CN104441868A - Active plastic breathable film for packaging - Google Patents
Active plastic breathable film for packaging Download PDFInfo
- Publication number
- CN104441868A CN104441868A CN201410684564.1A CN201410684564A CN104441868A CN 104441868 A CN104441868 A CN 104441868A CN 201410684564 A CN201410684564 A CN 201410684564A CN 104441868 A CN104441868 A CN 104441868A
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- CN
- China
- Prior art keywords
- density polyethylene
- low density
- adopts
- linear low
- layer
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
Abstract
The invention discloses an active plastic breathable film for packaging. The active plastic breathable film is produced by a three-layer co-extrusion film blowing machine and comprises an outer layer, a middle layer and an inner layer which are combined, wherein the inner layer is formed by mixing metallocene low density polyethylene as a substrate with linear low density polyethylene and an antiblocking agent; the middle layer is formed by mixing linear low density polyethylene, low density polyethylene and a type A nanometer active molecular sieve; the outer layer is formed by mixing linear low density polyethylene with low density polyethylene; the extrusion speed ratio of the inner layer to the middle layer to the outer layer is 30% to 40% to 30%. The active plastic breathable film is good in freshness preservation performance, allows generated carbon dioxide and oxygen to penetrate through, and keeps the sleep state of a putrescible product; the refreshing time of the product is prolonged; ethylene capable of promoting maturity of fruits and vegetables can be absorbed and the periphery of the putrescible product is kept wet; meanwhile, as the film contains a trace amount of controlled-released fungicide, the fungal growth can be prevented and the refreshing time of the packaged fruits and vegetables can be prolonged by more than two times.
Description
Technical field
The present invention relates to a kind of packing film, particularly relate to a kind of active plastics package breathable films.
Background technology
There is gas permeability in antistaling film in the market, poisture-penetrability is poor, and fresh-keeping effect is poor, and shelf lives is shorter, the problems such as bactericidal effect is undesirable, and can only certain factors of inhibitory effect fruits and vegetables simply, and the impact of other factors on preserving fruit and vegetable utilizing can not be controlled, fresh-keeping function is more single.Along with consumer improves day by day to the requirement of fruit-vegetable quality and freshness, simultaneously fruits and vegetables long distance transportation and sell also increasing across season, and fruits and vegetables produce the susceptibility-to-corrosion that there are very strong seasonality and regionality and fruits and vegetables itself, add diversity and the complexity of fruits and vegetables circulation environment after plucking, the novel thin film that a kind of gas permeability, poisture-penetrability are good, fresh-keeping effect is better in the urgent need to having, fresh keeping time is longer.
Summary of the invention
The object of the invention is to solve Problems existing in current techniques, a kind of active plastics package breathable films is provided.
For achieving the above object, the technology used in the present invention means are: a kind of active plastics package breathable films, three-layer co-extruded inflation film manufacturing machine is adopted to produce, have the skin, middle level and the internal layer trilaminate material that are combined with each other to combine, wherein internal layer adopts metallocene low density polyethylene (LDPE) to be that substrate and linear low density polyethylene (LLDPE), opening agent mix according to 5:4.5:0.5 ratio; Middle level adopts linear low density polyethylene (LLDPE), low density polyethylene (LDPE), A type nano active molecular sieve to mix according to 4:5.5:0.5 ratio; Outer linear low density polyethylene (LLDPE), the low density polyethylene (LDPE) of adopting mixes, in extruded velocity according to 4:6 ratio: in: outward: 30%:40%:30%.
Further, described metallocene low density polyethylene (LDPE) adopts 3505CH resin, and linear low density polyethylene (LLDPE) adopts 1002YB resin, and low density polyethylene (LDPE) adopts 2420D resin.
Further, described A type nano active molecular sieve adopts 5A type molecular sieve.
Beneficial effect of the present invention is: A type nano active molecular screen material is added in middle level, improve the permeability of film, thus promote ventilative, the water vapour permeability of film, also on CO, O of affecting fruits and vegetables series products rotten, there is selective penetrated property simultaneously, CO, O in film can be allowed to keep a kind of concentration of balance, packaging fruits and vegetables series products can be suppressed to carry out aerobic respiration thus rotting of causing, the fruits and vegetables series products packed can be suppressed again to carry out anaerobic respiration thus cause rotting rotten, improve fresh-keeping effect, extend shelf lives; Internal layer additive opening agent, effectively prevents film blocking, and the product made has good opening performance, improves the efficiency of hand-filling fruits and vegetables; Internal layer adds metallocene 3505CH resin, promotes heat seal strength and the antipollution heat sealability of film, solves film and seals bad problem by when dust, liquid contamination; The resin that film uses in production technology is all transparency materials preferably, and the finished product the produced transparency better, meets the high transparency requirement of client to product.
Detailed description of the invention
A kind of active plastics package breathable films, form by inflation film manufacturing machine is three-layer co-extruded, there is being made up of outer, middle level and internal layer three layers of being combined with each other, wherein internal layer adopts metallocene low density polyethylene (LDPE) to be that substrate and linear low density polyethylene (LLDPE), opening agent mix, and addition is metallocene low density polyethylene (LDPE) 125kg, linear low density polyethylene (LLDPE) 112.5kg, opening agent 12.5kg; Described middle level adopts the mixing of linear low density polyethylene (LLDPE), low density polyethylene (LDPE), A type nano active molecular sieve, and its addition is linear low density polyethylene (LLDPE) 100kg, low density polyethylene (LDPE) 137.5kg, A type nano active molecular sieve 12.5kg; Described skin adopts linear low density polyethylene (LLDPE), low density polyethylene (LDPE), and its addition is linear low density polyethylene (LLDPE) 100kg, low density polyethylene (LDPE) 150kg; In extruded velocity: in: outer speed is: 30%:40%:30%.。
Described, metallocene low density polyethylene (LDPE) adopts the 3505CH resin of Exxon Mobil, and linear low density polyethylene (LLDPE) adopts the 1002YB resin of american exxon, and low density polyethylene (LDPE) adopts the 2420D resin of BASF-YPC grand celebration;
Described, A type nano active molecular sieve adopts the 5A type molecular sieve of matter former (Shanghai) molecular sieve Co., Ltd, and 5A type molecular sieve is a kind of alkali metal aluminosilicate, has gas selective penetrated property function.
A type nano active molecular screen material is added in middle level, molecular screen material has special aperture structure and gas selective penetrated property, improve the permeability of film, thus promote the ventilative of film, water vapour permeability, simultaneously also on affecting the rotten CO of fruits and vegetables series products, O has good selective penetrated property, can allow CO in film, O keeps a kind of concentration of balance, packaging fruits and vegetables series products can be suppressed to carry out aerobic respiration thus rotting of causing, the fruits and vegetables series products packed can be suppressed again to carry out anaerobic respiration thus cause rotting rotten, improve fresh-keeping effect, extend shelf lives, internal layer additive opening agent, effectively prevents film blocking, and the product made has good opening performance, improves the efficiency of hand-filling fruits and vegetables, internal layer adds metallocene 3505CH resin, promotes heat seal strength and the antipollution heat sealability of film, solves film and seals bad problem by when dust, liquid contamination, the resin that film uses in production technology is all transparency materials preferably, and the finished product the produced transparency better, meets the high transparency requirement of client to product.
The active plastics package breathable films that the present invention produces is the packaging ventilated membrane that a kind of fresh keeping property is good.It can allow produce carbon dioxide and oxygen through, make perishable product keep sleep state.Extend the freshness date of product.In addition, this film organic chemistry agent dipping, can absorb the ripe favorable ethene of fruits and vegetables, and makes surrounding's maintenance of perishable products moist; Meanwhile, because of the mildewcide containing micro-slow releasing in film, the growth of mould can also be stoped.So the freshness date of packaged fruits and vegetables can extend more than 2 times.
Application embodiment is just for illustration of technical characteristic disclosed in the present application, and those skilled in the art, by simply replacing the change carried out, still belong to the scope that the application protects.
Claims (3)
1. an active plastics package breathable films, it is characterized in that: adopt three-layer co-extruded inflation film manufacturing machine to produce, have the skin, middle level and the internal layer trilaminate material that are combined with each other to combine, wherein internal layer adopts metallocene low density polyethylene (LDPE) to be that substrate and linear low density polyethylene (LLDPE), opening agent mix according to 5:4.5:0.5 ratio; Middle level adopts linear low density polyethylene (LLDPE), low density polyethylene (LDPE), A type nano active molecular sieve to mix according to 4:5.5:0.5 ratio; Outer linear low density polyethylene (LLDPE), the low density polyethylene (LDPE) of adopting mixes, in extruded velocity according to 4:6 ratio: in: outward: 30%:40%:30%.
2. active plastics package breathable films according to claim 1, is characterized in that: described metallocene low density polyethylene (LDPE) adopts 3505CH resin, and linear low density polyethylene (LLDPE) adopts 1002YB resin, and low density polyethylene (LDPE) adopts 2420D resin.
3. active plastics package breathable films according to claim 1, is characterized in that: described A type nano active molecular sieve adopts 5A type molecular sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410684564.1A CN104441868A (en) | 2014-11-25 | 2014-11-25 | Active plastic breathable film for packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410684564.1A CN104441868A (en) | 2014-11-25 | 2014-11-25 | Active plastic breathable film for packaging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104441868A true CN104441868A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410684564.1A Pending CN104441868A (en) | 2014-11-25 | 2014-11-25 | Active plastic breathable film for packaging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104441868A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108995995A (en) * | 2018-07-07 | 2018-12-14 | 青岛金利塑料有限公司 | A kind of high-air-tightness hydraulic pressure resistant polybag and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6492010B1 (en) * | 1999-11-20 | 2002-12-10 | Intertape, Inc. | Premium stretch multilayer film products |
| CN1922009A (en) * | 2004-02-19 | 2007-02-28 | 东洋制罐株式会社 | Plastic multilayer structure |
| CN101258872A (en) * | 2008-04-17 | 2008-09-10 | 福建师范大学 | Method for preparing ventilating antimicrobial fresh-keeping thin film with three-layer structure |
| CN101480861A (en) * | 2009-01-23 | 2009-07-15 | 石狮市新光塑料包装有限公司 | Novel PE film |
| CN201640099U (en) * | 2009-10-27 | 2010-11-24 | 天津市天塑科技集团有限公司第二塑料制品厂 | Metallocene anti-pesticide flower membrane |
| CN102179985A (en) * | 2011-03-18 | 2011-09-14 | 黄山永新股份有限公司 | Polyethylene (PE) film and preparation method thereof |
-
2014
- 2014-11-25 CN CN201410684564.1A patent/CN104441868A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6492010B1 (en) * | 1999-11-20 | 2002-12-10 | Intertape, Inc. | Premium stretch multilayer film products |
| CN1922009A (en) * | 2004-02-19 | 2007-02-28 | 东洋制罐株式会社 | Plastic multilayer structure |
| CN101258872A (en) * | 2008-04-17 | 2008-09-10 | 福建师范大学 | Method for preparing ventilating antimicrobial fresh-keeping thin film with three-layer structure |
| CN101480861A (en) * | 2009-01-23 | 2009-07-15 | 石狮市新光塑料包装有限公司 | Novel PE film |
| CN201640099U (en) * | 2009-10-27 | 2010-11-24 | 天津市天塑科技集团有限公司第二塑料制品厂 | Metallocene anti-pesticide flower membrane |
| CN102179985A (en) * | 2011-03-18 | 2011-09-14 | 黄山永新股份有限公司 | Polyethylene (PE) film and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 郭玉花灯等: "草莓的纳米活性分子筛保鲜包装研究", 《食品科学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108995995A (en) * | 2018-07-07 | 2018-12-14 | 青岛金利塑料有限公司 | A kind of high-air-tightness hydraulic pressure resistant polybag and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |