CN114908606A - Blister packaging paper, packaging container and manufacturing method of blister packaging paper - Google Patents
Blister packaging paper, packaging container and manufacturing method of blister packaging paper Download PDFInfo
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- CN114908606A CN114908606A CN202210412742.XA CN202210412742A CN114908606A CN 114908606 A CN114908606 A CN 114908606A CN 202210412742 A CN202210412742 A CN 202210412742A CN 114908606 A CN114908606 A CN 114908606A
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 85
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000000123 paper Substances 0.000 claims abstract description 165
- 239000010410 layer Substances 0.000 claims abstract description 111
- 239000011247 coating layer Substances 0.000 claims abstract description 95
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 74
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 57
- 239000004033 plastic Substances 0.000 claims abstract description 43
- 229920003023 plastic Polymers 0.000 claims abstract description 43
- 108010073771 Soybean Proteins Proteins 0.000 claims abstract description 39
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 37
- 239000000853 adhesive Substances 0.000 claims abstract description 32
- 230000001070 adhesive effect Effects 0.000 claims abstract description 30
- 235000019710 soybean protein Nutrition 0.000 claims abstract description 25
- 239000002689 soil Substances 0.000 claims abstract description 22
- 239000000314 lubricant Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 19
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 17
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 17
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 16
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 16
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 238000012856 packing Methods 0.000 claims abstract 5
- 239000011248 coating agent Substances 0.000 claims description 85
- 238000000576 coating method Methods 0.000 claims description 85
- 239000002245 particle Substances 0.000 claims description 38
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 30
- 239000011121 hardwood Substances 0.000 claims description 17
- 239000011122 softwood Substances 0.000 claims description 17
- 239000012792 core layer Substances 0.000 claims description 16
- 239000002344 surface layer Substances 0.000 claims description 15
- 239000000470 constituent Substances 0.000 claims description 14
- 238000004513 sizing Methods 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 22
- 238000007639 printing Methods 0.000 abstract description 17
- 238000012545 processing Methods 0.000 abstract description 10
- 239000004816 latex Substances 0.000 description 41
- 229920000126 latex Polymers 0.000 description 41
- 239000003921 oil Substances 0.000 description 20
- 239000002002 slurry Substances 0.000 description 16
- 229940001941 soy protein Drugs 0.000 description 14
- 230000005012 migration Effects 0.000 description 13
- 238000013508 migration Methods 0.000 description 13
- 239000000049 pigment Substances 0.000 description 12
- 239000002174 Styrene-butadiene Substances 0.000 description 8
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 8
- 238000001035 drying Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 239000011115 styrene butadiene Substances 0.000 description 8
- 229920003048 styrene butadiene rubber Polymers 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 239000011087 paperboard Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000009472 formulation Methods 0.000 description 6
- 230000009477 glass transition Effects 0.000 description 6
- 239000007791 liquid phase Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 description 4
- 239000011111 cardboard Substances 0.000 description 4
- 239000002655 kraft paper Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 239000013530 defoamer Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000013053 water resistant agent Substances 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical group [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 210000004080 milk Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Images
Classifications
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- 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
- D21H19/80—Paper comprising more than one coating
- D21H19/82—Paper comprising more than one coating superposed
-
- 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
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
-
- 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
-
- 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
- D21H21/16—Sizing or water-repelling agents
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Laminated Bodies (AREA)
Abstract
The application provides a manufacturing method of plastic uptake packing paper, a packing container and the plastic uptake packing paper, wherein, the plastic uptake packing paper comprises: a raw paper layer; the coating layer comprises a first coating layer and a second coating layer which are arranged in a laminated mode, wherein the first coating layer is arranged on the raw paper layer; wherein the second coating layer comprises the following raw materials in parts by weight: 50-80 parts of second heavy calcium carbonate, 10-20 parts of china clay, 10-30 parts of calcined soil, 14-18 parts of adhesive, 1-3 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent. The application provides a blister packaging paper when having good blister pack effect, can also guarantee better printing processing adaptability.
Description
Technical Field
The application relates to the technical field of paper making, in particular to blister packaging paper, a packaging container and a manufacturing method of the blister packaging paper.
Background
With the progress of society, people have higher and higher requirements on product packaging. As a novel packaging form, the blister packaging is more and more favored by the market because the blister packaging has the advantages of material saving, light weight and good sealing property and meets the requirement of green environmental protection. The vacuum plastic packaging mainly comprises the step of packaging a product after a plastic blister and paper are bonded, wherein the most easily-occurred quality abnormality is poor plastic suction. The standard for judging whether the paper blister package is qualified is that when the blister cover is torn, more than two thirds of the paper surface of the contact surface can be broken, namely, when the blister cover is torn, the stripping damage of the blister package is generated in the paper layer, namely, the plastic blister is adhered with the paper layer, which indicates that the blister package is successful. Therefore, when the plastic is sucked, when other conditions such as temperature, pressure, plastic sucking oil consumption, plastic sucking bubble caps and the like are fixed, the quality of the plastic sucking effect mainly depends on the performance of the coated paperboard, and especially when the coating strength of the coated white cardboard and the bonding strength of the coating and paper are greater than the internal strength of the paper layer, the performance requirement of the plastic sucking package can be met.
However, because the plastic-absorbing paper needs to be printed, the coating is closed due to the increase of the strength of the coating, the drying speed of the ink is slow, and the permeation and drying of the plastic-absorbing oil can be reduced, so that the surfaces of a plastic-absorbing oil layer, an ink layer and a coating layer are easy to damage interfaces, and the plastic absorption is poor; the lower the paper surface strength and the internal bonding strength are, the better the plastic uptake effect is, but the paper surface strength is reduced, and the surface layer peeling phenomenon is easy to occur in the printing process, so that the plastic uptake paper with good plastic uptake effect and printing processing adaptability is difficult to manufacture.
Disclosure of Invention
The application provides a blister packaging paper, a packaging container and a manufacturing method of the blister packaging paper, and aims to solve the problem that the existing blister packaging paper cannot guarantee good blister effect and printing processing adaptability at the same time.
In order to solve the technical problem, the present application provides a blister packaging paper, wherein, this blister packaging paper includes: a raw paper layer; the coating layer comprises a first coating layer and a second coating layer which are arranged in a laminated mode, and the first coating layer is arranged on the raw paper layer; wherein the second coating layer comprises the following raw materials in parts by weight: 50-80 parts of second heavy calcium carbonate, 10-20 parts of china clay, 10-30 parts of calcined soil, 14-18 parts of adhesive, 1-3 parts of soybean protein, 0.1-0.7 part of water-resistant agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent.
The second coating layer comprises second heavy calcium carbonate, china clay, calcined soil, an adhesive, soybean protein, a water resistance agent, a lubricant, sodium hydroxide, carboxymethyl cellulose and a defoaming agent, wherein the mass ratio of the components with the particle size of less than 2 microns in the second heavy calcium carbonate is less than that of the components with the particle size of less than 2 microns in the first heavy calcium carbonate.
Wherein the mass proportion of the component with the particle size less than 2 microns in the first heavy calcium carbonate is 60-75%, and the mass proportion of the component with the particle size less than 2 microns in the second heavy calcium carbonate is greater than or equal to 90-98%.
Wherein, the solid content of the first coating layer is 63-66%, and the solid content of the second coating layer is 63-66%.
Wherein the second coating layer comprises the following raw materials in parts by weight: 50-80 parts of second heavy calcium carbonate, 10-20 parts of china clay, 10-30 parts of calcined soil, 14-18 parts of adhesive, 1-3 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent.
Wherein the particle size of the adhesive is 160-180 nm.
The raw paper layer comprises a bottom layer, a core layer, a surface lining layer and a surface layer which are sequentially stacked, and the second coating layer is arranged on the surface layer, wherein the surface layer comprises 25-35% of bleached sulfate softwood pulp and 65-75% of bleached sulfate hardwood pulp in mass percentage; the surface lining layer comprises 20-30% of bleached sulfate softwood pulp and 70-80% of bleached sulfate hardwood pulp in mass ratio respectively; the core layer comprises 5-10% of bleached sulfate softwood pulp, 10-15% of bleached sulfate hardwood pulp and 75-85% of bleached chemithermomechanical pulp in percentage by mass; the bottom layer comprises 15-25% of bleached sulfate softwood pulp and 75-85% of bleached sulfate hardwood pulp by mass ratio respectively.
Wherein, the blister packaging paper also comprises a sizing layer, and the sizing layer is arranged between the coating layer and the raw paper layer.
In order to solve the above technical problem, the present application adopts another technical solution: the packaging container comprises blister packaging paper and a plastic blister arranged on the blister packaging paper, wherein the packaging container is made of the blister packaging paper.
In order to solve the above technical problem, the present application adopts another technical solution: the manufacturing method of the blister packaging paper is provided, wherein the manufacturing method of the blister packaging paper comprises the following steps: providing a raw paper layer; coating a first coating on the raw paper layer to obtain a first coating layer which is laminated on the raw paper layer; coating the second coating on the first coating layer to obtain blister packaging paper; the second coating comprises the following raw materials in parts by weight: 50-80 parts of second heavy calcium carbonate, 10-20 parts of china clay, 10-30 parts of calcined soil, 14-18 parts of adhesive, 1-3 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent.
The beneficial effect of this application is: different from the prior art, the coating layer in the blister packaging paper provided by the application specifically comprises a first coating layer and a second coating layer which are stacked, the first coating layer is specifically arranged on a raw paper layer of the blister packaging paper, and the second coating layer comprises the following raw materials in parts by weight: 50-80 parts of second heavy calcium carbonate, 10-20 parts of china clay, 10-30 parts of calcined soil, 14-18 parts of adhesive, 1-3 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent, so that the correspondingly obtained blister packaging paper has good blister effect and can also ensure better printing processing adaptability through proper preparation raw materials and proportion.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of the blister pack of the present application;
fig. 2 is a schematic flow chart of an embodiment of the method for manufacturing blister packaging paper according to the present application.
Detailed Description
The inventor finds that the vacuum plastic packaging mainly packages products after plastic blisters are adhered with paper through plastic uptake oil, and the most easily-appearing quality abnormity is poor plastic uptake. The standard for judging whether the paper blister package is qualified is that when the blister cover is torn, more than two thirds of the paper surface of the contact surface can be broken, namely, when the blister cover is torn, the stripping damage of the blister package should occur in the paper layer, namely, the plastic blister is adhered with the paper layer, which indicates that the blister package is successful.
Many theoretical researches are made on the influence factors of the bad plastic suction, such as the components, viscosity, pH value and the like of the plastic suction oil; the components of the ink, the thickness of the film layer, the adaptability of the ink and the blister oil and the like; plastic uptake processes such as temperature, pressure, etc.; the degree of tightness of the paper, the surface strength and internal bond strength of the paper, the microroughness and porosity of the paper coating surface, the paper moisture, and the like. The reason for poor blister is that the damaged interface is not inside the white cardboard layer, that is, when the blister package is torn, the damaged interface is between the blister oil layer and the coating, which indicates that the coating on the surface of the paper is closed, the penetration of the blister oil is difficult, and the bonding force between the blister oil and the coating is insufficient; if the damaged interface occurs on the surface of the white cardboard coating, the strength of the paper coating is low, the coating is tightly sealed, and the plastic uptake oil is difficult to permeate into the paper layer. Wherein, when the damage interface occurs at 1/2 to 1/3 of the thickness of the white card paper, the blister effect is good.
Therefore, in the blister packaging product, when other conditions such as temperature, pressure, blister oil dosage, blister bubble cap and the like are fixed, the quality of the blister effect is mainly determined by the performance of the coated paperboard. Therefore, the strength of the coating layer of the coated white cardboard and the bonding strength of the coating layer and the paper are higher than the internal strength of the paper layer, so that the performance requirement of the blister package can be met.
However, as the plastic-absorbing paper is required to be printed, the coating is closed due to the strength improvement of the coating, the drying speed of the ink is low, and the permeation and drying of the plastic-absorbing oil can be reduced, so that the surfaces of a plastic-absorbing oil layer, an ink layer and a coating layer are easy to damage interfaces, and the plastic absorption is poor; the lower the paper surface strength and the internal bonding strength, the better the blister effect, but the paper surface strength is reduced, and the surface layer peeling phenomenon is easy to occur in the printing process. At present, although research on factors affecting the blister effect is being conducted, there are few reports or published technical documents on how to produce blister paper having good blister effect and suitability for printing.
In order to guarantee that the blister packaging paper has under the prerequisite of good blister effect, can also effectively promote the printing processing adaptability of blister packaging paper, this application provides a blister packaging paper. The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present application.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of blister packaging paper of the present application. In the present embodiment, the blister pack 10 includes: a raw paper layer 11 and a coating layer 12.
The blister packaging paper 10 provided by the present application can be specifically understood as a paperboard for a blister packaging container, so that a plastic blister can be adsorbed and adhered to the blister packaging paper 10 through blister oil, and a closed accommodating cavity is correspondingly formed for accommodating other industrial products, such as a battery, a toothbrush, and the like. Of course, in other embodiments, the blister packaging paper 10 can also be applied to other paper usage scenarios or other article packaging, and the embodiment is not limited thereto.
The plastic suction is a plastic processing technology, and particularly, after a flat plastic hard sheet is heated to be soft, the plastic hard sheet is absorbed on the surface of a mold in a vacuum manner and is molded after being cooled, so that the plastic suction is widely applied to the industries of plastic packaging, lamp decoration, advertisement, decoration and the like. The plastic uptake paper package is made by replacing plastic sheets with paper-plastic composite products.
Specifically, the coating layer 12 in the blister package paper 10 further includes a first coating layer 121 and a second coating layer 122 which are stacked, and the first coating layer 121 is specifically disposed on the raw paper layer 11 in the blister package paper 10.
The second coating layer 122 is specifically prepared from the following raw materials in parts by weight: 50-80 parts of second heavy calcium carbonate, 10-20 parts of china clay, 10-30 parts of calcined soil, 14-18 parts of adhesive, 1-3 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent, so that the correspondingly obtained blister packaging paper 10 has good blister effect and can also ensure better printing and processing adaptability through proper preparation raw materials and proportion.
Further, in an embodiment, the first coating layer 121 is specifically made of the following raw materials: 70-90 parts of first heavy calcium carbonate, 10-30 parts of calcined soil, 14-18 parts of adhesive, 2-4 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent.
Alternatively, the mass ratio of the constituent parts having a particle size of less than 2 μm in the second heavy calcium carbonate is smaller than the mass ratio of the constituent parts having a particle size of less than 2 μm in the first heavy calcium carbonate.
Optionally, the mass proportion of the constituents of the first ground calcium carbonate having a particle size of less than 2 μm is 60% to 75%, and preferably 70%; the mass ratio of the constituent parts having a particle size of less than 2 μm in the second heavy calcium carbonate is 90% to 98% or more, and preferably 93%.
Optionally, the solids content of first coating layer 121 is 63% to 66%, and the solids content of second coating layer 122 is 63% to 66%.
Alternatively, the proportion by mass of the constituent portion having a particle diameter of less than 2um in the calcined soil is 85% to 95%, and preferably 90%.
Optionally, the mass percentage of the constituents of the china clay having a particle size of less than 2um is 98%.
Alternatively, the particle size of the adhesive is 160-180nm, so as to be able to advantageously control the migration rate and migration amount of the latex through a suitable latex particle size, so that when there is a small amount of migration of the latex in the coating layer 12 to the raw paper layer 11, the fiber and the coating pigment can be bonded, and the bonding force between the raw paper layer 11 and the coating layer 12 is effectively improved.
Optionally, the adhesive is specifically one or more of styrene-butadiene latex, styrene-acrylic latex, and any reasonable kind of latex, which is not limited in this application.
Alternatively, the water resistant agent is a polyamide polyurea resin-based polymer.
Optionally, the lubricant is a sodium stearate.
Optionally, the defoamer is a mineral oil.
In one embodiment, the adhesive of the first coating layer 121 is styrene butadiene latex with a particle size of 160-180nm and a glass transition temperature of-5-0 ℃.
Further, the adhesive in the second coating layer 122 is styrene butadiene latex, and has a particle size of 140-160nm and a glass transition temperature of 8-12 ℃; or polyethylene-vinyl acetate latex with the particle size of 250-300nm and the glass transition temperature of 20-25 ℃.
In one embodiment, the raw paper layer 11 further includes a bottom layer 111, a core layer 112, a surface liner layer 113 and a surface layer 114, which are sequentially stacked, and the second coating layer 122 is specifically disposed on the surface layer 114. Wherein the surface layer 114 comprises 25-35% of bleached sulfate softwood pulp and 65-75% of bleached sulfate hardwood pulp by mass ratio respectively; the surface lining layer 113 comprises 20-30% of bleached sulfate softwood pulp and 70-80% of bleached sulfate hardwood pulp by mass ratio respectively; the core layer 112 comprises 5-10% of bleached sulfate softwood pulp, 10-15% of bleached sulfate hardwood pulp and 75-85% of bleached chemithermomechanical pulp in percentage by mass; the bottom layer 111 comprises 15-25% bleached kraft softwood pulp and 75-85% bleached kraft hardwood pulp, by mass, respectively.
It will be appreciated that in the four-ply design of the raw paper ply 11, the internal bond between the face ply 114 and the facing layer 113 is superior to that of the core layer 112, so that peel failure of the blister pack occurs primarily in the core layer 112, while the face ply 114 has better internal bond of fibres which helps to improve blister fastness.
In one embodiment, the blister pack 10 further includes a size layer disposed between the coating layer 12 and the base paper layer 11.
In one embodiment, the coating material of the first coating layer 121 and the coating material of the second coating layer 122 are prepared by the following formulation: adding the dispersed heavy calcium carbonate, the porcelain clay and the calcined soil into a paint preparation tank in sequence according to a paint formula proportion, adding NaOH (sodium hydroxide) to adjust the pH of the pigment slurry to 11 +/-0.5, then adding the soybean protein dry powder into the pigment slurry, stirring for 5-10min at the rotating speed of 3000rpm of 2000-plus-material to ensure that the soybean protein and the pigment are uniformly dispersed, reducing the stirring speed to be within 2000rpm, then adding the latex, and stirring for 2-5 min.
Further, a water-resistant additive, a lubricant, carboxymethyl cellulose, a defoaming agent and other coating aids are sequentially added and stirred for 5-10min to obtain the coating.
Wherein the first coating layer 121 and the second coating layer 122 are each applied at a weight of 10 to 13 gsm.
In one embodiment, the sizing amount corresponding to the size layer coated on the raw paper layer 11 is specifically 0.1-1.0gsm to enable the surface strength of the paperboard to be reduced by extremely low surface sizing, but the migration of the adhesive in the second coating layer 122 to the raw paper layer 11 is controlled to impart a certain bonding force to the fibers in the coating layer 12 and the raw paper layer 11 and to secure the strength and porosity of the second coating layer 122.
The adhesive in the first coating layer 121 is one or two of styrene-butadiene latex and styrene-acrylic latex, wherein the latex has a particle size of 160-180nm, and the latex has a particle size suitable for controlling the migration rate and the migration amount of the latex, and when the latex in the first coating layer 121 migrates to the raw paper layer 11 in a small amount, the latex can also bond the fiber and the first coating layer 121, so as to improve the bonding force between the raw paper layer 11 and the coating layer 12.
Further, soy protein acts as a co-adhesive, part of which will adsorb on the surface of the pigment due to its particular amphoteric structure, while the rest will be present in the liquid phase. Wherein the adsorbed portion of soy protein promotes rapid coating solidification and increases the coating structure with high pore volume; the soy protein in the liquid phase provides a liquid phase viscosity structure, water retention capacity and good lubricity which are beneficial to the running performance of the coating.
In one embodiment, the soy protein used in the coating layer 12 is specifically a low viscosity soy protein that is suitable for coating systems formed with the pigment and binder particle size ranges used herein, resulting in a uniform overall coating pore distribution and minimal effect on the viscosity of the coating after application.
Wherein, the use of 2-4 parts of soy protein in the first coating layer 121 can effectively control the migration of the pre-coated milk; and 1-3 parts of soybean protein is used in the second coating layer 122 to provide a coating structure with high pore volume for the second coating layer 122, so that the second coating layer 122 has higher and uniform microporosity while using a large amount of adhesive to improve the strength of the coating, thereby ensuring that the surface of the coating has proper drying of printing ink and osmotic drying of blister oil, and finally ensuring that the bonding force of the blister oil layer, the printing ink layer, the paper coating layer 12 and the base paper in the blister structure is stronger than the bonding force in the base paper.
In a specific embodiment, the slurry ratio of the raw paper layer 11 in the blister packaging paper 10 may specifically be: pulp formulation of the bottom layer 111, i.e. NBKP (bleached kraft softwood pulp) at 15% and LBKP (bleached kraft hardwood pulp) at 85% by mass; the pulp of the core layer 112 was formulated with 10% NBKP, 15% LBKP and 75% BCTMP (bleached chemithermomechanical pulp); the slurry of the facing layer 113 was formulated with 20% NBKP and 80% LBKP; the slurry of face layer 114 was formulated to have 25% NBKP and 75% LBKP. And 0.2g/m is sprayed in the slurry of the raw paper layer 11 2 And a surface sizing amount of 0.5g/m 2 。
Further, the main formulation and mass ratio of the first coating layer 121 in the blister packaging paper 10 are 95% of GCC65 (65-grade heavy calcium carbonate), 5% of flaky soil, 15% of precoated SB (butylbenzene) latex, and 1% of soybean protein, and the coating amount is 11g/m 2 (ii) a The second coating layer 122 comprises 65% of GCC97 (97-grade heavy calcium carbonate), 25% of china clay, 10% of calcined soil, 15% of top-coated SB latex, VAE latex and 2% of soybean protein, and the coating weight is 11g/m 2 So as to obtain better plastic uptake effect.
In another specific embodiment, the slurry ratio of the raw paper layer 11 in the blister packaging paper 10 may also be: slurry blending of the bottom layer 111, namely NBKP with the mass ratio of 15% and LBKP with the mass ratio of 85%; the pulp of the core layer 112 was formulated with 10% NBKP, 15% LBKP and 75% BCTMP; the slurry of the facing layer 113 was formulated with 20% NBKP and 80% LBKP; the slurry of the top layer 114 was formulated to 25% NBKP and 75% LBKP, and had a surface sizing amount of 1g/m 2 。
Further, the main formulation and mass ratio of the first coating layer 121 in the blister packaging paper 10 are 95% of GCC65, 5% of flaky soil, 15% of precoated SB latex, and 1% of soy protein, and the coating amount is 95%11g/m 2 (ii) a The second coating layer 122 comprises 65% of GCC97, 25% of china clay, 10% of calcined clay, 15% of top-coated SB latex and 2% of soybean protein by mass, and the coating weight is 11g/m 2 So that a good blister effect can be obtained.
In another specific embodiment, the slurry ratio of the raw paper layer 11 in the blister packaging paper 10 may also be: slurry blending of the bottom layer 111, namely NBKP with the mass ratio of 15% and LBKP with the mass ratio of 85%; the pulp of the core layer 112 was formulated with 10% NBKP, 15% LBKP and 75% BCTMP; the slurry of the facing layer 113 was formulated with 20% NBKP and 80% LBKP; the slurry of the top layer 114 was formulated to 25% NBKP and 75% LBKP, and had a surface sizing amount of 1g/m 2 。
Further, the main formulation and mass ratio of the first coating layer 121 in the blister packaging paper 10 are 95% of GCC65 (65-grade heavy calcium carbonate), 5% of clay flakes, 7% of precoated SB (butylbenzene) latex, 12% of VAE (vinyl acetate-ethylene copolymer) latex, and 1% of soy protein, and the coating amount is 11g/m 2 (ii) a The second coating layer 122 comprises 65% of GCC97 (97-grade heavy calcium carbonate), 25% of china clay, 10% of calcined clay, 7% of top-coated SB latex, 11% of VAE latex, and 2% of soybean protein, and the coating weight is 11g/m 2 So as to obtain better plastic uptake effect.
Therefore, the final finished blister packaging paper 10 can have a good blister effect and can also ensure good printing adaptability through the appropriate composition, mass ratio and coating amount of each preparation material in the raw paper layer 11 and the coating layer 12. In other embodiments, the raw paper layer 11 and the coating layer 12 may be prepared from any other suitable materials, such as, but not limited to, sizing agent, total coating amount, and coating times.
In an embodiment, the blister packaging paper 10 may further specifically include an ink layer (not shown), a blister oil layer (not shown), and a blister shell layer (not shown) sequentially stacked on the second coating layer 122, that is, the blister packaging paper 10 is specifically a blister paperboard, and the ink layer, the blister oil layer, and the blister shell layer may be specifically manufactured by a conventional technical means, and are not described herein again.
Based on the general inventive concept, the present application further provides a packaging container, wherein the packaging container (not shown) specifically comprises a blister packaging paper (not shown) and a plastic blister (not shown) arranged on the blister packaging paper, and the packaging container is made of the blister packaging paper 10 as described in any one of the above.
The blister packaging paper is specifically understood to be a paperboard for a blister packaging container, so that a closed accommodating cavity can be correspondingly formed by adsorbing and adhering a plastic blister on the blister packaging paper, and the plastic blister can be used for accommodating other industrial products, such as batteries, toothbrushes and the like. Of course, in other embodiments, the blister packaging paper may also be applied to other paper usage scenarios or other article packaging, and this embodiment is not limited thereto.
Based on the general inventive concept, the present application further provides a manufacturing method of blister packaging paper, please refer to fig. 2, and fig. 2 is a schematic flow diagram of an embodiment of the manufacturing method of blister packaging paper of the present application. The implementation mode comprises the following steps:
s21: providing a raw paper layer.
Specifically, a raw paper layer is provided, for example, the raw paper layer specifically comprises a bottom layer, a core layer, a surface lining layer and a surface layer which are sequentially stacked.
In one embodiment, the raw paper layer further includes a bottom layer, a core layer, a surface liner layer and a surface layer, which are sequentially stacked, and the second coating layer is specifically disposed on the surface layer. Wherein, the surface layer comprises 25-35% of bleached sulfate softwood pulp and 65-75% of bleached sulfate hardwood pulp by mass ratio respectively; the surface lining layer comprises 20-30% of bleached sulfate softwood pulp and 70-80% of bleached sulfate hardwood pulp in mass ratio respectively; the core layer comprises 5-10% of bleached sulfate softwood pulp, 10-15% of bleached sulfate hardwood pulp and 75-85% of bleached chemithermomechanical pulp in percentage by mass; the bottom layer comprises 15-25% of bleached sulfate softwood pulp and 75-85% of bleached sulfate hardwood pulp by mass ratio respectively.
It will be appreciated that in the four-ply design of the raw paper ply, the internal bond between the face ply and the face liner is superior to that of the core layer, so that peel failure of blister packs occurs mainly in the core layer, while the face ply has a better internal bond of fibres which contributes to the blister fastness.
S22: the first coating is coated on the raw paper layer to obtain a first coating layer which is laminated on the raw paper layer.
Further, the first coating material prepared in advance is coated on the base paper layer to obtain a first coating layer laminated on the base paper layer.
The first coating is specifically prepared from the following raw materials in parts by weight: 70-90 parts of first heavy calcium carbonate, 10-30 parts of calcined soil, 14-18 parts of adhesive, 2-4 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoamer, so that the correspondingly obtained blister packaging paper can have a good blister effect and can also ensure good printing and processing adaptability through proper preparation raw materials and proportions.
S23: and coating the second coating on the first coating layer to obtain the blister packaging paper.
And further coating a second coating prepared in advance on the first coating layer to obtain the blister packaging paper.
The second coating comprises the following raw materials in parts by weight: 50-80 parts of second heavy calcium carbonate, 10-20 parts of china clay, 10-30 parts of calcined soil, 14-18 parts of adhesive, 1-3 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent, so that the correspondingly obtained blister packaging paper has good blister effect and can also ensure better printing processing adaptability through proper preparation raw materials and proportion.
In one embodiment, the first coating is specifically prepared from the following raw materials in parts by weight: 70-90 parts of first heavy calcium carbonate, 10-30 parts of calcined soil, 14-18 parts of adhesive, 2-4 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent.
Alternatively, the mass proportion of the constituent having a particle size of less than 2 μm in the second heavy calcium carbonate is smaller than the mass proportion of the constituent having a particle size of less than 2 μm in the first heavy calcium carbonate.
Optionally, the mass proportion of the constituents of the first ground calcium carbonate having a particle size of less than 2 μm is 60% to 75%, and preferably 70%; the mass ratio of the constituent parts having a particle size of less than 2 μm in the second heavy calcium carbonate is 90% to 98% or more, and preferably 93%.
Optionally, the first coating has a solids content of 63% to 66% and the second coating has a solids content of 63% to 66%.
Alternatively, the proportion by mass of the constituent portion having a particle diameter of less than 2um in the calcined soil is 85% to 95%, and preferably 90%.
Optionally, the mass percentage of the constituents of the china clay having a particle size of less than 2um is 98%.
Optionally, the particle size of the adhesive is 160-180nm, so that the migration rate and the migration amount of the latex can be controlled advantageously by the proper latex particle size, and when the latex in the coating layer migrates a small amount to the raw paper layer, the fiber and the coating pigment can be bonded, so that the bonding force between the raw paper layer and the coating layer is effectively improved.
Optionally, the adhesive is specifically one or more of styrene-butadiene latex, styrene-acrylic latex, and any reasonable kind of latex, which is not limited in this application.
Alternatively, the water resistant agent is a polyamide polyurea resin-based polymer.
Optionally, the lubricant is a sodium stearate.
Optionally, the defoamer is a mineral oil.
In one embodiment, the binder in the first coating is styrene butadiene latex with a particle size of 160-180nm and a glass transition temperature of-5-0 ℃.
Further, the adhesive in the second coating is styrene butadiene latex, the particle size is 140-160nm, and the glass transition temperature is 8-12 ℃; or, the polyethylene-vinyl acetate latex has the particle size of 250-300nm and the glass transition temperature of 20-25 ℃.
In one embodiment, the first coating and the second coating are specifically prepared by the following formulation: adding the dispersed heavy calcium carbonate, the porcelain clay and the calcined soil into a paint preparation tank in sequence according to a paint formula proportion, adding NaOH (sodium hydroxide) to adjust the pH of the pigment slurry to 11 +/-0.5, then adding the soybean protein dry powder into the pigment slurry, stirring for 5-10min at the rotating speed of 3000rpm of 2000-plus-material to ensure that the soybean protein and the pigment are uniformly dispersed, reducing the stirring speed to be within 2000rpm, then adding the latex, and stirring for 2-5 min.
Further, a water-resistant additive, a lubricant, carboxymethyl cellulose, a defoaming agent and other coating aids are sequentially added and stirred for 5-10min to obtain the coating.
Wherein the coating weight of the first coating and the second coating is 10-13 gsm.
The adhesive in the first coating is one or two of styrene-butadiene latex and styrene-acrylic latex, wherein the particle size of the latex is 160-180nm, and the proper particle size of the latex is favorable for controlling the migration rate and the migration amount of the latex.
Further, soy protein acts as a co-adhesive, part of which will adsorb on the pigment surface due to its particular amphoteric structure, while the rest will be present in the liquid phase. Wherein the adsorbed portion of soy protein promotes rapid coating cure and adds a coating structure with high pore volume; the soy protein in the liquid phase provides a liquid phase viscosity structure, water retention capacity and good lubricity which are beneficial to the running performance of the coating.
In one embodiment, the soy protein used in the coating is specifically a low viscosity soy protein that is suitable for coating systems formed with the pigment and binder particle size ranges used herein, resulting in a uniform overall coating pore distribution and minimal effect on the coating viscosity after application.
Wherein, 2-4 parts of soy protein used in the first coating can effectively control the migration of the pre-coated emulsion; and 1-3 parts of soybean protein is used in the second coating to effectively provide a coating structure with high pore volume, so that the second coating has higher and uniform microporosity while using a large amount of adhesive to improve the coating strength, thereby ensuring that the coating surface has proper printing ink drying and blister oil osmotic drying, and finally ensuring that the bonding force of a blister oil layer, a printing ink layer, a paper coating layer, the paper coating layer and base paper in the blister structure is stronger than the bonding force in the base paper.
Further, in an embodiment, after S21 and before S22, the method may further include: and coating a sizing layer on the raw paper layer. And S22 may specifically be: the first coating is applied to the size layer to provide a first coated layer having a laminate disposed on the size layer.
In one embodiment, the sizing amount corresponding to the size layer coated on the raw paper layer is specifically 0.1-1.0gsm to enable the surface strength of the paperboard to be reduced by extremely low surface sizing, but the migration of the adhesive in the second coating to the raw paper layer is controlled to impart a certain bonding force to the coating layer and the fibers in the raw paper layer and to ensure the strength and porosity of the second coating.
The beneficial effect of this application is: different from the prior art, the coating layer in the blister packaging paper provided by the application specifically comprises a first coating layer and a second coating layer which are stacked, the second coating layer is specifically arranged on a raw paper layer of the blister packaging paper, and the second coating layer comprises the following raw materials in parts by weight: 50-80 parts of second heavy calcium carbonate, 10-20 parts of china clay, 10-30 parts of calcined soil, 14-18 parts of adhesive, 1-3 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent, so that the correspondingly obtained blister packaging paper has good blister effect and can also ensure better printing processing adaptability through proper preparation raw materials and proportion.
The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. A blister pack paper, comprising:
a raw paper layer;
a coating layer including a first coating layer and a second coating layer disposed in a stack, the first coating layer disposed on the raw paper layer;
wherein the second coating layer comprises the following raw materials in parts by weight: 50-80 parts of second heavy calcium carbonate, 10-20 parts of china clay, 10-30 parts of calcined soil, 14-18 parts of adhesive, 1-3 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent.
2. The blister package paper of claim 1,
the first coating layer comprises the following raw materials in parts by weight: 70-90 parts of first heavy calcium carbonate, 10-30 parts of calcined soil, 14-18 parts of adhesive, 2-4 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent.
3. The blister package paper of claim 2,
the mass ratio of the constituent parts with the particle size smaller than 2 microns in the second heavy calcium carbonate is smaller than that of the constituent parts with the particle size smaller than 2 microns in the first heavy calcium carbonate.
4. The blister package paper of claim 2,
the mass percentage of the components with the particle size less than 2 microns in the first heavy calcium carbonate is 60-75%; the mass ratio of the components with the particle size less than 2 microns in the second heavy calcium carbonate is greater than or equal to 90-98%.
5. The blister package paper of claim 2,
the solid content of the first coating layer is 63% -66%; the solid content of the second coating layer is 63% -66%.
6. The blister package paper of any one of claims 1 to 5,
the particle size of the adhesive is 160-180 nanometers.
7. The blister package paper of any one of claims 1 to 5,
the raw paper layer comprises a bottom layer, a core layer, a surface lining layer and a surface layer which are sequentially stacked, wherein the second coating layer is arranged on the surface layer, and the surface layer comprises 25-35% of bleached sulfate softwood pulp and 65-75% of bleached sulfate hardwood pulp in mass percentage; the surface lining comprises 20-30% of bleached sulfate softwood pulp and 70-80% of bleached sulfate hardwood pulp in mass percentage; the core layer comprises 5-10% of bleached sulfate softwood pulp, 10-15% of bleached sulfate hardwood pulp and 75-85% of bleached chemithermomechanical pulp in percentage by mass; the bottom layer comprises 15-25% of bleached sulfate softwood pulp and 75-85% of bleached sulfate hardwood pulp in mass ratio.
8. Blister packaging paper according to any one of claims 1 to 5,
the plastic uptake packing paper also comprises a sizing layer, and the sizing layer is arranged between the coating layer and the raw paper layer.
9. A packaging container comprising blister packaging paper and a plastic blister arranged on the blister packaging paper, wherein the blister packaging paper is the blister packaging paper of any one of claims 1 to 8.
10. The manufacturing method of the blister packaging paper is characterized by comprising the following steps:
providing a raw paper layer;
coating a first coating on the raw paper layer to obtain a first coating layer which is laminated on the raw paper layer;
coating a second coating on the first coating layer to obtain the blister packaging paper; the second coating comprises the following raw materials in parts by weight: 50-80 parts of second heavy calcium carbonate, 10-20 parts of china clay, 10-30 parts of calcined soil, 14-18 parts of adhesive, 1-3 parts of soybean protein, 0.1-0.7 part of waterproof agent, 0.1-0.5 part of lubricant, 0.05-0.10 part of sodium hydroxide, 0.2-0.4 part of carboxymethyl cellulose and 0.05-0.15 part of defoaming agent.
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Application publication date: 20220816 |