CN1963019A - Process for preparing fruit and vegetable fresh-keeping paper made from tourmaline - Google Patents

Abstract

The invention involves a preparation method of fruit and vegetable tourmaline preservation paper and it includes: preparing the tourmaline slurry which particle diameter is 1 -3 microns after the tourmaline crude ore is initial separated, disintegrated, cleaned, magnetic cubed, wet agitated and wet grained; adding the 1-5% tourmaline slurry in to the corrugated paper pulp or the packing paper pulp which percentage by weight is 95-98%, then mixing the paper pulp and the coupling agent which percentage by weight is 0.1% uniform as the paper making raw materials and sending it into the corrugated paper making process line, so preparing the corrugated paper used in packing chest or the polished wrapping paper. The fruit and vegetable tourmaline preservation paper can release negative ions and far infrared rays, it can delay fruit and vegetable respiration, inhibit and kill harmful bacteria, reduce the permeability of the paper, prevent fruits and vegetables evaporating water; the light transmittance is very poor, so it avoids light irradiating the fruit and vegetable to fresh-keeping. It can be used repeatedly, the operation is simple, cost is low, the tourmaline preservation papers used do not cause white pollution, because tourmaline contains about 8.5% of boron which is a fertilizer can develop plant roots.

Description

A kind of preparation method of fruit and vegetable fresh-keeping paper made from tourmaline

Technical field

The present invention relates to the preparation method of a kind of tin foil, particularly a kind of fruit and vegetable fresh-keeping paper made from tourmaline.

Background technology

Along with improving constantly of people's material and culture and living standard, also constantly strengthen the particularly fresh-keeping orchard worker of enjoying, businessman and the consumer's of food such as the fruit that all will consume every day, vegetables concern for consciousness and requirement healthy, environmental protection.At present the storage of fruits and vegetables, in the transportation the airtight fumigation sterilization fresh-keeping of fresh-keeping main employing sulfur dioxide and prevent methods such as the plastic fresh-keeping membrane of water evaporates is fresh-keeping; The former complex process and be difficult to control the concentration of sulfur dioxide easily causes damaging health; The latter need not special equipment, easy and simple to handle, with low cost, but can not sterilization and anticorrosion and airtight, and it is rotten to cause fruits and vegetables to go mouldy easily, and discarded plastic fresh-keeping membrane can cause white pollution.

Summary of the invention

The technical problem to be solved in the present invention provides the preparation method of antibacterial anticorrosion, the ventilative mildew-resistant of a kind of energy, fruit and vegetable fresh-keeping paper made from tourmaline easy and simple to handle, with low cost.

For solving the problems of the technologies described above, technical scheme of the present invention is: its processing step comprises:

1) preparation of tourmaline slurry;

1. gather the tourmaline raw ore through primary election and be crushed to 0.1--0.5 centimetre particle;

2. the cleaning and sterilization sterilization is after magnetic separation gets the tourmaline concentrate;

3. the tourmaline concentrate is crushed to the 15--30 micron through roller mill and gets tourmaline dry powder;

4. tourmaline dry powder is sent into wet type stirring at low speed barreling mill 5-6 hour, changed over to wet type high-speed stirred barreling mill 3-4 hour subsequently, getting particulate is the tourmaline slurry of 1--3 micron;

2) the packing case preparation of corrugated paper;

1. will be by weight percentage for the corrugated paper paper pulp of 95-98% add the tourmaline slurry of 1-5% and 0.1% coupling agent metatitanic acid fat or silane mixture evenly after, send into corrugated paper paper technology line as paper making raw material;

2. dry to add at last and be pressed into corrugated paper;

3) preparation of wrapping paper;

Coupling agent metatitanic acid fat or silane mixture evenly after, send into wrapping paper paper technology line as paper making raw material;

2. last oven dry is polished to wrapping paper.

The invention has the beneficial effects as follows:

1. tourmaline has the characteristic of spontaneous at normal temperatures and pressures release anion and far infrared, the biological static of generation, thereby fresh-keeping paper made from tourmaline is had delay the preservation of fruits and vegetables breathing, inhibition and kill harmful bacterium.

2. adopt inferior nano powder as filler and sizing material, filled the eyelet of the overwhelming majority between paper fibre, reduce the gas permeability of paper, prevent the fruits and vegetables water evaporates; Again because of aphrizite light transmittance extreme difference, thereby avoided light to packing the irradiation of back fruits and vegetables.

3. fresh-keeping paper made from tourmaline is a kind of feature of environmental protection wrapping paper without any side effects, and fruit, vegetables need not to spray antistaling agent or preservative agent, can directly pack, and are simple to operate, with low cost.

4. but its repeated multiple times is used, and the fresh-keeping paper made from tourmaline after the use can not cause white pollution, because tourmaline contains the boron about 8.5%, is a kind of fertilizer that can promote the root system of plant prosperity.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Accompanying drawing is a process flow diagram of the present invention.

The specific embodiment

Embodiment is as shown in drawings: a kind of preparation method of fruit and vegetable fresh-keeping paper made from tourmaline comprises:

1) preparation of tourmaline slurry;

1. gather the tourmaline raw ore through primary election and be crushed to 0.3 centimetre particle;

2. the cleaning and sterilization sterilization is after magnetic separation gets the tourmaline concentrate;

3. the tourmaline concentrate is crushed to the 15-30 micron through roller mill and gets tourmaline dry powder;

4. tourmaline dry powder is sent into wet type stirring at low speed barreling 5 hours, changed over to wet type high-speed stirred barreling mill 4 hours subsequently, getting particulate is the tourmaline slurry of 1-3 micron;

2) the packing case preparation of corrugated paper;

1. will be by weight percentage for the corrugated paper paper pulp of 95-98% add the tourmaline slurry of 1-5% and 0.1% coupling agent metatitanic acid fat or silane mixture evenly after, send into corrugated paper paper technology line as paper making raw material;

2. dry to add at last and be pressed into corrugated paper;

3) preparation of wrapping paper;

1. will be by weight percentage for the wrapping paper paper pulp of 95-98% add the tourmaline slurry of 1-5% and 0.1% coupling agent metatitanic acid fat or silane mixture evenly after, send into wrapping paper paper technology line as paper making raw material;

2. last oven dry is polished to wrapping paper.

Fruit and vegetable fresh-keeping paper made from tourmaline carries out enclose inside formula contrast test respectively in Anyuan County, Jiangxi Province fruit industry association, Edible Fungi management office, Anyuan County, Jiangxi Province and Anyuan County edible fungus exploitation service centre.

The conclusion (of pressure testing) of Anyuan County, Jiangxi Province fruit industry association is: fresh-keeping paper made from tourmaline effect in the navel orange preserving test is used is remarkable, better than the effect that the preservative agent immersion is fresh-keeping, the two contrast, fresh-keeping paper made from tourmaline can prolong storage period more than 30 days than preservative agent is fresh-keeping, and quality appearance is constant.

The conclusion (of pressure testing) of Edible Fungi management office, Anyuan County, Jiangxi Province and Anyuan County edible fungus exploitation service centre is: fresh-keeping paper made from tourmaline can prolong storage period more than 40 days than plastic sheeting is fresh-keeping, and the taste outward appearance is constant.

Employed tourmaline powder in the test (15-30 micron purity 99%) is through the test of national building materials industrial environment monitoring center, and anion is 1256/cm ³, far infrared is tested by Shanghai Inst. of Technical Physics, Chinese Academy of Sciences, and its normal direction emissivity is 91.

Employed fresh-keeping paper made from tourmaline detects by Ganzhou City, Jiangxi Province Quality Supervision Bureau in the test, and mould, pathogenic bacteria, total plate count, coliform etc. all do not detect, and meet the packaging for foodstuff requirement fully.

Result of the test shows, this fresh-keeping paper made from tourmaline spontaneous release anion of energy and far infrared have the fruits and vegetables of delaying breathing, inhibition and kill harmful bacterium, reduce paper gas permeability, prevent the fruits and vegetables water evaporates, the light transmittance extreme difference, avoid light to packing the preservation of back fruits and vegetables irradiation.But its repeated multiple times is used, and the fresh-keeping paper made from tourmaline after the use can not cause white pollution, because tourmaline contains the boron about 8.5%, is a kind of fertilizer that can promote the root system of plant prosperity.

Claims (1)

1. the preparation method of a fruit and vegetable fresh-keeping paper made from tourmaline, it is characterized in that: its processing step comprises:

1) preparation of tourmaline slurry;

1. gather the tourmaline raw ore through primary election and be crushed to 0.1--0.5 centimetre particle;

2. the cleaning and sterilization sterilization is after magnetic separation gets the tourmaline concentrate;

3. the tourmaline concentrate is crushed to the 15-30 micron through roller mill and gets tourmaline dry powder;

4. tourmaline dry powder is sent into wet type stirring at low speed barreling mill 5-6 hour, changed over to wet type high-speed stirred barreling mill 3-4 hour subsequently, getting particulate is the tourmaline slurry of 1-3 micron;

2) the packing case preparation of corrugated paper;

1. will be by weight percentage for the corrugated paper paper pulp of 95-98% add the tourmaline slurry of 1-5% and 0.1% coupling agent metatitanic acid fat or silane mixture evenly after, send into corrugated paper paper technology line as paper making raw material;

2. dry to add at last and be pressed into corrugated paper;

3) preparation of wrapping paper;

1. will be by weight percentage for the wrapping paper paper pulp of 95-98% add the tourmaline slurry of 1-5% and 0.1% coupling agent metatitanic acid fat or silane mixture evenly after, send into wrapping paper paper technology line as paper making raw material;

2. last oven dry is polished to wrapping paper.

Images