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Negative ion antistaling material and its manufacturing method

The technology of a fresh-keeping material and manufacturing method, which is applied in the field of fresh-keeping, can solve the problems of insufficient time-period of fresh-keeping and low negative ion content, and achieve the effects of improved dehumidification and fresh-keeping effect, simple manufacturing method, and simple process

Inactive Publication Date: 2004-07-21
程启进
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the negative ion content of this material is less, and the freshness preservation time is not long enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] ① Make 15% natural rare earth ores with negative ions into powder, and the particle size is below 6 microns;

[0026] ②Dry the powder in an oven at 105°C for 1.5 hours, so that the water content of the ore powder is lower than 0.02%,;

[0027] ③ Mix evenly with 5% coupling agent titanate;

[0028] ④ Mix with 50% polypropylene resin, 10% dispersant microcrystalline paraffin, and 20% filler talcum powder at high speed;

[0029] ⑤Extrude and granulate the above-mentioned mixed substance with an extruder to obtain an anion polypropylene fresh-keeping material;

[0030] ⑥ Take the negative ion polypropylene fresh-keeping material prepared in step 5 and mix it with polypropylene resin evenly, the mixing ratio is 1:2, put the mixture into the injection molding machine, and inject different shapes and sizes by changing different molds. Negative ion fresh box. The negative ion concentration that can be produced by the fresh-keeping box can reach 1200-1500 / cm3, and the freshne...

Embodiment 2

[0032] ① Make powder of 20% ferro-tourmaline with negative ions, and the particle size is below 2 microns;

[0033] ②Dry the powder in an oven at 105°C for 2.5 hours, so that the water content of the ore powder is lower than 0.02%,;

[0034] ③ Mix evenly with 6% coupling agent aluminate;

[0035] ④ Mix with 50% polypropylene resin, 14% dispersant PE polymer wax, and 10% filler silica at high speed;

[0036] ⑤ Extrude and granulate the above-mentioned mixed substance with an extruder to obtain an anion polypropylene fresh-keeping material;

[0037] ⑥ Take the negative ion polypropylene fresh-keeping material prepared in step 5 and mix it evenly with polypropylene resin, the mixing ratio is 1:1.6, form a film by blow molding, and heat-press seal to make a negative ion fresh-keeping bag. The negative ion concentration that can be produced by the fresh-keeping bag can reach 1500-1800 / cm3, and the freshness of Chinese cabbage heart can reach more than 10 days, and the freshness o...

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Abstract

An anionic antistaling material is prepared from natural ore powder, coupling agent, high-molecular resin, disperser, and filler through high-speed proportionally mixing, extruding granulating, and injection (or blowing) moulding. Its advantage is hgih effect on killing bacteria, disinfecting, deodoring, demoistening and holding freshness.

Description

technical field [0001] The invention relates to the technical field of fresh-keeping, and more specifically relates to a fresh-keeping material capable of generating negative ions and a manufacturing method thereof. Background technique [0002] Existing normal-temperature fresh-keeping methods for fruits and vegetables generally adopt antiseptic preservatives, adsorbents or plastic wraps to keep fresh. However, these materials all have the problem of short service life, can only be used once, and need to be replaced frequently. I once proposed "A Negative Ion Plastic Material and Its Manufacturing Method". The manufacturing method is to add 5-10 kg of powdery or granular zirconia to every 100 kg of plastic particle raw materials and stir and mix; then enter the injection molding machine together Injection molding, injection molding of negative ion plastic materials. The negative ion content of this material is more than 600 per cubic centimeter. The refrigerator liner, re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/00C08L101/00
Inventor 程启进
Owner 程启进
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