CN102613277B - Nano coating preservation packaging material special for traditional red egg, preparation method and coating method - Google Patents
Nano coating preservation packaging material special for traditional red egg, preparation method and coating method Download PDFInfo
- Publication number
- CN102613277B CN102613277B CN201210125249.6A CN201210125249A CN102613277B CN 102613277 B CN102613277 B CN 102613277B CN 201210125249 A CN201210125249 A CN 201210125249A CN 102613277 B CN102613277 B CN 102613277B
- Authority
- CN
- China
- Prior art keywords
- packaging material
- coating
- egg
- nano
- nano coating
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a nano coating preservation packaging material special for traditional red eggs, a preparation method and a coating method thereof, belonging to the field of egg product preservation packaging. The nano coating preservation packaging material is formed through reactiing and compounding of the following components: 40-70 g/L of polyvinyl alcohol, 3-5 g/L of glutaraldehyde, 1.0-1.5 g/L of acid red, 0.1-0.4 g/L of nano TiO2 and 0.2-0.6 g/L of nano SiO2, in an aqueous solution. The preparation method for the nano coating preservation packaging material comprises the following steps of: adding the nano TiO2 and the SiO2 into a PVA (polyvinyl alcohol) aqueous solution to mix ultrasonically, and adding the glutaraldehyde to carry out constant-temperature cross-linking reaction; and adding the acid red to stir at a constant temperature, thereby obtaining the composite nano coating material. The composite nano coating preservation packaging material is thermally coated on the surfaces of boiled eggs, so that the traditional red eggs are obtained after coating formation. According to the nano coating preservation packaging material, the preparation method and the coating method, disclosed by the invention, the traditional production technology of the red eggs can be simplified, the use amount of the packaging material is obviously reduced, mechanized operations are realized, and the safety quality of the red egg products can be improved.
Description
Technical field
The invention belongs to food fresh keeping packaging field, relate to a kind of egg products coating-film fresh-keeping packaging material and its preparation method and application, especially relate to a kind of conventional red egg special-purpose nanometer coating-film fresh-keeping packaging material and preparation and coating method.
Background technology
China's birds, beasts and eggs aboundresources, ，Shi numerous in variety world egg production and consumption big country.The red egg with traditional celebrating symbolic meaning is with a long history, is usually used in the various celebrating occasions such as marriage, raw son.Conventional red egg is smeared orchil to eggshell surface and is prepared from by manual, and production efficiency is low, and the orchil adopting exists certain potential safety hazard, affect eating and commodity value of product.And commercially available red red eggs generally adopt red plastic film vacuum packaging at present, this method generally needs 3 high-temperature process, complex manufacturing, inefficiency, labor cost and packing cost are higher, increase white pollution simultaneously, do not meet the national industry developing direction of " efficient green, energy-saving low-carbon ", and 3 high-temperature process production technologies that adopt have a strong impact on the flavour nutrient quality of product.
Adopting new material, new technology, new technology, develop new product, realize mechanized operation and enhance productivity, reduce production costs, ensure food safety, reduce packaging waste, is traditional food industrial development direction; The coating fresh-keeping technology of birds, beasts and eggs product has started business application.Therefore, develop a kind of environmentally friendly coating-film fresh-keeping packaging material and be exclusively used in conventional red egg, can simplify traditional manufacturing technique, reduce packing timber amount, Shelf-life is also increased economic efficiency, and meets the national industry development strategy of energy-saving and emission-reduction, low charcoal green.
Summary of the invention
The object of the invention is to provide a kind of environmentally friendly composite Nano coating-film fresh-keeping packaging material and preparation and coating method that is exclusively used in conventional red egg; to solve current conventional red red eggs, adopt the problems such as red plastic film vacuum packaging complex manufacturing, inefficiency, packing cost are higher; conventional red egg is being kept on traditional characteristics basis, realize the scale automated production mode of efficient, energy-saving and emission-reduction, green low charcoal.
The technical scheme that solves the employing of the technology of the present invention problem is:
Conventional red egg composite Nano coating-film fresh-keeping packaging material, are reacted and are composited in the aqueous solution by following component, comprising:
(1) polyvinyl alcohol, 40g/L-70g/L;
(2) glutaraldehyde, 3g/L-5g/L;
(3) acid red, 1.0g/L-1.5g/L;
(4) nano-TiO
2, 0. 1g/L-0. 4g/L; Nanometer SiO
2, 0. 20g/L-0. 60g/L.
Described acid red is azorubine, and molecular formula is C
20h
12n
2na
2o
7s
2, meet GB2760 requirement, belong to food additives, food color.
The preparation method of described composite Nano coating-film fresh-keeping packaging material, comprises the following steps:
Step 1), by nano-TiO
2, nanometer SiO
2add in polyvinyl alcohol water solution and carry out ultrasonic mixing, form uniform mixed solution;
Step 2), the mixed solution agitating heating of step 1) is heated up, add glutaraldehyde, holding temperature is carried out cross-linking reaction;
Step 3), acid red is added to step 2) product in, constant temperature stirs, and makes described composite Nano coating-film fresh-keeping packaging material.
In above-mentioned preparation method, the ratio of each component is polyvinyl alcohol 40g/L-70g/L, glutaraldehyde 3g/L-5g/L, acid red (azorubine) 1.0g/L-1.5g/L, nano-TiO
20. 1g/L-0. 4g/L, and nanometer SiO
20. 20g/L-0. 60g/L.
In step 1), ultrasonic incorporation time is preferably 15-20 minute, and ultrasonic power density is preferably 70-80W/L.
Step 2) in, preferred reaction condition is that heating-up temperature is 85-95 ℃, and the reaction time is 40-50 minute.
In step 3), mixing time is preferably 10-20 minute.
The invention still further relates to the coating method of described conventional red egg nano-freshness retaining packaging material, be conventional red egg coating-film fresh-keeping packing process for making: nano-film coating fresh-keeping packaging material is added after thermal agitation, heat is applied to ripe egg surface, hot blast evenly dries up film forming, then more than repeating heat painting once.
In the making of conventional red egg, the concrete grammar of coating film is: heating 15g/L-25 g/L saline solution, and when the temperature difference of salt solution and egg is 50-60 ℃, egg is put into salt solution and boil; Nano-film coating fresh-keeping packaging material is added to thermal agitation, reach 85-95 ℃ to temperature, heat is applied to the egg surface (keeping egg surface temperature more than 70 ℃) of boiling in salt solution, and hot blast evenly dries up film forming, then repeats more than heat is coated with once.
The invention has the advantages that:
(1) according to the present invention, in conventional red egg manufacture craft, adopt environmentally friendly nano coating film metrial coating-film fresh-keeping packing, making production technology is simple, can realize mechanization and greatly enhance productivity, reduce labor cost, and with the comparison of the current red red eggs plastic sheeting vacuum packaging mode of production, can significantly reduce packing timber amount, packaging waste environmental friendliness can be decomposed completely, avoided plastics packed white pollution, conventional red egg is realized on maintenance traditional characteristics basis efficient, energy-saving and emission-reduction, the modern mode of production of low charcoal green, significantly improve its scale production capacity and economic benefit.
(2) acid red (azorubine) that the preparation of conventional red egg special-purpose nanometer class coating material adopts is a kind of additive that directly applies to food, safe and sanitary, color are scarlet, make and adopt magenta to compare as the red egg of DYE PRODUCTION with traditional workshop, improved the commodity of foodsafety and product.
(3) adopt nano-TiO
2and SiO
2pVA-based compelx coating material is carried out to modification, can significantly improve PVA-based compelx coating material sterilizing fresh-keeping function; Significantly reduce material filming rate of perviousness, effectively improve its film forming resistance to water and barrier property.
Accompanying drawing explanation
Figure 1A, nanometer SiO
2, nano-TiO
2response surface curve on the impact of composite membrane film forming rate of perviousness.
Figure 1B, nanometer SiO
2, nano-TiO
2contour on the impact of composite membrane film forming rate of perviousness.
Fig. 2 A, nanometer SiO
2, the response surface curve of glutaraldehyde on composite membrane film forming rate of perviousness impact.
Fig. 2 B, nanometer SiO
2, the response surface curve of glutaraldehyde on composite membrane film forming rate of perviousness impact.
Fig. 3, the impact of glutaraldehyde addition on composite membrane bacteriostasis property.
The specific embodiment
Below in conjunction with embodiment, the invention will be further described.In following examples, unless stated otherwise, the concentration g/L(w/v of component
water) refer to each component in compelx coating fresh-keeping packaging material mix after concentration in the aqueous solution.
Embodiment 1
According to conventional red egg special-purpose nanometer coating-film fresh-keeping packaging material of the present invention, its preparation method is: by a certain amount of nano-TiO
2, nanometer SiO
2by proportioning, add in the PVA aqueous solution of 50g/L, be placed in ultrasound bath, ultrasonic 15-20 minute under power density 70-80W/L condition, makes nano-TiO
2and SiO
2be dispersed in polyvinyl alcohol water solution, mixed solution heating is stirred to temperature and reaches 85-95 ℃, a certain amount of glutaraldehyde is added in above-mentioned nano material-polyvinyl alcohol mixing liquid to insulated and stirred 40-50 minute; 1.2g/L acid red (azorubine) is added in above-mentioned glutaraldehyde-nano material-poly-vinyl alcohol solution, and constant temperature stirs and within 10-20 minute, makes composite Nano class coating material.
Wherein, nano-TiO
2, nanometer SiO
2add by table 1 response curved surface experimental design table with the addition of glutaraldehyde.
Each factor addition response curved surface experimental design of the red composite Nano coating-film fresh-keeping of table 1 packaging material
Film forming performance characteristics for test conventional red egg special-purpose nanometer coating-film fresh-keeping packaging material, get nano-film coating packaging material film liquid and put into flat vessel, at 55-60 ℃ of temperature, after vacuum drying 5-7h, take off film, film forming thickness is 0.07mm, then measure (23 ℃ of rate of perviousness, 80%RH), (23 ℃, 80%RH) and the film forming performance characteristics such as biocidal property, result is as shown in table 2 for hydroscopicity.
The red composite Nano coating-film fresh-keeping of table 2 packaging material film forming performance characteristics response curved surface result of the test
The biocidal property of conventional red egg special-purpose nanometer coating-film fresh-keeping packaging material can compare by inhibition zone size.Wherein, only the PVA composite membrane containing nano material does not show obvious inhibitory effect, and after adding glutaraldehyde, the inhibitory effect of composite membrane gets a promotion, and glutaraldehyde addition on the impact of the inhibitory effect of composite membrane as shown in Figure 3.
The rate of perviousness of composite membrane of take carries out multiple regression Fitting Analysis, nano-TiO to test data as response
2, nanometer SiO
2with glutaraldehyde on the impact of composite membrane rate of perviousness as shown in table 2, Fig. 1 and Fig. 2, nano-TiO wherein
2with nanometer SiO
2, nanometer SiO
2with glutaraldehyde, the rate of perviousness of red nano compelx coating material being had to significant reciprocation, there is flex point to the impact of conventional red egg special-purpose film-coating material rate of perviousness in three, and being added with in certain limit helps reduce the rate of perviousness of composite membrane.At glutaraldehyde 3g/L-5g/L, nano-TiO
20. 1g/L-0. 4g/L, nanometer SiO
2the composite Nano coating-film fresh-keeping packaging material that make in the scope of 0. 20g/L-0. 60g/L have comparatively desirable rate of perviousness.
Embodiment 2
By nano-TiO
2, nanometer SiO
2press respectively 0.1g/L, the proportioning of 0.2g/L is added in the PVA aqueous solution of 40g/L, is placed in ultrasound bath, under power density 80W/L condition ultrasonic 15 minutes, makes nano-TiO
2with nanometer SiO
2be dispersed in polyvinyl alcohol water solution; Mixed solution heating is stirred to temperature and reaches 88 ℃, glutaraldehyde is added in above-mentioned nano material-polyvinyl alcohol mixing liquid to insulated and stirred 45 minutes by 3g/L proportioning; 1.2g/L acid red (azorubine) is added in above-mentioned glutaraldehyde-nano material-poly-vinyl alcohol solution, and constant temperature stirs and within 15 minutes, makes composite Nano class coating material.The film forming usefulness of test compound coating-film fresh-keeping packaging material, show that rate of perviousness is 6.077 g*m
-2* h
-1, antibacterial circle diameter is 20.14mm.
Embodiment 3
By nano-TiO
2, nanometer SiO
2do not press 0.4g/L, the proportioning of 0.6g/L is added in the PVA aqueous solution of 70g/L, is placed in ultrasound bath, under power density 80W/L condition ultrasonic 15 minutes, makes nano-TiO
2with nanometer SiO
2be dispersed in polyvinyl alcohol water solution; Mixed solution heating is stirred to temperature and reaches 88 ℃, glutaraldehyde is added in above-mentioned nano material-polyvinyl alcohol mixing liquid to insulated and stirred 45 minutes by 5g/L proportioning; 1.2g/L acid red (azorubine) is added in above-mentioned glutaraldehyde-nano material-poly-vinyl alcohol solution, and constant temperature stirs and within 15 minutes, makes composite Nano class coating material.The film forming usefulness of test compound coating-film fresh-keeping packaging material, show that rate of perviousness is 4.775 g*m
-2* h
-1, antibacterial circle diameter is 21.43mm.
Embodiment 4
Utilize the prepared coating-film fresh-keeping packaging material of embodiment 3 to film and pack making conventional red egg, concrete grammar is: heating 15g/L-25 g/L saline solution, and when the temperature of salt solution exceeds room temperature 50-60 ℃, the egg of placing under room temperature is put into salt solution and boil; Composite Nano coating-film fresh-keeping packaging material are added to thermal agitation, reach 85-95 ℃ to temperature; The egg boiling in salt solution (keeping egg surface temperature more than 70 ℃) is dipped in to 20s left and right in coating liquid, takes out hot blast and evenly dry up, film forming, then repeat heat painting once.
The coating liquid 3g left and right that every egg expends, dries up after film forming the egg about 0.1g that increases weight, and 1.8 g compare with plastic sheeting vacuum packaging feed consumption, can reduce packing feed consumption more than 90%, significantly reduce packing cost.And the present invention boils rear directly dip-coating in 85-95 ℃ of film liquid by egg, then hot blast drying is in eggshell surface film forming, can realize the mechanical automation mode of production, when greatly enhancing productivity, also avoided current commercially available red red eggs to adopt red plastic film vacuum packaging to need 3 high-temperature process, the problem that the nutrition of product, flavor quality are had a strong impact on.In addition, adopt special-purpose nanometer class coating material to film and pack the image product that the red egg of making has kept conventional red egg, the fresh-keeping shelf-life of product can meet the needs in circulation sale cycle, has improved security quality and the commodity of product.
Visible; conventional red egg special-purpose nanometer coating-film fresh-keeping packaging material of the present invention and preparation and coating method; for the large-scale production of conventional red egg provides a kind of new material and new technology; to thoroughly change traditional mode of production mode; make conventional red egg keeping realizing efficiently on traditional characteristics basis, the modern mechanical automated production mode of energy-saving and emission-reduction, low charcoal green, significantly improve its scale production capacity and economic benefit.
Claims (7)
1. conventional red egg composite Nano coating-film fresh-keeping packaging material, is characterized in that, by following component, in the aqueous solution, are reacted and are composited, and comprising:
(1) polyvinyl alcohol, 40g/L-70g/L;
(2) glutaraldehyde, 3g/L-5g/L;
(3) acid red, 1.0g/L-1.5g/L;
(4) nano-TiO
2, 0. 1g/L-0. 4g/L; With nanometer SiO
2, 0. 20g/L-0. 60g/L.
2. composite Nano coating-film fresh-keeping packaging material according to claim 1, is characterized in that: described acid red molecular formula is C
20h
12n
2na
2o
7s
2, meet GB2760 requirement.
3. the preparation method of conventional red egg composite Nano coating-film fresh-keeping packaging material claimed in claim 1, comprises the following steps:
1), by nano-TiO
2, nanometer SiO
2add ultrasonic mixing in polyvinyl alcohol water solution to, form uniform mixed solution;
2), the mixed solution agitating heating of step 1) is heated up, add glutaraldehyde, holding temperature is carried out cross-linking reaction, and wherein heating-up temperature is 85-95 ℃, and the reaction time is 40-50 minute;
3) in product, acid red is added to above-mentioned steps 2), constant temperature stirs, and makes described composite Nano coating-film fresh-keeping packaging material.
4. the preparation method of composite Nano coating-film fresh-keeping packaging material according to claim 3, is characterized in that: in step 1), ultrasonic incorporation time is 15-20 minute, and ultrasonic power density is 70-80W/L.
5. the preparation method of composite Nano coating-film fresh-keeping packaging material according to claim 3, is characterized in that: in step 3), constant temperature mixing time is 10-20 minute.
6. the packing manufacture craft of filming of conventional red egg, is characterized in that: composite Nano coating-film fresh-keeping packaging material are added after thermal agitation, and heat is applied to ripe egg surface, and hot blast evenly dries up film forming; More than repeating heat painting once;
Described composite Nano coating-film fresh-keeping packaging material are reacted and are composited in the aqueous solution by following component, comprising:
(1) polyvinyl alcohol, 40g/L-70g/L;
(2) glutaraldehyde, 3g/L-5g/L;
(3) acid red, 1.0g/L-1.5g/L;
(4) nano-TiO
2, 0. 1g/L-0. 4g/L; Nanometer SiO
2, 0. 20g/L-0. 60g/L.
7. the packing manufacture craft of filming of conventional red egg according to claim 6, it is characterized in that, the concrete grammar of described manufacture craft is that heating 15g/L-25 g/L saline solution is put into salt solution by egg and boiled when the temperature difference of salt solution and egg is 50-60 ℃; Composite Nano coating-film fresh-keeping packaging material are added to thermal agitation, reach 85-95 ℃ to temperature, heat is applied to 70 ℃ of above ripe eggs surfaces of surface temperature, and hot blast evenly dries up film forming, then repeats more than heat is coated with once.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210125249.6A CN102613277B (en) | 2012-04-26 | 2012-04-26 | Nano coating preservation packaging material special for traditional red egg, preparation method and coating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210125249.6A CN102613277B (en) | 2012-04-26 | 2012-04-26 | Nano coating preservation packaging material special for traditional red egg, preparation method and coating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102613277A CN102613277A (en) | 2012-08-01 |
| CN102613277B true CN102613277B (en) | 2014-03-05 |
Family
ID=46553757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210125249.6A Expired - Fee Related CN102613277B (en) | 2012-04-26 | 2012-04-26 | Nano coating preservation packaging material special for traditional red egg, preparation method and coating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102613277B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104277389B (en) * | 2013-07-10 | 2016-11-23 | 常熟市屹浩食品包装材料科技有限公司 | Nanometer α-Fe2o3function modified PVA base compelx coating fresh-keeping packaging material and preparation method thereof |
| CN105638855A (en) * | 2016-01-07 | 2016-06-08 | 东北农业大学 | Soybean protein composite nanoparticle egg coating preservative and preparation method thereof |
| CN109527069A (en) * | 2018-12-25 | 2019-03-29 | 杭州宝积生物科技有限公司 | A kind of novel fresh egg product photocatalyst Non-water washing bactericidal cleaning fresh-keeping liquid and birds, beasts and eggs |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4191102A (en) * | 1976-09-23 | 1980-03-04 | Cope Whelon and Company, Limited | Egg-deshelling apparatus |
| SG52462A1 (en) * | 1992-12-07 | 2001-02-20 | Singapore Productivity & Stand | Process for treating natural products |
| IL144058A (en) * | 2001-06-28 | 2006-10-05 | Yaakov Lahav | Composition for coating fruits, vegetables and fowl eggs, especially useful for organic produce |
| ES2303963T3 (en) * | 2003-12-12 | 2008-09-01 | Basf Se | PROCEDURE AND AGENTS FOR THE SURFACE TREATMENT OF FOOD. |
| CN1903048A (en) * | 2005-07-28 | 2007-01-31 | 陈莹贞 | Eggs with facteriostasis function, and processing method therefor |
| CN101390531B (en) * | 2008-10-22 | 2011-06-15 | 南京农业大学 | Traditional poultry eggs compound nano material coating-film fresh-keeping method |
-
2012
- 2012-04-26 CN CN201210125249.6A patent/CN102613277B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102613277A (en) | 2012-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102093722B (en) | Edible collagen food packaging film and preparation method thereof | |
| CN102613277B (en) | Nano coating preservation packaging material special for traditional red egg, preparation method and coating method | |
| CN105646951A (en) | Method for preparing functional soluble and edible compound membranes | |
| CN103120207B (en) | Preparation method of in-situ synthesized nano SiOx chitosan food fresh-keeping coating solution and application thereof | |
| CN103599546B (en) | Renewable calcium tablet filler containing modified starch | |
| CN103409035B (en) | A kind of canned food tailor-(made) coating and preparation method thereof | |
| CN101390531B (en) | Traditional poultry eggs compound nano material coating-film fresh-keeping method | |
| CN101899165A (en) | Edible film prepared by tape casting | |
| CN103110137A (en) | Method and system for producing runny preserved duck egg semi-continuously and rapidly through vacuum decompression | |
| CN102703544B (en) | Production method for instant xanthan gum | |
| CN104497710A (en) | New thermochromic ink | |
| CN104059574A (en) | Preparation method of polyvinyl formal adhesive | |
| CN106554643B (en) | The preparation method of high temperature resistant bismuth vanadium pigments | |
| CN102952349B (en) | Preparation method of polyvinyl chloride sealant gasket in tinplate bottle cap | |
| CN102336982A (en) | Processing modifier for polyvinyl chloride sealing strips | |
| CN105252622A (en) | Method for manufacturing craft through waste bamboo | |
| CN103289111A (en) | Preparation of edible multifunctional preservative film | |
| CN104489899A (en) | Brittle dropping pill and preparation method thereof | |
| CN110367441A (en) | A kind of preparation method of dragon fruit haematochrome microcapsules | |
| CN106262670B (en) | A kind of preparation method of Green edible salt | |
| CN107793855A (en) | A kind of preparation method for the environmentally friendly film for improving Salted duck egg freshness | |
| CN110194906A (en) | A kind of food grade shellac mixed liquor and preparation method thereof | |
| CN103044949B (en) | Preparation method of yellow pigment | |
| CN102531403B (en) | Method for preparing hollow glass microspheres with cordierite wrapped on surface | |
| CN109266126A (en) | Conventional red egg special-purpose nanometer coating-film fresh-keeping packaging material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 215500 Changshu National University Science Park, Suzhou, Jiangsu, Southeast campus of Changshu Institute Of Technology, building 503 Applicant after: CHANGSHU YIHAO FOOD PACKAGING MATERIAL TECHNOLOGY Co.,Ltd. Address before: 215500 Changshu National University Science Park, Suzhou, Jiangsu, Southeast campus of Changshu Institute Of Technology, building 503 Applicant before: CHANGSHU YIHAO FOOD PACKAGING MATERIAL Co.,Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: CHANGSHU YIHAO FOOD PACKAGING MATERIALS CO., LTD. TO: CHANGSHU YIHAO FOOD PACKAGING MATERIAL TECHNOLOGY CO., LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151026 Address after: 215500, Jiangsu southeast campus of Changshu Institute Of Technology, building T2, 5 floor Patentee after: CHANGSHU YIHAO FOOD PACKAGING MATERIAL TECHNOLOGY Co.,Ltd. Patentee after: NANJING AGRICULTURAL University Patentee after: Jiangsu Zhongnong Biotechnology Co.,Ltd. Address before: 215500 Changshu National University Science Park, Suzhou, Jiangsu, Southeast campus of Changshu Institute Of Technology, building 503 Patentee before: CHANGSHU YIHAO FOOD PACKAGING MATERIAL TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 |