CN109502182A - A kind of food fresh keeping membrane - Google Patents
A kind of food fresh keeping membrane Download PDFInfo
- Publication number
- CN109502182A CN109502182A CN201811202080.3A CN201811202080A CN109502182A CN 109502182 A CN109502182 A CN 109502182A CN 201811202080 A CN201811202080 A CN 201811202080A CN 109502182 A CN109502182 A CN 109502182A
- Authority
- CN
- China
- Prior art keywords
- fresh keeping
- silica gel
- food fresh
- layer
- keeping membrane
- 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
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Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Packages (AREA)
Abstract
The invention discloses a kind of food fresh keeping membrane, which has layer of silica gel, constitutes preservative film compared to by polyethylene or polyvinyl chloride or polyvinylidene chloride, which can reuse, being capable of more safety and environmental protection；Further, the layer of silica gel is made by mixing by xSiO2yH2O and mill base, wherein mill base includes silicone oil and colorant, colorant includes photochromic material and/or temperature-sensing color-changing material, which can be according to the height of light intensity and/or temperature around food come display color.
Description
Technical field
The present invention relates to plastic film field more particularly to a kind of food fresh keeping membranes.
Background technique
The most preservative films and common polybag sold in the market be all using ethylene masterbatch as raw material, according to
The variety classes of ethylene masterbatch, preservative film can be divided into three categories.The first is polyethylene, and abbreviation PE is mainly used for the packet of food
Dress is the common preservative film of water fruits and vegetables；It is for second polyvinyl chloride, abbreviation PVC, this material can be used for food
Packaging, but it has a certain impact to the safety of human body；The third is polyvinylidene chloride, and abbreviation PVDC is mainly used for one
The packaging of the products such as a little prepared food such as hams.
For a long time, it is believed that the preservative film of both materials of PE and PVDC is comparatively safe to human body, but
There is PE in the carcinogenic substance inventory that international cancer research institution, the World Health Organization in 2017 announces, and PVDC preservative film
It is found containing plasticiser DEHA, the high fat content food of packaging can be penetrated under this plasticiser room temperature from preservative film
In, cause female hormone secretion to increase, 3male hormone secretion is reduced, and causes larger harm to human endocrine system.
In addition, extremely difficult recycling is even unable to recycling and reusing to these three types of thermoplastic preservative films after use, in addition this
Class plastics are difficult to degrade, and are easy to cause to pollute for a long time to environment for human survival, are not environmentally for the angle of environmental protection.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of reusable, safety and environmental protection food fresh keepings
Film.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of food fresh keeping membrane, the food fresh keeping membrane have a layer of silica gel.
In one embodiment of the invention, the layer of silica gel is made by xSiO2yH2O.
In another embodiment of the invention, the layer of silica gel is made by mixing by xSiO2yH2O and mill base.
Wherein, the mill base includes silicone oil and colorant, and the colorant includes that photochromic material and/or temperature-sensitive become
Color material.
Preferably, mass ratio of the colorant in mill base is 3%~5%.
Preferably, the layer of silica gel with a thickness of 0.05~1.5mm.
The beneficial effects of the present invention are: food fresh keeping membrane of the invention has layer of silica gel, compared to by polyethylene or polychlorostyrene
Ethylene or polyvinylidene chloride constitute preservative film, which can reuse, being capable of more safety and environmental protection；Into
One step, the layer of silica gel are made by mixing by xSiO2yH2O and mill base, wherein and mill base includes silicone oil and colorant,
Toner includes photochromic material and/or temperature-sensing color-changing material, which can be according to the light intensity around food
And/or the height of temperature carrys out display color.
Specific embodiment
The present invention will be further described in detail with reference to the specific embodiments, however, it is desirable to which explanation, right
The explanation of following implementation is schematically, not constitute to specific restriction of the invention.
A kind of food fresh keeping membrane of the invention, the food fresh keeping membrane have a layer of silica gel, in the present embodiment, preservative film
It is only made of layer of silica gel, constitutes preservative film compared to by polyethylene or polyvinyl chloride or polyvinylidene chloride, the food fresh keeping
Film can reuse, being capable of more safety and environmental protection.
In one embodiment of the invention, the layer of silica gel is made by xSiO2yH2O.
In another embodiment of the invention, the layer of silica gel is made by mixing by xSiO2yH2O and mill base.Its
In, the mill base includes silicone oil and colorant, and the colorant includes photochromic material and/or temperature-sensing color-changing material.The food
Product preservative film can be according to the height of light intensity and/or temperature around food come display color.Above-mentioned photochromic material
Material molecular structure under the light action of certain wavelength and intensity can change, and be to the absorption peak of light so as to cause it
The corresponding change of color.Herein, temperature-sensing color-changing material is heat discoloration powder, and heat discoloration powder is the reversible sense of microencapsulation
Warm electrochromic substance can be mixed into mill base when making layer of silica gel and be integrally formed with silica gel, and heat discoloration powder can be according to temperature
Change and convert different colors, to inform the temperature height near user's food.
Preferably, mass ratio of the colorant in mill base is 3%~5%, and the mass ratio of colorant can basis
Specific use needs to adjust within the above range.
Preferably, the layer of silica gel with a thickness of 0.05~1.5mm, to meet the service condition of different-thickness needs.
Preferable implementation of the invention is illustrated above, certainly, the present invention can also use and above-mentioned implementation
The different form of mode, those skilled in the art's made equivalent change on the premise of without prejudice to spirit of the invention
It changes or changes accordingly, all should belong in protection scope of the present invention.
Claims (6)
1. a kind of food fresh keeping membrane, it is characterised in that: the food fresh keeping membrane has a layer of silica gel.
2. a kind of food fresh keeping membrane as described in claim 1, it is characterised in that:
The layer of silica gel is made by xSiO2yH2O.
3. a kind of food fresh keeping membrane as described in claim 1, it is characterised in that:
The layer of silica gel is made by mixing by xSiO2yH2O and mill base.
4. a kind of food fresh keeping membrane as claimed in claim 3, it is characterised in that:
The mill base includes silicone oil and colorant, and the colorant includes photochromic material and/or temperature-sensing color-changing material.
5. a kind of food fresh keeping membrane as claimed in claim 3, it is characterised in that:
Mass ratio of the colorant in mill base is 3%~5%.
6. a kind of food fresh keeping membrane as described in claim 1-5 any claim, it is characterised in that:
The layer of silica gel with a thickness of 0.05~1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811202080.3A CN109502182A (en) | 2018-10-16 | 2018-10-16 | A kind of food fresh keeping membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811202080.3A CN109502182A (en) | 2018-10-16 | 2018-10-16 | A kind of food fresh keeping membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109502182A true CN109502182A (en) | 2019-03-22 |
Family
ID=65746663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811202080.3A Pending CN109502182A (en) | 2018-10-16 | 2018-10-16 | A kind of food fresh keeping membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109502182A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101600630A (en) * | 2007-02-06 | 2009-12-09 | 巴塞尔聚烯烃股份有限公司 | Be used to pack the flexibility and/or the rigid photochromic product of photosensitive product |
| CN202226234U (en) * | 2011-07-20 | 2012-05-23 | 刘展标 | Silica gel preservative film |
| CN103881212A (en) * | 2014-03-25 | 2014-06-25 | 上海海洋大学 | Food preservation film and preparation method thereof |
| CN104448525A (en) * | 2014-12-03 | 2015-03-25 | 宿州市紫金塑业有限公司 | Antimicrobial plastic food packaging film |
| CN106867081A (en) * | 2017-03-30 | 2017-06-20 | 昆山金盟塑料薄膜有限公司 | A kind of liquid packaging film and preparation method thereof |
-
2018
- 2018-10-16 CN CN201811202080.3A patent/CN109502182A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101600630A (en) * | 2007-02-06 | 2009-12-09 | 巴塞尔聚烯烃股份有限公司 | Be used to pack the flexibility and/or the rigid photochromic product of photosensitive product |
| CN202226234U (en) * | 2011-07-20 | 2012-05-23 | 刘展标 | Silica gel preservative film |
| CN103881212A (en) * | 2014-03-25 | 2014-06-25 | 上海海洋大学 | Food preservation film and preparation method thereof |
| CN104448525A (en) * | 2014-12-03 | 2015-03-25 | 宿州市紫金塑业有限公司 | Antimicrobial plastic food packaging film |
| CN106867081A (en) * | 2017-03-30 | 2017-06-20 | 昆山金盟塑料薄膜有限公司 | A kind of liquid packaging film and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20190322 |