of water in a stirring tank, and heat and stir at 50°C for 1 hour until it melts uniformly;

[0067] Step 3: Raw material premixing - add other raw materials except the second part of water and the third part of water while it is hot, and stir until it is uniform while slowly lowering to room temperature;

[0068]...

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Abstract

The invention provides a plastic release agent for food packaging, which comprises polydimethylsiloxane, silicon dioxide, distilled glyceryl monostearate, polyoxyethylene sorbitan monostearate, polyoxyethylene Ethylene sorbitan monooleate, sorbitan monostearate, sorbitan monooleate, 1,2-propylene glycol, ethanol, oleic acid, benzoic acid and its sodium salt, sorbic acid and its potassium salt and water. The production method includes: batching: weighing the raw material components; predissolving: mixing the distilled glyceryl monostearate and the first part of water and heating and stirring; raw material premixing: adding the second part of water and the third part while hot Stir other raw materials other than part of water; emulsification: add the second part of water, stir at high speed, add the third part of water dropwise, continue to stir at high speed to emulsify. The invention meets the requirements of GB9685 and its supplementary documents, and has the advantages of low price, good demoulding effect, high content of non-volatile matter, and low content of harmful components.

Description

technical field [0001] The invention relates to a release agent, in particular to a release agent for plastic products for food packaging and a production method thereof, in particular to a food-grade polydimethylsiloxane emulsion, which is used for the production of plastic products for food packaging Release, isolate. Background technique [0002] Mold release agent is a functional substance between the mold and the finished product, which prevents rubber, plastic, elastomer or other molded products, laminated products, etc. A class of processing aids. [0003] Among them, polydimethylsiloxane emulsion is a commonly used release agent. At present, it mainly includes industrial grade polydimethylsiloxane emulsion, imported food grade polydimethylsiloxane emulsion and domestic food Three grade polydimethylsiloxane emulsions. [0004] According to the survey, most of the polydimethylsiloxane emulsions that can be used as release agents for plastic products on the market ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/64
Inventor 杨一峰黎皓申
Owner 上海荣信塑料有限公司
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