CN101153474A - Dual controlled release fruits and vegetables fresh-keeping paper and manufacturing method thereof - Google Patents
Dual controlled release fruits and vegetables fresh-keeping paper and manufacturing method thereof Download PDFInfo
- Publication number
- CN101153474A CN101153474A CNA2006100159969A CN200610015996A CN101153474A CN 101153474 A CN101153474 A CN 101153474A CN A2006100159969 A CNA2006100159969 A CN A2006100159969A CN 200610015996 A CN200610015996 A CN 200610015996A CN 101153474 A CN101153474 A CN 101153474A
- Authority
- CN
- China
- Prior art keywords
- paper
- controlled release
- keeping
- fruits
- fresh
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
A double controllable releasing fruit and vegetable fresh-keep paper consists of three layers of paper-plastics composite materials or two layers of paper-plastics composite materials and a layer of base paper and two kinds of different controllable releasing preservatives, wherein, the different preservatives are respectively arranged in the centers of two sandwiches formed by the three layers of paper-plastics composite materials or the two layers of paper-plastics composite materials and the layer of base paper, and the preservatives in the sandwiches are distributed in a discontinuous grid shape. The aim of creating an optimum anticorrosion sterilization storage preservation environment can be achieved by selecting species of effective components of preservatives, changing a speed of controlling and releasing the formulas of the preservatives, adjusting indexes of ventilating and moisture permeability of the fresh-keep paper structure material, thereby greatly prolonging the transporting preservation period of a preserved product and improving the quality of the product, and improving economic benefit of transportation and preservation. The controllable releasing fruit and vegetable fresh-keep paper can fulfill transportation and preservation requirements of most varieties of the prior fruits and vegetables through omnidirectional and multivariate regulation, and provides very high application value in static preservation.
Description
Technical field
The invention belongs to the agricultural products fresh-keeping field, particularly a kind of dual controlled release fruits and vegetables fresh-keeping paper and preparation method thereof.
Background technology
In the transportation fresh-retaining process of fruits and vegetables, adopt suitable anticorrosion and bactericidal agent to suppress the breeding of postharvest fruit and vegetable microorganism, reach and prolong the fruit vegetables storing transportation time limit to keep the purpose of original local flavor of fruits and vegetables and freshness better be an important technique measure that is applied to the fresh-keeping field of fruit and vegetable storage and transportation at present.In recent years; formation along with adjustment, compartmentalization and the kind large-scale production pattern of fruits and vegetables pattern of farming; interlocal fruits and vegetables transport the supply of circulation, mistake season product and the world, the domestic big circulation that the adjustment between the kind has formed fruit and vegetable food mutually, the fresh-keeping key link then becoming in its circulation of fruit and vegetable food between the delivery period.According to statistics, because the influence of transportation fresh-retaining factor, the loss that causes in various fruit and vegetable transportations is up to 20%--30%, therefore, how to improve fruits and vegetables transportation fresh-retaining technical merit as early as possible, adopt the preservation technique means of more advanced science, reduce the task of top priority that the loss of quantity and quality in the fruit and vegetable food has become current fruits and vegetables circulation industry development to greatest extent.The scientific worker of the domestic and international fresh-keeping research field progressively emphasis of fresh-keeping research is fresh-keeping to dynamic fresh-keeping transfer from static state.
Dynamic fresh-keeping and traditional static fresh-keeping in the fruits and vegetables transportation has bigger difference, the static fresh-keeping suitable preservation and freshness condition such as comparatively stable temperature, gas, humidity that in fixing preservation and freshness environment, has, the fruit and vegetable food freshness date is longer, can keep its original local flavor and quality better, and fruit and vegetable food in transportation because the restriction of traffic condition and the influence of extraneous factor, be difficult to reach the static fresh-keeping the sort of suitable preservation and freshness condition that has, fresh-keeping time limit and fresh-keeping effect are all with the static fresh-keeping bigger difference that has.With regard to antistaling agent, in the transportation fresh-retaining process, use, just require it to have the scope of application more widely, to satisfy the requirement under different fruit and vegetable varieties and the different transportation fresh-retaining condition.
Tin foil is a kind of antisepsis antistaling agent formulation and the mode that fruit and vegetable food the most generally adopts in the transportation fresh-retaining process, fruits and vegetables fresh-keeping paper profile neat appearance, the commodity performance is splendid, the overall impression of giving the consumer is that the another kind of fruit and vegetable food is decorated packing, because the wherein contained antistaling agent of tin foil all is hidden in the centre of which floor composite paper-plastic material and body paper, eliminated the consumer to adding the doubt of chemical agent, since this product self-application, being subjected to operator and consumer's common approval, is that a kind of antistaling agent that has development prospect uses formulation.The fruit and vegetable fresh-keeping agent of current domestic and international use all is regulation and control that technology that adopt to adjust the prescription of medicament and formulation realizes rate of release, never relate to the content that the performance indications of utilizing composite and body paper reach the purpose of regulation and control rate of release, and, domestic tin foil also all is the application process that adopts two layers of packaging material therebetween one deck storage chemical, used storage chemical active ingredient kind is few, delivery mode is single, range of application is narrower, can not satisfy the different transportation time limits, different traffic conditions be subjected to the different places of production, season, the requirement of the anti-corrosive fresh-keeping of the shipping products of factor affecting before kind and complicated and changeable the adopting.
Summary of the invention
Technical problem to be solved by this invention is: a kind of dual controlled release fruits and vegetables fresh-keeping paper is provided.
Technical scheme of the present invention is: a kind of dual controlled release fruits and vegetables fresh-keeping paper, it is characterized in that this dual controlled release fruits and vegetables fresh-keeping paper is made up of three-ply paper plastic composite materials or two layers of composite paper-plastic material and one deck body paper controlled release antistaling agent different with two kinds.Different antistaling agents are positioned over respectively in the middle of two interlayers that formed by three-ply paper plastic composite materials or two layers of composite paper-plastic material and one deck body paper.Antistaling agent is discontinuous grid-like distribution in interlayer.
The purpose of this invention is to provide a kind of brand-new dual controlled release fruits and vegetables fresh-keeping paper, it adds two kinds of antistaling agents or two layers of composite paper-plastic material and one deck body paper by the three-ply paper plastic composite materials and adds two kinds of antistaling agents and process through hot synthetic type.Wherein, composite paper-plastic material is by 18-55g/m
2Candy wrapper and 1025-25g/m
2Polyethylene is composited through curtain coating processing.Body paper is 28-60g/m
2Candy wrapper or brown paper.The active ingredient of storage chemical is sulfites, hypochlorous acid salt, chlorous acid salt and sec-butylamine salt.
This dual controlled release fruits and vegetables fresh-keeping paper, its preparation method:
The adjustment of dual controlled release fruits and vegetables fresh-keeping paper rate of release is undertaken by following four kinds of modes:
The rate of release of the A tin foil first interlayer antistaling agent is by the thickness decision of the polyethylene curtain coating rete in the ground floor composite paper-plastic material, and its effective thickness range is 0.00-60.055mm.
B second layer composite paper-plastic material is a barrier layer, and its effect is to make two kinds of antistaling agents not carry out the mass transfer exchange when storage environment is used, influence fresh-keeping effect, and the thickness of wherein contained polyethylene curtain coating rete is 0.01-0.08mm.
The rate of release of the C tin foil second interlayer antistaling agent is by the characteristic decision of the thickness or the body paper of the polyethylene curtain coating rete in the three-ply paper plastic composite materials, the thickness range of the polyethylene curtain coating rete in the three-ply paper plastic composite materials is 0.006-0.055mm, the thickness of body paper is 0.04-0.45mm, and the air permeability of body paper is 0.1 μ m/Pa.S--15 μ m/Pa.S.
The active ingredient of antistaling agent is in two interlayers of D: sulfites, hypochlorous acid salt, chlorous acid salt and sec-butylamine salt.Controlled release agent is., silica gel, rosin, stearic acid, tartaric acid and sodium carbonate etc.
Antistaling agent in the dual controlled release fruits and vegetables fresh-keeping paper is positioned at the grid of the non-heat seal part in tin foil plane, and the length of grid is 30-85mm not, and width is 25-50mm.Tin foil can use also and can use by many lattice disjunctor by single lattice, uses the lattice number to be 1-36.
This dual controlled release fruits and vegetables fresh-keeping paper, its preparation method:
1, the preparation of antistaling agent a:
Taking by weighing 25kg sodium pyrosulfite, 1.0kg respectively has been crushed to 60 purpose colophony powders, 0.36kg stearic acid, 3.2kg and has been crushed to 60 purpose silica whites, place the enterprising pedestrian worker's premixed of place's clean water mud ground face, enter double-cone mixer after mixing and carry out heater and mix.The double-cone mixer that is adopted has the jacket steam heater; slowly rise surely to temperature of charge be 30-85 ℃; under this temperature, mixed 4-6 minute; discharging naturally cools to room temperature, at this moment; above-mentioned material condenses into loose type blocks of solid; hand breaking is made the following pellet of 30 orders with the screen cloth comminutor, is equipped with packing and uses.
2, the preparation of antistaling agent b:
Have at 50L and to add 10kg water in the glassed steel reaction vessels of stirring, open and stir and the chuck cooling water, under stirring condition, in still, drip 98% concentrated sulfuric acid 5kg, the control rate of addition makes expects in the still in the dropping process that temperature is less than 45 ℃, after dropwising, continue to stir to be cooled to and expect in the still that temperature is less than 30 ℃, begin in still, to drip 2-butylamine 8kg this moment, the control rate of addition makes expects in the still in the dropping process that temperature is less than 55 ℃-65 ℃, after dropwising, material is discarded in the corresponding stainless steel open container while hot immediately.
The material of emitting cools off naturally, standing over night, separate out a large amount of 2-butylamine sulphate crystals, separate with stainless steel tripod pendulum type batch centrifugal, solid portion enters the vacuum desiccator drying, drier vacuum is greater than 0.09MPa, baking temperature is less than 60 ℃, and when drying to moisture content of material discharging less than 2% time, the material that drying finishes is crushed to below 60 orders with pulverizer.
The 2-butylamine sulfate that crushes and the industrial natrium carbonicum calcinatum ratio in 1: 1 is mixed with vertical mixer, and antistaling agent b is promptly made in discharging, is equipped with packing and uses.
3, dual controlled release fruits and vegetables fresh-keeping paper:
In dual controlled release fruits and vegetables fresh-keeping paper shaping packager first feeder, add antistaling agent a, add antistaling agent b in second feeder.
Choosing the polyethylene thickness is that 0.05mm, candy wrapper quantitatively are 30g/m
2Composite paper-plastic material be the separation layer of dual controlled release fruits and vegetables fresh-keeping paper, its application specification is that fabric width is the reel material of 250mm, with this composite paper-plastic material coiled material pack into the dual controlled release fruits and vegetables fresh-keeping paper shaping packager second on the paper frame, during last paper with plastic cover paper frame on the 3rd of composite paper-plastic material coiled material.Choose and quantitatively be 56g/m
2, air permeability is that the brown paper of 0.6 μ m/pa.s is second releasing layer of dual controlled release fruits and vegetables fresh-keeping paper, its application specification is that fabric width is the reel material of 250mm, with this coiled material pack into the dual controlled release fruits and vegetables fresh-keeping paper shaping packager the 3rd on the paper frame.Cut off the Isolating Switch of second feeder, open packing machine, second pair of heat-sealing roller turns round, pull out on second on the paper frame and the 3rd after the overlapping alignment of two coiled materials on the paper frame, progressively it is sent in the second heat-sealing roller, adjust that tensioning apparatus in paper frame makes two coiled materials straight in running, neat on second and third, and make the double-layer composite material after the heat seal smooth, well-pressed.Adjust the heating-up temperature and the rotating speed of second pair of heat-sealing roller, make that the heat seal lands involution is tight, the involution lines is clear, do not misplace.After more than adjustment meets the requirements, stop the running of second pair of heat-sealing roller.
Choosing the polyethylene thickness is that 0.035mm, candy wrapper quantitatively are 45g/m
2Composite paper-plastic material be first releasing layer of dual controlled release fruits and vegetables fresh-keeping paper, its application specification is that fabric width is the reel material of 250mm, with this composite paper-plastic material coiled material pack into the dual controlled release fruits and vegetables fresh-keeping paper shaping packager first on the paper frame, during last paper with plastic cover paper frame on second of composite paper-plastic material coiled material.Cut off the Isolating Switch of first feeder, open packing machine, first pair of heat-sealing roller turns round, after the overlapping alignment of double-layer composite material of pulling out the coiled material on the paper frame on first and having processed, progressively it is sent in the first heat-sealing roller, the second pair of heat-sealing roller that turn round adjusts that the tensioning apparatus in the paper frame on first makes coiled material and the double-layer composite material that processed is straight in running, neat, and makes the 3-layer composite material after the heat seal smooth, well-pressed.Adjust the heating-up temperature and the rotating speed of first pair of heat-sealing roller, make that the heat seal lands involution is tight, the involution lines is clear, do not misplace.
Adjust the tooth position of synchromesh gear, first pair of heat-sealing roller and second pair of heat-sealing roller heat seal zone are overlapped fully, open the Isolating Switch of second feeder, whether observe second feeder moves correctly, whether feeding quantity is stable, adjust the reinforced aperture of second feeder, making feeding quantity is 0.5 ± 0.05g, examine first again, two, the heat seal situation of three layers of packaging material has no change, if it is normal, then can open the Isolating Switch of first feeder, adjust as stated above and operate, making the first feeder feeding quantity is 1.0 ± 0.1g, at this moment, the dual controlled release fruits and vegetables fresh-keeping paper shaping packager enters normal operating condition, design parameter according to feeding device and heat seal device is different with structure, can produce 4-8 row dual controlled release fruits and vegetables fresh-keeping paper, and the every lattice of this tin foil contain a antistaling agent 1.0g, contain b antistaling agent 0.5g.This dual controlled release fruits and vegetables fresh-keeping paper can be cut into suitable shape according to actual needs and the lattice number uses.
Effect of the present invention is:
Dual controlled release fruits and vegetables fresh-keeping paper of the present invention is exactly according to the diversity of present fruit and vegetable food transportation fresh-retaining and the needs of complexity, antistaling process at a certain fruit and vegetable varieties, on purpose select antistaling agent active ingredient kind, change antistaling agent prescription control rate of release, ventilative, the water vapour permeability index of adjusting the tin foil structural material reach the purpose of creating optimum antisepsis and sterilization preservation and freshness environment, prolong the fresh products transportation fresh-retaining phase significantly and improved product quality, increased the transportation fresh-retaining economic benefit.By comprehensive, multifactorial regulation and control, dual controlled release fruits and vegetables fresh-keeping paper can satisfy the transportation fresh-retaining requirement of existing most fruit and vegetable varieties, has broad application prospects.Simultaneously, dual controlled release fruits and vegetables fresh-keeping paper also has very high using value at static fresh-keeping aspect.
Specific embodiment
A kind of dual controlled release fruits and vegetables fresh-keeping paper, this dual controlled release fruits and vegetables fresh-keeping paper is made up of three-ply paper plastic composite materials or two layers of composite paper-plastic material and one deck body paper controlled release antistaling agent different with two kinds.Different antistaling agents are positioned over respectively in the middle of two interlayers that formed by three-ply paper plastic composite materials or two layers of composite paper-plastic material and one deck body paper.Antistaling agent is discontinuous grid-like distribution in interlayer.
It adds two kinds of antistaling agents or two layers of composite paper-plastic material and one deck body paper by the three-ply paper plastic composite materials and adds two kinds of antistaling agents and process through hot synthetic type.Wherein, composite paper-plastic material is by 18-55g/m
2Candy wrapper and 10-25g/m
2Polyethylene is composited through curtain coating processing.Body paper 28-60g/m
2Candy wrapper or brown paper.The active ingredient of storage chemical is sulfites, hypochlorous acid salt, chlorous acid salt and sec-butylamine salt.
This dual controlled release fruits and vegetables fresh-keeping paper, its preparation method:
The adjustment of fruits and vegetables fresh-keeping paper rate of release is undertaken by following four kinds of modes:
The rate of release of the A tin foil first interlayer antistaling agent is by the thickness decision of the polyethylene curtain coating rete in the ground floor composite paper-plastic material, and its effective thickness range is 0.00-60.055mm.
B second layer composite paper-plastic material is a barrier layer, and its effect is to make two kinds of antistaling agents not carry out the mass transfer exchange when storage environment is used, influence fresh-keeping effect, and the thickness of wherein contained polyethylene curtain coating rete is 0.01-0.08mm.
The rate of release of the C tin foil second interlayer antistaling agent is by the characteristic decision of the thickness or the body paper of the polyethylene curtain coating rete in the three-ply paper plastic composite materials, the thickness range of the polyethylene curtain coating rete in the three-ply paper plastic composite materials is 0.006-0.055mm, the thickness of body paper is 0.04-0.45mm, and the air permeability of body paper is 0.1 μ m/Pa.S--15 μ m/Pa.S.
The active ingredient of antistaling agent is in two interlayers of D: sulfites, hypochlorous acid salt, chlorous acid salt and sec-butylamine salt.Controlled release agent is., silica gel, rosin, stearic acid, tartaric acid and sodium carbonate etc.
Antistaling agent in the dual controlled release fruits and vegetables fresh-keeping paper is positioned at the grid of the non-heat seal part in tin foil plane, and the length of grid is 30-85mm not, and width is 25-50mm.Tin foil can use also and can use by many lattice disjunctor by single lattice, uses the lattice number to be 1-36.
This dual controlled release fruits and vegetables fresh-keeping paper, its preparation method:
4, the preparation of antistaling agent a:
Taking by weighing 25kg sodium pyrosulfite, 1.0kg respectively has been crushed to 60 purpose colophony powders, 0.36kg stearic acid, 3.2kg and has been crushed to 60 purpose silica whites, place the enterprising pedestrian worker's premixed of place's clean water mud ground face, enter double-cone mixer after mixing and carry out heater and mix.The double-cone mixer that is adopted has the jacket steam heater; slowly rise surely to temperature of charge be 3085 ℃; under this temperature, mixed 4-6 minute; discharging naturally cools to room temperature, at this moment; above-mentioned material condenses into loose type blocks of solid; hand breaking is made the following pellet of 30 orders with the screen cloth comminutor, is equipped with packing and uses.
5, the preparation of antistaling agent b:
Have at 50L and to add 10kg water in the glassed steel reaction vessels of stirring, open and stir and the chuck cooling water, under stirring condition, in still, drip 98% concentrated sulfuric acid 5kg, the control rate of addition makes expects in the still in the dropping process that temperature is less than 45 ℃, after dropwising, continue to stir to be cooled to and expect in the still that temperature is less than 30 ℃, begin in still, to drip 2-butylamine 8kg this moment, the control rate of addition makes expects in the still in the dropping process that temperature is less than 55 ℃-65 ℃, after dropwising, material is discarded in the corresponding stainless steel open container while hot immediately.
The material of emitting cools off naturally, standing over night, separate out a large amount of 2-butylamine sulphate crystals, separate with stainless steel tripod pendulum type batch centrifugal, solid portion enters the vacuum desiccator drying, drier vacuum is greater than 0.09MPa, baking temperature is less than 60 ℃, and when drying to moisture content of material discharging less than 2% time, the material that drying finishes is crushed to below 60 orders with pulverizer.
The 2-butylamine sulfate that crushes and the industrial natrium carbonicum calcinatum ratio in 1: 1 is mixed with vertical mixer, and antistaling agent b is promptly made in discharging, is equipped with packing and uses.
6, dual controlled release fruits and vegetables fresh-keeping paper:
In dual controlled release fruits and vegetables fresh-keeping paper shaping packager first feeder, add antistaling agent a, add antistaling agent b in second feeder.
Choosing the polyethylene thickness is that 0.05mm, candy wrapper quantitatively are 30g/m
2Composite paper-plastic material be the separation layer of dual controlled release fruits and vegetables fresh-keeping paper, its application specification is that fabric width is the reel material of 250mm, with this composite paper-plastic material coiled material pack into the dual controlled release fruits and vegetables fresh-keeping paper shaping packager second on the paper frame, during last paper with plastic cover paper frame on the 3rd of composite paper-plastic material coiled material.Choose and quantitatively be 56g/m
2, air permeability is that the brown paper of 0.6 μ m/pa.s is second releasing layer of dual controlled release fruits and vegetables fresh-keeping paper, its application specification is that fabric width is the reel material of 250mm, with this coiled material pack into the dual controlled release fruits and vegetables fresh-keeping paper shaping packager the 3rd on the paper frame.Cut off the Isolating Switch of second feeder, open packing machine, second pair of heat-sealing roller turns round, pull out on second on the paper frame and the 3rd after the overlapping alignment of two coiled materials on the paper frame, progressively it is sent in the second heat-sealing roller, adjust that tensioning apparatus in paper frame makes two coiled materials straight in running, neat on second and third, and make the double-layer composite material after the heat seal smooth, well-pressed.Adjust the heating-up temperature and the rotating speed of second pair of heat-sealing roller, make that the heat seal lands involution is tight, the involution lines is clear, do not misplace.After more than adjustment meets the requirements, stop the running of second pair of heat-sealing roller.
Choosing the polyethylene thickness is that 0.035mm, candy wrapper quantitatively are 45g/m
2Composite paper-plastic material be first releasing layer of dual controlled release fruits and vegetables fresh-keeping paper, its application specification is that fabric width is the reel material of 250mm, with this composite paper-plastic material coiled material pack into the dual controlled release fruits and vegetables fresh-keeping paper shaping packager first on the paper frame, during last paper with plastic cover paper frame on second of composite paper-plastic material coiled material.Cut off the Isolating Switch of first feeder, open packing machine, first pair of heat-sealing roller turns round, after the overlapping alignment of double-layer composite material of pulling out the coiled material on the paper frame on first and having processed, progressively it is sent in the first heat-sealing roller, the second pair of heat-sealing roller that turn round adjusts that the tensioning apparatus in the paper frame on first makes coiled material and the double-layer composite material that processed is straight in running, neat, and makes the 3-layer composite material after the heat seal smooth, well-pressed.Adjust the heating-up temperature and the rotating speed of first pair of heat-sealing roller, make that the heat seal lands involution is tight, the involution lines is clear, do not misplace.
Adjust the tooth position of synchromesh gear, first pair of heat-sealing roller and second pair of heat-sealing roller heat seal zone are overlapped fully, open the Isolating Switch of second feeder, whether observe second feeder moves correctly, whether feeding quantity is stable, adjust the reinforced aperture of second feeder, making feeding quantity is 0.5 ± 0.05g, examine first again, two, the heat seal situation of three layers of packaging material has no change, if it is normal, then can open the Isolating Switch of first feeder, adjust as stated above and operate, making the first feeder feeding quantity is 1.0 ± 0.1g, at this moment, the dual controlled release fruits and vegetables fresh-keeping paper shaping packager enters normal operating condition, design parameter according to feeding device and heat seal device is different with structure, can produce 4-8 row dual controlled release fruits and vegetables fresh-keeping paper, and the every lattice of this tin foil contain a antistaling agent 1.0g, contain b antistaling agent 0.5g.This dual controlled release fruits and vegetables fresh-keeping paper can be cut into suitable shape according to actual needs and the lattice number uses.
Claims (5)
1. a dual controlled release fruits and vegetables fresh-keeping paper is characterized in that, this dual controlled release fruits and vegetables fresh-keeping paper is made up of three-ply paper plastic composite materials or two layers of composite paper-plastic material and one deck body paper controlled release antistaling agent different with two kinds; Different antistaling agents are positioned over respectively in the middle of two interlayers that formed by three-ply paper plastic composite materials or two layers of composite paper-plastic material and one deck body paper; Antistaling agent is discontinuous grid-like distribution in interlayer.
2. dual controlled release fruits and vegetables fresh-keeping paper according to claim 1 is characterized in that, wherein, composite paper-plastic material is by 18-55g/m
2Candy wrapper and 10-25g/m
2Polyethylene is composited through curtain coating processing; Body paper 28-60g/m
2Candy wrapper or brown paper.
3. dual controlled release fruits and vegetables fresh-keeping paper according to claim 1 is characterized in that, wherein, the active ingredient of storage chemical is sulfites, hypochlorous acid salt, chlorous acid salt and sec-butylamine salt.
4. dual controlled release fruits and vegetables fresh-keeping paper preparation method according to claim 1: the adjustment of its rate of release is undertaken by following four kinds of modes:
The rate of release of the A tin foil first interlayer antistaling agent is by the thickness decision of the polyethylene curtain coating rete in the ground floor composite paper-plastic material, and its effective thickness range is 0.006-0.055mm;
B second layer composite paper-plastic material is a barrier layer, and its effect is to make two kinds of antistaling agents not carry out the mass transfer exchange when storage environment is used, influence fresh-keeping effect, and the thickness of wherein contained polyethylene curtain coating rete is 0.01-0.08mm;
The rate of release of the C tin foil second interlayer antistaling agent is by the characteristic decision of the thickness or the body paper of the polyethylene curtain coating rete in the three-ply paper plastic composite materials, the thickness range of the polyethylene curtain coating rete in the three-ply paper plastic composite materials is 0.006-0.055mm, the thickness of body paper is 0.04-0.45mm, and the air permeability of body paper is 0.1 μ m/Pa.S--15 μ m/Pa.S;
The active ingredient of antistaling agent is in two interlayers of D: sulfites, hypochlorous acid salt, chlorous acid salt and sec-butylamine salt; Controlled release agent is silica gel, rosin, stearic acid, tartaric acid and sodium carbonate etc.
5. dual controlled release fruits and vegetables fresh-keeping paper preparation method according to claim 4:
The preparation of antistaling agent a:
Taking by weighing 25kg sodium pyrosulfite, 1.0kg respectively has been crushed to 60 purpose colophony powders, 0.36kg stearic acid, 3.2kg and has been crushed to 60 purpose silica whites, place the enterprising pedestrian worker's premixed of place's clean water mud ground face, enter double-cone mixer after mixing and carry out heater and mix.The double-cone mixer that is adopted has the jacket steam heater; slowly rise surely to temperature of charge be 30-85 ℃; under this temperature, mixed 4-6 minute; discharging naturally cools to room temperature, at this moment; above-mentioned material condenses into loose type blocks of solid; hand breaking is made the following pellet of 30 orders with the screen cloth comminutor, is equipped with packing and uses: the preparation of antistaling agent b:
Have at 50L and to add 10kg water in the glassed steel reaction vessels of stirring, open and stir and the chuck cooling water, under stirring condition, in still, drip 98% concentrated sulfuric acid 5kg, the control rate of addition makes expects in the still in the dropping process that temperature is less than 45 ℃, after dropwising, continue to stir to be cooled to and expect in the still that temperature is less than 30 ℃, begin in still, to drip 2-butylamine 8kg this moment, the control rate of addition makes expects in the still in the dropping process that temperature is less than 55 ℃-65 ℃, after dropwising, while hot material is discarded in the corresponding stainless steel open container immediately;
The material of emitting cools off naturally, standing over night, separate out a large amount of 2-butylamine sulphate crystals, separate with stainless steel tripod pendulum type batch centrifugal, solid portion enters the vacuum desiccator drying, drier vacuum is greater than 0.09MPa, baking temperature is less than 60 ℃, and when drying to moisture content of material discharging less than 2% time, the material that drying finishes is crushed to below 60 orders with pulverizer;
The 2-butylamine sulfate that crushes and the industrial natrium carbonicum calcinatum ratio in 1: 1 is mixed with vertical mixer, and antistaling agent b is promptly made in discharging, is equipped with packing and uses;
Dual controlled release fruits and vegetables fresh-keeping paper:
In dual controlled release fruits and vegetables fresh-keeping paper shaping packager first feeder, add antistaling agent a, add antistaling agent b in second feeder;
Choosing the polyethylene thickness is that 0.05mm, candy wrapper quantitatively are 30g/m
2Composite paper-plastic material be the separation layer of dual controlled release fruits and vegetables fresh-keeping paper, its application specification is that fabric width is the reel material of 250mm, with this composite paper-plastic material coiled material pack into the dual controlled release fruits and vegetables fresh-keeping paper shaping packager second on the paper frame, during last paper with plastic cover paper frame on the 3rd of composite paper-plastic material coiled material; Choose and quantitatively be 56g/m
2, air permeability is that the brown paper of 0.6 μ m/pa.s is second releasing layer of dual controlled release fruits and vegetables fresh-keeping paper, its application specification is that fabric width is the reel material of 250mm, with this coiled material pack into the dual controlled release fruits and vegetables fresh-keeping paper shaping packager the 3rd on the paper frame; Cut off the Isolating Switch of second feeder, open packing machine, second pair of heat-sealing roller turns round, pull out on second on the paper frame and the 3rd after the overlapping alignment of two coiled materials on the paper frame, progressively it is sent in the second heat-sealing roller, adjust that tensioning apparatus in paper frame makes two coiled materials straight in running, neat on second and third, and make the double-layer composite material after the heat seal smooth, well-pressed; Adjust the heating-up temperature and the rotating speed of second pair of heat-sealing roller, make that the heat seal lands involution is tight, the involution lines is clear, do not misplace; After more than adjustment meets the requirements, stop the running of second pair of heat-sealing roller;
Choosing the polyethylene thickness is that 0.035mm, candy wrapper quantitatively are 45g/m
2Composite paper-plastic material be first releasing layer of dual controlled release fruits and vegetables fresh-keeping paper, its application specification is that fabric width is the reel material of 250mm, with this composite paper-plastic material coiled material pack into the dual controlled release fruits and vegetables fresh-keeping paper shaping packager first on the paper frame, during last paper with plastic cover paper frame on second of composite paper-plastic material coiled material; Cut off the Isolating Switch of first feeder, open packing machine, first pair of heat-sealing roller turns round, after the overlapping alignment of double-layer composite material of pulling out the coiled material on the paper frame on first and having processed, progressively it is sent in the first heat-sealing roller, the second pair of heat-sealing roller that turn round adjusts that the tensioning apparatus in the paper frame on first makes coiled material and the double-layer composite material that processed is straight in running, neat, and makes the 3-layer composite material after the heat seal smooth, well-pressed; Adjust the heating-up temperature and the rotating speed of first pair of heat-sealing roller, make that the heat seal lands involution is tight, the involution lines is clear, do not misplace;
Adjust the tooth position of synchromesh gear, first pair of heat-sealing roller and second pair of heat-sealing roller heat seal zone are overlapped fully, open the Isolating Switch of second feeder, whether observe second feeder moves correctly, whether feeding quantity is stable, adjust the reinforced aperture of second feeder, making feeding quantity is 0.5 ± 0.05g, examine first again, two, the heat seal situation of three layers of packaging material has no change, if it is normal, then can open the Isolating Switch of first feeder, adjust as stated above and operate, making the first feeder feeding quantity is 1.0 ± 0.1g, at this moment, the dual controlled release fruits and vegetables fresh-keeping paper shaping packager enters normal operating condition, design parameter according to feeding device and heat seal device is different with structure, can produce 4-8 row dual controlled release fruits and vegetables fresh-keeping paper, and the every lattice of this tin foil contain a antistaling agent 1.0g, contain b antistaling agent 0.5g; This dual controlled release fruits and vegetables fresh-keeping paper can be cut into suitable shape according to actual needs and the lattice number uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100159969A CN101153474A (en) | 2006-09-26 | 2006-09-26 | Dual controlled release fruits and vegetables fresh-keeping paper and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100159969A CN101153474A (en) | 2006-09-26 | 2006-09-26 | Dual controlled release fruits and vegetables fresh-keeping paper and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101153474A true CN101153474A (en) | 2008-04-02 |
Family
ID=39255337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100159969A Pending CN101153474A (en) | 2006-09-26 | 2006-09-26 | Dual controlled release fruits and vegetables fresh-keeping paper and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101153474A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101926387A (en) * | 2010-09-17 | 2010-12-29 | 天津农科食品生物科技有限公司 | Pollution-free grape fresh-keeping mat and preparation method thereof |
| CN101601420B (en) * | 2009-06-30 | 2012-06-20 | 北京印刷学院 | Controlled-bactericide-release fruit and vegetable preservative packaging composite film, preparation method thereof, and use thereof |
| CN104553204A (en) * | 2015-01-30 | 2015-04-29 | 国家农产品保鲜工程技术研究中心（天津） | Coating type controlled-release grape preservation paper |
| CN104643254A (en) * | 2013-11-25 | 2015-05-27 | 海尔集团公司 | Antibacterial and freshness-retaining composition, antibacterial and freshness-retaining bags, antibacterial and freshness-retaining device and refrigerator |
| CN106081345A (en) * | 2016-06-23 | 2016-11-09 | 俞锃 | A kind of compound fruits and vegetables fresh-keeping paper |
| CN106522029A (en) * | 2016-11-03 | 2017-03-22 | 张静 | Preparation method of long-acting fiber carbon based grape preservative paper |
| CN112369464A (en) * | 2020-11-19 | 2021-02-19 | 渤海大学 | Preparation method of green slow-release preservative paper applied to fruit and vegetable preservation |
| CN115230264A (en) * | 2022-07-11 | 2022-10-25 | 北京科技大学 | Intelligent controlled-release fresh-keeping composite film capable of preventing contact surface from discoloring |
-
2006
- 2006-09-26 CN CNA2006100159969A patent/CN101153474A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101601420B (en) * | 2009-06-30 | 2012-06-20 | 北京印刷学院 | Controlled-bactericide-release fruit and vegetable preservative packaging composite film, preparation method thereof, and use thereof |
| CN101926387A (en) * | 2010-09-17 | 2010-12-29 | 天津农科食品生物科技有限公司 | Pollution-free grape fresh-keeping mat and preparation method thereof |
| CN104643254B (en) * | 2013-11-25 | 2018-10-12 | 海尔集团公司 | Anti-bacterial refreshing device and refrigerator |
| CN104643254A (en) * | 2013-11-25 | 2015-05-27 | 海尔集团公司 | Antibacterial and freshness-retaining composition, antibacterial and freshness-retaining bags, antibacterial and freshness-retaining device and refrigerator |
| WO2015074527A1 (en) * | 2013-11-25 | 2015-05-28 | 海尔集团公司 | Antibacterial preservative composition, antibacterial preservative bag, antibacterial preservative device and refrigerator |
| CN104553204A (en) * | 2015-01-30 | 2015-04-29 | 国家农产品保鲜工程技术研究中心（天津） | Coating type controlled-release grape preservation paper |
| CN106081345A (en) * | 2016-06-23 | 2016-11-09 | 俞锃 | A kind of compound fruits and vegetables fresh-keeping paper |
| CN106081345B (en) * | 2016-06-23 | 2018-02-16 | 俞锃 | A kind of compound fruits and vegetables fresh-keeping paper and preparation method and application method |
| CN106522029A (en) * | 2016-11-03 | 2017-03-22 | 张静 | Preparation method of long-acting fiber carbon based grape preservative paper |
| CN106522029B (en) * | 2016-11-03 | 2018-06-12 | 广州万粤知识产权运营有限公司 | A kind of preparation method of long-acting fiber charcoal base antistaling paper for grapes |
| CN112369464A (en) * | 2020-11-19 | 2021-02-19 | 渤海大学 | Preparation method of green slow-release preservative paper applied to fruit and vegetable preservation |
| CN115230264A (en) * | 2022-07-11 | 2022-10-25 | 北京科技大学 | Intelligent controlled-release fresh-keeping composite film capable of preventing contact surface from discoloring |
| CN115230264B (en) * | 2022-07-11 | 2023-06-27 | 北京科技大学 | Intelligent controlled release fresh-keeping composite film capable of preventing contact surface from changing color |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101153474A (en) | Dual controlled release fruits and vegetables fresh-keeping paper and manufacturing method thereof | |
| CN101214037A (en) | Sweet potato vermicelli and preparation thereof | |
| CN104151691A (en) | Nano preservative film for preventing edible fungus from deterioration and application thereof | |
| CN102886950A (en) | Anti-mildew modified atmosphere packaging film for fruits and vegetables and preparation method for mildew-proof modified atmosphere packaging film | |
| CN102793121A (en) | Processing method of light-color air-dried green string bean slices and salted products thereof | |
| CN109929174A (en) | A kind of nanometer fresh products and preparation method thereof having antibacterial functions | |
| CN104621241A (en) | Preservative paper for grape and production method thereof | |
| CN109438940A (en) | A kind of preparation method and application of biodegradable fruit-vegetable plastic wrap | |
| CN102187985A (en) | Method for producing onion rings | |
| CN104479204A (en) | Master batch for antimicrobial fruit/vegetable preservation packaging bag and packaging bag prepared from same | |
| JP6212813B2 (en) | Foam net and foam sheet for keeping food freshness | |
| CN106720237A (en) | A kind of fresh keeping pad for fruit | |
| Xu et al. | Extending the shelf life of Victoria table grapes by high permeability and fungicide packaging at room temperature | |
| CN107125307A (en) | A kind of preservation method of tomato | |
| CN101796978A (en) | Storage and fresh-keeping method of fresh Chinese magnoliavine fruit | |
| CN107079977A (en) | A kind of preparation method for exporting fresh-keeping violet cabbage | |
| CN103005698A (en) | Environmental-friendly safety tobacco conservation agent | |
| CN102805130A (en) | High-moisture-content cake corrosion preventing and fresh keeping method | |
| CN104286700B (en) | A kind of steamed stuffed bun normal temperature fresh-keeping method | |
| CN102334542B (en) | Microwave vacuum preservation method for grains | |
| CN103082071A (en) | Production technology for processing pulp type candies from apricot, seedless grapes and red dates | |
| CN107411052A (en) | A kind of production technology of Russulasp. powder | |
| CN102919702A (en) | Blueberry cornflake and production method of same | |
| CN103392786B (en) | Tomato fresh-keeping agent and preparation method of tomato fresh-keeping agent | |
| CN203958961U (en) | A kind of liquidpreservatives packing paper washer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080402 |