CN112647356B - Preparation method of hydrophobic antibacterial coating applied to food packaging paper - Google Patents
Preparation method of hydrophobic antibacterial coating applied to food packaging paper Download PDFInfo
- Publication number
- CN112647356B CN112647356B CN202011333386.XA CN202011333386A CN112647356B CN 112647356 B CN112647356 B CN 112647356B CN 202011333386 A CN202011333386 A CN 202011333386A CN 112647356 B CN112647356 B CN 112647356B
- Authority
- CN
- China
- Prior art keywords
- food packaging
- polylactic acid
- packaging paper
- hydrophobic
- coating applied
- 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.)
- Active
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/11—Halides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/385—Oxides, hydroxides or carbonates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/46—Non-macromolecular organic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/36—Biocidal agents, e.g. fungicidal, bactericidal, insecticidal agents
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Packages (AREA)
- Wrappers (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a preparation method of a hydrophobic antibacterial coating applied to food packaging paper, and belongs to the technical field of food packaging. Adding trichloromethane into an antibacterial agent and a plasticizer, and heating and ultrasonically dispersing; and cooling to room temperature, adding polylactic acid particles, oscillating in an oscillator, and finally heating and ultrasonically dispersing to obtain the hydrophobic antibacterial coating applied to the food packaging paper. The hydrophobic antibacterial coating prepared by the invention can be applied to food packaging paper, the obtained packaging paper has good hydrophobic property and certain antibacterial property, and the components are all food-grade, so the coating has good safety and sanitation, good mechanical property, good degradability of wastes and no pollution to the environment.
Description
Technical Field
The invention relates to a preparation method of a hydrophobic antibacterial coating applied to food packaging paper, and belongs to the technical field of food packaging.
Background
In recent years, due to the concept of environmental protection and sustainability development, the demand for degradable packaging materials from renewable resources has increased gradually. Many biodegradable polymers are gaining in importance in the medical and food packaging fields, with polylactic acid being one of the most promising materials. As one of the polyester materials, polylactic acid is gradually applied to various fields due to its advantages such as biodegradability, biocompatibility, and low price.
The paper has good hydrophilicity due to the structure of multiple pores and the like, and the waterproof paper on the market is mostly prepared by adopting a method of compounding petroleum-based compounds or coating fluorine compounds at present, but the degradability and the sanitary safety are poor.
Disclosure of Invention
The invention aims to overcome the defects and provide the preparation method of the hydrophobic antibacterial coating applied to the food packaging paper, which can enhance the water resistance, antibacterial property, mechanical strength and the like of the packaging paper.
According to the technical scheme, the preparation method of the hydrophobic antibacterial coating applied to the food packaging paper comprises the steps of taking an antibacterial agent and a plasticizer, adding trichloromethane, and heating and ultrasonically dispersing; and cooling to room temperature, adding polylactic acid particles, oscillating in an oscillator, and finally heating and ultrasonically dispersing to obtain the hydrophobic antibacterial coating applied to the food packaging paper.
As the preferred embodiment of the invention, the antibacterial agent is one or more of nano zinc oxide, nano silver and nano titanium oxide.
As a preferred embodiment of the invention, the plasticizer is one or more of glycerol, lecithin and polyacrylic acid.
As a preferred embodiment of the invention, the antibacterial agent is added into a brown reagent bottle, the plasticizer is added, and then the chloroform is added; ultrasonically dispersing for 0.5-2 h in the environment of 10-25 Hz and the water temperature of 40-60 ℃; cooling to room temperature, and adding polylactic acid particles; placing the mixture in an oscillator with the rotating speed of 70-200 rpm/min for oscillation for 1-3.5 h; and finally, uniformly dispersing the solution in an environment with 10-25 Hz and 35-45 ℃ of water for 0.5-1.5 h.
In a preferred embodiment of the present invention, the polylactic acid is added in an amount of 1 to 7 g; the addition amount of the antibacterial agent is 0.3-5% of the mass of the polylactic acid; the addition amount of the plasticizer is 1-5% of the mass of the polylactic acid; the additive amount of the trichloromethane is 80-130 mL.
Compared with the prior art, the invention has the beneficial effects that:
1. after the coating is coated on paper or paperboard, the paper food packaging material can be used for paper food packaging such as lunch boxes and the like, and compared with most of the existing lunch boxes and food packaging paper, all the materials do not contain petroleum-based compounds, so that the waste is convenient to recycle;
2. the polylactic acid is an environment-friendly degradable material, and the nano zinc oxide is non-toxic to human bodies and has good chemical stability. Since no fluorine-containing oil repellent is used, there is no fear that harmful substances such as perfluorooctane sulfonic acid are generated. The used materials are all food-grade, green and safe, so the materials have superior environmental protection and degradation.
3. After the coating is coated on paper or a paperboard, the hydrophobicity is good; the nano zinc oxide has good antibacterial activity, and the antibacterial performance of the coating is good.
Detailed Description
Example 1
Adding a certain amount of nano zinc oxide into a brown reagent bottle, wherein the addition amount is 4% of the weight of the polylactic acid, adding 4% of lecithin, absorbing 92mL of chloroform, sealing a bottle mouth, ultrasonically dispersing for 2.5h in an environment with the frequency of 18Hz and the water temperature of 40 ℃, adding 6.2g of polylactic acid, vibrating on an oscillator for 2h, the vibration frequency is 80rpm/min, and uniformly dispersing the solution in an environment with the temperature of 10Hz and the water temperature of 40 ℃ for 0.5 h.
Example 2
Adding a certain amount of nano titanium oxide into a brown reagent bottle, wherein the addition amount is 3.5 percent of the weight of polylactic acid, adding 4 percent of glycerol, absorbing 105mL of chloroform, sealing a bottle mouth, ultrasonically dispersing for 1.5h in an environment with the frequency of 20Hz and the water temperature of 40 ℃, adding 5.5g of polylactic acid, vibrating on an oscillator for 3h, the vibration frequency is 80rpm/min, and uniformly dispersing the solution in an environment with the temperature of 10Hz and the water temperature of 40 ℃ for 1 h.
Example 3
Adding a certain amount of nano zinc oxide into a brown reagent bottle, wherein the addition amount is 2.8 percent of the weight of polylactic acid, adding 2 percent of polyacrylic acid, absorbing 95mL of chloroform, sealing a bottle mouth, ultrasonically dispersing for 1h in an environment with the frequency of 15Hz and the water temperature of 40 ℃, adding 4g of polylactic acid, vibrating on an oscillator for 2h, the vibration frequency is 80rpm/min, and uniformly dispersing the solution in an environment with the temperature of 10Hz and the water temperature of 40 ℃ for 0.5 h.
Example 4
Adding a certain amount of nano silver into a brown reagent bottle, wherein the adding amount is 3% of the weight of the polylactic acid, adding 3% of glycerol, absorbing 105mL of chloroform, sealing a bottle mouth, ultrasonically dispersing for 1.5h in an environment with the frequency of 20Hz and the water temperature of 50 ℃, adding 4.8g of polylactic acid, vibrating on an oscillator for 2h, the vibration frequency is 80rpm/min, and uniformly dispersing the solution in an environment with the temperature of 10Hz and the water temperature of 40 ℃ for 1.5 h.
Application example 1
A hydrophobic antibacterial coating applied to food wrapping paper prepared in examples 1-4 was subjected to a performance test.
1. The base paper and the coated paper are treated according to GB/T10739-2002. The paper was coated with the coating obtained in each of the above examples at a coater speed of 40mm/s and then dried naturally for 24 hours.
2. Measuring the water contact angle of the coated paper to judge the hydrophobicity of the coated paper, randomly searching ten points for each piece of paper to measure the contact angle, and taking the average value of the contact angles; the coated paper was measured for water repellency according to GB/T1540-2002 "measurement of Water absorption of paper and Board (Kibo method)", and the average value was taken ten times.
3. According to GB/T21510-.
The results of the performance tests of the examples are shown in table 1.
TABLE 1
| Example 1 | Example 2 | Example 3 | Example 4 | |
| Contact angle (°) | 109.6 | 103.8 | 95.2 | 98.6 |
| Cobb value (g/m)2) | 3.06 | 4.56 | 5.01 | 4.92 |
| Escherichia coli inhibitory rate (%) | 85.5 | 83.6 | 79.5 | 81.2 |
| Staphylococcus aureus inhibitory rate (%) | 88.1 | 87.8 | 86.6 | 87.4 |
As is clear from table 1, the hydrophobic and antibacterial effects of the coated paper become more pronounced as the amount of the antibacterial agent added is larger, and the effects gradually decrease as the amount of the antibacterial agent is smaller. Wherein the coated paper prepared by each parameter ratio of the example 4 has good antibacterial property and hydrophobicity. In actual use, proper parameters are selected for configuration according to the consideration of cost, effect and the like, and the hydrophobic antibacterial coated paper is prepared.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (1)
1. A preparation method of a hydrophobic antibacterial coating applied to food packaging paper is characterized by comprising the following steps: adding chloroform into the antibacterial agent and the plasticizer, and heating and ultrasonically dispersing; cooling to room temperature, adding polylactic acid particles, oscillating in an oscillator, and finally heating and ultrasonically dispersing to obtain a hydrophobic antibacterial coating applied to food packaging paper;
adding the antibacterial agent into a brown reagent bottle, adding a plasticizer and then adding trichloromethane; ultrasonically dispersing for 0.5-2 h in the environment of 10-25 Hz and the water temperature of 40-60 ℃; cooling to room temperature, and adding polylactic acid particles; placing the mixture in an oscillator with the rotating speed of 70-200 rpm for oscillation for 1-3.5 h; finally, uniformly dispersing the solution in an environment with 10-25 Hz and 35-45 ℃ of water for 0.5-1.5 h;
the adding amount of the polylactic acid is 1-7 g; the addition amount of the antibacterial agent is 0.3-5% of the mass of the polylactic acid; the addition amount of the plasticizer is 1-5% of the mass of the polylactic acid; the additive amount of the trichloromethane is 80-130 mL;
the antibacterial agent is one or more of nano zinc oxide or nano titanium oxide;
the plasticizer is one or more of lecithin or polyacrylic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011333386.XA CN112647356B (en) | 2020-11-25 | 2020-11-25 | Preparation method of hydrophobic antibacterial coating applied to food packaging paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011333386.XA CN112647356B (en) | 2020-11-25 | 2020-11-25 | Preparation method of hydrophobic antibacterial coating applied to food packaging paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112647356A CN112647356A (en) | 2021-04-13 |
| CN112647356B true CN112647356B (en) | 2021-12-21 |
Family
ID=75349326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011333386.XA Active CN112647356B (en) | 2020-11-25 | 2020-11-25 | Preparation method of hydrophobic antibacterial coating applied to food packaging paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112647356B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117025066A (en) * | 2023-08-14 | 2023-11-10 | 东莞市霖晨纳米科技有限公司 | Antibacterial nano composite coating and preparation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8828516B2 (en) * | 2012-05-03 | 2014-09-09 | Biovation Ii Llc | Biodegradable polymer non-woven absorbent pad with absorbency and antimicrobial chemistry |
| CN102973986A (en) * | 2012-07-19 | 2013-03-20 | 黄斌 | Medical super-lubricity antibacterial catheter coating liquid |
| CN105214579A (en) * | 2015-11-04 | 2016-01-06 | 上海洁晟环保科技有限公司 | Realize the processing method of micron or nanoscale porous material functionalization |
| CN106146989A (en) * | 2016-08-18 | 2016-11-23 | 安徽颍美彩印包装有限公司 | A kind of natural anti-corrosive antibacterial packaging material for food and preparation method thereof |
| CN109880470B (en) * | 2019-03-29 | 2021-05-18 | 福州大学 | Preparation method of water-based acrylate time-delay antibacterial coating |
| CN110835417B (en) * | 2019-12-11 | 2022-09-23 | 上海海洋大学 | Barrier degradable antibacterial food preservative film and preparation method and application thereof |
-
2020
- 2020-11-25 CN CN202011333386.XA patent/CN112647356B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112647356A (en) | 2021-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102964932B (en) | A kind of preparation method of multi-functional damping interior wall coating | |
| CN112647356B (en) | Preparation method of hydrophobic antibacterial coating applied to food packaging paper | |
| CN107956190A (en) | A kind of novel environment friendly waterproof and oilproof paper and preparation method thereof | |
| US8119548B2 (en) | Nanosilver as a biocide in building materials | |
| CN112647357A (en) | Preparation method of waterproof, oil-proof and antibacterial packaging paperboard | |
| CN110396224A (en) | A kind of preparation method of anti-oxidant bacteriostatic film that carrying cinnamon essential oil pickering emulsion | |
| WO2008103123B1 (en) | Polymeric film or coating comprising hemicellulose | |
| Fan et al. | Preparation and characterization of electrospun antimicrobial fibrous membranes based on polyhydroxybutyrate (PHB) | |
| CN114990936B (en) | Bio-based waterproof and oilproof packaging paper and preparation method thereof | |
| ITVA20110005A1 (en) | COMPOSITIONS TO LEARN RESISTANCE TO FATS AND OILS | |
| CN105504357A (en) | Antibacterial-type nanofiber-based preservative film and preparation method thereof | |
| CN105951510B (en) | A kind of paper products antibacterial coating material | |
| CN108218316B (en) | A kind of abatvoix and preparation method thereof | |
| Mohaiyiddin et al. | Swelling behavior and chemical stability of chitosan/nanocellulose biocomposites | |
| Yun et al. | Physical properties and photocatalytic activity of chitosan-based nanocomposites added titanium oxide nanoparticles | |
| Yildirim et al. | A study on physical, morphological and antibacterial properties of bio polymers reinforced polyvinyl acetate foams | |
| Chen et al. | Influence of ammonium zirconium carbonate on properties of poly (vinyl alcohol)/xylan composite films | |
| CN105646922A (en) | Gel film with curdlan quaternary ammonium salt and polyvinyl alcohol and antibacterial application of gel film | |
| CN110607715A (en) | Fluorine-free oil-proof paper and preparation method and application thereof | |
| AU2012256273A1 (en) | Water repellent fiber boards | |
| CN112609500A (en) | Preparation method of oil-proof antibacterial coating applied to food packaging paper | |
| JP4848891B2 (en) | Biodegradable gas barrier material | |
| CN104250415A (en) | Uvioresistant polyving alcohol-xylan composite membrane as well as preparation method and application thereof | |
| KR102193847B1 (en) | Eco-friendly Paper Coating Agent | |
| Ioelovich et al. | Green nano-protective coating |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |