CN105620909A - Fresh-keeping packaging film for high-activity fresh yeast - Google Patents
Fresh-keeping packaging film for high-activity fresh yeast Download PDFInfo
- Publication number
- CN105620909A CN105620909A CN201410599435.2A CN201410599435A CN105620909A CN 105620909 A CN105620909 A CN 105620909A CN 201410599435 A CN201410599435 A CN 201410599435A CN 105620909 A CN105620909 A CN 105620909A
- Authority
- CN
- China
- Prior art keywords
- fresh
- layer
- packaging film
- yeast
- fresh yeast
- 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
Landscapes
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
The invention provides a fresh-keeping packaging film for high-activity fresh yeast. The packaging film consists of an outer print layer and an inner heat seal layer, and the packaging film is formed by connecting the outer print layer and the inner heat seal layer through an adhesive. The outer print layer is a polyethylene terephthalate film coated with a polyvinylidene chloride emulsion, and is at a thickness of 10-18 micrometers. The inner heat seal layer is a modified polyethylene film and is at a thickness of 35-45 micrometers. A polyurethane adhesive is used as the adhesive. The fresh-keeping packaging film for high-activity fresh yeast, provided by the invention, can solve the problems that oxygen cannot be blocked from entering and the evaporation of moisture in yeast cannot be prevented, has high blocking performance, realizes the properties of low water and oxygen permeability, greatly ensures fresh yeast storage and has an effect of improving the quality of fresh yeast.
Description
Technical field
The present invention relates to a kind of packing technique field, especially a kind of high activity fresh yeast fresh-keeping packaging film.
Background technology
Yeast is a kind of unicellular fungi microorganism, is a kind of biological bulking agent that human body is useful. Fermentation mechanism is that yeast carries out metabolism in dough, produces to be beneficial to nutrition and the flavor substance of absorption of human body, and produces CO2 gas, makes dough expansion, soft good to eat. Fresh yeast is a kind of not past yeast dry, prilling. The advantages such as compared with dry yeast, it is many that fresh yeast has living cells, and fermenting speed is fast, ferment local-flavor is sufficient, use cost is low.
Fresh yeast cell is contained within the moisture of about 65%, owing to water content is higher, generally adopts plastic sheeting and paraffin paper package, to avoid causing because of moisture evaporation in storage that yeast goes bad. Optimal the depositing of fresh yeast is 0-4 DEG C of cold preservation. Because 0-4 DEG C of yeast is in a dormant state, only metabolism sustains life slowly. Fresh yeast can be deposited 45 days under 0-4 DEG C of condition. At present, commercialization fresh yeast manufacturer adopts inside and outside packaging structure mostly, and inner packing is plastic foil, and outer package is double-deck paraffin paper. But this structure can not completely cut off oxygen in outside air to be entered, and can not stop the volatilization of fresh yeast self moisture. Therefore, for above-mentioned problem, it is necessary to design a kind of fresh yeast high-barrier packaging in storage process, improve fresh yeast quality, extend shelf life.
Summary of the invention
The technical problem to be solved is to provide a kind of high activity fresh yeast fresh-keeping packaging film, can solution must not starvation enter and stop yeast self moisture evaporation problem, there is the barrier property of height, reach the characteristic that the transmitance of moisture and oxygen is low, ensure that fresh yeast stores greatly, reach to improve the effect of fresh yeast quality.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: a kind of high activity fresh yeast fresh-keeping packaging film,
This packaging film is made up of outer layer printing layer and internal layer hot sealing layer, is connected by bonding agent and form packaging film between outer layer printing layer and internal layer hot sealing layer;
Outer layer printing layer is the polyethylene terephthalate film of polyvinylidene emulsions coating, and thickness is 10��18 microns;
Internal layer hot sealing layer is modified polyethylene film, and thickness is 35��45 microns;
Bonding agent is adhesive for polyurethane.
The thickness of outer layer printing layer is preferably 14 microns.
The thickness of internal layer hot sealing layer is preferably 40 microns.
Formation packaging film is connected by adhesive for polyurethane by dry-lamination process or extrusion composite technology between outer layer printing layer and internal layer hot sealing layer.
High activity fresh yeast fresh-keeping packaging film provided by the invention, it is having investigated in packaging film material characteristic and fresh yeast storage environmental demand two on the basis of factor, polyethylene terephthalate (PET) film (i.e. KPET film) adopting the coating of polyvinylidene chloride (PVDC) emulsion prints layer as outer layer, owing to PET film has fragrance protectiveness and the mechanical performance of excellence, water and oxygen are respectively provided with higher barrier by PVDC material, and KPET film is especially suitable for automatic packaging and the preservation of fresh yeast. The heat-sealable material of modified poly ethylene material has good low temperature heat seal, still possesses good pliability at low temperature state material. Therefore, above-mentioned composite membrane is adopted to have good barrier property, can the entrance of isolated environment oxygen as fresh yeast packaging film, it is prevented that the volatilization of fresh yeast self moisture, a small amount of carbon dioxide that inner layer polyethylene material also solubilized absorption simultaneously is produced by the faint metabolism of fresh yeast; Ensure that fresh yeast fresh-keeping function, possess the resistance oxygen water resistance characteristic of height, can be used for mechanization and automatically pack, greatly reducing cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
As it is shown in figure 1, a kind of high activity fresh yeast fresh-keeping packaging film,
This packaging film is made up of outer layer printing layer 1 and internal layer hot sealing layer 2, is connected by bonding agent and form packaging film between outer layer printing layer 1 and internal layer hot sealing layer 2;
The polyethylene terephthalate film that outer layer printing layer 1 is coated with for polyvinylidene emulsions, thickness is 10��18 microns;
Internal layer hot sealing layer 2 is modified polyethylene film, and thickness is 35��45 microns;
Bonding agent is adhesive for polyurethane.
The thickness of outer layer printing layer 1 is preferably 14 microns.
The thickness of internal layer hot sealing layer 2 is preferably 40 microns.
Formation packaging film is connected by adhesive for polyurethane by dry-lamination process or extrusion composite technology between outer layer printing layer 1 and internal layer hot sealing layer 2.
Outer layer printing layer 1 completes colored picture and text printing by intaglio press.
High activity fresh yeast fresh-keeping packaging film provided by the invention, it is having investigated in packaging film material characteristic and fresh yeast storage environmental demand two on the basis of factor, polyethylene terephthalate (PET) film (i.e. KPET film) adopting the coating of polyvinylidene chloride (PVDC) emulsion prints layer 1 as outer layer, owing to PET film has fragrance protectiveness and the mechanical performance of excellence, water and oxygen are respectively provided with higher barrier by PVDC material, and KPET film is especially suitable for automatic packaging and the preservation of fresh yeast. The heat-sealable material of modified poly ethylene material has good low temperature heat seal, still possesses good pliability at low temperature state material. Therefore, above-mentioned composite membrane is adopted to have good barrier property, can the entrance of isolated environment oxygen as fresh yeast packaging film, it is prevented that the volatilization of fresh yeast self moisture, a small amount of carbon dioxide that inner layer polyethylene material also solubilized absorption simultaneously is produced by the faint metabolism of fresh yeast; Ensure that fresh yeast fresh-keeping function, possess the resistance oxygen water resistance characteristic of height, can be used for mechanization and automatically pack, greatly reducing cost.
Claims (4)
1. a high activity fresh yeast fresh-keeping packaging film, it is characterised in that:
This packaging film is printed layer (1) by outer layer and internal layer hot sealing layer (2) forms, and is connected by bonding agent and form packaging film between outer layer printing layer (1) and internal layer hot sealing layer (2);
The polyethylene terephthalate film that outer layer printing layer (1) is coated with for polyvinylidene emulsions, thickness is 10��18 microns;
Internal layer hot sealing layer (2) is modified polyethylene film, and thickness is 35��45 microns;
Bonding agent is adhesive for polyurethane.
2. high activity fresh yeast fresh-keeping packaging film according to claim 1, it is characterised in that: the thickness of outer layer printing layer (1) is 14 microns.
3. high activity fresh yeast fresh-keeping packaging film according to claim 1, it is characterised in that: the thickness of internal layer hot sealing layer (2) is 40 microns.
4. high activity fresh yeast fresh-keeping packaging film according to claim 1, it is characterised in that: connect formation packaging film by adhesive for polyurethane by dry-lamination process or extrusion composite technology between outer layer printing layer (1) and internal layer hot sealing layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410599435.2A CN105620909A (en) | 2014-10-31 | 2014-10-31 | Fresh-keeping packaging film for high-activity fresh yeast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410599435.2A CN105620909A (en) | 2014-10-31 | 2014-10-31 | Fresh-keeping packaging film for high-activity fresh yeast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105620909A true CN105620909A (en) | 2016-06-01 |
Family
ID=56036331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410599435.2A Pending CN105620909A (en) | 2014-10-31 | 2014-10-31 | Fresh-keeping packaging film for high-activity fresh yeast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105620909A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107826460A (en) * | 2017-11-09 | 2018-03-23 | 常德金德新材料科技股份有限公司 | Fruits and vegetables fresh-keeping paper and preparation method thereof |
| CN108515760A (en) * | 2018-05-30 | 2018-09-11 | 浙江时进包装有限公司 | A kind of novel refrigeration Special ice bag film |
| CN111372454A (en) * | 2017-11-21 | 2020-07-03 | 韦斯特高有限公司 | Sealed insecticidal food storage bag and its use and production method |
| CN113427839A (en) * | 2021-08-26 | 2021-09-24 | 金石(天津)科技发展有限公司 | Composite film bag and preparation method thereof |
-
2014
- 2014-10-31 CN CN201410599435.2A patent/CN105620909A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107826460A (en) * | 2017-11-09 | 2018-03-23 | 常德金德新材料科技股份有限公司 | Fruits and vegetables fresh-keeping paper and preparation method thereof |
| CN111372454A (en) * | 2017-11-21 | 2020-07-03 | 韦斯特高有限公司 | Sealed insecticidal food storage bag and its use and production method |
| CN108515760A (en) * | 2018-05-30 | 2018-09-11 | 浙江时进包装有限公司 | A kind of novel refrigeration Special ice bag film |
| CN113427839A (en) * | 2021-08-26 | 2021-09-24 | 金石(天津)科技发展有限公司 | Composite film bag and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105620909A (en) | Fresh-keeping packaging film for high-activity fresh yeast | |
| JP2015519263A (en) | Composite package | |
| CN205416629U (en) | Multilayer is crowded heavily wrapping bag of separation type altogether | |
| CN201105860Y (en) | Novel fresh meat thermal shrinkage keeping-fresh bag film | |
| CN204642513U (en) | For the Double-layer packaging bag of antistaling agent | |
| CN104325743B (en) | A kind of automatic packaging composite film easy to peel of active dry yeast and its preparation method | |
| CN201712910U (en) | Anti-tearing dessicant packaging film | |
| CN202079855U (en) | Composite plastic film with nanometer antibacterial layer | |
| CN105722681A (en) | Laminated film, packaging material, and packaging bag | |
| CN204173338U (en) | High activity yeast cake fresh-keeping packaging film | |
| CN102502110A (en) | Vegetable and fruit plastic packaging box | |
| CN2913229Y (en) | High-obstruct seepage proof plastic-aluminum composite membrane for liquid state dairy product packing | |
| CN202283804U (en) | Anti-fog barrier film | |
| CN203401773U (en) | Easily removable film | |
| CN210285289U (en) | Environment-friendly antibacterial preservative film | |
| CA2789100C (en) | Methods and devices for improved oxygen permeability in microorganism storage container | |
| CN205567278U (en) | Antibiotic plastic sheeting for farm use of degradable | |
| CN105916771A (en) | Use of polymer film for packaging culture medium | |
| BR112014014434B1 (en) | MATERIAL AND PACKAGING FOR YEAST STORAGE | |
| CN202439949U (en) | Sealing-cover membrane applied to paper cups easy to tear | |
| CN204801178U (en) | Multiply crowded film altogether | |
| CN216612350U (en) | Novel food packaging material and cheese packaging material | |
| CN205905492U (en) | Novel food package material | |
| CN215473651U (en) | Novel high-barrier jelly cover film | |
| CN207291151U (en) | A kind of bilayer hot melt adhesive composite membrane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |
|
| WD01 | Invention patent application deemed withdrawn after publication |