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A kind of non-woven fabric used for magnesium-based self-heating food heating agent and its preparation method

A heating agent and non-woven technology, which is used in food heating containers, packaging food, heat exchange materials, etc., can solve the problems of low calorific value, slow reaction, poor hygienic performance of the heated object, etc., to shorten the heating time, The effect of increasing the reaction rate and improving the hygienic performance

Active Publication Date: 2017-12-12
NO 8511 RES INST OF CASIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional heating agent packaging is mainly made of PET single-layer non-woven fabric. Although the heating effect can be achieved in terms of calorific value, the emulsion produced by the reaction will penetrate through the non-woven fabric, so that the heated object Poor hygienic performance
After using a thicker PET non-woven fabric for packaging, due to the influence of the thickness of the PET, although the hygienic performance is better, the gas generated by the reaction cannot pass through the non-woven fabric in time, causing the reaction to proceed slowly, resulting in a lower calorific value. Low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • A kind of non-woven fabric used for magnesium-based self-heating food heating agent and its preparation method
  • A kind of non-woven fabric used for magnesium-based self-heating food heating agent and its preparation method
  • A kind of non-woven fabric used for magnesium-based self-heating food heating agent and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 10.2g of magnesium powder and 1.2g of iron powder were added by mechanical ball milling method for mechanical ball milling to obtain magnesium-iron alloy particles, and then 0.6g of NaCl was added to prepare heating agent.

[0037] Take the non-woven fabric used for magnesium-based self-heating food heating agent, the outer layer is PET, the inner layer is PP, and the square gram weight of the outer layer PET is 45g / m 2 , the thickness is 0.25mm, the air permeability is 2500mm / s, the transverse tensile strength is 330N / 5cm, the longitudinal tensile strength is 220N / 5cm; the square gram weight of PP non-woven fabric is 10g / m 2 , with a thickness of 0.1mm and an air permeability of 8000mm / s. The non-woven fabric used for the magnesium-based self-heating food heating agent is made into a non-woven bag with a size of 10*15cm and a quadruple package. Add 3g of magnesium-based self-heating food heating agent to make a self-heating food heating agent bag, put the self-heating ...

Embodiment 2

[0040] 10.2g of magnesium powder and 1.2g of iron powder were added by mechanical ball milling method for mechanical ball milling to obtain magnesium-iron alloy particles, and then 0.6g of NaCl was added to prepare heating agent.

[0041] Take the non-woven fabric used for magnesium-based self-heating food heating agent, the outer layer is PET, the inner layer is PP, and the square gram weight of the outer layer PET is 55g / m 2 , the thickness is 0.34mm, the air permeability is 2300mm / s, the transverse tensile strength is 340N / 5cm, the longitudinal tensile strength is 240N / 5cm; the square gram weight of PP non-woven fabric is 10g / m 2, with a thickness of 0.1mm and an air permeability of 8000mm / s. The non-woven fabric used for the magnesium-based self-heating food heating agent is made into a non-woven bag with a size of 10*15cm and a quadruple package. Add 3g of self-heating food heating agent to make a self-heating food heating agent bag, put the heating agent bag into the hea...

Embodiment 3

[0044] 10.2g of magnesium powder and 1.2g of iron powder were added by mechanical ball milling method for mechanical ball milling to obtain magnesium-iron alloy particles, and then 0.6g of NaCl was added to prepare heating agent.

[0045] Take the non-woven fabric used for magnesium-based self-heating food heating agent, the outer layer is PET layer, the inner layer is PP layer, the square gram weight is 75g / m 2 , the air permeability is 1900mm / s, the thickness is 0.5mm, the transverse tensile strength is 350N / 5cm, and the longitudinal tensile strength is 250N / 5cm. The non-woven fabric used for magnesium self-heating food heating agent is made into a size of 10 *15cm, quadruple non-woven bag, put 3g of self-heating food heating agent into each bag opening to make a self-heating food heating agent bag, put the heating agent bag into the heating bag to heat a 240g water bag , Add 30ml of water to the heating bag to initiate the reaction, and record the temperature every 1min. A...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a nonwoven fabric used for a magnesium series self-heating food heating agent, and a preparation method thereof. The nonwoven fabric is formed by an outer layer and an inner layer, the material of the outer layer is PET, the material of the inner layer is PP, and the two-layer nonwoven fabric is formed through ultrasonic compounding. The nonwoven fabric is used for packaging the magnesium series heating agent, can improve the temperature rising performance and shorten the heat release time, and also can improve the sanitary performance of products.

Description

technical field [0001] The invention belongs to the field of chemical heating materials, in particular to a non-woven fabric used as a magnesium-based self-heating food heating agent and a preparation method thereof. Background technique [0002] Self-heating food heating agent uses chemical materials such as metals and non-metals as raw materials. After adding water, a violent chemical reaction occurs. The reaction heat generated can be used to heat food and water. It is widely used in the heating of military instant food and mountaineering tourism. As well as emergency protection for emergencies, and has gradually become market-oriented. The existing self-heating food heating agents at home and abroad mainly include aluminum-based food heating agents and magnesium-based food heating agents. Disadvantages such as low heat loss, heavy heat loss, and easy to be affected by moisture are gradually replaced by the magnesium water reaction system. Magnesium food heating agent i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B27/32B32B27/36B32B37/06C09K5/18B65D30/08B65D81/34
Inventor 黄久华肖蓉李子繁
Owner NO 8511 RES INST OF CASIC
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