CN103304880A - Intelligent breathing fruit and vegetable fresh-keeping film - Google Patents
Intelligent breathing fruit and vegetable fresh-keeping film Download PDFInfo
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- CN103304880A CN103304880A CN2013102549771A CN201310254977A CN103304880A CN 103304880 A CN103304880 A CN 103304880A CN 2013102549771 A CN2013102549771 A CN 2013102549771A CN 201310254977 A CN201310254977 A CN 201310254977A CN 103304880 A CN103304880 A CN 103304880A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3432—Six-membered rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Wrappers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Packages (AREA)
Abstract
The invention discloses an intelligent breathing fruit and vegetable fresh-keeping film which is prepared from the following raw materials in parts by weight: 90-96.5 parts of a low-density polyethylene resin, 0.5-2 parts of a silicon dioxide opening agent, 1-2 parts of hydrochloric acid, 1-2 parts of titanium dioxide, 0.5-2 parts of N-acetamido-4-vinyl pyridine, and 0.5-2 parts of oleamide. The film belongs to the technical field of fresh-keeping, and is mainly used for packaging fruit and vegetable products; the low-density polyethylene is taken as the basic raw materials, and various conditioning components are added for modification, so that the purpose of prolonging the fresh-keeping time of the fruit and vegetable products is achieved. By adding inorganic chemical components, the air permeability of the film is improved, the breathing action is slowed down, and the fresh-keeping time is prolonged; and the intelligent breathing fruit and vegetable fresh-keeping film has the functions of air permeation balance adjustment, ethylene elimination, frosting prevention and antibiosis.
Description
Technical field
The invention belongs to product fresh-keeping package technology field, relate to a kind of intelligent breathing preserving fruit and vegetable utilizing functional membrane specifically.
Background technology
Employed Perserving materials has polyethylene, polyvinyl chloride etc. in the product Freshkeeping Packaging field at present, polyvinyl chloride is owing to the toxicity that has to a certain degree, therefore forbid the packing for prepared food, and low density polyethylene films is just being brought into play increasing effect in product Freshkeeping Packaging field with its distinctive nontoxic property.Products such as fruits and vegetables fresh flower can discharge ethylene gas in the process of maturation, ethylene gas has the effect of accelerating the ripening, and is unfavorable for fresh-keeping to a certain extent.Common food product packing film the accumulation of water droplet in film occur easily in preservation process, also can occur the phenomenon of frosting under cold condition, influences the attractive in appearance and mouthfeel of food, also is unfavorable for the fresh-keeping of food simultaneously.
Common polyethylene preservative film in the prior art, itself do not possess ventilative balance adjustment, ethylene gas removal, frosting resistance and function such as antibiotic, and most of effect or indexs such as tensile strength that all do not meet GB, can not play the effect that prolongs fresh keeping time.There are some polyethylene preservative films with similar functions also to be in the laboratory development at home in the prior art, and only possess one or both effects in ventilative balance adjustment, ethylene gas removal, frosting resistance and the antibacterial, can not take into account simultaneously, and also not reach the product that meets national standard aspect intensity and the toughness.
Summary of the invention
The present invention provides a kind of and possesses ventilative balance adjustment, ethylene gas removal, frosting resistance and antibacterial simultaneously, and can prolong the intelligent breathing preserving fruit and vegetable utilizing functional membrane of product fresh keeping time in order to overcome the deficiency that prior art exists.
The present invention is achieved by the following technical solutions: a kind of intelligent breathing preserving fruit and vegetable utilizing functional membrane, its raw material by following weight parts is made: 90～96.5 parts of ldpe resins, 0.5～2 part of silicon-dioxide opening agent, 1～2 part of hydrochloric acid, 1～2 part of titanium dioxide, 0.5～2 part of N-acetamido-4-vinylpridine, 0.5～2 part of amine hydroxybenzene.
As preferred implementation of the present invention, described intelligent breathing preserving fruit and vegetable utilizing functional membrane is made by the raw material of following weight parts: 93～96 parts of ldpe resins, 0.8～1.5 part of silicon-dioxide opening agent, 1.2～1.8 parts of hydrochloric acid, 1.4～1.9 parts of titanium dioxide, 0.7～1.5 part of N-acetamido-4-vinylpridine, 0.9～1.6 part of amine hydroxybenzene.
As preferred forms of the present invention, described intelligent breathing preserving fruit and vegetable utilizing functional membrane is made by the raw material of following weight parts: 93.3 parts of ldpe resins, 1.3 parts of silicon-dioxide opening agent, 1.5 parts of hydrochloric acid, 1.7 parts of titanium dioxide, 1 part of N-acetamido-4-vinylpridine, 1.2 parts of amine hydroxybenzenes
A kind of method of production of intelligent breathing preserving fruit and vegetable utilizing functional membrane specifically comprises following step: raw material allotment, material loading, extrude, inflation, cooling, printing, traction-folder are flat, volume film, cutting and packing.
Raw material allotment: be mainly added ingredients in the Low Density Polyethylene raw material, major ingredient basal component is Low Density Polyethylene, and auxiliary material basal component comprises that technology is with acid, anti-atomizing and frosting auxiliary agent and antibacterial resin; Wherein technology acid is hydrochloric acid, and anti-atomizing and frosting auxiliary agent are titanium dioxide, and antibacterial resin is N～acetamido～4～vinyl pyridine, and the weight part proportioning of main ingredient is 95:5, and wherein adjunct ingredient can be adjusted according to different effects.
Material loading, extrude and inflation: mainly be by multi-layer co-extruded principle, multilayer film is combined with each other, producing different film effect based on different prescriptions and variation of temperature, at first is that heating is extruded then to the material grain, and the cooling back that stretches flattens last rolling moulding by the folder rod through vane.
Follow-up other step is identical with general polyethylene film production technique, and the production technique temperature of whole process of production is 160～170 ℃ in the method for production of intelligent breathing preserving fruit and vegetable utilizing functional membrane of the present invention.
The attainable basic fundamental parameter of this product is as follows: oxygen transmission rate: 5000～8000 milliliters/square metre (24 hours); Carbonic acid gas transfer rate: 20000～25000 milliliters/square metre (24 hours); Vapor transmission rate: 24～28 grams/square metre; Ethylene gas is removed speed: 3000～4000 milliliters/square metre (24 hours).
Principle of work of the present invention is based on the gas regulating function of Low Density Polyethylene and the ethylene absorption effect of adding each composition, defrosting effect and antibacterial effect, be to process under 160～170 ℃ the condition in the production technique temperature according to separately weight part with various compositions, the main generation principle of permeability, be the temperature control difference of various raw materials and the difference of screw rod unique design and raw material proportion, produce different spaces and cause and produce smoke condition that very trickle cold and hot variation produces between the film and can enough make the waterproof and function that can breathe freely of film thereby it is changed by three layers of extrusion speed, making air can change the discharging carbonic acid gas has special-effect to removal ethylene gas maintenance humidity.The condition of chemical element reaction is: make it draw the process of the extremely trickle airiness of formation in the process of stretching and can make film can produce the gas purging effect because the variation that temperature produces changes its molecular structure and produces the raw material of having used modification.
The invention has the beneficial effects as follows: the invention belongs to the preservation technique field, main application is the packing that intelligent breathing preserving fruit and vegetable utilizing functional membrane is used for product, improves fresh-keeping effect.The present invention adds various adjusting compositions and carries out modification based on low density polyethylene films, reaches the effect of the fresh keeping time that prolongs product.The present invention is by adding a certain amount of ethylene absorption material in the production of low density polyethylene films, reach the effect of removing ethylene gas, pass through the gas permeability of this preservative film simultaneously, make the carbon dioxide enrichment that produces in the product respiration, occupy the change point of ethylene gas reaction, play the effect that ethene suppressing gas produces.The respiration of product can consume oxygen and discharge carbonic acid gas, the principle that the present invention is based on the gas regulation packing is regulated the gas in the film by the penetrating quality of preservative film, by adding the inorganic chemistry composition, improve the air permeable effect of film, to reach the balance of oxygen and carbonic acid gas inside and outside a kind of film, namely gas concentration lwevel is higher than the carbon dioxide in air background concentration in the film, and oxygen concentration is lower than airborne oxygen background concentration in the film, slow down respiration, prolong fresh keeping time.
The present invention can possess gas regulating function simultaneously, absorb ethylene gas function, frosting resistance function and antibacterial: 1, the realization of gas regulating function is by adding inorganic component in Low Density Polyethylene, increasing ventilation property and the selectivity of film; 2, the realization of absorption ethylene gas function is the composition that can absorb ethylene gas by interpolation in Low Density Polyethylene, and the many hollow structures in the fresh-keeping function film of the present invention also have the function of ethylene adsorption; 3, the realization of frosting resistance function is by adding the frosting resistance composition in Low Density Polyethylene, avoiding the generation of frosting phenomenon; 4, the realization of antibacterial is by adding antimicrobial component in Low Density Polyethylene, playing the antibacterial effect in Freshkeeping Packaging.Intelligent breathing preserving fruit and vegetable utilizing function film strength of the present invention and toughness meet GBT 4456-2008 (packaging polyethylene blown film) national standard.
Description of drawings
Fig. 1 is the technological process of production figure of intelligent breathing preserving fruit and vegetable utilizing functional membrane of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
Embodiment 1: a kind of intelligent breathing preserving fruit and vegetable utilizing functional membrane, its raw material by following weight parts is made: 93.5 parts of ldpe resins, 0.5 part of silicon-dioxide opening agent, 1 part of hydrochloric acid, 1 part of titanium dioxide, 2 parts of N-acetamido-4-vinylpridines, 2 parts of amine hydroxybenzenes.
Embodiment 2: a kind of intelligent breathing preserving fruit and vegetable utilizing functional membrane, its raw material by following weight parts is made: 95 parts of ldpe resins, 1 part of silicon-dioxide opening agent, 1 part of hydrochloric acid, 1 part of titanium dioxide, 1 part of N-acetamido-4-vinylpridine, 1 part of amine hydroxybenzene.
Embodiment 3: a kind of intelligent breathing preserving fruit and vegetable utilizing functional membrane, its raw material by following weight parts is made: 93 parts of ldpe resins, 2 parts of silicon-dioxide opening agent, 2 parts of hydrochloric acid, 2 parts of titanium dioxide, 0.5 part of N-acetamido-4-vinylpridine, 0.5 part of amine hydroxybenzene.
As shown in Figure 1, a kind of method of production of intelligent breathing preserving fruit and vegetable utilizing functional membrane specifically comprises following step: raw material allotment, material loading, extrude, inflation, cooling, printing, traction-folder are flat, volume film, cutting and packing.Raw material allotment: be mainly added ingredients in the Low Density Polyethylene raw material, major ingredient basal component is Low Density Polyethylene, and auxiliary material basal component comprises that technology is with acid, anti-atomizing and frosting auxiliary agent and antibacterial resin; Wherein technology acid is hydrochloric acid, and anti-atomizing and frosting auxiliary agent are titanium dioxide, and antibacterial resin is N～acetamido～4～vinyl pyridine, and the weight part proportioning of main ingredient is 95:5, and wherein adjunct ingredient can be adjusted according to different effects.Material loading, extrude and inflation: mainly be by multi-layer co-extruded principle, multilayer film is combined with each other, producing different film effect based on different prescriptions and variation of temperature, at first is that heating is extruded then to the material grain, and the cooling back that stretches flattens last rolling moulding by the folder rod through vane.Follow-up other step is identical with general polyethylene film production technique.
Should be noted that at last; above content is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; the simple modification that those of ordinary skill in the art carries out technical scheme of the present invention or be equal to replacement does not all break away from essence and the scope of technical solution of the present invention.
Claims (3)
1. intelligent breathing preserving fruit and vegetable utilizing functional membrane, it is characterized in that: described intelligent breathing preserving fruit and vegetable utilizing functional membrane is made by the raw material of following weight parts: 90～96.5 parts of ldpe resins, 0.5～2 part of silicon-dioxide opening agent, 1～2 part of hydrochloric acid, 1～2 part of titanium dioxide, 0.5～2 part of N-acetamido-4-vinylpridine, 0.5～2 part of amine hydroxybenzene.
2. intelligent breathing preserving fruit and vegetable utilizing functional membrane according to claim 1, it is characterized in that: described intelligent breathing preserving fruit and vegetable utilizing functional membrane is made by the raw material of following weight parts: 93～96 parts of ldpe resins, 0.8～1.5 part of silicon-dioxide opening agent, 1.2～1.8 parts of hydrochloric acid, 1.4～1.9 parts of titanium dioxide, 0.7～1.5 part of N-acetamido-4-vinylpridine, 0.9～1.6 part of amine hydroxybenzene.
3. intelligent breathing preserving fruit and vegetable utilizing functional membrane according to claim 2, it is characterized in that: described intelligent breathing preserving fruit and vegetable utilizing functional membrane is made by the raw material of following weight parts: 93.3 parts of ldpe resins, 1.3 parts of silicon-dioxide opening agent, 1.5 parts of hydrochloric acid, 1.7 parts of titanium dioxide, 1 part of N-acetamido-4-vinylpridine, 1.2 parts of amine hydroxybenzenes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102549771A CN103304880A (en) | 2013-06-25 | 2013-06-25 | Intelligent breathing fruit and vegetable fresh-keeping film |
| CN201410193726.1A CN103965539B (en) | 2013-06-25 | 2014-05-09 | A kind of intelligent breathing preserving fruit and vegetable utilizing functional membrane and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102549771A CN103304880A (en) | 2013-06-25 | 2013-06-25 | Intelligent breathing fruit and vegetable fresh-keeping film |
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| Publication Number | Publication Date |
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| CN103304880A true CN103304880A (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102549771A Pending CN103304880A (en) | 2013-06-25 | 2013-06-25 | Intelligent breathing fruit and vegetable fresh-keeping film |
| CN201410193726.1A Active CN103965539B (en) | 2013-06-25 | 2014-05-09 | A kind of intelligent breathing preserving fruit and vegetable utilizing functional membrane and preparation method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410193726.1A Active CN103965539B (en) | 2013-06-25 | 2014-05-09 | A kind of intelligent breathing preserving fruit and vegetable utilizing functional membrane and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106317540A (en) * | 2015-06-23 | 2017-01-11 | 大连瑞贤达塑胶有限公司 | Method for detecting penetration performance of fruit package nano preservative film |
| CN109354704A (en) * | 2018-09-10 | 2019-02-19 | 龙泽慧丰农业科技有限公司 | A kind of preservative film |
| CN110411117A (en) * | 2019-08-30 | 2019-11-05 | 长虹美菱股份有限公司 | A kind of freshness retaining device for refrigerator based on gas regulation |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3067328B2 (en) * | 1991-10-22 | 2000-07-17 | 三菱化学株式会社 | Food packaging sheet or film |
| CN1262592C (en) * | 2002-07-08 | 2006-07-05 | 北京崇高纳米科技有限公司 | Fruit and vegetable fresh-keeping plastic film and method for making the same |
| KR20100049723A (en) * | 2008-11-04 | 2010-05-13 | 이규주 | Functional resin (PE, PP) film composed of functional pores |
| CN102030131A (en) * | 2010-11-10 | 2011-04-27 | 国家农产品保鲜工程技术研究中心（天津） | Fresh-keeping package for tropical fruits in south and application of fresh-keeping package in fruit and vegetable logistic fresh keeping |
-
2013
- 2013-06-25 CN CN2013102549771A patent/CN103304880A/en active Pending
-
2014
- 2014-05-09 CN CN201410193726.1A patent/CN103965539B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106317540A (en) * | 2015-06-23 | 2017-01-11 | 大连瑞贤达塑胶有限公司 | Method for detecting penetration performance of fruit package nano preservative film |
| CN109354704A (en) * | 2018-09-10 | 2019-02-19 | 龙泽慧丰农业科技有限公司 | A kind of preservative film |
| CN110411117A (en) * | 2019-08-30 | 2019-11-05 | 长虹美菱股份有限公司 | A kind of freshness retaining device for refrigerator based on gas regulation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103965539B (en) | 2016-04-13 |
| CN103965539A (en) | 2014-08-06 |
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Application publication date: 20130918 |