CN114589959B - Preparation method of hydrophobic packaging carton - Google Patents
Preparation method of hydrophobic packaging carton Download PDFInfo
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- CN114589959B CN114589959B CN202011416527.4A CN202011416527A CN114589959B CN 114589959 B CN114589959 B CN 114589959B CN 202011416527 A CN202011416527 A CN 202011416527A CN 114589959 B CN114589959 B CN 114589959B
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 17
- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title abstract description 5
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000000839 emulsion Substances 0.000 claims abstract description 45
- 239000011259 mixed solution Substances 0.000 claims abstract description 31
- 229920001661 Chitosan Polymers 0.000 claims abstract description 23
- 239000011248 coating agent Substances 0.000 claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 23
- 235000013871 bee wax Nutrition 0.000 claims abstract description 16
- 239000012166 beeswax Substances 0.000 claims abstract description 16
- 239000000243 solution Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 25
- 238000001035 drying Methods 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 15
- 238000005520 cutting process Methods 0.000 claims description 10
- 238000007373 indentation Methods 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000005457 ice water Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000004014 plasticizer Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 238000003892 spreading Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 4
- 230000004888 barrier function Effects 0.000 abstract description 3
- 239000001993 wax Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 150000004676 glycans Chemical class 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract description 2
- 229920001282 polysaccharide Polymers 0.000 abstract description 2
- 239000005017 polysaccharide Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 239000000123 paper Substances 0.000 description 40
- 239000005022 packaging material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
- B31B50/20—Cutting sheets or blanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/26—Folding sheets, blanks or webs
-
- 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
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
-
- 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
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/18—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising waxes
-
- 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
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The invention discloses a preparation method of a hydrophobic packaging carton, which comprises the following steps: s1, preparing a mixed solution, S2, preparing a mixed emulsion, S3, coating the mixed emulsion, S4 and preparing a paper box, wherein chitosan is water-insoluble polysaccharide and can be dissolved in a dilute acetic acid solution, and at the moment, positively charged chitosan molecules can play an electrostatic attraction role with negatively charged beeswax, so that the positively charged chitosan molecules can be firmly adsorbed on the surfaces of beeswax emulsion particles to form stable beeswax-chitosan emulsion, and the solid content of the beeswax is greatly improved. The emulsion type edible film is combined with paper, so that the strength is ensured, the wax consumption is increased, and the water vapor barrier effect is greatly improved. The novel hydrophobic coating emulsion provides a good technical scheme for improving the moisture resistance and water resistance of paper, and has good practical use value.
Description
Technical Field
The invention relates to the technical field of packaging products, in particular to a preparation method of a hydrophobic packaging carton.
Background
Paper, plastic, metal and glass are four major pillar materials in the modern packaging industry. Among them, paper packaging materials are considered as the most promising green packaging materials due to their abundant resources, easy recycling and easy degradation. Untreated paper has strong moisture and liquid absorption properties and is not suitable for direct use in packaging materials. The traditional moistureproof processing paper is a novel composite material formed by covering materials with strong water vapor barrier property, such as plastics, metals, waxes, resins and the like, on the surface or inside of the paper by various processes, and is widely applied to industries of food packaging and the like. But the cover is difficult to separate from the packaging paper box, the separation process is complex in process and high in cost, and the recycling value of the packaging paper box is improved.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a preparation method of a hydrophobic packaging carton.
In order to solve the technical problems, the invention provides the following technical scheme:
a method of making a hydrophobic packaging carton comprising the steps of:
s1, preparing a mixed solution, namely slowly adding chitosan powder into an acetic acid solution while stirring to dissolve, continuously stirring until the chitosan powder is completely dissolved, adding glycerol as a plasticizer, and continuously and uniformly stirring to obtain the mixed solution;
s2, preparing mixed emulsion, namely heating the mixed solution in water bath with the temperature of more than 75 ℃ for 30-50min, adding beeswax into the mixed solution while stirring, then completely and uniformly stirring by a high-speed dispersing homogenizer to obtain mixed emulsion, and finally rapidly cooling the mixed emulsion to room temperature;
s3, coating the mixed emulsion, namely spreading the base paper on a working table of a coating machine, uniformly coating the mixed emulsion prepared in the S2 on the base paper by using the coating machine, and drying and solidifying the base paper after the base paper is fully absorbed;
s4, preparing the paper box, namely cutting the base paper prepared in the step S3 into a required shape by using a die cutting machine, folding the base paper into longitudinal indentations and transverse indentations by using a pressing wheel, and finally folding and combining the base paper into the packaging paper box.
As a preferred technical scheme of the invention, in step S1, the mixed solution comprises the following raw material components in parts by mass: 1-5 parts of chitosan powder, 100-500 parts of acetic acid solution, 0.3-1.2 parts of glycerol and 1-5wt% of acetic acid.
In step S1, in step S2, the raw material components of the mixed emulsion are as follows in parts by weight: 1-5 parts of mixed solution and 1-20 parts of beeswax.
As a preferred embodiment of the present invention, in step S2, the mixed emulsion is placed in an ice-water bath and cooled to room temperature.
As a preferred technical scheme of the invention, in the step S3, the drying temperature is 80-95 ℃ and the drying time is 30-60min.
The beneficial effects of the invention are as follows:
the chitosan is water insoluble polysaccharide and can be dissolved in dilute acetic acid solution, and at the moment, the positively charged chitosan molecules can play an electrostatic attraction role with the negatively charged beeswax, so that the chitosan can be firmly adsorbed on the surfaces of the beeswax emulsion particles to form stable beeswax-chitosan emulsion, and the solid content of the beeswax is greatly improved. The emulsion type edible film is combined with paper, so that the strength is ensured, the wax consumption is increased, and the water vapor barrier effect is greatly improved. The novel hydrophobic coating emulsion provides a good technical scheme for improving the moisture resistance and water resistance of paper, and has good practical use value.
Detailed Description
The present invention is described below in connection with the preferred embodiments, it being understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
Example 1
S1, preparing a mixed solution, namely slowly adding chitosan powder into an acetic acid solution while stirring to dissolve, continuously stirring until the chitosan powder is completely dissolved, adding glycerol as a plasticizer, and continuously and uniformly stirring to obtain the mixed solution;
s2, preparing mixed emulsion, namely placing the mixed solution into a water bath with the temperature of 75 ℃ for heating for 30min, adding beeswax into the mixed solution while stirring, then completely and uniformly stirring by a high-speed dispersing homogenizer to obtain mixed emulsion, and finally rapidly cooling the mixed emulsion to room temperature;
s3, coating the mixed emulsion, namely spreading the base paper on a working table of a coating machine, uniformly coating the mixed emulsion prepared in the S2 on the base paper by using the coating machine, and drying and solidifying the base paper after the base paper is fully absorbed;
s4, preparing the paper box, namely cutting the base paper prepared in the step S3 into a required shape by using a die cutting machine, folding the base paper into longitudinal indentations and transverse indentations by using a pressing wheel, and finally folding and combining the base paper into the packaging paper box.
As a preferred technical scheme of the invention, in step S1, the mixed solution comprises the following raw material components in parts by mass: 1 part of chitosan powder, 100 parts of acetic acid solution, 0.3 part of glycerol and 1 weight percent of acetic acid.
As a preferable technical scheme of the invention, in the step S2, the mixed emulsion comprises the following raw material components in parts by mass: 1 part of mixed solution and 1 part of beeswax.
As a preferred embodiment of the present invention, in step S2, the mixed emulsion is placed in an ice-water bath and cooled to room temperature.
As a preferred embodiment of the present invention, in the step S3, the drying temperature is 80℃and the drying time is 30 minutes.
Example two
S1, preparing a mixed solution, namely slowly adding chitosan powder into an acetic acid solution while stirring to dissolve, continuously stirring until the chitosan powder is completely dissolved, adding glycerol as a plasticizer, and continuously and uniformly stirring to obtain the mixed solution;
s2, preparing mixed emulsion, namely placing the mixed solution into a water bath at 80 ℃ for heating for 40min, adding beeswax into the mixed solution while stirring, then completely and uniformly stirring by a high-speed dispersion homogenizer to obtain mixed emulsion, and finally rapidly cooling the mixed emulsion to room temperature;
s3, coating the mixed emulsion, namely spreading the base paper on a working table of a coating machine, uniformly coating the mixed emulsion prepared in the S2 on the base paper by using the coating machine, and drying and solidifying the base paper after the base paper is fully absorbed;
s4, preparing the paper box, namely cutting the base paper prepared in the step S3 into a required shape by using a die cutting machine, folding the base paper into longitudinal indentations and transverse indentations by using a pressing wheel, and finally folding and combining the base paper into the packaging paper box.
As a preferred technical scheme of the invention, in step S1, the mixed solution comprises the following raw material components in parts by mass: 3 parts of chitosan powder, 3 parts of acetic acid solution, 0.9 part of glycerol and 3 weight percent of acetic acid.
As a preferable technical scheme of the invention, in the step S2, the mixed emulsion comprises the following raw material components in parts by mass: 3 parts of mixed solution and 10 parts of beeswax.
As a preferred embodiment of the present invention, in step S2, the mixed emulsion is placed in an ice-water bath and cooled to room temperature.
As a preferred embodiment of the present invention, in step S3, the drying temperature is 85 and the drying time is 50n.
Example III
S1, preparing a mixed solution, namely slowly adding chitosan powder into an acetic acid solution while stirring to dissolve, continuously stirring until the chitosan powder is completely dissolved, adding glycerol as a plasticizer, and continuously and uniformly stirring to obtain the mixed solution;
s2, preparing mixed emulsion, namely placing the mixed solution into a water bath on a 90-degree water bath, heating for 50min, adding beeswax into the mixed solution while stirring, then completely and uniformly stirring by a high-speed dispersing homogenizer to obtain mixed emulsion, and finally rapidly cooling the mixed emulsion to room temperature;
s3, coating the mixed emulsion, namely spreading the base paper on a working table of a coating machine, uniformly coating the mixed emulsion prepared in the S2 on the base paper by using the coating machine, and drying and solidifying the base paper after the base paper is fully absorbed;
s4, preparing the paper box, namely cutting the base paper prepared in the step S3 into a required shape by using a die cutting machine, folding the base paper into longitudinal indentations and transverse indentations by using a pressing wheel, and finally folding and combining the base paper into the packaging paper box.
As a preferred technical scheme of the invention, in step S1, the mixed solution comprises the following raw material components in parts by mass: 5 parts of chitosan powder, 1500 parts of acetic acid solution, 1.2 parts of glycerol and 5 weight percent of acetic acid.
As a preferable technical scheme of the invention, in the step S2, the mixed emulsion comprises the following raw material components in parts by mass: 5 parts of mixed solution and 20 parts of beeswax.
As a preferred embodiment of the present invention, in step S2, the mixed emulsion is placed in an ice-water bath and cooled to room temperature.
As a preferred embodiment of the present invention, in the step S3, the drying temperature is 95℃and the drying time is 60 minutes.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (5)
1. A method for preparing a hydrophobic packaging carton, which is characterized by comprising the following steps:
s1, preparing a mixed solution, namely slowly adding chitosan powder into an acetic acid solution while stirring to dissolve, continuously stirring until the chitosan powder is completely dissolved, adding glycerol as a plasticizer, and continuously and uniformly stirring to obtain the mixed solution;
s2, preparing mixed emulsion, namely heating the mixed solution in water bath with the temperature of more than 75 ℃ for 30-50min, adding beeswax into the mixed solution while stirring, then completely and uniformly stirring by a high-speed dispersing homogenizer to obtain mixed emulsion, and finally rapidly cooling the mixed emulsion to room temperature;
s3, coating the mixed emulsion, namely spreading the base paper on a working table of a coating machine, uniformly coating the mixed emulsion prepared in the S2 on the base paper by using the coating machine, and drying and solidifying the base paper after the base paper is fully absorbed;
s4, preparing the paper box, namely cutting the base paper prepared in the step S3 into a required shape by using a die cutting machine, folding the base paper into longitudinal indentations and transverse indentations by using a pressing wheel, and finally folding and combining the base paper into the packaging paper box.
2. The method for preparing a hydrophobic packing carton according to claim 1, wherein in step S1, the mixed solution comprises the following raw material components in parts by mass: 1-5 parts of chitosan powder, 100-500 parts of acetic acid solution, 0.3-1.2 parts of glycerol and 1-5wt% of acetic acid.
3. The method for preparing a hydrophobic packing carton according to claim 1, wherein in step S2, the mixed emulsion comprises the following raw material components in parts by mass: 1-5 parts of mixed solution and 1-20 parts of beeswax.
4. The method of manufacturing a hydrophobic packing carton according to claim 1, wherein in step S2, the mixed emulsion is placed in an ice water bath and cooled to room temperature.
5. The method of manufacturing a hydrophobic packing carton according to claim 1, wherein in step S3, the drying temperature is 80-95 ℃ and the drying time is 30-60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011416527.4A CN114589959B (en) | 2020-12-07 | 2020-12-07 | Preparation method of hydrophobic packaging carton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011416527.4A CN114589959B (en) | 2020-12-07 | 2020-12-07 | Preparation method of hydrophobic packaging carton |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114589959A CN114589959A (en) | 2022-06-07 |
| CN114589959B true CN114589959B (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011416527.4A Active CN114589959B (en) | 2020-12-07 | 2020-12-07 | Preparation method of hydrophobic packaging carton |
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| Country | Link |
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| CN (1) | CN114589959B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115839043A (en) * | 2022-12-08 | 2023-03-24 | 黄山金仕特种包装材料有限公司 | Food packaging base paper and preparation method thereof |
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| Publication number | Publication date |
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| CN114589959A (en) | 2022-06-07 |
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